mb8795.c revision 1.56.2.1
1 /* $NetBSD: mb8795.c,v 1.56.2.1 2017/01/07 08:56:22 pgoyette Exp $ */ 2 /* 3 * Copyright (c) 1998 Darrin B. Jewell 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: mb8795.c,v 1.56.2.1 2017/01/07 08:56:22 pgoyette Exp $"); 29 30 #include "opt_inet.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/mbuf.h> 35 #include <sys/syslog.h> 36 #include <sys/socket.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <sys/ioctl.h> 40 #include <sys/errno.h> 41 #include <sys/rndsource.h> 42 43 #include <net/if.h> 44 #include <net/if_dl.h> 45 #include <net/if_ether.h> 46 47 #include <net/if_media.h> 48 49 #ifdef INET 50 #include <netinet/in.h> 51 #include <netinet/if_inarp.h> 52 #include <netinet/in_systm.h> 53 #include <netinet/in_var.h> 54 #include <netinet/ip.h> 55 #endif 56 57 58 59 #include <net/bpf.h> 60 #include <net/bpfdesc.h> 61 62 #include <machine/cpu.h> 63 #include <machine/bus.h> 64 #include <machine/intr.h> 65 66 /* @@@ this is here for the REALIGN_DMABUF hack below */ 67 #include "nextdmareg.h" 68 #include "nextdmavar.h" 69 70 #include "mb8795reg.h" 71 #include "mb8795var.h" 72 73 #include "bmapreg.h" 74 75 #ifdef DEBUG 76 #define MB8795_DEBUG 77 #endif 78 79 #define PRINTF(x) printf x; 80 #ifdef MB8795_DEBUG 81 int mb8795_debug = 0; 82 #define DPRINTF(x) if (mb8795_debug) printf x; 83 #else 84 #define DPRINTF(x) 85 #endif 86 87 extern int turbo; 88 89 /* 90 * Support for 91 * Fujitsu Ethernet Data Link Controller (MB8795) 92 * and the Fujitsu Manchester Encoder/Decoder (MB502). 93 */ 94 95 void mb8795_shutdown(void *); 96 97 bus_dmamap_t mb8795_txdma_restart(bus_dmamap_t, void *); 98 void mb8795_start_dma(struct mb8795_softc *); 99 100 int mb8795_mediachange(struct ifnet *); 101 void mb8795_mediastatus(struct ifnet *, struct ifmediareq *); 102 103 void 104 mb8795_config(struct mb8795_softc *sc, int *media, int nmedia, int defmedia) 105 { 106 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 107 108 DPRINTF(("%s: mb8795_config()\n",device_xname(sc->sc_dev))); 109 110 /* Initialize ifnet structure. */ 111 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 112 ifp->if_softc = sc; 113 ifp->if_start = mb8795_start; 114 ifp->if_ioctl = mb8795_ioctl; 115 ifp->if_watchdog = mb8795_watchdog; 116 ifp->if_flags = 117 IFF_BROADCAST | IFF_NOTRAILERS; 118 119 /* Initialize media goo. */ 120 ifmedia_init(&sc->sc_media, 0, mb8795_mediachange, 121 mb8795_mediastatus); 122 if (media != NULL) { 123 int i; 124 for (i = 0; i < nmedia; i++) 125 ifmedia_add(&sc->sc_media, media[i], 0, NULL); 126 ifmedia_set(&sc->sc_media, defmedia); 127 } else { 128 ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL); 129 ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL); 130 } 131 132 /* Attach the interface. */ 133 if_attach(ifp); 134 ether_ifattach(ifp, sc->sc_enaddr); 135 136 sc->sc_sh = shutdownhook_establish(mb8795_shutdown, sc); 137 if (sc->sc_sh == NULL) 138 panic("mb8795_config: can't establish shutdownhook"); 139 140 rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev), 141 RND_TYPE_NET, RND_FLAG_DEFAULT); 142 143 DPRINTF(("%s: leaving mb8795_config()\n",device_xname(sc->sc_dev))); 144 } 145 146 /* 147 * Media change callback. 