if_iy.c revision 1.21
1 /* $NetBSD: if_iy.c,v 1.21 1998/06/09 07:25:02 thorpej Exp $ */ 2 /* #define IYDEBUG */ 3 /* #define IYMEMDEBUG */ 4 /*- 5 * Copyright (c) 1996 Ignatios Souvatzis. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product contains software developed by Ignatios Souvatzis for 19 * the NetBSD project. 20 * 4. The names of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "bpfilter.h" 37 #include "rnd.h" 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/mbuf.h> 42 #include <sys/buf.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/ioctl.h> 46 #include <sys/errno.h> 47 #include <sys/syslog.h> 48 #include <sys/device.h> 49 #if NRND > 0 50 #include <sys/rnd.h> 51 #endif 52 53 #include <net/if.h> 54 #include <net/if_types.h> 55 #include <net/if_dl.h> 56 57 #include <net/if_ether.h> 58 59 #if NBPFILTER > 0 60 #include <net/bpf.h> 61 #include <net/bpfdesc.h> 62 #endif 63 64 #ifdef INET 65 #include <netinet/in.h> 66 #include <netinet/in_systm.h> 67 #include <netinet/in_var.h> 68 #include <netinet/ip.h> 69 #include <netinet/if_inarp.h> 70 #endif 71 72 #ifdef NS 73 #include <netns/ns.h> 74 #include <netns/ns_if.h> 75 #endif 76 77 #if defined(SIOCSIFMEDIA) 78 #include <net/if_media.h> 79 #endif 80 81 #include <vm/vm.h> 82 83 #include <machine/cpu.h> 84 #include <machine/bus.h> 85 #include <machine/intr.h> 86 87 #include <dev/isa/isareg.h> 88 #include <dev/isa/isavar.h> 89 #include <dev/ic/i82595reg.h> 90 91 #define ETHER_MIN_LEN (ETHERMIN + sizeof(struct ether_header) + 4) 92 #define ETHER_MAX_LEN (ETHERMTU + sizeof(struct ether_header) + 4) 93 94 /* 95 * Ethernet status, per interface. 96 */ 97 struct iy_softc { 98 struct device sc_dev; 99 void *sc_ih; 100 101 bus_space_tag_t sc_iot; 102 bus_space_handle_t sc_ioh; 103 104 struct ethercom sc_ethercom; 105 106 struct ifmedia iy_ifmedia; 107 int iy_media; 108 109 int mappedirq; 110 111 int hard_vers; 112 113 int promisc; 114 115 int sram, tx_size, rx_size; 116 117 int tx_start, tx_end, tx_last; 118 int rx_start; 119 120 #ifdef IYDEBUG 121 int sc_debug; 122 #endif 123 124 #if NRND > 0 125 rndsource_element_t rnd_source; 126 #endif 127 }; 128 129 void iywatchdog __P((struct ifnet *)); 130 int iyioctl __P((struct ifnet *, u_long, caddr_t)); 131 int iyintr __P((void *)); 132 void iyinit __P((struct iy_softc *)); 133 void iystop __P((struct iy_softc *)); 134 void iystart __P((struct ifnet *)); 135 136 void iy_intr_rx __P((struct iy_softc *)); 137 void iy_intr_tx __P((struct iy_softc *)); 138 139 void iyreset __P((struct iy_softc *)); 140 void iy_readframe __P((struct iy_softc *, int)); 141 void iy_drop_packet_buffer __P((struct iy_softc *)); 142 void iy_find_mem_size __P((struct iy_softc *)); 143 void iyrint __P((struct iy_softc *)); 144 void iytint __P((struct iy_softc *)); 145 void iyxmit __P((struct iy_softc *)); 146 void iyget __P((struct iy_softc *, bus_space_tag_t, bus_space_handle_t, int)); 147 void iyprobemem __P((struct iy_softc *)); 148 static __inline void eepromwritebit __P((bus_space_tag_t, bus_space_handle_t, 149 int)); 150 static __inline int eepromreadbit __P((bus_space_tag_t, bus_space_handle_t)); 151 /* 152 * void iymeminit __P((void *, struct iy_softc *)); 153 * static int iy_mc_setup __P((struct iy_softc *, void *)); 154 * static void iy_mc_reset __P((struct iy_softc *)); 155 */ 156 #ifdef IYDEBUGX 157 void print_rbd __P((volatile struct iy_recv_buf_desc *)); 158 159 int in_ifrint = 0; 160 int in_iftint = 0; 161 #endif 162 163 int iy_mediachange __P((struct ifnet *)); 164 void iy_mediastatus __P((struct ifnet *, struct ifmediareq *)); 165 166 int iyprobe __P((struct device *, struct cfdata *, void *)); 167 void iyattach __P((struct device *, struct device *, void *)); 168 169 static u_int16_t eepromread __P((bus_space_tag_t, bus_space_handle_t, int)); 170 171 static int eepromreadall __P((bus_space_tag_t, bus_space_handle_t, u_int16_t *, 172 int)); 173 174 struct cfattach iy_ca = { 175 sizeof(struct iy_softc), iyprobe, iyattach 176 }; 177 178 static u_int8_t eepro_irqmap[] = EEPP_INTMAP; 179 static u_int8_t eepro_revirqmap[] = EEPP_RINTMAP; 180 181 int 182 iyprobe(parent, match, aux) 183 struct device *parent; 184 struct cfdata *match; 185 void *aux; 186 { 187 struct isa_attach_args *ia = aux; 188 u_int16_t eaddr[8]; 189 190 bus_space_tag_t iot; 191 bus_space_handle_t ioh; 192 193 u_int8_t c, d; 194 195 iot = ia->ia_iot; 196 197 if (ia->ia_iobase == IOBASEUNK) 198 return 0; 199 200 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) 201 return 0; 202 203 /* try to find the round robin sig: */ 204 205 c = bus_space_read_1(iot, ioh, ID_REG); 206 if ((c & ID_REG_MASK) != ID_REG_SIG) 207 goto out; 208 209 d = bus_space_read_1(iot, ioh, ID_REG); 210 if ((d & ID_REG_MASK) != ID_REG_SIG) 211 goto out; 212 213 if (((d-c) & R_ROBIN_BITS) != 0x40) 214 goto out; 215 216 d = bus_space_read_1(iot, ioh, ID_REG); 217 if ((d & ID_REG_MASK) != ID_REG_SIG) 218 goto out; 219 220 if (((d-c) & R_ROBIN_BITS) != 0x80) 221 goto out; 222 223 d = bus_space_read_1(iot, ioh, ID_REG); 224 if ((d & ID_REG_MASK) != ID_REG_SIG) 225 goto out; 226 227 if (((d-c) & R_ROBIN_BITS) != 0xC0) 228 goto out; 229 230 d = bus_space_read_1(iot, ioh, ID_REG); 231 if ((d & ID_REG_MASK) != ID_REG_SIG) 232 goto out; 233 234 if (((d-c) & R_ROBIN_BITS) != 0x00) 235 goto out; 236 237 #ifdef IYDEBUG 238 printf("iyprobe verified working ID reg.