git.oblomov.eu Git - linux-2.6/blob - drivers/net/ni65.c

   1 /*
   2  * ni6510 (am7990 'lance' chip) driver for Linux-net-3
   3  * BETAcode v0.71 (96/09/29) for 2.0.0 (or later)
   4  * copyrights (c) 1994,1995,1996 by M.Hipp
   5  *
   6  * This driver can handle the old ni6510 board and the newer ni6510
   7  * EtherBlaster. (probably it also works with every full NE2100
   8  * compatible card)
   9  *
  10  * driver probes: io: 0x360,0x300,0x320,0x340 / dma: 3,5,6,7
  11  *
  12  * This is an extension to the Linux operating system, and is covered by the
  13  * same GNU General Public License that covers the Linux-kernel.
  14  *
  15  * comments/bugs/suggestions can be sent to:
  16  *   Michael Hipp
  17  *   email: hippm@informatik.uni-tuebingen.de
  18  *
  19  * sources:
  20  *   some things are from the 'ni6510-packet-driver for dos by Russ Nelson'
  21  *   and from the original drivers by D.Becker
  22  *
  23  * known problems:
  24  *   - on some PCI boards (including my own) the card/board/ISA-bridge has
  25  *     problems with bus master DMA. This results in lotsa overruns.
  26  *     It may help to '#define RCV_PARANOIA_CHECK' or try to #undef
  27  *     the XMT and RCV_VIA_SKB option .. this reduces driver performance.
  28  *     Or just play with your BIOS options to optimize ISA-DMA access.
  29  *     Maybe you also wanna play with the LOW_PERFORAMCE and MID_PERFORMANCE
  30  *     defines -> please report me your experience then
  31  *   - Harald reported for ASUS SP3G mainboards, that you should use
  32  *     the 'optimal settings' from the user's manual on page 3-12!
  33  *
  34  * credits:
  35  *   thanx to Jason Sullivan for sending me a ni6510 card!
  36  *   lot of debug runs with ASUS SP3G Boards (Intel Saturn) by Harald Koenig
  37  *
  38  * simple performance test: (486DX-33/Ni6510-EB receives from 486DX4-100/Ni6510-EB)
  39  *    average: FTP -> 8384421 bytes received in 8.5 seconds
  40  *           (no RCV_VIA_SKB,no XMT_VIA_SKB,PARANOIA_CHECK,4 XMIT BUFS, 8 RCV_BUFFS)
  41  *    peak: FTP -> 8384421 bytes received in 7.5 seconds
  42  *           (RCV_VIA_SKB,XMT_VIA_SKB,no PARANOIA_CHECK,1(!) XMIT BUF, 16 RCV BUFFS)
  43  */
  44
  45 /*
  46  * 99.Jun.8: added support for /proc/net/dev byte count for xosview (HK)
  47  * 96.Sept.29: virt_to_bus stuff added for new memory modell
  48  * 96.April.29: Added Harald Koenig's Patches (MH)
  49  * 96.April.13: enhanced error handling .. more tests (MH)
  50  * 96.April.5/6: a lot of performance tests. Got it stable now (hopefully) (MH)
  51  * 96.April.1: (no joke ;) .. added EtherBlaster and Module support (MH)
  52  * 96.Feb.19: fixed a few bugs .. cleanups .. tested for 1.3.66 (MH)
  53  *            hopefully no more 16MB limit
  54  *
  55  * 95.Nov.18: multicast tweaked (AC).
  56  *
  57  * 94.Aug.22: changes in xmit_intr (ack more than one xmitted-packet), ni65_send_packet (p->lock) (MH)
  58  *
  59  * 94.July.16: fixed bugs in recv_skb and skb-alloc stuff  (MH)
  60  */
  61
  62 #include <linux/kernel.h>
  63 #include <linux/string.h>
  64 #include <linux/errno.h>
  65 #include <linux/ioport.h>
  66 #include <linux/slab.h>
  67 #include <linux/interrupt.h>
  68 #include <linux/delay.h>
  69 #include <linux/init.h>
  70 #include <linux/netdevice.h>
  71 #include <linux/etherdevice.h>
  72 #include <linux/skbuff.h>
  73 #include <linux/module.h>
  74 #include <linux/bitops.h>
  75
  76 #include <asm/io.h>
  77 #include <asm/dma.h>
  78
  79 #include "ni65.h"
  80
  81 /*
  82  * the current setting allows an acceptable performance
  83  * for 'RCV_PARANOIA_CHECK' read the 'known problems' part in
  84  * the header of this file
  85  * 'invert' the defines for max. performance. This may cause DMA problems
  86  * on some boards (e.g on my ASUS SP3G)
  87  */
  88 #undef XMT_VIA_SKB
  89 #undef RCV_VIA_SKB
  90 #define RCV_PARANOIA_CHECK
  91
  92 #define MID_PERFORMANCE
  93
  94 #if   defined( LOW_PERFORMANCE )
  95  static int isa0=7,isa1=7,csr80=0x0c10;
  96 #elif defined( MID_PERFORMANCE )
  97  static int isa0=5,isa1=5,csr80=0x2810;
  98 #else   /* high performance */
  99  static int isa0=4,isa1=4,csr80=0x0017;
 100 #endif
 101
 102 /*
 103  * a few card/vendor specific defines
 104  */
 105 #define NI65_ID0    0x00
 106 #define NI65_ID1    0x55
 107 #define NI65_EB_ID0 0x52
 108 #define NI65_EB_ID1 0x44
 109 #define NE2100_ID0  0x57
 110 #define NE2100_ID1  0x57
 111
 112 #define PORT p->cmdr_addr
 113
 114 /*
 115  * buffer configuration
 116  */
 117 #if 1
 118 #define RMDNUM 16
 119 #define RMDNUMMASK 0x80000000
 120 #else
 121 #define RMDNUM 8
 122 #define RMDNUMMASK 0x60000000 /* log2(RMDNUM)<<29 */
 123 #endif
 124
 125 #if 0
 126 #define TMDNUM 1
 127 #define TMDNUMMASK 0x00000000
 128 #else
 129 #define TMDNUM 4
 130 #define TMDNUMMASK 0x40000000 /* log2(TMDNUM)<<29 */
 131 #endif
 132
 133 /* slightly oversized */
 134 #define R_BUF_SIZE 1544
 135 #define T_BUF_SIZE 1544
 136
 137 /*
 138  * lance register defines
 139  */
 140 #define L_DATAREG 0x00
 141 #define L_ADDRREG 0x02
 142 #define L_RESET   0x04
 143 #define L_CONFIG  0x05
 144 #define L_BUSIF   0x06
 145
 146 /*
 147  * to access the lance/am7990-regs, you have to write
 148  * reg-number into L_ADDRREG, then you can access it using L_DATAREG
 149  */
 150 #define CSR0  0x00
 151 #define CSR1  0x01
 152 #define CSR2  0x02
 153 #define CSR3  0x03
 154
 155 #define INIT_RING_BEFORE_START  0x1
 156 #define FULL_RESET_ON_ERROR     0x2
 157
 158 #if 0
 159 #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);inw(PORT+L_ADDRREG); \
 160                            outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
 161 #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_ADDRREG),\
 162                        inw(PORT+L_DATAREG))
 163 #if 0
 164 #define writedatareg(val) {outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
