linux/drivers/net/sun3_82586.c
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   1/*
   2 * Sun3 i82586 Ethernet driver
   3 *
   4 * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net)
   5 *
   6 * Original copyright follows:
   7 * --------------------------
   8 *
   9 * net-3-driver for the NI5210 card (i82586 Ethernet chip)
  10 *
  11 * This is an extension to the Linux operating system, and is covered by the
  12 * same Gnu Public License that covers that work.
  13 *
  14 * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later)
  15 * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de)
  16 * --------------------------
  17 *
  18 * Consult ni52.c for further notes from the original driver.
  19 *
  20 * This incarnation currently supports the OBIO version of the i82586 chip
  21 * used in certain sun3 models.  It should be fairly doable to expand this
  22 * to support VME if I should every acquire such a board.
  23 *
  24 */
  25
  26static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */
  27static int automatic_resume = 0; /* experimental .. better should be zero */
  28static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */
  29static int fifo=0x8;    /* don't change */
  30
  31#include <linux/module.h>
  32#include <linux/kernel.h>
  33#include <linux/string.h>
  34#include <linux/errno.h>
  35#include <linux/ioport.h>
  36#include <linux/interrupt.h>
  37#include <linux/delay.h>
  38#include <linux/init.h>
  39#include <linux/bitops.h>
  40#include <asm/io.h>
  41#include <asm/idprom.h>
  42#include <asm/machines.h>
  43#include <asm/sun3mmu.h>
  44#include <asm/dvma.h>
  45#include <asm/byteorder.h>
  46
  47#include <linux/netdevice.h>
  48#include <linux/etherdevice.h>
  49#include <linux/skbuff.h>
  50
  51#include "sun3_82586.h"
  52
  53#define DRV_NAME "sun3_82586"
  54
  55#define DEBUG       /* debug on */
  56#define SYSBUSVAL 0 /* 16 Bit */
  57#define SUN3_82586_TOTAL_SIZE   PAGE_SIZE
  58
  59#define sun3_attn586()  {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
  60#define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
  61#define sun3_disint()   {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
  62#define sun3_enaint()   {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
  63#define sun3_active()   {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}
  64
  65#define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
  66#define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
  67#define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop )))
  68
  69/******************* how to calculate the buffers *****************************
  70
  71  * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
  72  * --------------- in a different (more stable?) mode. Only in this mode it's
  73  *                 possible to configure the driver with 'NO_NOPCOMMANDS'
  74
  75sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
  76sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
  77sizeof(rfd) = 24; sizeof(rbd) = 12;
  78sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
  79sizeof(nop_cmd) = 8;
  80
  81  * if you don't know the driver, better do not change these values: */
  82
  83#define RECV_BUFF_SIZE 1536 /* slightly oversized */
  84#define XMIT_BUFF_SIZE 1536 /* slightly oversized */
  85#define NUM_XMIT_BUFFS 1    /* config for 32K shmem */
  86#define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
  87#define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
  88#define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */
  89#define NO_NOPCOMMANDS      /* only possible with NUM_XMIT_BUFFS=1 */
  90
  91/**************************************************************************/
  92
  93/* different DELAYs */
  94#define DELAY(x) mdelay(32 * x);
  95#define DELAY_16(); { udelay(16); }
  96#define DELAY_18(); { udelay(4); }
  97
  98/* wait for command with timeout: */
  99#define WAIT_4_SCB_CMD() \
 100{ int i; \
 101  for(i=0;i<16384;i++) { \
 102    if(!p->scb->cmd_cuc) break; \
 103    DELAY_18(); \
 104    if(i == 16383) { \
 105      printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
 106       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
 107
 108#define WAIT_4_SCB_CMD_RUC() { int i; \
 109  for(i=0;i<16384;i++) { \
 110    if(!p->scb->cmd_ruc) break; \
 111    DELAY_18(); \
 112    if(i == 16383) { \
 113      printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
 114       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
 115
 116#define WAIT_4_STAT_COMPL(addr) { int i; \
 117   for(i=0;i<32767;i++) { \
