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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-07-13 15:38:08 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 20:04:12 -0700
commit115978859272b958366d4a08c99a24f9625fa663 (patch)
treee3eb08a76c0180bd5efa36985306878cbea5845f /drivers/net/82596.c
parentae150435b59e68de00546330241727f2fec54517 (diff)
i825xx: Move the Intel 82586/82593/82596 based drivers
Move the drivers that use the i82586/i82593/i82596 chipsets into drivers/net/ethernet/i825xx/ and make the necessary Kconfig and Makefile changes. There were 4 3Com drivers which were initially moved into 3com/, which now reside in i825xx since they all used the i82586 chip. CC: Philip Blundell <philb@gnu.org> CC: Russell King <linux@arm.linux.org.uk> CC: <aris@cathedrallabs.org> CC: Donald Becker <becker@scyld.com> CC: Chris Beauregard <cpbeaure@undergrad.math.uwaterloo.ca> CC: Richard Procter <rnp@paradise.net.nz> CC: Andries Brouwer <aeb@cwi.nl> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Richard Hirst <richard@sleepie.demon.co.uk> CC: Sam Creasey <sammy@oh.verio.com> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/82596.c')
-rw-r--r--drivers/net/82596.c1632
1 files changed, 0 insertions, 1632 deletions
diff --git a/drivers/net/82596.c b/drivers/net/82596.c
deleted file mode 100644
index be1f1970c842..000000000000
--- a/drivers/net/82596.c
+++ /dev/null
@@ -1,1632 +0,0 @@
-/* 82596.c: A generic 82596 ethernet driver for linux. */
-/*
- Based on Apricot.c
- Written 1994 by Mark Evans.
- This driver is for the Apricot 82596 bus-master interface
-
- Modularised 12/94 Mark Evans
-
-
- Modified to support the 82596 ethernet chips on 680x0 VME boards.
- by Richard Hirst <richard@sleepie.demon.co.uk>
- Renamed to be 82596.c
-
- 980825: Changed to receive directly in to sk_buffs which are
- allocated at open() time. Eliminates copy on incoming frames
- (small ones are still copied). Shared data now held in a
- non-cached page, so we can run on 68060 in copyback mode.
-
- TBD:
- * look at deferring rx frames rather than discarding (as per tulip)
- * handle tx ring full as per tulip
- * performance test to tune rx_copybreak
-
- Most of my modifications relate to the braindead big-endian
- implementation by Intel. When the i596 is operating in
- 'big-endian' mode, it thinks a 32 bit value of 0x12345678
- should be stored as 0x56781234. This is a real pain, when
- you have linked lists which are shared by the 680x0 and the
- i596.
-
- Driver skeleton
- Written 1993 by Donald Becker.
- Copyright 1993 United States Government as represented by the Director,
- National Security Agency. This software may only be used and distributed
- according to the terms of the GNU General Public License as modified by SRC,
- incorporated herein by reference.
-
- The author may be reached as becker@scyld.com, or C/O
- Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
-
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/gfp.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/pgtable.h>
-#include <asm/cacheflush.h>
-
-static char version[] __initdata =
- "82596.c $Revision: 1.5 $\n";
-
-#define DRV_NAME "82596"
-
-/* DEBUG flags
- */
-
-#define DEB_INIT 0x0001
-#define DEB_PROBE 0x0002
-#define DEB_SERIOUS 0x0004
-#define DEB_ERRORS 0x0008
-#define DEB_MULTI 0x0010
-#define DEB_TDR 0x0020
-#define DEB_OPEN 0x0040
-#define DEB_RESET 0x0080
-#define DEB_ADDCMD 0x0100
-#define DEB_STATUS 0x0200
-#define DEB_STARTTX 0x0400
-#define DEB_RXADDR 0x0800
-#define DEB_TXADDR 0x1000
-#define DEB_RXFRAME 0x2000
-#define DEB_INTS 0x4000
-#define DEB_STRUCT 0x8000
-#define DEB_ANY 0xffff
-
-
-#define DEB(x,y) if (i596_debug & (x)) y
-
-
-#if defined(CONFIG_MVME16x_NET) || defined(CONFIG_MVME16x_NET_MODULE)
-#define ENABLE_MVME16x_NET
-#endif
-#if defined(CONFIG_BVME6000_NET) || defined(CONFIG_BVME6000_NET_MODULE)
-#define ENABLE_BVME6000_NET
-#endif
-#if defined(CONFIG_APRICOT) || defined(CONFIG_APRICOT_MODULE)
-#define ENABLE_APRICOT
-#endif
-
-#ifdef ENABLE_MVME16x_NET
-#include <asm/mvme16xhw.h>
-#endif
-#ifdef ENABLE_BVME6000_NET
-#include <asm/bvme6000hw.h>
-#endif
-
-/*
- * Define various macros for Channel Attention, word swapping etc., dependent
- * on architecture. MVME and BVME are 680x0 based, otherwise it is Intel.
- */
-
-#ifdef __mc68000__
-#define WSWAPrfd(x) ((struct i596_rfd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPrbd(x) ((struct i596_rbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPiscp(x) ((struct i596_iscp *)(((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPscb(x) ((struct i596_scb *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPcmd(x) ((struct i596_cmd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPtbd(x) ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define WSWAPchar(x) ((char *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
-#define ISCP_BUSY 0x00010000
-#define MACH_IS_APRICOT 0
-#else
-#define WSWAPrfd(x) ((struct i596_rfd *)((long)x))
-#define WSWAPrbd(x) ((struct i596_rbd *)((long)x))
-#define WSWAPiscp(x) ((struct i596_iscp *)((long)x))
-#define WSWAPscb(x) ((struct i596_scb *)((long)x))
-#define WSWAPcmd(x) ((struct i596_cmd *)((long)x))
-#define WSWAPtbd(x) ((struct i596_tbd *)((long)x))
-#define WSWAPchar(x) ((char *)((long)x))
-#define ISCP_BUSY 0x0001
-#define MACH_IS_APRICOT 1
-#endif
-
-/*
- * The MPU_PORT command allows direct access to the 82596. With PORT access
- * the following commands are available (p5-18). The 32-bit port command
- * must be word-swapped with the most significant word written first.