 165 #else
 166 #define writedatareg(val) {  writereg(val,CSR0); }
 167 #endif
 168 #else
 169 #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);outw(val,PORT+L_DATAREG);}
 170 #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_DATAREG))
 171 #define writedatareg(val) { writereg(val,CSR0); }
 172 #endif
 173
 174 static unsigned char ni_vendor[] = { 0x02,0x07,0x01 };
 175
 176 static struct card {
 177         unsigned char id0,id1;
 178         short id_offset;
 179         short total_size;
 180         short cmd_offset;
 181         short addr_offset;
 182         unsigned char *vendor_id;
 183         char *cardname;
 184         unsigned long config;
 185 } cards[] = {
 186         {
 187                 .id0         = NI65_ID0,
 188                 .id1         = NI65_ID1,
 189                 .id_offset   = 0x0e,
 190                 .total_size  = 0x10,
 191                 .cmd_offset  = 0x0,
 192                 .addr_offset = 0x8,
 193                 .vendor_id   = ni_vendor,
 194                 .cardname    = "ni6510",
 195                 .config      = 0x1,
 196         },
 197         {
 198                 .id0         = NI65_EB_ID0,
 199                 .id1         = NI65_EB_ID1,
 200                 .id_offset   = 0x0e,
 201                 .total_size  = 0x18,
 202                 .cmd_offset  = 0x10,
 203                 .addr_offset = 0x0,
 204                 .vendor_id   = ni_vendor,
 205                 .cardname    = "ni6510 EtherBlaster",
 206                 .config      = 0x2,
 207         },
 208         {
 209                 .id0         = NE2100_ID0,
 210                 .id1         = NE2100_ID1,
 211                 .id_offset   = 0x0e,
 212                 .total_size  = 0x18,
 213                 .cmd_offset  = 0x10,
 214                 .addr_offset = 0x0,
 215                 .vendor_id   = NULL,
 216                 .cardname    = "generic NE2100",
 217                 .config      = 0x0,
 218         },
 219 };
 220 #define NUM_CARDS 3
 221
 222 struct priv
 223 {
 224         struct rmd rmdhead[RMDNUM];
 225         struct tmd tmdhead[TMDNUM];
 226         struct init_block ib;
 227         int rmdnum;
 228         int tmdnum,tmdlast;
 229 #ifdef RCV_VIA_SKB
 230         struct sk_buff *recv_skb[RMDNUM];
 231 #else
 232         void *recvbounce[RMDNUM];
 233 #endif
 234 #ifdef XMT_VIA_SKB
 235         struct sk_buff *tmd_skb[TMDNUM];
 236 #endif
 237         void *tmdbounce[TMDNUM];
 238         int tmdbouncenum;
 239         int lock,xmit_queued;
 240         struct net_device_stats stats;
 241         void *self;
 242         int cmdr_addr;
 243         int cardno;
 244         int features;
 245         spinlock_t ring_lock;
 246 };
 247
 248 static int  ni65_probe1(struct net_device *dev,int);
 249 static irqreturn_t ni65_interrupt(int irq, void * dev_id);
 250 static void ni65_recv_intr(struct net_device *dev,int);
 251 static void ni65_xmit_intr(struct net_device *dev,int);
 252 static int  ni65_open(struct net_device *dev);
 253 static int  ni65_lance_reinit(struct net_device *dev);
 254 static void ni65_init_lance(struct priv *p,unsigned char*,int,int);
 255 static int  ni65_send_packet(struct sk_buff *skb, struct net_device *dev);
 256 static void  ni65_timeout(struct net_device *dev);
 257 static int  ni65_close(struct net_device *dev);
 258 static int  ni65_alloc_buffer(struct net_device *dev);
 259 static void ni65_free_buffer(struct priv *p);
 260 static struct net_device_stats *ni65_get_stats(struct net_device *);
 261 static void set_multicast_list(struct net_device *dev);
 262
 263 static int irqtab[] __initdata = { 9,12,15,5 }; /* irq config-translate */
 264 static int dmatab[] __initdata = { 0,3,5,6,7 }; /* dma config-translate and autodetect */
 265
 266 static int debuglevel = 1;
 267
 268 /*
 269  * set 'performance' registers .. we must STOP lance for that
 270  */
 271 static void ni65_set_performance(struct priv *p)
 272 {
 273         writereg(CSR0_STOP | CSR0_CLRALL,CSR0); /* STOP */
 274
 275         if( !(cards[p->cardno].config & 0x02) )
 276                 return;
 277
 278         outw(80,PORT+L_ADDRREG);
 279         if(inw(PORT+L_ADDRREG) != 80)
 280                 return;
 281
 282         writereg( (csr80 & 0x3fff) ,80); /* FIFO watermarks */
 283         outw(0,PORT+L_ADDRREG);
 284         outw((short)isa0,PORT+L_BUSIF); /* write ISA 0: DMA_R : isa0 * 50ns */
 285         outw(1,PORT+L_ADDRREG);
 286         outw((short)isa1,PORT+L_BUSIF); /* write ISA 1: DMA_W : isa1 * 50ns     */
 287
 288         outw(CSR0,PORT+L_ADDRREG);      /* switch back to CSR0 */
 289 }
 290
 291 /*
 292  * open interface (up)
 293  */
 294 static int ni65_open(struct net_device *dev)
 295 {
 296         struct priv *p = dev->ml_priv;
 297         int irqval = request_irq(dev->irq, &ni65_interrupt,0,
 298                         cards[p->cardno].cardname,dev);
 299         if (irqval) {
 300                 printk(KERN_ERR "%s: unable to get IRQ %d (irqval=%d).\n",
 301                           dev->name,dev->irq, irqval);
 302                 return -EAGAIN;
 303         }
 304
 305         if(ni65_lance_reinit(dev))
 306         {
 307                 netif_start_queue(dev);
 308                 return 0;
 309         }
 310         else
 311         {
 312                 free_irq(dev->irq,dev);
 313                 return -EAGAIN;
 314         }
 315 }
 316
 317 /*
 318  * close interface (down)
 319  */
 320 static int ni65_close(struct net_device *dev)
 321 {
 322         struct priv *p = dev->ml_priv;
 323
 324         netif_stop_queue(dev);
 325
 326         outw(inw(PORT+L_RESET),PORT+L_RESET); /* that's the hard way */
 327
 328 #ifdef XMT_VIA_SKB
 329         {
 330                 int i;
 331                 for(i=0;i<TMDNUM;i++)
 332                 {
 333                         if(p->tmd_skb[i]) {
