if_iy.c revision 1.20
1 /* $NetBSD: if_iy.c,v 1.20 1998/02/03 16:22:01 is 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 static u_int8_t eepro_irqmap[] = EEPP_INTMAP; 183 static u_int8_t eepro_revirqmap[] = EEPP_RINTMAP; 184 185 int 186 iyprobe(parent, match, aux) 187 struct device *parent; 188 #ifdef __BROKEN_INDIRECT_CONFIG 189 void *match; 190 #else 191 struct cfdata *match; 192 #endif 193 void *aux; 194 { 195 struct isa_attach_args *ia = aux; 196 u_int16_t eaddr[8]; 197 198 bus_space_tag_t iot; 199 bus_space_handle_t ioh; 200 201 u_int8_t c, d; 202 203 iot = ia->ia_iot; 204 205 if (ia->ia_iobase == IOBASEUNK) 206 return 0; 207 208 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) 209 return 0; 210 211 /* try to find the round robin sig: */ 212 213 c = bus_space_read_1(iot, ioh, ID_REG); 214 if ((c & ID_REG_MASK) != ID_REG_SIG) 215 goto out; 216 217 d = bus_space_read_1(iot, ioh, ID_REG); 218 if ((d & ID_REG_MASK) != ID_REG_SIG) 219 goto out; 220 221 if (((d-c) & R_ROBIN_BITS) != 0x40) 222 goto out; 223 224 d = bus_space_read_1(iot, ioh, ID_REG); 225 if ((d & ID_REG_MASK) != ID_REG_SIG) 226 goto out; 227 228 if (((d-c) & R_ROBIN_BITS) != 0x80) 229 goto out; 230 231 d = bus_space_read_1(iot, ioh, ID_REG); 232 if ((d & ID_REG_MASK) != ID_REG_SIG) 233 goto out; 234 235 if (((d-c) & R_ROBIN_BITS) != 0xC0) 236 goto out; 237 238 d = bus_space_read_1(iot, ioh, ID_REG); 239 if ((d & ID_REG_MASK) != ID_REG_SIG) 240 goto out; 241 242 if (((d-c) & R_ROBIN_BITS) != 0x00) 243 goto out; 244 245 #ifdef IYDEBUG 246 printf("iyprobe verified working ID reg.\n"); 247 #endif 248 249 if (eepromreadall(iot, ioh, eaddr, 8)) 250 goto out; 251 252 if (ia->ia_irq == IRQUNK) 253 ia->ia_irq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 254 255 if (ia->ia_irq >= sizeof(eepro_revirqmap)) 256 goto out; 257 258 if (eepro_revirqmap[ia->ia_irq] == 0xff) 259 goto out; 260 261 /* now lets reset the chip */ 262 263 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 264 delay(200); 265 266 ia->ia_iosize = 16; 267 268 bus_space_unmap(iot, ioh, 16); 269 return 1; /* found */ 270 out: 271 bus_space_unmap(iot, ioh, 16); 272 return 0; 273 } 274 275 void 276 iyattach(parent, self, aux) 277 struct device *parent, *self; 278 void *aux; 279 { 280 struct iy_softc *sc = (void *)self; 281 struct isa_attach_args *ia = aux; 282 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 283 bus_space_tag_t iot; 284 bus_space_handle_t ioh; 285 unsigned temp; 286 u_int16_t eaddr[8]; 287 u_int8_t myaddr[ETHER_ADDR_LEN]; 288 int eirq; 289 290 iot = ia->ia_iot; 291 292 if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) { 293 printf(": can't map i/o space\n"); 294 return; 295 } 296 297 sc->sc_iot = iot; 298 sc->sc_ioh = ioh; 299 300 sc->mappedirq = eepro_revirqmap[ia->ia_irq]; 301 302 /* now let's reset the chip */ 303 304 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 305 delay(200); 306 307 iyprobemem(sc); 308 309 bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); 310 ifp->if_softc = sc; 311 ifp->if_start = iystart; 312 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 313 /* XXX todo: | IFF_MULTICAST */ 314 315 ifp->if_ioctl = iyioctl; 316 ifp->if_watchdog = iywatchdog; 317 318 (void)eepromreadall(iot, ioh, eaddr, 8); 319 sc->hard_vers = eaddr[EEPW6] & EEPP_BoardRev; 320 321 #ifdef DIAGNOSTICS 322 if ((eaddr[EEPPEther0] != 323 eepromread(iot, ioh, EEPPEther0a)) && 324 (eaddr[EEPPEther1] != 325 eepromread(iot, ioh, EEPPEther1a)) && 326 (eaddr[EEPPEther2] != 327 eepromread(iot, ioh, EEPPEther2a))) 328 329 printf("EEPROM Ethernet address differs from copy\n"); 330 #endif 331 332 myaddr[1] = eaddr[EEPPEther0] & 0xFF; 333 myaddr[0] = eaddr[EEPPEther0] >> 8; 334 myaddr[3] = eaddr[EEPPEther1] & 0xFF; 335 myaddr[2] = eaddr[EEPPEther1] >> 8; 336 myaddr[5] = eaddr[EEPPEther2] & 0xFF; 337 myaddr[4] = eaddr[EEPPEther2] >> 8; 338 339 ifmedia_init(&sc->iy_ifmedia, 0, iy_mediachange, iy_mediastatus); 340 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_2, 0, NULL); 341 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL); 342 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 343 ifmedia_add(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 344 ifmedia_set(&sc->iy_ifmedia, IFM_ETHER | IFM_AUTO); 345 /* Attach the interface. */ 346 if_attach(ifp); 347 ether_ifattach(ifp, myaddr); 348 printf(": address %s, rev. %d, %d kB\n", 349 ether_sprintf(myaddr), 350 sc->hard_vers, sc->sram/1024); 351 352 eirq = eepro_irqmap[eaddr[EEPPW1] & EEPP_Int]; 353 if (eirq != ia->ia_irq) 354 printf("%s: EEPROM irq setting %d ignored\n", 355 sc->sc_dev.dv_xname, eirq); 356 357 #if NBPFILTER > 0 358 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); 359 #endif 360 361 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 362 IPL_NET, iyintr, sc); 363 364 #if NRND > 0 365 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, RND_TYPE_NET); 366 #endif 367 368 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 369 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 370 } 371 372 void 373 iystop(sc) 374 struct iy_softc *sc; 375 { 376 bus_space_tag_t iot; 377 bus_space_handle_t ioh; 378 #ifdef IYDEBUG 379 u_int p, v; 380 #endif 381 382 iot = sc->sc_iot; 383 ioh = sc->sc_ioh; 384 385 bus_space_write_1(iot, ioh, COMMAND_REG, RCV_DISABLE_CMD); 386 387 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 388 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); 389 390 bus_space_write_1(iot, ioh, COMMAND_REG, RESET_CMD); 391 delay(200); 392 #ifdef IYDEBUG 393 printf("%s: dumping tx chain (st 0x%x end 0x%x last 0x%x)\n", 394 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 395 p = sc->tx_last; 396 if (!p) 397 p = sc->tx_start; 398 do { 399 bus_space_write_2(iot, ioh, HOST_ADDR_REG, p); 400 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 401 printf("0x%04x: %b ", p, v, "\020\006Ab\010Dn"); 402 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 403 printf("0x%b", v, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL"); 404 p = bus_space_read_2(iot, ioh, MEM_PORT_REG); 405 printf(" 0x%04x", p); 406 v = bus_space_read_2(iot, ioh, MEM_PORT_REG); 407 printf(" 0x%b\n", v, "\020\020Ch"); 408 409 } while (v & 0x8000); 410 #endif 411 sc->tx_start = sc->tx_end = sc->rx_size; 412 sc->tx_last = 0; 413 sc->sc_ethercom.ec_if.if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 414 } 415 416 void 417 iyreset(sc) 418 struct iy_softc *sc; 419 { 420 int s; 421 