if_iy.c revision 1.18
1 /* $NetBSD: if_iy.c,v 1.18 1997/12/02 09:34:06 bouyer 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 #ifdef __BROKEN_INDIRECT_CONFIG 167 int iyprobe __P((struct device *, void *, void *)); 168 #else 169 int iyprobe __P((struct device *, struct cfdata *, void *)); 170 #endif 171 void iyattach __P((struct device *, struct device *, void *)); 172 173 static u_int16_t eepromread __P((bus_space_tag_t, bus_space_handle_t, int)); 174 175 static int eepromreadall __P((bus_space_tag_t, bus_space_handle_t, u_int16_t *, 176 int)); 177 178 struct cfattach iy_ca = { 179 sizeof(struct iy_softc), iyprobe, iyattach 180 }; 181 182 struct cfdriver iy_cd = { 183 NULL, "iy", DV_IFNET 184 }; 185 186 static u_int8_t eepro_irqmap[] = EEPP_INTMAP; 187 static u_int8_t eepro_revirqmap[] = EEPP_RINTMAP; 188 189 int 190 iyprobe(parent, match, aux) 191 struct device *parent; 192 #ifdef __BROKEN_INDIRECT_CONFIG 193 void *match; 194 #else 195 struct cfdata *match; 196 #endif 197 void *aux; 198 { 199 struct isa_attach_args *ia = aux; 200 u_int16_t eaddr[8]; 201 202 bus_space_tag_t iot; 203 bus_space_handle_t ioh; 204 205 u_int8_t c, d; 206 207 iot = ia->ia_iot; 208 209 if (ia->ia_iobase == IOBASEUNK) 210 return 0; 211 212 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) 213 return 0; 214 215 /* try to find the round robin sig: */ 216 217 c = bus_space_read_1(iot, ioh, ID_REG); 218 if ((c & ID_REG_MASK) != ID_REG_SIG) 219 goto out; 220 221 d = bus_space_read_1(iot, ioh, ID_REG); 222 if ((d & ID_REG_MASK) != ID_REG_SIG) 223 goto out; 224 225 if (((d-c) & R_ROBIN_BITS) != 0x40) 226 goto out; 227 228 d = bus_space_read_1(iot, ioh, ID_REG); 229 if ((d & ID_REG_MASK) != ID_REG_SIG) 230 goto out; 231 232 if (((d-c) & R_ROBIN_BITS) != 0x80) 233 goto out; 234 235 d = bus_space_read_1(iot, ioh, ID_REG); 236 if ((d & ID_REG_MASK) != ID_REG_SIG) 237 goto out; 238 239 if (((d-c) & R_ROBIN_BITS) != 0xC0) 240 goto out; 241 242 d = bus_space_read_1(iot, ioh, ID_REG); 243 if ((d & ID_REG_MASK) != ID_REG_SIG) 244 goto out; 245 246 if (((d-c) & R_ROBIN_BITS) != 0x00) 247 goto out; 248 249 #ifdef IYDEBUG 250 printf("iyprobe verified working ID reg.\n"); 251 #endif 252 253 if (eepromreadall(iot, ioh, eaddr, 8)) 254 goto out; 255 256 if (ia->ia_irq == IRQUNK) 257 ia->ia_irq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 258 259 if (ia->ia_irq >= sizeof(eepro_revirqmap)) 260 goto out; 261 262 if (eepro_revirqmap[ia->ia_irq] == 0xff) 263 goto out; 264 265 /* now lets reset the chip */ 266 267 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 268 delay(200); 269 270 ia->ia_iosize = 16; 271 272 bus_space_unmap(iot, ioh, 16); 273 return 1; /* found */ 274 out: 275 bus_space_unmap(iot, ioh, 16); 276 return 0; 277 } 278 279 void 280 iyattach(parent, self, aux) 281 struct device *parent, *self; 282 void *aux; 283 { 284 struct iy_softc *sc = (void *)self; 285 struct isa_attach_args *ia = aux; 286 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 287 bus_space_tag_t iot; 288 bus_space_handle_t ioh; 289 unsigned temp; 290 u_int16_t eaddr[8]; 291 u_int8_t myaddr[ETHER_ADDR_LEN]; 292 int eirq; 293 294 iot = ia->ia_iot; 295 296 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) { 297 printf(": can't map i/o space\n"); 298 return; 299 } 300 301 sc->sc_iot = iot; 302 sc->sc_ioh = ioh; 303 304 sc->mappedirq = eepro_revirqmap[ia->ia_irq]; 305 306 /* now let's reset the chip */ 307 308 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 309 delay(200); 310 311 iyprobemem(sc); 312 313 bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); 314 ifp->if_softc = sc; 315 ifp->if_start = iystart; 316 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 317 /* XXX todo: | IFF_MULTICAST */ 318 319 ifp->if_ioctl = iyioctl; 320 ifp->if_watchdog = iywatchdog; 321 322 (void)eepromreadall(iot, ioh, eaddr, 8); 323 sc->hard_vers = eaddr[EEPW6] & EEPP_BoardRev; 324 325 #ifdef DIAGNOSTICS 326 if ((eaddr[EEPPEther0] != 327 eepromread(iot, ioh, EEPPEther0a)) && 328 (eaddr[EEPPEther1] != 329 eepromread(iot, ioh, EEPPEther1a)) && 330 (eaddr[EEPPEther2] != 331 eepromread(iot, ioh, EEPPEther2a))) 332 333 printf("EEPROM Ethernet address differs from copy\n"); 334 #endif 335 336 myaddr[1] = eaddr[EEPPEther0] & 0xFF; 337 myaddr[0] = eaddr[EEPPEther0] >> 8; 338 myaddr[3] = eaddr[EEPPEther1] & 0xFF; 339 