tulip.c revision 1.11
1 /* $NetBSD: tulip.c,v 1.11 1999/09/17 21:57:36 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999 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 of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 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 * Device driver for the Digital Semiconductor ``Tulip'' (21x4x) 42 * Ethernet controller family, and a variety of clone chips. 43 */ 44 45 #include "opt_inet.h" 46 #include "opt_ns.h" 47 #include "bpfilter.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/mbuf.h> 52 #include <sys/malloc.h> 53 #include <sys/kernel.h> 54 #include <sys/socket.h> 55 #include <sys/ioctl.h> 56 #include <sys/errno.h> 57 #include <sys/device.h> 58 59 #include <vm/vm.h> /* for PAGE_SIZE */ 60 61 #include <net/if.h> 62 #include <net/if_dl.h> 63 #include <net/if_media.h> 64 #include <net/if_ether.h> 65 66 #if NBPFILTER > 0 67 #include <net/bpf.h> 68 #endif 69 70 #ifdef INET 71 #include <netinet/in.h> 72 #include <netinet/if_inarp.h> 73 #endif 74 75 #ifdef NS 76 #include <netns/ns.h> 77 #include <netns/ns_if.h> 78 #endif 79 80 #include <machine/bus.h> 81 #include <machine/intr.h> 82 83 #include <dev/mii/mii.h> 84 #include <dev/mii/miivar.h> 85 86 #include <dev/ic/tulipreg.h> 87 #include <dev/ic/tulipvar.h> 88 89 /* 90 * The following tables compute the transmit threshold mode. We start 91 * at index 0. When ever we get a transmit underrun, we increment our 92 * index, falling back if we encounter the NULL terminator. 93 * 94 * Note: Store and forward mode is only available on the 100mbps chips 95 * (21140 and higher). 96 */ 97 const struct tulip_txthresh_tab tlp_10_txthresh_tab[] = { 98 { OPMODE_TR_72, "72 bytes" }, 99 { OPMODE_TR_96, "96 bytes" }, 100 { OPMODE_TR_128, "128 bytes" }, 101 { OPMODE_TR_160, "160 bytes" }, 102 { 0, NULL }, 103 }; 104 105 const struct tulip_txthresh_tab tlp_10_100_txthresh_tab[] = { 106 { OPMODE_TR_72, "72/128 bytes" }, 107 { OPMODE_TR_96, "96/256 bytes" }, 108 { OPMODE_TR_128, "128/512 bytes" }, 109 { OPMODE_TR_160, "160/1024 bytes" }, 110 { OPMODE_SF, "store and forward mode" }, 111 { 0, NULL }, 112 }; 113 114 #define TXTH_72 0 115 #define TXTH_96 1 116 #define TXTH_128 2 117 #define TXTH_160 3 118 #define TXTH_SF 4 119 120 /* 121 * The Winbond 89C840F does transmit threshold control totally 122 * differently. It simply has a 7-bit field which indicates 123 * the threshold: 124 * 125 * txth = ((OPMODE & OPMODE_WINB_TTH) >> OPMODE_WINB_TTH_SHIFT) * 16; 126 * 127 * However, we just do Store-and-Forward mode on these chips, since 128 * the DMA engines seem to be flaky. 129 */ 130 const struct tulip_txthresh_tab tlp_winb_txthresh_tab[] = { 131 { 0, "store and forward mode" }, 132 { 0, NULL }, 133 }; 134 135 #define TXTH_WINB_SF 0 136 137 void tlp_start __P((struct ifnet *)); 138 void tlp_watchdog __P((struct ifnet *)); 139 int tlp_ioctl __P((struct ifnet *, u_long, caddr_t)); 140 141 void tlp_shutdown __P((void *)); 142 143 void tlp_reset __P((struct tulip_softc *)); 144 int tlp_init __P((struct tulip_softc *)); 145 void tlp_rxdrain __P((struct tulip_softc *)); 146 void tlp_stop __P((struct tulip_softc *, int)); 147 int tlp_add_rxbuf __P((struct tulip_softc *, int)); 148 void tlp_idle __P((struct tulip_softc *, u_int32_t)); 149 void tlp_srom_idle __P((struct tulip_softc *)); 150 151 void tlp_filter_setup __P((struct tulip_softc *)); 152 void tlp_winb_filter_setup __P((struct tulip_softc *)); 153 154 void tlp_rxintr __P((struct tulip_softc *)); 155 void tlp_txintr __P((struct tulip_softc *)); 156 157 void tlp_mii_tick __P((void *)); 158 void tlp_mii_statchg __P((struct device *)); 159 void tlp_winb_mii_statchg __P((struct device *)); 160 161 void tlp_mii_getmedia __P((struct tulip_softc *, struct ifmediareq *)); 162 int tlp_mii_setmedia __P((struct tulip_softc *)); 163 164 void tlp_sio_mii_sync __P((struct tulip_softc *)); 165 void tlp_sio_mii_sendbits __P((struct tulip_softc *, u_int32_t, int)); 166 int tlp_sio_mii_readreg __P((struct device *, int, int)); 167 void tlp_sio_mii_writereg __P((struct device *, int, int, int)); 168 169 int tlp_pnic_mii_readreg __P((struct device *, int, int)); 170 void tlp_pnic_mii_writereg __P((struct device *, int, int, int)); 171 172 u_int32_t tlp_crc32 __P((const u_int8_t *, size_t)); 173 #define tlp_mchash(addr) (tlp_crc32((addr), ETHER_ADDR_LEN) & \ 174 (TULIP_MCHASHSIZE - 1)) 175 176 #ifdef TLP_DEBUG 177 #define DPRINTF(sc, x) if ((sc)->sc_ethercom.ec_if.if_flags & IFF_DEBUG) \ 178 printf x 179 #else 180 #define DPRINTF(sc, x) /* nothing */ 181 #endif 182 183 /* 184 * tlp_attach: 185 * 186 * Attach a Tulip interface to the system. 187 */ 188 void 189 tlp_attach(sc, enaddr) 190 struct tulip_softc *sc; 191 const u_int8_t *enaddr; 192 { 193 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 194 int i, rseg, error; 195 bus_dma_segment_t seg; 196 197 /* 198 * NOTE: WE EXPECT THE FRONT-END TO INITIALIZE sc_regshift! 199 */ 200 201 /* 202 * Setup the transmit threshold table. 203 */ 204 switch (sc->sc_chip) { 205 case TULIP_CHIP_DE425: 206 case TULIP_CHIP_21040: 207 case TULIP_CHIP_21041: 208 sc->sc_txth = tlp_10_txthresh_tab; 209 break; 210 211 default: 212 sc->sc_txth = tlp_10_100_txthresh_tab; 213 break; 214 } 215 216 /* 217 * Setup the filter setup function. 218 */ 219 switch (sc->sc_chip) { 220 case TULIP_CHIP_WB89C840F: 221 sc->sc_filter_setup = tlp_winb_filter_setup; 222 break; 223 224 default: 225 sc->sc_filter_setup = tlp_filter_setup; 226 break; 227 } 228 229 /* 230 * Set up the media status change function. 231 */ 232 switch (sc->sc_chip) { 233 case TULIP_CHIP_WB89C840F: 234 sc->sc_statchg = tlp_winb_mii_statchg; 235 break; 236 237 default: 238 /* 239 * We may override this if we have special media 240 * handling requirements (e.g. flipping GPIO pins). 241 * 242 * The pure-MII statchg function covers the basics. 243 */ 244 sc->sc_statchg = tlp_mii_statchg; 245 break; 246 } 247 248 /* 249 * Set up various chip-specific quirks. 250 */ 251 switch (sc->sc_chip) { 252 case TULIP_CHIP_82C168: 253 case TULIP_CHIP_82C169: 254 /* 255 * These chips seem to have busted DMA engines; just put them 256 * in Store-and-Forward mode from the get-go. 257 */ 258 sc->sc_txthresh = TXTH_SF; 259 break; 260 261 case TULIP_CHIP_WB89C840F: 262 sc->sc_flags |= TULIPF_IC_FS; 263 break; 264 265 default: 266 /* Nothing. */ 267 } 268 269 SIMPLEQ_INIT(&sc->sc_txfreeq); 270 SIMPLEQ_INIT(&sc->sc_txdirtyq); 271 272 /* 273 * Allocate the control data structures, and create and load the 274 * DMA map for it. 275 */ 276 if ((error = bus_dmamem_alloc(sc->sc_dmat, 277 sizeof(struct tulip_control_data), PAGE_SIZE, 0, &seg, 1, &rseg, 278 0)) != 0) { 279 printf("%s: unable to allocate control data, error = %d\n", 280 sc->sc_dev.dv_xname, error); 281 goto fail_0; 282 } 283 284 if ((error = bus_dmamem_map(sc->sc_dmat, &seg, rseg, 285 sizeof(struct tulip_control_data), (caddr_t *)&sc->sc_control_data, 286 BUS_DMA_COHERENT)) != 0) { 287 printf("%s: unable to map control data, error = %d\n", 288 sc->sc_dev.dv_xname, error); 289 goto fail_1; 290 } 291 292 if ((error = bus_dmamap_create(sc->sc_dmat, 293 sizeof(struct tulip_control_data), 1, 294 sizeof(struct tulip_control_data), 0, 0, &sc->sc_cddmamap)) != 0) { 295 printf("%s: unable to create control data DMA map, " 296 "error = %d\n", sc->sc_dev.dv_xname, error); 297 goto fail_2; 298 } 299 300 if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_cddmamap, 301 sc->sc_control_data, sizeof(struct tulip_control_data), NULL, 302 0)) != 0) { 303 printf("%s: unable to load control data DMA map, error = %d\n", 304 sc->sc_dev.dv_xname, error); 305 goto fail_3; 306 } 307 308 /* 309 * Create the transmit buffer DMA maps. 310 */ 311 for (i = 0; i < TULIP_TXQUEUELEN; i++) { 312 if ((error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 313 TULIP_NTXSEGS, MCLBYTES, 0, 0, 314 &sc->sc_txsoft[i].txs_dmamap)) != 0) { 315 printf("%s: unable to create tx DMA map %d, " 316 "error = %d\n", sc->sc_dev.dv_xname, i, error); 317 goto fail_4; 318 } 319 } 320 321 /* 322 * Create the recieve buffer DMA maps. 323 */ 324 for (i = 0; i < TULIP_NRXDESC; i++) { 325 if ((error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, 326 MCLBYTES, 0, 0, &sc->sc_rxsoft[i].rxs_dmamap)) != 0) { 327 printf("%s: unable to create rx DMA map %d, " 328 "error = %d\n", sc->sc_dev.dv_xname, i, error); 329 goto fail_5; 330 } 331 sc->sc_rxsoft[i].rxs_mbuf = NULL; 332 } 333 334 /* 335 * Reset the chip to a known state. 336 */ 337 tlp_reset(sc); 338 339 /* Announce ourselves. */ 340 printf("%s: %s%sEthernet address %s\n", sc->sc_dev.dv_xname, 341 sc->sc_name[0] != '\0' ? sc->sc_name : "", 342 sc->sc_name[0] != '\0' ? ", " : "", 343 ether_sprintf(enaddr)); 344 345 /* 346 * Initialize our media structures. This may probe the MII, if 347 * present. 348 */ 349 (*sc->sc_mediasw->tmsw_init)(sc); 350 351 ifp = &sc->sc_ethercom.ec_if; 352 strcpy(ifp->if_xname, sc->sc_dev.dv_xname); 353 ifp->if_softc = sc; 354 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 355 ifp->if_ioctl = tlp_ioctl; 356 ifp->if_start = tlp_start; 357 ifp->if_watchdog = tlp_watchdog; 358 359 /* 360 * Attach the interface. 361 */ 362 if_attach(ifp); 363 ether_ifattach(ifp, enaddr); 364 #if NBPFILTER > 0 365 bpfattach(&sc->sc_ethercom.ec_if.if_bpf, ifp, DLT_EN10MB, 366 sizeof(struct ether_header)); 367 #endif 368 369 /* 370 * Make sure the interface is shutdown during reboot. 371 */ 372 sc->sc_sdhook = shutdownhook_establish(tlp_shutdown, sc); 373 if (sc->sc_sdhook == NULL) 374 printf("%s: WARNING: unable to establish shutdown hook\n", 375 sc->sc_dev.dv_xname); 376 return; 377 378 /* 379 * Free any resources we've allocated during the failed attach 380 * attempt. Do this in reverse order and fall through. 381 */ 382 fail_5: 383 for (i = 0; i < TULIP_NRXDESC; i++) { 384 if (sc->sc_rxsoft[i].rxs_dmamap != NULL) 385 bus_dmamap_destroy(sc->sc_dmat, 386 sc->sc_rxsoft[i].rxs_dmamap); 387 } 388 fail_4: 389 for (i = 0; i < TULIP_TXQUEUELEN; i++) { 390 if (sc->sc_txsoft[i].txs_dmamap != NULL) 391 bus_dmamap_destroy(sc->sc_dmat, 392 sc->sc_txsoft[i].txs_dmamap); 393 } 394 bus_dmamap_unload(sc->sc_dmat, sc->sc_cddmamap); 395 fail_3: 396 bus_dmamap_destroy(sc->sc_dmat, sc->sc_cddmamap); 397 fail_2: 398 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->sc_control_data, 399 sizeof(struct tulip_control_data)); 400 fail_1: 401 bus_dmamem_free(sc->sc_dmat, &seg, rseg); 402 fail_0: 403 return; 404 } 405 406 /* 407 * tlp_shutdown: 408 * 409 * Make sure the interface is stopped at reboot time. 410 */ 411 void 412 tlp_shutdown(arg) 413 void *arg; 414 { 415 struct tulip_softc *sc = arg; 416 417 tlp_stop(sc, 1); 418 } 419 420 /* 421 * tlp_start: [ifnet interface function] 422 * 423 * Start packet transmission on the interface. 