linux-bk/drivers/net/7990.c
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   1/* 
   2 * 7990.c -- LANCE ethernet IC generic routines. 
   3 * This is an attempt to separate out the bits of various ethernet
   4 * drivers that are common because they all use the AMD 7990 LANCE 
   5 * (Local Area Network Controller for Ethernet) chip.
   6 *
   7 * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
   8 *
   9 * Most of this stuff was obtained by looking at other LANCE drivers,
  10 * in particular a2065.[ch]. The AMD C-LANCE datasheet was also helpful.
  11 * NB: this was made easy by the fact that Jes Sorensen had cleaned up
  12 * most of a2025 and sunlance with the aim of merging them, so the 
  13 * common code was pretty obvious.
  14 */
  15#include <linux/module.h>
  16#include <linux/kernel.h>
  17#include <linux/sched.h>
  18#include <linux/types.h>
  19#include <linux/fcntl.h>
  20#include <linux/interrupt.h>
  21#include <linux/ioport.h>
  22#include <linux/in.h>
  23#include <linux/slab.h>
  24#include <linux/string.h>
  25#include <linux/delay.h>
  26#include <linux/init.h>
  27#include <linux/crc32.h>
  28#include <asm/system.h>
  29#include <asm/bitops.h>
  30#include <asm/io.h>
  31#include <asm/dma.h>
  32#include <asm/pgtable.h>
  33#include <linux/errno.h>
  34
  35/* Used for the temporal inet entries and routing */
  36#include <linux/socket.h>
  37#include <linux/route.h>
  38
  39#include <linux/dio.h>
  40
  41#include <linux/netdevice.h>
  42#include <linux/etherdevice.h>
  43#include <linux/skbuff.h>
  44
  45#include "7990.h"
  46
  47/* Lossage Factor Nine, Mr Sulu. */
  48#define WRITERAP(x) (lp->writerap(lp,x))
  49#define WRITERDP(x) (lp->writerdp(lp,x))
  50#define READRDP() (lp->readrdp(lp))
  51/* These used to be ll->rap = x, ll->rdp = x, and (ll->rdp). Sigh. 
  52 * If you want to switch them back then 
  53 * #define DECLARE_LL volatile struct lance_regs *ll = lp->ll
  54 */
  55#define DECLARE_LL /* nothing to declare */
  56
  57/* debugging output macros, various flavours */
  58/* #define TEST_HITS */
  59#ifdef UNDEF
  60#define PRINT_RINGS() \
  61do { \
  62        int t; \
  63        for (t=0; t < RX_RING_SIZE; t++) { \
  64                printk("R%d: @(%02X %04X) len %04X, mblen %04X, bits %02X\n",\
  65                       t, ib->brx_ring[t].rmd1_hadr, ib->brx_ring[t].rmd0,\
  66                       ib->brx_ring[t].length,\
  67                       ib->brx_ring[t].mblength, ib->brx_ring[t].rmd1_bits);\
  68        }\
  69        for (t=0; t < TX_RING_SIZE; t++) { \
  70                printk("T%d: @(%02X %04X) len %04X, misc %04X, bits %02X\n",\
  71                       t, ib->btx_ring[t].tmd1_hadr, ib->btx_ring[t].tmd0,\
  72                       ib->btx_ring[t].length,\
  73                       ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits);\
  74        }\
  75} while (0) 
  76#else
  77#define PRINT_RINGS()
  78#endif        
  79
  80/* Load the CSR registers. The LANCE has to be STOPped when we do this! */
  81static void load_csrs (struct lance_private *lp)
  82{
  83        volatile struct lance_init_block *aib = lp->lance_init_block;
  84        int leptr;
  85        DECLARE_LL;
  86
  87        leptr = LANCE_ADDR (aib);
  88
  89        WRITERAP(LE_CSR1);                        /* load address of init block */
  90        WRITERDP(leptr & 0xFFFF);
  91        WRITERAP(LE_CSR2);
  92        WRITERDP(leptr >> 16);
  93        WRITERAP(LE_CSR3);
  94        WRITERDP(lp->busmaster_regval);           /* set byteswap/ALEctrl/byte ctrl */
  95
  96        /* Point back to csr0 */
  97        WRITERAP(LE_CSR0);
  98}
  99
 100/* #define to 0 or 1 appropriately */
 101#define DEBUG_IRING 0
 102/* Set up the Lance Rx and Tx rings and the init block */
 103static void lance_init_ring (struct net_device *dev)
 104{
 105        struct lance_private *lp = (struct lance_private *) dev->priv;
 106        volatile struct lance_init_block *ib = lp->init_block;
 107        volatile struct lance_init_block *aib; /* for LANCE_ADDR computations */
 108        int leptr;
 109        int i;
 110
 111        aib = lp->lance_init_block;
 112
 113        lp->rx_new = lp->tx_new = 0;
 114        lp->rx_old = lp->tx_old = 0;
 115
 116        ib->mode = LE_MO_PROM;                             /* normal, enable Tx & Rx */
 117
 118        /* Copy the ethernet address to the lance init block
 119         * Notice that we do a byteswap if we're big endian.