myaddr[2] = eaddr[EEPPEther1] >> 8; 340 myaddr[5] = eaddr[EEPPEther2] & 0xFF; 341 myaddr[4] = eaddr[EEPPEther2] >> 8; 342 343 ifmedia_init(&sc->iy_ifmedia, 0, iy_mediachange, iy_mediastatus); 344 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_2, 0, NULL); 345 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL); 346 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 347 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 348 ifmedia_set(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO); 349 /* Attach the interface. */ 350 if_attach(ifp); 351 ether_ifattach(ifp, myaddr); 352 printf(": address %s, rev. %d, %d kB\n", 353 ether_sprintf(myaddr), 354 sc->hard_vers, sc->sram/1024); 355 356 eirq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 357 if (eirq != ia->ia_irq) 358 printf("%s: EEPROM irq setting %d ignored\n", 359 sc->sc_dev.dv_xname, eirq); 360 361 #if NBPFILTER > 0 362 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); 363 #endif 364 365 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 366 IPL_NET, iyintr, sc); 367 368 #if NRND > 0 369 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, RND_TYPE_NET); 370 #endif 371 372 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 373 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 374 } 375 376 void 377 iystop(sc) 378 struct iy_softc *sc; 379 { 380 bus_space_tag_t iot; 381 bus_space_handle_t ioh; 382 #ifdef IYDEBUG 383 u_int p, v; 384 #endif 385 386 iot = sc->sc_iot; 387 ioh = sc->sc_ioh; 388 389 bus_space_write_1(iot, ioh, COMMAND_REG, RCV_DISABLE_CMD); 390 391 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 392 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); 393 394 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 395 delay(200); 396 #ifdef IYDEBUG 397 printf("%s: dumping tx chain (st 0x%x end 0x%x last 0x%x)\n", 398 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 399 p = sc->tx_last; 400 if (!p) 401 p = sc->tx_start; 402 do { 403 bus_space_write_2(iot, ioh, HOST_ADDR_REG, p); 404 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 405 printf("0x%04x: %b ", p, v, "\020\006Ab\010Dn"); 406 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 407 printf("0x%b", v, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL"); 408 p = bus_space_read_2(iot, ioh, MEM_PORT_REG); 409 printf(" 0x%04x", p); 410 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 411 printf(" 0x%b\n", v, "\020\020Ch"); 412 413 } while (v & 0x8000); 414 #endif 415 sc->tx_start = sc->tx_end = sc->rx_size; 416 sc->tx_last = 0; 417 sc->sc_ethercom.ec_if.if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 418 } 419 420 void 421 iyreset(sc) 422 struct iy_softc *sc; 423 { 424 int s; 425 s = splimp(); 426 iystop(sc); 427 iyinit(sc); 428 splx(s); 429 } 430 431 void 432 iyinit(sc) 433 struct iy_softc *sc; 434 { 435 int i; 436 unsigned temp; 437 struct ifnet *ifp; 438 bus_space_tag_t iot; 439 bus_space_handle_t ioh; 440 441 iot = sc->sc_iot; 442 ioh = sc->sc_ioh; 443 444 ifp = &sc->sc_ethercom.ec_if; 445 #ifdef IYDEBUG 446 printf("ifp is %p\n", ifp); 447 #endif 448 449 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 450 451 temp = bus_space_read_1(iot, ioh, EEPROM_REG); 452 if (temp & 0x10) 453 bus_space_write_1(iot, ioh, EEPROM_REG, temp & ~0x10); 454 455 for (i=0; i<6; ++i) { 456 bus_space_write_1(iot, ioh, I_ADD(i), LLADDR(ifp->if_sadl)[i]); 457 } 458 459 temp = bus_space_read_1(iot, ioh, REG1); 460 bus_space_write_1(iot, ioh, REG1, 461 temp | XMT_CHAIN_INT | XMT_CHAIN_ERRSTOP | RCV_DISCARD_BAD); 462 463 temp = bus_space_read_1(iot, ioh, RECV_MODES_REG); 464 bus_space_write_1(iot, ioh, RECV_MODES_REG, temp | MATCH_BRDCST); 465 #ifdef IYDEBUG 466 printf("%s: RECV_MODES were %b set to %b\n", 467 sc->sc_dev.dv_xname, 468 temp, "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA", 469 temp|MATCH_BRDCST, 470 "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA"); 471 #endif 472 473 474 delay(500000); /* for the hardware to test for the connector */ 475 476 temp = bus_space_read_1(iot, ioh, MEDIA_SELECT); 477 #ifdef IYDEBUG 478 printf("%s: media select was 0x%b ", sc->sc_dev.dv_xname, 479 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 480 #endif 481 temp = (temp & TEST_MODE_MASK); 482 483 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 484 case IFM_10_5: 485 temp &= ~ (BNC_BIT | TPE_BIT); 486 break; 487 488 case IFM_10_2: 489 temp = (temp & ~TPE_BIT) | BNC_BIT; 490 break; 491 492 case IFM_10_T: 493 temp = (temp & ~BNC_BIT) | TPE_BIT; 494 break; 495 default: 496 /* nothing; leave as it is */ 497 } 498 switch (temp & (BNC_BIT | TPE_BIT)) { 499 case BNC_BIT: 500 sc->iy_media = IFM_ETHER | IFM_10_2; 501 break; 502 case TPE_BIT: 503 sc->iy_media = IFM_ETHER | IFM_10_T; 504 break; 505 default: 506 sc->iy_media = IFM_ETHER | IFM_10_5; 507 } 508 509 bus_space_write_1(iot, ioh, MEDIA_SELECT, temp); 510 #ifdef IYDEBUG 511 printf("changed to 0x%b\n", 512 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 513 #endif 514 515 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 516 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 517 bus_space_write_1(iot, ioh, 0, BANK_SEL(1)); 518 519 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 520 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 521 522 #ifdef IYDEBUG 523 printf("%s: int no was %b\n", sc->sc_dev.dv_xname, 524 temp, "\020\4bad_irq\010flash/boot present"); 525 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 526 printf("%s: int no now 0x%02x\n", sc->sc_dev.dv_xname, 527 temp, "\020\4BAD IRQ\010flash/boot present"); 528 #endif 529 530 531 bus_space_write_1(iot, ioh, RCV_LOWER_LIMIT_REG, 0); 532 bus_space_write_1(iot, ioh, RCV_UPPER_LIMIT_REG, (sc->rx_size - 2) >> 8); 533 bus_space_write_1(iot, ioh, XMT_LOWER_LIMIT_REG, sc->rx_size >> 8); 534 bus_space_write_1(iot, ioh, XMT_UPPER_LIMIT_REG, sc->sram >> 8); 535 536 temp = bus_space_read_1(iot, ioh, REG1); 537 #ifdef IYDEBUG 538 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 539 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 540 #endif 541 bus_space_write_1(iot, ioh, REG1, temp | INT_ENABLE); /* XXX what about WORD_WIDTH? */ 542 543 #ifdef IYDEBUG 544 temp = bus_space_read_1(iot, ioh, REG1); 545 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 546 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 547 #endif 548 549 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 550 551 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS & ~(RX_BIT|TX_BIT)); 552 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); /* clear ints */ 553 554 bus_space_write_2(iot, ioh, RCV_START_LOW, 0); 555 bus_space_write_2(iot, ioh, RCV_STOP_LOW, sc->rx_size - 2); 556 sc->rx_start = 0; 557 558 bus_space_write_1(iot, ioh, 0, SEL_RESET_CMD); 559 delay(200); 560 561 bus_space_write_2(iot, ioh, XMT_ADDR_REG, sc->rx_size); 562 563 sc->tx_start = sc->tx_end = sc->rx_size; 564 sc->tx_last = 0; 565 566 bus_space_write_1(iot, ioh, 0, RCV_ENABLE_CMD); 567 568 ifp->if_flags |= IFF_RUNNING; 569 ifp->if_flags &= ~IFF_OACTIVE; 570 } 571 572 void 573 iystart(ifp) 574 struct ifnet *ifp; 575 { 576 struct iy_softc *sc; 577 578 579 struct mbuf *m0, *m; 580 u_int len, pad, last, end; 581 u_int llen, residual; 582 int avail; 583 caddr_t data; 584 u_int16_t resval, stat; 585 bus_space_tag_t iot; 586 bus_space_handle_t ioh; 587 588 #ifdef IYDEBUG 589 printf("iystart called\n"); 590 #endif 591 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 592 return; 593 594 sc = ifp->if_softc; 595 iot = sc->sc_iot; 596 ioh = sc->sc_ioh; 597 598 while ((m0 = ifp->if_snd.ifq_head) != NULL) { 599 #ifdef IYDEBUG 600 printf("%s: trying to write another packet to the hardware\n", 601 sc->sc_dev.dv_xname); 602 #endif 603 604 /* We need to use m->m_pkthdr.len, so require the header */ 605 if ((m0->m_flags & M_PKTHDR) == 0) 606 panic("iystart: no header mbuf"); 607 608 len = m0->m_pkthdr.len; 609 pad = len & 1; 610 611 #ifdef IYDEBUG 612 printf("%s: length is %d.\n", sc->sc_dev.dv_xname, len); 613 #endif 614 if (len < ETHER_MIN_LEN) { 615 pad = ETHER_MIN_LEN - len; 616 } 617 618 if (len + pad > ETHER_MAX_LEN) { 619 /* packet is obviously too large: toss it */ 620 ++ifp->if_oerrors; 621 IF_DEQUEUE(&ifp->if_snd, m0); 622 m_freem(m0); 623 continue; 624 } 625 626 #if NBPFILTER > 0 627 if (ifp->if_bpf) 628 bpf_mtap(ifp->if_bpf, m0); 629 #endif 630 631 avail = sc->tx_start - sc->tx_end; 632 if (avail <= 0) 633 avail += sc->tx_size; 634 635 #ifdef IYDEBUG 636 printf("%s: avail is %d.