\n"); 239 #endif 240 241 if (eepromreadall(iot, ioh, eaddr, 8)) 242 goto out; 243 244 if (ia->ia_irq == IRQUNK) 245 ia->ia_irq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 246 247 if (ia->ia_irq >= sizeof(eepro_revirqmap)) 248 goto out; 249 250 if (eepro_revirqmap[ia->ia_irq] == 0xff) 251 goto out; 252 253 /* now lets reset the chip */ 254 255 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 256 delay(200); 257 258 ia->ia_iosize = 16; 259 260 bus_space_unmap(iot, ioh, 16); 261 return 1; /* found */ 262 out: 263 bus_space_unmap(iot, ioh, 16); 264 return 0; 265 } 266 267 void 268 iyattach(parent, self, aux) 269 struct device *parent, *self; 270 void *aux; 271 { 272 struct iy_softc *sc = (void *)self; 273 struct isa_attach_args *ia = aux; 274 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 275 bus_space_tag_t iot; 276 bus_space_handle_t ioh; 277 unsigned temp; 278 u_int16_t eaddr[8]; 279 u_int8_t myaddr[ETHER_ADDR_LEN]; 280 int eirq; 281 282 iot = ia->ia_iot; 283 284 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) { 285 printf(": can't map i/o space\n"); 286 return; 287 } 288 289 sc->sc_iot = iot; 290 sc->sc_ioh = ioh; 291 292 sc->mappedirq = eepro_revirqmap[ia->ia_irq]; 293 294 /* now let's reset the chip */ 295 296 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 297 delay(200); 298 299 iyprobemem(sc); 300 301 bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); 302 ifp->if_softc = sc; 303 ifp->if_start = iystart; 304 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 305 /* XXX todo: | IFF_MULTICAST */ 306 307 ifp->if_ioctl = iyioctl; 308 ifp->if_watchdog = iywatchdog; 309 310 (void)eepromreadall(iot, ioh, eaddr, 8); 311 sc->hard_vers = eaddr[EEPW6] & EEPP_BoardRev; 312 313 #ifdef DIAGNOSTICS 314 if ((eaddr[EEPPEther0] != 315 eepromread(iot, ioh, EEPPEther0a)) && 316 (eaddr[EEPPEther1] != 317 eepromread(iot, ioh, EEPPEther1a)) && 318 (eaddr[EEPPEther2] != 319 eepromread(iot, ioh, EEPPEther2a))) 320 321 printf("EEPROM Ethernet address differs from copy\n"); 322 #endif 323 324 myaddr[1] = eaddr[EEPPEther0] & 0xFF; 325 myaddr[0] = eaddr[EEPPEther0] >> 8; 326 myaddr[3] = eaddr[EEPPEther1] & 0xFF; 327 myaddr[2] = eaddr[EEPPEther1] >> 8; 328 myaddr[5] = eaddr[EEPPEther2] & 0xFF; 329 myaddr[4] = eaddr[EEPPEther2] >> 8; 330 331 ifmedia_init(&sc->iy_ifmedia, 0, iy_mediachange, iy_mediastatus); 332 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_2, 0, NULL); 333 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL); 334 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 335 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 336 ifmedia_set(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO); 337 /* Attach the interface. */ 338 if_attach(ifp); 339 ether_ifattach(ifp, myaddr); 340 printf(": address %s, rev. %d, %d kB\n", 341 ether_sprintf(myaddr), 342 sc->hard_vers, sc->sram/1024); 343 344 eirq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 345 if (eirq != ia->ia_irq) 346 printf("%s: EEPROM irq setting %d ignored\n", 347 sc->sc_dev.dv_xname, eirq); 348 349 #if NBPFILTER > 0 350 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); 351 #endif 352 353 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 354 IPL_NET, iyintr, sc); 355 356 #if NRND > 0 357 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, RND_TYPE_NET); 358 #endif 359 360 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 361 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 362 } 363 364 void 365 iystop(sc) 366 struct iy_softc *sc; 367 { 368 bus_space_tag_t iot; 369 bus_space_handle_t ioh; 370 #ifdef IYDEBUG 371 u_int p, v; 372 #endif 373 374 iot = sc->sc_iot; 375 ioh = sc->sc_ioh; 376 377 bus_space_write_1(iot, ioh, COMMAND_REG, RCV_DISABLE_CMD); 378 379 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 380 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); 381 382 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 383 delay(200); 384 #ifdef IYDEBUG 385 printf("%s: dumping tx chain (st 0x%x end 0x%x last 0x%x)\n", 386 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 387 p = sc->tx_last; 388 if (!p) 389 p = sc->tx_start; 390 do { 391 bus_space_write_2(iot, ioh, HOST_ADDR_REG, p); 392 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 393 printf("0x%04x: %b ", p, v, "\020\006Ab\010Dn"); 394 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 395 printf("0x%b", v, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL"); 396 p = bus_space_read_2(iot, ioh, MEM_PORT_REG); 397 printf(" 0x%04x", p); 398 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 399 printf(" 0x%b\n", v, "\020\020Ch"); 400 401 } while (v & 0x8000); 402 #endif 403 sc->tx_start = sc->tx_end = sc->rx_size; 404 sc->tx_last = 0; 405 sc->sc_ethercom.ec_if.if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 406 } 407 408 void 409 iyreset(sc) 410 struct iy_softc *sc; 411 { 412 int s; 413 s = splimp(); 414 iystop(sc); 415 iyinit(sc); 416 splx(s); 417 } 418 419 void 420 iyinit(sc) 421 struct iy_softc *sc; 422 { 423 int i; 424 unsigned temp; 425 struct ifnet *ifp; 426 bus_space_tag_t iot; 427 bus_space_handle_t ioh; 428 429 iot = sc->sc_iot; 430 ioh = sc->sc_ioh; 431 432 ifp = &sc->sc_ethercom.ec_if; 433 #ifdef IYDEBUG 434 printf("ifp is %p\n", ifp); 435 #endif 436 437 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 438 439 temp = bus_space_read_1(iot, ioh, EEPROM_REG); 440 if (temp & 0x10) 441 bus_space_write_1(iot, ioh, EEPROM_REG, temp & ~0x10); 442 443 for (i=0; i<6; ++i) { 444 bus_space_write_1(iot, ioh, I_ADD(i), LLADDR(ifp->if_sadl)[i]); 445 } 446 447 temp = bus_space_read_1(iot, ioh, REG1); 448 bus_space_write_1(iot, ioh, REG1, 449 temp | XMT_CHAIN_INT | XMT_CHAIN_ERRSTOP | RCV_DISCARD_BAD); 450 451 temp = bus_space_read_1(iot, ioh, RECV_MODES_REG); 452 bus_space_write_1(iot, ioh, RECV_MODES_REG, temp | MATCH_BRDCST); 453 #ifdef IYDEBUG 454 printf("%s: RECV_MODES were %b set to %b\n", 455 sc->sc_dev.dv_xname, 456 temp, "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA", 457 temp|MATCH_BRDCST, 458 "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA"); 459 #endif 460 461 462 delay(500000); /* for the hardware to test for the connector */ 463 464 temp = bus_space_read_1(iot, ioh, MEDIA_SELECT); 465 #ifdef IYDEBUG 466 printf("%s: media select was 0x%b ", sc->sc_dev.dv_xname, 467 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 468 #endif 469 temp = (temp & TEST_MODE_MASK); 470 471 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 472 case IFM_10_5: 473 temp &= ~ (BNC_BIT | TPE_BIT); 474 break; 475 476 case IFM_10_2: 477 temp = (temp & ~TPE_BIT) | BNC_BIT; 478 break; 479 480 case IFM_10_T: 481 temp = (temp & ~BNC_BIT) | TPE_BIT; 482 break; 483 default: 484 /* nothing; leave as it is */ 485 } 486 switch (temp & (BNC_BIT | TPE_BIT)) { 487 case BNC_BIT: 488 sc->iy_media = IFM_ETHER | IFM_10_2; 489 break; 490 case TPE_BIT: 491 sc->iy_media = IFM_ETHER | IFM_10_T; 492 break; 493 default: 494 sc->iy_media = IFM_ETHER | IFM_10_5; 495 } 496 497 bus_space_write_1(iot, ioh, MEDIA_SELECT, temp); 498 #ifdef IYDEBUG 499 printf("changed to 0x%b\n", 500 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 501 #endif 502 503 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 504 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 505 bus_space_write_1(iot, ioh, 0, BANK_SEL(1)); 506 507 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 508 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 509 510 #ifdef IYDEBUG 511 printf("%s: int no was %b\n", sc->sc_dev.dv_xname, 512 temp, "\020\4bad_irq\010flash/boot present"); 513 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 514 printf("%s: int no now 0x%02x\n", sc->sc_dev.dv_xname, 515 temp, "\020\4BAD IRQ\010flash/boot present"); 516 #endif 517 518 519 bus_space_write_1(iot, ioh, RCV_LOWER_LIMIT_REG, 0); 520 bus_space_write_1(iot, ioh, RCV_UPPER_LIMIT_REG, (sc->rx_size - 2) >> 8); 521 bus_space_write_1(iot, ioh, XMT_LOWER_LIMIT_REG, sc->rx_size >> 8); 522 bus_space_write_1(iot, ioh, XMT_UPPER_LIMIT_REG, sc->sram >> 8); 523 524 temp = bus_space_read_1(iot, ioh, REG1); 525 #ifdef IYDEBUG 526 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 527 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 528 #endif 529 bus_space_write_1(iot, ioh, REG1, temp | INT_ENABLE); /* XXX what about WORD_WIDTH? */ 530 531 #ifdef IYDEBUG 532 temp = bus_space_read_1(iot, ioh, REG1); 533 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 534 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 535 #endif 536 537 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 538 539 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS & ~(RX_BIT|TX_BIT)); 540 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); /* clear ints */ 541 542 bus_space_write_2(iot, ioh, RCV_START_LOW, 0); 543 bus_space_write_2(iot, ioh, RCV_STOP_LOW, sc->rx_size - 2); 544 