linux/drivers/net/ethernet/i825xx/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/kernel.h>
  32#include <linux/string.h>
  33#include <linux/errno.h>
  34#include <linux/ioport.h>
  35#include <linux/interrupt.h>
  36#include <linux/delay.h>
  37#include <linux/init.h>
  38#include <linux/bitops.h>
  39#include <asm/io.h>
  40#include <asm/idprom.h>
  41#include <asm/machines.h>
  42#include <asm/sun3mmu.h>
  43#include <asm/dvma.h>
  44#include <asm/byteorder.h>
  45
  46#include <linux/netdevice.h>
  47#include <linux/etherdevice.h>
  48#include <linux/skbuff.h>
  49
  50#include "sun3_82586.h"
  51
  52#define DRV_NAME "sun3_82586"
  53
  54#define DEBUG       /* debug on */
  55#define SYSBUSVAL 0 /* 16 Bit */
  56#define SUN3_82586_TOTAL_SIZE   PAGE_SIZE
  57
  58#define sun3_attn586()  {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
  59#define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
  60#define sun3_disint()   {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
  61#define sun3_enaint()   {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
  62#define sun3_active()   {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}
  63
  64#define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
  65#define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
  66#define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop )))
  67
  68/******************* how to calculate the buffers *****************************
  69
  70  * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
  71  * --------------- in a different (more stable?) mode. Only in this mode it's
  72  *                 possible to configure the driver with 'NO_NOPCOMMANDS'
  73
  74sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
  75sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
  76sizeof(rfd) = 24; sizeof(rbd) = 12;
  77sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
  78sizeof(nop_cmd) = 8;
  79
  80  * if you don't know the driver, better do not change these values: */
  81
  82#define RECV_BUFF_SIZE 1536 /* slightly oversized */
  83#define XMIT_BUFF_SIZE 1536 /* slightly oversized */
  84#define NUM_XMIT_BUFFS 1    /* config for 32K shmem */
  85#define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
  86#define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
  87#define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */
  88#define NO_NOPCOMMANDS      /* only possible with NUM_XMIT_BUFFS=1 */
  89
  90/**************************************************************************/
  91
  92/* different DELAYs */
  93#define DELAY(x) mdelay(32 * x);
  94#define DELAY_16(); { udelay(16); }
  95#define DELAY_18(); { udelay(4); }
  96
  97/* wait for command with timeout: */
  98#define WAIT_4_SCB_CMD() \
  99{ int i; \
 100  for(i=0;i<16384;i++) { \
 101    if(!p->scb->cmd_cuc) break; \
 102    DELAY_18(); \
 103    if(i == 16383) { \
 104      printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
 105       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
 106
 107#define WAIT_4_SCB_CMD_RUC() { int i; \
 108  for(i=0;i<16384;i++) { \
 109    if(!p->scb->cmd_ruc) break; \
 110    DELAY_18(); \
 111    if(i == 16383) { \
 112      printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
 113       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
 114
 115#define WAIT_4_STAT_COMPL(addr) { int i; \
 116   for(i=0;i<32767;i++) { \
 117     if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
 118     DELAY_16(); DELAY_16(); } }
 119
 120static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
 121static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
 122static int     sun3_82586_open(struct net_device *dev);
 123static int     sun3_82586_close(struct net_device *dev);
 124static int     sun3_82586_send_packet(struct sk_buff *,struct net_device *);
 125static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
 126static void    set_multicast_list(struct net_device *dev);
 127static void    sun3_82586_timeout(struct net_device *dev);
 128#if 0
 129static void    sun3_82586_dump(struct net_device *,void *);
 130#endif
 131
 132/* helper-functions */
 133static int     init586(struct net_device *dev);
 134static int     check586(struct net_device *dev,char *where,unsigned size);
 135static void    alloc586(struct net_device *dev);
 136static void    startrecv586(struct net_device *dev);
 137static void   *alloc_rfa(struct net_device *dev,void *ptr);
 138static void    sun3_82586_rcv_int(struct net_device *dev);
 139static void    sun3_82586_xmt_int(struct net_device *dev);
 140static void    sun3_82586_rnr_int(struct net_device *dev);
 141
 142struct priv
 143{
 144        unsigned long base;
 145        char *memtop;
 146        long int lock;
 147        int reseted;
 148        volatile struct rfd_struct      *rfd_last,*rfd_top,*rfd_first;
 149        volatile struct scp_struct      *scp;   /* volatile is important */
 150        volatile struct iscp_struct     *iscp;  /* volatile is important */
 151        volatile struct scb_struct      *scb;   /* volatile is important */
 152        volatile struct tbd_struct      *xmit_buffs[NUM_XMIT_BUFFS];
 153        volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
 154#if (NUM_XMIT_BUFFS == 1)
 155        volatile struct nop_cmd_struct *nop_cmds[2];
 156#else
 157        volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
 158#endif
 159        volatile int            nop_point,num_recv_buffs;
 160        volatile char           *xmit_cbuffs[NUM_XMIT_BUFFS];
 161        volatile int            xmit_count,xmit_last;
 162};
 163
 164/**********************************************
 165 * close device
 166 */
 167static int sun3_82586_close(struct net_device *dev)
 168{
 169        free_irq(dev->irq, dev);
 170
 171        sun3_reset586(); /* the hard way to stop the receiver */
 172
 173        netif_stop_queue(dev);
 174
 175        return 0;
 176}
 177
 178/**********************************************
 179 * open device
 180 */
 181static int sun3_82586_open(struct net_device *dev)
 182{
 183        int ret;
 184
 185        sun3_disint();
 186        alloc586(dev);
 187        init586(dev);
 188        startrecv586(dev);
 189        sun3_enaint();
 190
 191        ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev);
 192        if (ret)
 193        {
 194                sun3_reset586();
 195                return ret;
 196        }
 197
 198        netif_start_queue(dev);
 199
 200        return 0; /* most done by init */
 201}
 202
 203/**********************************************
 204 * Check to see if there's an 82586 out there.