 118     if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
 119     DELAY_16(); DELAY_16(); } }
 120
 121static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
 122static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
 123static int     sun3_82586_open(struct net_device *dev);
 124static int     sun3_82586_close(struct net_device *dev);
 125static int     sun3_82586_send_packet(struct sk_buff *,struct net_device *);
 126static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
 127static void    set_multicast_list(struct net_device *dev);
 128static void    sun3_82586_timeout(struct net_device *dev);
 129#if 0
 130static void    sun3_82586_dump(struct net_device *,void *);
 131#endif
 132
 133/* helper-functions */
 134static int     init586(struct net_device *dev);
 135static int     check586(struct net_device *dev,char *where,unsigned size);
 136static void    alloc586(struct net_device *dev);
 137static void    startrecv586(struct net_device *dev);
 138static void   *alloc_rfa(struct net_device *dev,void *ptr);
 139static void    sun3_82586_rcv_int(struct net_device *dev);
 140static void    sun3_82586_xmt_int(struct net_device *dev);
 141static void    sun3_82586_rnr_int(struct net_device *dev);
 142
 143struct priv
 144{
 145        unsigned long base;
 146        char *memtop;
 147        long int lock;
 148        int reseted;
 149        volatile struct rfd_struct      *rfd_last,*rfd_top,*rfd_first;
 150        volatile struct scp_struct      *scp;   /* volatile is important */
 151        volatile struct iscp_struct     *iscp;  /* volatile is important */
 152        volatile struct scb_struct      *scb;   /* volatile is important */
 153        volatile struct tbd_struct      *xmit_buffs[NUM_XMIT_BUFFS];
 154        volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
 155#if (NUM_XMIT_BUFFS == 1)
 156        volatile struct nop_cmd_struct *nop_cmds[2];
 157#else
 158        volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
 159#endif
 160        volatile int            nop_point,num_recv_buffs;
 161        volatile char           *xmit_cbuffs[NUM_XMIT_BUFFS];
 162        volatile int            xmit_count,xmit_last;
 163};
 164
 165/**********************************************
 166 * close device
 167 */
 168static int sun3_82586_close(struct net_device *dev)
 169{
 170        free_irq(dev->irq, dev);
 171
 172        sun3_reset586(); /* the hard way to stop the receiver */
 173
 174        netif_stop_queue(dev);
 175
 176        return 0;
 177}
 178
 179/**********************************************
 180 * open device
 181 */
 182static int sun3_82586_open(struct net_device *dev)
 183{
 184        int ret;
 185
 186        sun3_disint();
 187        alloc586(dev);
 188        init586(dev);
 189        startrecv586(dev);
 190        sun3_enaint();
 191
 192        ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev);
 193        if (ret)
 194        {
 195                sun3_reset586();
 196                return ret;
 197        }
 198
 199        netif_start_queue(dev);
 200
 201        return 0; /* most done by init */
 202}
 203
 204/**********************************************
 205 * Check to see if there's an 82586 out there.
 206 */
 207static int check586(struct net_device *dev,char *where,unsigned size)
 208{
 209        struct priv pb;
 210        struct priv *p = &pb;
 211        char *iscp_addr;
 212        int i;
 213
 214        p->base = (unsigned long) dvma_btov(0);
 215        p->memtop = (char *)dvma_btov((unsigned long)where);
 216        p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
 217        memset((char *)p->scp,0, sizeof(struct scp_struct));
 218        for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
 219                if(((char *)p->scp)[i])
 220                        return 0;
 221        p->scp->sysbus = SYSBUSVAL;                             /* 1 = 8Bit-Bus, 0 = 16 Bit */
 222        if(p->scp->sysbus != SYSBUSVAL)
 223                return 0;
 224
 225        iscp_addr = (char *)dvma_btov((unsigned long)where);
 226
 227        p->iscp = (struct iscp_struct *) iscp_addr;
 228        memset((char *)p->iscp,0, sizeof(struct iscp_struct));
 229
 230        p->scp->iscp = make24(p->iscp);
 231        p->iscp->busy = 1;
 232
 233        sun3_reset586();
 234        sun3_attn586();
 235        DELAY(1);       /* wait a while... */
 236
 237        if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
 238                return 0;
 239
 240        return 1;
 241}
 242
 243/******************************************************************
 244 * set iscp at the right place, called by sun3_82586_probe1 and open586.