sc->rx_start = 0; 545 546 bus_space_write_1(iot, ioh, 0, SEL_RESET_CMD); 547 delay(200); 548 549 bus_space_write_2(iot, ioh, XMT_ADDR_REG, sc->rx_size); 550 551 sc->tx_start = sc->tx_end = sc->rx_size; 552 sc->tx_last = 0; 553 554 bus_space_write_1(iot, ioh, 0, RCV_ENABLE_CMD); 555 556 ifp->if_flags |= IFF_RUNNING; 557 ifp->if_flags &= ~IFF_OACTIVE; 558 } 559 560 void 561 iystart(ifp) 562 struct ifnet *ifp; 563 { 564 struct iy_softc *sc; 565 566 567 struct mbuf *m0, *m; 568 u_int len, pad, last, end; 569 u_int llen, residual; 570 int avail; 571 caddr_t data; 572 u_int16_t resval, stat; 573 bus_space_tag_t iot; 574 bus_space_handle_t ioh; 575 576 #ifdef IYDEBUG 577 printf("iystart called\n"); 578 #endif 579 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 580 return; 581 582 sc = ifp->if_softc; 583 iot = sc->sc_iot; 584 ioh = sc->sc_ioh; 585 586 while ((m0 = ifp->if_snd.ifq_head) != NULL) { 587 #ifdef IYDEBUG 588 printf("%s: trying to write another packet to the hardware\n", 589 sc->sc_dev.dv_xname); 590 #endif 591 592 /* We need to use m->m_pkthdr.len, so require the header */ 593 if ((m0->m_flags & M_PKTHDR) == 0) 594 panic("iystart: no header mbuf"); 595 596 len = m0->m_pkthdr.len; 597 pad = len & 1; 598 599 #ifdef IYDEBUG 600 printf("%s: length is %d.\n", sc->sc_dev.dv_xname, len); 601 #endif 602 if (len < ETHER_MIN_LEN) { 603 pad = ETHER_MIN_LEN - len; 604 } 605 606 if (len + pad > ETHER_MAX_LEN) { 607 /* packet is obviously too large: toss it */ 608 ++ifp->if_oerrors; 609 IF_DEQUEUE(&ifp->if_snd, m0); 610 m_freem(m0); 611 continue; 612 } 613 614 #if NBPFILTER > 0 615 if (ifp->if_bpf) 616 bpf_mtap(ifp->if_bpf, m0); 617 #endif 618 619 avail = sc->tx_start - sc->tx_end; 620 if (avail <= 0) 621 avail += sc->tx_size; 622 623 #ifdef IYDEBUG 624 printf("%s: avail is %d.\n", sc->sc_dev.dv_xname, avail); 625 #endif 626 /* 627 * we MUST RUN at splnet here --- 628 * XXX todo: or even turn off the boards ints ??? hm... 629 */ 630 631 /* See if there is room to put another packet in the buffer. */ 632 633 if ((len+pad+2*I595_XMT_HDRLEN) > avail) { 634 #ifdef IYDEBUG 635 printf("%s: len = %d, avail = %d, setting OACTIVE\n", 636 sc->sc_dev.dv_xname, len, avail); 637 #endif 638 ifp->if_flags |= IFF_OACTIVE; 639 return; 640 } 641 642 /* we know it fits in the hardware now, so dequeue it */ 643 IF_DEQUEUE(&ifp->if_snd, m0); 644 645 last = sc->tx_end; 646 end = last + pad + len + I595_XMT_HDRLEN; 647 648 if (end >= sc->sram) { 649 if ((sc->sram - last) <= I595_XMT_HDRLEN) { 650 /* keep header in one piece */ 651 last = sc->rx_size; 652 end = last + pad + len + I595_XMT_HDRLEN; 653 } else 654 end -= sc->tx_size; 655 } 656 657 bus_space_write_2(iot, ioh, HOST_ADDR_REG, last); 658 bus_space_write_2(iot, ioh, MEM_PORT_REG, XMT_CMD); 659 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 660 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 661 bus_space_write_2(iot, ioh, MEM_PORT_REG, len + pad); 662 663 residual = resval = 0; 664 665 while ((m = m0)!=0) { 666 data = mtod(m, caddr_t); 667 llen = m->m_len; 668 if (residual) { 669 #ifdef IYDEBUG 670 printf("%s: merging residual with next mbuf.\n", 671 sc->sc_dev.dv_xname); 672 #endif 673 resval |= *data << 8; 674 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 675 --llen; 676 ++data; 677 } 678 if (llen > 1) 679 bus_space_write_multi_2(iot, ioh, MEM_PORT_REG, 680 data, llen>>1); 681 residual = llen & 1; 682 if (residual) { 683 resval = *(data + llen - 1); 684 #ifdef IYDEBUG 685 printf("%s: got odd mbuf to send.\n", 686 sc->sc_dev.dv_xname); 687 #endif 688 } 689 690 MFREE(m, m0); 691 } 692 693 if (residual) 694 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 695 696 pad >>= 1; 697 while (pad-- > 0) 698 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 699 700 #ifdef IYDEBUG 701 printf("%s: new last = 0x%x, end = 0x%x.\n", 702 sc->sc_dev.dv_xname, last, end); 703 printf("%s: old start = 0x%x, end = 0x%x, last = 0x%x\n", 704 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 705 #endif 706 707 if (sc->tx_start != sc->tx_end) { 708 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_COUNT); 709 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); 710 711 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_CHAIN); 712 bus_space_write_2(iot, ioh, MEM_PORT_REG, last); 713 bus_space_write_2(iot, ioh, MEM_PORT_REG, stat | CHAIN); 714 #ifdef IYDEBUG 715 printf("%s: setting 0x%x to 0x%x\n", 716 sc->sc_dev.dv_xname, sc->tx_last + XMT_COUNT, 717 stat | CHAIN); 718 #endif 719 } 720 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); /* dummy read */ 721 722 /* XXX todo: enable ints here if disabled */ 723 724 ++ifp->if_opackets; 725 726 if (sc->tx_start == sc->tx_end) { 727 bus_space_write_2(iot, ioh, XMT_ADDR_REG, last); 