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/crc32.h> 16#include <linux/delay.h> 17#include <linux/errno.h> 18#include <linux/netdevice.h> 19#include <linux/etherdevice.h> 20#include <linux/init.h> 21#include <linux/module.h> 22#include <linux/kernel.h> 23#include <linux/types.h> 24#include <linux/fcntl.h> 25#include <linux/interrupt.h> 26#include <linux/ioport.h> 27#include <linux/in.h> 28#include <linux/route.h> 29#include <linux/slab.h> 30#include <linux/string.h> 31#include <linux/skbuff.h> 32#include <asm/irq.h> 33/* Used for the temporal inet entries and routing */ 34#include <linux/socket.h> 35#include <linux/bitops.h> 36 37#include <asm/system.h> 38#include <asm/io.h> 39#include <asm/dma.h> 40#include <asm/pgtable.h> 41#ifdef CONFIG_HP300 42#include <asm/blinken.h> 43#endif 44 45#include "7990.h" 46 47#define WRITERAP(lp,x) out_be16(lp->base + LANCE_RAP, (x)) 48#define WRITERDP(lp,x) out_be16(lp->base + LANCE_RDP, (x)) 49#define READRDP(lp) in_be16(lp->base + LANCE_RDP) 50 51#if defined(CONFIG_HPLANCE) || defined(CONFIG_HPLANCE_MODULE) 52#include "hplance.h" 53 54#undef WRITERAP 55#undef WRITERDP 56#undef READRDP 57 58#if defined(CONFIG_MVME147_NET) || defined(CONFIG_MVME147_NET_MODULE) 59 60/* Lossage Factor Nine, Mr Sulu. */ 61#define WRITERAP(lp,x) (lp->writerap(lp,x)) 62#define WRITERDP(lp,x) (lp->writerdp(lp,x)) 63#define READRDP(lp) (lp->readrdp(lp)) 64 65#else 66 67/* These inlines can be used if only CONFIG_HPLANCE is defined */ 68static inline void WRITERAP(struct lance_private *lp, __u16 value) 69{ 70 do { 71 out_be16(lp->base + HPLANCE_REGOFF + LANCE_RAP, value); 72 } while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0); 73} 74 75static inline void WRITERDP(struct lance_private *lp, __u16 value) 76{ 77 do { 78 out_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP, value); 79 } while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0); 80} 81 82static inline __u16 READRDP(struct lance_private *lp) 83{ 84 __u16 value; 85 do { 86 value = in_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP); 87 } while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0); 88 return value; 89} 90 91#endif 92#endif /* CONFIG_HPLANCE || CONFIG_HPLANCE_MODULE */ 93 94/* debugging output macros, various flavours */ 95/* #define TEST_HITS */ 96#ifdef UNDEF 97#define PRINT_RINGS() \ 98do { \ 99 int t; \ 100 for (t=0; t < RX_RING_SIZE; t++) { \ 101 printk("R%d: @(%02X %04X) len %04X, mblen %04X, bits %02X\n",\ 102 t, ib->brx_ring[t].rmd1_hadr, ib->brx_ring[t].rmd0,\ 103 ib->brx_ring[t].length,\ 104 ib->brx_ring[t].mblength, ib->brx_ring[t].rmd1_bits);\ 105 }\ 106 for (t=0; t < TX_RING_SIZE; t++) { \ 107 printk("T%d: @(%02X %04X) len %04X, misc %04X, bits %02X\n",\ 108 t, ib->btx_ring[t].tmd1_hadr, ib->btx_ring[t].tmd0,\ 109 ib->btx_ring[t].length,\ 110 ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits);\ 111 }\ 112} while (0) 113#else 114#define PRINT_RINGS() 115#endif 116 117/* Load the CSR registers. The LANCE has to be STOPped when we do this! */ 118static void load_csrs (struct