\n", sc->sc_dev.dv_xname, avail); 637 #endif 638 /* 639 * we MUST RUN at splnet here --- 640 * XXX todo: or even turn off the boards ints ??? hm... 641 */ 642 643 /* See if there is room to put another packet in the buffer. */ 644 645 if ((len+pad+2*I595_XMT_HDRLEN) > avail) { 646 printf("%s: len = %d, avail = %d, setting OACTIVE\n", 647 sc->sc_dev.dv_xname, len, avail); 648 ifp->if_flags |= IFF_OACTIVE; 649 return; 650 } 651 652 /* we know it fits in the hardware now, so dequeue it */ 653 IF_DEQUEUE(&ifp->if_snd, m0); 654 655 last = sc->tx_end; 656 end = last + pad + len + I595_XMT_HDRLEN; 657 658 if (end >= sc->sram) { 659 if ((sc->sram - last) <= I595_XMT_HDRLEN) { 660 /* keep header in one piece */ 661 last = sc->rx_size; 662 end = last + pad + len + I595_XMT_HDRLEN; 663 } else 664 end -= sc->tx_size; 665 } 666 667 bus_space_write_2(iot, ioh, HOST_ADDR_REG, last); 668 bus_space_write_2(iot, ioh, MEM_PORT_REG, XMT_CMD); 669 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 670 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 671 bus_space_write_2(iot, ioh, MEM_PORT_REG, len + pad); 672 673 residual = resval = 0; 674 675 while ((m = m0)!=0) { 676 data = mtod(m, caddr_t); 677 llen = m->m_len; 678 if (residual) { 679 #ifdef IYDEBUG 680 printf("%s: merging residual with next mbuf.\n", 681 sc->sc_dev.dv_xname); 682 #endif 683 resval |= *data << 8; 684 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 685 --llen; 686 ++data; 687 } 688 if (llen > 1) 689 bus_space_write_multi_2(iot, ioh, MEM_PORT_REG, 690 data, llen>>1); 691 residual = llen & 1; 692 if (residual) { 693 resval = *(data + llen - 1); 694 #ifdef IYDEBUG 695 printf("%s: got odd mbuf to send.\n", 696 sc->sc_dev.dv_xname); 697 #endif 698 } 699 700 MFREE(m, m0); 701 } 702 703 if (residual) 704 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 705 706 pad >>= 1; 707 while (pad-- > 0) 708 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 709 710 #ifdef IYDEBUG 711 printf("%s: new last = 0x%x, end = 0x%x.\n", 712 sc->sc_dev.dv_xname, last, end); 713 printf("%s: old start = 0x%x, end = 0x%x, last = 0x%x\n", 714 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 715 #endif 716 717 if (sc->tx_start != sc->tx_end) { 718 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_COUNT); 719 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); 720 721 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_CHAIN); 722 bus_space_write_2(iot, ioh, MEM_PORT_REG, last); 723 bus_space_write_2(iot, ioh, MEM_PORT_REG, stat | CHAIN); 724 #ifdef IYDEBUG 725 printf("%s: setting 0x%x to 0x%x\n", 726 sc->sc_dev.dv_xname, sc->tx_last + XMT_COUNT, 727 stat | CHAIN); 728 #endif 729 } 730 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); /* dummy read */ 731 732 /* XXX todo: enable ints here if disabled */ 733 734 ++ifp->if_opackets; 735 736 if (sc->tx_start == sc->tx_end) { 737 bus_space_write_2(iot, ioh, XMT_ADDR_REG, last); 738 bus_space_write_1(iot, ioh, 0, XMT_CMD); 739 sc->tx_start = last; 740 #ifdef IYDEBUG 741 printf("%s: writing 0x%x to XAR and giving XCMD\n", 742 sc->sc_dev.dv_xname, last); 743 #endif 744 } else { 745 bus_space_write_1(iot, ioh, 0, RESUME_XMT_CMD); 746 #ifdef IYDEBUG 747 printf("%s: giving RESUME_XCMD\n", 748 sc->sc_dev.dv_xname); 749 #endif 750 } 751 sc->tx_last = last; 752 sc->tx_end = end; 753 } 754 } 755 756 757 static __inline void 758 eepromwritebit(iot, ioh, what) 759 bus_space_tag_t iot; 760 bus_space_handle_t ioh; 761 int what; 762 { 763 bus_space_write_1(iot, ioh, EEPROM_REG, what); 764 delay(1); 765 bus_space_write_1(iot, ioh, EEPROM_REG, what|EESK); 766 delay(1); 767 bus_space_write_1(iot, ioh, EEPROM_REG, what); 768 delay(1); 769 } 770 771 static __inline int 772 eepromreadbit(iot, ioh) 773 bus_space_tag_t iot; 774 bus_space_handle_t ioh; 775 { 776 int b; 777 778 bus_space_write_1(iot, ioh, EEPROM_REG, EECS|EESK); 779 delay(1); 780 b = bus_space_read_1(iot, ioh, EEPROM_REG); 781 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); 782 delay(1); 783 784 return ((b & EEDO) != 0); 785 } 786 787 static u_int16_t 788 eepromread(iot, ioh, offset) 789 bus_space_tag_t iot; 790 bus_space_handle_t ioh; 791 int offset; 792 { 793 volatile int i; 794 volatile int j; 795 volatile u_int16_t readval; 796 797 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 798 delay(1); 799 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); /* XXXX??? */ 800 delay(1); 801 802 eepromwritebit(iot, ioh, EECS|EEDI); 803 eepromwritebit(iot, ioh, EECS|EEDI); 804 eepromwritebit(iot, ioh, EECS); 805 