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
 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 void set_multicast_list(struct net_device *dev);
 261
 262 static int irqtab[] __initdata = { 9,12,15,5 }; /* irq config-translate */
 263 static int dmatab[] __initdata = { 0,3,5,6,7 }; /* dma config-translate and autodetect */
 264
 265 static int debuglevel = 1;
 266
 267 /*
 268  * set 'performance' registers .. we must STOP lance for that
 269  */
 270 static void ni65_set_performance(struct priv *p)
 271 {
 272         writereg(CSR0_STOP | CSR0_CLRALL,CSR0); /* STOP */
 273
 274         if( !(cards[p->cardno].config & 0x02) )
 275                 return;
 276
 277         outw(80,PORT+L_ADDRREG);
 278         if(inw(PORT+L_ADDRREG) != 80)
 279                 return;
 280
 281         writereg( (csr80 & 0x3fff) ,80); /* FIFO watermarks */
 282         outw(0,PORT+L_ADDRREG);
 283         outw((short)isa0,PORT+L_BUSIF); /* write ISA 0: DMA_R : isa0 * 50ns */
 284         outw(1,PORT+L_ADDRREG);
 285         outw((short)isa1,PORT+L_BUSIF); /* write ISA 1: DMA_W : isa1 * 50ns     */
 286
 287         outw(CSR0,PORT+L_ADDRREG);      /* switch back to CSR0 */
 288 }
 289
 290 /*
 291  * open interface (up)
 292  */
 293 static int ni65_open(struct net_device *dev)
 294 {
 295         struct priv *p = dev->ml_priv;
 296         int irqval = request_irq(dev->irq, &ni65_interrupt,0,
 297                         cards[p->cardno].cardname,dev);
 298         if (irqval) {
 299                 printk(KERN_ERR "%s: unable to get IRQ %d (irqval=%d).\n",
 300                           dev->name,dev->irq, irqval);
 301                 return -EAGAIN;
 302         }
 303
 304         if(ni65_lance_reinit(dev))
 305         {
 306                 netif_start_queue(dev);
 307                 return 0;
 308         }
 309         else
 310         {
 311                 free_irq(dev->irq,dev);
 312                 return -EAGAIN;
 313         }
 314 }
 315
 316 /*
 317  * close interface (down)
 318  */
 319 static int ni65_close(struct net_device *dev)
 320 {
 321         struct priv *p = dev->ml_priv;
 322
 323         netif_stop_queue(dev);
 324
 325         outw(inw(PORT+L_RESET),PORT+L_RESET); /* that's the hard way */
 326
 327 #ifdef XMT_VIA_SKB
 328         {
 329                 int i;
 330                 for(i=0;i<TMDNUM;i++)
 331                 {
 332                         if(p->tmd_skb[i]) {
 333                                 dev_kfree_skb(p->tmd_skb[i]);
 334                                 p->tmd_skb[i] = NULL;
 335                         }
 336                 }
 337         }
 338 #endif
 339         free_irq(dev->irq,dev);
 340         return 0;
 341 }
 342
 343 static void cleanup_card(struct net_device *dev)
 344 {
 345         struct priv *p = dev->ml_priv;
 346         disable_dma(dev->dma);
 347         free_dma(dev->dma);
 348         release_region(dev->base_addr, cards[p->cardno].total_size);
 349         ni65_free_buffer(p);
 350 }
 351
 352 /* set: io,irq,dma or set it when calling insmod */
 353 static int irq;
 354 static int io;
 355 static int dma;
 356
 357 /*
 358  * Probe The Card (not the lance-chip)
 359  */
 360 struct net_device * __init ni65_probe(int unit)
 361 {
 362         struct net_device *dev = alloc_etherdev(0);
 363         static int ports[] = {0x360,0x300,0x320,0x340, 0};
 364         int *port;
 365         int err = 0;
 366
 367         if (!dev)
 368                 return ERR_PTR(-ENOMEM);
 369
 370         if (unit >= 0) {
 371                 sprintf(dev->name, "eth%d", unit);
 372                 netdev_boot_setup_check(dev);
 373                 irq = dev->irq;
 374                 dma = dev->dma;
 375         } else {
 376                 dev->base_addr = io;
 377         }
 378
 379         if (dev->base_addr > 0x1ff) { /* Check a single specified location. */
 380                 err = ni65_probe1(dev, dev->base_addr);
 381         } else if (dev->base_addr > 0) { /* Don't probe at all. */
 382                 err = -ENXIO;
 383         } else {
 384                 for (port = ports; *port && ni65_probe1(dev, *port); port++)
 385                         ;
 386                 if (!*port)
 387                         err = -ENODEV;
 388         }
 389         if (err)
 390                 goto out;
 391
 392         err = register_netdev(dev);
 393         if (err)
 394                 goto out1;
 395         return dev;
 396 out1:
 397         cleanup_card(dev);
 398 out:
 399         free_netdev(dev);
 400         return ERR_PTR(err);
 401 }
 402
 403 static const struct net_device_ops ni65_netdev_ops = {
 404         .ndo_open               = ni65_open,
 405         .ndo_stop               = ni65_close,
 406         .ndo_start_xmit         = ni65_send_packet,
 407         .ndo_tx_timeout         = ni65_timeout,
 408         .ndo_set_multicast_list = set_multicast_list,
 409         .ndo_change_mtu         = eth_change_mtu,
 410         .ndo_set_mac_address    = eth_mac_addr,
 411         .ndo_validate_addr      = eth_validate_addr,
 412 };
 413
 414 /*
 415  * this is the real card probe ..