s = splimp(); 422 iystop(sc); 423 iyinit(sc); 424 splx(s); 425 } 426 427 void 428 iyinit(sc) 429 struct iy_softc *sc; 430 { 431 int i; 432 unsigned temp; 433 struct ifnet *ifp; 434 bus_space_tag_t iot; 435 bus_space_handle_t ioh; 436 437 iot = sc->sc_iot; 438 ioh = sc->sc_ioh; 439 440 ifp = &sc->sc_ethercom.ec_if; 441 #ifdef IYDEBUG 442 printf("ifp is %p\n", ifp); 443 #endif 444 445 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 446 447 temp = bus_space_read_1(iot, ioh, EEPROM_REG); 448 if (temp & 0x10) 449 bus_space_write_1(iot, ioh, EEPROM_REG, temp & ~0x10); 450 451 for (i=0; i<6; ++i) { 452 bus_space_write_1(iot, ioh, I_ADD(i), LLADDR(ifp->if_sadl)[i]); 453 } 454 455 temp = bus_space_read_1(iot, ioh, REG1); 456 bus_space_write_1(iot, ioh, REG1, 457 temp | XMT_CHAIN_INT | XMT_CHAIN_ERRSTOP | RCV_DISCARD_BAD); 458 459 temp = bus_space_read_1(iot, ioh, RECV_MODES_REG); 460 bus_space_write_1(iot, ioh, RECV_MODES_REG, temp | MATCH_BRDCST); 461 #ifdef IYDEBUG 462 printf("%s: RECV_MODES were %b set to %b\n", 463 sc->sc_dev.dv_xname, 464 temp, "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA", 465 temp|MATCH_BRDCST, 466 "\020\1PRMSC\2NOBRDST\3SEECRC\4LENGTH\5NOSaIns\6MultiIA"); 467 #endif 468 469 470 delay(500000); /* for the hardware to test for the connector */ 471 472 temp = bus_space_read_1(iot, ioh, MEDIA_SELECT); 473 #ifdef IYDEBUG 474 printf("%s: media select was 0x%b ", sc->sc_dev.dv_xname, 475 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 476 #endif 477 temp = (temp & TEST_MODE_MASK); 478 479 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 480 case IFM_10_5: 481 temp &= ~ (BNC_BIT | TPE_BIT); 482 break; 483 484 case IFM_10_2: 485 temp = (temp & ~TPE_BIT) | BNC_BIT; 486 break; 487 488 case IFM_10_T: 489 temp = (temp & ~BNC_BIT) | TPE_BIT; 490 break; 491 default: 492 /* nothing; leave as it is */ 493 } 494 switch (temp & (BNC_BIT | TPE_BIT)) { 495 case BNC_BIT: 496 sc->iy_media = IFM_ETHER | IFM_10_2; 497 break; 498 case TPE_BIT: 499 sc->iy_media = IFM_ETHER | IFM_10_T; 500 break; 501 default: 502 sc->iy_media = IFM_ETHER | IFM_10_5; 503 } 504 505 bus_space_write_1(iot, ioh, MEDIA_SELECT, temp); 506 #ifdef IYDEBUG 507 printf("changed to 0x%b\n", 508 temp, "\020\1LnkInDis\2PolCor\3TPE\4JabberDis\5NoAport\6BNC"); 509 #endif 510 511 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 512 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS); 513 bus_space_write_1(iot, ioh, 0, BANK_SEL(1)); 514 515 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 516 bus_space_write_1(iot, ioh, INT_NO_REG, (temp & 0xf8) | sc->mappedirq); 517 518 #ifdef IYDEBUG 519 printf("%s: int no was %b\n", sc->sc_dev.dv_xname, 520 temp, "\020\4bad_irq\010flash/boot present"); 521 temp = bus_space_read_1(iot, ioh, INT_NO_REG); 522 printf("%s: int no now 0x%02x\n", sc->sc_dev.dv_xname, 523 temp, "\020\4BAD IRQ\010flash/boot present"); 524 #endif 525 526 527 bus_space_write_1(iot, ioh, RCV_LOWER_LIMIT_REG, 0); 528 bus_space_write_1(iot, ioh, RCV_UPPER_LIMIT_REG, (sc->rx_size - 2) >> 8); 529 bus_space_write_1(iot, ioh, XMT_LOWER_LIMIT_REG, sc->rx_size >> 8); 530 bus_space_write_1(iot, ioh, XMT_UPPER_LIMIT_REG, sc->sram >> 8); 531 532 temp = bus_space_read_1(iot, ioh, REG1); 