 245 */
 246static void alloc586(struct net_device *dev)
 247{
 248        struct priv *p = netdev_priv(dev);
 249
 250        sun3_reset586();
 251        DELAY(1);
 252
 253        p->scp  = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
 254        p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start);
 255        p->scb  = (struct scb_struct *)  ((char *)p->iscp + sizeof(struct iscp_struct));
 256
 257        memset((char *) p->iscp,0,sizeof(struct iscp_struct));
 258        memset((char *) p->scp ,0,sizeof(struct scp_struct));
 259
 260        p->scp->iscp = make24(p->iscp);
 261        p->scp->sysbus = SYSBUSVAL;
 262        p->iscp->scb_offset = make16(p->scb);
 263        p->iscp->scb_base = make24(dvma_btov(dev->mem_start));
 264
 265        p->iscp->busy = 1;
 266        sun3_reset586();
 267        sun3_attn586();
 268
 269        DELAY(1);
 270
 271        if(p->iscp->busy)
 272                printk("%s: Init-Problems (alloc).\n",dev->name);
 273
 274        p->reseted = 0;
 275
 276        memset((char *)p->scb,0,sizeof(struct scb_struct));
 277}
 278
 279struct net_device * __init sun3_82586_probe(int unit)
 280{
 281        struct net_device *dev;
 282        unsigned long ioaddr;
 283        static int found = 0;
 284        int err = -ENOMEM;
 285
 286        /* check that this machine has an onboard 82586 */
 287        switch(idprom->id_machtype) {
 288        case SM_SUN3|SM_3_160:
 289        case SM_SUN3|SM_3_260:
 290                /* these machines have 82586 */
 291                break;
 292
 293        default:
 294                return ERR_PTR(-ENODEV);
 295        }
 296
 297        if (found)
 298                return ERR_PTR(-ENODEV);
 299
 300        ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
 301        if (!ioaddr)
 302                return ERR_PTR(-ENOMEM);
 303        found = 1;
 304
 305        dev = alloc_etherdev(sizeof(struct priv));
 306        if (!dev)
 307                goto out;
 308        if (unit >= 0) {
 309                sprintf(dev->name, "eth%d", unit);
 310                netdev_boot_setup_check(dev);
 311        }
 312
 313        dev->irq = IE_IRQ;
 314        dev->base_addr = ioaddr;
 315        err = sun3_82586_probe1(dev, ioaddr);
 316        if (err)
 317                goto out1;
 318        err = register_netdev(dev);
 319        if (err)
 320                goto out2;
 321        return dev;
 322
 323out2:
 324        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 325out1:
 326        free_netdev(dev);
 327out:
 328        iounmap((void __iomem *)ioaddr);
 329        return ERR_PTR(err);
 330}
 331
 332static const struct net_device_ops sun3_82586_netdev_ops = {
 333        .ndo_open               = sun3_82586_open,
 334        .ndo_stop               = sun3_82586_close,
 335        .ndo_start_xmit         = sun3_82586_send_packet,
 336        .ndo_set_multicast_list = set_multicast_list,
 337        .ndo_tx_timeout         = sun3_82586_timeout,
 338        .ndo_get_stats          = sun3_82586_get_stats,
 339        .ndo_validate_addr      = eth_validate_addr,
 340        .ndo_set_mac_address    = eth_mac_addr,
 341        .ndo_change_mtu         = eth_change_mtu,
 342};
 343
 344static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
 345{
 346        int i, size, retval;
 347
 348        if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
 349                return -EBUSY;
 350
 351        /* copy in the ethernet address from the prom */
 352        for(i = 0; i < 6 ; i++)
 353             dev->dev_addr[i] = idprom->id_ethaddr[i];
 354
 355        printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
 356
 357        /*
 358         * check (or search) IO-Memory, 32K
 359         */
 360        size = 0x8000;
 361
 362        dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
 363        dev->mem_end = dev->mem_start + size;
 364
 365        if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
 366                printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
 367                retval = -ENODEV;
 368                goto out;
 369        }
 370        if(!check586(dev,(char *) dev->mem_start,size)) {
 371                printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
 372                retval = -ENODEV;
 373                goto out;
 374        }
 375
 376        ((struct priv *)netdev_priv(dev))->memtop =
 377                                        (char *)dvma_btov(dev->mem_start);
 378        ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
 379        alloc586(dev);
 380
 381        /* set number of receive-buffs according to memsize */
 382        if(size == 0x2000)
 383                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 384                                                        NUM_RECV_BUFFS_8;
 385        else if(size == 0x4000)