 416  */
 417 static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 418 {
 419         int i,j;
 420         struct priv *p;
 421         unsigned long flags;
 422
 423         dev->irq = irq;
 424         dev->dma = dma;
 425
 426         for(i=0;i<NUM_CARDS;i++) {
 427                 if(!request_region(ioaddr, cards[i].total_size, cards[i].cardname))
 428                         continue;
 429                 if(cards[i].id_offset >= 0) {
 430                         if(inb(ioaddr+cards[i].id_offset+0) != cards[i].id0 ||
 431                                  inb(ioaddr+cards[i].id_offset+1) != cards[i].id1) {
 432                                  release_region(ioaddr, cards[i].total_size);
 433                                  continue;
 434                         }
 435                 }
 436                 if(cards[i].vendor_id) {
 437                         for(j=0;j<3;j++)
 438                                 if(inb(ioaddr+cards[i].addr_offset+j) != cards[i].vendor_id[j]) {
 439                                         release_region(ioaddr, cards[i].total_size);
 440                                         continue;
 441                           }
 442                 }
 443                 break;
 444         }
 445         if(i == NUM_CARDS)
 446                 return -ENODEV;
 447
 448         for(j=0;j<6;j++)
 449                 dev->dev_addr[j] = inb(ioaddr+cards[i].addr_offset+j);
 450
 451         if( (j=ni65_alloc_buffer(dev)) < 0) {
 452                 release_region(ioaddr, cards[i].total_size);
 453                 return j;
 454         }
 455         p = dev->ml_priv;
 456         p->cmdr_addr = ioaddr + cards[i].cmd_offset;
 457         p->cardno = i;
 458         spin_lock_init(&p->ring_lock);
 459
 460         printk(KERN_INFO "%s: %s found at %#3x, ", dev->name, cards[p->cardno].cardname , ioaddr);
 461
 462         outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 463         if( (j=readreg(CSR0)) != 0x4) {
 464                  printk("failed.\n");
 465                  printk(KERN_ERR "%s: Can't RESET card: %04x\n", dev->name, j);
 466                  ni65_free_buffer(p);
 467                  release_region(ioaddr, cards[p->cardno].total_size);
 468                  return -EAGAIN;
 469         }
 470
 471         outw(88,PORT+L_ADDRREG);
 472         if(inw(PORT+L_ADDRREG) == 88) {
 473                 unsigned long v;
 474                 v = inw(PORT+L_DATAREG);
 475                 v <<= 16;
 476                 outw(89,PORT+L_ADDRREG);
 477                 v |= inw(PORT+L_DATAREG);
 478                 printk("Version %#08lx, ",v);
 479                 p->features = INIT_RING_BEFORE_START;
 480         }
 481         else {
 482                 printk("ancient LANCE, ");
 483                 p->features = 0x0;
 484         }
 485
 486         if(test_bit(0,&cards[i].config)) {
 487                 dev->irq = irqtab[(inw(ioaddr+L_CONFIG)>>2)&3];
 488                 dev->dma = dmatab[inw(ioaddr+L_CONFIG)&3];
 489                 printk("IRQ %d (from card), DMA %d (from card).\n",dev->irq,dev->dma);
 490         }
 491         else {
 492                 if(dev->dma == 0) {
 493                 /* 'stuck test' from lance.c */
 494                         unsigned long dma_channels =
 495                                 ((inb(DMA1_STAT_REG) >> 4) & 0x0f)
 496                                 | (inb(DMA2_STAT_REG) & 0xf0);
 497                         for(i=1;i<5;i++) {
 498                                 int dma = dmatab[i];
 499                                 if(test_bit(dma,&dma_channels) || request_dma(dma,"ni6510"))
 500                                         continue;
 501
 502                                 flags=claim_dma_lock();
 503                                 disable_dma(dma);
 504                                 set_dma_mode(dma,DMA_MODE_CASCADE);
 505                                 enable_dma(dma);
 506                                 release_dma_lock(flags);
 507
 508                                 ni65_init_lance(p,dev->dev_addr,0,0); /* trigger memory access */
 509
 510                                 flags=claim_dma_lock();
 511                                 disable_dma(dma);
 512                                 free_dma(dma);
 513                                 release_dma_lock(flags);
 514
 515                                 if(readreg(CSR0) & CSR0_IDON)
 516                                         break;
 517                         }
 518                         if(i == 5) {
 519                                 printk("failed.\n");
 520                                 printk(KERN_ERR "%s: Can't detect DMA channel!\n", dev->name);