533 #ifdef IYDEBUG 534 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 535 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 536 #endif 537 bus_space_write_1(iot, ioh, REG1, temp | INT_ENABLE); /* XXX what about WORD_WIDTH? */ 538 539 #ifdef IYDEBUG 540 temp = bus_space_read_1(iot, ioh, REG1); 541 printf("%s: HW access is %b\n", sc->sc_dev.dv_xname, 542 temp, "\020\2WORD_WIDTH\010INT_ENABLE"); 543 #endif 544 545 bus_space_write_1(iot, ioh, 0, BANK_SEL(0)); 546 547 bus_space_write_1(iot, ioh, INT_MASK_REG, ALL_INTS & ~(RX_BIT|TX_BIT)); 548 bus_space_write_1(iot, ioh, STATUS_REG, ALL_INTS); /* clear ints */ 549 550 bus_space_write_2(iot, ioh, RCV_START_LOW, 0); 551 bus_space_write_2(iot, ioh, RCV_STOP_LOW, sc->rx_size - 2); 552 sc->rx_start = 0; 553 554 bus_space_write_1(iot, ioh, 0, SEL_RESET_CMD); 555 delay(200); 556 557 bus_space_write_2(iot, ioh, XMT_ADDR_REG, sc->rx_size); 558 559 sc->tx_start = sc->tx_end = sc->rx_size; 560 sc->tx_last = 0; 561 562 bus_space_write_1(iot, ioh, 0, RCV_ENABLE_CMD); 563 564 ifp->if_flags |= IFF_RUNNING; 565 ifp->if_flags &= ~IFF_OACTIVE; 566 } 567 568 void 569 iystart(ifp) 570 struct ifnet *ifp; 571 { 572 struct iy_softc *sc; 573 574 575 struct mbuf *m0, *m; 576 u_int len, pad, last, end; 577 u_int llen, residual; 578 int avail; 579 caddr_t data; 580 u_int16_t resval, stat; 581 bus_space_tag_t iot; 582 bus_space_handle_t ioh; 583 584 #ifdef IYDEBUG 585 printf("iystart called\n"); 586 #endif 587 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 588 return; 589 590 sc = ifp->if_softc; 591 iot = sc->sc_iot; 592 ioh = sc->sc_ioh; 593 594 while ((m0 = ifp->if_snd.ifq_head) != NULL) { 595 #ifdef IYDEBUG 596 printf("%s: trying to write another packet to the hardware\n", 597 sc->sc_dev.dv_xname); 598 #endif 599 600 /* We need to use m->m_pkthdr.len, so require the header */ 601 if ((m0->m_flags & M_PKTHDR) == 0) 602 panic("iystart: no header mbuf"); 603 604 len = m0->m_pkthdr.len; 605 pad = len & 1; 606 607 #ifdef IYDEBUG 608 printf("%s: length is %d.\n", sc->sc_dev.dv_xname, len); 609 #endif 610 if (len < ETHER_MIN_LEN) { 611 pad = ETHER_MIN_LEN - len; 612 } 613 614 if (len + pad > ETHER_MAX_LEN) { 615 /* packet is obviously too large: toss it */ 616 ++ifp->if_oerrors; 617 IF_DEQUEUE(&ifp->if_snd, m0); 618 m_freem(m0); 619 continue; 620 } 621 622 #if NBPFILTER > 0 623 if (ifp->if_bpf) 624 bpf_mtap(ifp->if_bpf, m0); 625 #endif 626 627 avail = sc->tx_start - sc->tx_end; 628 if (avail <= 0) 629 avail += sc->tx_size; 630 631 #ifdef IYDEBUG 632 printf("%s: avail is %d.\n", sc->sc_dev.dv_xname, avail); 633 #endif 634 /* 635 * we MUST RUN at splnet here --- 636 * XXX todo: or even turn off the boards ints ??? hm... 637 */ 638 639 /* See if there is room to put another packet in the buffer. */ 640 641 if ((len+pad+2*I595_XMT_HDRLEN) > avail) { 642 #ifdef IYDEBUG 643 printf("%s: len = %d, avail = %d, setting OACTIVE\n", 644 sc->sc_dev.dv_xname, len, avail); 645 #endif 646 ifp->if_flags |= IFF_OACTIVE; 647 return; 648 } 649 650 /* we know it fits in the hardware now, so dequeue it */ 651 IF_DEQUEUE(&ifp->if_snd, m0); 652 653 last = sc->tx_end; 654 end = last + pad + len + I595_XMT_HDRLEN; 655 656 if (end >= sc->sram) { 657 if ((sc->sram - last) <= I595_XMT_HDRLEN) { 658 /* keep header in one piece */ 659 last = sc->rx_size; 660 end = last + pad + len + I595_XMT_HDRLEN; 661 } else 662 end -= sc->tx_size; 663 } 664 665 bus_space_write_2(iot, ioh, HOST_ADDR_REG, last); 666 bus_space_write_2(iot, ioh, MEM_PORT_REG, XMT_CMD); 667 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 668 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 669 bus_space_write_2(iot, ioh, MEM_PORT_REG, len + pad); 670 671 residual = resval = 0; 672 673 while ((m = m0)!=0) { 674 data = mtod(m, caddr_t); 675 llen = m->m_len; 676 if (residual) { 677 #ifdef IYDEBUG 678 printf("%s: merging residual with next mbuf.\n", 679 sc->sc_dev.dv_xname); 680 #endif 681 resval |= *data << 8; 682 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 683 --llen; 684 ++data; 685 } 686 if (llen > 1) 687 bus_space_write_multi_2(iot, ioh, MEM_PORT_REG, 688 data, llen>>1); 689 residual = llen & 1; 690 if (residual) { 691 resval = *(data + llen - 1); 692 #ifdef IYDEBUG 693 printf("%s: got odd mbuf to send.\n", 694 sc->sc_dev.dv_xname); 695 #endif 696 } 697 698 MFREE(m, m0); 699 } 700 701 if (residual) 702 bus_space_write_2(iot, ioh, MEM_PORT_REG, resval); 703 704 pad >>= 1; 705 while (pad-- > 0) 706 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 707 708 #ifdef IYDEBUG 709 printf("%s: new last = 0x%x, end = 0x%x.\n", 710 sc->sc_dev.dv_xname, last, end); 711 printf("%s: old start = 0x%x, end = 0x%x, last = 0x%x\n", 712 sc->sc_dev.dv_xname, sc->tx_start, sc->tx_end, sc->tx_last); 713 #endif 714 715 if (sc->tx_start != sc->tx_end) { 716 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_COUNT); 717 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); 718 719 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_last + XMT_CHAIN); 720 bus_space_write_2(iot, ioh, MEM_PORT_REG, last); 721 bus_space_write_2(iot, ioh, MEM_PORT_REG, stat | CHAIN); 722 #ifdef IYDEBUG 723 printf("%s: setting 0x%x to 0x%x\n", 724 sc->sc_dev.dv_xname, sc->tx_last + XMT_COUNT, 725 stat | CHAIN); 726 #endif 727 } 728 stat = bus_space_read_2(iot, ioh, MEM_PORT_REG); /* dummy read */ 729 730 /* XXX todo: enable ints here if disabled */ 731 732 ++ifp->if_opackets; 733 734 if (sc->tx_start == sc->tx_end) { 735 bus_space_write_2(iot, ioh, XMT_ADDR_REG, last); 736 bus_space_write_1(iot, ioh, 0, XMT_CMD); 737 sc->tx_start = last; 738 #ifdef IYDEBUG 739 printf("%s: writing 0x%x to XAR and giving XCMD\n", 740 sc->sc_dev.dv_xname, last); 741 #endif 742 } else { 743 bus_space_write_1(iot, ioh, 0, RESUME_XMT_CMD); 744 #ifdef IYDEBUG 745 printf("%s: giving RESUME_XCMD\n", 746 sc->sc_dev.dv_xname); 747 #endif 748 } 749 sc->tx_last = last; 750 sc->tx_end = end; 751 } 752 } 753 754 755 static __inline void 756 eepromwritebit(iot, ioh, what) 757 bus_space_tag_t iot; 758 bus_space_handle_t ioh; 759 int what; 760 { 761 bus_space_write_1(iot, ioh, EEPROM_REG, what); 762 delay(1); 763 bus_space_write_1(iot, ioh, EEPROM_REG, what|EESK); 764 delay(1); 765 bus_space_write_1(iot, ioh, EEPROM_REG, what); 766 delay(1); 767 } 768 769 static __inline int 770 eepromreadbit(iot, ioh) 771 bus_space_tag_t iot; 772 bus_space_handle_t ioh; 773 { 774 int b; 775 776 