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sys/dev/netif/lnc/am79900.c
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1 /* $NetBSD: am79900.c,v 1.17 2005/12/24 20:27:29 perry Exp $ */ 2 /* $FreeBSD: src/sys/dev/le/am79900.c,v 1.3 2006/05/16 21:04:01 marius Exp $ */ 3 4 /*- 5 * Copyright (c) 1997 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /*- 41 * Copyright (c) 1992, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * Ralph Campbell and Rick Macklem. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 72 */ 73 74 /*- 75 * Copyright (c) 1998 76 * Matthias Drochner. All rights reserved. 77 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 78 * 79 * This code is derived from software contributed to Berkeley by 80 * Ralph Campbell and Rick Macklem. 81 * 82 * Redistribution and use in source and binary forms, with or without 83 * modification, are permitted provided that the following conditions 84 * are met: 85 * 1. Redistributions of source code must retain the above copyright 86 * notice, this list of conditions and the following disclaimer. 87 * 2. Redistributions in binary form must reproduce the above copyright 88 * notice, this list of conditions and the following disclaimer in the 89 * documentation and/or other materials provided with the distribution. 90 * 3. All advertising materials mentioning features or use of this software 91 * must display the following acknowledgement: 92 * This product includes software developed by the University of 93 * California, Berkeley and its contributors. 94 * 4. Neither the name of the University nor the names of its contributors 95 * may be used to endorse or promote products derived from this software 96 * without specific prior written permission. 97 * 98 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 99 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 100 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 101 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 102 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 103 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 104 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 105 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 106 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 107 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 108 * SUCH DAMAGE. 109 * 110 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 111 */ 112 113 #include <sys/param.h> 114 #include <sys/bus.h> 115 #include <sys/endian.h> 116 #include <sys/lock.h> 117 #include <sys/mbuf.h> 118 #include <sys/socket.h> 119 120 #include <net/bpf.h> 121 #include <net/ethernet.h> 122 #include <net/if.h> 123 #include <net/if_arp.h> 124 #include <net/if_dl.h> 125 #include <net/if_media.h> 126 #include <net/if_var.h> 127 #include <net/ifq_var.h> 128 129 #include <dev/netif/lnc/lancereg.h> 130 #include <dev/netif/lnc/lancevar.h> 131 #include <dev/netif/lnc/am79900reg.h> 132 #include <dev/netif/lnc/am79900var.h> 133 134 static void am79900_meminit(struct lance_softc *); 135 static void am79900_rint(struct lance_softc *); 136 static void am79900_tint(struct lance_softc *); 137 static void am79900_start_locked(struct lance_softc *sc); 138 139 #ifdef LEDEBUG 140 static void am79900_recv_print(struct