728 bus_space_write_1(iot, ioh, 0, XMT_CMD); 729 sc->tx_start = last; 730 #ifdef IYDEBUG 731 printf("%s: writing 0x%x to XAR and giving XCMD\n", 732 sc->sc_dev.dv_xname, last); 733 #endif 734 } else { 735 bus_space_write_1(iot, ioh, 0, RESUME_XMT_CMD); 736 #ifdef IYDEBUG 737 printf("%s: giving RESUME_XCMD\n", 738 sc->sc_dev.dv_xname); 739 #endif 740 } 741 sc->tx_last = last; 742 sc->tx_end = end; 743 } 744 } 745 746 747 static __inline void 748 eepromwritebit(iot, ioh, what) 749 bus_space_tag_t iot; 750 bus_space_handle_t ioh; 751 int what; 752 { 753 bus_space_write_1(iot, ioh, EEPROM_REG, what); 754 delay(1); 755 bus_space_write_1(iot, ioh, EEPROM_REG, what|EESK); 756 delay(1); 757 bus_space_write_1(iot, ioh, EEPROM_REG, what); 758 delay(1); 759 } 760 761 static __inline int 762 eepromreadbit(iot, ioh) 763 bus_space_tag_t iot; 764 bus_space_handle_t ioh; 765 { 766 int b; 767 768 bus_space_write_1(iot, ioh, EEPROM_REG, EECS|EESK); 769 delay(1); 770 b = bus_space_read_1(iot, ioh, EEPROM_REG); 771 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); 772 delay(1); 773 774 return ((b & EEDO) != 0); 775 } 776 777 static u_int16_t 778 eepromread(iot, ioh, offset) 779 bus_space_tag_t iot; 780 bus_space_handle_t ioh; 781 int offset; 782 { 783 volatile int i; 784 volatile int j; 785 volatile u_int16_t readval; 786 787 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 788 delay(1); 789 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); /* XXXX??? */ 790 delay(1); 791 792 eepromwritebit(iot, ioh, EECS|EEDI); 793 eepromwritebit(iot, ioh, EECS|EEDI); 794 eepromwritebit(iot, ioh, EECS); 795 796 for (j=5; j>=0; --j) { 797 if ((offset>>j) & 1) 798 eepromwritebit(iot, ioh, EECS|EEDI); 799 else 800 eepromwritebit(iot, ioh, EECS); 801 } 802 803 for (readval=0, i=0; i<16; ++i) { 804 readval<<=1; 805 readval |= eepromreadbit(iot, ioh); 806 } 807 808 bus_space_write_1(iot, ioh, EEPROM_REG, 0|EESK); 809 delay(1); 810 bus_space_write_1(iot, ioh, EEPROM_REG, 0); 811 812 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 813 814 return readval; 815 } 816 817 /* 818 * Device timeout/watchdog routine. Entered if the device neglects to generate 819 * an interrupt after a transmit has been started on it. 820 */ 821 void 822 iywatchdog(ifp) 823 struct ifnet *ifp; 824 { 825 struct iy_softc *sc = ifp->if_softc; 826 827 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 828 ++sc->sc_ethercom.ec_if.if_oerrors; 829 iyreset(sc); 830 } 831 832 /* 833 * What to do upon receipt of an interrupt. 834 */ 835 int 836 iyintr(arg) 837 void *arg; 838 { 839 struct iy_softc *sc = arg; 840 bus_space_tag_t iot; 841 bus_space_handle_t ioh; 842 843 register u_short status; 844 845 iot = sc->sc_iot; 846 ioh = sc->sc_ioh; 847 848 status = bus_space_read_1(iot, ioh, STATUS_REG); 849 #ifdef IYDEBUG 850 if (status & ALL_INTS) { 851 printf("%s: got interupt %b", sc->sc_dev.dv_xname, status, 852 "\020\1RX_STP\2RX\3TX\4EXEC"); 853 if (status & EXEC_INT) 854 printf(" event %b\n", bus_space_read_1(iot, ioh, 0), 855 "\020\6ABORT"); 856 else 857 printf("\n"); 858 } 859 #endif 860 if (((status & (RX_INT | TX_INT)) == 0)) 861 return 0; 862 863 if (status & RX_INT) { 864 iy_intr_rx(sc); 865 bus_space_write_1(iot, ioh, STATUS_REG, RX_INT); 866 } else if (status & TX_INT) { 867 iy_intr_tx(sc); 868 bus_space_write_1(iot, ioh, STATUS_REG, TX_INT); 869 } 870 871 #if NRND > 0 872 rnd_add_uint32(&sc->rnd_source, status); 873 #endif 874 875 return 1; 876 } 877 878 void 879 iyget(sc, iot, ioh, rxlen) 880 struct iy_softc *sc; 881 bus_space_tag_t iot; 882 bus_space_handle_t ioh; 883 int rxlen; 884 { 885 struct mbuf *m, *top, **mp; 886 struct ether_header *eh; 887 struct ifnet *ifp; 888 int len; 889 890 ifp = &sc->sc_ethercom.ec_if; 891 892 MGETHDR(m, M_DONTWAIT, MT_DATA); 893 if (m == 0) 894 goto dropped; 895 m->m_pkthdr.rcvif = ifp; 896 m->m_pkthdr.len = rxlen; 897 len = MHLEN; 898 top = 0; 899 mp = ⊤ 900 901 while (rxlen > 0) { 902 if (top) { 903 MGET(m, M_DONTWAIT, MT_DATA); 904 if (m == 0) { 905 m_freem(top); 906 goto dropped; 907 } 908 len = MLEN; 909 } 910 if (rxlen >= MINCLSIZE) { 911 MCLGET(m, M_DONTWAIT); 912 if ((m->m_flags & M_EXT) == 0) { 913 m_free(m); 914 m_freem(top); 915 goto dropped; 916 } 917 len = MCLBYTES; 918 } 919 len = min(rxlen, len); 920 if (len > 1) { 921 len &= ~1; 922 923 bus_space_read_multi_2(iot, ioh, MEM_PORT_REG, 924 mtod(m, caddr_t), len/2); 925 } else { 926 #ifdef IYDEBUG 927 printf("%s: received odd mbuf\n", sc->sc_dev.dv_xname); 928 #endif 929 *(mtod(m, caddr_t)) = bus_space_read_2(iot, ioh, 930 MEM_PORT_REG); 931 } 932 m->m_len = len; 933 rxlen -= len; 934 *mp = m; 935 mp = &m->m_next; 936 } 937 /* XXX receive the top here */ 938 ++ifp->if_ipackets; 939 940 eh = mtod(top, struct