 386                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 387                                                        NUM_RECV_BUFFS_16;
 388        else
 389                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 390                                                        NUM_RECV_BUFFS_32;
 391
 392        printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
 393
 394        dev->netdev_ops         = &sun3_82586_netdev_ops;
 395        dev->watchdog_timeo     = HZ/20;
 396
 397        dev->if_port            = 0;
 398        return 0;
 399out:
 400        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 401        return retval;
 402}
 403
 404
 405static int init586(struct net_device *dev)
 406{
 407        void *ptr;
 408        int i,result=0;
 409        struct priv *p = netdev_priv(dev);
 410        volatile struct configure_cmd_struct    *cfg_cmd;
 411        volatile struct iasetup_cmd_struct *ias_cmd;
 412        volatile struct tdr_cmd_struct *tdr_cmd;
 413        volatile struct mcsetup_cmd_struct *mc_cmd;
 414        struct netdev_hw_addr *ha;
 415        int num_addrs=netdev_mc_count(dev);
 416
 417        ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct));
 418
 419        cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */
 420        cfg_cmd->cmd_status     = 0;
 421        cfg_cmd->cmd_cmd        = swab16(CMD_CONFIGURE | CMD_LAST);
 422        cfg_cmd->cmd_link       = 0xffff;
 423
 424        cfg_cmd->byte_cnt       = 0x0a; /* number of cfg bytes */
 425        cfg_cmd->fifo           = fifo; /* fifo-limit (8=tx:32/rx:64) */
 426        cfg_cmd->sav_bf         = 0x40; /* hold or discard bad recv frames (bit 7) */
 427        cfg_cmd->adr_len        = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
 428        cfg_cmd->priority       = 0x00;
 429        cfg_cmd->ifs            = 0x60;
 430        cfg_cmd->time_low       = 0x00;
 431        cfg_cmd->time_high      = 0xf2;
 432        cfg_cmd->promisc        = 0;
 433        if(dev->flags & IFF_ALLMULTI) {
 434                int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
 435                if(num_addrs > len)     {
 436                        printk("%s: switching to promisc. mode\n",dev->name);
 437                        cfg_cmd->promisc = 1;
 438                }
 439        }
 440        if(dev->flags&IFF_PROMISC)
 441                cfg_cmd->promisc = 1;
 442        cfg_cmd->carr_coll      = 0x00;
 443
 444        p->scb->cbl_offset      = make16(cfg_cmd);
 445        p->scb->cmd_ruc         = 0;
 446
 447        p->scb->cmd_cuc         = CUC_START; /* cmd.-unit start */
 448        sun3_attn586();
 449
 450        WAIT_4_STAT_COMPL(cfg_cmd);
 451
 452        if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
 453        {
 454                printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
 455                return 1;
 456        }
 457
 458        /*
 459         * individual address setup
 460         */
 461
 462        ias_cmd = (struct iasetup_cmd_struct *)ptr;
 463
 464        ias_cmd->cmd_status     = 0;
 465        ias_cmd->cmd_cmd        = swab16(CMD_IASETUP | CMD_LAST);
 466        ias_cmd->cmd_link       = 0xffff;
 467
 468        memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN);
 469
 470        p->scb->cbl_offset = make16(ias_cmd);
 471
 472        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 473        sun3_attn586();
 474
 475        WAIT_4_STAT_COMPL(ias_cmd);
 476
 477        if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
 478                printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
 479                return 1;
 480        }
 481
 482        /*
 483         * TDR, wire check .. e.g. no resistor e.t.c
 484         */
 485
 486        tdr_cmd = (struct tdr_cmd_struct *)ptr;
 487
 488        tdr_cmd->cmd_status     = 0;
 489        tdr_cmd->cmd_cmd        = swab16(CMD_TDR | CMD_LAST);
 490        tdr_cmd->cmd_link       = 0xffff;
 491        tdr_cmd->status         = 0;
 492
 493        p->scb->cbl_offset = make16(tdr_cmd);
 494        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 495        sun3_attn586();
 496
 497        WAIT_4_STAT_COMPL(tdr_cmd);
 498
 499        if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
 500        {
 501                printk("%s: Problems while running the TDR.\n",dev->name);
 502        }
 503        else
 504        {
 505                DELAY_16(); /* wait for result */
 506                result = swab16(tdr_cmd->status);
 507
 508                p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 509                sun3_attn586(); /* ack the interrupts */
 510
 511                if(result & TDR_LNK_OK)
 512                        ;
 513                else if(result & TDR_XCVR_PRB)
 514                        printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
 515                else if(result & TDR_ET_OPN)
