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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-03-30 07:46:36 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 19:54:11 -0700
commitb955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (patch)
tree88e47fa3369f95c5673d4d654ae5f432cdc79048 /drivers/net/ethernet/amd/declance.c
parent3c*/acenic/typhoon: Move 3Com Ethernet drivers (diff)
downloadlinux-dev-b955f6ca776f3bab3d1e2c5fb1d247b203cbda14.tar.xz
linux-dev-b955f6ca776f3bab3d1e2c5fb1d247b203cbda14.zip
amd: Move AMD (Lance) chipset drivers
Moves the drivers for the AMD chipsets into drivers/net/ethernet/amd/ and the necessary Kconfig and Makfile changes. The au1000 (Alchemy) driver was also moved into the same directory even though it is not a "Lance" driver. CC: Peter Maydell <pmaydell@chiark.greenend.org.uk> CC: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> CC: "Maciej W. Rozycki" <macro@linux-mips.org> CC: Donald Becker <becker@scyld.com> CC: Sam Creasey <sammy@users.qual.net> CC: Miguel de Icaza <miguel@nuclecu.unam.mx> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> CC: Don Fry <pcnet32@frontier.com> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Russell King <linux@arm.linux.org.uk> CC: David Davies <davies@maniac.ultranet.com> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Pete Popov <ppopov@embeddedalley.com> CC: David Hinds <dahinds@users.sourceforge.net> CC: "Roger C. Pao" <rpao@paonet.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/amd/declance.c')
-rw-r--r--drivers/net/ethernet/amd/declance.c1381
1 files changed, 1381 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
new file mode 100644
index 000000000000..d5598f6584a3
--- /dev/null
+++ b/drivers/net/ethernet/amd/declance.c
@@ -0,0 +1,1381 @@
+/*
+ * Lance ethernet driver for the MIPS processor based
+ * DECstation family
+ *
+ *
+ * adopted from sunlance.c by Richard van den Berg
+ *
+ * Copyright (C) 2002, 2003, 2005, 2006 Maciej W. Rozycki
+ *
+ * additional sources:
+ * - PMAD-AA TURBOchannel Ethernet Module Functional Specification,
+ * Revision 1.2
+ *
+ * History:
+ *
+ * v0.001: The kernel accepts the code and it shows the hardware address.
+ *
+ * v0.002: Removed most sparc stuff, left only some module and dma stuff.
+ *
+ * v0.003: Enhanced base address calculation from proposals by
+ * Harald Koerfgen and Thomas Riemer.
+ *
+ * v0.004: lance-regs is pointing at the right addresses, added prom
+ * check. First start of address mapping and DMA.
+ *
+ * v0.005: started to play around with LANCE-DMA. This driver will not
+ * work for non IOASIC lances. HK
+ *
+ * v0.006: added pointer arrays to lance_private and setup routine for
+ * them in dec_lance_init. HK
+ *
+ * v0.007: Big shit. The LANCE seems to use a different DMA mechanism to
+ * access the init block. This looks like one (short) word at a
+ * time, but the smallest amount the IOASIC can transfer is a
+ * (long) word. So we have a 2-2 padding here. Changed
+ * lance_init_block accordingly. The 16-16 padding for the buffers
+ * seems to be correct. HK
+ *
+ * v0.008: mods to make PMAX_LANCE work. 01/09/1999 triemer
+ *
+ * v0.009: Module support fixes, multiple interfaces support, various
+ * bits. macro
+ *
+ * v0.010: Fixes for the PMAD mapping of the LANCE buffer and for the
+ * PMAX requirement to only use halfword accesses to the
+ * buffer. macro
+ *
+ * v0.011: Converted the PMAD to the driver model. macro
+ */
+
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/if_ether.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/spinlock.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/tc.h>
+#include <linux/types.h>
+
+#include <asm/addrspace.h>
+#include <asm/system.h>
+
+#include <asm/dec/interrupts.h>
+#include <asm/dec/ioasic.h>
+#include <asm/dec/ioasic_addrs.h>
+#include <asm/dec/kn01.h>
+#include <asm/dec/machtype.h>
+#include <asm/dec/system.h>
+
+static char version[] __devinitdata =
+"declance.c: v0.011 by Linux MIPS DECstation task force\n";
+
+MODULE_AUTHOR("Linux MIPS DECstation task force");
+MODULE_DESCRIPTION("DEC LANCE (DECstation onboard, PMAD-xx) driver");
+MODULE_LICENSE("GPL");
+
+#define __unused __attribute__ ((unused))
+
+/*
+ * card types
+ */
+#define ASIC_LANCE 1
+#define PMAD_LANCE 2
+#define PMAX_LANCE 3
+
+
+#define LE_CSR0 0
+#define LE_CSR1 1
+#define LE_CSR2 2
+#define LE_CSR3 3
+
+#define LE_MO_PROM 0x8000 /* Enable promiscuous mode */
+
+#define LE_C0_ERR 0x8000 /* Error: set if BAB, SQE, MISS or ME is set */
+#define LE_C0_BABL 0x4000 /* BAB: Babble: tx timeout. */
+#define LE_C0_CERR 0x2000 /* SQE: Signal quality error */
+#define LE_C0_MISS 0x1000 /* MISS: Missed a packet */
+#define LE_C0_MERR 0x0800 /* ME: Memory error */
+#define LE_C0_RINT 0x0400 /* Received interrupt */
+#define LE_C0_TINT 0x0200 /* Transmitter Interrupt */
+#define LE_C0_IDON 0x0100 /* IFIN: Init finished. */
+#define LE_C0_INTR 0x0080 /* Interrupt or error */
+#define LE_C0_INEA 0x0040 /* Interrupt enable */
+#define LE_C0_RXON 0x0020 /* Receiver on */
+#define LE_C0_TXON 0x0010 /* Transmitter on */
+#define LE_C0_TDMD 0x0008 /* Transmitter demand */
+#define LE_C0_STOP 0x0004 /* Stop the card */
+#define LE_C0_STRT 0x0002 /* Start the card */
+#define LE_C0_INIT 0x0001 /* Init the card */
+
+#define LE_C3_BSWP 0x4 /* SWAP */