148 */ 149 int 150 mb8795_mediachange(struct ifnet *ifp) 151 { 152 struct mb8795_softc *sc = ifp->if_softc; 153 int data; 154 155 if (turbo) 156 return (0); 157 158 switch IFM_SUBTYPE(sc->sc_media.ifm_media) { 159 case IFM_AUTO: 160 if ((bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) & 161 BMAP_DATA_UTPENABLED_MASK) || 162 !(bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) & 163 BMAP_DATA_UTPCARRIER_MASK)) { 164 data = BMAP_DATA_UTPENABLE; 165 sc->sc_media.ifm_cur->ifm_data = IFM_ETHER|IFM_10_T; 166 } else { 167 data = BMAP_DATA_BNCENABLE; 168 sc->sc_media.ifm_cur->ifm_data = IFM_ETHER|IFM_10_2; 169 } 170 break; 171 case IFM_10_T: 172 data = BMAP_DATA_UTPENABLE; 173 break; 174 case IFM_10_2: 175 data = BMAP_DATA_BNCENABLE; 176 break; 177 default: 178 return (1); 179 break; 180 } 181 182 bus_space_write_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, 183 BMAP_DDIR, BMAP_DDIR_UTPENABLE_MASK); 184 bus_space_write_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, 185 BMAP_DATA, data); 186 187 return (0); 188 } 189 190 /* 191 * Media status callback. 192 */ 193 void 194 mb8795_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 195 { 196 struct mb8795_softc *sc = ifp->if_softc; 197 198 if (turbo) 199 return; 200 201 if (IFM_SUBTYPE(ifmr->ifm_active) == IFM_AUTO) { 202 ifmr->ifm_active = sc->sc_media.ifm_cur->ifm_data; 203 } 204 if (IFM_SUBTYPE(ifmr->ifm_active) == IFM_10_T) { 205 ifmr->ifm_status = IFM_AVALID; 206 if (!(bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) & 207 BMAP_DATA_UTPCARRIER_MASK)) 208 ifmr->ifm_status |= IFM_ACTIVE; 209 } else { 210 ifmr->ifm_status &= ~IFM_AVALID; /* don't know for 10_2 */ 211 } 212 return; 213 } 214 215 /****************************************************************/ 216 #ifdef MB8795_DEBUG 217 #define XCHR(x) hexdigits[(x) & 0xf] 218 static void 219 mb8795_hex_dump(unsigned char *pkt, size_t len) 220 { 221 size_t i, j; 222 223 printf("00000000 "); 224 for(i=0; i<len; i++) { 225 printf("%c%c ", XCHR(pkt[i]>>4), XCHR(pkt[i])); 226 if ((i+1) % 16 == 8) { 227 printf(" "); 228 } 229 if ((i+1) % 16 == 0) { 230 printf(" %c", '|'); 231 for(j=0; j<16; j++) { 232 printf("%c", pkt[i-15+j]>=32 && pkt[i-15+j]<127?pkt[i-15+j]:'.'); 233 } 234 printf("%c\n%c%c%c%c%c%c%c%c ", '|', 235 XCHR((i+1)>>28),XCHR((i+1)>>24),XCHR((i+1)>>20),XCHR((i+1)>>16), 236 XCHR((i+1)>>12), XCHR((i+1)>>8), XCHR((i+1)>>4), XCHR(i+1)); 237 } 238 } 239 printf("\n"); 240 } 241 #undef XCHR 242 #endif 243 244 /* 245 * Controller receive interrupt. 246 */ 247 void 248 mb8795_rint(struct mb8795_softc *sc) 249 { 250 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 251 int error = 0; 252 u_char rxstat; 253 u_char rxmask; 254 255 rxstat = MB_READ_REG(sc, MB8795_RXSTAT); 256 rxmask = MB_READ_REG(sc, MB8795_RXMASK); 257 __USE(rxmask); 258 259 MB_WRITE_REG(sc, MB8795_RXSTAT, MB8795_RXSTAT_CLEAR); 260 261 if (rxstat & MB8795_RXSTAT_RESET) { 262 DPRINTF(("%s: rx reset packet\n", 263 device_xname(sc->sc_dev))); 264 error++; 265 } 266 if (rxstat & MB8795_RXSTAT_SHORT) { 267 DPRINTF(("%s: rx short packet\n", 268 device_xname(sc->sc_dev))); 269 error++; 270 } 271 if (rxstat & MB8795_RXSTAT_ALIGNERR) { 272 DPRINTF(("%s: rx alignment error\n", 273 device_xname(sc->sc_dev))); 274 #if 0 275 error++; 276 #endif 277 } 278 if (rxstat & MB8795_RXSTAT_CRCERR) { 279 DPRINTF(("%s: rx CRC error\n", 280 device_xname(sc->sc_dev))); 281 #if 0 282 error++; 283 #endif 284 } 285 if (rxstat & MB8795_RXSTAT_OVERFLOW) { 286 DPRINTF(("%s: rx overflow error\n", 287 device_xname(sc->sc_dev))); 288 #if 0 289 error++; 290 #endif 291 } 292 293 if (error) { 294 ifp->if_ierrors++; 295 /* @@@ handle more gracefully, free memory, etc. */ 296 } 297 298 if (rxstat & MB8795_RXSTAT_OK) { 299 struct mbuf *m; 300 int s; 301 s = spldma(); 302 303 while ((m = MBDMA_RX_MBUF (sc))) { 304 /* CRC is included with the packet; trim it. */ 305 m->m_pkthdr.len = m->m_len = m->m_len - ETHER_CRC_LEN; 306 m_set_rcvif(m, ifp); 307 308 /* Find receive length, keep crc */ 309 /* enable DMA interrupts while we process the packet */ 310 splx(s); 311 312 #if defined(MB8795_DEBUG) 313 /* Peek at the packet */ 314 DPRINTF(("%s: received packet, at VA %p-%p,len %d\n", 315 device_xname(sc->sc_dev),mtod(m,u_char *),mtod(m,u_char *)+m->m_len,m->m_len)); 316 if (mb8795_debug > 3) { 317 mb8795_hex_dump(mtod(m,u_char *), m->m_pkthdr.len); 318 } else if (mb8795_debug > 2) { 319 mb8795_hex_dump(mtod(m,u_char *), m->m_pkthdr.len < 255 ? m->m_pkthdr.len : 128 ); 320 } 321 #endif 322 323 /* Pass the packet up. */ 324 if_percpuq_enqueue(ifp->if_percpuq, m); 325 326 s = spldma(); 327 328 } 329 330 splx(s); 331 332 } 333 334 #ifdef MB8795_DEBUG 335 if (mb8795_debug) { 336 char sbuf[256]; 337 338 snprintb(sbuf, sizeof(sbuf), MB8795_RXSTAT_BITS, rxstat); 339 printf("%s: rx interrupt, rxstat = %s\n", 340 device_xname(sc->sc_dev), sbuf); 341 342 snprintb(sbuf, sizeof(sbuf), MB8795_RXSTAT_BITS, 343 MB_READ_REG(sc, MB8795_RXSTAT)); 344 345 printf("rxstat = 0x%s\n", sbuf); 346 347 snprintb(sbuf, sizeof(sbuf), MB8795_RXMASK_BITS, 348 MB_READ_REG(sc, MB8795_RXMASK)); 349 printf("rxmask = 0x%s\n", sbuf); 350 351 snprintb(sbuf, sizeof(sbuf), MB8795_RXMODE_BITS, 352 MB_READ_REG(sc, MB8795_RXMODE)); 353 printf("rxmode = 0x%s\n", sbuf); 354 } 355 #endif 356 357 return; 358 } 359 360 /* 361 * Controller transmit interrupt. 362 */ 363 void 364 mb8795_tint(struct mb8795_softc *sc) 365 { 366 u_char txstat; 367 u_char txmask; 368 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 369 370 panic ("tint"); 371 txstat = MB_READ_REG(sc, MB8795_TXSTAT); 372 txmask = MB_READ_REG(sc, MB8795_TXMASK); 373 __USE(txmask); 374 375 if ((txstat & MB8795_TXSTAT_READY) || 376 (txstat & MB8795_TXSTAT_TXRECV)) { 377 /* printf("X"); */ 378 MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR); 379 /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_READYIE); */ 380 /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_TXRXIE); */ 381 MB_WRITE_REG(sc, MB8795_TXMASK, 0); 382 if ((ifp->if_flags & IFF_RUNNING) && !IF_IS_EMPTY(&sc->sc_tx_snd)) { 383 void mb8795_start_dma(struct mb8795_softc *); /* XXXX */ 384 /* printf ("Z"); */ 385 mb8795_start_dma(sc); 386 } 387 return; 388 } 389 390 if (txstat & MB8795_TXSTAT_SHORTED) { 391 printf("%s: tx cable shorted\n", device_xname(sc->sc_dev)); 392 ifp->if_oerrors++; 393 } 394 