- * This only applies to VME boards.
- */
-#define PORT_RESET 0x00 /* reset 82596 */
-#define PORT_SELFTEST 0x01 /* selftest */
-#define PORT_ALTSCP 0x02 /* alternate SCB address */
-#define PORT_ALTDUMP 0x03 /* Alternate DUMP address */
-
-static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
-
-MODULE_AUTHOR("Richard Hirst");
-MODULE_DESCRIPTION("i82596 driver");
-MODULE_LICENSE("GPL");
-
-module_param(i596_debug, int, 0);
-MODULE_PARM_DESC(i596_debug, "i82596 debug mask");
-
-
-/* Copy frames shorter than rx_copybreak, otherwise pass on up in
- * a full sized sk_buff. Value of 100 stolen from tulip.c (!alpha).
- */
-static int rx_copybreak = 100;
-
-#define PKT_BUF_SZ 1536
-#define MAX_MC_CNT 64
-
-#define I596_TOTAL_SIZE 17
-
-#define I596_NULL ((void *)0xffffffff)
-
-#define CMD_EOL 0x8000 /* The last command of the list, stop. */
-#define CMD_SUSP 0x4000 /* Suspend after doing cmd. */
-#define CMD_INTR 0x2000 /* Interrupt after doing cmd. */
-
-#define CMD_FLEX 0x0008 /* Enable flexible memory model */
-
-enum commands {
- CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
- CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
-};
-
-#define STAT_C 0x8000 /* Set to 0 after execution */
-#define STAT_B 0x4000 /* Command being executed */
-#define STAT_OK 0x2000 /* Command executed ok */
-#define STAT_A 0x1000 /* Command aborted */
-
-#define CUC_START 0x0100
-#define CUC_RESUME 0x0200
-#define CUC_SUSPEND 0x0300
-#define CUC_ABORT 0x0400
-#define RX_START 0x0010
-#define RX_RESUME 0x0020
-#define RX_SUSPEND 0x0030
-#define RX_ABORT 0x0040
-
-#define TX_TIMEOUT (HZ/20)
-
-
-struct i596_reg {
- unsigned short porthi;
- unsigned short portlo;
- unsigned long ca;
-};
-
-#define EOF 0x8000
-#define SIZE_MASK 0x3fff
-
-struct i596_tbd {
- unsigned short size;
- unsigned short pad;
- struct i596_tbd *next;
- char *data;
-};
-
-/* The command structure has two 'next' pointers; v_next is the address of
- * the next command as seen by the CPU, b_next is the address of the next
- * command as seen by the 82596. The b_next pointer, as used by the 82596
- * always references the status field of the next command, rather than the
- * v_next field, because the 82596 is unaware of v_next. It may seem more
- * logical to put v_next at the end of the structure, but we cannot do that
- * because the 82596 expects other fields to be there, depending on command
- * type.
- */
-
-struct i596_cmd {
- struct i596_cmd *v_next; /* Address from CPUs viewpoint */
- unsigned short status;
- unsigned short command;
- struct i596_cmd *b_next; /* Address from i596 viewpoint */
-};
-
-struct tx_cmd {
- struct i596_cmd cmd;
- struct i596_tbd *tbd;
- unsigned short size;
- unsigned short pad;
- struct sk_buff *skb; /* So we can free it after tx */
-};
-
-struct tdr_cmd {
- struct i596_cmd cmd;
- unsigned short status;
- unsigned short pad;
-};
-
-struct mc_cmd {
- struct i596_cmd cmd;
- short mc_cnt;
- char mc_addrs[MAX_MC_CNT*6];
-};
-
-struct sa_cmd {
- struct i596_cmd cmd;
- char eth_addr[8];
-};
-
-struct cf_cmd {
- struct i596_cmd cmd;
- char i596_config[16];
-};
-
-struct i596_rfd {
- unsigned short stat;
- unsigned short cmd;
- struct i596_rfd *b_next; /* Address from i596 viewpoint */
- struct i596_rbd *rbd;
- unsigned short count;
- unsigned short size;
- struct i596_rfd *v_next; /* Address from CPUs viewpoint */
- struct i596_rfd *v_prev;
-};
-
-struct i596_rbd {
- unsigned short count;
- unsigned short zero1;
- struct i596_rbd *b_next;
- unsigned char *b_data; /* Address from i596 viewpoint */
- unsigned short size;
- unsigned short zero2;
- struct sk_buff *skb;
- struct i596_rbd *v_next;
- struct i596_rbd *b_addr; /* This rbd addr from i596 view */
- unsigned char *v_data; /* Address from CPUs viewpoint */
-};
-
-#define TX_RING_SIZE 64
-#define RX_RING_SIZE 16
-
-struct i596_scb {
- unsigned short status;
- unsigned short command;
- struct i596_cmd *cmd;
- struct i596_rfd *rfd;
- unsigned long crc_err;
- unsigned long align_err;
- unsigned long resource_err;
- unsigned long over_err;
- unsigned long rcvdt_err;
- unsigned long short_err;
- unsigned short t_on;
- unsigned short t_off;
-};
-
-struct i596_iscp {
- unsigned long stat;
- struct i596_scb *scb;
-};
-
-struct i596_scp {
- unsigned long sysbus;
- unsigned long pad;
- struct i596_iscp *iscp;
-};
-
-struct i596_private {
- volatile struct i596_scp scp;
- volatile struct i596_iscp iscp;
- volatile struct i596_scb scb;
- struct sa_cmd sa_cmd;
- struct cf_cmd cf_cmd;
- struct tdr_cmd tdr_cmd;
- struct mc_cmd mc_cmd;
- unsigned long stat;
- int last_restart __attribute__((aligned(4)));
- struct i596_rfd *rfd_head;
- struct i596_rbd *rbd_head;
- struct i596_cmd *cmd_tail;
- struct i596_cmd *cmd_head;
- int cmd_backlog;
- unsigned long last_cmd;
- struct i596_rfd rfds[RX_RING_SIZE];
- struct i596_rbd rbds[RX_RING_SIZE];
- struct tx_cmd tx_cmds[TX_RING_SIZE];
- struct i596_tbd tbds[TX_RING_SIZE];
- int next_tx_cmd;
- spinlock_t lock;
-};
-
-static char init_setup[] =
-{
- 0x8E, /* length, prefetch on */
- 0xC8, /* fifo to 8, monitor off */
-#ifdef CONFIG_VME
- 0xc0, /* don't save bad frames */
-#else
- 0x80, /* don't save bad frames */
-#endif
- 0x2E, /* No source address insertion, 8 byte preamble */
- 0x00, /* priority and backoff defaults */
- 0x60, /* interframe spacing */
- 0x00, /* slot time LSB */
- 0xf2, /* slot time and retries */
- 0x00, /* promiscuous mode */
- 0x00, /* collision detect */
- 0x40, /* minimum frame length */
- 0xff,
- 0x00,
- 0x7f /* *multi IA */ };
-
-static int i596_open(struct net_device *dev);
-static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t i596_interrupt(int irq, void *dev_id);
-static int i596_close(struct net_device *dev);
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
-static void i596_tx_timeout (struct net_device *dev);
-static void print_eth(unsigned char *buf, char *str);
-static void set_multicast_list(struct net_device *dev);
-
-static int rx_ring_size = RX_RING_SIZE;
-static int ticks_limit = 25;
-static int max_cmd_backlog = TX_RING_SIZE-1;
-
-
-static inline void CA(struct net_device *dev)
-{
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- ((struct i596_reg *) dev->base_addr)->ca = 1;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile u32 i;