+#define LE_C3_ACON 0x2 /* ALE Control */
+#define LE_C3_BCON 0x1 /* Byte control */
+
+/* Receive message descriptor 1 */
+#define LE_R1_OWN 0x8000 /* Who owns the entry */
+#define LE_R1_ERR 0x4000 /* Error: if FRA, OFL, CRC or BUF is set */
+#define LE_R1_FRA 0x2000 /* FRA: Frame error */
+#define LE_R1_OFL 0x1000 /* OFL: Frame overflow */
+#define LE_R1_CRC 0x0800 /* CRC error */
+#define LE_R1_BUF 0x0400 /* BUF: Buffer error */
+#define LE_R1_SOP 0x0200 /* Start of packet */
+#define LE_R1_EOP 0x0100 /* End of packet */
+#define LE_R1_POK 0x0300 /* Packet is complete: SOP + EOP */
+
+/* Transmit message descriptor 1 */
+#define LE_T1_OWN 0x8000 /* Lance owns the packet */
+#define LE_T1_ERR 0x4000 /* Error summary */
+#define LE_T1_EMORE 0x1000 /* Error: more than one retry needed */
+#define LE_T1_EONE 0x0800 /* Error: one retry needed */
+#define LE_T1_EDEF 0x0400 /* Error: deferred */
+#define LE_T1_SOP 0x0200 /* Start of packet */
+#define LE_T1_EOP 0x0100 /* End of packet */
+#define LE_T1_POK 0x0300 /* Packet is complete: SOP + EOP */
+
+#define LE_T3_BUF 0x8000 /* Buffer error */
+#define LE_T3_UFL 0x4000 /* Error underflow */
+#define LE_T3_LCOL 0x1000 /* Error late collision */
+#define LE_T3_CLOS 0x0800 /* Error carrier loss */
+#define LE_T3_RTY 0x0400 /* Error retry */
+#define LE_T3_TDR 0x03ff /* Time Domain Reflectometry counter */
+
+/* Define: 2^4 Tx buffers and 2^4 Rx buffers */
+
+#ifndef LANCE_LOG_TX_BUFFERS
+#define LANCE_LOG_TX_BUFFERS 4
+#define LANCE_LOG_RX_BUFFERS 4
+#endif
+
+#define TX_RING_SIZE (1 << (LANCE_LOG_TX_BUFFERS))
+#define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
+
+#define RX_RING_SIZE (1 << (LANCE_LOG_RX_BUFFERS))
+#define RX_RING_MOD_MASK (RX_RING_SIZE - 1)
+
+#define PKT_BUF_SZ 1536
+#define RX_BUFF_SIZE PKT_BUF_SZ
+#define TX_BUFF_SIZE PKT_BUF_SZ
+
+#undef TEST_HITS
+#define ZERO 0
+
+/*
+ * The DS2100/3100 have a linear 64 kB buffer which supports halfword
+ * accesses only. Each halfword of the buffer is word-aligned in the
+ * CPU address space.
+ *
+ * The PMAD-AA has a 128 kB buffer on-board.
+ *
+ * The IOASIC LANCE devices use a shared memory region. This region
+ * as seen from the CPU is (max) 128 kB long and has to be on an 128 kB
+ * boundary. The LANCE sees this as a 64 kB long continuous memory
+ * region.
+ *
+ * The LANCE's DMA address is used as an index in this buffer and DMA
+ * takes place in bursts of eight 16-bit words which are packed into
+ * four 32-bit words by the IOASIC. This leads to a strange padding:
+ * 16 bytes of valid data followed by a 16 byte gap :-(.
+ */
+
+struct lance_rx_desc {
+ unsigned short rmd0; /* low address of packet */
+ unsigned short rmd1; /* high address of packet
+ and descriptor bits */
+ short length; /* 2s complement (negative!)
+ of buffer length */
+ unsigned short mblength; /* actual number of bytes received */
+};
+
+struct lance_tx_desc {
+ unsigned short tmd0; /* low address of packet */
+ unsigned short tmd1; /* high address of packet
+ and descriptor bits */
+ short length; /* 2s complement (negative!)
+ of buffer length */
+ unsigned short misc;
+};
+
+
+/* First part of the LANCE initialization block, described in databook. */
+struct lance_init_block {
+ unsigned short mode; /* pre-set mode (reg. 15) */
+
+ unsigned short phys_addr[3]; /* physical ethernet address */
+ unsigned short filter[4]; /* multicast filter */
+
+ /* Receive and transmit ring base, along with extra bits. */
+ unsigned short rx_ptr; /* receive descriptor addr */
+ unsigned short rx_len; /* receive len and high addr */
+ unsigned short tx_ptr; /* transmit descriptor addr */
+ unsigned short tx_len; /* transmit len and high addr */
+
+ short gap[4];
+
+ /* The buffer descriptors */
+ struct lance_rx_desc brx_ring[RX_RING_SIZE];
+ struct lance_tx_desc btx_ring[TX_RING_SIZE];
+};
+
+#define BUF_OFFSET_CPU sizeof(struct lance_init_block)
+#define BUF_OFFSET_LNC sizeof(struct lance_init_block)
+
+#define shift_off(off, type) \
+ (type == ASIC_LANCE || type == PMAX_LANCE ? off << 1 : off)
+
+#define lib_off(rt, type) \
+ shift_off(offsetof(struct lance_init_block, rt), type)
+
+#define lib_ptr(ib, rt, type) \
+ ((volatile u16 *)((u8 *)(ib) + lib_off(rt, type)))
+
+#define rds_off(rt, type) \
+ shift_off(offsetof(struct lance_rx_desc, rt), type)
+
+#define rds_ptr(rd, rt, type) \
+ ((volatile u16 *)((u8 *)(rd) + rds_off(rt, type)))
+
+#define tds_off(rt, type) \
+ shift_off(offsetof(struct lance_tx_desc, rt), type)
+
+#define tds_ptr(td, rt, type) \
+ ((volatile u16 *)((u8 *)(td) + tds_off(rt, type)))
+
+struct lance_private {
+ struct net_device *next;
+ int type;
+ int dma_irq;
+ volatile struct lance_regs *ll;
+
+ spinlock_t lock;
+
+ int rx_new, tx_new;
+ int rx_old, tx_old;
+
+ unsigned short busmaster_regval;
+
+ struct timer_list multicast_timer;
+
+ /* Pointers to the ring buffers as seen from the CPU */
+ char *rx_buf_ptr_cpu[RX_RING_SIZE];
+ char *tx_buf_ptr_cpu[TX_RING_SIZE];
+
+ /* Pointers to the ring buffers as seen from the LANCE */
+ uint rx_buf_ptr_lnc[RX_RING_SIZE];
+ uint tx_buf_ptr_lnc[TX_RING_SIZE];
+};
+
+#define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\
+ lp->tx_old+TX_RING_MOD_MASK-lp->tx_new:\
+ lp->tx_old - lp->tx_new-1)
+
+/* The lance control ports are at an absolute address, machine and tc-slot
+ * dependent.