 205 */
 206static int check586(struct net_device *dev,char *where,unsigned size)
 207{
 208        struct priv pb;
 209        struct priv *p = &pb;
 210        char *iscp_addr;
 211        int i;
 212
 213        p->base = (unsigned long) dvma_btov(0);
 214        p->memtop = (char *)dvma_btov((unsigned long)where);
 215        p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
 216        memset((char *)p->scp,0, sizeof(struct scp_struct));
 217        for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
 218                if(((char *)p->scp)[i])
 219                        return 0;
 220        p->scp->sysbus = SYSBUSVAL;                             /* 1 = 8Bit-Bus, 0 = 16 Bit */
 221        if(p->scp->sysbus != SYSBUSVAL)
 222                return 0;
 223
 224        iscp_addr = (char *)dvma_btov((unsigned long)where);
 225
 226        p->iscp = (struct iscp_struct *) iscp_addr;
 227        memset((char *)p->iscp,0, sizeof(struct iscp_struct));
 228
 229        p->scp->iscp = make24(p->iscp);
 230        p->iscp->busy = 1;
 231
 232        sun3_reset586();
 233        sun3_attn586();
 234        DELAY(1);       /* wait a while... */
 235
 236        if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
 237                return 0;
 238
 239        return 1;
 240}
 241
 242/******************************************************************
 243 * set iscp at the right place, called by sun3_82586_probe1 and open586.
 244 */
 245static void alloc586(struct net_device *dev)
 246{
 247        struct priv *p = netdev_priv(dev);
 248
 249        sun3_reset586();
 250        DELAY(1);
 251
 252        p->scp  = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
 253        p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start);
 254        p->scb  = (struct scb_struct *)  ((char *)p->iscp + sizeof(struct iscp_struct));
 255
 256        memset((char *) p->iscp,0,sizeof(struct iscp_struct));
 257        memset((char *) p->scp ,0,sizeof(struct scp_struct));
 258
 259        p->scp->iscp = make24(p->iscp);
 260        p->scp->sysbus = SYSBUSVAL;
 261        p->iscp->scb_offset = make16(p->scb);
 262        p->iscp->scb_base = make24(dvma_btov(dev->mem_start));
 263
 264        p->iscp->busy = 1;
 265        sun3_reset586();
 266        sun3_attn586();
 267
 268        DELAY(1);
 269
 270        if(p->iscp->busy)
 271                printk("%s: Init-Problems (alloc).\n",dev->name);
 272
 273        p->reseted = 0;
 274
 275        memset((char *)p->scb,0,sizeof(struct scb_struct));
 276}
 277
 278struct net_device * __init sun3_82586_probe(int unit)
 279{
 280        struct net_device *dev;
 281        unsigned long ioaddr;
 282        static int found = 0;
 283        int err = -ENOMEM;
 284
 285        /* check that this machine has an onboard 82586 */
 286        switch(idprom->id_machtype) {
 287        case SM_SUN3|SM_3_160:
 288        case SM_SUN3|SM_3_260:
 289                /* these machines have 82586 */
 290                break;
 291
 292        default:
 293                return ERR_PTR(-ENODEV);
 294        }
 295
 296        if (found)
 297                return ERR_PTR(-ENODEV);
 298
 299        ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
 300        if (!ioaddr)
 301                return ERR_PTR(-ENOMEM);
 302        found = 1;
 303
 304        dev = alloc_etherdev(sizeof(struct priv));
 305        if (!dev)
 306                goto out;
 307        if (unit >= 0) {
 308                sprintf(dev->name, "eth%d", unit);
 309                netdev_boot_setup_check(dev);
 310        }
 311
 312        dev->irq = IE_IRQ;
 313        dev->base_addr = ioaddr;
 314        err = sun3_82586_probe1(dev, ioaddr);
 315        if (err)
 316                goto out1;
 317        err = register_netdev(dev);
 318        if (err)
 319                goto out2;
 320        return dev;
 321
 322out2:
 323        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 324out1:
 325        free_netdev(dev);
 326out:
 327        iounmap((void __iomem *)ioaddr);
 328        return ERR_PTR(err);
 329}
 330
 331static const struct net_device_ops sun3_82586_netdev_ops = {
 332        .ndo_open               = sun3_82586_open,
 333        .ndo_stop               = sun3_82586_close,
 334        .ndo_start_xmit         = sun3_82586_send_packet,
 335        .ndo_set_rx_mode        = set_multicast_list,
 336        .ndo_tx_timeout         = sun3_82586_timeout,
 337        .ndo_get_stats          = sun3_82586_get_stats,
 338        .ndo_validate_addr      = eth_validate_addr,
 339        .ndo_set_mac_address    = eth_mac_addr,
 340        .ndo_change_mtu         = eth_change_mtu,
 341};
 342
 343static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
 344{
 345        int i, size, retval;
 346
 347        if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
 348                return -EBUSY;
 349
 350        /* copy in the ethernet address from the prom */
 351        for(i = 0; i < 6 ; i++)
 352             dev->dev_addr[i] = idprom->id_ethaddr[i];
 353
 354        printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
 355
 356        /*
 357         * check (or search) IO-Memory, 32K
 358         */
 359        size = 0x8000;
 360
