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/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
  76sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
  77sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
  78sizeof(rfd) = 24; sizeof(rbd) = 12;
  79sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
  80sizeof(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
 122static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
 123static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
 124static int     sun3_82586_open(struct net_device *dev);
 125static int     sun3_82586_close(struct net_device *dev);
 126static int     sun3_82586_send_packet(struct sk_buff *,struct net_device *);
 127static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
 128static void    set_multicast_list(struct net_device *dev);
 129static void    sun3_82586_timeout(struct net_device *dev);
 130#if 0
 131static void    sun3_82586_dump(struct net_device *,void *);
 132#endif
 133
 134/* helper-functions */
 135static int     init586(struct net_device *dev);
 136static int     check586(struct net_device *dev,char *where,unsigned size);
 137static void    alloc586(struct net_device *dev);
 138static void    startrecv586(struct net_device *dev);
 139static void   *alloc_rfa(struct net_device *dev,void *ptr);
 140static void    sun3_82586_rcv_int(struct net_device *dev);
 141static void    sun3_82586_xmt_int(struct net_device *dev);
 142static void    sun3_82586_rnr_int(struct net_device *dev);
 143
 144struct 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 */
 170static 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 */
 184static 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 */
 209static 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 */
 248static 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
 281struct 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
 325out2:
 326        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 327out1:
 328        free_netdev(dev);
 329out:
 330        iounmap((void __iomem *)ioaddr);
 331        return ERR_PTR(err);
 332}
 333
 334static 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;
 390out:
 391        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 392        return retval;
 393}
 394
 395
 396static 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                        dev->flags|=IFF_PROMISC;
 429                }
 430        }
 431        if(dev->flags&IFF_PROMISC)
 432        {
 433                         cfg_cmd->promisc=1;
 434                         dev->flags|=IFF_PROMISC;
 435        }
 436        cfg_cmd->carr_coll      = 0x00;
 437
 438        p->scb->cbl_offset      = make16(cfg_cmd);
 439        p->scb->cmd_ruc         = 0;
 440
 441        p->scb->cmd_cuc         = CUC_START; /* cmd.-unit start */
 442        sun3_attn586();
 443
 444        WAIT_4_STAT_COMPL(cfg_cmd);
 445
 446        if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
 447        {
 448                printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
 449                return 1;
 450        }
 451
 452        /*
 453         * individual address setup
 454         */
 455
 456        ias_cmd = (struct iasetup_cmd_struct *)ptr;
 457
 458        ias_cmd->cmd_status     = 0;
 459        ias_cmd->cmd_cmd        = swab16(CMD_IASETUP | CMD_LAST);
 460        ias_cmd->cmd_link       = 0xffff;
 461
 462        memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN);
 463
 464        p->scb->cbl_offset = make16(ias_cmd);
 465
 466        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 467        sun3_attn586();
 468
 469        WAIT_4_STAT_COMPL(ias_cmd);
 470
 471        if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
 472                printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
 473                return 1;
 474        }
 475
 476        /*
 477         * TDR, wire check .. e.g. no resistor e.t.c
 478         */
 479
 480        tdr_cmd = (struct tdr_cmd_struct *)ptr;
 481
 482        tdr_cmd->cmd_status     = 0;
 483        tdr_cmd->cmd_cmd        = swab16(CMD_TDR | CMD_LAST);
 484        tdr_cmd->cmd_link       = 0xffff;
 485        tdr_cmd->status         = 0;
 486
 487        p->scb->cbl_offset = make16(tdr_cmd);
 488        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 489        sun3_attn586();
 490
 491        WAIT_4_STAT_COMPL(tdr_cmd);
 492
 493        if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
 494        {
 495                printk("%s: Problems while running the TDR.\n",dev->name);
 496        }
 497        else
 498        {
 499                DELAY_16(); /* wait for result */
 500                result = swab16(tdr_cmd->status);
 501
 502                p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 503                sun3_attn586(); /* ack the interrupts */
 504
 505                if(result & TDR_LNK_OK)
 506                        ;
 507                else if(result & TDR_XCVR_PRB)
 508                        printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
 509                else if(result & TDR_ET_OPN)
 510                        printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 511                else if(result & TDR_ET_SRT)
 512                {
 513                        if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
 514                                printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 515                }
 516                else
 517                        printk("%s: TDR: Unknown status %04x\n",dev->name,result);
 518        }
 519
 520        /*
 521         * Multicast setup
 522         */
 523        if(num_addrs && !(dev->flags & IFF_PROMISC) )
 524        {
 525                mc_cmd = (struct mcsetup_cmd_struct *) ptr;
