From d8274869d742c3d8082e1428de47e54d12104928 Mon Sep 17 00:00:00 2001
From: Dave Olson <dave.olson@qlogic.com>
Date: Fri, 21 Dec 2007 01:50:59 -0800
Subject: IB/ipath: Generalize some xxx_SHIFT macros

In preparation for upcoming chips that have different values for
INFINIPATH_R_PORTENABLE_SHIFT, INFINIPATH_R_INTRAVAIL_SHIFT,
INFINIPATH_R_TAILUPD_SHIFT, and portcfg_shift, remove the shared
#defines and use device-specific variables instead.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_iba6110.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index ddbebe4bdb27..c272a7392e22 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -296,6 +296,12 @@ static const struct ipath_cregs ipath_ht_cregs = {
 #define INFINIPATH_RT_BUFSIZE_MASK 0x3FFFULL
 #define INFINIPATH_RT_BUFSIZE_SHIFT 48
 
+#define INFINIPATH_R_INTRAVAIL_SHIFT 16
+#define INFINIPATH_R_TAILUPD_SHIFT 31
+
+/* kr_xgxsconfig bits */
+#define INFINIPATH_XGXS_RESET          0x7ULL
+
 /*
  * masks and bits that are different in different chips, or present only
  * in one
@@ -1079,6 +1085,12 @@ static void ipath_init_ht_variables(struct ipath_devdata *dd)
 	dd->ipath_gpio_sda = IPATH_GPIO_SDA;
 	dd->ipath_gpio_scl = IPATH_GPIO_SCL;
 
+	/* Fill in shifts for RcvCtrl. */
+	dd->ipath_r_portenable_shift = INFINIPATH_R_PORTENABLE_SHIFT;
+	dd->ipath_r_intravail_shift = INFINIPATH_R_INTRAVAIL_SHIFT;
+	dd->ipath_r_tailupd_shift = INFINIPATH_R_TAILUPD_SHIFT;
+	dd->ipath_r_portcfg_shift = 0; /* Not on IBA6110 */
+
 	dd->ipath_i_bitsextant =
 		(INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) |
 		(INFINIPATH_I_RCVAVAIL_MASK <<
-- 
cgit v1.2.3-59-g8ed1b


From 3029fcc3d44530601f19fd8f551ac195d3a918d7 Mon Sep 17 00:00:00 2001
From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Sun, 6 Jan 2008 21:02:34 -0800
Subject: IB/ipath: Export hardware counters more consistently

Various hardware counters are exported via the ipath file system (since
it is binary data).  The old file format was very dependent on the HW
offsets for these registers.  Newer HCA chips can have different
counters at different offsets.  This patch adds a level of indirection
to make the file format consistent across HCAs.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_common.h  |  20 +++-
 drivers/infiniband/hw/ipath/ipath_fs.c      |  11 +-
 drivers/infiniband/hw/ipath/ipath_iba6110.c | 159 +++++++++++++++++++++++++++-
 drivers/infiniband/hw/ipath/ipath_iba6120.c | 153 +++++++++++++++++++++++++-
 drivers/infiniband/hw/ipath/ipath_kernel.h  |   2 +
 5 files changed, 328 insertions(+), 17 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index 851df8a75e79..aa780e7f2418 100644
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -579,7 +579,7 @@ struct ipath_flash {
 struct infinipath_counters {
 	__u64 LBIntCnt;
 	__u64 LBFlowStallCnt;
-	__u64 Reserved1;
+	__u64 TxSDmaDescCnt;	/* was Reserved1 */
 	__u64 TxUnsupVLErrCnt;
 	__u64 TxDataPktCnt;
 	__u64 TxFlowPktCnt;
@@ -615,12 +615,26 @@ struct infinipath_counters {
 	__u64 RxP6HdrEgrOvflCnt;
 	__u64 RxP7HdrEgrOvflCnt;
 	__u64 RxP8HdrEgrOvflCnt;
-	__u64 Reserved6;
-	__u64 Reserved7;
+	__u64 RxP9HdrEgrOvflCnt;	/* was Reserved6 */
+	__u64 RxP10HdrEgrOvflCnt;	/* was Reserved7 */
+	__u64 RxP11HdrEgrOvflCnt;	/* new for IBA7220 */
+	__u64 RxP12HdrEgrOvflCnt;	/* new for IBA7220 */
+	__u64 RxP13HdrEgrOvflCnt;	/* new for IBA7220 */
+	__u64 RxP14HdrEgrOvflCnt;	/* new for IBA7220 */
+	__u64 RxP15HdrEgrOvflCnt;	/* new for IBA7220 */
+	__u64 RxP16HdrEgrOvflCnt;	/* new for IBA7220 */
 	__u64 IBStatusChangeCnt;
 	__u64 IBLinkErrRecoveryCnt;
 	__u64 IBLinkDownedCnt;
 	__u64 IBSymbolErrCnt;
+	/* The following are new for IBA7220 */
+	__u64 RxVL15DroppedPktCnt;
+	__u64 RxOtherLocalPhyErrCnt;
+	__u64 PcieRetryBufDiagQwordCnt;
+	__u64 ExcessBufferOvflCnt;
+	__u64 LocalLinkIntegrityErrCnt;
+	__u64 RxVlErrCnt;
+	__u64 RxDlidFltrCnt;
 };
 
 /*
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 262c25db05cd..52325e009a1f 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -108,21 +108,16 @@ static const struct file_operations atomic_stats_ops = {
 	.read = atomic_stats_read,
 };
 
-#define NUM_COUNTERS sizeof(struct infinipath_counters) / sizeof(u64)
-
 static ssize_t atomic_counters_read(struct file *file, char __user *buf,
 				    size_t count, loff_t *ppos)
 {
-	u64 counters[NUM_COUNTERS];
-	u16 i;
+	struct infinipath_counters counters;
 	struct ipath_devdata *dd;
 
 	dd = file->f_path.dentry->d_inode->i_private;
+	dd->ipath_f_read_counters(dd, &counters);
 
-	for (i = 0; i < NUM_COUNTERS; i++)
-		counters[i] = ipath_snap_cntr(dd, i);
-
-	return simple_read_from_buffer(buf, count, ppos, counters,
+	return simple_read_from_buffer(buf, count, ppos, &counters,
 				       sizeof counters);
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index c272a7392e22..ce858797e299 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -148,10 +148,57 @@ struct _infinipath_do_not_use_kernel_regs {
 	unsigned long long ReservedSW2[4];
 };
 
-#define IPATH_KREG_OFFSET(field) (offsetof(struct \
-    _infinipath_do_not_use_kernel_regs, field) / sizeof(u64))
+struct _infinipath_do_not_use_counters {
+	__u64 LBIntCnt;
+	__u64 LBFlowStallCnt;
+	__u64 Reserved1;
+	__u64 TxUnsupVLErrCnt;
+	__u64 TxDataPktCnt;
+	__u64 TxFlowPktCnt;
+	__u64 TxDwordCnt;
+	__u64 TxLenErrCnt;
+	__u64 TxMaxMinLenErrCnt;
+	__u64 TxUnderrunCnt;
+	__u64 TxFlowStallCnt;
+	__u64 TxDroppedPktCnt;
+	__u64 RxDroppedPktCnt;
+	__u64 RxDataPktCnt;
+	__u64 RxFlowPktCnt;
+	__u64 RxDwordCnt;
+	__u64 RxLenErrCnt;
+	__u64 RxMaxMinLenErrCnt;
+	__u64 RxICRCErrCnt;
+	__u64 RxVCRCErrCnt;
+	__u64 RxFlowCtrlErrCnt;
+	__u64 RxBadFormatCnt;
+	__u64 RxLinkProblemCnt;
+	__u64 RxEBPCnt;
+	__u64 RxLPCRCErrCnt;
+	__u64 RxBufOvflCnt;
+	__u64 RxTIDFullErrCnt;
+	__u64 RxTIDValidErrCnt;
+	__u64 RxPKeyMismatchCnt;
+	__u64 RxP0HdrEgrOvflCnt;
+	__u64 RxP1HdrEgrOvflCnt;
+	__u64 RxP2HdrEgrOvflCnt;
+	__u64 RxP3HdrEgrOvflCnt;
+	__u64 RxP4HdrEgrOvflCnt;
+	__u64 RxP5HdrEgrOvflCnt;
+	__u64 RxP6HdrEgrOvflCnt;
+	__u64 RxP7HdrEgrOvflCnt;
+	__u64 RxP8HdrEgrOvflCnt;
+	__u64 Reserved6;
+	__u64 Reserved7;
+	__u64 IBStatusChangeCnt;
+	__u64 IBLinkErrRecoveryCnt;
+	__u64 IBLinkDownedCnt;
+	__u64 IBSymbolErrCnt;
+};
+
+#define IPATH_KREG_OFFSET(field) (offsetof( \
+	struct _infinipath_do_not_use_kernel_regs, field) / sizeof(u64))
 #define IPATH_CREG_OFFSET(field) (offsetof( \
-    struct infinipath_counters, field) / sizeof(u64))
+	struct _infinipath_do_not_use_counters, field) / sizeof(u64))
 
 static const struct ipath_kregs ipath_ht_kregs = {
 	.kr_control = IPATH_KREG_OFFSET(Control),
@@ -1614,6 +1661,111 @@ static void ipath_ht_free_irq(struct ipath_devdata *dd)
 	dd->ipath_intconfig = 0;
 }
 