-
- i = *(volatile u32 *) (dev->base_addr);
- }
-#endif
-#ifdef ENABLE_APRICOT
- if (MACH_IS_APRICOT) {
- outw(0, (short) (dev->base_addr) + 4);
- }
-#endif
-}
-
-
-static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
-{
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
- p->porthi = ((c) | (u32) (x)) & 0xffff;
- p->portlo = ((c) | (u32) (x)) >> 16;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- u32 v = (u32) (c) | (u32) (x);
- v = ((u32) (v) << 16) | ((u32) (v) >> 16);
- *(volatile u32 *) dev->base_addr = v;
- udelay(1);
- *(volatile u32 *) dev->base_addr = v;
- }
-#endif
-}
-
-
-static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
- while (--delcnt && lp->iscp.stat)
- udelay(10);
- if (!delcnt) {
- printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
- dev->name, str, lp->scb.status, lp->scb.command);
- return -1;
- }
- else
- return 0;
-}
-
-
-static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
- while (--delcnt && lp->scb.command)
- udelay(10);
- if (!delcnt) {
- printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
- dev->name, str, lp->scb.status, lp->scb.command);
- return -1;
- }
- else
- return 0;
-}
-
-
-static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str)
-{
- volatile struct i596_cmd *c = cmd;
-
- while (--delcnt && c->command)
- udelay(10);
- if (!delcnt) {
- printk(KERN_ERR "%s: %s.\n", dev->name, str);
- return -1;
- }
- else
- return 0;
-}
-
-
-static void i596_display_data(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- struct i596_cmd *cmd;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
-
- printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n",
- &lp->scp, lp->scp.sysbus, lp->scp.iscp);
- printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n",
- &lp->iscp, lp->iscp.stat, lp->iscp.scb);
- printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x,"
- " .cmd = %p, .rfd = %p\n",
- &lp->scb, lp->scb.status, lp->scb.command,
- lp->scb.cmd, lp->scb.rfd);
- printk(KERN_ERR " errors: crc %lx, align %lx, resource %lx,"
- " over %lx, rcvdt %lx, short %lx\n",
- lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
- lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
- cmd = lp->cmd_head;
- while (cmd != I596_NULL) {
- printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n",
- cmd, cmd->status, cmd->command, cmd->b_next);
- cmd = cmd->v_next;
- }
- rfd = lp->rfd_head;
- printk(KERN_ERR "rfd_head = %p\n", rfd);
- do {
- printk(KERN_ERR " %p .stat %04x, .cmd %04x, b_next %p, rbd %p,"
- " count %04x\n",
- rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
- rfd->count);
- rfd = rfd->v_next;
- } while (rfd != lp->rfd_head);
- rbd = lp->rbd_head;
- printk(KERN_ERR "rbd_head = %p\n", rbd);
- do {
- printk(KERN_ERR " %p .count %04x, b_next %p, b_data %p, size %04x\n",
- rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
- rbd = rbd->v_next;
- } while (rbd != lp->rbd_head);
-}
-
-
-#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
-static irqreturn_t i596_error(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- pcc2[0x28] = 1;
- pcc2[0x2b] = 0x1d;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
-
- *ethirq = 1;
- *ethirq = 3;
- }
-#endif
- printk(KERN_ERR "%s: Error interrupt\n", dev->name);
- i596_display_data(dev);
- return IRQ_HANDLED;
-}
-#endif
-
-static inline void remove_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- struct i596_rbd *rbd;
- int i;
-
- for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
- if (rbd->skb == NULL)
- break;
- dev_kfree_skb(rbd->skb);
- rbd->skb = NULL;
- }
-}
-
-static inline int init_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- int i;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
-
- /* First build the Receive Buffer Descriptor List */
-
- for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
- struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
-
- if (skb == NULL) {
- remove_rx_bufs(dev);
- return -ENOMEM;
- }
-
- skb->dev = dev;
- rbd->v_next = rbd+1;
- rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1));
- rbd->b_addr = WSWAPrbd(virt_to_bus(rbd));
- rbd->skb = skb;
- rbd->v_data = skb->data;
- rbd->b_data = WSWAPchar(virt_to_bus(skb->data));
- rbd->size = PKT_BUF_SZ;
-#ifdef __mc68000__
- cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ);
-#endif
- }
- lp->rbd_head = lp->rbds;
- rbd = lp->rbds + rx_ring_size - 1;
- rbd->v_next = lp->rbds;
- rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds));
-
- /* Now build the Receive Frame Descriptor List */
-
- for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
- rfd->rbd = I596_NULL;
- rfd->v_next = rfd+1;
- rfd->v_prev = rfd-1;
- rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1));
- rfd->cmd = CMD_FLEX;
- }
- lp->rfd_head = lp->rfds;
- lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
- rfd = lp->rfds;
- rfd->rbd = lp->rbd_head;
- rfd->v_prev = lp->rfds + rx_ring_size - 1;
- rfd = lp->rfds + rx_ring_size - 1;
- rfd->v_next = lp->rfds;
- rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds));
- rfd->cmd = CMD_EOL|CMD_FLEX;
-
- return 0;
-}
-
-
-static void rebuild_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- int i;
-
- /* Ensure rx frame/buffer descriptors are tidy */
-
- for (i = 0; i < rx_ring_size; i++) {
- lp->rfds[i].rbd = I596_NULL;
- lp->rfds[i].cmd = CMD_FLEX;
- }
- lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
- lp->rfd_head = lp->rfds;
- lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
- lp->rbd_head = lp->rbds;
- lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds));
-}
-
-
-static int init_i596_mem(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
-#if !defined(ENABLE_MVME16x_NET) && !defined(ENABLE_BVME6000_NET) || defined(ENABLE_APRICOT)
- short ioaddr = dev->base_addr;
-#endif
- unsigned long flags;
-
- MPU_PORT(dev, PORT_RESET, NULL);
-
- udelay(100); /* Wait 100us - seems to help */
-
-#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- /* Disable all ints for now */
- pcc2[0x28] = 1;
- pcc2[0x2a] = 0x48;
- /* Following disables snooping. Snooping is not required
- * as we make appropriate use of non-cached pages for
- * shared data, and cache_push/cache_clear.