+ * DECstations do only 32-bit access and the LANCE uses 16 bit addresses,
+ * so we have to give the structure an extra member making rap pointing
+ * at the right address
+ */
+struct lance_regs {
+ volatile unsigned short rdp; /* register data port */
+ unsigned short pad;
+ volatile unsigned short rap; /* register address port */
+};
+
+int dec_lance_debug = 2;
+
+static struct tc_driver dec_lance_tc_driver;
+static struct net_device *root_lance_dev;
+
+static inline void writereg(volatile unsigned short *regptr, short value)
+{
+ *regptr = value;
+ iob();
+}
+
+/* Load the CSR registers */
+static void load_csrs(struct lance_private *lp)
+{
+ volatile struct lance_regs *ll = lp->ll;
+ uint leptr;
+
+ /* The address space as seen from the LANCE
+ * begins at address 0. HK
+ */
+ leptr = 0;
+
+ writereg(&ll->rap, LE_CSR1);
+ writereg(&ll->rdp, (leptr & 0xFFFF));
+ writereg(&ll->rap, LE_CSR2);
+ writereg(&ll->rdp, leptr >> 16);
+ writereg(&ll->rap, LE_CSR3);
+ writereg(&ll->rdp, lp->busmaster_regval);
+
+ /* Point back to csr0 */
+ writereg(&ll->rap, LE_CSR0);
+}
+
+/*
+ * Our specialized copy routines
+ *
+ */
+static void cp_to_buf(const int type, void *to, const void *from, int len)
+{
+ unsigned short *tp;
+ const unsigned short *fp;
+ unsigned short clen;
+ unsigned char *rtp;
+ const unsigned char *rfp;
+
+ if (type == PMAD_LANCE) {
+ memcpy(to, from, len);
+ } else if (type == PMAX_LANCE) {
+ clen = len >> 1;
+ tp = to;
+ fp = from;
+
+ while (clen--) {
+ *tp++ = *fp++;
+ tp++;
+ }
+
+ clen = len & 1;
+ rtp = tp;
+ rfp = fp;
+ while (clen--) {
+ *rtp++ = *rfp++;
+ }
+ } else {
+ /*
+ * copy 16 Byte chunks
+ */
+ clen = len >> 4;
+ tp = to;
+ fp = from;
+ while (clen--) {
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ tp += 8;
+ }
+
+ /*
+ * do the rest, if any.
+ */
+ clen = len & 15;
+ rtp = (unsigned char *) tp;
+ rfp = (unsigned char *) fp;
+ while (clen--) {
+ *rtp++ = *rfp++;
+ }
+ }
+
+ iob();
+}
+
+static void cp_from_buf(const int type, void *to, const void *from, int len)
+{
+ unsigned short *tp;
+ const unsigned short *fp;
+ unsigned short clen;
+ unsigned char *rtp;
+ const unsigned char *rfp;
+
+ if (type == PMAD_LANCE) {
+ memcpy(to, from, len);
+ } else if (type == PMAX_LANCE) {
+ clen = len >> 1;
+ tp = to;
+ fp = from;
+ while (clen--) {
+ *tp++ = *fp++;
+ fp++;
+ }
+
+ clen = len & 1;
+
+ rtp = tp;
+ rfp = fp;
+
+ while (clen--) {
+ *rtp++ = *rfp++;
+ }
+ } else {
+
+ /*
+ * copy 16 Byte chunks
+ */
+ clen = len >> 4;
+ tp = to;
+ fp = from;
+ while (clen--) {
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ *tp++ = *fp++;
+ fp += 8;
+ }
+
+ /*
+ * do the rest, if any.
+ */
+ clen = len & 15;
+ rtp = (unsigned char *) tp;
+ rfp = (unsigned char *) fp;
+ while (clen--) {
+ *rtp++ = *rfp++;
+ }
+
+
+ }
+
+}
+
+/* Setup the Lance Rx and Tx rings */
+static void lance_init_ring(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ uint leptr;
+ int i;
+
+ /* Lock out other processes while setting up hardware */
+ netif_stop_queue(dev);
+ lp->rx_new = lp->tx_new = 0;
+ lp->rx_old = lp->tx_old = 0;
+
+ /* Copy the ethernet address to the lance init block.