 361        dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
 362        dev->mem_end = dev->mem_start + size;
 363
 364        if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
 365                printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
 366                retval = -ENODEV;
 367                goto out;
 368        }
 369        if(!check586(dev,(char *) dev->mem_start,size)) {
 370                printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
 371                retval = -ENODEV;
 372                goto out;
 373        }
 374
 375        ((struct priv *)netdev_priv(dev))->memtop =
 376                                        (char *)dvma_btov(dev->mem_start);
 377        ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
 378        alloc586(dev);
 379
 380        /* set number of receive-buffs according to memsize */
 381        if(size == 0x2000)
 382                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 383                                                        NUM_RECV_BUFFS_8;
 384        else if(size == 0x4000)
 385                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 386                                                        NUM_RECV_BUFFS_16;
 387        else
 388                ((struct priv *)netdev_priv(dev))->num_recv_buffs =
 389                                                        NUM_RECV_BUFFS_32;
 390
 391        printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
 392
 393        dev->netdev_ops         = &sun3_82586_netdev_ops;
 394        dev->watchdog_timeo     = HZ/20;
 395
 396        dev->if_port            = 0;
 397        return 0;
 398out:
 399        release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
 400        return retval;
 401}
 402
 403
 404static int init586(struct net_device *dev)
 405{
 406        void *ptr;
 407        int i,result=0;
 408        struct priv *p = netdev_priv(dev);
 409        volatile struct configure_cmd_struct    *cfg_cmd;
 410        volatile struct iasetup_cmd_struct *ias_cmd;
 411        volatile struct tdr_cmd_struct *tdr_cmd;
 412        volatile struct mcsetup_cmd_struct *mc_cmd;
 413        struct netdev_hw_addr *ha;
 414        int num_addrs=netdev_mc_count(dev);
 415
 416        ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct));
 417
 418        cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */
 419        cfg_cmd->cmd_status     = 0;
 420        cfg_cmd->cmd_cmd        = swab16(CMD_CONFIGURE | CMD_LAST);
 421        cfg_cmd->cmd_link       = 0xffff;
 422
 423        cfg_cmd->byte_cnt       = 0x0a; /* number of cfg bytes */
 424        cfg_cmd->fifo           = fifo; /* fifo-limit (8=tx:32/rx:64) */
 425        cfg_cmd->sav_bf         = 0x40; /* hold or discard bad recv frames (bit 7) */
 426        cfg_cmd->adr_len        = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
 427        cfg_cmd->priority       = 0x00;
 428        cfg_cmd->ifs            = 0x60;
 429        cfg_cmd->time_low       = 0x00;
 430        cfg_cmd->time_high      = 0xf2;
 431        cfg_cmd->promisc        = 0;
 432        if(dev->flags & IFF_ALLMULTI) {
 433                int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
 434                if(num_addrs > len)     {
 435                        printk("%s: switching to promisc. mode\n",dev->name);
 436                        cfg_cmd->promisc = 1;
 437                }
 438        }
 439        if(dev->flags&IFF_PROMISC)
 440                cfg_cmd->promisc = 1;
 441        cfg_cmd->carr_coll      = 0x00;
 442
 443        p->scb->cbl_offset      = make16(cfg_cmd);
 444        p->scb->cmd_ruc         = 0;
 445
 446        p->scb->cmd_cuc         = CUC_START; /* cmd.-unit start */
 447        sun3_attn586();
 448
 449        WAIT_4_STAT_COMPL(cfg_cmd);
 450
 451        if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
 452        {
 453                printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
 454                return 1;
 455        }
 456
 457        /*
 458         * individual address setup
 459         */
 460
 461        ias_cmd = (struct iasetup_cmd_struct *)ptr;
 462
 463        ias_cmd->cmd_status     = 0;
 464        ias_cmd->cmd_cmd        = swab16(CMD_IASETUP | CMD_LAST);
 465        ias_cmd->cmd_link       = 0xffff;
 466
 467        memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN);
 468
 469        p->scb->cbl_offset = make16(ias_cmd);
 470
 471        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 472        sun3_attn586();
 473
 474        WAIT_4_STAT_COMPL(ias_cmd);
 475
 476        if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
 477                printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
 478                return 1;
 479        }
 480
 481        /*
 482         * TDR, wire check .. e.g. no resistor e.t.c
 483         */
 484
 485        tdr_cmd = (struct tdr_cmd_struct *)ptr;
 486
 487        tdr_cmd->cmd_status     = 0;
 488        tdr_cmd->cmd_cmd        = swab16(CMD_TDR | CMD_LAST);
 489        tdr_cmd->cmd_link       = 0xffff;
 490        tdr_cmd->status         = 0;
 491
 492        p->scb->cbl_offset = make16(tdr_cmd);
 493        p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
 494        sun3_attn586();
