tulip.c revision 1.12
1 /* $NetBSD: tulip.c,v 1.12 1999/09/19 20:51:09 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 /* 1265 * Wait at least 50 PCI cycles for the reset to 1266 * complete before peeking at the Tulip again. 1267 * 10 uSec is a bit longer than 50 PCI cycles 1268 * (at 33MHz), but it doesn't hurt have the extra 1269 * wait. 1270 */ 1271 delay(10); 1272 if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR) == 0) 1273 break; 1274 } 1275 1276 if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR)) 1277 printf("%s: reset failed to complete\n", sc->sc_dev.dv_xname); 1278 1279 delay(1000); 1280 } 1281 1282 /* 1283 * tlp_init: 1284 * 1285 * Initialize the interface. Must be called at splnet(). 1286 */ 1287 int 1288 tlp_init(sc) 1289 struct tulip_softc *sc; 1290 { 1291 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1292 struct tulip_txsoft *txs; 1293 struct tulip_rxsoft *rxs; 1294 int i, error = 0; 1295 1296 /* 1297 * Cancel any pending I/O. 1298 */ 1299 tlp_stop(sc, 0); 1300 1301 /* 1302 * Reset the Tulip to a known state. 1303 */ 1304 tlp_reset(sc); 1305 1306 /* 1307 * Initialize the BUSMODE register. 1308 * 1309 * XXX What about read-multiple/read-line/write-line on 1310 * XXX the 21140 and up? 1311 */ 1312 sc->sc_busmode = BUSMODE_BAR | BUSMODE_PBL_DEFAULT; 1313 switch (sc->sc_cacheline) { 1314 default: 1315 /* 1316 * Note: We must *always* set these bits; a cache 1317 * alignment of 0 is RESERVED. 1318 */ 1319 case 8: 1320 sc->sc_busmode |= BUSMODE_CAL_8LW; 1321 break; 1322 case 16: 1323 sc->sc_busmode |= BUSMODE_CAL_16LW; 1324 break; 1325 case 32: 1326 sc->sc_busmode |= BUSMODE_CAL_32LW; 1327 break; 1328 } 1329 switch (sc->sc_chip) { 1330 case TULIP_CHIP_82C168: 1331 case TULIP_CHIP_82C169: 1332 sc->sc_busmode |= BUSMODE_PNIC_MBO; 1333 break; 1334 default: 1335 /* Nothing. */ 1336 break; 1337 } 1338 #if BYTE_ORDER == BIG_ENDIAN 1339 /* 1340 * XXX There are reports that this doesn't work properly 1341 * in the old Tulip driver, but BUSMODE_DBO does. However, 1342 * BUSMODE_DBO is not available on the 21040, and requires 1343 * us to byte-swap the setup packet. What to do? 1344 */ 1345 sc->sc_busmode |= BUSMODE_BLE; 1346 #endif 1347 TULIP_WRITE(sc, CSR_BUSMODE, sc->sc_busmode); 1348 1349 /* 1350 * Initialize the OPMODE register. We don't write it until 1351 * we're ready to begin the transmit and receive processes. 1352 * 1353 * Media-related OPMODE bits are set in the media callbacks 1354 * for each specific chip/board. 1355 */ 1356 sc->sc_opmode = OPMODE_SR | OPMODE_ST | 1357 sc->sc_txth[sc->sc_txthresh].txth_opmode; 1358 switch (sc->sc_chip) { 1359 case TULIP_CHIP_21140: 1360 case TULIP_CHIP_21140A: 1361 case TULIP_CHIP_21142: 1362 case TULIP_CHIP_21143: 1363 sc->sc_opmode |= OPMODE_MBO; 1364 break; 1365 1366 default: 1367 /* Nothing. */ 1368 } 1369 1370 if (sc->sc_flags & TULIPF_HAS_MII) { 1371 switch (sc->sc_chip) { 1372 case TULIP_CHIP_82C168: 1373 case TULIP_CHIP_82C169: 1374 /* Enable the MII port. */ 1375 sc->sc_opmode |= OPMODE_PS; 1376 1377 TULIP_WRITE(sc, CSR_PNIC_ENDEC, PNIC_ENDEC_JDIS); 1378 break; 1379 1380 case TULIP_CHIP_WB89C840F: 1381 /* Nothing. */ 1382 break; 1383 1384 default: 1385 /* Enable the MII port. */ 1386 sc->sc_opmode |= OPMODE_PS; 1387 break; 1388 } 1389 } else { 1390 switch (sc->sc_chip) { 1391 case TULIP_CHIP_82C168: 1392 case TULIP_CHIP_82C169: 1393 sc->sc_opmode |= OPMODE_PNIC_TBEN; 1394 break; 1395 1396 default: 1397 /* Nothing. */ 1398 } 1399 } 1400 1401 /* 1402 * Magical mystery initialization on the Macronix chips. 1403 * The MX98713 uses its own magic value, the rest share 1404 * a common one. 1405 */ 1406 switch (sc->sc_chip) { 1407 case TULIP_CHIP_MX98713: 1408 TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98713); 1409 break; 1410 1411 case TULIP_CHIP_MX98713A: 1412 case TULIP_CHIP_MX98715: 1413 case TULIP_CHIP_MX98725: 1414 TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98715); 1415 break; 1416 1417 default: 1418 /* Nothing. */ 1419 } 1420 1421 /* 1422 * Initialize the transmit descriptor ring. 1423 */ 1424 memset(sc->sc_txdescs, 0, sizeof(sc->sc_txdescs)); 1425 for (i = 0; i < TULIP_NTXDESC; i++) { 1426 sc->sc_txdescs[i].td_ctl = TDCTL_CH; 1427 sc->sc_txdescs[i].td_bufaddr2 = 1428 TULIP_CDTXADDR(sc, TULIP_NEXTTX(i)); 1429 } 1430 TULIP_CDTXSYNC(sc, 0, TULIP_NTXDESC, 1431 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1432 sc->sc_txfree = TULIP_NTXDESC; 1433 sc->sc_txnext = 0; 1434 1435 /* 1436 * Initialize the transmit job descriptors. 1437 */ 1438 SIMPLEQ_INIT(&sc->sc_txfreeq); 1439 SIMPLEQ_INIT(&sc->sc_txdirtyq); 1440 for (i = 0; i < TULIP_TXQUEUELEN; i++) { 1441 txs = &sc->sc_txsoft[i]; 1442 txs->txs_mbuf = NULL; 1443 SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q); 1444 } 1445 1446 /* 1447 * Initialize the receive descriptor and receive job 1448 * descriptor rings. 1449 */ 1450 for (i = 0; i < TULIP_NRXDESC; i++) { 1451 rxs = &sc->sc_rxsoft[i]; 1452 if (rxs->rxs_mbuf == NULL) { 1453 if ((error = tlp_add_rxbuf(sc, i)) != 0) { 1454 printf("%s: unable to allocate or map rx " 1455 "buffer %d, error = %d\n", 1456 sc->sc_dev.dv_xname, i, error); 1457 /* 1458 * XXX Should attempt to run with fewer receive 1459 * XXX buffers instead of just failing. 1460 */ 1461 tlp_rxdrain(sc); 1462 goto out; 1463 } 1464 } 1465 } 1466 sc->sc_rxptr = 0; 1467 1468 /* 1469 * Initialize the interrupt mask and enable interrupts. 1470 */ 1471 /* normal interrupts */ 1472 sc->sc_inten = STATUS_TI | STATUS_TU | STATUS_RI | STATUS_NIS; 1473 1474 /* abnormal interrupts */ 1475 sc->sc_inten |= STATUS_TPS | STATUS_TJT | STATUS_UNF | 1476 STATUS_RU | STATUS_RPS | STATUS_RWT | STATUS_SE | STATUS_AIS; 1477 1478 sc->sc_rxint_mask = STATUS_RI|STATUS_RU|STATUS_RWT; 1479 sc->sc_txint_mask = STATUS_TI|STATUS_UNF|STATUS_TJT; 1480 1481 switch (sc->sc_chip) { 1482 case TULIP_CHIP_WB89C840F: 1483 /* 1484 * Clear bits that we don't want that happen to 1485 * overlap or don't exist. 1486 */ 1487 sc->sc_inten &= ~(STATUS_WINB_REI|STATUS_RWT); 1488 break; 1489 1490 default: 1491 /* Nothing. */ 1492 } 1493 1494 sc->sc_rxint_mask &= sc->sc_inten; 1495 sc->sc_txint_mask &= sc->sc_inten; 1496 1497 TULIP_WRITE(sc, CSR_INTEN, sc->sc_inten); 1498 TULIP_WRITE(sc, CSR_STATUS, 0xffffffff); 1499 1500 /* 1501 * Give the transmit and receive rings to the Tulip. 1502 */ 1503 TULIP_WRITE(sc, CSR_TXLIST, TULIP_CDTXADDR(sc, sc->sc_txnext)); 1504 TULIP_WRITE(sc, CSR_RXLIST, TULIP_CDRXADDR(sc, sc->sc_rxptr)); 1505 1506 /* 1507 * On chips that do this differently, set the station address. 