 334                                 dev_kfree_skb(p->tmd_skb[i]);
 335                                 p->tmd_skb[i] = NULL;
 336                         }
 337                 }
 338         }
 339 #endif
 340         free_irq(dev->irq,dev);
 341         return 0;
 342 }
 343
 344 static void cleanup_card(struct net_device *dev)
 345 {
 346         struct priv *p = dev->ml_priv;
 347         disable_dma(dev->dma);
 348         free_dma(dev->dma);
 349         release_region(dev->base_addr, cards[p->cardno].total_size);
 350         ni65_free_buffer(p);
 351 }
 352
 353 /* set: io,irq,dma or set it when calling insmod */
 354 static int irq;
 355 static int io;
 356 static int dma;
 357
 358 /*
 359  * Probe The Card (not the lance-chip)
 360  */
 361 struct net_device * __init ni65_probe(int unit)
 362 {
 363         struct net_device *dev = alloc_etherdev(0);
 364         static int ports[] = {0x360,0x300,0x320,0x340, 0};
 365         int *port;
 366         int err = 0;
 367
 368         if (!dev)
 369                 return ERR_PTR(-ENOMEM);
 370
 371         if (unit >= 0) {
 372                 sprintf(dev->name, "eth%d", unit);
 373                 netdev_boot_setup_check(dev);
 374                 irq = dev->irq;
 375                 dma = dev->dma;
 376         } else {
 377                 dev->base_addr = io;
 378         }
 379
 380         if (dev->base_addr > 0x1ff) { /* Check a single specified location. */
 381                 err = ni65_probe1(dev, dev->base_addr);
 382         } else if (dev->base_addr > 0) { /* Don't probe at all. */
 383                 err = -ENXIO;
 384         } else {
 385                 for (port = ports; *port && ni65_probe1(dev, *port); port++)
 386                         ;
 387                 if (!*port)
 388                         err = -ENODEV;
 389         }
 390         if (err)
 391                 goto out;
 392
 393         err = register_netdev(dev);
 394         if (err)
 395                 goto out1;
 396         return dev;
 397 out1:
 398         cleanup_card(dev);
 399 out:
 400         free_netdev(dev);
 401         return ERR_PTR(err);
 402 }
 403
 404 /*
 405  * this is the real card probe ..
 406  */
 407 static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 408 {
 409         int i,j;
 410         struct priv *p;
 411         unsigned long flags;
 412
 413         dev->irq = irq;
 414         dev->dma = dma;
 415
 416         for(i=0;i<NUM_CARDS;i++) {
 417                 if(!request_region(ioaddr, cards[i].total_size, cards[i].cardname))
 418                         continue;
 419                 if(cards[i].id_offset >= 0) {
 420                         if(inb(ioaddr+cards[i].id_offset+0) != cards[i].id0 ||
 421                                  inb(ioaddr+cards[i].id_offset+1) != cards[i].id1) {
 422                                  release_region(ioaddr, cards[i].total_size);
 423                                  continue;
 424                         }
 425                 }
 426                 if(cards[i].vendor_id) {
 427                         for(j=0;j<3;j++)
 428                                 if(inb(ioaddr+cards[i].addr_offset+j) != cards[i].vendor_id[j]) {
 429                                         release_region(ioaddr, cards[i].total_size);
 430                                         continue;
 431                           }
 432                 }
 433                 break;
 434         }
 435         if(i == NUM_CARDS)
 436                 return -ENODEV;
 437
 438         for(j=0;j<6;j++)
 439                 dev->dev_addr[j] = inb(ioaddr+cards[i].addr_offset+j);
 440
 441         if( (j=ni65_alloc_buffer(dev)) < 0) {
 442                 release_region(ioaddr, cards[i].total_size);
 443                 return j;
 444         }
 445         p = dev->ml_priv;
 446         p->cmdr_addr = ioaddr + cards[i].cmd_offset;
 447         p->cardno = i;
 448         spin_lock_init(&p->ring_lock);
 449
 450         printk(KERN_INFO "%s: %s found at %#3x, ", dev->name, cards[p->cardno].cardname , ioaddr);
 451
 452         outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 453         if( (j=readreg(CSR0)) != 0x4) {
 454                  printk("failed.\n");
 455                  printk(KERN_ERR "%s: Can't RESET card: %04x\n", dev->name, j);
 456                  ni65_free_buffer(p);
 457                  release_region(ioaddr, cards[p->cardno].total_size);
 458                  return -EAGAIN;
 459         }
 460
 461         outw(88,PORT+L_ADDRREG);
 462         if(inw(PORT+L_ADDRREG) == 88) {
 463                 unsigned long v;
 464                 v = inw(PORT+L_DATAREG);
 465                 v <<= 16;
 466                 outw(89,PORT+L_ADDRREG);
 467                 v |= inw(PORT+L_DATAREG);
 468                 printk("Version %#08lx, ",v);
 469                 p->features = INIT_RING_BEFORE_START;
 470         }
 471         else {
 472                 printk("ancient LANCE, ");
 473                 p->features = 0x0;
 474         }
 475
 476         if(test_bit(0,&cards[i].config)) {
 477                 dev->irq = irqtab[(inw(ioaddr+L_CONFIG)>>2)&3];
 478                 dev->dma = dmatab[inw(ioaddr+L_CONFIG)&3];
 479                 printk("IRQ %d (from card), DMA %d (from card).\n",dev->irq,dev->dma);
 480         }
 481         else {
 482                 if(dev->dma == 0) {
 483                 /* 'stuck test' from lance.c */
 484                         long dma_channels = ((inb(DMA1_STAT_REG) >> 4) & 0x0f) |
 485                                             (inb(DMA2_STAT_REG) & 0xf0);
 486                         for(i=1;i<5;i++) {
 487                                 int dma = dmatab[i];
 488                                 if(test_bit(dma,&dma_channels) || request_dma(dma,"ni6510"))
 489                                         continue;
 490
 491                                 flags=claim_dma_lock();