ether_header *); 941 942 #if NBPFILTER > 0 943 if (ifp->if_bpf) { 944 bpf_mtap(ifp->if_bpf, top); 945 if ((ifp->if_flags & IFF_PROMISC) && 946 (eh->ether_dhost[0] & 1) == 0 && 947 bcmp(eh->ether_dhost, 948 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 949 sizeof(eh->ether_dhost)) != 0) { 950 951 m_freem(top); 952 return; 953 } 954 } 955 #endif 956 m_adj(top, sizeof(struct ether_header)); 957 ether_input(ifp, eh, top); 958 return; 959 960 dropped: 961 ++ifp->if_ierrors; 962 return; 963 } 964 void 965 iy_intr_rx(sc) 966 struct iy_softc *sc; 967 { 968 struct ifnet *ifp; 969 bus_space_tag_t iot; 970 bus_space_handle_t ioh; 971 972 u_int rxadrs, rxevnt, rxstatus, rxnext, rxlen; 973 974 iot = sc->sc_iot; 975 ioh = sc->sc_ioh; 976 ifp = &sc->sc_ethercom.ec_if; 977 978 rxadrs = sc->rx_start; 979 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxadrs); 980 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 981 rxnext = 0; 982 983 while (rxevnt == RCV_DONE) { 984 rxstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 985 rxnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 986 rxlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 987 #ifdef IYDEBUG 988 printf("%s: pck at 0x%04x stat %b next 0x%x len 0x%x\n", 989 sc->sc_dev.dv_xname, rxadrs, rxstatus, 990 "\020\1RCLD\2IA_MCH\010SHORT\011OVRN\013ALGERR" 991 "\014CRCERR\015LENERR\016RCVOK\020TYP", 992 rxnext, rxlen); 993 #endif 994 iyget(sc, iot, ioh, rxlen); 995 996 /* move stop address */ 997 bus_space_write_2(iot, ioh, RCV_STOP_LOW, 998 rxnext == 0 ? sc->rx_size - 2 : rxnext - 2); 999 1000 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxnext); 1001 rxadrs = rxnext; 1002 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1003 } 1004 sc->rx_start = rxnext; 1005 } 1006 1007 void 1008 iy_intr_tx(sc) 1009 struct iy_softc *sc; 1010 { 1011 bus_space_tag_t iot; 1012 bus_space_handle_t ioh; 1013 struct ifnet *ifp; 1014 u_int txstatus, txstat2, txlen, txnext; 1015 1016 ifp = &sc->sc_ethercom.ec_if; 1017 iot = sc->sc_iot; 1018 ioh = sc->sc_ioh; 1019 1020 while (sc->tx_start != sc->tx_end) { 1021 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_start); 1022 txstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1023 if ((txstatus & (TX_DONE|CMD_MASK)) != (TX_DONE|XMT_CMD)) 1024 break; 1025 1026 txstat2 = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1027 txnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1028 txlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1029 #ifdef IYDEBUG 1030 printf("txstat 0x%x stat2 0x%b next 0x%x len 0x%x\n", 1031 txstatus, txstat2, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF" 1032 "\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL", 1033 txnext, txlen); 1034 #endif 1035 if (txlen & CHAIN) 1036 sc->tx_start = txnext; 1037 else 1038 sc->tx_start = sc->tx_end; 1039 ifp->if_flags &= ~IFF_OACTIVE; 1040 1041 if ((txstat2 & 0x2000) == 0) 1042 ++ifp->if_oerrors; 1043 if (txstat2 & 0x000f) 1044 ifp->if_oerrors += txstat2 & 0x000f; 1045 } 1046 ifp->if_flags &= ~IFF_OACTIVE; 1047 } 1048 1049 #if 0 1050 /* 1051 * Compare two Ether/802 addresses for equality, inlined and unrolled for 1052 * speed. I'd love to have an inline assembler version of this... 1053 */ 1054 static inline int 1055 ether_equal(one, two) 1056 u_char *one, *two; 1057 { 1058 1059 if (one[0] != two[0] || one[1] != two[1] || one[2] != two[2] || 1060 one[3] != two[3] || one[4] != two[4] || one[5] != two[5]) 1061 return 0; 1062 return 1; 1063 } 1064 1065 /* 1066 * Check for a valid address. to_bpf is filled in with one of the following: 1067 * 0 -> BPF doesn't get this packet 1068 * 1 -> BPF does get this packet 1069 * 2 -> BPF does get this packet, but we don't 1070 * Return value is true if the packet is for us, and false otherwise. 1071 * 1072 * This routine is a mess, but it's also critical that it be as fast 1073 * as possible. It could be made cleaner if we can assume that the 1074 * only client which will fiddle with IFF_PROMISC is BPF. This is 1075 * probably a good assumption, but we do not make it here. (Yet.) 1076 */ 1077 static inline int 1078 check_eh(sc, eh, to_bpf) 1079 struct iy_softc *sc; 1080 struct ether_header *eh; 1081 int *to_bpf; 1082 { 1083 int i; 1084 1085 switch (sc->promisc) { 1086 case IFF_ALLMULTI: 1087 /* 1088 * Receiving all multicasts, but no unicasts except those 1089 * destined for us. 1090 */ 1091 #if NBPFILTER > 0 1092 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); /* BPF gets this packet if anybody cares */ 1093 #endif 1094 if (eh->ether_dhost[0] & 1) 1095 return 1; 1096 if (ether_equal(eh->ether_dhost, 1097 LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1098 return 1; 1099 return 0; 1100 1101 case IFF_PROMISC: 1102 /* 1103 * Receiving all packets. These need to be passed on to BPF. 1104 */ 1105 #if NBPFILTER > 0 1106 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1107 #endif 1108 /* If for us, accept and hand up to BPF */ 1109 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1110 return 1; 1111 1112 #if NBPFILTER > 0 1113 if (*to_bpf) 1114 *to_bpf = 2; /* we don't need to see it */ 1115 #endif 1116 1117 /* 1118 * Not a multicast, so BPF wants to see it but we don't. 1119 */ 1120 if (!