1508 */ 1509 switch (sc->sc_chip) { 1510 case TULIP_CHIP_WB89C840F: 1511 { 1512 /* XXX Do this with stream writes? */ 1513 bus_addr_t cpa = TULIP_CSR_OFFSET(sc, CSR_WINB_CPA0); 1514 1515 for (i = 0; i < ETHER_ADDR_LEN; i++) { 1516 bus_space_write_1(sc->sc_st, sc->sc_sh, 1517 cpa + i, LLADDR(ifp->if_sadl)[i]); 1518 } 1519 break; 1520 } 1521 1522 default: 1523 /* Nothing. */ 1524 } 1525 1526 /* 1527 * Set the receive filter. This will start the transmit and 1528 * receive processes. 1529 */ 1530 (*sc->sc_filter_setup)(sc); 1531 1532 /* 1533 * Start the receive process. 1534 */ 1535 TULIP_WRITE(sc, CSR_RXPOLL, RXPOLL_RPD); 1536 1537 if (sc->sc_tick != NULL) { 1538 /* Start the one second clock. */ 1539 timeout(sc->sc_tick, sc, hz); 1540 } 1541 1542 /* 1543 * Note that the interface is now running. 1544 */ 1545 ifp->if_flags |= IFF_RUNNING; 1546 ifp->if_flags &= ~IFF_OACTIVE; 1547 1548 /* 1549 * Set the media. We must do this after the transmit process is 1550 * running, since we may actually have to transmit packets on 1551 * our board to test link integrity. 1552 */ 1553 (void) (*sc->sc_mediasw->tmsw_set)(sc); 1554 1555 out: 1556 if (error) 1557 printf("%s: interface not running\n", sc->sc_dev.dv_xname); 1558 return (error); 1559 } 1560 1561 /* 1562 * tlp_rxdrain: 1563 * 1564 * Drain the receive queue. 1565 */ 1566 void 1567 tlp_rxdrain(sc) 1568 struct tulip_softc *sc; 1569 { 1570 struct tulip_rxsoft *rxs; 1571 int i; 1572 1573 for (i = 0; i < TULIP_NRXDESC; i++) { 1574 rxs = &sc->sc_rxsoft[i]; 1575 if (rxs->rxs_mbuf != NULL) { 1576 bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap); 1577 m_freem(rxs->rxs_mbuf); 1578 rxs->rxs_mbuf = NULL; 1579 } 1580 } 1581 } 1582 1583 /* 1584 * tlp_stop: 1585 * 1586 * Stop transmission on the interface. 1587 */ 1588 void 1589 tlp_stop(sc, drain) 1590 struct tulip_softc *sc; 1591 int drain; 1592 { 1593 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1594 struct tulip_txsoft *txs; 1595 1596 if (sc->sc_tick != NULL) { 1597 /* Stop the one second clock. */ 1598 untimeout(sc->sc_tick, sc); 1599 } 1600 1601 /* Disable interrupts. */ 1602 TULIP_WRITE(sc, CSR_INTEN, 0); 1603 1604 /* Stop the transmit and receive processes. */ 1605 TULIP_WRITE(sc, CSR_OPMODE, 0); 1606 TULIP_WRITE(sc, CSR_RXLIST, 0); 1607 TULIP_WRITE(sc, CSR_TXLIST, 0); 1608 1609 /* 1610 * Release any queued transmit buffers. 1611 */ 1612 while ((txs = SIMPLEQ_FIRST(&sc->sc_txdirtyq)) != NULL) { 1613 SIMPLEQ_REMOVE_HEAD(&sc->sc_txdirtyq, txs, txs_q); 1614 if (txs->txs_mbuf != NULL) { 1615 bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap); 1616 m_freem(txs->txs_mbuf); 1617 txs->txs_mbuf = NULL; 1618 } 1619 SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q); 1620 } 1621 1622 if (drain) { 1623 /* 1624 * Release the receive buffers. 1625 */ 1626 tlp_rxdrain(sc); 1627 } 1628 1629 sc->sc_flags &= ~(TULIPF_WANT_SETUP|TULIPF_DOING_SETUP); 1630 1631 /* 1632 * Mark the interface down and cancel the watchdog timer. 1633 */ 1634 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1635 ifp->if_timer = 0; 1636 } 1637 1638 #define SROM_EMIT(sc, x) \ 1639 do { \ 1640 TULIP_WRITE((sc), CSR_MIIROM, (x)); \ 1641 delay(1); \ 1642 } while (0) 1643 1644 /* 1645 * tlp_srom_idle: 1646 * 1647 * Put the SROM in idle state. 1648 */ 1649 void 1650 tlp_srom_idle(sc) 1651 struct tulip_softc *sc; 1652 { 1653 u_int32_t miirom; 1654 int i; 1655 1656 miirom = MIIROM_SR; 1657 SROM_EMIT(sc, miirom); 1658 1659 miirom |= MIIROM_RD; 1660 SROM_EMIT(sc, miirom); 1661 1662 miirom |= MIIROM_SROMCS; 1663 SROM_EMIT(sc, miirom); 1664 1665 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1666 1667 /* Strobe the clock 25 times. */ 1668 for (i = 0; i < 25; i++) { 1669 SROM_EMIT(sc, miirom); 1670 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1671 } 1672 1673 SROM_EMIT(sc, miirom); 1674 1675 miirom &= ~MIIROM_SROMCS; 1676 SROM_EMIT(sc, miirom); 1677 1678 SROM_EMIT(sc, 0); 1679 } 1680 1681 /* 1682 * tlp_read_srom: 1683 * 1684 * Read the Tulip SROM. 1685 */ 1686 void 1687 tlp_read_srom(sc, word, wordcnt, data) 1688 struct tulip_softc *sc; 1689 int word, wordcnt; 1690 u_int16_t *data; 1691 { 1692 u_int32_t miirom; 1693 int i, x; 1694 1695 tlp_srom_idle(sc); 1696 1697 /* Select the SROM. */ 1698 miirom = MIIROM_SR; 1699 SROM_EMIT(sc, miirom); 1700 1701 miirom |= MIIROM_RD; 1702 SROM_EMIT(sc, miirom); 1703 1704 for (i = 0; i < wordcnt; i++) { 1705 /* Send CHIP SELECT for one clock tick. */ 1706 miirom |= MIIROM_SROMCS; 1707 SROM_EMIT(sc, miirom); 1708 1709 /* Shift in the READ opcode. */ 1710 for (x = 3; x > 0; x--) { 1711 if (TULIP_SROM_OPC_READ & (1 << (x - 1))) 1712 miirom |= MIIROM_SROMDI; 1713 else 1714 miirom &= ~MIIROM_SROMDI; 1715 SROM_EMIT(sc, miirom); 1716 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1717 SROM_EMIT(sc, miirom); 1718 } 1719 1720 /* Shift in address. */ 1721 for (x = 6; x > 0; x--) { 1722 if ((word + i) & (1 << (x - 1))) 1723 miirom |= MIIROM_SROMDI; 1724 else 1725 miirom &= ~MIIROM_SROMDI; 1726 SROM_EMIT(sc, miirom); 1727 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1728 SROM_EMIT(sc, miirom); 1729 } 1730 1731 /* Shift out data. */ 1732 miirom &= ~MIIROM_SROMDI; 1733 data[i] = 0; 1734 for (x = 16; x > 0; x--) { 1735 SROM_EMIT(sc, miirom|MIIROM_SROMSK); 1736 if (TULIP_ISSET(sc, CSR_MIIROM, MIIROM_SROMDO)) 1737 data[i] |= (1 << (x - 1)); 1738 SROM_EMIT(sc, miirom); 1739 } 1740 1741 /* Clear CHIP SELECT. */ 1742 miirom &= ~MIIROM_SROMCS; 1743 SROM_EMIT(sc, miirom); 1744 } 1745 1746 /* Deselect the SROM. */ 1747 SROM_EMIT(sc, 0); 1748 1749 /* ...and idle it. */ 1750 tlp_srom_idle(sc); 1751 } 1752 1753 #undef SROM_EMIT 1754 1755 /* 1756 * tlp_add_rxbuf: 1757 * 1758 * Add a receive buffer to the indicated descriptor. 1759 */ 1760 int 1761 tlp_add_rxbuf(sc, idx) 1762 struct tulip_softc *sc; 1763 int idx; 1764 { 1765 struct tulip_rxsoft *rxs = &sc->sc_rxsoft[idx]; 1766 struct mbuf *m; 1767 int error; 1768 1769 MGETHDR(m, M_DONTWAIT, MT_DATA); 1770 if (m == NULL) 1771 return (ENOBUFS); 1772 1773 MCLGET(m, M_DONTWAIT); 1774 if ((m->m_flags & M_EXT) == 0) { 1775 m_freem(m); 1776 return (ENOBUFS); 1777 } 1778 1779 if (rxs->rxs_mbuf != NULL) 1780 bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap); 1781 1782 rxs->rxs_mbuf = m; 1783 1784 error = bus_dmamap_load(sc->sc_dmat, rxs->rxs_dmamap, 1785 m->m_ext.ext_buf, m->m_ext.ext_size, NULL, BUS_DMA_NOWAIT); 1786 if (error) { 1787 printf("%s: can't load rx DMA map %d, error = %d\n", 1788 sc->sc_dev.dv_xname, idx, error); 1789 panic("tlp_add_rxbuf"); /* XXX */ 1790 } 1791 1792 bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0, 1793 rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD); 1794 1795 TULIP_INIT_RXDESC(sc, idx); 1796 1797 return (0); 1798 } 1799 1800 /* 1801 * tlp_crc32: 1802 * 1803 * Compute the 32-bit CRC of the provided buffer. 