+ * XXX bit 0 of the physical address registers has to be zero
+ */
+ *lib_ptr(ib, phys_addr[0], lp->type) = (dev->dev_addr[1] << 8) |
+ dev->dev_addr[0];
+ *lib_ptr(ib, phys_addr[1], lp->type) = (dev->dev_addr[3] << 8) |
+ dev->dev_addr[2];
+ *lib_ptr(ib, phys_addr[2], lp->type) = (dev->dev_addr[5] << 8) |
+ dev->dev_addr[4];
+ /* Setup the initialization block */
+
+ /* Setup rx descriptor pointer */
+ leptr = offsetof(struct lance_init_block, brx_ring);
+ *lib_ptr(ib, rx_len, lp->type) = (LANCE_LOG_RX_BUFFERS << 13) |
+ (leptr >> 16);
+ *lib_ptr(ib, rx_ptr, lp->type) = leptr;
+ if (ZERO)
+ printk("RX ptr: %8.8x(%8.8x)\n",
+ leptr, lib_off(brx_ring, lp->type));
+
+ /* Setup tx descriptor pointer */
+ leptr = offsetof(struct lance_init_block, btx_ring);
+ *lib_ptr(ib, tx_len, lp->type) = (LANCE_LOG_TX_BUFFERS << 13) |
+ (leptr >> 16);
+ *lib_ptr(ib, tx_ptr, lp->type) = leptr;
+ if (ZERO)
+ printk("TX ptr: %8.8x(%8.8x)\n",
+ leptr, lib_off(btx_ring, lp->type));
+
+ if (ZERO)
+ printk("TX rings:\n");
+
+ /* Setup the Tx ring entries */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ leptr = lp->tx_buf_ptr_lnc[i];
+ *lib_ptr(ib, btx_ring[i].tmd0, lp->type) = leptr;
+ *lib_ptr(ib, btx_ring[i].tmd1, lp->type) = (leptr >> 16) &
+ 0xff;
+ *lib_ptr(ib, btx_ring[i].length, lp->type) = 0xf000;
+ /* The ones required by tmd2 */
+ *lib_ptr(ib, btx_ring[i].misc, lp->type) = 0;
+ if (i < 3 && ZERO)
+ printk("%d: 0x%8.8x(0x%8.8x)\n",
+ i, leptr, (uint)lp->tx_buf_ptr_cpu[i]);
+ }
+
+ /* Setup the Rx ring entries */
+ if (ZERO)
+ printk("RX rings:\n");
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ leptr = lp->rx_buf_ptr_lnc[i];
+ *lib_ptr(ib, brx_ring[i].rmd0, lp->type) = leptr;
+ *lib_ptr(ib, brx_ring[i].rmd1, lp->type) = ((leptr >> 16) &
+ 0xff) |
+ LE_R1_OWN;
+ *lib_ptr(ib, brx_ring[i].length, lp->type) = -RX_BUFF_SIZE |
+ 0xf000;
+ *lib_ptr(ib, brx_ring[i].mblength, lp->type) = 0;
+ if (i < 3 && ZERO)
+ printk("%d: 0x%8.8x(0x%8.8x)\n",
+ i, leptr, (uint)lp->rx_buf_ptr_cpu[i]);
+ }
+ iob();
+}
+
+static int init_restart_lance(struct lance_private *lp)
+{
+ volatile struct lance_regs *ll = lp->ll;
+ int i;
+
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_INIT);
+
+ /* Wait for the lance to complete initialization */
+ for (i = 0; (i < 100) && !(ll->rdp & LE_C0_IDON); i++) {
+ udelay(10);
+ }
+ if ((i == 100) || (ll->rdp & LE_C0_ERR)) {
+ printk("LANCE unopened after %d ticks, csr0=%4.4x.\n",
+ i, ll->rdp);
+ return -1;
+ }
+ if ((ll->rdp & LE_C0_ERR)) {
+ printk("LANCE unopened after %d ticks, csr0=%4.4x.\n",
+ i, ll->rdp);
+ return -1;
+ }
+ writereg(&ll->rdp, LE_C0_IDON);
+ writereg(&ll->rdp, LE_C0_STRT);
+ writereg(&ll->rdp, LE_C0_INEA);
+
+ return 0;
+}
+
+static int lance_rx(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ volatile u16 *rd;
+ unsigned short bits;
+ int entry, len;
+ struct sk_buff *skb;
+
+#ifdef TEST_HITS
+ {
+ int i;
+
+ printk("[");
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ if (i == lp->rx_new)
+ printk("%s", *lib_ptr(ib, brx_ring[i].rmd1,
+ lp->type) &
+ LE_R1_OWN ? "_" : "X");
+ else
+ printk("%s", *lib_ptr(ib, brx_ring[i].rmd1,
+ lp->type) &
+ LE_R1_OWN ? "." : "1");
+ }
+ printk("]");
+ }
+#endif
+
+ for (rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type);
+ !((bits = *rds_ptr(rd, rmd1, lp->type)) & LE_R1_OWN);
+ rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type)) {
+ entry = lp->rx_new;
+
+ /* We got an incomplete frame? */
+ if ((bits & LE_R1_POK) != LE_R1_POK) {
+ dev->stats.rx_over_errors++;
+ dev->stats.rx_errors++;
+ } else if (bits & LE_R1_ERR) {
+ /* Count only the end frame as a rx error,
+ * not the beginning
+ */
+ if (bits & LE_R1_BUF)
+ dev->stats.rx_fifo_errors++;
+ if (bits & LE_R1_CRC)
+ dev->stats.rx_crc_errors++;
+ if (bits & LE_R1_OFL)
+ dev->stats.rx_over_errors++;
+ if (bits & LE_R1_FRA)
+ dev->stats.rx_frame_errors++;
+ if (bits & LE_R1_EOP)
+ dev->stats.rx_errors++;
+ } else {
+ len = (*rds_ptr(rd, mblength, lp->type) & 0xfff) - 4;
+ skb = dev_alloc_skb(len + 2);
+
+ if (skb == 0) {
+ printk("%s: Memory squeeze, deferring packet.\n",
+ dev->name);
+ dev->stats.rx_dropped++;
+ *rds_ptr(rd, mblength, lp->type) = 0;