(eh->ether_dhost[0] & 1)) 1121 return 1; 1122 1123 /* 1124 * If it's one of our multicast groups, accept it and pass it 1125 * up. 1126 */ 1127 for (i = 0; i < sc->mcast_count; i++) { 1128 if (ether_equal(eh->ether_dhost, (u_char *)&sc->mcast_addrs[i])) { 1129 #if NBPFILTER > 0 1130 if (*to_bpf) 1131 *to_bpf = 1; 1132 #endif 1133 return 1; 1134 } 1135 } 1136 return 1; 1137 1138 case IFF_ALLMULTI | IFF_PROMISC: 1139 /* 1140 * Acting as a multicast router, and BPF running at the same 1141 * time. Whew! (Hope this is a fast machine...) 1142 */ 1143 #if NBPFILTER > 0 1144 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1145 #endif 1146 /* We want to see multicasts. */ 1147 if (eh->ether_dhost[0] & 1) 1148 return 1; 1149 1150 /* We want to see our own packets */ 1151 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1152 return 1; 1153 1154 /* Anything else goes to BPF but nothing else. */ 1155 #if NBPFILTER > 0 1156 if (*to_bpf) 1157 *to_bpf = 2; 1158 #endif 1159 return 1; 1160 1161 case 0: 1162 /* 1163 * Only accept unicast packets destined for us, or multicasts 1164 * for groups that we belong to. For now, we assume that the 1165 * '586 will only return packets that we asked it for. This 1166 * isn't strictly true (it uses hashing for the multicast 1167 * filter), but it will do in this case, and we want to get out 1168 * of here as quickly as possible. 1169 */ 1170 #if NBPFILTER > 0 1171 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1172 #endif 1173 return 1; 1174 } 1175 1176 #ifdef DIAGNOSTIC 1177 panic("check_eh: impossible"); 1178 #endif 1179 } 1180 #endif 1181 1182 int 1183 iyioctl(ifp, cmd, data) 1184 register struct ifnet *ifp; 1185 u_long cmd; 1186 caddr_t data; 1187 { 1188 struct iy_softc *sc; 1189 struct ifaddr *ifa; 1190 struct ifreq *ifr; 1191 int s, error = 0; 1192 1193 sc = ifp->if_softc; 1194 ifa = (struct ifaddr *)data; 1195 ifr = (struct ifreq *)data; 1196 1197 #ifdef IYDEBUG 1198 printf("iyioctl called with ifp 0x%p (%s) cmd 0x%x data 0x%p\n", 1199 ifp, ifp->if_xname, cmd, data); 1200 #endif 1201 1202 s = splimp(); 1203 1204 switch (cmd) { 1205 1206 case SIOCSIFADDR: 1207 ifp->if_flags |= IFF_UP; 1208 1209 switch (ifa->ifa_addr->sa_family) { 1210 #ifdef INET 1211 case AF_INET: 1212 iyinit(sc); 1213 arp_ifinit(ifp, ifa); 1214 break; 1215 #endif 1216 #ifdef NS 1217 /* XXX - This code is probably wrong. */ 1218 case AF_NS: 1219 { 1220 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1221 1222 if (ns_nullhost(*ina)) 1223 ina->x_host = *(union ns_host *) 1224 LLADDR(sc->sc_ethercom.ec_if.if_sadl); 1225 else 1226 bcopy(ina->x_host.c_host, 1227 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 1228 ETHER_ADDR_LEN); 1229 /* Set new address. */ 1230 iyinit(sc); 1231 break; 1232 } 1233 #endif /* NS */ 1234 default: 1235 iyinit(sc); 1236 break; 1237 } 1238 break; 1239 1240 case SIOCSIFFLAGS: 1241 sc->promisc = ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI); 1242 if ((ifp->if_flags & IFF_UP) == 0 && 1243 (ifp->if_flags & IFF_RUNNING) != 0) { 1244 /* 1245 * If interface is marked down and it is running, then 1246 * stop it. 1247 */ 1248 iystop(sc); 1249 ifp->if_flags &= ~IFF_RUNNING; 1250 } else if ((ifp->if_flags & IFF_UP) != 0 && 1251 (ifp->if_flags & IFF_RUNNING) == 0) { 1252 /* 1253 * If interface is marked up and it is stopped, then 1254 * start it. 1255 */ 1256 iyinit(sc); 1257 } else { 1258 /* 1259 * Reset the interface to pick up changes in any other 1260 * flags that affect hardware registers. 1261 */ 1262 iystop(sc); 1263 iyinit(sc); 1264 } 1265 #ifdef IYDEBUGX 1266 if (ifp->if_flags & IFF_DEBUG) 1267 sc->sc_debug = IFY_ALL; 1268 else 1269 sc->sc_debug = 0; 1270 #endif 1271 break; 1272 1273 #if 0 /* XXX */ 1274 case SIOCADDMULTI: 1275 case SIOCDELMULTI: 1276 error = (cmd == SIOCADDMULTI) ? 1277 ether_addmulti(ifr, &sc->sc_ethercom): 1278 ether_delmulti(ifr, &sc->sc_ethercom); 1279 1280 if (error == ENETRESET) { 1281 /* 1282 * Multicast list has changed; set the hardware filter 1283 * accordingly. 