- */
- pcc2[0x2b] = 0x08;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
-
- *ethirq = 1;
- }
-#endif
-
- /* change the scp address */
-
- MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp));
-
-#elif defined(ENABLE_APRICOT)
-
- {
- u32 scp = virt_to_bus(&lp->scp);
-
- /* change the scp address */
- outw(0, ioaddr);
- outw(0, ioaddr);
- outb(4, ioaddr + 0xf);
- outw(scp | 2, ioaddr);
- outw(scp >> 16, ioaddr);
- }
-#endif
-
- lp->last_cmd = jiffies;
-
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x)
- lp->scp.sysbus = 0x00000054;
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000)
- lp->scp.sysbus = 0x0000004c;
-#endif
-#ifdef ENABLE_APRICOT
- if (MACH_IS_APRICOT)
- lp->scp.sysbus = 0x00440000;
-#endif
-
- lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp));
- lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb));
- lp->iscp.stat = ISCP_BUSY;
- lp->cmd_backlog = 0;
-
- lp->cmd_head = lp->scb.cmd = I596_NULL;
-
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- lp->scb.t_on = 7 * 25;
- lp->scb.t_off = 1 * 25;
- }
-#endif
-
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
-
-#if defined(ENABLE_APRICOT)
- (void) inb(ioaddr + 0x10);
- outb(4, ioaddr + 0xf);
-#endif
- CA(dev);
-
- if (wait_istat(dev,lp,1000,"initialization timed out"))
- goto failed;
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name));
-
- /* Ensure rx frame/buffer descriptors are tidy */
- rebuild_rx_bufs(dev);
- lp->scb.command = 0;
-
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- /* Enable ints, etc. now */
- pcc2[0x2a] = 0x55; /* Edge sensitive */
- pcc2[0x2b] = 0x15;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
-
- *ethirq = 3;
- }
-#endif
-
-
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name));
- memcpy(lp->cf_cmd.i596_config, init_setup, 14);
- lp->cf_cmd.cmd.command = CmdConfigure;
- i596_add_cmd(dev, &lp->cf_cmd.cmd);
-
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
- memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
- lp->sa_cmd.cmd.command = CmdSASetup;
- i596_add_cmd(dev, &lp->sa_cmd.cmd);
-
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
- lp->tdr_cmd.cmd.command = CmdTDR;
- i596_add_cmd(dev, &lp->tdr_cmd.cmd);
-
- spin_lock_irqsave (&lp->lock, flags);
-
- if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) {
- spin_unlock_irqrestore (&lp->lock, flags);
- goto failed;
- }
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
- lp->scb.command = RX_START;
- CA(dev);
-
- spin_unlock_irqrestore (&lp->lock, flags);
-
- if (wait_cmd(dev,lp,1000,"RX_START not processed"))
- goto failed;
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name));
- return 0;
-
-failed:
- printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name);
- MPU_PORT(dev, PORT_RESET, NULL);
- return -1;
-}
-
-static inline int i596_rx(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
- int frames = 0;
-
- DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n",
- lp->rfd_head, lp->rbd_head));
-
- rfd = lp->rfd_head; /* Ref next frame to check */
-
- while ((rfd->stat) & STAT_C) { /* Loop while complete frames */
- if (rfd->rbd == I596_NULL)
- rbd = I596_NULL;
- else if (rfd->rbd == lp->rbd_head->b_addr)
- rbd = lp->rbd_head;
- else {
- printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name);
- /* XXX Now what? */
- rbd = I596_NULL;
- }
- DEB(DEB_RXFRAME, printk(KERN_DEBUG " rfd %p, rfd.rbd %p, rfd.stat %04x\n",
- rfd, rfd->rbd, rfd->stat));
-
- if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) {
- /* a good frame */
- int pkt_len = rbd->count & 0x3fff;
- struct sk_buff *skb = rbd->skb;
- int rx_in_place = 0;
-
- DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
- frames++;
-
- /* Check if the packet is long enough to just accept
- * without copying to a properly sized skbuff.