lance_softc *, int); 141 static void am79900_xmit_print(struct lance_softc *, int); 142 #endif 143 144 int 145 am79900_config(struct am79900_softc *sc, const char* name, int unit) 146 { 147 int mem; 148 149 sc->lsc.sc_meminit = am79900_meminit; 150 sc->lsc.sc_start_locked = am79900_start_locked; 151 152 lance_config(&sc->lsc, name, unit); 153 154 mem = 0; 155 sc->lsc.sc_initaddr = mem; 156 mem += sizeof(struct leinit); 157 sc->lsc.sc_rmdaddr = mem; 158 mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf; 159 sc->lsc.sc_tmdaddr = mem; 160 mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf; 161 sc->lsc.sc_rbufaddr = mem; 162 mem += LEBLEN * sc->lsc.sc_nrbuf; 163 sc->lsc.sc_tbufaddr = mem; 164 mem += LEBLEN * sc->lsc.sc_ntbuf; 165 166 if (mem > sc->lsc.sc_memsize) 167 panic("%s: memsize", __func__); 168 169 return (0); 170 } 171 172 void 173 am79900_detach(struct am79900_softc *sc) 174 { 175 176 ether_ifdetach(sc->lsc.ifp); 177 } 178 179 /* 180 * Set up the initialization block and the descriptor rings. 181 */ 182 static void 183 am79900_meminit(struct lance_softc *sc) 184 { 185 struct ifnet *ifp = sc->ifp; 186 struct leinit init; 187 struct lermd rmd; 188 struct letmd tmd; 189 u_long a; 190 int bix; 191 192 if (ifp->if_flags & IFF_PROMISC) 193 init.init_mode = LE_HTOLE32(LE_MODE_NORMAL | LE_MODE_PROM); 194 else 195 init.init_mode = LE_HTOLE32(LE_MODE_NORMAL); 196 197 init.init_mode |= LE_HTOLE32(((ffs(sc->sc_ntbuf) - 1) << 28) | 198 ((ffs(sc->sc_nrbuf) - 1) << 20)); 199 200 init.init_padr[0] = LE_HTOLE32(sc->sc_enaddr[0] | 201 (sc->sc_enaddr[1] << 8) | (sc->sc_enaddr[2] << 16) | 202 (sc->sc_enaddr[3] << 24)); 203 init.init_padr[1] = LE_HTOLE32(sc->sc_enaddr[4] | 204 (sc->sc_enaddr[5] << 8)); 205 lance_setladrf(sc, init.init_ladrf); 206 207 sc->sc_last_rd = 0; 208 sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; 209 210 a = sc->sc_addr + LE_RMDADDR(sc, 0); 211 init.init_rdra = LE_HTOLE32(a); 212 213 a = sc->sc_addr + LE_TMDADDR(sc, 0); 214 init.init_tdra = LE_HTOLE32(a); 215 216 (*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init)); 217 218 /* 219 * Set up receive ring descriptors. 220 */ 221 for (bix = 0; bix < sc->sc_nrbuf; bix++) { 222 a = sc->sc_addr + LE_RBUFADDR(sc, bix); 223 rmd.rmd0 = LE_HTOLE32(a); 224 rmd.rmd1 = LE_HTOLE32(LE_R1_OWN | LE_R1_ONES | 225 (-LEBLEN & 0xfff)); 226 rmd.rmd2 = 0; 227 rmd.rmd3 = 0; 228 (*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix), 229 sizeof(rmd)); 230 } 231 232 /* 233 * Set up transmit ring descriptors. 234 */ 235 for (bix = 0; bix < sc->sc_ntbuf; bix++) { 236 a = sc->sc_addr + LE_TBUFADDR(sc, bix); 237 tmd.tmd0 = LE_HTOLE32(a); 238 tmd.tmd1 = LE_HTOLE32(LE_T1_ONES); 239 tmd.tmd2 = 0; 240 tmd.tmd3 = 0; 241 (*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix), 242 sizeof(tmd)); 243 } 244 } 245 246 static void 247 am79900_rint(struct lance_softc *sc) 248 { 249 struct ifnet *ifp = sc->ifp; 250 struct mbuf *m; 251 struct lermd rmd; 252 uint32_t rmd1; 253 int bix, rp; 254 #if defined(__i386__) 255 struct ether_header *eh; 256 #endif 257 258 bix = sc->sc_last_rd; 259 260 /* Process all buffers with valid data. */ 261 for (;;) { 262 rp = LE_RMDADDR(sc, bix); 263 (*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd)); 