+ *rds_ptr(rd, rmd1, lp->type) =
+ ((lp->rx_buf_ptr_lnc[entry] >> 16) &
+ 0xff) | LE_R1_OWN;
+ lp->rx_new = (entry + 1) & RX_RING_MOD_MASK;
+ return 0;
+ }
+ dev->stats.rx_bytes += len;
+
+ skb_reserve(skb, 2); /* 16 byte align */
+ skb_put(skb, len); /* make room */
+
+ cp_from_buf(lp->type, skb->data,
+ (char *)lp->rx_buf_ptr_cpu[entry], len);
+
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ }
+
+ /* Return the packet to the pool */
+ *rds_ptr(rd, mblength, lp->type) = 0;
+ *rds_ptr(rd, length, lp->type) = -RX_BUFF_SIZE | 0xf000;
+ *rds_ptr(rd, rmd1, lp->type) =
+ ((lp->rx_buf_ptr_lnc[entry] >> 16) & 0xff) | LE_R1_OWN;
+ lp->rx_new = (entry + 1) & RX_RING_MOD_MASK;
+ }
+ return 0;
+}
+
+static void lance_tx(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ volatile struct lance_regs *ll = lp->ll;
+ volatile u16 *td;
+ int i, j;
+ int status;
+
+ j = lp->tx_old;
+
+ spin_lock(&lp->lock);
+
+ for (i = j; i != lp->tx_new; i = j) {
+ td = lib_ptr(ib, btx_ring[i], lp->type);
+ /* If we hit a packet not owned by us, stop */
+ if (*tds_ptr(td, tmd1, lp->type) & LE_T1_OWN)
+ break;
+
+ if (*tds_ptr(td, tmd1, lp->type) & LE_T1_ERR) {
+ status = *tds_ptr(td, misc, lp->type);
+
+ dev->stats.tx_errors++;
+ if (status & LE_T3_RTY)
+ dev->stats.tx_aborted_errors++;
+ if (status & LE_T3_LCOL)
+ dev->stats.tx_window_errors++;
+
+ if (status & LE_T3_CLOS) {
+ dev->stats.tx_carrier_errors++;
+ printk("%s: Carrier Lost\n", dev->name);
+ /* Stop the lance */
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+ lance_init_ring(dev);
+ load_csrs(lp);
+ init_restart_lance(lp);
+ goto out;
+ }
+ /* Buffer errors and underflows turn off the
+ * transmitter, restart the adapter.
+ */
+ if (status & (LE_T3_BUF | LE_T3_UFL)) {
+ dev->stats.tx_fifo_errors++;
+
+ printk("%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
+ dev->name);
+ /* Stop the lance */
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+ lance_init_ring(dev);
+ load_csrs(lp);
+ init_restart_lance(lp);
+ goto out;
+ }
+ } else if ((*tds_ptr(td, tmd1, lp->type) & LE_T1_POK) ==
+ LE_T1_POK) {
+ /*
+ * So we don't count the packet more than once.
+ */
+ *tds_ptr(td, tmd1, lp->type) &= ~(LE_T1_POK);
+
+ /* One collision before packet was sent. */
+ if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EONE)
+ dev->stats.collisions++;
+
+ /* More than one collision, be optimistic. */
+ if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EMORE)
+ dev->stats.collisions += 2;
+
+ dev->stats.tx_packets++;
+ }
+ j = (j + 1) & TX_RING_MOD_MASK;
+ }
+ lp->tx_old = j;
+out:
+ if (netif_queue_stopped(dev) &&
+ TX_BUFFS_AVAIL > 0)
+ netif_wake_queue(dev);
+
+ spin_unlock(&lp->lock);
+}
+
+static irqreturn_t lance_dma_merr_int(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+
+ printk(KERN_ERR "%s: DMA error\n", dev->name);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t lance_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+ int csr0;
+
+ writereg(&ll->rap, LE_CSR0);
+ csr0 = ll->rdp;
+
+ /* Acknowledge all the interrupt sources ASAP */
+ writereg(&ll->rdp, csr0 & (LE_C0_INTR | LE_C0_TINT | LE_C0_RINT));
+
+ if ((csr0 & LE_C0_ERR)) {
+ /* Clear the error condition */
+ writereg(&ll->rdp, LE_C0_BABL | LE_C0_ERR | LE_C0_MISS |
+ LE_C0_CERR | LE_C0_MERR);
+ }
+ if (csr0 & LE_C0_RINT)
+ lance_rx(dev);
+
+ if (csr0 & LE_C0_TINT)
+ lance_tx(dev);
+
+ if (csr0 & LE_C0_BABL)
+ dev->stats.tx_errors++;
+
+ if (csr0 & LE_C0_MISS)
+ dev->stats.rx_errors++;
+
+ if (csr0 & LE_C0_MERR) {
+ printk("%s: Memory error, status %04x\n", dev->name, csr0);
+
+ writereg(&ll->rdp, LE_C0_STOP);
+
+ lance_init_ring(dev);
+ load_csrs(lp);
+ init_restart_lance(lp);
+ netif_wake_queue(dev);
+ }
+
+ writereg(&ll->rdp, LE_C0_INEA);
+ writereg(&ll->rdp, LE_C0_INEA);
+ return IRQ_HANDLED;
+}
+
+static int lance_open(struct net_device *dev)
+{
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+ int status = 0;
+
+ /* Stop the Lance */
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+
+ /* Set mode and clear multicast filter only at device open,
+ * so that lance_init_ring() called at any error will not
+ * forget multicast filters.