if (txstat & MB8795_TXSTAT_UNDERFLOW) { 395 printf("%s: tx underflow\n", device_xname(sc->sc_dev)); 396 ifp->if_oerrors++; 397 } 398 if (txstat & MB8795_TXSTAT_COLLERR) { 399 DPRINTF(("%s: tx collision\n", device_xname(sc->sc_dev))); 400 ifp->if_collisions++; 401 } 402 if (txstat & MB8795_TXSTAT_COLLERR16) { 403 printf("%s: tx 16th collision\n", device_xname(sc->sc_dev)); 404 ifp->if_oerrors++; 405 ifp->if_collisions += 16; 406 } 407 408 #if 0 409 if (txstat & MB8795_TXSTAT_READY) { 410 char sbuf[256]; 411 412 snprintb(sbuf, sizeof(sbuf), MB8795_TXSTAT_BITS, txstat); 413 panic("%s: unexpected tx interrupt %s", 414 device_xname(sc->sc_dev), sbuf); 415 416 /* turn interrupt off */ 417 MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_READYIE); 418 } 419 #endif 420 421 return; 422 } 423 424 /****************************************************************/ 425 426 void 427 mb8795_reset(struct mb8795_softc *sc) 428 { 429 int s; 430 int i; 431 432 s = splnet(); 433 434 DPRINTF (("%s: mb8795_reset()\n",device_xname(sc->sc_dev))); 435 436 sc->sc_ethercom.ec_if.if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 437 sc->sc_ethercom.ec_if.if_timer = 0; 438 439 MBDMA_RESET(sc); 440 441 MB_WRITE_REG(sc, MB8795_RESET, MB8795_RESET_MODE); 442 443 mb8795_mediachange(&sc->sc_ethercom.ec_if); 444 445 #if 0 /* This interrupt was sometimes failing to ack correctly 446 * causing a loop @@@ 447 */ 448 MB_WRITE_REG(sc, MB8795_TXMASK, 449 MB8795_TXMASK_UNDERFLOWIE | MB8795_TXMASK_COLLIE | MB8795_TXMASK_COLL16IE 450 | MB8795_TXMASK_PARERRIE); 451 #else 452 MB_WRITE_REG(sc, MB8795_TXMASK, 0); 453 #endif 454 MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR); 455 456 #if 0 457 MB_WRITE_REG(sc, MB8795_RXMASK, 458 MB8795_RXMASK_OKIE | MB8795_RXMASK_RESETIE | MB8795_RXMASK_SHORTIE | 459 MB8795_RXMASK_ALIGNERRIE | MB8795_RXMASK_CRCERRIE | MB8795_RXMASK_OVERFLOWIE); 460 #else 461 MB_WRITE_REG(sc, MB8795_RXMASK, 462 MB8795_RXMASK_OKIE | MB8795_RXMASK_RESETIE | MB8795_RXMASK_SHORTIE); 463 #endif 464 465 MB_WRITE_REG(sc, MB8795_RXSTAT, MB8795_RXSTAT_CLEAR); 466 467 for(i=0;i<sizeof(sc->sc_enaddr);i++) { 468 MB_WRITE_REG(sc, MB8795_ENADDR+i, sc->sc_enaddr[i]); 469 } 470 471 DPRINTF(("%s: initializing ethernet %02x:%02x:%02x:%02x:%02x:%02x, size=%d\n", 472 device_xname(sc->sc_dev), 473 sc->sc_enaddr[0],sc->sc_enaddr[1],sc->sc_enaddr[2], 474 sc->sc_enaddr[3],sc->sc_enaddr[4],sc->sc_enaddr[5], 475 sizeof(sc->sc_enaddr))); 476 477 MB_WRITE_REG(sc, MB8795_RESET, 0); 478 479 splx(s); 480 } 481 482 void 483 mb8795_watchdog(struct ifnet *ifp) 484 { 485 struct mb8795_softc *sc = ifp->if_softc; 486 487 log(LOG_ERR, "%s: device timeout\n", device_xname(sc->sc_dev)); 488 ++ifp->if_oerrors; 489 490 DPRINTF(("%s: %lld input errors, %lld input packets\n", 491 device_xname(sc->sc_dev), ifp->if_ierrors, ifp->if_ipackets)); 492 493 ifp->if_flags &= ~IFF_RUNNING; 494 mb8795_init(sc); 495 } 496 497 /* 498 * Initialization of interface; set up initialization block 499 * and transmit/receive descriptor rings. 