 495
 496        WAIT_4_STAT_COMPL(tdr_cmd);
 497
 498        if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
 499        {
 500                printk("%s: Problems while running the TDR.\n",dev->name);
 501        }
 502        else
 503        {
 504                DELAY_16(); /* wait for result */
 505                result = swab16(tdr_cmd->status);
 506
 507                p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 508                sun3_attn586(); /* ack the interrupts */
 509
 510                if(result & TDR_LNK_OK)
 511                        ;
 512                else if(result & TDR_XCVR_PRB)
 513                        printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
 514                else if(result & TDR_ET_OPN)
 515                        printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 516                else if(result & TDR_ET_SRT)
 517                {
 518                        if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
 519                                printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
 520                }
 521                else
 522                        printk("%s: TDR: Unknown status %04x\n",dev->name,result);
 523        }
 524
 525        /*
 526         * Multicast setup
 527         */
 528        if(num_addrs && !(dev->flags & IFF_PROMISC) )
 529        {
 530                mc_cmd = (struct mcsetup_cmd_struct *) ptr;
 531                mc_cmd->cmd_status = 0;
 532                mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
 533                mc_cmd->cmd_link = 0xffff;
 534                mc_cmd->mc_cnt = swab16(num_addrs * 6);
 535
 536                i = 0;
 537                netdev_for_each_mc_addr(ha, dev)
 538                        memcpy((char *) mc_cmd->mc_list[i++],
 539                               ha->addr, ETH_ALEN);
 540
 541                p->scb->cbl_offset = make16(mc_cmd);
 542                p->scb->cmd_cuc = CUC_START;
 543                sun3_attn586();
 544
 545                WAIT_4_STAT_COMPL(mc_cmd);
 546
 547                if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
 548                        printk("%s: Can't apply multicast-address-list.\n",dev->name);
 549        }
 550
 551        /*
 552         * alloc nop/xmit-cmds
 553         */
 554#if (NUM_XMIT_BUFFS == 1)
 555        for(i=0;i<2;i++)
 556        {
 557                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 558                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 559                p->nop_cmds[i]->cmd_status      = 0;
 560                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 561                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 562        }
 563#else
 564        for(i=0;i<NUM_XMIT_BUFFS;i++)
 565        {
 566                p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
 567                p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
 568                p->nop_cmds[i]->cmd_status      = 0;
 569                p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
 570                ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
 571        }
 572#endif
 573
 574        ptr = alloc_rfa(dev,ptr); /* init receive-frame-area */
 575
 576        /*
 577         * alloc xmit-buffs / init xmit_cmds
 578         */
 579        for(i=0;i<NUM_XMIT_BUFFS;i++)
 580        {
 581                p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
 582                ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
 583                p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
 584                ptr = (char *) ptr + XMIT_BUFF_SIZE;
 585                p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
 586                ptr = (char *) ptr + sizeof(struct tbd_struct);
 587                if(ptr > (void *)dev->mem_end)
 588                {
 589                        printk("%s: not enough shared-mem for your configuration!\n",dev->name);
 590                        return 1;
 591                }
 592                memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
 593                memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
 594                p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
 595                p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
 596                p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
 597                p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
 598                p->xmit_buffs[i]->next = 0xffff;
 599                p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
 600        }
 601
 602        p->xmit_count = 0;
 603        p->xmit_last    = 0;
 604#ifndef NO_NOPCOMMANDS
 605        p->nop_point    = 0;
 606#endif
 607
 608         /*
 609                * 'start transmitter'
 610                */
 611#ifndef NO_NOPCOMMANDS
 612        p->scb->cbl_offset = make16(p->nop_cmds[0]);
 613        p->scb->cmd_cuc = CUC_START;
 614        sun3_attn586();
 615        WAIT_4_SCB_CMD();
 616#else
 617        p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
 618        p->xmit_cmds[0]->cmd_cmd        = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