- */
-
- if (pkt_len > rx_copybreak) {
- struct sk_buff *newskb;
-
- /* Get fresh skbuff to replace filled one. */
- newskb = dev_alloc_skb(PKT_BUF_SZ);
- if (newskb == NULL) {
- skb = NULL; /* drop pkt */
- goto memory_squeeze;
- }
- /* Pass up the skb already on the Rx ring. */
- skb_put(skb, pkt_len);
- rx_in_place = 1;
- rbd->skb = newskb;
- newskb->dev = dev;
- rbd->v_data = newskb->data;
- rbd->b_data = WSWAPchar(virt_to_bus(newskb->data));
-#ifdef __mc68000__
- cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ);
-#endif
- }
- else
- skb = dev_alloc_skb(pkt_len + 2);
-memory_squeeze:
- if (skb == NULL) {
- /* XXX tulip.c can defer packets here!! */
- printk(KERN_WARNING "%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
- dev->stats.rx_dropped++;
- }
- else {
- if (!rx_in_place) {
- /* 16 byte align the data fields */
- skb_reserve(skb, 2);
- memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
- }
- skb->protocol=eth_type_trans(skb,dev);
- skb->len = pkt_len;
-#ifdef __mc68000__
- cache_clear(virt_to_phys(rbd->skb->data),
- pkt_len);
-#endif
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes+=pkt_len;
- }
- }
- else {
- DEB(DEB_ERRORS, printk(KERN_DEBUG "%s: Error, rfd.stat = 0x%04x\n",
- dev->name, rfd->stat));
- dev->stats.rx_errors++;
- if ((rfd->stat) & 0x0001)
- dev->stats.collisions++;
- if ((rfd->stat) & 0x0080)
- dev->stats.rx_length_errors++;
- if ((rfd->stat) & 0x0100)
- dev->stats.rx_over_errors++;
- if ((rfd->stat) & 0x0200)
- dev->stats.rx_fifo_errors++;
- if ((rfd->stat) & 0x0400)
- dev->stats.rx_frame_errors++;
- if ((rfd->stat) & 0x0800)
- dev->stats.rx_crc_errors++;
- if ((rfd->stat) & 0x1000)
- dev->stats.rx_length_errors++;
- }
-
- /* Clear the buffer descriptor count and EOF + F flags */
-
- if (rbd != I596_NULL && (rbd->count & 0x4000)) {
- rbd->count = 0;
- lp->rbd_head = rbd->v_next;
- }
-
- /* Tidy the frame descriptor, marking it as end of list */
-
- rfd->rbd = I596_NULL;
- rfd->stat = 0;
- rfd->cmd = CMD_EOL|CMD_FLEX;
- rfd->count = 0;
-
- /* Remove end-of-list from old end descriptor */
-
- rfd->v_prev->cmd = CMD_FLEX;
-
- /* Update record of next frame descriptor to process */
-
- lp->scb.rfd = rfd->b_next;
- lp->rfd_head = rfd->v_next;
- rfd = lp->rfd_head;
- }
-
- DEB(DEB_RXFRAME,printk(KERN_DEBUG "frames %d\n", frames));
-
- return 0;
-}
-
-
-static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
-{
- struct i596_cmd *ptr;
-
- while (lp->cmd_head != I596_NULL) {
- ptr = lp->cmd_head;
- lp->cmd_head = ptr->v_next;
- lp->cmd_backlog--;
-
- switch ((ptr->command) & 0x7) {
- case CmdTx:
- {
- struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
- struct sk_buff *skb = tx_cmd->skb;
-
- dev_kfree_skb(skb);
-
- dev->stats.tx_errors++;
- dev->stats.tx_aborted_errors++;
-
- ptr->v_next = ptr->b_next = I596_NULL;
- tx_cmd->cmd.command = 0; /* Mark as free */
- break;
- }
- default:
- ptr->v_next = ptr->b_next = I596_NULL;
- }
- }
-
- wait_cmd(dev,lp,100,"i596_cleanup_cmd timed out");
- lp->scb.cmd = I596_NULL;
-}
-
-static void i596_reset(struct net_device *dev, struct i596_private *lp,
- int ioaddr)
-{
- unsigned long flags;
-
- DEB(DEB_RESET,printk(KERN_DEBUG "i596_reset\n"));
-
- spin_lock_irqsave (&lp->lock, flags);
-
- wait_cmd(dev,lp,100,"i596_reset timed out");
-
- netif_stop_queue(dev);
-
- lp->scb.command = CUC_ABORT | RX_ABORT;
- CA(dev);
-
- /* wait for shutdown */
- wait_cmd(dev,lp,1000,"i596_reset 2 timed out");
- spin_unlock_irqrestore (&lp->lock, flags);
-
- i596_cleanup_cmd(dev,lp);
- i596_rx(dev);
-
- netif_start_queue(dev);
- init_i596_mem(dev);
-}
-
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
-{
- struct i596_private *lp = dev->ml_priv;
- int ioaddr = dev->base_addr;
- unsigned long flags;
-
- DEB(DEB_ADDCMD,printk(KERN_DEBUG "i596_add_cmd\n"));
-
- cmd->status = 0;
- cmd->command |= (CMD_EOL | CMD_INTR);
- cmd->v_next = cmd->b_next = I596_NULL;
-
- spin_lock_irqsave (&lp->lock, flags);
-
- if (lp->cmd_head != I596_NULL) {
- lp->cmd_tail->v_next = cmd;
- lp->cmd_tail->b_next = WSWAPcmd(virt_to_bus(&cmd->status));
- } else {
- lp->cmd_head = cmd;
- wait_cmd(dev,lp,100,"i596_add_cmd timed out");
- lp->scb.cmd = WSWAPcmd(virt_to_bus(&cmd->status));
- lp->scb.command = CUC_START;
- CA(dev);
- }
- lp->cmd_tail = cmd;
- lp->cmd_backlog++;
-
- spin_unlock_irqrestore (&lp->lock, flags);
-
- if (lp->cmd_backlog > max_cmd_backlog) {
- unsigned long tickssofar = jiffies - lp->last_cmd;
-
- if (tickssofar < ticks_limit)
- return;
-
- printk(KERN_NOTICE "%s: command unit timed out, status resetting.\n", dev->name);
-
- i596_reset(dev, lp, ioaddr);
- }
-}
-
-static int i596_open(struct net_device *dev)
-{
- int res = 0;
-
- DEB(DEB_OPEN,printk(KERN_DEBUG "%s: i596_open() irq %d.\n", dev->name, dev->irq));
-
- if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) {
- printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
- return -EAGAIN;