500 */ 501 void 502 mb8795_init(struct mb8795_softc *sc) 503 { 504 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 505 int s; 506 507 DPRINTF (("%s: mb8795_init()\n",device_xname(sc->sc_dev))); 508 509 if (ifp->if_flags & IFF_UP) { 510 int rxmode; 511 512 s = spldma(); 513 if ((ifp->if_flags & IFF_RUNNING) == 0) 514 mb8795_reset(sc); 515 516 if (ifp->if_flags & IFF_PROMISC) 517 rxmode = MB8795_RXMODE_PROMISCUOUS; 518 else 519 rxmode = MB8795_RXMODE_NORMAL; 520 /* XXX add support for multicast */ 521 if (turbo) 522 rxmode |= MB8795_RXMODE_TEST; 523 524 /* switching mode probably borken now with turbo */ 525 MB_WRITE_REG(sc, MB8795_TXMODE, 526 turbo ? MB8795_TXMODE_TURBO1 : MB8795_TXMODE_LB_DISABLE); 527 MB_WRITE_REG(sc, MB8795_RXMODE, rxmode); 528 529 if ((ifp->if_flags & IFF_RUNNING) == 0) { 530 MBDMA_RX_SETUP(sc); 531 MBDMA_TX_SETUP(sc); 532 533 ifp->if_flags |= IFF_RUNNING; 534 ifp->if_flags &= ~IFF_OACTIVE; 535 ifp->if_timer = 0; 536 537 MBDMA_RX_GO(sc); 538 } 539 splx(s); 540 #if 0 541 s = spldma(); 542 if (! IF_IS_EMPTY(&sc->sc_tx_snd)) { 543 mb8795_start_dma(ifp); 544 } 545 splx(s); 546 #endif 547 } else { 548 mb8795_reset(sc); 549 } 550 } 551 552 void 553 mb8795_shutdown(void *arg) 554 { 555 struct mb8795_softc *sc = (struct mb8795_softc *)arg; 556 557 DPRINTF(("%s: mb8795_shutdown()\n",device_xname(sc->sc_dev))); 558 559 mb8795_reset(sc); 560 } 561 562 /****************************************************************/ 563 int 564 mb8795_ioctl(struct ifnet *ifp, u_long cmd, void *data) 565 { 566 struct mb8795_softc *sc = ifp->if_softc; 567 struct ifaddr *ifa = (struct ifaddr *)data; 568 struct ifreq *ifr = (struct ifreq *)data; 569 int s, error = 0; 570 571 s = splnet(); 572 573 DPRINTF(("%s: mb8795_ioctl()\n",device_xname(sc->sc_dev))); 574 575 switch (cmd) { 576 577 case SIOCINITIFADDR: 578 DPRINTF(("%s: mb8795_ioctl() SIOCINITIFADDR\n",device_xname(sc->sc_dev))); 579 ifp->if_flags |= IFF_UP; 580 581 mb8795_init(sc); 582 switch (ifa->ifa_addr->sa_family) { 583 #ifdef INET 584 case AF_INET: 585 arp_ifinit(ifp, ifa); 586 break; 587 #endif 588 default: 589 break; 590 } 591 break; 592 593 594 case SIOCSIFFLAGS: 595 DPRINTF(("%s: mb8795_ioctl() SIOCSIFFLAGS\n",device_xname(sc->sc_dev))); 596 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 597 break; 598 switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { 599 case IFF_RUNNING: 600 /* 601 * If interface is marked down and it is running, then 602 * stop it. 603 */ 604 /* ifp->if_flags &= ~IFF_RUNNING; */ 605 mb8795_reset(sc); 606 break; 607 case IFF_UP: 608 /* 609 * If interface is marked up and it is stopped, then 610 * start it. 611 */ 612 mb8795_init(sc); 613 break; 614 default: 615 /* 616 * Reset the interface to pick up changes in any other 617 * flags that affect hardware registers. 618 */ 619 mb8795_init(sc); 620 break; 621 } 622 #ifdef MB8795_DEBUG 623 if (ifp->if_flags & IFF_DEBUG) 624 sc->sc_debug = 1; 625 else 626 sc->sc_debug = 0; 627 #endif 628 break; 629 630 case SIOCADDMULTI: 631 case SIOCDELMULTI: 632 DPRINTF(("%s: mb8795_ioctl() SIOCADDMULTI\n", 633 device_xname(sc->sc_dev))); 634 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 635 /* 636 * Multicast list has changed; set the hardware filter 637 * accordingly. 