 526                mc_cmd->cmd_status = 0;
 527                mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
 528                mc_cmd->cmd_link = 0xffff;
 529                mc_cmd->mc_cnt = swab16(num_addrs * 6);
 530
 531                for(i=0;i<num_addrs;i++,dmi=dmi->next)
 532                        memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr,6);
 533
 534                p->scb->cbl_offset = make16(mc_cmd);
 535                p->scb->cmd_cuc = CUC_START;
 536                sun3_attn586();
 537
 538                WAIT_4_STAT_COMPL(mc_cmd);
 539
 540                if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
 541                        printk("%s: Can't apply multicast-address-list.\n",dev->name);
 542        }
 543
 544        /*
 545         * alloc nop/xmit-cmds
 546         */
 547#if (NUM_XMIT_BUFFS == 1)
 548        for(i=0;i<2;i++)
 549        {
 550                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 551                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 552                p->nop_cmds[i]->cmd_status      = 0;
 553                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 554                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 555        }
 556#else
 557        for(i=0;i<NUM_XMIT_BUFFS;i++)
 558        {
 559                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 560                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 561                p->nop_cmds[i]->cmd_status      = 0;
 562                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 563                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 564        }
 565#endif
 566
 567        ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */
 568
 569        /*
 570         * alloc xmit-buffs / init xmit_cmds
 571         */
 572        for(i=0;i<NUM_XMIT_BUFFS;i++)
 573        {
 574                p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
 575                ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
 576                p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
 577                ptr = (char *) ptr + XMIT_BUFF_SIZE;
 578                p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
 579                ptr = (char *) ptr + sizeof(struct tbd_struct);
 580                if((void *)ptr > (void *)dev->mem_end)
 581                {
 582                        printk("%s: not enough shared-mem for your configuration!\n",dev->name);
 583                        return 1;
 584                }
 585                memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
 586                memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
 587                p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
 588                p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
 589                p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
 590                p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
 591                p->xmit_buffs[i]->next = 0xffff;
 592                p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
 593        }
 594
 595        p->xmit_count = 0;
 596        p->xmit_last    = 0;
 597#ifndef NO_NOPCOMMANDS
 598        p->nop_point    = 0;
 599#endif
 600
 601         /*
 602                * 'start transmitter'
 603                */
 604#ifndef NO_NOPCOMMANDS
 605        p->scb->cbl_offset = make16(p->nop_cmds[0]);
 606        p->scb->cmd_cuc = CUC_START;
 607        sun3_attn586();
 608        WAIT_4_SCB_CMD();
 609#else
 610        p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
 611        p->xmit_cmds[0]->cmd_cmd        = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
 612#endif
 613
 614        /*
 615         * ack. interrupts
 616         */
 617        p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 618        sun3_attn586();
 619        DELAY_16();
 620
 621        sun3_enaint();
 622        sun3_active();
 623
 624        return 0;
 625}
 626
 627/******************************************************
 628 * This is a helper routine for sun3_82586_rnr_int() and init586().
 629 * It sets up the Receive Frame Area (RFA).
 630 */
 631
 632static void *alloc_rfa(struct net_device *dev,void *ptr)
 633{
 634        volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
 635        volatile struct rbd_struct *rbd;
 636        int i;
 637        struct priv *p = (struct priv *) dev->priv;
 638
 639        memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
 640        p->rfd_first = rfd;
 641
 642        for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
 643                rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
 644                rfd[i].rbd_offset = 0xffff;
 645        }
 646        rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;         /* RU suspend */
 647
 648        ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
 649
 650        rbd = (struct rbd_struct *) ptr;
 651        ptr = (void *) (rbd + p->num_recv_buffs);
 652
 653         /* clr descriptors */
 654        memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));
 655
 656        for(i=0;i<p->num_recv_buffs;i++)
 657        {
 658                rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
 659                rbd[i].size = swab16(RECV_BUFF_SIZE);
 660                rbd[i].buffer = make24(ptr);
 661                ptr = (char *) ptr + RECV_BUFF_SIZE;
 662        }
 663
 664        p->rfd_top      = p->rfd_first;
 665        p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);
 666
 667        p->scb->rfa_offset              = make16(p->rfd_first);
 668        p->rfd_first->rbd_offset        = make16(rbd);
 669
 670        return ptr;
 671}
 672
 673
 674/**************************************************
 675 * Interrupt Handler ...