 120         * [I think this is the right criterion; at least, sunlance,
 121         * a2065 and atarilance do the byteswap and lance.c (PC) doesn't.
 122         * However, the datasheet says that the BSWAP bit doesn't affect
 123         * the init block, so surely it should be low byte first for
 124         * everybody? Um.] 
 125         * We could define the ib->physaddr as three 16bit values and
 126         * use (addr[1] << 8) | addr[0] & co, but this is more efficient.
 127         */
 128#ifdef __BIG_ENDIAN
 129        ib->phys_addr [0] = dev->dev_addr [1];
 130        ib->phys_addr [1] = dev->dev_addr [0];
 131        ib->phys_addr [2] = dev->dev_addr [3];
 132        ib->phys_addr [3] = dev->dev_addr [2];
 133        ib->phys_addr [4] = dev->dev_addr [5];
 134        ib->phys_addr [5] = dev->dev_addr [4];
 135#else
 136        for (i=0; i<6; i++)
 137           ib->phys_addr[i] = dev->dev_addr[i];
 138#endif        
 139
 140        if (DEBUG_IRING)
 141                printk ("TX rings:\n");
 142    
 143        lp->tx_full = 0;
 144        /* Setup the Tx ring entries */
 145        for (i = 0; i < (1<<lp->lance_log_tx_bufs); i++) {
 146                leptr = LANCE_ADDR(&aib->tx_buf[i][0]);
 147                ib->btx_ring [i].tmd0      = leptr;
 148                ib->btx_ring [i].tmd1_hadr = leptr >> 16;
 149                ib->btx_ring [i].tmd1_bits = 0;
 150                ib->btx_ring [i].length    = 0xf000; /* The ones required by tmd2 */
 151                ib->btx_ring [i].misc      = 0;
 152                if (DEBUG_IRING) 
 153                   printk ("%d: 0x%8.8x\n", i, leptr);
 154        }
 155
 156        /* Setup the Rx ring entries */
 157        if (DEBUG_IRING)
 158                printk ("RX rings:\n");
 159        for (i = 0; i < (1<<lp->lance_log_rx_bufs); i++) {
 160                leptr = LANCE_ADDR(&aib->rx_buf[i][0]);
 161
 162                ib->brx_ring [i].rmd0      = leptr;
 163                ib->brx_ring [i].rmd1_hadr = leptr >> 16;
 164                ib->brx_ring [i].rmd1_bits = LE_R1_OWN;
 165                /* 0xf000 == bits that must be one (reserved, presumably) */
 166                ib->brx_ring [i].length    = -RX_BUFF_SIZE | 0xf000;
 167                ib->brx_ring [i].mblength  = 0;
 168                if (DEBUG_IRING)
 169                        printk ("%d: 0x%8.8x\n", i, leptr);
 170        }
 171
 172        /* Setup the initialization block */
 173    
 174        /* Setup rx descriptor pointer */
 175        leptr = LANCE_ADDR(&aib->brx_ring);
 176        ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
 177        ib->rx_ptr = leptr;
 178        if (DEBUG_IRING)
 179                printk ("RX ptr: %8.8x\n", leptr);
 180    
 181        /* Setup tx descriptor pointer */
 182        leptr = LANCE_ADDR(&aib->btx_ring);
 183        ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
 184        ib->tx_ptr = leptr;
 185        if (DEBUG_IRING)
 186                printk ("TX ptr: %8.8x\n", leptr);
 187
 188        /* Clear the multicast filter */
 189        ib->filter [0] = 0;
 190        ib->filter [1] = 0;
 191        PRINT_RINGS();
 192}
 193
 194/* LANCE must be STOPped before we do this, too... */
 195static int init_restart_lance (struct lance_private *lp)
 196{
 197        int i;
 198        DECLARE_LL;
 199
 200        WRITERAP(LE_CSR0);
 201        WRITERDP(LE_C0_INIT);
 202
 203        /* Need a hook here for sunlance ledma stuff */
 204
 205        /* Wait for the lance to complete initialization */
 206        for (i = 0; (i < 100) && !(READRDP() & (LE_C0_ERR | LE_C0_IDON)); i++)
 207                barrier();
 208        if ((i == 100) || (READRDP() & LE_C0_ERR)) {
 209                printk ("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, READRDP());
 210                return -1;