1804 */ 1805 u_int32_t 1806 tlp_crc32(buf, len) 1807 const u_int8_t *buf; 1808 size_t len; 1809 { 1810 static const u_int32_t crctab[] = { 1811 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 1812 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, 1813 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 1814 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c 1815 }; 1816 u_int32_t crc; 1817 int i; 1818 1819 crc = 0xffffffff; 1820 for (i = 0; i < len; i++) { 1821 crc ^= buf[i]; 1822 crc = (crc >> 4) ^ crctab[crc & 0xf]; 1823 crc = (crc >> 4) ^ crctab[crc & 0xf]; 1824 } 1825 return (crc); 1826 } 1827 1828 /* 1829 * tlp_srom_crcok: 1830 * 1831 * Check the CRC of the Tulip SROM. 1832 */ 1833 int 1834 tlp_srom_crcok(romdata) 1835 u_int8_t *romdata; 1836 { 1837 u_int32_t crc; 1838 1839 crc = tlp_crc32(romdata, TULIP_ROM_CRC32_CHECKSUM); 1840 crc = (crc & 0xffff) ^ 0xffff; 1841 if (crc == TULIP_ROM_GETW(romdata, TULIP_ROM_CRC32_CHECKSUM)) 1842 return (1); 1843 return (0); 1844 } 1845 1846 /* 1847 * tlp_parse_old_srom: 1848 * 1849 * Parse old-format SROMs. 1850 * 1851 * This routine is largely lifted from Matt Thomas's `de' driver. 1852 */ 1853 int 1854 tlp_parse_old_srom(sc, enaddr) 1855 struct tulip_softc *sc; 1856 u_int8_t *enaddr; 1857 { 1858 static const u_int8_t testpat[] = 1859 { 0xff, 0, 0x55, 0xaa, 0xff, 0, 0x55, 0xaa }; 1860 int i; 1861 u_int32_t cksum; 1862 1863 if (memcmp(&sc->sc_srom[0], &sc->sc_srom[16], 8) != 0) { 1864 /* 1865 * Some vendors (e.g. ZNYX) don't use the standard 1866 * DEC Address ROM format, but rather just have an 1867 * Ethernet address in the first 6 bytes, maybe a 1868 * 2 byte checksum, and then all 0xff's. 1869 */ 1870 for (i = 8; i < 32; i++) { 1871 if (sc->sc_srom[i] != 0xff) 1872 return (0); 1873 } 1874 1875 /* 1876 * Sanity check the Ethernet address: 1877 * 1878 * - Make sure it's not multicast or locally 1879 * assigned 1880 * - Make sure it has a non-0 OUI 1881 */ 1882 if (sc->sc_srom[0] & 3) 1883 return (0); 1884 if (sc->sc_srom[0] == 0 && sc->sc_srom[1] == 0 && 1885 sc->sc_srom[2] == 0) 1886 return (0); 1887 1888 memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN); 1889 return (1); 1890 } 1891 1892 /* 1893 * Standard DEC Address ROM test. 1894 */ 1895 1896 if (memcmp(&sc->sc_srom[24], testpat, 8) != 0) 1897 return (0); 1898 1899 for (i = 0; i < 8; i++) { 1900 if (sc->sc_srom[i] != sc->sc_srom[15 - i]) 1901 return (0); 1902 } 1903 1904 memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN); 1905 1906 cksum = *(u_int16_t *) &enaddr[0]; 1907 1908 cksum <<= 1; 1909 if (cksum > 0xffff) 1910 cksum -= 0xffff; 1911 1912 cksum += *(u_int16_t *) &enaddr[2]; 1913 if (cksum > 0xffff) 1914 cksum -= 0xffff; 1915 1916 cksum <<= 1; 1917 if (cksum > 0xffff) 1918 cksum -= 0xffff; 1919 1920 cksum += *(u_int16_t *) &enaddr[4]; 1921 if (cksum >= 0xffff) 1922 cksum -= 0xffff; 1923 1924 if (cksum != *(u_int16_t *) &sc->sc_srom[6]) 1925 return (0); 1926 1927 return (1); 1928 } 1929 1930 /* 1931 * tlp_filter_setup: 1932 * 1933 * Set the Tulip's receive filter. 1934 */ 1935 void 1936 tlp_filter_setup(sc) 1937 struct tulip_softc *sc; 1938 { 1939 struct ethercom *ec = &sc->sc_ethercom; 1940 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1941 struct ether_multi *enm; 1942 struct ether_multistep step; 1943 __volatile u_int32_t *sp; 1944 u_int8_t enaddr[ETHER_ADDR_LEN]; 1945 u_int32_t hash; 1946 int cnt; 1947 1948 DPRINTF(sc, ("%s: tlp_filter_setup: sc_flags 0x%08x\n", 1949 sc->sc_dev.dv_xname, sc->sc_flags)); 1950 1951 memcpy(enaddr, LLADDR(ifp->if_sadl), ETHER_ADDR_LEN); 1952 1953 /* 1954 * If there are transmissions pending, wait until they have 1955 * completed. 1956 */ 1957 if (SIMPLEQ_FIRST(&sc->sc_txdirtyq) != NULL || 1958 (sc->sc_flags & TULIPF_DOING_SETUP) != 0) { 1959 sc->sc_flags |= TULIPF_WANT_SETUP; 1960 DPRINTF(sc, ("%s: tlp_filter_setup: deferring\n", 1961 sc->sc_dev.dv_xname)); 1962 return; 1963 } 1964 sc->sc_flags &= ~TULIPF_WANT_SETUP; 1965 1966 /* 1967 * If we're running, idle the transmit and receive engines. If 1968 * we're NOT running, we're being called from tlp_init(), and our 1969 * writing OPMODE will start the transmit and receive processes 1970 * in motion. 1971 */ 1972 if (ifp->if_flags & IFF_RUNNING) 1973 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 1974 1975 sc->sc_opmode &= ~(OPMODE_PR|OPMODE_PM); 1976 1977 if (ifp->if_flags & IFF_PROMISC) { 1978 sc->sc_opmode |= OPMODE_PR; 1979 goto allmulti; 1980 } 1981 1982 /* 1983 * Try Perfect filtering first. 1984 */ 1985 1986 sc->sc_filtmode = TDCTL_Tx_FT_PERFECT; 1987 sp = TULIP_CDSP(sc); 1988 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 1989 cnt = 0; 1990 ETHER_FIRST_MULTI(step, ec, enm); 1991 while (enm != NULL) { 1992 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 1993 /* 1994 * We must listen to a range of multicast addresses. 1995 * For now, just accept all multicasts, rather than 1996 * trying to set only those filter bits needed to match 1997 * the range. (At this time, the only use of address 1998 * ranges is for IP multicast routing, for which the 1999 * range is big enough to require all bits set.) 2000 */ 2001 goto allmulti; 2002 } 2003 if (cnt == (TULIP_MAXADDRS - 2)) { 2004 /* 2005 * We already have our multicast limit (still need 2006 * our station address and broadcast). Go to 2007 * Hash-Perfect mode. 2008 */ 2009 goto hashperfect; 2010 } 2011 *sp++ = ((u_int16_t *) enm->enm_addrlo)[0]; 2012 *sp++ = ((u_int16_t *) enm->enm_addrlo)[1]; 2013 *sp++ = ((u_int16_t *) enm->enm_addrlo)[2]; 2014 ETHER_NEXT_MULTI(step, enm); 2015 } 2016 2017 if (ifp->if_flags & IFF_BROADCAST) { 2018 /* ...and the broadcast address. */ 2019 cnt++; 2020 *sp++ = 0xffff; 2021 *sp++ = 0xffff; 2022 *sp++ = 0xffff; 2023 } 2024 2025 /* Pad the rest with our station address. */ 2026 for (; cnt < TULIP_MAXADDRS; cnt++) { 2027 *sp++ = ((u_int16_t *) enaddr)[0]; 2028 *sp++ = ((u_int16_t *) enaddr)[1]; 2029 *sp++ = ((u_int16_t *) enaddr)[2]; 2030 } 2031 ifp->if_flags &= ~IFF_ALLMULTI; 2032 goto setit; 2033 2034 hashperfect: 2035 /* 2036 * Try Hash-Perfect mode. 2037 */ 2038 2039 /* 2040 * Some 21140 chips have broken Hash-Perfect modes. On these 2041 * chips, we simply use Hash-Only mode, and put our station 2042 * address into the filter. 2043 */ 2044 if (sc->sc_chip == TULIP_CHIP_21140) 2045 sc->sc_filtmode = TDCTL_Tx_FT_HASHONLY; 2046 else 2047 sc->sc_filtmode = TDCTL_Tx_FT_HASH; 2048 sp = TULIP_CDSP(sc); 2049 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 2050 ETHER_FIRST_MULTI(step, ec, enm); 2051 while (enm != NULL) { 2052 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2053 /* 2054 * We must listen to a range of multicast addresses. 