264 265 rmd1 = LE_LE32TOH(rmd.rmd1); 266 if (rmd1 & LE_R1_OWN) 267 break; 268 269 m = NULL; 270 if ((rmd1 & (LE_R1_ERR | LE_R1_STP | LE_R1_ENP)) != 271 (LE_R1_STP | LE_R1_ENP)){ 272 if (rmd1 & LE_R1_ERR) { 273 #ifdef LEDEBUG 274 if (rmd1 & LE_R1_ENP) { 275 if ((rmd1 & LE_R1_OFLO) == 0) { 276 if (rmd1 & LE_R1_FRAM) 277 if_printf(ifp, 278 "framing error\n"); 279 if (rmd1 & LE_R1_CRC) 280 if_printf(ifp, 281 "crc mismatch\n"); 282 } 283 } else 284 if (rmd1 & LE_R1_OFLO) 285 if_printf(ifp, "overflow\n"); 286 #endif 287 if (rmd1 & LE_R1_BUFF) 288 if_printf(ifp, 289 "receive buffer error\n"); 290 } else if ((rmd1 & (LE_R1_STP | LE_R1_ENP)) != 291 (LE_R1_STP | LE_R1_ENP)) 292 if_printf(ifp, "dropping chained buffer\n"); 293 } else { 294 #ifdef LEDEBUG 295 if (sc->sc_flags & LE_DEBUG) 296 am79900_recv_print(sc, bix); 297 #endif 298 /* Pull the packet off the interface. */ 299 m = lance_get(sc, LE_RBUFADDR(sc, bix), 300 (LE_LE32TOH(rmd.rmd2) & 0xfff) - ETHER_CRC_LEN); 301 } 302 303 rmd.rmd1 = LE_HTOLE32(LE_R1_OWN | LE_R1_ONES | 304 (-LEBLEN & 0xfff)); 305 rmd.rmd2 = 0; 306 rmd.rmd3 = 0; 307 (*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd)); 308 309 if (++bix == sc->sc_nrbuf) 310 bix = 0; 311 312 if (m != NULL) { 313 IFNET_STAT_INC(ifp, ipackets, 1); 314 315 #ifdef __i386__ 316 /* 317 * The VMware LANCE does not present IFF_SIMPLEX 318 * behavior on multicast packets. Thus drop the 319 * packet if it is from ourselves. 320 */ 321 eh = mtod(m, struct ether_header *); 322 if (memcmp(eh->ether_shost, sc->sc_enaddr, 323 ETHER_ADDR_LEN) == 0) { 324 m_freem(m); 325 continue; 326 } 327 #endif 328 329 /* Pass the packet up. */ 330 (*ifp->if_input)(ifp, m); 331 } else 332 IFNET_STAT_INC(ifp, ierrors, 1); 333 } 334 335 sc->sc_last_rd = bix; 336 } 337 338 static void 339 am79900_tint(struct lance_softc *sc) 340 { 341 struct ifnet *ifp = sc->ifp; 342 struct letmd tmd; 343 uint32_t tmd1, tmd2; 344 int bix; 345 346 bix = sc->sc_first_td; 347 348 for (;;) { 349 if (sc->sc_no_td <= 0) 350 break; 351 352 (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix), 353 sizeof(tmd)); 354 355 tmd1 = LE_LE32TOH(tmd.tmd1); 356 357 #ifdef LEDEBUG 358 if (sc->sc_flags & LE_DEBUG) 359 if_printf(ifp, "trans tmd: " 360 "adr %08x, flags/blen %08x\n", 361 LE_LE32TOH(tmd.tmd0), tmd1); 362 #endif 363 364 if (tmd1 & LE_T1_OWN) 365 break; 366 367 ifq_clr_oactive(&ifp->if_snd); 368 369 if (tmd1 & LE_T1_ERR) { 370 tmd2 = LE_LE32TOH(tmd.tmd2); 371 if (tmd2 & LE_T2_BUFF) 372 if_printf(ifp, "transmit buffer error\n"); 373 else if (tmd2 & LE_T2_UFLO) 374 if_printf(ifp, "underflow\n"); 375 if (tmd2 & (LE_T2_BUFF | LE_T2_UFLO)) { 376 lance_init_locked(sc); 377 return; 378 } 379 if (tmd2 & LE_T2_LCAR) { 380 if (sc->sc_flags & LE_CARRIER) { 381 ifp->if_link_state = LINK_STATE_DOWN; 382 if_link_state_change(ifp); 383 } 384 sc->sc_flags &= ~LE_CARRIER; 385 if (sc->sc_nocarrier) 386 (*sc->sc_nocarrier)(sc); 387 else 388 if_printf(ifp, "lost carrier\n"); 389 } 390 if (tmd2 & LE_T2_LCOL) 391 IFNET_STAT_INC(ifp, collisions, 1); 392 if (tmd2 & LE_T2_RTRY) { 393 #ifdef LEDEBUG 394 if_printf(ifp, "excessive collisions\n"); 395 #endif 396 IFNET_STAT_INC(ifp, collisions, 16); 397 } 398 IFNET_STAT_INC(ifp, oerrors, 1); 399 } else { 400 if (tmd1 & LE_T1_ONE) 401 IFNET_STAT_INC(ifp, collisions, 1); 402 else if (tmd1 & LE_T1_MORE) 403 /* Real number is unknown. */ 404 IFNET_STAT_INC(ifp, collisions, 2); 405 IFNET_STAT_INC(ifp, opackets, 1); 406 } 407 408 if (++bix == sc->sc_ntbuf) 409 bix = 0; 410 411 --sc->sc_no_td; 412 } 413 414 sc->sc_first_td = bix; 415 416 ifp->if_timer = sc->sc_no_td > 0 ? 