+ *
+ * BTW it is common bug in all lance drivers! --ANK
+ */
+ *lib_ptr(ib, mode, lp->type) = 0;
+ *lib_ptr(ib, filter[0], lp->type) = 0;
+ *lib_ptr(ib, filter[1], lp->type) = 0;
+ *lib_ptr(ib, filter[2], lp->type) = 0;
+ *lib_ptr(ib, filter[3], lp->type) = 0;
+
+ lance_init_ring(dev);
+ load_csrs(lp);
+
+ netif_start_queue(dev);
+
+ /* Associate IRQ with lance_interrupt */
+ if (request_irq(dev->irq, lance_interrupt, 0, "lance", dev)) {
+ printk("%s: Can't get IRQ %d\n", dev->name, dev->irq);
+ return -EAGAIN;
+ }
+ if (lp->dma_irq >= 0) {
+ unsigned long flags;
+
+ if (request_irq(lp->dma_irq, lance_dma_merr_int, 0,
+ "lance error", dev)) {
+ free_irq(dev->irq, dev);
+ printk("%s: Can't get DMA IRQ %d\n", dev->name,
+ lp->dma_irq);
+ return -EAGAIN;
+ }
+
+ spin_lock_irqsave(&ioasic_ssr_lock, flags);
+
+ fast_mb();
+ /* Enable I/O ASIC LANCE DMA. */
+ ioasic_write(IO_REG_SSR,
+ ioasic_read(IO_REG_SSR) | IO_SSR_LANCE_DMA_EN);
+
+ fast_mb();
+ spin_unlock_irqrestore(&ioasic_ssr_lock, flags);
+ }
+
+ status = init_restart_lance(lp);
+ return status;
+}
+
+static int lance_close(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+
+ netif_stop_queue(dev);
+ del_timer_sync(&lp->multicast_timer);
+
+ /* Stop the card */
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+
+ if (lp->dma_irq >= 0) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioasic_ssr_lock, flags);
+
+ fast_mb();
+ /* Disable I/O ASIC LANCE DMA. */
+ ioasic_write(IO_REG_SSR,
+ ioasic_read(IO_REG_SSR) & ~IO_SSR_LANCE_DMA_EN);
+
+ fast_iob();
+ spin_unlock_irqrestore(&ioasic_ssr_lock, flags);
+
+ free_irq(lp->dma_irq, dev);
+ }
+ free_irq(dev->irq, dev);
+ return 0;
+}
+
+static inline int lance_reset(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+ int status;
+
+ /* Stop the lance */
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+
+ lance_init_ring(dev);
+ load_csrs(lp);
+ dev->trans_start = jiffies; /* prevent tx timeout */
+ status = init_restart_lance(lp);
+ return status;
+}
+
+static void lance_tx_timeout(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+
+ printk(KERN_ERR "%s: transmit timed out, status %04x, reset\n",
+ dev->name, ll->rdp);
+ lance_reset(dev);
+ netif_wake_queue(dev);
+}
+
+static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile struct lance_regs *ll = lp->ll;
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ unsigned long flags;
+ int entry, len;
+
+ len = skb->len;
+
+ if (len < ETH_ZLEN) {
+ if (skb_padto(skb, ETH_ZLEN))
+ return NETDEV_TX_OK;
+ len = ETH_ZLEN;
+ }
+
+ dev->stats.tx_bytes += len;
+
+ spin_lock_irqsave(&lp->lock, flags);
+
+ entry = lp->tx_new;
+ *lib_ptr(ib, btx_ring[entry].length, lp->type) = (-len);
+ *lib_ptr(ib, btx_ring[entry].misc, lp->type) = 0;
+
+ cp_to_buf(lp->type, (char *)lp->tx_buf_ptr_cpu[entry], skb->data, len);
+
+ /* Now, give the packet to the lance */
+ *lib_ptr(ib, btx_ring[entry].tmd1, lp->type) =
+ ((lp->tx_buf_ptr_lnc[entry] >> 16) & 0xff) |
+ (LE_T1_POK | LE_T1_OWN);
+ lp->tx_new = (entry + 1) & TX_RING_MOD_MASK;
+
+ if (TX_BUFFS_AVAIL <= 0)
+ netif_stop_queue(dev);
+
+ /* Kick the lance: transmit now */
+ writereg(&ll->rdp, LE_C0_INEA | LE_C0_TDMD);
+
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static void lance_load_multicast(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ struct netdev_hw_addr *ha;
+ u32 crc;
+
+ /* set all multicast bits */
+ if (dev->flags & IFF_ALLMULTI) {
+ *lib_ptr(ib, filter[0], lp->type) = 0xffff;
+ *lib_ptr(ib, filter[1], lp->type) = 0xffff;
+ *lib_ptr(ib, filter[2], lp->type) = 0xffff;
+ *lib_ptr(ib, filter[3], lp->type) = 0xffff;
+ return;
+ }
+ /* clear the multicast filter */
+ *lib_ptr(ib, filter[0], lp->type) = 0;
+ *lib_ptr(ib, filter[1], lp->type) = 0;
+ *lib_ptr(ib, filter[2], lp->type) = 0;
+ *lib_ptr(ib, filter[3], lp->type) = 0;
+
+ /* Add addresses */
+ netdev_for_each_mc_addr(ha, dev) {
+ crc = ether_crc_le(ETH_ALEN, ha->addr);
+ crc = crc >> 26;
+ *lib_ptr(ib, filter[crc >> 4], lp->type) |= 1 << (crc & 0xf);
+ }
+}
+
+static void lance_set_multicast(struct net_device *dev)
+{
+ struct lance_private *lp = netdev_priv(dev);
+ volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ volatile struct lance_regs *ll = lp->ll;
+
+ if (!netif_running(dev))
+ return;
+
+ if (lp->tx_old != lp->tx_new) {
+ mod_timer(&lp->multicast_timer, jiffies + 4 * HZ/100);
+ netif_wake_queue(dev);
+ return;
+ }
+
+ netif_stop_queue(dev);
+
+ writereg(&ll->rap, LE_CSR0);
+ writereg(&ll->rdp, LE_C0_STOP);
+
+ lance_init_ring(dev);
+
+ if (dev->flags & IFF_PROMISC) {
+ *lib_ptr(ib, mode, lp->type) |= LE_MO_PROM;
+ } else {
+ *lib_ptr(ib, mode, lp->type) &= ~LE_MO_PROM;
+ lance_load_multicast(dev);
+ }
+ load_csrs(lp);
+ init_restart_lance(lp);
+ netif_wake_queue(dev);
+}
+
+static void lance_set_multicast_retry(unsigned long _opaque)
+{
+ struct net_device *dev = (struct net_device *) _opaque;
+
+ lance_set_multicast(dev);
+}
+
+static const struct net_device_ops lance_netdev_ops = {
+ .ndo_open = lance_open,
+ .ndo_stop = lance_close,
+ .ndo_start_xmit = lance_start_xmit,
+ .ndo_tx_timeout = lance_tx_timeout,
+ .ndo_set_multicast_list = lance_set_multicast,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+};
+
+static int __devinit dec_lance_probe(struct device *bdev, const int type)
+{
+ static unsigned version_printed;
+ static const char fmt[] = "declance%d";
+ char name[10];
+ struct net_device *dev;
+ struct lance_private *lp;
+ volatile struct lance_regs *ll;
+ resource_size_t start = 0, len = 0;
+ int i, ret;
+ unsigned long esar_base;
+ unsigned char *esar;
+
+ if (dec_lance_debug && version_printed++ == 0)
+ printk(version);
+
+ if (bdev)
+ snprintf(name, sizeof(name), "%s", dev_name(bdev));
+ else {
+ i = 0;
+ dev = root_lance_dev;
+ while (dev) {
+ i++;
+ lp = netdev_priv(dev);
+ dev = lp->next;
+ }
+ snprintf(name, sizeof(name), fmt, i);
+ }
+
+ dev = alloc_etherdev(sizeof(struct lance_private));
+ if (!dev) {
+ printk(KERN_ERR "%s: Unable to allocate etherdev, aborting.\n",
+ name);
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
+ /*
+ * alloc_etherdev ensures the data structures used by the LANCE
+ * are aligned.