2055 * For now, just accept all multicasts, rather than 2056 * trying to set only those filter bits needed to match 2057 * the range. (At this time, the only use of address 2058 * ranges is for IP multicast routing, for which the 2059 * range is big enough to require all bits set.) 2060 */ 2061 goto allmulti; 2062 } 2063 hash = tlp_mchash(enm->enm_addrlo); 2064 sp[hash >> 4] |= 1 << (hash & 0xf); 2065 ETHER_NEXT_MULTI(step, enm); 2066 } 2067 2068 if (ifp->if_flags & IFF_BROADCAST) { 2069 /* ...and the broadcast address. */ 2070 hash = tlp_mchash(etherbroadcastaddr); 2071 sp[hash >> 4] |= 1 << (hash & 0xf); 2072 } 2073 2074 if (sc->sc_filtmode == TDCTL_Tx_FT_HASHONLY) { 2075 /* ...and our station address. */ 2076 hash = tlp_mchash(enaddr); 2077 sp[hash >> 4] |= 1 << (hash & 0xf); 2078 } else { 2079 /* 2080 * Hash-Perfect mode; put our station address after 2081 * the hash table. 2082 */ 2083 sp[39] = ((u_int16_t *) enaddr)[0]; 2084 sp[40] = ((u_int16_t *) enaddr)[1]; 2085 sp[41] = ((u_int16_t *) enaddr)[2]; 2086 } 2087 ifp->if_flags &= ~IFF_ALLMULTI; 2088 goto setit; 2089 2090 allmulti: 2091 /* 2092 * Use Perfect filter mode. First address is the broadcast address, 2093 * and pad the rest with our station address. We'll set Pass-all- 2094 * multicast in OPMODE below. 2095 */ 2096 sc->sc_filtmode = TDCTL_Tx_FT_PERFECT; 2097 sp = TULIP_CDSP(sc); 2098 memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN); 2099 cnt = 0; 2100 if (ifp->if_flags & IFF_BROADCAST) { 2101 cnt++; 2102 *sp++ = 0xffff; 2103 *sp++ = 0xffff; 2104 *sp++ = 0xffff; 2105 } 2106 for (; cnt < TULIP_MAXADDRS; cnt++) { 2107 *sp++ = ((u_int16_t *) enaddr)[0]; 2108 *sp++ = ((u_int16_t *) enaddr)[1]; 2109 *sp++ = ((u_int16_t *) enaddr)[2]; 2110 } 2111 ifp->if_flags |= IFF_ALLMULTI; 2112 2113 setit: 2114 if (ifp->if_flags & IFF_ALLMULTI) 2115 sc->sc_opmode |= OPMODE_PM; 2116 2117 /* Sync the setup packet buffer. */ 2118 TULIP_CDSPSYNC(sc, BUS_DMASYNC_PREWRITE); 2119 2120 /* 2121 * Fill in the setup packet descriptor. 2122 */ 2123 sc->sc_setup_desc.td_bufaddr1 = TULIP_CDSPADDR(sc); 2124 sc->sc_setup_desc.td_bufaddr2 = TULIP_CDTXADDR(sc, sc->sc_txnext); 2125 sc->sc_setup_desc.td_ctl = 2126 (TULIP_SETUP_PACKET_LEN << TDCTL_SIZE1_SHIFT) | 2127 sc->sc_filtmode | TDCTL_Tx_SET | TDCTL_Tx_FS | TDCTL_Tx_LS | 2128 TDCTL_Tx_IC | TDCTL_CH; 2129 sc->sc_setup_desc.td_status = TDSTAT_OWN; 2130 TULIP_CDSDSYNC(sc, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2131 2132 /* 2133 * Write the address of the setup descriptor. This also has 2134 * the side effect of giving the transmit ring to the chip, 2135 * since the setup descriptor points to the next available 2136 * descriptor in the ring. 2137 */ 2138 TULIP_WRITE(sc, CSR_TXLIST, TULIP_CDSDADDR(sc)); 2139 2140 /* 2141 * Set the OPMODE register. This will also resume the 2142 * transmit transmit process we idled above. 2143 */ 2144 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2145 2146 sc->sc_flags |= TULIPF_DOING_SETUP; 2147 2148 /* 2149 * Kick the transmitter; this will cause the Tulip to 2150 * read the setup descriptor. 2151 */ 2152 /* XXX USE AUTOPOLLING? */ 2153 TULIP_WRITE(sc, CSR_TXPOLL, TXPOLL_TPD); 2154 2155 /* Set up a watchdog timer in case the chip flakes out. */ 2156 ifp->if_timer = 5; 2157 2158 DPRINTF(sc, ("%s: tlp_filter_setup: returning\n", sc->sc_dev.dv_xname)); 2159 } 2160 2161 /* 2162 * tlp_winb_filter_setup: 2163 * 2164 * Set the Winbond 89C840F's receive filter. 2165 */ 2166 void 2167 tlp_winb_filter_setup(sc) 2168 struct tulip_softc *sc; 2169 { 2170 struct ethercom *ec = &sc->sc_ethercom; 2171 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2172 struct ether_multi *enm; 2173 struct ether_multistep step; 2174 u_int32_t hash, mchash[2]; 2175 2176 DPRINTF(sc, ("%s: tlp_winb_filter_setup: sc_flags 0x%08x\n", 2177 sc->sc_dev.dv_xname, sc->sc_flags)); 2178 2179 sc->sc_opmode &= ~(OPMODE_WINB_APP|OPMODE_WINB_AMP|OPMODE_WINB_ABP); 2180 2181 if (ifp->if_flags & IFF_MULTICAST) 2182 sc->sc_opmode |= OPMODE_WINB_AMP; 2183 2184 if (ifp->if_flags & IFF_BROADCAST) 2185 sc->sc_opmode |= OPMODE_WINB_ABP; 2186 2187 if (ifp->if_flags & IFF_PROMISC) { 2188 sc->sc_opmode |= OPMODE_WINB_APP; 2189 goto allmulti; 2190 } 2191 2192 mchash[0] = mchash[1] = 0; 2193 2194 ETHER_FIRST_MULTI(step, ec, enm); 2195 while (enm != NULL) { 2196 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2197 /* 2198 * We must listen to a range of multicast addresses. 2199 * For now, just accept all multicasts, rather than 2200 * trying to set only those filter bits needed to match 2201 * the range. (At this time, the only use of address 2202 * ranges is for IP multicast routing, for which the 2203 * range is big enough to require all bits set.) 2204 */ 2205 goto allmulti; 2206 } 2207 2208 /* 2209 * According to the FreeBSD `wb' driver, yes, you 2210 * really do invert the hash. 2211 */ 2212 hash = (~(tlp_crc32(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26)) 2213 & 0x3f; 2214 mchash[hash >> 5] |= 1 << (hash & 0x1f); 2215 ETHER_NEXT_MULTI(step, enm); 2216 } 2217 ifp->if_flags &= ~IFF_ALLMULTI; 2218 goto setit; 2219 2220 allmulti: 2221 ifp->if_flags |= IFF_ALLMULTI; 2222 mchash[0] = mchash[1] = 0xffffffff; 2223 2224 setit: 2225 TULIP_WRITE(sc, CSR_WINB_CMA0, mchash[0]); 2226 TULIP_WRITE(sc, CSR_WINB_CMA1, mchash[1]); 2227 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2228 DPRINTF(sc, ("%s: tlp_winb_filter_setup: returning\n", 2229 sc->sc_dev.dv_xname)); 2230 } 2231 2232 /* 2233 * tlp_idle: 2234 * 2235 * Cause the transmit and/or receive processes to go idle. 2236 */ 2237 void 2238 tlp_idle(sc, bits) 2239 struct tulip_softc *sc; 2240 u_int32_t bits; 2241 { 2242 static const char *tx_state_names[] = { 2243 "STOPPED", 2244 "RUNNING - FETCH", 2245 "RUNNING - WAIT", 2246 "RUNNING - READING", 2247 "-- RESERVED --", 2248 "RUNNING - SETUP", 2249 "SUSPENDED", 2250 "RUNNING - CLOSE", 2251 }; 2252 static const char *rx_state_names[] = { 2253 "STOPPED", 2254 "RUNNING - FETCH", 2255 "RUNNING - CHECK", 2256 "RUNNING - WAIT", 2257 "SUSPENDED", 2258 "RUNNING - CLOSE", 2259 "RUNNING - FLUSH", 2260 "RUNNING - QUEUE", 2261 }; 2262 u_int32_t csr, ackmask = 0; 2263 int i; 2264 2265 if (bits & OPMODE_ST) 2266 ackmask |= STATUS_TPS; 2267 2268 if (bits & OPMODE_SR) 2269 ackmask |= STATUS_RPS; 2270 2271 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode & ~bits); 2272 2273 for (i = 0; i < 1000; i++) { 2274 if (TULIP_ISSET(sc, CSR_STATUS, ackmask) == ackmask) 2275 break; 2276 delay(10); 2277 } 2278 2279 csr = TULIP_READ(sc, CSR_STATUS); 2280 if ((csr & ackmask) != ackmask) { 2281 if ((bits & OPMODE_ST) != 0 && (csr & STATUS_TPS) == 0 && 2282 (csr & STATUS_TS) != STATUS_TS_STOPPED) 2283 printf("%s: transmit process failed to idle: " 2284 "state %s\n", sc->sc_dev.dv_xname, 2285 tx_state_names[(csr & STATUS_TS) >> 20]); 2286 if ((bits & OPMODE_SR) != 0 && (csr & STATUS_RPS) == 0 && 2287 (csr & STATUS_RS) != STATUS_RS_STOPPED) 2288 printf("%s: receive process failed to idle: " 2289 "state %s\n", sc->sc_dev.dv_xname, 2290 rx_state_names[(csr & STATUS_RS) >> 17]); 2291 } 2292 TULIP_WRITE(sc, CSR_STATUS, ackmask); 2293 } 2294 2295 /***************************************************************************** 2296 * Generic media support functions. 