806 for (j=5; j>=0; --j) { 807 if ((offset>>j) & 1) 808 eepromwritebit(iot, ioh, EECS|EEDI); 809 else 810 eepromwritebit(iot, ioh, EECS); 811 } 812 813 for (readval=0, i=0; i<16; ++i) { 814 readval<<=1; 815 readval |= eepromreadbit(iot, ioh); 816 } 817 818 bus_space_write_1(iot, ioh, EEPROM_REG, 0|EESK); 819 delay(1); 820 bus_space_write_1(iot, ioh, EEPROM_REG, 0); 821 822 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 823 824 return readval; 825 } 826 827 /* 828 * Device timeout/watchdog routine. Entered if the device neglects to generate 829 * an interrupt after a transmit has been started on it. 830 */ 831 void 832 iywatchdog(ifp) 833 struct ifnet *ifp; 834 { 835 struct iy_softc *sc = ifp->if_softc; 836 837 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 838 ++sc->sc_ethercom.ec_if.if_oerrors; 839 iyreset(sc); 840 } 841 842 /* 843 * What to do upon receipt of an interrupt. 844 */ 845 int 846 iyintr(arg) 847 void *arg; 848 { 849 struct iy_softc *sc = arg; 850 bus_space_tag_t iot; 851 bus_space_handle_t ioh; 852 853 register u_short status; 854 855 iot = sc->sc_iot; 856 ioh = sc->sc_ioh; 857 858 status = bus_space_read_1(iot, ioh, STATUS_REG); 859 #ifdef IYDEBUG 860 if (status & ALL_INTS) { 861 printf("%s: got interupt %b", sc->sc_dev.dv_xname, status, 862 "\020\1RX_STP\2RX\3TX\4EXEC"); 863 if (status & EXEC_INT) 864 printf(" event %b\n", bus_space_read_1(iot, ioh, 0), 865 "\020\6ABORT"); 866 else 867 printf("\n"); 868 } 869 #endif 870 if (((status & (RX_INT | TX_INT)) == 0)) 871 return 0; 872 873 if (status & RX_INT) { 874 iy_intr_rx(sc); 875 bus_space_write_1(iot, ioh, STATUS_REG, RX_INT); 876 } else if (status & TX_INT) { 877 iy_intr_tx(sc); 878 bus_space_write_1(iot, ioh, STATUS_REG, TX_INT); 879 } 880 881 #if NRND > 0 882 rnd_add_uint32(&sc->rnd_source, status); 883 #endif 884 885 return 1; 886 } 887 888 void 889 iyget(sc, iot, ioh, rxlen) 890 struct iy_softc *sc; 891 bus_space_tag_t iot; 892 bus_space_handle_t ioh; 893 int rxlen; 894 { 895 struct mbuf *m, *top, **mp; 896 struct ether_header *eh; 897 struct ifnet *ifp; 898 int len; 899 900 ifp = &sc->sc_ethercom.ec_if; 901 902 MGETHDR(m, M_DONTWAIT, MT_DATA); 903 if (m == 0) 904 goto dropped; 905 m->m_pkthdr.rcvif = ifp; 906 m->m_pkthdr.len = rxlen; 907 len = MHLEN; 908 top = 0; 909 mp = ⊤ 910 911 while (rxlen > 0) { 912 if (top) { 913 MGET(m, M_DONTWAIT, MT_DATA); 914 if (m == 0) { 915 m_freem(top); 916 goto dropped; 917 } 918 len = MLEN; 919 } 920 if (rxlen >= MINCLSIZE) { 921 MCLGET(m, M_DONTWAIT); 922 if ((m->m_flags & M_EXT) == 0) { 923 m_free(m); 924 m_freem(top); 925 goto dropped; 926 } 927 len = MCLBYTES; 928 } 929 len = min(rxlen, len); 930 if (len > 1) { 931 len &= ~1; 932 933 bus_space_read_multi_2(iot, ioh, MEM_PORT_REG, 934 mtod(m, caddr_t), len/2); 935 } else { 936 #ifdef IYDEBUG 937 printf("%s: received odd mbuf\n", sc->sc_dev.dv_xname); 938 #endif 939 *(mtod(m, caddr_t)) = bus_space_read_2(iot, ioh, 940 MEM_PORT_REG); 941 } 942 m->m_len = len; 943 rxlen -= len; 944 *mp = m; 945 mp = &m->m_next; 946 } 947 /* XXX receive the top here */ 948 ++ifp->if_ipackets; 949 950 eh = mtod(top, struct ether_header *); 951 952 #if NBPFILTER > 0 953 if (ifp->if_bpf) { 954 bpf_mtap(ifp->if_bpf, top); 955 if ((ifp->if_flags & IFF_PROMISC) && 956 (eh->ether_dhost[0] & 1) == 0 && 957 bcmp(eh->ether_dhost, 958 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 959 sizeof(eh->ether_dhost)) != 0) { 960 961 m_freem(top); 962 return; 963 } 964 } 965 #endif 966 m_adj(top, sizeof(struct ether_header)); 967 ether_input(ifp, eh, top); 968 return; 969 970 dropped: 971 ++ifp->if_ierrors; 972 return; 973 } 974 void 975 iy_intr_rx(sc) 976 struct iy_softc *sc; 977 { 978 struct ifnet *ifp; 979 bus_space_tag_t iot; 980 bus_space_handle_t ioh; 981 982 u_int rxadrs, rxevnt, rxstatus, rxnext, rxlen; 983 984 iot = sc->sc_iot; 985 ioh = sc->sc_ioh; 986 ifp = &sc->sc_ethercom.ec_if; 987 988 rxadrs = sc->rx_start; 989 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxadrs); 990 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 991 rxnext = 0; 992 993 while (rxevnt == RCV_DONE) { 994 rxstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 995 rxnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 996 rxlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 997 #ifdef IYDEBUG 998 printf("%s: pck at 0x%04x stat %b next 