1/* $NetBSD: am79900.c,v 1.17 2005/12/24 20:27:29 perry Exp $ */ 2 3/*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/*- 40 * Copyright (c) 1992, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * Ralph Campbell and Rick Macklem. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 71 */ 72 73/*- 74 * Copyright (c) 1998 75 * Matthias Drochner. All rights reserved. 76 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 77 * 78 * This code is derived from software contributed to Berkeley by 79 * Ralph Campbell and Rick Macklem. 80 * 81 * Redistribution and use in source and binary forms, with or without 82 * modification, are permitted provided that the following conditions 83 * are met: 84 * 1. Redistributions of source code must retain the above copyright 85 * notice, this list of conditions and the following disclaimer. 86 * 2. Redistributions in binary form must reproduce the above copyright 87 * notice, this list of conditions and the following disclaimer in the 88 * documentation and/or other materials provided with the distribution. 89 * 3. All advertising materials mentioning features or use of this software 90 * must display the following acknowledgement: 91 * This product includes software developed by the University of 92 * California, Berkeley and its contributors. 93 * 4. Neither the name of the University nor the names of its contributors 94 * may be used to endorse or promote products derived from this software 95 * without specific prior written permission. 96 * 97 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 98 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 99 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 100 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 101 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 102 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 103 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 104 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 105 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 106 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 107 * SUCH DAMAGE. 108 * 109 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 110 */ 111 112#include <sys/cdefs.h> 113__FBSDID("$FreeBSD$"); 114 115#include <sys/param.h> 116#include <sys/bus.h> 117#include <sys/endian.h> 118#include <sys/lock.h> 119#include <sys/mbuf.h> 120#include <sys/mutex.h> 121#include <sys/socket.h> 122 123#include <net/bpf.h> 124#include <net/ethernet.h> 125#include <net/if.h> 126#include <net/if_arp.h> 127#include <net/if_dl.h> 128#include <net/if_media.h> 129#include <net/if_var.h> 130 131#include <machine/bus.h> 132 133#include <dev/le/lancereg.h> 134#include <dev/le/lancevar.h> 135#include <dev/le/am79900reg.h> 136#include <dev/le/am79900var.h> 137 138static void am79900_meminit(struct lance_softc *); 139static void am79900_rint(struct lance_softc *); 140static void am79900_tint(struct lance_softc *); 141static void am79900_start_locked(struct lance_softc *sc); 142 143#ifdef LEDEBUG 144static void am79900_recv_print(struct lance_softc *, int); 145static void am79900_xmit_print(struct lance_softc *, int); 146#endif 147 148int 149am79900_config(struct am79900_softc *sc, const char* name, int unit) 150{ 151 int error, mem; 152 153 sc->lsc.sc_meminit = am79900_meminit; 154 sc->lsc.sc_start_locked = am79900_start_locked; 155 156 error = lance_config(&sc->lsc, name, unit); 157 if (error != 0) 158 return (error); 159 160 mem = 0; 161 sc->lsc.sc_initaddr = mem; 162 mem += sizeof(struct leinit); 163 sc->lsc.sc_rmdaddr = mem; 164 mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf; 165 sc->lsc.sc_tmdaddr = mem; 166 mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf; 167 sc->lsc.sc_rbufaddr = mem; 168 mem += LEBLEN * sc->lsc.sc_nrbuf; 169 sc->lsc.sc_tbufaddr = mem; 170 mem += LEBLEN * sc->lsc.sc_ntbuf; 171 172 if (mem > sc->lsc.sc_memsize) 173 panic("%s: memsize", __func__); 174 175 lance_attach(&sc->lsc); 176 177 return (0); 178} 179 180void 181am79900_detach(struct am79900_softc *sc) 182{ 183 184 lance_detach(&sc->lsc); 185} 186 187/* 188 * Set up the initialization block and the descriptor rings. 189 */ 190static void 191am79900_meminit(struct lance_softc *sc) 192{ 193 struct ifnet *ifp = sc->sc_ifp; 194 struct leinit init; 195 struct lermd rmd; 196 struct letmd tmd; 197 u_long a; 198 int bix; 199 200 LE_LOCK_ASSERT(sc, MA_OWNED); 201 202 if (ifp->if_flags & IFF_PROMISC) 203 init.init_mode = LE_HTOLE32(LE_MODE_NORMAL | LE_MODE_PROM); 204 else 205 init.init_mode = LE_HTOLE32(LE_MODE_NORMAL); 206 207 init.init_mode |= LE_HTOLE32(((ffs(sc->sc_ntbuf) - 1) << 28) | 208 ((ffs(sc->sc_nrbuf) - 1) << 20)); 209 210 init.init_padr[0] = LE_HTOLE32(sc->sc_enaddr[0] | 211 (sc->sc_enaddr[1] << 8) | (sc->sc_enaddr[2] << 16) | 212 (sc->sc_enaddr[3] << 24)); 213 init.init_padr[1] = LE_HTOLE32(sc->sc_enaddr[4] | 214 (sc->sc_enaddr[5] << 8)); 215 lance_setladrf(sc, init.init_ladrf); 216 217 sc->sc_last_rd = 0; 218 sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; 219 220 a = sc->sc_addr + LE_RMDADDR(sc, 0); 221 init.init_rdra = LE_HTOLE32(a); 222 223 a = sc->sc_addr + LE_TMDADDR(sc, 0); 224 init.init_tdra = LE_HTOLE32(a); 225 226 (*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init)); 227 228 /* 229 * Set up receive ring descriptors. 230 */ 231 for (bix = 0; bix < sc->sc_nrbuf; bix++) { 232 a = sc->sc_addr + LE_RBUFADDR(sc, bix); 233 rmd.rmd0 = LE_HTOLE32(a); 234 rmd.rmd1 = LE_HTOLE32(LE_R1_OWN | LE_R1_ONES | 235 (-LEBLEN & 0xfff)); 236 rmd.rmd2 = 0; 237 rmd.rmd3 = 0; 238 (*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix), 239 sizeof(rmd)); 240 } 241 242 /* 243 * Set up transmit ring descriptors. 244 */ 245 for (bix = 0; bix < sc->sc_ntbuf; bix++) { 246 a = sc->sc_addr + LE_TBUFADDR(sc, bix); 247 tmd.tmd0 = LE_HTOLE32(a); 248 tmd.tmd1 = LE_HTOLE32(LE_T1_ONES); 249 tmd.tmd2 = 0; 250 tmd.tmd3 = 0; 251 (*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix), 252 sizeof(tmd)); 253 } 254} 255 256static inline void 257am79900_rint(struct lance_softc *sc) 258{ 259 struct ifnet *ifp = sc->sc_ifp; 260 struct mbuf *m; 261 struct lermd rmd; 262 uint32_t rmd1; 263 int bix, rp; 264#if defined(__i386__) && !defined(PC98) 265 struct ether_header *eh; 266#endif 267 268 bix = sc->sc_last_rd; 269 270 /* Process all buffers with valid data. */ 271 for (;;) { 272 rp = LE_RMDADDR(sc, bix); 273 (*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd)); 274 275 rmd1 = LE_LE32TOH(rmd.rmd1); 276 if (rmd1 & LE_R1_OWN) 277 break; 278 279 m = NULL; 280 if ((rmd1 & (LE_R1_ERR | LE_R1_STP | LE_R1_ENP)) != 281 (LE_R1_STP | LE_R1_ENP)){ 282 if (rmd1 & LE_R1_ERR) { 283#ifdef LEDEBUG 284 if (rmd1 & LE_R1_ENP) { 285 if ((rmd1 & LE_R1_OFLO) == 0) { 286 if (rmd1 & LE_R1_FRAM) 287 if_printf(ifp, 288 "framing error\n"); 289 if (rmd1 & LE_R1_CRC) 290 if_printf(ifp, 291 "crc mismatch\n"); 292 } 293 } else 294 if (rmd1 & LE_R1_OFLO) 295 if_printf(ifp, "overflow\n"); 296#endif 297 if (rmd1 & LE_R1_BUFF) 298 if_printf(ifp, 299 "receive buffer error\n"); 300 } else if ((rmd1 & (LE_R1_STP | LE_R1_ENP)) != 301 (LE_R1_STP | LE_R1_ENP)) 302 if_printf(ifp, "dropping chained buffer\n"); 303 } else { 304#ifdef LEDEBUG 305 if (sc->sc_flags & LE_DEBUG) 306 am79900_recv_print(sc, bix); 307#endif 308 /* Pull the packet off the interface. */ 309 m = lance_get(sc, LE_RBUFADDR(sc, bix), 310 (LE_LE32TOH(rmd.rmd2) & 0xfff) - ETHER_CRC_LEN); 311 } 312 313 rmd.rmd1 = LE_HTOLE32(LE_R1_OWN | LE_R1_ONES | 314 (-LEBLEN & 0xfff)); 315 rmd.rmd2 = 0; 316 rmd.rmd3 = 0; 317 (*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd)); 318 319 if (++bix == sc->sc_nrbuf) 320 bix = 0; 321 322 if (m != NULL) { 323 ifp->if_ipackets++; 324 325#if defined(__i386__) && !defined(PC98) 326 /* 327 * The VMware LANCE does not present IFF_SIMPLEX 328 * behavior on multicast packets. Thus drop the 329 * packet if it is from ourselves. 330 */ 331 eh = mtod(m, struct ether_header *); 332 if (!ether_cmp(eh->ether_shost, sc->sc_enaddr)) { 333 m_freem(m); 334 continue; 335 } 336#endif 337 338 /* Pass the packet up. */ 339 LE_UNLOCK(sc); 340 (*ifp->if_input)(ifp, m); 341 LE_LOCK(sc); 342 } else 343 ifp->if_ierrors++; 344 } 345 346 sc->sc_last_rd = bix; 347} 348 349static inline void 350am79900_tint(struct lance_softc *sc) 351{ 352 struct ifnet *ifp = sc->sc_ifp; 353 struct letmd tmd; 354 uint32_t tmd1, tmd2; 355 int bix; 356 357 bix = sc->sc_first_td; 358 359 for (;;) { 360 if (sc->sc_no_td <= 0) 361 break; 362 363 (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix), 364 sizeof(tmd)); 365 366 tmd1 = LE_LE32TOH(tmd.tmd1); 367 368#ifdef LEDEBUG 369 if (sc->sc_flags & LE_DEBUG) 370 if_printf(ifp, "trans tmd: " 371 "adr %08x, flags/blen %08x\n", 372 LE_LE32TOH(tmd.tmd0), tmd1); 373#endif 374 375 if (tmd1 & LE_T1_OWN) 376 break; 377 378 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 379 380 if (tmd1 & LE_T1_ERR) { 381 tmd2 = LE_LE32TOH(tmd.tmd2); 382 if (tmd2 & LE_T2_BUFF) 383 if_printf(ifp, "transmit buffer error\n"); 384 else if (tmd2 & LE_T2_UFLO) 385 if_printf(ifp, "underflow\n"); 386 if (tmd2 & (LE_T2_BUFF | LE_T2_UFLO)) { 387 lance_init_locked(sc); 388 return; 389 } 390 if (tmd2 & LE_T2_LCAR) { 391 if (sc->sc_flags & LE_CARRIER) 392 if_link_state_change(ifp, 393 LINK_STATE_DOWN); 394 sc->sc_flags &= ~LE_CARRIER; 395 if (sc->sc_nocarrier) 396 (*sc->sc_nocarrier)(sc); 397 else 398 if_printf(ifp, "lost carrier\n"); 399 } 400 if (tmd2 & LE_T2_LCOL) 401 ifp->if_collisions++; 402 if (tmd2 & LE_T2_RTRY) { 403#ifdef LEDEBUG 404 if_printf(ifp, "excessive collisions\n"); 405#endif 406 ifp->if_collisions += 16; 407 } 408 ifp->if_oerrors++; 409 } else { 410 if (tmd1 & LE_T1_ONE) 411 ifp->if_collisions++; 412 else if (tmd1 & LE_T1_MORE) 413 /* Real number is unknown. */ 414 ifp->if_collisions += 2; 415 ifp->if_opackets++; 416 } 417 418 if (++bix == sc->sc_ntbuf) 419 bix = 0; 420 421 --sc->sc_no_td; 422 } 423 424 sc->sc_first_td = bix; 425 426 sc->sc_wdog_timer = sc->sc_no_td > 0 ? 