+ */
+ lp = netdev_priv(dev);
+ spin_lock_init(&lp->lock);
+
+ lp->type = type;
+ switch (type) {
+ case ASIC_LANCE:
+ dev->base_addr = CKSEG1ADDR(dec_kn_slot_base + IOASIC_LANCE);
+
+ /* buffer space for the on-board LANCE shared memory */
+ /*
+ * FIXME: ugly hack!
+ */
+ dev->mem_start = CKSEG1ADDR(0x00020000);
+ dev->mem_end = dev->mem_start + 0x00020000;
+ dev->irq = dec_interrupt[DEC_IRQ_LANCE];
+ esar_base = CKSEG1ADDR(dec_kn_slot_base + IOASIC_ESAR);
+
+ /* Workaround crash with booting KN04 2.1k from Disk */
+ memset((void *)dev->mem_start, 0,
+ dev->mem_end - dev->mem_start);
+
+ /*
+ * setup the pointer arrays, this sucks [tm] :-(
+ */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ lp->rx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU +
+ 2 * i * RX_BUFF_SIZE);
+ lp->rx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC + i * RX_BUFF_SIZE);
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ lp->tx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU +
+ 2 * RX_RING_SIZE * RX_BUFF_SIZE +
+ 2 * i * TX_BUFF_SIZE);
+ lp->tx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC +
+ RX_RING_SIZE * RX_BUFF_SIZE +
+ i * TX_BUFF_SIZE);
+ }
+
+ /* Setup I/O ASIC LANCE DMA. */
+ lp->dma_irq = dec_interrupt[DEC_IRQ_LANCE_MERR];
+ ioasic_write(IO_REG_LANCE_DMA_P,
+ CPHYSADDR(dev->mem_start) << 3);
+
+ break;
+#ifdef CONFIG_TC
+ case PMAD_LANCE:
+ dev_set_drvdata(bdev, dev);
+
+ start = to_tc_dev(bdev)->resource.start;
+ len = to_tc_dev(bdev)->resource.end - start + 1;
+ if (!request_mem_region(start, len, dev_name(bdev))) {
+ printk(KERN_ERR
+ "%s: Unable to reserve MMIO resource\n",
+ dev_name(bdev));
+ ret = -EBUSY;
+ goto err_out_dev;
+ }
+
+ dev->mem_start = CKSEG1ADDR(start);
+ dev->mem_end = dev->mem_start + 0x100000;
+ dev->base_addr = dev->mem_start + 0x100000;
+ dev->irq = to_tc_dev(bdev)->interrupt;
+ esar_base = dev->mem_start + 0x1c0002;
+ lp->dma_irq = -1;
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ lp->rx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + BUF_OFFSET_CPU +
+ i * RX_BUFF_SIZE);
+ lp->rx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC + i * RX_BUFF_SIZE);
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ lp->tx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + BUF_OFFSET_CPU +
+ RX_RING_SIZE * RX_BUFF_SIZE +
+ i * TX_BUFF_SIZE);
+ lp->tx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC +
+ RX_RING_SIZE * RX_BUFF_SIZE +
+ i * TX_BUFF_SIZE);
+ }
+
+ break;
+#endif
+ case PMAX_LANCE:
+ dev->irq = dec_interrupt[DEC_IRQ_LANCE];
+ dev->base_addr = CKSEG1ADDR(KN01_SLOT_BASE + KN01_LANCE);
+ dev->mem_start = CKSEG1ADDR(KN01_SLOT_BASE + KN01_LANCE_MEM);
+ dev->mem_end = dev->mem_start + KN01_SLOT_SIZE;
+ esar_base = CKSEG1ADDR(KN01_SLOT_BASE + KN01_ESAR + 1);
+ lp->dma_irq = -1;
+
+ /*
+ * setup the pointer arrays, this sucks [tm] :-(
+ */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ lp->rx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU +
+ 2 * i * RX_BUFF_SIZE);
+ lp->rx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC + i * RX_BUFF_SIZE);
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ lp->tx_buf_ptr_cpu[i] =
+ (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU +
+ 2 * RX_RING_SIZE * RX_BUFF_SIZE +
+ 2 * i * TX_BUFF_SIZE);
+ lp->tx_buf_ptr_lnc[i] =
+ (BUF_OFFSET_LNC +
+ RX_RING_SIZE * RX_BUFF_SIZE +
+ i * TX_BUFF_SIZE);
+ }
+
+ break;
+
+ default:
+ printk(KERN_ERR "%s: declance_init called with unknown type\n",
+ name);
+ ret = -ENODEV;
+ goto err_out_dev;
+ }
+
+ ll = (struct lance_regs *) dev->base_addr;
+ esar = (unsigned char *) esar_base;
+
+ /* prom checks */
+ /* First, check for test pattern */
+ if (esar[0x60] != 0xff && esar[0x64] != 0x00 &&
+ esar[0x68] != 0x55 && esar[0x6c] != 0xaa) {
+ printk(KERN_ERR
+ "%s: Ethernet station address prom not found!\n",
+ name);
+ ret = -ENODEV;
+ goto err_out_resource;
+ }
+ /* Check the prom contents */
+ for (i = 0; i < 8; i++) {
+ if (esar[i * 4] != esar[0x3c - i * 4] &&
+ esar[i * 4] != esar[0x40 + i * 4] &&
+ esar[0x3c - i * 4] != esar[0x40 + i * 4]) {
+ printk(KERN_ERR "%s: Something is wrong with the "
+ "ethernet station address prom!\n", name);
+ ret = -ENODEV;
+ goto err_out_resource;
+ }
+ }
+
+ /* Copy the ethernet address to the device structure, later to the
+ * lance initialization block so the lance gets it every time it's
+ * (re)initialized.