 619#endif
 620
 621        /*
 622         * ack. interrupts
 623         */
 624        p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
 625        sun3_attn586();
 626        DELAY_16();
 627
 628        sun3_enaint();
 629        sun3_active();
 630
 631        return 0;
 632}
 633
 634/******************************************************
 635 * This is a helper routine for sun3_82586_rnr_int() and init586().
 636 * It sets up the Receive Frame Area (RFA).
 637 */
 638
 639static void *alloc_rfa(struct net_device *dev,void *ptr)
 640{
 641        volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
 642        volatile struct rbd_struct *rbd;
 643        int i;
 644        struct priv *p = netdev_priv(dev);
 645
 646        memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
 647        p->rfd_first = rfd;
 648
 649        for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
 650                rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
 651                rfd[i].rbd_offset = 0xffff;
 652        }
 653        rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;         /* RU suspend */
 654
 655        ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
 656
 657        rbd = (struct rbd_struct *) ptr;
 658        ptr = (void *) (rbd + p->num_recv_buffs);
 659
 660         /* clr descriptors */
 661        memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));
 662
 663        for(i=0;i<p->num_recv_buffs;i++)
 664        {
 665                rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
 666                rbd[i].size = swab16(RECV_BUFF_SIZE);
 667                rbd[i].buffer = make24(ptr);
 668                ptr = (char *) ptr + RECV_BUFF_SIZE;
 669        }
 670
 671        p->rfd_top      = p->rfd_first;
 672        p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);
 673
 674        p->scb->rfa_offset              = make16(p->rfd_first);
 675        p->rfd_first->rbd_offset        = make16(rbd);
 676
 677        return ptr;
 678}
 679
 680
 681/**************************************************
 682 * Interrupt Handler ...
 683 */
 684
 685static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
 686{
 687        struct net_device *dev = dev_id;
 688        unsigned short stat;
 689        int cnt=0;
 690        struct priv *p;
 691
 692        if (!dev) {
 693                printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
 694                return IRQ_NONE;
 695        }
 696        p = netdev_priv(dev);
 697
 698        if(debuglevel > 1)
 699                printk("I");
 700
 701        WAIT_4_SCB_CMD(); /* wait for last command      */
 702
 703        while((stat=p->scb->cus & STAT_MASK))
 704        {
 705                p->scb->cmd_cuc = stat;
 706                sun3_attn586();
 707
 708                if(stat & STAT_FR)       /* received a frame */
 709                        sun3_82586_rcv_int(dev);
 710
 711                if(stat & STAT_RNR) /* RU went 'not ready' */
 712                {
 713                        printk("(R)");
 714                        if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
 715                        {
 716                                WAIT_4_SCB_CMD();
 717                                p->scb->cmd_ruc = RUC_RESUME;
 718                                sun3_attn586();
 719                                WAIT_4_SCB_CMD_RUC();
 720                        }
 721                        else
 722                        {
 723                                printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
 724                                sun3_82586_rnr_int(dev);
 725                        }
 726                }
 727
 728                if(stat & STAT_CX)              /* command with I-bit set complete */
 729                         sun3_82586_xmt_int(dev);
 730
 731#ifndef NO_NOPCOMMANDS
 732                if(stat & STAT_CNA)     /* CU went 'not ready' */
 733                {
 734                        if(netif_running(dev))
 735                                printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
 736                }
 737#endif
 738
 739                if(debuglevel > 1)
 740                        printk("%d",cnt++);
 741
 742                WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
 743                if(p->scb->cmd_cuc)      /* timed out? */
 744                {
 745                        printk("%s: Acknowledge timed out.\n",dev->name);
 746                        sun3_disint();
 747                        break;
 748                }
 749        }
 750
 751        if(debuglevel > 1)
 752                printk("i");
 753        return IRQ_HANDLED;
 754}
 755
 756/*******************************************************
 757 * receive-interrupt
 758 */
 759
 760static void sun3_82586_rcv_int(struct net_device *dev)
 761{
 762        int status,cnt=0;
 763        unsigned short totlen;
 764        struct sk_buff *skb;
 765        struct rbd_struct *rbd;
 766        struct priv *p = netdev_priv(dev);
 767
 768        if(debuglevel > 0)
 769                printk("R");
 770
 771        for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
 772        {
 773                        rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