0x%x len 0x%x\n", 999 sc->sc_dev.dv_xname, rxadrs, rxstatus, 1000 "\020\1RCLD\2IA_MCH\010SHORT\011OVRN\013ALGERR" 1001 "\014CRCERR\015LENERR\016RCVOK\020TYP", 1002 rxnext, rxlen); 1003 #endif 1004 iyget(sc, iot, ioh, rxlen); 1005 1006 /* move stop address */ 1007 bus_space_write_2(iot, ioh, RCV_STOP_LOW, 1008 rxnext == 0 ? sc->rx_size - 2 : rxnext - 2); 1009 1010 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxnext); 1011 rxadrs = rxnext; 1012 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1013 } 1014 sc->rx_start = rxnext; 1015 } 1016 1017 void 1018 iy_intr_tx(sc) 1019 struct iy_softc *sc; 1020 { 1021 bus_space_tag_t iot; 1022 bus_space_handle_t ioh; 1023 struct ifnet *ifp; 1024 u_int txstatus, txstat2, txlen, txnext; 1025 1026 ifp = &sc->sc_ethercom.ec_if; 1027 iot = sc->sc_iot; 1028 ioh = sc->sc_ioh; 1029 1030 while (sc->tx_start != sc->tx_end) { 1031 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_start); 1032 txstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1033 if ((txstatus & (TX_DONE|CMD_MASK)) != (TX_DONE|XMT_CMD)) 1034 break; 1035 1036 txstat2 = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1037 txnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1038 txlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1039 #ifdef IYDEBUG 1040 printf("txstat 0x%x stat2 0x%b next 0x%x len 0x%x\n", 1041 txstatus, txstat2, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF" 1042 "\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL", 1043 txnext, txlen); 1044 #endif 1045 if (txlen & CHAIN) 1046 sc->tx_start = txnext; 1047 else 1048 sc->tx_start = sc->tx_end; 1049 ifp->if_flags &= ~IFF_OACTIVE; 1050 1051 if ((txstat2 & 0x2000) == 0) 1052 ++ifp->if_oerrors; 1053 if (txstat2 & 0x000f) 1054 ifp->if_oerrors += txstat2 & 0x000f; 1055 } 1056 ifp->if_flags &= ~IFF_OACTIVE; 1057 } 1058 1059 #if 0 1060 /* 1061 * Compare two Ether/802 addresses for equality, inlined and unrolled for 1062 * speed. I'd love to have an inline assembler version of this... 1063 */ 1064 static inline int 1065 ether_equal(one, two) 1066 u_char *one, *two; 1067 { 1068 1069 if (one[0] != two[0] || one[1] != two[1] || one[2] != two[2] || 1070 one[3] != two[3] || one[4] != two[4] || one[5] != two[5]) 1071 return 0; 1072 return 1; 1073 } 1074 1075 /* 1076 * Check for a valid address. to_bpf is filled in with one of the following: 1077 * 0 -> BPF doesn't get this packet 1078 * 1 -> BPF does get this packet 1079 * 2 -> BPF does get this packet, but we don't 1080 * Return value is true if the packet is for us, and false otherwise. 1081 * 1082 * This routine is a mess, but it's also critical that it be as fast 1083 * as possible. It could be made cleaner if we can assume that the 1084 * only client which will fiddle with IFF_PROMISC is BPF. This is 1085 * probably a good assumption, but we do not make it here. (Yet.) 1086 */ 1087 static inline int 1088 check_eh(sc, eh, to_bpf) 1089 struct iy_softc *sc; 1090 struct ether_header *eh; 1091 int *to_bpf; 1092 { 1093 int i; 1094 1095 switch (sc->promisc) { 1096 case IFF_ALLMULTI: 1097 /* 1098 * Receiving all multicasts, but no unicasts except those 1099 * destined for us. 1100 */ 1101 #if NBPFILTER > 0 1102 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); /* BPF gets this packet if anybody cares */ 1103 #endif 1104 if (eh->ether_dhost[0] & 1) 1105 return 1; 1106 if (ether_equal(eh->ether_dhost, 1107 LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1108 return 1; 1109 return 0; 1110 1111 case IFF_PROMISC: 1112 /* 1113 * Receiving all packets. These need to be passed on to BPF. 1114 */ 1115 #if NBPFILTER > 0 1116 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1117 #endif 1118 /* If for us, accept and hand up to BPF */ 1119 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1120 return 1; 1121 1122 #if NBPFILTER > 0 1123 if (*to_bpf) 1124 *to_bpf = 2; /* we don't need to see it */ 1125 #endif 1126 1127 /* 1128 * Not a multicast, so BPF wants to see it but we don't. 1129 */ 1130 if (!(eh->ether_dhost[0] & 1)) 1131 return 1; 1132 1133 /* 1134 * If it's one of our multicast groups, accept it and pass it 1135 * up. 1136 */ 1137 for (i = 0; i < sc->mcast_count; i++) { 1138 if (ether_equal(eh->ether_dhost, (u_char *)&sc->mcast_addrs[i])) { 1139 #if NBPFILTER > 0 1140 if (*to_bpf) 1141 *to_bpf = 1; 1142 #endif 1143 return 1; 1144 } 1145 } 1146 return 1; 1147 1148 case IFF_ALLMULTI | IFF_PROMISC: 1149 /* 1150 * Acting as a multicast router, and BPF running at the same 1151 * time. Whew! (Hope this is a fast machine...) 