 521                                 ni65_free_buffer(p);
 522                                 release_region(ioaddr, cards[p->cardno].total_size);
 523                                 return -EAGAIN;
 524                         }
 525                         dev->dma = dmatab[i];
 526                         printk("DMA %d (autodetected), ",dev->dma);
 527                 }
 528                 else
 529                         printk("DMA %d (assigned), ",dev->dma);
 530
 531                 if(dev->irq < 2)
 532                 {
 533                         unsigned long irq_mask;
 534
 535                         ni65_init_lance(p,dev->dev_addr,0,0);
 536                         irq_mask = probe_irq_on();
 537                         writereg(CSR0_INIT|CSR0_INEA,CSR0); /* trigger interrupt */
 538                         msleep(20);
 539                         dev->irq = probe_irq_off(irq_mask);
 540                         if(!dev->irq)
 541                         {
 542                                 printk("Failed to detect IRQ line!\n");
 543                                 ni65_free_buffer(p);
 544                                 release_region(ioaddr, cards[p->cardno].total_size);
 545                                 return -EAGAIN;
 546                         }
 547                         printk("IRQ %d (autodetected).\n",dev->irq);
 548                 }
 549                 else
 550                         printk("IRQ %d (assigned).\n",dev->irq);
 551         }
 552
 553         if(request_dma(dev->dma, cards[p->cardno].cardname ) != 0)
 554         {
 555                 printk(KERN_ERR "%s: Can't request dma-channel %d\n",dev->name,(int) dev->dma);
 556                 ni65_free_buffer(p);
 557                 release_region(ioaddr, cards[p->cardno].total_size);
 558                 return -EAGAIN;
 559         }
 560
 561         dev->base_addr = ioaddr;
 562         dev->netdev_ops = &ni65_netdev_ops;
 563         dev->watchdog_timeo     = HZ/2;
 564
 565         return 0; /* everything is OK */
 566 }
 567
 568 /*
 569  * set lance register and trigger init
 570  */
 571 static void ni65_init_lance(struct priv *p,unsigned char *daddr,int filter,int mode)
 572 {
 573         int i;
 574         u32 pib;
 575
 576         writereg(CSR0_CLRALL|CSR0_STOP,CSR0);
 577
 578         for(i=0;i<6;i++)
 579                 p->ib.eaddr[i] = daddr[i];
 580
 581         for(i=0;i<8;i++)
 582                 p->ib.filter[i] = filter;
 583         p->ib.mode = mode;
 584
 585         p->ib.trp = (u32) isa_virt_to_bus(p->tmdhead) | TMDNUMMASK;
 586         p->ib.rrp = (u32) isa_virt_to_bus(p->rmdhead) | RMDNUMMASK;
 587         writereg(0,CSR3);       /* busmaster/no word-swap */
 588         pib = (u32) isa_virt_to_bus(&p->ib);
 589         writereg(pib & 0xffff,CSR1);
 590         writereg(pib >> 16,CSR2);
 591
 592         writereg(CSR0_INIT,CSR0); /* this changes L_ADDRREG to CSR0 */
 593
 594         for(i=0;i<32;i++)
 595         {
 596                 mdelay(4);
 597                 if(inw(PORT+L_DATAREG) & (CSR0_IDON | CSR0_MERR) )
 598                         break; /* init ok ? */
 599         }
 600 }
 601
 602 /*
 603  * allocate memory area and check the 16MB border
 604  */
 605 static void *ni65_alloc_mem(struct net_device *dev,char *what,int size,int type)
 606 {
 607         struct sk_buff *skb=NULL;
 608         unsigned char *ptr;
 609         void *ret;
 610
 611         if(type) {
 612                 ret = skb = alloc_skb(2+16+size,GFP_KERNEL|GFP_DMA);
 613                 if(!skb) {
 614                         printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what);
 615                         return NULL;
 616                 }
 617                 skb_reserve(skb,2+16);
 618                 skb_put(skb,R_BUF_SIZE);         /* grab the whole space .. (not necessary) */
 619                 ptr = skb->data;
 620         }
 621         else {
 622                 ret = ptr = kmalloc(T_BUF_SIZE,GFP_KERNEL | GFP_DMA);
 623                 if(!ret) {
 624                         printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what);
 625                         return NULL;
 626                 }
 627         }
 628         if( (u32) virt_to_phys(ptr+size) > 0x1000000) {
 629                 printk(KERN_WARNING "%s: unable to allocate %s memory in lower 16MB!\n",dev->name,what);
 630                 if(type)
 631                         kfree_skb(skb);
 632                 else
 633                         kfree(ptr);
 634                 return NULL;
 635         }
 636         return ret;
 637 }
 638
 639 /*
 640  * allocate all memory structures .. send/recv buffers etc ...