5 : 0; 427} 428 429/* 430 * Controller interrupt 431 */ 432void 433am79900_intr(void *arg) 434{ 435 struct lance_softc *sc = arg; 436 struct ifnet *ifp = sc->sc_ifp; 437 uint16_t isr; 438 439 LE_LOCK(sc); 440 441 if (sc->sc_hwintr && (*sc->sc_hwintr)(sc) == -1) { 442 ifp->if_ierrors++; 443 lance_init_locked(sc); 444 LE_UNLOCK(sc); 445 return; 446 } 447 448#ifndef __HAIKU__ 449 isr = (*sc->sc_rdcsr)(sc, LE_CSR0); 450#else 451 { 452 HAIKU_INTR_REGISTER_STATE; 453 HAIKU_INTR_REGISTER_ENTER(); 454 isr = sc->sc_lastisr; 455 sc->sc_lastisr = 0; 456 HAIKU_INTR_REGISTER_LEAVE(); 457 } 458#endif 459#if defined(LEDEBUG) && LEDEBUG > 1 460 if (sc->sc_flags & LE_DEBUG) 461 if_printf(ifp, "%s: entering with isr=%04x\n", __func__, isr); 462#endif 463 if ((isr & LE_C0_INTR) == 0) { 464 LE_UNLOCK(sc); 465 return; 466 } 467 468 /* 469 * Clear interrupt source flags and turn off interrupts. If we 470 * don't clear these flags before processing their sources we 471 * could completely miss some interrupt events as the NIC can 472 * change these flags while we're in this handler. We toggle 473 * the interrupt enable bit in order to keep receiving them 474 * (some chips work without this, some don't). 475 */ 476 (*sc->sc_wrcsr)(sc, LE_CSR0, isr & ~(LE_C0_INEA | LE_C0_TDMD | 477 LE_C0_STOP | LE_C0_STRT | LE_C0_INIT)); 478 479 if (isr & LE_C0_ERR) { 480 if (isr & LE_C0_BABL) { 481#ifdef LEDEBUG 482 if_printf(ifp, "babble\n"); 483#endif 484 ifp->if_oerrors++; 485 } 486#if 0 487 if (isr & LE_C0_CERR) { 488 if_printf(ifp, "collision error\n"); 489 ifp->if_collisions++; 490 } 491#endif 492 if (isr & LE_C0_MISS) { 493#ifdef LEDEBUG 494 if_printf(ifp, "missed packet\n"); 495#endif 496 ifp->if_ierrors++; 497 } 498 if (isr & LE_C0_MERR) { 499 if_printf(ifp, "memory error\n"); 500 lance_init_locked(sc); 501 LE_UNLOCK(sc); 502 return; 503 } 504 } 505 506 if ((isr & LE_C0_RXON) == 0) { 507 if_printf(ifp, "receiver disabled\n"); 508 ifp->if_ierrors++; 509 lance_init_locked(sc); 510 LE_UNLOCK(sc); 511 return; 512 } 513 if ((isr & LE_C0_TXON) == 0) { 514 if_printf(ifp, "transmitter disabled\n"); 515 ifp->if_oerrors++; 516 lance_init_locked(sc); 517 LE_UNLOCK(sc); 518 return; 519 } 520 521 /* 522 * Pretend we have carrier; if we don't this will be cleared shortly. 523 */ 524 if (!(sc->sc_flags & LE_CARRIER)) 525 if_link_state_change(ifp, LINK_STATE_UP); 526 sc->sc_flags |= LE_CARRIER; 527 528 if (isr & LE_C0_RINT) 529 am79900_rint(sc); 530 if (isr & LE_C0_TINT) 531 am79900_tint(sc); 532 533 /* Enable interrupts again. */ 534 (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA); 535 536 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 537 am79900_start_locked(sc); 538 539 LE_UNLOCK(sc); 540} 541 542/* 543 * Set up output on interface. 544 * Get another datagram to send off of the interface queue, and map it to the 545 * interface before starting the output. 