638 */ 639 if (ifp->if_flags & IFF_RUNNING) 640 mb8795_init(sc); 641 error = 0; 642 } 643 break; 644 645 case SIOCGIFMEDIA: 646 case SIOCSIFMEDIA: 647 DPRINTF(("%s: mb8795_ioctl() SIOCSIFMEDIA\n",device_xname(sc->sc_dev))); 648 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 649 break; 650 651 default: 652 error = ether_ioctl(ifp, cmd, data); 653 break; 654 } 655 656 splx(s); 657 658 #if 0 659 DPRINTF(("DEBUG: mb8795_ioctl(0x%lx) returning %d\n", 660 cmd,error)); 661 #endif 662 663 return (error); 664 } 665 666 /* 667 * Setup output on interface. 668 * Get another datagram to send off of the interface queue, and map it to the 669 * interface before starting the output. 670 * Called only at splnet or interrupt level. 671 */ 672 void 673 mb8795_start(struct ifnet *ifp) 674 { 675 struct mb8795_softc *sc = ifp->if_softc; 676 struct mbuf *m; 677 int s; 678 679 DPRINTF(("%s: mb8795_start()\n",device_xname(sc->sc_dev))); 680 681 #ifdef DIAGNOSTIC 682 IFQ_POLL(&ifp->if_snd, m); 683 if (m == 0) { 684 panic("%s: No packet to start", 685 device_xname(sc->sc_dev)); 686 } 687 #endif 688 689 while (1) { 690 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 691 return; 692 693 #if 0 694 return; /* @@@ Turn off xmit for debugging */ 695 #endif 696 697 ifp->if_flags |= IFF_OACTIVE; 698 699 IFQ_DEQUEUE(&ifp->if_snd, m); 700 if (m == 0) { 701 ifp->if_flags &= ~IFF_OACTIVE; 702 return; 703 } 704 705 /* 706 * Pass packet to bpf if there is a listener. 707 */ 708 bpf_mtap(ifp, m); 709 710 s = spldma(); 711 IF_ENQUEUE(&sc->sc_tx_snd, m); 712 if (!MBDMA_TX_ISACTIVE(sc)) 713 mb8795_start_dma(sc); 714 splx(s); 715 716 ifp->if_flags &= ~IFF_OACTIVE; 717 } 718 719 } 720 721 void 722 mb8795_start_dma(struct mb8795_softc *sc) 723 { 724 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 725 struct mbuf *m; 726 u_char txmask; 727 728 DPRINTF(("%s: mb8795_start_dma()\n",device_xname(sc->sc_dev))); 729 730 #if (defined(DIAGNOSTIC)) 731 { 732 u_char txstat; 733 txstat = MB_READ_REG(sc, MB8795_TXSTAT); 734 if (!turbo && !(txstat & MB8795_TXSTAT_READY)) { 735 /* @@@ I used to panic here, but then it paniced once. 736 * Let's see if I can just reset instead. [ dbj 980706.1900 ] 737 */ 738 printf("%s: transmitter not ready\n", 739 device_xname(sc->sc_dev)); 740 ifp->if_flags &= ~IFF_RUNNING; 741 mb8795_init(sc); 742 return; 743 } 744 } 745 #endif 746 747 #if 0 748 return; /* @@@ Turn off xmit for debugging */ 749 #endif 750 751 IF_DEQUEUE(&sc->sc_tx_snd, m); 752 if (m == 0) { 753 #ifdef DIAGNOSTIC 754 panic("%s: No packet to start_dma", 755 device_xname(sc->sc_dev)); 756 #endif 757 return; 758 } 759 760 MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR); 761 txmask = MB_READ_REG(sc, MB8795_TXMASK); 762 __USE(txmask); 763 /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask | MB8795_TXMASK_READYIE); */ 764 /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask | MB8795_TXMASK_TXRXIE); */ 765 766 ifp->if_timer = 5; 767 768 if (MBDMA_TX_MBUF(sc, m)) 769 return; 770 771 MBDMA_TX_GO(sc); 772 if (turbo) 773 MB_WRITE_REG(sc, MB8795_TXMODE, MB8795_TXMODE_TURBO1 | MB8795_TXMODE_TURBOSTART); 774 775 ifp->if_opackets++; 776 } 777 778 /****************************************************************/ 779
Indexes created Tue Oct 14 08:09:56 GMT 2025