lance_private *lp) 119{ 120 volatile struct lance_init_block *aib = lp->lance_init_block; 121 int leptr; 122 123 leptr = LANCE_ADDR (aib); 124 125 WRITERAP(lp, LE_CSR1); /* load address of init block */ 126 WRITERDP(lp, leptr & 0xFFFF); 127 WRITERAP(lp, LE_CSR2); 128 WRITERDP(lp, leptr >> 16); 129 WRITERAP(lp, LE_CSR3); 130 WRITERDP(lp, lp->busmaster_regval); /* set byteswap/ALEctrl/byte ctrl */ 131 132 /* Point back to csr0 */ 133 WRITERAP(lp, LE_CSR0); 134} 135 136/* #define to 0 or 1 appropriately */ 137#define DEBUG_IRING 0 138/* Set up the Lance Rx and Tx rings and the init block */ 139static void lance_init_ring (struct net_device *dev) 140{ 141 struct lance_private *lp = netdev_priv(dev); 142 volatile struct lance_init_block *ib = lp->init_block; 143 volatile struct lance_init_block *aib; /* for LANCE_ADDR computations */ 144 int leptr; 145 int i; 146 147 aib = lp->lance_init_block; 148 149 lp->rx_new = lp->tx_new = 0; 150 lp->rx_old = lp->tx_old = 0; 151 152 ib->mode = LE_MO_PROM; /* normal, enable Tx & Rx */ 153 154 /* Copy the ethernet address to the lance init block 155 * Notice that we do a byteswap if we're big endian. 156 * [I think this is the right criterion; at least, sunlance, 157 * a2065 and atarilance do the byteswap and lance.c (PC) doesn't. 158 * However, the datasheet says that the BSWAP bit doesn't affect 159 * the init block, so surely it should be low byte first for 160 * everybody? Um.] 161 * We could define the ib->physaddr as three 16bit values and 162 * use (addr[1] << 8) | addr[0] & co, but this is more efficient. 163 */ 164#ifdef __BIG_ENDIAN 165 ib->phys_addr [0] = dev->dev_addr [1]; 166 ib->phys_addr [1] = dev->dev_addr [0]; 167 ib->phys_addr [2] = dev->dev_addr [3]; 168 ib->phys_addr [3] = dev->dev_addr [2]; 169 ib->phys_addr [4] = dev->dev_addr [5]; 170 ib->phys_addr [5] = dev->dev_addr [4]; 171#else 172 for (i=0; i<6; i++) 173 ib->phys_addr[i] = dev->dev_addr[i]; 174#endif 175 176 if (DEBUG_IRING) 177 printk ("TX rings:\n"); 178 179 lp->tx_full = 0; 180 /* Setup the Tx ring entries */ 181 for (i = 0; i < (1<<lp->lance_log_tx_bufs); i++) { 182 leptr = LANCE_ADDR(&aib->tx_buf[i][0]); 183 ib->btx_ring [i].tmd0 = leptr; 184 ib->btx_ring [i].tmd1_hadr = leptr >> 16; 185 ib->btx_ring [i].tmd1_bits = 0; 186 ib->btx_ring [i].length = 0xf000; /* The ones required by tmd2 */ 187 ib->btx_ring [i].misc = 0; 188 if (DEBUG_IRING) 189 printk ("%d: 0x%8.8x\n", i, leptr); 190 } 191 192 /* Setup the Rx ring entries */ 193 if (DEBUG_IRING) 194 printk ("RX rings:\n"); 195 for (i = 0; i < (1<<lp->lance_log_rx_bufs); i++) { 196 leptr = LANCE_ADDR(&aib->rx_buf[i][0]); 197 198 ib->brx_ring [i].rmd0 = leptr; 199 ib->brx_ring [i].rmd1_hadr = leptr >> 16; 200 ib->brx_ring [i].rmd1_bits = LE_R1_OWN; 201 /* 0xf000 == bits that must be one (reserved, presumably) */ 202 ib->brx_ring [i].length = -RX_BUFF_SIZE | 0xf000; 203 ib->brx_ring [i].mblength = 0; 204 if (DEBUG_IRING) 205 printk ("%d: 0x%8.8x\n", i, leptr); 206 } 207 208 /* Setup the initialization block */ 209 210 /* Setup rx descriptor pointer */ 