546 */ 547static void 548am79900_start_locked(struct lance_softc *sc) 549{ 550 struct ifnet *ifp = sc->sc_ifp; 551 struct letmd tmd; 552 struct mbuf *m; 553 int bix, enq, len, rp; 554 555 LE_LOCK_ASSERT(sc, MA_OWNED); 556 557 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 558 IFF_DRV_RUNNING) 559 return; 560 561 bix = sc->sc_last_td; 562 enq = 0; 563 564 for (; sc->sc_no_td < sc->sc_ntbuf && 565 !IFQ_DRV_IS_EMPTY(&ifp->if_snd);) { 566 rp = LE_TMDADDR(sc, bix); 567 (*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd)); 568 569 if (LE_LE32TOH(tmd.tmd1) & LE_T1_OWN) { 570 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 571 if_printf(ifp, 572 "missing buffer, no_td = %d, last_td = %d\n", 573 sc->sc_no_td, sc->sc_last_td); 574 } 575 576 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 577 if (m == 0) 578 break; 579 580 /* 581 * If BPF is listening on this interface, let it see the packet 582 * before we commit it to the wire. 583 */ 584 BPF_MTAP(ifp, m); 585 586 /* 587 * Copy the mbuf chain into the transmit buffer. 588 */ 589 len = lance_put(sc, LE_TBUFADDR(sc, bix), m); 590 591#ifdef LEDEBUG 592 if (len > ETHERMTU + ETHER_HDR_LEN) 593 if_printf(ifp, "packet length %d\n", len); 594#endif 595 596 /* 597 * Init transmit registers, and set transmit start flag. 598 */ 599 tmd.tmd1 = LE_HTOLE32(LE_T1_OWN | LE_T1_STP | LE_T1_ENP | 600 LE_T1_ONES | (-len & 0xfff)); 601 tmd.tmd2 = 0; 602 tmd.tmd3 = 0; 603 604 (*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd)); 605 606#ifdef LEDEBUG 607 if (sc->sc_flags & LE_DEBUG) 608 am79900_xmit_print(sc, bix); 609#endif 610 611 (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD); 612 enq++; 613 614 if (++bix == sc->sc_ntbuf) 615 bix = 0; 616 617 if (++sc->sc_no_td == sc->sc_ntbuf) { 618 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 619 break; 620 } 621 } 622 623 sc->sc_last_td = bix; 624 625 if (enq > 0) 626 sc->sc_wdog_timer = 5; 627} 628 629#ifdef LEDEBUG 630static void 631am79900_recv_print(struct lance_softc *sc, int no) 632{ 633 struct ifnet *ifp = sc->sc_ifp; 634 struct ether_header eh; 635 struct lermd rmd; 636 uint16_t len; 637 638 (*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd)); 639 len = LE_LE32TOH(rmd.rmd2) & 0xfff; 640 if_printf(ifp, "receive buffer %d, len = %d\n", no, len); 641 if_printf(ifp, "status %04x\n", (*sc->sc_rdcsr)(sc, LE_CSR0)); 642 if_printf(ifp, "adr %08x, flags/blen %08x\n", LE_LE32TOH(rmd.rmd0), 643 LE_LE32TOH(rmd.rmd1)); 644 if (len - ETHER_CRC_LEN >= sizeof(eh)) { 645 (*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh)); 646 if_printf(ifp, "dst %s", ether_sprintf(eh.ether_dhost)); 647 printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), 648 ntohs(eh.ether_type)); 649 } 650} 651 652static void 653am79900_xmit_print(struct lance_softc *sc, int no) 654{ 655 struct ifnet *ifp = sc->sc_ifp; 656 struct ether_header eh; 657 struct letmd tmd; 658 uint16_t len; 659 660 (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd)); 661 len = -(LE_LE32TOH(tmd.tmd1) & 0xfff); 662 if_printf(ifp, "transmit buffer %d, len = %d\n", no, len); 663 if_printf(ifp, "status %04x\n", (*sc->sc_rdcsr)(sc, LE_CSR0)); 664 if_printf(ifp, "adr %08x, flags/blen %08x\n", LE_LE32TOH(tmd.tmd0), 665 LE_LE32TOH(tmd.tmd1)); 666 if (len >= sizeof(eh)) { 667 (*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh)); 668 if_printf(ifp, "dst %s", ether_sprintf(eh.ether_dhost)); 669 printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), 670 ntohs(eh.ether_type)); 671 } 672} 673#endif /* LEDEBUG */ 674