 492                                 disable_dma(dma);
 493                                 set_dma_mode(dma,DMA_MODE_CASCADE);
 494                                 enable_dma(dma);
 495                                 release_dma_lock(flags);
 496
 497                                 ni65_init_lance(p,dev->dev_addr,0,0); /* trigger memory access */
 498
 499                                 flags=claim_dma_lock();
 500                                 disable_dma(dma);
 501                                 free_dma(dma);
 502                                 release_dma_lock(flags);
 503
 504                                 if(readreg(CSR0) & CSR0_IDON)
 505                                         break;
 506                         }
 507                         if(i == 5) {
 508                                 printk("failed.\n");
 509                                 printk(KERN_ERR "%s: Can't detect DMA channel!\n", dev->name);
 510                                 ni65_free_buffer(p);
 511                                 release_region(ioaddr, cards[p->cardno].total_size);
 512                                 return -EAGAIN;
 513                         }
 514                         dev->dma = dmatab[i];
 515                         printk("DMA %d (autodetected), ",dev->dma);
 516                 }
 517                 else
 518                         printk("DMA %d (assigned), ",dev->dma);
 519
 520                 if(dev->irq < 2)
 521                 {
 522                         unsigned long irq_mask;
 523
 524                         ni65_init_lance(p,dev->dev_addr,0,0);
 525                         irq_mask = probe_irq_on();
 526                         writereg(CSR0_INIT|CSR0_INEA,CSR0); /* trigger interrupt */
 527                         msleep(20);
 528                         dev->irq = probe_irq_off(irq_mask);
 529                         if(!dev->irq)
 530                         {
 531                                 printk("Failed to detect IRQ line!\n");
 532                                 ni65_free_buffer(p);
 533                                 release_region(ioaddr, cards[p->cardno].total_size);
 534                                 return -EAGAIN;
 535                         }
 536                         printk("IRQ %d (autodetected).\n",dev->irq);
 537                 }
 538                 else
 539                         printk("IRQ %d (assigned).\n",dev->irq);
 540         }
 541
 542         if(request_dma(dev->dma, cards[p->cardno].cardname ) != 0)
 543         {
 544                 printk(KERN_ERR "%s: Can't request dma-channel %d\n",dev->name,(int) dev->dma);
 545                 ni65_free_buffer(p);
 546                 release_region(ioaddr, cards[p->cardno].total_size);
 547                 return -EAGAIN;
 548         }
 549
 550         dev->base_addr = ioaddr;
 551         dev->open               = ni65_open;
 552         dev->stop               = ni65_close;
 553         dev->hard_start_xmit    = ni65_send_packet;
 554         dev->tx_timeout         = ni65_timeout;
 555         dev->watchdog_timeo     = HZ/2;
 556         dev->get_stats          = ni65_get_stats;
 557         dev->set_multicast_list = set_multicast_list;
 558         return 0; /* everything is OK */
 559 }
 560
 561 /*
 562  * set lance register and trigger init
 563  */
 564 static void ni65_init_lance(struct priv *p,unsigned char *daddr,int filter,int mode)
 565 {
 566         int i;
 567         u32 pib;
 568
 569         writereg(CSR0_CLRALL|CSR0_STOP,CSR0);
 570
 571         for(i=0;i<6;i++)
 572                 p->ib.eaddr[i] = daddr[i];
 573
 574         for(i=0;i<8;i++)
 575                 p->ib.filter[i] = filter;
 576         p->ib.mode = mode;
 577
 578         p->ib.trp = (u32) isa_virt_to_bus(p->tmdhead) | TMDNUMMASK;
 579         p->ib.rrp = (u32) isa_virt_to_bus(p->rmdhead) | RMDNUMMASK;
 580         writereg(0,CSR3);       /* busmaster/no word-swap */
 581         pib = (u32) isa_virt_to_bus(&p->ib);
 582         writereg(pib & 0xffff,CSR1);
 583         writereg(pib >> 16,CSR2);
 584
 585         writereg(CSR0_INIT,CSR0); /* this changes L_ADDRREG to CSR0 */
 586
 587         for(i=0;i<32;i++)
 588         {
 589                 mdelay(4);
 590                 if(inw(PORT+L_DATAREG) & (CSR0_IDON | CSR0_MERR) )
 591                         break; /* init ok ? */
 592         }
 593 }
 594
 595 /*
 596  * allocate memory area and check the 16MB border
 597  */
 598 static void *ni65_alloc_mem(struct net_device *dev,char *what,int size,int type)
 599 {
 600         struct sk_buff *skb=NULL;
 601         unsigned char *ptr;
 602         void *ret;
 603
 604         if(type) {
 605                 ret = skb = alloc_skb(2+16+size,GFP_KERNEL|GFP_DMA);
 606                 if(!skb) {
 607                         printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what);
 608                         return NULL;
 609                 }
 610                 skb_reserve(skb,2+16);
 611                 skb_put(skb,R_BUF_SIZE);         /* grab the whole space .. (not necessary) */
 612                 ptr = skb->data;
 613         }
 614         else {
 615                 ret = ptr = kmalloc(T_BUF_SIZE,GFP_KERNEL | GFP_DMA);
 616                 if(!ret) {
 617                         printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what);
 618                         return NULL;
 619                 }
 620         }
 621         if( (u32) virt_to_phys(ptr+size) > 0x1000000) {
 622                 printk(KERN_WARNING "%s: unable to allocate %s memory in lower 16MB!\n",dev->name,what);
 623                 if(type)
 624                         kfree_skb(skb);
 625                 else
 626                         kfree(ptr);
 627                 return NULL;
 628         }
 629         return ret;
 630 }
 631
 632 /*
 633  * allocate all memory structures .. send/recv buffers etc ...