2297 *****************************************************************************/ 2298 2299 /* 2300 * tlp_mediastatus: [ifmedia interface function] 2301 * 2302 * Query the current media. 2303 */ 2304 void 2305 tlp_mediastatus(ifp, ifmr) 2306 struct ifnet *ifp; 2307 struct ifmediareq *ifmr; 2308 { 2309 struct tulip_softc *sc = ifp->if_softc; 2310 2311 (*sc->sc_mediasw->tmsw_get)(sc, ifmr); 2312 } 2313 2314 /* 2315 * tlp_mediachange: [ifmedia interface function] 2316 * 2317 * Update the current media. 2318 */ 2319 int 2320 tlp_mediachange(ifp) 2321 struct ifnet *ifp; 2322 { 2323 struct tulip_softc *sc = ifp->if_softc; 2324 2325 return ((*sc->sc_mediasw->tmsw_set)(sc)); 2326 } 2327 2328 /***************************************************************************** 2329 * Support functions for MII-attached media. 2330 *****************************************************************************/ 2331 2332 /* 2333 * tlp_mii_tick: 2334 * 2335 * One second timer, used to tick the MII. 2336 */ 2337 void 2338 tlp_mii_tick(arg) 2339 void *arg; 2340 { 2341 struct tulip_softc *sc = arg; 2342 int s; 2343 2344 s = splnet(); 2345 mii_tick(&sc->sc_mii); 2346 splx(s); 2347 2348 timeout(sc->sc_tick, sc, hz); 2349 } 2350 2351 /* 2352 * tlp_mii_statchg: [mii interface function] 2353 * 2354 * Callback from PHY when media changes. 2355 */ 2356 void 2357 tlp_mii_statchg(self) 2358 struct device *self; 2359 { 2360 struct tulip_softc *sc = (struct tulip_softc *)self; 2361 2362 /* Idle the transmit and receive processes. */ 2363 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2364 2365 /* 2366 * XXX What about Heartbeat Disable? Is it magically frobbed 2367 * XXX by the PHY? I hope so... 2368 */ 2369 2370 sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD); 2371 2372 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T) 2373 sc->sc_opmode |= OPMODE_TTM; 2374 2375 if (sc->sc_mii.mii_media_active & IFM_FDX) 2376 sc->sc_opmode |= OPMODE_FD; 2377 2378 /* 2379 * Write new OPMODE bits. This also restarts the transmit 2380 * and receive processes. 2381 */ 2382 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2383 2384 /* XXX Update ifp->if_baudrate */ 2385 } 2386 2387 /* 2388 * tlp_winb_mii_statchg: [mii interface function] 2389 * 2390 * Callback from PHY when media changes. This version is 2391 * for the Winbond 89C840F, which has different OPMODE bits. 2392 */ 2393 void 2394 tlp_winb_mii_statchg(self) 2395 struct device *self; 2396 { 2397 struct tulip_softc *sc = (struct tulip_softc *)self; 2398 2399 /* Idle the transmit and receive processes. */ 2400 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2401 2402 /* 2403 * XXX What about Heartbeat Disable? Is it magically frobbed 2404 * XXX by the PHY? I hope so... 2405 */ 2406 2407 sc->sc_opmode &= ~(OPMODE_WINB_FES|OPMODE_FD); 2408 2409 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_100_TX) 2410 sc->sc_opmode |= OPMODE_WINB_FES; 2411 2412 if (sc->sc_mii.mii_media_active & IFM_FDX) 2413 sc->sc_opmode |= OPMODE_FD; 2414 2415 /* 2416 * Write new OPMODE bits. This also restarts the transmit 2417 * and receive processes. 2418 */ 2419 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2420 2421 /* XXX Update ifp->if_baudrate */ 2422 } 2423 2424 /* 2425 * tlp_mii_getmedia: 2426 * 2427 * Callback from ifmedia to request current media status. 2428 */ 2429 void 2430 tlp_mii_getmedia(sc, ifmr) 2431 struct tulip_softc *sc; 2432 struct ifmediareq *ifmr; 2433 { 2434 2435 mii_pollstat(&sc->sc_mii); 2436 ifmr->ifm_status = sc->sc_mii.mii_media_status; 2437 ifmr->ifm_active = sc->sc_mii.mii_media_active; 2438 } 2439 2440 /* 2441 * tlp_mii_setmedia: 2442 * 2443 * Callback from ifmedia to request new media setting. 2444 */ 2445 int 2446 tlp_mii_setmedia(sc) 2447 struct tulip_softc *sc; 2448 { 2449 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2450 2451 if (ifp->if_flags & IFF_UP) 2452 mii_mediachg(&sc->sc_mii); 2453 return (0); 2454 } 2455 2456 #define MII_EMIT(sc, x) \ 2457 do { \ 2458 TULIP_WRITE((sc), CSR_MIIROM, (x)); \ 2459 delay(1); \ 2460 } while (0) 2461 2462 /* 2463 * tlp_sio_mii_sync: 2464 * 2465 * Synchronize the SIO-attached MII. 2466 */ 2467 void 2468 tlp_sio_mii_sync(sc) 2469 struct tulip_softc *sc; 2470 { 2471 u_int32_t miirom; 2472 int i; 2473 2474 miirom = MIIROM_MIIDIR|MIIROM_MDO; 2475 2476 MII_EMIT(sc, miirom); 2477 for (i = 0; i < 32; i++) { 2478 MII_EMIT(sc, miirom | MIIROM_MDC); 2479 MII_EMIT(sc, miirom); 2480 } 2481 } 2482 2483 /* 2484 * tlp_sio_mii_sendbits: 2485 * 2486 * Send a series of bits out the SIO to the MII. 2487 */ 2488 void 2489 tlp_sio_mii_sendbits(sc, data, nbits) 2490 struct tulip_softc *sc; 2491 u_int32_t data; 2492 int nbits; 2493 { 2494 u_int32_t miirom, i; 2495 2496 miirom = MIIROM_MIIDIR; 2497 MII_EMIT(sc, miirom); 2498 2499 for (i = 1 << (nbits - 1); i != 0; i >>= 1) { 2500 if (data & i) 2501 miirom |= MIIROM_MDO; 2502 else 2503 miirom &= ~MIIROM_MDO; 2504 MII_EMIT(sc, miirom); 2505 MII_EMIT(sc, miirom|MIIROM_MDC); 2506 MII_EMIT(sc, miirom); 2507 } 2508 } 2509 2510 /* 2511 * tlp_sio_mii_readreg: 2512 * 2513 * Read a PHY register via SIO-attached MII. 2514 */ 2515 int 2516 tlp_sio_mii_readreg(self, phy, reg) 2517 struct device *self; 2518 int phy, reg; 2519 { 2520 struct tulip_softc *sc = (void *) self; 2521 int val = 0, err = 0, i; 2522 2523 tlp_sio_mii_sync(sc); 2524 2525 tlp_sio_mii_sendbits(sc, MII_COMMAND_START, 2); 2526 tlp_sio_mii_sendbits(sc, MII_COMMAND_READ, 2); 2527 tlp_sio_mii_sendbits(sc, phy, 5); 2528 tlp_sio_mii_sendbits(sc, reg, 5); 2529 2530 MII_EMIT(sc, MIIROM_MIIDIR); 2531 MII_EMIT(sc, MIIROM_MIIDIR|MIIROM_MDC); 2532 2533 MII_EMIT(sc, 0); 2534 MII_EMIT(sc, MIIROM_MDC); 2535 2536 err = TULIP_ISSET(sc, CSR_MIIROM, MIIROM_MDI); 2537 2538 MII_EMIT(sc, 0); 2539 MII_EMIT(sc, MIIROM_MDC); 2540 2541 for (i = 0; i < 16; i++) { 2542 val <<= 1; 2543 MII_EMIT(sc, 0); 2544 if (err == 0 && TULIP_ISSET(sc, CSR_MIIROM, MIIROM_MDI)) 2545 val |= 1; 2546 MII_EMIT(sc, MIIROM_MDC); 2547 } 2548 2549 MII_EMIT(sc, 0); 2550 2551 return (err ? 