 516                        printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 517                else if(result & TDR_ET_SRT)
 518                {
 519                        if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
 520                                printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 521                }
 522                else
 523                        printk("%s: TDR: Unknown status %04x\n",dev->name,result);
 524        }
 525
 526        /*
 527         * Multicast setup
 528         */
 529        if(num_addrs && !(dev->flags & IFF_PROMISC) )
 530        {
 531                mc_cmd = (struct mcsetup_cmd_struct *) ptr;
 532                mc_cmd->cmd_status = 0;
 533                mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
 534                mc_cmd->cmd_link = 0xffff;
 535                mc_cmd->mc_cnt = swab16(num_addrs * 6);
 536
 537                i = 0;
 538                netdev_for_each_mc_addr(ha, dev)
 539                        memcpy((char *) mc_cmd->mc_list[i++],
 540                               ha->addr, ETH_ALEN);
 541
 542                p->scb->cbl_offset = make16(mc_cmd);
 543                p->scb->cmd_cuc = CUC_START;
 544                sun3_attn586();
 545
 546                WAIT_4_STAT_COMPL(mc_cmd);
 547
 548                if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
 549                        printk("%s: Can't apply multicast-address-list.\n",dev->name);
 550        }
 551
 552        /*
 553         * alloc nop/xmit-cmds
 554         */
 555#if (NUM_XMIT_BUFFS == 1)
 556        for(i=0;i<2;i++)
 557        {
 558                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 559                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 560                p->nop_cmds[i]->cmd_status      = 0;
 561                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 562                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 563        }
 564#else
 565        for(i=0;i<NUM_XMIT_BUFFS;i++)
 566        {
 567                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 568                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 569                p->nop_cmds[i]->cmd_status      = 0;
 570                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 571                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 572        }
 573#endif
 574
 575        ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */
 576
 577        /*
 578         * alloc xmit-buffs / init xmit_cmds
 579         */
 580        for(i=0;i<NUM_XMIT_BUFFS;i++)
 581        {
 582                p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
 583                ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
 584                p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
 585                ptr = (char *) ptr + XMIT_BUFF_SIZE;
 586                p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
 587                ptr = (char *) ptr + sizeof(struct tbd_struct);
 588                if((void *)ptr > (void *)dev->mem_end)
 589                {
 590                        printk("%s: not enough shared-mem for your configuration!\n",dev->name);
 591                        return 1;
 592                }
 593                memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
 594                memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
 595                p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
 596                p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
 597                p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
 598                p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
 599                p->xmit_buffs[i]->next = 0xffff;
 600                p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
 601        }
 602
 603        p->xmit_count = 0;
 604        p->xmit_last    = 0;
 605#ifndef NO_NOPCOMMANDS
 606        p->nop_point    = 0;
 607#endif
 608
 609         /*
 610                * 'start transmitter'
 611                */
 612#ifndef NO_NOPCOMMANDS
 613        p->scb->cbl_offset = make16(p->nop_cmds[0]);
 614        p->scb->cmd_cuc = CUC_START;
 615        sun3_attn586();
 616        WAIT_4_SCB_CMD();
 617#else
 618        p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
 619        p->xmit_cmds[0]->cmd_cmd        = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
 620#endif
 621
 622        /*
 623         * ack. interrupts
 624         */
 625        p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 626        sun3_attn586();
 627        DELAY_16();
 628
 629        sun3_enaint();
 630        sun3_active();
 631
 632        return 0;
 633}
 634
 635/******************************************************
 636 * This is a helper routine for sun3_82586_rnr_int() and init586().