 641  */
 642 static int ni65_alloc_buffer(struct net_device *dev)
 643 {
 644         unsigned char *ptr;
 645         struct priv *p;
 646         int i;
 647
 648         /*
 649          * we need 8-aligned memory ..
 650          */
 651         ptr = ni65_alloc_mem(dev,"BUFFER",sizeof(struct priv)+8,0);
 652         if(!ptr)
 653                 return -ENOMEM;
 654
 655         p = dev->ml_priv = (struct priv *) (((unsigned long) ptr + 7) & ~0x7);
 656         memset((char *)p, 0, sizeof(struct priv));
 657         p->self = ptr;
 658
 659         for(i=0;i<TMDNUM;i++)
 660         {
 661 #ifdef XMT_VIA_SKB
 662                 p->tmd_skb[i] = NULL;
 663 #endif
 664                 p->tmdbounce[i] = ni65_alloc_mem(dev,"XMIT",T_BUF_SIZE,0);
 665                 if(!p->tmdbounce[i]) {
 666                         ni65_free_buffer(p);
 667                         return -ENOMEM;
 668                 }
 669         }
 670
 671         for(i=0;i<RMDNUM;i++)
 672         {
 673 #ifdef RCV_VIA_SKB
 674                 p->recv_skb[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,1);
 675                 if(!p->recv_skb[i]) {
 676                         ni65_free_buffer(p);
 677                         return -ENOMEM;
 678                 }
 679 #else
 680                 p->recvbounce[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,0);
 681                 if(!p->recvbounce[i]) {
 682                         ni65_free_buffer(p);
 683                         return -ENOMEM;
 684                 }
 685 #endif
 686         }
 687
 688         return 0; /* everything is OK */
 689 }
 690
 691 /*
 692  * free buffers and private struct
 693  */
 694 static void ni65_free_buffer(struct priv *p)
 695 {
 696         int i;
 697
 698         if(!p)
 699                 return;
 700
 701         for(i=0;i<TMDNUM;i++) {
 702                 kfree(p->tmdbounce[i]);
 703 #ifdef XMT_VIA_SKB
 704                 if(p->tmd_skb[i])
 705                         dev_kfree_skb(p->tmd_skb[i]);
 706 #endif
 707         }
 708
 709         for(i=0;i<RMDNUM;i++)
 710         {
 711 #ifdef RCV_VIA_SKB
 712                 if(p->recv_skb[i])
 713                         dev_kfree_skb(p->recv_skb[i]);
 714 #else
 715                 kfree(p->recvbounce[i]);
 716 #endif
 717         }
 718         kfree(p->self);
 719 }
 720
 721
 722 /*
 723  * stop and (re)start lance .. e.g after an error
 724  */
 725 static void ni65_stop_start(struct net_device *dev,struct priv *p)
 726 {
 727         int csr0 = CSR0_INEA;
 728
 729         writedatareg(CSR0_STOP);
 730
 731         if(debuglevel > 1)
 732                 printk(KERN_DEBUG "ni65_stop_start\n");
 733
 734         if(p->features & INIT_RING_BEFORE_START) {
 735                 int i;
 736 #ifdef XMT_VIA_SKB
 737                 struct sk_buff *skb_save[TMDNUM];
 738 #endif
 739                 unsigned long buffer[TMDNUM];
 740                 short blen[TMDNUM];
 741
 742                 if(p->xmit_queued) {
 743                         while(1) {
 744                                 if((p->tmdhead[p->tmdlast].u.s.status & XMIT_OWN))
 745                                         break;
 746                                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
 747                                 if(p->tmdlast == p->tmdnum)
 748                                         break;
 749                         }
 750                 }
 751
 752                 for(i=0;i<TMDNUM;i++) {
 753                         struct tmd *tmdp = p->tmdhead + i;
 754 #ifdef XMT_VIA_SKB
 755                         skb_save[i] = p->tmd_skb[i];
 756 #endif
 757                         buffer[i] = (u32) isa_bus_to_virt(tmdp->u.buffer);
 758                         blen[i] = tmdp->blen;
 759                         tmdp->u.s.status = 0x0;
 760                 }
 761
 762                 for(i=0;i<RMDNUM;i++) {
 763                         struct rmd *rmdp = p->rmdhead + i;
 764                         rmdp->u.s.status = RCV_OWN;
 765                 }
 766                 p->tmdnum = p->xmit_queued = 0;
 767                 writedatareg(CSR0_STRT | csr0);
 768
 769                 for(i=0;i<TMDNUM;i++) {