+static void ipath_ht_read_counters(struct ipath_devdata *dd,
+				   struct infinipath_counters *cntrs)
+{
+	cntrs->LBIntCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBIntCnt));
+	cntrs->LBFlowStallCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBFlowStallCnt));
+	cntrs->TxSDmaDescCnt = 0;
+	cntrs->TxUnsupVLErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnsupVLErrCnt));
+	cntrs->TxDataPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDataPktCnt));
+	cntrs->TxFlowPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowPktCnt));
+	cntrs->TxDwordCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDwordCnt));
+	cntrs->TxLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxLenErrCnt));
+	cntrs->TxMaxMinLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxMaxMinLenErrCnt));
+	cntrs->TxUnderrunCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnderrunCnt));
+	cntrs->TxFlowStallCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowStallCnt));
+	cntrs->TxDroppedPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDroppedPktCnt));
+	cntrs->RxDroppedPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDroppedPktCnt));
+	cntrs->RxDataPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDataPktCnt));
+	cntrs->RxFlowPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowPktCnt));
+	cntrs->RxDwordCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDwordCnt));
+	cntrs->RxLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLenErrCnt));
+	cntrs->RxMaxMinLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxMaxMinLenErrCnt));
+	cntrs->RxICRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxICRCErrCnt));
+	cntrs->RxVCRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxVCRCErrCnt));
+	cntrs->RxFlowCtrlErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowCtrlErrCnt));
+	cntrs->RxBadFormatCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBadFormatCnt));
+	cntrs->RxLinkProblemCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLinkProblemCnt));
+	cntrs->RxEBPCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxEBPCnt));
+	cntrs->RxLPCRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLPCRCErrCnt));
+	cntrs->RxBufOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBufOvflCnt));
+	cntrs->RxTIDFullErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDFullErrCnt));
+	cntrs->RxTIDValidErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDValidErrCnt));
+	cntrs->RxPKeyMismatchCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxPKeyMismatchCnt));
+	cntrs->RxP0HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt));
+	cntrs->RxP1HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP1HdrEgrOvflCnt));
+	cntrs->RxP2HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP2HdrEgrOvflCnt));
+	cntrs->RxP3HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP3HdrEgrOvflCnt));
+	cntrs->RxP4HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP4HdrEgrOvflCnt));
+	cntrs->RxP5HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP5HdrEgrOvflCnt));
+	cntrs->RxP6HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP6HdrEgrOvflCnt));
+	cntrs->RxP7HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP7HdrEgrOvflCnt));
+	cntrs->RxP8HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP8HdrEgrOvflCnt));
+	cntrs->RxP9HdrEgrOvflCnt = 0;
+	cntrs->RxP10HdrEgrOvflCnt = 0;
+	cntrs->RxP11HdrEgrOvflCnt = 0;
+	cntrs->RxP12HdrEgrOvflCnt = 0;
+	cntrs->RxP13HdrEgrOvflCnt = 0;
+	cntrs->RxP14HdrEgrOvflCnt = 0;
+	cntrs->RxP15HdrEgrOvflCnt = 0;
+	cntrs->RxP16HdrEgrOvflCnt = 0;
+	cntrs->IBStatusChangeCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBStatusChangeCnt));
+	cntrs->IBLinkErrRecoveryCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt));
+	cntrs->IBLinkDownedCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkDownedCnt));
+	cntrs->IBSymbolErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBSymbolErrCnt));
+	cntrs->RxVL15DroppedPktCnt = 0;
+	cntrs->RxOtherLocalPhyErrCnt = 0;
+	cntrs->PcieRetryBufDiagQwordCnt = 0;
+	cntrs->ExcessBufferOvflCnt = dd->ipath_overrun_thresh_errs;
+	cntrs->LocalLinkIntegrityErrCnt =
+		(dd->ipath_flags & IPATH_GPIO_ERRINTRS) ?
+		dd->ipath_lli_errs : dd->ipath_lli_errors;
+	cntrs->RxVlErrCnt = 0;
+	cntrs->RxDlidFltrCnt = 0;
+}
+
 /**
  * ipath_init_iba6110_funcs - set up the chip-specific function pointers
  * @dd: the infinipath device
@@ -1638,6 +1790,7 @@ void ipath_init_iba6110_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_setextled = ipath_setup_ht_setextled;
 	dd->ipath_f_get_base_info = ipath_ht_get_base_info;
 	dd->ipath_f_free_irq = ipath_ht_free_irq;
+	dd->ipath_f_read_counters = ipath_ht_read_counters;
 
 	/*
 	 * initialize chip-specific variables
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index e6893ebc59d4..97ae11793973 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -145,10 +145,57 @@ struct _infinipath_do_not_use_kernel_regs {
 	unsigned long long Reserved12;
 };
 
-#define IPATH_KREG_OFFSET(field) (offsetof(struct \
-    _infinipath_do_not_use_kernel_regs, field) / sizeof(u64))
+struct _infinipath_do_not_use_counters {
+	__u64 LBIntCnt;
+	__u64 LBFlowStallCnt;
+	__u64 Reserved1;
+	__u64 TxUnsupVLErrCnt;
+	__u64 TxDataPktCnt;
+	__u64 TxFlowPktCnt;
+	__u64 TxDwordCnt;
+	__u64 TxLenErrCnt;
+	__u64 TxMaxMinLenErrCnt;
+	__u64 TxUnderrunCnt;
+	__u64 TxFlowStallCnt;
+	__u64 TxDroppedPktCnt;
+	__u64 RxDroppedPktCnt;
+	__u64 RxDataPktCnt;
+	__u64 RxFlowPktCnt;
+	__u64 RxDwordCnt;
+	__u64 RxLenErrCnt;
+	__u64 RxMaxMinLenErrCnt;
+	__u64 RxICRCErrCnt;
+	__u64 RxVCRCErrCnt;
+	__u64 RxFlowCtrlErrCnt;
+	__u64 RxBadFormatCnt;
+	__u64 RxLinkProblemCnt;
+	__u64 RxEBPCnt;
+	__u64 RxLPCRCErrCnt;
+	__u64 RxBufOvflCnt;
+	__u64 RxTIDFullErrCnt;
+	__u64 RxTIDValidErrCnt;
+	__u64 RxPKeyMismatchCnt;
+	__u64 RxP0HdrEgrOvflCnt;
+	__u64 RxP1HdrEgrOvflCnt;
+	__u64 RxP2HdrEgrOvflCnt;
+	__u64 RxP3HdrEgrOvflCnt;
+	__u64 RxP4HdrEgrOvflCnt;
+	__u64 RxP5HdrEgrOvflCnt;
+	__u64 RxP6HdrEgrOvflCnt;
+	__u64 RxP7HdrEgrOvflCnt;
+	__u64 RxP8HdrEgrOvflCnt;
+	__u64 Reserved6;
+	__u64 Reserved7;
+	__u64 IBStatusChangeCnt;
+	__u64 IBLinkErrRecoveryCnt;
+	__u64 IBLinkDownedCnt;
+	__u64 IBSymbolErrCnt;
+};
+
+#define IPATH_KREG_OFFSET(field) (offsetof( \
+	struct _infinipath_do_not_use_kernel_regs, field) / sizeof(u64))
 #define IPATH_CREG_OFFSET(field) (offsetof( \
-    struct infinipath_counters, field) / sizeof(u64))
+	struct _infinipath_do_not_use_counters, field) / sizeof(u64))
 
 static const struct ipath_kregs ipath_pe_kregs = {
 	.kr_control = IPATH_KREG_OFFSET(Control),
@@ -1368,6 +1415,105 @@ static void ipath_pe_free_irq(struct ipath_devdata *dd)
 	dd->ipath_irq = 0;
 }
 
+static void ipath_pe_read_counters(struct ipath_devdata *dd,
+				   struct infinipath_counters *cntrs)
+{
+	cntrs->LBIntCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBIntCnt));
+	cntrs->LBFlowStallCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBFlowStallCnt));
+	cntrs->TxSDmaDescCnt = 0;
+	cntrs->TxUnsupVLErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnsupVLErrCnt));
+	cntrs->TxDataPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDataPktCnt));
+	cntrs->TxFlowPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowPktCnt));
+	cntrs->TxDwordCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDwordCnt));
+	cntrs->TxLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxLenErrCnt));
+	cntrs->TxMaxMinLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxMaxMinLenErrCnt));
+	cntrs->TxUnderrunCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnderrunCnt));
+	cntrs->TxFlowStallCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowStallCnt));
+	cntrs->TxDroppedPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDroppedPktCnt));
+	cntrs->RxDroppedPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDroppedPktCnt));
+	cntrs->RxDataPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDataPktCnt));
+	cntrs->RxFlowPktCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowPktCnt));
+	cntrs->RxDwordCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDwordCnt));
+	cntrs->RxLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLenErrCnt));
+	cntrs->RxMaxMinLenErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxMaxMinLenErrCnt));
+	cntrs->RxICRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxICRCErrCnt));
+	cntrs->RxVCRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxVCRCErrCnt));
+	cntrs->RxFlowCtrlErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowCtrlErrCnt));
+	cntrs->RxBadFormatCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBadFormatCnt));
+	cntrs->RxLinkProblemCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLinkProblemCnt));
+	cntrs->RxEBPCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxEBPCnt));
+	cntrs->RxLPCRCErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLPCRCErrCnt));
+	cntrs->RxBufOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBufOvflCnt));
+	cntrs->RxTIDFullErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDFullErrCnt));
+	cntrs->RxTIDValidErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDValidErrCnt));
+	cntrs->RxPKeyMismatchCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxPKeyMismatchCnt));
+	cntrs->RxP0HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt));
+	cntrs->RxP1HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP1HdrEgrOvflCnt));
+	cntrs->RxP2HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP2HdrEgrOvflCnt));
+	cntrs->RxP3HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP3HdrEgrOvflCnt));
+	cntrs->RxP4HdrEgrOvflCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP4HdrEgrOvflCnt));
+	cntrs->RxP5HdrEgrOvflCnt = 0;
+	cntrs->RxP6HdrEgrOvflCnt = 0;
+	cntrs->RxP7HdrEgrOvflCnt = 0;
+	cntrs->RxP8HdrEgrOvflCnt = 0;
+	cntrs->RxP9HdrEgrOvflCnt = 0;
+	cntrs->RxP10HdrEgrOvflCnt = 0;
+	cntrs->RxP11HdrEgrOvflCnt = 0;
+	cntrs->RxP12HdrEgrOvflCnt = 0;
+	cntrs->RxP13HdrEgrOvflCnt = 0;
+	cntrs->RxP14HdrEgrOvflCnt = 0;
+	cntrs->RxP15HdrEgrOvflCnt = 0;
+	cntrs->RxP16HdrEgrOvflCnt = 0;
+	cntrs->IBStatusChangeCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBStatusChangeCnt));
+	cntrs->IBLinkErrRecoveryCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt));
+	cntrs->IBLinkDownedCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkDownedCnt));
+	cntrs->IBSymbolErrCnt =
+		ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBSymbolErrCnt));
+	cntrs->RxVL15DroppedPktCnt = 0;
+	cntrs->RxOtherLocalPhyErrCnt = 0;
+	cntrs->PcieRetryBufDiagQwordCnt = 0;
+	cntrs->ExcessBufferOvflCnt = dd->ipath_overrun_thresh_errs;
+	cntrs->LocalLinkIntegrityErrCnt = dd->ipath_lli_errs;
+	cntrs->RxVlErrCnt = 0;
+	cntrs->RxDlidFltrCnt = 0;
+}
+
 /*
  * On platforms using this chip, and not having ordered WC stores, we
  * can get TXE parity errors due to speculative reads to the PIO buffers,
@@ -1427,6 +1573,7 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
 