 637 * It sets up the Receive Frame Area (RFA).
 638 */
 639
 640static void *alloc_rfa(struct net_device *dev,void *ptr)
 641{
 642        volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
 643        volatile struct rbd_struct *rbd;
 644        int i;
 645        struct priv *p = netdev_priv(dev);
 646
 647        memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
 648        p->rfd_first = rfd;
 649
 650        for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
 651                rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
 652                rfd[i].rbd_offset = 0xffff;
 653        }
 654        rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;         /* RU suspend */
 655
 656        ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
 657
 658        rbd = (struct rbd_struct *) ptr;
 659        ptr = (void *) (rbd + p->num_recv_buffs);
 660
 661         /* clr descriptors */
 662        memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));
 663
 664        for(i=0;i<p->num_recv_buffs;i++)
 665        {
 666                rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
 667                rbd[i].size = swab16(RECV_BUFF_SIZE);
 668                rbd[i].buffer = make24(ptr);
 669                ptr = (char *) ptr + RECV_BUFF_SIZE;
 670        }
 671
 672        p->rfd_top      = p->rfd_first;
 673        p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);
 674
 675        p->scb->rfa_offset              = make16(p->rfd_first);
 676        p->rfd_first->rbd_offset        = make16(rbd);
 677
 678        return ptr;
 679}
 680
 681
 682/**************************************************
 683 * Interrupt Handler ...
 684 */
 685
 686static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
 687{
 688        struct net_device *dev = dev_id;
 689        unsigned short stat;
 690        int cnt=0;
 691        struct priv *p;
 692
 693        if (!dev) {
 694                printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
 695                return IRQ_NONE;
 696        }
 697        p = netdev_priv(dev);
 698
 699        if(debuglevel > 1)
 700                printk("I");
 701
 702        WAIT_4_SCB_CMD(); /* wait for last command      */
 703
 704        while((stat=p->scb->cus & STAT_MASK))
 705        {
 706                p->scb->cmd_cuc = stat;
 707                sun3_attn586();
 708
 709                if(stat & STAT_FR)       /* received a frame */
 710                        sun3_82586_rcv_int(dev);
 711
 712                if(stat & STAT_RNR) /* RU went 'not ready' */
 713                {
 714                        printk("(R)");
 715                        if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
 716                        {
 717                                WAIT_4_SCB_CMD();
 718                                p->scb->cmd_ruc = RUC_RESUME;
 719                                sun3_attn586();
 720                                WAIT_4_SCB_CMD_RUC();
 721                        }
 722                        else
 723                        {
 724                                printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
 725                                sun3_82586_rnr_int(dev);
 726                        }
 727                }
 728
 729                if(stat & STAT_CX)              /* command with I-bit set complete */
 730                         sun3_82586_xmt_int(dev);
 731
 732#ifndef NO_NOPCOMMANDS
 733                if(stat & STAT_CNA)     /* CU went 'not ready' */
 734                {
 735                        if(netif_running(dev))
 736                                printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
 737                }
 738#endif
 739
 740                if(debuglevel > 1)
 741                        printk("%d",cnt++);
 742
 743                WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
 744                if(p->scb->cmd_cuc)      /* timed out? */
 745                {
 746                        printk("%s: Acknowledge timed out.\n",dev->name);
 747                        sun3_disint();
 748                        break;
 749                }
 750        }
 751
 752        if(debuglevel > 1)
 753                printk("i");
 754        return IRQ_HANDLED;
 755}
 756
 757/*******************************************************
 758 * receive-interrupt
 759 */
 760
 761static void sun3_82586_rcv_int(struct net_device *dev)
 762{
 763        int status,cnt=0;
 764        unsigned short totlen;
 765        struct sk_buff *skb;
 766        struct rbd_struct *rbd;
 767        struct priv *p = netdev_priv(dev);
 768
 769        if(debuglevel > 0)
 770                printk("R");
 771
 772        for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
 773        {
 774                        rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
 775
 776                        if(status & RFD_OK) /* frame received without error? */
 777                        {
 778                                if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
 779                                {
 780                                        totlen &= RBD_MASK; /* length of this frame */
 781                                        rbd->status = 0;
 782                                        skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
 783                                        if(skb != NULL)
 784                                        {
 785                                                skb_reserve(skb,2);
 786                                                skb_put(skb,totlen);
 787                                                skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
 788                                                skb->protocol=eth_type_trans(skb,dev);
 789                                                netif_rx(skb);
 790                                                dev->stats.rx_packets++;
 791                                        }
 792                                        else
 793                                                dev->stats.rx_dropped++;
 794                                }
 795                                else
 796                                {
 797                                        int rstat;
 798                                                 /* free all RBD's until RBD_LAST is set */
 799                                        totlen = 0;
 800                                        while(!((rstat=swab16(rbd->status)) & RBD_LAST))
 801                                        {
 802                                                totlen += rstat & RBD_MASK;
 803                                                if(!rstat)
 804                                                {
 805                                                        printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
 806                                                        break;
 807                                                }
 808                                                rbd->status = 0;
 809                                                rbd = (struct rbd_struct *) make32(rbd->next);
 810                                        }
 811                                        totlen += rstat & RBD_MASK;
 812                                        rbd->status = 0;
 813                                        printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
 814                                        dev->stats.rx_dropped++;
 815                         }
 816                }
 817                else /* frame !(ok), only with 'save-bad-frames' */
 818                {
 819                        printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
 820                        dev->stats.rx_errors++;
 821                }
 822                p->rfd_top->stat_high = 0;
 823                p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
 824                p->rfd_top->rbd_offset = 0xffff;
 825                p->rfd_last->last = 0;                          /* delete RFD_SUSP      */
 826                p->rfd_last = p->rfd_top;
 827                p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
 828                p->scb->rfa_offset = make16(p->rfd_top);
 829
 830                if(debuglevel > 0)
 831                        printk("%d",cnt++);
 832        }
 833
 834        if(automatic_resume)
 835        {
 836                WAIT_4_SCB_CMD();
 837                p->scb->cmd_ruc = RUC_RESUME;
 838                sun3_attn586();
 839                WAIT_4_SCB_CMD_RUC();
 840        }
 841
 842#ifdef WAIT_4_BUSY
 843        {
 844                int i;
 845                for(i=0;i<1024;i++)
 846                {
 847                        if(p->rfd_top->status)
 848                                break;
 849                        DELAY_16();
 850                        if(i == 1023)
 851                                printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
 852                }
 853        }
 854#endif
 855
 856#if 0
 857        if(!at_least_one)
 858        {
 859                int i;
 860                volatile struct rfd_struct *rfds=p->rfd_top;
 861                volatile struct rbd_struct *rbds;
 862                printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
 863                for(i=0;i< (p->num_recv_buffs+4);i++)
 864                {
 865                        rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
 866                        printk("%04x:%04x ",rfds->status,rbds->status);
 867                        rfds = (struct rfd_struct *) make32(rfds->next);
 868                }
 869                printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
 870                printk("\nerrs: %04x %04x rus: %02x, cus: %02x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->rus,(int)p->scb->cus);
 871        }
 872        old_at_least = at_least_one;
 873#endif
 874
 875        if(debuglevel > 0)
 876                printk("r");
 877}
 878
 879/**********************************************************
 880 * handle 'Receiver went not ready'.