- }
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- if (request_irq(0x56, i596_error, 0, "i82596_error", dev)) {
- res = -EAGAIN;
- goto err_irq_dev;
- }
- }
-#endif
- res = init_rx_bufs(dev);
- if (res)
- goto err_irq_56;
-
- netif_start_queue(dev);
-
- if (init_i596_mem(dev)) {
- res = -EAGAIN;
- goto err_queue;
- }
-
- return 0;
-
-err_queue:
- netif_stop_queue(dev);
- remove_rx_bufs(dev);
-err_irq_56:
-#ifdef ENABLE_MVME16x_NET
- free_irq(0x56, dev);
-err_irq_dev:
-#endif
- free_irq(dev->irq, dev);
-
- return res;
-}
-
-static void i596_tx_timeout (struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- int ioaddr = dev->base_addr;
-
- /* Transmitter timeout, serious problems. */
- DEB(DEB_ERRORS,printk(KERN_ERR "%s: transmit timed out, status resetting.\n",
- dev->name));
-
- dev->stats.tx_errors++;
-
- /* Try to restart the adaptor */
- if (lp->last_restart == dev->stats.tx_packets) {
- DEB(DEB_ERRORS,printk(KERN_ERR "Resetting board.\n"));
- /* Shutdown and restart */
- i596_reset (dev, lp, ioaddr);
- } else {
- /* Issue a channel attention signal */
- DEB(DEB_ERRORS,printk(KERN_ERR "Kicking board.\n"));
- lp->scb.command = CUC_START | RX_START;
- CA (dev);
- lp->last_restart = dev->stats.tx_packets;
- }
-
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue (dev);
-}
-
-static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- struct tx_cmd *tx_cmd;
- struct i596_tbd *tbd;
- short length = skb->len;
-
- DEB(DEB_STARTTX,printk(KERN_DEBUG "%s: i596_start_xmit(%x,%p) called\n",
- dev->name, skb->len, skb->data));
-
- if (skb->len < ETH_ZLEN) {
- if (skb_padto(skb, ETH_ZLEN))
- return NETDEV_TX_OK;
- length = ETH_ZLEN;
- }
- netif_stop_queue(dev);
-
- tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
- tbd = lp->tbds + lp->next_tx_cmd;
-
- if (tx_cmd->cmd.command) {
- printk(KERN_NOTICE "%s: xmit ring full, dropping packet.\n",
- dev->name);
- dev->stats.tx_dropped++;
-
- dev_kfree_skb(skb);
- } else {
- if (++lp->next_tx_cmd == TX_RING_SIZE)
- lp->next_tx_cmd = 0;
- tx_cmd->tbd = WSWAPtbd(virt_to_bus(tbd));
- tbd->next = I596_NULL;
-
- tx_cmd->cmd.command = CMD_FLEX | CmdTx;
- tx_cmd->skb = skb;
-
- tx_cmd->pad = 0;
- tx_cmd->size = 0;
- tbd->pad = 0;
- tbd->size = EOF | length;
-
- tbd->data = WSWAPchar(virt_to_bus(skb->data));
-
-#ifdef __mc68000__
- cache_push(virt_to_phys(skb->data), length);
-#endif
- DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
- i596_add_cmd(dev, &tx_cmd->cmd);
-
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += length;
- }
-
- netif_start_queue(dev);
-
- return NETDEV_TX_OK;
-}
-
-static void print_eth(unsigned char *add, char *str)
-{
- printk(KERN_DEBUG "i596 0x%p, %pM --> %pM %02X%02X, %s\n",
- add, add + 6, add, add[12], add[13], str);
-}
-
-static int io = 0x300;
-static int irq = 10;
-
-static const struct net_device_ops i596_netdev_ops = {
- .ndo_open = i596_open,
- .ndo_stop = i596_close,
- .ndo_start_xmit = i596_start_xmit,
- .ndo_set_multicast_list = set_multicast_list,
- .ndo_tx_timeout = i596_tx_timeout,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-struct net_device * __init i82596_probe(int unit)
-{
- struct net_device *dev;
- int i;
- struct i596_private *lp;
- char eth_addr[8];
- static int probed;
- int err;
-
- if (probed)
- return ERR_PTR(-ENODEV);
- probed++;
-
- dev = alloc_etherdev(0);
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- if (unit >= 0) {
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
- } else {
- dev->base_addr = io;
- dev->irq = irq;
- }
-
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- if (mvme16x_config & MVME16x_CONFIG_NO_ETHERNET) {
- printk(KERN_NOTICE "Ethernet probe disabled - chip not present\n");
- err = -ENODEV;
- goto out;
- }
- memcpy(eth_addr, (void *) 0xfffc1f2c, 6); /* YUCK! Get addr from NOVRAM */
- dev->base_addr = MVME_I596_BASE;
- dev->irq = (unsigned) MVME16x_IRQ_I596;
- goto found;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *rtc = (unsigned char *) BVME_RTC_BASE;
- unsigned char msr = rtc[3];
- int i;
-
- rtc[3] |= 0x80;
- for (i = 0; i < 6; i++)
- eth_addr[i] = rtc[i * 4 + 7]; /* Stored in RTC RAM at offset 1 */
- rtc[3] = msr;
- dev->base_addr = BVME_I596_BASE;
- dev->irq = (unsigned) BVME_IRQ_I596;
- goto found;
- }
-#endif
-#ifdef ENABLE_APRICOT
- {
- int checksum = 0;
- int ioaddr = 0x300;
-
- /* this is easy the ethernet interface can only be at 0x300 */
- /* first check nothing is already registered here */
-
- if (!request_region(ioaddr, I596_TOTAL_SIZE, DRV_NAME)) {
- printk(KERN_ERR "82596: IO address 0x%04x in use\n", ioaddr);
- err = -EBUSY;
- goto out;
- }
-
- dev->base_addr = ioaddr;
-
- for (i = 0; i < 8; i++) {
- eth_addr[i] = inb(ioaddr + 8 + i);
- checksum += eth_addr[i];
- }
-
- /* checksum is a multiple of 0x100, got this wrong first time
- some machines have 0x100, some 0x200. The DOS driver doesn't
- even bother with the checksum.
