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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-13 00:17:42 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-11 02:33:50 -0700
commit874aeea5d01cac55c160a4e503e3ddb4db030de7 (patch)
tree2ec67fc737ebc853d954b914a70098ece1ded19b /drivers/net/ethernet
parentcassini/niu/sun*: Move the Sun drivers (diff)
downloadlinux-dev-874aeea5d01cac55c160a4e503e3ddb4db030de7.tar.xz
linux-dev-874aeea5d01cac55c160a4e503e3ddb4db030de7.zip
sfc: Move the Solarflare drivers
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and make the necessary Kconfig and Makefile changes. CC: Steve Hodgson <shodgson@solarflare.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/Kconfig1
-rw-r--r--drivers/net/ethernet/Makefile1
-rw-r--r--drivers/net/ethernet/sfc/Kconfig21
-rw-r--r--drivers/net/ethernet/sfc/Makefile8
-rw-r--r--drivers/net/ethernet/sfc/bitfield.h538
-rw-r--r--drivers/net/ethernet/sfc/efx.c2714
-rw-r--r--drivers/net/ethernet/sfc/efx.h147
-rw-r--r--drivers/net/ethernet/sfc/enum.h167
-rw-r--r--drivers/net/ethernet/sfc/ethtool.c1012
-rw-r--r--drivers/net/ethernet/sfc/falcon.c1841
-rw-r--r--drivers/net/ethernet/sfc/falcon_boards.c776
-rw-r--r--drivers/net/ethernet/sfc/falcon_xmac.c369
-rw-r--r--drivers/net/ethernet/sfc/filter.c727
-rw-r--r--drivers/net/ethernet/sfc/filter.h112
-rw-r--r--drivers/net/ethernet/sfc/io.h299
-rw-r--r--drivers/net/ethernet/sfc/mac.h21
-rw-r--r--drivers/net/ethernet/sfc/mcdi.c1203
-rw-r--r--drivers/net/ethernet/sfc/mcdi.h130
-rw-r--r--drivers/net/ethernet/sfc/mcdi_mac.c145
-rw-r--r--drivers/net/ethernet/sfc/mcdi_pcol.h1775
-rw-r--r--drivers/net/ethernet/sfc/mcdi_phy.c754
-rw-r--r--drivers/net/ethernet/sfc/mdio_10g.c323
-rw-r--r--drivers/net/ethernet/sfc/mdio_10g.h112
-rw-r--r--drivers/net/ethernet/sfc/mtd.c693
-rw-r--r--drivers/net/ethernet/sfc/net_driver.h1060
-rw-r--r--drivers/net/ethernet/sfc/nic.c1969
-rw-r--r--drivers/net/ethernet/sfc/nic.h273
-rw-r--r--drivers/net/ethernet/sfc/phy.h67
-rw-r--r--drivers/net/ethernet/sfc/qt202x_phy.c462
-rw-r--r--drivers/net/ethernet/sfc/regs.h3188
-rw-r--r--drivers/net/ethernet/sfc/rx.c749
-rw-r--r--drivers/net/ethernet/sfc/selftest.c761
-rw-r--r--drivers/net/ethernet/sfc/selftest.h53
-rw-r--r--drivers/net/ethernet/sfc/siena.c676
-rw-r--r--drivers/net/ethernet/sfc/spi.h99
-rw-r--r--drivers/net/ethernet/sfc/tenxpress.c494
-rw-r--r--drivers/net/ethernet/sfc/tx.c1212
-rw-r--r--drivers/net/ethernet/sfc/txc43128_phy.c560
-rw-r--r--drivers/net/ethernet/sfc/workarounds.h61
39 files changed, 25573 insertions, 0 deletions
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index 5edd2371c53f..0bc6635b071b 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -20,6 +20,7 @@ source "drivers/net/ethernet/intel/Kconfig"
source "drivers/net/ethernet/i825xx/Kconfig"
source "drivers/net/ethernet/qlogic/Kconfig"
source "drivers/net/ethernet/racal/Kconfig"
+source "drivers/net/ethernet/sfc/Kconfig"
source "drivers/net/ethernet/smsc/Kconfig"
source "drivers/net/ethernet/sun/Kconfig"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 18d8a893d78b..50faab53b95b 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -11,5 +11,6 @@ obj-$(CONFIG_NET_VENDOR_INTEL) += intel/
obj-$(CONFIG_NET_VENDOR_I825XX) += i825xx/
obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
+obj-$(CONFIG_SFC) += sfc/
obj-$(CONFIG_NET_VENDOR_SMSC) += smsc/
obj-$(CONFIG_NET_VENDOR_SUN) += sun/
diff --git a/drivers/net/ethernet/sfc/Kconfig b/drivers/net/ethernet/sfc/Kconfig
new file mode 100644
index 000000000000..5d18841f0f3d
--- /dev/null
+++ b/drivers/net/ethernet/sfc/Kconfig
@@ -0,0 +1,21 @@
+config SFC
+ tristate "Solarflare SFC4000/SFC9000-family support"
+ depends on PCI && INET
+ select MDIO
+ select CRC32
+ select I2C
+ select I2C_ALGOBIT
+ ---help---
+ This driver supports 10-gigabit Ethernet cards based on
+ the Solarflare SFC4000 and SFC9000-family controllers.
+
+ To compile this driver as a module, choose M here. The module
+ will be called sfc.
+config SFC_MTD
+ bool "Solarflare SFC4000/SFC9000-family MTD support"
+ depends on SFC && MTD && !(SFC=y && MTD=m)
+ default y
+ ---help---
+ This exposes the on-board flash memory as MTD devices (e.g.
+ /dev/mtd1). This makes it possible to upload new firmware
+ to the NIC.
diff --git a/drivers/net/ethernet/sfc/Makefile b/drivers/net/ethernet/sfc/Makefile
new file mode 100644
index 000000000000..ab31c7124db1
--- /dev/null
+++ b/drivers/net/ethernet/sfc/Makefile
@@ -0,0 +1,8 @@
+sfc-y += efx.o nic.o falcon.o siena.o tx.o rx.o filter.o \
+ falcon_xmac.o mcdi_mac.o \
+ selftest.o ethtool.o qt202x_phy.o mdio_10g.o \
+ tenxpress.o txc43128_phy.o falcon_boards.o \
+ mcdi.o mcdi_phy.o
+sfc-$(CONFIG_SFC_MTD) += mtd.o
+
+obj-$(CONFIG_SFC) += sfc.o
diff --git a/drivers/net/ethernet/sfc/bitfield.h b/drivers/net/ethernet/sfc/bitfield.h
new file mode 100644
index 000000000000..098ac2ad757d
--- /dev/null
+++ b/drivers/net/ethernet/sfc/bitfield.h
@@ -0,0 +1,538 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2009 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_BITFIELD_H
+#define EFX_BITFIELD_H
+
+/*
+ * Efx bitfield access
+ *
+ * Efx NICs make extensive use of bitfields up to 128 bits
+ * wide. Since there is no native 128-bit datatype on most systems,
+ * and since 64-bit datatypes are inefficient on 32-bit systems and
+ * vice versa, we wrap accesses in a way that uses the most efficient
+ * datatype.
+ *
+ * The NICs are PCI devices and therefore little-endian. Since most
+ * of the quantities that we deal with are DMAed to/from host memory,
+ * we define our datatypes (efx_oword_t, efx_qword_t and
+ * efx_dword_t) to be little-endian.
+ */
+
+/* Lowest bit numbers and widths */
+#define EFX_DUMMY_FIELD_LBN 0
+#define EFX_DUMMY_FIELD_WIDTH 0
+#define EFX_DWORD_0_LBN 0
+#define EFX_DWORD_0_WIDTH 32
+#define EFX_DWORD_1_LBN 32
+#define EFX_DWORD_1_WIDTH 32
+#define EFX_DWORD_2_LBN 64
+#define EFX_DWORD_2_WIDTH 32
+#define EFX_DWORD_3_LBN 96
+#define EFX_DWORD_3_WIDTH 32
+#define EFX_QWORD_0_LBN 0
+#define EFX_QWORD_0_WIDTH 64
+
+/* Specified attribute (e.g. LBN) of the specified field */
+#define EFX_VAL(field, attribute) field ## _ ## attribute
+/* Low bit number of the specified field */
+#define EFX_LOW_BIT(field) EFX_VAL(field, LBN)
+/* Bit width of the specified field */
+#define EFX_WIDTH(field) EFX_VAL(field, WIDTH)
+/* High bit number of the specified field */
+#define EFX_HIGH_BIT(field) (EFX_LOW_BIT(field) + EFX_WIDTH(field) - 1)
+/* Mask equal in width to the specified field.
+ *
+ * For example, a field with width 5 would have a mask of 0x1f.
+ *
+ * The maximum width mask that can be generated is 64 bits.
+ */
+#define EFX_MASK64(width) \
+ ((width) == 64 ? ~((u64) 0) : \
+ (((((u64) 1) << (width))) - 1))
+
+/* Mask equal in width to the specified field.
+ *
+ * For example, a field with width 5 would have a mask of 0x1f.
+ *
+ * The maximum width mask that can be generated is 32 bits. Use
+ * EFX_MASK64 for higher width fields.
+ */
+#define EFX_MASK32(width) \
+ ((width) == 32 ? ~((u32) 0) : \
+ (((((u32) 1) << (width))) - 1))
+
+/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */
+typedef union efx_dword {
+ __le32 u32[1];
+} efx_dword_t;
+
+/* A quadword (i.e. 8 byte) datatype - little-endian in HW */
+typedef union efx_qword {
+ __le64 u64[1];
+ __le32 u32[2];
+ efx_dword_t dword[2];
+} efx_qword_t;
+
+/* An octword (eight-word, i.e. 16 byte) datatype - little-endian in HW */
+typedef union efx_oword {
+ __le64 u64[2];
+ efx_qword_t qword[2];
+ __le32 u32[4];
+ efx_dword_t dword[4];
+} efx_oword_t;
+
+/* Format string and value expanders for printk */
+#define EFX_DWORD_FMT "%08x"
+#define EFX_QWORD_FMT "%08x:%08x"
+#define EFX_OWORD_FMT "%08x:%08x:%08x:%08x"
+#define EFX_DWORD_VAL(dword) \
+ ((unsigned int) le32_to_cpu((dword).u32[0]))
+#define EFX_QWORD_VAL(qword) \
+ ((unsigned int) le32_to_cpu((qword).u32[1])), \
+ ((unsigned int) le32_to_cpu((qword).u32[0]))
+#define EFX_OWORD_VAL(oword) \
+ ((unsigned int) le32_to_cpu((oword).u32[3])), \
+ ((unsigned int) le32_to_cpu((oword).u32[2])), \
+ ((unsigned int) le32_to_cpu((oword).u32[1])), \
+ ((unsigned int) le32_to_cpu((oword).u32[0]))
+
+/*
+ * Extract bit field portion [low,high) from the native-endian element
+ * which contains bits [min,max).
+ *
+ * For example, suppose "element" represents the high 32 bits of a
+ * 64-bit value, and we wish to extract the bits belonging to the bit
+ * field occupying bits 28-45 of this 64-bit value.
+ *
+ * Then EFX_EXTRACT ( element, 32, 63, 28, 45 ) would give
+ *
+ * ( element ) << 4
+ *
+ * The result will contain the relevant bits filled in in the range
+ * [0,high-low), with garbage in bits [high-low+1,...).
+ */
+#define EFX_EXTRACT_NATIVE(native_element, min, max, low, high) \
+ (((low > max) || (high < min)) ? 0 : \
+ ((low > min) ? \
+ ((native_element) >> (low - min)) : \
+ ((native_element) << (min - low))))
+
+/*
+ * Extract bit field portion [low,high) from the 64-bit little-endian
+ * element which contains bits [min,max)
+ */
+#define EFX_EXTRACT64(element, min, max, low, high) \
+ EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
+
+/*
+ * Extract bit field portion [low,high) from the 32-bit little-endian
+ * element which contains bits [min,max)
+ */
+#define EFX_EXTRACT32(element, min, max, low, high) \
+ EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
+
+#define EFX_EXTRACT_OWORD64(oword, low, high) \
+ ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
+ EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \
+ EFX_MASK64(high + 1 - low))
+
+#define EFX_EXTRACT_QWORD64(qword, low, high) \
+ (EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) & \
+ EFX_MASK64(high + 1 - low))
+
+#define EFX_EXTRACT_OWORD32(oword, low, high) \
+ ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
+ EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
+ EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
+ EFX_MASK32(high + 1 - low))
+
+#define EFX_EXTRACT_QWORD32(qword, low, high) \
+ ((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
+ EFX_MASK32(high + 1 - low))
+
+#define EFX_EXTRACT_DWORD(dword, low, high) \
+ (EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) & \
+ EFX_MASK32(high + 1 - low))
+
+#define EFX_OWORD_FIELD64(oword, field) \
+ EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
+
+#define EFX_QWORD_FIELD64(qword, field) \
+ EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
+
+#define EFX_OWORD_FIELD32(oword, field) \
+ EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
+
+#define EFX_QWORD_FIELD32(qword, field) \
+ EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
+
+#define EFX_DWORD_FIELD(dword, field) \
+ EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
+
+#define EFX_OWORD_IS_ZERO64(oword) \
+ (((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0)
+
+#define EFX_QWORD_IS_ZERO64(qword) \
+ (((qword).u64[0]) == (__force __le64) 0)
+
+#define EFX_OWORD_IS_ZERO32(oword) \
+ (((oword).u32[0] | (oword).u32[1] | (oword).u32[2] | (oword).u32[3]) \
+ == (__force __le32) 0)
+
+#define EFX_QWORD_IS_ZERO32(qword) \
+ (((qword).u32[0] | (qword).u32[1]) == (__force __le32) 0)
+
+#define EFX_DWORD_IS_ZERO(dword) \
+ (((dword).u32[0]) == (__force __le32) 0)
+
+#define EFX_OWORD_IS_ALL_ONES64(oword) \
+ (((oword).u64[0] & (oword).u64[1]) == ~((__force __le64) 0))
+
+#define EFX_QWORD_IS_ALL_ONES64(qword) \
+ ((qword).u64[0] == ~((__force __le64) 0))
+
+#define EFX_OWORD_IS_ALL_ONES32(oword) \
+ (((oword).u32[0] & (oword).u32[1] & (oword).u32[2] & (oword).u32[3]) \
+ == ~((__force __le32) 0))
+
+#define EFX_QWORD_IS_ALL_ONES32(qword) \
+ (((qword).u32[0] & (qword).u32[1]) == ~((__force __le32) 0))
+
+#define EFX_DWORD_IS_ALL_ONES(dword) \
+ ((dword).u32[0] == ~((__force __le32) 0))
+
+#if BITS_PER_LONG == 64
+#define EFX_OWORD_FIELD EFX_OWORD_FIELD64
+#define EFX_QWORD_FIELD EFX_QWORD_FIELD64
+#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO64
+#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO64
+#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES64
+#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES64
+#else
+#define EFX_OWORD_FIELD EFX_OWORD_FIELD32
+#define EFX_QWORD_FIELD EFX_QWORD_FIELD32
+#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO32
+#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO32
+#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES32
+#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES32
+#endif
+
+/*
+ * Construct bit field portion
+ *
+ * Creates the portion of the bit field [low,high) that lies within
+ * the range [min,max).
+ */
+#define EFX_INSERT_NATIVE64(min, max, low, high, value) \
+ (((low > max) || (high < min)) ? 0 : \
+ ((low > min) ? \
+ (((u64) (value)) << (low - min)) : \
+ (((u64) (value)) >> (min - low))))
+
+#define EFX_INSERT_NATIVE32(min, max, low, high, value) \
+ (((low > max) || (high < min)) ? 0 : \
+ ((low > min) ? \
+ (((u32) (value)) << (low - min)) : \
+ (((u32) (value)) >> (min - low))))
+
+#define EFX_INSERT_NATIVE(min, max, low, high, value) \
+ ((((max - min) >= 32) || ((high - low) >= 32)) ? \
+ EFX_INSERT_NATIVE64(min, max, low, high, value) : \
+ EFX_INSERT_NATIVE32(min, max, low, high, value))
+
+/*
+ * Construct bit field portion
+ *
+ * Creates the portion of the named bit field that lies within the
+ * range [min,max).
+ */
+#define EFX_INSERT_FIELD_NATIVE(min, max, field, value) \
+ EFX_INSERT_NATIVE(min, max, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+/*
+ * Construct bit field
+ *
+ * Creates the portion of the named bit fields that lie within the
+ * range [min,max).
+ */
+#define EFX_INSERT_FIELDS_NATIVE(min, max, \
+ field1, value1, \
+ field2, value2, \
+ field3, value3, \
+ field4, value4, \
+ field5, value5, \
+ field6, value6, \
+ field7, value7, \
+ field8, value8, \
+ field9, value9, \
+ field10, value10) \
+ (EFX_INSERT_FIELD_NATIVE((min), (max), field1, (value1)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field2, (value2)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field3, (value3)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field4, (value4)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field5, (value5)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field6, (value6)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field7, (value7)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field8, (value8)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field9, (value9)) | \
+ EFX_INSERT_FIELD_NATIVE((min), (max), field10, (value10)))
+
+#define EFX_INSERT_FIELDS64(...) \
+ cpu_to_le64(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__))
+
+#define EFX_INSERT_FIELDS32(...) \
+ cpu_to_le32(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__))
+
+#define EFX_POPULATE_OWORD64(oword, ...) do { \
+ (oword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \
+ (oword).u64[1] = EFX_INSERT_FIELDS64(64, 127, __VA_ARGS__); \
+ } while (0)
+
+#define EFX_POPULATE_QWORD64(qword, ...) do { \
+ (qword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \
+ } while (0)
+
+#define EFX_POPULATE_OWORD32(oword, ...) do { \
+ (oword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
+ (oword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \
+ (oword).u32[2] = EFX_INSERT_FIELDS32(64, 95, __VA_ARGS__); \
+ (oword).u32[3] = EFX_INSERT_FIELDS32(96, 127, __VA_ARGS__); \
+ } while (0)
+
+#define EFX_POPULATE_QWORD32(qword, ...) do { \
+ (qword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
+ (qword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \
+ } while (0)
+
+#define EFX_POPULATE_DWORD(dword, ...) do { \
+ (dword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
+ } while (0)
+
+#if BITS_PER_LONG == 64
+#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD64
+#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD64
+#else
+#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD32
+#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD32
+#endif
+
+/* Populate an octword field with various numbers of arguments */
+#define EFX_POPULATE_OWORD_10 EFX_POPULATE_OWORD
+#define EFX_POPULATE_OWORD_9(oword, ...) \
+ EFX_POPULATE_OWORD_10(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_8(oword, ...) \
+ EFX_POPULATE_OWORD_9(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_7(oword, ...) \
+ EFX_POPULATE_OWORD_8(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_6(oword, ...) \
+ EFX_POPULATE_OWORD_7(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_5(oword, ...) \
+ EFX_POPULATE_OWORD_6(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_4(oword, ...) \
+ EFX_POPULATE_OWORD_5(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_3(oword, ...) \
+ EFX_POPULATE_OWORD_4(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_2(oword, ...) \
+ EFX_POPULATE_OWORD_3(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_OWORD_1(oword, ...) \
+ EFX_POPULATE_OWORD_2(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_ZERO_OWORD(oword) \
+ EFX_POPULATE_OWORD_1(oword, EFX_DUMMY_FIELD, 0)
+#define EFX_SET_OWORD(oword) \
+ EFX_POPULATE_OWORD_4(oword, \
+ EFX_DWORD_0, 0xffffffff, \
+ EFX_DWORD_1, 0xffffffff, \
+ EFX_DWORD_2, 0xffffffff, \
+ EFX_DWORD_3, 0xffffffff)
+
+/* Populate a quadword field with various numbers of arguments */
+#define EFX_POPULATE_QWORD_10 EFX_POPULATE_QWORD
+#define EFX_POPULATE_QWORD_9(qword, ...) \
+ EFX_POPULATE_QWORD_10(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_8(qword, ...) \
+ EFX_POPULATE_QWORD_9(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_7(qword, ...) \
+ EFX_POPULATE_QWORD_8(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_6(qword, ...) \
+ EFX_POPULATE_QWORD_7(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_5(qword, ...) \
+ EFX_POPULATE_QWORD_6(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_4(qword, ...) \
+ EFX_POPULATE_QWORD_5(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_3(qword, ...) \
+ EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_2(qword, ...) \
+ EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_QWORD_1(qword, ...) \
+ EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_ZERO_QWORD(qword) \
+ EFX_POPULATE_QWORD_1(qword, EFX_DUMMY_FIELD, 0)
+#define EFX_SET_QWORD(qword) \
+ EFX_POPULATE_QWORD_2(qword, \
+ EFX_DWORD_0, 0xffffffff, \
+ EFX_DWORD_1, 0xffffffff)
+
+/* Populate a dword field with various numbers of arguments */
+#define EFX_POPULATE_DWORD_10 EFX_POPULATE_DWORD
+#define EFX_POPULATE_DWORD_9(dword, ...) \
+ EFX_POPULATE_DWORD_10(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_8(dword, ...) \
+ EFX_POPULATE_DWORD_9(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_7(dword, ...) \
+ EFX_POPULATE_DWORD_8(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_6(dword, ...) \
+ EFX_POPULATE_DWORD_7(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_5(dword, ...) \
+ EFX_POPULATE_DWORD_6(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_4(dword, ...) \
+ EFX_POPULATE_DWORD_5(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_3(dword, ...) \
+ EFX_POPULATE_DWORD_4(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_2(dword, ...) \
+ EFX_POPULATE_DWORD_3(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_POPULATE_DWORD_1(dword, ...) \
+ EFX_POPULATE_DWORD_2(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
+#define EFX_ZERO_DWORD(dword) \
+ EFX_POPULATE_DWORD_1(dword, EFX_DUMMY_FIELD, 0)
+#define EFX_SET_DWORD(dword) \
+ EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xffffffff)
+
+/*
+ * Modify a named field within an already-populated structure. Used
+ * for read-modify-write operations.
+ *
+ */
+#define EFX_INVERT_OWORD(oword) do { \
+ (oword).u64[0] = ~((oword).u64[0]); \
+ (oword).u64[1] = ~((oword).u64[1]); \
+ } while (0)
+
+#define EFX_AND_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \
+ } while (0)
+
+#define EFX_OR_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \
+ } while (0)
+
+#define EFX_INSERT64(min, max, low, high, value) \
+ cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
+
+#define EFX_INSERT32(min, max, low, high, value) \
+ cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
+
+#define EFX_INPLACE_MASK64(min, max, low, high) \
+ EFX_INSERT64(min, max, low, high, EFX_MASK64(high + 1 - low))
+
+#define EFX_INPLACE_MASK32(min, max, low, high) \
+ EFX_INSERT32(min, max, low, high, EFX_MASK32(high + 1 - low))
+
+#define EFX_SET_OWORD64(oword, low, high, value) do { \
+ (oword).u64[0] = (((oword).u64[0] \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
+ (oword).u64[1] = (((oword).u64[1] \
+ & ~EFX_INPLACE_MASK64(64, 127, low, high)) \
+ | EFX_INSERT64(64, 127, low, high, value)); \
+ } while (0)
+
+#define EFX_SET_QWORD64(qword, low, high, value) do { \
+ (qword).u64[0] = (((qword).u64[0] \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
+ } while (0)
+
+#define EFX_SET_OWORD32(oword, low, high, value) do { \
+ (oword).u32[0] = (((oword).u32[0] \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
+ (oword).u32[1] = (((oword).u32[1] \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
+ (oword).u32[2] = (((oword).u32[2] \
+ & ~EFX_INPLACE_MASK32(64, 95, low, high)) \
+ | EFX_INSERT32(64, 95, low, high, value)); \
+ (oword).u32[3] = (((oword).u32[3] \
+ & ~EFX_INPLACE_MASK32(96, 127, low, high)) \
+ | EFX_INSERT32(96, 127, low, high, value)); \
+ } while (0)
+
+#define EFX_SET_QWORD32(qword, low, high, value) do { \
+ (qword).u32[0] = (((qword).u32[0] \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
+ (qword).u32[1] = (((qword).u32[1] \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
+ } while (0)
+
+#define EFX_SET_DWORD32(dword, low, high, value) do { \
+ (dword).u32[0] = (((dword).u32[0] \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
+ } while (0)
+
+#define EFX_SET_OWORD_FIELD64(oword, field, value) \
+ EFX_SET_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD64(qword, field, value) \
+ EFX_SET_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_OWORD_FIELD32(oword, field, value) \
+ EFX_SET_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD32(qword, field, value) \
+ EFX_SET_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_DWORD_FIELD(dword, field, value) \
+ EFX_SET_DWORD32(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+
+
+#if BITS_PER_LONG == 64
+#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64
+#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64
+#else
+#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD32
+#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD32
+#endif
+
+/* Used to avoid compiler warnings about shift range exceeding width
+ * of the data types when dma_addr_t is only 32 bits wide.
+ */
+#define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t))
+#define EFX_DMA_TYPE_WIDTH(width) \
+ (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
+
+
+/* Static initialiser */
+#define EFX_OWORD32(a, b, c, d) \
+ { .u32 = { cpu_to_le32(a), cpu_to_le32(b), \
+ cpu_to_le32(c), cpu_to_le32(d) } }
+
+#endif /* EFX_BITFIELD_H */
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
new file mode 100644
index 000000000000..faca764aa21b
--- /dev/null
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -0,0 +1,2714 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2005-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/notifier.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/in.h>
+#include <linux/crc32.h>
+#include <linux/ethtool.h>
+#include <linux/topology.h>
+#include <linux/gfp.h>
+#include <linux/cpu_rmap.h>
+#include "net_driver.h"
+#include "efx.h"
+#include "nic.h"
+
+#include "mcdi.h"
+#include "workarounds.h"
+
+/**************************************************************************
+ *
+ * Type name strings
+ *
+ **************************************************************************
+ */
+
+/* Loopback mode names (see LOOPBACK_MODE()) */
+const unsigned int efx_loopback_mode_max = LOOPBACK_MAX;
+const char *efx_loopback_mode_names[] = {
+ [LOOPBACK_NONE] = "NONE",
+ [LOOPBACK_DATA] = "DATAPATH",
+ [LOOPBACK_GMAC] = "GMAC",
+ [LOOPBACK_XGMII] = "XGMII",
+ [LOOPBACK_XGXS] = "XGXS",
+ [LOOPBACK_XAUI] = "XAUI",
+ [LOOPBACK_GMII] = "GMII",
+ [LOOPBACK_SGMII] = "SGMII",
+ [LOOPBACK_XGBR] = "XGBR",
+ [LOOPBACK_XFI] = "XFI",
+ [LOOPBACK_XAUI_FAR] = "XAUI_FAR",
+ [LOOPBACK_GMII_FAR] = "GMII_FAR",
+ [LOOPBACK_SGMII_FAR] = "SGMII_FAR",
+ [LOOPBACK_XFI_FAR] = "XFI_FAR",
+ [LOOPBACK_GPHY] = "GPHY",
+ [LOOPBACK_PHYXS] = "PHYXS",
+ [LOOPBACK_PCS] = "PCS",
+ [LOOPBACK_PMAPMD] = "PMA/PMD",
+ [LOOPBACK_XPORT] = "XPORT",
+ [LOOPBACK_XGMII_WS] = "XGMII_WS",
+ [LOOPBACK_XAUI_WS] = "XAUI_WS",
+ [LOOPBACK_XAUI_WS_FAR] = "XAUI_WS_FAR",
+ [LOOPBACK_XAUI_WS_NEAR] = "XAUI_WS_NEAR",
+ [LOOPBACK_GMII_WS] = "GMII_WS",
+ [LOOPBACK_XFI_WS] = "XFI_WS",
+ [LOOPBACK_XFI_WS_FAR] = "XFI_WS_FAR",
+ [LOOPBACK_PHYXS_WS] = "PHYXS_WS",
+};
+
+const unsigned int efx_reset_type_max = RESET_TYPE_MAX;
+const char *efx_reset_type_names[] = {
+ [RESET_TYPE_INVISIBLE] = "INVISIBLE",
+ [RESET_TYPE_ALL] = "ALL",
+ [RESET_TYPE_WORLD] = "WORLD",
+ [RESET_TYPE_DISABLE] = "DISABLE",
+ [RESET_TYPE_TX_WATCHDOG] = "TX_WATCHDOG",
+ [RESET_TYPE_INT_ERROR] = "INT_ERROR",
+ [RESET_TYPE_RX_RECOVERY] = "RX_RECOVERY",
+ [RESET_TYPE_RX_DESC_FETCH] = "RX_DESC_FETCH",
+ [RESET_TYPE_TX_DESC_FETCH] = "TX_DESC_FETCH",
+ [RESET_TYPE_TX_SKIP] = "TX_SKIP",
+ [RESET_TYPE_MC_FAILURE] = "MC_FAILURE",
+};
+
+#define EFX_MAX_MTU (9 * 1024)
+
+/* Reset workqueue. If any NIC has a hardware failure then a reset will be
+ * queued onto this work queue. This is not a per-nic work queue, because
+ * efx_reset_work() acquires the rtnl lock, so resets are naturally serialised.
+ */
+static struct workqueue_struct *reset_workqueue;
+
+/**************************************************************************
+ *
+ * Configurable values
+ *
+ *************************************************************************/
+
+/*
+ * Use separate channels for TX and RX events
+ *
+ * Set this to 1 to use separate channels for TX and RX. It allows us
+ * to control interrupt affinity separately for TX and RX.
+ *
+ * This is only used in MSI-X interrupt mode
+ */
+static unsigned int separate_tx_channels;
+module_param(separate_tx_channels, uint, 0444);
+MODULE_PARM_DESC(separate_tx_channels,
+ "Use separate channels for TX and RX");
+
+/* This is the weight assigned to each of the (per-channel) virtual
+ * NAPI devices.
+ */
+static int napi_weight = 64;
+
+/* This is the time (in jiffies) between invocations of the hardware
+ * monitor. On Falcon-based NICs, this will:
+ * - Check the on-board hardware monitor;
+ * - Poll the link state and reconfigure the hardware as necessary.
+ */
+static unsigned int efx_monitor_interval = 1 * HZ;
+
+/* This controls whether or not the driver will initialise devices
+ * with invalid MAC addresses stored in the EEPROM or flash. If true,
+ * such devices will be initialised with a random locally-generated
+ * MAC address. This allows for loading the sfc_mtd driver to
+ * reprogram the flash, even if the flash contents (including the MAC
+ * address) have previously been erased.
+ */
+static unsigned int allow_bad_hwaddr;
+
+/* Initial interrupt moderation settings. They can be modified after
+ * module load with ethtool.
+ *
+ * The default for RX should strike a balance between increasing the
+ * round-trip latency and reducing overhead.
+ */
+static unsigned int rx_irq_mod_usec = 60;
+
+/* Initial interrupt moderation settings. They can be modified after
+ * module load with ethtool.
+ *
+ * This default is chosen to ensure that a 10G link does not go idle
+ * while a TX queue is stopped after it has become full. A queue is
+ * restarted when it drops below half full. The time this takes (assuming
+ * worst case 3 descriptors per packet and 1024 descriptors) is
+ * 512 / 3 * 1.2 = 205 usec.
+ */
+static unsigned int tx_irq_mod_usec = 150;
+
+/* This is the first interrupt mode to try out of:
+ * 0 => MSI-X
+ * 1 => MSI
+ * 2 => legacy
+ */
+static unsigned int interrupt_mode;
+
+/* This is the requested number of CPUs to use for Receive-Side Scaling (RSS),
+ * i.e. the number of CPUs among which we may distribute simultaneous
+ * interrupt handling.
+ *
+ * Cards without MSI-X will only target one CPU via legacy or MSI interrupt.
+ * The default (0) means to assign an interrupt to each package (level II cache)
+ */
+static unsigned int rss_cpus;
+module_param(rss_cpus, uint, 0444);
+MODULE_PARM_DESC(rss_cpus, "Number of CPUs to use for Receive-Side Scaling");
+
+static int phy_flash_cfg;
+module_param(phy_flash_cfg, int, 0644);
+MODULE_PARM_DESC(phy_flash_cfg, "Set PHYs into reflash mode initially");
+
+static unsigned irq_adapt_low_thresh = 10000;
+module_param(irq_adapt_low_thresh, uint, 0644);
+MODULE_PARM_DESC(irq_adapt_low_thresh,
+ "Threshold score for reducing IRQ moderation");
+
+static unsigned irq_adapt_high_thresh = 20000;
+module_param(irq_adapt_high_thresh, uint, 0644);
+MODULE_PARM_DESC(irq_adapt_high_thresh,
+ "Threshold score for increasing IRQ moderation");
+
+static unsigned debug = (NETIF_MSG_DRV | NETIF_MSG_PROBE |
+ NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
+ NETIF_MSG_IFUP | NETIF_MSG_RX_ERR |
+ NETIF_MSG_TX_ERR | NETIF_MSG_HW);
+module_param(debug, uint, 0);
+MODULE_PARM_DESC(debug, "Bitmapped debugging message enable value");
+
+/**************************************************************************
+ *
+ * Utility functions and prototypes
+ *
+ *************************************************************************/
+
+static void efx_remove_channels(struct efx_nic *efx);
+static void efx_remove_port(struct efx_nic *efx);
+static void efx_init_napi(struct efx_nic *efx);
+static void efx_fini_napi(struct efx_nic *efx);
+static void efx_fini_napi_channel(struct efx_channel *channel);
+static void efx_fini_struct(struct efx_nic *efx);
+static void efx_start_all(struct efx_nic *efx);
+static void efx_stop_all(struct efx_nic *efx);
+
+#define EFX_ASSERT_RESET_SERIALISED(efx) \
+ do { \
+ if ((efx->state == STATE_RUNNING) || \
+ (efx->state == STATE_DISABLED)) \
+ ASSERT_RTNL(); \
+ } while (0)
+
+/**************************************************************************
+ *
+ * Event queue processing
+ *
+ *************************************************************************/
+
+/* Process channel's event queue
+ *
+ * This function is responsible for processing the event queue of a
+ * single channel. The caller must guarantee that this function will
+ * never be concurrently called more than once on the same channel,
+ * though different channels may be being processed concurrently.
+ */
+static int efx_process_channel(struct efx_channel *channel, int budget)
+{
+ struct efx_nic *efx = channel->efx;
+ int spent;
+
+ if (unlikely(efx->reset_pending || !channel->enabled))
+ return 0;
+
+ spent = efx_nic_process_eventq(channel, budget);
+ if (spent == 0)
+ return 0;
+
+ /* Deliver last RX packet. */
+ if (channel->rx_pkt) {
+ __efx_rx_packet(channel, channel->rx_pkt,
+ channel->rx_pkt_csummed);
+ channel->rx_pkt = NULL;
+ }
+
+ efx_rx_strategy(channel);
+
+ efx_fast_push_rx_descriptors(efx_channel_get_rx_queue(channel));
+
+ return spent;
+}
+
+/* Mark channel as finished processing
+ *
+ * Note that since we will not receive further interrupts for this
+ * channel before we finish processing and call the eventq_read_ack()
+ * method, there is no need to use the interrupt hold-off timers.
+ */
+static inline void efx_channel_processed(struct efx_channel *channel)
+{
+ /* The interrupt handler for this channel may set work_pending
+ * as soon as we acknowledge the events we've seen. Make sure
+ * it's cleared before then. */
+ channel->work_pending = false;
+ smp_wmb();
+
+ efx_nic_eventq_read_ack(channel);
+}
+
+/* NAPI poll handler
+ *
+ * NAPI guarantees serialisation of polls of the same device, which
+ * provides the guarantee required by efx_process_channel().
+ */
+static int efx_poll(struct napi_struct *napi, int budget)
+{
+ struct efx_channel *channel =
+ container_of(napi, struct efx_channel, napi_str);
+ struct efx_nic *efx = channel->efx;
+ int spent;
+
+ netif_vdbg(efx, intr, efx->net_dev,
+ "channel %d NAPI poll executing on CPU %d\n",
+ channel->channel, raw_smp_processor_id());
+
+ spent = efx_process_channel(channel, budget);
+
+ if (spent < budget) {
+ if (channel->channel < efx->n_rx_channels &&
+ efx->irq_rx_adaptive &&
+ unlikely(++channel->irq_count == 1000)) {
+ if (unlikely(channel->irq_mod_score <
+ irq_adapt_low_thresh)) {
+ if (channel->irq_moderation > 1) {
+ channel->irq_moderation -= 1;
+ efx->type->push_irq_moderation(channel);
+ }
+ } else if (unlikely(channel->irq_mod_score >
+ irq_adapt_high_thresh)) {
+ if (channel->irq_moderation <
+ efx->irq_rx_moderation) {
+ channel->irq_moderation += 1;
+ efx->type->push_irq_moderation(channel);
+ }
+ }
+ channel->irq_count = 0;
+ channel->irq_mod_score = 0;
+ }
+
+ efx_filter_rfs_expire(channel);
+
+ /* There is no race here; although napi_disable() will
+ * only wait for napi_complete(), this isn't a problem
+ * since efx_channel_processed() will have no effect if
+ * interrupts have already been disabled.
+ */
+ napi_complete(napi);
+ efx_channel_processed(channel);
+ }
+
+ return spent;
+}
+
+/* Process the eventq of the specified channel immediately on this CPU
+ *
+ * Disable hardware generated interrupts, wait for any existing
+ * processing to finish, then directly poll (and ack ) the eventq.
+ * Finally reenable NAPI and interrupts.
+ *
+ * This is for use only during a loopback self-test. It must not
+ * deliver any packets up the stack as this can result in deadlock.
+ */
+void efx_process_channel_now(struct efx_channel *channel)
+{
+ struct efx_nic *efx = channel->efx;
+
+ BUG_ON(channel->channel >= efx->n_channels);
+ BUG_ON(!channel->enabled);
+ BUG_ON(!efx->loopback_selftest);
+
+ /* Disable interrupts and wait for ISRs to complete */
+ efx_nic_disable_interrupts(efx);
+ if (efx->legacy_irq) {
+ synchronize_irq(efx->legacy_irq);
+ efx->legacy_irq_enabled = false;
+ }
+ if (channel->irq)
+ synchronize_irq(channel->irq);
+
+ /* Wait for any NAPI processing to complete */
+ napi_disable(&channel->napi_str);
+
+ /* Poll the channel */
+ efx_process_channel(channel, channel->eventq_mask + 1);
+
+ /* Ack the eventq. This may cause an interrupt to be generated
+ * when they are reenabled */
+ efx_channel_processed(channel);
+
+ napi_enable(&channel->napi_str);
+ if (efx->legacy_irq)
+ efx->legacy_irq_enabled = true;
+ efx_nic_enable_interrupts(efx);
+}
+
+/* Create event queue
+ * Event queue memory allocations are done only once. If the channel
+ * is reset, the memory buffer will be reused; this guards against
+ * errors during channel reset and also simplifies interrupt handling.
+ */
+static int efx_probe_eventq(struct efx_channel *channel)
+{
+ struct efx_nic *efx = channel->efx;
+ unsigned long entries;
+
+ netif_dbg(channel->efx, probe, channel->efx->net_dev,
+ "chan %d create event queue\n", channel->channel);
+
+ /* Build an event queue with room for one event per tx and rx buffer,
+ * plus some extra for link state events and MCDI completions. */
+ entries = roundup_pow_of_two(efx->rxq_entries + efx->txq_entries + 128);
+ EFX_BUG_ON_PARANOID(entries > EFX_MAX_EVQ_SIZE);
+ channel->eventq_mask = max(entries, EFX_MIN_EVQ_SIZE) - 1;
+
+ return efx_nic_probe_eventq(channel);
+}
+
+/* Prepare channel's event queue */
+static void efx_init_eventq(struct efx_channel *channel)
+{
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "chan %d init event queue\n", channel->channel);
+
+ channel->eventq_read_ptr = 0;
+
+ efx_nic_init_eventq(channel);
+}
+
+static void efx_fini_eventq(struct efx_channel *channel)
+{
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "chan %d fini event queue\n", channel->channel);
+
+ efx_nic_fini_eventq(channel);
+}
+
+static void efx_remove_eventq(struct efx_channel *channel)
+{
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "chan %d remove event queue\n", channel->channel);
+
+ efx_nic_remove_eventq(channel);
+}
+
+/**************************************************************************
+ *
+ * Channel handling
+ *
+ *************************************************************************/
+
+/* Allocate and initialise a channel structure, optionally copying
+ * parameters (but not resources) from an old channel structure. */
+static struct efx_channel *
+efx_alloc_channel(struct efx_nic *efx, int i, struct efx_channel *old_channel)
+{
+ struct efx_channel *channel;
+ struct efx_rx_queue *rx_queue;
+ struct efx_tx_queue *tx_queue;
+ int j;
+
+ if (old_channel) {
+ channel = kmalloc(sizeof(*channel), GFP_KERNEL);
+ if (!channel)
+ return NULL;
+
+ *channel = *old_channel;
+
+ channel->napi_dev = NULL;
+ memset(&channel->eventq, 0, sizeof(channel->eventq));
+
+ rx_queue = &channel->rx_queue;
+ rx_queue->buffer = NULL;
+ memset(&rx_queue->rxd, 0, sizeof(rx_queue->rxd));
+
+ for (j = 0; j < EFX_TXQ_TYPES; j++) {
+ tx_queue = &channel->tx_queue[j];
+ if (tx_queue->channel)
+ tx_queue->channel = channel;
+ tx_queue->buffer = NULL;
+ memset(&tx_queue->txd, 0, sizeof(tx_queue->txd));
+ }
+ } else {
+ channel = kzalloc(sizeof(*channel), GFP_KERNEL);
+ if (!channel)
+ return NULL;
+
+ channel->efx = efx;
+ channel->channel = i;
+
+ for (j = 0; j < EFX_TXQ_TYPES; j++) {
+ tx_queue = &channel->tx_queue[j];
+ tx_queue->efx = efx;
+ tx_queue->queue = i * EFX_TXQ_TYPES + j;
+ tx_queue->channel = channel;
+ }
+ }
+
+ rx_queue = &channel->rx_queue;
+ rx_queue->efx = efx;
+ setup_timer(&rx_queue->slow_fill, efx_rx_slow_fill,
+ (unsigned long)rx_queue);
+
+ return channel;
+}
+
+static int efx_probe_channel(struct efx_channel *channel)
+{
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ int rc;
+
+ netif_dbg(channel->efx, probe, channel->efx->net_dev,
+ "creating channel %d\n", channel->channel);
+
+ rc = efx_probe_eventq(channel);
+ if (rc)
+ goto fail1;
+
+ efx_for_each_channel_tx_queue(tx_queue, channel) {
+ rc = efx_probe_tx_queue(tx_queue);
+ if (rc)
+ goto fail2;
+ }
+
+ efx_for_each_channel_rx_queue(rx_queue, channel) {
+ rc = efx_probe_rx_queue(rx_queue);
+ if (rc)
+ goto fail3;
+ }
+
+ channel->n_rx_frm_trunc = 0;
+
+ return 0;
+
+ fail3:
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_remove_rx_queue(rx_queue);
+ fail2:
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_remove_tx_queue(tx_queue);
+ fail1:
+ return rc;
+}
+
+
+static void efx_set_channel_names(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ const char *type = "";
+ int number;
+
+ efx_for_each_channel(channel, efx) {
+ number = channel->channel;
+ if (efx->n_channels > efx->n_rx_channels) {
+ if (channel->channel < efx->n_rx_channels) {
+ type = "-rx";
+ } else {
+ type = "-tx";
+ number -= efx->n_rx_channels;
+ }
+ }
+ snprintf(efx->channel_name[channel->channel],
+ sizeof(efx->channel_name[0]),
+ "%s%s-%d", efx->name, type, number);
+ }
+}
+
+static int efx_probe_channels(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ int rc;
+
+ /* Restart special buffer allocation */
+ efx->next_buffer_table = 0;
+
+ efx_for_each_channel(channel, efx) {
+ rc = efx_probe_channel(channel);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to create channel %d\n",
+ channel->channel);
+ goto fail;
+ }
+ }
+ efx_set_channel_names(efx);
+
+ return 0;
+
+fail:
+ efx_remove_channels(efx);
+ return rc;
+}
+
+/* Channels are shutdown and reinitialised whilst the NIC is running
+ * to propagate configuration changes (mtu, checksum offload), or
+ * to clear hardware error conditions
+ */
+static void efx_init_channels(struct efx_nic *efx)
+{
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ struct efx_channel *channel;
+
+ /* Calculate the rx buffer allocation parameters required to
+ * support the current MTU, including padding for header
+ * alignment and overruns.
+ */
+ efx->rx_buffer_len = (max(EFX_PAGE_IP_ALIGN, NET_IP_ALIGN) +
+ EFX_MAX_FRAME_LEN(efx->net_dev->mtu) +
+ efx->type->rx_buffer_hash_size +
+ efx->type->rx_buffer_padding);
+ efx->rx_buffer_order = get_order(efx->rx_buffer_len +
+ sizeof(struct efx_rx_page_state));
+
+ /* Initialise the channels */
+ efx_for_each_channel(channel, efx) {
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "init chan %d\n", channel->channel);
+
+ efx_init_eventq(channel);
+
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_init_tx_queue(tx_queue);
+
+ /* The rx buffer allocation strategy is MTU dependent */
+ efx_rx_strategy(channel);
+
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_init_rx_queue(rx_queue);
+
+ WARN_ON(channel->rx_pkt != NULL);
+ efx_rx_strategy(channel);
+ }
+}
+
+/* This enables event queue processing and packet transmission.
+ *
+ * Note that this function is not allowed to fail, since that would
+ * introduce too much complexity into the suspend/resume path.
+ */
+static void efx_start_channel(struct efx_channel *channel)
+{
+ struct efx_rx_queue *rx_queue;
+
+ netif_dbg(channel->efx, ifup, channel->efx->net_dev,
+ "starting chan %d\n", channel->channel);
+
+ /* The interrupt handler for this channel may set work_pending
+ * as soon as we enable it. Make sure it's cleared before
+ * then. Similarly, make sure it sees the enabled flag set. */
+ channel->work_pending = false;
+ channel->enabled = true;
+ smp_wmb();
+
+ /* Fill the queues before enabling NAPI */
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_fast_push_rx_descriptors(rx_queue);
+
+ napi_enable(&channel->napi_str);
+}
+
+/* This disables event queue processing and packet transmission.
+ * This function does not guarantee that all queue processing
+ * (e.g. RX refill) is complete.
+ */
+static void efx_stop_channel(struct efx_channel *channel)
+{
+ if (!channel->enabled)
+ return;
+
+ netif_dbg(channel->efx, ifdown, channel->efx->net_dev,
+ "stop chan %d\n", channel->channel);
+
+ channel->enabled = false;
+ napi_disable(&channel->napi_str);
+}
+
+static void efx_fini_channels(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ int rc;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+ BUG_ON(efx->port_enabled);
+
+ rc = efx_nic_flush_queues(efx);
+ if (rc && EFX_WORKAROUND_7803(efx)) {
+ /* Schedule a reset to recover from the flush failure. The
+ * descriptor caches reference memory we're about to free,
+ * but falcon_reconfigure_mac_wrapper() won't reconnect
+ * the MACs because of the pending reset. */
+ netif_err(efx, drv, efx->net_dev,
+ "Resetting to recover from flush failure\n");
+ efx_schedule_reset(efx, RESET_TYPE_ALL);
+ } else if (rc) {
+ netif_err(efx, drv, efx->net_dev, "failed to flush queues\n");
+ } else {
+ netif_dbg(efx, drv, efx->net_dev,
+ "successfully flushed all queues\n");
+ }
+
+ efx_for_each_channel(channel, efx) {
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "shut down chan %d\n", channel->channel);
+
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_fini_rx_queue(rx_queue);
+ efx_for_each_possible_channel_tx_queue(tx_queue, channel)
+ efx_fini_tx_queue(tx_queue);
+ efx_fini_eventq(channel);
+ }
+}
+
+static void efx_remove_channel(struct efx_channel *channel)
+{
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+
+ netif_dbg(channel->efx, drv, channel->efx->net_dev,
+ "destroy chan %d\n", channel->channel);
+
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_remove_rx_queue(rx_queue);
+ efx_for_each_possible_channel_tx_queue(tx_queue, channel)
+ efx_remove_tx_queue(tx_queue);
+ efx_remove_eventq(channel);
+}
+
+static void efx_remove_channels(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ efx_for_each_channel(channel, efx)
+ efx_remove_channel(channel);
+}
+
+int
+efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
+{
+ struct efx_channel *other_channel[EFX_MAX_CHANNELS], *channel;
+ u32 old_rxq_entries, old_txq_entries;
+ unsigned i;
+ int rc;
+
+ efx_stop_all(efx);
+ efx_fini_channels(efx);
+
+ /* Clone channels */
+ memset(other_channel, 0, sizeof(other_channel));
+ for (i = 0; i < efx->n_channels; i++) {
+ channel = efx_alloc_channel(efx, i, efx->channel[i]);
+ if (!channel) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ other_channel[i] = channel;
+ }
+
+ /* Swap entry counts and channel pointers */
+ old_rxq_entries = efx->rxq_entries;
+ old_txq_entries = efx->txq_entries;
+ efx->rxq_entries = rxq_entries;
+ efx->txq_entries = txq_entries;
+ for (i = 0; i < efx->n_channels; i++) {
+ channel = efx->channel[i];
+ efx->channel[i] = other_channel[i];
+ other_channel[i] = channel;
+ }
+
+ rc = efx_probe_channels(efx);
+ if (rc)
+ goto rollback;
+
+ efx_init_napi(efx);
+
+ /* Destroy old channels */
+ for (i = 0; i < efx->n_channels; i++) {
+ efx_fini_napi_channel(other_channel[i]);
+ efx_remove_channel(other_channel[i]);
+ }
+out:
+ /* Free unused channel structures */
+ for (i = 0; i < efx->n_channels; i++)
+ kfree(other_channel[i]);
+
+ efx_init_channels(efx);
+ efx_start_all(efx);
+ return rc;
+
+rollback:
+ /* Swap back */
+ efx->rxq_entries = old_rxq_entries;
+ efx->txq_entries = old_txq_entries;
+ for (i = 0; i < efx->n_channels; i++) {
+ channel = efx->channel[i];
+ efx->channel[i] = other_channel[i];
+ other_channel[i] = channel;
+ }
+ goto out;
+}
+
+void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue)
+{
+ mod_timer(&rx_queue->slow_fill, jiffies + msecs_to_jiffies(100));
+}
+
+/**************************************************************************
+ *
+ * Port handling
+ *
+ **************************************************************************/
+
+/* This ensures that the kernel is kept informed (via
+ * netif_carrier_on/off) of the link status, and also maintains the
+ * link status's stop on the port's TX queue.
+ */
+void efx_link_status_changed(struct efx_nic *efx)
+{
+ struct efx_link_state *link_state = &efx->link_state;
+
+ /* SFC Bug 5356: A net_dev notifier is registered, so we must ensure
+ * that no events are triggered between unregister_netdev() and the
+ * driver unloading. A more general condition is that NETDEV_CHANGE
+ * can only be generated between NETDEV_UP and NETDEV_DOWN */
+ if (!netif_running(efx->net_dev))
+ return;
+
+ if (link_state->up != netif_carrier_ok(efx->net_dev)) {
+ efx->n_link_state_changes++;
+
+ if (link_state->up)
+ netif_carrier_on(efx->net_dev);
+ else
+ netif_carrier_off(efx->net_dev);
+ }
+
+ /* Status message for kernel log */
+ if (link_state->up) {
+ netif_info(efx, link, efx->net_dev,
+ "link up at %uMbps %s-duplex (MTU %d)%s\n",
+ link_state->speed, link_state->fd ? "full" : "half",
+ efx->net_dev->mtu,
+ (efx->promiscuous ? " [PROMISC]" : ""));
+ } else {
+ netif_info(efx, link, efx->net_dev, "link down\n");
+ }
+
+}
+
+void efx_link_set_advertising(struct efx_nic *efx, u32 advertising)
+{
+ efx->link_advertising = advertising;
+ if (advertising) {
+ if (advertising & ADVERTISED_Pause)
+ efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX);
+ else
+ efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
+ if (advertising & ADVERTISED_Asym_Pause)
+ efx->wanted_fc ^= EFX_FC_TX;
+ }
+}
+
+void efx_link_set_wanted_fc(struct efx_nic *efx, u8 wanted_fc)
+{
+ efx->wanted_fc = wanted_fc;
+ if (efx->link_advertising) {
+ if (wanted_fc & EFX_FC_RX)
+ efx->link_advertising |= (ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ else
+ efx->link_advertising &= ~(ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ if (wanted_fc & EFX_FC_TX)
+ efx->link_advertising ^= ADVERTISED_Asym_Pause;
+ }
+}
+
+static void efx_fini_port(struct efx_nic *efx);
+
+/* Push loopback/power/transmit disable settings to the PHY, and reconfigure
+ * the MAC appropriately. All other PHY configuration changes are pushed
+ * through phy_op->set_settings(), and pushed asynchronously to the MAC
+ * through efx_monitor().
+ *
+ * Callers must hold the mac_lock
+ */
+int __efx_reconfigure_port(struct efx_nic *efx)
+{
+ enum efx_phy_mode phy_mode;
+ int rc;
+
+ WARN_ON(!mutex_is_locked(&efx->mac_lock));
+
+ /* Serialise the promiscuous flag with efx_set_multicast_list. */
+ if (efx_dev_registered(efx)) {
+ netif_addr_lock_bh(efx->net_dev);
+ netif_addr_unlock_bh(efx->net_dev);
+ }
+
+ /* Disable PHY transmit in mac level loopbacks */
+ phy_mode = efx->phy_mode;
+ if (LOOPBACK_INTERNAL(efx))
+ efx->phy_mode |= PHY_MODE_TX_DISABLED;
+ else
+ efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
+
+ rc = efx->type->reconfigure_port(efx);
+
+ if (rc)
+ efx->phy_mode = phy_mode;
+
+ return rc;
+}
+
+/* Reinitialise the MAC to pick up new PHY settings, even if the port is
+ * disabled. */
+int efx_reconfigure_port(struct efx_nic *efx)
+{
+ int rc;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ mutex_lock(&efx->mac_lock);
+ rc = __efx_reconfigure_port(efx);
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
+
+/* Asynchronous work item for changing MAC promiscuity and multicast
+ * hash. Avoid a drain/rx_ingress enable by reconfiguring the current
+ * MAC directly. */
+static void efx_mac_work(struct work_struct *data)
+{
+ struct efx_nic *efx = container_of(data, struct efx_nic, mac_work);
+
+ mutex_lock(&efx->mac_lock);
+ if (efx->port_enabled) {
+ efx->type->push_multicast_hash(efx);
+ efx->mac_op->reconfigure(efx);
+ }
+ mutex_unlock(&efx->mac_lock);
+}
+
+static int efx_probe_port(struct efx_nic *efx)
+{
+ unsigned char *perm_addr;
+ int rc;
+
+ netif_dbg(efx, probe, efx->net_dev, "create port\n");
+
+ if (phy_flash_cfg)
+ efx->phy_mode = PHY_MODE_SPECIAL;
+
+ /* Connect up MAC/PHY operations table */
+ rc = efx->type->probe_port(efx);
+ if (rc)
+ return rc;
+
+ /* Sanity check MAC address */
+ perm_addr = efx->net_dev->perm_addr;
+ if (is_valid_ether_addr(perm_addr)) {
+ memcpy(efx->net_dev->dev_addr, perm_addr, ETH_ALEN);
+ } else {
+ netif_err(efx, probe, efx->net_dev, "invalid MAC address %pM\n",
+ perm_addr);
+ if (!allow_bad_hwaddr) {
+ rc = -EINVAL;
+ goto err;
+ }
+ random_ether_addr(efx->net_dev->dev_addr);
+ netif_info(efx, probe, efx->net_dev,
+ "using locally-generated MAC %pM\n",
+ efx->net_dev->dev_addr);
+ }
+
+ return 0;
+
+ err:
+ efx->type->remove_port(efx);
+ return rc;
+}
+
+static int efx_init_port(struct efx_nic *efx)
+{
+ int rc;
+
+ netif_dbg(efx, drv, efx->net_dev, "init port\n");
+
+ mutex_lock(&efx->mac_lock);
+
+ rc = efx->phy_op->init(efx);
+ if (rc)
+ goto fail1;
+
+ efx->port_initialized = true;
+
+ /* Reconfigure the MAC before creating dma queues (required for
+ * Falcon/A1 where RX_INGR_EN/TX_DRAIN_EN isn't supported) */
+ efx->mac_op->reconfigure(efx);
+
+ /* Ensure the PHY advertises the correct flow control settings */
+ rc = efx->phy_op->reconfigure(efx);
+ if (rc)
+ goto fail2;
+
+ mutex_unlock(&efx->mac_lock);
+ return 0;
+
+fail2:
+ efx->phy_op->fini(efx);
+fail1:
+ mutex_unlock(&efx->mac_lock);
+ return rc;
+}
+
+static void efx_start_port(struct efx_nic *efx)
+{
+ netif_dbg(efx, ifup, efx->net_dev, "start port\n");
+ BUG_ON(efx->port_enabled);
+
+ mutex_lock(&efx->mac_lock);
+ efx->port_enabled = true;
+
+ /* efx_mac_work() might have been scheduled after efx_stop_port(),
+ * and then cancelled by efx_flush_all() */
+ efx->type->push_multicast_hash(efx);
+ efx->mac_op->reconfigure(efx);
+
+ mutex_unlock(&efx->mac_lock);
+}
+
+/* Prevent efx_mac_work() and efx_monitor() from working */
+static void efx_stop_port(struct efx_nic *efx)
+{
+ netif_dbg(efx, ifdown, efx->net_dev, "stop port\n");
+
+ mutex_lock(&efx->mac_lock);
+ efx->port_enabled = false;
+ mutex_unlock(&efx->mac_lock);
+
+ /* Serialise against efx_set_multicast_list() */
+ if (efx_dev_registered(efx)) {
+ netif_addr_lock_bh(efx->net_dev);
+ netif_addr_unlock_bh(efx->net_dev);
+ }
+}
+
+static void efx_fini_port(struct efx_nic *efx)
+{
+ netif_dbg(efx, drv, efx->net_dev, "shut down port\n");
+
+ if (!efx->port_initialized)
+ return;
+
+ efx->phy_op->fini(efx);
+ efx->port_initialized = false;
+
+ efx->link_state.up = false;
+ efx_link_status_changed(efx);
+}
+
+static void efx_remove_port(struct efx_nic *efx)
+{
+ netif_dbg(efx, drv, efx->net_dev, "destroying port\n");
+
+ efx->type->remove_port(efx);
+}
+
+/**************************************************************************
+ *
+ * NIC handling
+ *
+ **************************************************************************/
+
+/* This configures the PCI device to enable I/O and DMA. */
+static int efx_init_io(struct efx_nic *efx)
+{
+ struct pci_dev *pci_dev = efx->pci_dev;
+ dma_addr_t dma_mask = efx->type->max_dma_mask;
+ bool use_wc;
+ int rc;
+
+ netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
+
+ rc = pci_enable_device(pci_dev);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to enable PCI device\n");
+ goto fail1;
+ }
+
+ pci_set_master(pci_dev);
+
+ /* Set the PCI DMA mask. Try all possibilities from our
+ * genuine mask down to 32 bits, because some architectures
+ * (e.g. x86_64 with iommu_sac_force set) will allow 40 bit
+ * masks event though they reject 46 bit masks.
+ */
+ while (dma_mask > 0x7fffffffUL) {
+ if (pci_dma_supported(pci_dev, dma_mask) &&
+ ((rc = pci_set_dma_mask(pci_dev, dma_mask)) == 0))
+ break;
+ dma_mask >>= 1;
+ }
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "could not find a suitable DMA mask\n");
+ goto fail2;
+ }
+ netif_dbg(efx, probe, efx->net_dev,
+ "using DMA mask %llx\n", (unsigned long long) dma_mask);
+ rc = pci_set_consistent_dma_mask(pci_dev, dma_mask);
+ if (rc) {
+ /* pci_set_consistent_dma_mask() is not *allowed* to
+ * fail with a mask that pci_set_dma_mask() accepted,
+ * but just in case...
+ */
+ netif_err(efx, probe, efx->net_dev,
+ "failed to set consistent DMA mask\n");
+ goto fail2;
+ }
+
+ efx->membase_phys = pci_resource_start(efx->pci_dev, EFX_MEM_BAR);
+ rc = pci_request_region(pci_dev, EFX_MEM_BAR, "sfc");
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "request for memory BAR failed\n");
+ rc = -EIO;
+ goto fail3;
+ }
+
+ /* bug22643: If SR-IOV is enabled then tx push over a write combined
+ * mapping is unsafe. We need to disable write combining in this case.
+ * MSI is unsupported when SR-IOV is enabled, and the firmware will
+ * have removed the MSI capability. So write combining is safe if
+ * there is an MSI capability.
+ */
+ use_wc = (!EFX_WORKAROUND_22643(efx) ||
+ pci_find_capability(pci_dev, PCI_CAP_ID_MSI));
+ if (use_wc)
+ efx->membase = ioremap_wc(efx->membase_phys,
+ efx->type->mem_map_size);
+ else
+ efx->membase = ioremap_nocache(efx->membase_phys,
+ efx->type->mem_map_size);
+ if (!efx->membase) {
+ netif_err(efx, probe, efx->net_dev,
+ "could not map memory BAR at %llx+%x\n",
+ (unsigned long long)efx->membase_phys,
+ efx->type->mem_map_size);
+ rc = -ENOMEM;
+ goto fail4;
+ }
+ netif_dbg(efx, probe, efx->net_dev,
+ "memory BAR at %llx+%x (virtual %p)\n",
+ (unsigned long long)efx->membase_phys,
+ efx->type->mem_map_size, efx->membase);
+
+ return 0;
+
+ fail4:
+ pci_release_region(efx->pci_dev, EFX_MEM_BAR);
+ fail3:
+ efx->membase_phys = 0;
+ fail2:
+ pci_disable_device(efx->pci_dev);
+ fail1:
+ return rc;
+}
+
+static void efx_fini_io(struct efx_nic *efx)
+{
+ netif_dbg(efx, drv, efx->net_dev, "shutting down I/O\n");
+
+ if (efx->membase) {
+ iounmap(efx->membase);
+ efx->membase = NULL;
+ }
+
+ if (efx->membase_phys) {
+ pci_release_region(efx->pci_dev, EFX_MEM_BAR);
+ efx->membase_phys = 0;
+ }
+
+ pci_disable_device(efx->pci_dev);
+}
+
+/* Get number of channels wanted. Each channel will have its own IRQ,
+ * 1 RX queue and/or 2 TX queues. */
+static int efx_wanted_channels(void)
+{
+ cpumask_var_t core_mask;
+ int count;
+ int cpu;
+
+ if (rss_cpus)
+ return rss_cpus;
+
+ if (unlikely(!zalloc_cpumask_var(&core_mask, GFP_KERNEL))) {
+ printk(KERN_WARNING
+ "sfc: RSS disabled due to allocation failure\n");
+ return 1;
+ }
+
+ count = 0;
+ for_each_online_cpu(cpu) {
+ if (!cpumask_test_cpu(cpu, core_mask)) {
+ ++count;
+ cpumask_or(core_mask, core_mask,
+ topology_core_cpumask(cpu));
+ }
+ }
+
+ free_cpumask_var(core_mask);
+ return count;
+}
+
+static int
+efx_init_rx_cpu_rmap(struct efx_nic *efx, struct msix_entry *xentries)
+{
+#ifdef CONFIG_RFS_ACCEL
+ int i, rc;
+
+ efx->net_dev->rx_cpu_rmap = alloc_irq_cpu_rmap(efx->n_rx_channels);
+ if (!efx->net_dev->rx_cpu_rmap)
+ return -ENOMEM;
+ for (i = 0; i < efx->n_rx_channels; i++) {
+ rc = irq_cpu_rmap_add(efx->net_dev->rx_cpu_rmap,
+ xentries[i].vector);
+ if (rc) {
+ free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
+ efx->net_dev->rx_cpu_rmap = NULL;
+ return rc;
+ }
+ }
+#endif
+ return 0;
+}
+
+/* Probe the number and type of interrupts we are able to obtain, and
+ * the resulting numbers of channels and RX queues.
+ */
+static int efx_probe_interrupts(struct efx_nic *efx)
+{
+ int max_channels =
+ min_t(int, efx->type->phys_addr_channels, EFX_MAX_CHANNELS);
+ int rc, i;
+
+ if (efx->interrupt_mode == EFX_INT_MODE_MSIX) {
+ struct msix_entry xentries[EFX_MAX_CHANNELS];
+ int n_channels;
+
+ n_channels = efx_wanted_channels();
+ if (separate_tx_channels)
+ n_channels *= 2;
+ n_channels = min(n_channels, max_channels);
+
+ for (i = 0; i < n_channels; i++)
+ xentries[i].entry = i;
+ rc = pci_enable_msix(efx->pci_dev, xentries, n_channels);
+ if (rc > 0) {
+ netif_err(efx, drv, efx->net_dev,
+ "WARNING: Insufficient MSI-X vectors"
+ " available (%d < %d).\n", rc, n_channels);
+ netif_err(efx, drv, efx->net_dev,
+ "WARNING: Performance may be reduced.\n");
+ EFX_BUG_ON_PARANOID(rc >= n_channels);
+ n_channels = rc;
+ rc = pci_enable_msix(efx->pci_dev, xentries,
+ n_channels);
+ }
+
+ if (rc == 0) {
+ efx->n_channels = n_channels;
+ if (separate_tx_channels) {
+ efx->n_tx_channels =
+ max(efx->n_channels / 2, 1U);
+ efx->n_rx_channels =
+ max(efx->n_channels -
+ efx->n_tx_channels, 1U);
+ } else {
+ efx->n_tx_channels = efx->n_channels;
+ efx->n_rx_channels = efx->n_channels;
+ }
+ rc = efx_init_rx_cpu_rmap(efx, xentries);
+ if (rc) {
+ pci_disable_msix(efx->pci_dev);
+ return rc;
+ }
+ for (i = 0; i < n_channels; i++)
+ efx_get_channel(efx, i)->irq =
+ xentries[i].vector;
+ } else {
+ /* Fall back to single channel MSI */
+ efx->interrupt_mode = EFX_INT_MODE_MSI;
+ netif_err(efx, drv, efx->net_dev,
+ "could not enable MSI-X\n");
+ }
+ }
+
+ /* Try single interrupt MSI */
+ if (efx->interrupt_mode == EFX_INT_MODE_MSI) {
+ efx->n_channels = 1;
+ efx->n_rx_channels = 1;
+ efx->n_tx_channels = 1;
+ rc = pci_enable_msi(efx->pci_dev);
+ if (rc == 0) {
+ efx_get_channel(efx, 0)->irq = efx->pci_dev->irq;
+ } else {
+ netif_err(efx, drv, efx->net_dev,
+ "could not enable MSI\n");
+ efx->interrupt_mode = EFX_INT_MODE_LEGACY;
+ }
+ }
+
+ /* Assume legacy interrupts */
+ if (efx->interrupt_mode == EFX_INT_MODE_LEGACY) {
+ efx->n_channels = 1 + (separate_tx_channels ? 1 : 0);
+ efx->n_rx_channels = 1;
+ efx->n_tx_channels = 1;
+ efx->legacy_irq = efx->pci_dev->irq;
+ }
+
+ return 0;
+}
+
+static void efx_remove_interrupts(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ /* Remove MSI/MSI-X interrupts */
+ efx_for_each_channel(channel, efx)
+ channel->irq = 0;
+ pci_disable_msi(efx->pci_dev);
+ pci_disable_msix(efx->pci_dev);
+
+ /* Remove legacy interrupt */
+ efx->legacy_irq = 0;
+}
+
+static void efx_set_channels(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ struct efx_tx_queue *tx_queue;
+
+ efx->tx_channel_offset =
+ separate_tx_channels ? efx->n_channels - efx->n_tx_channels : 0;
+
+ /* We need to adjust the TX queue numbers if we have separate
+ * RX-only and TX-only channels.
+ */
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ tx_queue->queue -= (efx->tx_channel_offset *
+ EFX_TXQ_TYPES);
+ }
+}
+
+static int efx_probe_nic(struct efx_nic *efx)
+{
+ size_t i;
+ int rc;
+
+ netif_dbg(efx, probe, efx->net_dev, "creating NIC\n");
+
+ /* Carry out hardware-type specific initialisation */
+ rc = efx->type->probe(efx);
+ if (rc)
+ return rc;
+
+ /* Determine the number of channels and queues by trying to hook
+ * in MSI-X interrupts. */
+ rc = efx_probe_interrupts(efx);
+ if (rc)
+ goto fail;
+
+ if (efx->n_channels > 1)
+ get_random_bytes(&efx->rx_hash_key, sizeof(efx->rx_hash_key));
+ for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+ efx->rx_indir_table[i] = i % efx->n_rx_channels;
+
+ efx_set_channels(efx);
+ netif_set_real_num_tx_queues(efx->net_dev, efx->n_tx_channels);
+ netif_set_real_num_rx_queues(efx->net_dev, efx->n_rx_channels);
+
+ /* Initialise the interrupt moderation settings */
+ efx_init_irq_moderation(efx, tx_irq_mod_usec, rx_irq_mod_usec, true);
+
+ return 0;
+
+fail:
+ efx->type->remove(efx);
+ return rc;
+}
+
+static void efx_remove_nic(struct efx_nic *efx)
+{
+ netif_dbg(efx, drv, efx->net_dev, "destroying NIC\n");
+
+ efx_remove_interrupts(efx);
+ efx->type->remove(efx);
+}
+
+/**************************************************************************
+ *
+ * NIC startup/shutdown
+ *
+ *************************************************************************/
+
+static int efx_probe_all(struct efx_nic *efx)
+{
+ int rc;
+
+ rc = efx_probe_nic(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev, "failed to create NIC\n");
+ goto fail1;
+ }
+
+ rc = efx_probe_port(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev, "failed to create port\n");
+ goto fail2;
+ }
+
+ efx->rxq_entries = efx->txq_entries = EFX_DEFAULT_DMAQ_SIZE;
+ rc = efx_probe_channels(efx);
+ if (rc)
+ goto fail3;
+
+ rc = efx_probe_filters(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to create filter tables\n");
+ goto fail4;
+ }
+
+ return 0;
+
+ fail4:
+ efx_remove_channels(efx);
+ fail3:
+ efx_remove_port(efx);
+ fail2:
+ efx_remove_nic(efx);
+ fail1:
+ return rc;
+}
+
+/* Called after previous invocation(s) of efx_stop_all, restarts the
+ * port, kernel transmit queue, NAPI processing and hardware interrupts,
+ * and ensures that the port is scheduled to be reconfigured.
+ * This function is safe to call multiple times when the NIC is in any
+ * state. */
+static void efx_start_all(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ /* Check that it is appropriate to restart the interface. All
+ * of these flags are safe to read under just the rtnl lock */
+ if (efx->port_enabled)
+ return;
+ if ((efx->state != STATE_RUNNING) && (efx->state != STATE_INIT))
+ return;
+ if (efx_dev_registered(efx) && !netif_running(efx->net_dev))
+ return;
+
+ /* Mark the port as enabled so port reconfigurations can start, then
+ * restart the transmit interface early so the watchdog timer stops */
+ efx_start_port(efx);
+
+ if (efx_dev_registered(efx) && netif_device_present(efx->net_dev))
+ netif_tx_wake_all_queues(efx->net_dev);
+
+ efx_for_each_channel(channel, efx)
+ efx_start_channel(channel);
+
+ if (efx->legacy_irq)
+ efx->legacy_irq_enabled = true;
+ efx_nic_enable_interrupts(efx);
+
+ /* Switch to event based MCDI completions after enabling interrupts.
+ * If a reset has been scheduled, then we need to stay in polled mode.
+ * Rather than serialising efx_mcdi_mode_event() [which sleeps] and
+ * reset_pending [modified from an atomic context], we instead guarantee
+ * that efx_mcdi_mode_poll() isn't reverted erroneously */
+ efx_mcdi_mode_event(efx);
+ if (efx->reset_pending)
+ efx_mcdi_mode_poll(efx);
+
+ /* Start the hardware monitor if there is one. Otherwise (we're link
+ * event driven), we have to poll the PHY because after an event queue
+ * flush, we could have a missed a link state change */
+ if (efx->type->monitor != NULL) {
+ queue_delayed_work(efx->workqueue, &efx->monitor_work,
+ efx_monitor_interval);
+ } else {
+ mutex_lock(&efx->mac_lock);
+ if (efx->phy_op->poll(efx))
+ efx_link_status_changed(efx);
+ mutex_unlock(&efx->mac_lock);
+ }
+
+ efx->type->start_stats(efx);
+}
+
+/* Flush all delayed work. Should only be called when no more delayed work
+ * will be scheduled. This doesn't flush pending online resets (efx_reset),
+ * since we're holding the rtnl_lock at this point. */
+static void efx_flush_all(struct efx_nic *efx)
+{
+ /* Make sure the hardware monitor is stopped */
+ cancel_delayed_work_sync(&efx->monitor_work);
+ /* Stop scheduled port reconfigurations */
+ cancel_work_sync(&efx->mac_work);
+}
+
+/* Quiesce hardware and software without bringing the link down.
+ * Safe to call multiple times, when the nic and interface is in any
+ * state. The caller is guaranteed to subsequently be in a position
+ * to modify any hardware and software state they see fit without
+ * taking locks. */
+static void efx_stop_all(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ /* port_enabled can be read safely under the rtnl lock */
+ if (!efx->port_enabled)
+ return;
+
+ efx->type->stop_stats(efx);
+
+ /* Switch to MCDI polling on Siena before disabling interrupts */
+ efx_mcdi_mode_poll(efx);
+
+ /* Disable interrupts and wait for ISR to complete */
+ efx_nic_disable_interrupts(efx);
+ if (efx->legacy_irq) {
+ synchronize_irq(efx->legacy_irq);
+ efx->legacy_irq_enabled = false;
+ }
+ efx_for_each_channel(channel, efx) {
+ if (channel->irq)
+ synchronize_irq(channel->irq);
+ }
+
+ /* Stop all NAPI processing and synchronous rx refills */
+ efx_for_each_channel(channel, efx)
+ efx_stop_channel(channel);
+
+ /* Stop all asynchronous port reconfigurations. Since all
+ * event processing has already been stopped, there is no
+ * window to loose phy events */
+ efx_stop_port(efx);
+
+ /* Flush efx_mac_work(), refill_workqueue, monitor_work */
+ efx_flush_all(efx);
+
+ /* Stop the kernel transmit interface late, so the watchdog
+ * timer isn't ticking over the flush */
+ if (efx_dev_registered(efx)) {
+ netif_tx_stop_all_queues(efx->net_dev);
+ netif_tx_lock_bh(efx->net_dev);
+ netif_tx_unlock_bh(efx->net_dev);
+ }
+}
+
+static void efx_remove_all(struct efx_nic *efx)
+{
+ efx_remove_filters(efx);
+ efx_remove_channels(efx);
+ efx_remove_port(efx);
+ efx_remove_nic(efx);
+}
+
+/**************************************************************************
+ *
+ * Interrupt moderation
+ *
+ **************************************************************************/
+
+static unsigned irq_mod_ticks(int usecs, int resolution)
+{
+ if (usecs <= 0)
+ return 0; /* cannot receive interrupts ahead of time :-) */
+ if (usecs < resolution)
+ return 1; /* never round down to 0 */
+ return usecs / resolution;
+}
+
+/* Set interrupt moderation parameters */
+void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs, int rx_usecs,
+ bool rx_adaptive)
+{
+ struct efx_channel *channel;
+ unsigned tx_ticks = irq_mod_ticks(tx_usecs, EFX_IRQ_MOD_RESOLUTION);
+ unsigned rx_ticks = irq_mod_ticks(rx_usecs, EFX_IRQ_MOD_RESOLUTION);
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ efx->irq_rx_adaptive = rx_adaptive;
+ efx->irq_rx_moderation = rx_ticks;
+ efx_for_each_channel(channel, efx) {
+ if (efx_channel_has_rx_queue(channel))
+ channel->irq_moderation = rx_ticks;
+ else if (efx_channel_has_tx_queues(channel))
+ channel->irq_moderation = tx_ticks;
+ }
+}
+
+/**************************************************************************
+ *
+ * Hardware monitor
+ *
+ **************************************************************************/
+
+/* Run periodically off the general workqueue */
+static void efx_monitor(struct work_struct *data)
+{
+ struct efx_nic *efx = container_of(data, struct efx_nic,
+ monitor_work.work);
+
+ netif_vdbg(efx, timer, efx->net_dev,
+ "hardware monitor executing on CPU %d\n",
+ raw_smp_processor_id());
+ BUG_ON(efx->type->monitor == NULL);
+
+ /* If the mac_lock is already held then it is likely a port
+ * reconfiguration is already in place, which will likely do
+ * most of the work of monitor() anyway. */
+ if (mutex_trylock(&efx->mac_lock)) {
+ if (efx->port_enabled)
+ efx->type->monitor(efx);
+ mutex_unlock(&efx->mac_lock);
+ }
+
+ queue_delayed_work(efx->workqueue, &efx->monitor_work,
+ efx_monitor_interval);
+}
+
+/**************************************************************************
+ *
+ * ioctls
+ *
+ *************************************************************************/
+
+/* Net device ioctl
+ * Context: process, rtnl_lock() held.
+ */
+static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ /* Convert phy_id from older PRTAD/DEVAD format */
+ if ((cmd == SIOCGMIIREG || cmd == SIOCSMIIREG) &&
+ (data->phy_id & 0xfc00) == 0x0400)
+ data->phy_id ^= MDIO_PHY_ID_C45 | 0x0400;
+
+ return mdio_mii_ioctl(&efx->mdio, data, cmd);
+}
+
+/**************************************************************************
+ *
+ * NAPI interface
+ *
+ **************************************************************************/
+
+static void efx_init_napi(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ efx_for_each_channel(channel, efx) {
+ channel->napi_dev = efx->net_dev;
+ netif_napi_add(channel->napi_dev, &channel->napi_str,
+ efx_poll, napi_weight);
+ }
+}
+
+static void efx_fini_napi_channel(struct efx_channel *channel)
+{
+ if (channel->napi_dev)
+ netif_napi_del(&channel->napi_str);
+ channel->napi_dev = NULL;
+}
+
+static void efx_fini_napi(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ efx_for_each_channel(channel, efx)
+ efx_fini_napi_channel(channel);
+}
+
+/**************************************************************************
+ *
+ * Kernel netpoll interface
+ *
+ *************************************************************************/
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+
+/* Although in the common case interrupts will be disabled, this is not
+ * guaranteed. However, all our work happens inside the NAPI callback,
+ * so no locking is required.
+ */
+static void efx_netpoll(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_channel *channel;
+
+ efx_for_each_channel(channel, efx)
+ efx_schedule_channel(channel);
+}
+
+#endif
+
+/**************************************************************************
+ *
+ * Kernel net device interface
+ *
+ *************************************************************************/
+
+/* Context: process, rtnl_lock() held. */
+static int efx_net_open(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ netif_dbg(efx, ifup, efx->net_dev, "opening device on CPU %d\n",
+ raw_smp_processor_id());
+
+ if (efx->state == STATE_DISABLED)
+ return -EIO;
+ if (efx->phy_mode & PHY_MODE_SPECIAL)
+ return -EBUSY;
+ if (efx_mcdi_poll_reboot(efx) && efx_reset(efx, RESET_TYPE_ALL))
+ return -EIO;
+
+ /* Notify the kernel of the link state polled during driver load,
+ * before the monitor starts running */
+ efx_link_status_changed(efx);
+
+ efx_start_all(efx);
+ return 0;
+}
+
+/* Context: process, rtnl_lock() held.
+ * Note that the kernel will ignore our return code; this method
+ * should really be a void.
+ */
+static int efx_net_stop(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ netif_dbg(efx, ifdown, efx->net_dev, "closing on CPU %d\n",
+ raw_smp_processor_id());
+
+ if (efx->state != STATE_DISABLED) {
+ /* Stop the device and flush all the channels */
+ efx_stop_all(efx);
+ efx_fini_channels(efx);
+ efx_init_channels(efx);
+ }
+
+ return 0;
+}
+
+/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+static struct rtnl_link_stats64 *efx_net_stats(struct net_device *net_dev, struct rtnl_link_stats64 *stats)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_mac_stats *mac_stats = &efx->mac_stats;
+
+ spin_lock_bh(&efx->stats_lock);
+ efx->type->update_stats(efx);
+ spin_unlock_bh(&efx->stats_lock);
+
+ stats->rx_packets = mac_stats->rx_packets;
+ stats->tx_packets = mac_stats->tx_packets;
+ stats->rx_bytes = mac_stats->rx_bytes;
+ stats->tx_bytes = mac_stats->tx_bytes;
+ stats->rx_dropped = efx->n_rx_nodesc_drop_cnt;
+ stats->multicast = mac_stats->rx_multicast;
+ stats->collisions = mac_stats->tx_collision;
+ stats->rx_length_errors = (mac_stats->rx_gtjumbo +
+ mac_stats->rx_length_error);
+ stats->rx_crc_errors = mac_stats->rx_bad;
+ stats->rx_frame_errors = mac_stats->rx_align_error;
+ stats->rx_fifo_errors = mac_stats->rx_overflow;
+ stats->rx_missed_errors = mac_stats->rx_missed;
+ stats->tx_window_errors = mac_stats->tx_late_collision;
+
+ stats->rx_errors = (stats->rx_length_errors +
+ stats->rx_crc_errors +
+ stats->rx_frame_errors +
+ mac_stats->rx_symbol_error);
+ stats->tx_errors = (stats->tx_window_errors +
+ mac_stats->tx_bad);
+
+ return stats;
+}
+
+/* Context: netif_tx_lock held, BHs disabled. */
+static void efx_watchdog(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ netif_err(efx, tx_err, efx->net_dev,
+ "TX stuck with port_enabled=%d: resetting channels\n",
+ efx->port_enabled);
+
+ efx_schedule_reset(efx, RESET_TYPE_TX_WATCHDOG);
+}
+
+
+/* Context: process, rtnl_lock() held. */
+static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc = 0;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ if (new_mtu > EFX_MAX_MTU)
+ return -EINVAL;
+
+ efx_stop_all(efx);
+
+ netif_dbg(efx, drv, efx->net_dev, "changing MTU to %d\n", new_mtu);
+
+ efx_fini_channels(efx);
+
+ mutex_lock(&efx->mac_lock);
+ /* Reconfigure the MAC before enabling the dma queues so that
+ * the RX buffers don't overflow */
+ net_dev->mtu = new_mtu;
+ efx->mac_op->reconfigure(efx);
+ mutex_unlock(&efx->mac_lock);
+
+ efx_init_channels(efx);
+
+ efx_start_all(efx);
+ return rc;
+}
+
+static int efx_set_mac_address(struct net_device *net_dev, void *data)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct sockaddr *addr = data;
+ char *new_addr = addr->sa_data;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ if (!is_valid_ether_addr(new_addr)) {
+ netif_err(efx, drv, efx->net_dev,
+ "invalid ethernet MAC address requested: %pM\n",
+ new_addr);
+ return -EINVAL;
+ }
+
+ memcpy(net_dev->dev_addr, new_addr, net_dev->addr_len);
+
+ /* Reconfigure the MAC */
+ mutex_lock(&efx->mac_lock);
+ efx->mac_op->reconfigure(efx);
+ mutex_unlock(&efx->mac_lock);
+
+ return 0;
+}
+
+/* Context: netif_addr_lock held, BHs disabled. */
+static void efx_set_multicast_list(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct netdev_hw_addr *ha;
+ union efx_multicast_hash *mc_hash = &efx->multicast_hash;
+ u32 crc;
+ int bit;
+
+ efx->promiscuous = !!(net_dev->flags & IFF_PROMISC);
+
+ /* Build multicast hash table */
+ if (efx->promiscuous || (net_dev->flags & IFF_ALLMULTI)) {
+ memset(mc_hash, 0xff, sizeof(*mc_hash));
+ } else {
+ memset(mc_hash, 0x00, sizeof(*mc_hash));
+ netdev_for_each_mc_addr(ha, net_dev) {
+ crc = ether_crc_le(ETH_ALEN, ha->addr);
+ bit = crc & (EFX_MCAST_HASH_ENTRIES - 1);
+ set_bit_le(bit, mc_hash->byte);
+ }
+
+ /* Broadcast packets go through the multicast hash filter.
+ * ether_crc_le() of the broadcast address is 0xbe2612ff
+ * so we always add bit 0xff to the mask.
+ */
+ set_bit_le(0xff, mc_hash->byte);
+ }
+
+ if (efx->port_enabled)
+ queue_work(efx->workqueue, &efx->mac_work);
+ /* Otherwise efx_start_port() will do this */
+}
+
+static int efx_set_features(struct net_device *net_dev, u32 data)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ /* If disabling RX n-tuple filtering, clear existing filters */
+ if (net_dev->features & ~data & NETIF_F_NTUPLE)
+ efx_filter_clear_rx(efx, EFX_FILTER_PRI_MANUAL);
+
+ return 0;
+}
+
+static const struct net_device_ops efx_netdev_ops = {
+ .ndo_open = efx_net_open,
+ .ndo_stop = efx_net_stop,
+ .ndo_get_stats64 = efx_net_stats,
+ .ndo_tx_timeout = efx_watchdog,
+ .ndo_start_xmit = efx_hard_start_xmit,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = efx_ioctl,
+ .ndo_change_mtu = efx_change_mtu,
+ .ndo_set_mac_address = efx_set_mac_address,
+ .ndo_set_multicast_list = efx_set_multicast_list,
+ .ndo_set_features = efx_set_features,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = efx_netpoll,
+#endif
+ .ndo_setup_tc = efx_setup_tc,
+#ifdef CONFIG_RFS_ACCEL
+ .ndo_rx_flow_steer = efx_filter_rfs,
+#endif
+};
+
+static void efx_update_name(struct efx_nic *efx)
+{
+ strcpy(efx->name, efx->net_dev->name);
+ efx_mtd_rename(efx);
+ efx_set_channel_names(efx);
+}
+
+static int efx_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *net_dev = ptr;
+
+ if (net_dev->netdev_ops == &efx_netdev_ops &&
+ event == NETDEV_CHANGENAME)
+ efx_update_name(netdev_priv(net_dev));
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block efx_netdev_notifier = {
+ .notifier_call = efx_netdev_event,
+};
+
+static ssize_t
+show_phy_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ return sprintf(buf, "%d\n", efx->phy_type);
+}
+static DEVICE_ATTR(phy_type, 0644, show_phy_type, NULL);
+
+static int efx_register_netdev(struct efx_nic *efx)
+{
+ struct net_device *net_dev = efx->net_dev;
+ struct efx_channel *channel;
+ int rc;
+
+ net_dev->watchdog_timeo = 5 * HZ;
+ net_dev->irq = efx->pci_dev->irq;
+ net_dev->netdev_ops = &efx_netdev_ops;
+ SET_ETHTOOL_OPS(net_dev, &efx_ethtool_ops);
+
+ /* Clear MAC statistics */
+ efx->mac_op->update_stats(efx);
+ memset(&efx->mac_stats, 0, sizeof(efx->mac_stats));
+
+ rtnl_lock();
+
+ rc = dev_alloc_name(net_dev, net_dev->name);
+ if (rc < 0)
+ goto fail_locked;
+ efx_update_name(efx);
+
+ rc = register_netdevice(net_dev);
+ if (rc)
+ goto fail_locked;
+
+ efx_for_each_channel(channel, efx) {
+ struct efx_tx_queue *tx_queue;
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_init_tx_queue_core_txq(tx_queue);
+ }
+
+ /* Always start with carrier off; PHY events will detect the link */
+ netif_carrier_off(efx->net_dev);
+
+ rtnl_unlock();
+
+ rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_type);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed to init net dev attributes\n");
+ goto fail_registered;
+ }
+
+ return 0;
+
+fail_locked:
+ rtnl_unlock();
+ netif_err(efx, drv, efx->net_dev, "could not register net dev\n");
+ return rc;
+
+fail_registered:
+ unregister_netdev(net_dev);
+ return rc;
+}
+
+static void efx_unregister_netdev(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ struct efx_tx_queue *tx_queue;
+
+ if (!efx->net_dev)
+ return;
+
+ BUG_ON(netdev_priv(efx->net_dev) != efx);
+
+ /* Free up any skbs still remaining. This has to happen before
+ * we try to unregister the netdev as running their destructors
+ * may be needed to get the device ref. count to 0. */
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_release_tx_buffers(tx_queue);
+ }
+
+ if (efx_dev_registered(efx)) {
+ strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name));
+ device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_type);
+ unregister_netdev(efx->net_dev);
+ }
+}
+
+/**************************************************************************
+ *
+ * Device reset and suspend
+ *
+ **************************************************************************/
+
+/* Tears down the entire software state and most of the hardware state
+ * before reset. */
+void efx_reset_down(struct efx_nic *efx, enum reset_type method)
+{
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ efx_stop_all(efx);
+ mutex_lock(&efx->mac_lock);
+
+ efx_fini_channels(efx);
+ if (efx->port_initialized && method != RESET_TYPE_INVISIBLE)
+ efx->phy_op->fini(efx);
+ efx->type->fini(efx);
+}
+
+/* This function will always ensure that the locks acquired in
+ * efx_reset_down() are released. A failure return code indicates
+ * that we were unable to reinitialise the hardware, and the
+ * driver should be disabled. If ok is false, then the rx and tx
+ * engines are not restarted, pending a RESET_DISABLE. */
+int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok)
+{
+ int rc;
+
+ EFX_ASSERT_RESET_SERIALISED(efx);
+
+ rc = efx->type->init(efx);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev, "failed to initialise NIC\n");
+ goto fail;
+ }
+
+ if (!ok)
+ goto fail;
+
+ if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) {
+ rc = efx->phy_op->init(efx);
+ if (rc)
+ goto fail;
+ if (efx->phy_op->reconfigure(efx))
+ netif_err(efx, drv, efx->net_dev,
+ "could not restore PHY settings\n");
+ }
+
+ efx->mac_op->reconfigure(efx);
+
+ efx_init_channels(efx);
+ efx_restore_filters(efx);
+
+ mutex_unlock(&efx->mac_lock);
+
+ efx_start_all(efx);
+
+ return 0;
+
+fail:
+ efx->port_initialized = false;
+
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
+
+/* Reset the NIC using the specified method. Note that the reset may
+ * fail, in which case the card will be left in an unusable state.