 634  */
 635 static int ni65_alloc_buffer(struct net_device *dev)
 636 {
 637         unsigned char *ptr;
 638         struct priv *p;
 639         int i;
 640
 641         /*
 642          * we need 8-aligned memory ..
 643          */
 644         ptr = ni65_alloc_mem(dev,"BUFFER",sizeof(struct priv)+8,0);
 645         if(!ptr)
 646                 return -ENOMEM;
 647
 648         p = dev->ml_priv = (struct priv *) (((unsigned long) ptr + 7) & ~0x7);
 649         memset((char *)p, 0, sizeof(struct priv));
 650         p->self = ptr;
 651
 652         for(i=0;i<TMDNUM;i++)
 653         {
 654 #ifdef XMT_VIA_SKB
 655                 p->tmd_skb[i] = NULL;
 656 #endif
 657                 p->tmdbounce[i] = ni65_alloc_mem(dev,"XMIT",T_BUF_SIZE,0);
 658                 if(!p->tmdbounce[i]) {
 659                         ni65_free_buffer(p);
 660                         return -ENOMEM;
 661                 }
 662         }
 663
 664         for(i=0;i<RMDNUM;i++)
 665         {
 666 #ifdef RCV_VIA_SKB
 667                 p->recv_skb[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,1);
 668                 if(!p->recv_skb[i]) {
 669                         ni65_free_buffer(p);
 670                         return -ENOMEM;
 671                 }
 672 #else
 673                 p->recvbounce[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,0);
 674                 if(!p->recvbounce[i]) {
 675                         ni65_free_buffer(p);
 676                         return -ENOMEM;
 677                 }
 678 #endif
 679         }
 680
 681         return 0; /* everything is OK */
 682 }
 683
 684 /*
 685  * free buffers and private struct
 686  */
 687 static void ni65_free_buffer(struct priv *p)
 688 {
 689         int i;
 690
 691         if(!p)
 692                 return;
 693
 694         for(i=0;i<TMDNUM;i++) {
 695                 kfree(p->tmdbounce[i]);
 696 #ifdef XMT_VIA_SKB
 697                 if(p->tmd_skb[i])
 698                         dev_kfree_skb(p->tmd_skb[i]);
 699 #endif
 700         }
 701
 702         for(i=0;i<RMDNUM;i++)
 703         {
 704 #ifdef RCV_VIA_SKB
 705                 if(p->recv_skb[i])
 706                         dev_kfree_skb(p->recv_skb[i]);
 707 #else
 708                 kfree(p->recvbounce[i]);
 709 #endif
 710         }
 711         kfree(p->self);
 712 }
 713
 714
 715 /*
 716  * stop and (re)start lance .. e.g after an error
 717  */
 718 static void ni65_stop_start(struct net_device *dev,struct priv *p)
 719 {
 720         int csr0 = CSR0_INEA;
 721
 722         writedatareg(CSR0_STOP);
 723
 724         if(debuglevel > 1)
 725                 printk(KERN_DEBUG "ni65_stop_start\n");
 726
 727         if(p->features & INIT_RING_BEFORE_START) {
 728                 int i;
 729 #ifdef XMT_VIA_SKB
 730                 struct sk_buff *skb_save[TMDNUM];
 731 #endif
 732                 unsigned long buffer[TMDNUM];
 733                 short blen[TMDNUM];
 734
 735                 if(p->xmit_queued) {
 736                         while(1) {
 737                                 if((p->tmdhead[p->tmdlast].u.s.status & XMIT_OWN))
 738                                         break;
 739                                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
 740                                 if(p->tmdlast == p->tmdnum)
 741                                         break;
 742                         }
 743                 }
 744
 745                 for(i=0;i<TMDNUM;i++) {
 746                         struct tmd *tmdp = p->tmdhead + i;
 747 #ifdef XMT_VIA_SKB
 748                         skb_save[i] = p->tmd_skb[i];
 749 #endif
 750                         buffer[i] = (u32) isa_bus_to_virt(tmdp->u.buffer);
 751                         blen[i] = tmdp->blen;
 752                         tmdp->u.s.status = 0x0;
 753                 }
 754
 755                 for(i=0;i<RMDNUM;i++) {
 756                         struct rmd *rmdp = p->rmdhead + i;
 757                         rmdp->u.s.status = RCV_OWN;
 758                 }
 759                 p->tmdnum = p->xmit_queued = 0;
 760                 writedatareg(CSR0_STRT | csr0);
 761
 762                 for(i=0;i<TMDNUM;i++) {
 763                         int num = (i + p->tmdlast) & (TMDNUM-1);
 764                         p->tmdhead[i].u.buffer = (u32) isa_virt_to_bus((char *)buffer[num]); /* status is part of buffer field */
 765                         p->tmdhead[i].blen = blen[num];
 766                         if(p->tmdhead[i].u.s.status & XMIT_OWN) {
 767                                  p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
 768                                  p->xmit_queued = 1;
 769          writedatareg(CSR0_TDMD | CSR0_INEA | csr0);
 770                         }
 771 #ifdef XMT_VIA_SKB
 772                         p->tmd_skb[i] = skb_save[num];
 773 #endif
 774                 }
 775                 p->rmdnum = p->tmdlast = 0;
 776                 if(!p->lock)
 777                         if (p->tmdnum || !p->xmit_queued)
 778                                 netif_wake_queue(dev);
 779                 dev->trans_start = jiffies;
 780         }
 781         else
 782                 writedatareg(CSR0_STRT | csr0);
 783 }
 784
 785 /*
 786  * init lance (write init-values .. init-buffers) (open-helper)
 787  */
 788 static int ni65_lance_reinit(struct net_device *dev)
 789 {
 790          int i;
 791          struct priv *p = dev->ml_priv;
 792          unsigned long flags;
 793
 794          p->lock = 0;
 795          p->xmit_queued = 0;
 796
 797          flags=claim_dma_lock();
 798          disable_dma(dev->dma); /* I've never worked with dma, but we do it like the packetdriver */
 799          set_dma_mode(dev->dma,DMA_MODE_CASCADE);
 800          enable_dma(dev->dma);
 801          release_dma_lock(flags);
 802
 803          outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 804          if( (i=readreg(CSR0) ) != 0x4)
 805          {
 806                  printk(KERN_ERR "%s: can't RESET %s card: %04x\n",dev->name,
 807                                                         cards[p->cardno].cardname,(int) i);
 808                  flags=claim_dma_lock();
 809                  disable_dma(dev->dma);
 810                  release_dma_lock(flags);
 811                  return 0;
 812          }
 813