424 */ 425 void 426 tlp_start(ifp) 427 struct ifnet *ifp; 428 { 429 struct tulip_softc *sc = ifp->if_softc; 430 struct mbuf *m0, *m; 431 struct tulip_txsoft *txs, *last_txs; 432 bus_dmamap_t dmamap; 433 int error, firsttx, nexttx, lasttx, ofree, seg; 434 435 DPRINTF(sc, ("%s: tlp_start: sc_flags 0x%08x, if_flags 0x%08x\n", 436 sc->sc_dev.dv_xname, sc->sc_flags, ifp->if_flags)); 437 438 /* 439 * If we want a filter setup, it means no more descriptors were 440 * available for the setup routine. Let it get a chance to wedge 441 * itself into the ring. 442 */ 443 if (sc->sc_flags & TULIPF_WANT_SETUP) 444 ifp->if_flags |= IFF_OACTIVE; 445 446 if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING) 447 return; 448 449 /* 450 * Remember the previous number of free descriptors and 451 * the first descriptor we'll use. 452 */ 453 ofree = sc->sc_txfree; 454 firsttx = sc->sc_txnext; 455 456 DPRINTF(sc, ("%s: tlp_start: txfree %d, txnext %d\n", 457 sc->sc_dev.dv_xname, ofree, firsttx)); 458 459 /* 460 * Loop through the send queue, setting up transmit descriptors 461 * until we drain the queue, or use up all available transmit 462 * descriptors. 463 */ 464 while ((txs = SIMPLEQ_FIRST(&sc->sc_txfreeq)) != NULL && 465 sc->sc_txfree != 0) { 466 /* 467 * Grab a packet off the queue. 468 */ 469 IF_DEQUEUE(&ifp->if_snd, m0); 470 if (m0 == NULL) 471 break; 472 473 dmamap = txs->txs_dmamap; 474 475 /* 476 * Load the DMA map. If this fails, the packet either 477 * didn't fit in the alloted number of segments, or we were 478 * short on resources. In this case, we'll copy and try 479 * again. 480 */ 481 if (bus_dmamap_load_mbuf(sc->sc_dmat, dmamap, m0, 482 BUS_DMA_NOWAIT) != 0) { 483 MGETHDR(m, M_DONTWAIT, MT_DATA); 484 if (m == NULL) { 485 printf("%s: unable to allocate Tx mbuf\n", 486 sc->sc_dev.dv_xname); 487 IF_PREPEND(&ifp->if_snd, m0); 488 break; 489 } 490 if (m0->m_pkthdr.len > MHLEN) { 491 MCLGET(m, M_DONTWAIT); 492 if ((m->m_flags & M_EXT) == 0) { 493 printf("%s: unable to allocate Tx " 494 "cluster\n", sc->sc_dev.dv_xname); 495 m_freem(m); 496 IF_PREPEND(&ifp->if_snd, m0); 497 break; 498 } 499 } 500 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, caddr_t)); 501 m->m_pkthdr.len = m->m_len = m0->m_pkthdr.len; 502 m_freem(m0); 503 m0 = m; 504 error = bus_dmamap_load_mbuf(sc->sc_dmat, dmamap, 505 m0, BUS_DMA_NOWAIT); 506 if (error) { 507 printf("%s: unable to load Tx buffer, " 508 "error = %d\n", sc->sc_dev.dv_xname, error); 509 IF_PREPEND(&ifp->if_snd, m0); 510 break; 511 } 512 } 513 514 /* 515 * Ensure we have enough descriptors free to describe 516 * the packet. 517 */ 518 if (dmamap->dm_nsegs > sc->sc_txfree) { 519 /* 520 * Not enough free descriptors to transmit this 521 * packet. We haven't committed to anything yet, 522 * so just unload the DMA map, put the packet 523 * back on the queue, and punt. Notify the upper 524 * layer that there are no more slots left. 525 * 526 * XXX We could allocate an mbuf and copy, but 527 * XXX it is worth it? 528 */ 529 ifp->if_flags |= IFF_OACTIVE; 530 bus_dmamap_unload(sc->sc_dmat, dmamap); 531 IF_PREPEND(&ifp->if_snd, m0); 532 break; 533 } 534 535 /* 536 * WE ARE NOW COMMITTED TO TRANSMITTING THE PACKET. 537 */ 538 539 /* Sync the DMA map. */ 540 bus_dmamap_sync(sc->sc_dmat, dmamap, 0, dmamap->dm_mapsize, 541 BUS_DMASYNC_PREWRITE); 542 543 /* 544 * Initialize the transmit descriptors. 545 */ 546 for (nexttx = sc->sc_txnext, seg = 0; 547 seg < dmamap->dm_nsegs; 548 seg++, nexttx = TULIP_NEXTTX(nexttx)) { 549 /* 550 * If this is the first descriptor we're 551 * enqueueing, don't set the OWN bit just 552 * yet. That could cause a race condition. 553 * We'll do it below. 554 */ 555 sc->sc_txdescs[nexttx].td_status = 556 (nexttx == firsttx) ? 0 : TDSTAT_OWN; 557 sc->sc_txdescs[nexttx].td_bufaddr1 = 558 dmamap->dm_segs[seg].ds_addr; 559 sc->sc_txdescs[nexttx].td_ctl = 560 (dmamap->dm_segs[seg].ds_len << TDCTL_SIZE1_SHIFT) | 561 TDCTL_CH; 562 lasttx = nexttx; 563 } 564 565 /* Set `first segment' and `last segment' appropriately. */ 566 sc->sc_txdescs[sc->sc_txnext].td_ctl |= TDCTL_Tx_FS; 567 sc->sc_txdescs[lasttx].td_ctl |= TDCTL_Tx_LS; 568 569 #ifdef TLP_DEBUG 570 if (ifp->if_flags & IFF_DEBUG) { 571 printf(" txsoft %p trainsmit chain:\n", txs); 572 for (seg = sc->sc_txnext;; seg = TULIP_NEXTTX(seg)) { 573 printf(" descriptor %d:\n", seg); 574 printf(" td_status: 0x%08x\n", 575 sc->sc_txdescs[seg].td_status); 576 printf(" td_ctl: 0x%08x\n", 577 sc->sc_txdescs[seg].td_ctl); 578 printf(" td_bufaddr1: 0x%08x\n", 579 sc->sc_txdescs[seg].td_bufaddr1); 580 printf(" td_bufaddr2: 0x%08x\n", 581 sc->sc_txdescs[seg].td_bufaddr2); 582 if (seg == lasttx) 583 break; 584 } 585 } 586 #endif 587 588 /* Sync the descriptors we're using. */ 589 TULIP_CDTXSYNC(sc, sc->sc_txnext, dmamap->dm_nsegs, 590 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 591 592 /* 593 * Store a pointer to the packet so we can free it later, 594 * and remember what txdirty will be once the packet is 595 * done. 596 */ 597 txs->txs_mbuf = m0; 598 txs->txs_firstdesc = sc->sc_txnext; 599 txs->txs_lastdesc = lasttx; 600 601 /* Advance the tx pointer. */ 602 sc->sc_txfree -= dmamap->dm_nsegs; 603 sc->sc_txnext = nexttx; 604 605 SIMPLEQ_REMOVE_HEAD(&sc->sc_txfreeq, txs, txs_q); 606 SIMPLEQ_INSERT_TAIL(&sc->sc_txdirtyq, txs, txs_q); 607 608 last_txs = txs; 609 610 #if NBPFILTER > 0 611 /* 612 * Pass the packet to any BPF listeners. 613 */ 614 if (ifp->if_bpf) 615 bpf_mtap(ifp->if_bpf, m0); 616 #endif /* NBPFILTER > 0 */ 617 } 618 619 if (txs == NULL || sc->sc_txfree == 0) { 620 /* No more slots left; notify upper layer. */ 621 ifp->if_flags |= IFF_OACTIVE; 622 } 623 624 if (sc->sc_txfree != ofree) { 625 DPRINTF(sc, ("%s: packets enqueued, IC on %d, OWN on %d\n", 626 sc->sc_dev.dv_xname, lasttx, firsttx)); 627 /* 628 * Cause a transmit interrupt to happen on the 629 * last packet we enqueued. 630 */ 631 sc->sc_txdescs[lasttx].td_ctl |= TDCTL_Tx_IC; 632 TULIP_CDTXSYNC(sc, lasttx, 1, 633 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 634 635 /* 636 * Some clone chips want IC on the *first* segment in 637 * the packet. Appease them. 638 */ 639 if ((sc->sc_flags & TULIPF_IC_FS) != 0 && 640 last_txs->txs_firstdesc != lasttx) { 641 sc->sc_txdescs[last_txs->txs_firstdesc].td_ctl |= 642 TDCTL_Tx_IC; 643 TULIP_CDTXSYNC(sc, last_txs->txs_firstdesc, 1, 644 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 645 } 646 647 /* 648 * The entire packet chain is set up. Give the 649 * first descriptor to the chip now. 650 */ 651 sc->sc_txdescs[firsttx].td_status |= TDSTAT_OWN; 652 TULIP_CDTXSYNC(sc, firsttx, 1, 653 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 654 655 /* Wake up the transmitter. */ 656 /* XXX USE AUTOPOLLING? */ 657 TULIP_WRITE(sc, CSR_TXPOLL, TXPOLL_TPD); 658 659 /* Set a watchdog timer in case the chip flakes out. */ 660 ifp->if_timer = 5; 661 } 662 } 663 664 /* 665 * tlp_watchdog: [ifnet interface function] 666 * 667 * Watchdog timer handler. 668 */ 669 void 670 tlp_watchdog(ifp) 671 struct ifnet *ifp; 672 { 673 struct tulip_softc *sc = ifp->if_softc; 674 int doing_setup, doing_transmit; 675 676 doing_setup = (sc->sc_flags & TULIPF_DOING_SETUP); 677 doing_transmit = (SIMPLEQ_FIRST(&sc->sc_txdirtyq) != NULL); 678 679 if (doing_setup && doing_transmit) { 680 printf("%s: filter setup and transmit timeout\n", 681 sc->sc_dev.dv_xname); 682 ifp->if_oerrors++; 683 } else if (doing_transmit) { 684 printf("%s: transmit timeout\n", sc->sc_dev.dv_xname); 685 ifp->if_oerrors++; 686 } else if (doing_setup) 687 printf("%s: filter setup timeout\n", sc->sc_dev.dv_xname); 688 else 689 printf("%s: spurious watchdog timeout\n", sc->sc_dev.dv_xname); 690 691 (void) tlp_init(sc); 692 693 /* Try to get more packets going. */ 694 tlp_start(ifp); 695 } 696 697 /* 698 * tlp_ioctl: [ifnet interface function] 699 * 700 * Handle control requests from the operator. 701 */ 702 int 703 tlp_ioctl(ifp, cmd, data) 704 struct ifnet *ifp; 705 u_long cmd; 706 caddr_t data; 707 { 708 struct tulip_softc *sc = ifp->if_softc; 709 struct ifreq *ifr = (struct ifreq *)data; 710 struct ifaddr *ifa = (struct ifaddr *)data; 711 int s, error = 0; 712 713 s = splnet(); 714 715 switch (cmd) { 716 case SIOCSIFADDR: 717 ifp->if_flags |= IFF_UP; 718 719 switch (ifa->ifa_addr->sa_family) { 720 #ifdef INET 721 case AF_INET: 722 if ((error = tlp_init(sc)) != 0) 723 break; 724 arp_ifinit(ifp, ifa); 725 break; 726 #endif /* INET */ 727 #ifdef NS 728 case AF_NS: 729 { 730 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 731 732 if (ns_nullhost(*ina)) 733 ina->x_host = *(union ns_host *) 734 LLADDR(ifp->if_sadl); 735 else 736 bcopy(ina->x_host.c_host, LLADDR(ifp->if_sadl), 737 ifp->if_addrlen); 738 /* Set new address. */ 739 error = tlp_init(sc); 740 break; 741 } 742 #endif /* NS */ 743 default: 744 error = tlp_init(sc); 745 break; 746 } 747 break; 748 749 case SIOCSIFMTU: 750 if (ifr->ifr_mtu > ETHERMTU) 751 error = EINVAL; 752 else 753 ifp->if_mtu = ifr->ifr_mtu; 754 break; 755 756 case SIOCSIFFLAGS: 757 if ((ifp->if_flags & IFF_UP) == 0 && 758 (ifp->if_flags & IFF_RUNNING) != 0) { 759 /* 760 * If interface is marked down and it is running, then 761 * stop it. 762 */ 763 tlp_stop(sc, 1); 764 } else if ((ifp->if_flags & IFF_UP) != 0 && 765 (ifp->if_flags & IFF_RUNNING) == 0) { 766 /* 767 * If interfase it marked up and it is stopped, then 768 * start it. 769 */ 770 error = tlp_init(sc); 771 } else if ((ifp->if_flags & IFF_UP) != 0) { 772 /* 773 * Reset the interface to pick up changes in any other 774 * flags that affect the hardware state. 775 */ 776 error = tlp_init(sc); 777 } 778 break; 779 780 case SIOCADDMULTI: 781 case SIOCDELMULTI: 782 error = (cmd == SIOCADDMULTI) ? 783 ether_addmulti(ifr, &sc->sc_ethercom) : 784 ether_delmulti(ifr, &sc->sc_ethercom); 785 786 if (error == ENETRESET) { 787 /* 788 * Multicast list has changed. Set the filter 789 * accordingly. 790 */ 791 (*sc->sc_filter_setup)(sc); 792 error = 0; 793 } 794 break; 795 796 case SIOCSIFMEDIA: 797 case SIOCGIFMEDIA: 798 error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd); 799 break; 800 801 default: 802 error = EINVAL; 803 break; 804 } 805 806 /* Try to get more packets going. */ 807 tlp_start(ifp); 808 809 splx(s); 810 return (error); 811 } 812 813 /* 814 * tlp_intr: 815 * 816 * Interrupt service routine. 