1152 */ 1153 #if NBPFILTER > 0 1154 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1155 #endif 1156 /* We want to see multicasts. */ 1157 if (eh->ether_dhost[0] & 1) 1158 return 1; 1159 1160 /* We want to see our own packets */ 1161 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1162 return 1; 1163 1164 /* Anything else goes to BPF but nothing else. */ 1165 #if NBPFILTER > 0 1166 if (*to_bpf) 1167 *to_bpf = 2; 1168 #endif 1169 return 1; 1170 1171 case 0: 1172 /* 1173 * Only accept unicast packets destined for us, or multicasts 1174 * for groups that we belong to. For now, we assume that the 1175 * '586 will only return packets that we asked it for. This 1176 * isn't strictly true (it uses hashing for the multicast 1177 * filter), but it will do in this case, and we want to get out 1178 * of here as quickly as possible. 1179 */ 1180 #if NBPFILTER > 0 1181 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1182 #endif 1183 return 1; 1184 } 1185 1186 #ifdef DIAGNOSTIC 1187 panic("check_eh: impossible"); 1188 #endif 1189 } 1190 #endif 1191 1192 int 1193 iyioctl(ifp, cmd, data) 1194 register struct ifnet *ifp; 1195 u_long cmd; 1196 caddr_t data; 1197 { 1198 struct iy_softc *sc; 1199 struct ifaddr *ifa; 1200 struct ifreq *ifr; 1201 int s, error = 0; 1202 1203 sc = ifp->if_softc; 1204 ifa = (struct ifaddr *)data; 1205 ifr = (struct ifreq *)data; 1206 1207 #ifdef IYDEBUG 1208 printf("iyioctl called with ifp 0x%p (%s) cmd 0x%x data 0x%p\n", 1209 ifp, ifp->if_xname, cmd, data); 1210 #endif 1211 1212 s = splimp(); 1213 1214 switch (cmd) { 1215 1216 case SIOCSIFADDR: 1217 ifp->if_flags |= IFF_UP; 1218 1219 switch (ifa->ifa_addr->sa_family) { 1220 #ifdef INET 1221 case AF_INET: 1222 iyinit(sc); 1223 arp_ifinit(ifp, ifa); 1224 break; 1225 #endif 1226 #ifdef NS 1227 /* XXX - This code is probably wrong. */ 1228 case AF_NS: 1229 { 1230 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1231 1232 if (ns_nullhost(*ina)) 1233 ina->x_host = *(union ns_host *) 1234 LLADDR(sc->sc_ethercom.ec_if.if_sadl); 1235 else 1236 bcopy(ina->x_host.c_host, 1237 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 1238 ETHER_ADDR_LEN); 1239 /* Set new address. */ 1240 iyinit(sc); 1241 break; 1242 } 1243 #endif /* NS */ 1244 default: 1245 iyinit(sc); 1246 break; 1247 } 1248 break; 1249 1250 case SIOCSIFFLAGS: 1251 sc->promisc = ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI); 1252 if ((ifp->if_flags & IFF_UP) == 0 && 1253 (ifp->if_flags & IFF_RUNNING) != 0) { 1254 /* 1255 * If interface is marked down and it is running, then 1256 * stop it. 1257 */ 1258 iystop(sc); 1259 ifp->if_flags &= ~IFF_RUNNING; 1260 } else if ((ifp->if_flags & IFF_UP) != 0 && 1261 (ifp->if_flags & IFF_RUNNING) == 0) { 1262 /* 1263 * If interface is marked up and it is stopped, then 1264 * start it. 1265 */ 1266 iyinit(sc); 1267 } else { 1268 /* 1269 * Reset the interface to pick up changes in any other 1270 * flags that affect hardware registers. 1271 */ 1272 iystop(sc); 1273 iyinit(sc); 1274 } 1275 #ifdef IYDEBUGX 1276 if (ifp->if_flags & IFF_DEBUG) 1277 sc->sc_debug = IFY_ALL; 1278 else 1279 sc->sc_debug = 0; 1280 #endif 1281 break; 1282 1283 #if 0 /* XXX */ 1284 case SIOCADDMULTI: 1285 case SIOCDELMULTI: 1286 error = (cmd == SIOCADDMULTI) ? 1287 ether_addmulti(ifr, &sc->sc_ethercom): 1288 ether_delmulti(ifr, &sc->sc_ethercom); 1289 1290 if (error == ENETRESET) { 1291 /* 1292 * Multicast list has changed; set the hardware filter 1293 * accordingly. 1294 */ 1295 iy_mc_reset(sc); /* XXX */ 1296 error = 0; 1297 } 1298 break; 1299 #endif 1300 case SIOCSIFMEDIA: 1301 case SIOCGIFMEDIA: 1302 error = ifmedia_ioctl(ifp, ifr, &sc->iy_ifmedia, cmd); 1303 break; 1304 default: 1305 error = EINVAL; 1306 } 1307 splx(s); 1308 return error; 1309 } 1310 1311 int 1312 iy_mediachange(ifp) 1313 struct ifnet *ifp; 1314 { 1315 struct iy_softc *sc = ifp->if_softc; 1316 1317 if (IFM_TYPE(sc->iy_ifmedia.ifm_media) != IFM_ETHER) 1318 return EINVAL; 1319 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 1320 case IFM_10_5: 1321 case IFM_10_2: 1322 case IFM_10_T: 1323 case IFM_AUTO: 1324 iystop(sc); 1325 iyinit(sc); 1326 return 0; 1327 default: 1328 return EINVAL; 1329 } 1330 } 1331 1332 void 1333 iy_mediastatus(ifp, ifmr) 1334 struct ifnet *ifp; 1335 struct ifmediareq *ifmr; 1336 { 1337 struct iy_softc *sc = ifp->if_softc; 1338 1339 ifmr->ifm_active = sc->iy_media; 1340 ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE; 1341 } 1342 1343 #if 0 1344 static void 1345 iy_mc_reset(sc) 1346 struct iy_softc *sc; 1347 { 1348 struct ether_multi *enm; 1349 struct ether_multistep step; 1350 1351 /* 1352 * Step through the list of addresses. 