 814          p->rmdnum = p->tmdnum = p->tmdlast = p->tmdbouncenum = 0;
 815          for(i=0;i<TMDNUM;i++)
 816          {
 817                  struct tmd *tmdp = p->tmdhead + i;
 818 #ifdef XMT_VIA_SKB
 819                  if(p->tmd_skb[i]) {
 820                          dev_kfree_skb(p->tmd_skb[i]);
 821                          p->tmd_skb[i] = NULL;
 822                  }
 823 #endif
 824                  tmdp->u.buffer = 0x0;
 825                  tmdp->u.s.status = XMIT_START | XMIT_END;
 826                  tmdp->blen = tmdp->status2 = 0;
 827          }
 828
 829          for(i=0;i<RMDNUM;i++)
 830          {
 831                  struct rmd *rmdp = p->rmdhead + i;
 832 #ifdef RCV_VIA_SKB
 833                  rmdp->u.buffer = (u32) isa_virt_to_bus(p->recv_skb[i]->data);
 834 #else
 835                  rmdp->u.buffer = (u32) isa_virt_to_bus(p->recvbounce[i]);
 836 #endif
 837                  rmdp->blen = -(R_BUF_SIZE-8);
 838                  rmdp->mlen = 0;
 839                  rmdp->u.s.status = RCV_OWN;
 840          }
 841
 842          if(dev->flags & IFF_PROMISC)
 843                  ni65_init_lance(p,dev->dev_addr,0x00,M_PROM);
 844          else if(dev->mc_count || dev->flags & IFF_ALLMULTI)
 845                  ni65_init_lance(p,dev->dev_addr,0xff,0x0);
 846          else
 847                  ni65_init_lance(p,dev->dev_addr,0x00,0x00);
 848
 849         /*
 850          * ni65_set_lance_mem() sets L_ADDRREG to CSR0
 851          * NOW, WE WILL NEVER CHANGE THE L_ADDRREG, CSR0 IS ALWAYS SELECTED
 852          */
 853
 854          if(inw(PORT+L_DATAREG) & CSR0_IDON)    {
 855                  ni65_set_performance(p);
 856                                          /* init OK: start lance , enable interrupts */
 857                  writedatareg(CSR0_CLRALL | CSR0_INEA | CSR0_STRT);
 858                  return 1; /* ->OK */
 859          }
 860          printk(KERN_ERR "%s: can't init lance, status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
 861          flags=claim_dma_lock();
 862          disable_dma(dev->dma);
 863          release_dma_lock(flags);
 864          return 0; /* ->Error */
 865 }
 866
 867 /*
 868  * interrupt handler
 869  */
 870 static irqreturn_t ni65_interrupt(int irq, void * dev_id)
 871 {
 872         int csr0 = 0;
 873         struct net_device *dev = dev_id;
 874         struct priv *p;
 875         int bcnt = 32;
 876
 877         p = dev->ml_priv;
 878
 879         spin_lock(&p->ring_lock);
 880
 881         while(--bcnt) {
 882                 csr0 = inw(PORT+L_DATAREG);
 883
 884 #if 0
 885                 writedatareg( (csr0 & CSR0_CLRALL) ); /* ack interrupts, disable int. */
 886 #else
 887                 writedatareg( (csr0 & CSR0_CLRALL) | CSR0_INEA ); /* ack interrupts, interrupts enabled */
 888 #endif
 889
 890                 if(!(csr0 & (CSR0_ERR | CSR0_RINT | CSR0_TINT)))
 891                         break;
 892
 893                 if(csr0 & CSR0_RINT) /* RECV-int? */
 894                         ni65_recv_intr(dev,csr0);
 895                 if(csr0 & CSR0_TINT) /* XMIT-int? */
 896                         ni65_xmit_intr(dev,csr0);
 897
 898                 if(csr0 & CSR0_ERR)
 899                 {
 900                         struct priv *p = dev->ml_priv;
 901                         if(debuglevel > 1)
 902                                 printk(KERN_ERR "%s: general error: %04x.\n",dev->name,csr0);
 903                         if(csr0 & CSR0_BABL)
 904                                 p->stats.tx_errors++;
 905                         if(csr0 & CSR0_MISS) {
 906                                 int i;
 907                                 for(i=0;i<RMDNUM;i++)
 908                                         printk("%02x ",p->rmdhead[i].u.s.status);
 909                                 printk("\n");
 910                                 p->stats.rx_errors++;
 911                         }
 912                         if(csr0 & CSR0_MERR) {
 913                                 if(debuglevel > 1)
 914                                         printk(KERN_ERR "%s: Ooops .. memory error: %04x.\n",dev->name,csr0);
 915                                 ni65_stop_start(dev,p);
 916                         }
 917                 }
 918         }
 919
 920 #ifdef RCV_PARANOIA_CHECK
 921 {
 922  int j;
 923  for(j=0;j<RMDNUM;j++)
 924  {
 925         struct priv *p = dev->ml_priv;
 926         int i,k,num1,num2;
 927         for(i=RMDNUM-1;i>0;i--) {
 928                  num2 = (p->rmdnum + i) & (RMDNUM-1);
 929                  if(!(p->rmdhead[num2].u.s.status & RCV_OWN))
 930                                 break;
 931         }
 932
 933         if(i) {
 934                 for(k=0;k<RMDNUM;k++) {
 935                         num1 = (p->rmdnum + k) & (RMDNUM-1);
 936                         if(!(p->rmdhead[num1].u.s.status & RCV_OWN))
 937                                 break;
 938                 }
 939                 if(!k)
 940                         break;
 941
 942                 if(debuglevel > 0)
 943                 {
 944                         char buf[256],*buf1;
 945                         int k;
 946                         buf1 = buf;
 947                         for(k=0;k<RMDNUM;k++) {
 948                                 sprintf(buf1,"%02x ",(p->rmdhead[k].u.s.status)); /* & RCV_OWN) ); */
 949                                 buf1 += 3;
 950                         }
 951                         *buf1 = 0;
 952                         printk(KERN_ERR "%s: Ooops, receive ring corrupted %2d %2d | %s\n",dev->name,p->rmdnum,i,buf);
 953                 }
 954
 955                 p->rmdnum = num1;
 956                 ni65_recv_intr(dev,csr0);
 957                 if((p->rmdhead[num2].u.s.status & RCV_OWN))
 958                         break;  /* ok, we are 'in sync' again */
 959         }
 960         else
 961                 break;
 962  }
 963 }
 964 #endif
 965
 966         if( (csr0 & (CSR0_RXON | CSR0_TXON)) != (CSR0_RXON | CSR0_TXON) ) {
 967                 printk(KERN_DEBUG "%s: RX or TX was offline -> restart\n",dev->name);
 968                 ni65_stop_start(dev,p);
 969         }
 970         else
 971                 writedatareg(CSR0_INEA);
 972
 973         spin_unlock(&p->ring_lock);
 974         return IRQ_HANDLED;
 975 }
 976
 977 /*
 978  * We have received an Xmit-Interrupt ..