 	/* initialize chip-specific variables */
 	dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
+	dd->ipath_f_read_counters = ipath_pe_read_counters;
 
 	/*
 	 * setup the register offsets, since they are different for each
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index a59c06943de6..4f7bc08796bc 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -253,6 +253,8 @@ struct ipath_devdata {
 	int (*ipath_f_get_base_info)(struct ipath_portdata *, void *);
 	/* free irq */
 	void (*ipath_f_free_irq)(struct ipath_devdata *);
+	void (*ipath_f_read_counters)(struct ipath_devdata *,
+				      struct infinipath_counters *);
 	struct ipath_ibdev *verbs_dev;
 	struct timer_list verbs_timer;
 	/* total dwords sent (summed from counter) */
-- 
cgit v1.2.3-59-g8ed1b


From 9e2ef36b5a83b3c8ec1153382559dff410cc4341 Mon Sep 17 00:00:00 2001
From: Dave Olson <dave.olson@qlogic.com>
Date: Sun, 6 Jan 2008 21:02:34 -0800
Subject: IB/ipath: Clean up some comments

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_driver.c   | 2 +-
 drivers/infiniband/hw/ipath/ipath_file_ops.c | 5 -----
 drivers/infiniband/hw/ipath/ipath_iba6110.c  | 3 ++-
 drivers/infiniband/hw/ipath/ipath_iba6120.c  | 2 +-
 drivers/infiniband/hw/ipath/ipath_keys.c     | 5 ++---
 drivers/infiniband/hw/ipath/ipath_verbs.c    | 7 +++++--
 6 files changed, 11 insertions(+), 13 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 7c69090f6bd6..f130652cfaa3 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -1196,7 +1196,7 @@ reloop:
 				  be32_to_cpu(hdr->bth[0]) & 0xff);
 		else {
 			/*
-			 * error packet, type of error	unknown.
+			 * error packet, type of error unknown.
 			 * Probably type 3, but we don't know, so don't
 			 * even try to print the opcode, etc.
 			 */
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 2a75faf1d108..9e5714d68ee1 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -1050,11 +1050,6 @@ static int mmap_piobufs(struct vm_area_struct *vma,
 
 	phys = dd->ipath_physaddr + piobufs;
 
-	/*
-	 * Don't mark this as non-cached, or we don't get the
-	 * write combining behavior we want on the PIO buffers!
-	 */
-
 #if defined(__powerpc__)
 	/* There isn't a generic way to specify writethrough mappings */
 	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index ce858797e299..dffb6826579a 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1022,7 +1022,8 @@ static int ipath_setup_ht_config(struct ipath_devdata *dd,
 	do {
 		u8 cap_type;
 
-		/* the HT capability type byte is 3 bytes after the
+		/*
+		 * The HT capability type byte is 3 bytes after the
 		 * capability byte.
 		 */
 		if (pci_read_config_byte(pdev, pos + 3, &cap_type)) {
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 97ae11793973..66925b255ccd 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -535,7 +535,7 @@ static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg,
 
 	if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) {
 		/*
-		 * If it occurs, it is left masked since the eternal
+		 * If it occurs, it is left masked since the external
 		 * interface is unused
 		 */
 		dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED;
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index 85a4aefc6c03..8f32b17a5eed 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -128,9 +128,8 @@ int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge,
 	int ret;
 
 	/*
-	 * We use LKEY == zero to mean a physical kmalloc() address.
-	 * This is a bit of a hack since we rely on dma_map_single()
-	 * being reversible by calling bus_to_virt().
+	 * We use LKEY == zero for kernel virtual addresses
+	 * (see ipath_get_dma_mr and ipath_dma.c).
 	 */
 	if (sge->lkey == 0) {
 		struct ipath_pd *pd = to_ipd(qp->ibqp.pd);
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index a2baa618daf2..904ff1571ba6 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -943,7 +943,7 @@ bail:
  * ipath_verbs_send - send a packet
  * @qp: the QP to send on
  * @hdr: the packet header
- * @hdrwords: the number of words in the header
+ * @hdrwords: the number of 32-bit words in the header
  * @ss: the SGE to send
  * @len: the length of the packet in bytes
  */
@@ -955,7 +955,10 @@ int ipath_verbs_send(struct ipath_qp *qp, struct ipath_ib_header *hdr,
 	int ret;
 	u32 dwords = (len + 3) >> 2;
 
-	/* +1 is for the qword padding of pbc */
+	/*
+	 * Calculate the send buffer trigger address.
+	 * The +1 counts for the pbc control dword following the pbc length.
+	 */
 	plen = hdrwords + dwords + 1;
 
 	/* Drop non-VL15 packets if we are not in the active state */
-- 
cgit v1.2.3-59-g8ed1b


From a18e26ae442001de62f6b84a923e8613347dc35f Mon Sep 17 00:00:00 2001
From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Sun, 6 Jan 2008 21:02:34 -0800
Subject: IB/ipath: Allow more flexible user register alignments

User registers have different alignments on different chips (4KB on
older, 64KB on 7220).  Allow mapping the user registers on kernels with
page sizes up to 64K.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_file_ops.c | 6 +++---
 drivers/infiniband/hw/ipath/ipath_iba6110.c  | 7 +++++++
 drivers/infiniband/hw/ipath/ipath_iba6120.c  | 8 ++++++++
 drivers/infiniband/hw/ipath/ipath_kernel.h   | 6 ++++--
 4 files changed, 22 insertions(+), 5 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 9e5714d68ee1..0b877ed76712 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -169,7 +169,7 @@ static int ipath_get_base_info(struct file *fp,
 		kinfo->spi_piocnt = dd->ipath_pbufsport;
 		kinfo->spi_piobufbase = (u64) pd->port_piobufs;
 		kinfo->__spi_uregbase = (u64) dd->ipath_uregbase +
-			dd->ipath_palign * pd->port_port;
+			dd->ipath_ureg_align * pd->port_port;
 	} else if (master) {
 		kinfo->spi_piocnt = (dd->ipath_pbufsport / subport_cnt) +
 				    (dd->ipath_pbufsport % subport_cnt);
@@ -186,7 +186,7 @@ static int ipath_get_base_info(struct file *fp,
 	}
 	if (shared) {
 		kinfo->spi_port_uregbase = (u64) dd->ipath_uregbase +
-			dd->ipath_palign * pd->port_port;
+			dd->ipath_ureg_align * pd->port_port;
 		kinfo->spi_port_rcvegrbuf = kinfo->spi_rcv_egrbufs;
 		kinfo->spi_port_rcvhdr_base = kinfo->spi_rcvhdr_base;
 		kinfo->spi_port_rcvhdr_tailaddr = kinfo->spi_rcvhdr_tailaddr;
@@ -1271,7 +1271,7 @@ static int ipath_mmap(struct file *fp, struct vm_area_struct *vma)
 		goto bail;
 	}
 
-	ureg = dd->ipath_uregbase + dd->ipath_palign * pd->port_port;
+	ureg = dd->ipath_uregbase + dd->ipath_ureg_align * pd->port_port;
 	if (!pd->port_subport_cnt) {
 		/* port is not shared */
 		piocnt = dd->ipath_pbufsport;
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index dffb6826579a..5ecf65b8f85a 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -739,6 +739,13 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name,
 			      dd->ipath_htspeed);
 	ret = 0;
 
+	/*
+	 * set here, not in ipath_init_*_funcs because we have to do
+	 * it after we can read chip registers.
+	 */
+	dd->ipath_ureg_align =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_pagealign);
+
 bail:
 	return ret;
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 66925b255ccd..23de8da0f16b 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -613,6 +613,14 @@ static int ipath_pe_boardname(struct ipath_devdata *dd, char *name,
 			dd->ipath_f_put_tid = ipath_pe_put_tid_2;
 	}
 
+
+	/*
+	 * set here, not in ipath_init_*_funcs because we have to do
+	 * it after we can read chip registers.
+	 */
+	dd->ipath_ureg_align =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_pagealign);
+
 	return ret;
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 4f7bc08796bc..08272bef2475 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -395,6 +395,8 @@ struct ipath_devdata {
 	void *ipath_dummy_hdrq;	/* used after port close */
 	dma_addr_t ipath_dummy_hdrq_phys;
 
+	unsigned long ipath_ureg_align; /* user register alignment */
+
 	/*
 	 * Shadow copies of registers; size indicates read access size.
 	 * Most of them are readonly, but some are write-only register,
@@ -865,7 +867,7 @@ static inline u32 ipath_read_ureg32(const struct ipath_devdata *dd,
 	return readl(regno + (u64 __iomem *)
 		     (dd->ipath_uregbase +
 		      (char __iomem *)dd->ipath_kregbase +
-		      dd->ipath_palign * port));
+		      dd->ipath_ureg_align * port));
 }
 
 /**
@@ -882,7 +884,7 @@ static inline void ipath_write_ureg(const struct ipath_devdata *dd,
 {
 	u64 __iomem *ubase = (u64 __iomem *)
 		(dd->ipath_uregbase + (char __iomem *) dd->ipath_kregbase +
-		 dd->ipath_palign * port);
+		 dd->ipath_ureg_align * port);
 	if (dd->ipath_kregbase)
 		writeq(value, &ubase[regno]);
 }
-- 
cgit v1.2.3-59-g8ed1b


From 60948a415859cb859e24f0dfe739069d66577466 Mon Sep 17 00:00:00 2001
From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Sun, 6 Jan 2008 21:02:34 -0800
Subject: IB/ipath: Port config has on-chip effects for 7220