- Some other boards trip the checksum.. but then appear as
- ether address 0. Trap these - AC */
-
- if ((checksum % 0x100) ||
- (memcmp(eth_addr, "\x00\x00\x49", 3) != 0)) {
- err = -ENODEV;
- goto out1;
- }
-
- dev->irq = 10;
- goto found;
- }
-#endif
- err = -ENODEV;
- goto out;
-
-found:
- dev->mem_start = (int)__get_free_pages(GFP_ATOMIC, 0);
- if (!dev->mem_start) {
- err = -ENOMEM;
- goto out1;
- }
-
- DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
-
- for (i = 0; i < 6; i++)
- DEB(DEB_PROBE,printk(" %2.2X", dev->dev_addr[i] = eth_addr[i]));
-
- DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq));
-
- DEB(DEB_PROBE,printk(KERN_INFO "%s", version));
-
- /* The 82596-specific entries in the device structure. */
- dev->netdev_ops = &i596_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- dev->ml_priv = (void *)(dev->mem_start);
-
- lp = dev->ml_priv;
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: lp at 0x%08lx (%zd bytes), "
- "lp->scb at 0x%08lx\n",
- dev->name, (unsigned long)lp,
- sizeof(struct i596_private), (unsigned long)&lp->scb));
- memset((void *) lp, 0, sizeof(struct i596_private));
-
-#ifdef __mc68000__
- cache_push(virt_to_phys((void *)(dev->mem_start)), 4096);
- cache_clear(virt_to_phys((void *)(dev->mem_start)), 4096);
- kernel_set_cachemode((void *)(dev->mem_start), 4096, IOMAP_NOCACHE_SER);
-#endif
- lp->scb.command = 0;
- lp->scb.cmd = I596_NULL;
- lp->scb.rfd = I596_NULL;
- spin_lock_init(&lp->lock);
-
- err = register_netdev(dev);
- if (err)
- goto out2;
- return dev;
-out2:
-#ifdef __mc68000__
- /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
- * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
- */
- kernel_set_cachemode((void *)(dev->mem_start), 4096,
- IOMAP_FULL_CACHING);
-#endif
- free_page ((u32)(dev->mem_start));
-out1:
-#ifdef ENABLE_APRICOT
- release_region(dev->base_addr, I596_TOTAL_SIZE);
-#endif
-out:
- free_netdev(dev);
- return ERR_PTR(err);
-}
-
-static irqreturn_t i596_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct i596_private *lp;
- short ioaddr;
- unsigned short status, ack_cmd = 0;
- int handled = 0;
-
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- if (*(char *) BVME_LOCAL_IRQ_STAT & BVME_ETHERR) {
- i596_error(irq, dev_id);
- return IRQ_HANDLED;
- }
- }
-#endif
- if (dev == NULL) {
- printk(KERN_ERR "i596_interrupt(): irq %d for unknown device.\n", irq);
- return IRQ_NONE;
- }
-
- ioaddr = dev->base_addr;
- lp = dev->ml_priv;
-
- spin_lock (&lp->lock);
-
- wait_cmd(dev,lp,100,"i596 interrupt, timeout");
- status = lp->scb.status;
-
- DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
- dev->name, irq, status));
-
- ack_cmd = status & 0xf000;
-
- if ((status & 0x8000) || (status & 0x2000)) {
- struct i596_cmd *ptr;
-
- handled = 1;
- if ((status & 0x8000))
- DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt completed command.\n", dev->name));
- if ((status & 0x2000))
- DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
-
- while ((lp->cmd_head != I596_NULL) && (lp->cmd_head->status & STAT_C)) {
- ptr = lp->cmd_head;
-
- DEB(DEB_STATUS,printk(KERN_DEBUG "cmd_head->status = %04x, ->command = %04x\n",
- lp->cmd_head->status, lp->cmd_head->command));
- lp->cmd_head = ptr->v_next;
- lp->cmd_backlog--;
-
- switch ((ptr->command) & 0x7) {
- case CmdTx:
- {
- struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
- struct sk_buff *skb = tx_cmd->skb;
-
- if ((ptr->status) & STAT_OK) {
- DEB(DEB_TXADDR,print_eth(skb->data, "tx-done"));
- } else {
- dev->stats.tx_errors++;
- if ((ptr->status) & 0x0020)
- dev->stats.collisions++;
- if (!((ptr->status) & 0x0040))
- dev->stats.tx_heartbeat_errors++;
- if ((ptr->status) & 0x0400)
- dev->stats.tx_carrier_errors++;
- if ((ptr->status) & 0x0800)
- dev->stats.collisions++;
- if ((ptr->status) & 0x1000)
- dev->stats.tx_aborted_errors++;
- }
-
- dev_kfree_skb_irq(skb);
-
- tx_cmd->cmd.command = 0; /* Mark free */
- break;
- }
- case CmdTDR:
- {
- unsigned short status = ((struct tdr_cmd *)ptr)->status;
-
- if (status & 0x8000) {
- DEB(DEB_TDR,printk(KERN_INFO "%s: link ok.\n", dev->name));
- } else {
- if (status & 0x4000)
- printk(KERN_ERR "%s: Transceiver problem.\n", dev->name);
- if (status & 0x2000)
- printk(KERN_ERR "%s: Termination problem.\n", dev->name);
- if (status & 0x1000)
- printk(KERN_ERR "%s: Short circuit.\n", dev->name);
-
- DEB(DEB_TDR,printk(KERN_INFO "%s: Time %d.\n", dev->name, status & 0x07ff));
- }
- break;
- }
- case CmdConfigure:
- case CmdMulticastList:
- /* Zap command so set_multicast_list() knows it is free */
- ptr->command = 0;
- break;
- }
- ptr->v_next = ptr->b_next = I596_NULL;
- lp->last_cmd = jiffies;
- }
-
- ptr = lp->cmd_head;
- while ((ptr != I596_NULL) && (ptr != lp->cmd_tail)) {
- ptr->command &= 0x1fff;
- ptr = ptr->v_next;
- }
-
- if ((lp->cmd_head != I596_NULL))
- ack_cmd |= CUC_START;