 774
 775                        if(status & RFD_OK) /* frame received without error? */
 776                        {
 777                                if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
 778                                {
 779                                        totlen &= RBD_MASK; /* length of this frame */
 780                                        rbd->status = 0;
 781                                        skb = netdev_alloc_skb(dev, totlen + 2);
 782                                        if(skb != NULL)
 783                                        {
 784                                                skb_reserve(skb,2);
 785                                                skb_put(skb,totlen);
 786                                                skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
 787                                                skb->protocol=eth_type_trans(skb,dev);
 788                                                netif_rx(skb);
 789                                                dev->stats.rx_packets++;
 790                                        }
 791                                        else
 792                                                dev->stats.rx_dropped++;
 793                                }
 794                                else
 795                                {
 796                                        int rstat;
 797                                                 /* free all RBD's until RBD_LAST is set */
 798                                        totlen = 0;
 799                                        while(!((rstat=swab16(rbd->status)) & RBD_LAST))
 800                                        {
 801                                                totlen += rstat & RBD_MASK;
 802                                                if(!rstat)
 803                                                {
 804                                                        printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
 805                                                        break;
 806                                                }
 807                                                rbd->status = 0;
 808                                                rbd = (struct rbd_struct *) make32(rbd->next);
 809                                        }
 810                                        totlen += rstat & RBD_MASK;
 811                                        rbd->status = 0;
 812                                        printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
 813                                        dev->stats.rx_dropped++;
 814                         }
 815                }
 816                else /* frame !(ok), only with 'save-bad-frames' */
 817                {
 818                        printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
 819                        dev->stats.rx_errors++;
 820                }
 821                p->rfd_top->stat_high = 0;
 822                p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
 823                p->rfd_top->rbd_offset = 0xffff;
 824                p->rfd_last->last = 0;                          /* delete RFD_SUSP      */
 825                p->rfd_last = p->rfd_top;
 826                p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
 827                p->scb->rfa_offset = make16(p->rfd_top);
 828
 829                if(debuglevel > 0)
 830                        printk("%d",cnt++);
 831        }
 832
 833        if(automatic_resume)
 834        {
 835                WAIT_4_SCB_CMD();
 836                p->scb->cmd_ruc = RUC_RESUME;
 837                sun3_attn586();
 838                WAIT_4_SCB_CMD_RUC();
 839        }
 840
 841#ifdef WAIT_4_BUSY
 842        {
 843                int i;
 844                for(i=0;i<1024;i++)
 845                {
 846                        if(p->rfd_top->status)
 847                                break;
 848                        DELAY_16();
 849                        if(i == 1023)
 850                                printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
 851                }
 852        }
 853#endif
 854
 855#if 0
 856        if(!at_least_one)
 857        {
 858                int i;
 859                volatile struct rfd_struct *rfds=p->rfd_top;
 860                volatile struct rbd_struct *rbds;
 861                printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
 862                for(i=0;i< (p->num_recv_buffs+4);i++)
 863                {
 864                        rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
 865                        printk("%04x:%04x ",rfds->status,rbds->status);
 866                        rfds = (struct rfd_struct *) make32(rfds->next);
 867                }
 868                printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
 869                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);
 870        }
 871        old_at_least = at_least_one;
 872#endif
 873
 874        if(debuglevel > 0)
 875                printk("r");
 876}
 877
 878/**********************************************************
 879 * handle 'Receiver went not ready'.