0 : val); 2552 } 2553 2554 /* 2555 * tlp_sio_mii_writereg: 2556 * 2557 * Write a PHY register via SIO-attached MII. 2558 */ 2559 void 2560 tlp_sio_mii_writereg(self, phy, reg, val) 2561 struct device *self; 2562 int phy, reg, val; 2563 { 2564 struct tulip_softc *sc = (void *) self; 2565 2566 tlp_sio_mii_sync(sc); 2567 2568 tlp_sio_mii_sendbits(sc, MII_COMMAND_START, 2); 2569 tlp_sio_mii_sendbits(sc, MII_COMMAND_WRITE, 2); 2570 tlp_sio_mii_sendbits(sc, phy, 5); 2571 tlp_sio_mii_sendbits(sc, reg, 5); 2572 tlp_sio_mii_sendbits(sc, MII_COMMAND_ACK, 2); 2573 tlp_sio_mii_sendbits(sc, val, 16); 2574 2575 MII_EMIT(sc, 0); 2576 } 2577 2578 #undef MII_EMIT 2579 2580 /* 2581 * tlp_pnic_mii_readreg: 2582 * 2583 * Read a PHY register on the Lite-On PNIC. 2584 */ 2585 int 2586 tlp_pnic_mii_readreg(self, phy, reg) 2587 struct device *self; 2588 int phy, reg; 2589 { 2590 struct tulip_softc *sc = (void *) self; 2591 u_int32_t val; 2592 int i; 2593 2594 TULIP_WRITE(sc, CSR_PNIC_MII, 2595 PNIC_MII_MBO | PNIC_MII_RESERVED | 2596 PNIC_MII_READ | (phy << PNIC_MII_PHYSHIFT) | 2597 (reg << PNIC_MII_REGSHIFT)); 2598 2599 for (i = 0; i < 1000; i++) { 2600 delay(10); 2601 val = TULIP_READ(sc, CSR_PNIC_MII); 2602 if ((val & PNIC_MII_BUSY) == 0) { 2603 if ((val & PNIC_MII_DATA) == PNIC_MII_DATA) 2604 return (0); 2605 else 2606 return (val & PNIC_MII_DATA); 2607 } 2608 } 2609 printf("%s: MII read timed out\n", sc->sc_dev.dv_xname); 2610 return (0); 2611 } 2612 2613 /* 2614 * tlp_pnic_mii_writereg: 2615 * 2616 * Write a PHY register on the Lite-On PNIC. 2617 */ 2618 void 2619 tlp_pnic_mii_writereg(self, phy, reg, val) 2620 struct device *self; 2621 int phy, reg, val; 2622 { 2623 struct tulip_softc *sc = (void *) self; 2624 int i; 2625 2626 TULIP_WRITE(sc, CSR_PNIC_MII, 2627 PNIC_MII_MBO | PNIC_MII_RESERVED | 2628 PNIC_MII_WRITE | (phy << PNIC_MII_PHYSHIFT) | 2629 (reg << PNIC_MII_REGSHIFT) | val); 2630 2631 for (i = 0; i < 1000; i++) { 2632 delay(10); 2633 if (TULIP_ISSET(sc, CSR_PNIC_MII, PNIC_MII_BUSY) == 0) 2634 return; 2635 } 2636 printf("%s: MII write timed out\n", sc->sc_dev.dv_xname); 2637 } 2638 2639 /***************************************************************************** 2640 * Chip/board-specific media switches. The ones here are ones that 2641 * are potentially common to multiple front-ends. 2642 *****************************************************************************/ 2643 2644 /* 2645 * 21040 and 21041 media switches. 2646 */ 2647 void tlp_21040_tmsw_init __P((struct tulip_softc *)); 2648 void tlp_21040_tp_tmsw_init __P((struct tulip_softc *)); 2649 void tlp_21040_auibnc_tmsw_init __P((struct tulip_softc *)); 2650 void tlp_21040_21041_tmsw_get __P((struct tulip_softc *, 2651 struct ifmediareq *)); 2652 int tlp_21040_21041_tmsw_set __P((struct tulip_softc *)); 2653 2654 const struct tulip_mediasw tlp_21040_mediasw = { 2655 tlp_21040_tmsw_init, tlp_21040_21041_tmsw_get, tlp_21040_21041_tmsw_set 2656 }; 2657 2658 const struct tulip_mediasw tlp_21040_tp_mediasw = { 2659 tlp_21040_tp_tmsw_init, tlp_21040_21041_tmsw_get, 2660 tlp_21040_21041_tmsw_set 2661 }; 2662 2663 const struct tulip_mediasw tlp_21040_auibnc_mediasw = { 2664 tlp_21040_auibnc_tmsw_init, tlp_21040_21041_tmsw_get, 2665 tlp_21040_21041_tmsw_set 2666 }; 2667 2668 #define ADD(m, t) ifmedia_add(&sc->sc_mii.mii_media, (m), 0, (t)) 2669 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 2670 2671 void 2672 tlp_21040_tmsw_init(sc) 2673 struct tulip_softc *sc; 2674 { 2675 struct tulip_21040_21041_sia_media *tsm; 2676 const char *sep = ""; 2677 2678 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2679 tlp_mediastatus); 2680 2681 printf("%s: ", sc->sc_dev.dv_xname); 2682 2683 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2684 M_WAITOK); 2685 tsm->tsm_siaconn = SIACONN_21040_10BASET; 2686 tsm->tsm_siatxrx = SIATXRX_21040_10BASET; 2687 tsm->tsm_siagen = SIAGEN_21040_10BASET; 2688 ADD(IFM_ETHER|IFM_10_T, tsm); 2689 PRINT("10baseT"); 2690 2691 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2692 M_WAITOK); 2693 tsm->tsm_siaconn = SIACONN_21040_10BASET_FDX; 2694 tsm->tsm_siatxrx = SIATXRX_21040_10BASET_FDX; 2695 tsm->tsm_siagen = SIAGEN_21040_10BASET_FDX; 2696 ADD(IFM_ETHER|IFM_10_T|IFM_FDX, tsm); 2697 PRINT("10baseT-FDX"); 2698 2699 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2700 M_WAITOK); 2701 tsm->tsm_siaconn = SIACONN_21040_AUI; 2702 tsm->tsm_siatxrx = SIATXRX_21040_AUI; 2703 tsm->tsm_siagen = SIAGEN_21040_AUI; 2704 ADD(IFM_ETHER|IFM_10_5, tsm); 2705 PRINT("10base5"); 2706 2707 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2708 M_WAITOK); 2709 tsm->tsm_siaconn = SIACONN_21040_EXTSIA; 2710 tsm->tsm_siatxrx = SIATXRX_21040_EXTSIA; 2711 tsm->tsm_siagen = SIAGEN_21040_EXTSIA; 2712 ADD(IFM_ETHER|IFM_MANUAL, tsm); 2713 PRINT("manual"); 2714 2715 /* 2716 * XXX Autosense not yet supported. 2717 */ 2718 2719 /* XXX This should be auto-sense. */ 2720 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T); 2721 printf(", default 10baseT"); 2722 2723 printf("\n"); 2724 } 2725 2726 void 2727 tlp_21040_tp_tmsw_init(sc) 2728 struct tulip_softc *sc; 2729 { 2730 struct tulip_21040_21041_sia_media *tsm; 2731 const char *sep = ""; 2732 2733 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2734 tlp_mediastatus); 2735 2736 printf("%s: ", sc->sc_dev.dv_xname); 2737 2738 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2739 M_WAITOK); 2740 tsm->tsm_siaconn = SIACONN_21040_10BASET; 2741 tsm->tsm_siatxrx = SIATXRX_21040_10BASET; 2742 tsm->tsm_siagen = SIAGEN_21040_10BASET; 2743 ADD(IFM_ETHER|IFM_10_T, tsm); 2744 PRINT("10baseT"); 2745 2746 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2747 M_WAITOK); 2748 tsm->tsm_siaconn = SIACONN_21040_10BASET_FDX; 2749 tsm->tsm_siatxrx = SIATXRX_21040_10BASET_FDX; 2750 tsm->tsm_siagen = SIAGEN_21040_10BASET_FDX; 2751 ADD(IFM_ETHER|IFM_10_T|IFM_FDX, tsm); 2752 PRINT("10baseT-FDX"); 2753 2754 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T); 2755 printf(", default 10baseT"); 2756 2757 printf("\n"); 2758 } 2759 2760 void 2761 tlp_21040_auibnc_tmsw_init(sc) 2762 struct tulip_softc *sc; 2763 { 2764 struct tulip_21040_21041_sia_media *tsm; 2765 const char *sep = ""; 2766 2767 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2768 tlp_mediastatus); 2769 2770 printf("%s: ", sc->sc_dev.dv_xname); 2771 2772 tsm = malloc(sizeof(struct tulip_21040_21041_sia_media), M_DEVBUF, 2773 M_WAITOK); 2774 tsm->tsm_siaconn = SIACONN_21040_AUI; 2775 tsm->tsm_siatxrx = SIATXRX_21040_AUI; 2776 tsm->tsm_siagen = SIAGEN_21040_AUI; 2777 ADD(IFM_ETHER|IFM_10_5, tsm); 2778 PRINT("10base5"); 2779 2780 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_5); 2781 2782 printf("\n"); 2783 } 2784 2785 #undef ADD 2786 #undef PRINT 2787 2788 void 2789 tlp_21040_21041_tmsw_get(sc, ifmr) 2790 struct tulip_softc *sc; 2791 struct ifmediareq *ifmr; 2792 { 2793 struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur; 2794 2795 ifmr->ifm_status = 0; 2796 2797 switch (IFM_SUBTYPE(ife->ifm_media)) { 2798 case IFM_AUTO: 2799 /* 2800 * XXX Implement autosensing case. 2801 */ 2802 break; 2803 2804 case IFM_10_T: 2805 /* 2806 * We're able to detect link directly on twisted pair. 2807 */ 2808 ifmr->ifm_status = IFM_AVALID; 2809 if (TULIP_ISSET(sc, CSR_SIASTAT, SIASTAT_LKF) == 0) 2810 ifmr->ifm_status |= IFM_ACTIVE; 2811 /* FALLTHROUGH */ 2812 default: 2813 /* 2814 * If not autosensing, active media is the currently 2815 * selected media. 