 211        }
 212
 213        /* Clear IDON by writing a "1", enable interrupts and start lance */
 214        WRITERDP(LE_C0_IDON);
 215        WRITERDP(LE_C0_INEA | LE_C0_STRT);
 216
 217        return 0;
 218}
 219
 220static int lance_reset (struct net_device *dev)
 221{
 222        struct lance_private *lp = (struct lance_private *)dev->priv;
 223        int status;
 224        DECLARE_LL;
 225    
 226        /* Stop the lance */
 227        WRITERAP(LE_CSR0);
 228        WRITERDP(LE_C0_STOP);
 229
 230        load_csrs (lp);
 231        lance_init_ring (dev);
 232        dev->trans_start = jiffies;
 233        status = init_restart_lance (lp);
 234#ifdef DEBUG_DRIVER
 235        printk ("Lance restart=%d\n", status);
 236#endif
 237        return status;
 238}
 239
 240static int lance_rx (struct net_device *dev)
 241{
 242        struct lance_private *lp = (struct lance_private *) dev->priv;
 243        volatile struct lance_init_block *ib = lp->init_block;
 244        volatile struct lance_rx_desc *rd;
 245        unsigned char bits;
 246        int len = 0;                    /* XXX shut up gcc warnings */
 247        struct sk_buff *skb = 0;        /* XXX shut up gcc warnings */
 248#ifdef TEST_HITS
 249        int i;
 250#endif
 251        DECLARE_LL;
 252
 253#ifdef TEST_HITS
 254        printk ("[");
 255        for (i = 0; i < RX_RING_SIZE; i++) {
 256                if (i == lp->rx_new)
 257                        printk ("%s",
 258                                ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "_" : "X");
 259                else
 260                        printk ("%s",
 261                                ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "." : "1");
 262        }
 263        printk ("]");
 264#endif
 265    
 266        WRITERDP(LE_C0_RINT | LE_C0_INEA);     /* ack Rx int, reenable ints */
 267        for (rd = &ib->brx_ring [lp->rx_new];     /* For each Rx ring we own... */
 268             !((bits = rd->rmd1_bits) & LE_R1_OWN);
 269             rd = &ib->brx_ring [lp->rx_new]) {
 270
 271                /* We got an incomplete frame? */
 272                if ((bits & LE_R1_POK) != LE_R1_POK) {
 273                        lp->stats.rx_over_errors++;
 274                        lp->stats.rx_errors++;
 275                        continue;
 276                } else if (bits & LE_R1_ERR) {
 277                        /* Count only the end frame as a rx error,
 278                         * not the beginning
 279                         */
 280                        if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++;
 281                        if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++;
 282                        if (bits & LE_R1_OFL) lp->stats.rx_over_errors++;
 283                        if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++;
 284                        if (bits & LE_R1_EOP) lp->stats.rx_errors++;
 285                } else {
 286                        len = (rd->mblength & 0xfff) - 4;
 287                        skb = dev_alloc_skb (len+2);
 288
 289                        if (skb == 0) {
 290                                printk ("%s: Memory squeeze, deferring packet.\n",
 291                                        dev->name);
 292                                lp->stats.rx_dropped++;
 293                                rd->mblength = 0;
 294                                rd->rmd1_bits = LE_R1_OWN;
 295                                lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
 296                                return 0;
 297                        }
 298            
 299                        skb->dev = dev;
 300                        skb_reserve (skb, 2);           /* 16 byte align */
 301                        skb_put (skb, len);             /* make room */
