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Annotation of Gnu-Mach/linux/src/drivers/net/smc-ultra.c, revision 1.1

1.1     ! root        1: /* smc-ultra.c: A SMC Ultra ethernet driver for linux. */
        !             2: /*
        !             3:        This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards.
        !             4: 
        !             5:        Written 1993-1998 by Donald Becker.
        !             6: 
        !             7:        Copyright 1993 United States Government as represented by the
        !             8:        Director, National Security Agency.
        !             9: 
        !            10:        This software may be used and distributed according to the terms
        !            11:        of the GNU Public License, incorporated herein by reference.
        !            12: 
        !            13:        The author may be reached as [email protected], or C/O
        !            14:        Center of Excellence in Space Data and Information Sciences
        !            15:                Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
        !            16: 
        !            17:        This driver uses the cards in the 8390-compatible mode.
        !            18:        Most of the run-time complexity is handled by the generic code in
        !            19:        8390.c.  The code in this file is responsible for
        !            20: 
        !            21:                ultra_probe()           Detecting and initializing the card.
        !            22:                ultra_probe1()  
        !            23: 
        !            24:                ultra_open()            The card-specific details of starting, stopping
        !            25:                ultra_reset_8390()      and resetting the 8390 NIC core.
        !            26:                ultra_close()
        !            27: 
        !            28:                ultra_block_input()             Routines for reading and writing blocks of
        !            29:                ultra_block_output()    packet buffer memory.
        !            30:                ultra_pio_input()
        !            31:                ultra_pio_output()
        !            32: 
        !            33:        This driver enables the shared memory only when doing the actual data
        !            34:        transfers to avoid a bug in early version of the card that corrupted
        !            35:        data transferred by a AHA1542.
        !            36: 
        !            37:        This driver now supports the programmed-I/O (PIO) data transfer mode of
        !            38:        the EtherEZ. It does not use the non-8390-compatible "Altego" mode.
        !            39:        That support (if available) is in smc-ez.c.
        !            40: 
        !            41:        Changelog:
        !            42: 
        !            43:        Paul Gortmaker  : multiple card support for module users.
        !            44:        Donald Becker   : 4/17/96 PIO support, minor potential problems avoided.
        !            45:        Donald Becker   : 6/6/96 correctly set auto-wrap bit.
        !            46: */
        !            47: 
        !            48: static const char *version =
        !            49:        "smc-ultra.c:v2.02 2/3/98 Donald Becker ([email protected])\n";
        !            50: 
        !            51: #include <linux/module.h>
        !            52: 
        !            53: #include <linux/kernel.h>
        !            54: #include <linux/sched.h>
        !            55: #include <linux/errno.h>
        !            56: #include <linux/string.h>
        !            57: #include <asm/io.h>
        !            58: #include <asm/system.h>
        !            59: 
        !            60: #include <linux/netdevice.h>
        !            61: #include <linux/etherdevice.h>
        !            62: #include "8390.h"
        !            63: 
        !            64: /* A zero-terminated list of I/O addresses to be probed. */
        !            65: static unsigned int ultra_portlist[] =
        !            66: {0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
        !            67: 
        !            68: int ultra_probe(struct device *dev);
        !            69: int ultra_probe1(struct device *dev, int ioaddr);
        !            70: 
        !            71: static int ultra_open(struct device *dev);
        !            72: static void ultra_reset_8390(struct device *dev);
        !            73: static void ultra_get_8390_hdr(struct device *dev, struct e8390_pkt_hdr *hdr,
        !            74:                                                int ring_page);
        !            75: static void ultra_block_input(struct device *dev, int count,
        !            76:                                                  struct sk_buff *skb, int ring_offset);
        !            77: static void ultra_block_output(struct device *dev, int count,
        !            78:                                                        const unsigned char *buf, const int start_page);
        !            79: static void ultra_pio_get_hdr(struct device *dev, struct e8390_pkt_hdr *hdr,
        !            80:                                                int ring_page);
        !            81: static void ultra_pio_input(struct device *dev, int count,
        !            82:                                                  struct sk_buff *skb, int ring_offset);
        !            83: static void ultra_pio_output(struct device *dev, int count,
        !            84:                                                         const unsigned char *buf, const int start_page);
        !            85: static int ultra_close_card(struct device *dev);
        !            86: 
        !            87: 
        !            88: #define START_PG               0x00    /* First page of TX buffer */
        !            89: 
        !            90: #define ULTRA_CMDREG   0               /* Offset to ASIC command register. */
        !            91: #define         ULTRA_RESET    0x80    /* Board reset, in ULTRA_CMDREG. */
        !            92: #define         ULTRA_MEMENB   0x40    /* Enable the shared memory. */
        !            93: #define IOPD   0x02                    /* I/O Pipe Data (16 bits), PIO operation. */
        !            94: #define IOPA   0x07                    /* I/O Pipe Address for PIO operation. */
        !            95: #define ULTRA_NIC_OFFSET  16   /* NIC register offset from the base_addr. */
        !            96: #define ULTRA_IO_EXTENT 32
        !            97: #define EN0_ERWCNT             0x08    /* Early receive warning count. */
        !            98: 
        !            99: /*     Probe for the Ultra.  This looks like a 8013 with the station
        !           100:        address PROM at I/O ports <base>+8 to <base>+13, with a checksum
        !           101:        following.