211 leptr = LANCE_ADDR(&aib->brx_ring); 212 ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16); 213 ib->rx_ptr = leptr; 214 if (DEBUG_IRING) 215 printk ("RX ptr: %8.8x\n", leptr); 216 217 /* Setup tx descriptor pointer */ 218 leptr = LANCE_ADDR(&aib->btx_ring); 219 ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16); 220 ib->tx_ptr = leptr; 221 if (DEBUG_IRING) 222 printk ("TX ptr: %8.8x\n", leptr); 223 224 /* Clear the multicast filter */ 225 ib->filter [0] = 0; 226 ib->filter [1] = 0; 227 PRINT_RINGS(); 228} 229 230/* LANCE must be STOPped before we do this, too... */ 231static int init_restart_lance (struct lance_private *lp) 232{ 233 int i; 234 235 WRITERAP(lp, LE_CSR0); 236 WRITERDP(lp, LE_C0_INIT); 237 238 /* Need a hook here for sunlance ledma stuff */ 239 240 /* Wait for the lance to complete initialization */ 241 for (i = 0; (i < 100) && !(READRDP(lp) & (LE_C0_ERR | LE_C0_IDON)); i++) 242 barrier(); 243 if ((i == 100) || (READRDP(lp) & LE_C0_ERR)) { 244 printk ("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, READRDP(lp)); 245 return -1; 246 } 247 248 /* Clear IDON by writing a "1", enable interrupts and start lance */ 249 WRITERDP(lp, LE_C0_IDON); 250 WRITERDP(lp, LE_C0_INEA | LE_C0_STRT); 251 252 return 0; 253} 254 255static int lance_reset (struct net_device *dev) 256{ 257 struct lance_private *lp = netdev_priv(dev); 258 int status; 259 260 /* Stop the lance */ 261 WRITERAP(lp, LE_CSR0); 262 WRITERDP(lp, LE_C0_STOP); 263 264 load_csrs (lp); 265 lance_init_ring (dev); 266 dev->trans_start = jiffies; 267 status = init_restart_lance (lp); 268#ifdef DEBUG_DRIVER 269 printk ("Lance restart=%d\n", status); 270#endif 271 return status; 272} 273 274static int lance_rx (struct net_device *dev) 275{ 276 struct lance_private *lp = netdev_priv(dev); 277 volatile struct lance_init_block *ib = lp->init_block; 278 volatile struct lance_rx_desc *rd; 279 unsigned char bits; 280 int len = 0; 281 struct sk_buff *skb = 0; 282#ifdef TEST_HITS 283 int i; 284#endif 285 286#ifdef TEST_HITS 287 printk ("["); 288 for (i = 0; i < RX_RING_SIZE; i++) { 289 if (i == lp->rx_new) 290 printk ("%s", 291 ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "_" : "X"); 292 else 293 printk ("%s", 294 ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "." : "1"); 295 } 296 printk ("]"); 297#endif 298#ifdef CONFIG_HP300 299 blinken_leds(0x40, 0); 300#endif 301 WRITERDP(lp, LE_C0_RINT | LE_C0_INEA); /* ack Rx int, reenable ints */ 302 for (rd = &ib->brx_ring [lp->rx_new]; /* For each Rx ring we own... */ 303 !((bits = rd->rmd1_bits) & LE_R1_OWN); 304 rd = &ib->brx_ring [lp->rx_new]) { 305 306 /* We got an incomplete frame? */ 307 if ((bits & LE_R1_POK) != LE_R1_POK) { 308 lp->stats.rx_over_errors++; 309 lp->stats.rx_errors++; 310 continue; 311 } else if (bits & LE_R1_ERR) { 312 /* Count only the end frame as a rx error, 313 * not the beginning 314 */ 315 if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++; 316 if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++; 317 if (bits & LE_R1_OFL) lp->stats.rx_over_errors++; 318 if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++; 319 if (bits & LE_R1_EOP) lp->stats.rx_errors++; 320 } else { 321 len = (rd->mblength & 0xfff) - 4; 322 skb = dev_alloc_skb (len+2); 323 324 if (skb == 0) { 325 printk ("%s: Memory squeeze, deferring packet.