 881 */
 882
 883static void sun3_82586_rnr_int(struct net_device *dev)
 884{
 885        struct priv *p = netdev_priv(dev);
 886
 887        dev->stats.rx_errors++;
 888
 889        WAIT_4_SCB_CMD();               /* wait for the last cmd, WAIT_4_FULLSTAT?? */
 890        p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
 891        sun3_attn586();
 892        WAIT_4_SCB_CMD_RUC();           /* wait for accept cmd. */
 893
 894        alloc_rfa(dev,(char *)p->rfd_first);
 895/* maybe add a check here, before restarting the RU */
 896        startrecv586(dev); /* restart RU */
 897
 898        printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
 899
 900}
 901
 902/**********************************************************
 903 * handle xmit - interrupt
 904 */
 905
 906static void sun3_82586_xmt_int(struct net_device *dev)
 907{
 908        int status;
 909        struct priv *p = netdev_priv(dev);
 910
 911        if(debuglevel > 0)
 912                printk("X");
 913
 914        status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
 915        if(!(status & STAT_COMPL))
 916                printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);
 917
 918        if(status & STAT_OK)
 919        {
 920                dev->stats.tx_packets++;
 921                dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
 922        }
 923        else
 924        {
 925                dev->stats.tx_errors++;
 926                if(status & TCMD_LATECOLL) {
 927                        printk("%s: late collision detected.\n",dev->name);
 928                        dev->stats.collisions++;
 929                }
 930                else if(status & TCMD_NOCARRIER) {
 931                        dev->stats.tx_carrier_errors++;
 932                        printk("%s: no carrier detected.\n",dev->name);
 933                }
 934                else if(status & TCMD_LOSTCTS)
 935                        printk("%s: loss of CTS detected.\n",dev->name);
 936                else if(status & TCMD_UNDERRUN) {
 937                        dev->stats.tx_fifo_errors++;
 938                        printk("%s: DMA underrun detected.\n",dev->name);
 939                }
 940                else if(status & TCMD_MAXCOLL) {
 941                        printk("%s: Max. collisions exceeded.\n",dev->name);
 942                        dev->stats.collisions += 16;
 943                }
 944        }
 945
 946#if (NUM_XMIT_BUFFS > 1)
 947        if( (++p->xmit_last) == NUM_XMIT_BUFFS)
 948                p->xmit_last = 0;
 949#endif
 950        netif_wake_queue(dev);
 951}
 952
 953/***********************************************************
 954 * (re)start the receiver
 955 */
 956
 957static void startrecv586(struct net_device *dev)
 958{
 959        struct priv *p = netdev_priv(dev);
 960
 961        WAIT_4_SCB_CMD();
 962        WAIT_4_SCB_CMD_RUC();
 963        p->scb->rfa_offset = make16(p->rfd_first);
 964        p->scb->cmd_ruc = RUC_START;
 965        sun3_attn586();         /* start cmd. */
 966        WAIT_4_SCB_CMD_RUC();   /* wait for accept cmd. (no timeout!!) */
 967}
 968
 969static void sun3_82586_timeout(struct net_device *dev)
 970{
 971        struct priv *p = netdev_priv(dev);
 972#ifndef NO_NOPCOMMANDS
 973        if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
 974        {
 975                netif_wake_queue(dev);
 976#ifdef DEBUG
 977                printk("%s: strange ... timeout with CU active?!?\n",dev->name);
 978                printk("%s: X0: %04x N0: %04x N1: %04x %d\n",dev->name,(int)swab16(p->xmit_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[1]->cmd_status),(int)p->nop_point);
 979#endif
 980                p->scb->cmd_cuc = CUC_ABORT;
 981                sun3_attn586();
 982                WAIT_4_SCB_CMD();
 983                p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
 984                p->scb->cmd_cuc = CUC_START;
 985                sun3_attn586();
 986                WAIT_4_SCB_CMD();
 987                dev->trans_start = jiffies; /* prevent tx timeout */
 988                return 0;
 989        }
 990#endif
 991        {
 992#ifdef DEBUG
 993                printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
 994                printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
 995                printk("%s: check, whether you set the right interrupt number!\n",dev->name);
 996#endif
 997                sun3_82586_close(dev);
 998                sun3_82586_open(dev);
 999        }
1000        dev->trans_start = jiffies; /* prevent tx timeout */
1001}
1002
1003/******************************************************
1004 * send frame
1005 */
1006
1007static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
1008{
1009        int len,i;
1010#ifndef NO_NOPCOMMANDS
1011        int next_nop;
1012#endif
1013        struct priv *p = netdev_priv(dev);
1014
1015        if(skb->len > XMIT_BUFF_SIZE)
1016        {
1017                printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
1018                return NETDEV_TX_OK;
1019        }
1020
1021        netif_stop_queue(dev);
1022
1023#if(NUM_XMIT_BUFFS > 1)
1024        if(test_and_set_bit(0,(void *) &p->lock)) {
1025                printk("%s: Queue was locked\n",dev->name);
1026                return NETDEV_TX_BUSY;
1027        }
1028        else
1029#endif
1030        {
1031                len = skb->len;
1032                if (len < ETH_ZLEN) {
1033                        memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
1034                               ETH_ZLEN);
1035                        len = ETH_ZLEN;
1036                }
1037                skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
1038
1039#if (NUM_XMIT_BUFFS == 1)
1040#       ifdef NO_NOPCOMMANDS
1041
1042#ifdef DEBUG
1043                if(p->scb->cus & CU_ACTIVE)
1044                {
1045                        printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
1046                        printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