 676 */
 677
 678static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
 679{
 680        struct net_device *dev = dev_id;
 681        unsigned short stat;
 682        int cnt=0;
 683        struct priv *p;
 684
 685        if (!dev) {
 686                printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
 687                return IRQ_NONE;
 688        }
 689        p = (struct priv *) dev->priv;
 690
 691        if(debuglevel > 1)
 692                printk("I");
 693
 694        WAIT_4_SCB_CMD(); /* wait for last command      */
 695
 696        while((stat=p->scb->cus & STAT_MASK))
 697        {
 698                p->scb->cmd_cuc = stat;
 699                sun3_attn586();
 700
 701                if(stat & STAT_FR)       /* received a frame */
 702                        sun3_82586_rcv_int(dev);
 703
 704                if(stat & STAT_RNR) /* RU went 'not ready' */
 705                {
 706                        printk("(R)");
 707                        if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
 708                        {
 709                                WAIT_4_SCB_CMD();
 710                                p->scb->cmd_ruc = RUC_RESUME;
 711                                sun3_attn586();
 712                                WAIT_4_SCB_CMD_RUC();
 713                        }
 714                        else
 715                        {
 716                                printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
 717                                sun3_82586_rnr_int(dev);
 718                        }
 719                }
 720
 721                if(stat & STAT_CX)              /* command with I-bit set complete */
 722                         sun3_82586_xmt_int(dev);
 723
 724#ifndef NO_NOPCOMMANDS
 725                if(stat & STAT_CNA)     /* CU went 'not ready' */
 726                {
 727                        if(netif_running(dev))
 728                                printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
 729                }
 730#endif
 731
 732                if(debuglevel > 1)
 733                        printk("%d",cnt++);
 734
 735                WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
 736                if(p->scb->cmd_cuc)      /* timed out? */
 737                {
 738                        printk("%s: Acknowledge timed out.\n",dev->name);
 739                        sun3_disint();
 740                        break;
 741                }
 742        }
 743
 744        if(debuglevel > 1)
 745                printk("i");
 746        return IRQ_HANDLED;
 747}
 748
 749/*******************************************************
 750 * receive-interrupt
 751 */
 752
 753static void sun3_82586_rcv_int(struct net_device *dev)
 754{
 755        int status,cnt=0;
 756        unsigned short totlen;
 757        struct sk_buff *skb;
 758        struct rbd_struct *rbd;
 759        struct priv *p = (struct priv *) dev->priv;
 760
 761        if(debuglevel > 0)
 762                printk("R");
 763
 764        for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
 765        {
 766                        rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
 767
 768                        if(status & RFD_OK) /* frame received without error? */
 769                        {
 770                                if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
 771                                {
 772                                        totlen &= RBD_MASK; /* length of this frame */
 773                                        rbd->status = 0;
 774                                        skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
 775                                        if(skb != NULL)
 776                                        {
 777                                                skb_reserve(skb,2);
 778                                                skb_put(skb,totlen);
 779                                                skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
 780                                                skb->protocol=eth_type_trans(skb,dev);
 781                                                netif_rx(skb);
 782                                                p->stats.rx_packets++;
 783                                        }
 784                                        else
 785                                                p->stats.rx_dropped++;
 786                                }
 787                                else
 788                                {
 789                                        int rstat;
 790                                                 /* free all RBD's until RBD_LAST is set */
 791                                        totlen = 0;
 792                                        while(!((rstat=swab16(rbd->status)) & RBD_LAST))
 793                                        {
 794                                                totlen += rstat & RBD_MASK;
 795                                                if(!rstat)
 796                                                {