1353 */ 1354 sc->mcast_count = 0; 1355 ETHER_FIRST_MULTI(step, &sc->sc_ethercom, enm); 1356 while (enm) { 1357 if (sc->mcast_count >= MAXMCAST || 1358 bcmp(enm->enm_addrlo, enm->enm_addrhi, 6) != 0) { 1359 sc->sc_ethercom.ec_if.if_flags |= IFF_ALLMULTI; 1360 iyioctl(&sc->sc_ethercom.ec_if, SIOCSIFFLAGS, 1361 (void *)0); 1362 goto setflag; 1363 } 1364 1365 bcopy(enm->enm_addrlo, &sc->mcast_addrs[sc->mcast_count], 6); 1366 sc->mcast_count++; 1367 ETHER_NEXT_MULTI(step, enm); 1368 } 1369 setflag: 1370 sc->want_mcsetup = 1; 1371 } 1372 1373 #ifdef IYDEBUG 1374 void 1375 print_rbd(rbd) 1376 volatile struct ie_recv_buf_desc *rbd; 1377 { 1378 1379 printf("RBD at %08lx:\nactual %04x, next %04x, buffer %08x\n" 1380 "length %04x, mbz %04x\n", (u_long)rbd, rbd->ie_rbd_actual, 1381 rbd->ie_rbd_next, rbd->ie_rbd_buffer, rbd->ie_rbd_length, 1382 rbd->mbz); 1383 } 1384 #endif 1385 #endif 1386 1387 void 1388 iyprobemem(sc) 1389 struct iy_softc *sc; 1390 { 1391 bus_space_tag_t iot; 1392 bus_space_handle_t ioh; 1393 int testing; 1394 1395 iot = sc->sc_iot; 1396 ioh = sc->sc_ioh; 1397 1398 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 1399 delay(1); 1400 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 4096-2); 1401 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1402 1403 for (testing=65536; testing >= 4096; testing >>= 1) { 1404 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1405 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xdead); 1406 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1407 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xdead) { 1408 #ifdef IYMEMDEBUG 1409 printf("%s: Didn't keep 0xdead at 0x%x\n", 1410 sc->sc_dev.dv_xname, testing-2); 1411 #endif 1412 continue; 1413 } 1414 1415 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1416 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xbeef); 1417 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1418 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xbeef) { 1419 #ifdef IYMEMDEBUG 1420 printf("%s: Didn't keep 0xbeef at 0x%x\n", 1421 sc->sc_dev.dv_xname, testing-2); 1422 #endif 1423 continue; 1424 } 1425 1426 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1427 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1428 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing >> 1); 1429 bus_space_write_2(iot, ioh, MEM_PORT_REG, testing >> 1); 1430 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1431 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) == (testing >> 1)) { 1432 #ifdef IYMEMDEBUG 1433 printf("%s: 0x%x alias of 0x0\n", 1434 sc->sc_dev.dv_xname, testing >> 1); 1435 #endif 1436 continue; 1437 } 1438 1439 break; 1440 } 1441 1442 sc->sram = testing; 1443 1444 switch(testing) { 1445 case 65536: 1446 /* 4 NFS packets + overhead RX, 2 NFS + overhead TX */ 1447 sc->rx_size = 44*1024; 1448 break; 1449 1450 case 32768: 1451 /* 2 NFS packets + overhead RX, 1 NFS + overhead TX */ 1452 sc->rx_size = 22*1024; 1453 break; 1454 1455 case 16384: 1456 /* 1 NFS packet + overhead RX, 4 big packets TX */ 1457 sc->rx_size = 10*1024; 1458 break; 1459 default: 1460 sc->rx_size = testing/2; 1461 break; 1462 } 1463 sc->tx_size = testing - sc->rx_size; 1464 } 1465 1466 static int 1467 eepromreadall(iot, ioh, wordp, maxi) 1468 bus_space_tag_t iot; 1469 bus_space_handle_t ioh; 1470 u_int16_t *wordp; 1471 int maxi; 1472 { 1473 int i; 1474 u_int16_t checksum, tmp; 1475 1476 checksum = 0; 1477 1478 for (i=0; i<EEPP_LENGTH; ++i) { 1479 tmp = eepromread(iot, ioh, i); 1480 checksum += tmp; 1481 if (i<maxi) 1482 wordp[i] = tmp; 1483 } 1484 1485 if (checksum != EEPP_CHKSUM) { 1486 #ifdef IYDEBUG 1487 printf("wrong EEPROM checksum 0x%x should be 0x%x\n", 1488 checksum, EEPP_CHKSUM); 1489 #endif 1490 return 1; 1491 } 1492 return 0; 1493 } 1494
Indexes created Thu Sep 25 16:09:42 GMT 2025