 880 */
 881
 882static void sun3_82586_rnr_int(struct net_device *dev)
 883{
 884        struct priv *p = netdev_priv(dev);
 885
 886        dev->stats.rx_errors++;
 887
 888        WAIT_4_SCB_CMD();               /* wait for the last cmd, WAIT_4_FULLSTAT?? */
 889        p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
 890        sun3_attn586();
 891        WAIT_4_SCB_CMD_RUC();           /* wait for accept cmd. */
 892
 893        alloc_rfa(dev,(char *)p->rfd_first);
 894/* maybe add a check here, before restarting the RU */
 895        startrecv586(dev); /* restart RU */
 896
 897        printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
 898
 899}
 900
 901/**********************************************************
 902 * handle xmit - interrupt
 903 */
 904
 905static void sun3_82586_xmt_int(struct net_device *dev)
 906{
 907        int status;
 908        struct priv *p = netdev_priv(dev);
 909
 910        if(debuglevel > 0)
 911                printk("X");
 912
 913        status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
 914        if(!(status & STAT_COMPL))
 915                printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);
 916
 917        if(status & STAT_OK)
 918        {
 919                dev->stats.tx_packets++;
 920                dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
 921        }
 922        else
 923        {
 924                dev->stats.tx_errors++;
 925                if(status & TCMD_LATECOLL) {
 926                        printk("%s: late collision detected.\n",dev->name);
 927                        dev->stats.collisions++;
 928                }
 929                else if(status & TCMD_NOCARRIER) {
 930                        dev->stats.tx_carrier_errors++;
 931                        printk("%s: no carrier detected.\n",dev->name);
 932                }
 933                else if(status & TCMD_LOSTCTS)
 934                        printk("%s: loss of CTS detected.\n",dev->name);
 935                else if(status & TCMD_UNDERRUN) {
 936                        dev->stats.tx_fifo_errors++;
 937                        printk("%s: DMA underrun detected.\n",dev->name);
 938                }
 939                else if(status & TCMD_MAXCOLL) {
 940                        printk("%s: Max. collisions exceeded.\n",dev->name);
 941                        dev->stats.collisions += 16;
 942                }
 943        }
 944
 945#if (NUM_XMIT_BUFFS > 1)
 946        if( (++p->xmit_last) == NUM_XMIT_BUFFS)
 947                p->xmit_last = 0;
 948#endif
 949        netif_wake_queue(dev);
 950}
 951
 952/***********************************************************
 953 * (re)start the receiver
 954 */
 955
 956static void startrecv586(struct net_device *dev)
 957{
 958        struct priv *p = netdev_priv(dev);
 959
 960        WAIT_4_SCB_CMD();
 961        WAIT_4_SCB_CMD_RUC();
 962        p->scb->rfa_offset = make16(p->rfd_first);
 963        p->scb->cmd_ruc = RUC_START;
 964        sun3_attn586();         /* start cmd. */
 965        WAIT_4_SCB_CMD_RUC();   /* wait for accept cmd. (no timeout!!) */
 966}
 967
 968static void sun3_82586_timeout(struct net_device *dev)
 969{
 970        struct priv *p = netdev_priv(dev);
 971#ifndef NO_NOPCOMMANDS
 972        if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
 973        {
 974                netif_wake_queue(dev);
 975#ifdef DEBUG
 976                printk("%s: strange ... timeout with CU active?!?\n",dev->name);
 977                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);
 978#endif
 979                p->scb->cmd_cuc = CUC_ABORT;
 980                sun3_attn586();
 981                WAIT_4_SCB_CMD();
 982                p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
 983                p->scb->cmd_cuc = CUC_START;
 984                sun3_attn586();
 985                WAIT_4_SCB_CMD();
 986                netif_trans_update(dev); /* prevent tx timeout */
 987                return 0;
 988        }
 989#endif
 990        {
 991#ifdef DEBUG
 992                printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
 993                printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
 994                printk("%s: check, whether you set the right interrupt number!\n",dev->name);
 995#endif
 996                sun3_82586_close(dev);
 997                sun3_82586_open(dev);
 998        }
 999        netif_trans_update(dev); /* prevent tx timeout */
1000}
1001
1002/******************************************************
1003 * send frame
1004 */
1005
1006static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
1007{
1008        int len,i;
1009#ifndef NO_NOPCOMMANDS
1010        int next_nop;
1011#endif
1012        struct priv *p = netdev_priv(dev);
1013
1014        if(skb->len > XMIT_BUFF_SIZE)
1015        {
1016                printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
1017                return NETDEV_TX_OK;
1018        }
1019
1020        netif_stop_queue(dev);
1021
1022#if(NUM_XMIT_BUFFS > 1)
1023        if(test_and_set_bit(0,(void *) &p->lock)) {
1024                printk("%s: Queue was locked\n",dev->name);
1025                return NETDEV_TX_BUSY;
1026        }
1027        else
1028#endif
1029        {
1030                len = skb->len;
1031                if (len < ETH_ZLEN) {
1032                        memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
1033                               ETH_ZLEN);
1034                        len = ETH_ZLEN;
1035                }
1036                skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
1037