\n", 326 dev->name); 327 lp->stats.rx_dropped++; 328 rd->mblength = 0; 329 rd->rmd1_bits = LE_R1_OWN; 330 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; 331 return 0; 332 } 333 334 skb_reserve (skb, 2); /* 16 byte align */ 335 skb_put (skb, len); /* make room */ 336 eth_copy_and_sum(skb, 337 (unsigned char *)&(ib->rx_buf [lp->rx_new][0]), 338 len, 0); 339 skb->protocol = eth_type_trans (skb, dev); 340 netif_rx (skb); 341 dev->last_rx = jiffies; 342 lp->stats.rx_packets++; 343 lp->stats.rx_bytes += len; 344 } 345 346 /* Return the packet to the pool */ 347 rd->mblength = 0; 348 rd->rmd1_bits = LE_R1_OWN; 349 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; 350 } 351 return 0; 352} 353 354static int lance_tx (struct net_device *dev) 355{ 356 struct lance_private *lp = netdev_priv(dev); 357 volatile struct lance_init_block *ib = lp->init_block; 358 volatile struct lance_tx_desc *td; 359 int i, j; 360 int status; 361 362#ifdef CONFIG_HP300 363 blinken_leds(0x80, 0); 364#endif 365 /* csr0 is 2f3 */ 366 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA); 367 /* csr0 is 73 */ 368 369 j = lp->tx_old; 370 for (i = j; i != lp->tx_new; i = j) { 371 td = &ib->btx_ring [i]; 372 373 /* If we hit a packet not owned by us, stop */ 374 if (td->tmd1_bits & LE_T1_OWN) 375 break; 376 377 if (td->tmd1_bits & LE_T1_ERR) { 378 status = td->misc; 379 380 lp->stats.tx_errors++; 381 if (status & LE_T3_RTY) lp->stats.tx_aborted_errors++; 382 if (status & LE_T3_LCOL) lp->stats.tx_window_errors++; 383 384 if (status & LE_T3_CLOS) { 385 lp->stats.tx_carrier_errors++; 386 if (lp->auto_select) { 387 lp->tpe = 1 - lp->tpe; 388 printk("%s: Carrier Lost, trying %s\n", 389 dev->name, lp->tpe?"TPE":"AUI"); 390 /* Stop the lance */ 391 WRITERAP(lp, LE_CSR0); 392 WRITERDP(lp, LE_C0_STOP); 393 lance_init_ring (dev); 394 load_csrs (lp); 395 init_restart_lance (lp); 396 return 0; 397 } 398 } 399 400 /* buffer errors and underflows turn off the transmitter */ 401 /* Restart the adapter */ 402 if (status & (LE_T3_BUF|LE_T3_UFL)) { 403 lp->stats.tx_fifo_errors++; 404 405 printk ("%s: Tx: ERR_BUF|ERR_UFL, restarting\n", 406 dev->name); 407 /* Stop the lance */ 408 WRITERAP(lp, LE_CSR0); 409 WRITERDP(lp, LE_C0_STOP); 410 lance_init_ring (dev); 411 load_csrs (lp); 412 init_restart_lance (lp); 413 return 0; 414 } 415 } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) { 416 /* 417 * So we don't count the packet more than once. 418 */ 419 td->tmd1_bits &= ~(LE_T1_POK); 420 421 /* One collision before packet was sent. */ 422 if (td->tmd1_bits & LE_T1_EONE) 423 lp->stats.collisions++; 424 425 /* More than one collision, be optimistic. */ 426 if (td->tmd1_bits & LE_T1_EMORE) 427 lp->stats.collisions += 2; 428 429 lp->stats.tx_packets++; 430 } 431 432 j = (j + 