+ */
+ switch (type) {
+ case ASIC_LANCE:
+ printk("%s: IOASIC onboard LANCE", name);
+ break;
+ case PMAD_LANCE:
+ printk("%s: PMAD-AA", name);
+ break;
+ case PMAX_LANCE:
+ printk("%s: PMAX onboard LANCE", name);
+ break;
+ }
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = esar[i * 4];
+
+ printk(", addr = %pM, irq = %d\n", dev->dev_addr, dev->irq);
+
+ dev->netdev_ops = &lance_netdev_ops;
+ dev->watchdog_timeo = 5*HZ;
+
+ /* lp->ll is the location of the registers for lance card */
+ lp->ll = ll;
+
+ /* busmaster_regval (CSR3) should be zero according to the PMAD-AA
+ * specification.
+ */
+ lp->busmaster_regval = 0;
+
+ dev->dma = 0;
+
+ /* We cannot sleep if the chip is busy during a
+ * multicast list update event, because such events
+ * can occur from interrupts (ex. IPv6). So we
+ * use a timer to try again later when necessary. -DaveM
+ */
+ init_timer(&lp->multicast_timer);
+ lp->multicast_timer.data = (unsigned long) dev;
+ lp->multicast_timer.function = lance_set_multicast_retry;
+
+ ret = register_netdev(dev);
+ if (ret) {
+ printk(KERN_ERR
+ "%s: Unable to register netdev, aborting.\n", name);
+ goto err_out_resource;
+ }
+
+ if (!bdev) {
+ lp->next = root_lance_dev;
+ root_lance_dev = dev;
+ }
+
+ printk("%s: registered as %s.\n", name, dev->name);
+ return 0;
+
+err_out_resource:
+ if (bdev)
+ release_mem_region(start, len);
+
+err_out_dev:
+ free_netdev(dev);
+
+err_out:
+ return ret;
+}
+
+static void __exit dec_lance_remove(struct device *bdev)
+{
+ struct net_device *dev = dev_get_drvdata(bdev);
+ resource_size_t start, len;
+
+ unregister_netdev(dev);
+ start = to_tc_dev(bdev)->resource.start;
+ len = to_tc_dev(bdev)->resource.end - start + 1;
+ release_mem_region(start, len);
+ free_netdev(dev);
+}
+
+/* Find all the lance cards on the system and initialize them */
+static int __init dec_lance_platform_probe(void)
+{
+ int count = 0;
+
+ if (dec_interrupt[DEC_IRQ_LANCE] >= 0) {
+ if (dec_interrupt[DEC_IRQ_LANCE_MERR] >= 0) {
+ if (dec_lance_probe(NULL, ASIC_LANCE) >= 0)
+ count++;
+ } else if (!TURBOCHANNEL) {
+ if (dec_lance_probe(NULL, PMAX_LANCE) >= 0)
+ count++;
+ }
+ }
+
+ return (count > 0) ? 0 : -ENODEV;
+}
+
+static void __exit dec_lance_platform_remove(void)
+{
+ while (root_lance_dev) {
+ struct net_device *dev = root_lance_dev;
+ struct lance_private *lp = netdev_priv(dev);
+
+ unregister_netdev(dev);
+ root_lance_dev = lp->next;
+ free_netdev(dev);
+ }
+}
+
+#ifdef CONFIG_TC
+static int __devinit dec_lance_tc_probe(struct device *dev);
+static int __exit dec_lance_tc_remove(struct device *dev);
+
+static const struct tc_device_id dec_lance_tc_table[] = {
+ { "DEC ", "PMAD-AA " },
+ { }
+};
+MODULE_DEVICE_TABLE(tc, dec_lance_tc_table);
+
+static struct tc_driver dec_lance_tc_driver = {
+ .id_table = dec_lance_tc_table,
+ .driver = {
+ .name = "declance",
+ .bus = &tc_bus_type,
+ .probe = dec_lance_tc_probe,
+ .remove = __exit_p(dec_lance_tc_remove),
+ },
+};
+
+static int __devinit dec_lance_tc_probe(struct device *dev)
+{
+ int status = dec_lance_probe(dev, PMAD_LANCE);
+ if (!status)
+ get_device(dev);
+ return status;
+}
+
+static int __exit dec_lance_tc_remove(struct device *dev)
+{
+ put_device(dev);
+ dec_lance_remove(dev);
+ return 0;
+}
+#endif
+
+static int __init dec_lance_init(void)
+{
+ int status;
+
+ status = tc_register_driver(&dec_lance_tc_driver);
+ if (!status)
+ dec_lance_platform_probe();
+ return status;
+}
+
+static void __exit dec_lance_exit(void)
+{
+ dec_lance_platform_remove();
+ tc_unregister_driver(&dec_lance_tc_driver);
+}
+
+
+module_init(dec_lance_init);
+module_exit(dec_lance_exit);