1284 */ 1285 iy_mc_reset(sc); /* XXX */ 1286 error = 0; 1287 } 1288 break; 1289 #endif 1290 case SIOCSIFMEDIA: 1291 case SIOCGIFMEDIA: 1292 error = ifmedia_ioctl(ifp, ifr, &sc->iy_ifmedia, cmd); 1293 break; 1294 default: 1295 error = EINVAL; 1296 } 1297 splx(s); 1298 return error; 1299 } 1300 1301 int 1302 iy_mediachange(ifp) 1303 struct ifnet *ifp; 1304 { 1305 struct iy_softc *sc = ifp->if_softc; 1306 1307 if (IFM_TYPE(sc->iy_ifmedia.ifm_media) != IFM_ETHER) 1308 return EINVAL; 1309 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 1310 case IFM_10_5: 1311 case IFM_10_2: 1312 case IFM_10_T: 1313 case IFM_AUTO: 1314 iystop(sc); 1315 iyinit(sc); 1316 return 0; 1317 default: 1318 return EINVAL; 1319 } 1320 } 1321 1322 void 1323 iy_mediastatus(ifp, ifmr) 1324 struct ifnet *ifp; 1325 struct ifmediareq *ifmr; 1326 { 1327 struct iy_softc *sc = ifp->if_softc; 1328 1329 ifmr->ifm_active = sc->iy_media; 1330 ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE; 1331 } 1332 1333 #if 0 1334 static void 1335 iy_mc_reset(sc) 1336 struct iy_softc *sc; 1337 { 1338 struct ether_multi *enm; 1339 struct ether_multistep step; 1340 1341 /* 1342 * Step through the list of addresses. 1343 */ 1344 sc->mcast_count = 0; 1345 ETHER_FIRST_MULTI(step, &sc->sc_ethercom, enm); 1346 while (enm) { 1347 if (sc->mcast_count >= MAXMCAST || 1348 bcmp(enm->enm_addrlo, enm->enm_addrhi, 6) != 0) { 1349 sc->sc_ethercom.ec_if.if_flags |= IFF_ALLMULTI; 1350 iyioctl(&sc->sc_ethercom.ec_if, SIOCSIFFLAGS, 1351 (void *)0); 1352 goto setflag; 1353 } 1354 1355 bcopy(enm->enm_addrlo, &sc->mcast_addrs[sc->mcast_count], 6); 1356 sc->mcast_count++; 1357 ETHER_NEXT_MULTI(step, enm); 1358 } 1359 setflag: 1360 sc->want_mcsetup = 1; 1361 } 1362 1363 #ifdef IYDEBUG 1364 void 1365 print_rbd(rbd) 1366 volatile struct ie_recv_buf_desc *rbd; 1367 { 1368 1369 printf("RBD at %08lx:\nactual %04x, next %04x, buffer %08x\n" 1370 "length %04x, mbz %04x\n", (u_long)rbd, rbd->ie_rbd_actual, 1371 rbd->ie_rbd_next, rbd->ie_rbd_buffer, rbd->ie_rbd_length, 1372 rbd->mbz); 1373 } 1374 #endif 1375 #endif 1376 1377 void 1378 iyprobemem(sc) 1379 struct iy_softc *sc; 1380 { 1381 bus_space_tag_t iot; 1382 bus_space_handle_t ioh; 1383 int testing; 1384 1385 iot = sc->sc_iot; 1386 ioh = sc->sc_ioh; 1387 1388 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 1389 delay(1); 1390 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 4096-2); 1391 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1392 1393 for (testing=65536; testing >= 4096; testing >>= 1) { 1394 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1395 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xdead); 1396 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1397 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xdead) { 1398 #ifdef IYMEMDEBUG 1399 printf("%s: Didn't keep 0xdead at 0x%x\n", 1400 sc->sc_dev.dv_xname, testing-2); 1401 #endif 1402 continue; 1403 } 1404 1405 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1406 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xbeef); 1407 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1408 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xbeef) { 1409 #ifdef IYMEMDEBUG 1410 printf("%s: Didn't keep 0xbeef at 0x%x\n", 1411 sc->sc_dev.dv_xname, testing-2); 1412 #endif 1413 continue; 1414 } 1415 1416 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1417 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1418 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing >> 1); 1419 bus_space_write_2(iot, ioh, MEM_PORT_REG, testing >> 1); 1420 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1421 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) == (testing >> 1)) { 1422 #ifdef IYMEMDEBUG 1423 printf("%s: 0x%x alias of 0x0\n", 1424 sc->sc_dev.dv_xname, testing >> 1); 1425 #endif 1426 continue; 1427 } 1428 1429 break; 1430 } 1431 1432 sc->sram = testing; 1433 1434 switch(testing) { 1435 case 65536: 1436 /* 4 NFS packets + overhead RX, 2 NFS + overhead TX */ 1437 sc->rx_size = 44*1024; 1438 break; 1439 1440 case 32768: 1441 /* 2 NFS packets + overhead RX, 1 NFS + overhead TX */ 1442 sc->rx_size = 22*1024; 1443 break; 1444 1445 case 16384: 1446 /* 1 NFS packet + overhead RX, 4 big packets TX */ 1447 sc->rx_size = 10*1024; 1448 break; 1449 default: 1450 sc->rx_size = testing/2; 1451 break; 1452 } 1453 sc->tx_size = testing - sc->rx_size; 1454 } 1455 1456 static int 1457 eepromreadall(iot, ioh, wordp, maxi) 1458 bus_space_tag_t iot; 1459 bus_space_handle_t ioh; 1460 u_int16_t *wordp; 1461 int maxi; 1462 { 1463 int i; 1464 u_int16_t checksum, tmp; 1465 1466 checksum = 0; 1467 1468 for (i=0; i<EEPP_LENGTH; ++i) { 1469 tmp = eepromread(iot, ioh, i); 1470 checksum += tmp; 1471 if (i<maxi) 1472 wordp[i] = tmp; 1473 } 1474 1475 if (checksum != EEPP_CHKSUM) { 1476 #ifdef IYDEBUG 1477 printf("wrong EEPROM checksum 0x%x should be 0x%x\n", 1478 checksum, EEPP_CHKSUM); 1479 #endif 1480 return 1; 1481 } 1482 return 0; 1483 } 1484
Indexes created Wed Oct 01 15:09:59 GMT 2025