5 : 0; 417 } 418 419 /* 420 * Controller interrupt 421 */ 422 void 423 am79900_intr(void *arg) 424 { 425 struct lance_softc *sc = arg; 426 struct ifnet *ifp = sc->ifp; 427 uint16_t isr; 428 429 if (sc->sc_hwintr && (*sc->sc_hwintr)(sc) == -1) { 430 IFNET_STAT_INC(ifp, ierrors, 1); 431 lance_init_locked(sc); 432 return; 433 } 434 435 isr = (*sc->sc_rdcsr)(sc, LE_CSR0); 436 #if defined(LEDEBUG) && LEDEBUG > 1 437 if (sc->sc_flags & LE_DEBUG) 438 if_printf(ifp, "%s: entering with isr=%04x\n", __func__, isr); 439 #endif 440 if ((isr & LE_C0_INTR) == 0) { 441 return; 442 } 443 444 /* 445 * Clear interrupt source flags and turn off interrupts. If we 446 * don't clear these flags before processing their sources we 447 * could completely miss some interrupt events as the NIC can 448 * change these flags while we're in this handler. We turn off 449 * interrupts so we don't get another RX interrupt while still 450 * processing the previous one in ifp->if_input() with the 451 * driver lock dropped. 452 */ 453 (*sc->sc_wrcsr)(sc, LE_CSR0, isr & ~(LE_C0_INEA | LE_C0_TDMD | 454 LE_C0_STOP | LE_C0_STRT | LE_C0_INIT)); 455 456 if (isr & LE_C0_ERR) { 457 if (isr & LE_C0_BABL) { 458 #ifdef LEDEBUG 459 if_printf(ifp, "babble\n"); 460 #endif 461 IFNET_STAT_INC(ifp, oerrors, 1); 462 } 463 #if 0 464 if (isr & LE_C0_CERR) { 465 if_printf(ifp, "collision error\n"); 466 ifp->if_collisions++; 467 } 468 #endif 469 if (isr & LE_C0_MISS) { 470 #ifdef LEDEBUG 471 if_printf(ifp, "missed packet\n"); 472 #endif 473 IFNET_STAT_INC(ifp, ierrors, 1); 474 } 475 if (isr & LE_C0_MERR) { 476 if_printf(ifp, "memory error\n"); 477 lance_init_locked(sc); 478 return; 479 } 480 } 481 482 if ((isr & LE_C0_RXON) == 0) { 483 if_printf(ifp, "receiver disabled\n"); 484 IFNET_STAT_INC(ifp, ierrors, 1); 485 lance_init_locked(sc); 486 return; 487 } 488 if ((isr & LE_C0_TXON) == 0) { 489 if_printf(ifp, "transmitter disabled\n"); 490 IFNET_STAT_INC(ifp, oerrors, 1); 491 lance_init_locked(sc); 492 return; 493 } 494 495 /* 496 * Pretend we have carrier; if we don't this will be cleared shortly. 497 */ 498 if (!(sc->sc_flags & LE_CARRIER)) { 499 ifp->if_link_state = LINK_STATE_UP; 500 if_link_state_change(ifp); 501 } 502 sc->sc_flags |= LE_CARRIER; 503 504 if (isr & LE_C0_RINT) 505 am79900_rint(sc); 506 if (isr & LE_C0_TINT) 507 am79900_tint(sc); 508 509 /* Enable interrupts again. */ 510 (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA); 511 512 if (!ifq_is_empty(&ifp->if_snd)) 513 if_devstart(ifp); 514 } 515 516 /* 517 * Set up output on interface. 518 * Get another datagram to send off of the interface queue, and map it to the 519 * interface before starting the output. 