        !           102: */
        !           103: #ifdef HAVE_DEVLIST
        !           104: struct netdev_entry ultra_drv =
        !           105: {"ultra", ultra_probe1, NETCARD_IO_EXTENT, netcard_portlist};
        !           106: #else
        !           107: 
        !           108: int ultra_probe(struct device *dev)
        !           109: {
        !           110:        int i;
        !           111:        int base_addr = dev ? dev->base_addr : 0;
        !           112: 
        !           113:        if (base_addr > 0x1ff)          /* Check a single specified location. */
        !           114:                return ultra_probe1(dev, base_addr);
        !           115:        else if (base_addr != 0)        /* Don't probe at all. */
        !           116:                return ENXIO;
        !           117: 
        !           118:        for (i = 0; ultra_portlist[i]; i++) {
        !           119:                int ioaddr = ultra_portlist[i];
        !           120:                if (check_region(ioaddr, ULTRA_IO_EXTENT))
        !           121:                        continue;
        !           122:                if (ultra_probe1(dev, ioaddr) == 0)
        !           123:                        return 0;
        !           124:        }
        !           125: 
        !           126:        return ENODEV;
        !           127: }
        !           128: #endif
        !           129: 
        !           130: int ultra_probe1(struct device *dev, int ioaddr)
        !           131: {
        !           132:        int i;
        !           133:        int checksum = 0;
        !           134:        const char *model_name;
        !           135:        unsigned char eeprom_irq = 0;
        !           136:        static unsigned version_printed = 0;
        !           137:        /* Values from various config regs. */
        !           138:        unsigned char num_pages, irqreg, addr, piomode;
        !           139:        unsigned char idreg = inb(ioaddr + 7);
        !           140:        unsigned char reg4 = inb(ioaddr + 4) & 0x7f;
        !           141: 
        !           142:        /* Check the ID nibble. */
        !           143:        if ((idreg & 0xF0) != 0x20                      /* SMC Ultra */
        !           144:                && (idreg & 0xF0) != 0x40)              /* SMC EtherEZ */
        !           145:                return ENODEV;
        !           146: 
        !           147:        /* Select the station address register set. */
        !           148:        outb(reg4, ioaddr + 4);
        !           149: 
        !           150:        for (i = 0; i < 8; i++)
        !           151:                checksum += inb(ioaddr + 8 + i);
        !           152:        if ((checksum & 0xff) != 0xFF)
        !           153:                return ENODEV;
        !           154: 
        !           155:        if (dev == NULL)
        !           156:                dev = init_etherdev(0, 0);
        !           157: 
        !           158:        if (ei_debug  &&  version_printed++ == 0)
        !           159:                printk(version);
        !           160: 
        !           161:        model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
        !           162: 
        !           163:        printk("%s: %s at %#3x,", dev->name, model_name, ioaddr);
        !           164: 
        !           165:        for (i = 0; i < 6; i++)
        !           166:                printk(" %2.2X", dev->dev_addr[i] = inb(ioaddr + 8 + i));
        !           167: 
        !           168:        /* Switch from the station address to the alternate register set and
        !           169:           read the useful registers there. */
        !           170:        outb(0x80 | reg4, ioaddr + 4);
        !           171: 
        !           172:        /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
        !           173:        outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
        !           174:        piomode = inb(ioaddr + 0x8);
        !           175:        addr = inb(ioaddr + 0xb);
        !           176:        irqreg = inb(ioaddr + 0xd);
        !           177: 
        !           178:        /* Switch back to the station address register set so that the MS-DOS driver
        !           179:           can find the card after a warm boot. */
        !           180:        outb(reg4, ioaddr + 4);
        !           181: 
        !           182:        if (dev->irq < 2) {
        !           183:                unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
        !           184:                int irq;
        !           185: 
        !           186:                /* The IRQ bits are split. */
        !           187:                irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
        !           188: 
        !           189:                if (irq == 0) {
        !           190:                        printk(", failed to detect IRQ line.\n");
        !           191:                        return -EAGAIN;
        !           192:                }
        !           193:                dev->irq = irq;
        !           194:                eeprom_irq = 1;
        !           195:        }