1047                }
1048#endif
1049
1050                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1051                for(i=0;i<16;i++)
1052                {
1053                        p->xmit_cmds[0]->cmd_status = 0;
1054                        WAIT_4_SCB_CMD();
1055                        if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
1056                                p->scb->cmd_cuc = CUC_RESUME;
1057                        else
1058                        {
1059                                p->scb->cbl_offset = make16(p->xmit_cmds[0]);
1060                                p->scb->cmd_cuc = CUC_START;
1061                        }
1062
1063                        sun3_attn586();
1064                        if(!i)
1065                                dev_kfree_skb(skb);
1066                        WAIT_4_SCB_CMD();
1067                        if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
1068                                break;
1069                        if(p->xmit_cmds[0]->cmd_status)
1070                                break;
1071                        if(i==15)
1072                                printk("%s: Can't start transmit-command.\n",dev->name);
1073                }
1074#       else
1075                next_nop = (p->nop_point + 1) & 0x1;
1076                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1077
1078                p->xmit_cmds[0]->cmd_link        = p->nop_cmds[next_nop]->cmd_link
1079                        = make16((p->nop_cmds[next_nop]));
1080                p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
1081
1082                p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
1083                p->nop_point = next_nop;
1084                dev_kfree_skb(skb);
1085#       endif
1086#else
1087                p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
1088                if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
1089                        next_nop = 0;
1090
1091                p->xmit_cmds[p->xmit_count]->cmd_status = 0;
1092                /* linkpointer of xmit-command already points to next nop cmd */
1093                p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
1094                p->nop_cmds[next_nop]->cmd_status = 0;
1095
1096                p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
1097                p->xmit_count = next_nop;
1098
1099                {
1100                        unsigned long flags;
1101                        local_irq_save(flags);
1102                        if(p->xmit_count != p->xmit_last)
1103                                netif_wake_queue(dev);
1104                        p->lock = 0;
1105                        local_irq_restore(flags);
1106                }
1107                dev_kfree_skb(skb);
1108#endif
1109        }
1110        return NETDEV_TX_OK;
1111}
1112
1113/*******************************************
1114 * Someone wanna have the statistics
1115 */
1116
1117static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
1118{
1119        struct priv *p = netdev_priv(dev);
1120        unsigned short crc,aln,rsc,ovrn;
1121
1122        crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
1123        p->scb->crc_errs = 0;
1124        aln = swab16(p->scb->aln_errs);
1125        p->scb->aln_errs = 0;
1126        rsc = swab16(p->scb->rsc_errs);
1127        p->scb->rsc_errs = 0;
1128        ovrn = swab16(p->scb->ovrn_errs);
1129        p->scb->ovrn_errs = 0;
1130
1131        dev->stats.rx_crc_errors += crc;
1132        dev->stats.rx_fifo_errors += ovrn;
1133        dev->stats.rx_frame_errors += aln;
1134        dev->stats.rx_dropped += rsc;
1135
1136        return &dev->stats;
1137}
1138
1139/********************************************************
1140 * Set MC list ..
1141 */
1142
1143static void set_multicast_list(struct net_device *dev)
1144{
1145        netif_stop_queue(dev);
1146        sun3_disint();
1147        alloc586(dev);
1148        init586(dev);
1149        startrecv586(dev);
1150        sun3_enaint();
1151        netif_wake_queue(dev);
1152}
1153
1154#ifdef MODULE
1155#error This code is not currently supported as a module
1156static struct net_device *dev_sun3_82586;
1157
1158int init_module(void)
1159{
1160        dev_sun3_82586 = sun3_82586_probe(-1);
1161        if (IS_ERR(dev_sun3_82586))
1162                return PTR_ERR(dev_sun3_82586);
1163        return 0;
1164}
1165
1166void cleanup_module(void)
1167{
1168        unsigned long ioaddr = dev_sun3_82586->base_addr;
1169        unregister_netdev(dev_sun3_82586);
1170        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
1171        iounmap((void *)ioaddr);
1172        free_netdev(dev_sun3_82586);
1173}
1174#endif /* MODULE */
1175
1176#if 0
1177/*
1178 * DUMP .. we expect a not running CMD unit and enough space
1179 */
1180void sun3_82586_dump(struct net_device *dev,void *ptr)
1181{
1182        struct priv *p = netdev_priv(dev);
1183        struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
1184        int i;
1185
1186        p->scb->cmd_cuc = CUC_ABORT;
1187        sun3_attn586();
1188        WAIT_4_SCB_CMD();
1189        WAIT_4_SCB_CMD_RUC();
1190
1191        dump_cmd->cmd_status = 0;
1192        dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
1193        dump_cmd->dump_offset = make16((dump_cmd + 1));
1194        dump_cmd->cmd_link = 0xffff;
1195
1196        p->scb->cbl_offset = make16(dump_cmd);
1197        p->scb->cmd_cuc = CUC_START;
1198        sun3_attn586();
1199        WAIT_4_STAT_COMPL(dump_cmd);
1200
1201        if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
1202                                printk("%s: Can't get dump information.\n",dev->name);
1203
1204        for(i=0;i<170;i++) {
1205                printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
1206                if(i % 24 == 23)
1207                        printk("\n");
1208        }
1209        printk("\n");
1210}
1211#endif
1212
1213MODULE_LICENSE("GPL");
1214