2816 */ 2817 ifmr->ifm_active = ife->ifm_media; 2818 } 2819 } 2820 2821 int 2822 tlp_21040_21041_tmsw_set(sc) 2823 struct tulip_softc *sc; 2824 { 2825 struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur; 2826 struct tulip_21040_21041_sia_media *tsm; 2827 2828 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 2829 /* 2830 * If not autosensing, just pull the SIA settings out 2831 * of the media entry. 2832 */ 2833 tsm = ife->ifm_aux; 2834 TULIP_WRITE(sc, CSR_SIACONN, SIACONN_SRL); 2835 TULIP_WRITE(sc, CSR_SIATXRX, tsm->tsm_siatxrx); 2836 TULIP_WRITE(sc, CSR_SIAGEN, tsm->tsm_siagen); 2837 TULIP_WRITE(sc, CSR_SIACONN, tsm->tsm_siaconn); 2838 2839 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 2840 sc->sc_opmode &= ~OPMODE_FD; 2841 if (ife->ifm_media & IFM_FDX) 2842 sc->sc_opmode |= OPMODE_FD; 2843 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 2844 } else { 2845 /* 2846 * XXX Implement autosensing case. 2847 */ 2848 } 2849 2850 return (0); 2851 } 2852 2853 /* 2854 * MII-on-SIO media switch. Handles only MII attached to the SIO. 2855 */ 2856 void tlp_sio_mii_tmsw_init __P((struct tulip_softc *)); 2857 2858 const struct tulip_mediasw tlp_sio_mii_mediasw = { 2859 tlp_sio_mii_tmsw_init, tlp_mii_getmedia, tlp_mii_setmedia 2860 }; 2861 2862 void 2863 tlp_sio_mii_tmsw_init(sc) 2864 struct tulip_softc *sc; 2865 { 2866 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2867 2868 sc->sc_mii.mii_ifp = ifp; 2869 sc->sc_mii.mii_readreg = tlp_sio_mii_readreg; 2870 sc->sc_mii.mii_writereg = tlp_sio_mii_writereg; 2871 sc->sc_mii.mii_statchg = sc->sc_statchg; 2872 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2873 tlp_mediastatus); 2874 mii_phy_probe(&sc->sc_dev, &sc->sc_mii, 0xffffffff); 2875 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 2876 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); 2877 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE); 2878 } else { 2879 sc->sc_flags |= TULIPF_HAS_MII; 2880 sc->sc_tick = tlp_mii_tick; 2881 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2882 } 2883 } 2884 2885 /* 2886 * Lite-On PNIC media switch. Must handle MII or internal NWAY. 2887 */ 2888 void tlp_pnic_tmsw_init __P((struct tulip_softc *)); 2889 void tlp_pnic_tmsw_get __P((struct tulip_softc *, struct ifmediareq *)); 2890 int tlp_pnic_tmsw_set __P((struct tulip_softc *)); 2891 2892 const struct tulip_mediasw tlp_pnic_mediasw = { 2893 tlp_pnic_tmsw_init, tlp_pnic_tmsw_get, tlp_pnic_tmsw_set 2894 }; 2895 2896 void tlp_pnic_nway_statchg __P((struct device *)); 2897 void tlp_pnic_nway_tick __P((void *)); 2898 int tlp_pnic_nway_service __P((struct tulip_softc *, int)); 2899 void tlp_pnic_nway_reset __P((struct tulip_softc *)); 2900 int tlp_pnic_nway_auto __P((struct tulip_softc *, int)); 2901 void tlp_pnic_nway_auto_timeout __P((void *)); 2902 void tlp_pnic_nway_status __P((struct tulip_softc *)); 2903 void tlp_pnic_nway_acomp __P((struct tulip_softc *)); 2904 2905 void 2906 tlp_pnic_tmsw_init(sc) 2907 struct tulip_softc *sc; 2908 { 2909 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2910 const char *sep = ""; 2911 2912 #define ADD(m, c) ifmedia_add(&sc->sc_mii.mii_media, (m), (c), NULL) 2913 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 2914 2915 sc->sc_mii.mii_ifp = ifp; 2916 sc->sc_mii.mii_readreg = tlp_pnic_mii_readreg; 2917 sc->sc_mii.mii_writereg = tlp_pnic_mii_writereg; 2918 sc->sc_mii.mii_statchg = sc->sc_statchg; 2919 ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange, 2920 tlp_mediastatus); 2921 mii_phy_probe(&sc->sc_dev, &sc->sc_mii, 0xffffffff); 2922 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 2923 /* XXX What about AUI/BNC support? */ 2924 printf("%s: ", sc->sc_dev.dv_xname); 2925 2926 tlp_pnic_nway_reset(sc); 2927 2928 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0), 2929 PNIC_NWAY_TW|PNIC_NWAY_CAP10T); 2930 PRINT("10baseT"); 2931 2932 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, 0), 2933 PNIC_NWAY_TW|PNIC_NWAY_FD|PNIC_NWAY_CAP10TFDX); 2934 PRINT("10baseT-FDX"); 2935 2936 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, 0), 2937 PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_CAP100TX); 2938 PRINT("100baseTX"); 2939 2940 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, 0), 2941 PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_FD| 2942 PNIC_NWAY_CAP100TXFDX); 2943 PRINT("100baseTX-FDX"); 2944 2945 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0), 2946 PNIC_NWAY_TW|PNIC_NWAY_RN|PNIC_NWAY_NW| 2947 PNIC_NWAY_CAP10T|PNIC_NWAY_CAP10TFDX| 2948 PNIC_NWAY_CAP100TXFDX|PNIC_NWAY_CAP100TX); 2949 PRINT("auto"); 2950 2951 printf("\n"); 2952 2953 sc->sc_statchg = tlp_pnic_nway_statchg; 2954 sc->sc_tick = tlp_pnic_nway_tick; 2955 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2956 } else { 2957 sc->sc_flags |= TULIPF_HAS_MII; 2958 sc->sc_tick = tlp_mii_tick; 2959 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 2960 } 2961 2962 #undef ADD 2963 #undef PRINT 2964 } 2965 2966 void 2967 tlp_pnic_tmsw_get(sc, ifmr) 2968 struct tulip_softc *sc; 2969 struct ifmediareq *ifmr; 2970 { 2971 struct mii_data *mii = &sc->sc_mii; 2972 2973 if (sc->sc_flags & TULIPF_HAS_MII) 2974 tlp_mii_getmedia(sc, ifmr); 2975 else { 2976 mii->mii_media_status = 0; 2977 mii->mii_media_active = IFM_NONE; 2978 tlp_pnic_nway_service(sc, MII_POLLSTAT); 2979 ifmr->ifm_status = sc->sc_mii.mii_media_status; 2980 ifmr->ifm_active = sc->sc_mii.mii_media_active; 2981 } 2982 } 2983 2984 int 2985 tlp_pnic_tmsw_set(sc) 2986 struct tulip_softc *sc; 2987 { 2988 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2989 struct mii_data *mii = &sc->sc_mii; 2990 2991 if (sc->sc_flags & TULIPF_HAS_MII) 2992 return (tlp_mii_setmedia(sc)); 2993 2994 if (ifp->if_flags & IFF_UP) { 2995 mii->mii_media_status = 0; 2996 mii->mii_media_active = IFM_NONE; 2997 return (tlp_pnic_nway_service(sc, MII_MEDIACHG)); 2998 } 2999 3000 return (0); 3001 } 3002 3003 void 3004 tlp_pnic_nway_statchg(self) 3005 struct device *self; 3006 { 3007 struct tulip_softc *sc = (struct tulip_softc *)self; 3008 3009 /* Idle the transmit and receive processes. */ 3010 tlp_idle(sc, OPMODE_ST|OPMODE_SR); 3011 3012 /* 3013 * XXX What about Heartbeat Disable? Is it magically frobbed 3014 * XXX by the PHY? I hope so... 3015 */ 3016 3017 sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD|OPMODE_PS|OPMODE_PCS| 3018 OPMODE_SCR); 3019 3020 if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T) { 3021 sc->sc_opmode |= OPMODE_TTM; 3022 TULIP_WRITE(sc, CSR_GPP, 3023 GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 0) | 3024 GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1)); 3025 } else { 3026 sc->sc_opmode |= OPMODE_PS|OPMODE_PCS|OPMODE_SCR; 3027 TULIP_WRITE(sc, CSR_GPP, 3028 GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 1) | 3029 GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1)); 3030 } 3031 3032 if (sc->sc_mii.mii_media_active & IFM_FDX) 3033 sc->sc_opmode |= OPMODE_FD; 3034 3035 /* 3036 * Write new OPMODE bits. This also restarts the transmit 3037 * and receive processes. 