+ *
+ * Caller must hold the rtnl_lock.
+ */
+int efx_reset(struct efx_nic *efx, enum reset_type method)
+{
+ int rc, rc2;
+ bool disabled;
+
+ netif_info(efx, drv, efx->net_dev, "resetting (%s)\n",
+ RESET_TYPE(method));
+
+ netif_device_detach(efx->net_dev);
+ efx_reset_down(efx, method);
+
+ rc = efx->type->reset(efx, method);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev, "failed to reset hardware\n");
+ goto out;
+ }
+
+ /* Clear flags for the scopes we covered. We assume the NIC and
+ * driver are now quiescent so that there is no race here.
+ */
+ efx->reset_pending &= -(1 << (method + 1));
+
+ /* Reinitialise bus-mastering, which may have been turned off before
+ * the reset was scheduled. This is still appropriate, even in the
+ * RESET_TYPE_DISABLE since this driver generally assumes the hardware
+ * can respond to requests. */
+ pci_set_master(efx->pci_dev);
+
+out:
+ /* Leave device stopped if necessary */
+ disabled = rc || method == RESET_TYPE_DISABLE;
+ rc2 = efx_reset_up(efx, method, !disabled);
+ if (rc2) {
+ disabled = true;
+ if (!rc)
+ rc = rc2;
+ }
+
+ if (disabled) {
+ dev_close(efx->net_dev);
+ netif_err(efx, drv, efx->net_dev, "has been disabled\n");
+ efx->state = STATE_DISABLED;
+ } else {
+ netif_dbg(efx, drv, efx->net_dev, "reset complete\n");
+ netif_device_attach(efx->net_dev);
+ }
+ return rc;
+}
+
+/* The worker thread exists so that code that cannot sleep can
+ * schedule a reset for later.
+ */
+static void efx_reset_work(struct work_struct *data)
+{
+ struct efx_nic *efx = container_of(data, struct efx_nic, reset_work);
+ unsigned long pending = ACCESS_ONCE(efx->reset_pending);
+
+ if (!pending)
+ return;
+
+ /* If we're not RUNNING then don't reset. Leave the reset_pending
+ * flags set so that efx_pci_probe_main will be retried */
+ if (efx->state != STATE_RUNNING) {
+ netif_info(efx, drv, efx->net_dev,
+ "scheduled reset quenched. NIC not RUNNING\n");
+ return;
+ }
+
+ rtnl_lock();
+ (void)efx_reset(efx, fls(pending) - 1);
+ rtnl_unlock();
+}
+
+void efx_schedule_reset(struct efx_nic *efx, enum reset_type type)
+{
+ enum reset_type method;
+
+ switch (type) {
+ case RESET_TYPE_INVISIBLE:
+ case RESET_TYPE_ALL:
+ case RESET_TYPE_WORLD:
+ case RESET_TYPE_DISABLE:
+ method = type;
+ netif_dbg(efx, drv, efx->net_dev, "scheduling %s reset\n",
+ RESET_TYPE(method));
+ break;
+ default:
+ method = efx->type->map_reset_reason(type);
+ netif_dbg(efx, drv, efx->net_dev,
+ "scheduling %s reset for %s\n",
+ RESET_TYPE(method), RESET_TYPE(type));
+ break;
+ }
+
+ set_bit(method, &efx->reset_pending);
+
+ /* efx_process_channel() will no longer read events once a
+ * reset is scheduled. So switch back to poll'd MCDI completions. */
+ efx_mcdi_mode_poll(efx);
+
+ queue_work(reset_workqueue, &efx->reset_work);
+}
+
+/**************************************************************************
+ *
+ * List of NICs we support
+ *
+ **************************************************************************/
+
+/* PCI device ID table */
+static DEFINE_PCI_DEVICE_TABLE(efx_pci_table) = {
+ {PCI_DEVICE(EFX_VENDID_SFC, FALCON_A_P_DEVID),
+ .driver_data = (unsigned long) &falcon_a1_nic_type},
+ {PCI_DEVICE(EFX_VENDID_SFC, FALCON_B_P_DEVID),
+ .driver_data = (unsigned long) &falcon_b0_nic_type},
+ {PCI_DEVICE(EFX_VENDID_SFC, BETHPAGE_A_P_DEVID),
+ .driver_data = (unsigned long) &siena_a0_nic_type},
+ {PCI_DEVICE(EFX_VENDID_SFC, SIENA_A_P_DEVID),
+ .driver_data = (unsigned long) &siena_a0_nic_type},
+ {0} /* end of list */
+};
+
+/**************************************************************************
+ *
+ * Dummy PHY/MAC operations
+ *
+ * Can be used for some unimplemented operations
+ * Needed so all function pointers are valid and do not have to be tested
+ * before use
+ *
+ **************************************************************************/
+int efx_port_dummy_op_int(struct efx_nic *efx)
+{
+ return 0;
+}
+void efx_port_dummy_op_void(struct efx_nic *efx) {}
+
+static bool efx_port_dummy_op_poll(struct efx_nic *efx)
+{
+ return false;
+}
+
+static const struct efx_phy_operations efx_dummy_phy_operations = {
+ .init = efx_port_dummy_op_int,
+ .reconfigure = efx_port_dummy_op_int,
+ .poll = efx_port_dummy_op_poll,
+ .fini = efx_port_dummy_op_void,
+};
+
+/**************************************************************************
+ *
+ * Data housekeeping
+ *
+ **************************************************************************/
+
+/* This zeroes out and then fills in the invariants in a struct
+ * efx_nic (including all sub-structures).
+ */
+static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type,
+ struct pci_dev *pci_dev, struct net_device *net_dev)
+{
+ int i;
+
+ /* Initialise common structures */
+ memset(efx, 0, sizeof(*efx));
+ spin_lock_init(&efx->biu_lock);
+#ifdef CONFIG_SFC_MTD
+ INIT_LIST_HEAD(&efx->mtd_list);
+#endif
+ INIT_WORK(&efx->reset_work, efx_reset_work);
+ INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor);
+ efx->pci_dev = pci_dev;
+ efx->msg_enable = debug;
+ efx->state = STATE_INIT;
+ strlcpy(efx->name, pci_name(pci_dev), sizeof(efx->name));
+
+ efx->net_dev = net_dev;
+ spin_lock_init(&efx->stats_lock);
+ mutex_init(&efx->mac_lock);
+ efx->mac_op = type->default_mac_ops;
+ efx->phy_op = &efx_dummy_phy_operations;
+ efx->mdio.dev = net_dev;
+ INIT_WORK(&efx->mac_work, efx_mac_work);
+
+ for (i = 0; i < EFX_MAX_CHANNELS; i++) {
+ efx->channel[i] = efx_alloc_channel(efx, i, NULL);
+ if (!efx->channel[i])
+ goto fail;
+ }
+
+ efx->type = type;
+
+ EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS);
+
+ /* Higher numbered interrupt modes are less capable! */
+ efx->interrupt_mode = max(efx->type->max_interrupt_mode,
+ interrupt_mode);
+
+ /* Would be good to use the net_dev name, but we're too early */
+ snprintf(efx->workqueue_name, sizeof(efx->workqueue_name), "sfc%s",
+ pci_name(pci_dev));
+ efx->workqueue = create_singlethread_workqueue(efx->workqueue_name);
+ if (!efx->workqueue)
+ goto fail;
+
+ return 0;
+
+fail:
+ efx_fini_struct(efx);
+ return -ENOMEM;
+}
+
+static void efx_fini_struct(struct efx_nic *efx)
+{
+ int i;
+
+ for (i = 0; i < EFX_MAX_CHANNELS; i++)
+ kfree(efx->channel[i]);
+
+ if (efx->workqueue) {
+ destroy_workqueue(efx->workqueue);
+ efx->workqueue = NULL;
+ }
+}
+
+/**************************************************************************
+ *
+ * PCI interface
+ *
+ **************************************************************************/
+
+/* Main body of final NIC shutdown code
+ * This is called only at module unload (or hotplug removal).
+ */
+static void efx_pci_remove_main(struct efx_nic *efx)
+{
+#ifdef CONFIG_RFS_ACCEL
+ free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
+ efx->net_dev->rx_cpu_rmap = NULL;
+#endif
+ efx_nic_fini_interrupt(efx);
+ efx_fini_channels(efx);
+ efx_fini_port(efx);
+ efx->type->fini(efx);
+ efx_fini_napi(efx);
+ efx_remove_all(efx);
+}
+
+/* Final NIC shutdown
+ * This is called only at module unload (or hotplug removal).
+ */
+static void efx_pci_remove(struct pci_dev *pci_dev)
+{
+ struct efx_nic *efx;
+
+ efx = pci_get_drvdata(pci_dev);
+ if (!efx)
+ return;
+
+ /* Mark the NIC as fini, then stop the interface */
+ rtnl_lock();
+ efx->state = STATE_FINI;
+ dev_close(efx->net_dev);
+
+ /* Allow any queued efx_resets() to complete */
+ rtnl_unlock();
+
+ efx_unregister_netdev(efx);
+
+ efx_mtd_remove(efx);
+
+ /* Wait for any scheduled resets to complete. No more will be
+ * scheduled from this point because efx_stop_all() has been
+ * called, we are no longer registered with driverlink, and
+ * the net_device's have been removed. */
+ cancel_work_sync(&efx->reset_work);
+
+ efx_pci_remove_main(efx);
+
+ efx_fini_io(efx);
+ netif_dbg(efx, drv, efx->net_dev, "shutdown successful\n");
+
+ pci_set_drvdata(pci_dev, NULL);
+ efx_fini_struct(efx);
+ free_netdev(efx->net_dev);
+};
+
+/* Main body of NIC initialisation
+ * This is called at module load (or hotplug insertion, theoretically).
+ */
+static int efx_pci_probe_main(struct efx_nic *efx)
+{
+ int rc;
+
+ /* Do start-of-day initialisation */
+ rc = efx_probe_all(efx);
+ if (rc)
+ goto fail1;
+
+ efx_init_napi(efx);
+
+ rc = efx->type->init(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to initialise NIC\n");
+ goto fail3;
+ }
+
+ rc = efx_init_port(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to initialise port\n");
+ goto fail4;
+ }
+
+ efx_init_channels(efx);
+
+ rc = efx_nic_init_interrupt(efx);
+ if (rc)
+ goto fail5;
+
+ return 0;
+
+ fail5:
+ efx_fini_channels(efx);
+ efx_fini_port(efx);
+ fail4:
+ efx->type->fini(efx);
+ fail3:
+ efx_fini_napi(efx);
+ efx_remove_all(efx);
+ fail1:
+ return rc;
+}
+
+/* NIC initialisation
+ *
+ * This is called at module load (or hotplug insertion,
+ * theoretically). It sets up PCI mappings, tests and resets the NIC,
+ * sets up and registers the network devices with the kernel and hooks
+ * the interrupt service routine. It does not prepare the device for
+ * transmission; this is left to the first time one of the network
+ * interfaces is brought up (i.e. efx_net_open).
+ */
+static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
+ const struct pci_device_id *entry)
+{
+ const struct efx_nic_type *type = (const struct efx_nic_type *) entry->driver_data;
+ struct net_device *net_dev;
+ struct efx_nic *efx;
+ int i, rc;
+
+ /* Allocate and initialise a struct net_device and struct efx_nic */
+ net_dev = alloc_etherdev_mqs(sizeof(*efx), EFX_MAX_CORE_TX_QUEUES,
+ EFX_MAX_RX_QUEUES);
+ if (!net_dev)
+ return -ENOMEM;
+ net_dev->features |= (type->offload_features | NETIF_F_SG |
+ NETIF_F_HIGHDMA | NETIF_F_TSO |
+ NETIF_F_RXCSUM);
+ if (type->offload_features & NETIF_F_V6_CSUM)
+ net_dev->features |= NETIF_F_TSO6;
+ /* Mask for features that also apply to VLAN devices */
+ net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG |
+ NETIF_F_HIGHDMA | NETIF_F_ALL_TSO |
+ NETIF_F_RXCSUM);
+ /* All offloads can be toggled */
+ net_dev->hw_features = net_dev->features & ~NETIF_F_HIGHDMA;
+ efx = netdev_priv(net_dev);
+ pci_set_drvdata(pci_dev, efx);
+ SET_NETDEV_DEV(net_dev, &pci_dev->dev);
+ rc = efx_init_struct(efx, type, pci_dev, net_dev);
+ if (rc)
+ goto fail1;
+
+ netif_info(efx, probe, efx->net_dev,
+ "Solarflare NIC detected\n");
+
+ /* Set up basic I/O (BAR mappings etc) */
+ rc = efx_init_io(efx);
+ if (rc)
+ goto fail2;
+
+ /* No serialisation is required with the reset path because
+ * we're in STATE_INIT. */
+ for (i = 0; i < 5; i++) {
+ rc = efx_pci_probe_main(efx);
+
+ /* Serialise against efx_reset(). No more resets will be
+ * scheduled since efx_stop_all() has been called, and we
+ * have not and never have been registered with either
+ * the rtnetlink or driverlink layers. */
+ cancel_work_sync(&efx->reset_work);
+
+ if (rc == 0) {
+ if (efx->reset_pending) {
+ /* If there was a scheduled reset during
+ * probe, the NIC is probably hosed anyway */
+ efx_pci_remove_main(efx);
+ rc = -EIO;
+ } else {
+ break;
+ }
+ }
+
+ /* Retry if a recoverably reset event has been scheduled */
+ if (efx->reset_pending &
+ ~(1 << RESET_TYPE_INVISIBLE | 1 << RESET_TYPE_ALL) ||
+ !efx->reset_pending)
+ goto fail3;
+
+ efx->reset_pending = 0;
+ }
+
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev, "Could not reset NIC\n");
+ goto fail4;
+ }
+
+ /* Switch to the running state before we expose the device to the OS,
+ * so that dev_open()|efx_start_all() will actually start the device */
+ efx->state = STATE_RUNNING;
+
+ rc = efx_register_netdev(efx);
+ if (rc)
+ goto fail5;
+
+ netif_dbg(efx, probe, efx->net_dev, "initialisation successful\n");
+
+ rtnl_lock();
+ efx_mtd_probe(efx); /* allowed to fail */
+ rtnl_unlock();
+ return 0;
+
+ fail5:
+ efx_pci_remove_main(efx);
+ fail4:
+ fail3:
+ efx_fini_io(efx);
+ fail2:
+ efx_fini_struct(efx);
+ fail1:
+ WARN_ON(rc > 0);
+ netif_dbg(efx, drv, efx->net_dev, "initialisation failed. rc=%d\n", rc);
+ free_netdev(net_dev);
+ return rc;
+}
+
+static int efx_pm_freeze(struct device *dev)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+
+ efx->state = STATE_FINI;
+
+ netif_device_detach(efx->net_dev);
+
+ efx_stop_all(efx);
+ efx_fini_channels(efx);
+
+ return 0;
+}
+
+static int efx_pm_thaw(struct device *dev)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+
+ efx->state = STATE_INIT;
+
+ efx_init_channels(efx);
+
+ mutex_lock(&efx->mac_lock);
+ efx->phy_op->reconfigure(efx);
+ mutex_unlock(&efx->mac_lock);
+
+ efx_start_all(efx);
+
+ netif_device_attach(efx->net_dev);
+
+ efx->state = STATE_RUNNING;
+
+ efx->type->resume_wol(efx);
+
+ /* Reschedule any quenched resets scheduled during efx_pm_freeze() */
+ queue_work(reset_workqueue, &efx->reset_work);
+
+ return 0;
+}
+
+static int efx_pm_poweroff(struct device *dev)
+{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
+ struct efx_nic *efx = pci_get_drvdata(pci_dev);
+
+ efx->type->fini(efx);
+
+ efx->reset_pending = 0;
+
+ pci_save_state(pci_dev);
+ return pci_set_power_state(pci_dev, PCI_D3hot);
+}
+
+/* Used for both resume and restore */
+static int efx_pm_resume(struct device *dev)
+{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
+ struct efx_nic *efx = pci_get_drvdata(pci_dev);
+ int rc;
+
+ rc = pci_set_power_state(pci_dev, PCI_D0);
+ if (rc)
+ return rc;
+ pci_restore_state(pci_dev);
+ rc = pci_enable_device(pci_dev);
+ if (rc)
+ return rc;
+ pci_set_master(efx->pci_dev);
+ rc = efx->type->reset(efx, RESET_TYPE_ALL);
+ if (rc)
+ return rc;
+ rc = efx->type->init(efx);
+ if (rc)
+ return rc;
+ efx_pm_thaw(dev);
+ return 0;
+}
+
+static int efx_pm_suspend(struct device *dev)
+{
+ int rc;
+
+ efx_pm_freeze(dev);
+ rc = efx_pm_poweroff(dev);
+ if (rc)
+ efx_pm_resume(dev);
+ return rc;
+}
+
+static struct dev_pm_ops efx_pm_ops = {
+ .suspend = efx_pm_suspend,
+ .resume = efx_pm_resume,
+ .freeze = efx_pm_freeze,
+ .thaw = efx_pm_thaw,
+ .poweroff = efx_pm_poweroff,
+ .restore = efx_pm_resume,
+};
+
+static struct pci_driver efx_pci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = efx_pci_table,
+ .probe = efx_pci_probe,
+ .remove = efx_pci_remove,
+ .driver.pm = &efx_pm_ops,
+};
+
+/**************************************************************************
+ *
+ * Kernel module interface
+ *
+ *************************************************************************/
+
+module_param(interrupt_mode, uint, 0444);
+MODULE_PARM_DESC(interrupt_mode,
+ "Interrupt mode (0=>MSIX 1=>MSI 2=>legacy)");
+
+static int __init efx_init_module(void)
+{
+ int rc;
+
+ printk(KERN_INFO "Solarflare NET driver v" EFX_DRIVER_VERSION "\n");
+
+ rc = register_netdevice_notifier(&efx_netdev_notifier);
+ if (rc)
+ goto err_notifier;
+
+ reset_workqueue = create_singlethread_workqueue("sfc_reset");
+ if (!reset_workqueue) {
+ rc = -ENOMEM;
+ goto err_reset;
+ }
+
+ rc = pci_register_driver(&efx_pci_driver);
+ if (rc < 0)
+ goto err_pci;
+
+ return 0;
+
+ err_pci:
+ destroy_workqueue(reset_workqueue);
+ err_reset:
+ unregister_netdevice_notifier(&efx_netdev_notifier);
+ err_notifier:
+ return rc;
+}
+
+static void __exit efx_exit_module(void)
+{
+ printk(KERN_INFO "Solarflare NET driver unloading\n");
+
+ pci_unregister_driver(&efx_pci_driver);
+ destroy_workqueue(reset_workqueue);
+ unregister_netdevice_notifier(&efx_netdev_notifier);
+
+}
+
+module_init(efx_init_module);
+module_exit(efx_exit_module);
+
+MODULE_AUTHOR("Solarflare Communications and "
+ "Michael Brown <mbrown@fensystems.co.uk>");
+MODULE_DESCRIPTION("Solarflare Communications network driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, efx_pci_table);
diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
new file mode 100644
index 000000000000..b0d1209ea18d
--- /dev/null
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -0,0 +1,147 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_EFX_H
+#define EFX_EFX_H
+
+#include "net_driver.h"
+#include "filter.h"
+
+/* PCI IDs */
+#define EFX_VENDID_SFC 0x1924
+#define FALCON_A_P_DEVID 0x0703
+#define FALCON_A_S_DEVID 0x6703
+#define FALCON_B_P_DEVID 0x0710
+#define BETHPAGE_A_P_DEVID 0x0803
+#define SIENA_A_P_DEVID 0x0813
+
+/* Solarstorm controllers use BAR 0 for I/O space and BAR 2(&3) for memory */
+#define EFX_MEM_BAR 2
+
+/* TX */
+extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
+extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
+extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
+extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
+extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
+extern void efx_release_tx_buffers(struct efx_tx_queue *tx_queue);
+extern netdev_tx_t
+efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
+extern netdev_tx_t
+efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
+extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
+extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
+
+/* RX */
+extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
+extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
+extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
+extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
+extern void efx_rx_strategy(struct efx_channel *channel);
+extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
+extern void efx_rx_slow_fill(unsigned long context);
+extern void __efx_rx_packet(struct efx_channel *channel,
+ struct efx_rx_buffer *rx_buf, bool checksummed);
+extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
+ unsigned int len, bool checksummed, bool discard);
+extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
+
+#define EFX_MAX_DMAQ_SIZE 4096UL
+#define EFX_DEFAULT_DMAQ_SIZE 1024UL
+#define EFX_MIN_DMAQ_SIZE 512UL
+
+#define EFX_MAX_EVQ_SIZE 16384UL
+#define EFX_MIN_EVQ_SIZE 512UL
+
+/* The smallest [rt]xq_entries that the driver supports. Callers of
+ * efx_wake_queue() assume that they can subsequently send at least one
+ * skb. Falcon/A1 may require up to three descriptors per skb_frag. */
+#define EFX_MIN_RING_SIZE (roundup_pow_of_two(2 * 3 * MAX_SKB_FRAGS))
+
+/* Filters */
+extern int efx_probe_filters(struct efx_nic *efx);
+extern void efx_restore_filters(struct efx_nic *efx);
+extern void efx_remove_filters(struct efx_nic *efx);
+extern int efx_filter_insert_filter(struct efx_nic *efx,
+ struct efx_filter_spec *spec,
+ bool replace);
+extern int efx_filter_remove_filter(struct efx_nic *efx,
+ struct efx_filter_spec *spec);
+extern void efx_filter_clear_rx(struct efx_nic *efx,
+ enum efx_filter_priority priority);
+#ifdef CONFIG_RFS_ACCEL
+extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
+ u16 rxq_index, u32 flow_id);
+extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
+static inline void efx_filter_rfs_expire(struct efx_channel *channel)
+{
+ if (channel->rfs_filters_added >= 60 &&
+ __efx_filter_rfs_expire(channel->efx, 100))
+ channel->rfs_filters_added -= 60;
+}
+#define efx_filter_rfs_enabled() 1
+#else
+static inline void efx_filter_rfs_expire(struct efx_channel *channel) {}
+#define efx_filter_rfs_enabled() 0
+#endif
+
+/* Channels */
+extern void efx_process_channel_now(struct efx_channel *channel);
+extern int
+efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
+
+/* Ports */
+extern int efx_reconfigure_port(struct efx_nic *efx);
+extern int __efx_reconfigure_port(struct efx_nic *efx);
+
+/* Ethtool support */
+extern const struct ethtool_ops efx_ethtool_ops;
+
+/* Reset handling */
+extern int efx_reset(struct efx_nic *efx, enum reset_type method);
+extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
+extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
+
+/* Global */
+extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
+extern void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs,
+ int rx_usecs, bool rx_adaptive);
+
+/* Dummy PHY ops for PHY drivers */
+extern int efx_port_dummy_op_int(struct efx_nic *efx);
+extern void efx_port_dummy_op_void(struct efx_nic *efx);
+
+
+/* MTD */
+#ifdef CONFIG_SFC_MTD
+extern int efx_mtd_probe(struct efx_nic *efx);
+extern void efx_mtd_rename(struct efx_nic *efx);
+extern void efx_mtd_remove(struct efx_nic *efx);
+#else
+static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; }
+static inline void efx_mtd_rename(struct efx_nic *efx) {}
+static inline void efx_mtd_remove(struct efx_nic *efx) {}
+#endif
+
+static inline void efx_schedule_channel(struct efx_channel *channel)
+{
+ netif_vdbg(channel->efx, intr, channel->efx->net_dev,
+ "channel %d scheduling NAPI poll on CPU%d\n",
+ channel->channel, raw_smp_processor_id());
+ channel->work_pending = true;
+
+ napi_schedule(&channel->napi_str);
+}
+
+extern void efx_link_status_changed(struct efx_nic *efx);
+extern void efx_link_set_advertising(struct efx_nic *efx, u32);
+extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
+
+#endif /* EFX_EFX_H */
diff --git a/drivers/net/ethernet/sfc/enum.h b/drivers/net/ethernet/sfc/enum.h
new file mode 100644
index 000000000000..d725a8fbe1a6
--- /dev/null
+++ b/drivers/net/ethernet/sfc/enum.h
@@ -0,0 +1,167 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2007-2009 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_ENUM_H
+#define EFX_ENUM_H
+
+/**
+ * enum efx_loopback_mode - loopback modes
+ * @LOOPBACK_NONE: no loopback
+ * @LOOPBACK_DATA: data path loopback
+ * @LOOPBACK_GMAC: loopback within GMAC
+ * @LOOPBACK_XGMII: loopback after XMAC
+ * @LOOPBACK_XGXS: loopback within BPX after XGXS
+ * @LOOPBACK_XAUI: loopback within BPX before XAUI serdes
+ * @LOOPBACK_GMII: loopback within BPX after GMAC
+ * @LOOPBACK_SGMII: loopback within BPX within SGMII
+ * @LOOPBACK_XGBR: loopback within BPX within XGBR
+ * @LOOPBACK_XFI: loopback within BPX before XFI serdes
+ * @LOOPBACK_XAUI_FAR: loopback within BPX after XAUI serdes
+ * @LOOPBACK_GMII_FAR: loopback within BPX before SGMII
+ * @LOOPBACK_SGMII_FAR: loopback within BPX after SGMII
+ * @LOOPBACK_XFI_FAR: loopback after XFI serdes
+ * @LOOPBACK_GPHY: loopback within 1G PHY at unspecified level
+ * @LOOPBACK_PHYXS: loopback within 10G PHY at PHYXS level
+ * @LOOPBACK_PCS: loopback within 10G PHY at PCS level
+ * @LOOPBACK_PMAPMD: loopback within 10G PHY at PMAPMD level
+ * @LOOPBACK_XPORT: cross port loopback
+ * @LOOPBACK_XGMII_WS: wireside loopback excluding XMAC
+ * @LOOPBACK_XAUI_WS: wireside loopback within BPX within XAUI serdes
+ * @LOOPBACK_XAUI_WS_FAR: wireside loopback within BPX including XAUI serdes
+ * @LOOPBACK_XAUI_WS_NEAR: wireside loopback within BPX excluding XAUI serdes
+ * @LOOPBACK_GMII_WS: wireside loopback excluding GMAC
+ * @LOOPBACK_XFI_WS: wireside loopback excluding XFI serdes
+ * @LOOPBACK_XFI_WS_FAR: wireside loopback including XFI serdes
+ * @LOOPBACK_PHYXS_WS: wireside loopback within 10G PHY at PHYXS level
+ */
+/* Please keep up-to-date w.r.t the following two #defines */
+enum efx_loopback_mode {
+ LOOPBACK_NONE = 0,
+ LOOPBACK_DATA = 1,
+ LOOPBACK_GMAC = 2,
+ LOOPBACK_XGMII = 3,
+ LOOPBACK_XGXS = 4,
+ LOOPBACK_XAUI = 5,
+ LOOPBACK_GMII = 6,
+ LOOPBACK_SGMII = 7,
+ LOOPBACK_XGBR = 8,
+ LOOPBACK_XFI = 9,
+ LOOPBACK_XAUI_FAR = 10,
+ LOOPBACK_GMII_FAR = 11,
+ LOOPBACK_SGMII_FAR = 12,
+ LOOPBACK_XFI_FAR = 13,
+ LOOPBACK_GPHY = 14,
+ LOOPBACK_PHYXS = 15,
+ LOOPBACK_PCS = 16,
+ LOOPBACK_PMAPMD = 17,
+ LOOPBACK_XPORT = 18,
+ LOOPBACK_XGMII_WS = 19,
+ LOOPBACK_XAUI_WS = 20,
+ LOOPBACK_XAUI_WS_FAR = 21,
+ LOOPBACK_XAUI_WS_NEAR = 22,
+ LOOPBACK_GMII_WS = 23,
+ LOOPBACK_XFI_WS = 24,
+ LOOPBACK_XFI_WS_FAR = 25,
+ LOOPBACK_PHYXS_WS = 26,
+ LOOPBACK_MAX
+};
+#define LOOPBACK_TEST_MAX LOOPBACK_PMAPMD
+
+/* These loopbacks occur within the controller */
+#define LOOPBACKS_INTERNAL ((1 << LOOPBACK_DATA) | \
+ (1 << LOOPBACK_GMAC) | \
+ (1 << LOOPBACK_XGMII)| \
+ (1 << LOOPBACK_XGXS) | \
+ (1 << LOOPBACK_XAUI) | \
+ (1 << LOOPBACK_GMII) | \
+ (1 << LOOPBACK_SGMII) | \
+ (1 << LOOPBACK_SGMII) | \
+ (1 << LOOPBACK_XGBR) | \
+ (1 << LOOPBACK_XFI) | \
+ (1 << LOOPBACK_XAUI_FAR) | \
+ (1 << LOOPBACK_GMII_FAR) | \
+ (1 << LOOPBACK_SGMII_FAR) | \
+ (1 << LOOPBACK_XFI_FAR) | \
+ (1 << LOOPBACK_XGMII_WS) | \
+ (1 << LOOPBACK_XAUI_WS) | \
+ (1 << LOOPBACK_XAUI_WS_FAR) | \
+ (1 << LOOPBACK_XAUI_WS_NEAR) | \
+ (1 << LOOPBACK_GMII_WS) | \
+ (1 << LOOPBACK_XFI_WS) | \
+ (1 << LOOPBACK_XFI_WS_FAR))
+
+#define LOOPBACKS_WS ((1 << LOOPBACK_XGMII_WS) | \
+ (1 << LOOPBACK_XAUI_WS) | \
+ (1 << LOOPBACK_XAUI_WS_FAR) | \
+ (1 << LOOPBACK_XAUI_WS_NEAR) | \
+ (1 << LOOPBACK_GMII_WS) | \
+ (1 << LOOPBACK_XFI_WS) | \
+ (1 << LOOPBACK_XFI_WS_FAR) | \
+ (1 << LOOPBACK_PHYXS_WS))
+
+#define LOOPBACKS_EXTERNAL(_efx) \
+ ((_efx)->loopback_modes & ~LOOPBACKS_INTERNAL & \
+ ~(1 << LOOPBACK_NONE))
+
+#define LOOPBACK_MASK(_efx) \
+ (1 << (_efx)->loopback_mode)
+
+#define LOOPBACK_INTERNAL(_efx) \
+ (!!(LOOPBACKS_INTERNAL & LOOPBACK_MASK(_efx)))
+
+#define LOOPBACK_EXTERNAL(_efx) \
+ (!!(LOOPBACK_MASK(_efx) & LOOPBACKS_EXTERNAL(_efx)))
+
+#define LOOPBACK_CHANGED(_from, _to, _mask) \
+ (!!((LOOPBACK_MASK(_from) ^ LOOPBACK_MASK(_to)) & (_mask)))
+
+#define LOOPBACK_OUT_OF(_from, _to, _mask) \
+ ((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))
+
+/*****************************************************************************/
+
+/**
+ * enum reset_type - reset types
+ *
+ * %RESET_TYPE_INVSIBLE, %RESET_TYPE_ALL, %RESET_TYPE_WORLD and
+ * %RESET_TYPE_DISABLE specify the method/scope of the reset. The
+ * other valuesspecify reasons, which efx_schedule_reset() will choose
+ * a method for.
+ *
+ * Reset methods are numbered in order of increasing scope.
+ *
+ * @RESET_TYPE_INVISIBLE: don't reset the PHYs or interrupts
+ * @RESET_TYPE_ALL: reset everything but PCI core blocks
+ * @RESET_TYPE_WORLD: reset everything, save & restore PCI config
+ * @RESET_TYPE_DISABLE: disable NIC
+ * @RESET_TYPE_TX_WATCHDOG: reset due to TX watchdog
+ * @RESET_TYPE_INT_ERROR: reset due to internal error
+ * @RESET_TYPE_RX_RECOVERY: reset to recover from RX datapath errors
+ * @RESET_TYPE_RX_DESC_FETCH: pcie error during rx descriptor fetch
+ * @RESET_TYPE_TX_DESC_FETCH: pcie error during tx descriptor fetch
+ * @RESET_TYPE_TX_SKIP: hardware completed empty tx descriptors
+ * @RESET_TYPE_MC_FAILURE: MC reboot/assertion
+ */
+enum reset_type {
+ RESET_TYPE_INVISIBLE = 0,
+ RESET_TYPE_ALL = 1,
+ RESET_TYPE_WORLD = 2,
+ RESET_TYPE_DISABLE = 3,
+ RESET_TYPE_MAX_METHOD,
+ RESET_TYPE_TX_WATCHDOG,
+ RESET_TYPE_INT_ERROR,
+ RESET_TYPE_RX_RECOVERY,
+ RESET_TYPE_RX_DESC_FETCH,
+ RESET_TYPE_TX_DESC_FETCH,
+ RESET_TYPE_TX_SKIP,
+ RESET_TYPE_MC_FAILURE,
+ RESET_TYPE_MAX,
+};
+
+#endif /* EFX_ENUM_H */
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
new file mode 100644
index 000000000000..bc4643af6dd1
--- /dev/null
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -0,0 +1,1012 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/rtnetlink.h>
+#include <linux/in.h>
+#include "net_driver.h"
+#include "workarounds.h"
+#include "selftest.h"
+#include "efx.h"
+#include "filter.h"
+#include "nic.h"
+
+struct ethtool_string {
+ char name[ETH_GSTRING_LEN];
+};
+
+struct efx_ethtool_stat {
+ const char *name;
+ enum {
+ EFX_ETHTOOL_STAT_SOURCE_mac_stats,
+ EFX_ETHTOOL_STAT_SOURCE_nic,
+ EFX_ETHTOOL_STAT_SOURCE_channel,
+ EFX_ETHTOOL_STAT_SOURCE_tx_queue
+ } source;
+ unsigned offset;
+ u64(*get_stat) (void *field); /* Reader function */
+};
+
+/* Initialiser for a struct #efx_ethtool_stat with type-checking */
+#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
+ get_stat_function) { \
+ .name = #stat_name, \
+ .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
+ .offset = ((((field_type *) 0) == \
+ &((struct efx_##source_name *)0)->field) ? \
+ offsetof(struct efx_##source_name, field) : \
+ offsetof(struct efx_##source_name, field)), \
+ .get_stat = get_stat_function, \
+}
+
+static u64 efx_get_uint_stat(void *field)
+{
+ return *(unsigned int *)field;
+}
+
+static u64 efx_get_ulong_stat(void *field)
+{
+ return *(unsigned long *)field;
+}
+
+static u64 efx_get_u64_stat(void *field)
+{
+ return *(u64 *) field;
+}
+
+static u64 efx_get_atomic_stat(void *field)
+{
+ return atomic_read((atomic_t *) field);
+}
+
+#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
+ EFX_ETHTOOL_STAT(field, mac_stats, field, \
+ unsigned long, efx_get_ulong_stat)
+
+#define EFX_ETHTOOL_U64_MAC_STAT(field) \
+ EFX_ETHTOOL_STAT(field, mac_stats, field, \
+ u64, efx_get_u64_stat)
+
+#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
+ EFX_ETHTOOL_STAT(name, nic, n_##name, \
+ unsigned int, efx_get_uint_stat)
+
+#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
+ EFX_ETHTOOL_STAT(field, nic, field, \
+ atomic_t, efx_get_atomic_stat)
+
+#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
+ EFX_ETHTOOL_STAT(field, channel, n_##field, \
+ unsigned int, efx_get_uint_stat)
+
+#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
+ EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
+ unsigned int, efx_get_uint_stat)
+
+static struct efx_ethtool_stat efx_ethtool_stats[] = {
+ EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
+ EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
+ EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
+ EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
+ EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
+ EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
+ EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
+ EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
+ EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
+ EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
+ EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
+ EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
+ EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
+ EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
+ EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
+ EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
+ EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
+ EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
+ EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
+};
+
+/* Number of ethtool statistics */
+#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
+
+#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
+
+/**************************************************************************
+ *
+ * Ethtool operations
+ *
+ **************************************************************************
+ */
+
+/* Identify device by flashing LEDs */
+static int efx_ethtool_phys_id(struct net_device *net_dev,
+ enum ethtool_phys_id_state state)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ enum efx_led_mode mode = EFX_LED_DEFAULT;
+
+ switch (state) {
+ case ETHTOOL_ID_ON:
+ mode = EFX_LED_ON;
+ break;
+ case ETHTOOL_ID_OFF:
+ mode = EFX_LED_OFF;
+ break;
+ case ETHTOOL_ID_INACTIVE:
+ mode = EFX_LED_DEFAULT;
+ break;
+ case ETHTOOL_ID_ACTIVE:
+ return 1; /* cycle on/off once per second */
+ }
+
+ efx->type->set_id_led(efx, mode);
+ return 0;
+}
+
+/* This must be called with rtnl_lock held. */
+static int efx_ethtool_get_settings(struct net_device *net_dev,
+ struct ethtool_cmd *ecmd)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_link_state *link_state = &efx->link_state;
+
+ mutex_lock(&efx->mac_lock);
+ efx->phy_op->get_settings(efx, ecmd);
+ mutex_unlock(&efx->mac_lock);
+
+ /* GMAC does not support 1000Mbps HD */
+ ecmd->supported &= ~SUPPORTED_1000baseT_Half;
+ /* Both MACs support pause frames (bidirectional and respond-only) */
+ ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+
+ if (LOOPBACK_INTERNAL(efx)) {
+ ethtool_cmd_speed_set(ecmd, link_state->speed);
+ ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
+ }
+
+ return 0;
+}
+
+/* This must be called with rtnl_lock held. */
+static int efx_ethtool_set_settings(struct net_device *net_dev,
+ struct ethtool_cmd *ecmd)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc;
+
+ /* GMAC does not support 1000Mbps HD */
+ if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
+ (ecmd->duplex != DUPLEX_FULL)) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "rejecting unsupported 1000Mbps HD setting\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&efx->mac_lock);
+ rc = efx->phy_op->set_settings(efx, ecmd);
+ mutex_unlock(&efx->mac_lock);
+ return rc;
+}
+
+static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
+ struct ethtool_drvinfo *info)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
+ strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ efx_mcdi_print_fwver(efx, info->fw_version,
+ sizeof(info->fw_version));
+ strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
+}
+
+static int efx_ethtool_get_regs_len(struct net_device *net_dev)
+{
+ return efx_nic_get_regs_len(netdev_priv(net_dev));
+}
+
+static void efx_ethtool_get_regs(struct net_device *net_dev,
+ struct ethtool_regs *regs, void *buf)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ regs->version = efx->type->revision;
+ efx_nic_get_regs(efx, buf);
+}
+
+static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ return efx->msg_enable;
+}
+
+static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ efx->msg_enable = msg_enable;
+}
+
+/**
+ * efx_fill_test - fill in an individual self-test entry
+ * @test_index: Index of the test
+ * @strings: Ethtool strings, or %NULL
+ * @data: Ethtool test results, or %NULL
+ * @test: Pointer to test result (used only if data != %NULL)
+ * @unit_format: Unit name format (e.g. "chan\%d")
+ * @unit_id: Unit id (e.g. 0 for "chan0")
+ * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
+ * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
+ *
+ * Fill in an individual self-test entry.
+ */
+static void efx_fill_test(unsigned int test_index,
+ struct ethtool_string *strings, u64 *data,
+ int *test, const char *unit_format, int unit_id,
+ const char *test_format, const char *test_id)
+{
+ struct ethtool_string unit_str, test_str;
+
+ /* Fill data value, if applicable */
+ if (data)
+ data[test_index] = *test;
+
+ /* Fill string, if applicable */
+ if (strings) {
+ if (strchr(unit_format, '%'))
+ snprintf(unit_str.name, sizeof(unit_str.name),
+ unit_format, unit_id);
+ else
+ strcpy(unit_str.name, unit_format);
+ snprintf(test_str.name, sizeof(test_str.name),
+ test_format, test_id);
+ snprintf(strings[test_index].name,
+ sizeof(strings[test_index].name),
+ "%-6s %-24s", unit_str.name, test_str.name);
+ }
+}
+
+#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
+#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
+#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
+#define EFX_LOOPBACK_NAME(_mode, _counter) \
+ "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
+
+/**
+ * efx_fill_loopback_test - fill in a block of loopback self-test entries
+ * @efx: Efx NIC
+ * @lb_tests: Efx loopback self-test results structure
+ * @mode: Loopback test mode
+ * @test_index: Starting index of the test
+ * @strings: Ethtool strings, or %NULL
+ * @data: Ethtool test results, or %NULL
+ */
+static int efx_fill_loopback_test(struct efx_nic *efx,
+ struct efx_loopback_self_tests *lb_tests,
+ enum efx_loopback_mode mode,
+ unsigned int test_index,
+ struct ethtool_string *strings, u64 *data)
+{
+ struct efx_channel *channel = efx_get_channel(efx, 0);
+ struct efx_tx_queue *tx_queue;
+
+ efx_for_each_channel_tx_queue(tx_queue, channel) {
+ efx_fill_test(test_index++, strings, data,
+ &lb_tests->tx_sent[tx_queue->queue],
+ EFX_TX_QUEUE_NAME(tx_queue),
+ EFX_LOOPBACK_NAME(mode, "tx_sent"));
+ efx_fill_test(test_index++, strings, data,
+ &lb_tests->tx_done[tx_queue->queue],
+ EFX_TX_QUEUE_NAME(tx_queue),
+ EFX_LOOPBACK_NAME(mode, "tx_done"));
+ }
+ efx_fill_test(test_index++, strings, data,
+ &lb_tests->rx_good,
+ "rx", 0,
+ EFX_LOOPBACK_NAME(mode, "rx_good"));
+ efx_fill_test(test_index++, strings, data,
+ &lb_tests->rx_bad,
+ "rx", 0,
+ EFX_LOOPBACK_NAME(mode, "rx_bad"));
+
+ return test_index;
+}
+
+/**
+ * efx_ethtool_fill_self_tests - get self-test details
+ * @efx: Efx NIC
+ * @tests: Efx self-test results structure, or %NULL
+ * @strings: Ethtool strings, or %NULL
+ * @data: Ethtool test results, or %NULL
+ */
+static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
+ struct efx_self_tests *tests,
+ struct ethtool_string *strings,
+ u64 *data)
+{
+ struct efx_channel *channel;
+ unsigned int n = 0, i;
+ enum efx_loopback_mode mode;
+
+ efx_fill_test(n++, strings, data, &tests->phy_alive,
+ "phy", 0, "alive", NULL);
+ efx_fill_test(n++, strings, data, &tests->nvram,
+ "core", 0, "nvram", NULL);
+ efx_fill_test(n++, strings, data, &tests->interrupt,
+ "core", 0, "interrupt", NULL);
+
+ /* Event queues */
+ efx_for_each_channel(channel, efx) {
+ efx_fill_test(n++, strings, data,
+ &tests->eventq_dma[channel->channel],
+ EFX_CHANNEL_NAME(channel),
+ "eventq.dma", NULL);
+ efx_fill_test(n++, strings, data,
+ &tests->eventq_int[channel->channel],
+ EFX_CHANNEL_NAME(channel),
+ "eventq.int", NULL);
+ efx_fill_test(n++, strings, data,
+ &tests->eventq_poll[channel->channel],
+ EFX_CHANNEL_NAME(channel),
+ "eventq.poll", NULL);
+ }
+
+ efx_fill_test(n++, strings, data, &tests->registers,
+ "core", 0, "registers", NULL);
+
+ if (efx->phy_op->run_tests != NULL) {
+ EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
+
+ for (i = 0; true; ++i) {
+ const char *name;
+
+ EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
+ name = efx->phy_op->test_name(efx, i);
+ if (name == NULL)
+ break;
+
+ efx_fill_test(n++, strings, data, &tests->phy_ext[i],
+ "phy", 0, name, NULL);
+ }
+ }
+
+ /* Loopback tests */
+ for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
+ if (!(efx->loopback_modes & (1 << mode)))
+ continue;
+ n = efx_fill_loopback_test(efx,
+ &tests->loopback[mode], mode, n,
+ strings, data);
+ }
+
+ return n;
+}
+
+static int efx_ethtool_get_sset_count(struct net_device *net_dev,
+ int string_set)
+{
+ switch (string_set) {
+ case ETH_SS_STATS:
+ return EFX_ETHTOOL_NUM_STATS;
+ case ETH_SS_TEST:
+ return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
+ NULL, NULL, NULL);
+ default:
+ return -EINVAL;
+ }
+}
+
+static void efx_ethtool_get_strings(struct net_device *net_dev,
+ u32 string_set, u8 *strings)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct ethtool_string *ethtool_strings =
+ (struct ethtool_string *)strings;
+ int i;
+
+ switch (string_set) {
+ case ETH_SS_STATS:
+ for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
+ strncpy(ethtool_strings[i].name,
+ efx_ethtool_stats[i].name,
+ sizeof(ethtool_strings[i].name));
+ break;
+ case ETH_SS_TEST:
+ efx_ethtool_fill_self_tests(efx, NULL,
+ ethtool_strings, NULL);
+ break;
+ default:
+ /* No other string sets */
+ break;
+ }
+}
+
+static void efx_ethtool_get_stats(struct net_device *net_dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_mac_stats *mac_stats = &efx->mac_stats;
+ struct efx_ethtool_stat *stat;
+ struct efx_channel *channel;
+ struct efx_tx_queue *tx_queue;
+ struct rtnl_link_stats64 temp;
+ int i;
+
+ EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
+
+ /* Update MAC and NIC statistics */
+ dev_get_stats(net_dev, &temp);
+
+ /* Fill detailed statistics buffer */
+ for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
+ stat = &efx_ethtool_stats[i];
+ switch (stat->source) {
+ case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
+ data[i] = stat->get_stat((void *)mac_stats +
+ stat->offset);
+ break;
+ case EFX_ETHTOOL_STAT_SOURCE_nic:
+ data[i] = stat->get_stat((void *)efx + stat->offset);
+ break;
+ case EFX_ETHTOOL_STAT_SOURCE_channel:
+ data[i] = 0;
+ efx_for_each_channel(channel, efx)
+ data[i] += stat->get_stat((void *)channel +
+ stat->offset);
+ break;
+ case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
+ data[i] = 0;
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ data[i] +=
+ stat->get_stat((void *)tx_queue
+ + stat->offset);
+ }
+ break;
+ }
+ }
+}
+
+static void efx_ethtool_self_test(struct net_device *net_dev,
+ struct ethtool_test *test, u64 *data)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_self_tests *efx_tests;
+ int already_up;
+ int rc = -ENOMEM;
+
+ efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
+ if (!efx_tests)
+ goto fail;
+
+
+ ASSERT_RTNL();
+ if (efx->state != STATE_RUNNING) {
+ rc = -EIO;
+ goto fail1;
+ }
+
+ netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
+ (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
+
+ /* We need rx buffers and interrupts. */
+ already_up = (efx->net_dev->flags & IFF_UP);
+ if (!already_up) {
+ rc = dev_open(efx->net_dev);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed opening device.\n");
+ goto fail1;
+ }
+ }
+
+ rc = efx_selftest(efx, efx_tests, test->flags);
+
+ if (!already_up)
+ dev_close(efx->net_dev);
+
+ netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
+ rc == 0 ? "passed" : "failed",
+ (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
+
+fail1:
+ /* Fill ethtool results structures */
+ efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
+ kfree(efx_tests);
+fail:
+ if (rc)
+ test->flags |= ETH_TEST_FL_FAILED;
+}
+
+/* Restart autonegotiation */
+static int efx_ethtool_nway_reset(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ return mdio45_nway_restart(&efx->mdio);
+}
+
+static int efx_ethtool_get_coalesce(struct net_device *net_dev,
+ struct ethtool_coalesce *coalesce)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_channel *channel;
+
+ memset(coalesce, 0, sizeof(*coalesce));
+
+ /* Find lowest IRQ moderation across all used TX queues */
+ coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
+ efx_for_each_channel(channel, efx) {
+ if (!efx_channel_has_tx_queues(channel))
+ continue;
+ if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
+ if (channel->channel < efx->n_rx_channels)
+ coalesce->tx_coalesce_usecs_irq =
+ channel->irq_moderation;
+ else
+ coalesce->tx_coalesce_usecs_irq = 0;
+ }
+ }
+
+ coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
+ coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
+
+ coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
+ coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
+
+ return 0;
+}
+
+/* Set coalescing parameters
+ * The difficulties occur for shared channels
+ */
+static int efx_ethtool_set_coalesce(struct net_device *net_dev,
+ struct ethtool_coalesce *coalesce)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_channel *channel;
+ unsigned tx_usecs, rx_usecs, adaptive;
+
+ if (coalesce->use_adaptive_tx_coalesce)
+ return -EOPNOTSUPP;
+
+ if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
+ netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
+ "Only rx/tx_coalesce_usecs_irq are supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ rx_usecs = coalesce->rx_coalesce_usecs_irq;
+ tx_usecs = coalesce->tx_coalesce_usecs_irq;
+ adaptive = coalesce->use_adaptive_rx_coalesce;
+
+ /* If the channel is shared only allow RX parameters to be set */
+ efx_for_each_channel(channel, efx) {
+ if (efx_channel_has_rx_queue(channel) &&
+ efx_channel_has_tx_queues(channel) &&
+ tx_usecs) {
+ netif_err(efx, drv, efx->net_dev, "Channel is shared. "
+ "Only RX coalescing may be set\n");
+ return -EOPNOTSUPP;
+ }
+ }
+
+ efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
+ efx_for_each_channel(channel, efx)
+ efx->type->push_irq_moderation(channel);
+
+ return 0;
+}
+
+static void efx_ethtool_get_ringparam(struct net_device *net_dev,
+ struct ethtool_ringparam *ring)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
+ ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
+ ring->rx_mini_max_pending = 0;
+ ring->rx_jumbo_max_pending = 0;
+ ring->rx_pending = efx->rxq_entries;
+ ring->tx_pending = efx->txq_entries;
+ ring->rx_mini_pending = 0;
+ ring->rx_jumbo_pending = 0;
+}
+
+static int efx_ethtool_set_ringparam(struct net_device *net_dev,
+ struct ethtool_ringparam *ring)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
+ ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
+ ring->tx_pending > EFX_MAX_DMAQ_SIZE)
+ return -EINVAL;
+
+ if (ring->rx_pending < EFX_MIN_RING_SIZE ||
+ ring->tx_pending < EFX_MIN_RING_SIZE) {
+ netif_err(efx, drv, efx->net_dev,
+ "TX and RX queues cannot be smaller than %ld\n",
+ EFX_MIN_RING_SIZE);
+ return -EINVAL;
+ }
+
+ return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
+}
+
+static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ u8 wanted_fc, old_fc;
+ u32 old_adv;
+ bool reset;
+ int rc = 0;
+
+ mutex_lock(&efx->mac_lock);
+
+ wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
+ (pause->tx_pause ? EFX_FC_TX : 0) |
+ (pause->autoneg ? EFX_FC_AUTO : 0));
+
+ if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "Flow control unsupported: tx ON rx OFF\n");
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "Autonegotiation is disabled\n");
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /* TX flow control may automatically turn itself off if the
+ * link partner (intermittently) stops responding to pause
+ * frames. There isn't any indication that this has happened,
+ * so the best we do is leave it up to the user to spot this
+ * and fix it be cycling transmit flow control on this end. */
+ reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
+ if (EFX_WORKAROUND_11482(efx) && reset) {
+ if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
+ /* Recover by resetting the EM block */
+ falcon_stop_nic_stats(efx);
+ falcon_drain_tx_fifo(efx);
+ efx->mac_op->reconfigure(efx);
+ falcon_start_nic_stats(efx);
+ } else {
+ /* Schedule a reset to recover */
+ efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
+ }
+ }
+
+ old_adv = efx->link_advertising;
+ old_fc = efx->wanted_fc;
+ efx_link_set_wanted_fc(efx, wanted_fc);
+ if (efx->link_advertising != old_adv ||
+ (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
+ rc = efx->phy_op->reconfigure(efx);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "Unable to advertise requested flow "
+ "control setting\n");
+ goto out;
+ }
+ }
+
+ /* Reconfigure the MAC. The PHY *may* generate a link state change event
+ * if the user just changed the advertised capabilities, but there's no
+ * harm doing this twice */
+ efx->mac_op->reconfigure(efx);
+
+out:
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
+
+static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
+ pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
+ pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
+}
+
+
+static void efx_ethtool_get_wol(struct net_device *net_dev,
+ struct ethtool_wolinfo *wol)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ return efx->type->get_wol(efx, wol);
+}
+
+
+static int efx_ethtool_set_wol(struct net_device *net_dev,
+ struct ethtool_wolinfo *wol)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ return efx->type->set_wol(efx, wol->wolopts);
+}
+
+static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc;
+
+ rc = efx->type->map_reset_flags(flags);
+ if (rc < 0)
+ return rc;
+
+ return efx_reset(efx, rc);
+}
+
+static int
+efx_ethtool_get_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *info, void *rules __always_unused)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXRINGS:
+ info->data = efx->n_rx_channels;
+ return 0;
+
+ case ETHTOOL_GRXFH: {
+ unsigned min_revision = 0;
+
+ info->data = 0;
+ switch (info->flow_type) {
+ case TCP_V4_FLOW:
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case IPV4_FLOW:
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ min_revision = EFX_REV_FALCON_B0;
+ break;
+ case TCP_V6_FLOW:
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case IPV6_FLOW:
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ min_revision = EFX_REV_SIENA_A0;
+ break;
+ default:
+ break;
+ }
+ if (efx_nic_rev(efx) < min_revision)
+ info->data = 0;
+ return 0;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
+ struct ethtool_rx_ntuple *ntuple)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
+ struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
+ struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
+ struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
+ struct efx_filter_spec filter;
+ int rc;
+
+ /* Range-check action */
+ if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
+ ntuple->fs.action >= (s32)efx->n_rx_channels)
+ return -EINVAL;
+
+ if (~ntuple->fs.data_mask)
+ return -EINVAL;
+
+ efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
+ (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
+ 0xfff : ntuple->fs.action);
+
+ switch (ntuple->fs.flow_type) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW: {
+ u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
+ IPPROTO_TCP : IPPROTO_UDP);
+
+ /* Must match all of destination, */
+ if (ip_mask->ip4dst | ip_mask->pdst)
+ return -EINVAL;
+ /* all or none of source, */
+ if ((ip_mask->ip4src | ip_mask->psrc) &&
+ ((__force u32)~ip_mask->ip4src |
+ (__force u16)~ip_mask->psrc))
+ return -EINVAL;
+ /* and nothing else */
+ if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
+ return -EINVAL;
+
+ if (!ip_mask->ip4src)
+ rc = efx_filter_set_ipv4_full(&filter, proto,
+ ip_entry->ip4dst,
+ ip_entry->pdst,
+ ip_entry->ip4src,
+ ip_entry->psrc);
+ else
+ rc = efx_filter_set_ipv4_local(&filter, proto,
+ ip_entry->ip4dst,
+ ip_entry->pdst);
+ if (rc)
+ return rc;
+ break;
+ }
+
+ case ETHER_FLOW:
+ /* Must match all of destination, */
+ if (!is_zero_ether_addr(mac_mask->h_dest))
+ return -EINVAL;
+ /* all or none of VID, */
+ if (ntuple->fs.vlan_tag_mask != 0xf000 &&
+ ntuple->fs.vlan_tag_mask != 0xffff)
+ return -EINVAL;
+ /* and nothing else */
+ if (!is_broadcast_ether_addr(mac_mask->h_source) ||
+ mac_mask->h_proto != htons(0xffff))
+ return -EINVAL;
+
+ rc = efx_filter_set_eth_local(
+ &filter,
+ (ntuple->fs.vlan_tag_mask == 0xf000) ?
+ ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
+ mac_entry->h_dest);
+ if (rc)
+ return rc;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
+ return efx_filter_remove_filter(efx, &filter);
+
+ rc = efx_filter_insert_filter(efx, &filter, true);
+ return rc < 0 ? rc : 0;
+}
+
+static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
+ struct ethtool_rxfh_indir *indir)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ size_t copy_size =
+ min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return -EOPNOTSUPP;
+
+ indir->size = ARRAY_SIZE(efx->rx_indir_table);
+ memcpy(indir->ring_index, efx->rx_indir_table,
+ copy_size * sizeof(indir->ring_index[0]));
+ return 0;
+}
+
+static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
+ const struct ethtool_rxfh_indir *indir)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ size_t i;
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return -EOPNOTSUPP;
+
+ /* Validate size and indices */
+ if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
+ return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+ if (indir->ring_index[i] >= efx->n_rx_channels)
+ return -EINVAL;
+
+ memcpy(efx->rx_indir_table, indir->ring_index,
+ sizeof(efx->rx_indir_table));
+ efx_nic_push_rx_indir_table(efx);
+ return 0;
+}
+
+const struct ethtool_ops efx_ethtool_ops = {
+ .get_settings = efx_ethtool_get_settings,
+ .set_settings = efx_ethtool_set_settings,
+ .get_drvinfo = efx_ethtool_get_drvinfo,
+ .get_regs_len = efx_ethtool_get_regs_len,
+ .get_regs = efx_ethtool_get_regs,
+ .get_msglevel = efx_ethtool_get_msglevel,
+ .set_msglevel = efx_ethtool_set_msglevel,
+ .nway_reset = efx_ethtool_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_coalesce = efx_ethtool_get_coalesce,
+ .set_coalesce = efx_ethtool_set_coalesce,
+ .get_ringparam = efx_ethtool_get_ringparam,
+ .set_ringparam = efx_ethtool_set_ringparam,
+ .get_pauseparam = efx_ethtool_get_pauseparam,
+ .set_pauseparam = efx_ethtool_set_pauseparam,
+ .get_sset_count = efx_ethtool_get_sset_count,
+ .self_test = efx_ethtool_self_test,
+ .get_strings = efx_ethtool_get_strings,
+ .set_phys_id = efx_ethtool_phys_id,
+ .get_ethtool_stats = efx_ethtool_get_stats,
+ .get_wol = efx_ethtool_get_wol,
+ .set_wol = efx_ethtool_set_wol,
+ .reset = efx_ethtool_reset,
+ .get_rxnfc = efx_ethtool_get_rxnfc,
+ .set_rx_ntuple = efx_ethtool_set_rx_ntuple,
+ .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
+ .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
+};
diff --git a/drivers/net/ethernet/sfc/falcon.c b/drivers/net/ethernet/sfc/falcon.c
new file mode 100644
index 000000000000..94bf4aaf984d
--- /dev/null
+++ b/drivers/net/ethernet/sfc/falcon.c
@@ -0,0 +1,1841 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/i2c.h>
+#include <linux/mii.h>
+#include <linux/slab.h>
+#include "net_driver.h"
+#include "bitfield.h"
+#include "efx.h"
+#include "mac.h"
+#include "spi.h"
+#include "nic.h"
+#include "regs.h"
+#include "io.h"
+#include "phy.h"
+#include "workarounds.h"
+
+/* Hardware control for SFC4000 (aka Falcon). */
+
+static const unsigned int
+/* "Large" EEPROM device: Atmel AT25640 or similar
+ * 8 KB, 16-bit address, 32 B write block */
+large_eeprom_type = ((13 << SPI_DEV_TYPE_SIZE_LBN)
+ | (2 << SPI_DEV_TYPE_ADDR_LEN_LBN)
+ | (5 << SPI_DEV_TYPE_BLOCK_SIZE_LBN)),
+/* Default flash device: Atmel AT25F1024
+ * 128 KB, 24-bit address, 32 KB erase block, 256 B write block */
+default_flash_type = ((17 << SPI_DEV_TYPE_SIZE_LBN)
+ | (3 << SPI_DEV_TYPE_ADDR_LEN_LBN)
+ | (0x52 << SPI_DEV_TYPE_ERASE_CMD_LBN)
+ | (15 << SPI_DEV_TYPE_ERASE_SIZE_LBN)
+ | (8 << SPI_DEV_TYPE_BLOCK_SIZE_LBN));
+
+/**************************************************************************
+ *
+ * I2C bus - this is a bit-bashing interface using GPIO pins
+ * Note that it uses the output enables to tristate the outputs
+ * SDA is the data pin and SCL is the clock
+ *
+ **************************************************************************
+ */
+static void falcon_setsda(void *data, int state)
+{
+ struct efx_nic *efx = (struct efx_nic *)data;
+ efx_oword_t reg;
+
+ efx_reado(efx, &reg, FR_AB_GPIO_CTL);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_GPIO3_OEN, !state);
+ efx_writeo(efx, &reg, FR_AB_GPIO_CTL);
+}
+
+static void falcon_setscl(void *data, int state)
+{
+ struct efx_nic *efx = (struct efx_nic *)data;
+ efx_oword_t reg;
+
+ efx_reado(efx, &reg, FR_AB_GPIO_CTL);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_GPIO0_OEN, !state);
+ efx_writeo(efx, &reg, FR_AB_GPIO_CTL);
+}
+
+static int falcon_getsda(void *data)
+{
+ struct efx_nic *efx = (struct efx_nic *)data;
+ efx_oword_t reg;
+
+ efx_reado(efx, &reg, FR_AB_GPIO_CTL);
+ return EFX_OWORD_FIELD(reg, FRF_AB_GPIO3_IN);
+}
+
+static int falcon_getscl(void *data)
+{
+ struct efx_nic *efx = (struct efx_nic *)data;
+ efx_oword_t reg;
+
+ efx_reado(efx, &reg, FR_AB_GPIO_CTL);
+ return EFX_OWORD_FIELD(reg, FRF_AB_GPIO0_IN);
+}
+
+static struct i2c_algo_bit_data falcon_i2c_bit_operations = {
+ .setsda = falcon_setsda,
+ .setscl = falcon_setscl,
+ .getsda = falcon_getsda,
+ .getscl = falcon_getscl,
+ .udelay = 5,
+ /* Wait up to 50 ms for slave to let us pull SCL high */
+ .timeout = DIV_ROUND_UP(HZ, 20),
+};
+
+static void falcon_push_irq_moderation(struct efx_channel *channel)
+{
+ efx_dword_t timer_cmd;
+ struct efx_nic *efx = channel->efx;
+
+ /* Set timer register */
+ if (channel->irq_moderation) {
+ EFX_POPULATE_DWORD_2(timer_cmd,
+ FRF_AB_TC_TIMER_MODE,
+ FFE_BB_TIMER_MODE_INT_HLDOFF,
+ FRF_AB_TC_TIMER_VAL,
+ channel->irq_moderation - 1);
+ } else {
+ EFX_POPULATE_DWORD_2(timer_cmd,
+ FRF_AB_TC_TIMER_MODE,
+ FFE_BB_TIMER_MODE_DIS,
+ FRF_AB_TC_TIMER_VAL, 0);
+ }
+ BUILD_BUG_ON(FR_AA_TIMER_COMMAND_KER != FR_BZ_TIMER_COMMAND_P0);
+ efx_writed_page_locked(efx, &timer_cmd, FR_BZ_TIMER_COMMAND_P0,
+ channel->channel);
+}
+
+static void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
+
+static void falcon_prepare_flush(struct efx_nic *efx)
+{
+ falcon_deconfigure_mac_wrapper(efx);
+
+ /* Wait for the tx and rx fifo's to get to the next packet boundary
+ * (~1ms without back-pressure), then to drain the remainder of the
+ * fifo's at data path speeds (negligible), with a healthy margin. */
+ msleep(10);
+}
+
+/* Acknowledge a legacy interrupt from Falcon
+ *
+ * This acknowledges a legacy (not MSI) interrupt via INT_ACK_KER_REG.
+ *
+ * Due to SFC bug 3706 (silicon revision <=A1) reads can be duplicated in the
+ * BIU. Interrupt acknowledge is read sensitive so must write instead
+ * (then read to ensure the BIU collector is flushed)
+ *
+ * NB most hardware supports MSI interrupts
+ */
+inline void falcon_irq_ack_a1(struct efx_nic *efx)
+{
+ efx_dword_t reg;
+
+ EFX_POPULATE_DWORD_1(reg, FRF_AA_INT_ACK_KER_FIELD, 0xb7eb7e);
+ efx_writed(efx, &reg, FR_AA_INT_ACK_KER);
+ efx_readd(efx, &reg, FR_AA_WORK_AROUND_BROKEN_PCI_READS);
+}
+
+
+irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id)
+{
+ struct efx_nic *efx = dev_id;
+ efx_oword_t *int_ker = efx->irq_status.addr;
+ int syserr;
+ int queues;
+
+ /* Check to see if this is our interrupt. If it isn't, we
+ * exit without having touched the hardware.
+ */
+ if (unlikely(EFX_OWORD_IS_ZERO(*int_ker))) {
+ netif_vdbg(efx, intr, efx->net_dev,
+ "IRQ %d on CPU %d not for me\n", irq,
+ raw_smp_processor_id());
+ return IRQ_NONE;
+ }
+ efx->last_irq_cpu = raw_smp_processor_id();
+ netif_vdbg(efx, intr, efx->net_dev,
+ "IRQ %d on CPU %d status " EFX_OWORD_FMT "\n",
+ irq, raw_smp_processor_id(), EFX_OWORD_VAL(*int_ker));
+
+ /* Determine interrupting queues, clear interrupt status
+ * register and acknowledge the device interrupt.
+ */
+ BUILD_BUG_ON(FSF_AZ_NET_IVEC_INT_Q_WIDTH > EFX_MAX_CHANNELS);
+ queues = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_INT_Q);
+
+ /* Check to see if we have a serious error condition */
+ if (queues & (1U << efx->fatal_irq_level)) {
+ syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT);
+ if (unlikely(syserr))
+ return efx_nic_fatal_interrupt(efx);
+ }
+
+ EFX_ZERO_OWORD(*int_ker);
+ wmb(); /* Ensure the vector is cleared before interrupt ack */
+ falcon_irq_ack_a1(efx);
+
+ if (queues & 1)
+ efx_schedule_channel(efx_get_channel(efx, 0));
+ if (queues & 2)
+ efx_schedule_channel(efx_get_channel(efx, 1));
+ return IRQ_HANDLED;
+}
+/**************************************************************************
+ *
+ * EEPROM/flash
+ *
+ **************************************************************************
+ */
+
+#define FALCON_SPI_MAX_LEN sizeof(efx_oword_t)
+
+static int falcon_spi_poll(struct efx_nic *efx)
+{
+ efx_oword_t reg;
+ efx_reado(efx, &reg, FR_AB_EE_SPI_HCMD);
+ return EFX_OWORD_FIELD(reg, FRF_AB_EE_SPI_HCMD_CMD_EN) ? -EBUSY : 0;
+}
+
+/* Wait for SPI command completion */
+static int falcon_spi_wait(struct efx_nic *efx)
+{
+ /* Most commands will finish quickly, so we start polling at
+ * very short intervals. Sometimes the command may have to
+ * wait for VPD or expansion ROM access outside of our
+ * control, so we allow up to 100 ms. */
+ unsigned long timeout = jiffies + 1 + DIV_ROUND_UP(HZ, 10);
+ int i;
+
+ for (i = 0; i < 10; i++) {
+ if (!falcon_spi_poll(efx))
+ return 0;
+ udelay(10);
+ }
+
+ for (;;) {
+ if (!falcon_spi_poll(efx))
+ return 0;
+ if (time_after_eq(jiffies, timeout)) {
+ netif_err(efx, hw, efx->net_dev,
+ "timed out waiting for SPI\n");
+ return -ETIMEDOUT;
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+}
+
+int falcon_spi_cmd(struct efx_nic *efx, const struct efx_spi_device *spi,
+ unsigned int command, int address,
+ const void *in, void *out, size_t len)
+{
+ bool addressed = (address >= 0);
+ bool reading = (out != NULL);
+ efx_oword_t reg;
+ int rc;
+
+ /* Input validation */
+ if (len > FALCON_SPI_MAX_LEN)
+ return -EINVAL;
+
+ /* Check that previous command is not still running */
+ rc = falcon_spi_poll(efx);
+ if (rc)
+ return rc;
+
+ /* Program address register, if we have an address */
+ if (addressed) {
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_EE_SPI_HADR_ADR, address);
+ efx_writeo(efx, &reg, FR_AB_EE_SPI_HADR);
+ }
+
+ /* Program data register, if we have data */
+ if (in != NULL) {
+ memcpy(&reg, in, len);
+ efx_writeo(efx, &reg, FR_AB_EE_SPI_HDATA);
+ }
+
+ /* Issue read/write command */
+ EFX_POPULATE_OWORD_7(reg,
+ FRF_AB_EE_SPI_HCMD_CMD_EN, 1,
+ FRF_AB_EE_SPI_HCMD_SF_SEL, spi->device_id,
+ FRF_AB_EE_SPI_HCMD_DABCNT, len,
+ FRF_AB_EE_SPI_HCMD_READ, reading,
+ FRF_AB_EE_SPI_HCMD_DUBCNT, 0,
+ FRF_AB_EE_SPI_HCMD_ADBCNT,
+ (addressed ? spi->addr_len : 0),
+ FRF_AB_EE_SPI_HCMD_ENC, command);
+ efx_writeo(efx, &reg, FR_AB_EE_SPI_HCMD);
+
+ /* Wait for read/write to complete */
+ rc = falcon_spi_wait(efx);
+ if (rc)
+ return rc;
+
+ /* Read data */
+ if (out != NULL) {
+ efx_reado(efx, &reg, FR_AB_EE_SPI_HDATA);
+ memcpy(out, &reg, len);
+ }
+
+ return 0;
+}
+
+static size_t
+falcon_spi_write_limit(const struct efx_spi_device *spi, size_t start)
+{
+ return min(FALCON_SPI_MAX_LEN,
+ (spi->block_size - (start & (spi->block_size - 1))));
+}
+
+static inline u8
+efx_spi_munge_command(const struct efx_spi_device *spi,
+ const u8 command, const unsigned int address)
+{
+ return command | (((address >> 8) & spi->munge_address) << 3);
+}
+
+/* Wait up to 10 ms for buffered write completion */
+int
+falcon_spi_wait_write(struct efx_nic *efx, const struct efx_spi_device *spi)
+{
+ unsigned long timeout = jiffies + 1 + DIV_ROUND_UP(HZ, 100);
+ u8 status;
+ int rc;
+
+ for (;;) {
+ rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
+ &status, sizeof(status));
+ if (rc)
+ return rc;
+ if (!(status & SPI_STATUS_NRDY))
+ return 0;
+ if (time_after_eq(jiffies, timeout)) {
+ netif_err(efx, hw, efx->net_dev,
+ "SPI write timeout on device %d"
+ " last status=0x%02x\n",
+ spi->device_id, status);
+ return -ETIMEDOUT;
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+}
+
+int falcon_spi_read(struct efx_nic *efx, const struct efx_spi_device *spi,
+ loff_t start, size_t len, size_t *retlen, u8 *buffer)
+{
+ size_t block_len, pos = 0;
+ unsigned int command;
+ int rc = 0;
+
+ while (pos < len) {
+ block_len = min(len - pos, FALCON_SPI_MAX_LEN);
+
+ command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+ rc = falcon_spi_cmd(efx, spi, command, start + pos, NULL,
+ buffer + pos, block_len);
+ if (rc)
+ break;
+ pos += block_len;
+
+ /* Avoid locking up the system */
+ cond_resched();
+ if (signal_pending(current)) {
+ rc = -EINTR;
+ break;
+ }
+ }
+
+ if (retlen)
+ *retlen = pos;
+ return rc;
+}
+
+int
+falcon_spi_write(struct efx_nic *efx, const struct efx_spi_device *spi,
+ loff_t start, size_t len, size_t *retlen, const u8 *buffer)
+{
+ u8 verify_buffer[FALCON_SPI_MAX_LEN];
+ size_t block_len, pos = 0;
+ unsigned int command;
+ int rc = 0;
+
+ while (pos < len) {
+ rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
+ if (rc)
+ break;
+
+ block_len = min(len - pos,
+ falcon_spi_write_limit(spi, start + pos));
+ command = efx_spi_munge_command(spi, SPI_WRITE, start + pos);
+ rc = falcon_spi_cmd(efx, spi, command, start + pos,
+ buffer + pos, NULL, block_len);
+ if (rc)
+ break;
+
+ rc = falcon_spi_wait_write(efx, spi);
+ if (rc)
+ break;
+
+ command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+ rc = falcon_spi_cmd(efx, spi, command, start + pos,
+ NULL, verify_buffer, block_len);
+ if (memcmp(verify_buffer, buffer + pos, block_len)) {
+ rc = -EIO;
+ break;
+ }
+
+ pos += block_len;
+
+ /* Avoid locking up the system */
+ cond_resched();
+ if (signal_pending(current)) {
+ rc = -EINTR;
+ break;
+ }
+ }
+
+ if (retlen)
+ *retlen = pos;
+ return rc;
+}
+
+/**************************************************************************
+ *
+ * MAC wrapper
+ *
+ **************************************************************************
+ */
+
+static void falcon_push_multicast_hash(struct efx_nic *efx)
+{
+ union efx_multicast_hash *mc_hash = &efx->multicast_hash;
+
+ WARN_ON(!mutex_is_locked(&efx->mac_lock));
+
+ efx_writeo(efx, &mc_hash->oword[0], FR_AB_MAC_MC_HASH_REG0);
+ efx_writeo(efx, &mc_hash->oword[1], FR_AB_MAC_MC_HASH_REG1);
+}
+
+static void falcon_reset_macs(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg, mac_ctrl;
+ int count;
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0) {
+ /* It's not safe to use GLB_CTL_REG to reset the
+ * macs, so instead use the internal MAC resets
+ */
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_CORE_RST, 1);
+ efx_writeo(efx, &reg, FR_AB_XM_GLB_CFG);
+
+ for (count = 0; count < 10000; count++) {
+ efx_reado(efx, &reg, FR_AB_XM_GLB_CFG);
+ if (EFX_OWORD_FIELD(reg, FRF_AB_XM_CORE_RST) ==
+ 0)
+ return;
+ udelay(10);
+ }
+
+ netif_err(efx, hw, efx->net_dev,
+ "timed out waiting for XMAC core reset\n");
+ }
+
+ /* Mac stats will fail whist the TX fifo is draining */
+ WARN_ON(nic_data->stats_disable_count == 0);
+
+ efx_reado(efx, &mac_ctrl, FR_AB_MAC_CTRL);
+ EFX_SET_OWORD_FIELD(mac_ctrl, FRF_BB_TXFIFO_DRAIN_EN, 1);
+ efx_writeo(efx, &mac_ctrl, FR_AB_MAC_CTRL);
+
+ efx_reado(efx, &reg, FR_AB_GLB_CTL);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_RST_XGTX, 1);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_RST_XGRX, 1);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_RST_EM, 1);
+ efx_writeo(efx, &reg, FR_AB_GLB_CTL);
+
+ count = 0;
+ while (1) {
+ efx_reado(efx, &reg, FR_AB_GLB_CTL);
+ if (!EFX_OWORD_FIELD(reg, FRF_AB_RST_XGTX) &&
+ !EFX_OWORD_FIELD(reg, FRF_AB_RST_XGRX) &&
+ !EFX_OWORD_FIELD(reg, FRF_AB_RST_EM)) {
+ netif_dbg(efx, hw, efx->net_dev,
+ "Completed MAC reset after %d loops\n",
+ count);
+ break;
+ }
+ if (count > 20) {
+ netif_err(efx, hw, efx->net_dev, "MAC reset failed\n");
+ break;
+ }
+ count++;
+ udelay(10);
+ }
+
+ /* Ensure the correct MAC is selected before statistics
+ * are re-enabled by the caller */
+ efx_writeo(efx, &mac_ctrl, FR_AB_MAC_CTRL);
+
+ falcon_setup_xaui(efx);
+}
+
+void falcon_drain_tx_fifo(struct efx_nic *efx)
+{
+ efx_oword_t reg;
+
+ if ((efx_nic_rev(efx) < EFX_REV_FALCON_B0) ||
+ (efx->loopback_mode != LOOPBACK_NONE))
+ return;
+
+ efx_reado(efx, &reg, FR_AB_MAC_CTRL);
+ /* There is no point in draining more than once */
+ if (EFX_OWORD_FIELD(reg, FRF_BB_TXFIFO_DRAIN_EN))
+ return;
+
+ falcon_reset_macs(efx);
+}
+
+static void falcon_deconfigure_mac_wrapper(struct efx_nic *efx)
+{
+ efx_oword_t reg;
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return;
+
+ /* Isolate the MAC -> RX */
+ efx_reado(efx, &reg, FR_AZ_RX_CFG);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_INGR_EN, 0);
+ efx_writeo(efx, &reg, FR_AZ_RX_CFG);
+
+ /* Isolate TX -> MAC */
+ falcon_drain_tx_fifo(efx);
+}
+
+void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
+{
+ struct efx_link_state *link_state = &efx->link_state;
+ efx_oword_t reg;
+ int link_speed, isolate;
+
+ isolate = !!ACCESS_ONCE(efx->reset_pending);
+
+ switch (link_state->speed) {
+ case 10000: link_speed = 3; break;
+ case 1000: link_speed = 2; break;
+ case 100: link_speed = 1; break;
+ default: link_speed = 0; break;
+ }
+ /* MAC_LINK_STATUS controls MAC backpressure but doesn't work
+ * as advertised. Disable to ensure packets are not
+ * indefinitely held and TX queue can be flushed at any point
+ * while the link is down. */
+ EFX_POPULATE_OWORD_5(reg,
+ FRF_AB_MAC_XOFF_VAL, 0xffff /* max pause time */,
+ FRF_AB_MAC_BCAD_ACPT, 1,
+ FRF_AB_MAC_UC_PROM, efx->promiscuous,
+ FRF_AB_MAC_LINK_STATUS, 1, /* always set */
+ FRF_AB_MAC_SPEED, link_speed);
+ /* On B0, MAC backpressure can be disabled and packets get
+ * discarded. */
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+ EFX_SET_OWORD_FIELD(reg, FRF_BB_TXFIFO_DRAIN_EN,
+ !link_state->up || isolate);
+ }
+
+ efx_writeo(efx, &reg, FR_AB_MAC_CTRL);
+
+ /* Restore the multicast hash registers. */
+ falcon_push_multicast_hash(efx);
+
+ efx_reado(efx, &reg, FR_AZ_RX_CFG);
+ /* Enable XOFF signal from RX FIFO (we enabled it during NIC
+ * initialisation but it may read back as 0) */
+ EFX_SET_OWORD_FIELD(reg, FRF_AZ_RX_XOFF_MAC_EN, 1);
+ /* Unisolate the MAC -> RX */
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_INGR_EN, !isolate);
+ efx_writeo(efx, &reg, FR_AZ_RX_CFG);
+}
+
+static void falcon_stats_request(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
+
+ WARN_ON(nic_data->stats_pending);
+ WARN_ON(nic_data->stats_disable_count);
+
+ if (nic_data->stats_dma_done == NULL)
+ return; /* no mac selected */
+
+ *nic_data->stats_dma_done = FALCON_STATS_NOT_DONE;
+ nic_data->stats_pending = true;
+ wmb(); /* ensure done flag is clear */
+
+ /* Initiate DMA transfer of stats */
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_MAC_STAT_DMA_CMD, 1,
+ FRF_AB_MAC_STAT_DMA_ADR,
+ efx->stats_buffer.dma_addr);
+ efx_writeo(efx, &reg, FR_AB_MAC_STAT_DMA);
+
+ mod_timer(&nic_data->stats_timer, round_jiffies_up(jiffies + HZ / 2));
+}
+
+static void falcon_stats_complete(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ if (!nic_data->stats_pending)
+ return;
+
+ nic_data->stats_pending = 0;
+ if (*nic_data->stats_dma_done == FALCON_STATS_DONE) {
+ rmb(); /* read the done flag before the stats */
+ efx->mac_op->update_stats(efx);
+ } else {
+ netif_err(efx, hw, efx->net_dev,
+ "timed out waiting for statistics\n");
+ }
+}
+
+static void falcon_stats_timer_func(unsigned long context)
+{
+ struct efx_nic *efx = (struct efx_nic *)context;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ spin_lock(&efx->stats_lock);
+
+ falcon_stats_complete(efx);
+ if (nic_data->stats_disable_count == 0)
+ falcon_stats_request(efx);
+
+ spin_unlock(&efx->stats_lock);
+}
+
+static bool falcon_loopback_link_poll(struct efx_nic *efx)
+{
+ struct efx_link_state old_state = efx->link_state;
+
+ WARN_ON(!mutex_is_locked(&efx->mac_lock));
+ WARN_ON(!LOOPBACK_INTERNAL(efx));
+
+ efx->link_state.fd = true;
+ efx->link_state.fc = efx->wanted_fc;
+ efx->link_state.up = true;
+ efx->link_state.speed = 10000;
+
+ return !efx_link_state_equal(&efx->link_state, &old_state);
+}
+
+static int falcon_reconfigure_port(struct efx_nic *efx)
+{
+ int rc;
+
+ WARN_ON(efx_nic_rev(efx) > EFX_REV_FALCON_B0);
+
+ /* Poll the PHY link state *before* reconfiguring it. This means we
+ * will pick up the correct speed (in loopback) to select the correct
+ * MAC.
+ */
+ if (LOOPBACK_INTERNAL(efx))
+ falcon_loopback_link_poll(efx);
+ else
+ efx->phy_op->poll(efx);
+
+ falcon_stop_nic_stats(efx);
+ falcon_deconfigure_mac_wrapper(efx);
+
+ falcon_reset_macs(efx);
+
+ efx->phy_op->reconfigure(efx);
+ rc = efx->mac_op->reconfigure(efx);
+ BUG_ON(rc);
+
+ falcon_start_nic_stats(efx);
+
+ /* Synchronise efx->link_state with the kernel */
+ efx_link_status_changed(efx);
+
+ return 0;
+}
+
+/**************************************************************************
+ *
+ * PHY access via GMII
+ *
+ **************************************************************************
+ */
+
+/* Wait for GMII access to complete */
+static int falcon_gmii_wait(struct efx_nic *efx)
+{
+ efx_oword_t md_stat;
+ int count;
+
+ /* wait up to 50ms - taken max from datasheet */
+ for (count = 0; count < 5000; count++) {
+ efx_reado(efx, &md_stat, FR_AB_MD_STAT);
+ if (EFX_OWORD_FIELD(md_stat, FRF_AB_MD_BSY) == 0) {
+ if (EFX_OWORD_FIELD(md_stat, FRF_AB_MD_LNFL) != 0 ||
+ EFX_OWORD_FIELD(md_stat, FRF_AB_MD_BSERR) != 0) {
+ netif_err(efx, hw, efx->net_dev,
+ "error from GMII access "
+ EFX_OWORD_FMT"\n",
+ EFX_OWORD_VAL(md_stat));
+ return -EIO;
+ }
+ return 0;
+ }
+ udelay(10);
+ }
+ netif_err(efx, hw, efx->net_dev, "timed out waiting for GMII\n");
+ return -ETIMEDOUT;
+}
+
+/* Write an MDIO register of a PHY connected to Falcon. */
+static int falcon_mdio_write(struct net_device *net_dev,
+ int prtad, int devad, u16 addr, u16 value)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
+ int rc;
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "writing MDIO %d register %d.%d with 0x%04x\n",
+ prtad, devad, addr, value);
+
+ mutex_lock(&nic_data->mdio_lock);
+
+ /* Check MDIO not currently being accessed */
+ rc = falcon_gmii_wait(efx);
+ if (rc)
+ goto out;
+
+ /* Write the address/ID register */
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_MD_PHY_ADR, addr);
+ efx_writeo(efx, &reg, FR_AB_MD_PHY_ADR);
+
+ EFX_POPULATE_OWORD_2(reg, FRF_AB_MD_PRT_ADR, prtad,
+ FRF_AB_MD_DEV_ADR, devad);
+ efx_writeo(efx, &reg, FR_AB_MD_ID);
+
+ /* Write data */
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_MD_TXD, value);
+ efx_writeo(efx, &reg, FR_AB_MD_TXD);
+
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_MD_WRC, 1,
+ FRF_AB_MD_GC, 0);
+ efx_writeo(efx, &reg, FR_AB_MD_CS);
+
+ /* Wait for data to be written */
+ rc = falcon_gmii_wait(efx);
+ if (rc) {
+ /* Abort the write operation */
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_MD_WRC, 0,
+ FRF_AB_MD_GC, 1);
+ efx_writeo(efx, &reg, FR_AB_MD_CS);
+ udelay(10);
+ }
+
+out:
+ mutex_unlock(&nic_data->mdio_lock);
+ return rc;
+}
+
+/* Read an MDIO register of a PHY connected to Falcon. */
+static int falcon_mdio_read(struct net_device *net_dev,
+ int prtad, int devad, u16 addr)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
+ int rc;
+
+ mutex_lock(&nic_data->mdio_lock);
+
+ /* Check MDIO not currently being accessed */
+ rc = falcon_gmii_wait(efx);
+ if (rc)
+ goto out;
+
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_MD_PHY_ADR, addr);
+ efx_writeo(efx, &reg, FR_AB_MD_PHY_ADR);
+
+ EFX_POPULATE_OWORD_2(reg, FRF_AB_MD_PRT_ADR, prtad,
+ FRF_AB_MD_DEV_ADR, devad);
+ efx_writeo(efx, &reg, FR_AB_MD_ID);
+
+ /* Request data to be read */
+ EFX_POPULATE_OWORD_2(reg, FRF_AB_MD_RDC, 1, FRF_AB_MD_GC, 0);
+ efx_writeo(efx, &reg, FR_AB_MD_CS);
+
+ /* Wait for data to become available */
+ rc = falcon_gmii_wait(efx);
+ if (rc == 0) {
+ efx_reado(efx, &reg, FR_AB_MD_RXD);
+ rc = EFX_OWORD_FIELD(reg, FRF_AB_MD_RXD);
+ netif_vdbg(efx, hw, efx->net_dev,
+ "read from MDIO %d register %d.%d, got %04x\n",
+ prtad, devad, addr, rc);
+ } else {
+ /* Abort the read operation */
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_MD_RIC, 0,
+ FRF_AB_MD_GC, 1);
+ efx_writeo(efx, &reg, FR_AB_MD_CS);
+
+ netif_dbg(efx, hw, efx->net_dev,
+ "read from MDIO %d register %d.%d, got error %d\n",
+ prtad, devad, addr, rc);
+ }
+
+out:
+ mutex_unlock(&nic_data->mdio_lock);
+ return rc;
+}
+
+/* This call is responsible for hooking in the MAC and PHY operations */
+static int falcon_probe_port(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ switch (efx->phy_type) {
+ case PHY_TYPE_SFX7101:
+ efx->phy_op = &falcon_sfx7101_phy_ops;
+ break;
+ case PHY_TYPE_QT2022C2:
+ case PHY_TYPE_QT2025C:
+ efx->phy_op = &falcon_qt202x_phy_ops;
+ break;
+ case PHY_TYPE_TXC43128:
+ efx->phy_op = &falcon_txc_phy_ops;
+ break;
+ default:
+ netif_err(efx, probe, efx->net_dev, "Unknown PHY type %d\n",
+ efx->phy_type);
+ return -ENODEV;
+ }
+
+ /* Fill out MDIO structure and loopback modes */
+ mutex_init(&nic_data->mdio_lock);
+ efx->mdio.mdio_read = falcon_mdio_read;
+ efx->mdio.mdio_write = falcon_mdio_write;
+ rc = efx->phy_op->probe(efx);
+ if (rc != 0)
+ return rc;
+
+ /* Initial assumption */
+ efx->link_state.speed = 10000;
+ efx->link_state.fd = true;
+
+ /* Hardware flow ctrl. FalconA RX FIFO too small for pause generation */
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
+ efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
+ else
+ efx->wanted_fc = EFX_FC_RX;
+ if (efx->mdio.mmds & MDIO_DEVS_AN)
+ efx->wanted_fc |= EFX_FC_AUTO;
+
+ /* Allocate buffer for stats */
+ rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer,
+ FALCON_MAC_STATS_SIZE);
+ if (rc)
+ return rc;
+ netif_dbg(efx, probe, efx->net_dev,
+ "stats buffer at %llx (virt %p phys %llx)\n",
+ (u64)efx->stats_buffer.dma_addr,
+ efx->stats_buffer.addr,
+ (u64)virt_to_phys(efx->stats_buffer.addr));
+ nic_data->stats_dma_done = efx->stats_buffer.addr + XgDmaDone_offset;
+
+ return 0;
+}
+
+static void falcon_remove_port(struct efx_nic *efx)
+{
+ efx->phy_op->remove(efx);
+ efx_nic_free_buffer(efx, &efx->stats_buffer);
+}
+
+/* Global events are basically PHY events */
+static bool
+falcon_handle_global_event(struct efx_channel *channel, efx_qword_t *event)
+{
+ struct efx_nic *efx = channel->efx;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ if (EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_G_PHY0_INTR) ||
+ EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_XG_PHY0_INTR) ||
+ EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_XFP_PHY0_INTR))
+ /* Ignored */
+ return true;
+
+ if ((efx_nic_rev(efx) == EFX_REV_FALCON_B0) &&
+ EFX_QWORD_FIELD(*event, FSF_BB_GLB_EV_XG_MGT_INTR)) {
+ nic_data->xmac_poll_required = true;
+ return true;
+ }
+
+ if (efx_nic_rev(efx) <= EFX_REV_FALCON_A1 ?