 770                         int num = (i + p->tmdlast) & (TMDNUM-1);
 771                         p->tmdhead[i].u.buffer = (u32) isa_virt_to_bus((char *)buffer[num]); /* status is part of buffer field */
 772                         p->tmdhead[i].blen = blen[num];
 773                         if(p->tmdhead[i].u.s.status & XMIT_OWN) {
 774                                  p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
 775                                  p->xmit_queued = 1;
 776          writedatareg(CSR0_TDMD | CSR0_INEA | csr0);
 777                         }
 778 #ifdef XMT_VIA_SKB
 779                         p->tmd_skb[i] = skb_save[num];
 780 #endif
 781                 }
 782                 p->rmdnum = p->tmdlast = 0;
 783                 if(!p->lock)
 784                         if (p->tmdnum || !p->xmit_queued)
 785                                 netif_wake_queue(dev);
 786                 dev->trans_start = jiffies;
 787         }
 788         else
 789                 writedatareg(CSR0_STRT | csr0);
 790 }
 791
 792 /*
 793  * init lance (write init-values .. init-buffers) (open-helper)
 794  */
 795 static int ni65_lance_reinit(struct net_device *dev)
 796 {
 797          int i;
 798          struct priv *p = dev->ml_priv;
 799          unsigned long flags;
 800
 801          p->lock = 0;
 802          p->xmit_queued = 0;
 803
 804          flags=claim_dma_lock();
 805          disable_dma(dev->dma); /* I've never worked with dma, but we do it like the packetdriver */
 806          set_dma_mode(dev->dma,DMA_MODE_CASCADE);
 807          enable_dma(dev->dma);
 808          release_dma_lock(flags);
 809
 810          outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 811          if( (i=readreg(CSR0) ) != 0x4)
 812          {
 813                  printk(KERN_ERR "%s: can't RESET %s card: %04x\n",dev->name,
 814                                                         cards[p->cardno].cardname,(int) i);
 815                  flags=claim_dma_lock();
 816                  disable_dma(dev->dma);
 817                  release_dma_lock(flags);
 818                  return 0;
 819          }
 820
 821          p->rmdnum = p->tmdnum = p->tmdlast = p->tmdbouncenum = 0;
 822          for(i=0;i<TMDNUM;i++)
 823          {
 824                  struct tmd *tmdp = p->tmdhead + i;
 825 #ifdef XMT_VIA_SKB
 826                  if(p->tmd_skb[i]) {
 827                          dev_kfree_skb(p->tmd_skb[i]);
 828                          p->tmd_skb[i] = NULL;
 829                  }
 830 #endif
 831                  tmdp->u.buffer = 0x0;
 832                  tmdp->u.s.status = XMIT_START | XMIT_END;
 833                  tmdp->blen = tmdp->status2 = 0;
 834          }
 835
 836          for(i=0;i<RMDNUM;i++)
 837          {
 838                  struct rmd *rmdp = p->rmdhead + i;
 839 #ifdef RCV_VIA_SKB
 840                  rmdp->u.buffer = (u32) isa_virt_to_bus(p->recv_skb[i]->data);
 841 #else
 842                  rmdp->u.buffer = (u32) isa_virt_to_bus(p->recvbounce[i]);
 843 #endif
 844                  rmdp->blen = -(R_BUF_SIZE-8);
 845                  rmdp->mlen = 0;
 846                  rmdp->u.s.status = RCV_OWN;
 847          }
 848
 849          if(dev->flags & IFF_PROMISC)
 850                  ni65_init_lance(p,dev->dev_addr,0x00,M_PROM);
 851          else if(dev->mc_count || dev->flags & IFF_ALLMULTI)
 852                  ni65_init_lance(p,dev->dev_addr,0xff,0x0);
 853          else
 854                  ni65_init_lance(p,dev->dev_addr,0x00,0x00);
 855
 856         /*
 857          * ni65_set_lance_mem() sets L_ADDRREG to CSR0
 858          * NOW, WE WILL NEVER CHANGE THE L_ADDRREG, CSR0 IS ALWAYS SELECTED
 859          */
 860
 861          if(inw(PORT+L_DATAREG) & CSR0_IDON)    {
 862                  ni65_set_performance(p);
 863                                          /* init OK: start lance , enable interrupts */
 864                  writedatareg(CSR0_CLRALL | CSR0_INEA | CSR0_STRT);
 865                  return 1; /* ->OK */
 866          }
 867          printk(KERN_ERR "%s: can't init lance, status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
 868          flags=claim_dma_lock();
 869          disable_dma(dev->dma);