 797                                                        printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
 798                                                        break;
 799                                                }
 800                                                rbd->status = 0;
 801                                                rbd = (struct rbd_struct *) make32(rbd->next);
 802                                        }
 803                                        totlen += rstat & RBD_MASK;
 804                                        rbd->status = 0;
 805                                        printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
 806                                        p->stats.rx_dropped++;
 807                         }
 808                }
 809                else /* frame !(ok), only with 'save-bad-frames' */
 810                {
 811                        printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
 812                        p->stats.rx_errors++;
 813                }
 814                p->rfd_top->stat_high = 0;
 815                p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
 816                p->rfd_top->rbd_offset = 0xffff;
 817                p->rfd_last->last = 0;                          /* delete RFD_SUSP      */
 818                p->rfd_last = p->rfd_top;
 819                p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
 820                p->scb->rfa_offset = make16(p->rfd_top);
 821
 822                if(debuglevel > 0)
 823                        printk("%d",cnt++);
 824        }
 825
 826        if(automatic_resume)
 827        {
 828                WAIT_4_SCB_CMD();
 829                p->scb->cmd_ruc = RUC_RESUME;
 830                sun3_attn586();
 831                WAIT_4_SCB_CMD_RUC();
 832        }
 833
 834#ifdef WAIT_4_BUSY
 835        {
 836                int i;
 837                for(i=0;i<1024;i++)
 838                {
 839                        if(p->rfd_top->status)
 840                                break;
 841                        DELAY_16();
 842                        if(i == 1023)
 843                                printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
 844                }
 845        }
 846#endif
 847
 848#if 0
 849        if(!at_least_one)
 850        {
 851                int i;
 852                volatile struct rfd_struct *rfds=p->rfd_top;
 853                volatile struct rbd_struct *rbds;
 854                printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
 855                for(i=0;i< (p->num_recv_buffs+4);i++)
 856                {
 857                        rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
 858                        printk("%04x:%04x ",rfds->status,rbds->status);
 859                        rfds = (struct rfd_struct *) make32(rfds->next);
 860                }
 861                printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
 862                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);
 863        }
 864        old_at_least = at_least_one;
 865#endif
 866
 867        if(debuglevel > 0)
 868                printk("r");
 869}
 870
 871/**********************************************************
 872 * handle 'Receiver went not ready'.
 873 */
 874
 875static void sun3_82586_rnr_int(struct net_device *dev)
 876{
 877        struct priv *p = (struct priv *) dev->priv;
 878
 879        p->stats.rx_errors++;
 880
 881        WAIT_4_SCB_CMD();               /* wait for the last cmd, WAIT_4_FULLSTAT?? */
 882        p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
 883        sun3_attn586();
 884        WAIT_4_SCB_CMD_RUC();           /* wait for accept cmd. */
 885
 886        alloc_rfa(dev,(char *)p->rfd_first);
 887/* maybe add a check here, before restarting the RU */
 888        startrecv586(dev); /* restart RU */
 889
 890        printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
 891
 892}
 893
 894/**********************************************************
 895 * handle xmit - interrupt
 896 */
 897
 898static void sun3_82586_xmt_int(struct net_device *dev)
 899{
 900        int status;
 901        struct priv *p = (struct priv *) dev->priv;
 902
 903        if(debuglevel > 0)
 904                printk("X");
 905
 906        status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
 907        if(!(status & STAT_COMPL))
 908                printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);
 909
 910        if(status & STAT_OK)
 911        {
 912                p->stats.tx_packets++;
 913                p->stats.collisions += (status & TCMD_MAXCOLLMASK);
 914        }
 915        else
 916        {
 917                p->stats.tx_errors++;
 918                if(status & TCMD_LATECOLL) {
 919                        printk("%s: late collision detected.\n",dev->name);
 920                        p->stats.collisions++;
 921                }
 922                else if(status & TCMD_NOCARRIER) {
 923                        p->stats.tx_carrier_errors++;
 924                        printk("%s: no carrier detected.\n",dev->name);