817 */ 818 int 819 tlp_intr(arg) 820 void *arg; 821 { 822 struct tulip_softc *sc = arg; 823 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 824 u_int32_t status, rxstatus, txstatus; 825 int handled = 0, txthresh; 826 827 DPRINTF(sc, ("%s: tlp_intr\n", sc->sc_dev.dv_xname)); 828 829 /* 830 * If the interface isn't running, the interrupt couldn't 831 * possibly have come from us. 832 */ 833 if ((ifp->if_flags & IFF_RUNNING) == 0) 834 return (0); 835 836 for (;;) { 837 status = TULIP_READ(sc, CSR_STATUS); 838 if (status) 839 TULIP_WRITE(sc, CSR_STATUS, status); 840 841 if ((status & sc->sc_inten) == 0) 842 break; 843 844 handled = 1; 845 846 rxstatus = status & sc->sc_rxint_mask; 847 txstatus = status & sc->sc_txint_mask; 848 849 if (rxstatus) { 850 /* Grab new any new packets. */ 851 tlp_rxintr(sc); 852 853 if (rxstatus & STATUS_RWT) 854 printf("%s: receive watchdog timeout\n", 855 sc->sc_dev.dv_xname); 856 857 if (rxstatus & STATUS_RU) { 858 printf("%s: receive ring overrun\n", 859 sc->sc_dev.dv_xname); 860 /* Get the receive process going again. */ 861 tlp_idle(sc, OPMODE_SR); 862 TULIP_WRITE(sc, CSR_RXLIST, 863 TULIP_CDRXADDR(sc, sc->sc_rxptr)); 864 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 865 TULIP_WRITE(sc, CSR_RXPOLL, RXPOLL_RPD); 866 break; 867 } 868 } 869 870 if (txstatus) { 871 /* Sweep up transmit descriptors. */ 872 tlp_txintr(sc); 873 874 if (txstatus & STATUS_TJT) 875 printf("%s: transmit jabber timeout\n", 876 sc->sc_dev.dv_xname); 877 878 if (txstatus & STATUS_UNF) { 879 /* 880 * Increase our transmit threshold if 881 * another is available. 882 */ 883 txthresh = sc->sc_txthresh + 1; 884 if (sc->sc_txth[txthresh].txth_name != NULL) { 885 /* Idle the transmit process. */ 886 tlp_idle(sc, OPMODE_ST); 887 888 sc->sc_txthresh = txthresh; 889 sc->sc_opmode &= ~(OPMODE_TR|OPMODE_SF); 890 sc->sc_opmode |= 891 sc->sc_txth[txthresh].txth_opmode; 892 printf("%s: transmit underrun; new " 893 "threshold: %s\n", 894 sc->sc_dev.dv_xname, 895 sc->sc_txth[txthresh].txth_name); 896 897 /* 898 * Set the new threshold and restart 899 * the transmit process. 900 */ 901 TULIP_WRITE(sc, CSR_OPMODE, 902 sc->sc_opmode); 903 } 904 /* 905 * XXX Log every Nth underrun from 906 * XXX now on? 907 */ 908 } 909 } 910 911 if (status & (STATUS_TPS|STATUS_RPS)) { 912 if (status & STATUS_TPS) 913 printf("%s: transmit process stopped\n", 914 sc->sc_dev.dv_xname); 915 if (status & STATUS_RPS) 916 printf("%s: receive process stopped\n", 917 sc->sc_dev.dv_xname); 918 (void) tlp_init(sc); 919 break; 920 } 921 922 if (status & STATUS_SE) { 923 const char *str; 924 switch (status & STATUS_EB) { 925 case STATUS_EB_PARITY: 926 str = "parity error"; 927 break; 928 929 case STATUS_EB_MABT: 930 str = "master abort"; 931 break; 932 933 case STATUS_EB_TABT: 934 str = "target abort"; 935 break; 936 937 default: 938 str = "unknown error"; 939 break; 940 } 941 printf("%s: fatal system error: %s\n", 942 sc->sc_dev.dv_xname, str); 943 (void) tlp_init(sc); 944 break; 945 } 946 947 /* 948 * Not handled: 949 * 950 * Transmit buffer unavailable -- normal 951 * condition, nothing to do, really. 952 * 953 * General purpose timer experied -- we don't 954 * use the general purpose timer. 955 * 956 * Early receive interrupt -- not available on 957 * all chips, we just use RI. We also only 958 * use single-segment receive DMA, so this 959 * is mostly useless. 960 */ 961 } 962 963 /* Try to get more packets going. */ 964 tlp_start(ifp); 965 966 return (handled); 967 } 968 969 /* 970 * tlp_rxintr: 971 * 972 * Helper; handle receive interrupts. 973 */ 974 void 975 tlp_rxintr(sc) 976 struct tulip_softc *sc; 977 { 978 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 979 struct ether_header *eh; 980 struct tulip_rxsoft *rxs; 981 struct mbuf *m; 982 u_int32_t rxstat; 983 int i, len; 984 985 for (i = sc->sc_rxptr;; i = TULIP_NEXTRX(i)) { 986 rxs = &sc->sc_rxsoft[i]; 987 988 TULIP_CDRXSYNC(sc, i, 989 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 990 991 rxstat = sc->sc_rxdescs[i].td_status; 992 993 if (rxstat & TDSTAT_OWN) { 994 /* 995 * We have processed all of the receive buffers. 996 */ 997 break; 998 } 999 1000 /* 1001 * Make sure the packet fit in one buffer. This should 1002 * always be the case. But the Lite-On PNIC, rev 33 1003 * has an awful receive engine bug, which may require 1004 * a very icky work-around. 1005 */ 1006 if ((rxstat & (TDSTAT_Rx_FS|TDSTAT_Rx_LS)) != 1007 (TDSTAT_Rx_FS|TDSTAT_Rx_LS)) { 1008 printf("%s: incoming packet spilled, resetting\n", 1009 sc->sc_dev.dv_xname); 1010 (void) tlp_init(sc); 1011 return; 1012 } 1013 1014 /* 1015 * If any collisions were seen on the wire, count one. 1016 */ 1017 if (rxstat & TDSTAT_Rx_CS) 1018 ifp->if_collisions++; 1019 1020 /* 1021 * If an error occured, update stats, clear the status 1022 * word, and leave the packet buffer in place. It will 1023 * simply be reused the next time the ring comes around. 1024 */ 1025 if (rxstat & TDSTAT_ES) { 1026 #define PRINTERR(bit, str) \ 1027 if (rxstat & (bit)) \ 1028 printf("%s: receive error: %s\n", \ 1029 sc->sc_dev.dv_xname, str) 1030 ifp->if_ierrors++; 1031 PRINTERR(TDSTAT_Rx_DE, "descriptor error"); 1032 PRINTERR(TDSTAT_Rx_RF, "runt frame"); 1033 PRINTERR(TDSTAT_Rx_TL, "frame too long"); 1034 PRINTERR(TDSTAT_Rx_RE, "MII error"); 1035 PRINTERR(TDSTAT_Rx_DB, "dribbling bit"); 1036 PRINTERR(TDSTAT_Rx_CE, "CRC error"); 1037 #undef PRINTERR 1038 TULIP_INIT_RXDESC(sc, i); 1039 continue; 1040 } 1041 1042 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1043 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD); 1044 1045 /* 1046 * No errors; receive the packet. Note the Tulip 1047 * includes the CRC with every packet; trim it. 1048 */ 1049 len = TDSTAT_Rx_LENGTH(rxstat) - ETHER_CRC_LEN; 1050 1051 #ifdef __NO_STRICT_ALIGNMENT 1052 /* 1053 * Allocate a new mbuf cluster. If that fails, we are 1054 * out of memory, and must drop the packet and recycle 1055 * the buffer that's already attached to this descriptor. 1056 */ 1057 m = rxs->rxs_mbuf; 1058 if (tlp_add_rxbuf(sc, i) != 0) { 1059 ifp->if_ierrors++; 1060 TULIP_INIT_RXDESC(sc, i); 1061 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1062 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD); 1063 continue; 1064 } 1065 #else 1066 /* 1067 * The Tulip's receive buffers must be 4-byte aligned. 1068 * But this means that the data after the Ethernet header 1069 * is misaligned. We must allocate a new buffer and 1070 * copy the data, shifted forward 2 bytes. 1071 */ 1072 MGETHDR(m, M_DONTWAIT, MT_DATA); 1073 if (m == NULL) { 1074 dropit: 1075 ifp->if_ierrors++; 1076 TULIP_INIT_RXDESC(sc, i); 1077 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1078 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD); 1079 continue; 1080 } 1081 if (len > (MHLEN - 2)) { 1082 MCLGET(m, M_DONTWAIT); 1083 if ((m->m_flags & M_EXT) == 0) { 1084 m_freem(m); 1085 goto dropit; 1086 } 1087 } 1088 m->m_data += 2; 1089 1090 /* 1091 * Note that we use clusters for incoming frames, so the 1092 * buffer is virtually contiguous. 1093 */ 1094 memcpy(mtod(m, caddr_t), mtod(rxs->rxs_mbuf, caddr_t), len); 1095 1096 /* Allow the receive descriptor to continue using its mbuf. */ 1097 TULIP_INIT_RXDESC(sc, i); 1098 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1099 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD); 1100 #endif /* __NO_STRICT_ALIGNMENT */ 1101 1102 ifp->if_ipackets++; 1103 eh = mtod(m, struct ether_header *); 1104 m->m_pkthdr.rcvif = ifp; 1105 m->m_pkthdr.len = m->m_len = len; 1106 1107 #if NBPFILTER > 0 1108 /* 1109 * Pass this up to any BPF listeners, but only 1110 * pass it up the stack if its for us. 1111 */ 1112 if (ifp->if_bpf) 1113 bpf_mtap(ifp->if_bpf, m); 1114 #endif /* NPBFILTER > 0 */ 1115 1116 /* 1117 * This test is outside the NBPFILTER block because 1118 * on the 21140 we have to use Hash-Only mode due to 1119 * a bug in the filter logic. 1120 */ 1121 if ((ifp->if_flags & IFF_PROMISC) != 0 || 1122 sc->sc_filtmode == TDCTL_Tx_FT_HASHONLY) { 1123 if (memcmp(LLADDR(ifp->if_sadl), eh->ether_dhost, 1124 ETHER_ADDR_LEN) != 0 && 1125 ETHER_IS_MULTICAST(eh->ether_dhost) == 0) { 1126 m_freem(m); 1127 continue; 1128 } 1129 } 1130 1131 /* Pass it on. */ 1132 (*ifp->if_input)(ifp, m); 1133 } 1134 1135 /* Update the recieve pointer. */ 1136 sc->sc_rxptr = i; 1137 } 1138 1139 /* 1140 * tlp_txintr: 1141 * 1142 * Helper; handle transmit interrupts. 1143 */ 1144 void 1145 tlp_txintr(sc) 1146 struct tulip_softc *sc; 1147 { 1148 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1149 struct tulip_txsoft *txs; 1150 u_int32_t txstat; 1151 1152 DPRINTF(sc, ("%s: tlp_txintr: sc_flags 0x%08x\n", 1153 sc->sc_dev.dv_xname, sc->sc_flags)); 1154 1155 ifp->if_flags &= ~IFF_OACTIVE; 1156 1157 /* 1158 * If we were doing a filter setup, check to see if it completed. 1159 */ 1160 if (sc->sc_flags & TULIPF_DOING_SETUP) { 1161 TULIP_CDSDSYNC(sc, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 1162 if ((sc->sc_setup_desc.td_status & TDSTAT_OWN) == 0) 1163 sc->sc_flags &= ~TULIPF_DOING_SETUP; 1164 } 1165 1166 /* 1167 * Go through our Tx list and free mbufs for those 1168 * frames that have been transmitted. 1169 */ 1170 while ((txs = SIMPLEQ_FIRST(&sc->sc_txdirtyq)) != NULL) { 1171 TULIP_CDTXSYNC(sc, txs->txs_firstdesc, 1172 txs->txs_dmamap->dm_nsegs, 1173 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 1174 1175 #ifdef TLP_DEBUG 1176 if (ifp->if_flags & IFF_DEBUG) { 1177 int i; 1178 printf(" txsoft %p trainsmit chain:\n", txs); 1179 for (i = txs->txs_firstdesc;; i = TULIP_NEXTTX(i)) { 1180 printf(" descriptor %d:\n", i); 1181 printf(" td_status: 0x%08x\n", 1182 sc->sc_txdescs[i].td_status); 1183 printf(" td_ctl: 0x%08x\n", 1184 sc->sc_txdescs[i].td_ctl); 1185 printf(" td_bufaddr1: 0x%08x\n", 1186 sc->sc_txdescs[i].td_bufaddr1); 1187 printf(" td_bufaddr2: 0x%08x\n", 1188 sc->sc_txdescs[i].td_bufaddr2); 1189 if (i == txs->txs_lastdesc) 1190 break; 1191 } 1192 } 1193 #endif 1194 1195 txstat = sc->sc_txdescs[txs->txs_firstdesc].td_status; 1196 if (txstat & TDSTAT_OWN) 1197 break; 1198 1199 SIMPLEQ_REMOVE_HEAD(&sc->sc_txdirtyq, txs, txs_q); 1200 1201 sc->sc_txfree += txs->txs_dmamap->dm_nsegs; 1202 1203 bus_dmamap_sync(sc->sc_dmat, txs->txs_dmamap, 1204 0, txs->txs_dmamap->dm_mapsize, 1205 BUS_DMASYNC_POSTWRITE); 1206 bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap); 1207 m_freem(txs->txs_mbuf); 1208 txs->txs_mbuf = NULL; 1209 1210 SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q); 1211 1212 /* 1213 * Check for errors and collisions. 1214 */ 1215 if (txstat & 1216 (TDSTAT_Tx_UF|TDSTAT_Tx_NC|TDSTAT_Tx_LO|TDSTAT_Tx_TO)) { 1217 ifp->if_oerrors++; 1218 #if 0 1219 /* 1220 * XXX Can't check for late or excessive collisions; 1221 * XXX Some 21040s seem to register those even on 1222 * XXX successful transmissions! 1223 */ 1224 if (txstat & TDSTAT_Tx_EC) 1225 ifp->if_collisions += 16; 1226 if (txstat & TDSTAT_Tx_LC) 1227 ifp->if_collisions++; 1228 #endif 1229 } else { 1230 /* Packet was transmitted successfully. */ 1231 ifp->if_opackets++; 1232 ifp->if_collisions += TDSTAT_Tx_COLLISIONS(txstat); 1233 } 1234 } 1235 1236 /* 1237 * If there are no more pending transmissions, cancel the watchdog 1238 * timer. 