 870          release_dma_lock(flags);
 871          return 0; /* ->Error */
 872 }
 873
 874 /*
 875  * interrupt handler
 876  */
 877 static irqreturn_t ni65_interrupt(int irq, void * dev_id)
 878 {
 879         int csr0 = 0;
 880         struct net_device *dev = dev_id;
 881         struct priv *p;
 882         int bcnt = 32;
 883
 884         p = dev->ml_priv;
 885
 886         spin_lock(&p->ring_lock);
 887
 888         while(--bcnt) {
 889                 csr0 = inw(PORT+L_DATAREG);
 890
 891 #if 0
 892                 writedatareg( (csr0 & CSR0_CLRALL) ); /* ack interrupts, disable int. */
 893 #else
 894                 writedatareg( (csr0 & CSR0_CLRALL) | CSR0_INEA ); /* ack interrupts, interrupts enabled */
 895 #endif
 896
 897                 if(!(csr0 & (CSR0_ERR | CSR0_RINT | CSR0_TINT)))
 898                         break;
 899
 900                 if(csr0 & CSR0_RINT) /* RECV-int? */
 901                         ni65_recv_intr(dev,csr0);
 902                 if(csr0 & CSR0_TINT) /* XMIT-int? */
 903                         ni65_xmit_intr(dev,csr0);
 904
 905                 if(csr0 & CSR0_ERR)
 906                 {
 907                         if(debuglevel > 1)
 908                                 printk(KERN_ERR "%s: general error: %04x.\n",dev->name,csr0);
 909                         if(csr0 & CSR0_BABL)
 910                                 dev->stats.tx_errors++;
 911                         if(csr0 & CSR0_MISS) {
 912                                 int i;
 913                                 for(i=0;i<RMDNUM;i++)
 914                                         printk("%02x ",p->rmdhead[i].u.s.status);
 915                                 printk("\n");
 916                                 dev->stats.rx_errors++;
 917                         }
 918                         if(csr0 & CSR0_MERR) {
 919                                 if(debuglevel > 1)
 920                                         printk(KERN_ERR "%s: Ooops .. memory error: %04x.\n",dev->name,csr0);
 921                                 ni65_stop_start(dev,p);
 922                         }
 923                 }
 924         }
 925
 926 #ifdef RCV_PARANOIA_CHECK
 927 {
 928  int j;
 929  for(j=0;j<RMDNUM;j++)
 930  {
 931         int i, num2;
 932         for(i=RMDNUM-1;i>0;i--) {
 933                  num2 = (p->rmdnum + i) & (RMDNUM-1);
 934                  if(!(p->rmdhead[num2].u.s.status & RCV_OWN))
 935                                 break;
 936         }
 937
 938         if(i) {
 939                 int k, num1;
 940                 for(k=0;k<RMDNUM;k++) {
 941                         num1 = (p->rmdnum + k) & (RMDNUM-1);
 942                         if(!(p->rmdhead[num1].u.s.status & RCV_OWN))
 943                                 break;
 944                 }
 945                 if(!k)
 946                         break;
 947
 948                 if(debuglevel > 0)
 949                 {
 950                         char buf[256],*buf1;
 951                         buf1 = buf;
 952                         for(k=0;k<RMDNUM;k++) {
 953                                 sprintf(buf1,"%02x ",(p->rmdhead[k].u.s.status)); /* & RCV_OWN) ); */
 954                                 buf1 += 3;
 955                         }
 956                         *buf1 = 0;
 957                         printk(KERN_ERR "%s: Ooops, receive ring corrupted %2d %2d | %s\n",dev->name,p->rmdnum,i,buf);
 958                 }
 959
 960                 p->rmdnum = num1;
 961                 ni65_recv_intr(dev,csr0);
 962                 if((p->rmdhead[num2].u.s.status & RCV_OWN))
 963                         break;  /* ok, we are 'in sync' again */
 964         }
 965         else
 966                 break;
 967  }
 968 }
 969 #endif
 970
 971         if( (csr0 & (CSR0_RXON | CSR0_TXON)) != (CSR0_RXON | CSR0_TXON) ) {
 972                 printk(KERN_DEBUG "%s: RX or TX was offline -> restart\n",dev->name);
 973                 ni65_stop_start(dev,p);
 974         }
 975         else
 976                 writedatareg(CSR0_INEA);
 977
 978         spin_unlock(&p->ring_lock);
 979         return IRQ_HANDLED;
 980 }
 981
 982 /*
 983  * We have received an Xmit-Interrupt ..