 925                }
 926                else if(status & TCMD_LOSTCTS)
 927                        printk("%s: loss of CTS detected.\n",dev->name);
 928                else if(status & TCMD_UNDERRUN) {
 929                        p->stats.tx_fifo_errors++;
 930                        printk("%s: DMA underrun detected.\n",dev->name);
 931                }
 932                else if(status & TCMD_MAXCOLL) {
 933                        printk("%s: Max. collisions exceeded.\n",dev->name);
 934                        p->stats.collisions += 16;
 935                }
 936        }
 937
 938#if (NUM_XMIT_BUFFS > 1)
 939        if( (++p->xmit_last) == NUM_XMIT_BUFFS)
 940                p->xmit_last = 0;
 941#endif
 942        netif_wake_queue(dev);
 943}
 944
 945/***********************************************************
 946 * (re)start the receiver
 947 */
 948
 949static void startrecv586(struct net_device *dev)
 950{
 951        struct priv *p = (struct priv *) dev->priv;
 952
 953        WAIT_4_SCB_CMD();
 954        WAIT_4_SCB_CMD_RUC();
 955        p->scb->rfa_offset = make16(p->rfd_first);
 956        p->scb->cmd_ruc = RUC_START;
 957        sun3_attn586();         /* start cmd. */
 958        WAIT_4_SCB_CMD_RUC();   /* wait for accept cmd. (no timeout!!) */
 959}
 960
 961static void sun3_82586_timeout(struct net_device *dev)
 962{
 963        struct priv *p = (struct priv *) dev->priv;
 964#ifndef NO_NOPCOMMANDS
 965        if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
 966        {
 967                netif_wake_queue(dev);
 968#ifdef DEBUG
 969                printk("%s: strange ... timeout with CU active?!?\n",dev->name);
 970                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);
 971#endif
 972                p->scb->cmd_cuc = CUC_ABORT;
 973                sun3_attn586();
 974                WAIT_4_SCB_CMD();
 975                p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
 976                p->scb->cmd_cuc = CUC_START;
 977                sun3_attn586();
 978                WAIT_4_SCB_CMD();
 979                dev->trans_start = jiffies;
 980                return 0;
 981        }
 982#endif
 983        {
 984#ifdef DEBUG
 985                printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
 986                printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
 987                printk("%s: check, whether you set the right interrupt number!\n",dev->name);
 988#endif
 989                sun3_82586_close(dev);
 990                sun3_82586_open(dev);
 991        }
 992        dev->trans_start = jiffies;
 993}
 994
 995/******************************************************
 996 * send frame
 997 */
 998
 999static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
1000{
1001        int len,i;
1002#ifndef NO_NOPCOMMANDS
1003        int next_nop;
1004#endif
1005        struct priv *p = (struct priv *) dev->priv;
1006
1007        if(skb->len > XMIT_BUFF_SIZE)
1008        {
1009                printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
1010                return 0;
1011        }
1012
1013        netif_stop_queue(dev);
1014
1015#if(NUM_XMIT_BUFFS > 1)
1016        if(test_and_set_bit(0,(void *) &p->lock)) {
1017                printk("%s: Queue was locked\n",dev->name);
1018                return 1;
1019        }
1020        else
1021#endif
1022        {
1023                len = skb->len;
1024                if (len < ETH_ZLEN) {
1025                        memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
1026                               ETH_ZLEN);
1027                        len = ETH_ZLEN;
1028                }
1029                skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
1030
1031#if (NUM_XMIT_BUFFS == 1)
1032#       ifdef NO_NOPCOMMANDS
1033
1034#ifdef DEBUG
1035                if(p->scb->cus & CU_ACTIVE)
1036                {
1037                        printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
1038                        printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
1039                }
1040#endif
1041
1042                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1043                for(i=0;i<16;i++)
1044                {
1045                        p->xmit_cmds[0]->cmd_status = 0;
1046                        WAIT_4_SCB_CMD();
1047                        if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
1048                                p->scb->cmd_cuc = CUC_RESUME;
1049                        else
1050                        {
1051                                p->scb->cbl_offset = make16(p->xmit_cmds[0]);
1052                                p->scb->cmd_cuc = CUC_START;
1053                        }
1054
1055                        sun3_attn586();
1056                        dev->trans_start = jiffies;
1057                        if(!i)
1058                                dev_kfree_skb(skb);
1059                        WAIT_4_SCB_CMD();
1060                        if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
1061                                break;