+ EFX_QWORD_FIELD(*event, FSF_AA_GLB_EV_RX_RECOVERY) :
+ EFX_QWORD_FIELD(*event, FSF_BB_GLB_EV_RX_RECOVERY)) {
+ netif_err(efx, rx_err, efx->net_dev,
+ "channel %d seen global RX_RESET event. Resetting.\n",
+ channel->channel);
+
+ atomic_inc(&efx->rx_reset);
+ efx_schedule_reset(efx, EFX_WORKAROUND_6555(efx) ?
+ RESET_TYPE_RX_RECOVERY : RESET_TYPE_DISABLE);
+ return true;
+ }
+
+ return false;
+}
+
+/**************************************************************************
+ *
+ * Falcon test code
+ *
+ **************************************************************************/
+
+static int
+falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ struct falcon_nvconfig *nvconfig;
+ struct efx_spi_device *spi;
+ void *region;
+ int rc, magic_num, struct_ver;
+ __le16 *word, *limit;
+ u32 csum;
+
+ if (efx_spi_present(&nic_data->spi_flash))
+ spi = &nic_data->spi_flash;
+ else if (efx_spi_present(&nic_data->spi_eeprom))
+ spi = &nic_data->spi_eeprom;
+ else
+ return -EINVAL;
+
+ region = kmalloc(FALCON_NVCONFIG_END, GFP_KERNEL);
+ if (!region)
+ return -ENOMEM;
+ nvconfig = region + FALCON_NVCONFIG_OFFSET;
+
+ mutex_lock(&nic_data->spi_lock);
+ rc = falcon_spi_read(efx, spi, 0, FALCON_NVCONFIG_END, NULL, region);
+ mutex_unlock(&nic_data->spi_lock);
+ if (rc) {
+ netif_err(efx, hw, efx->net_dev, "Failed to read %s\n",
+ efx_spi_present(&nic_data->spi_flash) ?
+ "flash" : "EEPROM");
+ rc = -EIO;
+ goto out;
+ }
+
+ magic_num = le16_to_cpu(nvconfig->board_magic_num);
+ struct_ver = le16_to_cpu(nvconfig->board_struct_ver);
+
+ rc = -EINVAL;
+ if (magic_num != FALCON_NVCONFIG_BOARD_MAGIC_NUM) {
+ netif_err(efx, hw, efx->net_dev,
+ "NVRAM bad magic 0x%x\n", magic_num);
+ goto out;
+ }
+ if (struct_ver < 2) {
+ netif_err(efx, hw, efx->net_dev,
+ "NVRAM has ancient version 0x%x\n", struct_ver);
+ goto out;
+ } else if (struct_ver < 4) {
+ word = &nvconfig->board_magic_num;
+ limit = (__le16 *) (nvconfig + 1);
+ } else {
+ word = region;
+ limit = region + FALCON_NVCONFIG_END;
+ }
+ for (csum = 0; word < limit; ++word)
+ csum += le16_to_cpu(*word);
+
+ if (~csum & 0xffff) {
+ netif_err(efx, hw, efx->net_dev,
+ "NVRAM has incorrect checksum\n");
+ goto out;
+ }
+
+ rc = 0;
+ if (nvconfig_out)
+ memcpy(nvconfig_out, nvconfig, sizeof(*nvconfig));
+
+ out:
+ kfree(region);
+ return rc;
+}
+
+static int falcon_test_nvram(struct efx_nic *efx)
+{
+ return falcon_read_nvram(efx, NULL);
+}
+
+static const struct efx_nic_register_test falcon_b0_register_tests[] = {
+ { FR_AZ_ADR_REGION,
+ EFX_OWORD32(0x0003FFFF, 0x0003FFFF, 0x0003FFFF, 0x0003FFFF) },
+ { FR_AZ_RX_CFG,
+ EFX_OWORD32(0xFFFFFFFE, 0x00017FFF, 0x00000000, 0x00000000) },
+ { FR_AZ_TX_CFG,
+ EFX_OWORD32(0x7FFF0037, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AZ_TX_RESERVED,
+ EFX_OWORD32(0xFFFEFE80, 0x1FFFFFFF, 0x020000FE, 0x007FFFFF) },
+ { FR_AB_MAC_CTRL,
+ EFX_OWORD32(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AZ_SRM_TX_DC_CFG,
+ EFX_OWORD32(0x001FFFFF, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AZ_RX_DC_CFG,
+ EFX_OWORD32(0x0000000F, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AZ_RX_DC_PF_WM,
+ EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_BZ_DP_CTRL,
+ EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_GM_CFG2,
+ EFX_OWORD32(0x00007337, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_GMF_CFG0,
+ EFX_OWORD32(0x00001F1F, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_GLB_CFG,
+ EFX_OWORD32(0x00000C68, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_TX_CFG,
+ EFX_OWORD32(0x00080164, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_RX_CFG,
+ EFX_OWORD32(0x07100A0C, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_RX_PARAM,
+ EFX_OWORD32(0x00001FF8, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_FC,
+ EFX_OWORD32(0xFFFF0001, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XM_ADR_LO,
+ EFX_OWORD32(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000) },
+ { FR_AB_XX_SD_CTL,
+ EFX_OWORD32(0x0003FF0F, 0x00000000, 0x00000000, 0x00000000) },
+};
+
+static int falcon_b0_test_registers(struct efx_nic *efx)
+{
+ return efx_nic_test_registers(efx, falcon_b0_register_tests,
+ ARRAY_SIZE(falcon_b0_register_tests));
+}
+
+/**************************************************************************
+ *
+ * Device reset
+ *
+ **************************************************************************
+ */
+
+static enum reset_type falcon_map_reset_reason(enum reset_type reason)
+{
+ switch (reason) {
+ case RESET_TYPE_RX_RECOVERY:
+ case RESET_TYPE_RX_DESC_FETCH:
+ case RESET_TYPE_TX_DESC_FETCH:
+ case RESET_TYPE_TX_SKIP:
+ /* These can occasionally occur due to hardware bugs.
+ * We try to reset without disrupting the link.
+ */
+ return RESET_TYPE_INVISIBLE;
+ default:
+ return RESET_TYPE_ALL;
+ }
+}
+
+static int falcon_map_reset_flags(u32 *flags)
+{
+ enum {
+ FALCON_RESET_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
+ ETH_RESET_OFFLOAD | ETH_RESET_MAC),
+ FALCON_RESET_ALL = FALCON_RESET_INVISIBLE | ETH_RESET_PHY,
+ FALCON_RESET_WORLD = FALCON_RESET_ALL | ETH_RESET_IRQ,
+ };
+
+ if ((*flags & FALCON_RESET_WORLD) == FALCON_RESET_WORLD) {
+ *flags &= ~FALCON_RESET_WORLD;
+ return RESET_TYPE_WORLD;
+ }
+
+ if ((*flags & FALCON_RESET_ALL) == FALCON_RESET_ALL) {
+ *flags &= ~FALCON_RESET_ALL;
+ return RESET_TYPE_ALL;
+ }
+
+ if ((*flags & FALCON_RESET_INVISIBLE) == FALCON_RESET_INVISIBLE) {
+ *flags &= ~FALCON_RESET_INVISIBLE;
+ return RESET_TYPE_INVISIBLE;
+ }
+
+ return -EINVAL;
+}
+
+/* Resets NIC to known state. This routine must be called in process
+ * context and is allowed to sleep. */
+static int __falcon_reset_hw(struct efx_nic *efx, enum reset_type method)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t glb_ctl_reg_ker;
+ int rc;
+
+ netif_dbg(efx, hw, efx->net_dev, "performing %s hardware reset\n",
+ RESET_TYPE(method));
+
+ /* Initiate device reset */
+ if (method == RESET_TYPE_WORLD) {
+ rc = pci_save_state(efx->pci_dev);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed to backup PCI state of primary "
+ "function prior to hardware reset\n");
+ goto fail1;
+ }
+ if (efx_nic_is_dual_func(efx)) {
+ rc = pci_save_state(nic_data->pci_dev2);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed to backup PCI state of "
+ "secondary function prior to "
+ "hardware reset\n");
+ goto fail2;
+ }
+ }
+
+ EFX_POPULATE_OWORD_2(glb_ctl_reg_ker,
+ FRF_AB_EXT_PHY_RST_DUR,
+ FFE_AB_EXT_PHY_RST_DUR_10240US,
+ FRF_AB_SWRST, 1);
+ } else {
+ EFX_POPULATE_OWORD_7(glb_ctl_reg_ker,
+ /* exclude PHY from "invisible" reset */
+ FRF_AB_EXT_PHY_RST_CTL,
+ method == RESET_TYPE_INVISIBLE,
+ /* exclude EEPROM/flash and PCIe */
+ FRF_AB_PCIE_CORE_RST_CTL, 1,
+ FRF_AB_PCIE_NSTKY_RST_CTL, 1,
+ FRF_AB_PCIE_SD_RST_CTL, 1,
+ FRF_AB_EE_RST_CTL, 1,
+ FRF_AB_EXT_PHY_RST_DUR,
+ FFE_AB_EXT_PHY_RST_DUR_10240US,
+ FRF_AB_SWRST, 1);
+ }
+ efx_writeo(efx, &glb_ctl_reg_ker, FR_AB_GLB_CTL);
+
+ netif_dbg(efx, hw, efx->net_dev, "waiting for hardware reset\n");
+ schedule_timeout_uninterruptible(HZ / 20);
+
+ /* Restore PCI configuration if needed */
+ if (method == RESET_TYPE_WORLD) {
+ if (efx_nic_is_dual_func(efx))
+ pci_restore_state(nic_data->pci_dev2);
+ pci_restore_state(efx->pci_dev);
+ netif_dbg(efx, drv, efx->net_dev,
+ "successfully restored PCI config\n");
+ }
+
+ /* Assert that reset complete */
+ efx_reado(efx, &glb_ctl_reg_ker, FR_AB_GLB_CTL);
+ if (EFX_OWORD_FIELD(glb_ctl_reg_ker, FRF_AB_SWRST) != 0) {
+ rc = -ETIMEDOUT;
+ netif_err(efx, hw, efx->net_dev,
+ "timed out waiting for hardware reset\n");
+ goto fail3;
+ }
+ netif_dbg(efx, hw, efx->net_dev, "hardware reset complete\n");
+
+ return 0;
+
+ /* pci_save_state() and pci_restore_state() MUST be called in pairs */
+fail2:
+ pci_restore_state(efx->pci_dev);
+fail1:
+fail3:
+ return rc;
+}
+
+static int falcon_reset_hw(struct efx_nic *efx, enum reset_type method)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ mutex_lock(&nic_data->spi_lock);
+ rc = __falcon_reset_hw(efx, method);
+ mutex_unlock(&nic_data->spi_lock);
+
+ return rc;
+}
+
+static void falcon_monitor(struct efx_nic *efx)
+{
+ bool link_changed;
+ int rc;
+
+ BUG_ON(!mutex_is_locked(&efx->mac_lock));
+
+ rc = falcon_board(efx)->type->monitor(efx);
+ if (rc) {
+ netif_err(efx, hw, efx->net_dev,
+ "Board sensor %s; shutting down PHY\n",
+ (rc == -ERANGE) ? "reported fault" : "failed");
+ efx->phy_mode |= PHY_MODE_LOW_POWER;
+ rc = __efx_reconfigure_port(efx);
+ WARN_ON(rc);
+ }
+
+ if (LOOPBACK_INTERNAL(efx))
+ link_changed = falcon_loopback_link_poll(efx);
+ else
+ link_changed = efx->phy_op->poll(efx);
+
+ if (link_changed) {
+ falcon_stop_nic_stats(efx);
+ falcon_deconfigure_mac_wrapper(efx);
+
+ falcon_reset_macs(efx);
+ rc = efx->mac_op->reconfigure(efx);
+ BUG_ON(rc);
+
+ falcon_start_nic_stats(efx);
+
+ efx_link_status_changed(efx);
+ }
+
+ falcon_poll_xmac(efx);
+}
+
+/* Zeroes out the SRAM contents. This routine must be called in
+ * process context and is allowed to sleep.
+ */
+static int falcon_reset_sram(struct efx_nic *efx)
+{
+ efx_oword_t srm_cfg_reg_ker, gpio_cfg_reg_ker;
+ int count;
+
+ /* Set the SRAM wake/sleep GPIO appropriately. */
+ efx_reado(efx, &gpio_cfg_reg_ker, FR_AB_GPIO_CTL);
+ EFX_SET_OWORD_FIELD(gpio_cfg_reg_ker, FRF_AB_GPIO1_OEN, 1);
+ EFX_SET_OWORD_FIELD(gpio_cfg_reg_ker, FRF_AB_GPIO1_OUT, 1);
+ efx_writeo(efx, &gpio_cfg_reg_ker, FR_AB_GPIO_CTL);
+
+ /* Initiate SRAM reset */
+ EFX_POPULATE_OWORD_2(srm_cfg_reg_ker,
+ FRF_AZ_SRM_INIT_EN, 1,
+ FRF_AZ_SRM_NB_SZ, 0);
+ efx_writeo(efx, &srm_cfg_reg_ker, FR_AZ_SRM_CFG);
+
+ /* Wait for SRAM reset to complete */
+ count = 0;
+ do {
+ netif_dbg(efx, hw, efx->net_dev,
+ "waiting for SRAM reset (attempt %d)...\n", count);
+
+ /* SRAM reset is slow; expect around 16ms */
+ schedule_timeout_uninterruptible(HZ / 50);
+
+ /* Check for reset complete */
+ efx_reado(efx, &srm_cfg_reg_ker, FR_AZ_SRM_CFG);
+ if (!EFX_OWORD_FIELD(srm_cfg_reg_ker, FRF_AZ_SRM_INIT_EN)) {
+ netif_dbg(efx, hw, efx->net_dev,
+ "SRAM reset complete\n");
+
+ return 0;
+ }
+ } while (++count < 20); /* wait up to 0.4 sec */
+
+ netif_err(efx, hw, efx->net_dev, "timed out waiting for SRAM reset\n");
+ return -ETIMEDOUT;
+}
+
+static void falcon_spi_device_init(struct efx_nic *efx,
+ struct efx_spi_device *spi_device,
+ unsigned int device_id, u32 device_type)
+{
+ if (device_type != 0) {
+ spi_device->device_id = device_id;
+ spi_device->size =
+ 1 << SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_SIZE);
+ spi_device->addr_len =
+ SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_ADDR_LEN);
+ spi_device->munge_address = (spi_device->size == 1 << 9 &&
+ spi_device->addr_len == 1);
+ spi_device->erase_command =
+ SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_ERASE_CMD);
+ spi_device->erase_size =
+ 1 << SPI_DEV_TYPE_FIELD(device_type,
+ SPI_DEV_TYPE_ERASE_SIZE);
+ spi_device->block_size =
+ 1 << SPI_DEV_TYPE_FIELD(device_type,
+ SPI_DEV_TYPE_BLOCK_SIZE);
+ } else {
+ spi_device->size = 0;
+ }
+}
+
+/* Extract non-volatile configuration */
+static int falcon_probe_nvconfig(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ struct falcon_nvconfig *nvconfig;
+ int rc;
+
+ nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
+ if (!nvconfig)
+ return -ENOMEM;
+
+ rc = falcon_read_nvram(efx, nvconfig);
+ if (rc)
+ goto out;
+
+ efx->phy_type = nvconfig->board_v2.port0_phy_type;
+ efx->mdio.prtad = nvconfig->board_v2.port0_phy_addr;
+
+ if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
+ falcon_spi_device_init(
+ efx, &nic_data->spi_flash, FFE_AB_SPI_DEVICE_FLASH,
+ le32_to_cpu(nvconfig->board_v3
+ .spi_device_type[FFE_AB_SPI_DEVICE_FLASH]));
+ falcon_spi_device_init(
+ efx, &nic_data->spi_eeprom, FFE_AB_SPI_DEVICE_EEPROM,
+ le32_to_cpu(nvconfig->board_v3
+ .spi_device_type[FFE_AB_SPI_DEVICE_EEPROM]));
+ }
+
+ /* Read the MAC addresses */
+ memcpy(efx->net_dev->perm_addr, nvconfig->mac_address[0], ETH_ALEN);
+
+ netif_dbg(efx, probe, efx->net_dev, "PHY is %d phy_id %d\n",
+ efx->phy_type, efx->mdio.prtad);
+
+ rc = falcon_probe_board(efx,
+ le16_to_cpu(nvconfig->board_v2.board_revision));
+out:
+ kfree(nvconfig);
+ return rc;
+}
+
+/* Probe all SPI devices on the NIC */
+static void falcon_probe_spi_devices(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t nic_stat, gpio_ctl, ee_vpd_cfg;
+ int boot_dev;
+
+ efx_reado(efx, &gpio_ctl, FR_AB_GPIO_CTL);
+ efx_reado(efx, &nic_stat, FR_AB_NIC_STAT);
+ efx_reado(efx, &ee_vpd_cfg, FR_AB_EE_VPD_CFG0);
+
+ if (EFX_OWORD_FIELD(gpio_ctl, FRF_AB_GPIO3_PWRUP_VALUE)) {
+ boot_dev = (EFX_OWORD_FIELD(nic_stat, FRF_AB_SF_PRST) ?
+ FFE_AB_SPI_DEVICE_FLASH : FFE_AB_SPI_DEVICE_EEPROM);
+ netif_dbg(efx, probe, efx->net_dev, "Booted from %s\n",
+ boot_dev == FFE_AB_SPI_DEVICE_FLASH ?
+ "flash" : "EEPROM");
+ } else {
+ /* Disable VPD and set clock dividers to safe
+ * values for initial programming. */
+ boot_dev = -1;
+ netif_dbg(efx, probe, efx->net_dev,
+ "Booted from internal ASIC settings;"
+ " setting SPI config\n");
+ EFX_POPULATE_OWORD_3(ee_vpd_cfg, FRF_AB_EE_VPD_EN, 0,
+ /* 125 MHz / 7 ~= 20 MHz */
+ FRF_AB_EE_SF_CLOCK_DIV, 7,
+ /* 125 MHz / 63 ~= 2 MHz */
+ FRF_AB_EE_EE_CLOCK_DIV, 63);
+ efx_writeo(efx, &ee_vpd_cfg, FR_AB_EE_VPD_CFG0);
+ }
+
+ mutex_init(&nic_data->spi_lock);
+
+ if (boot_dev == FFE_AB_SPI_DEVICE_FLASH)
+ falcon_spi_device_init(efx, &nic_data->spi_flash,
+ FFE_AB_SPI_DEVICE_FLASH,
+ default_flash_type);
+ if (boot_dev == FFE_AB_SPI_DEVICE_EEPROM)
+ falcon_spi_device_init(efx, &nic_data->spi_eeprom,
+ FFE_AB_SPI_DEVICE_EEPROM,
+ large_eeprom_type);
+}
+
+static int falcon_probe_nic(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data;
+ struct falcon_board *board;
+ int rc;
+
+ /* Allocate storage for hardware specific data */
+ nic_data = kzalloc(sizeof(*nic_data), GFP_KERNEL);
+ if (!nic_data)
+ return -ENOMEM;
+ efx->nic_data = nic_data;
+
+ rc = -ENODEV;
+
+ if (efx_nic_fpga_ver(efx) != 0) {
+ netif_err(efx, probe, efx->net_dev,
+ "Falcon FPGA not supported\n");
+ goto fail1;
+ }
+
+ if (efx_nic_rev(efx) <= EFX_REV_FALCON_A1) {
+ efx_oword_t nic_stat;
+ struct pci_dev *dev;
+ u8 pci_rev = efx->pci_dev->revision;
+
+ if ((pci_rev == 0xff) || (pci_rev == 0)) {
+ netif_err(efx, probe, efx->net_dev,
+ "Falcon rev A0 not supported\n");
+ goto fail1;
+ }
+ efx_reado(efx, &nic_stat, FR_AB_NIC_STAT);
+ if (EFX_OWORD_FIELD(nic_stat, FRF_AB_STRAP_10G) == 0) {
+ netif_err(efx, probe, efx->net_dev,
+ "Falcon rev A1 1G not supported\n");
+ goto fail1;
+ }
+ if (EFX_OWORD_FIELD(nic_stat, FRF_AA_STRAP_PCIE) == 0) {
+ netif_err(efx, probe, efx->net_dev,
+ "Falcon rev A1 PCI-X not supported\n");
+ goto fail1;
+ }
+
+ dev = pci_dev_get(efx->pci_dev);
+ while ((dev = pci_get_device(EFX_VENDID_SFC, FALCON_A_S_DEVID,
+ dev))) {
+ if (dev->bus == efx->pci_dev->bus &&
+ dev->devfn == efx->pci_dev->devfn + 1) {
+ nic_data->pci_dev2 = dev;
+ break;
+ }
+ }
+ if (!nic_data->pci_dev2) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to find secondary function\n");
+ rc = -ENODEV;
+ goto fail2;
+ }
+ }
+
+ /* Now we can reset the NIC */
+ rc = __falcon_reset_hw(efx, RESET_TYPE_ALL);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev, "failed to reset NIC\n");
+ goto fail3;
+ }
+
+ /* Allocate memory for INT_KER */
+ rc = efx_nic_alloc_buffer(efx, &efx->irq_status, sizeof(efx_oword_t));
+ if (rc)
+ goto fail4;
+ BUG_ON(efx->irq_status.dma_addr & 0x0f);
+
+ netif_dbg(efx, probe, efx->net_dev,
+ "INT_KER at %llx (virt %p phys %llx)\n",
+ (u64)efx->irq_status.dma_addr,
+ efx->irq_status.addr,
+ (u64)virt_to_phys(efx->irq_status.addr));
+
+ falcon_probe_spi_devices(efx);
+
+ /* Read in the non-volatile configuration */
+ rc = falcon_probe_nvconfig(efx);
+ if (rc) {
+ if (rc == -EINVAL)
+ netif_err(efx, probe, efx->net_dev, "NVRAM is invalid\n");
+ goto fail5;
+ }
+
+ /* Initialise I2C adapter */
+ board = falcon_board(efx);
+ board->i2c_adap.owner = THIS_MODULE;
+ board->i2c_data = falcon_i2c_bit_operations;
+ board->i2c_data.data = efx;
+ board->i2c_adap.algo_data = &board->i2c_data;
+ board->i2c_adap.dev.parent = &efx->pci_dev->dev;
+ strlcpy(board->i2c_adap.name, "SFC4000 GPIO",
+ sizeof(board->i2c_adap.name));
+ rc = i2c_bit_add_bus(&board->i2c_adap);
+ if (rc)
+ goto fail5;
+
+ rc = falcon_board(efx)->type->init(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev,
+ "failed to initialise board\n");
+ goto fail6;
+ }
+
+ nic_data->stats_disable_count = 1;
+ setup_timer(&nic_data->stats_timer, &falcon_stats_timer_func,
+ (unsigned long)efx);
+
+ return 0;
+
+ fail6:
+ BUG_ON(i2c_del_adapter(&board->i2c_adap));
+ memset(&board->i2c_adap, 0, sizeof(board->i2c_adap));
+ fail5:
+ efx_nic_free_buffer(efx, &efx->irq_status);
+ fail4:
+ fail3:
+ if (nic_data->pci_dev2) {
+ pci_dev_put(nic_data->pci_dev2);
+ nic_data->pci_dev2 = NULL;
+ }
+ fail2:
+ fail1:
+ kfree(efx->nic_data);
+ return rc;
+}
+
+static void falcon_init_rx_cfg(struct efx_nic *efx)
+{
+ /* Prior to Siena the RX DMA engine will split each frame at
+ * intervals of RX_USR_BUF_SIZE (32-byte units). We set it to
+ * be so large that that never happens. */
+ const unsigned huge_buf_size = (3 * 4096) >> 5;
+ /* RX control FIFO thresholds (32 entries) */
+ const unsigned ctrl_xon_thr = 20;
+ const unsigned ctrl_xoff_thr = 25;
+ efx_oword_t reg;
+
+ efx_reado(efx, &reg, FR_AZ_RX_CFG);
+ if (efx_nic_rev(efx) <= EFX_REV_FALCON_A1) {
+ /* Data FIFO size is 5.5K */
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_DESC_PUSH_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_USR_BUF_SIZE,
+ huge_buf_size);
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_XON_MAC_TH, 512 >> 8);
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_XOFF_MAC_TH, 2048 >> 8);
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_XON_TX_TH, ctrl_xon_thr);
+ EFX_SET_OWORD_FIELD(reg, FRF_AA_RX_XOFF_TX_TH, ctrl_xoff_thr);
+ } else {
+ /* Data FIFO size is 80K; register fields moved */
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_DESC_PUSH_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_USR_BUF_SIZE,
+ huge_buf_size);
+ /* Send XON and XOFF at ~3 * max MTU away from empty/full */
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XON_MAC_TH, 27648 >> 8);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XOFF_MAC_TH, 54272 >> 8);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XON_TX_TH, ctrl_xon_thr);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XOFF_TX_TH, ctrl_xoff_thr);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_INGR_EN, 1);
+
+ /* Enable hash insertion. This is broken for the
+ * 'Falcon' hash so also select Toeplitz TCP/IPv4 and
+ * IPv4 hashes. */
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_HASH_INSRT_HDR, 1);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_HASH_ALG, 1);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_IP_HASH, 1);
+ }
+ /* Always enable XOFF signal from RX FIFO. We enable
+ * or disable transmission of pause frames at the MAC. */
+ EFX_SET_OWORD_FIELD(reg, FRF_AZ_RX_XOFF_MAC_EN, 1);
+ efx_writeo(efx, &reg, FR_AZ_RX_CFG);
+}
+
+/* This call performs hardware-specific global initialisation, such as
+ * defining the descriptor cache sizes and number of RSS channels.
+ * It does not set up any buffers, descriptor rings or event queues.
+ */
+static int falcon_init_nic(struct efx_nic *efx)
+{
+ efx_oword_t temp;
+ int rc;
+
+ /* Use on-chip SRAM */
+ efx_reado(efx, &temp, FR_AB_NIC_STAT);
+ EFX_SET_OWORD_FIELD(temp, FRF_AB_ONCHIP_SRAM, 1);
+ efx_writeo(efx, &temp, FR_AB_NIC_STAT);
+
+ rc = falcon_reset_sram(efx);
+ if (rc)
+ return rc;
+
+ /* Clear the parity enables on the TX data fifos as
+ * they produce false parity errors because of timing issues
+ */
+ if (EFX_WORKAROUND_5129(efx)) {
+ efx_reado(efx, &temp, FR_AZ_CSR_SPARE);
+ EFX_SET_OWORD_FIELD(temp, FRF_AB_MEM_PERR_EN_TX_DATA, 0);
+ efx_writeo(efx, &temp, FR_AZ_CSR_SPARE);
+ }
+
+ if (EFX_WORKAROUND_7244(efx)) {
+ efx_reado(efx, &temp, FR_BZ_RX_FILTER_CTL);
+ EFX_SET_OWORD_FIELD(temp, FRF_BZ_UDP_FULL_SRCH_LIMIT, 8);
+ EFX_SET_OWORD_FIELD(temp, FRF_BZ_UDP_WILD_SRCH_LIMIT, 8);
+ EFX_SET_OWORD_FIELD(temp, FRF_BZ_TCP_FULL_SRCH_LIMIT, 8);
+ EFX_SET_OWORD_FIELD(temp, FRF_BZ_TCP_WILD_SRCH_LIMIT, 8);
+ efx_writeo(efx, &temp, FR_BZ_RX_FILTER_CTL);
+ }
+
+ /* XXX This is documented only for Falcon A0/A1 */
+ /* Setup RX. Wait for descriptor is broken and must
+ * be disabled. RXDP recovery shouldn't be needed, but is.
+ */
+ efx_reado(efx, &temp, FR_AA_RX_SELF_RST);
+ EFX_SET_OWORD_FIELD(temp, FRF_AA_RX_NODESC_WAIT_DIS, 1);
+ EFX_SET_OWORD_FIELD(temp, FRF_AA_RX_SELF_RST_EN, 1);
+ if (EFX_WORKAROUND_5583(efx))
+ EFX_SET_OWORD_FIELD(temp, FRF_AA_RX_ISCSI_DIS, 1);
+ efx_writeo(efx, &temp, FR_AA_RX_SELF_RST);
+
+ /* Do not enable TX_NO_EOP_DISC_EN, since it limits packets to 16
+ * descriptors (which is bad).
+ */
+ efx_reado(efx, &temp, FR_AZ_TX_CFG);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_NO_EOP_DISC_EN, 0);
+ efx_writeo(efx, &temp, FR_AZ_TX_CFG);
+
+ falcon_init_rx_cfg(efx);
+
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+ /* Set hash key for IPv4 */
+ memcpy(&temp, efx->rx_hash_key, sizeof(temp));
+ efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY);
+
+ /* Set destination of both TX and RX Flush events */
+ EFX_POPULATE_OWORD_1(temp, FRF_BZ_FLS_EVQ_ID, 0);
+ efx_writeo(efx, &temp, FR_BZ_DP_CTRL);
+ }
+
+ efx_nic_init_common(efx);
+
+ return 0;
+}
+
+static void falcon_remove_nic(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ struct falcon_board *board = falcon_board(efx);
+ int rc;
+
+ board->type->fini(efx);
+
+ /* Remove I2C adapter and clear it in preparation for a retry */
+ rc = i2c_del_adapter(&board->i2c_adap);
+ BUG_ON(rc);
+ memset(&board->i2c_adap, 0, sizeof(board->i2c_adap));
+
+ efx_nic_free_buffer(efx, &efx->irq_status);
+
+ __falcon_reset_hw(efx, RESET_TYPE_ALL);
+
+ /* Release the second function after the reset */
+ if (nic_data->pci_dev2) {
+ pci_dev_put(nic_data->pci_dev2);
+ nic_data->pci_dev2 = NULL;
+ }
+
+ /* Tear down the private nic state */
+ kfree(efx->nic_data);
+ efx->nic_data = NULL;
+}
+
+static void falcon_update_nic_stats(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t cnt;
+
+ if (nic_data->stats_disable_count)
+ return;
+
+ efx_reado(efx, &cnt, FR_AZ_RX_NODESC_DROP);
+ efx->n_rx_nodesc_drop_cnt +=
+ EFX_OWORD_FIELD(cnt, FRF_AB_RX_NODESC_DROP_CNT);
+
+ if (nic_data->stats_pending &&
+ *nic_data->stats_dma_done == FALCON_STATS_DONE) {
+ nic_data->stats_pending = false;
+ rmb(); /* read the done flag before the stats */
+ efx->mac_op->update_stats(efx);
+ }
+}
+
+void falcon_start_nic_stats(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ spin_lock_bh(&efx->stats_lock);
+ if (--nic_data->stats_disable_count == 0)
+ falcon_stats_request(efx);
+ spin_unlock_bh(&efx->stats_lock);
+}
+
+void falcon_stop_nic_stats(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int i;
+
+ might_sleep();
+
+ spin_lock_bh(&efx->stats_lock);
+ ++nic_data->stats_disable_count;
+ spin_unlock_bh(&efx->stats_lock);
+
+ del_timer_sync(&nic_data->stats_timer);
+
+ /* Wait enough time for the most recent transfer to
+ * complete. */
+ for (i = 0; i < 4 && nic_data->stats_pending; i++) {
+ if (*nic_data->stats_dma_done == FALCON_STATS_DONE)
+ break;
+ msleep(1);
+ }
+
+ spin_lock_bh(&efx->stats_lock);
+ falcon_stats_complete(efx);
+ spin_unlock_bh(&efx->stats_lock);
+}
+
+static void falcon_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
+{
+ falcon_board(efx)->type->set_id_led(efx, mode);
+}
+
+/**************************************************************************
+ *
+ * Wake on LAN
+ *
+ **************************************************************************
+ */
+
+static void falcon_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol)
+{
+ wol->supported = 0;
+ wol->wolopts = 0;
+ memset(&wol->sopass, 0, sizeof(wol->sopass));
+}
+
+static int falcon_set_wol(struct efx_nic *efx, u32 type)
+{
+ if (type != 0)
+ return -EINVAL;
+ return 0;
+}
+
+/**************************************************************************
+ *
+ * Revision-dependent attributes used by efx.c and nic.c
+ *
+ **************************************************************************
+ */
+
+const struct efx_nic_type falcon_a1_nic_type = {
+ .probe = falcon_probe_nic,
+ .remove = falcon_remove_nic,
+ .init = falcon_init_nic,
+ .fini = efx_port_dummy_op_void,
+ .monitor = falcon_monitor,
+ .map_reset_reason = falcon_map_reset_reason,
+ .map_reset_flags = falcon_map_reset_flags,
+ .reset = falcon_reset_hw,
+ .probe_port = falcon_probe_port,
+ .remove_port = falcon_remove_port,
+ .handle_global_event = falcon_handle_global_event,
+ .prepare_flush = falcon_prepare_flush,
+ .update_stats = falcon_update_nic_stats,
+ .start_stats = falcon_start_nic_stats,
+ .stop_stats = falcon_stop_nic_stats,
+ .set_id_led = falcon_set_id_led,
+ .push_irq_moderation = falcon_push_irq_moderation,
+ .push_multicast_hash = falcon_push_multicast_hash,
+ .reconfigure_port = falcon_reconfigure_port,
+ .get_wol = falcon_get_wol,
+ .set_wol = falcon_set_wol,
+ .resume_wol = efx_port_dummy_op_void,
+ .test_nvram = falcon_test_nvram,
+ .default_mac_ops = &falcon_xmac_operations,
+
+ .revision = EFX_REV_FALCON_A1,
+ .mem_map_size = 0x20000,
+ .txd_ptr_tbl_base = FR_AA_TX_DESC_PTR_TBL_KER,
+ .rxd_ptr_tbl_base = FR_AA_RX_DESC_PTR_TBL_KER,
+ .buf_tbl_base = FR_AA_BUF_FULL_TBL_KER,
+ .evq_ptr_tbl_base = FR_AA_EVQ_PTR_TBL_KER,
+ .evq_rptr_tbl_base = FR_AA_EVQ_RPTR_KER,
+ .max_dma_mask = DMA_BIT_MASK(FSF_AZ_TX_KER_BUF_ADDR_WIDTH),
+ .rx_buffer_padding = 0x24,
+ .max_interrupt_mode = EFX_INT_MODE_MSI,
+ .phys_addr_channels = 4,
+ .tx_dc_base = 0x130000,
+ .rx_dc_base = 0x100000,
+ .offload_features = NETIF_F_IP_CSUM,
+};
+
+const struct efx_nic_type falcon_b0_nic_type = {
+ .probe = falcon_probe_nic,
+ .remove = falcon_remove_nic,
+ .init = falcon_init_nic,
+ .fini = efx_port_dummy_op_void,
+ .monitor = falcon_monitor,
+ .map_reset_reason = falcon_map_reset_reason,
+ .map_reset_flags = falcon_map_reset_flags,
+ .reset = falcon_reset_hw,
+ .probe_port = falcon_probe_port,
+ .remove_port = falcon_remove_port,
+ .handle_global_event = falcon_handle_global_event,
+ .prepare_flush = falcon_prepare_flush,
+ .update_stats = falcon_update_nic_stats,
+ .start_stats = falcon_start_nic_stats,
+ .stop_stats = falcon_stop_nic_stats,
+ .set_id_led = falcon_set_id_led,
+ .push_irq_moderation = falcon_push_irq_moderation,
+ .push_multicast_hash = falcon_push_multicast_hash,
+ .reconfigure_port = falcon_reconfigure_port,
+ .get_wol = falcon_get_wol,
+ .set_wol = falcon_set_wol,
+ .resume_wol = efx_port_dummy_op_void,
+ .test_registers = falcon_b0_test_registers,
+ .test_nvram = falcon_test_nvram,
+ .default_mac_ops = &falcon_xmac_operations,
+
+ .revision = EFX_REV_FALCON_B0,
+ /* Map everything up to and including the RSS indirection
+ * table. Don't map MSI-X table, MSI-X PBA since Linux
+ * requires that they not be mapped. */
+ .mem_map_size = (FR_BZ_RX_INDIRECTION_TBL +
+ FR_BZ_RX_INDIRECTION_TBL_STEP *
+ FR_BZ_RX_INDIRECTION_TBL_ROWS),
+ .txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,
+ .rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL,
+ .buf_tbl_base = FR_BZ_BUF_FULL_TBL,
+ .evq_ptr_tbl_base = FR_BZ_EVQ_PTR_TBL,
+ .evq_rptr_tbl_base = FR_BZ_EVQ_RPTR,
+ .max_dma_mask = DMA_BIT_MASK(FSF_AZ_TX_KER_BUF_ADDR_WIDTH),
+ .rx_buffer_hash_size = 0x10,
+ .rx_buffer_padding = 0,
+ .max_interrupt_mode = EFX_INT_MODE_MSIX,
+ .phys_addr_channels = 32, /* Hardware limit is 64, but the legacy
+ * interrupt handler only supports 32
+ * channels */
+ .tx_dc_base = 0x130000,
+ .rx_dc_base = 0x100000,
+ .offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE,
+};
+
diff --git a/drivers/net/ethernet/sfc/falcon_boards.c b/drivers/net/ethernet/sfc/falcon_boards.c
new file mode 100644
index 000000000000..b9cc846811d6
--- /dev/null
+++ b/drivers/net/ethernet/sfc/falcon_boards.c
@@ -0,0 +1,776 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2007-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/rtnetlink.h>
+
+#include "net_driver.h"
+#include "phy.h"
+#include "efx.h"
+#include "nic.h"
+#include "workarounds.h"
+
+/* Macros for unpacking the board revision */
+/* The revision info is in host byte order. */
+#define FALCON_BOARD_TYPE(_rev) (_rev >> 8)
+#define FALCON_BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf)
+#define FALCON_BOARD_MINOR(_rev) (_rev & 0xf)
+
+/* Board types */
+#define FALCON_BOARD_SFE4001 0x01
+#define FALCON_BOARD_SFE4002 0x02
+#define FALCON_BOARD_SFE4003 0x03
+#define FALCON_BOARD_SFN4112F 0x52
+
+/* Board temperature is about 15°C above ambient when air flow is
+ * limited. The maximum acceptable ambient temperature varies
+ * depending on the PHY specifications but the critical temperature
+ * above which we should shut down to avoid damage is 80°C. */
+#define FALCON_BOARD_TEMP_BIAS 15
+#define FALCON_BOARD_TEMP_CRIT (80 + FALCON_BOARD_TEMP_BIAS)
+
+/* SFC4000 datasheet says: 'The maximum permitted junction temperature
+ * is 125°C; the thermal design of the environment for the SFC4000
+ * should aim to keep this well below 100°C.' */
+#define FALCON_JUNC_TEMP_MIN 0
+#define FALCON_JUNC_TEMP_MAX 90
+#define FALCON_JUNC_TEMP_CRIT 125
+
+/*****************************************************************************
+ * Support for LM87 sensor chip used on several boards
+ */
+#define LM87_REG_TEMP_HW_INT_LOCK 0x13
+#define LM87_REG_TEMP_HW_EXT_LOCK 0x14
+#define LM87_REG_TEMP_HW_INT 0x17
+#define LM87_REG_TEMP_HW_EXT 0x18
+#define LM87_REG_TEMP_EXT1 0x26
+#define LM87_REG_TEMP_INT 0x27
+#define LM87_REG_ALARMS1 0x41
+#define LM87_REG_ALARMS2 0x42
+#define LM87_IN_LIMITS(nr, _min, _max) \
+ 0x2B + (nr) * 2, _max, 0x2C + (nr) * 2, _min
+#define LM87_AIN_LIMITS(nr, _min, _max) \
+ 0x3B + (nr), _max, 0x1A + (nr), _min
+#define LM87_TEMP_INT_LIMITS(_min, _max) \
+ 0x39, _max, 0x3A, _min
+#define LM87_TEMP_EXT1_LIMITS(_min, _max) \
+ 0x37, _max, 0x38, _min
+
+#define LM87_ALARM_TEMP_INT 0x10
+#define LM87_ALARM_TEMP_EXT1 0x20
+
+#if defined(CONFIG_SENSORS_LM87) || defined(CONFIG_SENSORS_LM87_MODULE)
+
+static int efx_poke_lm87(struct i2c_client *client, const u8 *reg_values)
+{
+ while (*reg_values) {
+ u8 reg = *reg_values++;
+ u8 value = *reg_values++;
+ int rc = i2c_smbus_write_byte_data(client, reg, value);
+ if (rc)
+ return rc;
+ }
+ return 0;
+}
+
+static const u8 falcon_lm87_common_regs[] = {
+ LM87_REG_TEMP_HW_INT_LOCK, FALCON_BOARD_TEMP_CRIT,
+ LM87_REG_TEMP_HW_INT, FALCON_BOARD_TEMP_CRIT,
+ LM87_TEMP_EXT1_LIMITS(FALCON_JUNC_TEMP_MIN, FALCON_JUNC_TEMP_MAX),
+ LM87_REG_TEMP_HW_EXT_LOCK, FALCON_JUNC_TEMP_CRIT,
+ LM87_REG_TEMP_HW_EXT, FALCON_JUNC_TEMP_CRIT,
+ 0
+};
+
+static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
+ const u8 *reg_values)
+{
+ struct falcon_board *board = falcon_board(efx);
+ struct i2c_client *client = i2c_new_device(&board->i2c_adap, info);
+ int rc;
+
+ if (!client)
+ return -EIO;
+
+ /* Read-to-clear alarm/interrupt status */
+ i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
+ i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
+
+ rc = efx_poke_lm87(client, reg_values);
+ if (rc)
+ goto err;
+ rc = efx_poke_lm87(client, falcon_lm87_common_regs);
+ if (rc)
+ goto err;
+
+ board->hwmon_client = client;
+ return 0;
+
+err:
+ i2c_unregister_device(client);
+ return rc;
+}
+
+static void efx_fini_lm87(struct efx_nic *efx)
+{
+ i2c_unregister_device(falcon_board(efx)->hwmon_client);
+}
+
+static int efx_check_lm87(struct efx_nic *efx, unsigned mask)
+{
+ struct i2c_client *client = falcon_board(efx)->hwmon_client;
+ bool temp_crit, elec_fault, is_failure;
+ u16 alarms;
+ s32 reg;
+
+ /* If link is up then do not monitor temperature */
+ if (EFX_WORKAROUND_7884(efx) && efx->link_state.up)
+ return 0;
+
+ reg = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
+ if (reg < 0)
+ return reg;
+ alarms = reg;
+ reg = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
+ if (reg < 0)
+ return reg;
+ alarms |= reg << 8;
+ alarms &= mask;
+
+ temp_crit = false;
+ if (alarms & LM87_ALARM_TEMP_INT) {
+ reg = i2c_smbus_read_byte_data(client, LM87_REG_TEMP_INT);
+ if (reg < 0)
+ return reg;
+ if (reg > FALCON_BOARD_TEMP_CRIT)
+ temp_crit = true;
+ }
+ if (alarms & LM87_ALARM_TEMP_EXT1) {
+ reg = i2c_smbus_read_byte_data(client, LM87_REG_TEMP_EXT1);
+ if (reg < 0)
+ return reg;
+ if (reg > FALCON_JUNC_TEMP_CRIT)
+ temp_crit = true;
+ }
+ elec_fault = alarms & ~(LM87_ALARM_TEMP_INT | LM87_ALARM_TEMP_EXT1);
+ is_failure = temp_crit || elec_fault;
+
+ if (alarms)
+ netif_err(efx, hw, efx->net_dev,
+ "LM87 detected a hardware %s (status %02x:%02x)"
+ "%s%s%s%s\n",
+ is_failure ? "failure" : "problem",
+ alarms & 0xff, alarms >> 8,
+ (alarms & LM87_ALARM_TEMP_INT) ?
+ "; board is overheating" : "",
+ (alarms & LM87_ALARM_TEMP_EXT1) ?
+ "; controller is overheating" : "",
+ temp_crit ? "; reached critical temperature" : "",
+ elec_fault ? "; electrical fault" : "");
+
+ return is_failure ? -ERANGE : 0;
+}
+
+#else /* !CONFIG_SENSORS_LM87 */
+
+static inline int
+efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
+ const u8 *reg_values)
+{
+ return 0;
+}
+static inline void efx_fini_lm87(struct efx_nic *efx)
+{
+}
+static inline int efx_check_lm87(struct efx_nic *efx, unsigned mask)
+{
+ return 0;
+}
+
+#endif /* CONFIG_SENSORS_LM87 */
+
+/*****************************************************************************
+ * Support for the SFE4001 NIC.
+ *
+ * The SFE4001 does not power-up fully at reset due to its high power
+ * consumption. We control its power via a PCA9539 I/O expander.
+ * It also has a MAX6647 temperature monitor which we expose to
+ * the lm90 driver.
+ *
+ * This also provides minimal support for reflashing the PHY, which is
+ * initiated by resetting it with the FLASH_CFG_1 pin pulled down.
+ * On SFE4001 rev A2 and later this is connected to the 3V3X output of
+ * the IO-expander.
+ * We represent reflash mode as PHY_MODE_SPECIAL and make it mutually
+ * exclusive with the network device being open.
+ */
+
+/**************************************************************************
+ * Support for I2C IO Expander device on SFE4001
+ */
+#define PCA9539 0x74
+
+#define P0_IN 0x00
+#define P0_OUT 0x02
+#define P0_INVERT 0x04
+#define P0_CONFIG 0x06
+
+#define P0_EN_1V0X_LBN 0
+#define P0_EN_1V0X_WIDTH 1
+#define P0_EN_1V2_LBN 1
+#define P0_EN_1V2_WIDTH 1
+#define P0_EN_2V5_LBN 2
+#define P0_EN_2V5_WIDTH 1
+#define P0_EN_3V3X_LBN 3
+#define P0_EN_3V3X_WIDTH 1
+#define P0_EN_5V_LBN 4
+#define P0_EN_5V_WIDTH 1
+#define P0_SHORTEN_JTAG_LBN 5
+#define P0_SHORTEN_JTAG_WIDTH 1
+#define P0_X_TRST_LBN 6
+#define P0_X_TRST_WIDTH 1
+#define P0_DSP_RESET_LBN 7
+#define P0_DSP_RESET_WIDTH 1
+
+#define P1_IN 0x01
+#define P1_OUT 0x03
+#define P1_INVERT 0x05
+#define P1_CONFIG 0x07
+
+#define P1_AFE_PWD_LBN 0
+#define P1_AFE_PWD_WIDTH 1
+#define P1_DSP_PWD25_LBN 1
+#define P1_DSP_PWD25_WIDTH 1
+#define P1_RESERVED_LBN 2
+#define P1_RESERVED_WIDTH 2
+#define P1_SPARE_LBN 4
+#define P1_SPARE_WIDTH 4
+
+/* Temperature Sensor */
+#define MAX664X_REG_RSL 0x02
+#define MAX664X_REG_WLHO 0x0B
+
+static void sfe4001_poweroff(struct efx_nic *efx)
+{
+ struct i2c_client *ioexp_client = falcon_board(efx)->ioexp_client;
+ struct i2c_client *hwmon_client = falcon_board(efx)->hwmon_client;
+
+ /* Turn off all power rails and disable outputs */
+ i2c_smbus_write_byte_data(ioexp_client, P0_OUT, 0xff);
+ i2c_smbus_write_byte_data(ioexp_client, P1_CONFIG, 0xff);
+ i2c_smbus_write_byte_data(ioexp_client, P0_CONFIG, 0xff);
+
+ /* Clear any over-temperature alert */
+ i2c_smbus_read_byte_data(hwmon_client, MAX664X_REG_RSL);
+}
+
+static int sfe4001_poweron(struct efx_nic *efx)
+{
+ struct i2c_client *ioexp_client = falcon_board(efx)->ioexp_client;
+ struct i2c_client *hwmon_client = falcon_board(efx)->hwmon_client;
+ unsigned int i, j;
+ int rc;
+ u8 out;
+
+ /* Clear any previous over-temperature alert */
+ rc = i2c_smbus_read_byte_data(hwmon_client, MAX664X_REG_RSL);
+ if (rc < 0)
+ return rc;
+
+ /* Enable port 0 and port 1 outputs on IO expander */
+ rc = i2c_smbus_write_byte_data(ioexp_client, P0_CONFIG, 0x00);
+ if (rc)
+ return rc;
+ rc = i2c_smbus_write_byte_data(ioexp_client, P1_CONFIG,
+ 0xff & ~(1 << P1_SPARE_LBN));
+ if (rc)
+ goto fail_on;
+
+ /* If PHY power is on, turn it all off and wait 1 second to
+ * ensure a full reset.
+ */
+ rc = i2c_smbus_read_byte_data(ioexp_client, P0_OUT);
+ if (rc < 0)
+ goto fail_on;
+ out = 0xff & ~((0 << P0_EN_1V2_LBN) | (0 << P0_EN_2V5_LBN) |
+ (0 << P0_EN_3V3X_LBN) | (0 << P0_EN_5V_LBN) |
+ (0 << P0_EN_1V0X_LBN));
+ if (rc != out) {
+ netif_info(efx, hw, efx->net_dev, "power-cycling PHY\n");
+ rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
+ if (rc)
+ goto fail_on;
+ schedule_timeout_uninterruptible(HZ);
+ }
+
+ for (i = 0; i < 20; ++i) {
+ /* Turn on 1.2V, 2.5V, 3.3V and 5V power rails */
+ out = 0xff & ~((1 << P0_EN_1V2_LBN) | (1 << P0_EN_2V5_LBN) |
+ (1 << P0_EN_3V3X_LBN) | (1 << P0_EN_5V_LBN) |
+ (1 << P0_X_TRST_LBN));
+ if (efx->phy_mode & PHY_MODE_SPECIAL)
+ out |= 1 << P0_EN_3V3X_LBN;
+
+ rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
+ if (rc)
+ goto fail_on;
+ msleep(10);
+
+ /* Turn on 1V power rail */
+ out &= ~(1 << P0_EN_1V0X_LBN);
+ rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
+ if (rc)
+ goto fail_on;
+
+ netif_info(efx, hw, efx->net_dev,
+ "waiting for DSP boot (attempt %d)...\n", i);
+
+ /* In flash config mode, DSP does not turn on AFE, so
+ * just wait 1 second.
+ */
+ if (efx->phy_mode & PHY_MODE_SPECIAL) {
+ schedule_timeout_uninterruptible(HZ);
+ return 0;
+ }
+
+ for (j = 0; j < 10; ++j) {
+ msleep(100);
+
+ /* Check DSP has asserted AFE power line */
+ rc = i2c_smbus_read_byte_data(ioexp_client, P1_IN);
+ if (rc < 0)
+ goto fail_on;
+ if (rc & (1 << P1_AFE_PWD_LBN))
+ return 0;
+ }
+ }
+
+ netif_info(efx, hw, efx->net_dev, "timed out waiting for DSP boot\n");
+ rc = -ETIMEDOUT;
+fail_on:
+ sfe4001_poweroff(efx);
+ return rc;
+}
+
+static ssize_t show_phy_flash_cfg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ return sprintf(buf, "%d\n", !!(efx->phy_mode & PHY_MODE_SPECIAL));
+}
+
+static ssize_t set_phy_flash_cfg(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ enum efx_phy_mode old_mode, new_mode;
+ int err;
+
+ rtnl_lock();
+ old_mode = efx->phy_mode;
+ if (count == 0 || *buf == '0')
+ new_mode = old_mode & ~PHY_MODE_SPECIAL;
+ else
+ new_mode = PHY_MODE_SPECIAL;
+ if (!((old_mode ^ new_mode) & PHY_MODE_SPECIAL)) {
+ err = 0;
+ } else if (efx->state != STATE_RUNNING || netif_running(efx->net_dev)) {
+ err = -EBUSY;
+ } else {
+ /* Reset the PHY, reconfigure the MAC and enable/disable
+ * MAC stats accordingly. */
+ efx->phy_mode = new_mode;
+ if (new_mode & PHY_MODE_SPECIAL)
+ falcon_stop_nic_stats(efx);
+ err = sfe4001_poweron(efx);
+ if (!err)
+ err = efx_reconfigure_port(efx);
+ if (!(new_mode & PHY_MODE_SPECIAL))
+ falcon_start_nic_stats(efx);
+ }
+ rtnl_unlock();
+
+ return err ? err : count;
+}
+
+static DEVICE_ATTR(phy_flash_cfg, 0644, show_phy_flash_cfg, set_phy_flash_cfg);
+
+static void sfe4001_fini(struct efx_nic *efx)
+{
+ struct falcon_board *board = falcon_board(efx);
+
+ netif_info(efx, drv, efx->net_dev, "%s\n", __func__);
+
+ device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg);
+ sfe4001_poweroff(efx);
+ i2c_unregister_device(board->ioexp_client);
+ i2c_unregister_device(board->hwmon_client);
+}
+
+static int sfe4001_check_hw(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ s32 status;
+
+ /* If XAUI link is up then do not monitor */
+ if (EFX_WORKAROUND_7884(efx) && !nic_data->xmac_poll_required)
+ return 0;
+
+ /* Check the powered status of the PHY. Lack of power implies that
+ * the MAX6647 has shut down power to it, probably due to a temp.
+ * alarm. Reading the power status rather than the MAX6647 status
+ * directly because the later is read-to-clear and would thus
+ * start to power up the PHY again when polled, causing us to blip
+ * the power undesirably.
+ * We know we can read from the IO expander because we did
+ * it during power-on. Assume failure now is bad news. */
+ status = i2c_smbus_read_byte_data(falcon_board(efx)->ioexp_client, P1_IN);
+ if (status >= 0 &&
+ (status & ((1 << P1_AFE_PWD_LBN) | (1 << P1_DSP_PWD25_LBN))) != 0)
+ return 0;
+
+ /* Use board power control, not PHY power control */
+ sfe4001_poweroff(efx);
+ efx->phy_mode = PHY_MODE_OFF;
+
+ return (status < 0) ? -EIO : -ERANGE;
+}
+
+static struct i2c_board_info sfe4001_hwmon_info = {
+ I2C_BOARD_INFO("max6647", 0x4e),
+};
+
+/* This board uses an I2C expander to provider power to the PHY, which needs to
+ * be turned on before the PHY can be used.
+ * Context: Process context, rtnl lock held
+ */
+static int sfe4001_init(struct efx_nic *efx)
+{
+ struct falcon_board *board = falcon_board(efx);
+ int rc;
+
+#if defined(CONFIG_SENSORS_LM90) || defined(CONFIG_SENSORS_LM90_MODULE)
+ board->hwmon_client =
+ i2c_new_device(&board->i2c_adap, &sfe4001_hwmon_info);
+#else
+ board->hwmon_client =
+ i2c_new_dummy(&board->i2c_adap, sfe4001_hwmon_info.addr);
+#endif
+ if (!board->hwmon_client)
+ return -EIO;
+
+ /* Raise board/PHY high limit from 85 to 90 degrees Celsius */
+ rc = i2c_smbus_write_byte_data(board->hwmon_client,
+ MAX664X_REG_WLHO, 90);
+ if (rc)
+ goto fail_hwmon;
+
+ board->ioexp_client = i2c_new_dummy(&board->i2c_adap, PCA9539);
+ if (!board->ioexp_client) {
+ rc = -EIO;
+ goto fail_hwmon;
+ }
+
+ if (efx->phy_mode & PHY_MODE_SPECIAL) {
+ /* PHY won't generate a 156.25 MHz clock and MAC stats fetch
+ * will fail. */
+ falcon_stop_nic_stats(efx);
+ }
+ rc = sfe4001_poweron(efx);
+ if (rc)
+ goto fail_ioexp;
+
+ rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg);
+ if (rc)
+ goto fail_on;
+
+ netif_info(efx, hw, efx->net_dev, "PHY is powered on\n");
+ return 0;
+
+fail_on:
+ sfe4001_poweroff(efx);
+fail_ioexp:
+ i2c_unregister_device(board->ioexp_client);
+fail_hwmon:
+ i2c_unregister_device(board->hwmon_client);
+ return rc;
+}
+
+/*****************************************************************************
+ * Support for the SFE4002
+ *
+ */
+static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
+
+static const u8 sfe4002_lm87_regs[] = {
+ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
+ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
+ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
+ LM87_IN_LIMITS(3, 0xac, 0xd4), /* 5V: 5.0V +/- 10% */
+ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
+ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
+ LM87_AIN_LIMITS(0, 0x98, 0xbb), /* AIN1: 1.66V +/- 10% */
+ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
+ LM87_TEMP_INT_LIMITS(0, 80 + FALCON_BOARD_TEMP_BIAS),
+ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
+ 0
+};
+
+static struct i2c_board_info sfe4002_hwmon_info = {
+ I2C_BOARD_INFO("lm87", 0x2e),
+ .platform_data = &sfe4002_lm87_channel,
+};
+
+/****************************************************************************/
+/* LED allocations. Note that on rev A0 boards the schematic and the reality
+ * differ: red and green are swapped. Below is the fixed (A1) layout (there
+ * are only 3 A0 boards in existence, so no real reason to make this
+ * conditional).
+ */
+#define SFE4002_FAULT_LED (2) /* Red */
+#define SFE4002_RX_LED (0) /* Green */
+#define SFE4002_TX_LED (1) /* Amber */
+
+static void sfe4002_init_phy(struct efx_nic *efx)
+{
+ /* Set the TX and RX LEDs to reflect status and activity, and the
+ * fault LED off */
+ falcon_qt202x_set_led(efx, SFE4002_TX_LED,
+ QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT);
+ falcon_qt202x_set_led(efx, SFE4002_RX_LED,
+ QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT);
+ falcon_qt202x_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF);
+}
+
+static void sfe4002_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
+{
+ falcon_qt202x_set_led(
+ efx, SFE4002_FAULT_LED,
+ (mode == EFX_LED_ON) ? QUAKE_LED_ON : QUAKE_LED_OFF);
+}
+
+static int sfe4002_check_hw(struct efx_nic *efx)
+{
+ struct falcon_board *board = falcon_board(efx);
+
+ /* A0 board rev. 4002s report a temperature fault the whole time
+ * (bad sensor) so we mask it out. */
+ unsigned alarm_mask =
+ (board->major == 0 && board->minor == 0) ?
+ ~LM87_ALARM_TEMP_EXT1 : ~0;
+
+ return efx_check_lm87(efx, alarm_mask);
+}
+
+static int sfe4002_init(struct efx_nic *efx)
+{
+ return efx_init_lm87(efx, &sfe4002_hwmon_info, sfe4002_lm87_regs);
+}
+
+/*****************************************************************************
+ * Support for the SFN4112F
+ *
+ */
+static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */
+
+static const u8 sfn4112f_lm87_regs[] = {
+ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
+ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
+ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
+ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
+ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
+ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
+ LM87_TEMP_INT_LIMITS(0, 60 + FALCON_BOARD_TEMP_BIAS),
+ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
+ 0
+};
+
+static struct i2c_board_info sfn4112f_hwmon_info = {
+ I2C_BOARD_INFO("lm87", 0x2e),
+ .platform_data = &sfn4112f_lm87_channel,
+};
+
+#define SFN4112F_ACT_LED 0
+#define SFN4112F_LINK_LED 1
+
+static void sfn4112f_init_phy(struct efx_nic *efx)
+{
+ falcon_qt202x_set_led(efx, SFN4112F_ACT_LED,
+ QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACT);
+ falcon_qt202x_set_led(efx, SFN4112F_LINK_LED,
+ QUAKE_LED_RXLINK | QUAKE_LED_LINK_STAT);
+}
+
+static void sfn4112f_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
+{
+ int reg;
+
+ switch (mode) {
+ case EFX_LED_OFF:
+ reg = QUAKE_LED_OFF;
+ break;
+ case EFX_LED_ON:
+ reg = QUAKE_LED_ON;
+ break;
+ default:
+ reg = QUAKE_LED_RXLINK | QUAKE_LED_LINK_STAT;
+ break;
+ }
+
+ falcon_qt202x_set_led(efx, SFN4112F_LINK_LED, reg);
+}
+
+static int sfn4112f_check_hw(struct efx_nic *efx)
+{
+ /* Mask out unused sensors */
+ return efx_check_lm87(efx, ~0x48);
+}
+
+static int sfn4112f_init(struct efx_nic *efx)
+{
+ return efx_init_lm87(efx, &sfn4112f_hwmon_info, sfn4112f_lm87_regs);
+}
+
+/*****************************************************************************
+ * Support for the SFE4003
+ *
+ */
+static u8 sfe4003_lm87_channel = 0x03; /* use AIN not FAN inputs */
+
+static const u8 sfe4003_lm87_regs[] = {
+ LM87_IN_LIMITS(0, 0x67, 0x7f), /* 2.5V: 1.5V +/- 10% */
+ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
+ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
+ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
+ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
+ LM87_TEMP_INT_LIMITS(0, 70 + FALCON_BOARD_TEMP_BIAS),
+ 0
+};
+
+static struct i2c_board_info sfe4003_hwmon_info = {
+ I2C_BOARD_INFO("lm87", 0x2e),
+ .platform_data = &sfe4003_lm87_channel,
+};
+
+/* Board-specific LED info. */
+#define SFE4003_RED_LED_GPIO 11
+#define SFE4003_LED_ON 1
+#define SFE4003_LED_OFF 0
+
+static void sfe4003_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
+{
+ struct falcon_board *board = falcon_board(efx);
+
+ /* The LEDs were not wired to GPIOs before A3 */
+ if (board->minor < 3 && board->major == 0)
+ return;
+
+ falcon_txc_set_gpio_val(
+ efx, SFE4003_RED_LED_GPIO,
+ (mode == EFX_LED_ON) ? SFE4003_LED_ON : SFE4003_LED_OFF);
+}
+
+static void sfe4003_init_phy(struct efx_nic *efx)
+{
+ struct falcon_board *board = falcon_board(efx);
+
+ /* The LEDs were not wired to GPIOs before A3 */
+ if (board->minor < 3 && board->major == 0)
+ return;
+
+ falcon_txc_set_gpio_dir(efx, SFE4003_RED_LED_GPIO, TXC_GPIO_DIR_OUTPUT);
+ falcon_txc_set_gpio_val(efx, SFE4003_RED_LED_GPIO, SFE4003_LED_OFF);
+}
+
+static int sfe4003_check_hw(struct efx_nic *efx)
+{
+ struct falcon_board *board = falcon_board(efx);
+
+ /* A0/A1/A2 board rev. 4003s report a temperature fault the whole time
+ * (bad sensor) so we mask it out. */
+ unsigned alarm_mask =
+ (board->major == 0 && board->minor <= 2) ?
+ ~LM87_ALARM_TEMP_EXT1 : ~0;
+
+ return efx_check_lm87(efx, alarm_mask);
+}
+
+static int sfe4003_init(struct efx_nic *efx)
+{
+ return efx_init_lm87(efx, &sfe4003_hwmon_info, sfe4003_lm87_regs);
+}
+
+static const struct falcon_board_type board_types[] = {
+ {
+ .id = FALCON_BOARD_SFE4001,
+ .ref_model = "SFE4001",
+ .gen_type = "10GBASE-T adapter",
+ .init = sfe4001_init,
+ .init_phy = efx_port_dummy_op_void,
+ .fini = sfe4001_fini,
+ .set_id_led = tenxpress_set_id_led,
+ .monitor = sfe4001_check_hw,
+ },
+ {
+ .id = FALCON_BOARD_SFE4002,
+ .ref_model = "SFE4002",
+ .gen_type = "XFP adapter",
+ .init = sfe4002_init,
+ .init_phy = sfe4002_init_phy,
+ .fini = efx_fini_lm87,
+ .set_id_led = sfe4002_set_id_led,
+ .monitor = sfe4002_check_hw,
+ },
+ {
+ .id = FALCON_BOARD_SFE4003,
+ .ref_model = "SFE4003",
+ .gen_type = "10GBASE-CX4 adapter",
+ .init = sfe4003_init,
+ .init_phy = sfe4003_init_phy,
+ .fini = efx_fini_lm87,
+ .set_id_led = sfe4003_set_id_led,
+ .monitor = sfe4003_check_hw,
+ },
+ {
+ .id = FALCON_BOARD_SFN4112F,
+ .ref_model = "SFN4112F",
+ .gen_type = "SFP+ adapter",
+ .init = sfn4112f_init,
+ .init_phy = sfn4112f_init_phy,
+ .fini = efx_fini_lm87,
+ .set_id_led = sfn4112f_set_id_led,
+ .monitor = sfn4112f_check_hw,
+ },
+};
+
+int falcon_probe_board(struct efx_nic *efx, u16 revision_info)
+{
+ struct falcon_board *board = falcon_board(efx);
+ u8 type_id = FALCON_BOARD_TYPE(revision_info);
+ int i;
+
+ board->major = FALCON_BOARD_MAJOR(revision_info);
+ board->minor = FALCON_BOARD_MINOR(revision_info);
+
+ for (i = 0; i < ARRAY_SIZE(board_types); i++)
+ if (board_types[i].id == type_id)
+ board->type = &board_types[i];
+
+ if (board->type) {
+ netif_info(efx, probe, efx->net_dev, "board is %s rev %c%d\n",
+ (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
+ ? board->type->ref_model : board->type->gen_type,
+ 'A' + board->major, board->minor);
+ return 0;
+ } else {
+ netif_err(efx, probe, efx->net_dev, "unknown board type %d\n",
+ type_id);
+ return -ENODEV;
+ }
+}
diff --git a/drivers/net/ethernet/sfc/falcon_xmac.c b/drivers/net/ethernet/sfc/falcon_xmac.c
new file mode 100644
index 000000000000..9516452c079c
--- /dev/null
+++ b/drivers/net/ethernet/sfc/falcon_xmac.c
@@ -0,0 +1,369 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/delay.h>
+#include "net_driver.h"
+#include "efx.h"
+#include "nic.h"
+#include "regs.h"
+#include "io.h"
+#include "mac.h"
+#include "mdio_10g.h"
+#include "workarounds.h"
+
+/**************************************************************************
+ *
+ * MAC operations
+ *
+ *************************************************************************/
+
+/* Configure the XAUI driver that is an output from Falcon */
+void falcon_setup_xaui(struct efx_nic *efx)
+{
+ efx_oword_t sdctl, txdrv;
+
+ /* Move the XAUI into low power, unless there is no PHY, in
+ * which case the XAUI will have to drive a cable. */
+ if (efx->phy_type == PHY_TYPE_NONE)
+ return;
+
+ efx_reado(efx, &sdctl, FR_AB_XX_SD_CTL);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVD, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVD, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVC, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVC, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVB, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVB, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVA, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVA, FFE_AB_XX_SD_CTL_DRV_DEF);
+ efx_writeo(efx, &sdctl, FR_AB_XX_SD_CTL);
+
+ EFX_POPULATE_OWORD_8(txdrv,
+ FRF_AB_XX_DEQD, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQC, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQB, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQA, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DTXD, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXC, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXB, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXA, FFE_AB_XX_TXDRV_DTX_DEF);
+ efx_writeo(efx, &txdrv, FR_AB_XX_TXDRV_CTL);
+}
+
+int falcon_reset_xaui(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
+ int count;
+
+ /* Don't fetch MAC statistics over an XMAC reset */
+ WARN_ON(nic_data->stats_disable_count == 0);
+
+ /* Start reset sequence */
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_XX_RST_XX_EN, 1);
+ efx_writeo(efx, &reg, FR_AB_XX_PWR_RST);
+
+ /* Wait up to 10 ms for completion, then reinitialise */
+ for (count = 0; count < 1000; count++) {
+ efx_reado(efx, &reg, FR_AB_XX_PWR_RST);
+ if (EFX_OWORD_FIELD(reg, FRF_AB_XX_RST_XX_EN) == 0 &&
+ EFX_OWORD_FIELD(reg, FRF_AB_XX_SD_RST_ACT) == 0) {
+ falcon_setup_xaui(efx);
+ return 0;
+ }
+ udelay(10);
+ }
+ netif_err(efx, hw, efx->net_dev,
+ "timed out waiting for XAUI/XGXS reset\n");
+ return -ETIMEDOUT;
+}
+
+static void falcon_ack_status_intr(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
+
+ if ((efx_nic_rev(efx) != EFX_REV_FALCON_B0) || LOOPBACK_INTERNAL(efx))
+ return;
+
+ /* We expect xgmii faults if the wireside link is down */
+ if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up)
+ return;
+
+ /* We can only use this interrupt to signal the negative edge of
+ * xaui_align [we have to poll the positive edge]. */
+ if (nic_data->xmac_poll_required)
+ return;
+
+ efx_reado(efx, &reg, FR_AB_XM_MGT_INT_MSK);
+}
+
+static bool falcon_xgxs_link_ok(struct efx_nic *efx)
+{
+ efx_oword_t reg;
+ bool align_done, link_ok = false;
+ int sync_status;
+
+ /* Read link status */
+ efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
+
+ align_done = EFX_OWORD_FIELD(reg, FRF_AB_XX_ALIGN_DONE);
+ sync_status = EFX_OWORD_FIELD(reg, FRF_AB_XX_SYNC_STAT);
+ if (align_done && (sync_status == FFE_AB_XX_STAT_ALL_LANES))
+ link_ok = true;
+
+ /* Clear link status ready for next read */
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_COMMA_DET, FFE_AB_XX_STAT_ALL_LANES);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_CHAR_ERR, FFE_AB_XX_STAT_ALL_LANES);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_DISPERR, FFE_AB_XX_STAT_ALL_LANES);
+ efx_writeo(efx, &reg, FR_AB_XX_CORE_STAT);
+
+ return link_ok;
+}
+
+static bool falcon_xmac_link_ok(struct efx_nic *efx)
+{
+ /*
+ * Check MAC's XGXS link status except when using XGMII loopback
+ * which bypasses the XGXS block.
+ * If possible, check PHY's XGXS link status except when using
+ * MAC loopback.
+ */
+ return (efx->loopback_mode == LOOPBACK_XGMII ||
+ falcon_xgxs_link_ok(efx)) &&
+ (!(efx->mdio.mmds & (1 << MDIO_MMD_PHYXS)) ||
+ LOOPBACK_INTERNAL(efx) ||
+ efx_mdio_phyxgxs_lane_sync(efx));
+}
+
+static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
+{
+ unsigned int max_frame_len;
+ efx_oword_t reg;
+ bool rx_fc = !!(efx->link_state.fc & EFX_FC_RX);
+ bool tx_fc = !!(efx->link_state.fc & EFX_FC_TX);
+
+ /* Configure MAC - cut-thru mode is hard wired on */
+ EFX_POPULATE_OWORD_3(reg,
+ FRF_AB_XM_RX_JUMBO_MODE, 1,
+ FRF_AB_XM_TX_STAT_EN, 1,
+ FRF_AB_XM_RX_STAT_EN, 1);
+ efx_writeo(efx, &reg, FR_AB_XM_GLB_CFG);
+
+ /* Configure TX */
+ EFX_POPULATE_OWORD_6(reg,
+ FRF_AB_XM_TXEN, 1,
+ FRF_AB_XM_TX_PRMBL, 1,
+ FRF_AB_XM_AUTO_PAD, 1,
+ FRF_AB_XM_TXCRC, 1,
+ FRF_AB_XM_FCNTL, tx_fc,
+ FRF_AB_XM_IPG, 0x3);
+ efx_writeo(efx, &reg, FR_AB_XM_TX_CFG);
+
+ /* Configure RX */
+ EFX_POPULATE_OWORD_5(reg,
+ FRF_AB_XM_RXEN, 1,
+ FRF_AB_XM_AUTO_DEPAD, 0,
+ FRF_AB_XM_ACPT_ALL_MCAST, 1,
+ FRF_AB_XM_ACPT_ALL_UCAST, efx->promiscuous,
+ FRF_AB_XM_PASS_CRC_ERR, 1);
+ efx_writeo(efx, &reg, FR_AB_XM_RX_CFG);
+
+ /* Set frame length */
+ max_frame_len = EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_MAX_RX_FRM_SIZE, max_frame_len);
+ efx_writeo(efx, &reg, FR_AB_XM_RX_PARAM);
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_XM_MAX_TX_FRM_SIZE, max_frame_len,
+ FRF_AB_XM_TX_JUMBO_MODE, 1);
+ efx_writeo(efx, &reg, FR_AB_XM_TX_PARAM);
+
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
+ FRF_AB_XM_DIS_FCNTL, !rx_fc);
+ efx_writeo(efx, &reg, FR_AB_XM_FC);
+
+ /* Set MAC address */
+ memcpy(&reg, &efx->net_dev->dev_addr[0], 4);
+ efx_writeo(efx, &reg, FR_AB_XM_ADR_LO);
+ memcpy(&reg, &efx->net_dev->dev_addr[4], 2);
+ efx_writeo(efx, &reg, FR_AB_XM_ADR_HI);
+}
+
+static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
+{
+ efx_oword_t reg;
+ bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
+ bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
+ bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);
+
+ /* XGXS block is flaky and will need to be reset if moving
+ * into our out of XGMII, XGXS or XAUI loopbacks. */
+ if (EFX_WORKAROUND_5147(efx)) {
+ bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
+ bool reset_xgxs;
+
+ efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
+ old_xgxs_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN);
+ old_xgmii_loopback =
+ EFX_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN);
+
+ efx_reado(efx, &reg, FR_AB_XX_SD_CTL);
+ old_xaui_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_LPBKA);
+
+ /* The PHY driver may have turned XAUI off */
+ reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
+ (xaui_loopback != old_xaui_loopback) ||
+ (xgmii_loopback != old_xgmii_loopback));
+
+ if (reset_xgxs)
+ falcon_reset_xaui(efx);
+ }
+
+ efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_FORCE_SIG,
+ (xgxs_loopback || xaui_loopback) ?
+ FFE_AB_XX_FORCE_SIG_ALL_LANES : 0);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN, xgxs_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN, xgmii_loopback);
+ efx_writeo(efx, &reg, FR_AB_XX_CORE_STAT);
+
+ efx_reado(efx, &reg, FR_AB_XX_SD_CTL);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKD, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKC, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKB, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKA, xaui_loopback);
+ efx_writeo(efx, &reg, FR_AB_XX_SD_CTL);
+}
+
+
+/* Try to bring up the Falcon side of the Falcon-Phy XAUI link */
+static bool falcon_xmac_link_ok_retry(struct efx_nic *efx, int tries)
+{
+ bool mac_up = falcon_xmac_link_ok(efx);
+
+ if (LOOPBACK_MASK(efx) & LOOPBACKS_EXTERNAL(efx) & LOOPBACKS_WS ||
+ efx_phy_mode_disabled(efx->phy_mode))
+ /* XAUI link is expected to be down */
+ return mac_up;
+
+ falcon_stop_nic_stats(efx);
+
+ while (!mac_up && tries) {
+ netif_dbg(efx, hw, efx->net_dev, "bashing xaui\n");
+ falcon_reset_xaui(efx);
+ udelay(200);
+
+ mac_up = falcon_xmac_link_ok(efx);
+ --tries;
+ }
+
+ falcon_start_nic_stats(efx);
+
+ return mac_up;
+}
+
+static bool falcon_xmac_check_fault(struct efx_nic *efx)
+{
+ return !falcon_xmac_link_ok_retry(efx, 5);
+}
+
+static int falcon_reconfigure_xmac(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ falcon_reconfigure_xgxs_core(efx);
+ falcon_reconfigure_xmac_core(efx);
+
+ falcon_reconfigure_mac_wrapper(efx);
+
+ nic_data->xmac_poll_required = !falcon_xmac_link_ok_retry(efx, 5);
+ falcon_ack_status_intr(efx);
+
+ return 0;
+}
+
+static void falcon_update_stats_xmac(struct efx_nic *efx)
+{
+ struct efx_mac_stats *mac_stats = &efx->mac_stats;
+
+ /* Update MAC stats from DMAed values */
+ FALCON_STAT(efx, XgRxOctets, rx_bytes);
+ FALCON_STAT(efx, XgRxOctetsOK, rx_good_bytes);
+ FALCON_STAT(efx, XgRxPkts, rx_packets);
+ FALCON_STAT(efx, XgRxPktsOK, rx_good);
+ FALCON_STAT(efx, XgRxBroadcastPkts, rx_broadcast);
+ FALCON_STAT(efx, XgRxMulticastPkts, rx_multicast);
+ FALCON_STAT(efx, XgRxUnicastPkts, rx_unicast);
+ FALCON_STAT(efx, XgRxUndersizePkts, rx_lt64);
+ FALCON_STAT(efx, XgRxOversizePkts, rx_gtjumbo);
+ FALCON_STAT(efx, XgRxJabberPkts, rx_bad_gtjumbo);
+ FALCON_STAT(efx, XgRxUndersizeFCSerrorPkts, rx_bad_lt64);
+ FALCON_STAT(efx, XgRxDropEvents, rx_overflow);
+ FALCON_STAT(efx, XgRxFCSerrorPkts, rx_bad);
+ FALCON_STAT(efx, XgRxAlignError, rx_align_error);
+ FALCON_STAT(efx, XgRxSymbolError, rx_symbol_error);
+ FALCON_STAT(efx, XgRxInternalMACError, rx_internal_error);
+ FALCON_STAT(efx, XgRxControlPkts, rx_control);
+ FALCON_STAT(efx, XgRxPausePkts, rx_pause);
+ FALCON_STAT(efx, XgRxPkts64Octets, rx_64);
+ FALCON_STAT(efx, XgRxPkts65to127Octets, rx_65_to_127);
+ FALCON_STAT(efx, XgRxPkts128to255Octets, rx_128_to_255);
+ FALCON_STAT(efx, XgRxPkts256to511Octets, rx_256_to_511);
+ FALCON_STAT(efx, XgRxPkts512to1023Octets, rx_512_to_1023);
+ FALCON_STAT(efx, XgRxPkts1024to15xxOctets, rx_1024_to_15xx);
+ FALCON_STAT(efx, XgRxPkts15xxtoMaxOctets, rx_15xx_to_jumbo);
+ FALCON_STAT(efx, XgRxLengthError, rx_length_error);
+ FALCON_STAT(efx, XgTxPkts, tx_packets);
+ FALCON_STAT(efx, XgTxOctets, tx_bytes);
+ FALCON_STAT(efx, XgTxMulticastPkts, tx_multicast);
+ FALCON_STAT(efx, XgTxBroadcastPkts, tx_broadcast);
+ FALCON_STAT(efx, XgTxUnicastPkts, tx_unicast);
+ FALCON_STAT(efx, XgTxControlPkts, tx_control);
+ FALCON_STAT(efx, XgTxPausePkts, tx_pause);
+ FALCON_STAT(efx, XgTxPkts64Octets, tx_64);
+ FALCON_STAT(efx, XgTxPkts65to127Octets, tx_65_to_127);
+ FALCON_STAT(efx, XgTxPkts128to255Octets, tx_128_to_255);
+ FALCON_STAT(efx, XgTxPkts256to511Octets, tx_256_to_511);
+ FALCON_STAT(efx, XgTxPkts512to1023Octets, tx_512_to_1023);
+ FALCON_STAT(efx, XgTxPkts1024to15xxOctets, tx_1024_to_15xx);
+ FALCON_STAT(efx, XgTxPkts1519toMaxOctets, tx_15xx_to_jumbo);
+ FALCON_STAT(efx, XgTxUndersizePkts, tx_lt64);
+ FALCON_STAT(efx, XgTxOversizePkts, tx_gtjumbo);
+ FALCON_STAT(efx, XgTxNonTcpUdpPkt, tx_non_tcpudp);
+ FALCON_STAT(efx, XgTxMacSrcErrPkt, tx_mac_src_error);
+ FALCON_STAT(efx, XgTxIpSrcErrPkt, tx_ip_src_error);
+
+ /* Update derived statistics */
+ mac_stats->tx_good_bytes =
+ (mac_stats->tx_bytes - mac_stats->tx_bad_bytes -
+ mac_stats->tx_control * 64);
+ mac_stats->rx_bad_bytes =
+ (mac_stats->rx_bytes - mac_stats->rx_good_bytes -
+ mac_stats->rx_control * 64);
+}
+
+void falcon_poll_xmac(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+
+ if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up ||
+ !nic_data->xmac_poll_required)
+ return;
+
+ nic_data->xmac_poll_required = !falcon_xmac_link_ok_retry(efx, 1);
+ falcon_ack_status_intr(efx);
+}
+
+const struct efx_mac_operations falcon_xmac_operations = {
+ .reconfigure = falcon_reconfigure_xmac,
+ .update_stats = falcon_update_stats_xmac,
+ .check_fault = falcon_xmac_check_fault,
+};
diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c
new file mode 100644
index 000000000000..2b9636f96e05
--- /dev/null
+++ b/drivers/net/ethernet/sfc/filter.c
@@ -0,0 +1,727 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/in.h>
+#include <net/ip.h>
+#include "efx.h"
+#include "filter.h"
+#include "io.h"
+#include "nic.h"
+#include "regs.h"
+
+/* "Fudge factors" - difference between programmed value and actual depth.
+ * Due to pipelined implementation we need to program H/W with a value that
+ * is larger than the hop limit we want.
+ */
+#define FILTER_CTL_SRCH_FUDGE_WILD 3
+#define FILTER_CTL_SRCH_FUDGE_FULL 1
+
+/* Hard maximum hop limit. Hardware will time-out beyond 200-something.
+ * We also need to avoid infinite loops in efx_filter_search() when the
+ * table is full.
+ */
+#define FILTER_CTL_SRCH_MAX 200
+
+/* Don't try very hard to find space for performance hints, as this is
+ * counter-productive. */
+#define FILTER_CTL_SRCH_HINT_MAX 5
+
+enum efx_filter_table_id {
+ EFX_FILTER_TABLE_RX_IP = 0,
+ EFX_FILTER_TABLE_RX_MAC,
+ EFX_FILTER_TABLE_COUNT,
+};
+
+struct efx_filter_table {
+ enum efx_filter_table_id id;
+ u32 offset; /* address of table relative to BAR */
+ unsigned size; /* number of entries */
+ unsigned step; /* step between entries */
+ unsigned used; /* number currently used */
+ unsigned long *used_bitmap;
+ struct efx_filter_spec *spec;
+ unsigned search_depth[EFX_FILTER_TYPE_COUNT];
+};
+
+struct efx_filter_state {
+ spinlock_t lock;
+ struct efx_filter_table table[EFX_FILTER_TABLE_COUNT];
+#ifdef CONFIG_RFS_ACCEL
+ u32 *rps_flow_id;
+ unsigned rps_expire_index;
+#endif
+};
+
+/* The filter hash function is LFSR polynomial x^16 + x^3 + 1 of a 32-bit
+ * key derived from the n-tuple. The initial LFSR state is 0xffff. */
+static u16 efx_filter_hash(u32 key)
+{
+ u16 tmp;
+
+ /* First 16 rounds */
+ tmp = 0x1fff ^ key >> 16;
+ tmp = tmp ^ tmp >> 3 ^ tmp >> 6;
+ tmp = tmp ^ tmp >> 9;
+ /* Last 16 rounds */
+ tmp = tmp ^ tmp << 13 ^ key;
+ tmp = tmp ^ tmp >> 3 ^ tmp >> 6;
+ return tmp ^ tmp >> 9;
+}
+
+/* To allow for hash collisions, filter search continues at these
+ * increments from the first possible entry selected by the hash. */
+static u16 efx_filter_increment(u32 key)
+{
+ return key * 2 - 1;
+}
+
+static enum efx_filter_table_id
+efx_filter_spec_table_id(const struct efx_filter_spec *spec)
+{
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_TCP_FULL >> 2));
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_TCP_WILD >> 2));
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_UDP_FULL >> 2));
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_UDP_WILD >> 2));
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_MAC_FULL >> 2));
+ BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_MAC_WILD >> 2));
+ EFX_BUG_ON_PARANOID(spec->type == EFX_FILTER_UNSPEC);
+ return spec->type >> 2;
+}
+
+static struct efx_filter_table *
+efx_filter_spec_table(struct efx_filter_state *state,
+ const struct efx_filter_spec *spec)
+{
+ if (spec->type == EFX_FILTER_UNSPEC)
+ return NULL;
+ else
+ return &state->table[efx_filter_spec_table_id(spec)];
+}
+
+static void efx_filter_table_reset_search_depth(struct efx_filter_table *table)
+{
+ memset(table->search_depth, 0, sizeof(table->search_depth));
+}
+
+static void efx_filter_push_rx_limits(struct efx_nic *efx)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_table *table;
+ efx_oword_t filter_ctl;
+
+ efx_reado(efx, &filter_ctl, FR_BZ_RX_FILTER_CTL);
+
+ table = &state->table[EFX_FILTER_TABLE_RX_IP];
+ EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_TCP_FULL_SRCH_LIMIT,
+ table->search_depth[EFX_FILTER_TCP_FULL] +
+ FILTER_CTL_SRCH_FUDGE_FULL);
+ EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_TCP_WILD_SRCH_LIMIT,
+ table->search_depth[EFX_FILTER_TCP_WILD] +
+ FILTER_CTL_SRCH_FUDGE_WILD);
+ EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_UDP_FULL_SRCH_LIMIT,
+ table->search_depth[EFX_FILTER_UDP_FULL] +
+ FILTER_CTL_SRCH_FUDGE_FULL);
+ EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_UDP_WILD_SRCH_LIMIT,
+ table->search_depth[EFX_FILTER_UDP_WILD] +
+ FILTER_CTL_SRCH_FUDGE_WILD);
+
+ table = &state->table[EFX_FILTER_TABLE_RX_MAC];
+ if (table->size) {
+ EFX_SET_OWORD_FIELD(
+ filter_ctl, FRF_CZ_ETHERNET_FULL_SEARCH_LIMIT,
+ table->search_depth[EFX_FILTER_MAC_FULL] +
+ FILTER_CTL_SRCH_FUDGE_FULL);
+ EFX_SET_OWORD_FIELD(
+ filter_ctl, FRF_CZ_ETHERNET_WILDCARD_SEARCH_LIMIT,
+ table->search_depth[EFX_FILTER_MAC_WILD] +
+ FILTER_CTL_SRCH_FUDGE_WILD);
+ }
+
+ efx_writeo(efx, &filter_ctl, FR_BZ_RX_FILTER_CTL);
+}
+
+static inline void __efx_filter_set_ipv4(struct efx_filter_spec *spec,
+ __be32 host1, __be16 port1,
+ __be32 host2, __be16 port2)
+{
+ spec->data[0] = ntohl(host1) << 16 | ntohs(port1);
+ spec->data[1] = ntohs(port2) << 16 | ntohl(host1) >> 16;
+ spec->data[2] = ntohl(host2);
+}
+
+/**
+ * efx_filter_set_ipv4_local - specify IPv4 host, transport protocol and port
+ * @spec: Specification to initialise
+ * @proto: Transport layer protocol number
+ * @host: Local host address (network byte order)
+ * @port: Local port (network byte order)
+ */
+int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
+ __be32 host, __be16 port)
+{
+ __be32 host1;
+ __be16 port1;
+
+ EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));
+
+ /* This cannot currently be combined with other filtering */
+ if (spec->type != EFX_FILTER_UNSPEC)
+ return -EPROTONOSUPPORT;
+
+ if (port == 0)
+ return -EINVAL;
+
+ switch (proto) {
+ case IPPROTO_TCP:
+ spec->type = EFX_FILTER_TCP_WILD;
+ break;
+ case IPPROTO_UDP:
+ spec->type = EFX_FILTER_UDP_WILD;
+ break;
+ default:
+ return -EPROTONOSUPPORT;
+ }
+
+ /* Filter is constructed in terms of source and destination,
+ * with the odd wrinkle that the ports are swapped in a UDP
+ * wildcard filter. We need to convert from local and remote
+ * (= zero for wildcard) addresses.