 984  * send a new packet if necessary
 985  */
 986 static void ni65_xmit_intr(struct net_device *dev,int csr0)
 987 {
 988         struct priv *p = dev->ml_priv;
 989
 990         while(p->xmit_queued)
 991         {
 992                 struct tmd *tmdp = p->tmdhead + p->tmdlast;
 993                 int tmdstat = tmdp->u.s.status;
 994
 995                 if(tmdstat & XMIT_OWN)
 996                         break;
 997
 998                 if(tmdstat & XMIT_ERR)
 999                 {
1000 #if 0
1001                         if(tmdp->status2 & XMIT_TDRMASK && debuglevel > 3)
1002                                 printk(KERN_ERR "%s: tdr-problems (e.g. no resistor)\n",dev->name);
1003 #endif
1004                  /* checking some errors */
1005                         if(tmdp->status2 & XMIT_RTRY)
1006                                 dev->stats.tx_aborted_errors++;
1007                         if(tmdp->status2 & XMIT_LCAR)
1008                                 dev->stats.tx_carrier_errors++;
1009                         if(tmdp->status2 & (XMIT_BUFF | XMIT_UFLO )) {
1010                 /* this stops the xmitter */
1011                                 dev->stats.tx_fifo_errors++;
1012                                 if(debuglevel > 0)
1013                                         printk(KERN_ERR "%s: Xmit FIFO/BUFF error\n",dev->name);
1014                                 if(p->features & INIT_RING_BEFORE_START) {
1015                                         tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;    /* test: resend this frame */
1016                                         ni65_stop_start(dev,p);
1017                                         break;  /* no more Xmit processing .. */
1018                                 }
1019                                 else
1020                                  ni65_stop_start(dev,p);
1021                         }
1022                         if(debuglevel > 2)
1023                                 printk(KERN_ERR "%s: xmit-error: %04x %02x-%04x\n",dev->name,csr0,(int) tmdstat,(int) tmdp->status2);
1024                         if(!(csr0 & CSR0_BABL)) /* don't count errors twice */
1025                                 dev->stats.tx_errors++;
1026                         tmdp->status2 = 0;
1027                 }
1028                 else {
1029                         dev->stats.tx_bytes -= (short)(tmdp->blen);
1030                         dev->stats.tx_packets++;
1031                 }
1032
1033 #ifdef XMT_VIA_SKB
1034                 if(p->tmd_skb[p->tmdlast]) {
1035                          dev_kfree_skb_irq(p->tmd_skb[p->tmdlast]);
1036                          p->tmd_skb[p->tmdlast] = NULL;
1037                 }
1038 #endif
1039
1040                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
1041                 if(p->tmdlast == p->tmdnum)
1042                         p->xmit_queued = 0;
1043         }
1044         netif_wake_queue(dev);
1045 }
1046
1047 /*
1048  * We have received a packet
1049  */
1050 static void ni65_recv_intr(struct net_device *dev,int csr0)
1051 {
1052         struct rmd *rmdp;
1053         int rmdstat,len;
1054         int cnt=0;
1055         struct priv *p = dev->ml_priv;
1056
1057         rmdp = p->rmdhead + p->rmdnum;
1058         while(!( (rmdstat = rmdp->u.s.status) & RCV_OWN))
1059         {
1060                 cnt++;
1061                 if( (rmdstat & (RCV_START | RCV_END | RCV_ERR)) != (RCV_START | RCV_END) ) /* error or oversized? */
1062                 {
1063                         if(!(rmdstat & RCV_ERR)) {
1064                                 if(rmdstat & RCV_START)
1065                                 {
1066                                         dev->stats.rx_length_errors++;
1067                                         printk(KERN_ERR "%s: recv, packet too long: %d\n",dev->name,rmdp->mlen & 0x0fff);
1068                                 }
1069                         }
1070                         else {
1071                                 if(debuglevel > 2)
1072                                         printk(KERN_ERR "%s: receive-error: %04x, lance-status: %04x/%04x\n",
1073                                                                         dev->name,(int) rmdstat,csr0,(int) inw(PORT+L_DATAREG) );
1074                                 if(rmdstat & RCV_FRAM)
1075                                         dev->stats.rx_frame_errors++;
1076                                 if(rmdstat & RCV_OFLO)
1077                                         dev->stats.rx_over_errors++;
1078                                 if(rmdstat & RCV_CRC)
1079                                         dev->stats.rx_crc_errors++;
1080                                 if(rmdstat & RCV_BUF_ERR)
1081                                         dev->stats.rx_fifo_errors++;
1082                         }
1083                         if(!(csr0 & CSR0_MISS)) /* don't count errors twice */
1084                                 dev->stats.rx_errors++;
1085                 }
1086                 else if( (len = (rmdp->mlen & 0x0fff) - 4) >= 60)
1087                 {
1088 #ifdef RCV_VIA_SKB
1089                         struct sk_buff *skb = alloc_skb(R_BUF_SIZE+2+16,GFP_ATOMIC);
1090                         if (skb)
1091                                 skb_reserve(skb,16);
1092 #else
1093                         struct sk_buff *skb = dev_alloc_skb(len+2);
1094 #endif
1095                         if(skb)
1096                         {
1097                                 skb_reserve(skb,2);
1098 #ifdef RCV_VIA_SKB
1099                                 if( (unsigned long) (skb->data + R_BUF_SIZE) > 0x1000000) {
1100                                         skb_put(skb,len);
1101                                         skb_copy_to_linear_data(skb, (unsigned char *)(p->recv_skb[p->rmdnum]->data),len);
1102                                 }
1103                                 else {
1104                                         struct sk_buff *skb1 = p->recv_skb[p->rmdnum];
1105                                         skb_put(skb,R_BUF_SIZE);
1106                                         p->recv_skb[p->rmdnum] = skb;
1107                                         rmdp->u.buffer = (u32) isa_virt_to_bus(skb->data);
1108                                         skb = skb1;
1109                                         skb_trim(skb,len);
1110                                 }
1111 #else
1112                                 skb_put(skb,len);
1113                                 skb_copy_to_linear_data(skb, (unsigned char *) p->recvbounce[p->rmdnum],len);
1114 #endif
1115                                 dev->stats.rx_packets++;
1116                                 dev->stats.rx_bytes += len;
1117                                 skb->protocol=eth_type_trans(skb,dev);
1118                                 netif_rx(skb);
1119                         }
1120                         else
1121                         {
1122                                 printk(KERN_ERR "%s: can't alloc new sk_buff\n",dev->name);
1123                                 dev->stats.rx_dropped++;
1124                         }
1125                 }
1126                 else {
1127                         printk(KERN_INFO "%s: received runt packet\n",dev->name);
1128                         dev->stats.rx_errors++;
1129                 }
1130                 rmdp->blen = -(R_BUF_SIZE-8);
1131                 rmdp->mlen = 0;
1132                 rmdp->u.s.status = RCV_OWN; /* change owner */
1133                 p->rmdnum = (p->rmdnum + 1) & (RMDNUM-1);
1134                 rmdp = p->rmdhead + p->rmdnum;
1135         }
1136 }
1137
1138 /*
1139  * kick xmitter ..