The number of configured ports for the 7220 changes the number of eager
TIDs available per port, for all but port 0 (kernel port) which remains
constant, so add a field to give port0 count separate from the portdata
structure.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_file_ops.c  | 2 +-
 drivers/infiniband/hw/ipath/ipath_iba6110.c   | 9 +++++++++
 drivers/infiniband/hw/ipath/ipath_iba6120.c   | 9 +++++++++
 drivers/infiniband/hw/ipath/ipath_init_chip.c | 5 ++---
 drivers/infiniband/hw/ipath/ipath_kernel.h    | 3 +++
 5 files changed, 24 insertions(+), 4 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 0b877ed76712..7b2f59af9c91 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -882,7 +882,7 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
 
 	egrcnt = dd->ipath_rcvegrcnt;
 	/* TID number offset for this port */
-	egroff = pd->port_port * egrcnt;
+	egroff = (pd->port_port - 1) * egrcnt + dd->ipath_p0_rcvegrcnt;
 	egrsize = dd->ipath_rcvegrbufsize;
 	ipath_cdbg(VERBOSE, "Allocating %d egr buffers, at egrtid "
 		   "offset %x, egrsize %u\n", egrcnt, egroff, egrsize);
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 5ecf65b8f85a..0c900c51e538 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1669,6 +1669,14 @@ static void ipath_ht_free_irq(struct ipath_devdata *dd)
 	dd->ipath_intconfig = 0;
 }
 
+static void ipath_ht_config_ports(struct ipath_devdata *dd, ushort cfgports)
+{
+	dd->ipath_portcnt =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+	dd->ipath_p0_rcvegrcnt =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvegrcnt);
+}
+
 static void ipath_ht_read_counters(struct ipath_devdata *dd,
 				   struct infinipath_counters *cntrs)
 {
@@ -1798,6 +1806,7 @@ void ipath_init_iba6110_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_setextled = ipath_setup_ht_setextled;
 	dd->ipath_f_get_base_info = ipath_ht_get_base_info;
 	dd->ipath_f_free_irq = ipath_ht_free_irq;
+	dd->ipath_f_config_ports = ipath_ht_config_ports;
 	dd->ipath_f_read_counters = ipath_ht_read_counters;
 
 	/*
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 23de8da0f16b..066a8ea4b4df 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -1423,6 +1423,14 @@ static void ipath_pe_free_irq(struct ipath_devdata *dd)
 	dd->ipath_irq = 0;
 }
 
+static void ipath_pe_config_ports(struct ipath_devdata *dd, ushort cfgports)
+{
+	dd->ipath_portcnt =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+	dd->ipath_p0_rcvegrcnt =
+		ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvegrcnt);
+}
+
 static void ipath_pe_read_counters(struct ipath_devdata *dd,
 				   struct infinipath_counters *cntrs)
 {
@@ -1581,6 +1589,7 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
 
 	/* initialize chip-specific variables */
 	dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
+	dd->ipath_f_config_ports = ipath_pe_config_ports;
 	dd->ipath_f_read_counters = ipath_pe_read_counters;
 
 	/*
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index 98b51465b58d..3174c315999b 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -91,7 +91,7 @@ static int create_port0_egr(struct ipath_devdata *dd)
 	struct ipath_skbinfo *skbinfo;
 	int ret;
 
-	egrcnt = dd->ipath_rcvegrcnt;
+	egrcnt = dd->ipath_p0_rcvegrcnt;
 
 	skbinfo = vmalloc(sizeof(*dd->ipath_port0_skbinfo) * egrcnt);
 	if (skbinfo == NULL) {
@@ -244,8 +244,7 @@ static int init_chip_first(struct ipath_devdata *dd,
 	 * cfgports.  We do still check and report a difference, if
 	 * not same (should be impossible).
 	 */
-	dd->ipath_portcnt =
-		ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+	dd->ipath_f_config_ports(dd, ipath_cfgports);
 	if (!ipath_cfgports)
 		dd->ipath_cfgports = dd->ipath_portcnt;
 	else if (ipath_cfgports <= dd->ipath_portcnt) {
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 08272bef2475..b9cca8403239 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -253,6 +253,7 @@ struct ipath_devdata {
 	int (*ipath_f_get_base_info)(struct ipath_portdata *, void *);
 	/* free irq */
 	void (*ipath_f_free_irq)(struct ipath_devdata *);
+	void (*ipath_f_config_ports)(struct ipath_devdata *, ushort);
 	void (*ipath_f_read_counters)(struct ipath_devdata *,
 				      struct infinipath_counters *);
 	struct ipath_ibdev *verbs_dev;
@@ -326,6 +327,8 @@ struct ipath_devdata {
 	u32 ipath_cfgports;
 	/* count of port 0 hdrqfull errors */
 	u32 ipath_p0_hdrqfull;
+	/* port 0 number of receive eager buffers */
+	u32 ipath_p0_rcvegrcnt;
 
 	/*
 	 * index of last piobuffer we used.  Speeds up searching, by
-- 
cgit v1.2.3-59-g8ed1b


From 4ea61b548bc93fb87cec6f52059851076e2ff54d Mon Sep 17 00:00:00 2001
From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Sun, 6 Jan 2008 21:12:38 -0800
Subject: IB/ipath: Add flag and handling for chips with swapped register bug

The 6110 had a bug that caused some registers to be swapped; it was
fixed for the 7220 (and didn't affect the 6120 because it had fewer
registers).  This adds a flag and related code to handle that, and
includes some minor cleanups in the same area.

Signed-off-by:  Ralph Campbell <ralph.campbell@qlogic.com>
---
 drivers/infiniband/hw/ipath/ipath_driver.c    | 11 +++--------
 drivers/infiniband/hw/ipath/ipath_iba6110.c   |  2 ++
 drivers/infiniband/hw/ipath/ipath_init_chip.c |  8 ++------
 drivers/infiniband/hw/ipath/ipath_intr.c      |  4 ++--
 drivers/infiniband/hw/ipath/ipath_kernel.h    |  1 +
 5 files changed, 10 insertions(+), 16 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index f130652cfaa3..5a9dc317f40a 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -1340,14 +1340,9 @@ static void ipath_update_pio_bufs(struct ipath_devdata *dd)
 		/*
 		 * Chip Errata: bug 6641; even and odd qwords>3 are swapped
 		 */
-		if (i > 3) {
-			if (i & 1)
-				piov = le64_to_cpu(
-					dd->ipath_pioavailregs_dma[i - 1]);
-			else
-				piov = le64_to_cpu(
-					dd->ipath_pioavailregs_dma[i + 1]);
-		} else
+		if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS))
+			piov = le64_to_cpu(dd->ipath_pioavailregs_dma[i ^ 1]);
+		else
 			piov = le64_to_cpu(dd->ipath_pioavailregs_dma[i]);
 		pchg = _IPATH_ALL_CHECKBITS &
 			~(dd->ipath_pioavailshadow[i] ^ piov);
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 0c900c51e538..3bfaf04a2148 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1043,6 +1043,8 @@ static int ipath_setup_ht_config(struct ipath_devdata *dd,
 	} while ((pos = pci_find_next_capability(pdev, pos,
 						 PCI_CAP_ID_HT)));
 
+	dd->ipath_flags |= IPATH_SWAP_PIOBUFS;
+
 bail:
 	return ret;
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index 3174c315999b..4471674975cd 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -528,12 +528,8 @@ static void enable_chip(struct ipath_devdata *dd,
 		/*
 		 * Chip Errata bug 6641; even and odd qwords>3 are swapped.
 		 */
-		if (i > 3) {
-			if (i & 1)
-				val = dd->ipath_pioavailregs_dma[i - 1];
-			else
-				val = dd->ipath_pioavailregs_dma[i + 1];
-		}
+		if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS))
+			val = dd->ipath_pioavailregs_dma[i ^ 1];
 		else
 			val = dd->ipath_pioavailregs_dma[i];
 		dd->ipath_pioavailshadow[i] = le64_to_cpu(val);
diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c
index e2ce5314504d..ddc0a19c5eee 100644
--- a/drivers/infiniband/hw/ipath/ipath_intr.c
+++ b/drivers/infiniband/hw/ipath/ipath_intr.c
@@ -831,8 +831,8 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
 	 */
 	for (i = 0; i < dd->ipath_pioavregs; i++) {
 		/* deal with 6110 chip bug */
-		im = i > 3 ? ((i&1) ? i-1 : i+1) : i;
-		val = ipath_read_kreg64(dd, (0x1000/sizeof(u64))+im);
+		im = i > 3 ? i ^ 1 : i;
+		val = ipath_read_kreg64(dd, (0x1000 / sizeof(u64)) + im);
 		dd->ipath_pioavailregs_dma[i] = dd->ipath_pioavailshadow[i]
 			= le64_to_cpu(val);
 	}
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index b9cca8403239..e07df0068312 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -756,6 +756,7 @@ int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv);
 #define IPATH_DISABLED      0x80000 /* administratively disabled */
 		/* Use GPIO interrupts for new counters */
 #define IPATH_GPIO_ERRINTRS 0x100000
+#define IPATH_SWAP_PIOBUFS  0x200000
 
 /* Bits in GPIO for the added interrupts */
 #define IPATH_GPIO_PORT0_BIT 2
-- 
cgit v1.2.3-59-g8ed1b


From 1f813ca830f51ed404195750bdba86c41a8050ba Mon Sep 17 00:00:00 2001
From: Dave Olson <dave.olson@qlogic.com>
Date: Sun, 6 Jan 2008 21:12:38 -0800
Subject: IB/ipath: Drop support for the original QHT7040 board

The original QHT7040 had significant performance issues so there was an
additional check in the driver for a newer serial number.  Support for
the small quantities of that board shipped has been dropped, so this
patch removes the special checks to simplify the code.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_iba6110.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 3bfaf04a2148..6976d96f6ce1 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1595,8 +1595,7 @@ static int ipath_ht_early_init(struct ipath_devdata *dd)
 	}
 
 	ipath_get_eeprom_info(dd);
-	if (dd->ipath_boardrev == 5 && dd->ipath_serial[0] == '1' &&
-		dd->ipath_serial[1] == '2' && dd->ipath_serial[2] == '8') {
+	if (dd->ipath_boardrev == 5) {
 		/*
 		 * Later production QHT7040 has same changes as QHT7140, so
 		 * can use GPIO interrupts.  They have serial #'s starting
-- 
cgit v1.2.3-59-g8ed1b


From 7387273307139ebf8d7f7fb3bb79d1ca48bd71d6 Mon Sep 17 00:00:00 2001
From: Dave Olson <dave.olson@qlogic.com>
Date: Tue, 8 Jan 2008 23:16:17 -0800
Subject: IB/ipath: Remove unused MDIO interface code

This code has been unused for some time, but still had leftovers
from when it was used.