+ */
+ host1 = 0;
+ if (proto != IPPROTO_UDP) {
+ port1 = 0;
+ } else {
+ port1 = port;
+ port = 0;
+ }
+
+ __efx_filter_set_ipv4(spec, host1, port1, host, port);
+ return 0;
+}
+
+/**
+ * efx_filter_set_ipv4_full - specify IPv4 hosts, transport protocol and ports
+ * @spec: Specification to initialise
+ * @proto: Transport layer protocol number
+ * @host: Local host address (network byte order)
+ * @port: Local port (network byte order)
+ * @rhost: Remote host address (network byte order)
+ * @rport: Remote port (network byte order)
+ */
+int efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
+ __be32 host, __be16 port,
+ __be32 rhost, __be16 rport)
+{
+ EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));
+
+ /* This cannot currently be combined with other filtering */
+ if (spec->type != EFX_FILTER_UNSPEC)
+ return -EPROTONOSUPPORT;
+
+ if (port == 0 || rport == 0)
+ return -EINVAL;
+
+ switch (proto) {
+ case IPPROTO_TCP:
+ spec->type = EFX_FILTER_TCP_FULL;
+ break;
+ case IPPROTO_UDP:
+ spec->type = EFX_FILTER_UDP_FULL;
+ break;
+ default:
+ return -EPROTONOSUPPORT;
+ }
+
+ __efx_filter_set_ipv4(spec, rhost, rport, host, port);
+ return 0;
+}
+
+/**
+ * efx_filter_set_eth_local - specify local Ethernet address and optional VID
+ * @spec: Specification to initialise
+ * @vid: VLAN ID to match, or %EFX_FILTER_VID_UNSPEC
+ * @addr: Local Ethernet MAC address
+ */
+int efx_filter_set_eth_local(struct efx_filter_spec *spec,
+ u16 vid, const u8 *addr)
+{
+ EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));
+
+ /* This cannot currently be combined with other filtering */
+ if (spec->type != EFX_FILTER_UNSPEC)
+ return -EPROTONOSUPPORT;
+
+ if (vid == EFX_FILTER_VID_UNSPEC) {
+ spec->type = EFX_FILTER_MAC_WILD;
+ spec->data[0] = 0;
+ } else {
+ spec->type = EFX_FILTER_MAC_FULL;
+ spec->data[0] = vid;
+ }
+
+ spec->data[1] = addr[2] << 24 | addr[3] << 16 | addr[4] << 8 | addr[5];
+ spec->data[2] = addr[0] << 8 | addr[1];
+ return 0;
+}
+
+/* Build a filter entry and return its n-tuple key. */
+static u32 efx_filter_build(efx_oword_t *filter, struct efx_filter_spec *spec)
+{
+ u32 data3;
+
+ switch (efx_filter_spec_table_id(spec)) {
+ case EFX_FILTER_TABLE_RX_IP: {
+ bool is_udp = (spec->type == EFX_FILTER_UDP_FULL ||
+ spec->type == EFX_FILTER_UDP_WILD);
+ EFX_POPULATE_OWORD_7(
+ *filter,
+ FRF_BZ_RSS_EN,
+ !!(spec->flags & EFX_FILTER_FLAG_RX_RSS),
+ FRF_BZ_SCATTER_EN,
+ !!(spec->flags & EFX_FILTER_FLAG_RX_SCATTER),
+ FRF_BZ_TCP_UDP, is_udp,
+ FRF_BZ_RXQ_ID, spec->dmaq_id,
+ EFX_DWORD_2, spec->data[2],
+ EFX_DWORD_1, spec->data[1],
+ EFX_DWORD_0, spec->data[0]);
+ data3 = is_udp;
+ break;
+ }
+
+ case EFX_FILTER_TABLE_RX_MAC: {
+ bool is_wild = spec->type == EFX_FILTER_MAC_WILD;
+ EFX_POPULATE_OWORD_8(
+ *filter,
+ FRF_CZ_RMFT_RSS_EN,
+ !!(spec->flags & EFX_FILTER_FLAG_RX_RSS),
+ FRF_CZ_RMFT_SCATTER_EN,
+ !!(spec->flags & EFX_FILTER_FLAG_RX_SCATTER),
+ FRF_CZ_RMFT_IP_OVERRIDE,
+ !!(spec->flags & EFX_FILTER_FLAG_RX_OVERRIDE_IP),
+ FRF_CZ_RMFT_RXQ_ID, spec->dmaq_id,
+ FRF_CZ_RMFT_WILDCARD_MATCH, is_wild,
+ FRF_CZ_RMFT_DEST_MAC_HI, spec->data[2],
+ FRF_CZ_RMFT_DEST_MAC_LO, spec->data[1],
+ FRF_CZ_RMFT_VLAN_ID, spec->data[0]);
+ data3 = is_wild;
+ break;
+ }
+
+ default:
+ BUG();
+ }
+
+ return spec->data[0] ^ spec->data[1] ^ spec->data[2] ^ data3;
+}
+
+static bool efx_filter_equal(const struct efx_filter_spec *left,
+ const struct efx_filter_spec *right)
+{
+ if (left->type != right->type ||
+ memcmp(left->data, right->data, sizeof(left->data)))
+ return false;
+
+ return true;
+}
+
+static int efx_filter_search(struct efx_filter_table *table,
+ struct efx_filter_spec *spec, u32 key,
+ bool for_insert, int *depth_required)
+{
+ unsigned hash, incr, filter_idx, depth, depth_max;
+
+ hash = efx_filter_hash(key);
+ incr = efx_filter_increment(key);
+
+ filter_idx = hash & (table->size - 1);
+ depth = 1;
+ depth_max = (for_insert ?
+ (spec->priority <= EFX_FILTER_PRI_HINT ?
+ FILTER_CTL_SRCH_HINT_MAX : FILTER_CTL_SRCH_MAX) :
+ table->search_depth[spec->type]);
+
+ for (;;) {
+ /* Return success if entry is used and matches this spec
+ * or entry is unused and we are trying to insert.
+ */
+ if (test_bit(filter_idx, table->used_bitmap) ?
+ efx_filter_equal(spec, &table->spec[filter_idx]) :
+ for_insert) {
+ *depth_required = depth;
+ return filter_idx;
+ }
+
+ /* Return failure if we reached the maximum search depth */
+ if (depth == depth_max)
+ return for_insert ? -EBUSY : -ENOENT;
+
+ filter_idx = (filter_idx + incr) & (table->size - 1);
+ ++depth;
+ }
+}
+
+/* Construct/deconstruct external filter IDs */
+
+static inline int
+efx_filter_make_id(enum efx_filter_table_id table_id, unsigned index)
+{
+ return table_id << 16 | index;
+}
+
+/**
+ * efx_filter_insert_filter - add or replace a filter
+ * @efx: NIC in which to insert the filter
+ * @spec: Specification for the filter
+ * @replace: Flag for whether the specified filter may replace a filter
+ * with an identical match expression and equal or lower priority
+ *
+ * On success, return the filter ID.
+ * On failure, return a negative error code.
+ */
+int efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
+ bool replace)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_table *table = efx_filter_spec_table(state, spec);
+ struct efx_filter_spec *saved_spec;
+ efx_oword_t filter;
+ int filter_idx, depth;
+ u32 key;
+ int rc;
+
+ if (!table || table->size == 0)
+ return -EINVAL;
+
+ key = efx_filter_build(&filter, spec);
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "%s: type %d search_depth=%d", __func__, spec->type,
+ table->search_depth[spec->type]);
+
+ spin_lock_bh(&state->lock);
+
+ rc = efx_filter_search(table, spec, key, true, &depth);
+ if (rc < 0)
+ goto out;
+ filter_idx = rc;
+ BUG_ON(filter_idx >= table->size);
+ saved_spec = &table->spec[filter_idx];
+
+ if (test_bit(filter_idx, table->used_bitmap)) {
+ /* Should we replace the existing filter? */
+ if (!replace) {
+ rc = -EEXIST;
+ goto out;
+ }
+ if (spec->priority < saved_spec->priority) {
+ rc = -EPERM;
+ goto out;
+ }
+ } else {
+ __set_bit(filter_idx, table->used_bitmap);
+ ++table->used;
+ }
+ *saved_spec = *spec;
+
+ if (table->search_depth[spec->type] < depth) {
+ table->search_depth[spec->type] = depth;
+ efx_filter_push_rx_limits(efx);
+ }
+
+ efx_writeo(efx, &filter, table->offset + table->step * filter_idx);
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "%s: filter type %d index %d rxq %u set",
+ __func__, spec->type, filter_idx, spec->dmaq_id);
+ rc = efx_filter_make_id(table->id, filter_idx);
+
+out:
+ spin_unlock_bh(&state->lock);
+ return rc;
+}
+
+static void efx_filter_table_clear_entry(struct efx_nic *efx,
+ struct efx_filter_table *table,
+ int filter_idx)
+{
+ static efx_oword_t filter;
+
+ if (test_bit(filter_idx, table->used_bitmap)) {
+ __clear_bit(filter_idx, table->used_bitmap);
+ --table->used;
+ memset(&table->spec[filter_idx], 0, sizeof(table->spec[0]));
+
+ efx_writeo(efx, &filter,
+ table->offset + table->step * filter_idx);
+ }
+}
+
+/**
+ * efx_filter_remove_filter - remove a filter by specification
+ * @efx: NIC from which to remove the filter
+ * @spec: Specification for the filter
+ *
+ * On success, return zero.
+ * On failure, return a negative error code.
+ */
+int efx_filter_remove_filter(struct efx_nic *efx, struct efx_filter_spec *spec)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_table *table = efx_filter_spec_table(state, spec);
+ struct efx_filter_spec *saved_spec;
+ efx_oword_t filter;
+ int filter_idx, depth;
+ u32 key;
+ int rc;
+
+ if (!table)
+ return -EINVAL;
+
+ key = efx_filter_build(&filter, spec);
+
+ spin_lock_bh(&state->lock);
+
+ rc = efx_filter_search(table, spec, key, false, &depth);
+ if (rc < 0)
+ goto out;
+ filter_idx = rc;
+ saved_spec = &table->spec[filter_idx];
+
+ if (spec->priority < saved_spec->priority) {
+ rc = -EPERM;
+ goto out;
+ }
+
+ efx_filter_table_clear_entry(efx, table, filter_idx);
+ if (table->used == 0)
+ efx_filter_table_reset_search_depth(table);
+ rc = 0;
+
+out:
+ spin_unlock_bh(&state->lock);
+ return rc;
+}
+
+static void efx_filter_table_clear(struct efx_nic *efx,
+ enum efx_filter_table_id table_id,
+ enum efx_filter_priority priority)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_table *table = &state->table[table_id];
+ int filter_idx;
+
+ spin_lock_bh(&state->lock);
+
+ for (filter_idx = 0; filter_idx < table->size; ++filter_idx)
+ if (table->spec[filter_idx].priority <= priority)
+ efx_filter_table_clear_entry(efx, table, filter_idx);
+ if (table->used == 0)
+ efx_filter_table_reset_search_depth(table);
+
+ spin_unlock_bh(&state->lock);
+}
+
+/**
+ * efx_filter_clear_rx - remove RX filters by priority
+ * @efx: NIC from which to remove the filters
+ * @priority: Maximum priority to remove
+ */
+void efx_filter_clear_rx(struct efx_nic *efx, enum efx_filter_priority priority)
+{
+ efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_IP, priority);
+ efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_MAC, priority);
+}
+
+/* Restore filter stater after reset */
+void efx_restore_filters(struct efx_nic *efx)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ enum efx_filter_table_id table_id;
+ struct efx_filter_table *table;
+ efx_oword_t filter;
+ int filter_idx;
+
+ spin_lock_bh(&state->lock);
+
+ for (table_id = 0; table_id < EFX_FILTER_TABLE_COUNT; table_id++) {
+ table = &state->table[table_id];
+ for (filter_idx = 0; filter_idx < table->size; filter_idx++) {
+ if (!test_bit(filter_idx, table->used_bitmap))
+ continue;
+ efx_filter_build(&filter, &table->spec[filter_idx]);
+ efx_writeo(efx, &filter,
+ table->offset + table->step * filter_idx);
+ }
+ }
+
+ efx_filter_push_rx_limits(efx);
+
+ spin_unlock_bh(&state->lock);
+}
+
+int efx_probe_filters(struct efx_nic *efx)
+{
+ struct efx_filter_state *state;
+ struct efx_filter_table *table;
+ unsigned table_id;
+
+ state = kzalloc(sizeof(*efx->filter_state), GFP_KERNEL);
+ if (!state)
+ return -ENOMEM;
+ efx->filter_state = state;
+
+ spin_lock_init(&state->lock);
+
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+#ifdef CONFIG_RFS_ACCEL
+ state->rps_flow_id = kcalloc(FR_BZ_RX_FILTER_TBL0_ROWS,
+ sizeof(*state->rps_flow_id),
+ GFP_KERNEL);
+ if (!state->rps_flow_id)
+ goto fail;
+#endif
+ table = &state->table[EFX_FILTER_TABLE_RX_IP];
+ table->id = EFX_FILTER_TABLE_RX_IP;
+ table->offset = FR_BZ_RX_FILTER_TBL0;
+ table->size = FR_BZ_RX_FILTER_TBL0_ROWS;
+ table->step = FR_BZ_RX_FILTER_TBL0_STEP;
+ }
+
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) {
+ table = &state->table[EFX_FILTER_TABLE_RX_MAC];
+ table->id = EFX_FILTER_TABLE_RX_MAC;
+ table->offset = FR_CZ_RX_MAC_FILTER_TBL0;
+ table->size = FR_CZ_RX_MAC_FILTER_TBL0_ROWS;
+ table->step = FR_CZ_RX_MAC_FILTER_TBL0_STEP;
+ }
+
+ for (table_id = 0; table_id < EFX_FILTER_TABLE_COUNT; table_id++) {
+ table = &state->table[table_id];
+ if (table->size == 0)
+ continue;
+ table->used_bitmap = kcalloc(BITS_TO_LONGS(table->size),
+ sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!table->used_bitmap)
+ goto fail;
+ table->spec = vzalloc(table->size * sizeof(*table->spec));
+ if (!table->spec)
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ efx_remove_filters(efx);
+ return -ENOMEM;
+}
+
+void efx_remove_filters(struct efx_nic *efx)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ enum efx_filter_table_id table_id;
+
+ for (table_id = 0; table_id < EFX_FILTER_TABLE_COUNT; table_id++) {
+ kfree(state->table[table_id].used_bitmap);
+ vfree(state->table[table_id].spec);
+ }
+#ifdef CONFIG_RFS_ACCEL
+ kfree(state->rps_flow_id);
+#endif
+ kfree(state);
+}
+
+#ifdef CONFIG_RFS_ACCEL
+
+int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
+ u16 rxq_index, u32 flow_id)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_channel *channel;
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_spec spec;
+ const struct iphdr *ip;
+ const __be16 *ports;
+ int nhoff;
+ int rc;
+
+ nhoff = skb_network_offset(skb);
+
+ if (skb->protocol != htons(ETH_P_IP))
+ return -EPROTONOSUPPORT;
+
+ /* RFS must validate the IP header length before calling us */
+ EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + sizeof(*ip));
+ ip = (const struct iphdr *)(skb->data + nhoff);
+ if (ip_is_fragment(ip))
+ return -EPROTONOSUPPORT;
+ EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + 4 * ip->ihl + 4);
+ ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
+
+ efx_filter_init_rx(&spec, EFX_FILTER_PRI_HINT, 0, rxq_index);
+ rc = efx_filter_set_ipv4_full(&spec, ip->protocol,
+ ip->daddr, ports[1], ip->saddr, ports[0]);
+ if (rc)
+ return rc;
+
+ rc = efx_filter_insert_filter(efx, &spec, true);
+ if (rc < 0)
+ return rc;
+
+ /* Remember this so we can check whether to expire the filter later */
+ state->rps_flow_id[rc] = flow_id;
+ channel = efx_get_channel(efx, skb_get_rx_queue(skb));
+ ++channel->rfs_filters_added;
+
+ netif_info(efx, rx_status, efx->net_dev,
+ "steering %s %pI4:%u:%pI4:%u to queue %u [flow %u filter %d]\n",
+ (ip->protocol == IPPROTO_TCP) ? "TCP" : "UDP",
+ &ip->saddr, ntohs(ports[0]), &ip->daddr, ntohs(ports[1]),
+ rxq_index, flow_id, rc);
+
+ return rc;
+}
+
+bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota)
+{
+ struct efx_filter_state *state = efx->filter_state;
+ struct efx_filter_table *table = &state->table[EFX_FILTER_TABLE_RX_IP];
+ unsigned mask = table->size - 1;
+ unsigned index;
+ unsigned stop;
+
+ if (!spin_trylock_bh(&state->lock))
+ return false;
+
+ index = state->rps_expire_index;
+ stop = (index + quota) & mask;
+
+ while (index != stop) {
+ if (test_bit(index, table->used_bitmap) &&
+ table->spec[index].priority == EFX_FILTER_PRI_HINT &&
+ rps_may_expire_flow(efx->net_dev,
+ table->spec[index].dmaq_id,
+ state->rps_flow_id[index], index)) {
+ netif_info(efx, rx_status, efx->net_dev,
+ "expiring filter %d [flow %u]\n",
+ index, state->rps_flow_id[index]);
+ efx_filter_table_clear_entry(efx, table, index);
+ }
+ index = (index + 1) & mask;
+ }
+
+ state->rps_expire_index = stop;
+ if (table->used == 0)
+ efx_filter_table_reset_search_depth(table);
+
+ spin_unlock_bh(&state->lock);
+ return true;
+}
+
+#endif /* CONFIG_RFS_ACCEL */
diff --git a/drivers/net/ethernet/sfc/filter.h b/drivers/net/ethernet/sfc/filter.h
new file mode 100644
index 000000000000..872f2132a496
--- /dev/null
+++ b/drivers/net/ethernet/sfc/filter.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_FILTER_H
+#define EFX_FILTER_H
+
+#include <linux/types.h>
+
+/**
+ * enum efx_filter_type - type of hardware filter
+ * @EFX_FILTER_TCP_FULL: Matching TCP/IPv4 4-tuple
+ * @EFX_FILTER_TCP_WILD: Matching TCP/IPv4 destination (host, port)
+ * @EFX_FILTER_UDP_FULL: Matching UDP/IPv4 4-tuple
+ * @EFX_FILTER_UDP_WILD: Matching UDP/IPv4 destination (host, port)
+ * @EFX_FILTER_MAC_FULL: Matching Ethernet destination MAC address, VID
+ * @EFX_FILTER_MAC_WILD: Matching Ethernet destination MAC address
+ * @EFX_FILTER_UNSPEC: Match type is unspecified
+ *
+ * Falcon NICs only support the TCP/IPv4 and UDP/IPv4 filter types.
+ */
+enum efx_filter_type {
+ EFX_FILTER_TCP_FULL = 0,
+ EFX_FILTER_TCP_WILD,
+ EFX_FILTER_UDP_FULL,
+ EFX_FILTER_UDP_WILD,
+ EFX_FILTER_MAC_FULL = 4,
+ EFX_FILTER_MAC_WILD,
+ EFX_FILTER_TYPE_COUNT, /* number of specific types */
+ EFX_FILTER_UNSPEC = 0xf,
+};
+
+/**
+ * enum efx_filter_priority - priority of a hardware filter specification
+ * @EFX_FILTER_PRI_HINT: Performance hint
+ * @EFX_FILTER_PRI_MANUAL: Manually configured filter
+ * @EFX_FILTER_PRI_REQUIRED: Required for correct behaviour
+ */
+enum efx_filter_priority {
+ EFX_FILTER_PRI_HINT = 0,
+ EFX_FILTER_PRI_MANUAL,
+ EFX_FILTER_PRI_REQUIRED,
+};
+
+/**
+ * enum efx_filter_flags - flags for hardware filter specifications
+ * @EFX_FILTER_FLAG_RX_RSS: Use RSS to spread across multiple queues.
+ * By default, matching packets will be delivered only to the
+ * specified queue. If this flag is set, they will be delivered
+ * to a range of queues offset from the specified queue number
+ * according to the indirection table.
+ * @EFX_FILTER_FLAG_RX_SCATTER: Enable DMA scatter on the receiving
+ * queue.
+ * @EFX_FILTER_FLAG_RX_OVERRIDE_IP: Enables a MAC filter to override
+ * any IP filter that matches the same packet. By default, IP
+ * filters take precedence.
+ * @EFX_FILTER_FLAG_RX: Filter is for RX
+ */
+enum efx_filter_flags {
+ EFX_FILTER_FLAG_RX_RSS = 0x01,
+ EFX_FILTER_FLAG_RX_SCATTER = 0x02,
+ EFX_FILTER_FLAG_RX_OVERRIDE_IP = 0x04,
+ EFX_FILTER_FLAG_RX = 0x08,
+};
+
+/**
+ * struct efx_filter_spec - specification for a hardware filter
+ * @type: Type of match to be performed, from &enum efx_filter_type
+ * @priority: Priority of the filter, from &enum efx_filter_priority
+ * @flags: Miscellaneous flags, from &enum efx_filter_flags
+ * @dmaq_id: Source/target queue index
+ * @data: Match data (type-dependent)
+ *
+ * Use the efx_filter_set_*() functions to initialise the @type and
+ * @data fields.
+ */
+struct efx_filter_spec {
+ u8 type:4;
+ u8 priority:4;
+ u8 flags;
+ u16 dmaq_id;
+ u32 data[3];
+};
+
+static inline void efx_filter_init_rx(struct efx_filter_spec *spec,
+ enum efx_filter_priority priority,
+ enum efx_filter_flags flags,
+ unsigned rxq_id)
+{
+ spec->type = EFX_FILTER_UNSPEC;
+ spec->priority = priority;
+ spec->flags = EFX_FILTER_FLAG_RX | flags;
+ spec->dmaq_id = rxq_id;
+}
+
+extern int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
+ __be32 host, __be16 port);
+extern int efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
+ __be32 host, __be16 port,
+ __be32 rhost, __be16 rport);
+extern int efx_filter_set_eth_local(struct efx_filter_spec *spec,
+ u16 vid, const u8 *addr);
+enum {
+ EFX_FILTER_VID_UNSPEC = 0xffff,
+};
+
+#endif /* EFX_FILTER_H */
diff --git a/drivers/net/ethernet/sfc/io.h b/drivers/net/ethernet/sfc/io.h
new file mode 100644
index 000000000000..cc978803d484
--- /dev/null
+++ b/drivers/net/ethernet/sfc/io.h
@@ -0,0 +1,299 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_IO_H
+#define EFX_IO_H
+
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+/**************************************************************************
+ *
+ * NIC register I/O
+ *
+ **************************************************************************
+ *
+ * Notes on locking strategy:
+ *
+ * Most CSRs are 128-bit (oword) and therefore cannot be read or
+ * written atomically. Access from the host is buffered by the Bus
+ * Interface Unit (BIU). Whenever the host reads from the lowest
+ * address of such a register, or from the address of a different such
+ * register, the BIU latches the register's value. Subsequent reads
+ * from higher addresses of the same register will read the latched
+ * value. Whenever the host writes part of such a register, the BIU
+ * collects the written value and does not write to the underlying
+ * register until all 4 dwords have been written. A similar buffering
+ * scheme applies to host access to the NIC's 64-bit SRAM.
+ *
+ * Access to different CSRs and 64-bit SRAM words must be serialised,
+ * since interleaved access can result in lost writes or lost
+ * information from read-to-clear fields. We use efx_nic::biu_lock
+ * for this. (We could use separate locks for read and write, but
+ * this is not normally a performance bottleneck.)
+ *
+ * The DMA descriptor pointers (RX_DESC_UPD and TX_DESC_UPD) are
+ * 128-bit but are special-cased in the BIU to avoid the need for
+ * locking in the host:
+ *
+ * - They are write-only.
+ * - The semantics of writing to these registers are such that
+ * replacing the low 96 bits with zero does not affect functionality.
+ * - If the host writes to the last dword address of such a register
+ * (i.e. the high 32 bits) the underlying register will always be
+ * written. If the collector and the current write together do not
+ * provide values for all 128 bits of the register, the low 96 bits
+ * will be written as zero.
+ * - If the host writes to the address of any other part of such a
+ * register while the collector already holds values for some other
+ * register, the write is discarded and the collector maintains its
+ * current state.
+ */
+
+#if BITS_PER_LONG == 64
+#define EFX_USE_QWORD_IO 1
+#endif
+
+#ifdef EFX_USE_QWORD_IO
+static inline void _efx_writeq(struct efx_nic *efx, __le64 value,
+ unsigned int reg)
+{
+ __raw_writeq((__force u64)value, efx->membase + reg);
+}
+static inline __le64 _efx_readq(struct efx_nic *efx, unsigned int reg)
+{
+ return (__force __le64)__raw_readq(efx->membase + reg);
+}
+#endif
+
+static inline void _efx_writed(struct efx_nic *efx, __le32 value,
+ unsigned int reg)
+{
+ __raw_writel((__force u32)value, efx->membase + reg);
+}
+static inline __le32 _efx_readd(struct efx_nic *efx, unsigned int reg)
+{
+ return (__force __le32)__raw_readl(efx->membase + reg);
+}
+
+/* Write a normal 128-bit CSR, locking as appropriate. */
+static inline void efx_writeo(struct efx_nic *efx, efx_oword_t *value,
+ unsigned int reg)
+{
+ unsigned long flags __attribute__ ((unused));
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "writing register %x with " EFX_OWORD_FMT "\n", reg,
+ EFX_OWORD_VAL(*value));
+
+ spin_lock_irqsave(&efx->biu_lock, flags);
+#ifdef EFX_USE_QWORD_IO
+ _efx_writeq(efx, value->u64[0], reg + 0);
+ _efx_writeq(efx, value->u64[1], reg + 8);
+#else
+ _efx_writed(efx, value->u32[0], reg + 0);
+ _efx_writed(efx, value->u32[1], reg + 4);
+ _efx_writed(efx, value->u32[2], reg + 8);
+ _efx_writed(efx, value->u32[3], reg + 12);
+#endif
+ wmb();
+ mmiowb();
+ spin_unlock_irqrestore(&efx->biu_lock, flags);
+}
+
+/* Write 64-bit SRAM through the supplied mapping, locking as appropriate. */
+static inline void efx_sram_writeq(struct efx_nic *efx, void __iomem *membase,
+ efx_qword_t *value, unsigned int index)
+{
+ unsigned int addr = index * sizeof(*value);
+ unsigned long flags __attribute__ ((unused));
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "writing SRAM address %x with " EFX_QWORD_FMT "\n",
+ addr, EFX_QWORD_VAL(*value));
+
+ spin_lock_irqsave(&efx->biu_lock, flags);
+#ifdef EFX_USE_QWORD_IO
+ __raw_writeq((__force u64)value->u64[0], membase + addr);
+#else
+ __raw_writel((__force u32)value->u32[0], membase + addr);
+ __raw_writel((__force u32)value->u32[1], membase + addr + 4);
+#endif
+ wmb();
+ mmiowb();
+ spin_unlock_irqrestore(&efx->biu_lock, flags);
+}
+
+/* Write a 32-bit CSR or the last dword of a special 128-bit CSR */
+static inline void efx_writed(struct efx_nic *efx, efx_dword_t *value,
+ unsigned int reg)
+{
+ netif_vdbg(efx, hw, efx->net_dev,
+ "writing register %x with "EFX_DWORD_FMT"\n",
+ reg, EFX_DWORD_VAL(*value));
+
+ /* No lock required */
+ _efx_writed(efx, value->u32[0], reg);
+ wmb();
+}
+
+/* Read a 128-bit CSR, locking as appropriate. */
+static inline void efx_reado(struct efx_nic *efx, efx_oword_t *value,
+ unsigned int reg)
+{
+ unsigned long flags __attribute__ ((unused));
+
+ spin_lock_irqsave(&efx->biu_lock, flags);
+ value->u32[0] = _efx_readd(efx, reg + 0);
+ rmb();
+ value->u32[1] = _efx_readd(efx, reg + 4);
+ value->u32[2] = _efx_readd(efx, reg + 8);
+ value->u32[3] = _efx_readd(efx, reg + 12);
+ spin_unlock_irqrestore(&efx->biu_lock, flags);
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "read from register %x, got " EFX_OWORD_FMT "\n", reg,
+ EFX_OWORD_VAL(*value));
+}
+
+/* Read 64-bit SRAM through the supplied mapping, locking as appropriate. */
+static inline void efx_sram_readq(struct efx_nic *efx, void __iomem *membase,
+ efx_qword_t *value, unsigned int index)
+{
+ unsigned int addr = index * sizeof(*value);
+ unsigned long flags __attribute__ ((unused));
+
+ spin_lock_irqsave(&efx->biu_lock, flags);
+#ifdef EFX_USE_QWORD_IO
+ value->u64[0] = (__force __le64)__raw_readq(membase + addr);
+#else
+ value->u32[0] = (__force __le32)__raw_readl(membase + addr);
+ rmb();
+ value->u32[1] = (__force __le32)__raw_readl(membase + addr + 4);
+#endif
+ spin_unlock_irqrestore(&efx->biu_lock, flags);
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "read from SRAM address %x, got "EFX_QWORD_FMT"\n",
+ addr, EFX_QWORD_VAL(*value));
+}
+
+/* Read a 32-bit CSR or SRAM */
+static inline void efx_readd(struct efx_nic *efx, efx_dword_t *value,
+ unsigned int reg)
+{
+ value->u32[0] = _efx_readd(efx, reg);
+ netif_vdbg(efx, hw, efx->net_dev,
+ "read from register %x, got "EFX_DWORD_FMT"\n",
+ reg, EFX_DWORD_VAL(*value));
+}
+
+/* Write a 128-bit CSR forming part of a table */
+static inline void efx_writeo_table(struct efx_nic *efx, efx_oword_t *value,
+ unsigned int reg, unsigned int index)
+{
+ efx_writeo(efx, value, reg + index * sizeof(efx_oword_t));
+}
+
+/* Read a 128-bit CSR forming part of a table */
+static inline void efx_reado_table(struct efx_nic *efx, efx_oword_t *value,
+ unsigned int reg, unsigned int index)
+{
+ efx_reado(efx, value, reg + index * sizeof(efx_oword_t));
+}
+
+/* Write a 32-bit CSR forming part of a table, or 32-bit SRAM */
+static inline void efx_writed_table(struct efx_nic *efx, efx_dword_t *value,
+ unsigned int reg, unsigned int index)
+{
+ efx_writed(efx, value, reg + index * sizeof(efx_oword_t));
+}
+
+/* Read a 32-bit CSR forming part of a table, or 32-bit SRAM */
+static inline void efx_readd_table(struct efx_nic *efx, efx_dword_t *value,
+ unsigned int reg, unsigned int index)
+{
+ efx_readd(efx, value, reg + index * sizeof(efx_dword_t));
+}
+
+/* Page-mapped register block size */
+#define EFX_PAGE_BLOCK_SIZE 0x2000
+
+/* Calculate offset to page-mapped register block */
+#define EFX_PAGED_REG(page, reg) \
+ ((page) * EFX_PAGE_BLOCK_SIZE + (reg))
+
+/* Write the whole of RX_DESC_UPD or TX_DESC_UPD */
+static inline void _efx_writeo_page(struct efx_nic *efx, efx_oword_t *value,
+ unsigned int reg, unsigned int page)
+{
+ reg = EFX_PAGED_REG(page, reg);
+
+ netif_vdbg(efx, hw, efx->net_dev,
+ "writing register %x with " EFX_OWORD_FMT "\n", reg,
+ EFX_OWORD_VAL(*value));
+
+#ifdef EFX_USE_QWORD_IO
+ _efx_writeq(efx, value->u64[0], reg + 0);
+ _efx_writeq(efx, value->u64[1], reg + 8);
+#else
+ _efx_writed(efx, value->u32[0], reg + 0);
+ _efx_writed(efx, value->u32[1], reg + 4);
+ _efx_writed(efx, value->u32[2], reg + 8);
+ _efx_writed(efx, value->u32[3], reg + 12);
+#endif
+ wmb();
+}
+#define efx_writeo_page(efx, value, reg, page) \
+ _efx_writeo_page(efx, value, \
+ reg + \
+ BUILD_BUG_ON_ZERO((reg) != 0x830 && (reg) != 0xa10), \
+ page)
+
+/* Write a page-mapped 32-bit CSR (EVQ_RPTR or the high bits of
+ * RX_DESC_UPD or TX_DESC_UPD)
+ */
+static inline void _efx_writed_page(struct efx_nic *efx, efx_dword_t *value,
+ unsigned int reg, unsigned int page)
+{
+ efx_writed(efx, value, EFX_PAGED_REG(page, reg));
+}
+#define efx_writed_page(efx, value, reg, page) \
+ _efx_writed_page(efx, value, \
+ reg + \
+ BUILD_BUG_ON_ZERO((reg) != 0x400 && (reg) != 0x83c \
+ && (reg) != 0xa1c), \
+ page)
+
+/* Write TIMER_COMMAND. This is a page-mapped 32-bit CSR, but a bug
+ * in the BIU means that writes to TIMER_COMMAND[0] invalidate the
+ * collector register.
+ */
+static inline void _efx_writed_page_locked(struct efx_nic *efx,
+ efx_dword_t *value,
+ unsigned int reg,
+ unsigned int page)
+{
+ unsigned long flags __attribute__ ((unused));
+
+ if (page == 0) {
+ spin_lock_irqsave(&efx->biu_lock, flags);
+ efx_writed(efx, value, EFX_PAGED_REG(page, reg));
+ spin_unlock_irqrestore(&efx->biu_lock, flags);
+ } else {
+ efx_writed(efx, value, EFX_PAGED_REG(page, reg));
+ }
+}
+#define efx_writed_page_locked(efx, value, reg, page) \
+ _efx_writed_page_locked(efx, value, \
+ reg + BUILD_BUG_ON_ZERO((reg) != 0x420), \
+ page)
+
+#endif /* EFX_IO_H */
diff --git a/drivers/net/ethernet/sfc/mac.h b/drivers/net/ethernet/sfc/mac.h
new file mode 100644
index 000000000000..d6a255d0856b
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mac.h
@@ -0,0 +1,21 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2009 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_MAC_H
+#define EFX_MAC_H
+
+#include "net_driver.h"
+
+extern const struct efx_mac_operations falcon_xmac_operations;
+extern const struct efx_mac_operations efx_mcdi_mac_operations;
+extern int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
+ u32 dma_len, int enable, int clear);
+
+#endif
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
new file mode 100644
index 000000000000..3dd45ed61f0a
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -0,0 +1,1203 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2008-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/delay.h>
+#include "net_driver.h"
+#include "nic.h"
+#include "io.h"
+#include "regs.h"
+#include "mcdi_pcol.h"
+#include "phy.h"
+
+/**************************************************************************
+ *
+ * Management-Controller-to-Driver Interface
+ *
+ **************************************************************************
+ */
+
+/* Software-defined structure to the shared-memory */
+#define CMD_NOTIFY_PORT0 0
+#define CMD_NOTIFY_PORT1 4
+#define CMD_PDU_PORT0 0x008
+#define CMD_PDU_PORT1 0x108
+#define REBOOT_FLAG_PORT0 0x3f8
+#define REBOOT_FLAG_PORT1 0x3fc
+
+#define MCDI_RPC_TIMEOUT 10 /*seconds */
+
+#define MCDI_PDU(efx) \
+ (efx_port_num(efx) ? CMD_PDU_PORT1 : CMD_PDU_PORT0)
+#define MCDI_DOORBELL(efx) \
+ (efx_port_num(efx) ? CMD_NOTIFY_PORT1 : CMD_NOTIFY_PORT0)
+#define MCDI_REBOOT_FLAG(efx) \
+ (efx_port_num(efx) ? REBOOT_FLAG_PORT1 : REBOOT_FLAG_PORT0)
+
+#define SEQ_MASK \
+ EFX_MASK32(EFX_WIDTH(MCDI_HEADER_SEQ))
+
+static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx)
+{
+ struct siena_nic_data *nic_data;
+ EFX_BUG_ON_PARANOID(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
+ nic_data = efx->nic_data;
+ return &nic_data->mcdi;
+}
+
+static inline void
+efx_mcdi_readd(struct efx_nic *efx, efx_dword_t *value, unsigned reg)
+{
+ struct siena_nic_data *nic_data = efx->nic_data;
+ value->u32[0] = (__force __le32)__raw_readl(nic_data->mcdi_smem + reg);
+}
+
+static inline void
+efx_mcdi_writed(struct efx_nic *efx, const efx_dword_t *value, unsigned reg)
+{
+ struct siena_nic_data *nic_data = efx->nic_data;
+ __raw_writel((__force u32)value->u32[0], nic_data->mcdi_smem + reg);
+}
+
+void efx_mcdi_init(struct efx_nic *efx)
+{
+ struct efx_mcdi_iface *mcdi;
+
+ if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
+ return;
+
+ mcdi = efx_mcdi(efx);
+ init_waitqueue_head(&mcdi->wq);
+ spin_lock_init(&mcdi->iface_lock);
+ atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT);
+ mcdi->mode = MCDI_MODE_POLL;
+
+ (void) efx_mcdi_poll_reboot(efx);
+}
+
+static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd,
+ const u8 *inbuf, size_t inlen)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+ unsigned pdu = MCDI_PDU(efx);
+ unsigned doorbell = MCDI_DOORBELL(efx);
+ unsigned int i;
+ efx_dword_t hdr;
+ u32 xflags, seqno;
+
+ BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
+ BUG_ON(inlen & 3 || inlen >= 0x100);
+
+ seqno = mcdi->seqno & SEQ_MASK;
+ xflags = 0;
+ if (mcdi->mode == MCDI_MODE_EVENTS)
+ xflags |= MCDI_HEADER_XFLAGS_EVREQ;
+
+ EFX_POPULATE_DWORD_6(hdr,
+ MCDI_HEADER_RESPONSE, 0,
+ MCDI_HEADER_RESYNC, 1,
+ MCDI_HEADER_CODE, cmd,
+ MCDI_HEADER_DATALEN, inlen,
+ MCDI_HEADER_SEQ, seqno,
+ MCDI_HEADER_XFLAGS, xflags);
+
+ efx_mcdi_writed(efx, &hdr, pdu);
+
+ for (i = 0; i < inlen; i += 4)
+ efx_mcdi_writed(efx, (const efx_dword_t *)(inbuf + i),
+ pdu + 4 + i);
+
+ /* ring the doorbell with a distinctive value */
+ EFX_POPULATE_DWORD_1(hdr, EFX_DWORD_0, 0x45789abc);
+ efx_mcdi_writed(efx, &hdr, doorbell);
+}
+
+static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+ unsigned int pdu = MCDI_PDU(efx);
+ int i;
+
+ BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
+ BUG_ON(outlen & 3 || outlen >= 0x100);
+
+ for (i = 0; i < outlen; i += 4)
+ efx_mcdi_readd(efx, (efx_dword_t *)(outbuf + i), pdu + 4 + i);
+}
+
+static int efx_mcdi_poll(struct efx_nic *efx)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+ unsigned int time, finish;
+ unsigned int respseq, respcmd, error;
+ unsigned int pdu = MCDI_PDU(efx);
+ unsigned int rc, spins;
+ efx_dword_t reg;
+
+ /* Check for a reboot atomically with respect to efx_mcdi_copyout() */
+ rc = -efx_mcdi_poll_reboot(efx);
+ if (rc)
+ goto out;
+
+ /* Poll for completion. Poll quickly (once a us) for the 1st jiffy,
+ * because generally mcdi responses are fast. After that, back off
+ * and poll once a jiffy (approximately)
+ */
+ spins = TICK_USEC;
+ finish = get_seconds() + MCDI_RPC_TIMEOUT;
+
+ while (1) {
+ if (spins != 0) {
+ --spins;
+ udelay(1);
+ } else {
+ schedule_timeout_uninterruptible(1);
+ }
+
+ time = get_seconds();
+
+ efx_mcdi_readd(efx, &reg, pdu);
+
+ /* All 1's indicates that shared memory is in reset (and is
+ * not a valid header). Wait for it to come out reset before
+ * completing the command */
+ if (EFX_DWORD_FIELD(reg, EFX_DWORD_0) != 0xffffffff &&
+ EFX_DWORD_FIELD(reg, MCDI_HEADER_RESPONSE))
+ break;
+
+ if (time >= finish)
+ return -ETIMEDOUT;
+ }
+
+ mcdi->resplen = EFX_DWORD_FIELD(reg, MCDI_HEADER_DATALEN);
+ respseq = EFX_DWORD_FIELD(reg, MCDI_HEADER_SEQ);
+ respcmd = EFX_DWORD_FIELD(reg, MCDI_HEADER_CODE);
+ error = EFX_DWORD_FIELD(reg, MCDI_HEADER_ERROR);
+
+ if (error && mcdi->resplen == 0) {
+ netif_err(efx, hw, efx->net_dev, "MC rebooted\n");
+ rc = EIO;
+ } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) {
+ netif_err(efx, hw, efx->net_dev,
+ "MC response mismatch tx seq 0x%x rx seq 0x%x\n",
+ respseq, mcdi->seqno);
+ rc = EIO;
+ } else if (error) {
+ efx_mcdi_readd(efx, &reg, pdu + 4);
+ switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) {
+#define TRANSLATE_ERROR(name) \
+ case MC_CMD_ERR_ ## name: \
+ rc = name; \
+ break
+ TRANSLATE_ERROR(ENOENT);
+ TRANSLATE_ERROR(EINTR);
+ TRANSLATE_ERROR(EACCES);
+ TRANSLATE_ERROR(EBUSY);
+ TRANSLATE_ERROR(EINVAL);
+ TRANSLATE_ERROR(EDEADLK);
+ TRANSLATE_ERROR(ENOSYS);
+ TRANSLATE_ERROR(ETIME);
+#undef TRANSLATE_ERROR
+ default:
+ rc = EIO;
+ break;
+ }
+ } else
+ rc = 0;
+
+out:
+ mcdi->resprc = rc;
+ if (rc)
+ mcdi->resplen = 0;
+
+ /* Return rc=0 like wait_event_timeout() */
+ return 0;
+}
+
+/* Test and clear MC-rebooted flag for this port/function */
+int efx_mcdi_poll_reboot(struct efx_nic *efx)
+{
+ unsigned int addr = MCDI_REBOOT_FLAG(efx);
+ efx_dword_t reg;
+ uint32_t value;
+
+ if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
+ return false;
+
+ efx_mcdi_readd(efx, &reg, addr);
+ value = EFX_DWORD_FIELD(reg, EFX_DWORD_0);
+
+ if (value == 0)
+ return 0;
+
+ EFX_ZERO_DWORD(reg);
+ efx_mcdi_writed(efx, &reg, addr);
+
+ if (value == MC_STATUS_DWORD_ASSERT)
+ return -EINTR;
+ else
+ return -EIO;
+}
+
+static void efx_mcdi_acquire(struct efx_mcdi_iface *mcdi)
+{
+ /* Wait until the interface becomes QUIESCENT and we win the race
+ * to mark it RUNNING. */
+ wait_event(mcdi->wq,
+ atomic_cmpxchg(&mcdi->state,
+ MCDI_STATE_QUIESCENT,
+ MCDI_STATE_RUNNING)
+ == MCDI_STATE_QUIESCENT);
+}
+
+static int efx_mcdi_await_completion(struct efx_nic *efx)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+
+ if (wait_event_timeout(
+ mcdi->wq,
+ atomic_read(&mcdi->state) == MCDI_STATE_COMPLETED,
+ msecs_to_jiffies(MCDI_RPC_TIMEOUT * 1000)) == 0)
+ return -ETIMEDOUT;
+
+ /* Check if efx_mcdi_set_mode() switched us back to polled completions.
+ * In which case, poll for completions directly. If efx_mcdi_ev_cpl()
+ * completed the request first, then we'll just end up completing the
+ * request again, which is safe.
+ *
+ * We need an smp_rmb() to synchronise with efx_mcdi_mode_poll(), which
+ * wait_event_timeout() implicitly provides.
+ */
+ if (mcdi->mode == MCDI_MODE_POLL)
+ return efx_mcdi_poll(efx);
+
+ return 0;
+}
+
+static bool efx_mcdi_complete(struct efx_mcdi_iface *mcdi)
+{
+ /* If the interface is RUNNING, then move to COMPLETED and wake any
+ * waiters. If the interface isn't in RUNNING then we've received a
+ * duplicate completion after we've already transitioned back to
+ * QUIESCENT. [A subsequent invocation would increment seqno, so would
+ * have failed the seqno check].
+ */
+ if (atomic_cmpxchg(&mcdi->state,
+ MCDI_STATE_RUNNING,
+ MCDI_STATE_COMPLETED) == MCDI_STATE_RUNNING) {
+ wake_up(&mcdi->wq);
+ return true;
+ }
+
+ return false;
+}
+
+static void efx_mcdi_release(struct efx_mcdi_iface *mcdi)
+{
+ atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT);
+ wake_up(&mcdi->wq);
+}
+
+static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno,
+ unsigned int datalen, unsigned int errno)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+ bool wake = false;
+
+ spin_lock(&mcdi->iface_lock);
+
+ if ((seqno ^ mcdi->seqno) & SEQ_MASK) {
+ if (mcdi->credits)
+ /* The request has been cancelled */
+ --mcdi->credits;
+ else
+ netif_err(efx, hw, efx->net_dev,
+ "MC response mismatch tx seq 0x%x rx "
+ "seq 0x%x\n", seqno, mcdi->seqno);
+ } else {
+ mcdi->resprc = errno;
+ mcdi->resplen = datalen;
+
+ wake = true;
+ }
+
+ spin_unlock(&mcdi->iface_lock);
+
+ if (wake)
+ efx_mcdi_complete(mcdi);
+}
+
+/* Issue the given command by writing the data into the shared memory PDU,
+ * ring the doorbell and wait for completion. Copyout the result. */
+int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
+ const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen,
+ size_t *outlen_actual)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+ int rc;
+ BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
+
+ efx_mcdi_acquire(mcdi);
+
+ /* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */
+ spin_lock_bh(&mcdi->iface_lock);
+ ++mcdi->seqno;
+ spin_unlock_bh(&mcdi->iface_lock);
+
+ efx_mcdi_copyin(efx, cmd, inbuf, inlen);
+
+ if (mcdi->mode == MCDI_MODE_POLL)
+ rc = efx_mcdi_poll(efx);
+ else
+ rc = efx_mcdi_await_completion(efx);
+
+ if (rc != 0) {
+ /* Close the race with efx_mcdi_ev_cpl() executing just too late
+ * and completing a request we've just cancelled, by ensuring
+ * that the seqno check therein fails.
+ */
+ spin_lock_bh(&mcdi->iface_lock);
+ ++mcdi->seqno;
+ ++mcdi->credits;
+ spin_unlock_bh(&mcdi->iface_lock);
+
+ netif_err(efx, hw, efx->net_dev,
+ "MC command 0x%x inlen %d mode %d timed out\n",
+ cmd, (int)inlen, mcdi->mode);
+ } else {
+ size_t resplen;
+
+ /* At the very least we need a memory barrier here to ensure
+ * we pick up changes from efx_mcdi_ev_cpl(). Protect against
+ * a spurious efx_mcdi_ev_cpl() running concurrently by
+ * acquiring the iface_lock. */
+ spin_lock_bh(&mcdi->iface_lock);
+ rc = -mcdi->resprc;
+ resplen = mcdi->resplen;
+ spin_unlock_bh(&mcdi->iface_lock);
+
+ if (rc == 0) {
+ efx_mcdi_copyout(efx, outbuf,
+ min(outlen, mcdi->resplen + 3) & ~0x3);
+ if (outlen_actual != NULL)
+ *outlen_actual = resplen;
+ } else if (cmd == MC_CMD_REBOOT && rc == -EIO)
+ ; /* Don't reset if MC_CMD_REBOOT returns EIO */
+ else if (rc == -EIO || rc == -EINTR) {
+ netif_err(efx, hw, efx->net_dev, "MC fatal error %d\n",
+ -rc);
+ efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
+ } else
+ netif_dbg(efx, hw, efx->net_dev,
+ "MC command 0x%x inlen %d failed rc=%d\n",
+ cmd, (int)inlen, -rc);
+ }
+
+ efx_mcdi_release(mcdi);
+ return rc;
+}
+
+void efx_mcdi_mode_poll(struct efx_nic *efx)
+{
+ struct efx_mcdi_iface *mcdi;
+
+ if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
+ return;
+
+ mcdi = efx_mcdi(efx);
+ if (mcdi->mode == MCDI_MODE_POLL)
+ return;
+
+ /* We can switch from event completion to polled completion, because
+ * mcdi requests are always completed in shared memory. We do this by
+ * switching the mode to POLL'd then completing the request.
+ * efx_mcdi_await_completion() will then call efx_mcdi_poll().
+ *
+ * We need an smp_wmb() to synchronise with efx_mcdi_await_completion(),
+ * which efx_mcdi_complete() provides for us.
+ */
+ mcdi->mode = MCDI_MODE_POLL;
+
+ efx_mcdi_complete(mcdi);
+}
+
+void efx_mcdi_mode_event(struct efx_nic *efx)
+{
+ struct efx_mcdi_iface *mcdi;
+
+ if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
+ return;
+
+ mcdi = efx_mcdi(efx);
+
+ if (mcdi->mode == MCDI_MODE_EVENTS)
+ return;
+
+ /* We can't switch from polled to event completion in the middle of a
+ * request, because the completion method is specified in the request.
+ * So acquire the interface to serialise the requestors. We don't need
+ * to acquire the iface_lock to change the mode here, but we do need a
+ * write memory barrier ensure that efx_mcdi_rpc() sees it, which
+ * efx_mcdi_acquire() provides.
+ */
+ efx_mcdi_acquire(mcdi);
+ mcdi->mode = MCDI_MODE_EVENTS;
+ efx_mcdi_release(mcdi);
+}
+
+static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
+{
+ struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+
+ /* If there is an outstanding MCDI request, it has been terminated
+ * either by a BADASSERT or REBOOT event. If the mcdi interface is
+ * in polled mode, then do nothing because the MC reboot handler will
+ * set the header correctly. However, if the mcdi interface is waiting
+ * for a CMDDONE event it won't receive it [and since all MCDI events
+ * are sent to the same queue, we can't be racing with
+ * efx_mcdi_ev_cpl()]
+ *
+ * There's a race here with efx_mcdi_rpc(), because we might receive
+ * a REBOOT event *before* the request has been copied out. In polled
+ * mode (during startup) this is irrelevant, because efx_mcdi_complete()
+ * is ignored. In event mode, this condition is just an edge-case of
+ * receiving a REBOOT event after posting the MCDI request. Did the mc
+ * reboot before or after the copyout? The best we can do always is
+ * just return failure.
+ */
+ spin_lock(&mcdi->iface_lock);
+ if (efx_mcdi_complete(mcdi)) {
+ if (mcdi->mode == MCDI_MODE_EVENTS) {
+ mcdi->resprc = rc;
+ mcdi->resplen = 0;
+ ++mcdi->credits;
+ }
+ } else
+ /* Nobody was waiting for an MCDI request, so trigger a reset */
+ efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
+
+ spin_unlock(&mcdi->iface_lock);
+}
+
+static unsigned int efx_mcdi_event_link_speed[] = {
+ [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100,
+ [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000,
+ [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000,
+};
+
+
+static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
+{
+ u32 flags, fcntl, speed, lpa;
+
+ speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED);
+ EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed));
+ speed = efx_mcdi_event_link_speed[speed];
+
+ flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS);
+ fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL);
+ lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP);
+
+ /* efx->link_state is only modified by efx_mcdi_phy_get_link(),
+ * which is only run after flushing the event queues. Therefore, it
+ * is safe to modify the link state outside of the mac_lock here.
+ */
+ efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl);
+
+ efx_mcdi_phy_check_fcntl(efx, lpa);
+
+ efx_link_status_changed(efx);
+}
+
+static const char *sensor_names[] = {
+ [MC_CMD_SENSOR_CONTROLLER_TEMP] = "Controller temp. sensor",
+ [MC_CMD_SENSOR_PHY_COMMON_TEMP] = "PHY shared temp. sensor",
+ [MC_CMD_SENSOR_CONTROLLER_COOLING] = "Controller cooling",
+ [MC_CMD_SENSOR_PHY0_TEMP] = "PHY 0 temp. sensor",
+ [MC_CMD_SENSOR_PHY0_COOLING] = "PHY 0 cooling",
+ [MC_CMD_SENSOR_PHY1_TEMP] = "PHY 1 temp. sensor",
+ [MC_CMD_SENSOR_PHY1_COOLING] = "PHY 1 cooling",
+ [MC_CMD_SENSOR_IN_1V0] = "1.0V supply sensor",
+ [MC_CMD_SENSOR_IN_1V2] = "1.2V supply sensor",
+ [MC_CMD_SENSOR_IN_1V8] = "1.8V supply sensor",
+ [MC_CMD_SENSOR_IN_2V5] = "2.5V supply sensor",
+ [MC_CMD_SENSOR_IN_3V3] = "3.3V supply sensor",
+ [MC_CMD_SENSOR_IN_12V0] = "12V supply sensor"
+};
+
+static const char *sensor_status_names[] = {
+ [MC_CMD_SENSOR_STATE_OK] = "OK",
+ [MC_CMD_SENSOR_STATE_WARNING] = "Warning",
+ [MC_CMD_SENSOR_STATE_FATAL] = "Fatal",
+ [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure",
+};
+
+static void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev)
+{
+ unsigned int monitor, state, value;
+ const char *name, *state_txt;
+ monitor = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR);
+ state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE);
+ value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE);
+ /* Deal gracefully with the board having more drivers than we
+ * know about, but do not expect new sensor states. */
+ name = (monitor >= ARRAY_SIZE(sensor_names))
+ ? "No sensor name available" :
+ sensor_names[monitor];
+ EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names));
+ state_txt = sensor_status_names[state];
+
+ netif_err(efx, hw, efx->net_dev,
+ "Sensor %d (%s) reports condition '%s' for raw value %d\n",
+ monitor, name, state_txt, value);
+}
+
+/* Called from falcon_process_eventq for MCDI events */
+void efx_mcdi_process_event(struct efx_channel *channel,
+ efx_qword_t *event)
+{
+ struct efx_nic *efx = channel->efx;
+ int code = EFX_QWORD_FIELD(*event, MCDI_EVENT_CODE);
+ u32 data = EFX_QWORD_FIELD(*event, MCDI_EVENT_DATA);
+
+ switch (code) {
+ case MCDI_EVENT_CODE_BADSSERT:
+ netif_err(efx, hw, efx->net_dev,
+ "MC watchdog or assertion failure at 0x%x\n", data);
+ efx_mcdi_ev_death(efx, EINTR);
+ break;
+
+ case MCDI_EVENT_CODE_PMNOTICE:
+ netif_info(efx, wol, efx->net_dev, "MCDI PM event.\n");
+ break;
+
+ case MCDI_EVENT_CODE_CMDDONE:
+ efx_mcdi_ev_cpl(efx,
+ MCDI_EVENT_FIELD(*event, CMDDONE_SEQ),
+ MCDI_EVENT_FIELD(*event, CMDDONE_DATALEN),
+ MCDI_EVENT_FIELD(*event, CMDDONE_ERRNO));
+ break;
+
+ case MCDI_EVENT_CODE_LINKCHANGE:
+ efx_mcdi_process_link_change(efx, event);
+ break;
+ case MCDI_EVENT_CODE_SENSOREVT:
+ efx_mcdi_sensor_event(efx, event);
+ break;
+ case MCDI_EVENT_CODE_SCHEDERR:
+ netif_info(efx, hw, efx->net_dev,
+ "MC Scheduler error address=0x%x\n", data);
+ break;
+ case MCDI_EVENT_CODE_REBOOT:
+ netif_info(efx, hw, efx->net_dev, "MC Reboot\n");
+ efx_mcdi_ev_death(efx, EIO);
+ break;
+ case MCDI_EVENT_CODE_MAC_STATS_DMA:
+ /* MAC stats are gather lazily. We can ignore this. */
+ break;
+
+ default:
+ netif_err(efx, hw, efx->net_dev, "Unknown MCDI event 0x%x\n",
+ code);
+ }
+}
+
+/**************************************************************************
+ *
+ * Specific request functions
+ *
+ **************************************************************************
+ */
+
+void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len)
+{
+ u8 outbuf[ALIGN(MC_CMD_GET_VERSION_V1_OUT_LEN, 4)];
+ size_t outlength;
+ const __le16 *ver_words;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_VERSION_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, NULL, 0,
+ outbuf, sizeof(outbuf), &outlength);
+ if (rc)
+ goto fail;
+
+ if (outlength < MC_CMD_GET_VERSION_V1_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ ver_words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_OUT_VERSION);
+ snprintf(buf, len, "%u.%u.%u.%u",
+ le16_to_cpu(ver_words[0]), le16_to_cpu(ver_words[1]),
+ le16_to_cpu(ver_words[2]), le16_to_cpu(ver_words[3]));
+ return;
+
+fail:
+ netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ buf[0] = 0;
+}
+
+int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
+ bool *was_attached)
+{
+ u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN];
+ u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE,
+ driver_operating ? 1 : 0);
+ MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+ if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ if (was_attached != NULL)
+ *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
+ return 0;
+
+fail:
+ netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
+ u16 *fw_subtype_list)
+{
+ uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LEN];
+ size_t outlen;
+ int port_num = efx_port_num(efx);
+ int offset;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_BOARD_CFG, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ offset = (port_num)
+ ? MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST
+ : MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST;
+ if (mac_address)
+ memcpy(mac_address, outbuf + offset, ETH_ALEN);
+ if (fw_subtype_list)
+ memcpy(fw_subtype_list,
+ outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
+ MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN);
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d len=%d\n",
+ __func__, rc, (int)outlen);
+
+ return rc;
+}
+
+int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq)
+{
+ u8 inbuf[MC_CMD_LOG_CTRL_IN_LEN];
+ u32 dest = 0;
+ int rc;
+
+ if (uart)
+ dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_UART;
+ if (evq)
+ dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ;
+
+ MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST, dest);
+ MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST_EVQ, dest_evq);
+
+ BUILD_BUG_ON(MC_CMD_LOG_CTRL_OUT_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_LOG_CTRL, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out)
+{
+ u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+ if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ *nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES);
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
+ size_t *size_out, size_t *erase_size_out,
+ bool *protected_out)
+{
+ u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN];
+ u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+ if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ *size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE);
+ *erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE);
+ *protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) &
+ (1 << MC_CMD_NVRAM_PROTECTED_LBN));
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type)
+{
+ u8 inbuf[MC_CMD_NVRAM_UPDATE_START_IN_LEN];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_START_IN_TYPE, type);
+
+ BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_START_OUT_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_START, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
+ loff_t offset, u8 *buffer, size_t length)
+{
+ u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN];
+ u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_TYPE, type);
+ MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset);
+ MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_LENGTH, length);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_READ, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ memcpy(buffer, MCDI_PTR(outbuf, NVRAM_READ_OUT_READ_BUFFER), length);
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
+ loff_t offset, const u8 *buffer, size_t length)
+{
+ u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type);
+ MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset);
+ MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_LENGTH, length);
+ memcpy(MCDI_PTR(inbuf, NVRAM_WRITE_IN_WRITE_BUFFER), buffer, length);
+
+ BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf,
+ ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
+ loff_t offset, size_t length)
+{
+ u8 inbuf[MC_CMD_NVRAM_ERASE_IN_LEN];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_TYPE, type);
+ MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset);
+ MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_LENGTH, length);
+
+ BUILD_BUG_ON(MC_CMD_NVRAM_ERASE_OUT_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_ERASE, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type)
+{
+ u8 inbuf[MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_FINISH_IN_TYPE, type);
+
+ BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_FINISH, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type)
+{
+ u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN];
+ u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), NULL);
+ if (rc)
+ return rc;
+
+ switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) {
+ case MC_CMD_NVRAM_TEST_PASS:
+ case MC_CMD_NVRAM_TEST_NOTSUPP:
+ return 0;
+ default:
+ return -EIO;
+ }
+}
+
+int efx_mcdi_nvram_test_all(struct efx_nic *efx)
+{
+ u32 nvram_types;
+ unsigned int type;
+ int rc;
+
+ rc = efx_mcdi_nvram_types(efx, &nvram_types);
+ if (rc)
+ goto fail1;
+
+ type = 0;
+ while (nvram_types != 0) {
+ if (nvram_types & 1) {
+ rc = efx_mcdi_nvram_test(efx, type);
+ if (rc)
+ goto fail2;
+ }
+ type++;
+ nvram_types >>= 1;
+ }
+
+ return 0;
+
+fail2:
+ netif_err(efx, hw, efx->net_dev, "%s: failed type=%u\n",
+ __func__, type);
+fail1:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int efx_mcdi_read_assertion(struct efx_nic *efx)
+{
+ u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN];
+ u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN];
+ unsigned int flags, index, ofst;
+ const char *reason;
+ size_t outlen;
+ int retry;
+ int rc;
+
+ /* Attempt to read any stored assertion state before we reboot
+ * the mcfw out of the assertion handler. Retry twice, once
+ * because a boot-time assertion might cause this command to fail
+ * with EINTR. And once again because GET_ASSERTS can race with
+ * MC_CMD_REBOOT running on the other port. */
+ retry = 2;
+ do {
+ MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1);
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS,
+ inbuf, MC_CMD_GET_ASSERTS_IN_LEN,
+ outbuf, sizeof(outbuf), &outlen);
+ } while ((rc == -EINTR || rc == -EIO) && retry-- > 0);
+
+ if (rc)
+ return rc;
+ if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN)
+ return -EIO;
+
+ /* Print out any recorded assertion state */
+ flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS);
+ if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
+ return 0;
+
+ reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
+ ? "system-level assertion"
+ : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
+ ? "thread-level assertion"
+ : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
+ ? "watchdog reset"
+ : "unknown assertion";
+ netif_err(efx, hw, efx->net_dev,
+ "MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason,
+ MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS),
+ MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS));
+
+ /* Print out the registers */
+ ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
+ for (index = 1; index < 32; index++) {
+ netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", index,
+ MCDI_DWORD2(outbuf, ofst));
+ ofst += sizeof(efx_dword_t);
+ }
+
+ return 0;
+}
+
+static void efx_mcdi_exit_assertion(struct efx_nic *efx)
+{
+ u8 inbuf[MC_CMD_REBOOT_IN_LEN];
+
+ /* Atomically reboot the mcfw out of the assertion handler */
+ BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
+ MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS,
+ MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION);
+ efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, MC_CMD_REBOOT_IN_LEN,
+ NULL, 0, NULL);
+}
+
+int efx_mcdi_handle_assertion(struct efx_nic *efx)
+{
+ int rc;
+
+ rc = efx_mcdi_read_assertion(efx);
+ if (rc)
+ return rc;
+
+ efx_mcdi_exit_assertion(efx);
+
+ return 0;
+}
+
+void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
+{
+ u8 inbuf[MC_CMD_SET_ID_LED_IN_LEN];
+ int rc;
+
+ BUILD_BUG_ON(EFX_LED_OFF != MC_CMD_LED_OFF);
+ BUILD_BUG_ON(EFX_LED_ON != MC_CMD_LED_ON);
+ BUILD_BUG_ON(EFX_LED_DEFAULT != MC_CMD_LED_DEFAULT);
+
+ BUILD_BUG_ON(MC_CMD_SET_ID_LED_OUT_LEN != 0);
+
+ MCDI_SET_DWORD(inbuf, SET_ID_LED_IN_STATE, mode);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_SET_ID_LED, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+}
+
+int efx_mcdi_reset_port(struct efx_nic *efx)
+{
+ int rc = efx_mcdi_rpc(efx, MC_CMD_PORT_RESET, NULL, 0, NULL, 0, NULL);
+ if (rc)
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_reset_mc(struct efx_nic *efx)
+{
+ u8 inbuf[MC_CMD_REBOOT_IN_LEN];
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
+ MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, 0);
+ rc = efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ /* White is black, and up is down */
+ if (rc == -EIO)
+ return 0;
+ if (rc == 0)
+ rc = -EIO;
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type,
+ const u8 *mac, int *id_out)
+{
+ u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN];
+ u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type);
+ MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE,
+ MC_CMD_FILTER_MODE_SIMPLE);
+ memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID);
+
+ return 0;
+
+fail:
+ *id_out = -1;
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+
+}
+
+
+int
+efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out)
+{
+ return efx_mcdi_wol_filter_set(efx, MC_CMD_WOL_TYPE_MAGIC, mac, id_out);
+}
+
+
+int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out)
+{
+ u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID);
+
+ return 0;
+
+fail:
+ *id_out = -1;
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+
+int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id)
+{
+ u8 inbuf[MC_CMD_WOL_FILTER_REMOVE_IN_LEN];
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, WOL_FILTER_REMOVE_IN_FILTER_ID, (u32)id);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_REMOVE, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+
+int efx_mcdi_wol_filter_reset(struct efx_nic *efx)
+{
+ int rc;
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_RESET, NULL, 0, NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h
new file mode 100644
index 000000000000..aced2a7856fc
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mcdi.h
@@ -0,0 +1,130 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2008-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_MCDI_H
+#define EFX_MCDI_H
+
+/**
+ * enum efx_mcdi_state
+ * @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
+ * mcdi_lock then they are able to move to MCDI_STATE_RUNNING
+ * @MCDI_STATE_RUNNING: There is an MCDI request pending. Only the thread that
+ * moved into this state is allowed to move out of it.
+ * @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
+ * has not yet consumed the result. For all other threads, equivalent to
+ * MCDI_STATE_RUNNING.
+ */
+enum efx_mcdi_state {
+ MCDI_STATE_QUIESCENT,
+ MCDI_STATE_RUNNING,
+ MCDI_STATE_COMPLETED,
+};
+
+enum efx_mcdi_mode {
+ MCDI_MODE_POLL,
+ MCDI_MODE_EVENTS,
+};
+
+/**
+ * struct efx_mcdi_iface
+ * @state: Interface state. Waited for by mcdi_wq.
+ * @wq: Wait queue for threads waiting for state != STATE_RUNNING
+ * @iface_lock: Protects @credits, @seqno, @resprc, @resplen
+ * @mode: Poll for mcdi completion, or wait for an mcdi_event.
+ * Serialised by @lock
+ * @seqno: The next sequence number to use for mcdi requests.
+ * Serialised by @lock
+ * @credits: Number of spurious MCDI completion events allowed before we
+ * trigger a fatal error. Protected by @lock
+ * @resprc: Returned MCDI completion
+ * @resplen: Returned payload length
+ */
+struct efx_mcdi_iface {
+ atomic_t state;
+ wait_queue_head_t wq;
+ spinlock_t iface_lock;
+ enum efx_mcdi_mode mode;
+ unsigned int credits;
+ unsigned int seqno;
+ unsigned int resprc;
+ size_t resplen;
+};
+
+extern void efx_mcdi_init(struct efx_nic *efx);
+
+extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf,
+ size_t inlen, u8 *outbuf, size_t outlen,
+ size_t *outlen_actual);
+
+extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
+extern void efx_mcdi_mode_poll(struct efx_nic *efx);
+extern void efx_mcdi_mode_event(struct efx_nic *efx);
+
+extern void efx_mcdi_process_event(struct efx_channel *channel,
+ efx_qword_t *event);
+
+#define MCDI_PTR2(_buf, _ofst) \
+ (((u8 *)_buf) + _ofst)
+#define MCDI_SET_DWORD2(_buf, _ofst, _value) \
+ EFX_POPULATE_DWORD_1(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
+ EFX_DWORD_0, _value)
+#define MCDI_DWORD2(_buf, _ofst) \
+ EFX_DWORD_FIELD(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
+ EFX_DWORD_0)
+#define MCDI_QWORD2(_buf, _ofst) \
+ EFX_QWORD_FIELD64(*((efx_qword_t *)MCDI_PTR2(_buf, _ofst)), \
+ EFX_QWORD_0)
+
+#define MCDI_PTR(_buf, _ofst) \
+ MCDI_PTR2(_buf, MC_CMD_ ## _ofst ## _OFST)
+#define MCDI_SET_DWORD(_buf, _ofst, _value) \
+ MCDI_SET_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST, _value)
+#define MCDI_DWORD(_buf, _ofst) \
+ MCDI_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
+#define MCDI_QWORD(_buf, _ofst) \
+ MCDI_QWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
+
+#define MCDI_EVENT_FIELD(_ev, _field) \
+ EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
+
+extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
+extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
+ bool *was_attached_out);
+extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
+ u16 *fw_subtype_list);
+extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
+ u32 dest_evq);
+extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
+extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
+ size_t *size_out, size_t *erase_size_out,
+ bool *protected_out);
+extern int efx_mcdi_nvram_update_start(struct efx_nic *efx,
+ unsigned int type);
+extern int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
+ loff_t offset, u8 *buffer, size_t length);
+extern int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
+ loff_t offset, const u8 *buffer,
+ size_t length);
+#define EFX_MCDI_NVRAM_LEN_MAX 128
+extern int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
+ loff_t offset, size_t length);
+extern int efx_mcdi_nvram_update_finish(struct efx_nic *efx,
+ unsigned int type);
+extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
+extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
+extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
+extern int efx_mcdi_reset_port(struct efx_nic *efx);
+extern int efx_mcdi_reset_mc(struct efx_nic *efx);
+extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
+ const u8 *mac, int *id_out);
+extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
+extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
+extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
+
+#endif /* EFX_MCDI_H */
diff --git a/drivers/net/ethernet/sfc/mcdi_mac.c b/drivers/net/ethernet/sfc/mcdi_mac.c
new file mode 100644
index 000000000000..50c20777a564
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mcdi_mac.c
@@ -0,0 +1,145 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2009-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include "net_driver.h"
+#include "efx.h"
+#include "mac.h"
+#include "mcdi.h"
+#include "mcdi_pcol.h"
+
+static int efx_mcdi_set_mac(struct efx_nic *efx)
+{
+ u32 reject, fcntl;
+ u8 cmdbytes[MC_CMD_SET_MAC_IN_LEN];
+
+ memcpy(cmdbytes + MC_CMD_SET_MAC_IN_ADDR_OFST,
+ efx->net_dev->dev_addr, ETH_ALEN);
+
+ MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU,
+ EFX_MAX_FRAME_LEN(efx->net_dev->mtu));
+ MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0);
+
+ /* The MCDI command provides for controlling accept/reject
+ * of broadcast packets too, but the driver doesn't currently
+ * expose this. */
+ reject = (efx->promiscuous) ? 0 :
+ (1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN);
+ MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject);
+
+ switch (efx->wanted_fc) {
+ case EFX_FC_RX | EFX_FC_TX:
+ fcntl = MC_CMD_FCNTL_BIDIR;
+ break;
+ case EFX_FC_RX:
+ fcntl = MC_CMD_FCNTL_RESPOND;
+ break;
+ default:
+ fcntl = MC_CMD_FCNTL_OFF;
+ break;
+ }
+ if (efx->wanted_fc & EFX_FC_AUTO)
+ fcntl = MC_CMD_FCNTL_AUTO;
+
+ MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl);
+
+ return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes),
+ NULL, 0, NULL);
+}
+
+static int efx_mcdi_get_mac_faults(struct efx_nic *efx, u32 *faults)
+{
+ u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
+ size_t outlength;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
+ outbuf, sizeof(outbuf), &outlength);
+ if (rc)
+ goto fail;
+
+ *faults = MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT);
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
+ u32 dma_len, int enable, int clear)
+{
+ u8 inbuf[MC_CMD_MAC_STATS_IN_LEN];
+ int rc;
+ efx_dword_t *cmd_ptr;
+ int period = enable ? 1000 : 0;
+ u32 addr_hi;
+ u32 addr_lo;
+
+ BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_LEN != 0);
+
+ addr_lo = ((u64)dma_addr) >> 0;
+ addr_hi = ((u64)dma_addr) >> 32;
+
+ MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_LO, addr_lo);
+ MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_HI, addr_hi);
+ cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD);
+ EFX_POPULATE_DWORD_7(*cmd_ptr,
+ MC_CMD_MAC_STATS_CMD_DMA, !!enable,
+ MC_CMD_MAC_STATS_CMD_CLEAR, clear,
+ MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE, 1,
+ MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE, !!enable,
+ MC_CMD_MAC_STATS_CMD_PERIODIC_CLEAR, 0,
+ MC_CMD_MAC_STATS_CMD_PERIODIC_NOEVENT, 1,
+ MC_CMD_MAC_STATS_CMD_PERIOD_MS, period);
+ MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n",
+ __func__, enable ? "enable" : "disable", rc);
+ return rc;
+}
+
+static int efx_mcdi_mac_reconfigure(struct efx_nic *efx)
+{
+ int rc;
+
+ rc = efx_mcdi_set_mac(efx);
+ if (rc != 0)
+ return rc;
+
+ /* Restore the multicast hash registers. */
+ efx->type->push_multicast_hash(efx);
+
+ return 0;
+}
+
+
+static bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
+{
+ u32 faults;
+ int rc = efx_mcdi_get_mac_faults(efx, &faults);
+ return (rc != 0) || (faults != 0);
+}
+
+
+const struct efx_mac_operations efx_mcdi_mac_operations = {
+ .reconfigure = efx_mcdi_mac_reconfigure,
+ .update_stats = efx_port_dummy_op_void,
+ .check_fault = efx_mcdi_mac_check_fault,
+};
diff --git a/drivers/net/ethernet/sfc/mcdi_pcol.h b/drivers/net/ethernet/sfc/mcdi_pcol.h
new file mode 100644
index 000000000000..41fe06fa0600
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mcdi_pcol.h
@@ -0,0 +1,1775 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2009-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+
+#ifndef MCDI_PCOL_H
+#define MCDI_PCOL_H
+
+/* Values to be written into FMCR_CZ_RESET_STATE_REG to control boot. */
+/* Power-on reset state */
+#define MC_FW_STATE_POR (1)
+/* If this is set in MC_RESET_STATE_REG then it should be
+ * possible to jump into IMEM without loading code from flash. */
+#define MC_FW_WARM_BOOT_OK (2)
+/* The MC main image has started to boot. */
+#define MC_FW_STATE_BOOTING (4)
+/* The Scheduler has started. */
+#define MC_FW_STATE_SCHED (8)
+
+/* Values to be written to the per-port status dword in shared
+ * memory on reboot and assert */
+#define MC_STATUS_DWORD_REBOOT (0xb007b007)
+#define MC_STATUS_DWORD_ASSERT (0xdeaddead)
+
+/* The current version of the MCDI protocol.
+ *
+ * Note that the ROM burnt into the card only talks V0, so at the very
+ * least every driver must support version 0 and MCDI_PCOL_VERSION
+ */
+#define MCDI_PCOL_VERSION 1
+
+/**
+ * MCDI version 1
+ *
+ * Each MCDI request starts with an MCDI_HEADER, which is a 32byte
+ * structure, filled in by the client.
+ *
+ * 0 7 8 16 20 22 23 24 31
+ * | CODE | R | LEN | SEQ | Rsvd | E | R | XFLAGS |
+ * | | |
+ * | | \--- Response
+ * | \------- Error
+ * \------------------------------ Resync (always set)
+ *
+ * The client writes it's request into MC shared memory, and rings the
+ * doorbell. Each request is completed by either by the MC writting
+ * back into shared memory, or by writting out an event.
+ *
+ * All MCDI commands support completion by shared memory response. Each
+ * request may also contain additional data (accounted for by HEADER.LEN),
+ * and some response's may also contain additional data (again, accounted
+ * for by HEADER.LEN).
+ *
+ * Some MCDI commands support completion by event, in which any associated
+ * response data is included in the event.
+ *
+ * The protocol requires one response to be delivered for every request, a
+ * request should not be sent unless the response for the previous request
+ * has been received (either by polling shared memory, or by receiving
+ * an event).
+ */
+
+/** Request/Response structure */
+#define MCDI_HEADER_OFST 0
+#define MCDI_HEADER_CODE_LBN 0
+#define MCDI_HEADER_CODE_WIDTH 7
+#define MCDI_HEADER_RESYNC_LBN 7
+#define MCDI_HEADER_RESYNC_WIDTH 1
+#define MCDI_HEADER_DATALEN_LBN 8
+#define MCDI_HEADER_DATALEN_WIDTH 8
+#define MCDI_HEADER_SEQ_LBN 16
+#define MCDI_HEADER_RSVD_LBN 20
+#define MCDI_HEADER_RSVD_WIDTH 2
+#define MCDI_HEADER_SEQ_WIDTH 4
+#define MCDI_HEADER_ERROR_LBN 22
+#define MCDI_HEADER_ERROR_WIDTH 1
+#define MCDI_HEADER_RESPONSE_LBN 23
+#define MCDI_HEADER_RESPONSE_WIDTH 1
+#define MCDI_HEADER_XFLAGS_LBN 24
+#define MCDI_HEADER_XFLAGS_WIDTH 8
+/* Request response using event */
+#define MCDI_HEADER_XFLAGS_EVREQ 0x01
+
+/* Maximum number of payload bytes */
+#define MCDI_CTL_SDU_LEN_MAX 0xfc
+
+/* The MC can generate events for two reasons:
+ * - To complete a shared memory request if XFLAGS_EVREQ was set
+ * - As a notification (link state, i2c event), controlled
+ * via MC_CMD_LOG_CTRL
+ *
+ * Both events share a common structure:
+ *
+ * 0 32 33 36 44 52 60
+ * | Data | Cont | Level | Src | Code | Rsvd |
+ * |
+ * \ There is another event pending in this notification
+ *
+ * If Code==CMDDONE, then the fields are further interpreted as:
+ *
+ * - LEVEL==INFO Command succeeded
+ * - LEVEL==ERR Command failed
+ *
+ * 0 8 16 24 32
+ * | Seq | Datalen | Errno | Rsvd |
+ *
+ * These fields are taken directly out of the standard MCDI header, i.e.,
+ * LEVEL==ERR, Datalen == 0 => Reboot
+ *
+ * Events can be squirted out of the UART (using LOG_CTRL) without a
+ * MCDI header. An event can be distinguished from a MCDI response by
+ * examining the first byte which is 0xc0. This corresponds to the
+ * non-existent MCDI command MC_CMD_DEBUG_LOG.
+ *
+ * 0 7 8
+ * | command | Resync | = 0xc0
+ *
+ * Since the event is written in big-endian byte order, this works
+ * providing bits 56-63 of the event are 0xc0.
+ *
+ * 56 60 63
+ * | Rsvd | Code | = 0xc0
+ *
+ * Which means for convenience the event code is 0xc for all MC
+ * generated events.
+ */
+#define FSE_AZ_EV_CODE_MCDI_EVRESPONSE 0xc
+
+#define MCDI_EVENT_DATA_LBN 0
+#define MCDI_EVENT_DATA_WIDTH 32
+#define MCDI_EVENT_CONT_LBN 32
+#define MCDI_EVENT_CONT_WIDTH 1
+#define MCDI_EVENT_LEVEL_LBN 33
+#define MCDI_EVENT_LEVEL_WIDTH 3
+#define MCDI_EVENT_LEVEL_INFO (0)
+#define MCDI_EVENT_LEVEL_WARN (1)
+#define MCDI_EVENT_LEVEL_ERR (2)
+#define MCDI_EVENT_LEVEL_FATAL (3)
+#define MCDI_EVENT_SRC_LBN 36
+#define MCDI_EVENT_SRC_WIDTH 8
+#define MCDI_EVENT_CODE_LBN 44
+#define MCDI_EVENT_CODE_WIDTH 8
+#define MCDI_EVENT_CODE_BADSSERT (1)
+#define MCDI_EVENT_CODE_PMNOTICE (2)
+#define MCDI_EVENT_CODE_CMDDONE (3)
+#define MCDI_EVENT_CMDDONE_SEQ_LBN 0
+#define MCDI_EVENT_CMDDONE_SEQ_WIDTH 8
+#define MCDI_EVENT_CMDDONE_DATALEN_LBN 8
+#define MCDI_EVENT_CMDDONE_DATALEN_WIDTH 8
+#define MCDI_EVENT_CMDDONE_ERRNO_LBN 16
+#define MCDI_EVENT_CMDDONE_ERRNO_WIDTH 8
+#define MCDI_EVENT_CODE_LINKCHANGE (4)
+#define MCDI_EVENT_LINKCHANGE_LP_CAP_LBN 0
+#define MCDI_EVENT_LINKCHANGE_LP_CAP_WIDTH 16
+#define MCDI_EVENT_LINKCHANGE_SPEED_LBN 16
+#define MCDI_EVENT_LINKCHANGE_SPEED_WIDTH 4
+#define MCDI_EVENT_LINKCHANGE_SPEED_100M 1
+#define MCDI_EVENT_LINKCHANGE_SPEED_1G 2
+#define MCDI_EVENT_LINKCHANGE_SPEED_10G 3
+#define MCDI_EVENT_LINKCHANGE_FCNTL_LBN 20
+#define MCDI_EVENT_LINKCHANGE_FCNTL_WIDTH 4
+#define MCDI_EVENT_LINKCHANGE_LINK_FLAGS_LBN 24
+#define MCDI_EVENT_LINKCHANGE_LINK_FLAGS_WIDTH 8
+#define MCDI_EVENT_CODE_SENSOREVT (5)
+#define MCDI_EVENT_SENSOREVT_MONITOR_LBN 0
+#define MCDI_EVENT_SENSOREVT_MONITOR_WIDTH 8
+#define MCDI_EVENT_SENSOREVT_STATE_LBN 8
+#define MCDI_EVENT_SENSOREVT_STATE_WIDTH 8
+#define MCDI_EVENT_SENSOREVT_VALUE_LBN 16
+#define MCDI_EVENT_SENSOREVT_VALUE_WIDTH 16
+#define MCDI_EVENT_CODE_SCHEDERR (6)
+#define MCDI_EVENT_CODE_REBOOT (7)
+#define MCDI_EVENT_CODE_MAC_STATS_DMA (8)
+#define MCDI_EVENT_MAC_STATS_DMA_GENERATION_LBN 0
+#define MCDI_EVENT_MAC_STATS_DMA_GENERATION_WIDTH 32
+
+/* Non-existent command target */
+#define MC_CMD_ERR_ENOENT 2
+/* assert() has killed the MC */
+#define MC_CMD_ERR_EINTR 4
+/* Caller does not hold required locks */
+#define MC_CMD_ERR_EACCES 13
+/* Resource is currently unavailable (e.g. lock contention) */
+#define MC_CMD_ERR_EBUSY 16
+/* Invalid argument to target */
+#define MC_CMD_ERR_EINVAL 22
+/* Non-recursive resource is already acquired */
+#define MC_CMD_ERR_EDEADLK 35
+/* Operation not implemented */
+#define MC_CMD_ERR_ENOSYS 38
+/* Operation timed out */
+#define MC_CMD_ERR_ETIME 62
+
+#define MC_CMD_ERR_CODE_OFST 0
+
+
+/* MC_CMD_READ32: (debug, variadic out)
+ * Read multiple 32byte words from MC memory
+ */
+#define MC_CMD_READ32 0x01
+#define MC_CMD_READ32_IN_LEN 8
+#define MC_CMD_READ32_IN_ADDR_OFST 0
+#define MC_CMD_READ32_IN_NUMWORDS_OFST 4
+#define MC_CMD_READ32_OUT_LEN(_numwords) \
+ (4 * (_numwords))
+#define MC_CMD_READ32_OUT_BUFFER_OFST 0
+
+/* MC_CMD_WRITE32: (debug, variadic in)
+ * Write multiple 32byte words to MC memory
+ */
+#define MC_CMD_WRITE32 0x02
+#define MC_CMD_WRITE32_IN_LEN(_numwords) (((_numwords) * 4) + 4)
+#define MC_CMD_WRITE32_IN_ADDR_OFST 0
+#define MC_CMD_WRITE32_IN_BUFFER_OFST 4
+#define MC_CMD_WRITE32_OUT_LEN 0
+
+/* MC_CMD_COPYCODE: (debug)
+ * Copy MC code between two locations and jump
+ */
+#define MC_CMD_COPYCODE 0x03
+#define MC_CMD_COPYCODE_IN_LEN 16
+#define MC_CMD_COPYCODE_IN_SRC_ADDR_OFST 0
+#define MC_CMD_COPYCODE_IN_DEST_ADDR_OFST 4
+#define MC_CMD_COPYCODE_IN_NUMWORDS_OFST 8
+#define MC_CMD_COPYCODE_IN_JUMP_OFST 12
+/* Control should return to the caller rather than jumping */
+#define MC_CMD_COPYCODE_JUMP_NONE 1
+#define MC_CMD_COPYCODE_OUT_LEN 0
+
+/* MC_CMD_SET_FUNC: (debug)
+ * Select function for function-specific commands.
+ */
+#define MC_CMD_SET_FUNC 0x04
+#define MC_CMD_SET_FUNC_IN_LEN 4
+#define MC_CMD_SET_FUNC_IN_FUNC_OFST 0
+#define MC_CMD_SET_FUNC_OUT_LEN 0
+
+/* MC_CMD_GET_BOOT_STATUS:
+ * Get the instruction address from which the MC booted.
+ */
+#define MC_CMD_GET_BOOT_STATUS 0x05
+#define MC_CMD_GET_BOOT_STATUS_IN_LEN 0
+#define MC_CMD_GET_BOOT_STATUS_OUT_LEN 8
+#define MC_CMD_GET_BOOT_STATUS_OUT_BOOT_OFFSET_OFST 0
+#define MC_CMD_GET_BOOT_STATUS_OUT_FLAGS_OFST 4
+/* Reboot caused by watchdog */
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_WATCHDOG_LBN (0)
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_WATCHDOG_WIDTH (1)
+/* MC booted from primary flash partition */
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_PRIMARY_LBN (1)
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_PRIMARY_WIDTH (1)
+/* MC booted from backup flash partition */
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_BACKUP_LBN (2)
+#define MC_CMD_GET_BOOT_STATUS_FLAGS_BACKUP_WIDTH (1)
+
+/* MC_CMD_GET_ASSERTS: (debug, variadic out)
+ * Get (and optionally clear) the current assertion status.