 302                        eth_copy_and_sum(skb,
 303                                         (unsigned char *)&(ib->rx_buf [lp->rx_new][0]),
 304                                         len, 0);
 305                        skb->protocol = eth_type_trans (skb, dev);
 306                        netif_rx (skb);
 307                        dev->last_rx = jiffies;
 308                        lp->stats.rx_packets++;
 309                        lp->stats.rx_bytes += len;
 310                }
 311
 312                /* Return the packet to the pool */
 313                rd->mblength = 0;
 314                rd->rmd1_bits = LE_R1_OWN;
 315                lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
 316        }
 317        return 0;
 318}
 319
 320static int lance_tx (struct net_device *dev)
 321{
 322        struct lance_private *lp = (struct lance_private *) dev->priv;
 323        volatile struct lance_init_block *ib = lp->init_block;
 324        volatile struct lance_tx_desc *td;
 325        int i, j;
 326        int status;
 327        DECLARE_LL;
 328
 329        /* csr0 is 2f3 */
 330        WRITERDP(LE_C0_TINT | LE_C0_INEA);
 331        /* csr0 is 73 */
 332
 333        j = lp->tx_old;
 334        for (i = j; i != lp->tx_new; i = j) {
 335                td = &ib->btx_ring [i];
 336
 337                /* If we hit a packet not owned by us, stop */
 338                if (td->tmd1_bits & LE_T1_OWN)
 339                        break;
 340                
 341                if (td->tmd1_bits & LE_T1_ERR) {
 342                        status = td->misc;
 343            
 344                        lp->stats.tx_errors++;
 345                        if (status & LE_T3_RTY)  lp->stats.tx_aborted_errors++;
 346                        if (status & LE_T3_LCOL) lp->stats.tx_window_errors++;
 347
 348                        if (status & LE_T3_CLOS) {
 349                                lp->stats.tx_carrier_errors++;
 350                                if (lp->auto_select) {
 351                                        lp->tpe = 1 - lp->tpe;
 352                                        printk("%s: Carrier Lost, trying %s\n",
 353                                               dev->name, lp->tpe?"TPE":"AUI");
 354                                        /* Stop the lance */
 355                                        WRITERAP(LE_CSR0);
 356                                        WRITERDP(LE_C0_STOP);
 357                                        lance_init_ring (dev);
 358                                        load_csrs (lp);
 359                                        init_restart_lance (lp);
 360                                        return 0;
 361                                }
 362                        }
 363
 364                        /* buffer errors and underflows turn off the transmitter */
 365                        /* Restart the adapter */
 366                        if (status & (LE_T3_BUF|LE_T3_UFL)) {
 367                                lp->stats.tx_fifo_errors++;
 368
 369                                printk ("%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
 370                                        dev->name);
 371                                /* Stop the lance */
 372                                WRITERAP(LE_CSR0);
 373                                WRITERDP(LE_C0_STOP);
 374                                lance_init_ring (dev);
 375                                load_csrs (lp);
 376                                init_restart_lance (lp);
 377                                return 0;
 378                        }
 379                } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {
 380                        /*
 381                         * So we don't count the packet more than once.