3038 */ 3039 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 3040 3041 /* XXX Update ifp->if_baudrate */ 3042 } 3043 3044 void 3045 tlp_pnic_nway_tick(arg) 3046 void *arg; 3047 { 3048 struct tulip_softc *sc = arg; 3049 int s; 3050 3051 s = splnet(); 3052 tlp_pnic_nway_service(sc, MII_TICK); 3053 splx(s); 3054 3055 timeout(tlp_pnic_nway_tick, sc, hz); 3056 } 3057 3058 /* 3059 * Support for the Lite-On PNIC internal NWay block. This is constructed 3060 * somewhat like a PHY driver for simplicity. 3061 */ 3062 3063 int 3064 tlp_pnic_nway_service(sc, cmd) 3065 struct tulip_softc *sc; 3066 int cmd; 3067 { 3068 struct mii_data *mii = &sc->sc_mii; 3069 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 3070 3071 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 3072 return (0); 3073 3074 switch (cmd) { 3075 case MII_POLLSTAT: 3076 /* Nothing special to do here. */ 3077 break; 3078 3079 case MII_MEDIACHG: 3080 switch (IFM_SUBTYPE(ife->ifm_media)) { 3081 case IFM_AUTO: 3082 (void) tlp_pnic_nway_auto(sc, 1); 3083 break; 3084 case IFM_100_T4: 3085 /* 3086 * XXX Not supported as a manual setting right now. 3087 */ 3088 return (EINVAL); 3089 default: 3090 /* 3091 * NWAY register data is stored in the ifmedia entry. 3092 */ 3093 TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data); 3094 } 3095 break; 3096 3097 case MII_TICK: 3098 /* 3099 * Only used for autonegotiation. 3100 */ 3101 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 3102 return (0); 3103 3104 /* 3105 * Check to see if we have link. If we do, we don't 3106 * need to restart the autonegotiation process. 3107 */ 3108 if (sc->sc_flags & TULIPF_LINK_UP) 3109 return (0); 3110 3111 /* 3112 * Only retry autonegotiation every 5 seconds. 3113 */ 3114 if (++sc->sc_nway_ticks != 5) 3115 return (0); 3116 3117 sc->sc_nway_ticks = 0; 3118 tlp_pnic_nway_reset(sc); 3119 if (tlp_pnic_nway_auto(sc, 0) == EJUSTRETURN) 3120 return (0); 3121 break; 3122 } 3123 3124 /* Update the media status. */ 3125 tlp_pnic_nway_status(sc); 3126 3127 /* Callback if something changed. */ 3128 if (sc->sc_nway_active != mii->mii_media_active || 3129 cmd == MII_MEDIACHG) { 3130 (*sc->sc_statchg)(&sc->sc_dev); 3131 sc->sc_nway_active = mii->mii_media_active; 3132 } 3133 return (0); 3134 } 3135 3136 void 3137 tlp_pnic_nway_reset(sc) 3138 struct tulip_softc *sc; 3139 { 3140 3141 TULIP_WRITE(sc, CSR_PNIC_NWAY, PNIC_NWAY_RS); 3142 delay(100); 3143 TULIP_WRITE(sc, CSR_PNIC_NWAY, 0); 3144 } 3145 3146 int 3147 tlp_pnic_nway_auto(sc, waitfor) 3148 struct tulip_softc *sc; 3149 int waitfor; 3150 { 3151 struct mii_data *mii = &sc->sc_mii; 3152 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 3153 u_int32_t reg; 3154 int i; 3155 3156 if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0) 3157 TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data); 3158 3159 if (waitfor) { 3160 /* Wait 500ms for it to complete. */ 3161 for (i = 0; i < 500; i++) { 3162 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3163 if (reg & PNIC_NWAY_LPAR_MASK) { 3164 tlp_pnic_nway_acomp(sc); 3165 return (0); 3166 } 3167 delay(1000); 3168 } 3169 #if 0 3170 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) 3171 printf("%s: autonegotiation failed to complete\n", 3172 sc->sc_dev.dv_xname); 3173 #endif 3174 3175 /* 3176 * Don't need to worry about clearing DOINGAUTO. 3177 * If that's set, a timeout is pending, and it will 3178 * clear the flag. 3179 */ 3180 return (EIO); 3181 } 3182 3183 /* 3184 * Just let it finish asynchronously. This is for the benefit of 3185 * the tick handler driving autonegotiation. Don't want 500ms 3186 * delays all the time while the system is running! 3187 */ 3188 if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0) { 3189 sc->sc_flags |= TULIPF_DOINGAUTO; 3190 timeout(tlp_pnic_nway_auto_timeout, sc, hz >> 1); 3191 } 3192 return (EJUSTRETURN); 3193 } 3194 3195 void 3196 tlp_pnic_nway_auto_timeout(arg) 3197 void *arg; 3198 { 3199 struct tulip_softc *sc = arg; 3200 u_int32_t reg; 3201 int s; 3202 3203 s = splnet(); 3204 sc->sc_flags &= ~TULIPF_DOINGAUTO; 3205 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3206 #if 0 3207 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) 3208 printf("%s: autonegotiation failed to complete\n", 3209 sc->sc_dev.dv_xname); 3210 #endif 3211 3212 tlp_pnic_nway_acomp(sc); 3213 3214 /* Update the media status. */ 3215 (void) tlp_pnic_nway_service(sc, MII_POLLSTAT); 3216 splx(s); 3217 } 3218 3219 void 3220 tlp_pnic_nway_status(sc) 3221 struct tulip_softc *sc; 3222 { 3223 struct mii_data *mii = &sc->sc_mii; 3224 u_int32_t reg; 3225 3226 mii->mii_media_status = IFM_AVALID; 3227 mii->mii_media_active = IFM_ETHER; 3228 3229 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3230 3231 if (sc->sc_flags & TULIPF_LINK_UP) 3232 mii->mii_media_status |= IFM_ACTIVE; 3233 3234 if (reg & PNIC_NWAY_NW) { 3235 if ((reg & PNIC_NWAY_LPAR_MASK) == 0) { 3236 /* Erg, still trying, I guess... */ 3237 mii->mii_media_active |= IFM_NONE; 3238 return; 3239 } 3240 3241 #if 0 3242 if (reg & PNIC_NWAY_LPAR100T4) 3243 mii->mii_media_active |= IFM_100_T4; 3244 else 3245 #endif 3246 if (reg & PNIC_NWAY_LPAR100TXFDX) 3247 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 3248 else if (reg & PNIC_NWAY_LPAR100TX) 3249 mii->mii_media_active |= IFM_100_TX; 3250 else if (reg & PNIC_NWAY_LPAR10TFDX) 3251 mii->mii_media_active |= IFM_10_T|IFM_FDX; 3252 else if (reg & PNIC_NWAY_LPAR10T) 3253 mii->mii_media_active |= IFM_10_T; 3254 else 3255 mii->mii_media_active |= IFM_NONE; 3256 } else { 3257 if (reg & PNIC_NWAY_100) 3258 mii->mii_media_active |= IFM_100_TX; 3259 else 3260 mii->mii_media_active |= IFM_10_T; 3261 if (reg & PNIC_NWAY_FD) 3262 mii->mii_media_active |= IFM_FDX; 3263 } 3264 } 3265 3266 void 3267 tlp_pnic_nway_acomp(sc) 3268 struct tulip_softc *sc; 3269 { 3270 u_int32_t reg; 3271 3272 reg = TULIP_READ(sc, CSR_PNIC_NWAY); 3273 reg &= ~(PNIC_NWAY_FD|PNIC_NWAY_100|PNIC_NWAY_RN); 3274 3275 if (reg & (PNIC_NWAY_LPAR100TXFDX|PNIC_NWAY_LPAR100TX)) 3276 reg |= PNIC_NWAY_100; 3277 if (reg & (PNIC_NWAY_LPAR10TFDX|PNIC_NWAY_LPAR100TXFDX)) 3278 reg |= PNIC_NWAY_FD; 3279 3280 TULIP_WRITE(sc, CSR_PNIC_NWAY, reg); 3281 } 3282
Indexes created Thu Sep 25 16:09:42 GMT 2025