+ *
+ * Only OUT.GLOBAL_FLAGS is guaranteed to exist in the completion
+ * payload. The other fields will only be present if
+ * OUT.GLOBAL_FLAGS != NO_FAILS
+ */
+#define MC_CMD_GET_ASSERTS 0x06
+#define MC_CMD_GET_ASSERTS_IN_LEN 4
+#define MC_CMD_GET_ASSERTS_IN_CLEAR_OFST 0
+#define MC_CMD_GET_ASSERTS_OUT_LEN 140
+/* Assertion status flag */
+#define MC_CMD_GET_ASSERTS_OUT_GLOBAL_FLAGS_OFST 0
+/*! No assertions have failed. */
+#define MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS 1
+/*! A system-level assertion has failed. */
+#define MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL 2
+/*! A thread-level assertion has failed. */
+#define MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL 3
+/*! The system was reset by the watchdog. */
+#define MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED 4
+/* Failing PC value */
+#define MC_CMD_GET_ASSERTS_OUT_SAVED_PC_OFFS_OFST 4
+/* Saved GP regs */
+#define MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST 8
+#define MC_CMD_GET_ASSERTS_OUT_GP_REGS_LEN 124
+/* Failing thread address */
+#define MC_CMD_GET_ASSERTS_OUT_THREAD_OFFS_OFST 132
+
+/* MC_CMD_LOG_CTRL:
+ * Determine the output stream for various events and messages
+ */
+#define MC_CMD_LOG_CTRL 0x07
+#define MC_CMD_LOG_CTRL_IN_LEN 8
+#define MC_CMD_LOG_CTRL_IN_LOG_DEST_OFST 0
+#define MC_CMD_LOG_CTRL_IN_LOG_DEST_UART (1)
+#define MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ (2)
+#define MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ_OFST 4
+#define MC_CMD_LOG_CTRL_OUT_LEN 0
+
+/* MC_CMD_GET_VERSION:
+ * Get version information about the MC firmware
+ */
+#define MC_CMD_GET_VERSION 0x08
+#define MC_CMD_GET_VERSION_IN_LEN 0
+#define MC_CMD_GET_VERSION_V0_OUT_LEN 4
+#define MC_CMD_GET_VERSION_V1_OUT_LEN 32
+#define MC_CMD_GET_VERSION_OUT_FIRMWARE_OFST 0
+/* Reserved version number to indicate "any" version. */
+#define MC_CMD_GET_VERSION_OUT_FIRMWARE_ANY 0xffffffff
+/* The version response of a boot ROM awaiting rescue */
+#define MC_CMD_GET_VERSION_OUT_FIRMWARE_BOOTROM 0xb0070000
+#define MC_CMD_GET_VERSION_V1_OUT_PCOL_OFST 4
+/* 128bit mask of functions supported by the current firmware */
+#define MC_CMD_GET_VERSION_V1_OUT_SUPPORTED_FUNCS_OFST 8
+/* The command set exported by the boot ROM (MCDI v0) */
+#define MC_CMD_GET_VERSION_V0_SUPPORTED_FUNCS { \
+ (1 << MC_CMD_READ32) | \
+ (1 << MC_CMD_WRITE32) | \
+ (1 << MC_CMD_COPYCODE) | \
+ (1 << MC_CMD_GET_VERSION), \
+ 0, 0, 0 }
+#define MC_CMD_GET_VERSION_OUT_VERSION_OFST 24
+
+/* Vectors in the boot ROM */
+/* Point to the copycode entry point. */
+#define MC_BOOTROM_COPYCODE_VEC (0x7f4)
+/* Points to the recovery mode entry point. */
+#define MC_BOOTROM_NOFLASH_VEC (0x7f8)
+
+/* Test execution limits */
+#define MC_TESTEXEC_VARIANT_COUNT 16
+#define MC_TESTEXEC_RESULT_COUNT 7
+
+/* MC_CMD_SET_TESTVARS: (debug, variadic in)
+ * Write variant words for test.
+ *
+ * The user supplies a bitmap of the variants they wish to set.
+ * They must ensure that IN.LEN >= 4 + 4 * ffs(BITMAP)
+ */
+#define MC_CMD_SET_TESTVARS 0x09
+#define MC_CMD_SET_TESTVARS_IN_LEN(_numwords) \
+ (4 + 4*(_numwords))
+#define MC_CMD_SET_TESTVARS_IN_ARGS_BITMAP_OFST 0
+/* Up to MC_TESTEXEC_VARIANT_COUNT of 32byte words start here */
+#define MC_CMD_SET_TESTVARS_IN_ARGS_BUFFER_OFST 4
+#define MC_CMD_SET_TESTVARS_OUT_LEN 0
+
+/* MC_CMD_GET_TESTRCS: (debug, variadic out)
+ * Return result words from test.
+ */
+#define MC_CMD_GET_TESTRCS 0x0a
+#define MC_CMD_GET_TESTRCS_IN_LEN 4
+#define MC_CMD_GET_TESTRCS_IN_NUMWORDS_OFST 0
+#define MC_CMD_GET_TESTRCS_OUT_LEN(_numwords) \
+ (4 * (_numwords))
+#define MC_CMD_GET_TESTRCS_OUT_BUFFER_OFST 0
+
+/* MC_CMD_RUN_TEST: (debug)
+ * Run the test exported by this firmware image
+ */
+#define MC_CMD_RUN_TEST 0x0b
+#define MC_CMD_RUN_TEST_IN_LEN 0
+#define MC_CMD_RUN_TEST_OUT_LEN 0
+
+/* MC_CMD_CSR_READ32: (debug, variadic out)
+ * Read 32bit words from the indirect memory map
+ */
+#define MC_CMD_CSR_READ32 0x0c
+#define MC_CMD_CSR_READ32_IN_LEN 12
+#define MC_CMD_CSR_READ32_IN_ADDR_OFST 0
+#define MC_CMD_CSR_READ32_IN_STEP_OFST 4
+#define MC_CMD_CSR_READ32_IN_NUMWORDS_OFST 8
+#define MC_CMD_CSR_READ32_OUT_LEN(_numwords) \
+ (((_numwords) * 4) + 4)
+/* IN.NUMWORDS of 32bit words start here */
+#define MC_CMD_CSR_READ32_OUT_BUFFER_OFST 0
+#define MC_CMD_CSR_READ32_OUT_IREG_STATUS_OFST(_numwords) \
+ ((_numwords) * 4)
+
+/* MC_CMD_CSR_WRITE32: (debug, variadic in)
+ * Write 32bit dwords to the indirect memory map
+ */
+#define MC_CMD_CSR_WRITE32 0x0d
+#define MC_CMD_CSR_WRITE32_IN_LEN(_numwords) \
+ (((_numwords) * 4) + 8)
+#define MC_CMD_CSR_WRITE32_IN_ADDR_OFST 0
+#define MC_CMD_CSR_WRITE32_IN_STEP_OFST 4
+/* Multiple 32bit words of data to write start here */
+#define MC_CMD_CSR_WRITE32_IN_BUFFER_OFST 8
+#define MC_CMD_CSR_WRITE32_OUT_LEN 4
+#define MC_CMD_CSR_WRITE32_OUT_STATUS_OFST 0
+
+/* MC_CMD_JTAG_WORK: (debug, fpga only)
+ * Process JTAG work buffer for RBF acceleration.
+ *
+ * Host: bit count, (up to) 32 words of data to clock out to JTAG
+ * (bits 1,0=TMS,TDO for first bit; bits 3,2=TMS,TDO for second bit, etc.)
+ * MC: bit count, (up to) 32 words of data clocked in from JTAG
+ * (bit 0=TDI for first bit, bit 1=TDI for second bit, etc.; [31:16] unused)
+ */
+#define MC_CMD_JTAG_WORK 0x0e
+
+/* MC_CMD_STACKINFO: (debug, variadic out)
+ * Get stack information
+ *
+ * Host: nothing
+ * MC: (thread ptr, stack size, free space) for each thread in system
+ */
+#define MC_CMD_STACKINFO 0x0f
+
+/* MC_CMD_MDIO_READ:
+ * MDIO register read
+ */
+#define MC_CMD_MDIO_READ 0x10
+#define MC_CMD_MDIO_READ_IN_LEN 16
+#define MC_CMD_MDIO_READ_IN_BUS_OFST 0
+#define MC_CMD_MDIO_READ_IN_PRTAD_OFST 4
+#define MC_CMD_MDIO_READ_IN_DEVAD_OFST 8
+#define MC_CMD_MDIO_READ_IN_ADDR_OFST 12
+#define MC_CMD_MDIO_READ_OUT_LEN 8
+#define MC_CMD_MDIO_READ_OUT_VALUE_OFST 0
+#define MC_CMD_MDIO_READ_OUT_STATUS_OFST 4
+
+/* MC_CMD_MDIO_WRITE:
+ * MDIO register write
+ */
+#define MC_CMD_MDIO_WRITE 0x11
+#define MC_CMD_MDIO_WRITE_IN_LEN 20
+#define MC_CMD_MDIO_WRITE_IN_BUS_OFST 0
+#define MC_CMD_MDIO_WRITE_IN_PRTAD_OFST 4
+#define MC_CMD_MDIO_WRITE_IN_DEVAD_OFST 8
+#define MC_CMD_MDIO_WRITE_IN_ADDR_OFST 12
+#define MC_CMD_MDIO_WRITE_IN_VALUE_OFST 16
+#define MC_CMD_MDIO_WRITE_OUT_LEN 4
+#define MC_CMD_MDIO_WRITE_OUT_STATUS_OFST 0
+
+/* By default all the MCDI MDIO operations perform clause45 mode.
+ * If you want to use clause22 then set DEVAD = MC_CMD_MDIO_CLAUSE22.
+ */
+#define MC_CMD_MDIO_CLAUSE22 32
+
+/* There are two MDIO buses: one for the internal PHY, and one for external
+ * devices.
+ */
+#define MC_CMD_MDIO_BUS_INTERNAL 0
+#define MC_CMD_MDIO_BUS_EXTERNAL 1
+
+/* The MDIO commands return the raw status bits from the MDIO block. A "good"
+ * transaction should have the DONE bit set and all other bits clear.
+ */
+#define MC_CMD_MDIO_STATUS_GOOD 0x08
+
+
+/* MC_CMD_DBI_WRITE: (debug)
+ * Write DBI register(s)
+ *
+ * Host: address, byte-enables (and VF selection, and cs2 flag),
+ * value [,address ...]
+ * MC: nothing
+ */
+#define MC_CMD_DBI_WRITE 0x12
+#define MC_CMD_DBI_WRITE_IN_LEN(_numwords) \
+ (12 * (_numwords))
+#define MC_CMD_DBI_WRITE_IN_ADDRESS_OFST(_word) \
+ (((_word) * 12) + 0)
+#define MC_CMD_DBI_WRITE_IN_BYTE_MASK_OFST(_word) \
+ (((_word) * 12) + 4)
+#define MC_CMD_DBI_WRITE_IN_VALUE_OFST(_word) \
+ (((_word) * 12) + 8)
+#define MC_CMD_DBI_WRITE_OUT_LEN 0
+
+/* MC_CMD_DBI_READ: (debug)
+ * Read DBI register(s)
+ *
+ * Host: address, [,address ...]
+ * MC: value [,value ...]
+ * (note: this does not support reading from VFs, but is retained for backwards
+ * compatibility; see MC_CMD_DBI_READX below)
+ */
+#define MC_CMD_DBI_READ 0x13
+#define MC_CMD_DBI_READ_IN_LEN(_numwords) \
+ (4 * (_numwords))
+#define MC_CMD_DBI_READ_OUT_LEN(_numwords) \
+ (4 * (_numwords))
+
+/* MC_CMD_PORT_READ32: (debug)
+ * Read a 32-bit register from the indirect port register map.
+ *
+ * The port to access is implied by the Shared memory channel used.
+ */
+#define MC_CMD_PORT_READ32 0x14
+#define MC_CMD_PORT_READ32_IN_LEN 4
+#define MC_CMD_PORT_READ32_IN_ADDR_OFST 0
+#define MC_CMD_PORT_READ32_OUT_LEN 8
+#define MC_CMD_PORT_READ32_OUT_VALUE_OFST 0
+#define MC_CMD_PORT_READ32_OUT_STATUS_OFST 4
+
+/* MC_CMD_PORT_WRITE32: (debug)
+ * Write a 32-bit register to the indirect port register map.
+ *
+ * The port to access is implied by the Shared memory channel used.
+ */
+#define MC_CMD_PORT_WRITE32 0x15
+#define MC_CMD_PORT_WRITE32_IN_LEN 8
+#define MC_CMD_PORT_WRITE32_IN_ADDR_OFST 0
+#define MC_CMD_PORT_WRITE32_IN_VALUE_OFST 4
+#define MC_CMD_PORT_WRITE32_OUT_LEN 4
+#define MC_CMD_PORT_WRITE32_OUT_STATUS_OFST 0
+
+/* MC_CMD_PORT_READ128: (debug)
+ * Read a 128-bit register from indirect port register map
+ *
+ * The port to access is implied by the Shared memory channel used.
+ */
+#define MC_CMD_PORT_READ128 0x16
+#define MC_CMD_PORT_READ128_IN_LEN 4
+#define MC_CMD_PORT_READ128_IN_ADDR_OFST 0
+#define MC_CMD_PORT_READ128_OUT_LEN 20
+#define MC_CMD_PORT_READ128_OUT_VALUE_OFST 0
+#define MC_CMD_PORT_READ128_OUT_STATUS_OFST 16
+
+/* MC_CMD_PORT_WRITE128: (debug)
+ * Write a 128-bit register to indirect port register map.
+ *
+ * The port to access is implied by the Shared memory channel used.
+ */
+#define MC_CMD_PORT_WRITE128 0x17
+#define MC_CMD_PORT_WRITE128_IN_LEN 20
+#define MC_CMD_PORT_WRITE128_IN_ADDR_OFST 0
+#define MC_CMD_PORT_WRITE128_IN_VALUE_OFST 4
+#define MC_CMD_PORT_WRITE128_OUT_LEN 4
+#define MC_CMD_PORT_WRITE128_OUT_STATUS_OFST 0
+
+/* MC_CMD_GET_BOARD_CFG:
+ * Returns the MC firmware configuration structure
+ *
+ * The FW_SUBTYPE_LIST contains a 16-bit value for each of the 12 types of
+ * NVRAM area. The values are defined in the firmware/mc/platform/<xxx>.c file
+ * for a specific board type, but otherwise have no meaning to the MC; they
+ * are used by the driver to manage selection of appropriate firmware updates.
+ */
+#define MC_CMD_GET_BOARD_CFG 0x18
+#define MC_CMD_GET_BOARD_CFG_IN_LEN 0
+#define MC_CMD_GET_BOARD_CFG_OUT_LEN 96
+#define MC_CMD_GET_BOARD_CFG_OUT_BOARD_TYPE_OFST 0
+#define MC_CMD_GET_BOARD_CFG_OUT_BOARD_NAME_OFST 4
+#define MC_CMD_GET_BOARD_CFG_OUT_BOARD_NAME_LEN 32
+#define MC_CMD_GET_BOARD_CFG_OUT_CAPABILITIES_PORT0_OFST 36
+#define MC_CMD_GET_BOARD_CFG_OUT_CAPABILITIES_PORT1_OFST 40
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST 44
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_LEN 6
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST 50
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_LEN 6
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_COUNT_PORT0_OFST 56
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_COUNT_PORT1_OFST 60
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_STRIDE_PORT0_OFST 64
+#define MC_CMD_GET_BOARD_CFG_OUT_MAC_STRIDE_PORT1_OFST 68
+#define MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST 72
+#define MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN 24
+
+/* MC_CMD_DBI_READX: (debug)
+ * Read DBI register(s) -- extended functionality
+ *
+ * Host: vf selection, address, [,vf selection ...]
+ * MC: value [,value ...]
+ */
+#define MC_CMD_DBI_READX 0x19
+#define MC_CMD_DBI_READX_IN_LEN(_numwords) \
+ (8*(_numwords))
+#define MC_CMD_DBI_READX_OUT_LEN(_numwords) \
+ (4*(_numwords))
+
+/* MC_CMD_SET_RAND_SEED:
+ * Set the 16byte seed for the MC pseudo-random generator
+ */
+#define MC_CMD_SET_RAND_SEED 0x1a
+#define MC_CMD_SET_RAND_SEED_IN_LEN 16
+#define MC_CMD_SET_RAND_SEED_IN_SEED_OFST 0
+#define MC_CMD_SET_RAND_SEED_OUT_LEN 0
+
+/* MC_CMD_LTSSM_HIST: (debug)
+ * Retrieve the history of the LTSSM, if the build supports it.
+ *
+ * Host: nothing
+ * MC: variable number of LTSSM values, as bytes
+ * The history is read-to-clear.
+ */
+#define MC_CMD_LTSSM_HIST 0x1b
+
+/* MC_CMD_DRV_ATTACH:
+ * Inform MCPU that this port is managed on the host (i.e. driver active)
+ */
+#define MC_CMD_DRV_ATTACH 0x1c
+#define MC_CMD_DRV_ATTACH_IN_LEN 8
+#define MC_CMD_DRV_ATTACH_IN_NEW_STATE_OFST 0
+#define MC_CMD_DRV_ATTACH_IN_UPDATE_OFST 4
+#define MC_CMD_DRV_ATTACH_OUT_LEN 4
+#define MC_CMD_DRV_ATTACH_OUT_OLD_STATE_OFST 0
+
+/* MC_CMD_NCSI_PROD: (debug)
+ * Trigger an NC-SI event (and possibly an AEN in response)
+ */
+#define MC_CMD_NCSI_PROD 0x1d
+#define MC_CMD_NCSI_PROD_IN_LEN 4
+#define MC_CMD_NCSI_PROD_IN_EVENTS_OFST 0
+#define MC_CMD_NCSI_PROD_LINKCHANGE_LBN 0
+#define MC_CMD_NCSI_PROD_LINKCHANGE_WIDTH 1
+#define MC_CMD_NCSI_PROD_RESET_LBN 1
+#define MC_CMD_NCSI_PROD_RESET_WIDTH 1
+#define MC_CMD_NCSI_PROD_DRVATTACH_LBN 2
+#define MC_CMD_NCSI_PROD_DRVATTACH_WIDTH 1
+#define MC_CMD_NCSI_PROD_OUT_LEN 0
+
+/* Enumeration */
+#define MC_CMD_NCSI_PROD_LINKCHANGE 0
+#define MC_CMD_NCSI_PROD_RESET 1
+#define MC_CMD_NCSI_PROD_DRVATTACH 2
+
+/* MC_CMD_DEVEL: (debug)
+ * Reserved for development
+ */
+#define MC_CMD_DEVEL 0x1e
+
+/* MC_CMD_SHMUART: (debug)
+ * Route UART output to circular buffer in shared memory instead.
+ */
+#define MC_CMD_SHMUART 0x1f
+#define MC_CMD_SHMUART_IN_FLAG_OFST 0
+#define MC_CMD_SHMUART_IN_LEN 4
+#define MC_CMD_SHMUART_OUT_LEN 0
+
+/* MC_CMD_PORT_RESET:
+ * Generic per-port reset. There is no equivalent for per-board reset.
+ *
+ * Locks required: None
+ * Return code: 0, ETIME
+ */
+#define MC_CMD_PORT_RESET 0x20
+#define MC_CMD_PORT_RESET_IN_LEN 0
+#define MC_CMD_PORT_RESET_OUT_LEN 0
+
+/* MC_CMD_RESOURCE_LOCK:
+ * Generic resource lock/unlock interface.
+ *
+ * Locks required: None
+ * Return code: 0,
+ * EBUSY (if trylock is contended by other port),
+ * EDEADLK (if trylock is already acquired by this port)
+ * EINVAL (if unlock doesn't own the lock)
+ */
+#define MC_CMD_RESOURCE_LOCK 0x21
+#define MC_CMD_RESOURCE_LOCK_IN_LEN 8
+#define MC_CMD_RESOURCE_LOCK_IN_ACTION_OFST 0
+#define MC_CMD_RESOURCE_LOCK_ACTION_TRYLOCK 1
+#define MC_CMD_RESOURCE_LOCK_ACTION_UNLOCK 0
+#define MC_CMD_RESOURCE_LOCK_IN_RESOURCE_OFST 4
+#define MC_CMD_RESOURCE_LOCK_I2C 2
+#define MC_CMD_RESOURCE_LOCK_PHY 3
+#define MC_CMD_RESOURCE_LOCK_OUT_LEN 0
+
+/* MC_CMD_SPI_COMMAND: (variadic in, variadic out)
+ * Read/Write to/from the SPI device.
+ *
+ * Locks required: SPI_LOCK
+ * Return code: 0, ETIME, EINVAL, EACCES (if SPI_LOCK is not held)
+ */
+#define MC_CMD_SPI_COMMAND 0x22
+#define MC_CMD_SPI_COMMAND_IN_LEN(_write_bytes) (12 + (_write_bytes))
+#define MC_CMD_SPI_COMMAND_IN_ARGS_OFST 0
+#define MC_CMD_SPI_COMMAND_IN_ARGS_ADDRESS_OFST 0
+#define MC_CMD_SPI_COMMAND_IN_ARGS_READ_BYTES_OFST 4
+#define MC_CMD_SPI_COMMAND_IN_ARGS_CHIP_SELECT_OFST 8
+/* Data to write here */
+#define MC_CMD_SPI_COMMAND_IN_WRITE_BUFFER_OFST 12
+#define MC_CMD_SPI_COMMAND_OUT_LEN(_read_bytes) (_read_bytes)
+/* Data read here */
+#define MC_CMD_SPI_COMMAND_OUT_READ_BUFFER_OFST 0
+
+/* MC_CMD_I2C_READ_WRITE: (variadic in, variadic out)
+ * Read/Write to/from the I2C bus.
+ *
+ * Locks required: I2C_LOCK
+ * Return code: 0, ETIME, EINVAL, EACCES (if I2C_LOCK is not held)
+ */
+#define MC_CMD_I2C_RW 0x23
+#define MC_CMD_I2C_RW_IN_LEN(_write_bytes) (8 + (_write_bytes))
+#define MC_CMD_I2C_RW_IN_ARGS_OFST 0
+#define MC_CMD_I2C_RW_IN_ARGS_ADDR_OFST 0
+#define MC_CMD_I2C_RW_IN_ARGS_READ_BYTES_OFST 4
+/* Data to write here */
+#define MC_CMD_I2C_RW_IN_WRITE_BUFFER_OFSET 8
+#define MC_CMD_I2C_RW_OUT_LEN(_read_bytes) (_read_bytes)
+/* Data read here */
+#define MC_CMD_I2C_RW_OUT_READ_BUFFER_OFST 0
+
+/* Generic phy capability bitmask */
+#define MC_CMD_PHY_CAP_10HDX_LBN 1
+#define MC_CMD_PHY_CAP_10HDX_WIDTH 1
+#define MC_CMD_PHY_CAP_10FDX_LBN 2
+#define MC_CMD_PHY_CAP_10FDX_WIDTH 1
+#define MC_CMD_PHY_CAP_100HDX_LBN 3
+#define MC_CMD_PHY_CAP_100HDX_WIDTH 1
+#define MC_CMD_PHY_CAP_100FDX_LBN 4
+#define MC_CMD_PHY_CAP_100FDX_WIDTH 1
+#define MC_CMD_PHY_CAP_1000HDX_LBN 5
+#define MC_CMD_PHY_CAP_1000HDX_WIDTH 1
+#define MC_CMD_PHY_CAP_1000FDX_LBN 6
+#define MC_CMD_PHY_CAP_1000FDX_WIDTH 1
+#define MC_CMD_PHY_CAP_10000FDX_LBN 7
+#define MC_CMD_PHY_CAP_10000FDX_WIDTH 1
+#define MC_CMD_PHY_CAP_PAUSE_LBN 8
+#define MC_CMD_PHY_CAP_PAUSE_WIDTH 1
+#define MC_CMD_PHY_CAP_ASYM_LBN 9
+#define MC_CMD_PHY_CAP_ASYM_WIDTH 1
+#define MC_CMD_PHY_CAP_AN_LBN 10
+#define MC_CMD_PHY_CAP_AN_WIDTH 1
+
+/* Generic loopback enumeration */
+#define MC_CMD_LOOPBACK_NONE 0
+#define MC_CMD_LOOPBACK_DATA 1
+#define MC_CMD_LOOPBACK_GMAC 2
+#define MC_CMD_LOOPBACK_XGMII 3
+#define MC_CMD_LOOPBACK_XGXS 4
+#define MC_CMD_LOOPBACK_XAUI 5
+#define MC_CMD_LOOPBACK_GMII 6
+#define MC_CMD_LOOPBACK_SGMII 7
+#define MC_CMD_LOOPBACK_XGBR 8
+#define MC_CMD_LOOPBACK_XFI 9
+#define MC_CMD_LOOPBACK_XAUI_FAR 10
+#define MC_CMD_LOOPBACK_GMII_FAR 11
+#define MC_CMD_LOOPBACK_SGMII_FAR 12
+#define MC_CMD_LOOPBACK_XFI_FAR 13
+#define MC_CMD_LOOPBACK_GPHY 14
+#define MC_CMD_LOOPBACK_PHYXS 15
+#define MC_CMD_LOOPBACK_PCS 16
+#define MC_CMD_LOOPBACK_PMAPMD 17
+#define MC_CMD_LOOPBACK_XPORT 18
+#define MC_CMD_LOOPBACK_XGMII_WS 19
+#define MC_CMD_LOOPBACK_XAUI_WS 20
+#define MC_CMD_LOOPBACK_XAUI_WS_FAR 21
+#define MC_CMD_LOOPBACK_XAUI_WS_NEAR 22
+#define MC_CMD_LOOPBACK_GMII_WS 23
+#define MC_CMD_LOOPBACK_XFI_WS 24
+#define MC_CMD_LOOPBACK_XFI_WS_FAR 25
+#define MC_CMD_LOOPBACK_PHYXS_WS 26
+
+/* Generic PHY statistics enumeration */
+#define MC_CMD_OUI 0
+#define MC_CMD_PMA_PMD_LINK_UP 1
+#define MC_CMD_PMA_PMD_RX_FAULT 2
+#define MC_CMD_PMA_PMD_TX_FAULT 3
+#define MC_CMD_PMA_PMD_SIGNAL 4
+#define MC_CMD_PMA_PMD_SNR_A 5
+#define MC_CMD_PMA_PMD_SNR_B 6
+#define MC_CMD_PMA_PMD_SNR_C 7
+#define MC_CMD_PMA_PMD_SNR_D 8
+#define MC_CMD_PCS_LINK_UP 9
+#define MC_CMD_PCS_RX_FAULT 10
+#define MC_CMD_PCS_TX_FAULT 11
+#define MC_CMD_PCS_BER 12
+#define MC_CMD_PCS_BLOCK_ERRORS 13
+#define MC_CMD_PHYXS_LINK_UP 14
+#define MC_CMD_PHYXS_RX_FAULT 15
+#define MC_CMD_PHYXS_TX_FAULT 16
+#define MC_CMD_PHYXS_ALIGN 17
+#define MC_CMD_PHYXS_SYNC 18
+#define MC_CMD_AN_LINK_UP 19
+#define MC_CMD_AN_COMPLETE 20
+#define MC_CMD_AN_10GBT_STATUS 21
+#define MC_CMD_CL22_LINK_UP 22
+#define MC_CMD_PHY_NSTATS 23
+
+/* MC_CMD_GET_PHY_CFG:
+ * Report PHY configuration. This guarantees to succeed even if the PHY is in
+ * a "zombie" state.
+ *
+ * Locks required: None
+ * Return code: 0
+ */
+#define MC_CMD_GET_PHY_CFG 0x24
+
+#define MC_CMD_GET_PHY_CFG_IN_LEN 0
+#define MC_CMD_GET_PHY_CFG_OUT_LEN 72
+
+#define MC_CMD_GET_PHY_CFG_OUT_FLAGS_OFST 0
+#define MC_CMD_GET_PHY_CFG_PRESENT_LBN 0
+#define MC_CMD_GET_PHY_CFG_PRESENT_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_BIST_CABLE_SHORT_LBN 1
+#define MC_CMD_GET_PHY_CFG_BIST_CABLE_SHORT_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_BIST_CABLE_LONG_LBN 2
+#define MC_CMD_GET_PHY_CFG_BIST_CABLE_LONG_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_LOWPOWER_LBN 3
+#define MC_CMD_GET_PHY_CFG_LOWPOWER_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_POWEROFF_LBN 4
+#define MC_CMD_GET_PHY_CFG_POWEROFF_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_TXDIS_LBN 5
+#define MC_CMD_GET_PHY_CFG_TXDIS_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_BIST_LBN 6
+#define MC_CMD_GET_PHY_CFG_BIST_WIDTH 1
+#define MC_CMD_GET_PHY_CFG_OUT_TYPE_OFST 4
+/* Bitmask of supported capabilities */
+#define MC_CMD_GET_PHY_CFG_OUT_SUPPORTED_CAP_OFST 8
+#define MC_CMD_GET_PHY_CFG_OUT_CHANNEL_OFST 12
+#define MC_CMD_GET_PHY_CFG_OUT_PRT_OFST 16
+/* PHY statistics bitmap */
+#define MC_CMD_GET_PHY_CFG_OUT_STATS_MASK_OFST 20
+/* PHY type/name string */
+#define MC_CMD_GET_PHY_CFG_OUT_NAME_OFST 24
+#define MC_CMD_GET_PHY_CFG_OUT_NAME_LEN 20
+#define MC_CMD_GET_PHY_CFG_OUT_MEDIA_TYPE_OFST 44
+#define MC_CMD_MEDIA_XAUI 1
+#define MC_CMD_MEDIA_CX4 2
+#define MC_CMD_MEDIA_KX4 3
+#define MC_CMD_MEDIA_XFP 4
+#define MC_CMD_MEDIA_SFP_PLUS 5
+#define MC_CMD_MEDIA_BASE_T 6
+/* MDIO "MMDS" supported */
+#define MC_CMD_GET_PHY_CFG_OUT_MMD_MASK_OFST 48
+/* Native clause 22 */
+#define MC_CMD_MMD_CLAUSE22 0
+#define MC_CMD_MMD_CLAUSE45_PMAPMD 1
+#define MC_CMD_MMD_CLAUSE45_WIS 2
+#define MC_CMD_MMD_CLAUSE45_PCS 3
+#define MC_CMD_MMD_CLAUSE45_PHYXS 4
+#define MC_CMD_MMD_CLAUSE45_DTEXS 5
+#define MC_CMD_MMD_CLAUSE45_TC 6
+#define MC_CMD_MMD_CLAUSE45_AN 7
+/* Clause22 proxied over clause45 by PHY */
+#define MC_CMD_MMD_CLAUSE45_C22EXT 29
+#define MC_CMD_MMD_CLAUSE45_VEND1 30
+#define MC_CMD_MMD_CLAUSE45_VEND2 31
+/* PHY stepping version */
+#define MC_CMD_GET_PHY_CFG_OUT_REVISION_OFST 52
+#define MC_CMD_GET_PHY_CFG_OUT_REVISION_LEN 20
+
+/* MC_CMD_START_BIST:
+ * Start a BIST test on the PHY.
+ *
+ * Locks required: PHY_LOCK if doing a PHY BIST
+ * Return code: 0, EINVAL, EACCES (if PHY_LOCK is not held)
+ */
+#define MC_CMD_START_BIST 0x25
+#define MC_CMD_START_BIST_IN_LEN 4
+#define MC_CMD_START_BIST_IN_TYPE_OFST 0
+#define MC_CMD_START_BIST_OUT_LEN 0
+
+/* Run the PHY's short cable BIST */
+#define MC_CMD_PHY_BIST_CABLE_SHORT 1
+/* Run the PHY's long cable BIST */
+#define MC_CMD_PHY_BIST_CABLE_LONG 2
+/* Run BIST on the currently selected BPX Serdes (XAUI or XFI) */
+#define MC_CMD_BPX_SERDES_BIST 3
+/* Run the MC loopback tests */
+#define MC_CMD_MC_LOOPBACK_BIST 4
+/* Run the PHY's standard BIST */
+#define MC_CMD_PHY_BIST 5
+
+/* MC_CMD_POLL_PHY_BIST: (variadic output)
+ * Poll for BIST completion
+ *
+ * Returns a single status code, and optionally some PHY specific
+ * bist output. The driver should only consume the BIST output
+ * after validating OUTLEN and PHY_CFG.PHY_TYPE.
+ *
+ * If a driver can't successfully parse the BIST output, it should
+ * still respect the pass/Fail in OUT.RESULT
+ *
+ * Locks required: PHY_LOCK if doing a PHY BIST
+ * Return code: 0, EACCES (if PHY_LOCK is not held)
+ */
+#define MC_CMD_POLL_BIST 0x26
+#define MC_CMD_POLL_BIST_IN_LEN 0
+#define MC_CMD_POLL_BIST_OUT_LEN UNKNOWN
+#define MC_CMD_POLL_BIST_OUT_SFT9001_LEN 36
+#define MC_CMD_POLL_BIST_OUT_MRSFP_LEN 8
+#define MC_CMD_POLL_BIST_OUT_RESULT_OFST 0
+#define MC_CMD_POLL_BIST_RUNNING 1
+#define MC_CMD_POLL_BIST_PASSED 2
+#define MC_CMD_POLL_BIST_FAILED 3
+#define MC_CMD_POLL_BIST_TIMEOUT 4
+/* Generic: */
+#define MC_CMD_POLL_BIST_OUT_PRIVATE_OFST 4
+/* SFT9001-specific: */
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A_OFST 4
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_LENGTH_B_OFST 8
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_LENGTH_C_OFST 12
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_LENGTH_D_OFST 16
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_STATUS_A_OFST 20
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_STATUS_B_OFST 24
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_STATUS_C_OFST 28
+#define MC_CMD_POLL_BIST_OUT_SFT9001_CABLE_STATUS_D_OFST 32
+#define MC_CMD_POLL_BIST_SFT9001_PAIR_OK 1
+#define MC_CMD_POLL_BIST_SFT9001_PAIR_OPEN 2
+#define MC_CMD_POLL_BIST_SFT9001_INTRA_PAIR_SHORT 3
+#define MC_CMD_POLL_BIST_SFT9001_INTER_PAIR_SHORT 4
+#define MC_CMD_POLL_BIST_SFT9001_PAIR_BUSY 9
+/* mrsfp "PHY" driver: */
+#define MC_CMD_POLL_BIST_OUT_MRSFP_TEST_OFST 4
+#define MC_CMD_POLL_BIST_MRSFP_TEST_COMPLETE 0
+#define MC_CMD_POLL_BIST_MRSFP_TEST_BUS_SWITCH_OFF_I2C_WRITE 1
+#define MC_CMD_POLL_BIST_MRSFP_TEST_BUS_SWITCH_OFF_I2C_NO_ACCESS_IO_EXP 2
+#define MC_CMD_POLL_BIST_MRSFP_TEST_BUS_SWITCH_OFF_I2C_NO_ACCESS_MODULE 3
+#define MC_CMD_POLL_BIST_MRSFP_TEST_IO_EXP_I2C_CONFIGURE 4
+#define MC_CMD_POLL_BIST_MRSFP_TEST_BUS_SWITCH_I2C_NO_CROSSTALK 5
+#define MC_CMD_POLL_BIST_MRSFP_TEST_MODULE_PRESENCE 6
+#define MC_CMD_POLL_BIST_MRSFP_TEST_MODULE_ID_I2C_ACCESS 7
+#define MC_CMD_POLL_BIST_MRSFP_TEST_MODULE_ID_SANE_VALUE 8
+
+/* MC_CMD_PHY_SPI: (variadic in, variadic out)
+ * Read/Write/Erase the PHY SPI device
+ *
+ * Locks required: PHY_LOCK
+ * Return code: 0, ETIME, EINVAL, EACCES (if PHY_LOCK is not held)
+ */
+#define MC_CMD_PHY_SPI 0x27
+#define MC_CMD_PHY_SPI_IN_LEN(_write_bytes) (12 + (_write_bytes))
+#define MC_CMD_PHY_SPI_IN_ARGS_OFST 0
+#define MC_CMD_PHY_SPI_IN_ARGS_ADDR_OFST 0
+#define MC_CMD_PHY_SPI_IN_ARGS_READ_BYTES_OFST 4
+#define MC_CMD_PHY_SPI_IN_ARGS_ERASE_ALL_OFST 8
+/* Data to write here */
+#define MC_CMD_PHY_SPI_IN_WRITE_BUFFER_OFSET 12
+#define MC_CMD_PHY_SPI_OUT_LEN(_read_bytes) (_read_bytes)
+/* Data read here */
+#define MC_CMD_PHY_SPI_OUT_READ_BUFFER_OFST 0
+
+
+/* MC_CMD_GET_LOOPBACK_MODES:
+ * Returns a bitmask of loopback modes evailable at each speed.
+ *
+ * Locks required: None
+ * Return code: 0
+ */
+#define MC_CMD_GET_LOOPBACK_MODES 0x28
+#define MC_CMD_GET_LOOPBACK_MODES_IN_LEN 0
+#define MC_CMD_GET_LOOPBACK_MODES_OUT_LEN 32
+#define MC_CMD_GET_LOOPBACK_MODES_100M_OFST 0
+#define MC_CMD_GET_LOOPBACK_MODES_1G_OFST 8
+#define MC_CMD_GET_LOOPBACK_MODES_10G_OFST 16
+#define MC_CMD_GET_LOOPBACK_MODES_SUGGESTED_OFST 24
+
+/* Flow control enumeration */
+#define MC_CMD_FCNTL_OFF 0
+#define MC_CMD_FCNTL_RESPOND 1
+#define MC_CMD_FCNTL_BIDIR 2
+/* Auto - Use what the link has autonegotiated
+ * - The driver should modify the advertised capabilities via SET_LINK.CAP
+ * to control the negotiated flow control mode.
+ * - Can only be set if the PHY supports PAUSE+ASYM capabilities
+ * - Never returned by GET_LINK as the value programmed into the MAC
+ */
+#define MC_CMD_FCNTL_AUTO 3
+
+/* Generic mac fault bitmask */
+#define MC_CMD_MAC_FAULT_XGMII_LOCAL_LBN 0
+#define MC_CMD_MAC_FAULT_XGMII_LOCAL_WIDTH 1
+#define MC_CMD_MAC_FAULT_XGMII_REMOTE_LBN 1
+#define MC_CMD_MAC_FAULT_XGMII_REMOTE_WIDTH 1
+#define MC_CMD_MAC_FAULT_SGMII_REMOTE_LBN 2
+#define MC_CMD_MAC_FAULT_SGMII_REMOTE_WIDTH 1
+
+/* MC_CMD_GET_LINK:
+ * Read the unified MAC/PHY link state
+ *
+ * Locks required: None
+ * Return code: 0, ETIME
+ */
+#define MC_CMD_GET_LINK 0x29
+#define MC_CMD_GET_LINK_IN_LEN 0
+#define MC_CMD_GET_LINK_OUT_LEN 28
+/* near-side and link-partner advertised capabilities */
+#define MC_CMD_GET_LINK_OUT_CAP_OFST 0
+#define MC_CMD_GET_LINK_OUT_LP_CAP_OFST 4
+/* Autonegotiated speed in mbit/s. The link may still be down
+ * even if this reads non-zero */
+#define MC_CMD_GET_LINK_OUT_LINK_SPEED_OFST 8
+#define MC_CMD_GET_LINK_OUT_LOOPBACK_MODE_OFST 12
+#define MC_CMD_GET_LINK_OUT_FLAGS_OFST 16
+/* Whether we have overall link up */
+#define MC_CMD_GET_LINK_LINK_UP_LBN 0
+#define MC_CMD_GET_LINK_LINK_UP_WIDTH 1
+#define MC_CMD_GET_LINK_FULL_DUPLEX_LBN 1
+#define MC_CMD_GET_LINK_FULL_DUPLEX_WIDTH 1
+/* Whether we have link at the layers provided by the BPX */
+#define MC_CMD_GET_LINK_BPX_LINK_LBN 2
+#define MC_CMD_GET_LINK_BPX_LINK_WIDTH 1
+/* Whether the PHY has external link */
+#define MC_CMD_GET_LINK_PHY_LINK_LBN 3
+#define MC_CMD_GET_LINK_PHY_LINK_WIDTH 1
+#define MC_CMD_GET_LINK_OUT_FCNTL_OFST 20
+#define MC_CMD_GET_LINK_OUT_MAC_FAULT_OFST 24
+
+/* MC_CMD_SET_LINK:
+ * Write the unified MAC/PHY link configuration
+ *
+ * A loopback speed of "0" is supported, and means
+ * (choose any available speed)
+ *
+ * Locks required: None
+ * Return code: 0, EINVAL, ETIME
+ */
+#define MC_CMD_SET_LINK 0x2a
+#define MC_CMD_SET_LINK_IN_LEN 16
+#define MC_CMD_SET_LINK_IN_CAP_OFST 0
+#define MC_CMD_SET_LINK_IN_FLAGS_OFST 4
+#define MC_CMD_SET_LINK_LOWPOWER_LBN 0
+#define MC_CMD_SET_LINK_LOWPOWER_WIDTH 1
+#define MC_CMD_SET_LINK_POWEROFF_LBN 1
+#define MC_CMD_SET_LINK_POWEROFF_WIDTH 1
+#define MC_CMD_SET_LINK_TXDIS_LBN 2
+#define MC_CMD_SET_LINK_TXDIS_WIDTH 1
+#define MC_CMD_SET_LINK_IN_LOOPBACK_MODE_OFST 8
+#define MC_CMD_SET_LINK_IN_LOOPBACK_SPEED_OFST 12
+#define MC_CMD_SET_LINK_OUT_LEN 0
+
+/* MC_CMD_SET_ID_LED:
+ * Set indentification LED state
+ *
+ * Locks required: None
+ * Return code: 0, EINVAL
+ */
+#define MC_CMD_SET_ID_LED 0x2b
+#define MC_CMD_SET_ID_LED_IN_LEN 4
+#define MC_CMD_SET_ID_LED_IN_STATE_OFST 0
+#define MC_CMD_LED_OFF 0
+#define MC_CMD_LED_ON 1
+#define MC_CMD_LED_DEFAULT 2
+#define MC_CMD_SET_ID_LED_OUT_LEN 0
+
+/* MC_CMD_SET_MAC:
+ * Set MAC configuration
+ *
+ * The MTU is the MTU programmed directly into the XMAC/GMAC
+ * (inclusive of EtherII, VLAN, bug16011 padding)
+ *
+ * Locks required: None
+ * Return code: 0, EINVAL
+ */
+#define MC_CMD_SET_MAC 0x2c
+#define MC_CMD_SET_MAC_IN_LEN 24
+#define MC_CMD_SET_MAC_IN_MTU_OFST 0
+#define MC_CMD_SET_MAC_IN_DRAIN_OFST 4
+#define MC_CMD_SET_MAC_IN_ADDR_OFST 8
+#define MC_CMD_SET_MAC_IN_REJECT_OFST 16
+#define MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN 0
+#define MC_CMD_SET_MAC_IN_REJECT_UNCST_WIDTH 1
+#define MC_CMD_SET_MAC_IN_REJECT_BRDCST_LBN 1
+#define MC_CMD_SET_MAC_IN_REJECT_BRDCST_WIDTH 1
+#define MC_CMD_SET_MAC_IN_FCNTL_OFST 20
+#define MC_CMD_SET_MAC_OUT_LEN 0
+
+/* MC_CMD_PHY_STATS:
+ * Get generic PHY statistics
+ *
+ * This call returns the statistics for a generic PHY in a sparse
+ * array (indexed by the enumerate). Each value is represented by
+ * a 32bit number.
+ *
+ * If the DMA_ADDR is 0, then no DMA is performed, and the statistics
+ * may be read directly out of shared memory. If DMA_ADDR != 0, then
+ * the statistics are dmad to that (page-aligned location)
+ *
+ * Locks required: None
+ * Returns: 0, ETIME
+ * Response methods: shared memory, event
+ */
+#define MC_CMD_PHY_STATS 0x2d
+#define MC_CMD_PHY_STATS_IN_LEN 8
+#define MC_CMD_PHY_STATS_IN_DMA_ADDR_LO_OFST 0
+#define MC_CMD_PHY_STATS_IN_DMA_ADDR_HI_OFST 4
+#define MC_CMD_PHY_STATS_OUT_DMA_LEN 0
+#define MC_CMD_PHY_STATS_OUT_NO_DMA_LEN (MC_CMD_PHY_NSTATS * 4)
+
+/* Unified MAC statistics enumeration */
+#define MC_CMD_MAC_GENERATION_START 0
+#define MC_CMD_MAC_TX_PKTS 1
+#define MC_CMD_MAC_TX_PAUSE_PKTS 2
+#define MC_CMD_MAC_TX_CONTROL_PKTS 3
+#define MC_CMD_MAC_TX_UNICAST_PKTS 4
+#define MC_CMD_MAC_TX_MULTICAST_PKTS 5
+#define MC_CMD_MAC_TX_BROADCAST_PKTS 6
+#define MC_CMD_MAC_TX_BYTES 7
+#define MC_CMD_MAC_TX_BAD_BYTES 8
+#define MC_CMD_MAC_TX_LT64_PKTS 9
+#define MC_CMD_MAC_TX_64_PKTS 10
+#define MC_CMD_MAC_TX_65_TO_127_PKTS 11
+#define MC_CMD_MAC_TX_128_TO_255_PKTS 12
+#define MC_CMD_MAC_TX_256_TO_511_PKTS 13
+#define MC_CMD_MAC_TX_512_TO_1023_PKTS 14
+#define MC_CMD_MAC_TX_1024_TO_15XX_PKTS 15
+#define MC_CMD_MAC_TX_15XX_TO_JUMBO_PKTS 16
+#define MC_CMD_MAC_TX_GTJUMBO_PKTS 17
+#define MC_CMD_MAC_TX_BAD_FCS_PKTS 18
+#define MC_CMD_MAC_TX_SINGLE_COLLISION_PKTS 19
+#define MC_CMD_MAC_TX_MULTIPLE_COLLISION_PKTS 20
+#define MC_CMD_MAC_TX_EXCESSIVE_COLLISION_PKTS 21
+#define MC_CMD_MAC_TX_LATE_COLLISION_PKTS 22
+#define MC_CMD_MAC_TX_DEFERRED_PKTS 23
+#define MC_CMD_MAC_TX_EXCESSIVE_DEFERRED_PKTS 24
+#define MC_CMD_MAC_TX_NON_TCPUDP_PKTS 25
+#define MC_CMD_MAC_TX_MAC_SRC_ERR_PKTS 26
+#define MC_CMD_MAC_TX_IP_SRC_ERR_PKTS 27
+#define MC_CMD_MAC_RX_PKTS 28
+#define MC_CMD_MAC_RX_PAUSE_PKTS 29
+#define MC_CMD_MAC_RX_GOOD_PKTS 30
+#define MC_CMD_MAC_RX_CONTROL_PKTS 31
+#define MC_CMD_MAC_RX_UNICAST_PKTS 32
+#define MC_CMD_MAC_RX_MULTICAST_PKTS 33
+#define MC_CMD_MAC_RX_BROADCAST_PKTS 34
+#define MC_CMD_MAC_RX_BYTES 35
+#define MC_CMD_MAC_RX_BAD_BYTES 36
+#define MC_CMD_MAC_RX_64_PKTS 37
+#define MC_CMD_MAC_RX_65_TO_127_PKTS 38
+#define MC_CMD_MAC_RX_128_TO_255_PKTS 39
+#define MC_CMD_MAC_RX_256_TO_511_PKTS 40
+#define MC_CMD_MAC_RX_512_TO_1023_PKTS 41
+#define MC_CMD_MAC_RX_1024_TO_15XX_PKTS 42
+#define MC_CMD_MAC_RX_15XX_TO_JUMBO_PKTS 43
+#define MC_CMD_MAC_RX_GTJUMBO_PKTS 44
+#define MC_CMD_MAC_RX_UNDERSIZE_PKTS 45
+#define MC_CMD_MAC_RX_BAD_FCS_PKTS 46
+#define MC_CMD_MAC_RX_OVERFLOW_PKTS 47
+#define MC_CMD_MAC_RX_FALSE_CARRIER_PKTS 48
+#define MC_CMD_MAC_RX_SYMBOL_ERROR_PKTS 49
+#define MC_CMD_MAC_RX_ALIGN_ERROR_PKTS 50
+#define MC_CMD_MAC_RX_LENGTH_ERROR_PKTS 51
+#define MC_CMD_MAC_RX_INTERNAL_ERROR_PKTS 52
+#define MC_CMD_MAC_RX_JABBER_PKTS 53
+#define MC_CMD_MAC_RX_NODESC_DROPS 54
+#define MC_CMD_MAC_RX_LANES01_CHAR_ERR 55
+#define MC_CMD_MAC_RX_LANES23_CHAR_ERR 56
+#define MC_CMD_MAC_RX_LANES01_DISP_ERR 57
+#define MC_CMD_MAC_RX_LANES23_DISP_ERR 58
+#define MC_CMD_MAC_RX_MATCH_FAULT 59
+#define MC_CMD_GMAC_DMABUF_START 64
+#define MC_CMD_GMAC_DMABUF_END 95
+/* Insert new members here. */
+#define MC_CMD_MAC_GENERATION_END 96
+#define MC_CMD_MAC_NSTATS (MC_CMD_MAC_GENERATION_END+1)
+
+/* MC_CMD_MAC_STATS:
+ * Get unified GMAC/XMAC statistics
+ *
+ * This call returns unified statistics maintained by the MC as it
+ * switches between the GMAC and XMAC. The MC will write out all
+ * supported stats. The driver should zero initialise the buffer to
+ * guarantee consistent results.
+ *
+ * Locks required: None
+ * Returns: 0
+ * Response methods: shared memory, event
+ */
+#define MC_CMD_MAC_STATS 0x2e
+#define MC_CMD_MAC_STATS_IN_LEN 16
+#define MC_CMD_MAC_STATS_IN_DMA_ADDR_LO_OFST 0
+#define MC_CMD_MAC_STATS_IN_DMA_ADDR_HI_OFST 4
+#define MC_CMD_MAC_STATS_IN_CMD_OFST 8
+#define MC_CMD_MAC_STATS_CMD_DMA_LBN 0
+#define MC_CMD_MAC_STATS_CMD_DMA_WIDTH 1
+#define MC_CMD_MAC_STATS_CMD_CLEAR_LBN 1
+#define MC_CMD_MAC_STATS_CMD_CLEAR_WIDTH 1
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE_LBN 2
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE_WIDTH 1
+/* Remaining PERIOD* fields only relevant when PERIODIC_CHANGE is set */
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE_LBN 3
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE_WIDTH 1
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_CLEAR_LBN 4
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_CLEAR_WIDTH 1
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_NOEVENT_LBN 5
+#define MC_CMD_MAC_STATS_CMD_PERIODIC_NOEVENT_WIDTH 1
+#define MC_CMD_MAC_STATS_CMD_PERIOD_MS_LBN 16
+#define MC_CMD_MAC_STATS_CMD_PERIOD_MS_WIDTH 16
+#define MC_CMD_MAC_STATS_IN_DMA_LEN_OFST 12
+
+#define MC_CMD_MAC_STATS_OUT_LEN 0
+
+/* Callisto flags */
+#define MC_CMD_SFT9001_ROBUST_LBN 0
+#define MC_CMD_SFT9001_ROBUST_WIDTH 1
+#define MC_CMD_SFT9001_SHORT_REACH_LBN 1
+#define MC_CMD_SFT9001_SHORT_REACH_WIDTH 1
+
+/* MC_CMD_SFT9001_GET:
+ * Read current callisto specific setting
+ *
+ * Locks required: None
+ * Returns: 0, ETIME
+ */
+#define MC_CMD_SFT9001_GET 0x30
+#define MC_CMD_SFT9001_GET_IN_LEN 0
+#define MC_CMD_SFT9001_GET_OUT_LEN 4
+#define MC_CMD_SFT9001_GET_OUT_FLAGS_OFST 0
+
+/* MC_CMD_SFT9001_SET:
+ * Write current callisto specific setting
+ *
+ * Locks required: None
+ * Returns: 0, ETIME, EINVAL
+ */
+#define MC_CMD_SFT9001_SET 0x31
+#define MC_CMD_SFT9001_SET_IN_LEN 4
+#define MC_CMD_SFT9001_SET_IN_FLAGS_OFST 0
+#define MC_CMD_SFT9001_SET_OUT_LEN 0
+
+
+/* MC_CMD_WOL_FILTER_SET:
+ * Set a WoL filter
+ *
+ * Locks required: None
+ * Returns: 0, EBUSY, EINVAL, ENOSYS
+ */
+#define MC_CMD_WOL_FILTER_SET 0x32
+#define MC_CMD_WOL_FILTER_SET_IN_LEN 192 /* 190 rounded up to a word */
+#define MC_CMD_WOL_FILTER_SET_IN_FILTER_MODE_OFST 0
+#define MC_CMD_WOL_FILTER_SET_IN_WOL_TYPE_OFST 4
+
+/* There is a union at offset 8, following defines overlap due to
+ * this */
+#define MC_CMD_WOL_FILTER_SET_IN_DATA_OFST 8
+
+#define MC_CMD_WOL_FILTER_SET_IN_MAGIC_MAC_OFST \
+ MC_CMD_WOL_FILTER_SET_IN_DATA_OFST
+
+#define MC_CMD_WOL_FILTER_SET_IN_IPV4_SYN_SRC_IP_OFST \
+ MC_CMD_WOL_FILTER_SET_IN_DATA_OFST
+#define MC_CMD_WOL_FILTER_SET_IN_IPV4_SYN_DST_IP_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 4)
+#define MC_CMD_WOL_FILTER_SET_IN_IPV4_SYN_SRC_PORT_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 8)
+#define MC_CMD_WOL_FILTER_SET_IN_IPV4_SYN_DST_PORT_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 10)
+
+#define MC_CMD_WOL_FILTER_SET_IN_IPV6_SYN_SRC_IP_OFST \
+ MC_CMD_WOL_FILTER_SET_IN_DATA_OFST
+#define MC_CMD_WOL_FILTER_SET_IN_IPV6_SYN_DST_IP_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 16)
+#define MC_CMD_WOL_FILTER_SET_IN_IPV6_SYN_SRC_PORT_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 32)
+#define MC_CMD_WOL_FILTER_SET_IN_IPV6_SYN_DST_PORT_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 34)
+
+#define MC_CMD_WOL_FILTER_SET_IN_BITMAP_MASK_OFST \
+ MC_CMD_WOL_FILTER_SET_IN_DATA_OFST
+#define MC_CMD_WOL_FILTER_SET_IN_BITMAP_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 48)
+#define MC_CMD_WOL_FILTER_SET_IN_BITMAP_LEN_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 176)
+#define MC_CMD_WOL_FILTER_SET_IN_BITMAP_LAYER3_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 177)
+#define MC_CMD_WOL_FILTER_SET_IN_BITMAP_LAYER4_OFST \
+ (MC_CMD_WOL_FILTER_SET_IN_DATA_OFST + 178)
+
+#define MC_CMD_WOL_FILTER_SET_IN_LINK_MASK_OFST \
+ MC_CMD_WOL_FILTER_SET_IN_DATA_OFST
+#define MC_CMD_WOL_FILTER_SET_IN_LINK_UP_LBN 0
+#define MC_CMD_WOL_FILTER_SET_IN_LINK_UP_WIDTH 1
+#define MC_CMD_WOL_FILTER_SET_IN_LINK_DOWN_LBN 1
+#define MC_CMD_WOL_FILTER_SET_IN_LINK_DOWN_WIDTH 1
+
+#define MC_CMD_WOL_FILTER_SET_OUT_LEN 4
+#define MC_CMD_WOL_FILTER_SET_OUT_FILTER_ID_OFST 0
+
+/* WOL Filter types enumeration */
+#define MC_CMD_WOL_TYPE_MAGIC 0x0
+ /* unused 0x1 */
+#define MC_CMD_WOL_TYPE_WIN_MAGIC 0x2
+#define MC_CMD_WOL_TYPE_IPV4_SYN 0x3
+#define MC_CMD_WOL_TYPE_IPV6_SYN 0x4
+#define MC_CMD_WOL_TYPE_BITMAP 0x5
+#define MC_CMD_WOL_TYPE_LINK 0x6
+#define MC_CMD_WOL_TYPE_MAX 0x7
+
+#define MC_CMD_FILTER_MODE_SIMPLE 0x0
+#define MC_CMD_FILTER_MODE_STRUCTURED 0xffffffff
+
+/* MC_CMD_WOL_FILTER_REMOVE:
+ * Remove a WoL filter
+ *
+ * Locks required: None
+ * Returns: 0, EINVAL, ENOSYS
+ */
+#define MC_CMD_WOL_FILTER_REMOVE 0x33
+#define MC_CMD_WOL_FILTER_REMOVE_IN_LEN 4
+#define MC_CMD_WOL_FILTER_REMOVE_IN_FILTER_ID_OFST 0
+#define MC_CMD_WOL_FILTER_REMOVE_OUT_LEN 0
+
+
+/* MC_CMD_WOL_FILTER_RESET:
+ * Reset (i.e. remove all) WoL filters
+ *
+ * Locks required: None
+ * Returns: 0, ENOSYS
+ */
+#define MC_CMD_WOL_FILTER_RESET 0x34
+#define MC_CMD_WOL_FILTER_RESET_IN_LEN 0
+#define MC_CMD_WOL_FILTER_RESET_OUT_LEN 0
+
+/* MC_CMD_SET_MCAST_HASH:
+ * Set the MCASH hash value without otherwise
+ * reconfiguring the MAC
+ */
+#define MC_CMD_SET_MCAST_HASH 0x35
+#define MC_CMD_SET_MCAST_HASH_IN_LEN 32
+#define MC_CMD_SET_MCAST_HASH_IN_HASH0_OFST 0
+#define MC_CMD_SET_MCAST_HASH_IN_HASH1_OFST 16
+#define MC_CMD_SET_MCAST_HASH_OUT_LEN 0
+
+/* MC_CMD_NVRAM_TYPES:
+ * Return bitfield indicating available types of virtual NVRAM partitions
+ *
+ * Locks required: none
+ * Returns: 0
+ */
+#define MC_CMD_NVRAM_TYPES 0x36
+#define MC_CMD_NVRAM_TYPES_IN_LEN 0
+#define MC_CMD_NVRAM_TYPES_OUT_LEN 4
+#define MC_CMD_NVRAM_TYPES_OUT_TYPES_OFST 0
+
+/* Supported NVRAM types */
+#define MC_CMD_NVRAM_TYPE_DISABLED_CALLISTO 0
+#define MC_CMD_NVRAM_TYPE_MC_FW 1
+#define MC_CMD_NVRAM_TYPE_MC_FW_BACKUP 2
+#define MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0 3
+#define MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1 4
+#define MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0 5
+#define MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1 6
+#define MC_CMD_NVRAM_TYPE_EXP_ROM 7
+#define MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT0 8
+#define MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1 9
+#define MC_CMD_NVRAM_TYPE_PHY_PORT0 10
+#define MC_CMD_NVRAM_TYPE_PHY_PORT1 11
+#define MC_CMD_NVRAM_TYPE_LOG 12
+
+/* MC_CMD_NVRAM_INFO:
+ * Read info about a virtual NVRAM partition
+ *
+ * Locks required: none
+ * Returns: 0, EINVAL (bad type)
+ */
+#define MC_CMD_NVRAM_INFO 0x37
+#define MC_CMD_NVRAM_INFO_IN_LEN 4
+#define MC_CMD_NVRAM_INFO_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_INFO_OUT_LEN 24
+#define MC_CMD_NVRAM_INFO_OUT_TYPE_OFST 0
+#define MC_CMD_NVRAM_INFO_OUT_SIZE_OFST 4
+#define MC_CMD_NVRAM_INFO_OUT_ERASESIZE_OFST 8
+#define MC_CMD_NVRAM_INFO_OUT_FLAGS_OFST 12
+#define MC_CMD_NVRAM_PROTECTED_LBN 0
+#define MC_CMD_NVRAM_PROTECTED_WIDTH 1
+#define MC_CMD_NVRAM_INFO_OUT_PHYSDEV_OFST 16
+#define MC_CMD_NVRAM_INFO_OUT_PHYSADDR_OFST 20
+
+/* MC_CMD_NVRAM_UPDATE_START:
+ * Start a group of update operations on a virtual NVRAM partition
+ *
+ * Locks required: PHY_LOCK if type==*PHY*
+ * Returns: 0, EINVAL (bad type), EACCES (if PHY_LOCK required and not held)
+ */
+#define MC_CMD_NVRAM_UPDATE_START 0x38
+#define MC_CMD_NVRAM_UPDATE_START_IN_LEN 4
+#define MC_CMD_NVRAM_UPDATE_START_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_UPDATE_START_OUT_LEN 0
+
+/* MC_CMD_NVRAM_READ:
+ * Read data from a virtual NVRAM partition
+ *
+ * Locks required: PHY_LOCK if type==*PHY*
+ * Returns: 0, EINVAL (bad type/offset/length), EACCES (if PHY_LOCK required and not held)
+ */
+#define MC_CMD_NVRAM_READ 0x39
+#define MC_CMD_NVRAM_READ_IN_LEN 12
+#define MC_CMD_NVRAM_READ_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_READ_IN_OFFSET_OFST 4
+#define MC_CMD_NVRAM_READ_IN_LENGTH_OFST 8
+#define MC_CMD_NVRAM_READ_OUT_LEN(_read_bytes) (_read_bytes)
+#define MC_CMD_NVRAM_READ_OUT_READ_BUFFER_OFST 0
+
+/* MC_CMD_NVRAM_WRITE:
+ * Write data to a virtual NVRAM partition
+ *
+ * Locks required: PHY_LOCK if type==*PHY*
+ * Returns: 0, EINVAL (bad type/offset/length), EACCES (if PHY_LOCK required and not held)
+ */
+#define MC_CMD_NVRAM_WRITE 0x3a
+#define MC_CMD_NVRAM_WRITE_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_WRITE_IN_OFFSET_OFST 4
+#define MC_CMD_NVRAM_WRITE_IN_LENGTH_OFST 8
+#define MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_OFST 12
+#define MC_CMD_NVRAM_WRITE_IN_LEN(_write_bytes) (12 + _write_bytes)
+#define MC_CMD_NVRAM_WRITE_OUT_LEN 0
+
+/* MC_CMD_NVRAM_ERASE:
+ * Erase sector(s) from a virtual NVRAM partition
+ *
+ * Locks required: PHY_LOCK if type==*PHY*
+ * Returns: 0, EINVAL (bad type/offset/length), EACCES (if PHY_LOCK required and not held)
+ */
+#define MC_CMD_NVRAM_ERASE 0x3b
+#define MC_CMD_NVRAM_ERASE_IN_LEN 12
+#define MC_CMD_NVRAM_ERASE_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_ERASE_IN_OFFSET_OFST 4
+#define MC_CMD_NVRAM_ERASE_IN_LENGTH_OFST 8
+#define MC_CMD_NVRAM_ERASE_OUT_LEN 0
+
+/* MC_CMD_NVRAM_UPDATE_FINISH:
+ * Finish a group of update operations on a virtual NVRAM partition
+ *
+ * Locks required: PHY_LOCK if type==*PHY*
+ * Returns: 0, EINVAL (bad type/offset/length), EACCES (if PHY_LOCK required and not held)
+ */
+#define MC_CMD_NVRAM_UPDATE_FINISH 0x3c
+#define MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN 8
+#define MC_CMD_NVRAM_UPDATE_FINISH_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_UPDATE_FINISH_IN_REBOOT_OFST 4
+#define MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN 0
+
+/* MC_CMD_REBOOT:
+ * Reboot the MC.
+ *
+ * The AFTER_ASSERTION flag is intended to be used when the driver notices
+ * an assertion failure (at which point it is expected to perform a complete
+ * tear down and reinitialise), to allow both ports to reset the MC once
+ * in an atomic fashion.
+ *
+ * Production mc firmwares are generally compiled with REBOOT_ON_ASSERT=1,
+ * which means that they will automatically reboot out of the assertion
+ * handler, so this is in practise an optional operation. It is still
+ * recommended that drivers execute this to support custom firmwares
+ * with REBOOT_ON_ASSERT=0.
+ *
+ * Locks required: NONE
+ * Returns: Nothing. You get back a response with ERR=1, DATALEN=0
+ */
+#define MC_CMD_REBOOT 0x3d
+#define MC_CMD_REBOOT_IN_LEN 4
+#define MC_CMD_REBOOT_IN_FLAGS_OFST 0
+#define MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION 1
+#define MC_CMD_REBOOT_OUT_LEN 0
+
+/* MC_CMD_SCHEDINFO:
+ * Request scheduler info. from the MC.
+ *
+ * Locks required: NONE
+ * Returns: An array of (timeslice,maximum overrun), one for each thread,
+ * in ascending order of thread address.s
+ */
+#define MC_CMD_SCHEDINFO 0x3e
+#define MC_CMD_SCHEDINFO_IN_LEN 0
+
+
+/* MC_CMD_SET_REBOOT_MODE: (debug)
+ * Set the mode for the next MC reboot.
+ *
+ * Locks required: NONE
+ *
+ * Sets the reboot mode to the specified value. Returns the old mode.
+ */
+#define MC_CMD_REBOOT_MODE 0x3f
+#define MC_CMD_REBOOT_MODE_IN_LEN 4
+#define MC_CMD_REBOOT_MODE_IN_VALUE_OFST 0
+#define MC_CMD_REBOOT_MODE_OUT_LEN 4
+#define MC_CMD_REBOOT_MODE_OUT_VALUE_OFST 0
+#define MC_CMD_REBOOT_MODE_NORMAL 0
+#define MC_CMD_REBOOT_MODE_SNAPPER 3
+
+/* MC_CMD_DEBUG_LOG:
+ * Null request/response command (debug)
+ * - sequence number is always zero
+ * - only supported on the UART interface
+ * (the same set of bytes is delivered as an
+ * event over PCI)
+ */
+#define MC_CMD_DEBUG_LOG 0x40
+#define MC_CMD_DEBUG_LOG_IN_LEN 0
+#define MC_CMD_DEBUG_LOG_OUT_LEN 0
+
+/* Generic sensor enumeration. Note that a dual port NIC
+ * will EITHER expose PHY_COMMON_TEMP OR PHY0_TEMP and
+ * PHY1_TEMP depending on whether there is a single sensor
+ * in the vicinity of the two port, or one per port.
+ */
+#define MC_CMD_SENSOR_CONTROLLER_TEMP 0 /* degC */
+#define MC_CMD_SENSOR_PHY_COMMON_TEMP 1 /* degC */
+#define MC_CMD_SENSOR_CONTROLLER_COOLING 2 /* bool */
+#define MC_CMD_SENSOR_PHY0_TEMP 3 /* degC */
+#define MC_CMD_SENSOR_PHY0_COOLING 4 /* bool */
+#define MC_CMD_SENSOR_PHY1_TEMP 5 /* degC */
+#define MC_CMD_SENSOR_PHY1_COOLING 6 /* bool */
+#define MC_CMD_SENSOR_IN_1V0 7 /* mV */
+#define MC_CMD_SENSOR_IN_1V2 8 /* mV */
+#define MC_CMD_SENSOR_IN_1V8 9 /* mV */
+#define MC_CMD_SENSOR_IN_2V5 10 /* mV */
+#define MC_CMD_SENSOR_IN_3V3 11 /* mV */
+#define MC_CMD_SENSOR_IN_12V0 12 /* mV */
+
+
+/* Sensor state */
+#define MC_CMD_SENSOR_STATE_OK 0
+#define MC_CMD_SENSOR_STATE_WARNING 1
+#define MC_CMD_SENSOR_STATE_FATAL 2
+#define MC_CMD_SENSOR_STATE_BROKEN 3
+
+/* MC_CMD_SENSOR_INFO:
+ * Returns information about every available sensor.
+ *
+ * Each sensor has a single (16bit) value, and a corresponding state.
+ * The mapping between value and sensor is nominally determined by the
+ * MC, but in practise is implemented as zero (BROKEN), one (TEMPERATURE),
+ * or two (VOLTAGE) ranges per sensor per state.
+ *
+ * This call returns a mask (32bit) of the sensors that are supported
+ * by this platform, then an array (indexed by MC_CMD_SENSOR) of byte
+ * offsets to the per-sensor arrays. Each sensor array has four 16bit
+ * numbers, min1, max1, min2, max2.
+ *
+ * Locks required: None
+ * Returns: 0
+ */
+#define MC_CMD_SENSOR_INFO 0x41
+#define MC_CMD_SENSOR_INFO_IN_LEN 0
+#define MC_CMD_SENSOR_INFO_OUT_MASK_OFST 0
+#define MC_CMD_SENSOR_INFO_OUT_OFFSET_OFST(_x) \
+ (4 + (_x))
+#define MC_CMD_SENSOR_INFO_OUT_MIN1_OFST(_ofst) \
+ ((_ofst) + 0)
+#define MC_CMD_SENSOR_INFO_OUT_MAX1_OFST(_ofst) \
+ ((_ofst) + 2)
+#define MC_CMD_SENSOR_INFO_OUT_MIN2_OFST(_ofst) \
+ ((_ofst) + 4)
+#define MC_CMD_SENSOR_INFO_OUT_MAX2_OFST(_ofst) \
+ ((_ofst) + 6)
+
+/* MC_CMD_READ_SENSORS
+ * Returns the current reading from each sensor
+ *
+ * Returns a sparse array of sensor readings (indexed by the sensor
+ * type) into host memory. Each array element is a dword.
+ *
+ * The MC will send a SENSOREVT event every time any sensor changes state. The
+ * driver is responsible for ensuring that it doesn't miss any events. The board
+ * will function normally if all sensors are in STATE_OK or state_WARNING.
+ * Otherwise the board should not be expected to function.
+ */
+#define MC_CMD_READ_SENSORS 0x42
+#define MC_CMD_READ_SENSORS_IN_LEN 8
+#define MC_CMD_READ_SENSORS_IN_DMA_ADDR_LO_OFST 0
+#define MC_CMD_READ_SENSORS_IN_DMA_ADDR_HI_OFST 4
+#define MC_CMD_READ_SENSORS_OUT_LEN 0
+
+/* Sensor reading fields */
+#define MC_CMD_READ_SENSOR_VALUE_LBN 0
+#define MC_CMD_READ_SENSOR_VALUE_WIDTH 16
+#define MC_CMD_READ_SENSOR_STATE_LBN 16
+#define MC_CMD_READ_SENSOR_STATE_WIDTH 8
+
+
+/* MC_CMD_GET_PHY_STATE:
+ * Report current state of PHY. A "zombie" PHY is a PHY that has failed to
+ * boot (e.g. due to missing or corrupted firmware).
+ *
+ * Locks required: None
+ * Return code: 0
+ */
+#define MC_CMD_GET_PHY_STATE 0x43
+
+#define MC_CMD_GET_PHY_STATE_IN_LEN 0
+#define MC_CMD_GET_PHY_STATE_OUT_LEN 4
+#define MC_CMD_GET_PHY_STATE_STATE_OFST 0
+/* PHY state enumeration: */
+#define MC_CMD_PHY_STATE_OK 1
+#define MC_CMD_PHY_STATE_ZOMBIE 2
+
+
+/* 802.1Qbb control. 8 Tx queues that map to priorities 0 - 7. Use all 1s to
+ * disable 802.Qbb for a given priority. */
+#define MC_CMD_SETUP_8021QBB 0x44
+#define MC_CMD_SETUP_8021QBB_IN_LEN 32
+#define MC_CMD_SETUP_8021QBB_OUT_LEN 0
+#define MC_CMD_SETUP_8021QBB_IN_TXQS_OFFST 0
+
+
+/* MC_CMD_WOL_FILTER_GET:
+ * Retrieve ID of any WoL filters
+ *
+ * Locks required: None
+ * Returns: 0, ENOSYS
+ */
+#define MC_CMD_WOL_FILTER_GET 0x45
+#define MC_CMD_WOL_FILTER_GET_IN_LEN 0
+#define MC_CMD_WOL_FILTER_GET_OUT_LEN 4
+#define MC_CMD_WOL_FILTER_GET_OUT_FILTER_ID_OFST 0
+
+
+/* MC_CMD_ADD_LIGHTSOUT_OFFLOAD:
+ * Offload a protocol to NIC for lights-out state
+ *
+ * Locks required: None
+ * Returns: 0, ENOSYS
+ */
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD 0x46
+
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_LEN 16
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_PROTOCOL_OFST 0
+
+/* There is a union at offset 4, following defines overlap due to
+ * this */
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_DATA_OFST 4
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_ARPMAC_OFST 4
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_ARPIP_OFST 10
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_NSMAC_OFST 4
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_NSSNIPV6_OFST 10
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_IN_NSIPV6_OFST 26
+
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_OUT_LEN 4
+#define MC_CMD_ADD_LIGHTSOUT_OFFLOAD_OUT_FILTER_ID_OFST 0
+
+
+/* MC_CMD_REMOVE_LIGHTSOUT_PROTOCOL_OFFLOAD:
+ * Offload a protocol to NIC for lights-out state
+ *
+ * Locks required: None
+ * Returns: 0, ENOSYS
+ */
+#define MC_CMD_REMOVE_LIGHTSOUT_OFFLOAD 0x47
+#define MC_CMD_REMOVE_LIGHTSOUT_OFFLOAD_IN_LEN 8
+#define MC_CMD_REMOVE_LIGHTSOUT_OFFLOAD_OUT_LEN 0
+
+#define MC_CMD_REMOVE_LIGHTSOUT_OFFLOAD_IN_PROTOCOL_OFST 0
+#define MC_CMD_REMOVE_LIGHTSOUT_OFFLOAD_IN_FILTER_ID_OFST 4
+
+/* Lights-out offload protocols enumeration */
+#define MC_CMD_LIGHTSOUT_OFFLOAD_PROTOCOL_ARP 0x1
+#define MC_CMD_LIGHTSOUT_OFFLOAD_PROTOCOL_NS 0x2
+
+
+/* MC_CMD_MAC_RESET_RESTORE:
+ * Restore MAC after block reset
+ *
+ * Locks required: None
+ * Returns: 0
+ */
+
+#define MC_CMD_MAC_RESET_RESTORE 0x48
+#define MC_CMD_MAC_RESET_RESTORE_IN_LEN 0
+#define MC_CMD_MAC_RESET_RESTORE_OUT_LEN 0
+
+
+/* MC_CMD_TEST_ASSERT:
+ * Deliberately trigger an assert-detonation in the firmware for testing
+ * purposes (i.e. to allow tests that the driver copes gracefully).
+ *
+ * Locks required: None
+ * Returns: 0
+ */
+
+#define MC_CMD_TESTASSERT 0x49
+#define MC_CMD_TESTASSERT_IN_LEN 0
+#define MC_CMD_TESTASSERT_OUT_LEN 0
+
+/* MC_CMD_WORKAROUND 0x4a
+ *
+ * Enable/Disable a given workaround. The mcfw will return EINVAL if it
+ * doesn't understand the given workaround number - which should not
+ * be treated as a hard error by client code.
+ *
+ * This op does not imply any semantics about each workaround, that's between
+ * the driver and the mcfw on a per-workaround basis.
+ *
+ * Locks required: None
+ * Returns: 0, EINVAL
+ */
+#define MC_CMD_WORKAROUND 0x4a
+#define MC_CMD_WORKAROUND_IN_LEN 8
+#define MC_CMD_WORKAROUND_IN_TYPE_OFST 0
+#define MC_CMD_WORKAROUND_BUG17230 1
+#define MC_CMD_WORKAROUND_IN_ENABLED_OFST 4
+#define MC_CMD_WORKAROUND_OUT_LEN 0
+
+/* MC_CMD_GET_PHY_MEDIA_INFO:
+ * Read media-specific data from PHY (e.g. SFP/SFP+ module ID information for
+ * SFP+ PHYs).
+ *
+ * The "media type" can be found via GET_PHY_CFG (GET_PHY_CFG_OUT_MEDIA_TYPE);
+ * the valid "page number" input values, and the output data, are interpreted
+ * on a per-type basis.
+ *
+ * For SFP+: PAGE=0 or 1 returns a 128-byte block read from module I2C address
+ * 0xA0 offset 0 or 0x80.
+ * Anything else: currently undefined.
+ *
+ * Locks required: None
+ * Return code: 0
+ */
+#define MC_CMD_GET_PHY_MEDIA_INFO 0x4b
+#define MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN 4
+#define MC_CMD_GET_PHY_MEDIA_INFO_IN_PAGE_OFST 0
+#define MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(_num_bytes) (4 + (_num_bytes))
+#define MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATALEN_OFST 0
+#define MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST 4
+
+/* MC_CMD_NVRAM_TEST:
+ * Test a particular NVRAM partition for valid contents (where "valid"
+ * depends on the type of partition).
+ *
+ * Locks required: None
+ * Return code: 0
+ */
+#define MC_CMD_NVRAM_TEST 0x4c
+#define MC_CMD_NVRAM_TEST_IN_LEN 4
+#define MC_CMD_NVRAM_TEST_IN_TYPE_OFST 0
+#define MC_CMD_NVRAM_TEST_OUT_LEN 4
+#define MC_CMD_NVRAM_TEST_OUT_RESULT_OFST 0
+#define MC_CMD_NVRAM_TEST_PASS 0
+#define MC_CMD_NVRAM_TEST_FAIL 1
+#define MC_CMD_NVRAM_TEST_NOTSUPP 2
+
+/* MC_CMD_MRSFP_TWEAK: (debug)
+ * Read status and/or set parameters for the "mrsfp" driver in mr_rusty builds.
+ * I2C I/O expander bits are always read; if equaliser parameters are supplied,
+ * they are configured first.
+ *
+ * Locks required: None
+ * Return code: 0, EINVAL
+ */
+#define MC_CMD_MRSFP_TWEAK 0x4d
+#define MC_CMD_MRSFP_TWEAK_IN_LEN_READ_ONLY 0
+#define MC_CMD_MRSFP_TWEAK_IN_LEN_EQ_CONFIG 16
+#define MC_CMD_MRSFP_TWEAK_IN_TXEQ_LEVEL_OFST 0 /* 0-6 low->high de-emph. */
+#define MC_CMD_MRSFP_TWEAK_IN_TXEQ_DT_CFG_OFST 4 /* 0-8 low->high ref.V */
+#define MC_CMD_MRSFP_TWEAK_IN_RXEQ_BOOST_OFST 8 /* 0-8 low->high boost */
+#define MC_CMD_MRSFP_TWEAK_IN_RXEQ_DT_CFG_OFST 12 /* 0-8 low->high ref.V */
+#define MC_CMD_MRSFP_TWEAK_OUT_LEN 12
+#define MC_CMD_MRSFP_TWEAK_OUT_IOEXP_INPUTS_OFST 0 /* input bits */
+#define MC_CMD_MRSFP_TWEAK_OUT_IOEXP_OUTPUTS_OFST 4 /* output bits */
+#define MC_CMD_MRSFP_TWEAK_OUT_IOEXP_DIRECTION_OFST 8 /* dirs: 0=out, 1=in */
+
+/* MC_CMD_TEST_HACK: (debug (unsurprisingly))
+ * Change bits of network port state for test purposes in ways that would never be
+ * useful in normal operation and so need a special command to change. */
+#define MC_CMD_TEST_HACK 0x2f
+#define MC_CMD_TEST_HACK_IN_LEN 8
+#define MC_CMD_TEST_HACK_IN_TXPAD_OFST 0
+#define MC_CMD_TEST_HACK_IN_TXPAD_AUTO 0 /* Let the MC manage things */
+#define MC_CMD_TEST_HACK_IN_TXPAD_ON 1 /* Force on */
+#define MC_CMD_TEST_HACK_IN_TXPAD_OFF 2 /* Force on */
+#define MC_CMD_TEST_HACK_IN_IPG_OFST 4 /* Takes a value in bits */
+#define MC_CMD_TEST_HACK_IN_IPG_AUTO 0 /* The MC picks the value */
+#define MC_CMD_TEST_HACK_OUT_LEN 0
+
+/* MC_CMD_SENSOR_SET_LIMS: (debug) (mostly) adjust the sensor limits. This
+ * is a warranty-voiding operation.
+ *
+ * IN: sensor identifier (one of the enumeration starting with MC_CMD_SENSOR_CONTROLLER_TEMP
+ * followed by 4 32-bit values: min(warning) max(warning), min(fatal), max(fatal). Which
+ * of these limits are meaningful and what their interpretation is is sensor-specific.
+ *
+ * OUT: nothing
+ *
+ * Returns: ENOENT if the sensor specified does not exist, EINVAL if the limits are
+ * out of range.
+ */
+#define MC_CMD_SENSOR_SET_LIMS 0x4e
+#define MC_CMD_SENSOR_SET_LIMS_IN_LEN 20
+#define MC_CMD_SENSOR_SET_LIMS_IN_SENSOR_OFST 0
+#define MC_CMD_SENSOR_SET_LIMS_IN_LOW0_OFST 4
+#define MC_CMD_SENSOR_SET_LIMS_IN_HI0_OFST 8
+#define MC_CMD_SENSOR_SET_LIMS_IN_LOW1_OFST 12
+#define MC_CMD_SENSOR_SET_LIMS_IN_HI1_OFST 16
+
+/* Do NOT add new commands beyond 0x4f as part of 3.0 : 0x50 - 0x7f will be
+ * used for post-3.0 extensions. If you run out of space, look for gaps or
+ * commands that are unused in the existing range. */
+
+#endif /* MCDI_PCOL_H */
diff --git a/drivers/net/ethernet/sfc/mcdi_phy.c b/drivers/net/ethernet/sfc/mcdi_phy.c
new file mode 100644
index 000000000000..6c63ab0710af
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mcdi_phy.c
@@ -0,0 +1,754 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2009-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+/*
+ * Driver for PHY related operations via MCDI.
+ */
+
+#include <linux/slab.h>
+#include "efx.h"
+#include "phy.h"
+#include "mcdi.h"
+#include "mcdi_pcol.h"
+#include "nic.h"
+#include "selftest.h"
+
+struct efx_mcdi_phy_data {
+ u32 flags;
+ u32 type;
+ u32 supported_cap;
+ u32 channel;
+ u32 port;
+ u32 stats_mask;
+ u8 name[20];
+ u32 media;
+ u32 mmd_mask;
+ u8 revision[20];
+ u32 forced_cap;
+};
+
+static int
+efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg)
+{
+ u8 outbuf[MC_CMD_GET_PHY_CFG_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0);
+ BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name));
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS);
+ cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE);
+ cfg->supported_cap =
+ MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
+ cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL);
+ cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT);
+ cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK);
+ memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME),
+ sizeof(cfg->name));
+ cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE);
+ cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK);
+ memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION),
+ sizeof(cfg->revision));
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities,
+ u32 flags, u32 loopback_mode,
+ u32 loopback_speed)
+{
+ u8 inbuf[MC_CMD_SET_LINK_IN_LEN];
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0);
+
+ MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities);
+ MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags);
+ MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode);
+ MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf),
+ NULL, 0, NULL);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes)
+{
+ u8 outbuf[MC_CMD_GET_LOOPBACK_MODES_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) {
+ rc = -EIO;
+ goto fail;
+ }
+
+ *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_SUGGESTED);
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad, u16 addr,
+ u16 *value_out, u32 *status_out)
+{
+ u8 inbuf[MC_CMD_MDIO_READ_IN_LEN];
+ u8 outbuf[MC_CMD_MDIO_READ_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, bus);
+ MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
+ MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
+ MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ *value_out = (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
+ *status_out = MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS);
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad, u16 addr,
+ u16 value, u32 *status_out)
+{
+ u8 inbuf[MC_CMD_MDIO_WRITE_IN_LEN];
+ u8 outbuf[MC_CMD_MDIO_WRITE_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, bus);
+ MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad);
+ MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad);
+ MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr);
+ MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf),
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ goto fail;
+
+ *status_out = MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS);
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static u32 mcdi_to_ethtool_cap(u32 media, u32 cap)
+{
+ u32 result = 0;
+
+ switch (media) {
+ case MC_CMD_MEDIA_KX4:
+ result |= SUPPORTED_Backplane;
+ if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
+ result |= SUPPORTED_1000baseKX_Full;
+ if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
+ result |= SUPPORTED_10000baseKX4_Full;
+ break;
+
+ case MC_CMD_MEDIA_XFP:
+ case MC_CMD_MEDIA_SFP_PLUS:
+ result |= SUPPORTED_FIBRE;
+ break;
+
+ case MC_CMD_MEDIA_BASE_T:
+ result |= SUPPORTED_TP;
+ if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
+ result |= SUPPORTED_10baseT_Half;
+ if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
+ result |= SUPPORTED_10baseT_Full;
+ if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
+ result |= SUPPORTED_100baseT_Half;
+ if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
+ result |= SUPPORTED_100baseT_Full;
+ if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
+ result |= SUPPORTED_1000baseT_Half;
+ if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
+ result |= SUPPORTED_1000baseT_Full;
+ if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
+ result |= SUPPORTED_10000baseT_Full;
+ break;
+ }
+
+ if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
+ result |= SUPPORTED_Pause;
+ if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
+ result |= SUPPORTED_Asym_Pause;
+ if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
+ result |= SUPPORTED_Autoneg;
+
+ return result;
+}
+
+static u32 ethtool_to_mcdi_cap(u32 cap)
+{
+ u32 result = 0;
+
+ if (cap & SUPPORTED_10baseT_Half)
+ result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN);
+ if (cap & SUPPORTED_10baseT_Full)
+ result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN);
+ if (cap & SUPPORTED_100baseT_Half)
+ result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN);
+ if (cap & SUPPORTED_100baseT_Full)
+ result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
+ if (cap & SUPPORTED_1000baseT_Half)
+ result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
+ if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full))
+ result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
+ if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full))
+ result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
+ if (cap & SUPPORTED_Pause)
+ result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN);
+ if (cap & SUPPORTED_Asym_Pause)
+ result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN);
+ if (cap & SUPPORTED_Autoneg)
+ result |= (1 << MC_CMD_PHY_CAP_AN_LBN);
+
+ return result;
+}
+
+static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ enum efx_phy_mode mode, supported;
+ u32 flags;
+
+ /* TODO: Advertise the capabilities supported by this PHY */
+ supported = 0;
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_TXDIS_LBN))
+ supported |= PHY_MODE_TX_DISABLED;
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_LOWPOWER_LBN))
+ supported |= PHY_MODE_LOW_POWER;
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_POWEROFF_LBN))
+ supported |= PHY_MODE_OFF;
+
+ mode = efx->phy_mode & supported;
+
+ flags = 0;
+ if (mode & PHY_MODE_TX_DISABLED)
+ flags |= (1 << MC_CMD_SET_LINK_TXDIS_LBN);
+ if (mode & PHY_MODE_LOW_POWER)
+ flags |= (1 << MC_CMD_SET_LINK_LOWPOWER_LBN);
+ if (mode & PHY_MODE_OFF)
+ flags |= (1 << MC_CMD_SET_LINK_POWEROFF_LBN);
+
+ return flags;
+}
+
+static u32 mcdi_to_ethtool_media(u32 media)
+{
+ switch (media) {
+ case MC_CMD_MEDIA_XAUI:
+ case MC_CMD_MEDIA_CX4:
+ case MC_CMD_MEDIA_KX4:
+ return PORT_OTHER;
+
+ case MC_CMD_MEDIA_XFP:
+ case MC_CMD_MEDIA_SFP_PLUS:
+ return PORT_FIBRE;
+
+ case MC_CMD_MEDIA_BASE_T:
+ return PORT_TP;
+
+ default:
+ return PORT_OTHER;
+ }
+}
+
+static int efx_mcdi_phy_probe(struct efx_nic *efx)
+{
+ struct efx_mcdi_phy_data *phy_data;
+ u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
+ u32 caps;
+ int rc;
+
+ /* Initialise and populate phy_data */
+ phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
+ if (phy_data == NULL)
+ return -ENOMEM;
+
+ rc = efx_mcdi_get_phy_cfg(efx, phy_data);
+ if (rc != 0)
+ goto fail;
+
+ /* Read initial link advertisement */
+ BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
+ outbuf, sizeof(outbuf), NULL);
+ if (rc)
+ goto fail;
+
+ /* Fill out nic state */
+ efx->phy_data = phy_data;
+ efx->phy_type = phy_data->type;
+
+ efx->mdio_bus = phy_data->channel;
+ efx->mdio.prtad = phy_data->port;
+ efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
+ efx->mdio.mode_support = 0;
+ if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
+ efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
+ if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
+ efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
+
+ caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
+ if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
+ efx->link_advertising =
+ mcdi_to_ethtool_cap(phy_data->media, caps);
+ else
+ phy_data->forced_cap = caps;
+
+ /* Assert that we can map efx -> mcdi loopback modes */
+ BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
+ BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
+ BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
+ BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
+ BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
+ BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
+ BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
+ BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
+ BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
+ BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
+ BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
+ BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
+ BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
+ BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
+ BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
+ BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
+ BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
+ BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
+ BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
+ BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
+ BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
+ BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
+ BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
+ BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
+ BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
+ BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
+ BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS);
+
+ rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes);
+ if (rc != 0)
+ goto fail;
+ /* The MC indicates that LOOPBACK_NONE is a valid loopback mode,
+ * but by convention we don't */
+ efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
+
+ /* Set the initial link mode */
+ efx_mcdi_phy_decode_link(
+ efx, &efx->link_state,
+ MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
+ MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
+ MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
+
+ /* Default to Autonegotiated flow control if the PHY supports it */
+ efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
+ if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
+ efx->wanted_fc |= EFX_FC_AUTO;
+ efx_link_set_wanted_fc(efx, efx->wanted_fc);
+
+ return 0;
+
+fail:
+ kfree(phy_data);
+ return rc;
+}
+
+int efx_mcdi_phy_reconfigure(struct efx_nic *efx)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ u32 caps = (efx->link_advertising ?