 382                         */
 383                        td->tmd1_bits &= ~(LE_T1_POK);
 384
 385                        /* One collision before packet was sent. */
 386                        if (td->tmd1_bits & LE_T1_EONE)
 387                                lp->stats.collisions++;
 388
 389                        /* More than one collision, be optimistic. */
 390                        if (td->tmd1_bits & LE_T1_EMORE)
 391                                lp->stats.collisions += 2;
 392
 393                        lp->stats.tx_packets++;
 394                }
 395        
 396                j = (j + 1) & lp->tx_ring_mod_mask;
 397        }
 398        lp->tx_old = j;
 399        WRITERDP(LE_C0_TINT | LE_C0_INEA);
 400        return 0;
 401}
 402
 403static void lance_interrupt (int irq, void *dev_id, struct pt_regs *regs)
 404{
 405        struct net_device *dev = (struct net_device *)dev_id;
 406        struct lance_private *lp = (struct lance_private *)dev->priv;
 407        int csr0;
 408        DECLARE_LL;
 409
 410        spin_lock (&lp->devlock);
 411
 412        WRITERAP(LE_CSR0);              /* LANCE Controller Status */
 413        csr0 = READRDP();
 414
 415        PRINT_RINGS();
 416        
 417        if (!(csr0 & LE_C0_INTR)) {     /* Check if any interrupt has */
 418                spin_lock (&lp->devlock);
 419                return;                 /* been generated by the Lance. */
 420        }
 421
 422        /* Acknowledge all the interrupt sources ASAP */
 423        WRITERDP(csr0 & ~(LE_C0_INEA|LE_C0_TDMD|LE_C0_STOP|LE_C0_STRT|LE_C0_INIT));
 424
 425        if ((csr0 & LE_C0_ERR)) {
 426                /* Clear the error condition */
 427                WRITERDP(LE_C0_BABL|LE_C0_ERR|LE_C0_MISS|LE_C0_INEA);
 428        }
 429
 430        if (csr0 & LE_C0_RINT)
 431                lance_rx (dev);
 432
 433        if (csr0 & LE_C0_TINT)
 434                lance_tx (dev);
 435
 436        /* Log misc errors. */
 437        if (csr0 & LE_C0_BABL)
 438                lp->stats.tx_errors++;       /* Tx babble. */
 439        if (csr0 & LE_C0_MISS)
 440                lp->stats.rx_errors++;       /* Missed a Rx frame. */
 441        if (csr0 & LE_C0_MERR) {
 442                printk("%s: Bus master arbitration failure, status %4.4x.\n", 
 443                       dev->name, csr0);
 444                /* Restart the chip. */
 445                WRITERDP(LE_C0_STRT);
 446        }
 447
 448        if (lp->tx_full && netif_queue_stopped(dev) && (TX_BUFFS_AVAIL >= 0)) {
 449                lp->tx_full = 0;
 450                netif_wake_queue (dev);
 451        }
 452        
 453        WRITERAP(LE_CSR0);
 454        WRITERDP(LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA);
 455
 456        spin_unlock (&lp->devlock);
 457}
 458
 459int lance_open (struct net_device *dev)
 460{
 461        struct lance_private *lp = (struct lance_private *)dev->priv;
 462        int res;
 463        DECLARE_LL;
 464        
 465        /* Install the Interrupt handler. Or we could shunt this out to specific drivers? */
 466        if (request_irq(lp->irq, lance_interrupt, 0, lp->name, dev))
 467                return -EAGAIN;
 468
 469        res = lance_reset(dev);
 470        lp->devlock = SPIN_LOCK_UNLOCKED;
 471        netif_start_queue (dev);
 472
 473        return res;
 474}
 475
 476int lance_close (struct net_device *dev)
 477{
 478        struct lance_private *lp = (struct lance_private *) dev->priv;
 479        DECLARE_LL;
 480        
 481        netif_stop_queue (dev);
 482
 483        /* Stop the LANCE */
 484        WRITERAP(LE_CSR0);
 485        WRITERDP(LE_C0_STOP);
 486
 487        free_irq(lp->irq, dev);
 488
 489        return 0;
 490}
 491
 492void lance_tx_timeout(struct net_device *dev)
 493{
 494        printk("lance_tx_timeout\n");
 495        lance_reset(dev);
 496        dev->trans_start = jiffies;
 497        netif_wake_queue (dev);
 498}
 499
 500
 501int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
 502{
 503        struct lance_private *lp = (struct lance_private *)dev->priv;
 504        volatile struct lance_init_block *ib = lp->init_block;
 505        int entry, skblen, len;