        !           196: 
        !           197:        /* Allocate dev->priv and fill in 8390 specific dev fields. */
        !           198:        if (ethdev_init(dev)) {
        !           199:                printk (", no memory for dev->priv.\n");
        !           200:                 return -ENOMEM;
        !           201:         }
        !           202: 
        !           203:        /* OK, we are certain this is going to work.  Setup the device. */
        !           204:        request_region(ioaddr, ULTRA_IO_EXTENT, model_name);
        !           205: 
        !           206:        /* The 8390 isn't at the base address, so fake the offset */
        !           207:        dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
        !           208: 
        !           209:        {
        !           210:                int addr_tbl[4] = {0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000};
        !           211:                short num_pages_tbl[4] = {0x20, 0x40, 0x80, 0xff};
        !           212: 
        !           213:                dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
        !           214:                num_pages = num_pages_tbl[(addr >> 4) & 3];
        !           215:        }
        !           216: 
        !           217:        ei_status.name = model_name;
        !           218:        ei_status.word16 = 1;
        !           219:        ei_status.tx_start_page = START_PG;
        !           220:        ei_status.rx_start_page = START_PG + TX_PAGES;
        !           221:        ei_status.stop_page = num_pages;
        !           222: 
        !           223:        dev->rmem_start = dev->mem_start + TX_PAGES*256;
        !           224:        dev->mem_end = dev->rmem_end
        !           225:                = dev->mem_start + (ei_status.stop_page - START_PG)*256;
        !           226: 
        !           227:        if (piomode) {
        !           228:                printk(",%s IRQ %d programmed-I/O mode.\n",
        !           229:                           eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
        !           230:                ei_status.block_input = &ultra_pio_input;
        !           231:                ei_status.block_output = &ultra_pio_output;
        !           232:                ei_status.get_8390_hdr = &ultra_pio_get_hdr;
        !           233:        } else {
        !           234:                printk(",%s IRQ %d memory %#lx-%#lx.\n", eeprom_irq ? "" : "assigned ",
        !           235:                           dev->irq, dev->mem_start, dev->mem_end-1);
        !           236:                ei_status.block_input = &ultra_block_input;
        !           237:                ei_status.block_output = &ultra_block_output;
        !           238:                ei_status.get_8390_hdr = &ultra_get_8390_hdr;
        !           239:        }
        !           240:        ei_status.reset_8390 = &ultra_reset_8390;
        !           241:        dev->open = &ultra_open;
        !           242:        dev->stop = &ultra_close_card;
        !           243:        NS8390_init(dev, 0);
        !           244: 
        !           245:        return 0;
        !           246: }
        !           247: 
        !           248: static int
        !           249: ultra_open(struct device *dev)
        !           250: {
        !           251:        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
        !           252:        unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
        !           253:                                                           0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
        !           254: 
        !           255:        if (request_irq(dev->irq, ei_interrupt, 0, ei_status.name, dev))
        !           256:                return -EAGAIN;
        !           257: 
        !           258:        outb(0x00, ioaddr);     /* Disable shared memory for safety. */
        !           259:        outb(0x80, ioaddr + 5);
        !           260:        /* Set the IRQ line. */
        !           261:        outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
        !           262:        outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
        !           263:        outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
        !           264: 
        !           265:        if (ei_status.block_input == &ultra_pio_input) {
        !           266:                outb(0x11, ioaddr + 6);         /* Enable interrupts and PIO. */
        !           267:                outb(0x01, ioaddr + 0x19);      /* Enable ring read auto-wrap. */
        !           268:        } else
        !           269:                outb(0x01, ioaddr + 6);         /* Enable interrupts and memory. */
        !           270:        /* Set the early receive warning level in window 0 high enough not
        !           271:           to receive ERW interrupts. */
        !           272:        outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
        !           273:        outb(0xff, dev->base_addr + EN0_ERWCNT);
        !           274:        ei_open(dev);
        !           275:        MOD_INC_USE_COUNT;
        !           276:        return 0;
        !           277: }
