diff options
Diffstat (limited to 'drivers/net/82596.c')
| -rw-r--r-- | drivers/net/82596.c | 1632 |
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 */ |