1239 */ 1240 if (txs == NULL && (sc->sc_flags & TULIPF_DOING_SETUP) == 0) 1241 ifp->if_timer = 0; 1242 1243 /* 1244 * If we have a receive filter setup pending, do it now. 1245 */ 1246 if (sc->sc_flags & TULIPF_WANT_SETUP) 1247 (*sc->sc_filter_setup)(sc); 1248 } 1249 1250 /* 1251 * tlp_reset: 1252 * 1253 * Perform a soft reset on the Tulip. 1254 */ 1255 void 1256 tlp_reset(sc) 1257 struct tulip_softc *sc; 1258 { 1259 int i; 1260 1261 TULIP_WRITE(sc, CSR_BUSMODE, BUSMODE_SWR); 1262 1263 for (i = 0; i < 1000; i++) { 1264 if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR) == 0) 1265 break; 1266 delay(10); 1267 } 1268 1269 if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR)) 1270 printf("%s: reset failed to complete\n", sc->sc_dev.dv_xname); 1271 1272 delay(1000); 1273 } 1274 1275 /* 1276 * tlp_init: 1277 * 1278 * Initialize the interface. Must be called at splnet(). 1279 */ 1280 int 1281 tlp_init(sc) 1282 struct tulip_softc *sc; 1283 { 1284 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1285 struct tulip_txsoft *txs; 1286 struct tulip_rxsoft *rxs; 1287 int i, error = 0; 1288 1289 /* 1290 * Cancel any pending I/O. 1291 */ 1292 tlp_stop(sc, 0); 1293 1294 /* 1295 * Reset the Tulip to a known state. 1296 */ 1297 tlp_reset(sc); 1298 1299 /* 1300 * Initialize the BUSMODE register. 1301 * 1302 * XXX What about read-multiple/read-line/write-line on 1303 * XXX the 21140 and up? 1304 */ 1305 sc->sc_busmode = BUSMODE_BAR | BUSMODE_PBL_DEFAULT; 1306 switch (sc->sc_cacheline) { 1307 default: 1308 /* 1309 * Note: We must *always* set these bits; a cache 1310 * alignment of 0 is RESERVED. 1311 */ 1312 case 8: 1313 sc->sc_busmode |= BUSMODE_CAL_8LW; 1314 break; 1315 case 16: 1316 sc->sc_busmode |= BUSMODE_CAL_16LW; 1317 break; 1318 case 32: 1319 sc->sc_busmode |= BUSMODE_CAL_32LW; 1320 break; 1321 } 1322 switch (sc->sc_chip) { 1323 case TULIP_CHIP_82C168: 1324 case TULIP_CHIP_82C169: 1325 sc->sc_busmode |= BUSMODE_PNIC_MBO; 1326 break; 1327 default: 1328 /* Nothing. */ 1329 break; 1330 } 1331 #if BYTE_ORDER == BIG_ENDIAN 1332 /* 1333 * XXX There are reports that this doesn't work properly 1334 * in the old Tulip driver, but BUSMODE_DBO does. However, 1335 * BUSMODE_DBO is not available on the 21040, and requires 1336 * us to byte-swap the setup packet. What to do? 1337 */ 1338 sc->sc_busmode |= BUSMODE_BLE; 1339 #endif 1340 TULIP_WRITE(sc, CSR_BUSMODE, sc->sc_busmode); 1341 1342 /* 1343 * Initialize the OPMODE register. We don't write it until 1344 * we're ready to begin the transmit and receive processes. 1345 * 1346 * Media-related OPMODE bits are set in the media callbacks 1347 * for each specific chip/board. 1348 */ 1349 sc->sc_opmode = OPMODE_SR | OPMODE_ST | 1350 sc->sc_txth[sc->sc_txthresh].txth_opmode; 1351 switch (sc->sc_chip) { 1352 case TULIP_CHIP_21140: 1353 case TULIP_CHIP_21140A: 1354 case TULIP_CHIP_21142: 1355 case TULIP_CHIP_21143: 1356 sc->sc_opmode |= OPMODE_MBO; 1357 break; 1358 1359 default: 1360 /* Nothing. */ 1361 } 1362 1363 if (sc->sc_flags & TULIPF_HAS_MII) { 1364 switch (sc->sc_chip) { 1365 case TULIP_CHIP_82C168: 1366 case TULIP_CHIP_82C169: 1367 /* Enable the MII port. */ 1368 sc->sc_opmode |= OPMODE_PS; 1369 1370 TULIP_WRITE(sc, CSR_PNIC_ENDEC, PNIC_ENDEC_JDIS); 1371 break; 1372 1373 case TULIP_CHIP_WB89C840F: 1374 /* Nothing. */ 1375 break; 1376 1377 default: 1378 /* Enable the MII port. */ 1379 sc->sc_opmode |= OPMODE_PS; 1380 break; 1381 } 1382 } else { 1383 switch (sc->sc_chip) { 1384 case TULIP_CHIP_82C168: 1385 case TULIP_CHIP_82C169: 1386 sc->sc_opmode |= OPMODE_PNIC_TBEN; 1387 break; 1388 1389 default: 1390 /* Nothing. */ 1391 } 1392 } 1393 1394 /* 1395 * Magical mystery initialization on the Macronix chips. 1396 * The MX98713 uses its own magic value, the rest share 1397 * a common one. 1398 */ 1399 switch (sc->sc_chip) { 1400 case TULIP_CHIP_MX98713: 1401 TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98713); 1402 break; 1403 1404 case TULIP_CHIP_MX98713A: 1405 case TULIP_CHIP_MX98715: 1406 case TULIP_CHIP_MX98725: 1407 TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98715); 1408 break; 1409 1410 default: 1411 /* Nothing. */ 1412 } 1413 1414 /* 1415 * Initialize the transmit descriptor ring. 1416 */ 1417 memset(sc->sc_txdescs, 0, sizeof(sc->sc_txdescs)); 1418 for (i = 0; i < TULIP_NTXDESC; i++) { 1419 sc->sc_txdescs[i].td_ctl = TDCTL_CH; 1420 sc->sc_txdescs[i].td_bufaddr2 = 1421 TULIP_CDTXADDR(sc, TULIP_NEXTTX(i)); 1422 } 1423 TULIP_CDTXSYNC(sc, 0, TULIP_NTXDESC, 1424 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1425 sc->sc_txfree = TULIP_NTXDESC; 1426 sc->sc_txnext = 0; 1427 1428 /* 1429 * Initialize the transmit job descriptors. 1430 */ 1431 SIMPLEQ_INIT(&sc->sc_txfreeq); 1432 SIMPLEQ_INIT(&sc->sc_txdirtyq); 1433 for (i = 0; i < TULIP_TXQUEUELEN; i++) { 1434 txs = &sc->sc_txsoft[i]; 1435 txs->txs_mbuf = NULL; 1436 SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q); 1437 } 1438 1439 /* 1440 * Initialize the receive descriptor and receive job 1441 * descriptor rings. 1442 */ 1443 for (i = 0; i < TULIP_NRXDESC; i++) { 1444 rxs = &sc->sc_rxsoft[i]; 1445 if (rxs->rxs_mbuf == NULL) { 1446 if ((error = tlp_add_rxbuf(sc, i)) != 0) { 1447 printf("%s: unable to allocate or map rx " 1448 "buffer %d, error = %d\n", 1449 sc->sc_dev.dv_xname, i, error); 1450 /* 1451 * XXX Should attempt to run with fewer receive 1452 * XXX buffers instead of just failing. 1453 */ 1454 tlp_rxdrain(sc); 1455 goto out; 1456 } 1457 } 1458 } 1459 sc->sc_rxptr = 0; 1460 1461 /* 1462 * Initialize the interrupt mask and enable interrupts. 1463 */ 1464 /* normal interrupts */ 1465 sc->sc_inten = STATUS_TI | STATUS_TU | STATUS_RI | STATUS_NIS; 1466 1467 /* abnormal interrupts */ 1468 sc->sc_inten |= STATUS_TPS | STATUS_TJT | STATUS_UNF | 1469 STATUS_RU | STATUS_RPS | STATUS_RWT | STATUS_SE | STATUS_AIS; 1470 1471 sc->sc_rxint_mask = STATUS_RI|STATUS_RU|STATUS_RWT; 1472 sc->sc_txint_mask = STATUS_TI|STATUS_UNF|STATUS_TJT; 1473 1474 switch (sc->sc_chip) { 1475 case TULIP_CHIP_WB89C840F: 1476 /* 1477 * Clear bits that we don't want that happen to 1478 * overlap or don't exist. 1479 */ 1480 sc->sc_inten &= ~(STATUS_WINB_REI|STATUS_RWT); 1481 break; 1482 1483 default: 1484 /* Nothing. */ 1485 } 1486 1487 sc->sc_rxint_mask &= sc->sc_inten; 1488 sc->sc_txint_mask &= sc->sc_inten; 1489 1490 TULIP_WRITE(sc, CSR_INTEN, sc->sc_inten); 1491 TULIP_WRITE(sc, CSR_STATUS, 0xffffffff); 1492 1493 /* 1494 * Give the transmit and receive rings to the Tulip. 1495 */ 1496 TULIP_WRITE(sc, CSR_TXLIST, TULIP_CDTXADDR(sc, sc->sc_txnext)); 1497 TULIP_WRITE(sc, CSR_RXLIST, TULIP_CDRXADDR(sc, sc->sc_rxptr)); 1498 1499 /* 1500 * On chips that do this differently, set the station address. 1501 */ 1502 switch (sc->sc_chip) { 1503 case TULIP_CHIP_WB89C840F: 1504 { 1505 /* XXX Do this with stream writes? */ 1506 bus_addr_t cpa = TULIP_CSR_OFFSET(sc, CSR_WINB_CPA0); 1507 1508 for (i = 0; i < ETHER_ADDR_LEN; i++) { 1509 bus_space_write_1(sc->sc_st, sc->sc_sh, 1510 cpa + i, LLADDR(ifp->if_sadl)[i]); 1511 } 1512 break; 1513 } 1514 1515 default: 1516 /* Nothing. */ 1517 } 1518 1519 /* 1520 * Set the receive filter. This will start the transmit and 1521 * receive processes. 1522 */ 1523 (*sc->sc_filter_setup)(sc); 1524 1525 /* 1526 * Start the receive process. 1527 */ 1528 TULIP_WRITE(sc, CSR_RXPOLL, RXPOLL_RPD); 1529 1530 if (sc->sc_tick != NULL) { 1531 /* Start the one second clock. */ 1532 timeout(sc->sc_tick, sc, hz); 1533 } 1534 1535 /* 1536 * Note that the interface is now running. 1537 */ 1538 ifp->if_flags |= IFF_RUNNING; 1539 ifp->if_flags &= ~IFF_OACTIVE; 1540 1541 /* 1542 * Set the media. We must do this after the transmit process is 1543 * running, since we may actually have to transmit packets on 1544 * our board to test link integrity. 1545 */ 1546 (void) (*sc->sc_mediasw->tmsw_set)(sc); 1547 1548 out: 1549 if (error) 1550 printf("%s: interface not running\n", sc->sc_dev.dv_xname); 1551 return (error); 1552 } 1553 1554 /* 1555 * tlp_rxdrain: 1556 * 1557 * Drain the receive queue. 1558 */ 1559 void 1560 tlp_rxdrain(sc) 1561 struct tulip_softc *sc; 1562 { 1563 struct tulip_rxsoft *rxs; 1564 int i; 1565 1566 for (i = 0; i < TULIP_NRXDESC; i++) { 1567 rxs = &sc->sc_rxsoft[i]; 1568 if (rxs->rxs_mbuf != NULL) { 1569 bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap); 1570 m_freem(rxs->rxs_mbuf); 1571 rxs->rxs_mbuf = NULL; 1572 } 1573 } 1574 } 1575 1576 /* 1577 * tlp_stop: 1578 * 1579 * Stop transmission on the interface. 1580 */ 1581 void 1582 tlp_stop(sc, drain) 1583 struct tulip_softc *sc; 1584 int drain; 1585 { 1586 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1587 struct tulip_txsoft *txs; 1588 1589 if (sc->sc_tick != NULL) { 1590 /* Stop the one second clock. */ 1591 untimeout(sc->sc_tick, sc); 1592 } 1593 1594 /* Disable interrupts. */ 1595 TULIP_WRITE(sc, CSR_INTEN, 0); 1596 1597 /* Stop the transmit and receive processes. */ 1598 TULIP_WRITE(sc, CSR_OPMODE, 0); 1599 TULIP_WRITE(sc, CSR_RXLIST, 0); 1600 TULIP_WRITE(sc, CSR_TXLIST, 0); 1601 1602 /* 1603 * Release any queued transmit buffers. 1604 */ 1605 while ((txs = SIMPLEQ_FIRST(&sc->sc_txdirtyq)) != NULL) { 1606 SIMPLEQ_REMOVE_HEAD(&sc->sc_txdirtyq, txs, txs_q); 1607 if (txs->txs_mbuf != NULL) { 1608 bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap); 1609 m_freem(txs->txs_mbuf); 1610 txs->txs_mbuf = NULL; 1611 } 1612 SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q); 1613 } 1614 1615 if (drain) { 1616 /* 1617 * Release the receive buffers. 1618 */ 1619 tlp_rxdrain(sc); 1620 } 1621 1622 sc->sc_flags &= ~(TULIPF_WANT_SETUP|TULIPF_DOING_SETUP); 1623 1624 /* 1625 * Mark the interface down and cancel the watchdog timer. 1626 */ 1627 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1628 ifp->if_timer = 0; 1629 } 1630 1631 #define SROM_EMIT(sc, x) \ 1632 do { \ 1633 TULIP_WRITE((sc), CSR_MIIROM, (x)); \ 1634 delay(1); \ 1635 } while (0) 1636 1637 /* 1638 * tlp_srom_idle: 1639 * 1640 * Put the SROM in idle state. 