 979  * send a new packet if necessary
 980  */
 981 static void ni65_xmit_intr(struct net_device *dev,int csr0)
 982 {
 983         struct priv *p = dev->ml_priv;
 984
 985         while(p->xmit_queued)
 986         {
 987                 struct tmd *tmdp = p->tmdhead + p->tmdlast;
 988                 int tmdstat = tmdp->u.s.status;
 989
 990                 if(tmdstat & XMIT_OWN)
 991                         break;
 992
 993                 if(tmdstat & XMIT_ERR)
 994                 {
 995 #if 0
 996                         if(tmdp->status2 & XMIT_TDRMASK && debuglevel > 3)
 997                                 printk(KERN_ERR "%s: tdr-problems (e.g. no resistor)\n",dev->name);
 998 #endif
 999                  /* checking some errors */
1000                         if(tmdp->status2 & XMIT_RTRY)
1001                                 p->stats.tx_aborted_errors++;
1002                         if(tmdp->status2 & XMIT_LCAR)
1003                                 p->stats.tx_carrier_errors++;
1004                         if(tmdp->status2 & (XMIT_BUFF | XMIT_UFLO )) {
1005                 /* this stops the xmitter */
1006                                 p->stats.tx_fifo_errors++;
1007                                 if(debuglevel > 0)
1008                                         printk(KERN_ERR "%s: Xmit FIFO/BUFF error\n",dev->name);
1009                                 if(p->features & INIT_RING_BEFORE_START) {
1010                                         tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;    /* test: resend this frame */
1011                                         ni65_stop_start(dev,p);
1012                                         break;  /* no more Xmit processing .. */
1013                                 }
1014                                 else
1015                                  ni65_stop_start(dev,p);
1016                         }
1017                         if(debuglevel > 2)
1018                                 printk(KERN_ERR "%s: xmit-error: %04x %02x-%04x\n",dev->name,csr0,(int) tmdstat,(int) tmdp->status2);
1019                         if(!(csr0 & CSR0_BABL)) /* don't count errors twice */
1020                                 p->stats.tx_errors++;
1021                         tmdp->status2 = 0;
1022                 }
1023                 else {
1024                         p->stats.tx_bytes -= (short)(tmdp->blen);
1025                         p->stats.tx_packets++;
1026                 }
1027
1028 #ifdef XMT_VIA_SKB
1029                 if(p->tmd_skb[p->tmdlast]) {
1030                          dev_kfree_skb_irq(p->tmd_skb[p->tmdlast]);
1031                          p->tmd_skb[p->tmdlast] = NULL;
1032                 }
1033 #endif
1034
1035                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
1036                 if(p->tmdlast == p->tmdnum)
1037                         p->xmit_queued = 0;
1038         }
1039         netif_wake_queue(dev);
1040 }
1041
1042 /*
1043  * We have received a packet
1044  */
1045 static void ni65_recv_intr(struct net_device *dev,int csr0)
1046 {
1047         struct rmd *rmdp;
1048         int rmdstat,len;
1049         int cnt=0;
1050         struct priv *p = dev->ml_priv;
1051
1052         rmdp = p->rmdhead + p->rmdnum;
1053         while(!( (rmdstat = rmdp->u.s.status) & RCV_OWN))
1054         {
1055                 cnt++;
1056                 if( (rmdstat & (RCV_START | RCV_END | RCV_ERR)) != (RCV_START | RCV_END) ) /* error or oversized? */
1057                 {
1058                         if(!(rmdstat & RCV_ERR)) {
1059                                 if(rmdstat & RCV_START)
1060                                 {
1061                                         p->stats.rx_length_errors++;
1062                                         printk(KERN_ERR "%s: recv, packet too long: %d\n",dev->name,rmdp->mlen & 0x0fff);
1063                                 }
1064                         }
1065                         else {
1066                                 if(debuglevel > 2)
1067                                         printk(KERN_ERR "%s: receive-error: %04x, lance-status: %04x/%04x\n",
1068                                                                         dev->name,(int) rmdstat,csr0,(int) inw(PORT+L_DATAREG) );
1069                                 if(rmdstat & RCV_FRAM)
1070                                         p->stats.rx_frame_errors++;
1071                                 if(rmdstat & RCV_OFLO)
1072                                         p->stats.rx_over_errors++;
1073                                 if(rmdstat & RCV_CRC)
1074                                         p->stats.rx_crc_errors++;
1075                                 if(rmdstat & RCV_BUF_ERR)
1076                                         p->stats.rx_fifo_errors++;
1077                         }
1078                         if(!(csr0 & CSR0_MISS)) /* don't count errors twice */
1079                                 p->stats.rx_errors++;
1080                 }
1081                 else if( (len = (rmdp->mlen & 0x0fff) - 4) >= 60)
1082                 {
1083 #ifdef RCV_VIA_SKB
1084                         struct sk_buff *skb = alloc_skb(R_BUF_SIZE+2+16,GFP_ATOMIC);
1085                         if (skb)
1086                                 skb_reserve(skb,16);
1087 #else
1088                         struct sk_buff *skb = dev_alloc_skb(len+2);
1089 #endif
1090                         if(skb)
1091                         {
1092                                 skb_reserve(skb,2);
1093 #ifdef RCV_VIA_SKB
1094                                 if( (unsigned long) (skb->data + R_BUF_SIZE) > 0x1000000) {
1095                                         skb_put(skb,len);
1096                                         skb_copy_to_linear_data(skb, (unsigned char *)(p->recv_skb[p->rmdnum]->data),len);
1097                                 }
1098                                 else {
1099                                         struct sk_buff *skb1 = p->recv_skb[p->rmdnum];
1100                                         skb_put(skb,R_BUF_SIZE);
1101                                         p->recv_skb[p->rmdnum] = skb;
1102                                         rmdp->u.buffer = (u32) isa_virt_to_bus(skb->data);
1103                                         skb = skb1;
1104                                         skb_trim(skb,len);
1105                                 }
1106 #else
1107                                 skb_put(skb,len);
1108                                 skb_copy_to_linear_data(skb, (unsigned char *) p->recvbounce[p->rmdnum],len);
1109 #endif
1110                                 p->stats.rx_packets++;
1111                                 p->stats.rx_bytes += len;
1112                                 skb->protocol=eth_type_trans(skb,dev);
1113                                 netif_rx(skb);
1114                         }
1115                         else
1116                         {
1117                                 printk(KERN_ERR "%s: can't alloc new sk_buff\n",dev->name);
1118                                 p->stats.rx_dropped++;
1119                         }
1120                 }
1121                 else {
1122                         printk(KERN_INFO "%s: received runt packet\n",dev->name);
1123                         p->stats.rx_errors++;
1124                 }
1125                 rmdp->blen = -(R_BUF_SIZE-8);
1126                 rmdp->mlen = 0;
1127                 rmdp->u.s.status = RCV_OWN; /* change owner */
1128                 p->rmdnum = (p->rmdnum + 1) & (RMDNUM-1);
1129                 rmdp = p->rmdhead + p->rmdnum;
1130         }
1131 }
1132
1133 /*
1134  * kick xmitter ..