1) & lp->tx_ring_mod_mask; 433 } 434 lp->tx_old = j; 435 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA); 436 return 0; 437} 438 439static irqreturn_t 440lance_interrupt (int irq, void *dev_id) 441{ 442 struct net_device *dev = (struct net_device *)dev_id; 443 struct lance_private *lp = netdev_priv(dev); 444 int csr0; 445 446 spin_lock (&lp->devlock); 447 448 WRITERAP(lp, LE_CSR0); /* LANCE Controller Status */ 449 csr0 = READRDP(lp); 450 451 PRINT_RINGS(); 452 453 if (!(csr0 & LE_C0_INTR)) { /* Check if any interrupt has */ 454 spin_unlock (&lp->devlock); 455 return IRQ_NONE; /* been generated by the Lance. */ 456 } 457 458 /* Acknowledge all the interrupt sources ASAP */ 459 WRITERDP(lp, csr0 & ~(LE_C0_INEA|LE_C0_TDMD|LE_C0_STOP|LE_C0_STRT|LE_C0_INIT)); 460 461 if ((csr0 & LE_C0_ERR)) { 462 /* Clear the error condition */ 463 WRITERDP(lp, LE_C0_BABL|LE_C0_ERR|LE_C0_MISS|LE_C0_INEA); 464 } 465 466 if (csr0 & LE_C0_RINT) 467 lance_rx (dev); 468 469 if (csr0 & LE_C0_TINT) 470 lance_tx (dev); 471 472 /* Log misc errors. */ 473 if (csr0 & LE_C0_BABL) 474 lp->stats.tx_errors++; /* Tx babble. */ 475 if (csr0 & LE_C0_MISS) 476 lp->stats.rx_errors++; /* Missed a Rx frame. */ 477 if (csr0 & LE_C0_MERR) { 478 printk("%s: Bus master arbitration failure, status %4.4x.\n", 479 dev->name, csr0); 480 /* Restart the chip. */ 481 WRITERDP(lp, LE_C0_STRT); 482 } 483 484 if (lp->tx_full && netif_queue_stopped(dev) && (TX_BUFFS_AVAIL >= 0)) { 485 lp->tx_full = 0; 486 netif_wake_queue (dev); 487 } 488 489 WRITERAP(lp, LE_CSR0); 490 WRITERDP(lp, LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA); 491 492 spin_unlock (&lp->devlock); 493 return IRQ_HANDLED; 494} 495 496int lance_open (struct net_device *dev) 497{ 498 struct lance_private *lp = netdev_priv(dev); 499 int res; 500 501 /* Install the Interrupt handler. Or we could shunt this out to specific drivers? */ 502 if (request_irq(lp->irq, lance_interrupt, IRQF_SHARED, lp->name, dev)) 503 return -EAGAIN; 504 505 res = lance_reset(dev); 506 spin_lock_init(&lp->devlock); 507 netif_start_queue (dev); 508 509 return res; 510} 511 512int lance_close (struct net_device *dev) 513{ 514 struct lance_private *lp = netdev_priv(dev); 515 516 netif_stop_queue (dev); 517 518 /* Stop the LANCE */ 519 WRITERAP(lp, LE_CSR0); 520 WRITERDP(lp, LE_C0_STOP); 521 522 free_irq(lp->irq, dev); 523 524 return 0; 525} 526 527void lance_tx_timeout(struct net_device *dev) 528{ 529 printk("lance_tx_timeout\n"); 530 lance_reset(dev); 531 dev->trans_start = jiffies; 532 netif_wake_queue (dev); 533} 534 535 536int lance_start_xmit (struct sk_buff *skb, struct net_device *dev) 537{ 538 struct lance_private *lp = netdev_priv(dev); 539 volatile struct lance_init_block *ib = lp->init_block; 540 int entry, skblen, len; 541 static int outs; 542 unsigned long flags; 543 544 if (!TX_BUFFS_AVAIL) 545 return -1; 546 547 netif_stop_queue (dev); 548 549 skblen = skb->len; 550 551#ifdef DEBUG_DRIVER 552 /* dump the packet */ 553 { 554 int i; 555 556 for (i = 0; i < 64; i++) { 557 if ((i % 16) == 0) 558 printk ("\n"); 