Signed-off-by: Dave Olson <dave.olson@qlogic.com
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_driver.c    | 71 ---------------------------
 drivers/infiniband/hw/ipath/ipath_iba6110.c   | 28 +----------
 drivers/infiniband/hw/ipath/ipath_iba6120.c   | 26 +---------
 drivers/infiniband/hw/ipath/ipath_kernel.h    | 29 -----------
 drivers/infiniband/hw/ipath/ipath_registers.h | 16 ------
 5 files changed, 2 insertions(+), 168 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 5a9dc317f40a..bfcdf8c254c5 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -1618,77 +1618,6 @@ bail:
 	return ret;
 }
 
-int ipath_waitfor_complete(struct ipath_devdata *dd, ipath_kreg reg_id,
-			   u64 bits_to_wait_for, u64 * valp)
-{
-	unsigned long timeout;
-	u64 lastval, val;
-	int ret;
-
-	lastval = ipath_read_kreg64(dd, reg_id);
-	/* wait a ridiculously long time */
-	timeout = jiffies + msecs_to_jiffies(5);
-	do {
-		val = ipath_read_kreg64(dd, reg_id);
-		/* set so they have something, even on failures. */
-		*valp = val;
-		if ((val & bits_to_wait_for) == bits_to_wait_for) {
-			ret = 0;
-			break;
-		}
-		if (val != lastval)
-			ipath_cdbg(VERBOSE, "Changed from %llx to %llx, "
-				   "waiting for %llx bits\n",
-				   (unsigned long long) lastval,
-				   (unsigned long long) val,
-				   (unsigned long long) bits_to_wait_for);
-		cond_resched();
-		if (time_after(jiffies, timeout)) {
-			ipath_dbg("Didn't get bits %llx in register 0x%x, "
-				  "got %llx\n",
-				  (unsigned long long) bits_to_wait_for,
-				  reg_id, (unsigned long long) *valp);
-			ret = -ENODEV;
-			break;
-		}
-	} while (1);
-
-	return ret;
-}
-
-/**
- * ipath_waitfor_mdio_cmdready - wait for last command to complete
- * @dd: the infinipath device
- *
- * Like ipath_waitfor_complete(), but we wait for the CMDVALID bit to go
- * away indicating the last command has completed.  It doesn't return data
- */
-int ipath_waitfor_mdio_cmdready(struct ipath_devdata *dd)
-{
-	unsigned long timeout;
-	u64 val;
-	int ret;
-
-	/* wait a ridiculously long time */
-	timeout = jiffies + msecs_to_jiffies(5);
-	do {
-		val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_mdio);
-		if (!(val & IPATH_MDIO_CMDVALID)) {
-			ret = 0;
-			break;
-		}
-		cond_resched();
-		if (time_after(jiffies, timeout)) {
-			ipath_dbg("CMDVALID stuck in mdio reg? (%llx)\n",
-				  (unsigned long long) val);
-			ret = -ENODEV;
-			break;
-		}
-	} while (1);
-
-	return ret;
-}
-
 
 /*
  * Flush all sends that might be in the ready to send state, as well as any
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 6976d96f6ce1..ac436c630bcc 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1274,8 +1274,7 @@ static void ipath_ht_init_hwerrors(struct ipath_devdata *dd)
 	val &= ~INFINIPATH_HWE_HTCMISCERR4;
 
 	/*
-	 * PLL ignored because MDIO interface has a logic problem
-	 * for reads, on Comstock and Ponderosa.  BRINGUP
+	 * PLL ignored because unused MDIO interface has a logic problem
 	 */
 	if (dd->ipath_boardrev == 4 || dd->ipath_boardrev == 9)
 		val &= ~INFINIPATH_HWE_SERDESPLLFAILED;
@@ -1353,16 +1352,6 @@ static int ipath_ht_bringup_serdes(struct ipath_devdata *dd)
 	}
 
 	val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig);
-	if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) &
-	     INFINIPATH_XGXS_MDIOADDR_MASK) != 3) {
-		val &= ~(INFINIPATH_XGXS_MDIOADDR_MASK <<
-			 INFINIPATH_XGXS_MDIOADDR_SHIFT);
-		/*
-		 * we use address 3
-		 */
-		val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT;
-		change = 1;
-	}
 	if (val & INFINIPATH_XGXS_RESET) {
 		/* normally true after boot */
 		val &= ~INFINIPATH_XGXS_RESET;
@@ -1398,21 +1387,6 @@ static int ipath_ht_bringup_serdes(struct ipath_devdata *dd)
 		   (unsigned long long)
 		   ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig));
 
-	if (!ipath_waitfor_mdio_cmdready(dd)) {
-		ipath_write_kreg(dd, dd->ipath_kregs->kr_mdio,
-				 ipath_mdio_req(IPATH_MDIO_CMD_READ, 31,
-						IPATH_MDIO_CTRL_XGXS_REG_8,
-						0));
-		if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio,
-					   IPATH_MDIO_DATAVALID, &val))
-			ipath_dbg("Never got MDIO data for XGXS status "
-				  "read\n");
-		else
-			ipath_cdbg(VERBOSE, "MDIO Read reg8, "
-				   "'bank' 31 %x\n", (u32) val);
-	} else
-		ipath_dbg("Never got MDIO cmdready for XGXS status read\n");
-
 	return ret;		/* for now, say we always succeeded */
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 066a8ea4b4df..57915fd718e2 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -725,17 +725,8 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
 
 	val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig);
 	prev_val = val;
-	if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) &
-	     INFINIPATH_XGXS_MDIOADDR_MASK) != 3) {
-		val &=
-			~(INFINIPATH_XGXS_MDIOADDR_MASK <<
-			  INFINIPATH_XGXS_MDIOADDR_SHIFT);
-		/* MDIO address 3 */
-		val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT;
-	}
-	if (val & INFINIPATH_XGXS_RESET) {
+	if (val & INFINIPATH_XGXS_RESET)
 		val &= ~INFINIPATH_XGXS_RESET;
-	}
 	if (((val >> INFINIPATH_XGXS_RX_POL_SHIFT) &
 	     INFINIPATH_XGXS_RX_POL_MASK) != dd->ipath_rx_pol_inv ) {
 		/* need to compensate for Tx inversion in partner */
@@ -765,21 +756,6 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
 		   (unsigned long long)
 		   ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig));
 
-	if (!ipath_waitfor_mdio_cmdready(dd)) {
-		ipath_write_kreg(
-			dd, dd->ipath_kregs->kr_mdio,
-			ipath_mdio_req(IPATH_MDIO_CMD_READ, 31,
-				       IPATH_MDIO_CTRL_XGXS_REG_8, 0));
-		if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio,
-					   IPATH_MDIO_DATAVALID, &val))
-			ipath_dbg("Never got MDIO data for XGXS "
-				  "status read\n");
-		else
-			ipath_cdbg(VERBOSE, "MDIO Read reg8, "
-				   "'bank' 31 %x\n", (u32) val);
-	} else
-		ipath_dbg("Never got MDIO cmdready for XGXS status read\n");
-
 	return ret;
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index c47290422457..c0ecda35f2d9 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -777,8 +777,6 @@ int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv);
 
 /* free up any allocated data at closes */
 void ipath_free_data(struct ipath_portdata *dd);
-int ipath_waitfor_mdio_cmdready(struct ipath_devdata *);
-int ipath_waitfor_complete(struct ipath_devdata *, ipath_kreg, u64, u64 *);
 u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32 *);
 void ipath_init_iba6120_funcs(struct ipath_devdata *);
 void ipath_init_iba6110_funcs(struct ipath_devdata *);
@@ -802,33 +800,6 @@ void ipath_set_led_override(struct ipath_devdata *dd, unsigned int val);
  */
 #define IPATH_DFLT_RCVHDRSIZE 9
 
-#define IPATH_MDIO_CMD_WRITE   1
-#define IPATH_MDIO_CMD_READ    2
-#define IPATH_MDIO_CLD_DIV     25	/* to get 2.5 Mhz mdio clock */
-#define IPATH_MDIO_CMDVALID    0x40000000	/* bit 30 */
-#define IPATH_MDIO_DATAVALID   0x80000000	/* bit 31 */
-#define IPATH_MDIO_CTRL_STD    0x0
-
-static inline u64 ipath_mdio_req(int cmd, int dev, int reg, int data)
-{
-	return (((u64) IPATH_MDIO_CLD_DIV) << 32) |
-		(cmd << 26) |
-		(dev << 21) |
-		(reg << 16) |
-		(data & 0xFFFF);
-}
-
-		/* signal and fifo status, in bank 31 */
-#define IPATH_MDIO_CTRL_XGXS_REG_8  0x8
-		/* controls loopback, redundancy */
-#define IPATH_MDIO_CTRL_8355_REG_1  0x10
-		/* premph, encdec, etc. */
-#define IPATH_MDIO_CTRL_8355_REG_2  0x11
-		/* Kchars, etc. */
-#define IPATH_MDIO_CTRL_8355_REG_6  0x15
-#define IPATH_MDIO_CTRL_8355_REG_9  0x18
-#define IPATH_MDIO_CTRL_8355_REG_10 0x1D
-
 int ipath_get_user_pages(unsigned long, size_t, struct page **);
 void ipath_release_user_pages(struct page **, size_t);
 void ipath_release_user_pages_on_close(struct page **, size_t);
diff --git a/drivers/infiniband/hw/ipath/ipath_registers.h b/drivers/infiniband/hw/ipath/ipath_registers.h
index 156ef1473466..6d2a17f9c1da 100644
--- a/drivers/infiniband/hw/ipath/ipath_registers.h
+++ b/drivers/infiniband/hw/ipath/ipath_registers.h
@@ -271,20 +271,6 @@
 #define INFINIPATH_EXTC_LEDGBLOK_ON          0x00000002ULL
 #define INFINIPATH_EXTC_LEDGBLERR_OFF        0x00000001ULL
 