520 */ 521 static void 522 am79900_start_locked(struct lance_softc *sc) 523 { 524 struct ifnet *ifp = sc->ifp; 525 struct letmd tmd; 526 struct mbuf *m; 527 int bix, enq, len, rp; 528 529 if ((ifp->if_flags & IFF_RUNNING) == 0 || ifq_is_oactive(&ifp->if_snd)) 530 return; 531 532 bix = sc->sc_last_td; 533 enq = 0; 534 535 for (; sc->sc_no_td < sc->sc_ntbuf && 536 !ifq_is_empty(&ifp->if_snd);) { 537 rp = LE_TMDADDR(sc, bix); 538 (*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd)); 539 540 if (LE_LE32TOH(tmd.tmd1) & LE_T1_OWN) { 541 ifq_set_oactive(&ifp->if_snd); 542 if_printf(ifp, 543 "missing buffer, no_td = %d, last_td = %d\n", 544 sc->sc_no_td, sc->sc_last_td); 545 } 546 547 m = ifq_dequeue(&ifp->if_snd); 548 if (m == NULL) 549 break; 550 551 /* 552 * If BPF is listening on this interface, let it see the packet 553 * before we commit it to the wire. 554 */ 555 BPF_MTAP(ifp, m); 556 557 /* 558 * Copy the mbuf chain into the transmit buffer. 559 */ 560 len = lance_put(sc, LE_TBUFADDR(sc, bix), m); 561 562 #ifdef LEDEBUG 563 if (len > ETHERMTU + ETHER_HDR_LEN) 564 if_printf(ifp, "packet length %d\n", len); 565 #endif 566 567 /* 568 * Init transmit registers, and set transmit start flag. 569 */ 570 tmd.tmd1 = LE_HTOLE32(LE_T1_OWN | LE_T1_STP | LE_T1_ENP | 571 LE_T1_ONES | (-len & 0xfff)); 572 tmd.tmd2 = 0; 573 tmd.tmd3 = 0; 574 575 (*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd)); 576 577 #ifdef LEDEBUG 578 if (sc->sc_flags & LE_DEBUG) 579 am79900_xmit_print(sc, bix); 580 #endif 581 582 (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD); 583 enq++; 584 585 if (++bix == sc->sc_ntbuf) 586 bix = 0; 587 588 if (++sc->sc_no_td == sc->sc_ntbuf) { 589 ifq_set_oactive(&ifp->if_snd); 590 break; 591 } 592 } 593 594 sc->sc_last_td = bix; 595 596 if (enq > 0) 597 ifp->if_timer = 5; 598 } 599 600 #ifdef LEDEBUG 601 static void 602 am79900_recv_print(struct lance_softc *sc, int no) 603 { 604 struct ifnet *ifp = sc->ifp; 605 struct ether_header eh; 606 struct lermd rmd; 607 uint16_t len; 608 609 (*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd)); 610 len = LE_LE32TOH(rmd.rmd2) & 0xfff; 611 if_printf(ifp, "receive buffer %d, len = %d\n", no, len); 612 if_printf(ifp, "status %04x\n", (*sc->sc_rdcsr)(sc, LE_CSR0)); 613 if_printf(ifp, "adr %08x, flags/blen %08x\n", LE_LE32TOH(rmd.rmd0), 614 LE_LE32TOH(rmd.rmd1)); 615 if (len - ETHER_CRC_LEN >= sizeof(eh)) { 616 (*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh)); 617 if_printf(ifp, "dst %s", ether_sprintf(eh.ether_dhost)); 618 kprintf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), 619 ntohs(eh.ether_type)); 620 } 621 } 622 623 static void 624 am79900_xmit_print(struct lance_softc *sc, int no) 625 { 626 struct ifnet *ifp = sc->ifp; 627 struct ether_header eh; 628 struct letmd tmd; 629 uint16_t len; 630 631 (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd)); 632 len = -(LE_LE32TOH(tmd.tmd1) & 0xfff); 633 if_printf(ifp, "transmit buffer %d, len = %d\n", no, len); 634 if_printf(ifp, "status %04x\n", (*sc->sc_rdcsr)(sc, LE_CSR0)); 635 if_printf(ifp, "adr %08x, flags/blen %08x\n", LE_LE32TOH(tmd.tmd0), 636 LE_LE32TOH(tmd.tmd1)); 637 if (len >= sizeof(eh)) { 638 (*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh)); 639 if_printf(ifp, "dst %s", ether_sprintf(eh.ether_dhost)); 640 kprintf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), 641 ntohs(eh.ether_type)); 642 } 643 } 644 #endif /* LEDEBUG */
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