1038#if (NUM_XMIT_BUFFS == 1)
1039#       ifdef NO_NOPCOMMANDS
1040
1041#ifdef DEBUG
1042                if(p->scb->cus & CU_ACTIVE)
1043                {
1044                        printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
1045                        printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
1046                }
1047#endif
1048
1049                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1050                for(i=0;i<16;i++)
1051                {
1052                        p->xmit_cmds[0]->cmd_status = 0;
1053                        WAIT_4_SCB_CMD();
1054                        if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
1055                                p->scb->cmd_cuc = CUC_RESUME;
1056                        else
1057                        {
1058                                p->scb->cbl_offset = make16(p->xmit_cmds[0]);
1059                                p->scb->cmd_cuc = CUC_START;
1060                        }
1061
1062                        sun3_attn586();
1063                        if(!i)
1064                                dev_kfree_skb(skb);
1065                        WAIT_4_SCB_CMD();
1066                        if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
1067                                break;
1068                        if(p->xmit_cmds[0]->cmd_status)
1069                                break;
1070                        if(i==15)
1071                                printk("%s: Can't start transmit-command.\n",dev->name);
1072                }
1073#       else
1074                next_nop = (p->nop_point + 1) & 0x1;
1075                p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1076
1077                p->xmit_cmds[0]->cmd_link        = p->nop_cmds[next_nop]->cmd_link
1078                        = make16((p->nop_cmds[next_nop]));
1079                p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
1080
1081                p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
1082                p->nop_point = next_nop;
1083                dev_kfree_skb(skb);
1084#       endif
1085#else
1086                p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
1087                if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
1088                        next_nop = 0;
1089
1090                p->xmit_cmds[p->xmit_count]->cmd_status = 0;
1091                /* linkpointer of xmit-command already points to next nop cmd */
1092                p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
1093                p->nop_cmds[next_nop]->cmd_status = 0;
1094
1095                p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
1096                p->xmit_count = next_nop;
1097
1098                {
1099                        unsigned long flags;
1100                        local_irq_save(flags);
1101                        if(p->xmit_count != p->xmit_last)
1102                                netif_wake_queue(dev);
1103                        p->lock = 0;
1104                        local_irq_restore(flags);
1105                }
1106                dev_kfree_skb(skb);
1107#endif
1108        }
1109        return NETDEV_TX_OK;
1110}
1111
1112/*******************************************
1113 * Someone wanna have the statistics
1114 */
1115
1116static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
1117{
1118        struct priv *p = netdev_priv(dev);
1119        unsigned short crc,aln,rsc,ovrn;
1120
1121        crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
1122        p->scb->crc_errs = 0;
1123        aln = swab16(p->scb->aln_errs);
1124        p->scb->aln_errs = 0;
1125        rsc = swab16(p->scb->rsc_errs);
1126        p->scb->rsc_errs = 0;
1127        ovrn = swab16(p->scb->ovrn_errs);
1128        p->scb->ovrn_errs = 0;
1129
1130        dev->stats.rx_crc_errors += crc;
1131        dev->stats.rx_fifo_errors += ovrn;
1132        dev->stats.rx_frame_errors += aln;
1133        dev->stats.rx_dropped += rsc;
1134
1135        return &dev->stats;
1136}
1137
1138/********************************************************
1139 * Set MC list ..
1140 */
1141
1142static void set_multicast_list(struct net_device *dev)
1143{
1144        netif_stop_queue(dev);
1145        sun3_disint();
1146        alloc586(dev);
1147        init586(dev);
1148        startrecv586(dev);
1149        sun3_enaint();
1150        netif_wake_queue(dev);
1151}
1152
1153#if 0
1154/*
1155 * DUMP .. we expect a not running CMD unit and enough space
1156 */
1157void sun3_82586_dump(struct net_device *dev,void *ptr)
1158{
1159        struct priv *p = netdev_priv(dev);
1160        struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
1161        int i;
1162
1163        p->scb->cmd_cuc = CUC_ABORT;
1164        sun3_attn586();
1165        WAIT_4_SCB_CMD();
1166        WAIT_4_SCB_CMD_RUC();
1167
1168        dump_cmd->cmd_status = 0;
1169        dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
1170        dump_cmd->dump_offset = make16((dump_cmd + 1));
1171        dump_cmd->cmd_link = 0xffff;
1172
1173        p->scb->cbl_offset = make16(dump_cmd);
1174        p->scb->cmd_cuc = CUC_START;
1175        sun3_attn586();
1176        WAIT_4_STAT_COMPL(dump_cmd);
1177
1178        if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
1179                                printk("%s: Can't get dump information.\n",dev->name);
1180
1181        for(i=0;i<170;i++) {
1182                printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
1183                if(i % 24 == 23)
1184                        printk("\n");
1185        }
1186        printk("\n");
1187}
1188#endif
1189