1062                        if(p->xmit_cmds[0]->cmd_status)
1063                                break;
1064                        if(i==15)
1065                                printk("%s: Can't start transmit-command.\n",dev->name);
1066                }
1067#       else
1068                next_nop = (p->nop_point + 1) & 0x1;
1069                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1070
1071                p->xmit_cmds[0]->cmd_link        = p->nop_cmds[next_nop]->cmd_link
1072                        = make16((p->nop_cmds[next_nop]));
1073                p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
1074
1075                p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
1076                dev->trans_start = jiffies;
1077                p->nop_point = next_nop;
1078                dev_kfree_skb(skb);
1079#       endif
1080#else
1081                p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
1082                if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
1083                        next_nop = 0;
1084
1085                p->xmit_cmds[p->xmit_count]->cmd_status = 0;
1086                /* linkpointer of xmit-command already points to next nop cmd */
1087                p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
1088                p->nop_cmds[next_nop]->cmd_status = 0;
1089
1090                p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
1091                dev->trans_start = jiffies;
1092                p->xmit_count = next_nop;
1093
1094                {
1095                        unsigned long flags;
1096                        local_irq_save(flags);
1097                        if(p->xmit_count != p->xmit_last)
1098                                netif_wake_queue(dev);
1099                        p->lock = 0;
1100                        local_irq_restore(flags);
1101                }
1102                dev_kfree_skb(skb);
1103#endif
1104        }
1105        return 0;
1106}
1107
1108/*******************************************
1109 * Someone wanna have the statistics
1110 */
1111
1112static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
1113{
1114        struct priv *p = (struct priv *) dev->priv;
1115        unsigned short crc,aln,rsc,ovrn;
1116
1117        crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
1118        p->scb->crc_errs = 0;
1119        aln = swab16(p->scb->aln_errs);
1120        p->scb->aln_errs = 0;
1121        rsc = swab16(p->scb->rsc_errs);
1122        p->scb->rsc_errs = 0;
1123        ovrn = swab16(p->scb->ovrn_errs);
1124        p->scb->ovrn_errs = 0;
1125
1126        p->stats.rx_crc_errors += crc;
1127        p->stats.rx_fifo_errors += ovrn;
1128        p->stats.rx_frame_errors += aln;
1129        p->stats.rx_dropped += rsc;
1130
1131        return &p->stats;
1132}
1133
1134/********************************************************
1135 * Set MC list ..
1136 */
1137
1138static void set_multicast_list(struct net_device *dev)
1139{
1140        netif_stop_queue(dev);
1141        sun3_disint();
1142        alloc586(dev);
1143        init586(dev);
1144        startrecv586(dev);
1145        sun3_enaint();
1146        netif_wake_queue(dev);
1147}
1148
1149#ifdef MODULE
1150#error This code is not currently supported as a module
1151static struct net_device *dev_sun3_82586;
1152
1153int init_module(void)
1154{
1155        dev_sun3_82586 = sun3_82586_probe(-1);
1156        if (IS_ERR(dev_sun3_82586))
1157                return PTR_ERR(dev_sun3_82586);
1158        return 0;
1159}
1160
1161void cleanup_module(void)
1162{
1163        unsigned long ioaddr = dev_sun3_82586->base_addr;
1164        unregister_netdev(dev_sun3_82586);
1165        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
1166        iounmap((void *)ioaddr);
1167        free_netdev(dev_sun3_82586);
1168}
1169#endif /* MODULE */
1170
1171#if 0
1172/*
1173 * DUMP .. we expect a not running CMD unit and enough space
1174 */
1175void sun3_82586_dump(struct net_device *dev,void *ptr)
1176{
1177        struct priv *p = (struct priv *) dev->priv;
1178        struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
1179        int i;
1180
1181        p->scb->cmd_cuc = CUC_ABORT;
1182        sun3_attn586();
1183        WAIT_4_SCB_CMD();
1184        WAIT_4_SCB_CMD_RUC();
1185
1186        dump_cmd->cmd_status = 0;
1187        dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
1188        dump_cmd->dump_offset = make16((dump_cmd + 1));
1189        dump_cmd->cmd_link = 0xffff;
1190
1191        p->scb->cbl_offset = make16(dump_cmd);
1192        p->scb->cmd_cuc = CUC_START;
1193        sun3_attn586();
1194        WAIT_4_STAT_COMPL(dump_cmd);
1195
1196        if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
1197                                printk("%s: Can't get dump information.\n",dev->name);
1198
1199        for(i=0;i<170;i++) {
1200                printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
1201                if(i % 24 == 23)
1202                        printk("\n");
1203        }
1204        printk("\n");
1205}
1206#endif
1207
1208MODULE_LICENSE("GPL");
1209