git.oblomov.eu Git - linux-2.6/blob - drivers/net/sun3_82586.c

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