+ ethtool_to_mcdi_cap(efx->link_advertising) :
+ phy_cfg->forced_cap);
+
+ return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
+ efx->loopback_mode, 0);
+}
+
+void efx_mcdi_phy_decode_link(struct efx_nic *efx,
+ struct efx_link_state *link_state,
+ u32 speed, u32 flags, u32 fcntl)
+{
+ switch (fcntl) {
+ case MC_CMD_FCNTL_AUTO:
+ WARN_ON(1); /* This is not a link mode */
+ link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX;
+ break;
+ case MC_CMD_FCNTL_BIDIR:
+ link_state->fc = EFX_FC_TX | EFX_FC_RX;
+ break;
+ case MC_CMD_FCNTL_RESPOND:
+ link_state->fc = EFX_FC_RX;
+ break;
+ default:
+ WARN_ON(1);
+ case MC_CMD_FCNTL_OFF:
+ link_state->fc = 0;
+ break;
+ }
+
+ link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_LINK_UP_LBN));
+ link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_FULL_DUPLEX_LBN));
+ link_state->speed = speed;
+}
+
+/* Verify that the forced flow control settings (!EFX_FC_AUTO) are
+ * supported by the link partner. Warn the user if this isn't the case
+ */
+void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ u32 rmtadv;
+
+ /* The link partner capabilities are only relevant if the
+ * link supports flow control autonegotiation */
+ if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
+ return;
+
+ /* If flow control autoneg is supported and enabled, then fine */
+ if (efx->wanted_fc & EFX_FC_AUTO)
+ return;
+
+ rmtadv = 0;
+ if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
+ rmtadv |= ADVERTISED_Pause;
+ if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
+ rmtadv |= ADVERTISED_Asym_Pause;
+
+ if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause)
+ netif_err(efx, link, efx->net_dev,
+ "warning: link partner doesn't support pause frames");
+}
+
+static bool efx_mcdi_phy_poll(struct efx_nic *efx)
+{
+ struct efx_link_state old_state = efx->link_state;
+ u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
+ int rc;
+
+ WARN_ON(!mutex_is_locked(&efx->mac_lock));
+
+ BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
+ outbuf, sizeof(outbuf), NULL);
+ if (rc) {
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+ efx->link_state.up = false;
+ } else {
+ efx_mcdi_phy_decode_link(
+ efx, &efx->link_state,
+ MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
+ MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
+ MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
+ }
+
+ return !efx_link_state_equal(&efx->link_state, &old_state);
+}
+
+static void efx_mcdi_phy_remove(struct efx_nic *efx)
+{
+ struct efx_mcdi_phy_data *phy_data = efx->phy_data;
+
+ efx->phy_data = NULL;
+ kfree(phy_data);
+}
+
+static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
+ int rc;
+
+ ecmd->supported =
+ mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap);
+ ecmd->advertising = efx->link_advertising;
+ ethtool_cmd_speed_set(ecmd, efx->link_state.speed);
+ ecmd->duplex = efx->link_state.fd;
+ ecmd->port = mcdi_to_ethtool_media(phy_cfg->media);
+ ecmd->phy_address = phy_cfg->port;
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg);
+ ecmd->mdio_support = (efx->mdio.mode_support &
+ (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
+
+ BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
+ outbuf, sizeof(outbuf), NULL);
+ if (rc) {
+ netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
+ __func__, rc);
+ return;
+ }
+ ecmd->lp_advertising =
+ mcdi_to_ethtool_cap(phy_cfg->media,
+ MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP));
+}
+
+static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ u32 caps;
+ int rc;
+
+ if (ecmd->autoneg) {
+ caps = (ethtool_to_mcdi_cap(ecmd->advertising) |
+ 1 << MC_CMD_PHY_CAP_AN_LBN);
+ } else if (ecmd->duplex) {
+ switch (ethtool_cmd_speed(ecmd)) {
+ case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break;
+ case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break;
+ case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break;
+ case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break;
+ default: return -EINVAL;
+ }
+ } else {
+ switch (ethtool_cmd_speed(ecmd)) {
+ case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break;
+ case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break;
+ case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break;
+ default: return -EINVAL;
+ }
+ }
+
+ rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
+ efx->loopback_mode, 0);
+ if (rc)
+ return rc;
+
+ if (ecmd->autoneg) {
+ efx_link_set_advertising(
+ efx, ecmd->advertising | ADVERTISED_Autoneg);
+ phy_cfg->forced_cap = 0;
+ } else {
+ efx_link_set_advertising(efx, 0);
+ phy_cfg->forced_cap = caps;
+ }
+ return 0;
+}
+
+static int efx_mcdi_phy_test_alive(struct efx_nic *efx)
+{
+ u8 outbuf[MC_CMD_GET_PHY_STATE_OUT_LEN];
+ size_t outlen;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ return rc;
+
+ if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN)
+ return -EIO;
+ if (MCDI_DWORD(outbuf, GET_PHY_STATE_STATE) != MC_CMD_PHY_STATE_OK)
+ return -EINVAL;
+
+ return 0;
+}
+
+static const char *const mcdi_sft9001_cable_diag_names[] = {
+ "cable.pairA.length",
+ "cable.pairB.length",
+ "cable.pairC.length",
+ "cable.pairD.length",
+ "cable.pairA.status",
+ "cable.pairB.status",
+ "cable.pairC.status",
+ "cable.pairD.status",
+};
+
+static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode,
+ int *results)
+{
+ unsigned int retry, i, count = 0;
+ size_t outlen;
+ u32 status;
+ u8 *buf, *ptr;
+ int rc;
+
+ buf = kzalloc(0x100, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
+ MCDI_SET_DWORD(buf, START_BIST_IN_TYPE, bist_mode);
+ rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, buf, MC_CMD_START_BIST_IN_LEN,
+ NULL, 0, NULL);
+ if (rc)
+ goto out;
+
+ /* Wait up to 10s for BIST to finish */
+ for (retry = 0; retry < 100; ++retry) {
+ BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0);
+ rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
+ buf, 0x100, &outlen);
+ if (rc)
+ goto out;
+
+ status = MCDI_DWORD(buf, POLL_BIST_OUT_RESULT);
+ if (status != MC_CMD_POLL_BIST_RUNNING)
+ goto finished;
+
+ msleep(100);
+ }
+
+ rc = -ETIMEDOUT;
+ goto out;
+
+finished:
+ results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1;
+
+ /* SFT9001 specific cable diagnostics output */
+ if (efx->phy_type == PHY_TYPE_SFT9001B &&
+ (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT ||
+ bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) {
+ ptr = MCDI_PTR(buf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A);
+ if (status == MC_CMD_POLL_BIST_PASSED &&
+ outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) {
+ for (i = 0; i < 8; i++) {
+ results[count + i] =
+ EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i],
+ EFX_DWORD_0);
+ }
+ }
+ count += 8;
+ }
+ rc = count;
+
+out:
+ kfree(buf);
+
+ return rc;
+}
+
+static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results,
+ unsigned flags)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+ u32 mode;
+ int rc;
+
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_BIST_LBN)) {
+ rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results);
+ if (rc < 0)
+ return rc;
+
+ results += rc;
+ }
+
+ /* If we support both LONG and SHORT, then run each in response to
+ * break or not. Otherwise, run the one we support */
+ mode = 0;
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_SHORT_LBN)) {
+ if ((flags & ETH_TEST_FL_OFFLINE) &&
+ (phy_cfg->flags &
+ (1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_LONG_LBN)))
+ mode = MC_CMD_PHY_BIST_CABLE_LONG;
+ else
+ mode = MC_CMD_PHY_BIST_CABLE_SHORT;
+ } else if (phy_cfg->flags &
+ (1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_LONG_LBN))
+ mode = MC_CMD_PHY_BIST_CABLE_LONG;
+
+ if (mode != 0) {
+ rc = efx_mcdi_bist(efx, mode, results);
+ if (rc < 0)
+ return rc;
+ results += rc;
+ }
+
+ return 0;
+}
+
+static const char *efx_mcdi_phy_test_name(struct efx_nic *efx,
+ unsigned int index)
+{
+ struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
+
+ if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_BIST_LBN)) {
+ if (index == 0)
+ return "bist";
+ --index;
+ }
+
+ if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_SHORT_LBN) |
+ (1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_LONG_LBN))) {
+ if (index == 0)
+ return "cable";
+ --index;
+
+ if (efx->phy_type == PHY_TYPE_SFT9001B) {
+ if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names))
+ return mcdi_sft9001_cable_diag_names[index];
+ index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names);
+ }
+ }
+
+ return NULL;
+}
+
+const struct efx_phy_operations efx_mcdi_phy_ops = {
+ .probe = efx_mcdi_phy_probe,
+ .init = efx_port_dummy_op_int,
+ .reconfigure = efx_mcdi_phy_reconfigure,
+ .poll = efx_mcdi_phy_poll,
+ .fini = efx_port_dummy_op_void,
+ .remove = efx_mcdi_phy_remove,
+ .get_settings = efx_mcdi_phy_get_settings,
+ .set_settings = efx_mcdi_phy_set_settings,
+ .test_alive = efx_mcdi_phy_test_alive,
+ .run_tests = efx_mcdi_phy_run_tests,
+ .test_name = efx_mcdi_phy_test_name,
+};
diff --git a/drivers/net/ethernet/sfc/mdio_10g.c b/drivers/net/ethernet/sfc/mdio_10g.c
new file mode 100644
index 000000000000..7ab385c8136d
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mdio_10g.c
@@ -0,0 +1,323 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2006-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+/*
+ * Useful functions for working with MDIO clause 45 PHYs
+ */
+#include <linux/types.h>
+#include <linux/ethtool.h>
+#include <linux/delay.h>
+#include "net_driver.h"
+#include "mdio_10g.h"
+#include "workarounds.h"
+
+unsigned efx_mdio_id_oui(u32 id)
+{
+ unsigned oui = 0;
+ int i;
+
+ /* The bits of the OUI are designated a..x, with a=0 and b variable.
+ * In the id register c is the MSB but the OUI is conventionally
+ * written as bytes h..a, p..i, x..q. Reorder the bits accordingly. */
+ for (i = 0; i < 22; ++i)
+ if (id & (1 << (i + 10)))
+ oui |= 1 << (i ^ 7);
+
+ return oui;
+}
+
+int efx_mdio_reset_mmd(struct efx_nic *port, int mmd,
+ int spins, int spintime)
+{
+ u32 ctrl;
+
+ /* Catch callers passing values in the wrong units (or just silly) */
+ EFX_BUG_ON_PARANOID(spins * spintime >= 5000);
+
+ efx_mdio_write(port, mmd, MDIO_CTRL1, MDIO_CTRL1_RESET);
+ /* Wait for the reset bit to clear. */
+ do {
+ msleep(spintime);
+ ctrl = efx_mdio_read(port, mmd, MDIO_CTRL1);
+ spins--;
+
+ } while (spins && (ctrl & MDIO_CTRL1_RESET));
+
+ return spins ? spins : -ETIMEDOUT;
+}
+
+static int efx_mdio_check_mmd(struct efx_nic *efx, int mmd)
+{
+ int status;
+
+ if (mmd != MDIO_MMD_AN) {
+ /* Read MMD STATUS2 to check it is responding. */
+ status = efx_mdio_read(efx, mmd, MDIO_STAT2);
+ if ((status & MDIO_STAT2_DEVPRST) != MDIO_STAT2_DEVPRST_VAL) {
+ netif_err(efx, hw, efx->net_dev,
+ "PHY MMD %d not responding.\n", mmd);
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
+/* This ought to be ridiculous overkill. We expect it to fail rarely */
+#define MDIO45_RESET_TIME 1000 /* ms */
+#define MDIO45_RESET_ITERS 100
+
+int efx_mdio_wait_reset_mmds(struct efx_nic *efx, unsigned int mmd_mask)
+{
+ const int spintime = MDIO45_RESET_TIME / MDIO45_RESET_ITERS;
+ int tries = MDIO45_RESET_ITERS;
+ int rc = 0;
+ int in_reset;
+
+ while (tries) {
+ int mask = mmd_mask;
+ int mmd = 0;
+ int stat;
+ in_reset = 0;
+ while (mask) {
+ if (mask & 1) {
+ stat = efx_mdio_read(efx, mmd, MDIO_CTRL1);
+ if (stat < 0) {
+ netif_err(efx, hw, efx->net_dev,
+ "failed to read status of"
+ " MMD %d\n", mmd);
+ return -EIO;
+ }
+ if (stat & MDIO_CTRL1_RESET)
+ in_reset |= (1 << mmd);
+ }
+ mask = mask >> 1;
+ mmd++;
+ }
+ if (!in_reset)
+ break;
+ tries--;
+ msleep(spintime);
+ }
+ if (in_reset != 0) {
+ netif_err(efx, hw, efx->net_dev,
+ "not all MMDs came out of reset in time."
+ " MMDs still in reset: %x\n", in_reset);
+ rc = -ETIMEDOUT;
+ }
+ return rc;
+}
+
+int efx_mdio_check_mmds(struct efx_nic *efx, unsigned int mmd_mask)
+{
+ int mmd = 0, probe_mmd, devs1, devs2;
+ u32 devices;
+
+ /* Historically we have probed the PHYXS to find out what devices are
+ * present,but that doesn't work so well if the PHYXS isn't expected
+ * to exist, if so just find the first item in the list supplied. */
+ probe_mmd = (mmd_mask & MDIO_DEVS_PHYXS) ? MDIO_MMD_PHYXS :
+ __ffs(mmd_mask);
+
+ /* Check all the expected MMDs are present */
+ devs1 = efx_mdio_read(efx, probe_mmd, MDIO_DEVS1);
+ devs2 = efx_mdio_read(efx, probe_mmd, MDIO_DEVS2);
+ if (devs1 < 0 || devs2 < 0) {
+ netif_err(efx, hw, efx->net_dev,
+ "failed to read devices present\n");
+ return -EIO;
+ }
+ devices = devs1 | (devs2 << 16);
+ if ((devices & mmd_mask) != mmd_mask) {
+ netif_err(efx, hw, efx->net_dev,
+ "required MMDs not present: got %x, wanted %x\n",
+ devices, mmd_mask);
+ return -ENODEV;
+ }
+ netif_vdbg(efx, hw, efx->net_dev, "Devices present: %x\n", devices);
+
+ /* Check all required MMDs are responding and happy. */
+ while (mmd_mask) {
+ if ((mmd_mask & 1) && efx_mdio_check_mmd(efx, mmd))
+ return -EIO;
+ mmd_mask = mmd_mask >> 1;
+ mmd++;
+ }
+
+ return 0;
+}
+
+bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
+{
+ /* If the port is in loopback, then we should only consider a subset
+ * of mmd's */
+ if (LOOPBACK_INTERNAL(efx))
+ return true;
+ else if (LOOPBACK_MASK(efx) & LOOPBACKS_WS)
+ return false;
+ else if (efx_phy_mode_disabled(efx->phy_mode))
+ return false;
+ else if (efx->loopback_mode == LOOPBACK_PHYXS)
+ mmd_mask &= ~(MDIO_DEVS_PHYXS |
+ MDIO_DEVS_PCS |
+ MDIO_DEVS_PMAPMD |
+ MDIO_DEVS_AN);
+ else if (efx->loopback_mode == LOOPBACK_PCS)
+ mmd_mask &= ~(MDIO_DEVS_PCS |
+ MDIO_DEVS_PMAPMD |
+ MDIO_DEVS_AN);
+ else if (efx->loopback_mode == LOOPBACK_PMAPMD)
+ mmd_mask &= ~(MDIO_DEVS_PMAPMD |
+ MDIO_DEVS_AN);
+
+ return mdio45_links_ok(&efx->mdio, mmd_mask);
+}
+
+void efx_mdio_transmit_disable(struct efx_nic *efx)
+{
+ efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD,
+ MDIO_PMA_TXDIS, MDIO_PMD_TXDIS_GLOBAL,
+ efx->phy_mode & PHY_MODE_TX_DISABLED);
+}
+
+void efx_mdio_phy_reconfigure(struct efx_nic *efx)
+{
+ efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD,
+ MDIO_CTRL1, MDIO_PMA_CTRL1_LOOPBACK,
+ efx->loopback_mode == LOOPBACK_PMAPMD);
+ efx_mdio_set_flag(efx, MDIO_MMD_PCS,
+ MDIO_CTRL1, MDIO_PCS_CTRL1_LOOPBACK,
+ efx->loopback_mode == LOOPBACK_PCS);
+ efx_mdio_set_flag(efx, MDIO_MMD_PHYXS,
+ MDIO_CTRL1, MDIO_PHYXS_CTRL1_LOOPBACK,
+ efx->loopback_mode == LOOPBACK_PHYXS_WS);
+}
+
+static void efx_mdio_set_mmd_lpower(struct efx_nic *efx,
+ int lpower, int mmd)
+{
+ int stat = efx_mdio_read(efx, mmd, MDIO_STAT1);
+
+ netif_vdbg(efx, drv, efx->net_dev, "Setting low power mode for MMD %d to %d\n",
+ mmd, lpower);
+
+ if (stat & MDIO_STAT1_LPOWERABLE) {
+ efx_mdio_set_flag(efx, mmd, MDIO_CTRL1,
+ MDIO_CTRL1_LPOWER, lpower);
+ }
+}
+
+void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
+ int low_power, unsigned int mmd_mask)
+{
+ int mmd = 0;
+ mmd_mask &= ~MDIO_DEVS_AN;
+ while (mmd_mask) {
+ if (mmd_mask & 1)
+ efx_mdio_set_mmd_lpower(efx, low_power, mmd);
+ mmd_mask = (mmd_mask >> 1);
+ mmd++;
+ }
+}
+
+/**
+ * efx_mdio_set_settings - Set (some of) the PHY settings over MDIO.
+ * @efx: Efx NIC
+ * @ecmd: New settings
+ */
+int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+{
+ struct ethtool_cmd prev = { .cmd = ETHTOOL_GSET };
+
+ efx->phy_op->get_settings(efx, &prev);
+
+ if (ecmd->advertising == prev.advertising &&
+ ethtool_cmd_speed(ecmd) == ethtool_cmd_speed(&prev) &&
+ ecmd->duplex == prev.duplex &&
+ ecmd->port == prev.port &&
+ ecmd->autoneg == prev.autoneg)
+ return 0;
+
+ /* We can only change these settings for -T PHYs */
+ if (prev.port != PORT_TP || ecmd->port != PORT_TP)
+ return -EINVAL;
+
+ /* Check that PHY supports these settings */
+ if (!ecmd->autoneg ||
+ (ecmd->advertising | SUPPORTED_Autoneg) & ~prev.supported)
+ return -EINVAL;
+
+ efx_link_set_advertising(efx, ecmd->advertising | ADVERTISED_Autoneg);
+ efx_mdio_an_reconfigure(efx);
+ return 0;
+}
+
+/**
+ * efx_mdio_an_reconfigure - Push advertising flags and restart autonegotiation
+ * @efx: Efx NIC
+ */
+void efx_mdio_an_reconfigure(struct efx_nic *efx)
+{
+ int reg;
+
+ WARN_ON(!(efx->mdio.mmds & MDIO_DEVS_AN));
+
+ /* Set up the base page */
+ reg = ADVERTISE_CSMA | ADVERTISE_RESV;
+ if (efx->link_advertising & ADVERTISED_Pause)
+ reg |= ADVERTISE_PAUSE_CAP;
+ if (efx->link_advertising & ADVERTISED_Asym_Pause)
+ reg |= ADVERTISE_PAUSE_ASYM;
+ efx_mdio_write(efx, MDIO_MMD_AN, MDIO_AN_ADVERTISE, reg);
+
+ /* Set up the (extended) next page */
+ efx->phy_op->set_npage_adv(efx, efx->link_advertising);
+
+ /* Enable and restart AN */
+ reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_CTRL1);
+ reg |= MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART | MDIO_AN_CTRL1_XNP;
+ efx_mdio_write(efx, MDIO_MMD_AN, MDIO_CTRL1, reg);
+}
+
+u8 efx_mdio_get_pause(struct efx_nic *efx)
+{
+ BUILD_BUG_ON(EFX_FC_AUTO & (EFX_FC_RX | EFX_FC_TX));
+
+ if (!(efx->wanted_fc & EFX_FC_AUTO))
+ return efx->wanted_fc;
+
+ WARN_ON(!(efx->mdio.mmds & MDIO_DEVS_AN));
+
+ return mii_resolve_flowctrl_fdx(
+ mii_advertise_flowctrl(efx->wanted_fc),
+ efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_LPA));
+}
+
+int efx_mdio_test_alive(struct efx_nic *efx)
+{
+ int rc;
+ int devad = __ffs(efx->mdio.mmds);
+ u16 physid1, physid2;
+
+ mutex_lock(&efx->mac_lock);
+
+ physid1 = efx_mdio_read(efx, devad, MDIO_DEVID1);
+ physid2 = efx_mdio_read(efx, devad, MDIO_DEVID2);
+
+ if ((physid1 == 0x0000) || (physid1 == 0xffff) ||
+ (physid2 == 0x0000) || (physid2 == 0xffff)) {
+ netif_err(efx, hw, efx->net_dev,
+ "no MDIO PHY present with ID %d\n", efx->mdio.prtad);
+ rc = -EINVAL;
+ } else {
+ rc = efx_mdio_check_mmds(efx, efx->mdio.mmds);
+ }
+
+ mutex_unlock(&efx->mac_lock);
+ return rc;
+}
diff --git a/drivers/net/ethernet/sfc/mdio_10g.h b/drivers/net/ethernet/sfc/mdio_10g.h
new file mode 100644
index 000000000000..a97dbbd2de99
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mdio_10g.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2006-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_MDIO_10G_H
+#define EFX_MDIO_10G_H
+
+#include <linux/mdio.h>
+
+/*
+ * Helper functions for doing 10G MDIO as specified in IEEE 802.3 clause 45.
+ */
+
+#include "efx.h"
+
+static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; }
+static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
+extern unsigned efx_mdio_id_oui(u32 id);
+
+static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr)
+{
+ return efx->mdio.mdio_read(efx->net_dev, efx->mdio.prtad, devad, addr);
+}
+
+static inline void
+efx_mdio_write(struct efx_nic *efx, int devad, int addr, int value)
+{
+ efx->mdio.mdio_write(efx->net_dev, efx->mdio.prtad, devad, addr, value);
+}
+
+static inline u32 efx_mdio_read_id(struct efx_nic *efx, int mmd)
+{
+ u16 id_low = efx_mdio_read(efx, mmd, MDIO_DEVID2);
+ u16 id_hi = efx_mdio_read(efx, mmd, MDIO_DEVID1);
+ return (id_hi << 16) | (id_low);
+}
+
+static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx)
+{
+ int i, lane_status;
+ bool sync;
+
+ for (i = 0; i < 2; ++i)
+ lane_status = efx_mdio_read(efx, MDIO_MMD_PHYXS,
+ MDIO_PHYXS_LNSTAT);
+
+ sync = !!(lane_status & MDIO_PHYXS_LNSTAT_ALIGN);
+ if (!sync)
+ netif_dbg(efx, hw, efx->net_dev, "XGXS lane status: %x\n",
+ lane_status);
+ return sync;
+}
+
+extern const char *efx_mdio_mmd_name(int mmd);
+
+/*
+ * Reset a specific MMD and wait for reset to clear.
+ * Return number of spins left (>0) on success, -%ETIMEDOUT on failure.
+ *
+ * This function will sleep
+ */
+extern int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd,
+ int spins, int spintime);
+
+/* As efx_mdio_check_mmd but for multiple MMDs */
+int efx_mdio_check_mmds(struct efx_nic *efx, unsigned int mmd_mask);
+
+/* Check the link status of specified mmds in bit mask */
+extern bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
+
+/* Generic transmit disable support though PMAPMD */
+extern void efx_mdio_transmit_disable(struct efx_nic *efx);
+
+/* Generic part of reconfigure: set/clear loopback bits */
+extern void efx_mdio_phy_reconfigure(struct efx_nic *efx);
+
+/* Set the power state of the specified MMDs */
+extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
+ int low_power, unsigned int mmd_mask);
+
+/* Set (some of) the PHY settings over MDIO */
+extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
+
+/* Push advertising flags and restart autonegotiation */
+extern void efx_mdio_an_reconfigure(struct efx_nic *efx);
+
+/* Get pause parameters from AN if available (otherwise return
+ * requested pause parameters)
+ */
+u8 efx_mdio_get_pause(struct efx_nic *efx);
+
+/* Wait for specified MMDs to exit reset within a timeout */
+extern int efx_mdio_wait_reset_mmds(struct efx_nic *efx,
+ unsigned int mmd_mask);
+
+/* Set or clear flag, debouncing */
+static inline void
+efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr,
+ int mask, bool state)
+{
+ mdio_set_flag(&efx->mdio, efx->mdio.prtad, devad, addr, mask, state);
+}
+
+/* Liveness self-test for MDIO PHYs */
+extern int efx_mdio_test_alive(struct efx_nic *efx);
+
+#endif /* EFX_MDIO_10G_H */
diff --git a/drivers/net/ethernet/sfc/mtd.c b/drivers/net/ethernet/sfc/mtd.c
new file mode 100644
index 000000000000..b6304486f244
--- /dev/null
+++ b/drivers/net/ethernet/sfc/mtd.c
@@ -0,0 +1,693 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/rtnetlink.h>
+
+#include "net_driver.h"
+#include "spi.h"
+#include "efx.h"
+#include "nic.h"
+#include "mcdi.h"
+#include "mcdi_pcol.h"
+
+#define EFX_SPI_VERIFY_BUF_LEN 16
+
+struct efx_mtd_partition {
+ struct mtd_info mtd;
+ union {
+ struct {
+ bool updating;
+ u8 nvram_type;
+ u16 fw_subtype;
+ } mcdi;
+ size_t offset;
+ };
+ const char *type_name;
+ char name[IFNAMSIZ + 20];
+};
+
+struct efx_mtd_ops {
+ int (*read)(struct mtd_info *mtd, loff_t start, size_t len,
+ size_t *retlen, u8 *buffer);
+ int (*erase)(struct mtd_info *mtd, loff_t start, size_t len);
+ int (*write)(struct mtd_info *mtd, loff_t start, size_t len,
+ size_t *retlen, const u8 *buffer);
+ int (*sync)(struct mtd_info *mtd);
+};
+
+struct efx_mtd {
+ struct list_head node;
+ struct efx_nic *efx;
+ const struct efx_spi_device *spi;
+ const char *name;
+ const struct efx_mtd_ops *ops;
+ size_t n_parts;
+ struct efx_mtd_partition part[0];
+};
+
+#define efx_for_each_partition(part, efx_mtd) \
+ for ((part) = &(efx_mtd)->part[0]; \
+ (part) != &(efx_mtd)->part[(efx_mtd)->n_parts]; \
+ (part)++)
+
+#define to_efx_mtd_partition(mtd) \
+ container_of(mtd, struct efx_mtd_partition, mtd)
+
+static int falcon_mtd_probe(struct efx_nic *efx);
+static int siena_mtd_probe(struct efx_nic *efx);
+
+/* SPI utilities */
+
+static int
+efx_spi_slow_wait(struct efx_mtd_partition *part, bool uninterruptible)
+{
+ struct efx_mtd *efx_mtd = part->mtd.priv;
+ const struct efx_spi_device *spi = efx_mtd->spi;
+ struct efx_nic *efx = efx_mtd->efx;
+ u8 status;
+ int rc, i;
+
+ /* Wait up to 4s for flash/EEPROM to finish a slow operation. */
+ for (i = 0; i < 40; i++) {
+ __set_current_state(uninterruptible ?
+ TASK_UNINTERRUPTIBLE : TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ / 10);
+ rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
+ &status, sizeof(status));
+ if (rc)
+ return rc;
+ if (!(status & SPI_STATUS_NRDY))
+ return 0;
+ if (signal_pending(current))
+ return -EINTR;
+ }
+ pr_err("%s: timed out waiting for %s\n", part->name, efx_mtd->name);
+ return -ETIMEDOUT;
+}
+
+static int
+efx_spi_unlock(struct efx_nic *efx, const struct efx_spi_device *spi)
+{
+ const u8 unlock_mask = (SPI_STATUS_BP2 | SPI_STATUS_BP1 |
+ SPI_STATUS_BP0);
+ u8 status;
+ int rc;
+
+ rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
+ &status, sizeof(status));
+ if (rc)
+ return rc;
+
+ if (!(status & unlock_mask))
+ return 0; /* already unlocked */
+
+ rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
+ if (rc)
+ return rc;
+ rc = falcon_spi_cmd(efx, spi, SPI_SST_EWSR, -1, NULL, NULL, 0);
+ if (rc)
+ return rc;
+
+ status &= ~unlock_mask;
+ rc = falcon_spi_cmd(efx, spi, SPI_WRSR, -1, &status,
+ NULL, sizeof(status));
+ if (rc)
+ return rc;
+ rc = falcon_spi_wait_write(efx, spi);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+static int
+efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
+{
+ struct efx_mtd *efx_mtd = part->mtd.priv;
+ const struct efx_spi_device *spi = efx_mtd->spi;
+ struct efx_nic *efx = efx_mtd->efx;
+ unsigned pos, block_len;
+ u8 empty[EFX_SPI_VERIFY_BUF_LEN];
+ u8 buffer[EFX_SPI_VERIFY_BUF_LEN];
+ int rc;
+
+ if (len != spi->erase_size)
+ return -EINVAL;
+
+ if (spi->erase_command == 0)
+ return -EOPNOTSUPP;
+
+ rc = efx_spi_unlock(efx, spi);
+ if (rc)
+ return rc;
+ rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
+ if (rc)
+ return rc;
+ rc = falcon_spi_cmd(efx, spi, spi->erase_command, start, NULL,
+ NULL, 0);
+ if (rc)
+ return rc;
+ rc = efx_spi_slow_wait(part, false);
+
+ /* Verify the entire region has been wiped */
+ memset(empty, 0xff, sizeof(empty));
+ for (pos = 0; pos < len; pos += block_len) {
+ block_len = min(len - pos, sizeof(buffer));
+ rc = falcon_spi_read(efx, spi, start + pos, block_len,
+ NULL, buffer);
+ if (rc)
+ return rc;
+ if (memcmp(empty, buffer, block_len))
+ return -EIO;
+
+ /* Avoid locking up the system */
+ cond_resched();
+ if (signal_pending(current))
+ return -EINTR;
+ }
+
+ return rc;
+}
+
+/* MTD interface */
+
+static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
+{
+ struct efx_mtd *efx_mtd = mtd->priv;
+ int rc;
+
+ rc = efx_mtd->ops->erase(mtd, erase->addr, erase->len);
+ if (rc == 0) {
+ erase->state = MTD_ERASE_DONE;
+ } else {
+ erase->state = MTD_ERASE_FAILED;
+ erase->fail_addr = 0xffffffff;
+ }
+ mtd_erase_callback(erase);
+ return rc;
+}
+
+static void efx_mtd_sync(struct mtd_info *mtd)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ int rc;
+
+ rc = efx_mtd->ops->sync(mtd);
+ if (rc)
+ pr_err("%s: %s sync failed (%d)\n",
+ part->name, efx_mtd->name, rc);
+}
+
+static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
+{
+ int rc;
+
+ for (;;) {
+ rc = mtd_device_unregister(&part->mtd);
+ if (rc != -EBUSY)
+ break;
+ ssleep(1);
+ }
+ WARN_ON(rc);
+}
+
+static void efx_mtd_remove_device(struct efx_mtd *efx_mtd)
+{
+ struct efx_mtd_partition *part;
+
+ efx_for_each_partition(part, efx_mtd)
+ efx_mtd_remove_partition(part);
+ list_del(&efx_mtd->node);
+ kfree(efx_mtd);
+}
+
+static void efx_mtd_rename_device(struct efx_mtd *efx_mtd)
+{
+ struct efx_mtd_partition *part;
+
+ efx_for_each_partition(part, efx_mtd)
+ if (efx_nic_rev(efx_mtd->efx) >= EFX_REV_SIENA_A0)
+ snprintf(part->name, sizeof(part->name),
+ "%s %s:%02x", efx_mtd->efx->name,
+ part->type_name, part->mcdi.fw_subtype);
+ else
+ snprintf(part->name, sizeof(part->name),
+ "%s %s", efx_mtd->efx->name,
+ part->type_name);
+}
+
+static int efx_mtd_probe_device(struct efx_nic *efx, struct efx_mtd *efx_mtd)
+{
+ struct efx_mtd_partition *part;
+
+ efx_mtd->efx = efx;
+
+ efx_mtd_rename_device(efx_mtd);
+
+ efx_for_each_partition(part, efx_mtd) {
+ part->mtd.writesize = 1;
+
+ part->mtd.owner = THIS_MODULE;
+ part->mtd.priv = efx_mtd;
+ part->mtd.name = part->name;
+ part->mtd.erase = efx_mtd_erase;
+ part->mtd.read = efx_mtd->ops->read;
+ part->mtd.write = efx_mtd->ops->write;
+ part->mtd.sync = efx_mtd_sync;
+
+ if (mtd_device_register(&part->mtd, NULL, 0))
+ goto fail;
+ }
+
+ list_add(&efx_mtd->node, &efx->mtd_list);
+ return 0;
+
+fail:
+ while (part != &efx_mtd->part[0]) {
+ --part;
+ efx_mtd_remove_partition(part);
+ }
+ /* mtd_device_register() returns 1 if the MTD table is full */
+ return -ENOMEM;
+}
+
+void efx_mtd_remove(struct efx_nic *efx)
+{
+ struct efx_mtd *efx_mtd, *next;
+
+ WARN_ON(efx_dev_registered(efx));
+
+ list_for_each_entry_safe(efx_mtd, next, &efx->mtd_list, node)
+ efx_mtd_remove_device(efx_mtd);
+}
+
+void efx_mtd_rename(struct efx_nic *efx)
+{
+ struct efx_mtd *efx_mtd;
+
+ ASSERT_RTNL();
+
+ list_for_each_entry(efx_mtd, &efx->mtd_list, node)
+ efx_mtd_rename_device(efx_mtd);
+}
+
+int efx_mtd_probe(struct efx_nic *efx)
+{
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ return siena_mtd_probe(efx);
+ else
+ return falcon_mtd_probe(efx);
+}
+
+/* Implementation of MTD operations for Falcon */
+
+static int falcon_mtd_read(struct mtd_info *mtd, loff_t start,
+ size_t len, size_t *retlen, u8 *buffer)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ const struct efx_spi_device *spi = efx_mtd->spi;
+ struct efx_nic *efx = efx_mtd->efx;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ rc = mutex_lock_interruptible(&nic_data->spi_lock);
+ if (rc)
+ return rc;
+ rc = falcon_spi_read(efx, spi, part->offset + start, len,
+ retlen, buffer);
+ mutex_unlock(&nic_data->spi_lock);
+ return rc;
+}
+
+static int falcon_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ rc = mutex_lock_interruptible(&nic_data->spi_lock);
+ if (rc)
+ return rc;
+ rc = efx_spi_erase(part, part->offset + start, len);
+ mutex_unlock(&nic_data->spi_lock);
+ return rc;
+}
+
+static int falcon_mtd_write(struct mtd_info *mtd, loff_t start,
+ size_t len, size_t *retlen, const u8 *buffer)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ const struct efx_spi_device *spi = efx_mtd->spi;
+ struct efx_nic *efx = efx_mtd->efx;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ rc = mutex_lock_interruptible(&nic_data->spi_lock);
+ if (rc)
+ return rc;
+ rc = falcon_spi_write(efx, spi, part->offset + start, len,
+ retlen, buffer);
+ mutex_unlock(&nic_data->spi_lock);
+ return rc;
+}
+
+static int falcon_mtd_sync(struct mtd_info *mtd)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ int rc;
+
+ mutex_lock(&nic_data->spi_lock);
+ rc = efx_spi_slow_wait(part, true);
+ mutex_unlock(&nic_data->spi_lock);
+ return rc;
+}
+
+static struct efx_mtd_ops falcon_mtd_ops = {
+ .read = falcon_mtd_read,
+ .erase = falcon_mtd_erase,
+ .write = falcon_mtd_write,
+ .sync = falcon_mtd_sync,
+};
+
+static int falcon_mtd_probe(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ struct efx_spi_device *spi;
+ struct efx_mtd *efx_mtd;
+ int rc = -ENODEV;
+
+ ASSERT_RTNL();
+
+ spi = &nic_data->spi_flash;
+ if (efx_spi_present(spi) && spi->size > FALCON_FLASH_BOOTCODE_START) {
+ efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
+ GFP_KERNEL);
+ if (!efx_mtd)
+ return -ENOMEM;
+
+ efx_mtd->spi = spi;
+ efx_mtd->name = "flash";
+ efx_mtd->ops = &falcon_mtd_ops;
+
+ efx_mtd->n_parts = 1;
+ efx_mtd->part[0].mtd.type = MTD_NORFLASH;
+ efx_mtd->part[0].mtd.flags = MTD_CAP_NORFLASH;
+ efx_mtd->part[0].mtd.size = spi->size - FALCON_FLASH_BOOTCODE_START;
+ efx_mtd->part[0].mtd.erasesize = spi->erase_size;
+ efx_mtd->part[0].offset = FALCON_FLASH_BOOTCODE_START;
+ efx_mtd->part[0].type_name = "sfc_flash_bootrom";
+
+ rc = efx_mtd_probe_device(efx, efx_mtd);
+ if (rc) {
+ kfree(efx_mtd);
+ return rc;
+ }
+ }
+
+ spi = &nic_data->spi_eeprom;
+ if (efx_spi_present(spi) && spi->size > EFX_EEPROM_BOOTCONFIG_START) {
+ efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
+ GFP_KERNEL);
+ if (!efx_mtd)
+ return -ENOMEM;
+
+ efx_mtd->spi = spi;
+ efx_mtd->name = "EEPROM";
+ efx_mtd->ops = &falcon_mtd_ops;
+
+ efx_mtd->n_parts = 1;
+ efx_mtd->part[0].mtd.type = MTD_RAM;
+ efx_mtd->part[0].mtd.flags = MTD_CAP_RAM;
+ efx_mtd->part[0].mtd.size =
+ min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
+ EFX_EEPROM_BOOTCONFIG_START;
+ efx_mtd->part[0].mtd.erasesize = spi->erase_size;
+ efx_mtd->part[0].offset = EFX_EEPROM_BOOTCONFIG_START;
+ efx_mtd->part[0].type_name = "sfc_bootconfig";
+
+ rc = efx_mtd_probe_device(efx, efx_mtd);
+ if (rc) {
+ kfree(efx_mtd);
+ return rc;
+ }
+ }
+
+ return rc;
+}
+
+/* Implementation of MTD operations for Siena */
+
+static int siena_mtd_read(struct mtd_info *mtd, loff_t start,
+ size_t len, size_t *retlen, u8 *buffer)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ loff_t offset = start;
+ loff_t end = min_t(loff_t, start + len, mtd->size);
+ size_t chunk;
+ int rc = 0;
+
+ while (offset < end) {
+ chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
+ rc = efx_mcdi_nvram_read(efx, part->mcdi.nvram_type, offset,
+ buffer, chunk);
+ if (rc)
+ goto out;
+ offset += chunk;
+ buffer += chunk;
+ }
+out:
+ *retlen = offset - start;
+ return rc;
+}
+
+static int siena_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ loff_t offset = start & ~((loff_t)(mtd->erasesize - 1));
+ loff_t end = min_t(loff_t, start + len, mtd->size);
+ size_t chunk = part->mtd.erasesize;
+ int rc = 0;
+
+ if (!part->mcdi.updating) {
+ rc = efx_mcdi_nvram_update_start(efx, part->mcdi.nvram_type);
+ if (rc)
+ goto out;
+ part->mcdi.updating = 1;
+ }
+
+ /* The MCDI interface can in fact do multiple erase blocks at once;
+ * but erasing may be slow, so we make multiple calls here to avoid
+ * tripping the MCDI RPC timeout. */
+ while (offset < end) {
+ rc = efx_mcdi_nvram_erase(efx, part->mcdi.nvram_type, offset,
+ chunk);
+ if (rc)
+ goto out;
+ offset += chunk;
+ }
+out:
+ return rc;
+}
+
+static int siena_mtd_write(struct mtd_info *mtd, loff_t start,
+ size_t len, size_t *retlen, const u8 *buffer)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ loff_t offset = start;
+ loff_t end = min_t(loff_t, start + len, mtd->size);
+ size_t chunk;
+ int rc = 0;
+
+ if (!part->mcdi.updating) {
+ rc = efx_mcdi_nvram_update_start(efx, part->mcdi.nvram_type);
+ if (rc)
+ goto out;
+ part->mcdi.updating = 1;
+ }
+
+ while (offset < end) {
+ chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX);
+ rc = efx_mcdi_nvram_write(efx, part->mcdi.nvram_type, offset,
+ buffer, chunk);
+ if (rc)
+ goto out;
+ offset += chunk;
+ buffer += chunk;
+ }
+out:
+ *retlen = offset - start;
+ return rc;
+}
+
+static int siena_mtd_sync(struct mtd_info *mtd)
+{
+ struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
+ struct efx_mtd *efx_mtd = mtd->priv;
+ struct efx_nic *efx = efx_mtd->efx;
+ int rc = 0;
+
+ if (part->mcdi.updating) {
+ part->mcdi.updating = 0;
+ rc = efx_mcdi_nvram_update_finish(efx, part->mcdi.nvram_type);
+ }
+
+ return rc;
+}
+
+static struct efx_mtd_ops siena_mtd_ops = {
+ .read = siena_mtd_read,
+ .erase = siena_mtd_erase,
+ .write = siena_mtd_write,
+ .sync = siena_mtd_sync,
+};
+
+struct siena_nvram_type_info {
+ int port;
+ const char *name;
+};
+
+static struct siena_nvram_type_info siena_nvram_types[] = {
+ [MC_CMD_NVRAM_TYPE_DISABLED_CALLISTO] = { 0, "sfc_dummy_phy" },
+ [MC_CMD_NVRAM_TYPE_MC_FW] = { 0, "sfc_mcfw" },
+ [MC_CMD_NVRAM_TYPE_MC_FW_BACKUP] = { 0, "sfc_mcfw_backup" },
+ [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0] = { 0, "sfc_static_cfg" },
+ [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1] = { 1, "sfc_static_cfg" },
+ [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0] = { 0, "sfc_dynamic_cfg" },
+ [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1] = { 1, "sfc_dynamic_cfg" },
+ [MC_CMD_NVRAM_TYPE_EXP_ROM] = { 0, "sfc_exp_rom" },
+ [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT0] = { 0, "sfc_exp_rom_cfg" },
+ [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1] = { 1, "sfc_exp_rom_cfg" },
+ [MC_CMD_NVRAM_TYPE_PHY_PORT0] = { 0, "sfc_phy_fw" },
+ [MC_CMD_NVRAM_TYPE_PHY_PORT1] = { 1, "sfc_phy_fw" },
+};
+
+static int siena_mtd_probe_partition(struct efx_nic *efx,
+ struct efx_mtd *efx_mtd,
+ unsigned int part_id,
+ unsigned int type)
+{
+ struct efx_mtd_partition *part = &efx_mtd->part[part_id];
+ struct siena_nvram_type_info *info;
+ size_t size, erase_size;
+ bool protected;
+ int rc;
+
+ if (type >= ARRAY_SIZE(siena_nvram_types))
+ return -ENODEV;
+
+ info = &siena_nvram_types[type];
+
+ if (info->port != efx_port_num(efx))
+ return -ENODEV;
+
+ rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
+ if (rc)
+ return rc;
+ if (protected)
+ return -ENODEV; /* hide it */
+
+ part->mcdi.nvram_type = type;
+ part->type_name = info->name;
+
+ part->mtd.type = MTD_NORFLASH;
+ part->mtd.flags = MTD_CAP_NORFLASH;
+ part->mtd.size = size;
+ part->mtd.erasesize = erase_size;
+
+ return 0;
+}
+
+static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
+ struct efx_mtd *efx_mtd)
+{
+ struct efx_mtd_partition *part;
+ uint16_t fw_subtype_list[MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN /
+ sizeof(uint16_t)];
+ int rc;
+
+ rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list);
+ if (rc)
+ return rc;
+
+ efx_for_each_partition(part, efx_mtd)
+ part->mcdi.fw_subtype = fw_subtype_list[part->mcdi.nvram_type];
+
+ return 0;
+}
+
+static int siena_mtd_probe(struct efx_nic *efx)
+{
+ struct efx_mtd *efx_mtd;
+ int rc = -ENODEV;
+ u32 nvram_types;
+ unsigned int type;
+
+ ASSERT_RTNL();
+
+ rc = efx_mcdi_nvram_types(efx, &nvram_types);
+ if (rc)
+ return rc;
+
+ efx_mtd = kzalloc(sizeof(*efx_mtd) +
+ hweight32(nvram_types) * sizeof(efx_mtd->part[0]),
+ GFP_KERNEL);
+ if (!efx_mtd)
+ return -ENOMEM;
+
+ efx_mtd->name = "Siena NVRAM manager";
+
+ efx_mtd->ops = &siena_mtd_ops;
+
+ type = 0;
+ efx_mtd->n_parts = 0;
+
+ while (nvram_types != 0) {
+ if (nvram_types & 1) {
+ rc = siena_mtd_probe_partition(efx, efx_mtd,
+ efx_mtd->n_parts, type);
+ if (rc == 0)
+ efx_mtd->n_parts++;
+ else if (rc != -ENODEV)
+ goto fail;
+ }
+ type++;
+ nvram_types >>= 1;
+ }
+
+ rc = siena_mtd_get_fw_subtypes(efx, efx_mtd);
+ if (rc)
+ goto fail;
+
+ rc = efx_mtd_probe_device(efx, efx_mtd);
+fail:
+ if (rc)
+ kfree(efx_mtd);
+ return rc;
+}
+
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
new file mode 100644
index 000000000000..b8e251a1ee48
--- /dev/null
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -0,0 +1,1060 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2005-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+/* Common definitions for all Efx net driver code */
+
+#ifndef EFX_NET_DRIVER_H
+#define EFX_NET_DRIVER_H
+
+#if defined(EFX_ENABLE_DEBUG) && !defined(DEBUG)
+#define DEBUG
+#endif
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/timer.h>
+#include <linux/mdio.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/highmem.h>
+#include <linux/workqueue.h>
+#include <linux/vmalloc.h>
+#include <linux/i2c.h>
+
+#include "enum.h"
+#include "bitfield.h"
+
+/**************************************************************************
+ *
+ * Build definitions
+ *
+ **************************************************************************/
+
+#define EFX_DRIVER_VERSION "3.1"
+
+#ifdef EFX_ENABLE_DEBUG
+#define EFX_BUG_ON_PARANOID(x) BUG_ON(x)
+#define EFX_WARN_ON_PARANOID(x) WARN_ON(x)
+#else
+#define EFX_BUG_ON_PARANOID(x) do {} while (0)
+#define EFX_WARN_ON_PARANOID(x) do {} while (0)
+#endif
+
+/**************************************************************************
+ *
+ * Efx data structures
+ *
+ **************************************************************************/
+
+#define EFX_MAX_CHANNELS 32
+#define EFX_MAX_RX_QUEUES EFX_MAX_CHANNELS
+
+/* Checksum generation is a per-queue option in hardware, so each
+ * queue visible to the networking core is backed by two hardware TX
+ * queues. */
+#define EFX_MAX_TX_TC 2
+#define EFX_MAX_CORE_TX_QUEUES (EFX_MAX_TX_TC * EFX_MAX_CHANNELS)
+#define EFX_TXQ_TYPE_OFFLOAD 1 /* flag */
+#define EFX_TXQ_TYPE_HIGHPRI 2 /* flag */
+#define EFX_TXQ_TYPES 4
+#define EFX_MAX_TX_QUEUES (EFX_TXQ_TYPES * EFX_MAX_CHANNELS)
+
+/**
+ * struct efx_special_buffer - An Efx special buffer
+ * @addr: CPU base address of the buffer
+ * @dma_addr: DMA base address of the buffer
+ * @len: Buffer length, in bytes
+ * @index: Buffer index within controller;s buffer table
+ * @entries: Number of buffer table entries
+ *
+ * Special buffers are used for the event queues and the TX and RX
+ * descriptor queues for each channel. They are *not* used for the
+ * actual transmit and receive buffers.
+ */
+struct efx_special_buffer {
+ void *addr;
+ dma_addr_t dma_addr;
+ unsigned int len;
+ int index;
+ int entries;
+};
+
+enum efx_flush_state {
+ FLUSH_NONE,
+ FLUSH_PENDING,
+ FLUSH_FAILED,
+ FLUSH_DONE,
+};
+
+/**
+ * struct efx_tx_buffer - An Efx TX buffer
+ * @skb: The associated socket buffer.
+ * Set only on the final fragment of a packet; %NULL for all other
+ * fragments. When this fragment completes, then we can free this
+ * skb.
+ * @tsoh: The associated TSO header structure, or %NULL if this
+ * buffer is not a TSO header.
+ * @dma_addr: DMA address of the fragment.
+ * @len: Length of this fragment.
+ * This field is zero when the queue slot is empty.
+ * @continuation: True if this fragment is not the end of a packet.
+ * @unmap_single: True if pci_unmap_single should be used.
+ * @unmap_len: Length of this fragment to unmap
+ */
+struct efx_tx_buffer {
+ const struct sk_buff *skb;
+ struct efx_tso_header *tsoh;
+ dma_addr_t dma_addr;
+ unsigned short len;
+ bool continuation;
+ bool unmap_single;
+ unsigned short unmap_len;
+};
+
+/**
+ * struct efx_tx_queue - An Efx TX queue
+ *
+ * This is a ring buffer of TX fragments.
+ * Since the TX completion path always executes on the same
+ * CPU and the xmit path can operate on different CPUs,
+ * performance is increased by ensuring that the completion
+ * path and the xmit path operate on different cache lines.
+ * This is particularly important if the xmit path is always
+ * executing on one CPU which is different from the completion
+ * path. There is also a cache line for members which are
+ * read but not written on the fast path.
+ *
+ * @efx: The associated Efx NIC
+ * @queue: DMA queue number
+ * @channel: The associated channel
+ * @core_txq: The networking core TX queue structure
+ * @buffer: The software buffer ring
+ * @txd: The hardware descriptor ring
+ * @ptr_mask: The size of the ring minus 1.
+ * @initialised: Has hardware queue been initialised?
+ * @flushed: Used when handling queue flushing
+ * @read_count: Current read pointer.
+ * This is the number of buffers that have been removed from both rings.
+ * @old_write_count: The value of @write_count when last checked.
+ * This is here for performance reasons. The xmit path will
+ * only get the up-to-date value of @write_count if this
+ * variable indicates that the queue is empty. This is to
+ * avoid cache-line ping-pong between the xmit path and the
+ * completion path.
+ * @insert_count: Current insert pointer
+ * This is the number of buffers that have been added to the
+ * software ring.
+ * @write_count: Current write pointer
+ * This is the number of buffers that have been added to the
+ * hardware ring.
+ * @old_read_count: The value of read_count when last checked.
+ * This is here for performance reasons. The xmit path will
+ * only get the up-to-date value of read_count if this
+ * variable indicates that the queue is full. This is to
+ * avoid cache-line ping-pong between the xmit path and the
+ * completion path.
+ * @tso_headers_free: A list of TSO headers allocated for this TX queue
+ * that are not in use, and so available for new TSO sends. The list
+ * is protected by the TX queue lock.
+ * @tso_bursts: Number of times TSO xmit invoked by kernel
+ * @tso_long_headers: Number of packets with headers too long for standard
+ * blocks
+ * @tso_packets: Number of packets via the TSO xmit path
+ * @pushes: Number of times the TX push feature has been used
+ * @empty_read_count: If the completion path has seen the queue as empty
+ * and the transmission path has not yet checked this, the value of
+ * @read_count bitwise-added to %EFX_EMPTY_COUNT_VALID; otherwise 0.
+ */
+struct efx_tx_queue {
+ /* Members which don't change on the fast path */
+ struct efx_nic *efx ____cacheline_aligned_in_smp;
+ unsigned queue;
+ struct efx_channel *channel;
+ struct netdev_queue *core_txq;
+ struct efx_tx_buffer *buffer;
+ struct efx_special_buffer txd;
+ unsigned int ptr_mask;
+ bool initialised;
+ enum efx_flush_state flushed;
+
+ /* Members used mainly on the completion path */
+ unsigned int read_count ____cacheline_aligned_in_smp;
+ unsigned int old_write_count;
+
+ /* Members used only on the xmit path */
+ unsigned int insert_count ____cacheline_aligned_in_smp;
+ unsigned int write_count;
+ unsigned int old_read_count;
+ struct efx_tso_header *tso_headers_free;
+ unsigned int tso_bursts;
+ unsigned int tso_long_headers;
+ unsigned int tso_packets;
+ unsigned int pushes;
+
+ /* Members shared between paths and sometimes updated */
+ unsigned int empty_read_count ____cacheline_aligned_in_smp;
+#define EFX_EMPTY_COUNT_VALID 0x80000000
+};
+
+/**
+ * struct efx_rx_buffer - An Efx RX data buffer
+ * @dma_addr: DMA base address of the buffer
+ * @skb: The associated socket buffer, if any.
+ * If both this and page are %NULL, the buffer slot is currently free.
+ * @page: The associated page buffer, if any.
+ * If both this and skb are %NULL, the buffer slot is currently free.
+ * @len: Buffer length, in bytes.
+ * @is_page: Indicates if @page is valid. If false, @skb is valid.
+ */
+struct efx_rx_buffer {
+ dma_addr_t dma_addr;
+ union {
+ struct sk_buff *skb;
+ struct page *page;
+ } u;
+ unsigned int len;
+ bool is_page;
+};
+
+/**
+ * struct efx_rx_page_state - Page-based rx buffer state
+ *
+ * Inserted at the start of every page allocated for receive buffers.
+ * Used to facilitate sharing dma mappings between recycled rx buffers
+ * and those passed up to the kernel.
+ *
+ * @refcnt: Number of struct efx_rx_buffer's referencing this page.
+ * When refcnt falls to zero, the page is unmapped for dma
+ * @dma_addr: The dma address of this page.
+ */
+struct efx_rx_page_state {
+ unsigned refcnt;
+ dma_addr_t dma_addr;
+
+ unsigned int __pad[0] ____cacheline_aligned;
+};
+
+/**
+ * struct efx_rx_queue - An Efx RX queue
+ * @efx: The associated Efx NIC
+ * @buffer: The software buffer ring
+ * @rxd: The hardware descriptor ring
+ * @ptr_mask: The size of the ring minus 1.
+ * @added_count: Number of buffers added to the receive queue.
+ * @notified_count: Number of buffers given to NIC (<= @added_count).
+ * @removed_count: Number of buffers removed from the receive queue.
+ * @max_fill: RX descriptor maximum fill level (<= ring size)
+ * @fast_fill_trigger: RX descriptor fill level that will trigger a fast fill
+ * (<= @max_fill)
+ * @fast_fill_limit: The level to which a fast fill will fill
+ * (@fast_fill_trigger <= @fast_fill_limit <= @max_fill)
+ * @min_fill: RX descriptor minimum non-zero fill level.
+ * This records the minimum fill level observed when a ring
+ * refill was triggered.
+ * @alloc_page_count: RX allocation strategy counter.
+ * @alloc_skb_count: RX allocation strategy counter.
+ * @slow_fill: Timer used to defer efx_nic_generate_fill_event().
+ * @flushed: Use when handling queue flushing
+ */
+struct efx_rx_queue {
+ struct efx_nic *efx;
+ struct efx_rx_buffer *buffer;
+ struct efx_special_buffer rxd;
+ unsigned int ptr_mask;
+
+ int added_count;
+ int notified_count;
+ int removed_count;
+ unsigned int max_fill;
+ unsigned int fast_fill_trigger;
+ unsigned int fast_fill_limit;
+ unsigned int min_fill;
+ unsigned int min_overfill;
+ unsigned int alloc_page_count;
+ unsigned int alloc_skb_count;
+ struct timer_list slow_fill;
+ unsigned int slow_fill_count;
+
+ enum efx_flush_state flushed;
+};
+
+/**
+ * struct efx_buffer - An Efx general-purpose buffer
+ * @addr: host base address of the buffer
+ * @dma_addr: DMA base address of the buffer
+ * @len: Buffer length, in bytes
+ *
+ * The NIC uses these buffers for its interrupt status registers and
+ * MAC stats dumps.
+ */
+struct efx_buffer {
+ void *addr;
+ dma_addr_t dma_addr;
+ unsigned int len;
+};
+
+
+enum efx_rx_alloc_method {
+ RX_ALLOC_METHOD_AUTO = 0,
+ RX_ALLOC_METHOD_SKB = 1,
+ RX_ALLOC_METHOD_PAGE = 2,
+};
+
+/**
+ * struct efx_channel - An Efx channel
+ *
+ * A channel comprises an event queue, at least one TX queue, at least
+ * one RX queue, and an associated tasklet for processing the event
+ * queue.
+ *
+ * @efx: Associated Efx NIC
+ * @channel: Channel instance number
+ * @enabled: Channel enabled indicator
+ * @irq: IRQ number (MSI and MSI-X only)
+ * @irq_moderation: IRQ moderation value (in hardware ticks)
+ * @napi_dev: Net device used with NAPI
+ * @napi_str: NAPI control structure
+ * @work_pending: Is work pending via NAPI?
+ * @eventq: Event queue buffer
+ * @eventq_mask: Event queue pointer mask
+ * @eventq_read_ptr: Event queue read pointer
+ * @last_eventq_read_ptr: Last event queue read pointer value.
+ * @irq_count: Number of IRQs since last adaptive moderation decision
+ * @irq_mod_score: IRQ moderation score
+ * @rx_alloc_level: Watermark based heuristic counter for pushing descriptors
+ * and diagnostic counters
+ * @rx_alloc_push_pages: RX allocation method currently in use for pushing
+ * descriptors
+ * @n_rx_tobe_disc: Count of RX_TOBE_DISC errors
+ * @n_rx_ip_hdr_chksum_err: Count of RX IP header checksum errors
+ * @n_rx_tcp_udp_chksum_err: Count of RX TCP and UDP checksum errors
+ * @n_rx_mcast_mismatch: Count of unmatched multicast frames
+ * @n_rx_frm_trunc: Count of RX_FRM_TRUNC errors
+ * @n_rx_overlength: Count of RX_OVERLENGTH errors
+ * @n_skbuff_leaks: Count of skbuffs leaked due to RX overrun
+ * @rx_queue: RX queue for this channel
+ * @tx_queue: TX queues for this channel
+ */
+struct efx_channel {
+ struct efx_nic *efx;
+ int channel;
+ bool enabled;
+ int irq;
+ unsigned int irq_moderation;
+ struct net_device *napi_dev;
+ struct napi_struct napi_str;
+ bool work_pending;
+ struct efx_special_buffer eventq;
+ unsigned int eventq_mask;
+ unsigned int eventq_read_ptr;
+ unsigned int last_eventq_read_ptr;
+
+ unsigned int irq_count;
+ unsigned int irq_mod_score;
+#ifdef CONFIG_RFS_ACCEL
+ unsigned int rfs_filters_added;
+#endif
+
+ int rx_alloc_level;
+ int rx_alloc_push_pages;
+
+ unsigned n_rx_tobe_disc;
+ unsigned n_rx_ip_hdr_chksum_err;
+ unsigned n_rx_tcp_udp_chksum_err;
+ unsigned n_rx_mcast_mismatch;
+ unsigned n_rx_frm_trunc;
+ unsigned n_rx_overlength;
+ unsigned n_skbuff_leaks;
+
+ /* Used to pipeline received packets in order to optimise memory
+ * access with prefetches.
+ */
+ struct efx_rx_buffer *rx_pkt;
+ bool rx_pkt_csummed;
+
+ struct efx_rx_queue rx_queue;
+ struct efx_tx_queue tx_queue[EFX_TXQ_TYPES];
+};
+
+enum efx_led_mode {
+ EFX_LED_OFF = 0,
+ EFX_LED_ON = 1,
+ EFX_LED_DEFAULT = 2
+};
+
+#define STRING_TABLE_LOOKUP(val, member) \
+ ((val) < member ## _max) ? member ## _names[val] : "(invalid)"
+
+extern const char *efx_loopback_mode_names[];
+extern const unsigned int efx_loopback_mode_max;
+#define LOOPBACK_MODE(efx) \
+ STRING_TABLE_LOOKUP((efx)->loopback_mode, efx_loopback_mode)
+
+extern const char *efx_reset_type_names[];
+extern const unsigned int efx_reset_type_max;
+#define RESET_TYPE(type) \
+ STRING_TABLE_LOOKUP(type, efx_reset_type)
+
+enum efx_int_mode {
+ /* Be careful if altering to correct macro below */
+ EFX_INT_MODE_MSIX = 0,
+ EFX_INT_MODE_MSI = 1,
+ EFX_INT_MODE_LEGACY = 2,
+ EFX_INT_MODE_MAX /* Insert any new items before this */
+};
+#define EFX_INT_MODE_USE_MSI(x) (((x)->interrupt_mode) <= EFX_INT_MODE_MSI)
+
+enum nic_state {
+ STATE_INIT = 0,
+ STATE_RUNNING = 1,
+ STATE_FINI = 2,
+ STATE_DISABLED = 3,
+ STATE_MAX,
+};
+
+/*
+ * Alignment of page-allocated RX buffers
+ *
+ * Controls the number of bytes inserted at the start of an RX buffer.
+ * This is the equivalent of NET_IP_ALIGN [which controls the alignment
+ * of the skb->head for hardware DMA].
+ */
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+#define EFX_PAGE_IP_ALIGN 0
+#else
+#define EFX_PAGE_IP_ALIGN NET_IP_ALIGN
+#endif
+
+/*
+ * Alignment of the skb->head which wraps a page-allocated RX buffer
+ *
+ * The skb allocated to wrap an rx_buffer can have this alignment. Since
+ * the data is memcpy'd from the rx_buf, it does not need to be equal to
+ * EFX_PAGE_IP_ALIGN.
+ */
+#define EFX_PAGE_SKB_ALIGN 2
+
+/* Forward declaration */
+struct efx_nic;
+
+/* Pseudo bit-mask flow control field */
+#define EFX_FC_RX FLOW_CTRL_RX
+#define EFX_FC_TX FLOW_CTRL_TX
+#define EFX_FC_AUTO 4
+
+/**
+ * struct efx_link_state - Current state of the link
+ * @up: Link is up
+ * @fd: Link is full-duplex
+ * @fc: Actual flow control flags
+ * @speed: Link speed (Mbps)
+ */
+struct efx_link_state {
+ bool up;
+ bool fd;
+ u8 fc;
+ unsigned int speed;
+};
+
+static inline bool efx_link_state_equal(const struct efx_link_state *left,
+ const struct efx_link_state *right)
+{
+ return left->up == right->up && left->fd == right->fd &&
+ left->fc == right->fc && left->speed == right->speed;
+}
+
+/**
+ * struct efx_mac_operations - Efx MAC operations table
+ * @reconfigure: Reconfigure MAC. Serialised by the mac_lock
+ * @update_stats: Update statistics
+ * @check_fault: Check fault state. True if fault present.
+ */
+struct efx_mac_operations {
+ int (*reconfigure) (struct efx_nic *efx);
+ void (*update_stats) (struct efx_nic *efx);
+ bool (*check_fault)(struct efx_nic *efx);
+};
+
+/**
+ * struct efx_phy_operations - Efx PHY operations table
+ * @probe: Probe PHY and initialise efx->mdio.mode_support, efx->mdio.mmds,
+ * efx->loopback_modes.
+ * @init: Initialise PHY
+ * @fini: Shut down PHY
+ * @reconfigure: Reconfigure PHY (e.g. for new link parameters)
+ * @poll: Update @link_state and report whether it changed.
+ * Serialised by the mac_lock.
+ * @get_settings: Get ethtool settings. Serialised by the mac_lock.
+ * @set_settings: Set ethtool settings. Serialised by the mac_lock.
+ * @set_npage_adv: Set abilities advertised in (Extended) Next Page
+ * (only needed where AN bit is set in mmds)
+ * @test_alive: Test that PHY is 'alive' (online)
+ * @test_name: Get the name of a PHY-specific test/result
+ * @run_tests: Run tests and record results as appropriate (offline).
+ * Flags are the ethtool tests flags.
+ */
+struct efx_phy_operations {
+ int (*probe) (struct efx_nic *efx);
+ int (*init) (struct efx_nic *efx);
+ void (*fini) (struct efx_nic *efx);
+ void (*remove) (struct efx_nic *efx);
+ int (*reconfigure) (struct efx_nic *efx);
+ bool (*poll) (struct efx_nic *efx);
+ void (*get_settings) (struct efx_nic *efx,
+ struct ethtool_cmd *ecmd);
+ int (*set_settings) (struct efx_nic *efx,
+ struct ethtool_cmd *ecmd);
+ void (*set_npage_adv) (struct efx_nic *efx, u32);
+ int (*test_alive) (struct efx_nic *efx);
+ const char *(*test_name) (struct efx_nic *efx, unsigned int index);
+ int (*run_tests) (struct efx_nic *efx, int *results, unsigned flags);
+};
+
+/**
+ * @enum efx_phy_mode - PHY operating mode flags
+ * @PHY_MODE_NORMAL: on and should pass traffic
+ * @PHY_MODE_TX_DISABLED: on with TX disabled
+ * @PHY_MODE_LOW_POWER: set to low power through MDIO
+ * @PHY_MODE_OFF: switched off through external control
+ * @PHY_MODE_SPECIAL: on but will not pass traffic
+ */
+enum efx_phy_mode {
+ PHY_MODE_NORMAL = 0,
+ PHY_MODE_TX_DISABLED = 1,
+ PHY_MODE_LOW_POWER = 2,
+ PHY_MODE_OFF = 4,
+ PHY_MODE_SPECIAL = 8,
+};
+
+static inline bool efx_phy_mode_disabled(enum efx_phy_mode mode)
+{
+ return !!(mode & ~PHY_MODE_TX_DISABLED);
+}
+
+/*
+ * Efx extended statistics
+ *
+ * Not all statistics are provided by all supported MACs. The purpose
+ * is this structure is to contain the raw statistics provided by each
+ * MAC.
+ */
+struct efx_mac_stats {
+ u64 tx_bytes;
+ u64 tx_good_bytes;
+ u64 tx_bad_bytes;
+ unsigned long tx_packets;
+ unsigned long tx_bad;
+ unsigned long tx_pause;
+ unsigned long tx_control;
+ unsigned long tx_unicast;
+ unsigned long tx_multicast;
+ unsigned long tx_broadcast;
+ unsigned long tx_lt64;
+ unsigned long tx_64;
+ unsigned long tx_65_to_127;
+ unsigned long tx_128_to_255;
+ unsigned long tx_256_to_511;
+ unsigned long tx_512_to_1023;
+ unsigned long tx_1024_to_15xx;
+ unsigned long tx_15xx_to_jumbo;
+ unsigned long tx_gtjumbo;
+ unsigned long tx_collision;
+ unsigned long tx_single_collision;
+ unsigned long tx_multiple_collision;
+ unsigned long tx_excessive_collision;
+ unsigned long tx_deferred;
+ unsigned long tx_late_collision;
+ unsigned long tx_excessive_deferred;
+ unsigned long tx_non_tcpudp;
+ unsigned long tx_mac_src_error;
+ unsigned long tx_ip_src_error;
+ u64 rx_bytes;
+ u64 rx_good_bytes;
+ u64 rx_bad_bytes;
+ unsigned long rx_packets;
+ unsigned long rx_good;
+ unsigned long rx_bad;
+ unsigned long rx_pause;
+ unsigned long rx_control;
+ unsigned long rx_unicast;
+ unsigned long rx_multicast;
+ unsigned long rx_broadcast;
+ unsigned long rx_lt64;
+ unsigned long rx_64;
+ unsigned long rx_65_to_127;
+ unsigned long rx_128_to_255;
+ unsigned long rx_256_to_511;
+ unsigned long rx_512_to_1023;
+ unsigned long rx_1024_to_15xx;
+ unsigned long rx_15xx_to_jumbo;
+ unsigned long rx_gtjumbo;
+ unsigned long rx_bad_lt64;
+ unsigned long rx_bad_64_to_15xx;
+ unsigned long rx_bad_15xx_to_jumbo;
+ unsigned long rx_bad_gtjumbo;
+ unsigned long rx_overflow;
+ unsigned long rx_missed;
+ unsigned long rx_false_carrier;
+ unsigned long rx_symbol_error;
+ unsigned long rx_align_error;
+ unsigned long rx_length_error;
+ unsigned long rx_internal_error;
+ unsigned long rx_good_lt64;
+};
+
+/* Number of bits used in a multicast filter hash address */
+#define EFX_MCAST_HASH_BITS 8
+
+/* Number of (single-bit) entries in a multicast filter hash */
+#define EFX_MCAST_HASH_ENTRIES (1 << EFX_MCAST_HASH_BITS)
+
+/* An Efx multicast filter hash */
+union efx_multicast_hash {
+ u8 byte[EFX_MCAST_HASH_ENTRIES / 8];
+ efx_oword_t oword[EFX_MCAST_HASH_ENTRIES / sizeof(efx_oword_t) / 8];
+};
+
+struct efx_filter_state;
+
+/**
+ * struct efx_nic - an Efx NIC
+ * @name: Device name (net device name or bus id before net device registered)
+ * @pci_dev: The PCI device
+ * @type: Controller type attributes
+ * @legacy_irq: IRQ number
+ * @legacy_irq_enabled: Are IRQs enabled on NIC (INT_EN_KER register)?
+ * @workqueue: Workqueue for port reconfigures and the HW monitor.
+ * Work items do not hold and must not acquire RTNL.
+ * @workqueue_name: Name of workqueue
+ * @reset_work: Scheduled reset workitem
+ * @membase_phys: Memory BAR value as physical address
+ * @membase: Memory BAR value
+ * @interrupt_mode: Interrupt mode
+ * @irq_rx_adaptive: Adaptive IRQ moderation enabled for RX event queues
+ * @irq_rx_moderation: IRQ moderation time for RX event queues
+ * @msg_enable: Log message enable flags
+ * @state: Device state flag. Serialised by the rtnl_lock.
+ * @reset_pending: Bitmask for pending resets
+ * @tx_queue: TX DMA queues
+ * @rx_queue: RX DMA queues
+ * @channel: Channels
+ * @channel_name: Names for channels and their IRQs
+ * @rxq_entries: Size of receive queues requested by user.
+ * @txq_entries: Size of transmit queues requested by user.
+ * @next_buffer_table: First available buffer table id
+ * @n_channels: Number of channels in use
+ * @n_rx_channels: Number of channels used for RX (= number of RX queues)
+ * @n_tx_channels: Number of channels used for TX
+ * @rx_buffer_len: RX buffer length
+ * @rx_buffer_order: Order (log2) of number of pages for each RX buffer
+ * @rx_hash_key: Toeplitz hash key for RSS
+ * @rx_indir_table: Indirection table for RSS
+ * @int_error_count: Number of internal errors seen recently
+ * @int_error_expire: Time at which error count will be expired
+ * @irq_status: Interrupt status buffer
+ * @irq_zero_count: Number of legacy IRQs seen with queue flags == 0
+ * @fatal_irq_level: IRQ level (bit number) used for serious errors
+ * @mtd_list: List of MTDs attached to the NIC
+ * @nic_data: Hardware dependent state
+ * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
+ * efx_monitor() and efx_reconfigure_port()
+ * @port_enabled: Port enabled indicator.
+ * Serialises efx_stop_all(), efx_start_all(), efx_monitor() and
+ * efx_mac_work() with kernel interfaces. Safe to read under any
+ * one of the rtnl_lock, mac_lock, or netif_tx_lock, but all three must
+ * be held to modify it.
+ * @port_initialized: Port initialized?
+ * @net_dev: Operating system network device. Consider holding the rtnl lock
+ * @stats_buffer: DMA buffer for statistics
+ * @mac_op: MAC interface
+ * @phy_type: PHY type
+ * @phy_op: PHY interface
+ * @phy_data: PHY private data (including PHY-specific stats)
+ * @mdio: PHY MDIO interface
+ * @mdio_bus: PHY MDIO bus ID (only used by Siena)
+ * @phy_mode: PHY operating mode. Serialised by @mac_lock.
+ * @link_advertising: Autonegotiation advertising flags
+ * @link_state: Current state of the link
+ * @n_link_state_changes: Number of times the link has changed state
+ * @promiscuous: Promiscuous flag. Protected by netif_tx_lock.
+ * @multicast_hash: Multicast hash table
+ * @wanted_fc: Wanted flow control flags
+ * @mac_work: Work item for changing MAC promiscuity and multicast hash
+ * @loopback_mode: Loopback status
+ * @loopback_modes: Supported loopback mode bitmask
+ * @loopback_selftest: Offline self-test private state
+ * @monitor_work: Hardware monitor workitem
+ * @biu_lock: BIU (bus interface unit) lock
+ * @last_irq_cpu: Last CPU to handle interrupt.
+ * This register is written with the SMP processor ID whenever an
+ * interrupt is handled. It is used by efx_nic_test_interrupt()
+ * to verify that an interrupt has occurred.
+ * @n_rx_nodesc_drop_cnt: RX no descriptor drop count
+ * @mac_stats: MAC statistics. These include all statistics the MACs
+ * can provide. Generic code converts these into a standard
+ * &struct net_device_stats.
+ * @stats_lock: Statistics update lock. Serialises statistics fetches
+ *
+ * This is stored in the private area of the &struct net_device.
+ */
+struct efx_nic {
+ /* The following fields should be written very rarely */
+
+ char name[IFNAMSIZ];
+ struct pci_dev *pci_dev;
+ const struct efx_nic_type *type;
+ int legacy_irq;
+ bool legacy_irq_enabled;
+ struct workqueue_struct *workqueue;
+ char workqueue_name[16];
+ struct work_struct reset_work;
+ resource_size_t membase_phys;
+ void __iomem *membase;
+
+ enum efx_int_mode interrupt_mode;
+ bool irq_rx_adaptive;
+ unsigned int irq_rx_moderation;
+ u32 msg_enable;
+
+ enum nic_state state;
+ unsigned long reset_pending;
+
+ struct efx_channel *channel[EFX_MAX_CHANNELS];
+ char channel_name[EFX_MAX_CHANNELS][IFNAMSIZ + 6];
+
+ unsigned rxq_entries;
+ unsigned txq_entries;
+ unsigned next_buffer_table;
+ unsigned n_channels;
+ unsigned n_rx_channels;
+ unsigned tx_channel_offset;
+ unsigned n_tx_channels;
+ unsigned int rx_buffer_len;
+ unsigned int rx_buffer_order;
+ u8 rx_hash_key[40];
+ u32 rx_indir_table[128];
+
+ unsigned int_error_count;
+ unsigned long int_error_expire;
+
+ struct efx_buffer irq_status;
+ unsigned irq_zero_count;
+ unsigned fatal_irq_level;
+
+#ifdef CONFIG_SFC_MTD
+ struct list_head mtd_list;
+#endif
+
+ void *nic_data;
+
+ struct mutex mac_lock;
+ struct work_struct mac_work;
+ bool port_enabled;
+
+ bool port_initialized;
+ struct net_device *net_dev;
+
+ struct efx_buffer stats_buffer;
+
+ const struct efx_mac_operations *mac_op;
+
+ unsigned int phy_type;
+ const struct efx_phy_operations *phy_op;
+ void *phy_data;
+ struct mdio_if_info mdio;
+ unsigned int mdio_bus;
+ enum efx_phy_mode phy_mode;
+
+ u32 link_advertising;
+ struct efx_link_state link_state;
+ unsigned int n_link_state_changes;
+
+ bool promiscuous;
+ union efx_multicast_hash multicast_hash;
+ u8 wanted_fc;
+
+ atomic_t rx_reset;
+ enum efx_loopback_mode loopback_mode;
+ u64 loopback_modes;
+
+ void *loopback_selftest;
+
+ struct efx_filter_state *filter_state;
+
+ /* The following fields may be written more often */
+
+ struct delayed_work monitor_work ____cacheline_aligned_in_smp;
+ spinlock_t biu_lock;
+ volatile signed int last_irq_cpu;
+ unsigned n_rx_nodesc_drop_cnt;
+ struct efx_mac_stats mac_stats;
+ spinlock_t stats_lock;
+};
+
+static inline int efx_dev_registered(struct efx_nic *efx)
+{
+ return efx->net_dev->reg_state == NETREG_REGISTERED;
+}
+
+/* Net device name, for inclusion in log messages if it has been registered.
+ * Use efx->name not efx->net_dev->name so that races with (un)registration
+ * are harmless.
+ */
+static inline const char *efx_dev_name(struct efx_nic *efx)
+{
+ return efx_dev_registered(efx) ? efx->name : "";
+}
+
+static inline unsigned int efx_port_num(struct efx_nic *efx)
+{
+ return efx->net_dev->dev_id;
+}
+
+/**
+ * struct efx_nic_type - Efx device type definition
+ * @probe: Probe the controller
+ * @remove: Free resources allocated by probe()
+ * @init: Initialise the controller
+ * @fini: Shut down the controller
+ * @monitor: Periodic function for polling link state and hardware monitor
+ * @map_reset_reason: Map ethtool reset reason to a reset method
+ * @map_reset_flags: Map ethtool reset flags to a reset method, if possible
+ * @reset: Reset the controller hardware and possibly the PHY. This will
+ * be called while the controller is uninitialised.
+ * @probe_port: Probe the MAC and PHY
+ * @remove_port: Free resources allocated by probe_port()
+ * @handle_global_event: Handle a "global" event (may be %NULL)
+ * @prepare_flush: Prepare the hardware for flushing the DMA queues
+ * @update_stats: Update statistics not provided by event handling
+ * @start_stats: Start the regular fetching of statistics
+ * @stop_stats: Stop the regular fetching of statistics
+ * @set_id_led: Set state of identifying LED or revert to automatic function
+ * @push_irq_moderation: Apply interrupt moderation value
+ * @push_multicast_hash: Apply multicast hash table
+ * @reconfigure_port: Push loopback/power/txdis changes to the MAC and PHY
+ * @get_wol: Get WoL configuration from driver state
+ * @set_wol: Push WoL configuration to the NIC
+ * @resume_wol: Synchronise WoL state between driver and MC (e.g. after resume)
+ * @test_registers: Test read/write functionality of control registers
+ * @test_nvram: Test validity of NVRAM contents
+ * @default_mac_ops: efx_mac_operations to set at startup
+ * @revision: Hardware architecture revision
+ * @mem_map_size: Memory BAR mapped size
+ * @txd_ptr_tbl_base: TX descriptor ring base address
+ * @rxd_ptr_tbl_base: RX descriptor ring base address
+ * @buf_tbl_base: Buffer table base address
+ * @evq_ptr_tbl_base: Event queue pointer table base address
+ * @evq_rptr_tbl_base: Event queue read-pointer table base address
+ * @max_dma_mask: Maximum possible DMA mask
+ * @rx_buffer_hash_size: Size of hash at start of RX buffer
+ * @rx_buffer_padding: Size of padding at end of RX buffer
+ * @max_interrupt_mode: Highest capability interrupt mode supported
+ * from &enum efx_init_mode.
+ * @phys_addr_channels: Number of channels with physically addressed
+ * descriptors
+ * @tx_dc_base: Base address in SRAM of TX queue descriptor caches
+ * @rx_dc_base: Base address in SRAM of RX queue descriptor caches
+ * @offload_features: net_device feature flags for protocol offload
+ * features implemented in hardware
+ */
+struct efx_nic_type {
+ int (*probe)(struct efx_nic *efx);
+ void (*remove)(struct efx_nic *efx);
+ int (*init)(struct efx_nic *efx);
+ void (*fini)(struct efx_nic *efx);
+ void (*monitor)(struct efx_nic *efx);
+ enum reset_type (*map_reset_reason)(enum reset_type reason);
+ int (*map_reset_flags)(u32 *flags);
+ int (*reset)(struct efx_nic *efx, enum reset_type method);
+ int (*probe_port)(struct efx_nic *efx);
+ void (*remove_port)(struct efx_nic *efx);
+ bool (*handle_global_event)(struct efx_channel *channel, efx_qword_t *);
+ void (*prepare_flush)(struct efx_nic *efx);
+ void (*update_stats)(struct efx_nic *efx);
+ void (*start_stats)(struct efx_nic *efx);
+ void (*stop_stats)(struct efx_nic *efx);
+ void (*set_id_led)(struct efx_nic *efx, enum efx_led_mode mode);
+ void (*push_irq_moderation)(struct efx_channel *channel);
+ void (*push_multicast_hash)(struct efx_nic *efx);
+ int (*reconfigure_port)(struct efx_nic *efx);
+ void (*get_wol)(struct efx_nic *efx, struct ethtool_wolinfo *wol);
+ int (*set_wol)(struct efx_nic *efx, u32 type);
+ void (*resume_wol)(struct efx_nic *efx);
+ int (*test_registers)(struct efx_nic *efx);
+ int (*test_nvram)(struct efx_nic *efx);
+ const struct efx_mac_operations *default_mac_ops;
+
+ int revision;
+ unsigned int mem_map_size;
+ unsigned int txd_ptr_tbl_base;
+ unsigned int rxd_ptr_tbl_base;
+ unsigned int buf_tbl_base;
+ unsigned int evq_ptr_tbl_base;
+ unsigned int evq_rptr_tbl_base;
+ u64 max_dma_mask;
+ unsigned int rx_buffer_hash_size;
+ unsigned int rx_buffer_padding;
+ unsigned int max_interrupt_mode;
+ unsigned int phys_addr_channels;
+ unsigned int tx_dc_base;
+ unsigned int rx_dc_base;
+ u32 offload_features;
+};
+
+/**************************************************************************
+ *
+ * Prototypes and inline functions
+ *
+ *************************************************************************/
+
+static inline struct efx_channel *
+efx_get_channel(struct efx_nic *efx, unsigned index)
+{
+ EFX_BUG_ON_PARANOID(index >= efx->n_channels);
+ return efx->channel[index];
+}
+
+/* Iterate over all used channels */
+#define efx_for_each_channel(_channel, _efx) \
+ for (_channel = (_efx)->channel[0]; \
+ _channel; \
+ _channel = (_channel->channel + 1 < (_efx)->n_channels) ? \
+ (_efx)->channel[_channel->channel + 1] : NULL)
+
+static inline struct efx_tx_queue *
+efx_get_tx_queue(struct efx_nic *efx, unsigned index, unsigned type)
+{
+ EFX_BUG_ON_PARANOID(index >= efx->n_tx_channels ||
+ type >= EFX_TXQ_TYPES);
+ return &efx->channel[efx->tx_channel_offset + index]->tx_queue[type];
+}
+
+static inline bool efx_channel_has_tx_queues(struct efx_channel *channel)
+{
+ return channel->channel - channel->efx->tx_channel_offset <
+ channel->efx->n_tx_channels;
+}
+
+static inline struct efx_tx_queue *
+efx_channel_get_tx_queue(struct efx_channel *channel, unsigned type)
+{
+ EFX_BUG_ON_PARANOID(!efx_channel_has_tx_queues(channel) ||
+ type >= EFX_TXQ_TYPES);
+ return &channel->tx_queue[type];
+}
+
+static inline bool efx_tx_queue_used(struct efx_tx_queue *tx_queue)
+{
+ return !(tx_queue->efx->net_dev->num_tc < 2 &&
+ tx_queue->queue & EFX_TXQ_TYPE_HIGHPRI);
+}
+
+/* Iterate over all TX queues belonging to a channel */
+#define efx_for_each_channel_tx_queue(_tx_queue, _channel) \
+ if (!efx_channel_has_tx_queues(_channel)) \
+ ; \
+ else \
+ for (_tx_queue = (_channel)->tx_queue; \
+ _tx_queue < (_channel)->tx_queue + EFX_TXQ_TYPES && \
+ efx_tx_queue_used(_tx_queue); \
+ _tx_queue++)
+
+/* Iterate over all possible TX queues belonging to a channel */
+#define efx_for_each_possible_channel_tx_queue(_tx_queue, _channel) \
+ for (_tx_queue = (_channel)->tx_queue; \
+ _tx_queue < (_channel)->tx_queue + EFX_TXQ_TYPES; \
+ _tx_queue++)
+
+static inline struct efx_rx_queue *
+efx_get_rx_queue(struct efx_nic *efx, unsigned index)
+{
+ EFX_BUG_ON_PARANOID(index >= efx->n_rx_channels);
+ return &efx->channel[index]->rx_queue;
+}
+
+static inline bool efx_channel_has_rx_queue(struct efx_channel *channel)
+{
+ return channel->channel < channel->efx->n_rx_channels;
+}
+
+static inline struct efx_rx_queue *
+efx_channel_get_rx_queue(struct efx_channel *channel)
+{
+ EFX_BUG_ON_PARANOID(!efx_channel_has_rx_queue(channel));
+ return &channel->rx_queue;
+}
+
+/* Iterate over all RX queues belonging to a channel */
+#define efx_for_each_channel_rx_queue(_rx_queue, _channel) \
+ if (!efx_channel_has_rx_queue(_channel)) \
+ ; \
+ else \
+ for (_rx_queue = &(_channel)->rx_queue; \
+ _rx_queue; \
+ _rx_queue = NULL)
+
+static inline struct efx_channel *
+efx_rx_queue_channel(struct efx_rx_queue *rx_queue)
+{
+ return container_of(rx_queue, struct efx_channel, rx_queue);
+}
+
+static inline int efx_rx_queue_index(struct efx_rx_queue *rx_queue)
+{
+ return efx_rx_queue_channel(rx_queue)->channel;
+}
+
+/* Returns a pointer to the specified receive buffer in the RX
+ * descriptor queue.
+ */
+static inline struct efx_rx_buffer *efx_rx_buffer(struct efx_rx_queue *rx_queue,
+ unsigned int index)
+{
+ return &rx_queue->buffer[index];
+}
+
+/* Set bit in a little-endian bitfield */
+static inline void set_bit_le(unsigned nr, unsigned char *addr)
+{
+ addr[nr / 8] |= (1 << (nr % 8));
+}
+
+/* Clear bit in a little-endian bitfield */
+static inline void clear_bit_le(unsigned nr, unsigned char *addr)
+{
+ addr[nr / 8] &= ~(1 << (nr % 8));
+}
+
+
+/**
+ * EFX_MAX_FRAME_LEN - calculate maximum frame length
+ *
+ * This calculates the maximum frame length that will be used for a
+ * given MTU. The frame length will be equal to the MTU plus a
+ * constant amount of header space and padding. This is the quantity
+ * that the net driver will program into the MAC as the maximum frame
+ * length.
+ *
+ * The 10G MAC requires 8-byte alignment on the frame
+ * length, so we round up to the nearest 8.
+ *
+ * Re-clocking by the XGXS on RX can reduce an IPG to 32 bits (half an
+ * XGMII cycle). If the frame length reaches the maximum value in the
+ * same cycle, the XMAC can miss the IPG altogether. We work around
+ * this by adding a further 16 bytes.
+ */
+#define EFX_MAX_FRAME_LEN(mtu) \
+ ((((mtu) + ETH_HLEN + VLAN_HLEN + 4/* FCS */ + 7) & ~7) + 16)
+
+
+#endif /* EFX_NET_DRIVER_H */
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
new file mode 100644
index 000000000000..bafa23a6874c
--- /dev/null
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -0,0 +1,1969 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include "net_driver.h"
+#include "bitfield.h"
+#include "efx.h"
+#include "nic.h"
+#include "regs.h"
+#include "io.h"
+#include "workarounds.h"
+
+/**************************************************************************
+ *
+ * Configurable values
+ *
+ **************************************************************************
+ */
+
+/* This is set to 16 for a good reason. In summary, if larger than
+ * 16, the descriptor cache holds more than a default socket
+ * buffer's worth of packets (for UDP we can only have at most one
+ * socket buffer's worth outstanding). This combined with the fact
+ * that we only get 1 TX event per descriptor cache means the NIC
+ * goes idle.
+ */
+#define TX_DC_ENTRIES 16
+#define TX_DC_ENTRIES_ORDER 1
+
+#define RX_DC_ENTRIES 64
+#define RX_DC_ENTRIES_ORDER 3
+
+/* If EFX_MAX_INT_ERRORS internal errors occur within
+ * EFX_INT_ERROR_EXPIRE seconds, we consider the NIC broken and
+ * disable it.