 506        static int outs;
 507        unsigned long flags;
 508        DECLARE_LL;
 509
 510        if (!TX_BUFFS_AVAIL)
 511                return -1;
 512
 513        netif_stop_queue (dev);
 514
 515        skblen = skb->len;
 516
 517#ifdef DEBUG_DRIVER
 518        /* dump the packet */
 519        {
 520                int i;
 521        
 522                for (i = 0; i < 64; i++) {
 523                        if ((i % 16) == 0)
 524                                printk ("\n");
 525                        printk ("%2.2x ", skb->data [i]);
 526                }
 527        }
 528#endif
 529        len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
 530        entry = lp->tx_new & lp->tx_ring_mod_mask;
 531        ib->btx_ring [entry].length = (-len) | 0xf000;
 532        ib->btx_ring [entry].misc = 0;
 533    
 534        memcpy ((char *)&ib->tx_buf [entry][0], skb->data, skblen);
 535    
 536        /* Now, give the packet to the lance */
 537        ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
 538        lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask;
 539
 540        outs++;
 541        /* Kick the lance: transmit now */
 542        WRITERDP(LE_C0_INEA | LE_C0_TDMD);
 543        dev->trans_start = jiffies;
 544        dev_kfree_skb (skb);
 545    
 546        spin_lock_irqsave (&lp->devlock, flags);
 547        if (TX_BUFFS_AVAIL)
 548                netif_start_queue (dev);
 549        else
 550                lp->tx_full = 1;
 551        spin_unlock_irqrestore (&lp->devlock, flags);
 552
 553        return 0;
 554}
 555
 556struct net_device_stats *lance_get_stats (struct net_device *dev)
 557{
 558        struct lance_private *lp = (struct lance_private *) dev->priv;
 559
 560        return &lp->stats;
 561}
 562
 563/* taken from the depca driver via a2065.c */
 564static void lance_load_multicast (struct net_device *dev)
 565{
 566        struct lance_private *lp = (struct lance_private *) dev->priv;
 567        volatile struct lance_init_block *ib = lp->init_block;
 568        volatile u16 *mcast_table = (u16 *)&ib->filter;
 569        struct dev_mc_list *dmi=dev->mc_list;
 570        char *addrs;
 571        int i;
 572        u32 crc;
 573        
 574        /* set all multicast bits */
 575        if (dev->flags & IFF_ALLMULTI){ 
 576                ib->filter [0] = 0xffffffff;
 577                ib->filter [1] = 0xffffffff;
 578                return;
 579        }
 580        /* clear the multicast filter */
 581        ib->filter [0] = 0;
 582        ib->filter [1] = 0;
 583
 584        /* Add addresses */
 585        for (i = 0; i < dev->mc_count; i++){
 586                addrs = dmi->dmi_addr;
 587                dmi   = dmi->next;
 588
 589                /* multicast address? */
 590                if (!(*addrs & 1))
 591                        continue;
 592                
 593                crc = ether_crc_le(6, addrs);
 594                crc = crc >> 26;
 595                mcast_table [crc >> 4] |= 1 << (crc & 0xf);
 596        }
 597        return;
 598}
 599
 600
 601void lance_set_multicast (struct net_device *dev)
 602{
 603        struct lance_private *lp = (struct lance_private *) dev->priv;
 604        volatile struct lance_init_block *ib = lp->init_block;
 605        int stopped;
 606        DECLARE_LL;
 607
 608        stopped = netif_queue_stopped(dev);
 609        if (!stopped)
 610                netif_stop_queue (dev);
 611
 612        while (lp->tx_old != lp->tx_new)
 613                schedule();
 614
 615        WRITERAP(LE_CSR0);
 616        WRITERDP(LE_C0_STOP);
 617        lance_init_ring (dev);
 618
 619        if (dev->flags & IFF_PROMISC) {
 620                ib->mode |= LE_MO_PROM;
 621        } else {
 622                ib->mode &= ~LE_MO_PROM;
 623                lance_load_multicast (dev);
 624        }
 625        load_csrs (lp);
 626        init_restart_lance (lp);
 627
 628        if (!stopped)
 629                netif_start_queue (dev);
 630}
 631
 632MODULE_LICENSE("GPL");
 633
The original LXR software by the LXR community, this experimental version by lxr@linux.no.
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.