-/* kr_mdio bits */
-#define INFINIPATH_MDIO_CLKDIV_MASK 0x7FULL
-#define INFINIPATH_MDIO_CLKDIV_SHIFT 32
-#define INFINIPATH_MDIO_COMMAND_MASK 0x7ULL
-#define INFINIPATH_MDIO_COMMAND_SHIFT 26
-#define INFINIPATH_MDIO_DEVADDR_MASK 0x1FULL
-#define INFINIPATH_MDIO_DEVADDR_SHIFT 21
-#define INFINIPATH_MDIO_REGADDR_MASK 0x1FULL
-#define INFINIPATH_MDIO_REGADDR_SHIFT 16
-#define INFINIPATH_MDIO_DATA_MASK 0xFFFFULL
-#define INFINIPATH_MDIO_DATA_SHIFT 0
-#define INFINIPATH_MDIO_CMDVALID    0x0000000040000000ULL
-#define INFINIPATH_MDIO_RDDATAVALID 0x0000000080000000ULL
-
 /* kr_partitionkey bits */
 #define INFINIPATH_PKEY_SIZE 16
 #define INFINIPATH_PKEY_MASK 0xFFFF
@@ -302,8 +288,6 @@
 
 /* kr_xgxsconfig bits */
 #define INFINIPATH_XGXS_RESET          0x7ULL
-#define INFINIPATH_XGXS_MDIOADDR_MASK  0xfULL
-#define INFINIPATH_XGXS_MDIOADDR_SHIFT 4
 #define INFINIPATH_XGXS_RX_POL_SHIFT 19
 #define INFINIPATH_XGXS_RX_POL_MASK 0xfULL
 
-- 
cgit v1.2.3-59-g8ed1b


From c4bce8032ef4368063c84d665b19804878d63e7c Mon Sep 17 00:00:00 2001
From: Dave Olson <dave.olson@qlogic.com>
Date: Tue, 8 Jan 2008 02:36:46 -0800
Subject: IB/ipath: Add new chip-specific functions to older chips, consistent
 init

This adds the new (sometimes empty) chip-specific functions to the older
chips, and makes the initialization and related functions consistent across
all 3 chips.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/hw/ipath/ipath_common.h  |  10 ++
 drivers/infiniband/hw/ipath/ipath_iba6110.c | 172 +++++++++++++++++++++++++---
 drivers/infiniband/hw/ipath/ipath_iba6120.c | 163 ++++++++++++++++++++++++--
 drivers/infiniband/hw/ipath/ipath_kernel.h  |  88 +++++++++++++-
 4 files changed, 407 insertions(+), 26 deletions(-)

(limited to 'drivers/infiniband/hw/ipath/ipath_iba6110.c')

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index aa780e7f2418..0fa43ba25b7e 100644
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -81,6 +81,16 @@
 #define IPATH_IB_LINK_LOOPBACK	6 /* enable local loopback */
 #define IPATH_IB_LINK_EXTERNAL	7 /* normal, disable local loopback */
 
+/*
+ * These 3 values (SDR and DDR may be ORed for auto-speed
+ * negotiation) are used for the 3rd argument to path_f_set_ib_cfg
+ * with cmd IPATH_IB_CFG_SPD_ENB, by direct calls or via sysfs.  They
+ * are also the the possible values for ipath_link_speed_enabled and active
+ * The values were chosen to match values used within the IB spec.
+ */
+#define IPATH_IB_SDR 1
+#define IPATH_IB_DDR 2
+
 /*
  * stats maintained by the driver.  For now, at least, this is global
  * to all minor devices.
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index ac436c630bcc..9e2ced3cdc5e 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -329,6 +329,9 @@ static const struct ipath_cregs ipath_ht_cregs = {
 #define INFINIPATH_HWE_HTAPLL_RFSLIP        0x1000000000000000ULL
 #define INFINIPATH_HWE_SERDESPLLFAILED      0x2000000000000000ULL
 
+#define IBA6110_IBCS_LINKTRAININGSTATE_MASK 0xf
+#define IBA6110_IBCS_LINKSTATE_SHIFT 4
+
 /* kr_extstatus bits */
 #define INFINIPATH_EXTS_FREQSEL 0x2
 #define INFINIPATH_EXTS_SERDESSEL 0x4
@@ -705,7 +708,6 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name,
 			      "with ID %u\n", boardrev);
 		snprintf(name, namelen, "Unknown_InfiniPath_QHT7xxx_%u",
 			 boardrev);
-		ret = 1;
 		break;
 	}
 	if (n)
@@ -1137,11 +1139,49 @@ static void ipath_setup_ht_setextled(struct ipath_devdata *dd,
 
 static void ipath_init_ht_variables(struct ipath_devdata *dd)
 {
+	/*
+	 * setup the register offsets, since they are different for each
+	 * chip
+	 */
+	dd->ipath_kregs = &ipath_ht_kregs;
+	dd->ipath_cregs = &ipath_ht_cregs;
+
 	dd->ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM;
 	dd->ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM;
 	dd->ipath_gpio_sda = IPATH_GPIO_SDA;
 	dd->ipath_gpio_scl = IPATH_GPIO_SCL;
 
+	/*
+	 * Fill in data for field-values that change in newer chips.
+	 * We dynamically specify only the mask for LINKTRAININGSTATE
+	 * and only the shift for LINKSTATE, as they are the only ones
+	 * that change.  Also precalculate the 3 link states of interest
+	 * and the combined mask.
+	 */
+	dd->ibcs_ls_shift = IBA6110_IBCS_LINKSTATE_SHIFT;
+	dd->ibcs_lts_mask = IBA6110_IBCS_LINKTRAININGSTATE_MASK;
+	dd->ibcs_mask = (INFINIPATH_IBCS_LINKSTATE_MASK <<
+		dd->ibcs_ls_shift) | dd->ibcs_lts_mask;
+	dd->ib_init = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_INIT << dd->ibcs_ls_shift);
+	dd->ib_arm = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_ARM << dd->ibcs_ls_shift);
+	dd->ib_active = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_ACTIVE << dd->ibcs_ls_shift);
+
+	/*
+	 * Fill in data for ibcc field-values that change in newer chips.
+	 * We dynamically specify only the mask for LINKINITCMD
+	 * and only the shift for LINKCMD and MAXPKTLEN, as they are
+	 * the only ones that change.
+	 */
+	dd->ibcc_lic_mask = INFINIPATH_IBCC_LINKINITCMD_MASK;
+	dd->ibcc_lc_shift = INFINIPATH_IBCC_LINKCMD_SHIFT;
+	dd->ibcc_mpl_shift = INFINIPATH_IBCC_MAXPKTLEN_SHIFT;
+
 	/* Fill in shifts for RcvCtrl. */
 	dd->ipath_r_portenable_shift = INFINIPATH_R_PORTENABLE_SHIFT;
 	dd->ipath_r_intravail_shift = INFINIPATH_R_INTRAVAIL_SHIFT;
@@ -1204,6 +1244,8 @@ static void ipath_init_ht_variables(struct ipath_devdata *dd)
 
 	dd->ipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK;
 	dd->ipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK;
+	dd->ipath_i_rcvavail_shift = INFINIPATH_I_RCVAVAIL_SHIFT;
+	dd->ipath_i_rcvurg_shift = INFINIPATH_I_RCVURG_SHIFT;
 
 	/*
 	 * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity.
@@ -1217,9 +1259,17 @@ static void ipath_init_ht_variables(struct ipath_devdata *dd)
 		INFINIPATH_HWE_RXEMEMPARITYERR_MASK <<
 		INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT;
 
-	dd->ipath_eep_st_masks[2].errs_to_log =
-		INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET;
+	dd->ipath_eep_st_masks[2].errs_to_log = INFINIPATH_E_RESET;
 
+	dd->delay_mult = 2; /* SDR, 4X, can't change */
+
+	dd->ipath_link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X;
+	dd->ipath_link_speed_supported = IPATH_IB_SDR;
+	dd->ipath_link_width_enabled = IB_WIDTH_4X;
+	dd->ipath_link_speed_enabled = dd->ipath_link_speed_supported;
+	/* these can't change for this chip, so set once */
+	dd->ipath_link_width_active = dd->ipath_link_width_enabled;
+	dd->ipath_link_speed_active = dd->ipath_link_speed_enabled;
 }
 
 /**
@@ -1281,6 +1331,9 @@ static void ipath_ht_init_hwerrors(struct ipath_devdata *dd)
 	dd->ipath_hwerrmask = val;
 }
 
+
+
+
 /**
  * ipath_ht_bringup_serdes - bring up the serdes
  * @dd: the infinipath device
@@ -1439,6 +1492,7 @@ static void ipath_ht_put_tid(struct ipath_devdata *dd,
 			pa |= lenvalid | INFINIPATH_RT_VALID;
 		}
 	}
+
 	writeq(pa, tidptr);
 }
 
@@ -1644,6 +1698,13 @@ static void ipath_ht_free_irq(struct ipath_devdata *dd)
 	dd->ipath_intconfig = 0;
 }
 
+static struct ipath_message_header *
+ipath_ht_get_msgheader(struct ipath_devdata *dd, __le32 *rhf_addr)
+{
+	return (struct ipath_message_header *)
+		&rhf_addr[sizeof(u64) / sizeof(u32)];
+}
+
 static void ipath_ht_config_ports(struct ipath_devdata *dd, ushort cfgports)
 {
 	dd->ipath_portcnt =
@@ -1757,6 +1818,90 @@ static void ipath_ht_read_counters(struct ipath_devdata *dd,
 	cntrs->RxDlidFltrCnt = 0;
 }
 