+ */
+#define EFX_INT_ERROR_EXPIRE 3600
+#define EFX_MAX_INT_ERRORS 5
+
+/* We poll for events every FLUSH_INTERVAL ms, and check FLUSH_POLL_COUNT times
+ */
+#define EFX_FLUSH_INTERVAL 10
+#define EFX_FLUSH_POLL_COUNT 100
+
+/* Size and alignment of special buffers (4KB) */
+#define EFX_BUF_SIZE 4096
+
+/* Depth of RX flush request fifo */
+#define EFX_RX_FLUSH_COUNT 4
+
+/* Generated event code for efx_generate_test_event() */
+#define EFX_CHANNEL_MAGIC_TEST(_channel) \
+ (0x00010100 + (_channel)->channel)
+
+/* Generated event code for efx_generate_fill_event() */
+#define EFX_CHANNEL_MAGIC_FILL(_channel) \
+ (0x00010200 + (_channel)->channel)
+
+/**************************************************************************
+ *
+ * Solarstorm hardware access
+ *
+ **************************************************************************/
+
+static inline void efx_write_buf_tbl(struct efx_nic *efx, efx_qword_t *value,
+ unsigned int index)
+{
+ efx_sram_writeq(efx, efx->membase + efx->type->buf_tbl_base,
+ value, index);
+}
+
+/* Read the current event from the event queue */
+static inline efx_qword_t *efx_event(struct efx_channel *channel,
+ unsigned int index)
+{
+ return ((efx_qword_t *) (channel->eventq.addr)) +
+ (index & channel->eventq_mask);
+}
+
+/* See if an event is present
+ *
+ * We check both the high and low dword of the event for all ones. We
+ * wrote all ones when we cleared the event, and no valid event can
+ * have all ones in either its high or low dwords. This approach is
+ * robust against reordering.
+ *
+ * Note that using a single 64-bit comparison is incorrect; even
+ * though the CPU read will be atomic, the DMA write may not be.
+ */
+static inline int efx_event_present(efx_qword_t *event)
+{
+ return !(EFX_DWORD_IS_ALL_ONES(event->dword[0]) |
+ EFX_DWORD_IS_ALL_ONES(event->dword[1]));
+}
+
+static bool efx_masked_compare_oword(const efx_oword_t *a, const efx_oword_t *b,
+ const efx_oword_t *mask)
+{
+ return ((a->u64[0] ^ b->u64[0]) & mask->u64[0]) ||
+ ((a->u64[1] ^ b->u64[1]) & mask->u64[1]);
+}
+
+int efx_nic_test_registers(struct efx_nic *efx,
+ const struct efx_nic_register_test *regs,
+ size_t n_regs)
+{
+ unsigned address = 0, i, j;
+ efx_oword_t mask, imask, original, reg, buf;
+
+ /* Falcon should be in loopback to isolate the XMAC from the PHY */
+ WARN_ON(!LOOPBACK_INTERNAL(efx));
+
+ for (i = 0; i < n_regs; ++i) {
+ address = regs[i].address;
+ mask = imask = regs[i].mask;
+ EFX_INVERT_OWORD(imask);
+
+ efx_reado(efx, &original, address);
+
+ /* bit sweep on and off */
+ for (j = 0; j < 128; j++) {
+ if (!EFX_EXTRACT_OWORD32(mask, j, j))
+ continue;
+
+ /* Test this testable bit can be set in isolation */
+ EFX_AND_OWORD(reg, original, mask);
+ EFX_SET_OWORD32(reg, j, j, 1);
+
+ efx_writeo(efx, &reg, address);
+ efx_reado(efx, &buf, address);
+
+ if (efx_masked_compare_oword(&reg, &buf, &mask))
+ goto fail;
+
+ /* Test this testable bit can be cleared in isolation */
+ EFX_OR_OWORD(reg, original, mask);
+ EFX_SET_OWORD32(reg, j, j, 0);
+
+ efx_writeo(efx, &reg, address);
+ efx_reado(efx, &buf, address);
+
+ if (efx_masked_compare_oword(&reg, &buf, &mask))
+ goto fail;
+ }
+
+ efx_writeo(efx, &original, address);
+ }
+
+ return 0;
+
+fail:
+ netif_err(efx, hw, efx->net_dev,
+ "wrote "EFX_OWORD_FMT" read "EFX_OWORD_FMT
+ " at address 0x%x mask "EFX_OWORD_FMT"\n", EFX_OWORD_VAL(reg),
+ EFX_OWORD_VAL(buf), address, EFX_OWORD_VAL(mask));
+ return -EIO;
+}
+
+/**************************************************************************
+ *
+ * Special buffer handling
+ * Special buffers are used for event queues and the TX and RX
+ * descriptor rings.
+ *
+ *************************************************************************/
+
+/*
+ * Initialise a special buffer
+ *
+ * This will define a buffer (previously allocated via
+ * efx_alloc_special_buffer()) in the buffer table, allowing
+ * it to be used for event queues, descriptor rings etc.
+ */
+static void
+efx_init_special_buffer(struct efx_nic *efx, struct efx_special_buffer *buffer)
+{
+ efx_qword_t buf_desc;
+ int index;
+ dma_addr_t dma_addr;
+ int i;
+
+ EFX_BUG_ON_PARANOID(!buffer->addr);
+
+ /* Write buffer descriptors to NIC */
+ for (i = 0; i < buffer->entries; i++) {
+ index = buffer->index + i;
+ dma_addr = buffer->dma_addr + (i * 4096);
+ netif_dbg(efx, probe, efx->net_dev,
+ "mapping special buffer %d at %llx\n",
+ index, (unsigned long long)dma_addr);
+ EFX_POPULATE_QWORD_3(buf_desc,
+ FRF_AZ_BUF_ADR_REGION, 0,
+ FRF_AZ_BUF_ADR_FBUF, dma_addr >> 12,
+ FRF_AZ_BUF_OWNER_ID_FBUF, 0);
+ efx_write_buf_tbl(efx, &buf_desc, index);
+ }
+}
+
+/* Unmaps a buffer and clears the buffer table entries */
+static void
+efx_fini_special_buffer(struct efx_nic *efx, struct efx_special_buffer *buffer)
+{
+ efx_oword_t buf_tbl_upd;
+ unsigned int start = buffer->index;
+ unsigned int end = (buffer->index + buffer->entries - 1);
+
+ if (!buffer->entries)
+ return;
+
+ netif_dbg(efx, hw, efx->net_dev, "unmapping special buffers %d-%d\n",
+ buffer->index, buffer->index + buffer->entries - 1);
+
+ EFX_POPULATE_OWORD_4(buf_tbl_upd,
+ FRF_AZ_BUF_UPD_CMD, 0,
+ FRF_AZ_BUF_CLR_CMD, 1,
+ FRF_AZ_BUF_CLR_END_ID, end,
+ FRF_AZ_BUF_CLR_START_ID, start);
+ efx_writeo(efx, &buf_tbl_upd, FR_AZ_BUF_TBL_UPD);
+}
+
+/*
+ * Allocate a new special buffer
+ *
+ * This allocates memory for a new buffer, clears it and allocates a
+ * new buffer ID range. It does not write into the buffer table.
+ *
+ * This call will allocate 4KB buffers, since 8KB buffers can't be
+ * used for event queues and descriptor rings.
+ */
+static int efx_alloc_special_buffer(struct efx_nic *efx,
+ struct efx_special_buffer *buffer,
+ unsigned int len)
+{
+ len = ALIGN(len, EFX_BUF_SIZE);
+
+ buffer->addr = dma_alloc_coherent(&efx->pci_dev->dev, len,
+ &buffer->dma_addr, GFP_KERNEL);
+ if (!buffer->addr)
+ return -ENOMEM;
+ buffer->len = len;
+ buffer->entries = len / EFX_BUF_SIZE;
+ BUG_ON(buffer->dma_addr & (EFX_BUF_SIZE - 1));
+
+ /* All zeros is a potentially valid event so memset to 0xff */
+ memset(buffer->addr, 0xff, len);
+
+ /* Select new buffer ID */
+ buffer->index = efx->next_buffer_table;
+ efx->next_buffer_table += buffer->entries;
+
+ netif_dbg(efx, probe, efx->net_dev,
+ "allocating special buffers %d-%d at %llx+%x "
+ "(virt %p phys %llx)\n", buffer->index,
+ buffer->index + buffer->entries - 1,
+ (u64)buffer->dma_addr, len,
+ buffer->addr, (u64)virt_to_phys(buffer->addr));
+
+ return 0;
+}
+
+static void
+efx_free_special_buffer(struct efx_nic *efx, struct efx_special_buffer *buffer)
+{
+ if (!buffer->addr)
+ return;
+
+ netif_dbg(efx, hw, efx->net_dev,
+ "deallocating special buffers %d-%d at %llx+%x "
+ "(virt %p phys %llx)\n", buffer->index,
+ buffer->index + buffer->entries - 1,
+ (u64)buffer->dma_addr, buffer->len,
+ buffer->addr, (u64)virt_to_phys(buffer->addr));
+
+ dma_free_coherent(&efx->pci_dev->dev, buffer->len, buffer->addr,
+ buffer->dma_addr);
+ buffer->addr = NULL;
+ buffer->entries = 0;
+}
+
+/**************************************************************************
+ *
+ * Generic buffer handling
+ * These buffers are used for interrupt status and MAC stats
+ *
+ **************************************************************************/
+
+int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
+ unsigned int len)
+{
+ buffer->addr = pci_alloc_consistent(efx->pci_dev, len,
+ &buffer->dma_addr);
+ if (!buffer->addr)
+ return -ENOMEM;
+ buffer->len = len;
+ memset(buffer->addr, 0, len);
+ return 0;
+}
+
+void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer)
+{
+ if (buffer->addr) {
+ pci_free_consistent(efx->pci_dev, buffer->len,
+ buffer->addr, buffer->dma_addr);
+ buffer->addr = NULL;
+ }
+}
+
+/**************************************************************************
+ *
+ * TX path
+ *
+ **************************************************************************/
+
+/* Returns a pointer to the specified transmit descriptor in the TX
+ * descriptor queue belonging to the specified channel.
+ */
+static inline efx_qword_t *
+efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
+{
+ return ((efx_qword_t *) (tx_queue->txd.addr)) + index;
+}
+
+/* This writes to the TX_DESC_WPTR; write pointer for TX descriptor ring */
+static inline void efx_notify_tx_desc(struct efx_tx_queue *tx_queue)
+{
+ unsigned write_ptr;
+ efx_dword_t reg;
+
+ write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
+ EFX_POPULATE_DWORD_1(reg, FRF_AZ_TX_DESC_WPTR_DWORD, write_ptr);
+ efx_writed_page(tx_queue->efx, &reg,
+ FR_AZ_TX_DESC_UPD_DWORD_P0, tx_queue->queue);
+}
+
+/* Write pointer and first descriptor for TX descriptor ring */
+static inline void efx_push_tx_desc(struct efx_tx_queue *tx_queue,
+ const efx_qword_t *txd)
+{
+ unsigned write_ptr;
+ efx_oword_t reg;
+
+ BUILD_BUG_ON(FRF_AZ_TX_DESC_LBN != 0);
+ BUILD_BUG_ON(FR_AA_TX_DESC_UPD_KER != FR_BZ_TX_DESC_UPD_P0);
+
+ write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
+ EFX_POPULATE_OWORD_2(reg, FRF_AZ_TX_DESC_PUSH_CMD, true,
+ FRF_AZ_TX_DESC_WPTR, write_ptr);
+ reg.qword[0] = *txd;
+ efx_writeo_page(tx_queue->efx, &reg,
+ FR_BZ_TX_DESC_UPD_P0, tx_queue->queue);
+}
+
+static inline bool
+efx_may_push_tx_desc(struct efx_tx_queue *tx_queue, unsigned int write_count)
+{
+ unsigned empty_read_count = ACCESS_ONCE(tx_queue->empty_read_count);
+
+ if (empty_read_count == 0)
+ return false;
+
+ tx_queue->empty_read_count = 0;
+ return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0;
+}
+
+/* For each entry inserted into the software descriptor ring, create a
+ * descriptor in the hardware TX descriptor ring (in host memory), and
+ * write a doorbell.
+ */
+void efx_nic_push_buffers(struct efx_tx_queue *tx_queue)
+{
+
+ struct efx_tx_buffer *buffer;
+ efx_qword_t *txd;
+ unsigned write_ptr;
+ unsigned old_write_count = tx_queue->write_count;
+
+ BUG_ON(tx_queue->write_count == tx_queue->insert_count);
+
+ do {
+ write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
+ buffer = &tx_queue->buffer[write_ptr];
+ txd = efx_tx_desc(tx_queue, write_ptr);
+ ++tx_queue->write_count;
+
+ /* Create TX descriptor ring entry */
+ EFX_POPULATE_QWORD_4(*txd,
+ FSF_AZ_TX_KER_CONT, buffer->continuation,
+ FSF_AZ_TX_KER_BYTE_COUNT, buffer->len,
+ FSF_AZ_TX_KER_BUF_REGION, 0,
+ FSF_AZ_TX_KER_BUF_ADDR, buffer->dma_addr);
+ } while (tx_queue->write_count != tx_queue->insert_count);
+
+ wmb(); /* Ensure descriptors are written before they are fetched */
+
+ if (efx_may_push_tx_desc(tx_queue, old_write_count)) {
+ txd = efx_tx_desc(tx_queue,
+ old_write_count & tx_queue->ptr_mask);
+ efx_push_tx_desc(tx_queue, txd);
+ ++tx_queue->pushes;
+ } else {
+ efx_notify_tx_desc(tx_queue);
+ }
+}
+
+/* Allocate hardware resources for a TX queue */
+int efx_nic_probe_tx(struct efx_tx_queue *tx_queue)
+{
+ struct efx_nic *efx = tx_queue->efx;
+ unsigned entries;
+
+ entries = tx_queue->ptr_mask + 1;
+ return efx_alloc_special_buffer(efx, &tx_queue->txd,
+ entries * sizeof(efx_qword_t));
+}
+
+void efx_nic_init_tx(struct efx_tx_queue *tx_queue)
+{
+ struct efx_nic *efx = tx_queue->efx;
+ efx_oword_t reg;
+
+ tx_queue->flushed = FLUSH_NONE;
+
+ /* Pin TX descriptor ring */
+ efx_init_special_buffer(efx, &tx_queue->txd);
+
+ /* Push TX descriptor ring to card */
+ EFX_POPULATE_OWORD_10(reg,
+ FRF_AZ_TX_DESCQ_EN, 1,
+ FRF_AZ_TX_ISCSI_DDIG_EN, 0,
+ FRF_AZ_TX_ISCSI_HDIG_EN, 0,
+ FRF_AZ_TX_DESCQ_BUF_BASE_ID, tx_queue->txd.index,
+ FRF_AZ_TX_DESCQ_EVQ_ID,
+ tx_queue->channel->channel,
+ FRF_AZ_TX_DESCQ_OWNER_ID, 0,
+ FRF_AZ_TX_DESCQ_LABEL, tx_queue->queue,
+ FRF_AZ_TX_DESCQ_SIZE,
+ __ffs(tx_queue->txd.entries),
+ FRF_AZ_TX_DESCQ_TYPE, 0,
+ FRF_BZ_TX_NON_IP_DROP_DIS, 1);
+
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+ int csum = tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD;
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_TX_IP_CHKSM_DIS, !csum);
+ EFX_SET_OWORD_FIELD(reg, FRF_BZ_TX_TCP_CHKSM_DIS,
+ !csum);
+ }
+
+ efx_writeo_table(efx, &reg, efx->type->txd_ptr_tbl_base,
+ tx_queue->queue);
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0) {
+ /* Only 128 bits in this register */
+ BUILD_BUG_ON(EFX_MAX_TX_QUEUES > 128);
+
+ efx_reado(efx, &reg, FR_AA_TX_CHKSM_CFG);
+ if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
+ clear_bit_le(tx_queue->queue, (void *)&reg);
+ else
+ set_bit_le(tx_queue->queue, (void *)&reg);
+ efx_writeo(efx, &reg, FR_AA_TX_CHKSM_CFG);
+ }
+
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+ EFX_POPULATE_OWORD_1(reg,
+ FRF_BZ_TX_PACE,
+ (tx_queue->queue & EFX_TXQ_TYPE_HIGHPRI) ?
+ FFE_BZ_TX_PACE_OFF :
+ FFE_BZ_TX_PACE_RESERVED);
+ efx_writeo_table(efx, &reg, FR_BZ_TX_PACE_TBL,
+ tx_queue->queue);
+ }
+}
+
+static void efx_flush_tx_queue(struct efx_tx_queue *tx_queue)
+{
+ struct efx_nic *efx = tx_queue->efx;
+ efx_oword_t tx_flush_descq;
+
+ tx_queue->flushed = FLUSH_PENDING;
+
+ /* Post a flush command */
+ EFX_POPULATE_OWORD_2(tx_flush_descq,
+ FRF_AZ_TX_FLUSH_DESCQ_CMD, 1,
+ FRF_AZ_TX_FLUSH_DESCQ, tx_queue->queue);
+ efx_writeo(efx, &tx_flush_descq, FR_AZ_TX_FLUSH_DESCQ);
+}
+
+void efx_nic_fini_tx(struct efx_tx_queue *tx_queue)
+{
+ struct efx_nic *efx = tx_queue->efx;
+ efx_oword_t tx_desc_ptr;
+
+ /* The queue should have been flushed */
+ WARN_ON(tx_queue->flushed != FLUSH_DONE);
+
+ /* Remove TX descriptor ring from card */
+ EFX_ZERO_OWORD(tx_desc_ptr);
+ efx_writeo_table(efx, &tx_desc_ptr, efx->type->txd_ptr_tbl_base,
+ tx_queue->queue);
+
+ /* Unpin TX descriptor ring */
+ efx_fini_special_buffer(efx, &tx_queue->txd);
+}
+
+/* Free buffers backing TX queue */
+void efx_nic_remove_tx(struct efx_tx_queue *tx_queue)
+{
+ efx_free_special_buffer(tx_queue->efx, &tx_queue->txd);
+}
+
+/**************************************************************************
+ *
+ * RX path
+ *
+ **************************************************************************/
+
+/* Returns a pointer to the specified descriptor in the RX descriptor queue */
+static inline efx_qword_t *
+efx_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index)
+{
+ return ((efx_qword_t *) (rx_queue->rxd.addr)) + index;
+}
+
+/* This creates an entry in the RX descriptor queue */
+static inline void
+efx_build_rx_desc(struct efx_rx_queue *rx_queue, unsigned index)
+{
+ struct efx_rx_buffer *rx_buf;
+ efx_qword_t *rxd;
+
+ rxd = efx_rx_desc(rx_queue, index);
+ rx_buf = efx_rx_buffer(rx_queue, index);
+ EFX_POPULATE_QWORD_3(*rxd,
+ FSF_AZ_RX_KER_BUF_SIZE,
+ rx_buf->len -
+ rx_queue->efx->type->rx_buffer_padding,
+ FSF_AZ_RX_KER_BUF_REGION, 0,
+ FSF_AZ_RX_KER_BUF_ADDR, rx_buf->dma_addr);
+}
+
+/* This writes to the RX_DESC_WPTR register for the specified receive
+ * descriptor ring.
+ */
+void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue)
+{
+ struct efx_nic *efx = rx_queue->efx;
+ efx_dword_t reg;
+ unsigned write_ptr;
+
+ while (rx_queue->notified_count != rx_queue->added_count) {
+ efx_build_rx_desc(
+ rx_queue,
+ rx_queue->notified_count & rx_queue->ptr_mask);
+ ++rx_queue->notified_count;
+ }
+
+ wmb();
+ write_ptr = rx_queue->added_count & rx_queue->ptr_mask;
+ EFX_POPULATE_DWORD_1(reg, FRF_AZ_RX_DESC_WPTR_DWORD, write_ptr);
+ efx_writed_page(efx, &reg, FR_AZ_RX_DESC_UPD_DWORD_P0,
+ efx_rx_queue_index(rx_queue));
+}
+
+int efx_nic_probe_rx(struct efx_rx_queue *rx_queue)
+{
+ struct efx_nic *efx = rx_queue->efx;
+ unsigned entries;
+
+ entries = rx_queue->ptr_mask + 1;
+ return efx_alloc_special_buffer(efx, &rx_queue->rxd,
+ entries * sizeof(efx_qword_t));
+}
+
+void efx_nic_init_rx(struct efx_rx_queue *rx_queue)
+{
+ efx_oword_t rx_desc_ptr;
+ struct efx_nic *efx = rx_queue->efx;
+ bool is_b0 = efx_nic_rev(efx) >= EFX_REV_FALCON_B0;
+ bool iscsi_digest_en = is_b0;
+
+ netif_dbg(efx, hw, efx->net_dev,
+ "RX queue %d ring in special buffers %d-%d\n",
+ efx_rx_queue_index(rx_queue), rx_queue->rxd.index,
+ rx_queue->rxd.index + rx_queue->rxd.entries - 1);
+
+ rx_queue->flushed = FLUSH_NONE;
+
+ /* Pin RX descriptor ring */
+ efx_init_special_buffer(efx, &rx_queue->rxd);
+
+ /* Push RX descriptor ring to card */
+ EFX_POPULATE_OWORD_10(rx_desc_ptr,
+ FRF_AZ_RX_ISCSI_DDIG_EN, iscsi_digest_en,
+ FRF_AZ_RX_ISCSI_HDIG_EN, iscsi_digest_en,
+ FRF_AZ_RX_DESCQ_BUF_BASE_ID, rx_queue->rxd.index,
+ FRF_AZ_RX_DESCQ_EVQ_ID,
+ efx_rx_queue_channel(rx_queue)->channel,
+ FRF_AZ_RX_DESCQ_OWNER_ID, 0,
+ FRF_AZ_RX_DESCQ_LABEL,
+ efx_rx_queue_index(rx_queue),
+ FRF_AZ_RX_DESCQ_SIZE,
+ __ffs(rx_queue->rxd.entries),
+ FRF_AZ_RX_DESCQ_TYPE, 0 /* kernel queue */ ,
+ /* For >=B0 this is scatter so disable */
+ FRF_AZ_RX_DESCQ_JUMBO, !is_b0,
+ FRF_AZ_RX_DESCQ_EN, 1);
+ efx_writeo_table(efx, &rx_desc_ptr, efx->type->rxd_ptr_tbl_base,
+ efx_rx_queue_index(rx_queue));
+}
+
+static void efx_flush_rx_queue(struct efx_rx_queue *rx_queue)
+{
+ struct efx_nic *efx = rx_queue->efx;
+ efx_oword_t rx_flush_descq;
+
+ rx_queue->flushed = FLUSH_PENDING;
+
+ /* Post a flush command */
+ EFX_POPULATE_OWORD_2(rx_flush_descq,
+ FRF_AZ_RX_FLUSH_DESCQ_CMD, 1,
+ FRF_AZ_RX_FLUSH_DESCQ,
+ efx_rx_queue_index(rx_queue));
+ efx_writeo(efx, &rx_flush_descq, FR_AZ_RX_FLUSH_DESCQ);
+}
+
+void efx_nic_fini_rx(struct efx_rx_queue *rx_queue)
+{
+ efx_oword_t rx_desc_ptr;
+ struct efx_nic *efx = rx_queue->efx;
+
+ /* The queue should already have been flushed */
+ WARN_ON(rx_queue->flushed != FLUSH_DONE);
+
+ /* Remove RX descriptor ring from card */
+ EFX_ZERO_OWORD(rx_desc_ptr);
+ efx_writeo_table(efx, &rx_desc_ptr, efx->type->rxd_ptr_tbl_base,
+ efx_rx_queue_index(rx_queue));
+
+ /* Unpin RX descriptor ring */
+ efx_fini_special_buffer(efx, &rx_queue->rxd);
+}
+
+/* Free buffers backing RX queue */
+void efx_nic_remove_rx(struct efx_rx_queue *rx_queue)
+{
+ efx_free_special_buffer(rx_queue->efx, &rx_queue->rxd);
+}
+
+/**************************************************************************
+ *
+ * Event queue processing
+ * Event queues are processed by per-channel tasklets.
+ *
+ **************************************************************************/
+
+/* Update a channel's event queue's read pointer (RPTR) register
+ *
+ * This writes the EVQ_RPTR_REG register for the specified channel's
+ * event queue.
+ */
+void efx_nic_eventq_read_ack(struct efx_channel *channel)
+{
+ efx_dword_t reg;
+ struct efx_nic *efx = channel->efx;
+
+ EFX_POPULATE_DWORD_1(reg, FRF_AZ_EVQ_RPTR,
+ channel->eventq_read_ptr & channel->eventq_mask);
+ efx_writed_table(efx, &reg, efx->type->evq_rptr_tbl_base,
+ channel->channel);
+}
+
+/* Use HW to insert a SW defined event */
+static void efx_generate_event(struct efx_channel *channel, efx_qword_t *event)
+{
+ efx_oword_t drv_ev_reg;
+
+ BUILD_BUG_ON(FRF_AZ_DRV_EV_DATA_LBN != 0 ||
+ FRF_AZ_DRV_EV_DATA_WIDTH != 64);
+ drv_ev_reg.u32[0] = event->u32[0];
+ drv_ev_reg.u32[1] = event->u32[1];
+ drv_ev_reg.u32[2] = 0;
+ drv_ev_reg.u32[3] = 0;
+ EFX_SET_OWORD_FIELD(drv_ev_reg, FRF_AZ_DRV_EV_QID, channel->channel);
+ efx_writeo(channel->efx, &drv_ev_reg, FR_AZ_DRV_EV);
+}
+
+/* Handle a transmit completion event
+ *
+ * The NIC batches TX completion events; the message we receive is of
+ * the form "complete all TX events up to this index".
+ */
+static int
+efx_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
+{
+ unsigned int tx_ev_desc_ptr;
+ unsigned int tx_ev_q_label;
+ struct efx_tx_queue *tx_queue;
+ struct efx_nic *efx = channel->efx;
+ int tx_packets = 0;
+
+ if (likely(EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_COMP))) {
+ /* Transmit completion */
+ tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_DESC_PTR);
+ tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL);
+ tx_queue = efx_channel_get_tx_queue(
+ channel, tx_ev_q_label % EFX_TXQ_TYPES);
+ tx_packets = ((tx_ev_desc_ptr - tx_queue->read_count) &
+ tx_queue->ptr_mask);
+ channel->irq_mod_score += tx_packets;
+ efx_xmit_done(tx_queue, tx_ev_desc_ptr);
+ } else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) {
+ /* Rewrite the FIFO write pointer */
+ tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL);
+ tx_queue = efx_channel_get_tx_queue(
+ channel, tx_ev_q_label % EFX_TXQ_TYPES);
+
+ if (efx_dev_registered(efx))
+ netif_tx_lock(efx->net_dev);
+ efx_notify_tx_desc(tx_queue);
+ if (efx_dev_registered(efx))
+ netif_tx_unlock(efx->net_dev);
+ } else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_PKT_ERR) &&
+ EFX_WORKAROUND_10727(efx)) {
+ efx_schedule_reset(efx, RESET_TYPE_TX_DESC_FETCH);
+ } else {
+ netif_err(efx, tx_err, efx->net_dev,
+ "channel %d unexpected TX event "
+ EFX_QWORD_FMT"\n", channel->channel,
+ EFX_QWORD_VAL(*event));
+ }
+
+ return tx_packets;
+}
+
+/* Detect errors included in the rx_evt_pkt_ok bit. */
+static void efx_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
+ const efx_qword_t *event,
+ bool *rx_ev_pkt_ok,
+ bool *discard)
+{
+ struct efx_channel *channel = efx_rx_queue_channel(rx_queue);
+ struct efx_nic *efx = rx_queue->efx;
+ bool rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
+ bool rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err;
+ bool rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
+ bool rx_ev_other_err, rx_ev_pause_frm;
+ bool rx_ev_hdr_type, rx_ev_mcast_pkt;
+ unsigned rx_ev_pkt_type;
+
+ rx_ev_hdr_type = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_HDR_TYPE);
+ rx_ev_mcast_pkt = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_MCAST_PKT);
+ rx_ev_tobe_disc = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_TOBE_DISC);
+ rx_ev_pkt_type = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_PKT_TYPE);
+ rx_ev_buf_owner_id_err = EFX_QWORD_FIELD(*event,
+ FSF_AZ_RX_EV_BUF_OWNER_ID_ERR);
+ rx_ev_ip_hdr_chksum_err = EFX_QWORD_FIELD(*event,
+ FSF_AZ_RX_EV_IP_HDR_CHKSUM_ERR);
+ rx_ev_tcp_udp_chksum_err = EFX_QWORD_FIELD(*event,
+ FSF_AZ_RX_EV_TCP_UDP_CHKSUM_ERR);
+ rx_ev_eth_crc_err = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_ETH_CRC_ERR);
+ rx_ev_frm_trunc = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_FRM_TRUNC);
+ rx_ev_drib_nib = ((efx_nic_rev(efx) >= EFX_REV_FALCON_B0) ?
+ 0 : EFX_QWORD_FIELD(*event, FSF_AA_RX_EV_DRIB_NIB));
+ rx_ev_pause_frm = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_PAUSE_FRM_ERR);
+
+ /* Every error apart from tobe_disc and pause_frm */
+ rx_ev_other_err = (rx_ev_drib_nib | rx_ev_tcp_udp_chksum_err |
+ rx_ev_buf_owner_id_err | rx_ev_eth_crc_err |
+ rx_ev_frm_trunc | rx_ev_ip_hdr_chksum_err);
+
+ /* Count errors that are not in MAC stats. Ignore expected
+ * checksum errors during self-test. */
+ if (rx_ev_frm_trunc)
+ ++channel->n_rx_frm_trunc;
+ else if (rx_ev_tobe_disc)
+ ++channel->n_rx_tobe_disc;
+ else if (!efx->loopback_selftest) {
+ if (rx_ev_ip_hdr_chksum_err)
+ ++channel->n_rx_ip_hdr_chksum_err;
+ else if (rx_ev_tcp_udp_chksum_err)
+ ++channel->n_rx_tcp_udp_chksum_err;
+ }
+
+ /* The frame must be discarded if any of these are true. */
+ *discard = (rx_ev_eth_crc_err | rx_ev_frm_trunc | rx_ev_drib_nib |
+ rx_ev_tobe_disc | rx_ev_pause_frm);
+
+ /* TOBE_DISC is expected on unicast mismatches; don't print out an
+ * error message. FRM_TRUNC indicates RXDP dropped the packet due
+ * to a FIFO overflow.
+ */
+#ifdef EFX_ENABLE_DEBUG
+ if (rx_ev_other_err && net_ratelimit()) {
+ netif_dbg(efx, rx_err, efx->net_dev,
+ " RX queue %d unexpected RX event "
+ EFX_QWORD_FMT "%s%s%s%s%s%s%s%s\n",
+ efx_rx_queue_index(rx_queue), EFX_QWORD_VAL(*event),
+ rx_ev_buf_owner_id_err ? " [OWNER_ID_ERR]" : "",
+ rx_ev_ip_hdr_chksum_err ?
+ " [IP_HDR_CHKSUM_ERR]" : "",
+ rx_ev_tcp_udp_chksum_err ?
+ " [TCP_UDP_CHKSUM_ERR]" : "",
+ rx_ev_eth_crc_err ? " [ETH_CRC_ERR]" : "",
+ rx_ev_frm_trunc ? " [FRM_TRUNC]" : "",
+ rx_ev_drib_nib ? " [DRIB_NIB]" : "",
+ rx_ev_tobe_disc ? " [TOBE_DISC]" : "",
+ rx_ev_pause_frm ? " [PAUSE]" : "");
+ }
+#endif
+}
+
+/* Handle receive events that are not in-order. */
+static void
+efx_handle_rx_bad_index(struct efx_rx_queue *rx_queue, unsigned index)
+{
+ struct efx_nic *efx = rx_queue->efx;
+ unsigned expected, dropped;
+
+ expected = rx_queue->removed_count & rx_queue->ptr_mask;
+ dropped = (index - expected) & rx_queue->ptr_mask;
+ netif_info(efx, rx_err, efx->net_dev,
+ "dropped %d events (index=%d expected=%d)\n",
+ dropped, index, expected);
+
+ efx_schedule_reset(efx, EFX_WORKAROUND_5676(efx) ?
+ RESET_TYPE_RX_RECOVERY : RESET_TYPE_DISABLE);
+}
+
+/* Handle a packet received event
+ *
+ * The NIC gives a "discard" flag if it's a unicast packet with the
+ * wrong destination address
+ * Also "is multicast" and "matches multicast filter" flags can be used to
+ * discard non-matching multicast packets.
+ */
+static void
+efx_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event)
+{
+ unsigned int rx_ev_desc_ptr, rx_ev_byte_cnt;
+ unsigned int rx_ev_hdr_type, rx_ev_mcast_pkt;
+ unsigned expected_ptr;
+ bool rx_ev_pkt_ok, discard = false, checksummed;
+ struct efx_rx_queue *rx_queue;
+
+ /* Basic packet information */
+ rx_ev_byte_cnt = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_BYTE_CNT);
+ rx_ev_pkt_ok = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_PKT_OK);
+ rx_ev_hdr_type = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_HDR_TYPE);
+ WARN_ON(EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_JUMBO_CONT));
+ WARN_ON(EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_SOP) != 1);
+ WARN_ON(EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_Q_LABEL) !=
+ channel->channel);
+
+ rx_queue = efx_channel_get_rx_queue(channel);
+
+ rx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_DESC_PTR);
+ expected_ptr = rx_queue->removed_count & rx_queue->ptr_mask;
+ if (unlikely(rx_ev_desc_ptr != expected_ptr))
+ efx_handle_rx_bad_index(rx_queue, rx_ev_desc_ptr);
+
+ if (likely(rx_ev_pkt_ok)) {
+ /* If packet is marked as OK and packet type is TCP/IP or
+ * UDP/IP, then we can rely on the hardware checksum.
+ */
+ checksummed =
+ rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP ||
+ rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP;
+ } else {
+ efx_handle_rx_not_ok(rx_queue, event, &rx_ev_pkt_ok, &discard);
+ checksummed = false;
+ }
+
+ /* Detect multicast packets that didn't match the filter */
+ rx_ev_mcast_pkt = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_MCAST_PKT);
+ if (rx_ev_mcast_pkt) {
+ unsigned int rx_ev_mcast_hash_match =
+ EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_MCAST_HASH_MATCH);
+
+ if (unlikely(!rx_ev_mcast_hash_match)) {
+ ++channel->n_rx_mcast_mismatch;
+ discard = true;
+ }
+ }
+
+ channel->irq_mod_score += 2;
+
+ /* Handle received packet */
+ efx_rx_packet(rx_queue, rx_ev_desc_ptr, rx_ev_byte_cnt,
+ checksummed, discard);
+}
+
+static void
+efx_handle_generated_event(struct efx_channel *channel, efx_qword_t *event)
+{
+ struct efx_nic *efx = channel->efx;
+ unsigned code;
+
+ code = EFX_QWORD_FIELD(*event, FSF_AZ_DRV_GEN_EV_MAGIC);
+ if (code == EFX_CHANNEL_MAGIC_TEST(channel))
+ ; /* ignore */
+ else if (code == EFX_CHANNEL_MAGIC_FILL(channel))
+ /* The queue must be empty, so we won't receive any rx
+ * events, so efx_process_channel() won't refill the
+ * queue. Refill it here */
+ efx_fast_push_rx_descriptors(efx_channel_get_rx_queue(channel));
+ else
+ netif_dbg(efx, hw, efx->net_dev, "channel %d received "
+ "generated event "EFX_QWORD_FMT"\n",
+ channel->channel, EFX_QWORD_VAL(*event));
+}
+
+static void
+efx_handle_driver_event(struct efx_channel *channel, efx_qword_t *event)
+{
+ struct efx_nic *efx = channel->efx;
+ unsigned int ev_sub_code;
+ unsigned int ev_sub_data;
+
+ ev_sub_code = EFX_QWORD_FIELD(*event, FSF_AZ_DRIVER_EV_SUBCODE);
+ ev_sub_data = EFX_QWORD_FIELD(*event, FSF_AZ_DRIVER_EV_SUBDATA);
+
+ switch (ev_sub_code) {
+ case FSE_AZ_TX_DESCQ_FLS_DONE_EV:
+ netif_vdbg(efx, hw, efx->net_dev, "channel %d TXQ %d flushed\n",
+ channel->channel, ev_sub_data);
+ break;
+ case FSE_AZ_RX_DESCQ_FLS_DONE_EV:
+ netif_vdbg(efx, hw, efx->net_dev, "channel %d RXQ %d flushed\n",
+ channel->channel, ev_sub_data);
+ break;
+ case FSE_AZ_EVQ_INIT_DONE_EV:
+ netif_dbg(efx, hw, efx->net_dev,
+ "channel %d EVQ %d initialised\n",
+ channel->channel, ev_sub_data);
+ break;
+ case FSE_AZ_SRM_UPD_DONE_EV:
+ netif_vdbg(efx, hw, efx->net_dev,
+ "channel %d SRAM update done\n", channel->channel);
+ break;
+ case FSE_AZ_WAKE_UP_EV:
+ netif_vdbg(efx, hw, efx->net_dev,
+ "channel %d RXQ %d wakeup event\n",
+ channel->channel, ev_sub_data);
+ break;
+ case FSE_AZ_TIMER_EV:
+ netif_vdbg(efx, hw, efx->net_dev,
+ "channel %d RX queue %d timer expired\n",
+ channel->channel, ev_sub_data);
+ break;
+ case FSE_AA_RX_RECOVER_EV:
+ netif_err(efx, rx_err, efx->net_dev,
+ "channel %d seen DRIVER RX_RESET event. "
+ "Resetting.\n", channel->channel);
+ atomic_inc(&efx->rx_reset);
+ efx_schedule_reset(efx,
+ EFX_WORKAROUND_6555(efx) ?
+ RESET_TYPE_RX_RECOVERY :
+ RESET_TYPE_DISABLE);
+ break;
+ case FSE_BZ_RX_DSC_ERROR_EV:
+ netif_err(efx, rx_err, efx->net_dev,
+ "RX DMA Q %d reports descriptor fetch error."
+ " RX Q %d is disabled.\n", ev_sub_data, ev_sub_data);
+ efx_schedule_reset(efx, RESET_TYPE_RX_DESC_FETCH);
+ break;
+ case FSE_BZ_TX_DSC_ERROR_EV:
+ netif_err(efx, tx_err, efx->net_dev,
+ "TX DMA Q %d reports descriptor fetch error."
+ " TX Q %d is disabled.\n", ev_sub_data, ev_sub_data);
+ efx_schedule_reset(efx, RESET_TYPE_TX_DESC_FETCH);
+ break;
+ default:
+ netif_vdbg(efx, hw, efx->net_dev,
+ "channel %d unknown driver event code %d "
+ "data %04x\n", channel->channel, ev_sub_code,
+ ev_sub_data);
+ break;
+ }
+}
+
+int efx_nic_process_eventq(struct efx_channel *channel, int budget)
+{
+ struct efx_nic *efx = channel->efx;
+ unsigned int read_ptr;
+ efx_qword_t event, *p_event;
+ int ev_code;
+ int tx_packets = 0;
+ int spent = 0;
+
+ read_ptr = channel->eventq_read_ptr;
+
+ for (;;) {
+ p_event = efx_event(channel, read_ptr);
+ event = *p_event;
+
+ if (!efx_event_present(&event))
+ /* End of events */
+ break;
+
+ netif_vdbg(channel->efx, intr, channel->efx->net_dev,
+ "channel %d event is "EFX_QWORD_FMT"\n",
+ channel->channel, EFX_QWORD_VAL(event));
+
+ /* Clear this event by marking it all ones */
+ EFX_SET_QWORD(*p_event);
+
+ ++read_ptr;
+
+ ev_code = EFX_QWORD_FIELD(event, FSF_AZ_EV_CODE);
+
+ switch (ev_code) {
+ case FSE_AZ_EV_CODE_RX_EV:
+ efx_handle_rx_event(channel, &event);
+ if (++spent == budget)
+ goto out;
+ break;
+ case FSE_AZ_EV_CODE_TX_EV:
+ tx_packets += efx_handle_tx_event(channel, &event);
+ if (tx_packets > efx->txq_entries) {
+ spent = budget;
+ goto out;
+ }
+ break;
+ case FSE_AZ_EV_CODE_DRV_GEN_EV:
+ efx_handle_generated_event(channel, &event);
+ break;
+ case FSE_AZ_EV_CODE_DRIVER_EV:
+ efx_handle_driver_event(channel, &event);
+ break;
+ case FSE_CZ_EV_CODE_MCDI_EV:
+ efx_mcdi_process_event(channel, &event);
+ break;
+ case FSE_AZ_EV_CODE_GLOBAL_EV:
+ if (efx->type->handle_global_event &&
+ efx->type->handle_global_event(channel, &event))
+ break;
+ /* else fall through */
+ default:
+ netif_err(channel->efx, hw, channel->efx->net_dev,
+ "channel %d unknown event type %d (data "
+ EFX_QWORD_FMT ")\n", channel->channel,
+ ev_code, EFX_QWORD_VAL(event));
+ }
+ }
+
+out:
+ channel->eventq_read_ptr = read_ptr;
+ return spent;
+}
+
+/* Check whether an event is present in the eventq at the current
+ * read pointer. Only useful for self-test.
+ */
+bool efx_nic_event_present(struct efx_channel *channel)
+{
+ return efx_event_present(efx_event(channel, channel->eventq_read_ptr));
+}
+
+/* Allocate buffer table entries for event queue */
+int efx_nic_probe_eventq(struct efx_channel *channel)
+{
+ struct efx_nic *efx = channel->efx;
+ unsigned entries;
+
+ entries = channel->eventq_mask + 1;
+ return efx_alloc_special_buffer(efx, &channel->eventq,
+ entries * sizeof(efx_qword_t));
+}
+
+void efx_nic_init_eventq(struct efx_channel *channel)
+{
+ efx_oword_t reg;
+ struct efx_nic *efx = channel->efx;
+
+ netif_dbg(efx, hw, efx->net_dev,
+ "channel %d event queue in special buffers %d-%d\n",
+ channel->channel, channel->eventq.index,
+ channel->eventq.index + channel->eventq.entries - 1);
+
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) {
+ EFX_POPULATE_OWORD_3(reg,
+ FRF_CZ_TIMER_Q_EN, 1,
+ FRF_CZ_HOST_NOTIFY_MODE, 0,
+ FRF_CZ_TIMER_MODE, FFE_CZ_TIMER_MODE_DIS);
+ efx_writeo_table(efx, &reg, FR_BZ_TIMER_TBL, channel->channel);
+ }
+
+ /* Pin event queue buffer */
+ efx_init_special_buffer(efx, &channel->eventq);
+
+ /* Fill event queue with all ones (i.e. empty events) */
+ memset(channel->eventq.addr, 0xff, channel->eventq.len);
+
+ /* Push event queue to card */
+ EFX_POPULATE_OWORD_3(reg,
+ FRF_AZ_EVQ_EN, 1,
+ FRF_AZ_EVQ_SIZE, __ffs(channel->eventq.entries),
+ FRF_AZ_EVQ_BUF_BASE_ID, channel->eventq.index);
+ efx_writeo_table(efx, &reg, efx->type->evq_ptr_tbl_base,
+ channel->channel);
+
+ efx->type->push_irq_moderation(channel);
+}
+
+void efx_nic_fini_eventq(struct efx_channel *channel)
+{
+ efx_oword_t reg;
+ struct efx_nic *efx = channel->efx;
+
+ /* Remove event queue from card */
+ EFX_ZERO_OWORD(reg);
+ efx_writeo_table(efx, &reg, efx->type->evq_ptr_tbl_base,
+ channel->channel);
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ efx_writeo_table(efx, &reg, FR_BZ_TIMER_TBL, channel->channel);
+
+ /* Unpin event queue */
+ efx_fini_special_buffer(efx, &channel->eventq);
+}
+
+/* Free buffers backing event queue */
+void efx_nic_remove_eventq(struct efx_channel *channel)
+{
+ efx_free_special_buffer(channel->efx, &channel->eventq);
+}
+
+
+void efx_nic_generate_test_event(struct efx_channel *channel)
+{
+ unsigned int magic = EFX_CHANNEL_MAGIC_TEST(channel);
+ efx_qword_t test_event;
+
+ EFX_POPULATE_QWORD_2(test_event, FSF_AZ_EV_CODE,
+ FSE_AZ_EV_CODE_DRV_GEN_EV,
+ FSF_AZ_DRV_GEN_EV_MAGIC, magic);
+ efx_generate_event(channel, &test_event);
+}
+
+void efx_nic_generate_fill_event(struct efx_channel *channel)
+{
+ unsigned int magic = EFX_CHANNEL_MAGIC_FILL(channel);
+ efx_qword_t test_event;
+
+ EFX_POPULATE_QWORD_2(test_event, FSF_AZ_EV_CODE,
+ FSE_AZ_EV_CODE_DRV_GEN_EV,
+ FSF_AZ_DRV_GEN_EV_MAGIC, magic);
+ efx_generate_event(channel, &test_event);
+}
+
+/**************************************************************************
+ *
+ * Flush handling
+ *
+ **************************************************************************/
+
+
+static void efx_poll_flush_events(struct efx_nic *efx)
+{
+ struct efx_channel *channel = efx_get_channel(efx, 0);
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ unsigned int read_ptr = channel->eventq_read_ptr;
+ unsigned int end_ptr = read_ptr + channel->eventq_mask - 1;
+
+ do {
+ efx_qword_t *event = efx_event(channel, read_ptr);
+ int ev_code, ev_sub_code, ev_queue;
+ bool ev_failed;
+
+ if (!efx_event_present(event))
+ break;
+
+ ev_code = EFX_QWORD_FIELD(*event, FSF_AZ_EV_CODE);
+ ev_sub_code = EFX_QWORD_FIELD(*event,
+ FSF_AZ_DRIVER_EV_SUBCODE);
+ if (ev_code == FSE_AZ_EV_CODE_DRIVER_EV &&
+ ev_sub_code == FSE_AZ_TX_DESCQ_FLS_DONE_EV) {
+ ev_queue = EFX_QWORD_FIELD(*event,
+ FSF_AZ_DRIVER_EV_SUBDATA);
+ if (ev_queue < EFX_TXQ_TYPES * efx->n_tx_channels) {
+ tx_queue = efx_get_tx_queue(
+ efx, ev_queue / EFX_TXQ_TYPES,
+ ev_queue % EFX_TXQ_TYPES);
+ tx_queue->flushed = FLUSH_DONE;
+ }
+ } else if (ev_code == FSE_AZ_EV_CODE_DRIVER_EV &&
+ ev_sub_code == FSE_AZ_RX_DESCQ_FLS_DONE_EV) {
+ ev_queue = EFX_QWORD_FIELD(
+ *event, FSF_AZ_DRIVER_EV_RX_DESCQ_ID);
+ ev_failed = EFX_QWORD_FIELD(
+ *event, FSF_AZ_DRIVER_EV_RX_FLUSH_FAIL);
+ if (ev_queue < efx->n_rx_channels) {
+ rx_queue = efx_get_rx_queue(efx, ev_queue);
+ rx_queue->flushed =
+ ev_failed ? FLUSH_FAILED : FLUSH_DONE;
+ }
+ }
+
+ /* We're about to destroy the queue anyway, so
+ * it's ok to throw away every non-flush event */
+ EFX_SET_QWORD(*event);
+
+ ++read_ptr;
+ } while (read_ptr != end_ptr);
+
+ channel->eventq_read_ptr = read_ptr;
+}
+
+/* Handle tx and rx flushes at the same time, since they run in
+ * parallel in the hardware and there's no reason for us to
+ * serialise them */
+int efx_nic_flush_queues(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ struct efx_rx_queue *rx_queue;
+ struct efx_tx_queue *tx_queue;
+ int i, tx_pending, rx_pending;
+
+ /* If necessary prepare the hardware for flushing */
+ efx->type->prepare_flush(efx);
+
+ /* Flush all tx queues in parallel */
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_possible_channel_tx_queue(tx_queue, channel) {
+ if (tx_queue->initialised)
+ efx_flush_tx_queue(tx_queue);
+ }
+ }
+
+ /* The hardware supports four concurrent rx flushes, each of which may
+ * need to be retried if there is an outstanding descriptor fetch */
+ for (i = 0; i < EFX_FLUSH_POLL_COUNT; ++i) {
+ rx_pending = tx_pending = 0;
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_rx_queue(rx_queue, channel) {
+ if (rx_queue->flushed == FLUSH_PENDING)
+ ++rx_pending;
+ }
+ }
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_rx_queue(rx_queue, channel) {
+ if (rx_pending == EFX_RX_FLUSH_COUNT)
+ break;
+ if (rx_queue->flushed == FLUSH_FAILED ||
+ rx_queue->flushed == FLUSH_NONE) {
+ efx_flush_rx_queue(rx_queue);
+ ++rx_pending;
+ }
+ }
+ efx_for_each_possible_channel_tx_queue(tx_queue, channel) {
+ if (tx_queue->initialised &&
+ tx_queue->flushed != FLUSH_DONE)
+ ++tx_pending;
+ }
+ }
+
+ if (rx_pending == 0 && tx_pending == 0)
+ return 0;
+
+ msleep(EFX_FLUSH_INTERVAL);
+ efx_poll_flush_events(efx);
+ }
+
+ /* Mark the queues as all flushed. We're going to return failure
+ * leading to a reset, or fake up success anyway */
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_possible_channel_tx_queue(tx_queue, channel) {
+ if (tx_queue->initialised &&
+ tx_queue->flushed != FLUSH_DONE)
+ netif_err(efx, hw, efx->net_dev,
+ "tx queue %d flush command timed out\n",
+ tx_queue->queue);
+ tx_queue->flushed = FLUSH_DONE;
+ }
+ efx_for_each_channel_rx_queue(rx_queue, channel) {
+ if (rx_queue->flushed != FLUSH_DONE)
+ netif_err(efx, hw, efx->net_dev,
+ "rx queue %d flush command timed out\n",
+ efx_rx_queue_index(rx_queue));
+ rx_queue->flushed = FLUSH_DONE;
+ }
+ }
+
+ return -ETIMEDOUT;
+}
+
+/**************************************************************************
+ *
+ * Hardware interrupts
+ * The hardware interrupt handler does very little work; all the event
+ * queue processing is carried out by per-channel tasklets.
+ *
+ **************************************************************************/
+
+/* Enable/disable/generate interrupts */
+static inline void efx_nic_interrupts(struct efx_nic *efx,
+ bool enabled, bool force)
+{
+ efx_oword_t int_en_reg_ker;
+
+ EFX_POPULATE_OWORD_3(int_en_reg_ker,
+ FRF_AZ_KER_INT_LEVE_SEL, efx->fatal_irq_level,
+ FRF_AZ_KER_INT_KER, force,
+ FRF_AZ_DRV_INT_EN_KER, enabled);
+ efx_writeo(efx, &int_en_reg_ker, FR_AZ_INT_EN_KER);
+}
+
+void efx_nic_enable_interrupts(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+
+ EFX_ZERO_OWORD(*((efx_oword_t *) efx->irq_status.addr));
+ wmb(); /* Ensure interrupt vector is clear before interrupts enabled */
+
+ /* Enable interrupts */
+ efx_nic_interrupts(efx, true, false);
+
+ /* Force processing of all the channels to get the EVQ RPTRs up to
+ date */
+ efx_for_each_channel(channel, efx)
+ efx_schedule_channel(channel);
+}
+
+void efx_nic_disable_interrupts(struct efx_nic *efx)
+{
+ /* Disable interrupts */
+ efx_nic_interrupts(efx, false, false);
+}
+
+/* Generate a test interrupt
+ * Interrupt must already have been enabled, otherwise nasty things
+ * may happen.
+ */
+void efx_nic_generate_interrupt(struct efx_nic *efx)
+{
+ efx_nic_interrupts(efx, true, true);
+}
+
+/* Process a fatal interrupt
+ * Disable bus mastering ASAP and schedule a reset
+ */
+irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx)
+{
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t *int_ker = efx->irq_status.addr;
+ efx_oword_t fatal_intr;
+ int error, mem_perr;
+
+ efx_reado(efx, &fatal_intr, FR_AZ_FATAL_INTR_KER);
+ error = EFX_OWORD_FIELD(fatal_intr, FRF_AZ_FATAL_INTR);
+
+ netif_err(efx, hw, efx->net_dev, "SYSTEM ERROR "EFX_OWORD_FMT" status "
+ EFX_OWORD_FMT ": %s\n", EFX_OWORD_VAL(*int_ker),
+ EFX_OWORD_VAL(fatal_intr),
+ error ? "disabling bus mastering" : "no recognised error");
+
+ /* If this is a memory parity error dump which blocks are offending */
+ mem_perr = (EFX_OWORD_FIELD(fatal_intr, FRF_AZ_MEM_PERR_INT_KER) ||
+ EFX_OWORD_FIELD(fatal_intr, FRF_AZ_SRM_PERR_INT_KER));
+ if (mem_perr) {
+ efx_oword_t reg;
+ efx_reado(efx, &reg, FR_AZ_MEM_STAT);
+ netif_err(efx, hw, efx->net_dev,
+ "SYSTEM ERROR: memory parity error "EFX_OWORD_FMT"\n",
+ EFX_OWORD_VAL(reg));
+ }
+
+ /* Disable both devices */
+ pci_clear_master(efx->pci_dev);
+ if (efx_nic_is_dual_func(efx))
+ pci_clear_master(nic_data->pci_dev2);
+ efx_nic_disable_interrupts(efx);
+
+ /* Count errors and reset or disable the NIC accordingly */
+ if (efx->int_error_count == 0 ||
+ time_after(jiffies, efx->int_error_expire)) {
+ efx->int_error_count = 0;
+ efx->int_error_expire =
+ jiffies + EFX_INT_ERROR_EXPIRE * HZ;
+ }
+ if (++efx->int_error_count < EFX_MAX_INT_ERRORS) {
+ netif_err(efx, hw, efx->net_dev,
+ "SYSTEM ERROR - reset scheduled\n");
+ efx_schedule_reset(efx, RESET_TYPE_INT_ERROR);
+ } else {
+ netif_err(efx, hw, efx->net_dev,
+ "SYSTEM ERROR - max number of errors seen."
+ "NIC will be disabled\n");
+ efx_schedule_reset(efx, RESET_TYPE_DISABLE);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/* Handle a legacy interrupt
+ * Acknowledges the interrupt and schedule event queue processing.
+ */
+static irqreturn_t efx_legacy_interrupt(int irq, void *dev_id)
+{
+ struct efx_nic *efx = dev_id;
+ efx_oword_t *int_ker = efx->irq_status.addr;
+ irqreturn_t result = IRQ_NONE;
+ struct efx_channel *channel;
+ efx_dword_t reg;
+ u32 queues;
+ int syserr;
+
+ /* Could this be ours? If interrupts are disabled then the
+ * channel state may not be valid.
+ */
+ if (!efx->legacy_irq_enabled)
+ return result;
+
+ /* Read the ISR which also ACKs the interrupts */
+ efx_readd(efx, &reg, FR_BZ_INT_ISR0);
+ queues = EFX_EXTRACT_DWORD(reg, 0, 31);
+
+ /* Check to see if we have a serious error condition */
+ if (queues & (1U << efx->fatal_irq_level)) {
+ syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT);
+ if (unlikely(syserr))
+ return efx_nic_fatal_interrupt(efx);
+ }
+
+ if (queues != 0) {
+ if (EFX_WORKAROUND_15783(efx))
+ efx->irq_zero_count = 0;
+
+ /* Schedule processing of any interrupting queues */
+ efx_for_each_channel(channel, efx) {
+ if (queues & 1)
+ efx_schedule_channel(channel);
+ queues >>= 1;
+ }
+ result = IRQ_HANDLED;
+
+ } else if (EFX_WORKAROUND_15783(efx)) {
+ efx_qword_t *event;
+
+ /* We can't return IRQ_HANDLED more than once on seeing ISR=0
+ * because this might be a shared interrupt. */
+ if (efx->irq_zero_count++ == 0)
+ result = IRQ_HANDLED;
+
+ /* Ensure we schedule or rearm all event queues */
+ efx_for_each_channel(channel, efx) {
+ event = efx_event(channel, channel->eventq_read_ptr);
+ if (efx_event_present(event))
+ efx_schedule_channel(channel);
+ else
+ efx_nic_eventq_read_ack(channel);
+ }
+ }
+
+ if (result == IRQ_HANDLED) {
+ efx->last_irq_cpu = raw_smp_processor_id();
+ netif_vdbg(efx, intr, efx->net_dev,
+ "IRQ %d on CPU %d status " EFX_DWORD_FMT "\n",
+ irq, raw_smp_processor_id(), EFX_DWORD_VAL(reg));
+ }
+
+ return result;
+}
+
+/* Handle an MSI interrupt
+ *
+ * Handle an MSI hardware interrupt. This routine schedules event
+ * queue processing. No interrupt acknowledgement cycle is necessary.
+ * Also, we never need to check that the interrupt is for us, since
+ * MSI interrupts cannot be shared.
+ */
+static irqreturn_t efx_msi_interrupt(int irq, void *dev_id)
+{
+ struct efx_channel *channel = *(struct efx_channel **)dev_id;
+ struct efx_nic *efx = channel->efx;
+ efx_oword_t *int_ker = efx->irq_status.addr;
+ int syserr;
+
+ efx->last_irq_cpu = raw_smp_processor_id();
+ netif_vdbg(efx, intr, efx->net_dev,
+ "IRQ %d on CPU %d status " EFX_OWORD_FMT "\n",
+ irq, raw_smp_processor_id(), EFX_OWORD_VAL(*int_ker));
+
+ /* Check to see if we have a serious error condition */
+ if (channel->channel == efx->fatal_irq_level) {
+ syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT);
+ if (unlikely(syserr))
+ return efx_nic_fatal_interrupt(efx);
+ }
+
+ /* Schedule processing of the channel */
+ efx_schedule_channel(channel);
+
+ return IRQ_HANDLED;
+}
+
+
+/* Setup RSS indirection table.
+ * This maps from the hash value of the packet to RXQ
+ */
+void efx_nic_push_rx_indir_table(struct efx_nic *efx)
+{
+ size_t i = 0;
+ efx_dword_t dword;
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return;
+
+ BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) !=
+ FR_BZ_RX_INDIRECTION_TBL_ROWS);
+
+ for (i = 0; i < FR_BZ_RX_INDIRECTION_TBL_ROWS; i++) {
+ EFX_POPULATE_DWORD_1(dword, FRF_BZ_IT_QUEUE,
+ efx->rx_indir_table[i]);
+ efx_writed_table(efx, &dword, FR_BZ_RX_INDIRECTION_TBL, i);
+ }
+}
+
+/* Hook interrupt handler(s)
+ * Try MSI and then legacy interrupts.
+ */
+int efx_nic_init_interrupt(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ int rc;
+
+ if (!EFX_INT_MODE_USE_MSI(efx)) {
+ irq_handler_t handler;
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
+ handler = efx_legacy_interrupt;
+ else
+ handler = falcon_legacy_interrupt_a1;
+
+ rc = request_irq(efx->legacy_irq, handler, IRQF_SHARED,
+ efx->name, efx);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed to hook legacy IRQ %d\n",
+ efx->pci_dev->irq);
+ goto fail1;
+ }
+ return 0;
+ }
+
+ /* Hook MSI or MSI-X interrupt */
+ efx_for_each_channel(channel, efx) {
+ rc = request_irq(channel->irq, efx_msi_interrupt,
+ IRQF_PROBE_SHARED, /* Not shared */
+ efx->channel_name[channel->channel],
+ &efx->channel[channel->channel]);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "failed to hook IRQ %d\n", channel->irq);
+ goto fail2;
+ }
+ }
+
+ return 0;
+
+ fail2:
+ efx_for_each_channel(channel, efx)
+ free_irq(channel->irq, &efx->channel[channel->channel]);
+ fail1:
+ return rc;
+}
+
+void efx_nic_fini_interrupt(struct efx_nic *efx)
+{
+ struct efx_channel *channel;
+ efx_oword_t reg;
+
+ /* Disable MSI/MSI-X interrupts */
+ efx_for_each_channel(channel, efx) {
+ if (channel->irq)
+ free_irq(channel->irq, &efx->channel[channel->channel]);
+ }
+
+ /* ACK legacy interrupt */
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
+ efx_reado(efx, &reg, FR_BZ_INT_ISR0);
+ else
+ falcon_irq_ack_a1(efx);
+
+ /* Disable legacy interrupt */
+ if (efx->legacy_irq)
+ free_irq(efx->legacy_irq, efx);
+}
+
+u32 efx_nic_fpga_ver(struct efx_nic *efx)
+{
+ efx_oword_t altera_build;
+ efx_reado(efx, &altera_build, FR_AZ_ALTERA_BUILD);
+ return EFX_OWORD_FIELD(altera_build, FRF_AZ_ALTERA_BUILD_VER);
+}
+
+void efx_nic_init_common(struct efx_nic *efx)
+{
+ efx_oword_t temp;
+
+ /* Set positions of descriptor caches in SRAM. */
+ EFX_POPULATE_OWORD_1(temp, FRF_AZ_SRM_TX_DC_BASE_ADR,
+ efx->type->tx_dc_base / 8);
+ efx_writeo(efx, &temp, FR_AZ_SRM_TX_DC_CFG);
+ EFX_POPULATE_OWORD_1(temp, FRF_AZ_SRM_RX_DC_BASE_ADR,
+ efx->type->rx_dc_base / 8);
+ efx_writeo(efx, &temp, FR_AZ_SRM_RX_DC_CFG);
+
+ /* Set TX descriptor cache size. */
+ BUILD_BUG_ON(TX_DC_ENTRIES != (8 << TX_DC_ENTRIES_ORDER));
+ EFX_POPULATE_OWORD_1(temp, FRF_AZ_TX_DC_SIZE, TX_DC_ENTRIES_ORDER);
+ efx_writeo(efx, &temp, FR_AZ_TX_DC_CFG);
+
+ /* Set RX descriptor cache size. Set low watermark to size-8, as
+ * this allows most efficient prefetching.
+ */
+ BUILD_BUG_ON(RX_DC_ENTRIES != (8 << RX_DC_ENTRIES_ORDER));
+ EFX_POPULATE_OWORD_1(temp, FRF_AZ_RX_DC_SIZE, RX_DC_ENTRIES_ORDER);
+ efx_writeo(efx, &temp, FR_AZ_RX_DC_CFG);
+ EFX_POPULATE_OWORD_1(temp, FRF_AZ_RX_DC_PF_LWM, RX_DC_ENTRIES - 8);
+ efx_writeo(efx, &temp, FR_AZ_RX_DC_PF_WM);
+
+ /* Program INT_KER address */
+ EFX_POPULATE_OWORD_2(temp,
+ FRF_AZ_NORM_INT_VEC_DIS_KER,
+ EFX_INT_MODE_USE_MSI(efx),
+ FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr);
+ efx_writeo(efx, &temp, FR_AZ_INT_ADR_KER);
+
+ if (EFX_WORKAROUND_17213(efx) && !EFX_INT_MODE_USE_MSI(efx))
+ /* Use an interrupt level unused by event queues */
+ efx->fatal_irq_level = 0x1f;
+ else
+ /* Use a valid MSI-X vector */
+ efx->fatal_irq_level = 0;
+
+ /* Enable all the genuinely fatal interrupts. (They are still
+ * masked by the overall interrupt mask, controlled by
+ * falcon_interrupts()).
+ *
+ * Note: All other fatal interrupts are enabled
+ */
+ EFX_POPULATE_OWORD_3(temp,
+ FRF_AZ_ILL_ADR_INT_KER_EN, 1,
+ FRF_AZ_RBUF_OWN_INT_KER_EN, 1,
+ FRF_AZ_TBUF_OWN_INT_KER_EN, 1);
+ if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+ EFX_SET_OWORD_FIELD(temp, FRF_CZ_SRAM_PERR_INT_P_KER_EN, 1);
+ EFX_INVERT_OWORD(temp);
+ efx_writeo(efx, &temp, FR_AZ_FATAL_INTR_KER);
+
+ efx_nic_push_rx_indir_table(efx);
+
+ /* Disable the ugly timer-based TX DMA backoff and allow TX DMA to be
+ * controlled by the RX FIFO fill level. Set arbitration to one pkt/Q.
+ */
+ efx_reado(efx, &temp, FR_AZ_TX_RESERVED);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_RX_SPACER, 0xfe);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_RX_SPACER_EN, 1);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_ONE_PKT_PER_Q, 1);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_PUSH_EN, 1);
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_DIS_NON_IP_EV, 1);
+ /* Enable SW_EV to inherit in char driver - assume harmless here */
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_SOFT_EVT_EN, 1);
+ /* Prefetch threshold 2 => fetch when descriptor cache half empty */
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_PREF_THRESHOLD, 2);
+ /* Disable hardware watchdog which can misfire */
+ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_PREF_WD_TMR, 0x3fffff);
+ /* Squash TX of packets of 16 bytes or less */
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
+ EFX_SET_OWORD_FIELD(temp, FRF_BZ_TX_FLUSH_MIN_LEN_EN, 1);
+ efx_writeo(efx, &temp, FR_AZ_TX_RESERVED);
+
+ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
+ EFX_POPULATE_OWORD_4(temp,
+ /* Default values */
+ FRF_BZ_TX_PACE_SB_NOT_AF, 0x15,
+ FRF_BZ_TX_PACE_SB_AF, 0xb,
+ FRF_BZ_TX_PACE_FB_BASE, 0,
+ /* Allow large pace values in the
+ * fast bin. */
+ FRF_BZ_TX_PACE_BIN_TH,
+ FFE_BZ_TX_PACE_RESERVED);
+ efx_writeo(efx, &temp, FR_BZ_TX_PACE);
+ }
+}
+
+/* Register dump */
+
+#define REGISTER_REVISION_A 1
+#define REGISTER_REVISION_B 2
+#define REGISTER_REVISION_C 3
+#define REGISTER_REVISION_Z 3 /* latest revision */
+
+struct efx_nic_reg {
+ u32 offset:24;
+ u32 min_revision:2, max_revision:2;
+};
+
+#define REGISTER(name, min_rev, max_rev) { \
+ FR_ ## min_rev ## max_rev ## _ ## name, \
+ REGISTER_REVISION_ ## min_rev, REGISTER_REVISION_ ## max_rev \
+}
+#define REGISTER_AA(name) REGISTER(name, A, A)
+#define REGISTER_AB(name) REGISTER(name, A, B)
+#define REGISTER_AZ(name) REGISTER(name, A, Z)
+#define REGISTER_BB(name) REGISTER(name, B, B)
+#define REGISTER_BZ(name) REGISTER(name, B, Z)
+#define REGISTER_CZ(name) REGISTER(name, C, Z)
+
+static const struct efx_nic_reg efx_nic_regs[] = {
+ REGISTER_AZ(ADR_REGION),
+ REGISTER_AZ(INT_EN_KER),
+ REGISTER_BZ(INT_EN_CHAR),
+ REGISTER_AZ(INT_ADR_KER),
+ REGISTER_BZ(INT_ADR_CHAR),
+ /* INT_ACK_KER is WO */
+ /* INT_ISR0 is RC */
+ REGISTER_AZ(HW_INIT),
+ REGISTER_CZ(USR_EV_CFG),
+ REGISTER_AB(EE_SPI_HCMD),
+ REGISTER_AB(EE_SPI_HADR),
+ REGISTER_AB(EE_SPI_HDATA),
+ REGISTER_AB(EE_BASE_PAGE),
+ REGISTER_AB(EE_VPD_CFG0),
+ /* EE_VPD_SW_CNTL and EE_VPD_SW_DATA are not used */
+ /* PMBX_DBG_IADDR and PBMX_DBG_IDATA are indirect */
+ /* PCIE_CORE_INDIRECT is indirect */
+ REGISTER_AB(NIC_STAT),
+ REGISTER_AB(GPIO_CTL),
+ REGISTER_AB(GLB_CTL),
+ /* FATAL_INTR_KER and FATAL_INTR_CHAR are partly RC */
+ REGISTER_BZ(DP_CTRL),
+ REGISTER_AZ(MEM_STAT),
+ REGISTER_AZ(CS_DEBUG),
+ REGISTER_AZ(ALTERA_BUILD),
+ REGISTER_AZ(CSR_SPARE),
+ REGISTER_AB(PCIE_SD_CTL0123),
+ REGISTER_AB(PCIE_SD_CTL45),
+ REGISTER_AB(PCIE_PCS_CTL_STAT),
+ /* DEBUG_DATA_OUT is not used */
+ /* DRV_EV is WO */
+ REGISTER_AZ(EVQ_CTL),
+ REGISTER_AZ(EVQ_CNT1),
+ REGISTER_AZ(EVQ_CNT2),
+ REGISTER_AZ(BUF_TBL_CFG),
+ REGISTER_AZ(SRM_RX_DC_CFG),
+ REGISTER_AZ(SRM_TX_DC_CFG),
+ REGISTER_AZ(SRM_CFG),
+ /* BUF_TBL_UPD is WO */
+ REGISTER_AZ(SRM_UPD_EVQ),
+ REGISTER_AZ(SRAM_PARITY),
+ REGISTER_AZ(RX_CFG),
+ REGISTER_BZ(RX_FILTER_CTL),
+ /* RX_FLUSH_DESCQ is WO */
+ REGISTER_AZ(RX_DC_CFG),
+ REGISTER_AZ(RX_DC_PF_WM),
+ REGISTER_BZ(RX_RSS_TKEY),
+ /* RX_NODESC_DROP is RC */
+ REGISTER_AA(RX_SELF_RST),
+ /* RX_DEBUG, RX_PUSH_DROP are not used */
+ REGISTER_CZ(RX_RSS_IPV6_REG1),
+ REGISTER_CZ(RX_RSS_IPV6_REG2),
+ REGISTER_CZ(RX_RSS_IPV6_REG3),
+ /* TX_FLUSH_DESCQ is WO */
+ REGISTER_AZ(TX_DC_CFG),
+ REGISTER_AA(TX_CHKSM_CFG),
+ REGISTER_AZ(TX_CFG),
+ /* TX_PUSH_DROP is not used */
+ REGISTER_AZ(TX_RESERVED),
+ REGISTER_BZ(TX_PACE),
+ /* TX_PACE_DROP_QID is RC */
+ REGISTER_BB(TX_VLAN),
+ REGISTER_BZ(TX_IPFIL_PORTEN),
+ REGISTER_AB(MD_TXD),
+ REGISTER_AB(MD_RXD),
+ REGISTER_AB(MD_CS),
+ REGISTER_AB(MD_PHY_ADR),
+ REGISTER_AB(MD_ID),
+ /* MD_STAT is RC */
+ REGISTER_AB(MAC_STAT_DMA),
+ REGISTER_AB(MAC_CTRL),
+ REGISTER_BB(GEN_MODE),
+ REGISTER_AB(MAC_MC_HASH_REG0),
+ REGISTER_AB(MAC_MC_HASH_REG1),
+ REGISTER_AB(GM_CFG1),
+ REGISTER_AB(GM_CFG2),
+ /* GM_IPG and GM_HD are not used */
+ REGISTER_AB(GM_MAX_FLEN),
+ /* GM_TEST is not used */
+ REGISTER_AB(GM_ADR1),
+ REGISTER_AB(GM_ADR2),
+ REGISTER_AB(GMF_CFG0),
+ REGISTER_AB(GMF_CFG1),
+ REGISTER_AB(GMF_CFG2),
+ REGISTER_AB(GMF_CFG3),
+ REGISTER_AB(GMF_CFG4),
+ REGISTER_AB(GMF_CFG5),
+ REGISTER_BB(TX_SRC_MAC_CTL),
+ REGISTER_AB(XM_ADR_LO),
+ REGISTER_AB(XM_ADR_HI),
+ REGISTER_AB(XM_GLB_CFG),
+ REGISTER_AB(XM_TX_CFG),
+ REGISTER_AB(XM_RX_CFG),
+ REGISTER_AB(XM_MGT_INT_MASK),
+ REGISTER_AB(XM_FC),
+ REGISTER_AB(XM_PAUSE_TIME),
+ REGISTER_AB(XM_TX_PARAM),
+ REGISTER_AB(XM_RX_PARAM),
+ /* XM_MGT_INT_MSK (note no 'A') is RC */
+ REGISTER_AB(XX_PWR_RST),
+ REGISTER_AB(XX_SD_CTL),
+ REGISTER_AB(XX_TXDRV_CTL),
+ /* XX_PRBS_CTL, XX_PRBS_CHK and XX_PRBS_ERR are not used */
+ /* XX_CORE_STAT is partly RC */
+};
+
+struct efx_nic_reg_table {
+ u32 offset:24;
+ u32 min_revision:2, max_revision:2;
+ u32 step:6, rows:21;
+};
+
+#define REGISTER_TABLE_DIMENSIONS(_, offset, min_rev, max_rev, step, rows) { \
+ offset, \
+ REGISTER_REVISION_ ## min_rev, REGISTER_REVISION_ ## max_rev, \
+ step, rows \
+}
+#define REGISTER_TABLE(name, min_rev, max_rev) \
+ REGISTER_TABLE_DIMENSIONS( \
+ name, FR_ ## min_rev ## max_rev ## _ ## name, \
+ min_rev, max_rev, \
+ FR_ ## min_rev ## max_rev ## _ ## name ## _STEP, \
+ FR_ ## min_rev ## max_rev ## _ ## name ## _ROWS)
+#define REGISTER_TABLE_AA(name) REGISTER_TABLE(name, A, A)
+#define REGISTER_TABLE_AZ(name) REGISTER_TABLE(name, A, Z)
+#define REGISTER_TABLE_BB(name) REGISTER_TABLE(name, B, B)
+#define REGISTER_TABLE_BZ(name) REGISTER_TABLE(name, B, Z)
+#define REGISTER_TABLE_BB_CZ(name) \
+ REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, B, B, \
+ FR_BZ_ ## name ## _STEP, \
+ FR_BB_ ## name ## _ROWS), \
+ REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, C, Z, \
+ FR_BZ_ ## name ## _STEP, \
+ FR_CZ_ ## name ## _ROWS)
+#define REGISTER_TABLE_CZ(name) REGISTER_TABLE(name, C, Z)
+
+static const struct efx_nic_reg_table efx_nic_reg_tables[] = {
+ /* DRIVER is not used */
+ /* EVQ_RPTR, TIMER_COMMAND, USR_EV and {RX,TX}_DESC_UPD are WO */
+ REGISTER_TABLE_BB(TX_IPFIL_TBL),
+ REGISTER_TABLE_BB(TX_SRC_MAC_TBL),
+ REGISTER_TABLE_AA(RX_DESC_PTR_TBL_KER),
+ REGISTER_TABLE_BB_CZ(RX_DESC_PTR_TBL),
+ REGISTER_TABLE_AA(TX_DESC_PTR_TBL_KER),
+ REGISTER_TABLE_BB_CZ(TX_DESC_PTR_TBL),
+ REGISTER_TABLE_AA(EVQ_PTR_TBL_KER),
+ REGISTER_TABLE_BB_CZ(EVQ_PTR_TBL),
+ /* We can't reasonably read all of the buffer table (up to 8MB!).
+ * However this driver will only use a few entries. Reading
+ * 1K entries allows for some expansion of queue count and
+ * size before we need to change the version. */
+ REGISTER_TABLE_DIMENSIONS(BUF_FULL_TBL_KER, FR_AA_BUF_FULL_TBL_KER,
+ A, A, 8, 1024),
+ REGISTER_TABLE_DIMENSIONS(BUF_FULL_TBL, FR_BZ_BUF_FULL_TBL,
+ B, Z, 8, 1024),
+ REGISTER_TABLE_CZ(RX_MAC_FILTER_TBL0),
+ REGISTER_TABLE_BB_CZ(TIMER_TBL),
+ REGISTER_TABLE_BB_CZ(TX_PACE_TBL),
+ REGISTER_TABLE_BZ(RX_INDIRECTION_TBL),
+ /* TX_FILTER_TBL0 is huge and not used by this driver */
+ REGISTER_TABLE_CZ(TX_MAC_FILTER_TBL0),
+ REGISTER_TABLE_CZ(MC_TREG_SMEM),
+ /* MSIX_PBA_TABLE is not mapped */
+ /* SRM_DBG is not mapped (and is redundant with BUF_FLL_TBL) */
+ REGISTER_TABLE_BZ(RX_FILTER_TBL0),
+};
+
+size_t efx_nic_get_regs_len(struct efx_nic *efx)
+{
+ const struct efx_nic_reg *reg;
+ const struct efx_nic_reg_table *table;
+ size_t len = 0;
+
+ for (reg = efx_nic_regs;
+ reg < efx_nic_regs + ARRAY_SIZE(efx_nic_regs);
+ reg++)
+ if (efx->type->revision >= reg->min_revision &&
+ efx->type->revision <= reg->max_revision)
+ len += sizeof(efx_oword_t);
+
+ for (table = efx_nic_reg_tables;
+ table < efx_nic_reg_tables + ARRAY_SIZE(efx_nic_reg_tables);
+ table++)
+ if (efx->type->revision >= table->min_revision &&
+ efx->type->revision <= table->max_revision)
+ len += table->rows * min_t(size_t, table->step, 16);
+
+ return len;
+}
+
+void efx_nic_get_regs(struct efx_nic *efx, void *buf)
+{
+ const struct efx_nic_reg *reg;
+ const struct efx_nic_reg_table *table;
+
+ for (reg = efx_nic_regs;
+ reg < efx_nic_regs + ARRAY_SIZE(efx_nic_regs);
+ reg++) {
+ if (efx->type->revision >= reg->min_revision &&
+ efx->type->revision <= reg->max_revision) {
+ efx_reado(efx, (efx_oword_t *)buf, reg->offset);
+ buf += sizeof(efx_oword_t);
+ }
+ }
+
+ for (table = efx_nic_reg_tables;
+ table < efx_nic_reg_tables + ARRAY_SIZE(efx_nic_reg_tables);
+ table++) {
+ size_t size, i;
+
+ if (!(efx->type->revision >= table->min_revision &&
+ efx->type->revision <= table->max_revision))
+ continue;
+
+ size = min_t(size_t, table->step, 16);
+
+ if (table->offset >= efx->type->mem_map_size) {
+ /* No longer mapped; return dummy data */
+ memcpy(buf, "\xde\xc0\xad\xde", 4);
+ buf += table->rows * size;
+ continue;
+ }
+
+ for (i = 0; i < table->rows; i++) {
+ switch (table->step) {
+ case 4: /* 32-bit register or SRAM */
+ efx_readd_table(efx, buf, table->offset, i);
+ break;
+ case 8: /* 64-bit SRAM */
+ efx_sram_readq(efx,
+ efx->membase + table->offset,
+ buf, i);
+ break;
+ case 16: /* 128-bit register */
+ efx_reado_table(efx, buf, table->offset, i);
+ break;
+ case 32: /* 128-bit register, interleaved */
+ efx_reado_table(efx, buf, table->offset, 2 * i);
+ break;
+ default:
+ WARN_ON(1);
+ return;
+ }
+ buf += size;
+ }
+ }
+}
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
new file mode 100644
index 000000000000..4bd1f2839dfe
--- /dev/null
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -0,0 +1,273 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_NIC_H
+#define EFX_NIC_H
+
+#include <linux/i2c-algo-bit.h>
+#include "net_driver.h"
+#include "efx.h"
+#include "mcdi.h"
+#include "spi.h"
+
+/*
+ * Falcon hardware control
+ */
+
+enum {
+ EFX_REV_FALCON_A0 = 0,
+ EFX_REV_FALCON_A1 = 1,
+ EFX_REV_FALCON_B0 = 2,
+ EFX_REV_SIENA_A0 = 3,
+};
+
+static inline int efx_nic_rev(struct efx_nic *efx)
+{
+ return efx->type->revision;
+}
+
+extern u32 efx_nic_fpga_ver(struct efx_nic *efx);
+
+static inline bool efx_nic_has_mc(struct efx_nic *efx)
+{
+ return efx_nic_rev(efx) >= EFX_REV_SIENA_A0;
+}
+/* NIC has two interlinked PCI functions for the same port. */
+static inline bool efx_nic_is_dual_func(struct efx_nic *efx)
+{
+ return efx_nic_rev(efx) < EFX_REV_FALCON_B0;
+}
+
+enum {
+ PHY_TYPE_NONE = 0,
+ PHY_TYPE_TXC43128 = 1,
+ PHY_TYPE_88E1111 = 2,
+ PHY_TYPE_SFX7101 = 3,
+ PHY_TYPE_QT2022C2 = 4,
+ PHY_TYPE_PM8358 = 6,
+ PHY_TYPE_SFT9001A = 8,
+ PHY_TYPE_QT2025C = 9,
+ PHY_TYPE_SFT9001B = 10,
+};
+
+#define FALCON_XMAC_LOOPBACKS \
+ ((1 << LOOPBACK_XGMII) | \
+ (1 << LOOPBACK_XGXS) | \
+ (1 << LOOPBACK_XAUI))
+
+#define FALCON_GMAC_LOOPBACKS \
+ (1 << LOOPBACK_GMAC)
+
+/**
+ * struct falcon_board_type - board operations and type information
+ * @id: Board type id, as found in NVRAM
+ * @ref_model: Model number of Solarflare reference design
+ * @gen_type: Generic board type description
+ * @init: Allocate resources and initialise peripheral hardware
+ * @init_phy: Do board-specific PHY initialisation
+ * @fini: Shut down hardware and free resources
+ * @set_id_led: Set state of identifying LED or revert to automatic function
+ * @monitor: Board-specific health check function
+ */
+struct falcon_board_type {
+ u8 id;
+ const char *ref_model;
+ const char *gen_type;
+ int (*init) (struct efx_nic *nic);
+ void (*init_phy) (struct efx_nic *efx);
+ void (*fini) (struct efx_nic *nic);
+ void (*set_id_led) (struct efx_nic *efx, enum efx_led_mode mode);
+ int (*monitor) (struct efx_nic *nic);
+};
+
+/**
+ * struct falcon_board - board information
+ * @type: Type of board
+ * @major: Major rev. ('A', 'B' ...)
+ * @minor: Minor rev. (0, 1, ...)
+ * @i2c_adap: I2C adapter for on-board peripherals
+ * @i2c_data: Data for bit-banging algorithm
+ * @hwmon_client: I2C client for hardware monitor
+ * @ioexp_client: I2C client for power/port control
+ */
+struct falcon_board {
+ const struct falcon_board_type *type;
+ int major;
+ int minor;
+ struct i2c_adapter i2c_adap;
+ struct i2c_algo_bit_data i2c_data;
+ struct i2c_client *hwmon_client, *ioexp_client;
+};
+
+/**
+ * struct falcon_nic_data - Falcon NIC state
+ * @pci_dev2: Secondary function of Falcon A
+ * @board: Board state and functions
+ * @stats_disable_count: Nest count for disabling statistics fetches
+ * @stats_pending: Is there a pending DMA of MAC statistics.
+ * @stats_timer: A timer for regularly fetching MAC statistics.
+ * @stats_dma_done: Pointer to the flag which indicates DMA completion.
+ * @spi_flash: SPI flash device
+ * @spi_eeprom: SPI EEPROM device
+ * @spi_lock: SPI bus lock
+ * @mdio_lock: MDIO bus lock
+ * @xmac_poll_required: XMAC link state needs polling
+ */
+struct falcon_nic_data {
+ struct pci_dev *pci_dev2;
+ struct falcon_board board;
+ unsigned int stats_disable_count;
+ bool stats_pending;
+ struct timer_list stats_timer;
+ u32 *stats_dma_done;
+ struct efx_spi_device spi_flash;
+ struct efx_spi_device spi_eeprom;
+ struct mutex spi_lock;
+ struct mutex mdio_lock;
+ bool xmac_poll_required;
+};
+
+static inline struct falcon_board *falcon_board(struct efx_nic *efx)
+{
+ struct falcon_nic_data *data = efx->nic_data;
+ return &data->board;
+}
+
+/**
+ * struct siena_nic_data - Siena NIC state
+ * @mcdi: Management-Controller-to-Driver Interface
+ * @mcdi_smem: MCDI shared memory mapping. The mapping is always uncacheable.