        !           278: 
        !           279: static void
        !           280: ultra_reset_8390(struct device *dev)
        !           281: {
        !           282:        int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
        !           283: 
        !           284:        outb(ULTRA_RESET, cmd_port);
        !           285:        if (ei_debug > 1) printk("resetting Ultra, t=%ld...", jiffies);
        !           286:        ei_status.txing = 0;
        !           287: 
        !           288:        outb(0x00, cmd_port);   /* Disable shared memory for safety. */
        !           289:        outb(0x80, cmd_port + 5);
        !           290:        if (ei_status.block_input == &ultra_pio_input)
        !           291:                outb(0x11, cmd_port + 6);               /* Enable interrupts and PIO. */
        !           292:        else
        !           293:                outb(0x01, cmd_port + 6);               /* Enable interrupts and memory. */
        !           294: 
        !           295:        if (ei_debug > 1) printk("reset done\n");
        !           296:        return;
        !           297: }
        !           298: 
        !           299: /* Grab the 8390 specific header. Similar to the block_input routine, but
        !           300:    we don't need to be concerned with ring wrap as the header will be at
        !           301:    the start of a page, so we optimize accordingly. */
        !           302: 
        !           303: static void
        !           304: ultra_get_8390_hdr(struct device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
        !           305: {
        !           306:        unsigned long hdr_start = dev->mem_start + ((ring_page - START_PG)<<8);
        !           307: 
        !           308:        outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);  /* shmem on */
        !           309: #ifdef notdef
        !           310:        /* Officially this is what we are doing, but the readl() is faster */
        !           311:        memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
        !           312: #else
        !           313:        ((unsigned int*)hdr)[0] = readl(hdr_start);
        !           314: #endif
        !           315:        outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
        !           316: }
        !           317: 
        !           318: /* Block input and output are easy on shared memory ethercards, the only
        !           319:    complication is when the ring buffer wraps. */
        !           320: 
        !           321: static void
        !           322: ultra_block_input(struct device *dev, int count, struct sk_buff *skb, int ring_offset)
        !           323: {
        !           324:        unsigned long xfer_start = dev->mem_start + ring_offset - (START_PG<<8);
        !           325: 
        !           326:        /* Enable shared memory. */
        !           327:        outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
        !           328: 
        !           329:        if (xfer_start + count > dev->rmem_end) {
        !           330:                /* We must wrap the input move. */
        !           331:                int semi_count = dev->rmem_end - xfer_start;
        !           332:                memcpy_fromio(skb->data, xfer_start, semi_count);
        !           333:                count -= semi_count;
        !           334:                memcpy_fromio(skb->data + semi_count, dev->rmem_start, count);
        !           335:        } else {
        !           336:                /* Packet is in one chunk -- we can copy + cksum. */
        !           337:                eth_io_copy_and_sum(skb, xfer_start, count, 0);
        !           338:        }
        !           339: 
        !           340:        outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET);  /* Disable memory. */
        !           341: }
        !           342: 
        !           343: static void
        !           344: ultra_block_output(struct device *dev, int count, const unsigned char *buf,
        !           345:                                int start_page)
        !           346: {
        !           347:        unsigned long shmem = dev->mem_start + ((start_page - START_PG)<<8);
        !           348: 
        !           349:        /* Enable shared memory. */
        !           350:        outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
        !           351: 
        !           352:        memcpy_toio(shmem, buf, count);
        !           353: 
        !           354:        outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
        !           355: }
        !           356: 
        !           357: /* The identical operations for programmed I/O cards.
        !           358:    The PIO model is trivial to use: the 16 bit start address is written
        !           359:    byte-sequentially to IOPA, with no intervening I/O operations, and the
        !           360:    data is read or written to the IOPD data port.
        !           361:    The only potential complication is that the address register is shared
        !           362:    and must be always be rewritten between each read/write direction change.