1641 */ 1642 void 1643 tlp_srom_idle(sc) 1644 struct tulip_softc *sc; 1645 { 1646 u_int32_t miirom; 1647 int i; 1648 1649 miirom = MIIROM_SR; 1650 SROM_EMIT(sc, miirom); 1651 1652 miirom |= MIIROM_RD; 1653 SROM_EMIT(sc, miirom); 1654 1655 miirom |= MIIROM_SROMCS; 1656 SROM_EMIT(sc, miirom); 1657 1658 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1659 1660 /* Strobe the clock 25 times. */ 1661 for (i = 0; i < 25; i++) { 1662 SROM_EMIT(sc, miirom); 1663 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1664 } 1665 1666 SROM_EMIT(sc, miirom); 1667 1668 miirom &= ~MIIROM_SROMCS; 1669 SROM_EMIT(sc, miirom); 1670 1671 SROM_EMIT(sc, 0); 1672 } 1673 1674 /* 1675 * tlp_read_srom: 1676 * 1677 * Read the Tulip SROM. 1678 */ 1679 void 1680 tlp_read_srom(sc, word, wordcnt, data) 1681 struct tulip_softc *sc; 1682 int word, wordcnt; 1683 u_int16_t *data; 1684 { 1685 u_int32_t miirom; 1686 int i, x; 1687 1688 tlp_srom_idle(sc); 1689 1690 /* Select the SROM. */ 1691 miirom = MIIROM_SR; 1692 SROM_EMIT(sc, miirom); 1693 1694 miirom |= MIIROM_RD; 1695 SROM_EMIT(sc, miirom); 1696 1697 for (i = 0; i < wordcnt; i++) { 1698 /* Send CHIP SELECT for one clock tick. */ 1699 miirom |= MIIROM_SROMCS; 1700 SROM_EMIT(sc, miirom); 1701 1702 /* Shift in the READ opcode. */ 1703 for (x = 3; x > 0; x--) { 1704 if (TULIP_SROM_OPC_READ & (1 << (x - 1))) 1705 miirom |= MIIROM_SROMDI; 1706 else 1707 miirom &= ~MIIROM_SROMDI; 1708 SROM_EMIT(sc, miirom); 1709 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1710 SROM_EMIT(sc, miirom); 1711 } 1712 1713 /* Shift in address. */ 1714 for (x = 6; x > 0; x--) { 1715 if ((word + i) & (1 << (x - 1))) 1716 miirom |= MIIROM_SROMDI; 1717 else 1718 miirom &= ~MIIROM_SROMDI; 1719 SROM_EMIT(sc, miirom); 1720 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1721 SROM_EMIT(sc, miirom); 1722 } 1723 1724 /* Shift out data. */ 1725 miirom &= ~MIIROM_SROMDI; 1726 data[i] = 0; 1727 for (x = 16; x > 0; x--) { 1728 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1729 if (TULIP_ISSET(sc, CSR_MIIROM, MIIROM_SROMDO)) 1730 data[i] |= (1 << (x - 1)); 1731 SROM_EMIT(sc, miirom); 1732 } 1733 1734 /* Clear CHIP SELECT. */ 1735 miirom &= ~MIIROM_SROMCS; 1736 SROM_EMIT(sc, miirom); 1737 } 1738 1739 /* Deselect the SROM. */ 1740 SROM_EMIT(sc, 0); 1741 1742 /* ...and idle it. */ 1743 tlp_srom_idle(sc); 1744 } 1745 1746 #undef SROM_EMIT 1747 1748 /* 1749 * tlp_add_rxbuf: 1750 * 1751 * Add a receive buffer to the indicated descriptor. 1752 */ 1753 int 1754 tlp_add_rxbuf(sc, idx) 1755 struct tulip_softc *sc; 1756 int idx; 1757 { 1758 struct tulip_rxsoft *rxs = &sc->sc_rxsoft[idx]; 1759 struct mbuf *m; 1760 int error; 1761 1762 MGETHDR(m, M_DONTWAIT, MT_DATA); 1763 if (m == NULL) 1764 return (ENOBUFS); 1765 1766 MCLGET(m, M_DONTWAIT); 1767 if ((m->m_flags & M_EXT) == 0) { 1768 m_freem(m); 1769 return (ENOBUFS); 1770 } 1771 1772 if (rxs->rxs_mbuf != NULL) 1773 bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap); 1774 1775 rxs->rxs_mbuf = m; 1776 1777 error = bus_dmamap_load(sc->sc_dmat, rxs->rxs_dmamap, 1778 m->m_ext.ext_buf, m->m_ext.ext_size, NULL, BUS_DMA_NOWAIT); 1779 if (error) { 1780 printf("%s: can't load rx DMA map %d, error = %d\n", 1781 sc->sc_dev.dv_xname, idx, error); 1782 panic("tlp_add_rxbuf"); /* XXX */ 1783 } 1784 1785 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1786 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD); 1787 1788 TULIP_INIT_RXDESC(sc, idx); 1789 1790 return (0); 1791 } 1792 1793 /* 1794 * tlp_crc32: 1795 * 1796 * Compute the 32-bit CRC of the provided buffer. 1797 */ 1798 u_int32_t 1799 tlp_crc32(buf, len) 1800 const u_int8_t *buf; 1801 size_t len; 1802 { 1803 static const u_int32_t crctab[] = { 1804 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 1805 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, 1806 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 1807 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c 1808 }; 1809 u_int32_t crc; 1810 int i; 1811 1812 crc = 0xffffffff; 1813 for (i = 0; i < len; i++) { 1814 crc ^= buf[i]; 1815 crc = (crc >> 4) ^ crctab[crc & 0xf]; 1816 crc = (crc >> 4) ^ crctab[crc & 0xf]; 1817 } 1818 return (crc); 1819 } 1820 1821 /* 1822 * tlp_srom_crcok: 1823 * 1824 * Check the CRC of the Tulip SROM. 1825 */ 1826 int 1827 tlp_srom_crcok(romdata) 1828 u_int8_t *romdata; 1829 { 1830 u_int32_t crc; 1831 1832 crc = tlp_crc32(romdata, TULIP_ROM_CRC32_CHECKSUM); 1833 crc = (crc & 0xffff) ^ 0xffff; 1834 if (crc == TULIP_ROM_GETW(romdata, TULIP_ROM_CRC32_CHECKSUM)) 1835 return (1); 1836 return (0); 1837 } 1838 1839 /* 1840 * tlp_parse_old_srom: 1841 * 1842 * Parse old-format SROMs. 1843 * 1844 * This routine is largely lifted from Matt Thomas's `de' driver. 1845 */ 1846 int 1847 tlp_parse_old_srom(sc, enaddr) 1848 struct tulip_softc *sc; 1849 u_int8_t *enaddr; 1850 { 1851 static const u_int8_t testpat[] = 1852 { 0xff, 0, 0x55, 0xaa, 0xff, 0, 0x55, 0xaa }; 1853 int i; 1854 u_int32_t cksum; 1855 1856 if (memcmp(&sc->sc_srom[0], &sc->sc_srom[16], 8) != 0) { 1857 /* 1858 * Some vendors (e.g. ZNYX) don't use the standard 1859 * DEC Address ROM format, but rather just have an 1860 * Ethernet address in the first 6 bytes, maybe a 1861 * 2 byte checksum, and then all 0xff's. 1862 */ 1863 for (i = 8; i < 32; i++) { 1864 if (sc->sc_srom[i] != 0xff) 1865 return (0); 1866 } 1867 1868 /* 1869 * Sanity check the Ethernet address: 1870 * 1871 * - Make sure it's not multicast or locally 1872 * assigned 1873 * - Make sure it has a non-0 OUI 1874 */ 1875 if (sc->sc_srom[0] & 3) 1876 return (0); 1877 if (sc->sc_srom[0] == 0 && sc->sc_srom[1] == 0 && 1878 sc->sc_srom[2] == 0) 1879 return (0); 1880 1881 memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN); 1882 return (1); 1883 } 1884 1885 /* 1886 * Standard DEC Address ROM test. 1887 */ 1888 1889 if (memcmp(&sc->sc_srom[24], testpat, 8) != 0) 1890 return (0); 1891 1892 for (i = 0; i < 8; i++) { 1893 if (sc->sc_srom[i] != sc->sc_srom[15 - i]) 1894 return (0); 1895 } 1896 1897 memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN); 1898 1899 cksum = *(u_int16_t *) &enaddr[0]; 1900 1901 cksum <<= 1; 1902 if (cksum > 0xffff) 1903 cksum -= 0xffff; 1904 1905 cksum += *(u_int16_t *) &enaddr[2]; 1906 if (cksum > 0xffff) 1907 cksum -= 0xffff; 1908 1909 cksum <<= 1; 1910 if (cksum > 0xffff) 1911 cksum -= 0xffff; 1912 1913 cksum += *(u_int16_t *) &enaddr[4]; 1914 if (cksum >= 0xffff) 1915 cksum -= 0xffff; 1916 1917 if (cksum != *(u_int16_t *) &sc->sc_srom[6]) 1918 return (0); 1919 1920 return (1); 1921 } 1922 1923 /* 1924 * tlp_filter_setup: 1925 * 1926 * Set the Tulip's receive filter. 1927 */ 1928 void 1929 tlp_filter_setup(sc) 1930 struct tulip_softc *sc; 1931 { 1932 struct ethercom *ec = &sc->sc_ethercom; 1933 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1934 struct ether_multi *enm; 1935 struct ether_multistep step; 1936 __volatile u_int32_t *sp; 1937 u_int8_t enaddr[ETHER_ADDR_LEN]; 1938 u_int32_t hash; 1939 int cnt; 1940 1941 DPRINTF(sc, ("%s: tlp_filter_setup: sc_flags 0x%08x\n", 1942 sc->sc_dev.dv_xname, sc->sc_flags)); 1943 1944 memcpy(enaddr, LLADDR(ifp->if_sadl), ETHER_ADDR_LEN); 1945 1946 /* 1947 * If there are transmissions pending, wait until they have 1948 * completed. 1949 */ 1950 if (SIMPLEQ_FIRST(&sc->sc_txdirtyq) != NULL || 1951 (sc->sc_flags & TULIPF_DOING_SETUP) != 0) { 1952 sc->sc_flags |= TULIPF_WANT_SETUP; 1953 DPRINTF(sc, ("%s: tlp_filter_setup: deferring\n", 1954 sc->sc_dev.dv_xname)); 1955 return; 1956 } 1957 sc->sc_flags &= ~TULIPF_WANT_SETUP; 1958 1959 /* 1960 * If we're running, idle the transmit and receive engines. If 1961 * we're NOT running, we're being called from tlp_init(), and our 1962 * writing OPMODE will start the transmit and receive processes 1963 * in motion. 1964 */ 1965 if (ifp->if_flags & IFF_RUNNING) 1966 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 1967 1968 sc->sc_opmode &= ~(OPMODE_PR|OPMODE_PM); 1969 1970 if (ifp->if_flags & IFF_PROMISC) { 1971 sc->sc_opmode |= OPMODE_PR; 1972 goto allmulti; 1973 } 1974 1975 /* 1976 * Try Perfect filtering first. 1977 */ 1978 1979 sc->sc_filtmode = TDCTL_Tx_FT_PERFECT; 1980 sp = TULIP_CDSP(sc); 1981 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 1982 cnt = 0; 1983 ETHER_FIRST_MULTI(step, ec, enm); 1984 while (enm != NULL) { 1985 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 1986 /* 1987 * We must listen to a range of multicast addresses. 1988 * For now, just accept all multicasts, rather than 1989 * trying to set only those filter bits needed to match 1990 * the range. (At this time, the only use of address 1991 * ranges is for IP multicast routing, for which the 1992 * range is big enough to require all bits set.) 1993 */ 1994 goto allmulti; 1995 } 1996 if (cnt == (TULIP_MAXADDRS - 2)) { 1997 /* 1998 * We already have our multicast limit (still need 1999 * our station address and broadcast). Go to 2000 * Hash-Perfect mode. 2001 */ 2002 goto hashperfect; 2003 } 2004 *sp++ = ((u_int16_t *) enm->enm_addrlo)[0]; 2005 *sp++ = ((u_int16_t *) enm->enm_addrlo)[1]; 2006 *sp++ = ((u_int16_t *) enm->enm_addrlo)[2]; 2007 ETHER_NEXT_MULTI(step, enm); 2008 } 2009 2010 if (ifp->if_flags & IFF_BROADCAST) { 2011 /* ...and the broadcast address. */ 2012 cnt++; 2013 *sp++ = 0xffff; 2014 *sp++ = 0xffff; 2015 *sp++ = 0xffff; 2016 } 2017 2018 /* Pad the rest with our station address. */ 2019 for (; cnt < TULIP_MAXADDRS; cnt++) { 2020 *sp++ = ((u_int16_t *) enaddr)[0]; 2021 *sp++ = ((u_int16_t *) enaddr)[1]; 2022 *sp++ = ((u_int16_t *) enaddr)[2]; 2023 } 2024 ifp->if_flags &= ~IFF_ALLMULTI; 2025 goto setit; 2026 2027 hashperfect: 2028 /* 2029 * Try Hash-Perfect mode. 2030 */ 2031 2032 /* 2033 * Some 21140 chips have broken Hash-Perfect modes. On these 2034 * chips, we simply use Hash-Only mode, and put our station 2035 * address into the filter. 2036 */ 2037 if (sc->sc_chip == TULIP_CHIP_21140) 2038 sc->sc_filtmode = TDCTL_Tx_FT_HASHONLY; 2039 else 2040 sc->sc_filtmode = TDCTL_Tx_FT_HASH; 2041 sp = TULIP_CDSP(sc); 2042 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 2043 ETHER_FIRST_MULTI(step, ec, enm); 2044 while (enm != NULL) { 2045 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2046 /* 2047 * We must listen to a range of multicast addresses. 2048 * For now, just accept all multicasts, rather than 2049 * trying to set only those filter bits needed to match 2050 * the range. (At this time, the only use of address 2051 * ranges is for IP multicast routing, for which the 2052 * range is big enough to require all bits set.) 2053 */ 2054 goto allmulti; 2055 } 2056 hash = tlp_mchash(enm->enm_addrlo); 2057 sp[hash >> 4] |= 1 << (hash & 0xf); 2058 ETHER_NEXT_MULTI(step, enm); 2059 } 2060 2061 if (ifp->if_flags & IFF_BROADCAST) { 2062 /* ...and the broadcast address. */ 2063 hash = tlp_mchash(etherbroadcastaddr); 2064 sp[hash >> 4] |= 1 << (hash & 0xf); 2065 } 2066 2067 if (sc->sc_filtmode == TDCTL_Tx_FT_HASHONLY) { 2068 /* ...and our station address. */ 2069 hash = tlp_mchash(enaddr); 2070 sp[hash >> 4] |= 1 << (hash & 0xf); 2071 } else { 2072 /* 2073 * Hash-Perfect mode; put our station address after 2074 * the hash table. 2075 */ 2076 sp[39] = ((u_int16_t *) enaddr)[0]; 2077 sp[40] = ((u_int16_t *) enaddr)[1]; 2078 sp[41] = ((u_int16_t *) enaddr)[2]; 2079 } 2080 ifp->if_flags &= ~IFF_ALLMULTI; 2081 goto setit; 2082 2083 allmulti: 2084 /* 2085 * Use Perfect filter mode. First address is the broadcast address, 2086 * and pad the rest with our station address. We'll set Pass-all- 2087 * multicast in OPMODE below. 