+ * @wol_filter_id: Wake-on-LAN packet filter id
+ */
+struct siena_nic_data {
+ struct efx_mcdi_iface mcdi;
+ void __iomem *mcdi_smem;
+ int wol_filter_id;
+};
+
+extern const struct efx_nic_type falcon_a1_nic_type;
+extern const struct efx_nic_type falcon_b0_nic_type;
+extern const struct efx_nic_type siena_a0_nic_type;
+
+/**************************************************************************
+ *
+ * Externs
+ *
+ **************************************************************************
+ */
+
+extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
+
+/* TX data path */
+extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);
+extern void efx_nic_init_tx(struct efx_tx_queue *tx_queue);
+extern void efx_nic_fini_tx(struct efx_tx_queue *tx_queue);
+extern void efx_nic_remove_tx(struct efx_tx_queue *tx_queue);
+extern void efx_nic_push_buffers(struct efx_tx_queue *tx_queue);
+
+/* RX data path */
+extern int efx_nic_probe_rx(struct efx_rx_queue *rx_queue);
+extern void efx_nic_init_rx(struct efx_rx_queue *rx_queue);
+extern void efx_nic_fini_rx(struct efx_rx_queue *rx_queue);
+extern void efx_nic_remove_rx(struct efx_rx_queue *rx_queue);
+extern void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue);
+
+/* Event data path */
+extern int efx_nic_probe_eventq(struct efx_channel *channel);
+extern void efx_nic_init_eventq(struct efx_channel *channel);
+extern void efx_nic_fini_eventq(struct efx_channel *channel);
+extern void efx_nic_remove_eventq(struct efx_channel *channel);
+extern int efx_nic_process_eventq(struct efx_channel *channel, int rx_quota);
+extern void efx_nic_eventq_read_ack(struct efx_channel *channel);
+extern bool efx_nic_event_present(struct efx_channel *channel);
+
+/* MAC/PHY */
+extern void falcon_drain_tx_fifo(struct efx_nic *efx);
+extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
+
+/* Interrupts and test events */
+extern int efx_nic_init_interrupt(struct efx_nic *efx);
+extern void efx_nic_enable_interrupts(struct efx_nic *efx);
+extern void efx_nic_generate_test_event(struct efx_channel *channel);
+extern void efx_nic_generate_fill_event(struct efx_channel *channel);
+extern void efx_nic_generate_interrupt(struct efx_nic *efx);
+extern void efx_nic_disable_interrupts(struct efx_nic *efx);
+extern void efx_nic_fini_interrupt(struct efx_nic *efx);
+extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx);
+extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id);
+extern void falcon_irq_ack_a1(struct efx_nic *efx);
+
+#define EFX_IRQ_MOD_RESOLUTION 5
+
+/* Global Resources */
+extern int efx_nic_flush_queues(struct efx_nic *efx);
+extern void falcon_start_nic_stats(struct efx_nic *efx);
+extern void falcon_stop_nic_stats(struct efx_nic *efx);
+extern void falcon_setup_xaui(struct efx_nic *efx);
+extern int falcon_reset_xaui(struct efx_nic *efx);
+extern void efx_nic_init_common(struct efx_nic *efx);
+extern void efx_nic_push_rx_indir_table(struct efx_nic *efx);
+
+int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
+ unsigned int len);
+void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer);
+
+/* Tests */
+struct efx_nic_register_test {
+ unsigned address;
+ efx_oword_t mask;
+};
+extern int efx_nic_test_registers(struct efx_nic *efx,
+ const struct efx_nic_register_test *regs,
+ size_t n_regs);
+
+extern size_t efx_nic_get_regs_len(struct efx_nic *efx);
+extern void efx_nic_get_regs(struct efx_nic *efx, void *buf);
+
+/**************************************************************************
+ *
+ * Falcon MAC stats
+ *
+ **************************************************************************
+ */
+
+#define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
+#define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
+
+/* Retrieve statistic from statistics block */
+#define FALCON_STAT(efx, falcon_stat, efx_stat) do { \
+ if (FALCON_STAT_WIDTH(falcon_stat) == 16) \
+ (efx)->mac_stats.efx_stat += le16_to_cpu( \
+ *((__force __le16 *) \
+ (efx->stats_buffer.addr + \
+ FALCON_STAT_OFFSET(falcon_stat)))); \
+ else if (FALCON_STAT_WIDTH(falcon_stat) == 32) \
+ (efx)->mac_stats.efx_stat += le32_to_cpu( \
+ *((__force __le32 *) \
+ (efx->stats_buffer.addr + \
+ FALCON_STAT_OFFSET(falcon_stat)))); \
+ else \
+ (efx)->mac_stats.efx_stat += le64_to_cpu( \
+ *((__force __le64 *) \
+ (efx->stats_buffer.addr + \
+ FALCON_STAT_OFFSET(falcon_stat)))); \
+ } while (0)
+
+#define FALCON_MAC_STATS_SIZE 0x100
+
+#define MAC_DATA_LBN 0
+#define MAC_DATA_WIDTH 32
+
+extern void efx_nic_generate_event(struct efx_channel *channel,
+ efx_qword_t *event);
+
+extern void falcon_poll_xmac(struct efx_nic *efx);
+
+#endif /* EFX_NIC_H */
diff --git a/drivers/net/ethernet/sfc/phy.h b/drivers/net/ethernet/sfc/phy.h
new file mode 100644
index 000000000000..11d148cd8441
--- /dev/null
+++ b/drivers/net/ethernet/sfc/phy.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2007-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_PHY_H
+#define EFX_PHY_H
+
+/****************************************************************************
+ * 10Xpress (SFX7101) PHY
+ */
+extern const struct efx_phy_operations falcon_sfx7101_phy_ops;
+
+extern void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
+
+/****************************************************************************
+ * AMCC/Quake QT202x PHYs
+ */
+extern const struct efx_phy_operations falcon_qt202x_phy_ops;
+
+/* These PHYs provide various H/W control states for LEDs */
+#define QUAKE_LED_LINK_INVAL (0)
+#define QUAKE_LED_LINK_STAT (1)
+#define QUAKE_LED_LINK_ACT (2)
+#define QUAKE_LED_LINK_ACTSTAT (3)
+#define QUAKE_LED_OFF (4)
+#define QUAKE_LED_ON (5)
+#define QUAKE_LED_LINK_INPUT (6) /* Pin is an input. */
+/* What link the LED tracks */
+#define QUAKE_LED_TXLINK (0)
+#define QUAKE_LED_RXLINK (8)
+
+extern void falcon_qt202x_set_led(struct efx_nic *p, int led, int state);
+
+/****************************************************************************
+* Transwitch CX4 retimer
+*/
+extern const struct efx_phy_operations falcon_txc_phy_ops;
+
+#define TXC_GPIO_DIR_INPUT 0
+#define TXC_GPIO_DIR_OUTPUT 1
+
+extern void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir);
+extern void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int val);
+
+/****************************************************************************
+ * Siena managed PHYs
+ */
+extern const struct efx_phy_operations efx_mcdi_phy_ops;
+
+extern int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad,
+ u16 addr, u16 *value_out, u32 *status_out);
+extern int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus,
+ unsigned int prtad, unsigned int devad,
+ u16 addr, u16 value, u32 *status_out);
+extern void efx_mcdi_phy_decode_link(struct efx_nic *efx,
+ struct efx_link_state *link_state,
+ u32 speed, u32 flags, u32 fcntl);
+extern int efx_mcdi_phy_reconfigure(struct efx_nic *efx);
+extern void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa);
+
+#endif
diff --git a/drivers/net/ethernet/sfc/qt202x_phy.c b/drivers/net/ethernet/sfc/qt202x_phy.c
new file mode 100644
index 000000000000..7ad97e397406
--- /dev/null
+++ b/drivers/net/ethernet/sfc/qt202x_phy.c
@@ -0,0 +1,462 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+/*
+ * Driver for AMCC QT202x SFP+ and XFP adapters; see www.amcc.com for details
+ */
+
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include "efx.h"
+#include "mdio_10g.h"
+#include "phy.h"
+#include "nic.h"
+
+#define QT202X_REQUIRED_DEVS (MDIO_DEVS_PCS | \
+ MDIO_DEVS_PMAPMD | \
+ MDIO_DEVS_PHYXS)
+
+#define QT202X_LOOPBACKS ((1 << LOOPBACK_PCS) | \
+ (1 << LOOPBACK_PMAPMD) | \
+ (1 << LOOPBACK_PHYXS_WS))
+
+/****************************************************************************/
+/* Quake-specific MDIO registers */
+#define MDIO_QUAKE_LED0_REG (0xD006)
+
+/* QT2025C only */
+#define PCS_FW_HEARTBEAT_REG 0xd7ee
+#define PCS_FW_HEARTB_LBN 0
+#define PCS_FW_HEARTB_WIDTH 8
+#define PCS_FW_PRODUCT_CODE_1 0xd7f0
+#define PCS_FW_VERSION_1 0xd7f3
+#define PCS_FW_BUILD_1 0xd7f6
+#define PCS_UC8051_STATUS_REG 0xd7fd
+#define PCS_UC_STATUS_LBN 0
+#define PCS_UC_STATUS_WIDTH 8
+#define PCS_UC_STATUS_FW_SAVE 0x20
+#define PMA_PMD_MODE_REG 0xc301
+#define PMA_PMD_RXIN_SEL_LBN 6
+#define PMA_PMD_FTX_CTRL2_REG 0xc309
+#define PMA_PMD_FTX_STATIC_LBN 13
+#define PMA_PMD_VEND1_REG 0xc001
+#define PMA_PMD_VEND1_LBTXD_LBN 15
+#define PCS_VEND1_REG 0xc000
+#define PCS_VEND1_LBTXD_LBN 5
+
+void falcon_qt202x_set_led(struct efx_nic *p, int led, int mode)
+{
+ int addr = MDIO_QUAKE_LED0_REG + led;
+ efx_mdio_write(p, MDIO_MMD_PMAPMD, addr, mode);
+}
+
+struct qt202x_phy_data {
+ enum efx_phy_mode phy_mode;
+ bool bug17190_in_bad_state;
+ unsigned long bug17190_timer;
+ u32 firmware_ver;
+};
+
+#define QT2022C2_MAX_RESET_TIME 500
+#define QT2022C2_RESET_WAIT 10
+
+#define QT2025C_MAX_HEARTB_TIME (5 * HZ)
+#define QT2025C_HEARTB_WAIT 100
+#define QT2025C_MAX_FWSTART_TIME (25 * HZ / 10)
+#define QT2025C_FWSTART_WAIT 100
+
+#define BUG17190_INTERVAL (2 * HZ)
+
+static int qt2025c_wait_heartbeat(struct efx_nic *efx)
+{
+ unsigned long timeout = jiffies + QT2025C_MAX_HEARTB_TIME;
+ int reg, old_counter = 0;
+
+ /* Wait for firmware heartbeat to start */
+ for (;;) {
+ int counter;
+ reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_FW_HEARTBEAT_REG);
+ if (reg < 0)
+ return reg;
+ counter = ((reg >> PCS_FW_HEARTB_LBN) &
+ ((1 << PCS_FW_HEARTB_WIDTH) - 1));
+ if (old_counter == 0)
+ old_counter = counter;
+ else if (counter != old_counter)
+ break;
+ if (time_after(jiffies, timeout)) {
+ /* Some cables have EEPROMs that conflict with the
+ * PHY's on-board EEPROM so it cannot load firmware */
+ netif_err(efx, hw, efx->net_dev,
+ "If an SFP+ direct attach cable is"
+ " connected, please check that it complies"
+ " with the SFP+ specification\n");
+ return -ETIMEDOUT;
+ }
+ msleep(QT2025C_HEARTB_WAIT);
+ }
+
+ return 0;
+}
+
+static int qt2025c_wait_fw_status_good(struct efx_nic *efx)
+{
+ unsigned long timeout = jiffies + QT2025C_MAX_FWSTART_TIME;
+ int reg;
+
+ /* Wait for firmware status to look good */
+ for (;;) {
+ reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_UC8051_STATUS_REG);
+ if (reg < 0)
+ return reg;
+ if ((reg &
+ ((1 << PCS_UC_STATUS_WIDTH) - 1) << PCS_UC_STATUS_LBN) >=
+ PCS_UC_STATUS_FW_SAVE)
+ break;
+ if (time_after(jiffies, timeout))
+ return -ETIMEDOUT;
+ msleep(QT2025C_FWSTART_WAIT);
+ }
+
+ return 0;
+}
+
+static void qt2025c_restart_firmware(struct efx_nic *efx)
+{
+ /* Restart microcontroller execution of firmware from RAM */
+ efx_mdio_write(efx, 3, 0xe854, 0x00c0);
+ efx_mdio_write(efx, 3, 0xe854, 0x0040);
+ msleep(50);
+}
+
+static int qt2025c_wait_reset(struct efx_nic *efx)
+{
+ int rc;
+
+ rc = qt2025c_wait_heartbeat(efx);
+ if (rc != 0)
+ return rc;
+
+ rc = qt2025c_wait_fw_status_good(efx);
+ if (rc == -ETIMEDOUT) {
+ /* Bug 17689: occasionally heartbeat starts but firmware status
+ * code never progresses beyond 0x00. Try again, once, after
+ * restarting execution of the firmware image. */
+ netif_dbg(efx, hw, efx->net_dev,
+ "bashing QT2025C microcontroller\n");
+ qt2025c_restart_firmware(efx);
+ rc = qt2025c_wait_heartbeat(efx);
+ if (rc != 0)
+ return rc;
+ rc = qt2025c_wait_fw_status_good(efx);
+ }
+
+ return rc;
+}
+
+static void qt2025c_firmware_id(struct efx_nic *efx)
+{
+ struct qt202x_phy_data *phy_data = efx->phy_data;
+ u8 firmware_id[9];
+ size_t i;
+
+ for (i = 0; i < sizeof(firmware_id); i++)
+ firmware_id[i] = efx_mdio_read(efx, MDIO_MMD_PCS,
+ PCS_FW_PRODUCT_CODE_1 + i);
+ netif_info(efx, probe, efx->net_dev,
+ "QT2025C firmware %xr%d v%d.%d.%d.%d [20%02d-%02d-%02d]\n",
+ (firmware_id[0] << 8) | firmware_id[1], firmware_id[2],
+ firmware_id[3] >> 4, firmware_id[3] & 0xf,
+ firmware_id[4], firmware_id[5],
+ firmware_id[6], firmware_id[7], firmware_id[8]);
+ phy_data->firmware_ver = ((firmware_id[3] & 0xf0) << 20) |
+ ((firmware_id[3] & 0x0f) << 16) |
+ (firmware_id[4] << 8) | firmware_id[5];
+}
+
+static void qt2025c_bug17190_workaround(struct efx_nic *efx)
+{
+ struct qt202x_phy_data *phy_data = efx->phy_data;
+
+ /* The PHY can get stuck in a state where it reports PHY_XS and PMA/PMD
+ * layers up, but PCS down (no block_lock). If we notice this state
+ * persisting for a couple of seconds, we switch PMA/PMD loopback
+ * briefly on and then off again, which is normally sufficient to
+ * recover it.
+ */
+ if (efx->link_state.up ||
+ !efx_mdio_links_ok(efx, MDIO_DEVS_PMAPMD | MDIO_DEVS_PHYXS)) {
+ phy_data->bug17190_in_bad_state = false;
+ return;
+ }
+
+ if (!phy_data->bug17190_in_bad_state) {
+ phy_data->bug17190_in_bad_state = true;
+ phy_data->bug17190_timer = jiffies + BUG17190_INTERVAL;
+ return;
+ }
+
+ if (time_after_eq(jiffies, phy_data->bug17190_timer)) {
+ netif_dbg(efx, hw, efx->net_dev, "bashing QT2025C PMA/PMD\n");
+ efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, MDIO_CTRL1,
+ MDIO_PMA_CTRL1_LOOPBACK, true);
+ msleep(100);
+ efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, MDIO_CTRL1,
+ MDIO_PMA_CTRL1_LOOPBACK, false);
+ phy_data->bug17190_timer = jiffies + BUG17190_INTERVAL;
+ }
+}
+
+static int qt2025c_select_phy_mode(struct efx_nic *efx)
+{
+ struct qt202x_phy_data *phy_data = efx->phy_data;
+ struct falcon_board *board = falcon_board(efx);
+ int reg, rc, i;
+ uint16_t phy_op_mode;
+
+ /* Only 2.0.1.0+ PHY firmware supports the more optimal SFP+
+ * Self-Configure mode. Don't attempt any switching if we encounter
+ * older firmware. */
+ if (phy_data->firmware_ver < 0x02000100)
+ return 0;
+
+ /* In general we will get optimal behaviour in "SFP+ Self-Configure"
+ * mode; however, that powers down most of the PHY when no module is
+ * present, so we must use a different mode (any fixed mode will do)
+ * to be sure that loopbacks will work. */
+ phy_op_mode = (efx->loopback_mode == LOOPBACK_NONE) ? 0x0038 : 0x0020;
+
+ /* Only change mode if really necessary */
+ reg = efx_mdio_read(efx, 1, 0xc319);
+ if ((reg & 0x0038) == phy_op_mode)
+ return 0;
+ netif_dbg(efx, hw, efx->net_dev, "Switching PHY to mode 0x%04x\n",
+ phy_op_mode);
+
+ /* This sequence replicates the register writes configured in the boot
+ * EEPROM (including the differences between board revisions), except
+ * that the operating mode is changed, and the PHY is prevented from
+ * unnecessarily reloading the main firmware image again. */
+ efx_mdio_write(efx, 1, 0xc300, 0x0000);
+ /* (Note: this portion of the boot EEPROM sequence, which bit-bashes 9
+ * STOPs onto the firmware/module I2C bus to reset it, varies across
+ * board revisions, as the bus is connected to different GPIO/LED
+ * outputs on the PHY.) */
+ if (board->major == 0 && board->minor < 2) {
+ efx_mdio_write(efx, 1, 0xc303, 0x4498);
+ for (i = 0; i < 9; i++) {
+ efx_mdio_write(efx, 1, 0xc303, 0x4488);
+ efx_mdio_write(efx, 1, 0xc303, 0x4480);
+ efx_mdio_write(efx, 1, 0xc303, 0x4490);
+ efx_mdio_write(efx, 1, 0xc303, 0x4498);
+ }
+ } else {
+ efx_mdio_write(efx, 1, 0xc303, 0x0920);
+ efx_mdio_write(efx, 1, 0xd008, 0x0004);
+ for (i = 0; i < 9; i++) {
+ efx_mdio_write(efx, 1, 0xc303, 0x0900);
+ efx_mdio_write(efx, 1, 0xd008, 0x0005);
+ efx_mdio_write(efx, 1, 0xc303, 0x0920);
+ efx_mdio_write(efx, 1, 0xd008, 0x0004);
+ }
+ efx_mdio_write(efx, 1, 0xc303, 0x4900);
+ }
+ efx_mdio_write(efx, 1, 0xc303, 0x4900);
+ efx_mdio_write(efx, 1, 0xc302, 0x0004);
+ efx_mdio_write(efx, 1, 0xc316, 0x0013);
+ efx_mdio_write(efx, 1, 0xc318, 0x0054);
+ efx_mdio_write(efx, 1, 0xc319, phy_op_mode);
+ efx_mdio_write(efx, 1, 0xc31a, 0x0098);
+ efx_mdio_write(efx, 3, 0x0026, 0x0e00);
+ efx_mdio_write(efx, 3, 0x0027, 0x0013);
+ efx_mdio_write(efx, 3, 0x0028, 0xa528);
+ efx_mdio_write(efx, 1, 0xd006, 0x000a);
+ efx_mdio_write(efx, 1, 0xd007, 0x0009);
+ efx_mdio_write(efx, 1, 0xd008, 0x0004);
+ /* This additional write is not present in the boot EEPROM. It
+ * prevents the PHY's internal boot ROM doing another pointless (and
+ * slow) reload of the firmware image (the microcontroller's code
+ * memory is not affected by the microcontroller reset). */
+ efx_mdio_write(efx, 1, 0xc317, 0x00ff);
+ /* PMA/PMD loopback sets RXIN to inverse polarity and the firmware
+ * restart doesn't reset it. We need to do that ourselves. */
+ efx_mdio_set_flag(efx, 1, PMA_PMD_MODE_REG,
+ 1 << PMA_PMD_RXIN_SEL_LBN, false);
+ efx_mdio_write(efx, 1, 0xc300, 0x0002);
+ msleep(20);
+
+ /* Restart microcontroller execution of firmware from RAM */
+ qt2025c_restart_firmware(efx);
+
+ /* Wait for the microcontroller to be ready again */
+ rc = qt2025c_wait_reset(efx);
+ if (rc < 0) {
+ netif_err(efx, hw, efx->net_dev,
+ "PHY microcontroller reset during mode switch "
+ "timed out\n");
+ return rc;
+ }
+
+ return 0;
+}
+
+static int qt202x_reset_phy(struct efx_nic *efx)
+{
+ int rc;
+
+ if (efx->phy_type == PHY_TYPE_QT2025C) {
+ /* Wait for the reset triggered by falcon_reset_hw()
+ * to complete */
+ rc = qt2025c_wait_reset(efx);
+ if (rc < 0)
+ goto fail;
+ } else {
+ /* Reset the PHYXS MMD. This is documented as doing
+ * a complete soft reset. */
+ rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PHYXS,
+ QT2022C2_MAX_RESET_TIME /
+ QT2022C2_RESET_WAIT,
+ QT2022C2_RESET_WAIT);
+ if (rc < 0)
+ goto fail;
+ }
+
+ /* Wait 250ms for the PHY to complete bootup */
+ msleep(250);
+
+ falcon_board(efx)->type->init_phy(efx);
+
+ return 0;
+
+ fail:
+ netif_err(efx, hw, efx->net_dev, "PHY reset timed out\n");
+ return rc;
+}
+
+static int qt202x_phy_probe(struct efx_nic *efx)
+{
+ struct qt202x_phy_data *phy_data;
+
+ phy_data = kzalloc(sizeof(struct qt202x_phy_data), GFP_KERNEL);
+ if (!phy_data)
+ return -ENOMEM;
+ efx->phy_data = phy_data;
+ phy_data->phy_mode = efx->phy_mode;
+ phy_data->bug17190_in_bad_state = false;
+ phy_data->bug17190_timer = 0;
+
+ efx->mdio.mmds = QT202X_REQUIRED_DEVS;
+ efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
+ efx->loopback_modes = QT202X_LOOPBACKS | FALCON_XMAC_LOOPBACKS;
+ return 0;
+}
+
+static int qt202x_phy_init(struct efx_nic *efx)
+{
+ u32 devid;
+ int rc;
+
+ rc = qt202x_reset_phy(efx);
+ if (rc) {
+ netif_err(efx, probe, efx->net_dev, "PHY init failed\n");
+ return rc;
+ }
+
+ devid = efx_mdio_read_id(efx, MDIO_MMD_PHYXS);
+ netif_info(efx, probe, efx->net_dev,
+ "PHY ID reg %x (OUI %06x model %02x revision %x)\n",
+ devid, efx_mdio_id_oui(devid), efx_mdio_id_model(devid),
+ efx_mdio_id_rev(devid));
+
+ if (efx->phy_type == PHY_TYPE_QT2025C)
+ qt2025c_firmware_id(efx);
+
+ return 0;
+}
+
+static int qt202x_link_ok(struct efx_nic *efx)
+{
+ return efx_mdio_links_ok(efx, QT202X_REQUIRED_DEVS);
+}
+
+static bool qt202x_phy_poll(struct efx_nic *efx)
+{
+ bool was_up = efx->link_state.up;
+
+ efx->link_state.up = qt202x_link_ok(efx);
+ efx->link_state.speed = 10000;
+ efx->link_state.fd = true;
+ efx->link_state.fc = efx->wanted_fc;
+
+ if (efx->phy_type == PHY_TYPE_QT2025C)
+ qt2025c_bug17190_workaround(efx);
+
+ return efx->link_state.up != was_up;
+}
+
+static int qt202x_phy_reconfigure(struct efx_nic *efx)
+{
+ struct qt202x_phy_data *phy_data = efx->phy_data;
+
+ if (efx->phy_type == PHY_TYPE_QT2025C) {
+ int rc = qt2025c_select_phy_mode(efx);
+ if (rc)
+ return rc;
+
+ /* There are several different register bits which can
+ * disable TX (and save power) on direct-attach cables
+ * or optical transceivers, varying somewhat between
+ * firmware versions. Only 'static mode' appears to
+ * cover everything. */
+ mdio_set_flag(
+ &efx->mdio, efx->mdio.prtad, MDIO_MMD_PMAPMD,
+ PMA_PMD_FTX_CTRL2_REG, 1 << PMA_PMD_FTX_STATIC_LBN,
+ efx->phy_mode & PHY_MODE_TX_DISABLED ||
+ efx->phy_mode & PHY_MODE_LOW_POWER ||
+ efx->loopback_mode == LOOPBACK_PCS ||
+ efx->loopback_mode == LOOPBACK_PMAPMD);
+ } else {
+ /* Reset the PHY when moving from tx off to tx on */
+ if (!(efx->phy_mode & PHY_MODE_TX_DISABLED) &&
+ (phy_data->phy_mode & PHY_MODE_TX_DISABLED))
+ qt202x_reset_phy(efx);
+
+ efx_mdio_transmit_disable(efx);
+ }
+
+ efx_mdio_phy_reconfigure(efx);
+
+ phy_data->phy_mode = efx->phy_mode;
+
+ return 0;
+}
+
+static void qt202x_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+{
+ mdio45_ethtool_gset(&efx->mdio, ecmd);
+}
+
+static void qt202x_phy_remove(struct efx_nic *efx)
+{
+ /* Free the context block */
+ kfree(efx->phy_data);
+ efx->phy_data = NULL;
+}
+
+const struct efx_phy_operations falcon_qt202x_phy_ops = {
+ .probe = qt202x_phy_probe,
+ .init = qt202x_phy_init,
+ .reconfigure = qt202x_phy_reconfigure,
+ .poll = qt202x_phy_poll,
+ .fini = efx_port_dummy_op_void,
+ .remove = qt202x_phy_remove,
+ .get_settings = qt202x_phy_get_settings,
+ .set_settings = efx_mdio_set_settings,
+ .test_alive = efx_mdio_test_alive,
+};
diff --git a/drivers/net/ethernet/sfc/regs.h b/drivers/net/ethernet/sfc/regs.h
new file mode 100644
index 000000000000..cc2c86b76a7b
--- /dev/null
+++ b/drivers/net/ethernet/sfc/regs.h
@@ -0,0 +1,3188 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_REGS_H
+#define EFX_REGS_H
+
+/*
+ * Falcon hardware architecture definitions have a name prefix following
+ * the format:
+ *
+ * F<type>_<min-rev><max-rev>_
+ *
+ * The following <type> strings are used:
+ *
+ * MMIO register MC register Host memory structure
+ * -------------------------------------------------------------
+ * Address R MCR
+ * Bitfield RF MCRF SF
+ * Enumerator FE MCFE SE
+ *
+ * <min-rev> is the first revision to which the definition applies:
+ *
+ * A: Falcon A1 (SFC4000AB)
+ * B: Falcon B0 (SFC4000BA)
+ * C: Siena A0 (SFL9021AA)
+ *
+ * If the definition has been changed or removed in later revisions
+ * then <max-rev> is the last revision to which the definition applies;
+ * otherwise it is "Z".
+ */
+
+/**************************************************************************
+ *
+ * Falcon/Siena registers and descriptors
+ *
+ **************************************************************************
+ */
+
+/* ADR_REGION_REG: Address region register */
+#define FR_AZ_ADR_REGION 0x00000000
+#define FRF_AZ_ADR_REGION3_LBN 96
+#define FRF_AZ_ADR_REGION3_WIDTH 18
+#define FRF_AZ_ADR_REGION2_LBN 64
+#define FRF_AZ_ADR_REGION2_WIDTH 18
+#define FRF_AZ_ADR_REGION1_LBN 32
+#define FRF_AZ_ADR_REGION1_WIDTH 18
+#define FRF_AZ_ADR_REGION0_LBN 0
+#define FRF_AZ_ADR_REGION0_WIDTH 18
+
+/* INT_EN_REG_KER: Kernel driver Interrupt enable register */
+#define FR_AZ_INT_EN_KER 0x00000010
+#define FRF_AZ_KER_INT_LEVE_SEL_LBN 8
+#define FRF_AZ_KER_INT_LEVE_SEL_WIDTH 6
+#define FRF_AZ_KER_INT_CHAR_LBN 4
+#define FRF_AZ_KER_INT_CHAR_WIDTH 1
+#define FRF_AZ_KER_INT_KER_LBN 3
+#define FRF_AZ_KER_INT_KER_WIDTH 1
+#define FRF_AZ_DRV_INT_EN_KER_LBN 0
+#define FRF_AZ_DRV_INT_EN_KER_WIDTH 1
+
+/* INT_EN_REG_CHAR: Char Driver interrupt enable register */
+#define FR_BZ_INT_EN_CHAR 0x00000020
+#define FRF_BZ_CHAR_INT_LEVE_SEL_LBN 8
+#define FRF_BZ_CHAR_INT_LEVE_SEL_WIDTH 6
+#define FRF_BZ_CHAR_INT_CHAR_LBN 4
+#define FRF_BZ_CHAR_INT_CHAR_WIDTH 1
+#define FRF_BZ_CHAR_INT_KER_LBN 3
+#define FRF_BZ_CHAR_INT_KER_WIDTH 1
+#define FRF_BZ_DRV_INT_EN_CHAR_LBN 0
+#define FRF_BZ_DRV_INT_EN_CHAR_WIDTH 1
+
+/* INT_ADR_REG_KER: Interrupt host address for Kernel driver */
+#define FR_AZ_INT_ADR_KER 0x00000030
+#define FRF_AZ_NORM_INT_VEC_DIS_KER_LBN 64
+#define FRF_AZ_NORM_INT_VEC_DIS_KER_WIDTH 1
+#define FRF_AZ_INT_ADR_KER_LBN 0
+#define FRF_AZ_INT_ADR_KER_WIDTH 64
+
+/* INT_ADR_REG_CHAR: Interrupt host address for Char driver */
+#define FR_BZ_INT_ADR_CHAR 0x00000040
+#define FRF_BZ_NORM_INT_VEC_DIS_CHAR_LBN 64
+#define FRF_BZ_NORM_INT_VEC_DIS_CHAR_WIDTH 1
+#define FRF_BZ_INT_ADR_CHAR_LBN 0
+#define FRF_BZ_INT_ADR_CHAR_WIDTH 64
+
+/* INT_ACK_KER: Kernel interrupt acknowledge register */
+#define FR_AA_INT_ACK_KER 0x00000050
+#define FRF_AA_INT_ACK_KER_FIELD_LBN 0
+#define FRF_AA_INT_ACK_KER_FIELD_WIDTH 32
+
+/* INT_ISR0_REG: Function 0 Interrupt Acknowledge Status register */
+#define FR_BZ_INT_ISR0 0x00000090
+#define FRF_BZ_INT_ISR_REG_LBN 0
+#define FRF_BZ_INT_ISR_REG_WIDTH 64
+
+/* HW_INIT_REG: Hardware initialization register */
+#define FR_AZ_HW_INIT 0x000000c0
+#define FRF_BB_BDMRD_CPLF_FULL_LBN 124
+#define FRF_BB_BDMRD_CPLF_FULL_WIDTH 1
+#define FRF_BB_PCIE_CPL_TIMEOUT_CTRL_LBN 121
+#define FRF_BB_PCIE_CPL_TIMEOUT_CTRL_WIDTH 3
+#define FRF_CZ_TX_MRG_TAGS_LBN 120
+#define FRF_CZ_TX_MRG_TAGS_WIDTH 1
+#define FRF_AB_TRGT_MASK_ALL_LBN 100
+#define FRF_AB_TRGT_MASK_ALL_WIDTH 1
+#define FRF_AZ_DOORBELL_DROP_LBN 92
+#define FRF_AZ_DOORBELL_DROP_WIDTH 8
+#define FRF_AB_TX_RREQ_MASK_EN_LBN 76
+#define FRF_AB_TX_RREQ_MASK_EN_WIDTH 1
+#define FRF_AB_PE_EIDLE_DIS_LBN 75
+#define FRF_AB_PE_EIDLE_DIS_WIDTH 1
+#define FRF_AA_FC_BLOCKING_EN_LBN 45
+#define FRF_AA_FC_BLOCKING_EN_WIDTH 1
+#define FRF_BZ_B2B_REQ_EN_LBN 45
+#define FRF_BZ_B2B_REQ_EN_WIDTH 1
+#define FRF_AA_B2B_REQ_EN_LBN 44
+#define FRF_AA_B2B_REQ_EN_WIDTH 1
+#define FRF_BB_FC_BLOCKING_EN_LBN 44
+#define FRF_BB_FC_BLOCKING_EN_WIDTH 1
+#define FRF_AZ_POST_WR_MASK_LBN 40
+#define FRF_AZ_POST_WR_MASK_WIDTH 4
+#define FRF_AZ_TLP_TC_LBN 34
+#define FRF_AZ_TLP_TC_WIDTH 3
+#define FRF_AZ_TLP_ATTR_LBN 32
+#define FRF_AZ_TLP_ATTR_WIDTH 2
+#define FRF_AB_INTB_VEC_LBN 24
+#define FRF_AB_INTB_VEC_WIDTH 5
+#define FRF_AB_INTA_VEC_LBN 16
+#define FRF_AB_INTA_VEC_WIDTH 5
+#define FRF_AZ_WD_TIMER_LBN 8
+#define FRF_AZ_WD_TIMER_WIDTH 8
+#define FRF_AZ_US_DISABLE_LBN 5
+#define FRF_AZ_US_DISABLE_WIDTH 1
+#define FRF_AZ_TLP_EP_LBN 4
+#define FRF_AZ_TLP_EP_WIDTH 1
+#define FRF_AZ_ATTR_SEL_LBN 3
+#define FRF_AZ_ATTR_SEL_WIDTH 1
+#define FRF_AZ_TD_SEL_LBN 1
+#define FRF_AZ_TD_SEL_WIDTH 1
+#define FRF_AZ_TLP_TD_LBN 0
+#define FRF_AZ_TLP_TD_WIDTH 1
+
+/* EE_SPI_HCMD_REG: SPI host command register */
+#define FR_AB_EE_SPI_HCMD 0x00000100
+#define FRF_AB_EE_SPI_HCMD_CMD_EN_LBN 31
+#define FRF_AB_EE_SPI_HCMD_CMD_EN_WIDTH 1
+#define FRF_AB_EE_WR_TIMER_ACTIVE_LBN 28
+#define FRF_AB_EE_WR_TIMER_ACTIVE_WIDTH 1
+#define FRF_AB_EE_SPI_HCMD_SF_SEL_LBN 24
+#define FRF_AB_EE_SPI_HCMD_SF_SEL_WIDTH 1
+#define FRF_AB_EE_SPI_HCMD_DABCNT_LBN 16
+#define FRF_AB_EE_SPI_HCMD_DABCNT_WIDTH 5
+#define FRF_AB_EE_SPI_HCMD_READ_LBN 15
+#define FRF_AB_EE_SPI_HCMD_READ_WIDTH 1
+#define FRF_AB_EE_SPI_HCMD_DUBCNT_LBN 12
+#define FRF_AB_EE_SPI_HCMD_DUBCNT_WIDTH 2
+#define FRF_AB_EE_SPI_HCMD_ADBCNT_LBN 8
+#define FRF_AB_EE_SPI_HCMD_ADBCNT_WIDTH 2
+#define FRF_AB_EE_SPI_HCMD_ENC_LBN 0
+#define FRF_AB_EE_SPI_HCMD_ENC_WIDTH 8
+
+/* USR_EV_CFG: User Level Event Configuration register */
+#define FR_CZ_USR_EV_CFG 0x00000100
+#define FRF_CZ_USREV_DIS_LBN 16
+#define FRF_CZ_USREV_DIS_WIDTH 1
+#define FRF_CZ_DFLT_EVQ_LBN 0
+#define FRF_CZ_DFLT_EVQ_WIDTH 10
+
+/* EE_SPI_HADR_REG: SPI host address register */
+#define FR_AB_EE_SPI_HADR 0x00000110
+#define FRF_AB_EE_SPI_HADR_DUBYTE_LBN 24
+#define FRF_AB_EE_SPI_HADR_DUBYTE_WIDTH 8
+#define FRF_AB_EE_SPI_HADR_ADR_LBN 0
+#define FRF_AB_EE_SPI_HADR_ADR_WIDTH 24
+
+/* EE_SPI_HDATA_REG: SPI host data register */
+#define FR_AB_EE_SPI_HDATA 0x00000120
+#define FRF_AB_EE_SPI_HDATA3_LBN 96
+#define FRF_AB_EE_SPI_HDATA3_WIDTH 32
+#define FRF_AB_EE_SPI_HDATA2_LBN 64
+#define FRF_AB_EE_SPI_HDATA2_WIDTH 32
+#define FRF_AB_EE_SPI_HDATA1_LBN 32
+#define FRF_AB_EE_SPI_HDATA1_WIDTH 32
+#define FRF_AB_EE_SPI_HDATA0_LBN 0
+#define FRF_AB_EE_SPI_HDATA0_WIDTH 32
+
+/* EE_BASE_PAGE_REG: Expansion ROM base mirror register */
+#define FR_AB_EE_BASE_PAGE 0x00000130
+#define FRF_AB_EE_EXPROM_MASK_LBN 16
+#define FRF_AB_EE_EXPROM_MASK_WIDTH 13
+#define FRF_AB_EE_EXP_ROM_WINDOW_BASE_LBN 0
+#define FRF_AB_EE_EXP_ROM_WINDOW_BASE_WIDTH 13
+
+/* EE_VPD_CFG0_REG: SPI/VPD configuration register 0 */
+#define FR_AB_EE_VPD_CFG0 0x00000140
+#define FRF_AB_EE_SF_FASTRD_EN_LBN 127
+#define FRF_AB_EE_SF_FASTRD_EN_WIDTH 1
+#define FRF_AB_EE_SF_CLOCK_DIV_LBN 120
+#define FRF_AB_EE_SF_CLOCK_DIV_WIDTH 7
+#define FRF_AB_EE_VPD_WIP_POLL_LBN 119
+#define FRF_AB_EE_VPD_WIP_POLL_WIDTH 1
+#define FRF_AB_EE_EE_CLOCK_DIV_LBN 112
+#define FRF_AB_EE_EE_CLOCK_DIV_WIDTH 7
+#define FRF_AB_EE_EE_WR_TMR_VALUE_LBN 96
+#define FRF_AB_EE_EE_WR_TMR_VALUE_WIDTH 16
+#define FRF_AB_EE_VPDW_LENGTH_LBN 80
+#define FRF_AB_EE_VPDW_LENGTH_WIDTH 15
+#define FRF_AB_EE_VPDW_BASE_LBN 64
+#define FRF_AB_EE_VPDW_BASE_WIDTH 15
+#define FRF_AB_EE_VPD_WR_CMD_EN_LBN 56
+#define FRF_AB_EE_VPD_WR_CMD_EN_WIDTH 8
+#define FRF_AB_EE_VPD_BASE_LBN 32
+#define FRF_AB_EE_VPD_BASE_WIDTH 24
+#define FRF_AB_EE_VPD_LENGTH_LBN 16
+#define FRF_AB_EE_VPD_LENGTH_WIDTH 15
+#define FRF_AB_EE_VPD_AD_SIZE_LBN 8
+#define FRF_AB_EE_VPD_AD_SIZE_WIDTH 5
+#define FRF_AB_EE_VPD_ACCESS_ON_LBN 5
+#define FRF_AB_EE_VPD_ACCESS_ON_WIDTH 1
+#define FRF_AB_EE_VPD_ACCESS_BLOCK_LBN 4
+#define FRF_AB_EE_VPD_ACCESS_BLOCK_WIDTH 1
+#define FRF_AB_EE_VPD_DEV_SF_SEL_LBN 2
+#define FRF_AB_EE_VPD_DEV_SF_SEL_WIDTH 1
+#define FRF_AB_EE_VPD_EN_AD9_MODE_LBN 1
+#define FRF_AB_EE_VPD_EN_AD9_MODE_WIDTH 1
+#define FRF_AB_EE_VPD_EN_LBN 0
+#define FRF_AB_EE_VPD_EN_WIDTH 1
+
+/* EE_VPD_SW_CNTL_REG: VPD access SW control register */
+#define FR_AB_EE_VPD_SW_CNTL 0x00000150
+#define FRF_AB_EE_VPD_CYCLE_PENDING_LBN 31
+#define FRF_AB_EE_VPD_CYCLE_PENDING_WIDTH 1
+#define FRF_AB_EE_VPD_CYC_WRITE_LBN 28
+#define FRF_AB_EE_VPD_CYC_WRITE_WIDTH 1
+#define FRF_AB_EE_VPD_CYC_ADR_LBN 0
+#define FRF_AB_EE_VPD_CYC_ADR_WIDTH 15
+
+/* EE_VPD_SW_DATA_REG: VPD access SW data register */
+#define FR_AB_EE_VPD_SW_DATA 0x00000160
+#define FRF_AB_EE_VPD_CYC_DAT_LBN 0
+#define FRF_AB_EE_VPD_CYC_DAT_WIDTH 32
+
+/* PBMX_DBG_IADDR_REG: Capture Module address register */
+#define FR_CZ_PBMX_DBG_IADDR 0x000001f0
+#define FRF_CZ_PBMX_DBG_IADDR_LBN 0
+#define FRF_CZ_PBMX_DBG_IADDR_WIDTH 32
+
+/* PCIE_CORE_INDIRECT_REG: Indirect Access to PCIE Core registers */
+#define FR_BB_PCIE_CORE_INDIRECT 0x000001f0
+#define FRF_BB_PCIE_CORE_TARGET_DATA_LBN 32
+#define FRF_BB_PCIE_CORE_TARGET_DATA_WIDTH 32
+#define FRF_BB_PCIE_CORE_INDIRECT_ACCESS_DIR_LBN 15
+#define FRF_BB_PCIE_CORE_INDIRECT_ACCESS_DIR_WIDTH 1
+#define FRF_BB_PCIE_CORE_TARGET_REG_ADRS_LBN 0
+#define FRF_BB_PCIE_CORE_TARGET_REG_ADRS_WIDTH 12
+
+/* PBMX_DBG_IDATA_REG: Capture Module data register */
+#define FR_CZ_PBMX_DBG_IDATA 0x000001f8
+#define FRF_CZ_PBMX_DBG_IDATA_LBN 0
+#define FRF_CZ_PBMX_DBG_IDATA_WIDTH 64
+
+/* NIC_STAT_REG: NIC status register */
+#define FR_AB_NIC_STAT 0x00000200
+#define FRF_BB_AER_DIS_LBN 34
+#define FRF_BB_AER_DIS_WIDTH 1
+#define FRF_BB_EE_STRAP_EN_LBN 31
+#define FRF_BB_EE_STRAP_EN_WIDTH 1
+#define FRF_BB_EE_STRAP_LBN 24
+#define FRF_BB_EE_STRAP_WIDTH 4
+#define FRF_BB_REVISION_ID_LBN 17
+#define FRF_BB_REVISION_ID_WIDTH 7
+#define FRF_AB_ONCHIP_SRAM_LBN 16
+#define FRF_AB_ONCHIP_SRAM_WIDTH 1
+#define FRF_AB_SF_PRST_LBN 9
+#define FRF_AB_SF_PRST_WIDTH 1
+#define FRF_AB_EE_PRST_LBN 8
+#define FRF_AB_EE_PRST_WIDTH 1
+#define FRF_AB_ATE_MODE_LBN 3
+#define FRF_AB_ATE_MODE_WIDTH 1
+#define FRF_AB_STRAP_PINS_LBN 0
+#define FRF_AB_STRAP_PINS_WIDTH 3
+
+/* GPIO_CTL_REG: GPIO control register */
+#define FR_AB_GPIO_CTL 0x00000210
+#define FRF_AB_GPIO_OUT3_LBN 112
+#define FRF_AB_GPIO_OUT3_WIDTH 16
+#define FRF_AB_GPIO_IN3_LBN 104
+#define FRF_AB_GPIO_IN3_WIDTH 8
+#define FRF_AB_GPIO_PWRUP_VALUE3_LBN 96
+#define FRF_AB_GPIO_PWRUP_VALUE3_WIDTH 8
+#define FRF_AB_GPIO_OUT2_LBN 80
+#define FRF_AB_GPIO_OUT2_WIDTH 16
+#define FRF_AB_GPIO_IN2_LBN 72
+#define FRF_AB_GPIO_IN2_WIDTH 8
+#define FRF_AB_GPIO_PWRUP_VALUE2_LBN 64
+#define FRF_AB_GPIO_PWRUP_VALUE2_WIDTH 8
+#define FRF_AB_GPIO15_OEN_LBN 63
+#define FRF_AB_GPIO15_OEN_WIDTH 1
+#define FRF_AB_GPIO14_OEN_LBN 62
+#define FRF_AB_GPIO14_OEN_WIDTH 1
+#define FRF_AB_GPIO13_OEN_LBN 61
+#define FRF_AB_GPIO13_OEN_WIDTH 1
+#define FRF_AB_GPIO12_OEN_LBN 60
+#define FRF_AB_GPIO12_OEN_WIDTH 1
+#define FRF_AB_GPIO11_OEN_LBN 59
+#define FRF_AB_GPIO11_OEN_WIDTH 1
+#define FRF_AB_GPIO10_OEN_LBN 58
+#define FRF_AB_GPIO10_OEN_WIDTH 1
+#define FRF_AB_GPIO9_OEN_LBN 57
+#define FRF_AB_GPIO9_OEN_WIDTH 1
+#define FRF_AB_GPIO8_OEN_LBN 56
+#define FRF_AB_GPIO8_OEN_WIDTH 1
+#define FRF_AB_GPIO15_OUT_LBN 55
+#define FRF_AB_GPIO15_OUT_WIDTH 1
+#define FRF_AB_GPIO14_OUT_LBN 54
+#define FRF_AB_GPIO14_OUT_WIDTH 1
+#define FRF_AB_GPIO13_OUT_LBN 53
+#define FRF_AB_GPIO13_OUT_WIDTH 1
+#define FRF_AB_GPIO12_OUT_LBN 52
+#define FRF_AB_GPIO12_OUT_WIDTH 1
+#define FRF_AB_GPIO11_OUT_LBN 51
+#define FRF_AB_GPIO11_OUT_WIDTH 1
+#define FRF_AB_GPIO10_OUT_LBN 50
+#define FRF_AB_GPIO10_OUT_WIDTH 1
+#define FRF_AB_GPIO9_OUT_LBN 49
+#define FRF_AB_GPIO9_OUT_WIDTH 1
+#define FRF_AB_GPIO8_OUT_LBN 48
+#define FRF_AB_GPIO8_OUT_WIDTH 1
+#define FRF_AB_GPIO15_IN_LBN 47
+#define FRF_AB_GPIO15_IN_WIDTH 1
+#define FRF_AB_GPIO14_IN_LBN 46
+#define FRF_AB_GPIO14_IN_WIDTH 1
+#define FRF_AB_GPIO13_IN_LBN 45
+#define FRF_AB_GPIO13_IN_WIDTH 1
+#define FRF_AB_GPIO12_IN_LBN 44
+#define FRF_AB_GPIO12_IN_WIDTH 1
+#define FRF_AB_GPIO11_IN_LBN 43
+#define FRF_AB_GPIO11_IN_WIDTH 1
+#define FRF_AB_GPIO10_IN_LBN 42
+#define FRF_AB_GPIO10_IN_WIDTH 1
+#define FRF_AB_GPIO9_IN_LBN 41
+#define FRF_AB_GPIO9_IN_WIDTH 1
+#define FRF_AB_GPIO8_IN_LBN 40
+#define FRF_AB_GPIO8_IN_WIDTH 1
+#define FRF_AB_GPIO15_PWRUP_VALUE_LBN 39
+#define FRF_AB_GPIO15_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO14_PWRUP_VALUE_LBN 38
+#define FRF_AB_GPIO14_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO13_PWRUP_VALUE_LBN 37
+#define FRF_AB_GPIO13_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO12_PWRUP_VALUE_LBN 36
+#define FRF_AB_GPIO12_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO11_PWRUP_VALUE_LBN 35
+#define FRF_AB_GPIO11_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO10_PWRUP_VALUE_LBN 34
+#define FRF_AB_GPIO10_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO9_PWRUP_VALUE_LBN 33
+#define FRF_AB_GPIO9_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO8_PWRUP_VALUE_LBN 32
+#define FRF_AB_GPIO8_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_CLK156_OUT_EN_LBN 31
+#define FRF_AB_CLK156_OUT_EN_WIDTH 1
+#define FRF_AB_USE_NIC_CLK_LBN 30
+#define FRF_AB_USE_NIC_CLK_WIDTH 1
+#define FRF_AB_GPIO5_OEN_LBN 29
+#define FRF_AB_GPIO5_OEN_WIDTH 1
+#define FRF_AB_GPIO4_OEN_LBN 28
+#define FRF_AB_GPIO4_OEN_WIDTH 1
+#define FRF_AB_GPIO3_OEN_LBN 27
+#define FRF_AB_GPIO3_OEN_WIDTH 1
+#define FRF_AB_GPIO2_OEN_LBN 26
+#define FRF_AB_GPIO2_OEN_WIDTH 1
+#define FRF_AB_GPIO1_OEN_LBN 25
+#define FRF_AB_GPIO1_OEN_WIDTH 1
+#define FRF_AB_GPIO0_OEN_LBN 24
+#define FRF_AB_GPIO0_OEN_WIDTH 1
+#define FRF_AB_GPIO7_OUT_LBN 23
+#define FRF_AB_GPIO7_OUT_WIDTH 1
+#define FRF_AB_GPIO6_OUT_LBN 22
+#define FRF_AB_GPIO6_OUT_WIDTH 1
+#define FRF_AB_GPIO5_OUT_LBN 21
+#define FRF_AB_GPIO5_OUT_WIDTH 1
+#define FRF_AB_GPIO4_OUT_LBN 20
+#define FRF_AB_GPIO4_OUT_WIDTH 1
+#define FRF_AB_GPIO3_OUT_LBN 19
+#define FRF_AB_GPIO3_OUT_WIDTH 1
+#define FRF_AB_GPIO2_OUT_LBN 18
+#define FRF_AB_GPIO2_OUT_WIDTH 1
+#define FRF_AB_GPIO1_OUT_LBN 17
+#define FRF_AB_GPIO1_OUT_WIDTH 1
+#define FRF_AB_GPIO0_OUT_LBN 16
+#define FRF_AB_GPIO0_OUT_WIDTH 1
+#define FRF_AB_GPIO7_IN_LBN 15
+#define FRF_AB_GPIO7_IN_WIDTH 1
+#define FRF_AB_GPIO6_IN_LBN 14
+#define FRF_AB_GPIO6_IN_WIDTH 1
+#define FRF_AB_GPIO5_IN_LBN 13
+#define FRF_AB_GPIO5_IN_WIDTH 1
+#define FRF_AB_GPIO4_IN_LBN 12
+#define FRF_AB_GPIO4_IN_WIDTH 1
+#define FRF_AB_GPIO3_IN_LBN 11
+#define FRF_AB_GPIO3_IN_WIDTH 1
+#define FRF_AB_GPIO2_IN_LBN 10
+#define FRF_AB_GPIO2_IN_WIDTH 1
+#define FRF_AB_GPIO1_IN_LBN 9
+#define FRF_AB_GPIO1_IN_WIDTH 1
+#define FRF_AB_GPIO0_IN_LBN 8
+#define FRF_AB_GPIO0_IN_WIDTH 1
+#define FRF_AB_GPIO7_PWRUP_VALUE_LBN 7
+#define FRF_AB_GPIO7_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO6_PWRUP_VALUE_LBN 6
+#define FRF_AB_GPIO6_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO5_PWRUP_VALUE_LBN 5
+#define FRF_AB_GPIO5_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO4_PWRUP_VALUE_LBN 4
+#define FRF_AB_GPIO4_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO3_PWRUP_VALUE_LBN 3
+#define FRF_AB_GPIO3_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO2_PWRUP_VALUE_LBN 2
+#define FRF_AB_GPIO2_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO1_PWRUP_VALUE_LBN 1
+#define FRF_AB_GPIO1_PWRUP_VALUE_WIDTH 1
+#define FRF_AB_GPIO0_PWRUP_VALUE_LBN 0
+#define FRF_AB_GPIO0_PWRUP_VALUE_WIDTH 1
+
+/* GLB_CTL_REG: Global control register */
+#define FR_AB_GLB_CTL 0x00000220
+#define FRF_AB_EXT_PHY_RST_CTL_LBN 63
+#define FRF_AB_EXT_PHY_RST_CTL_WIDTH 1
+#define FRF_AB_XAUI_SD_RST_CTL_LBN 62
+#define FRF_AB_XAUI_SD_RST_CTL_WIDTH 1
+#define FRF_AB_PCIE_SD_RST_CTL_LBN 61
+#define FRF_AB_PCIE_SD_RST_CTL_WIDTH 1
+#define FRF_AA_PCIX_RST_CTL_LBN 60
+#define FRF_AA_PCIX_RST_CTL_WIDTH 1
+#define FRF_BB_BIU_RST_CTL_LBN 60
+#define FRF_BB_BIU_RST_CTL_WIDTH 1
+#define FRF_AB_PCIE_STKY_RST_CTL_LBN 59
+#define FRF_AB_PCIE_STKY_RST_CTL_WIDTH 1
+#define FRF_AB_PCIE_NSTKY_RST_CTL_LBN 58
+#define FRF_AB_PCIE_NSTKY_RST_CTL_WIDTH 1
+#define FRF_AB_PCIE_CORE_RST_CTL_LBN 57
+#define FRF_AB_PCIE_CORE_RST_CTL_WIDTH 1
+#define FRF_AB_XGRX_RST_CTL_LBN 56
+#define FRF_AB_XGRX_RST_CTL_WIDTH 1
+#define FRF_AB_XGTX_RST_CTL_LBN 55
+#define FRF_AB_XGTX_RST_CTL_WIDTH 1
+#define FRF_AB_EM_RST_CTL_LBN 54
+#define FRF_AB_EM_RST_CTL_WIDTH 1
+#define FRF_AB_EV_RST_CTL_LBN 53
+#define FRF_AB_EV_RST_CTL_WIDTH 1
+#define FRF_AB_SR_RST_CTL_LBN 52
+#define FRF_AB_SR_RST_CTL_WIDTH 1
+#define FRF_AB_RX_RST_CTL_LBN 51
+#define FRF_AB_RX_RST_CTL_WIDTH 1
+#define FRF_AB_TX_RST_CTL_LBN 50
+#define FRF_AB_TX_RST_CTL_WIDTH 1
+#define FRF_AB_EE_RST_CTL_LBN 49
+#define FRF_AB_EE_RST_CTL_WIDTH 1
+#define FRF_AB_CS_RST_CTL_LBN 48
+#define FRF_AB_CS_RST_CTL_WIDTH 1
+#define FRF_AB_HOT_RST_CTL_LBN 40
+#define FRF_AB_HOT_RST_CTL_WIDTH 2
+#define FRF_AB_RST_EXT_PHY_LBN 31
+#define FRF_AB_RST_EXT_PHY_WIDTH 1
+#define FRF_AB_RST_XAUI_SD_LBN 30
+#define FRF_AB_RST_XAUI_SD_WIDTH 1
+#define FRF_AB_RST_PCIE_SD_LBN 29
+#define FRF_AB_RST_PCIE_SD_WIDTH 1
+#define FRF_AA_RST_PCIX_LBN 28
+#define FRF_AA_RST_PCIX_WIDTH 1
+#define FRF_BB_RST_BIU_LBN 28
+#define FRF_BB_RST_BIU_WIDTH 1
+#define FRF_AB_RST_PCIE_STKY_LBN 27
+#define FRF_AB_RST_PCIE_STKY_WIDTH 1
+#define FRF_AB_RST_PCIE_NSTKY_LBN 26
+#define FRF_AB_RST_PCIE_NSTKY_WIDTH 1
+#define FRF_AB_RST_PCIE_CORE_LBN 25
+#define FRF_AB_RST_PCIE_CORE_WIDTH 1
+#define FRF_AB_RST_XGRX_LBN 24
+#define FRF_AB_RST_XGRX_WIDTH 1
+#define FRF_AB_RST_XGTX_LBN 23
+#define FRF_AB_RST_XGTX_WIDTH 1
+#define FRF_AB_RST_EM_LBN 22
+#define FRF_AB_RST_EM_WIDTH 1
+#define FRF_AB_RST_EV_LBN 21
+#define FRF_AB_RST_EV_WIDTH 1
+#define FRF_AB_RST_SR_LBN 20
+#define FRF_AB_RST_SR_WIDTH 1
+#define FRF_AB_RST_RX_LBN 19
+#define FRF_AB_RST_RX_WIDTH 1
+#define FRF_AB_RST_TX_LBN 18
+#define FRF_AB_RST_TX_WIDTH 1
+#define FRF_AB_RST_SF_LBN 17
+#define FRF_AB_RST_SF_WIDTH 1
+#define FRF_AB_RST_CS_LBN 16
+#define FRF_AB_RST_CS_WIDTH 1
+#define FRF_AB_INT_RST_DUR_LBN 4
+#define FRF_AB_INT_RST_DUR_WIDTH 3
+#define FRF_AB_EXT_PHY_RST_DUR_LBN 1
+#define FRF_AB_EXT_PHY_RST_DUR_WIDTH 3
+#define FFE_AB_EXT_PHY_RST_DUR_10240US 7
+#define FFE_AB_EXT_PHY_RST_DUR_5120US 6
+#define FFE_AB_EXT_PHY_RST_DUR_2560US 5
+#define FFE_AB_EXT_PHY_RST_DUR_1280US 4
+#define FFE_AB_EXT_PHY_RST_DUR_640US 3
+#define FFE_AB_EXT_PHY_RST_DUR_320US 2
+#define FFE_AB_EXT_PHY_RST_DUR_160US 1
+#define FFE_AB_EXT_PHY_RST_DUR_80US 0
+#define FRF_AB_SWRST_LBN 0
+#define FRF_AB_SWRST_WIDTH 1
+
+/* FATAL_INTR_REG_KER: Fatal interrupt register for Kernel */
+#define FR_AZ_FATAL_INTR_KER 0x00000230
+#define FRF_CZ_SRAM_PERR_INT_P_KER_EN_LBN 44
+#define FRF_CZ_SRAM_PERR_INT_P_KER_EN_WIDTH 1
+#define FRF_AB_PCI_BUSERR_INT_KER_EN_LBN 43
+#define FRF_AB_PCI_BUSERR_INT_KER_EN_WIDTH 1
+#define FRF_CZ_MBU_PERR_INT_KER_EN_LBN 43
+#define FRF_CZ_MBU_PERR_INT_KER_EN_WIDTH 1
+#define FRF_AZ_SRAM_OOB_INT_KER_EN_LBN 42
+#define FRF_AZ_SRAM_OOB_INT_KER_EN_WIDTH 1
+#define FRF_AZ_BUFID_OOB_INT_KER_EN_LBN 41
+#define FRF_AZ_BUFID_OOB_INT_KER_EN_WIDTH 1
+#define FRF_AZ_MEM_PERR_INT_KER_EN_LBN 40
+#define FRF_AZ_MEM_PERR_INT_KER_EN_WIDTH 1
+#define FRF_AZ_RBUF_OWN_INT_KER_EN_LBN 39
+#define FRF_AZ_RBUF_OWN_INT_KER_EN_WIDTH 1
+#define FRF_AZ_TBUF_OWN_INT_KER_EN_LBN 38
+#define FRF_AZ_TBUF_OWN_INT_KER_EN_WIDTH 1
+#define FRF_AZ_RDESCQ_OWN_INT_KER_EN_LBN 37
+#define FRF_AZ_RDESCQ_OWN_INT_KER_EN_WIDTH 1
+#define FRF_AZ_TDESCQ_OWN_INT_KER_EN_LBN 36
+#define FRF_AZ_TDESCQ_OWN_INT_KER_EN_WIDTH 1
+#define FRF_AZ_EVQ_OWN_INT_KER_EN_LBN 35
+#define FRF_AZ_EVQ_OWN_INT_KER_EN_WIDTH 1
+#define FRF_AZ_EVF_OFLO_INT_KER_EN_LBN 34
+#define FRF_AZ_EVF_OFLO_INT_KER_EN_WIDTH 1
+#define FRF_AZ_ILL_ADR_INT_KER_EN_LBN 33
+#define FRF_AZ_ILL_ADR_INT_KER_EN_WIDTH 1
+#define FRF_AZ_SRM_PERR_INT_KER_EN_LBN 32
+#define FRF_AZ_SRM_PERR_INT_KER_EN_WIDTH 1
+#define FRF_CZ_SRAM_PERR_INT_P_KER_LBN 12
+#define FRF_CZ_SRAM_PERR_INT_P_KER_WIDTH 1
+#define FRF_AB_PCI_BUSERR_INT_KER_LBN 11
+#define FRF_AB_PCI_BUSERR_INT_KER_WIDTH 1
+#define FRF_CZ_MBU_PERR_INT_KER_LBN 11
+#define FRF_CZ_MBU_PERR_INT_KER_WIDTH 1
+#define FRF_AZ_SRAM_OOB_INT_KER_LBN 10
+#define FRF_AZ_SRAM_OOB_INT_KER_WIDTH 1
+#define FRF_AZ_BUFID_DC_OOB_INT_KER_LBN 9
+#define FRF_AZ_BUFID_DC_OOB_INT_KER_WIDTH 1
+#define FRF_AZ_MEM_PERR_INT_KER_LBN 8
+#define FRF_AZ_MEM_PERR_INT_KER_WIDTH 1
+#define FRF_AZ_RBUF_OWN_INT_KER_LBN 7
+#define FRF_AZ_RBUF_OWN_INT_KER_WIDTH 1
+#define FRF_AZ_TBUF_OWN_INT_KER_LBN 6
+#define FRF_AZ_TBUF_OWN_INT_KER_WIDTH 1
+#define FRF_AZ_RDESCQ_OWN_INT_KER_LBN 5
+#define FRF_AZ_RDESCQ_OWN_INT_KER_WIDTH 1
+#define FRF_AZ_TDESCQ_OWN_INT_KER_LBN 4
+#define FRF_AZ_TDESCQ_OWN_INT_KER_WIDTH 1
+#define FRF_AZ_EVQ_OWN_INT_KER_LBN 3
+#define FRF_AZ_EVQ_OWN_INT_KER_WIDTH 1
+#define FRF_AZ_EVF_OFLO_INT_KER_LBN 2
+#define FRF_AZ_EVF_OFLO_INT_KER_WIDTH 1
+#define FRF_AZ_ILL_ADR_INT_KER_LBN 1
+#define FRF_AZ_ILL_ADR_INT_KER_WIDTH 1
+#define FRF_AZ_SRM_PERR_INT_KER_LBN 0
+#define FRF_AZ_SRM_PERR_INT_KER_WIDTH 1
+
+/* FATAL_INTR_REG_CHAR: Fatal interrupt register for Char */
+#define FR_BZ_FATAL_INTR_CHAR 0x00000240
+#define FRF_CZ_SRAM_PERR_INT_P_CHAR_EN_LBN 44
+#define FRF_CZ_SRAM_PERR_INT_P_CHAR_EN_WIDTH 1
+#define FRF_BB_PCI_BUSERR_INT_CHAR_EN_LBN 43
+#define FRF_BB_PCI_BUSERR_INT_CHAR_EN_WIDTH 1
+#define FRF_CZ_MBU_PERR_INT_CHAR_EN_LBN 43
+#define FRF_CZ_MBU_PERR_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_SRAM_OOB_INT_CHAR_EN_LBN 42
+#define FRF_BZ_SRAM_OOB_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_BUFID_OOB_INT_CHAR_EN_LBN 41
+#define FRF_BZ_BUFID_OOB_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_MEM_PERR_INT_CHAR_EN_LBN 40
+#define FRF_BZ_MEM_PERR_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_RBUF_OWN_INT_CHAR_EN_LBN 39
+#define FRF_BZ_RBUF_OWN_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_TBUF_OWN_INT_CHAR_EN_LBN 38
+#define FRF_BZ_TBUF_OWN_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_RDESCQ_OWN_INT_CHAR_EN_LBN 37
+#define FRF_BZ_RDESCQ_OWN_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_TDESCQ_OWN_INT_CHAR_EN_LBN 36
+#define FRF_BZ_TDESCQ_OWN_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_EVQ_OWN_INT_CHAR_EN_LBN 35
+#define FRF_BZ_EVQ_OWN_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_EVF_OFLO_INT_CHAR_EN_LBN 34
+#define FRF_BZ_EVF_OFLO_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_ILL_ADR_INT_CHAR_EN_LBN 33
+#define FRF_BZ_ILL_ADR_INT_CHAR_EN_WIDTH 1
+#define FRF_BZ_SRM_PERR_INT_CHAR_EN_LBN 32
+#define FRF_BZ_SRM_PERR_INT_CHAR_EN_WIDTH 1
+#define FRF_CZ_SRAM_PERR_INT_P_CHAR_LBN 12
+#define FRF_CZ_SRAM_PERR_INT_P_CHAR_WIDTH 1
+#define FRF_BB_PCI_BUSERR_INT_CHAR_LBN 11
+#define FRF_BB_PCI_BUSERR_INT_CHAR_WIDTH 1
+#define FRF_CZ_MBU_PERR_INT_CHAR_LBN 11
+#define FRF_CZ_MBU_PERR_INT_CHAR_WIDTH 1
+#define FRF_BZ_SRAM_OOB_INT_CHAR_LBN 10
+#define FRF_BZ_SRAM_OOB_INT_CHAR_WIDTH 1
+#define FRF_BZ_BUFID_DC_OOB_INT_CHAR_LBN 9
+#define FRF_BZ_BUFID_DC_OOB_INT_CHAR_WIDTH 1
+#define FRF_BZ_MEM_PERR_INT_CHAR_LBN 8
+#define FRF_BZ_MEM_PERR_INT_CHAR_WIDTH 1
+#define FRF_BZ_RBUF_OWN_INT_CHAR_LBN 7
+#define FRF_BZ_RBUF_OWN_INT_CHAR_WIDTH 1
+#define FRF_BZ_TBUF_OWN_INT_CHAR_LBN 6
+#define FRF_BZ_TBUF_OWN_INT_CHAR_WIDTH 1
+#define FRF_BZ_RDESCQ_OWN_INT_CHAR_LBN 5
+#define FRF_BZ_RDESCQ_OWN_INT_CHAR_WIDTH 1
+#define FRF_BZ_TDESCQ_OWN_INT_CHAR_LBN 4
+#define FRF_BZ_TDESCQ_OWN_INT_CHAR_WIDTH 1
+#define FRF_BZ_EVQ_OWN_INT_CHAR_LBN 3
+#define FRF_BZ_EVQ_OWN_INT_CHAR_WIDTH 1
+#define FRF_BZ_EVF_OFLO_INT_CHAR_LBN 2
+#define FRF_BZ_EVF_OFLO_INT_CHAR_WIDTH 1
+#define FRF_BZ_ILL_ADR_INT_CHAR_LBN 1
+#define FRF_BZ_ILL_ADR_INT_CHAR_WIDTH 1
+#define FRF_BZ_SRM_PERR_INT_CHAR_LBN 0
+#define FRF_BZ_SRM_PERR_INT_CHAR_WIDTH 1
+
+/* DP_CTRL_REG: Datapath control register */
+#define FR_BZ_DP_CTRL 0x00000250
+#define FRF_BZ_FLS_EVQ_ID_LBN 0
+#define FRF_BZ_FLS_EVQ_ID_WIDTH 12
+
+/* MEM_STAT_REG: Memory status register */
+#define FR_AZ_MEM_STAT 0x00000260
+#define FRF_AB_MEM_PERR_VEC_LBN 53
+#define FRF_AB_MEM_PERR_VEC_WIDTH 38
+#define FRF_AB_MBIST_CORR_LBN 38
+#define FRF_AB_MBIST_CORR_WIDTH 15
+#define FRF_AB_MBIST_ERR_LBN 0
+#define FRF_AB_MBIST_ERR_WIDTH 40
+#define FRF_CZ_MEM_PERR_VEC_LBN 0
+#define FRF_CZ_MEM_PERR_VEC_WIDTH 35
+
+/* CS_DEBUG_REG: Debug register */
+#define FR_AZ_CS_DEBUG 0x00000270
+#define FRF_AB_GLB_DEBUG2_SEL_LBN 50
+#define FRF_AB_GLB_DEBUG2_SEL_WIDTH 3
+#define FRF_AB_DEBUG_BLK_SEL2_LBN 47
+#define FRF_AB_DEBUG_BLK_SEL2_WIDTH 3
+#define FRF_AB_DEBUG_BLK_SEL1_LBN 44
+#define FRF_AB_DEBUG_BLK_SEL1_WIDTH 3
+#define FRF_AB_DEBUG_BLK_SEL0_LBN 41
+#define FRF_AB_DEBUG_BLK_SEL0_WIDTH 3
+#define FRF_CZ_CS_PORT_NUM_LBN 40
+#define FRF_CZ_CS_PORT_NUM_WIDTH 2
+#define FRF_AB_MISC_DEBUG_ADDR_LBN 36
+#define FRF_AB_MISC_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_SERDES_DEBUG_ADDR_LBN 31
+#define FRF_AB_SERDES_DEBUG_ADDR_WIDTH 5
+#define FRF_CZ_CS_PORT_FPE_LBN 1
+#define FRF_CZ_CS_PORT_FPE_WIDTH 35
+#define FRF_AB_EM_DEBUG_ADDR_LBN 26
+#define FRF_AB_EM_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_SR_DEBUG_ADDR_LBN 21
+#define FRF_AB_SR_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_EV_DEBUG_ADDR_LBN 16
+#define FRF_AB_EV_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_RX_DEBUG_ADDR_LBN 11
+#define FRF_AB_RX_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_TX_DEBUG_ADDR_LBN 6
+#define FRF_AB_TX_DEBUG_ADDR_WIDTH 5
+#define FRF_AB_CS_BIU_DEBUG_ADDR_LBN 1
+#define FRF_AB_CS_BIU_DEBUG_ADDR_WIDTH 5
+#define FRF_AZ_CS_DEBUG_EN_LBN 0
+#define FRF_AZ_CS_DEBUG_EN_WIDTH 1
+
+/* DRIVER_REG: Driver scratch register [0-7] */
+#define FR_AZ_DRIVER 0x00000280
+#define FR_AZ_DRIVER_STEP 16
+#define FR_AZ_DRIVER_ROWS 8
+#define FRF_AZ_DRIVER_DW0_LBN 0
+#define FRF_AZ_DRIVER_DW0_WIDTH 32
+
+/* ALTERA_BUILD_REG: Altera build register */
+#define FR_AZ_ALTERA_BUILD 0x00000300
+#define FRF_AZ_ALTERA_BUILD_VER_LBN 0
+#define FRF_AZ_ALTERA_BUILD_VER_WIDTH 32
+
+/* CSR_SPARE_REG: Spare register */
+#define FR_AZ_CSR_SPARE 0x00000310
+#define FRF_AB_MEM_PERR_EN_LBN 64
+#define FRF_AB_MEM_PERR_EN_WIDTH 38
+#define FRF_CZ_MEM_PERR_EN_LBN 64
+#define FRF_CZ_MEM_PERR_EN_WIDTH 35
+#define FRF_AB_MEM_PERR_EN_TX_DATA_LBN 72
+#define FRF_AB_MEM_PERR_EN_TX_DATA_WIDTH 2
+#define FRF_AZ_CSR_SPARE_BITS_LBN 0
+#define FRF_AZ_CSR_SPARE_BITS_WIDTH 32
+
+/* PCIE_SD_CTL0123_REG: PCIE SerDes control register 0 to 3 */
+#define FR_AB_PCIE_SD_CTL0123 0x00000320
+#define FRF_AB_PCIE_TESTSIG_H_LBN 96
+#define FRF_AB_PCIE_TESTSIG_H_WIDTH 19
+#define FRF_AB_PCIE_TESTSIG_L_LBN 64
+#define FRF_AB_PCIE_TESTSIG_L_WIDTH 19
+#define FRF_AB_PCIE_OFFSET_LBN 56
+#define FRF_AB_PCIE_OFFSET_WIDTH 8
+#define FRF_AB_PCIE_OFFSETEN_H_LBN 55
+#define FRF_AB_PCIE_OFFSETEN_H_WIDTH 1
+#define FRF_AB_PCIE_OFFSETEN_L_LBN 54
+#define FRF_AB_PCIE_OFFSETEN_L_WIDTH 1
+#define FRF_AB_PCIE_HIVMODE_H_LBN 53
+#define FRF_AB_PCIE_HIVMODE_H_WIDTH 1
+#define FRF_AB_PCIE_HIVMODE_L_LBN 52
+#define FRF_AB_PCIE_HIVMODE_L_WIDTH 1
+#define FRF_AB_PCIE_PARRESET_H_LBN 51
+#define FRF_AB_PCIE_PARRESET_H_WIDTH 1
+#define FRF_AB_PCIE_PARRESET_L_LBN 50
+#define FRF_AB_PCIE_PARRESET_L_WIDTH 1
+#define FRF_AB_PCIE_LPBKWDRV_H_LBN 49
+#define FRF_AB_PCIE_LPBKWDRV_H_WIDTH 1
+#define FRF_AB_PCIE_LPBKWDRV_L_LBN 48
+#define FRF_AB_PCIE_LPBKWDRV_L_WIDTH 1
+#define FRF_AB_PCIE_LPBK_LBN 40
+#define FRF_AB_PCIE_LPBK_WIDTH 8
+#define FRF_AB_PCIE_PARLPBK_LBN 32
+#define FRF_AB_PCIE_PARLPBK_WIDTH 8
+#define FRF_AB_PCIE_RXTERMADJ_H_LBN 30
+#define FRF_AB_PCIE_RXTERMADJ_H_WIDTH 2
+#define FRF_AB_PCIE_RXTERMADJ_L_LBN 28
+#define FRF_AB_PCIE_RXTERMADJ_L_WIDTH 2
+#define FFE_AB_PCIE_RXTERMADJ_MIN15PCNT 3
+#define FFE_AB_PCIE_RXTERMADJ_PL10PCNT 2
+#define FFE_AB_PCIE_RXTERMADJ_MIN17PCNT 1
+#define FFE_AB_PCIE_RXTERMADJ_NOMNL 0
+#define FRF_AB_PCIE_TXTERMADJ_H_LBN 26
+#define FRF_AB_PCIE_TXTERMADJ_H_WIDTH 2
+#define FRF_AB_PCIE_TXTERMADJ_L_LBN 24
+#define FRF_AB_PCIE_TXTERMADJ_L_WIDTH 2
+#define FFE_AB_PCIE_TXTERMADJ_MIN15PCNT 3
+#define FFE_AB_PCIE_TXTERMADJ_PL10PCNT 2
+#define FFE_AB_PCIE_TXTERMADJ_MIN17PCNT 1
+#define FFE_AB_PCIE_TXTERMADJ_NOMNL 0
+#define FRF_AB_PCIE_RXEQCTL_H_LBN 18
+#define FRF_AB_PCIE_RXEQCTL_H_WIDTH 2
+#define FRF_AB_PCIE_RXEQCTL_L_LBN 16
+#define FRF_AB_PCIE_RXEQCTL_L_WIDTH 2
+#define FFE_AB_PCIE_RXEQCTL_OFF_ALT 3
+#define FFE_AB_PCIE_RXEQCTL_OFF 2
+#define FFE_AB_PCIE_RXEQCTL_MIN 1
+#define FFE_AB_PCIE_RXEQCTL_MAX 0
+#define FRF_AB_PCIE_HIDRV_LBN 8
+#define FRF_AB_PCIE_HIDRV_WIDTH 8
+#define FRF_AB_PCIE_LODRV_LBN 0
+#define FRF_AB_PCIE_LODRV_WIDTH 8
+
+/* PCIE_SD_CTL45_REG: PCIE SerDes control register 4 and 5 */
+#define FR_AB_PCIE_SD_CTL45 0x00000330
+#define FRF_AB_PCIE_DTX7_LBN 60
+#define FRF_AB_PCIE_DTX7_WIDTH 4
+#define FRF_AB_PCIE_DTX6_LBN 56
+#define FRF_AB_PCIE_DTX6_WIDTH 4
+#define FRF_AB_PCIE_DTX5_LBN 52
+#define FRF_AB_PCIE_DTX5_WIDTH 4
+#define FRF_AB_PCIE_DTX4_LBN 48
+#define FRF_AB_PCIE_DTX4_WIDTH 4
+#define FRF_AB_PCIE_DTX3_LBN 44
+#define FRF_AB_PCIE_DTX3_WIDTH 4
+#define FRF_AB_PCIE_DTX2_LBN 40
+#define FRF_AB_PCIE_DTX2_WIDTH 4
+#define FRF_AB_PCIE_DTX1_LBN 36
+#define FRF_AB_PCIE_DTX1_WIDTH 4
+#define FRF_AB_PCIE_DTX0_LBN 32
+#define FRF_AB_PCIE_DTX0_WIDTH 4
+#define FRF_AB_PCIE_DEQ7_LBN 28
+#define FRF_AB_PCIE_DEQ7_WIDTH 4
+#define FRF_AB_PCIE_DEQ6_LBN 24
+#define FRF_AB_PCIE_DEQ6_WIDTH 4
+#define FRF_AB_PCIE_DEQ5_LBN 20
+#define FRF_AB_PCIE_DEQ5_WIDTH 4
+#define FRF_AB_PCIE_DEQ4_LBN 16
+#define FRF_AB_PCIE_DEQ4_WIDTH 4
+#define FRF_AB_PCIE_DEQ3_LBN 12
+#define FRF_AB_PCIE_DEQ3_WIDTH 4
+#define FRF_AB_PCIE_DEQ2_LBN 8
+#define FRF_AB_PCIE_DEQ2_WIDTH 4
+#define FRF_AB_PCIE_DEQ1_LBN 4
+#define FRF_AB_PCIE_DEQ1_WIDTH 4
+#define FRF_AB_PCIE_DEQ0_LBN 0
+#define FRF_AB_PCIE_DEQ0_WIDTH 4
+
+/* PCIE_PCS_CTL_STAT_REG: PCIE PCS control and status register */
+#define FR_AB_PCIE_PCS_CTL_STAT 0x00000340
+#define FRF_AB_PCIE_PRBSERRCOUNT0_H_LBN 52
+#define FRF_AB_PCIE_PRBSERRCOUNT0_H_WIDTH 4
+#define FRF_AB_PCIE_PRBSERRCOUNT0_L_LBN 48
+#define FRF_AB_PCIE_PRBSERRCOUNT0_L_WIDTH 4
+#define FRF_AB_PCIE_PRBSERR_LBN 40
+#define FRF_AB_PCIE_PRBSERR_WIDTH 8
+#define FRF_AB_PCIE_PRBSERRH0_LBN 32
+#define FRF_AB_PCIE_PRBSERRH0_WIDTH 8
+#define FRF_AB_PCIE_FASTINIT_H_LBN 15
+#define FRF_AB_PCIE_FASTINIT_H_WIDTH 1
+#define FRF_AB_PCIE_FASTINIT_L_LBN 14
+#define FRF_AB_PCIE_FASTINIT_L_WIDTH 1
+#define FRF_AB_PCIE_CTCDISABLE_H_LBN 13
+#define FRF_AB_PCIE_CTCDISABLE_H_WIDTH 1
+#define FRF_AB_PCIE_CTCDISABLE_L_LBN 12
+#define FRF_AB_PCIE_CTCDISABLE_L_WIDTH 1
+#define FRF_AB_PCIE_PRBSSYNC_H_LBN 11
+#define FRF_AB_PCIE_PRBSSYNC_H_WIDTH 1
+#define FRF_AB_PCIE_PRBSSYNC_L_LBN 10
+#define FRF_AB_PCIE_PRBSSYNC_L_WIDTH 1
+#define FRF_AB_PCIE_PRBSERRACK_H_LBN 9
+#define FRF_AB_PCIE_PRBSERRACK_H_WIDTH 1
+#define FRF_AB_PCIE_PRBSERRACK_L_LBN 8
+#define FRF_AB_PCIE_PRBSERRACK_L_WIDTH 1
+#define FRF_AB_PCIE_PRBSSEL_LBN 0
+#define FRF_AB_PCIE_PRBSSEL_WIDTH 8
+
+/* DEBUG_DATA_OUT_REG: Live Debug and Debug 2 out ports */
+#define FR_BB_DEBUG_DATA_OUT 0x00000350
+#define FRF_BB_DEBUG2_PORT_LBN 25
+#define FRF_BB_DEBUG2_PORT_WIDTH 15
+#define FRF_BB_DEBUG1_PORT_LBN 0
+#define FRF_BB_DEBUG1_PORT_WIDTH 25
+
+/* EVQ_RPTR_REGP0: Event queue read pointer register */
+#define FR_BZ_EVQ_RPTR_P0 0x00000400
+#define FR_BZ_EVQ_RPTR_P0_STEP 8192
+#define FR_BZ_EVQ_RPTR_P0_ROWS 1024
+/* EVQ_RPTR_REG_KER: Event queue read pointer register */
+#define FR_AA_EVQ_RPTR_KER 0x00011b00
+#define FR_AA_EVQ_RPTR_KER_STEP 4
+#define FR_AA_EVQ_RPTR_KER_ROWS 4
+/* EVQ_RPTR_REG: Event queue read pointer register */
+#define FR_BZ_EVQ_RPTR 0x00fa0000
+#define FR_BZ_EVQ_RPTR_STEP 16
+#define FR_BB_EVQ_RPTR_ROWS 4096
+#define FR_CZ_EVQ_RPTR_ROWS 1024
+/* EVQ_RPTR_REGP123: Event queue read pointer register */
+#define FR_BB_EVQ_RPTR_P123 0x01000400
+#define FR_BB_EVQ_RPTR_P123_STEP 8192
+#define FR_BB_EVQ_RPTR_P123_ROWS 3072
+#define FRF_AZ_EVQ_RPTR_VLD_LBN 15
+#define FRF_AZ_EVQ_RPTR_VLD_WIDTH 1
+#define FRF_AZ_EVQ_RPTR_LBN 0
+#define FRF_AZ_EVQ_RPTR_WIDTH 15
+
+/* TIMER_COMMAND_REGP0: Timer Command Registers */
+#define FR_BZ_TIMER_COMMAND_P0 0x00000420
+#define FR_BZ_TIMER_COMMAND_P0_STEP 8192
+#define FR_BZ_TIMER_COMMAND_P0_ROWS 1024
+/* TIMER_COMMAND_REG_KER: Timer Command Registers */
+#define FR_AA_TIMER_COMMAND_KER 0x00000420
+#define FR_AA_TIMER_COMMAND_KER_STEP 8192
+#define FR_AA_TIMER_COMMAND_KER_ROWS 4
+/* TIMER_COMMAND_REGP123: Timer Command Registers */
+#define FR_BB_TIMER_COMMAND_P123 0x01000420
+#define FR_BB_TIMER_COMMAND_P123_STEP 8192
+#define FR_BB_TIMER_COMMAND_P123_ROWS 3072
+#define FRF_CZ_TC_TIMER_MODE_LBN 14
+#define FRF_CZ_TC_TIMER_MODE_WIDTH 2
+#define FRF_AB_TC_TIMER_MODE_LBN 12
+#define FRF_AB_TC_TIMER_MODE_WIDTH 2
+#define FRF_CZ_TC_TIMER_VAL_LBN 0
+#define FRF_CZ_TC_TIMER_VAL_WIDTH 14
+#define FRF_AB_TC_TIMER_VAL_LBN 0
+#define FRF_AB_TC_TIMER_VAL_WIDTH 12
+
+/* DRV_EV_REG: Driver generated event register */
+#define FR_AZ_DRV_EV 0x00000440
+#define FRF_AZ_DRV_EV_QID_LBN 64
+#define FRF_AZ_DRV_EV_QID_WIDTH 12
+#define FRF_AZ_DRV_EV_DATA_LBN 0
+#define FRF_AZ_DRV_EV_DATA_WIDTH 64
+
+/* EVQ_CTL_REG: Event queue control register */
+#define FR_AZ_EVQ_CTL 0x00000450
+#define FRF_CZ_RX_EVQ_WAKEUP_MASK_LBN 15
+#define FRF_CZ_RX_EVQ_WAKEUP_MASK_WIDTH 10
+#define FRF_BB_RX_EVQ_WAKEUP_MASK_LBN 15
+#define FRF_BB_RX_EVQ_WAKEUP_MASK_WIDTH 6
+#define FRF_AZ_EVQ_OWNERR_CTL_LBN 14
+#define FRF_AZ_EVQ_OWNERR_CTL_WIDTH 1
+#define FRF_AZ_EVQ_FIFO_AF_TH_LBN 7
+#define FRF_AZ_EVQ_FIFO_AF_TH_WIDTH 7
+#define FRF_AZ_EVQ_FIFO_NOTAF_TH_LBN 0
+#define FRF_AZ_EVQ_FIFO_NOTAF_TH_WIDTH 7
+
+/* EVQ_CNT1_REG: Event counter 1 register */
+#define FR_AZ_EVQ_CNT1 0x00000460
+#define FRF_AZ_EVQ_CNT_PRE_FIFO_LBN 120
+#define FRF_AZ_EVQ_CNT_PRE_FIFO_WIDTH 7
+#define FRF_AZ_EVQ_CNT_TOBIU_LBN 100
+#define FRF_AZ_EVQ_CNT_TOBIU_WIDTH 20
+#define FRF_AZ_EVQ_TX_REQ_CNT_LBN 80
+#define FRF_AZ_EVQ_TX_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_RX_REQ_CNT_LBN 60
+#define FRF_AZ_EVQ_RX_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_EM_REQ_CNT_LBN 40
+#define FRF_AZ_EVQ_EM_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_CSR_REQ_CNT_LBN 20
+#define FRF_AZ_EVQ_CSR_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_ERR_REQ_CNT_LBN 0
+#define FRF_AZ_EVQ_ERR_REQ_CNT_WIDTH 20
+
+/* EVQ_CNT2_REG: Event counter 2 register */
+#define FR_AZ_EVQ_CNT2 0x00000470
+#define FRF_AZ_EVQ_UPD_REQ_CNT_LBN 104
+#define FRF_AZ_EVQ_UPD_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_CLR_REQ_CNT_LBN 84
+#define FRF_AZ_EVQ_CLR_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_RDY_CNT_LBN 80
+#define FRF_AZ_EVQ_RDY_CNT_WIDTH 4
+#define FRF_AZ_EVQ_WU_REQ_CNT_LBN 60
+#define FRF_AZ_EVQ_WU_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_WET_REQ_CNT_LBN 40
+#define FRF_AZ_EVQ_WET_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_INIT_REQ_CNT_LBN 20
+#define FRF_AZ_EVQ_INIT_REQ_CNT_WIDTH 20
+#define FRF_AZ_EVQ_TM_REQ_CNT_LBN 0
+#define FRF_AZ_EVQ_TM_REQ_CNT_WIDTH 20
+
+/* USR_EV_REG: Event mailbox register */
+#define FR_CZ_USR_EV 0x00000540
+#define FR_CZ_USR_EV_STEP 8192
+#define FR_CZ_USR_EV_ROWS 1024
+#define FRF_CZ_USR_EV_DATA_LBN 0
+#define FRF_CZ_USR_EV_DATA_WIDTH 32
+
+/* BUF_TBL_CFG_REG: Buffer table configuration register */
+#define FR_AZ_BUF_TBL_CFG 0x00000600
+#define FRF_AZ_BUF_TBL_MODE_LBN 3
+#define FRF_AZ_BUF_TBL_MODE_WIDTH 1
+
+/* SRM_RX_DC_CFG_REG: SRAM receive descriptor cache configuration register */
+#define FR_AZ_SRM_RX_DC_CFG 0x00000610
+#define FRF_AZ_SRM_CLK_TMP_EN_LBN 21
+#define FRF_AZ_SRM_CLK_TMP_EN_WIDTH 1
+#define FRF_AZ_SRM_RX_DC_BASE_ADR_LBN 0
+#define FRF_AZ_SRM_RX_DC_BASE_ADR_WIDTH 21
+
+/* SRM_TX_DC_CFG_REG: SRAM transmit descriptor cache configuration register */
+#define FR_AZ_SRM_TX_DC_CFG 0x00000620
+#define FRF_AZ_SRM_TX_DC_BASE_ADR_LBN 0
+#define FRF_AZ_SRM_TX_DC_BASE_ADR_WIDTH 21
+
+/* SRM_CFG_REG: SRAM configuration register */
+#define FR_AZ_SRM_CFG 0x00000630
+#define FRF_AZ_SRM_OOB_ADR_INTEN_LBN 5
+#define FRF_AZ_SRM_OOB_ADR_INTEN_WIDTH 1
+#define FRF_AZ_SRM_OOB_BUF_INTEN_LBN 4
+#define FRF_AZ_SRM_OOB_BUF_INTEN_WIDTH 1
+#define FRF_AZ_SRM_INIT_EN_LBN 3
+#define FRF_AZ_SRM_INIT_EN_WIDTH 1
+#define FRF_AZ_SRM_NUM_BANK_LBN 2
+#define FRF_AZ_SRM_NUM_BANK_WIDTH 1
+#define FRF_AZ_SRM_BANK_SIZE_LBN 0
+#define FRF_AZ_SRM_BANK_SIZE_WIDTH 2
+
+/* BUF_TBL_UPD_REG: Buffer table update register */
+#define FR_AZ_BUF_TBL_UPD 0x00000650
+#define FRF_AZ_BUF_UPD_CMD_LBN 63
+#define FRF_AZ_BUF_UPD_CMD_WIDTH 1
+#define FRF_AZ_BUF_CLR_CMD_LBN 62
+#define FRF_AZ_BUF_CLR_CMD_WIDTH 1
+#define FRF_AZ_BUF_CLR_END_ID_LBN 32
+#define FRF_AZ_BUF_CLR_END_ID_WIDTH 20
+#define FRF_AZ_BUF_CLR_START_ID_LBN 0
+#define FRF_AZ_BUF_CLR_START_ID_WIDTH 20
+
+/* SRM_UPD_EVQ_REG: Buffer table update register */
+#define FR_AZ_SRM_UPD_EVQ 0x00000660
+#define FRF_AZ_SRM_UPD_EVQ_ID_LBN 0
+#define FRF_AZ_SRM_UPD_EVQ_ID_WIDTH 12
+
+/* SRAM_PARITY_REG: SRAM parity register. */
+#define FR_AZ_SRAM_PARITY 0x00000670
+#define FRF_CZ_BYPASS_ECC_LBN 3
+#define FRF_CZ_BYPASS_ECC_WIDTH 1
+#define FRF_CZ_SEC_INT_LBN 2
+#define FRF_CZ_SEC_INT_WIDTH 1
+#define FRF_CZ_FORCE_SRAM_DOUBLE_ERR_LBN 1
+#define FRF_CZ_FORCE_SRAM_DOUBLE_ERR_WIDTH 1
+#define FRF_AB_FORCE_SRAM_PERR_LBN 0
+#define FRF_AB_FORCE_SRAM_PERR_WIDTH 1
+#define FRF_CZ_FORCE_SRAM_SINGLE_ERR_LBN 0
+#define FRF_CZ_FORCE_SRAM_SINGLE_ERR_WIDTH 1
+
+/* RX_CFG_REG: Receive configuration register */
+#define FR_AZ_RX_CFG 0x00000800
+#define FRF_CZ_RX_MIN_KBUF_SIZE_LBN 72
+#define FRF_CZ_RX_MIN_KBUF_SIZE_WIDTH 14
+#define FRF_CZ_RX_HDR_SPLIT_EN_LBN 71
+#define FRF_CZ_RX_HDR_SPLIT_EN_WIDTH 1
+#define FRF_CZ_RX_HDR_SPLIT_PLD_BUF_SIZE_LBN 62
+#define FRF_CZ_RX_HDR_SPLIT_PLD_BUF_SIZE_WIDTH 9
+#define FRF_CZ_RX_HDR_SPLIT_HDR_BUF_SIZE_LBN 53
+#define FRF_CZ_RX_HDR_SPLIT_HDR_BUF_SIZE_WIDTH 9
+#define FRF_CZ_RX_PRE_RFF_IPG_LBN 49
+#define FRF_CZ_RX_PRE_RFF_IPG_WIDTH 4
+#define FRF_BZ_RX_TCP_SUP_LBN 48
+#define FRF_BZ_RX_TCP_SUP_WIDTH 1
+#define FRF_BZ_RX_INGR_EN_LBN 47
+#define FRF_BZ_RX_INGR_EN_WIDTH 1
+#define FRF_BZ_RX_IP_HASH_LBN 46
+#define FRF_BZ_RX_IP_HASH_WIDTH 1
+#define FRF_BZ_RX_HASH_ALG_LBN 45
+#define FRF_BZ_RX_HASH_ALG_WIDTH 1
+#define FRF_BZ_RX_HASH_INSRT_HDR_LBN 44
+#define FRF_BZ_RX_HASH_INSRT_HDR_WIDTH 1
+#define FRF_BZ_RX_DESC_PUSH_EN_LBN 43
+#define FRF_BZ_RX_DESC_PUSH_EN_WIDTH 1
+#define FRF_BZ_RX_RDW_PATCH_EN_LBN 42
+#define FRF_BZ_RX_RDW_PATCH_EN_WIDTH 1
+#define FRF_BB_RX_PCI_BURST_SIZE_LBN 39
+#define FRF_BB_RX_PCI_BURST_SIZE_WIDTH 3
+#define FRF_BZ_RX_OWNERR_CTL_LBN 38
+#define FRF_BZ_RX_OWNERR_CTL_WIDTH 1
+