+
+/* no interrupt fallback for these chips */
+static int ipath_ht_nointr_fallback(struct ipath_devdata *dd)
+{
+	return 0;
+}
+
+
+/*
+ * reset the XGXS (between serdes and IBC).  Slightly less intrusive
+ * than resetting the IBC or external link state, and useful in some
+ * cases to cause some retraining.  To do this right, we reset IBC
+ * as well.
+ */
+static void ipath_ht_xgxs_reset(struct ipath_devdata *dd)
+{
+	u64 val, prev_val;
+
+	prev_val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig);
+	val = prev_val | INFINIPATH_XGXS_RESET;
+	prev_val &= ~INFINIPATH_XGXS_RESET; /* be sure */
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
+			 dd->ipath_control & ~INFINIPATH_C_LINKENABLE);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val);
+	ipath_read_kreg32(dd, dd->ipath_kregs->kr_scratch);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, prev_val);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
+			 dd->ipath_control);
+}
+
+
+static int ipath_ht_get_ib_cfg(struct ipath_devdata *dd, int which)
+{
+	int ret;
+
+	switch (which) {
+	case IPATH_IB_CFG_LWID:
+		ret = dd->ipath_link_width_active;
+		break;
+	case IPATH_IB_CFG_SPD:
+		ret = dd->ipath_link_speed_active;
+		break;
+	case IPATH_IB_CFG_LWID_ENB:
+		ret = dd->ipath_link_width_enabled;
+		break;
+	case IPATH_IB_CFG_SPD_ENB:
+		ret = dd->ipath_link_speed_enabled;
+		break;
+	default:
+		ret =  -ENOTSUPP;
+		break;
+	}
+	return ret;
+}
+
+
+/* we assume range checking is already done, if needed */
+static int ipath_ht_set_ib_cfg(struct ipath_devdata *dd, int which, u32 val)
+{
+	int ret = 0;
+
+	if (which == IPATH_IB_CFG_LWID_ENB)
+		dd->ipath_link_width_enabled = val;
+	else if (which == IPATH_IB_CFG_SPD_ENB)
+		dd->ipath_link_speed_enabled = val;
+	else
+		ret = -ENOTSUPP;
+	return ret;
+}
+
+
+static void ipath_ht_config_jint(struct ipath_devdata *dd, u16 a, u16 b)
+{
+}
+
+
+static int ipath_ht_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
+{
+	ipath_setup_ht_setextled(dd, ipath_ib_linkstate(dd, ibcs),
+		ipath_ib_linktrstate(dd, ibcs));
+	return 0;
+}
+
+
 /**
  * ipath_init_iba6110_funcs - set up the chip-specific function pointers
  * @dd: the infinipath device
@@ -1781,24 +1926,19 @@ void ipath_init_iba6110_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_setextled = ipath_setup_ht_setextled;
 	dd->ipath_f_get_base_info = ipath_ht_get_base_info;
 	dd->ipath_f_free_irq = ipath_ht_free_irq;
+	dd->ipath_f_tidtemplate = ipath_ht_tidtemplate;
+	dd->ipath_f_intr_fallback = ipath_ht_nointr_fallback;
+	dd->ipath_f_get_msgheader = ipath_ht_get_msgheader;
 	dd->ipath_f_config_ports = ipath_ht_config_ports;
 	dd->ipath_f_read_counters = ipath_ht_read_counters;
+	dd->ipath_f_xgxs_reset = ipath_ht_xgxs_reset;
+	dd->ipath_f_get_ib_cfg = ipath_ht_get_ib_cfg;
+	dd->ipath_f_set_ib_cfg = ipath_ht_set_ib_cfg;
+	dd->ipath_f_config_jint = ipath_ht_config_jint;
+	dd->ipath_f_ib_updown = ipath_ht_ib_updown;
 
 	/*
 	 * initialize chip-specific variables
 	 */
-	dd->ipath_f_tidtemplate = ipath_ht_tidtemplate;
-
-	/*
-	 * setup the register offsets, since they are different for each
-	 * chip
-	 */
-	dd->ipath_kregs = &ipath_ht_kregs;
-	dd->ipath_cregs = &ipath_ht_cregs;
-
-	/*
-	 * do very early init that is needed before ipath_f_bus is
-	 * called
-	 */
 	ipath_init_ht_variables(dd);
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 57915fd718e2..597192e912de 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -329,6 +329,9 @@ static const struct ipath_cregs ipath_pe_cregs = {
 #define INFINIPATH_HWE_PCIE0PLLFAILED       0x0800000000000000ULL
 #define INFINIPATH_HWE_SERDESPLLFAILED      0x1000000000000000ULL
 
+#define IBA6120_IBCS_LINKTRAININGSTATE_MASK 0xf
+#define IBA6120_IBCS_LINKSTATE_SHIFT 4
+
 /* kr_extstatus bits */
 #define INFINIPATH_EXTS_FREQSEL 0x2
 #define INFINIPATH_EXTS_SERDESSEL 0x4
@@ -936,11 +939,26 @@ static int ipath_setup_pe_config(struct ipath_devdata *dd,
 	else
 		ipath_dev_err(dd, "Can't find PCI Express "
 			      "capability!\n");
+
+	dd->ipath_link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X;
+	dd->ipath_link_speed_supported = IPATH_IB_SDR;
+	dd->ipath_link_width_enabled = IB_WIDTH_4X;
+	dd->ipath_link_speed_enabled = dd->ipath_link_speed_supported;
+	/* these can't change for this chip, so set once */
+	dd->ipath_link_width_active = dd->ipath_link_width_enabled;
+	dd->ipath_link_speed_active = dd->ipath_link_speed_enabled;
 	return 0;
 }
 
 static void ipath_init_pe_variables(struct ipath_devdata *dd)
 {
+	/*
+	 * setup the register offsets, since they are different for each
+	 * chip
+	 */
+	dd->ipath_kregs = &ipath_pe_kregs;
+	dd->ipath_cregs = &ipath_pe_cregs;
+
 	/*
 	 * bits for selecting i2c direction and values,
 	 * used for I2C serial flash
@@ -950,6 +968,37 @@ static void ipath_init_pe_variables(struct ipath_devdata *dd)
 	dd->ipath_gpio_sda = IPATH_GPIO_SDA;
 	dd->ipath_gpio_scl = IPATH_GPIO_SCL;
 
+	/*
+	 * Fill in data for field-values that change in newer chips.
+	 * We dynamically specify only the mask for LINKTRAININGSTATE
+	 * and only the shift for LINKSTATE, as they are the only ones
+	 * that change.  Also precalculate the 3 link states of interest
+	 * and the combined mask.
+	 */
+	dd->ibcs_ls_shift = IBA6120_IBCS_LINKSTATE_SHIFT;
+	dd->ibcs_lts_mask = IBA6120_IBCS_LINKTRAININGSTATE_MASK;
+	dd->ibcs_mask = (INFINIPATH_IBCS_LINKSTATE_MASK <<
+		dd->ibcs_ls_shift) | dd->ibcs_lts_mask;
+	dd->ib_init = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_INIT << dd->ibcs_ls_shift);
+	dd->ib_arm = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_ARM << dd->ibcs_ls_shift);
+	dd->ib_active = (INFINIPATH_IBCS_LT_STATE_LINKUP <<
+		INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) |
+		(INFINIPATH_IBCS_L_STATE_ACTIVE << dd->ibcs_ls_shift);
+
+	/*
+	 * Fill in data for ibcc field-values that change in newer chips.
+	 * We dynamically specify only the mask for LINKINITCMD
+	 * and only the shift for LINKCMD and MAXPKTLEN, as they are
+	 * the only ones that change.
+	 */
+	dd->ibcc_lic_mask = INFINIPATH_IBCC_LINKINITCMD_MASK;
+	dd->ibcc_lc_shift = INFINIPATH_IBCC_LINKCMD_SHIFT;
+	dd->ibcc_mpl_shift = INFINIPATH_IBCC_MAXPKTLEN_SHIFT;
+
 	/* Fill in shifts for RcvCtrl. */
 	dd->ipath_r_portenable_shift = INFINIPATH_R_PORTENABLE_SHIFT;
 	dd->ipath_r_intravail_shift = INFINIPATH_R_INTRAVAIL_SHIFT;
@@ -1003,6 +1052,8 @@ static void ipath_init_pe_variables(struct ipath_devdata *dd)
 
 	dd->ipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK;
 	dd->ipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK;
+	dd->ipath_i_rcvavail_shift = INFINIPATH_I_RCVAVAIL_SHIFT;
+	dd->ipath_i_rcvurg_shift = INFINIPATH_I_RCVURG_SHIFT;
 
 	/*
 	 * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity.
@@ -1024,6 +1075,7 @@ static void ipath_init_pe_variables(struct ipath_devdata *dd)
 		INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET;
 
 
+	dd->delay_mult = 2; /* SDR, 4X, can't change */
 }
 
 /* setup the MSI stuff again after a reset.  I'd like to just call
@@ -1329,6 +1381,9 @@ static int ipath_pe_early_init(struct ipath_devdata *dd)
 	 */
 	dd->ipath_rcvhdrentsize = 24;
 	dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE;
+	dd->ipath_rhf_offset = 0;
+	dd->ipath_egrtidbase = (u64 __iomem *)
+		((char __iomem *) dd->ipath_kregbase + dd->ipath_rcvegrbase);
 
 	/*
 	 * To truly support a 4KB MTU (for usermode), we need to
@@ -1399,6 +1454,14 @@ static void ipath_pe_free_irq(struct ipath_devdata *dd)
 	dd->ipath_irq = 0;
 }
 
+
+static struct ipath_message_header *
+ipath_pe_get_msgheader(struct ipath_devdata *dd, __le32 *rhf_addr)
+{
+	return (struct ipath_message_header *)
+		&rhf_addr[sizeof(u64) / sizeof(u32)];
+}
+
 static void ipath_pe_config_ports(struct ipath_devdata *dd, ushort cfgports)
 {
 	dd->ipath_portcnt =
@@ -1534,6 +1597,88 @@ static int ipath_pe_txe_recover(struct ipath_devdata *dd)
 	return 1;
 }
 