2088 */ 2089 sc->sc_filtmode = TDCTL_Tx_FT_PERFECT; 2090 sp = TULIP_CDSP(sc); 2091 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 2092 cnt = 0; 2093 if (ifp->if_flags & IFF_BROADCAST) { 2094 cnt++; 2095 *sp++ = 0xffff; 2096 *sp++ = 0xffff; 2097 *sp++ = 0xffff; 2098 } 2099 for (; cnt < TULIP_MAXADDRS; cnt++) { 2100 *sp++ = ((u_int16_t *) enaddr)[0]; 2101 *sp++ = ((u_int16_t *) enaddr)[1]; 2102 *sp++ = ((u_int16_t *) enaddr)[2]; 2103 } 2104 ifp->if_flags |= IFF_ALLMULTI; 2105 2106 setit: 2107 if (ifp->if_flags & IFF_ALLMULTI) 2108 sc->sc_opmode |= OPMODE_PM; 2109 2110 /* Sync the setup packet buffer. */ 2111 TULIP_CDSPSYNC(sc, BUS_DMASYNC_PREWRITE); 2112 2113 /* 2114 * Fill in the setup packet descriptor. 2115 */ 2116 sc->sc_setup_desc.td_bufaddr1 = TULIP_CDSPADDR(sc); 2117 sc->sc_setup_desc.td_bufaddr2 = TULIP_CDTXADDR(sc, sc->sc_txnext); 2118 sc->sc_setup_desc.td_ctl = 2119 (TULIP_SETUP_PACKET_LEN << TDCTL_SIZE1_SHIFT) | 2120 sc->sc_filtmode | TDCTL_Tx_SET | TDCTL_Tx_FS | TDCTL_Tx_LS | 2121 TDCTL_Tx_IC | TDCTL_CH; 2122 sc->sc_setup_desc.td_status = TDSTAT_OWN; 2123 TULIP_CDSDSYNC(sc, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2124 2125 /* 2126 * Write the address of the setup descriptor. This also has 2127 * the side effect of giving the transmit ring to the chip, 2128 * since the setup descriptor points to the next available 2129 * descriptor in the ring. 2130 */ 2131 TULIP_WRITE(sc, CSR_TXLIST, TULIP_CDSDADDR(sc)); 2132 2133 /* 2134 * Set the OPMODE register. This will also resume the 2135 * transmit transmit process we idled above. 2136 */ 2137 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2138 2139 sc->sc_flags |= TULIPF_DOING_SETUP; 2140 2141 /* 2142 * Kick the transmitter; this will cause the Tulip to 2143 * read the setup descriptor. 2144 */ 2145 /* XXX USE AUTOPOLLING? */ 2146 TULIP_WRITE(sc, CSR_TXPOLL, TXPOLL_TPD); 2147 2148 /* Set up a watchdog timer in case the chip flakes out. */ 2149 ifp->if_timer = 5; 2150 2151 DPRINTF(sc, ("%s: tlp_filter_setup: returning\n", sc->sc_dev.dv_xname)); 2152 } 2153 2154 /* 2155 * tlp_winb_filter_setup: 2156 * 2157 * Set the Winbond 89C840F's receive filter. 2158 */ 2159 void 2160 tlp_winb_filter_setup(sc) 2161 struct tulip_softc *sc; 2162 { 2163 struct ethercom *ec = &sc->sc_ethercom; 2164 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2165 struct ether_multi *enm; 2166 struct ether_multistep step; 2167 u_int32_t hash, mchash[2]; 2168 2169 DPRINTF(sc, ("%s: tlp_winb_filter_setup: sc_flags 0x%08x\n", 2170 sc->sc_dev.dv_xname, sc->sc_flags)); 2171 2172 sc->sc_opmode &= ~(OPMODE_WINB_APP|OPMODE_WINB_AMP|OPMODE_WINB_ABP); 2173 2174 if (ifp->if_flags & IFF_MULTICAST) 2175 sc->sc_opmode |= OPMODE_WINB_AMP; 2176 2177 if (ifp->if_flags & IFF_BROADCAST) 2178 sc->sc_opmode |= OPMODE_WINB_ABP; 2179 2180 if (ifp->if_flags & IFF_PROMISC) { 2181 sc->sc_opmode |= OPMODE_WINB_APP; 2182 goto allmulti; 2183 } 2184 2185 mchash[0] = mchash[1] = 0; 2186 2187 ETHER_FIRST_MULTI(step, ec, enm); 2188 while (enm != NULL) { 2189 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2190 /* 2191 * We must listen to a range of multicast addresses. 2192 * For now, just accept all multicasts, rather than 2193 * trying to set only those filter bits needed to match 2194 * the range. (At this time, the only use of address 2195 * ranges is for IP multicast routing, for which the 2196 * range is big enough to require all bits set.) 2197 */ 2198 goto allmulti; 2199 } 2200 2201 /* 2202 * According to the FreeBSD `wb' driver, yes, you 2203 * really do invert the hash. 2204 */ 2205 hash = (~(tlp_crc32(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26)) 2206 & 0x3f; 2207 mchash[hash >> 5] |= 1 << (hash & 0x1f); 2208 ETHER_NEXT_MULTI(step, enm); 2209 } 2210 ifp->if_flags &= ~IFF_ALLMULTI; 2211 goto setit; 2212 2213 allmulti: 2214 ifp->if_flags |= IFF_ALLMULTI; 2215 mchash[0] = mchash[1] = 0xffffffff; 2216 2217 setit: 2218 TULIP_WRITE(sc, CSR_WINB_CMA0, mchash[0]); 2219 TULIP_WRITE(sc, CSR_WINB_CMA1, mchash[1]); 2220 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2221 DPRINTF(sc, ("%s: tlp_winb_filter_setup: returning\n", 2222 sc->sc_dev.dv_xname)); 2223 } 2224 2225 /* 2226 * tlp_idle: 2227 * 2228 * Cause the transmit and/or receive processes to go idle. 2229 */ 2230 void 2231 tlp_idle(sc, bits) 2232 struct tulip_softc *sc; 2233 u_int32_t bits; 2234 { 2235 static const char *tx_state_names[] = { 2236 "STOPPED", 2237 "RUNNING - FETCH", 2238 "RUNNING - WAIT", 2239 "RUNNING - READING", 2240 "-- RESERVED --", 2241 "RUNNING - SETUP", 2242 "SUSPENDED", 2243 "RUNNING - CLOSE", 2244 }; 2245 static const char *rx_state_names[] = { 2246 "STOPPED", 2247 "RUNNING - FETCH", 2248 "RUNNING - CHECK", 2249 "RUNNING - WAIT", 2250 "SUSPENDED", 2251 "RUNNING - CLOSE", 2252 "RUNNING - FLUSH", 2253 "RUNNING - QUEUE", 2254 }; 2255 u_int32_t csr, ackmask = 0; 2256 int i; 2257 2258 if (bits & OPMODE_ST) 2259 ackmask |= STATUS_TPS; 2260 2261 if (bits & OPMODE_SR) 2262 ackmask |= STATUS_RPS; 2263 2264 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode & ~bits); 2265 2266 for (i = 0; i < 1000; i++) { 2267 if (TULIP_ISSET(sc, CSR_STATUS, ackmask) == ackmask) 2268 break; 2269 delay(10); 2270 } 2271 2272 csr = TULIP_READ(sc, CSR_STATUS); 2273 if ((csr & ackmask) != ackmask) { 2274 if ((bits & OPMODE_ST) != 0 && (csr & STATUS_TPS) == 0 && 2275 (csr & STATUS_TS) != STATUS_TS_STOPPED) 2276 printf("%s: transmit process failed to idle: " 2277 "state %s\n", sc->sc_dev.dv_xname, 2278 tx_state_names[(csr & STATUS_TS) >> 20]); 2279 if ((bits & OPMODE_SR) != 0 && (csr & STATUS_RPS) == 0 && 2280 (csr & STATUS_RS) != STATUS_RS_STOPPED) 2281 printf("%s: receive process failed to idle: " 2282 "state %s\n", sc->sc_dev.dv_xname, 2283 rx_state_names[(csr & STATUS_RS) >> 17]); 2284 } 2285 TULIP_WRITE(sc, CSR_STATUS, ackmask); 2286 } 2287 2288 /***************************************************************************** 2289 * Generic media support functions. 2290 *****************************************************************************/ 2291 2292 /* 2293 * tlp_mediastatus: [ifmedia interface function] 2294 * 2295 * Query the current media. 2296 */ 2297 void 2298 tlp_mediastatus(ifp, ifmr) 2299 struct ifnet *ifp; 2300 struct ifmediareq *ifmr; 2301 { 2302 struct tulip_softc *sc = ifp->if_softc; 2303 2304 (*sc->sc_mediasw->tmsw_get)(sc, ifmr); 2305 } 2306 2307 /* 2308 * tlp_mediachange: [ifmedia interface function] 2309 * 2310 * Update the current media. 2311 */ 2312 int 2313 tlp_mediachange(ifp) 2314 struct ifnet *ifp; 2315 { 2316 struct tulip_softc *sc = ifp->if_softc; 2317 2318 return ((*sc->sc_mediasw->tmsw_set)(sc)); 2319 } 2320 2321 /***************************************************************************** 2322 * Support functions for MII-attached media. 2323 *****************************************************************************/ 2324 2325 /* 2326 * tlp_mii_tick: 2327 * 2328 * One second timer, used to tick the MII. 2329 */ 2330 void 2331 tlp_mii_tick(arg) 2332 void *arg; 2333 { 2334 struct tulip_softc *sc = arg; 2335 int s; 2336 2337 s = splnet(); 2338 mii_tick(&sc->sc_mii); 2339 splx(s); 2340 2341 timeout(sc->sc_tick, sc, hz); 2342 } 2343 2344 /* 2345 * tlp_mii_statchg: [mii interface function] 2346 * 2347 * Callback from PHY when media changes. 2348 */ 2349 void 2350 tlp_mii_statchg(self) 2351 struct device *self; 2352 { 2353 struct tulip_softc *sc = (struct tulip_softc *)self; 2354 2355 /* Idle the transmit and receive processes. */ 2356 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2357 2358 /* 2359 * XXX What about Heartbeat Disable? Is it magically frobbed 2360 * XXX by the PHY? I hope so... 2361 */ 2362 2363 sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD); 2364 2365 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T) 2366 sc->sc_opmode |= OPMODE_TTM; 2367 2368 if (sc->sc_mii.mii_media_active & IFM_FDX) 2369 sc->sc_opmode |= OPMODE_FD; 2370 2371 /* 2372 * Write new OPMODE bits. This also restarts the transmit 2373 * and receive processes. 2374 */ 2375 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2376 2377 /* XXX Update ifp->if_baudrate */ 2378 } 2379 2380 /* 2381 * tlp_winb_mii_statchg: [mii interface function] 2382 * 2383 * Callback from PHY when media changes. This version is 2384 * for the Winbond 89C840F, which has different OPMODE bits. 2385 */ 2386 void 2387 tlp_winb_mii_statchg(self) 2388 struct device *self; 2389 { 2390 struct tulip_softc *sc = (struct tulip_softc *)self; 2391 2392 /* Idle the transmit and receive processes. */ 2393 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2394 2395 /* 2396 * XXX What about Heartbeat Disable? Is it magically frobbed 2397 * XXX by the PHY? I hope so... 2398 */ 2399 2400 sc->sc_opmode &= ~(OPMODE_WINB_FES|OPMODE_FD); 2401 2402 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_100_TX) 2403 sc->sc_opmode |= OPMODE_WINB_FES; 2404 2405 if (sc->sc_mii.mii_media_active & IFM_FDX) 2406 sc->sc_opmode |= OPMODE_FD; 2407 2408 /* 2409 * Write new OPMODE bits. This also restarts the transmit 2410 * and receive processes. 2411 */ 2412 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2413 2414 /* XXX Update ifp->if_baudrate */ 2415 } 2416 2417 /* 2418 * tlp_mii_getmedia: 2419 * 2420 * Callback from ifmedia to request current media status. 2421 */ 2422 void 2423 tlp_mii_getmedia(sc, ifmr) 2424 struct tulip_softc *sc; 2425 struct ifmediareq *ifmr; 2426 { 2427 2428 mii_pollstat(&sc->sc_mii); 2429 ifmr->ifm_status = sc->sc_mii.mii_media_status; 2430 ifmr->ifm_active = sc->sc_mii.mii_media_active; 2431 } 2432 2433 /* 2434 * tlp_mii_setmedia: 2435 * 2436 * Callback from ifmedia to request new media setting. 2437 */ 2438 int 2439 tlp_mii_setmedia(sc) 2440 struct tulip_softc *sc; 2441 { 2442 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2443 2444 if (ifp->if_flags & IFF_UP) 2445 mii_mediachg(&sc->sc_mii); 2446 return (0); 2447 } 2448 2449 #define MII_EMIT(sc, x) \ 2450 do { \ 2451 TULIP_WRITE((sc), CSR_MIIROM, (x)); \ 2452 delay(1); \ 2453 } while (0) 2454 2455 /* 2456 * tlp_sio_mii_sync: 2457 * 2458 * Synchronize the SIO-attached MII. 2459 */ 2460 void 2461 tlp_sio_mii_sync(sc) 2462 struct tulip_softc *sc; 2463 { 2464 u_int32_t miirom; 2465 int i; 2466 2467 miirom = MIIROM_MIIDIR|MIIROM_MDO; 2468 2469 MII_EMIT(sc, miirom); 2470 for (i = 0; i < 32; i++) { 2471 MII_EMIT(sc, miirom | MIIROM_MDC); 2472 MII_EMIT(sc, miirom); 2473 } 2474 } 2475 2476 /* 2477 * tlp_sio_mii_sendbits: 2478 * 2479 * Send a series of bits out the SIO to the MII. 2480 */ 2481 void 2482 tlp_sio_mii_sendbits(sc, data, nbits) 2483 struct tulip_softc *sc; 2484 u_int32_t data; 2485 int nbits; 2486 { 2487 u_int32_t miirom, i; 2488 2489 miirom = MIIROM_MIIDIR; 2490 MII_EMIT(sc, miirom); 2491 2492 for (i = 1 << (nbits - 1); i != 0; i >>= 1) { 2493 if (data & i) 2494 miirom |= MIIROM_MDO; 2495 else 2496 miirom &= ~MIIROM_MDO; 2497 MII_EMIT(sc, miirom); 2498 MII_EMIT(sc, miirom|MIIROM_MDC); 2499 MII_EMIT(sc, miirom); 2500 } 2501 } 2502 2503 /* 2504 * tlp_sio_mii_readreg: 2505 * 2506 * Read a PHY register via SIO-attached MII. 2507 */ 2508 int 2509 tlp_sio_mii_readreg(self, phy, reg) 2510 struct device *self; 2511 int phy, reg; 2512 { 2513 struct tulip_softc *sc = (void *) self; 2514 int val = 0, err = 0, i; 2515 2516 tlp_sio_mii_sync(sc); 2517 2518 tlp_sio_mii_sendbits(sc, MII_COMMAND_START, 2); 2519 tlp_sio_mii_sendbits(sc, MII_COMMAND_READ, 2); 2520 tlp_sio_mii_sendbits(sc, phy, 5); 2521 tlp_sio_mii_sendbits(sc, reg, 5); 2522 2523 MII_EMIT(sc, MIIROM_MIIDIR); 2524 MII_EMIT(sc, MIIROM_MIIDIR|MIIROM_MDC); 2525 2526 MII_EMIT(sc, 0); 2527 MII_EMIT(sc, MIIROM_MDC); 2528 2529 err = TULIP_ISSET(sc, CSR_MIIROM, MIIROM_MDI); 2530 2531 MII_EMIT(sc, 0); 2532 MII_EMIT(sc, MIIROM_MDC); 2533 2534 for (i = 0; i < 16; i++) { 2535 val <<= 1; 2536 MII_EMIT(sc, 0); 2537 if (err == 0 && TULIP_ISSET(sc, CSR_MIIROM, MIIROM_MDI)) 2538 val |= 1; 2539 MII_EMIT(sc, MIIROM_MDC); 2540 } 2541 2542 MII_EMIT(sc, 0); 2543 2544 return (err ? 