- lp->scb.cmd = WSWAPcmd(virt_to_bus(&lp->cmd_head->status));
- }
- if ((status & 0x1000) || (status & 0x4000)) {
- if ((status & 0x4000))
- DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt received a frame.\n", dev->name));
- i596_rx(dev);
- /* Only RX_START if stopped - RGH 07-07-96 */
- if (status & 0x1000) {
- if (netif_running(dev)) {
- DEB(DEB_ERRORS,printk(KERN_ERR "%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
- ack_cmd |= RX_START;
- dev->stats.rx_errors++;
- dev->stats.rx_fifo_errors++;
- rebuild_rx_bufs(dev);
- }
- }
- }
- wait_cmd(dev,lp,100,"i596 interrupt, timeout");
- lp->scb.command = ack_cmd;
-
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- /* Ack the interrupt */
-
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- pcc2[0x2a] |= 0x08;
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
-
- *ethirq = 1;
- *ethirq = 3;
- }
-#endif
-#ifdef ENABLE_APRICOT
- (void) inb(ioaddr + 0x10);
- outb(4, ioaddr + 0xf);
-#endif
- CA(dev);
-
- DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name));
-
- spin_unlock (&lp->lock);
- return IRQ_RETVAL(handled);
-}
-
-static int i596_close(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- unsigned long flags;
-
- netif_stop_queue(dev);
-
- DEB(DEB_INIT,printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n",
- dev->name, lp->scb.status));
-
- spin_lock_irqsave(&lp->lock, flags);
-
- wait_cmd(dev,lp,100,"close1 timed out");
- lp->scb.command = CUC_ABORT | RX_ABORT;
- CA(dev);
-
- wait_cmd(dev,lp,100,"close2 timed out");
-
- spin_unlock_irqrestore(&lp->lock, flags);
- DEB(DEB_STRUCT,i596_display_data(dev));
- i596_cleanup_cmd(dev,lp);
-
-#ifdef ENABLE_MVME16x_NET
- if (MACH_IS_MVME16x) {
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- /* Disable all ints */
- pcc2[0x28] = 1;
- pcc2[0x2a] = 0x40;
- pcc2[0x2b] = 0x40; /* Set snooping bits now! */
- }
-#endif
-#ifdef ENABLE_BVME6000_NET
- if (MACH_IS_BVME6000) {
- volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
-
- *ethirq = 1;
- }
-#endif
-
-#ifdef ENABLE_MVME16x_NET
- free_irq(0x56, dev);
-#endif
- free_irq(dev->irq, dev);
- remove_rx_bufs(dev);
-
- return 0;
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- */
-
-static void set_multicast_list(struct net_device *dev)
-{
- struct i596_private *lp = dev->ml_priv;
- int config = 0, cnt;
-
- DEB(DEB_MULTI,printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
- dev->name, netdev_mc_count(dev),
- dev->flags & IFF_PROMISC ? "ON" : "OFF",
- dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
-
- if (wait_cfg(dev, &lp->cf_cmd.cmd, 1000, "config change request timed out"))
- return;
-
- if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
- lp->cf_cmd.i596_config[8] |= 0x01;
- config = 1;
- }
- if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
- lp->cf_cmd.i596_config[8] &= ~0x01;
- config = 1;
- }
- if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
- lp->cf_cmd.i596_config[11] &= ~0x20;
- config = 1;
- }
- if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
- lp->cf_cmd.i596_config[11] |= 0x20;
- config = 1;
- }
- if (config) {
- lp->cf_cmd.cmd.command = CmdConfigure;
- i596_add_cmd(dev, &lp->cf_cmd.cmd);
- }
-
- cnt = netdev_mc_count(dev);
- if (cnt > MAX_MC_CNT)
- {
- cnt = MAX_MC_CNT;
- printk(KERN_ERR "%s: Only %d multicast addresses supported",
- dev->name, cnt);
- }
-
- if (!netdev_mc_empty(dev)) {
- struct netdev_hw_addr *ha;
- unsigned char *cp;
- struct mc_cmd *cmd;
-
- if (wait_cfg(dev, &lp->mc_cmd.cmd, 1000, "multicast list change request timed out"))
- return;
- cmd = &lp->mc_cmd;
- cmd->cmd.command = CmdMulticastList;
- cmd->mc_cnt = cnt * ETH_ALEN;
- cp = cmd->mc_addrs;
- netdev_for_each_mc_addr(ha, dev) {
- if (!cnt--)
- break;
- memcpy(cp, ha->addr, ETH_ALEN);
- if (i596_debug > 1)
- DEB(DEB_MULTI,printk(KERN_INFO "%s: Adding address %pM\n",
- dev->name, cp));
- cp += ETH_ALEN;
- }
- i596_add_cmd(dev, &cmd->cmd);
- }
-}
-
-#ifdef MODULE
-static struct net_device *dev_82596;
-
-#ifdef ENABLE_APRICOT
-module_param(irq, int, 0);
-MODULE_PARM_DESC(irq, "Apricot IRQ number");
-#endif
-
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "i82596 debug mask");
-
-int __init init_module(void)
-{
- if (debug >= 0)
- i596_debug = debug;
- dev_82596 = i82596_probe(-1);
- if (IS_ERR(dev_82596))
- return PTR_ERR(dev_82596);
- return 0;
-}
-
-void __exit cleanup_module(void)
-{
- unregister_netdev(dev_82596);
-#ifdef __mc68000__
- /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
- * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
- */
-
- kernel_set_cachemode((void *)(dev_82596->mem_start), 4096,
- IOMAP_FULL_CACHING);
-#endif
- free_page ((u32)(dev_82596->mem_start));
-#ifdef ENABLE_APRICOT
- /* If we don't do this, we can't re-insmod it later. */
- release_region(dev_82596->base_addr, I596_TOTAL_SIZE);
-#endif
- free_netdev(dev_82596);
-}
-
-#endif /* MODULE */