+/* no interrupt fallback for these chips */
+static int ipath_pe_nointr_fallback(struct ipath_devdata *dd)
+{
+	return 0;
+}
+
+
+/*
+ * reset the XGXS (between serdes and IBC).  Slightly less intrusive
+ * than resetting the IBC or external link state, and useful in some
+ * cases to cause some retraining.  To do this right, we reset IBC
+ * as well.
+ */
+static void ipath_pe_xgxs_reset(struct ipath_devdata *dd)
+{
+	u64 val, prev_val;
+
+	prev_val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig);
+	val = prev_val | INFINIPATH_XGXS_RESET;
+	prev_val &= ~INFINIPATH_XGXS_RESET; /* be sure */
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
+			 dd->ipath_control & ~INFINIPATH_C_LINKENABLE);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val);
+	ipath_read_kreg32(dd, dd->ipath_kregs->kr_scratch);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, prev_val);
+	ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
+			 dd->ipath_control);
+}
+
+
+static int ipath_pe_get_ib_cfg(struct ipath_devdata *dd, int which)
+{
+	int ret;
+
+	switch (which) {
+	case IPATH_IB_CFG_LWID:
+		ret = dd->ipath_link_width_active;
+		break;
+	case IPATH_IB_CFG_SPD:
+		ret = dd->ipath_link_speed_active;
+		break;
+	case IPATH_IB_CFG_LWID_ENB:
+		ret = dd->ipath_link_width_enabled;
+		break;
+	case IPATH_IB_CFG_SPD_ENB:
+		ret = dd->ipath_link_speed_enabled;
+		break;
+	default:
+		ret =  -ENOTSUPP;
+		break;
+	}
+	return ret;
+}
+
+
+/* we assume range checking is already done, if needed */
+static int ipath_pe_set_ib_cfg(struct ipath_devdata *dd, int which, u32 val)
+{
+	int ret = 0;
+
+	if (which == IPATH_IB_CFG_LWID_ENB)
+		dd->ipath_link_width_enabled = val;
+	else if (which == IPATH_IB_CFG_SPD_ENB)
+		dd->ipath_link_speed_enabled = val;
+	else
+		ret = -ENOTSUPP;
+	return ret;
+}
+
+static void ipath_pe_config_jint(struct ipath_devdata *dd, u16 a, u16 b)
+{
+}
+
+
+static int ipath_pe_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
+{
+	ipath_setup_pe_setextled(dd, ipath_ib_linkstate(dd, ibcs),
+		ipath_ib_linktrstate(dd, ibcs));
+	return 0;
+}
+
+
 /**
  * ipath_init_iba6120_funcs - set up the chip-specific function pointers
  * @dd: the infinipath device
@@ -1554,7 +1699,7 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_bringup_serdes = ipath_pe_bringup_serdes;
 	dd->ipath_f_clear_tids = ipath_pe_clear_tids;
 	/*
-	 * this may get changed after we read the chip revision,
+	 * _f_put_tid may get changed after we read the chip revision,
 	 * but we start with the safe version for all revs
 	 */
 	dd->ipath_f_put_tid = ipath_pe_put_tid;
@@ -1562,19 +1707,19 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_setextled = ipath_setup_pe_setextled;
 	dd->ipath_f_get_base_info = ipath_pe_get_base_info;
 	dd->ipath_f_free_irq = ipath_pe_free_irq;
-
-	/* initialize chip-specific variables */
 	dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
+	dd->ipath_f_intr_fallback = ipath_pe_nointr_fallback;
+	dd->ipath_f_xgxs_reset = ipath_pe_xgxs_reset;
+	dd->ipath_f_get_msgheader = ipath_pe_get_msgheader;
 	dd->ipath_f_config_ports = ipath_pe_config_ports;
 	dd->ipath_f_read_counters = ipath_pe_read_counters;
+	dd->ipath_f_get_ib_cfg = ipath_pe_get_ib_cfg;
+	dd->ipath_f_set_ib_cfg = ipath_pe_set_ib_cfg;
+	dd->ipath_f_config_jint = ipath_pe_config_jint;
+	dd->ipath_f_ib_updown = ipath_pe_ib_updown;
 
-	/*
-	 * setup the register offsets, since they are different for each
-	 * chip
-	 */
-	dd->ipath_kregs = &ipath_pe_kregs;
-	dd->ipath_cregs = &ipath_pe_cregs;
 
+	/* initialize chip-specific variables */
 	ipath_init_pe_variables(dd);
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index c0ecda35f2d9..6a5fe0157330 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -191,6 +191,22 @@ struct ipath_skbinfo {
 	dma_addr_t phys;
 };
 
+/*
+ * Possible IB config parameters for ipath_f_get/set_ib_cfg()
+ */
+#define IPATH_IB_CFG_LIDLMC 0 /* Get/set LID (LS16b) and Mask (MS16b) */
+#define IPATH_IB_CFG_HRTBT 1 /* Get/set Heartbeat off/enable/auto */
+#define IPATH_IB_HRTBT_ON 3 /* Heartbeat enabled, sent every 100msec */
+#define IPATH_IB_HRTBT_OFF 0 /* Heartbeat off */
+#define IPATH_IB_CFG_LWID_ENB 2 /* Get/set allowed Link-width */
+#define IPATH_IB_CFG_LWID 3 /* Get currently active Link-width */
+#define IPATH_IB_CFG_SPD_ENB 4 /* Get/set allowed Link speeds */
+#define IPATH_IB_CFG_SPD 5 /* Get current Link spd */
+#define IPATH_IB_CFG_RXPOL_ENB 6 /* Get/set Auto-RX-polarity enable */
+#define IPATH_IB_CFG_LREV_ENB 7 /* Get/set Auto-Lane-reversal enable */
+#define IPATH_IB_CFG_LINKLATENCY 8 /* Get Auto-Lane-reversal enable */
+
+
 struct ipath_devdata {
 	struct list_head ipath_list;
 
@@ -231,6 +247,8 @@ struct ipath_devdata {
 	struct _ipath_layer ipath_layer;
 	/* setup intr */
 	int (*ipath_f_intrsetup)(struct ipath_devdata *);
+	/* fallback to alternate interrupt type if possible */
+	int (*ipath_f_intr_fallback)(struct ipath_devdata *);
 	/* setup on-chip bus config */
 	int (*ipath_f_bus)(struct ipath_devdata *, struct pci_dev *);
 	/* hard reset chip */
@@ -253,9 +271,18 @@ struct ipath_devdata {
 	int (*ipath_f_get_base_info)(struct ipath_portdata *, void *);
 	/* free irq */
 	void (*ipath_f_free_irq)(struct ipath_devdata *);
+	struct ipath_message_header *(*ipath_f_get_msgheader)
+					(struct ipath_devdata *, __le32 *);
 	void (*ipath_f_config_ports)(struct ipath_devdata *, ushort);
+	int (*ipath_f_get_ib_cfg)(struct ipath_devdata *, int);
+	int (*ipath_f_set_ib_cfg)(struct ipath_devdata *, int, u32);
+	void (*ipath_f_config_jint)(struct ipath_devdata *, u16 , u16);
 	void (*ipath_f_read_counters)(struct ipath_devdata *,
-				      struct infinipath_counters *);
+					struct infinipath_counters *);
+	void (*ipath_f_xgxs_reset)(struct ipath_devdata *);
+	/* per chip actions needed for IB Link up/down changes */
+	int (*ipath_f_ib_updown)(struct ipath_devdata *, int, u64);
+
 	struct ipath_ibdev *verbs_dev;
 	struct timer_list verbs_timer;
 	/* total dwords sent (summed from counter) */
@@ -375,6 +402,7 @@ struct ipath_devdata {
 	struct page **ipath_pageshadow;
 	/* shadow copy of dma handles for exp tid pages */
 	dma_addr_t *ipath_physshadow;
+	u64 __iomem *ipath_egrtidbase;
 	/* lock to workaround chip bug 9437 */
 	spinlock_t ipath_tid_lock;
 	spinlock_t ipath_sendctrl_lock;
@@ -565,6 +593,14 @@ struct ipath_devdata {
 	u8 ipath_pci_cacheline;
 	/* LID mask control */
 	u8 ipath_lmc;
+	/* link width supported */
+	u8 ipath_link_width_supported;
+	/* link speed supported */
+	u8 ipath_link_speed_supported;
+	u8 ipath_link_width_enabled;
+	u8 ipath_link_speed_enabled;
+	u8 ipath_link_width_active;
+	u8 ipath_link_speed_active;
 	/* Rx Polarity inversion (compensate for ~tx on partner) */
 	u8 ipath_rx_pol_inv;
 
@@ -599,6 +635,8 @@ struct ipath_devdata {
 	 */
 	u32 ipath_i_rcvavail_mask;
 	u32 ipath_i_rcvurg_mask;
+	u16 ipath_i_rcvurg_shift;
+	u16 ipath_i_rcvavail_shift;
 
 	/*
 	 * Register bits for selecting i2c direction and values, used for
@@ -612,6 +650,29 @@ struct ipath_devdata {
 	/* lock for doing RMW of shadows/regs for ExtCtrl and GPIO */
 	spinlock_t ipath_gpio_lock;
 
+	/*
+	 * IB link and linktraining states and masks that vary per chip in
+	 * some way.  Set at init, to avoid each IB status change interrupt
+	 */
+	u8 ibcs_ls_shift;
+	u8 ibcs_lts_mask;
+	u32 ibcs_mask;
+	u32 ib_init;
+	u32 ib_arm;
+	u32 ib_active;
+
+	u16 ipath_rhf_offset; /* offset of RHF within receive header entry */
+
+	/*
+	 * shift/mask for linkcmd, linkinitcmd, maxpktlen in ibccontol
+	 * reg. Changes for IBA7220
+	 */
+	u8 ibcc_lic_mask; /* LinkInitCmd */
+	u8 ibcc_lc_shift; /* LinkCmd */
+	u8 ibcc_mpl_shift; /* Maxpktlen */
+
+	u8 delay_mult;
+
 	/* used to override LED behavior */
 	u8 ipath_led_override;  /* Substituted for normal value, if non-zero */
 	u16 ipath_led_override_timeoff; /* delta to next timer event */
@@ -639,6 +700,10 @@ struct ipath_devdata {
 	 * each of the counters to increment.
 	 */
 	struct ipath_eep_log_mask ipath_eep_st_masks[IPATH_EEP_LOG_CNT];
+
+	/* interrupt mitigation reload register info */
+	u16 ipath_jint_idle_ticks;	/* idle clock ticks */
+	u16 ipath_jint_max_packets;	/* max packets across all ports */
 };
 
 /* Private data for file operations */
@@ -937,6 +1002,27 @@ static inline u64 ipath_read_ireg(const struct ipath_devdata *dd, ipath_kreg r)
 		ipath_read_kreg64(dd, r) : ipath_read_kreg32(dd, r);
 }
 
+/*
+ * from contents of IBCStatus (or a saved copy), return linkstate
+ * Report ACTIVE_DEFER as ACTIVE, because we treat them the same
+ * everywhere, anyway (and should be, for almost all purposes).
+ */
+static inline u32 ipath_ib_linkstate(struct ipath_devdata *dd, u64 ibcs)
+{
+	u32 state = (u32)(ibcs >> dd->ibcs_ls_shift) &
+		INFINIPATH_IBCS_LINKSTATE_MASK;
+	if (state == INFINIPATH_IBCS_L_STATE_ACT_DEFER)
+		state = INFINIPATH_IBCS_L_STATE_ACTIVE;
+	return state;
+}
+
+/* from contents of IBCStatus (or a saved copy), return linktrainingstate */
+static inline u32 ipath_ib_linktrstate(struct ipath_devdata *dd, u64 ibcs)
+{
+	return (u32)(ibcs >> INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) &
+		dd->ibcs_lts_mask;
+}
+
 /*
  * sysfs interface.
  */
-- 
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