        !           363:    This is no problem for us, as the 8390 code ensures that we are single
        !           364:    threaded. */
        !           365: static void ultra_pio_get_hdr(struct device *dev, struct e8390_pkt_hdr *hdr,
        !           366:                                                int ring_page)
        !           367: {
        !           368:        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
        !           369:        outb(0x00, ioaddr + IOPA);      /* Set the address, LSB first. */
        !           370:        outb(ring_page, ioaddr + IOPA);
        !           371:        insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
        !           372: }
        !           373: 
        !           374: static void ultra_pio_input(struct device *dev, int count,
        !           375:                                                  struct sk_buff *skb, int ring_offset)
        !           376: {
        !           377:        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
        !           378:     char *buf = skb->data;
        !           379: 
        !           380:        /* For now set the address again, although it should already be correct. */
        !           381:        outb(ring_offset, ioaddr + IOPA);       /* Set the address, LSB first. */
        !           382:        outb(ring_offset >> 8, ioaddr + IOPA);
        !           383:        /* We know skbuffs are padded to at least word alignment. */
        !           384:        insw(ioaddr + IOPD, buf, (count+1)>>1);
        !           385: }
        !           386: 
        !           387: static void ultra_pio_output(struct device *dev, int count,
        !           388:                                                        const unsigned char *buf, const int start_page)
        !           389: {
        !           390:        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
        !           391:        outb(0x00, ioaddr + IOPA);      /* Set the address, LSB first. */
        !           392:        outb(start_page, ioaddr + IOPA);
        !           393:        /* An extra odd byte is OK here as well. */
        !           394:        outsw(ioaddr + IOPD, buf, (count+1)>>1);
        !           395: }
        !           396: 
        !           397: static int
        !           398: ultra_close_card(struct device *dev)
        !           399: {
        !           400:        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
        !           401: 
        !           402:        dev->start = 0;
        !           403:        dev->tbusy = 1;
        !           404: 
        !           405:        if (ei_debug > 1)
        !           406:                printk("%s: Shutting down ethercard.\n", dev->name);
        !           407: 
        !           408:        outb(0x00, ioaddr + 6);         /* Disable interrupts. */
        !           409:        free_irq(dev->irq, dev);
        !           410:        irq2dev_map[dev->irq] = 0;
        !           411: 
        !           412:        NS8390_init(dev, 0);
        !           413: 
        !           414:        /* We should someday disable shared memory and change to 8-bit mode
        !           415:           "just in case"... */
        !           416: 
        !           417:        MOD_DEC_USE_COUNT;
        !           418: 
        !           419:        return 0;
        !           420: }
        !           421: 
        !           422: 
        !           423: #ifdef MODULE
        !           424: #define MAX_ULTRA_CARDS        4       /* Max number of Ultra cards per module */
        !           425: #define NAMELEN                8       /* # of chars for storing dev->name */
        !           426: static char namelist[NAMELEN * MAX_ULTRA_CARDS] = { 0, };
        !           427: static struct device dev_ultra[MAX_ULTRA_CARDS] = {
        !           428:        {
        !           429:                NULL,           /* assign a chunk of namelist[] below */
        !           430:                0, 0, 0, 0,
        !           431:                0, 0,
        !           432:                0, 0, 0, NULL, NULL
        !           433:        },
        !           434: };
        !           435: 
        !           436: static int io[MAX_ULTRA_CARDS] = { 0, };
        !           437: static int irq[MAX_ULTRA_CARDS]  = { 0, };
        !           438: 
        !           439: /* This is set up so that only a single autoprobe takes place per call.
        !           440: ISA device autoprobes on a running machine are not recommended. */
        !           441: int
        !           442: init_module(void)
        !           443: {
        !           444:        int this_dev, found = 0;
        !           445: 
        !           446:        for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
        !           447:                struct device *dev = &dev_ultra[this_dev];
        !           448:                dev->name = namelist+(NAMELEN*this_dev);
        !           449:                dev->irq = irq[this_dev];
        !           450:                dev->base_addr = io[this_dev];
        !           451:                dev->init = ultra_probe;
        !           452:                if (io[this_dev] == 0)  {
        !           453:                        if (this_dev != 0) break; /* only autoprobe 1st one */
        !           454:                        printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
        !           455:                }
        !           456:                if (register_netdev(dev) != 0) {
        !           457:                        printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
        !           458:                        if (found != 0) return 0;       /* Got at least one. */
        !           459:                        return -ENXIO;
        !           460:                }
        !           461:                found++;
        !           462:        }
        !           463: 
        !           464:        return 0;
        !           465: }
        !           466: 
        !           467: void
        !           468: cleanup_module(void)
        !           469: {
        !           470:        int this_dev;
        !           471: 
        !           472:        for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
        !           473:                struct device *dev = &dev_ultra[this_dev];
        !           474:                if (dev->priv != NULL) {
        !           475:                        /* NB: ultra_close_card() does free_irq + irq2dev */
        !           476:                        int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET;
        !           477:                        kfree(dev->priv);
        !           478:                        dev->priv = NULL;
        !           479:                        release_region(ioaddr, ULTRA_IO_EXTENT);
        !           480:                        unregister_netdev(dev);
        !           481:                }
        !           482:        }
        !           483: }
        !           484: #endif /* MODULE */
        !           485: 
        !           486: 
        !           487: /*
        !           488:  * Local variables:
        !           489:  *  compile-command: "gcc -D__KERNEL__ -Wall -O6 -I/usr/src/linux/net/inet -c smc-ultra.c"
        !           490:  *  version-control: t
        !           491:  *  kept-new-versions: 5
        !           492:  *  c-indent-level: 4
        !           493:  *  c-basic-offset: 4
        !           494:  *  tab-width: 4
        !           495:  * End:
        !           496:  */

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