559 printk ("%2.2x ", skb->data [i]); 560 } 561 } 562#endif 563 len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen; 564 entry = lp->tx_new & lp->tx_ring_mod_mask; 565 ib->btx_ring [entry].length = (-len) | 0xf000; 566 ib->btx_ring [entry].misc = 0; 567 568 if (skb->len < ETH_ZLEN) 569 memset((void *)&ib->tx_buf[entry][0], 0, ETH_ZLEN); 570 skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen); 571 572 /* Now, give the packet to the lance */ 573 ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN); 574 lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask; 575 576 outs++; 577 /* Kick the lance: transmit now */ 578 WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD); 579 dev->trans_start = jiffies; 580 dev_kfree_skb (skb); 581 582 spin_lock_irqsave (&lp->devlock, flags); 583 if (TX_BUFFS_AVAIL) 584 netif_start_queue (dev); 585 else 586 lp->tx_full = 1; 587 spin_unlock_irqrestore (&lp->devlock, flags); 588 589 return 0; 590} 591 592struct net_device_stats *lance_get_stats (struct net_device *dev) 593{ 594 struct lance_private *lp = netdev_priv(dev); 595 596 return &lp->stats; 597} 598 599/* taken from the depca driver via a2065.c */ 600static void lance_load_multicast (struct net_device *dev) 601{ 602 struct lance_private *lp = netdev_priv(dev); 603 volatile struct lance_init_block *ib = lp->init_block; 604 volatile u16 *mcast_table = (u16 *)&ib->filter; 605 struct dev_mc_list *dmi=dev->mc_list; 606 char *addrs; 607 int i; 608 u32 crc; 609 610 /* set all multicast bits */ 611 if (dev->flags & IFF_ALLMULTI){ 612 ib->filter [0] = 0xffffffff; 613 ib->filter [1] = 0xffffffff; 614 return; 615 } 616 /* clear the multicast filter */ 617 ib->filter [0] = 0; 618 ib->filter [1] = 0; 619 620 /* Add addresses */ 621 for (i = 0; i < dev->mc_count; i++){ 622 addrs = dmi->dmi_addr; 623 dmi = dmi->next; 624 625 /* multicast address? */ 626 if (!(*addrs & 1)) 627 continue; 628 629 crc = ether_crc_le(6, addrs); 630 crc = crc >> 26; 631 mcast_table [crc >> 4] |= 1 << (crc & 0xf); 632 } 633 return; 634} 635 636 637void lance_set_multicast (struct net_device *dev) 638{ 639 struct lance_private *lp = netdev_priv(dev); 640 volatile struct lance_init_block *ib = lp->init_block; 641 int stopped; 642 643 stopped = netif_queue_stopped(dev); 644 if (!stopped) 645 netif_stop_queue (dev); 646 647 while (lp->tx_old != lp->tx_new) 648 schedule(); 649 650 WRITERAP(lp, LE_CSR0); 651 WRITERDP(lp, LE_C0_STOP); 652 lance_init_ring (dev); 653 654 if (dev->flags & IFF_PROMISC) { 655 ib->mode |= LE_MO_PROM; 656 } else { 657 ib->mode &= ~LE_MO_PROM; 658 lance_load_multicast (dev); 659 } 660 load_csrs (lp); 661 init_restart_lance (lp); 662 663 if (!stopped) 664 netif_start_queue (dev); 665} 666 667#ifdef CONFIG_NET_POLL_CONTROLLER 668void lance_poll(struct net_device *dev) 669{ 670 struct lance_private *lp = netdev_priv(dev); 671 672 spin_lock (&lp->devlock); 673 WRITERAP(lp, LE_CSR0); 674 WRITERDP(lp, LE_C0_STRT); 675 spin_unlock (&lp->devlock); 676 lance_interrupt(dev->irq, dev); 677} 678#endif 679 680MODULE_LICENSE("GPL"); 681