0 : val); 2545 } 2546 2547 /* 2548 * tlp_sio_mii_writereg: 2549 * 2550 * Write a PHY register via SIO-attached MII. 2551 */ 2552 void 2553 tlp_sio_mii_writereg(self, phy, reg, val) 2554 struct device *self; 2555 int phy, reg, val; 2556 { 2557 struct tulip_softc *sc = (void *) self; 2558 2559 tlp_sio_mii_sync(sc); 2560 2561 tlp_sio_mii_sendbits(sc, MII_COMMAND_START, 2); 2562 tlp_sio_mii_sendbits(sc, MII_COMMAND_WRITE, 2); 2563 tlp_sio_mii_sendbits(sc, phy, 5); 2564 tlp_sio_mii_sendbits(sc, reg, 5); 2565 tlp_sio_mii_sendbits(sc, MII_COMMAND_ACK, 2); 2566 tlp_sio_mii_sendbits(sc, val, 16); 2567 2568 MII_EMIT(sc, 0); 2569 } 2570 2571 #undef MII_EMIT 2572 2573 /* 2574 * tlp_pnic_mii_readreg: 2575 * 2576 * Read a PHY register on the Lite-On PNIC. 2577 */ 2578 int 2579 tlp_pnic_mii_readreg(self, phy, reg) 2580 struct device *self; 2581 int phy, reg; 2582 { 2583 struct tulip_softc *sc = (void *) self; 2584 u_int32_t val; 2585 int i; 2586 2587 TULIP_WRITE(sc, CSR_PNIC_MII, 2588 PNIC_MII_MBO | PNIC_MII_RESERVED | 2589 PNIC_MII_READ | (phy << PNIC_MII_PHYSHIFT) | 2590 (reg << PNIC_MII_REGSHIFT)); 2591 2592 for (i = 0; i < 1000; i++) { 2593 delay(10); 2594 val = TULIP_READ(sc, CSR_PNIC_MII); 2595 if ((val & PNIC_MII_BUSY) == 0) { 2596 if ((val & PNIC_MII_DATA) == PNIC_MII_DATA) 2597 return (0); 2598 else 2599 return (val & PNIC_MII_DATA); 2600 } 2601 } 2602 printf("%s: MII read timed out\n", sc->sc_dev.dv_xname); 2603 return (0); 2604 } 2605 2606 /* 2607 * tlp_pnic_mii_writereg: 2608 * 2609 * Write a PHY register on the Lite-On PNIC. 2610 */ 2611 void 2612 tlp_pnic_mii_writereg(self, phy, reg, val) 2613 struct device *self; 2614 int phy, reg, val; 2615 { 2616 struct tulip_softc *sc = (void *) self; 2617 int i; 2618 2619 TULIP_WRITE(sc, CSR_PNIC_MII, 2620 PNIC_MII_MBO | PNIC_MII_RESERVED | 2621 PNIC_MII_WRITE | (phy << PNIC_MII_PHYSHIFT) | 2622 (reg << PNIC_MII_REGSHIFT) | val); 2623 2624 for (i = 0; i < 1000; i++) { 2625 delay(10); 2626 if (TULIP_ISSET(sc, CSR_PNIC_MII, PNIC_MII_BUSY) == 0) 2627 return; 2628 } 2629 printf("%s: MII write timed out\n", sc->sc_dev.dv_xname); 2630 } 2631 2632 /***************************************************************************** 2633 * Chip/board-specific media switches. The ones here are ones that 2634 * are potentially common to multiple front-ends. 2635 *****************************************************************************/ 2636 2637 /* 2638 * 21040 and 21041 media switches. 2639 */ 2640 void tlp_21040_tmsw_init __P((struct tulip_softc *)); 2641 void tlp_21040_tp_tmsw_init __P((struct tulip_softc *)); 2642 void tlp_21040_auibnc_tmsw_init __P((struct tulip_softc *)); 2643 void tlp_21040_21041_tmsw_get __P((struct tulip_softc *, 2644 struct ifmediareq *)); 2645 int tlp_21040_21041_tmsw_set __P((struct tulip_softc *)); 2646 2647 const struct tulip_mediasw tlp_21040_mediasw = { 2648 tlp_21040_tmsw_init, tlp_21040_21041_tmsw_get, tlp_21040_21041_tmsw_set 2649 }; 2650 2651 const struct tulip_mediasw tlp_21040_tp_mediasw = { 2652 tlp_21040_tp_tmsw_init, tlp_21040_21041_tmsw_get, 2653 tlp_21040_21041_tmsw_set 2654 }; 2655 2656 const struct tulip_mediasw tlp_21040_auibnc_mediasw = { 2657 tlp_21040_auibnc_tmsw_init, tlp_21040_21041_tmsw_get, 2658 tlp_21040_21041_tmsw_set 2659 }; 2660 2661 #define ADD(m, t) ifmedia_add(&sc->sc_mii.mii_media, (m), 0, (t)) 2662 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 2663 2664 void 2665 tlp_21040_tmsw_init(sc) 2666 struct tulip_softc *sc; 2667 { 2668 struct tulip_21040_21041_sia_media *tsm; 2669 const char *sep = ""; 2670 2671 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2672 tlp_mediastatus); 2673 2674 printf("%s: ", sc->sc_dev.dv_xname); 2675 2676 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2677 M_WAITOK); 2678 tsm->tsm_siaconn = SIACONN_21040_10BASET; 2679 tsm->tsm_siatxrx = SIATXRX_21040_10BASET; 2680 tsm->tsm_siagen = SIAGEN_21040_10BASET; 2681 ADD(IFM_ETHER|IFM_10_T, tsm); 2682 PRINT("10baseT"); 2683 2684 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2685 M_WAITOK); 2686 tsm->tsm_siaconn = SIACONN_21040_10BASET_FDX; 2687 tsm->tsm_siatxrx = SIATXRX_21040_10BASET_FDX; 2688 tsm->tsm_siagen = SIAGEN_21040_10BASET_FDX; 2689 ADD(IFM_ETHER|IFM_10_T|IFM_FDX, tsm); 2690 PRINT("10baseT-FDX"); 2691 2692 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2693 M_WAITOK); 2694 tsm->tsm_siaconn = SIACONN_21040_AUI; 2695 tsm->tsm_siatxrx = SIATXRX_21040_AUI; 2696 tsm->tsm_siagen = SIAGEN_21040_AUI; 2697 ADD(IFM_ETHER|IFM_10_5, tsm); 2698 PRINT("10base5"); 2699 2700 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2701 M_WAITOK); 2702 tsm->tsm_siaconn = SIACONN_21040_EXTSIA; 2703 tsm->tsm_siatxrx = SIATXRX_21040_EXTSIA; 2704 tsm->tsm_siagen = SIAGEN_21040_EXTSIA; 2705 ADD(IFM_ETHER|IFM_MANUAL, tsm); 2706 PRINT("manual"); 2707 2708 /* 2709 * XXX Autosense not yet supported. 2710 */ 2711 2712 /* XXX This should be auto-sense. */ 2713 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T); 2714 printf(", default 10baseT"); 2715 2716 printf("\n"); 2717 } 2718 2719 void 2720 tlp_21040_tp_tmsw_init(sc) 2721 struct tulip_softc *sc; 2722 { 2723 struct tulip_21040_21041_sia_media *tsm; 2724 const char *sep = ""; 2725 2726 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2727 tlp_mediastatus); 2728 2729 printf("%s: ", sc->sc_dev.dv_xname); 2730 2731 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2732 M_WAITOK); 2733 tsm->tsm_siaconn = SIACONN_21040_10BASET; 2734 tsm->tsm_siatxrx = SIATXRX_21040_10BASET; 2735 tsm->tsm_siagen = SIAGEN_21040_10BASET; 2736 ADD(IFM_ETHER|IFM_10_T, tsm); 2737 PRINT("10baseT"); 2738 2739 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2740 M_WAITOK); 2741 tsm->tsm_siaconn = SIACONN_21040_10BASET_FDX; 2742 tsm->tsm_siatxrx = SIATXRX_21040_10BASET_FDX; 2743 tsm->tsm_siagen = SIAGEN_21040_10BASET_FDX; 2744 ADD(IFM_ETHER|IFM_10_T|IFM_FDX, tsm); 2745 PRINT("10baseT-FDX"); 2746 2747 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T); 2748 printf(", default 10baseT"); 2749 2750 printf("\n"); 2751 } 2752 2753 void 2754 tlp_21040_auibnc_tmsw_init(sc) 2755 struct tulip_softc *sc; 2756 { 2757 struct tulip_21040_21041_sia_media *tsm; 2758 const char *sep = ""; 2759 2760 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2761 tlp_mediastatus); 2762 2763 printf("%s: ", sc->sc_dev.dv_xname); 2764 2765 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2766 M_WAITOK); 2767 tsm->tsm_siaconn = SIACONN_21040_AUI; 2768 tsm->tsm_siatxrx = SIATXRX_21040_AUI; 2769 tsm->tsm_siagen = SIAGEN_21040_AUI; 2770 ADD(IFM_ETHER|IFM_10_5, tsm); 2771 PRINT("10base5"); 2772 2773 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_5); 2774 2775 printf("\n"); 2776 } 2777 2778 #undef ADD 2779 #undef PRINT 2780 2781 void 2782 tlp_21040_21041_tmsw_get(sc, ifmr) 2783 struct tulip_softc *sc; 2784 struct ifmediareq *ifmr; 2785 { 2786 struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur; 2787 2788 ifmr->ifm_status = 0; 2789 2790 switch (IFM_SUBTYPE(ife->ifm_media)) { 2791 case IFM_AUTO: 2792 /* 2793 * XXX Implement autosensing case. 2794 */ 2795 break; 2796 2797 case IFM_10_T: 2798 /* 2799 * We're able to detect link directly on twisted pair. 2800 */ 2801 ifmr->ifm_status = IFM_AVALID; 2802 if (TULIP_ISSET(sc, CSR_SIASTAT, SIASTAT_LKF) == 0) 2803 ifmr->ifm_status |= IFM_ACTIVE; 2804 /* FALLTHROUGH */ 2805 default: 2806 /* 2807 * If not autosensing, active media is the currently 2808 * selected media. 2809 */ 2810 ifmr->ifm_active = ife->ifm_media; 2811 } 2812 } 2813 2814 int 2815 tlp_21040_21041_tmsw_set(sc) 2816 struct tulip_softc *sc; 2817 { 2818 struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur; 2819 struct tulip_21040_21041_sia_media *tsm; 2820 2821 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 2822 /* 2823 * If not autosensing, just pull the SIA settings out 2824 * of the media entry. 2825 */ 2826 tsm = ife->ifm_aux; 2827 TULIP_WRITE(sc, CSR_SIACONN, SIACONN_SRL); 2828 TULIP_WRITE(sc, CSR_SIATXRX, tsm->tsm_siatxrx); 2829 TULIP_WRITE(sc, CSR_SIAGEN, tsm->tsm_siagen); 2830 TULIP_WRITE(sc, CSR_SIACONN, tsm->tsm_siaconn); 2831 2832 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2833 sc->sc_opmode &= ~OPMODE_FD; 2834 if (ife->ifm_media & IFM_FDX) 2835 sc->sc_opmode |= OPMODE_FD; 2836 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2837 } else { 2838 /* 2839 * XXX Implement autosensing case. 2840 */ 2841 } 2842 2843 return (0); 2844 } 2845 2846 /* 2847 * MII-on-SIO media switch. Handles only MII attached to the SIO. 2848 */ 2849 void tlp_sio_mii_tmsw_init __P((struct tulip_softc *)); 2850 2851 const struct tulip_mediasw tlp_sio_mii_mediasw = { 2852 tlp_sio_mii_tmsw_init, tlp_mii_getmedia, tlp_mii_setmedia 2853 }; 2854 2855 void 2856 tlp_sio_mii_tmsw_init(sc) 2857 struct tulip_softc *sc; 2858 { 2859 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2860 2861 sc->sc_mii.mii_ifp = ifp; 2862 sc->sc_mii.mii_readreg = tlp_sio_mii_readreg; 2863 sc->sc_mii.mii_writereg = tlp_sio_mii_writereg; 2864 sc->sc_mii.mii_statchg = sc->sc_statchg; 2865 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2866 tlp_mediastatus); 2867 mii_phy_probe(&sc->sc_dev, &sc->sc_mii, 0xffffffff); 2868 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 2869 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); 2870 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE); 2871 } else { 2872 sc->sc_flags |= TULIPF_HAS_MII; 2873 sc->sc_tick = tlp_mii_tick; 2874 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2875 } 2876 } 2877 2878 /* 2879 * Lite-On PNIC media switch. Must handle MII or internal NWAY. 2880 */ 2881 void tlp_pnic_tmsw_init __P((struct tulip_softc *)); 2882 void tlp_pnic_tmsw_get __P((struct tulip_softc *, struct ifmediareq *)); 2883 int tlp_pnic_tmsw_set __P((struct tulip_softc *)); 2884 2885 const struct tulip_mediasw tlp_pnic_mediasw = { 2886 tlp_pnic_tmsw_init, tlp_pnic_tmsw_get, tlp_pnic_tmsw_set 2887 }; 2888 2889 void tlp_pnic_nway_statchg __P((struct device *)); 2890 void tlp_pnic_nway_tick __P((void *)); 2891 int tlp_pnic_nway_service __P((struct tulip_softc *, int)); 2892 void tlp_pnic_nway_reset __P((struct tulip_softc *)); 2893 int tlp_pnic_nway_auto __P((struct tulip_softc *, int)); 2894 void tlp_pnic_nway_auto_timeout __P((void *)); 2895 void tlp_pnic_nway_status __P((struct tulip_softc *)); 2896 void tlp_pnic_nway_acomp __P((struct tulip_softc *)); 2897 2898 void 2899 tlp_pnic_tmsw_init(sc) 2900 struct tulip_softc *sc; 2901 { 2902 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2903 const char *sep = ""; 2904 2905 #define ADD(m, c) ifmedia_add(&sc->sc_mii.mii_media, (m), (c), NULL) 2906 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 2907 2908 sc->sc_mii.mii_ifp = ifp; 2909 sc->sc_mii.mii_readreg = tlp_pnic_mii_readreg; 2910 sc->sc_mii.mii_writereg = tlp_pnic_mii_writereg; 2911 sc->sc_mii.mii_statchg = sc->sc_statchg; 2912 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2913 tlp_mediastatus); 2914 mii_phy_probe(&sc->sc_dev, &sc->sc_mii, 0xffffffff); 2915 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 2916 /* XXX What about AUI/BNC support? */ 2917 printf("%s: ", sc->sc_dev.dv_xname); 2918 2919 tlp_pnic_nway_reset(sc); 2920 2921 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0), 2922 PNIC_NWAY_TW|PNIC_NWAY_CAP10T); 2923 PRINT("10baseT"); 2924 2925 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, 0), 2926 PNIC_NWAY_TW|PNIC_NWAY_FD|PNIC_NWAY_CAP10TFDX); 2927 PRINT("10baseT-FDX"); 2928 2929 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, 0), 2930 PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_CAP100TX); 2931 PRINT("100baseTX"); 2932 2933 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, 0), 2934 PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_FD| 2935 PNIC_NWAY_CAP100TXFDX); 2936 PRINT("100baseTX-FDX"); 2937 2938 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0), 2939 PNIC_NWAY_TW|PNIC_NWAY_RN|PNIC_NWAY_NW| 2940 PNIC_NWAY_CAP10T|PNIC_NWAY_CAP10TFDX| 2941 PNIC_NWAY_CAP100TXFDX|PNIC_NWAY_CAP100TX); 2942 PRINT("auto"); 2943 2944 printf("\n"); 2945 2946 sc->sc_statchg = tlp_pnic_nway_statchg; 2947 sc->sc_tick = tlp_pnic_nway_tick; 2948 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2949 } else { 2950 sc->sc_flags |= TULIPF_HAS_MII; 2951 sc->sc_tick = tlp_mii_tick; 2952 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2953 } 2954 2955 #undef ADD 2956 #undef PRINT 2957 } 2958 2959 void 2960 tlp_pnic_tmsw_get(sc, ifmr) 2961 struct tulip_softc *sc; 2962 struct ifmediareq *ifmr; 2963 { 2964 struct mii_data *mii = &sc->sc_mii; 2965 2966 if (sc->sc_flags & TULIPF_HAS_MII) 2967 tlp_mii_getmedia(sc, ifmr); 2968 else { 2969 mii->mii_media_status = 0; 2970 mii->mii_media_active = IFM_NONE; 2971 tlp_pnic_nway_service(sc, MII_POLLSTAT); 2972 ifmr->ifm_status = sc->sc_mii.mii_media_status; 2973 ifmr->ifm_active = sc->sc_mii.mii_media_active; 2974 } 2975 } 2976 2977 int 2978 tlp_pnic_tmsw_set(sc) 2979 struct tulip_softc *sc; 2980 { 2981 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2982 struct mii_data *mii = &sc->sc_mii; 2983 2984 if (sc->sc_flags & TULIPF_HAS_MII) 2985 return (tlp_mii_setmedia(sc)); 2986 2987 if (ifp->if_flags & IFF_UP) { 2988 mii->mii_media_status = 0; 2989 mii->mii_media_active = IFM_NONE; 2990 return (tlp_pnic_nway_service(sc, MII_MEDIACHG)); 2991 } 2992 2993 return (0); 2994 } 2995 2996 void 2997 tlp_pnic_nway_statchg(self) 2998 struct device *self; 2999 { 3000 struct tulip_softc *sc = (struct tulip_softc *)self; 3001 3002 /* Idle the transmit and receive processes. */ 3003 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 3004 3005 /* 3006 * XXX What about Heartbeat Disable? Is it magically frobbed 3007 * XXX by the PHY? I hope so... 3008 */ 3009 3010 sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD|OPMODE_PS|OPMODE_PCS| 3011 OPMODE_SCR); 3012 3013 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T) { 3014 sc->sc_opmode |= OPMODE_TTM; 3015 TULIP_WRITE(sc, CSR_GPP, 3016 GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 0) | 3017 GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1)); 3018 } else { 3019 sc->sc_opmode |= OPMODE_PS|OPMODE_PCS|OPMODE_SCR; 3020 TULIP_WRITE(sc, CSR_GPP, 3021 GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 1) | 3022 GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1)); 3023 } 3024 3025 if (sc->sc_mii.mii_media_active & IFM_FDX) 3026 sc->sc_opmode |= OPMODE_FD; 3027 3028 /* 3029 * Write new OPMODE bits. This also restarts the transmit 3030 * and receive processes. 3031 */ 3032 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 3033 3034 /* XXX Update ifp->if_baudrate */ 3035 } 3036 3037 void 3038 tlp_pnic_nway_tick(arg) 3039 void *arg; 3040 { 3041 struct tulip_softc *sc = arg; 3042 int s; 3043 3044 s = splnet(); 3045 tlp_pnic_nway_service(sc, MII_TICK); 3046 splx(s); 3047 3048 timeout(tlp_pnic_nway_tick, sc, hz); 3049 } 3050 3051 /* 3052 * Support for the Lite-On PNIC internal NWay block. This is constructed 3053 * somewhat like a PHY driver for simplicity. 3054 */ 3055 3056 int 3057 tlp_pnic_nway_service(sc, cmd) 3058 struct tulip_softc *sc; 3059 int cmd; 3060 { 3061 struct mii_data *mii = &sc->sc_mii; 3062 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 3063 3064 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 3065 return (0); 3066 3067 switch (cmd) { 3068 case MII_POLLSTAT: 3069 /* Nothing special to do here. */ 3070 break; 3071 3072 case MII_MEDIACHG: 3073 switch (IFM_SUBTYPE(ife->ifm_media)) { 3074 case IFM_AUTO: 3075 (void) tlp_pnic_nway_auto(sc, 1); 3076 break; 3077 case IFM_100_T4: 3078 /* 3079 * XXX Not supported as a manual setting right now. 3080 */ 3081 return (EINVAL); 3082 default: 3083 /* 3084 * NWAY register data is stored in the ifmedia entry. 3085 */ 3086 TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data); 3087 } 3088 break; 3089 3090 case MII_TICK: 3091 /* 3092 * Only used for autonegotiation. 3093 */ 3094 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 3095 return (0); 3096 3097 /* 3098 * Check to see if we have link. If we do, we don't 3099 * need to restart the autonegotiation process. 3100 */ 3101 if (sc->sc_flags & TULIPF_LINK_UP) 3102 return (0); 3103 3104 /* 3105 * Only retry autonegotiation every 5 seconds. 3106 */ 3107 if (++sc->sc_nway_ticks != 5) 3108 return (0); 3109 3110 sc->sc_nway_ticks = 0; 3111 tlp_pnic_nway_reset(sc); 3112 if (tlp_pnic_nway_auto(sc, 0) == EJUSTRETURN) 3113 return (0); 3114 break; 3115 } 3116 3117 /* Update the media status. */ 3118 tlp_pnic_nway_status(sc); 3119 3120 /* Callback if something changed. */ 3121 if (sc->sc_nway_active != mii->mii_media_active || 3122 cmd == MII_MEDIACHG) { 3123 (*sc->sc_statchg)(&sc->sc_dev); 3124 sc->sc_nway_active = mii->mii_media_active; 3125 } 3126 return (0); 3127 } 3128 3129 void 3130 tlp_pnic_nway_reset(sc) 3131 struct tulip_softc *sc; 3132 { 3133 3134 TULIP_WRITE(sc, CSR_PNIC_NWAY, PNIC_NWAY_RS); 3135 delay(100); 3136 TULIP_WRITE(sc, CSR_PNIC_NWAY, 0); 3137 } 3138 3139 int 3140 tlp_pnic_nway_auto(sc, waitfor) 3141 struct tulip_softc *sc; 3142 int waitfor; 3143 { 3144 struct mii_data *mii = &sc->sc_mii; 3145 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 3146 u_int32_t reg; 3147 int i; 3148 3149 if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0) 3150 TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data); 3151 3152 if (waitfor) { 3153 /* Wait 500ms for it to complete. */ 3154 for (i = 0; i < 500; i++) { 3155 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3156 if (reg & PNIC_NWAY_LPAR_MASK) { 3157 tlp_pnic_nway_acomp(sc); 3158 return (0); 3159 } 3160 delay(1000); 3161 } 3162 #if 0 3163 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) 3164 printf("%s: autonegotiation failed to complete\n", 3165 sc->sc_dev.dv_xname); 3166 #endif 3167 3168 /* 3169 * Don't need to worry about clearing DOINGAUTO. 3170 * If that's set, a timeout is pending, and it will 3171 * clear the flag. 3172 */ 3173 return (EIO); 3174 } 3175 3176 /* 3177 * Just let it finish asynchronously. This is for the benefit of 3178 * the tick handler driving autonegotiation. Don't want 500ms 3179 * delays all the time while the system is running! 3180 */ 3181 if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0) { 3182 sc->sc_flags |= TULIPF_DOINGAUTO; 3183 timeout(tlp_pnic_nway_auto_timeout, sc, hz >> 1); 3184 } 3185 return (EJUSTRETURN); 3186 } 3187 3188 void 3189 tlp_pnic_nway_auto_timeout(arg) 3190 void *arg; 3191 { 3192 struct tulip_softc *sc = arg; 3193 u_int32_t reg; 3194 int s; 3195 3196 s = splnet(); 3197 sc->sc_flags &= ~TULIPF_DOINGAUTO; 3198 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3199 #if 0 3200 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) 3201 printf("%s: autonegotiation failed to complete\n", 3202 sc->sc_dev.dv_xname); 3203 #endif 3204 3205 tlp_pnic_nway_acomp(sc); 3206 3207 /* Update the media status. */ 3208 (void) tlp_pnic_nway_service(sc, MII_POLLSTAT); 3209 splx(s); 3210 } 3211 3212 void 3213 tlp_pnic_nway_status(sc) 3214 struct tulip_softc *sc; 3215 { 3216 struct mii_data *mii = &sc->sc_mii; 3217 u_int32_t reg; 3218 3219 mii->mii_media_status = IFM_AVALID; 3220 mii->mii_media_active = IFM_ETHER; 3221 3222 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3223 3224 if (sc->sc_flags & TULIPF_LINK_UP) 3225 mii->mii_media_status |= IFM_ACTIVE; 3226 3227 if (reg & PNIC_NWAY_NW) { 3228 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) { 3229 /* Erg, still trying, I guess... */ 3230 mii->mii_media_active |= IFM_NONE; 3231 return; 3232 } 3233 3234 #if 0 3235 if (reg & PNIC_NWAY_LPAR100T4) 3236 mii->mii_media_active |= IFM_100_T4; 3237 else 3238 #endif 3239 if (reg & PNIC_NWAY_LPAR100TXFDX) 3240 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 3241 else if (reg & PNIC_NWAY_LPAR100TX) 3242 mii->mii_media_active |= IFM_100_TX; 3243 else if (reg & PNIC_NWAY_LPAR10TFDX) 3244 mii->mii_media_active |= IFM_10_T|IFM_FDX; 3245 else if (reg & PNIC_NWAY_LPAR10T) 3246 mii->mii_media_active |= IFM_10_T; 3247 else 3248 mii->mii_media_active |= IFM_NONE; 3249 } else { 3250 if (reg & PNIC_NWAY_100) 3251 mii->mii_media_active |= IFM_100_TX; 3252 else 3253 mii->mii_media_active |= IFM_10_T; 3254 if (reg & PNIC_NWAY_FD) 3255 mii->mii_media_active |= IFM_FDX; 3256 } 3257 } 3258 3259 void 3260 tlp_pnic_nway_acomp(sc) 3261 struct tulip_softc *sc; 3262 { 3263 u_int32_t reg; 3264 3265 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3266 reg &= ~(PNIC_NWAY_FD|PNIC_NWAY_100|PNIC_NWAY_RN); 3267 3268 if (reg & (PNIC_NWAY_LPAR100TXFDX|PNIC_NWAY_LPAR100TX)) 3269 reg |= PNIC_NWAY_100; 3270 if (reg & (PNIC_NWAY_LPAR10TFDX|PNIC_NWAY_LPAR100TXFDX)) 3271 reg |= PNIC_NWAY_FD; 3272 3273 TULIP_WRITE(sc, CSR_PNIC_NWAY, reg); 3274 } 3275
Indexes created Tue Sep 23 14:10:03 GMT 2025