1135  */
1136
1137 static void ni65_timeout(struct net_device *dev)
1138 {
1139         int i;
1140         struct priv *p = dev->ml_priv;
1141
1142         printk(KERN_ERR "%s: xmitter timed out, try to restart!\n",dev->name);
1143         for(i=0;i<TMDNUM;i++)
1144                 printk("%02x ",p->tmdhead[i].u.s.status);
1145         printk("\n");
1146         ni65_lance_reinit(dev);
1147         dev->trans_start = jiffies;
1148         netif_wake_queue(dev);
1149 }
1150
1151 /*
1152  *      Send a packet
1153  */
1154
1155 static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev)
1156 {
1157         struct priv *p = dev->ml_priv;
1158
1159         netif_stop_queue(dev);
1160
1161         if (test_and_set_bit(0, (void*)&p->lock)) {
1162                 printk(KERN_ERR "%s: Queue was locked.\n", dev->name);
1163                 return 1;
1164         }
1165
1166         {
1167                 short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1168                 struct tmd *tmdp;
1169                 unsigned long flags;
1170
1171 #ifdef XMT_VIA_SKB
1172                 if( (unsigned long) (skb->data + skb->len) > 0x1000000) {
1173 #endif
1174
1175                         skb_copy_from_linear_data(skb, p->tmdbounce[p->tmdbouncenum],
1176                                       skb->len > T_BUF_SIZE ? T_BUF_SIZE :
1177                                                               skb->len);
1178                         if (len > skb->len)
1179                                 memset((char *)p->tmdbounce[p->tmdbouncenum]+skb->len, 0, len-skb->len);
1180                         dev_kfree_skb (skb);
1181
1182                         spin_lock_irqsave(&p->ring_lock, flags);
1183                         tmdp = p->tmdhead + p->tmdnum;
1184                         tmdp->u.buffer = (u32) isa_virt_to_bus(p->tmdbounce[p->tmdbouncenum]);
1185                         p->tmdbouncenum = (p->tmdbouncenum + 1) & (TMDNUM - 1);
1186
1187 #ifdef XMT_VIA_SKB
1188                 }
1189                 else {
1190                         spin_lock_irqsave(&p->ring_lock, flags);
1191
1192                         tmdp = p->tmdhead + p->tmdnum;
1193                         tmdp->u.buffer = (u32) isa_virt_to_bus(skb->data);
1194                         p->tmd_skb[p->tmdnum] = skb;
1195                 }
1196 #endif
1197                 tmdp->blen = -len;
1198
1199                 tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;
1200                 writedatareg(CSR0_TDMD | CSR0_INEA); /* enable xmit & interrupt */
1201
1202                 p->xmit_queued = 1;
1203                 p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
1204
1205                 if(p->tmdnum != p->tmdlast)
1206                         netif_wake_queue(dev);
1207
1208                 p->lock = 0;
1209                 dev->trans_start = jiffies;
1210
1211                 spin_unlock_irqrestore(&p->ring_lock, flags);
1212         }
1213
1214         return 0;
1215 }
1216
1217 static struct net_device_stats *ni65_get_stats(struct net_device *dev)
1218 {
1219
1220 #if 0
1221         int i;
1222         struct priv *p = dev->ml_priv;
1223         for(i=0;i<RMDNUM;i++)
1224         {
1225                 struct rmd *rmdp = p->rmdhead + ((p->rmdnum + i) & (RMDNUM-1));
1226                 printk("%02x ",rmdp->u.s.status);
1227         }
1228         printk("\n");
1229 #endif
1230
1231         return &((struct priv *)dev->ml_priv)->stats;
1232 }
1233
1234 static void set_multicast_list(struct net_device *dev)
1235 {
1236         if(!ni65_lance_reinit(dev))
1237                 printk(KERN_ERR "%s: Can't switch card into MC mode!\n",dev->name);
1238         netif_wake_queue(dev);
1239 }
1240
1241 #ifdef MODULE
1242 static struct net_device *dev_ni65;
1243
1244 module_param(irq, int, 0);
1245 module_param(io, int, 0);
1246 module_param(dma, int, 0);
1247 MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)");
1248 MODULE_PARM_DESC(io, "ni6510 I/O base address");
1249 MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)");
1250
1251 int __init init_module(void)
1252 {
1253         dev_ni65 = ni65_probe(-1);
1254         return IS_ERR(dev_ni65) ? PTR_ERR(dev_ni65) : 0;
1255 }
1256
1257 void __exit cleanup_module(void)
1258 {
1259         unregister_netdev(dev_ni65);
1260         cleanup_card(dev_ni65);
1261         free_netdev(dev_ni65);
1262 }
1263 #endif /* MODULE */
1264
1265 MODULE_LICENSE("GPL");