1140  */
1141
1142 static void ni65_timeout(struct net_device *dev)
1143 {
1144         int i;
1145         struct priv *p = dev->ml_priv;
1146
1147         printk(KERN_ERR "%s: xmitter timed out, try to restart!\n",dev->name);
1148         for(i=0;i<TMDNUM;i++)
1149                 printk("%02x ",p->tmdhead[i].u.s.status);
1150         printk("\n");
1151         ni65_lance_reinit(dev);
1152         dev->trans_start = jiffies;
1153         netif_wake_queue(dev);
1154 }
1155
1156 /*
1157  *      Send a packet
1158  */
1159
1160 static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev)
1161 {
1162         struct priv *p = dev->ml_priv;
1163
1164         netif_stop_queue(dev);
1165
1166         if (test_and_set_bit(0, (void*)&p->lock)) {
1167                 printk(KERN_ERR "%s: Queue was locked.\n", dev->name);
1168                 return NETDEV_TX_BUSY;
1169         }
1170
1171         {
1172                 short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1173                 struct tmd *tmdp;
1174                 unsigned long flags;
1175
1176 #ifdef XMT_VIA_SKB
1177                 if( (unsigned long) (skb->data + skb->len) > 0x1000000) {
1178 #endif
1179
1180                         skb_copy_from_linear_data(skb, p->tmdbounce[p->tmdbouncenum],
1181                                       skb->len > T_BUF_SIZE ? T_BUF_SIZE :
1182                                                               skb->len);
1183                         if (len > skb->len)
1184                                 memset((char *)p->tmdbounce[p->tmdbouncenum]+skb->len, 0, len-skb->len);
1185                         dev_kfree_skb (skb);
1186
1187                         spin_lock_irqsave(&p->ring_lock, flags);
1188                         tmdp = p->tmdhead + p->tmdnum;
1189                         tmdp->u.buffer = (u32) isa_virt_to_bus(p->tmdbounce[p->tmdbouncenum]);
1190                         p->tmdbouncenum = (p->tmdbouncenum + 1) & (TMDNUM - 1);
1191
1192 #ifdef XMT_VIA_SKB
1193                 }
1194                 else {
1195                         spin_lock_irqsave(&p->ring_lock, flags);
1196
1197                         tmdp = p->tmdhead + p->tmdnum;
1198                         tmdp->u.buffer = (u32) isa_virt_to_bus(skb->data);
1199                         p->tmd_skb[p->tmdnum] = skb;
1200                 }
1201 #endif
1202                 tmdp->blen = -len;
1203
1204                 tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;
1205                 writedatareg(CSR0_TDMD | CSR0_INEA); /* enable xmit & interrupt */
1206
1207                 p->xmit_queued = 1;
1208                 p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
1209
1210                 if(p->tmdnum != p->tmdlast)
1211                         netif_wake_queue(dev);
1212
1213                 p->lock = 0;
1214                 dev->trans_start = jiffies;
1215
1216                 spin_unlock_irqrestore(&p->ring_lock, flags);
1217         }
1218
1219         return 0;
1220 }
1221
1222 static void set_multicast_list(struct net_device *dev)
1223 {
1224         if(!ni65_lance_reinit(dev))
1225                 printk(KERN_ERR "%s: Can't switch card into MC mode!\n",dev->name);
1226         netif_wake_queue(dev);
1227 }
1228
1229 #ifdef MODULE
1230 static struct net_device *dev_ni65;
1231
1232 module_param(irq, int, 0);
1233 module_param(io, int, 0);
1234 module_param(dma, int, 0);
1235 MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)");
1236 MODULE_PARM_DESC(io, "ni6510 I/O base address");
1237 MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)");
1238
1239 int __init init_module(void)
1240 {
1241         dev_ni65 = ni65_probe(-1);
1242         return IS_ERR(dev_ni65) ? PTR_ERR(dev_ni65) : 0;
1243 }
1244
1245 void __exit cleanup_module(void)
1246 {
1247         unregister_netdev(dev_ni65);
1248         cleanup_card(dev_ni65);
1249         free_netdev(dev_ni65);
1250 }
1251 #endif /* MODULE */
1252
1253 MODULE_LICENSE("GPL");