bus_space_write_1(iot, ioh, EEPROM_REG, EECS|EESK); 777 delay(1); 778 b = bus_space_read_1(iot, ioh, EEPROM_REG); 779 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); 780 delay(1); 781 782 return ((b & EEDO) != 0); 783 } 784 785 static u_int16_t 786 eepromread(iot, ioh, offset) 787 bus_space_tag_t iot; 788 bus_space_handle_t ioh; 789 int offset; 790 { 791 volatile int i; 792 volatile int j; 793 volatile u_int16_t readval; 794 795 bus_space_write_1(iot, ioh, 0, BANK_SEL(2)); 796 delay(1); 797 bus_space_write_1(iot, ioh, EEPROM_REG, EECS); /* XXXX??? */ 798 delay(1); 799 800 eepromwritebit(iot, ioh, EECS|EEDI); 801 eepromwritebit(iot, ioh, EECS|EEDI); 802 eepromwritebit(iot, ioh, EECS); 803 804 for (j=5; j>=0; --j) { 805 if ((offset>>j) & 1) 806 eepromwritebit(iot, ioh, EECS|EEDI); 807 else 808 eepromwritebit(iot, ioh, EECS); 809 } 810 811 for (readval=0, i=0; i<16; ++i) { 812 readval<<=1; 813 readval |= eepromreadbit(iot, ioh); 814 } 815 816 bus_space_write_1(iot, ioh, EEPROM_REG, 0|EESK); 817 delay(1); 818 bus_space_write_1(iot, ioh, EEPROM_REG, 0); 819 820 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 821 822 return readval; 823 } 824 825 /* 826 * Device timeout/watchdog routine. Entered if the device neglects to generate 827 * an interrupt after a transmit has been started on it. 828 */ 829 void 830 iywatchdog(ifp) 831 struct ifnet *ifp; 832 { 833 struct iy_softc *sc = ifp->if_softc; 834 835 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 836 ++sc->sc_ethercom.ec_if.if_oerrors; 837 iyreset(sc); 838 } 839 840 /* 841 * What to do upon receipt of an interrupt. 842 */ 843 int 844 iyintr(arg) 845 void *arg; 846 { 847 struct iy_softc *sc = arg; 848 bus_space_tag_t iot; 849 bus_space_handle_t ioh; 850 851 register u_short status; 852 853 iot = sc->sc_iot; 854 ioh = sc->sc_ioh; 855 856 status = bus_space_read_1(iot, ioh, STATUS_REG); 857 #ifdef IYDEBUG 858 if (status & ALL_INTS) { 859 printf("%s: got interupt %b", sc->sc_dev.dv_xname, status, 860 "\020\1RX_STP\2RX\3TX\4EXEC"); 861 if (status & EXEC_INT) 862 printf(" event %b\n", bus_space_read_1(iot, ioh, 0), 863 "\020\6ABORT"); 864 else 865 printf("\n"); 866 } 867 #endif 868 if (((status & (RX_INT | TX_INT)) == 0)) 869 return 0; 870 871 if (status & RX_INT) { 872 iy_intr_rx(sc); 873 bus_space_write_1(iot, ioh, STATUS_REG, RX_INT); 874 } else if (status & TX_INT) { 875 iy_intr_tx(sc); 876 bus_space_write_1(iot, ioh, STATUS_REG, TX_INT); 877 } 878 879 #if NRND > 0 880 rnd_add_uint32(&sc->rnd_source, status); 881 #endif 882 883 return 1; 884 } 885 886 void 887 iyget(sc, iot, ioh, rxlen) 888 struct iy_softc *sc; 889 bus_space_tag_t iot; 890 bus_space_handle_t ioh; 891 int rxlen; 892 { 893 struct mbuf *m, *top, **mp; 894 struct ether_header *eh; 895 struct ifnet *ifp; 896 int len; 897 898 ifp = &sc->sc_ethercom.ec_if; 899 900 MGETHDR(m, M_DONTWAIT, MT_DATA); 901 if (m == 0) 902 goto dropped; 903 m->m_pkthdr.rcvif = ifp; 904 m->m_pkthdr.len = rxlen; 905 len = MHLEN; 906 top = 0; 907 mp = ⊤ 908 909 while (rxlen > 0) { 910 if (top) { 911 MGET(m, M_DONTWAIT, MT_DATA); 912 if (m == 0) { 913 m_freem(top); 914 goto dropped; 915 } 916 len = MLEN; 917 } 918 if (rxlen >= MINCLSIZE) { 919 MCLGET(m, M_DONTWAIT); 920 if ((m->m_flags & M_EXT) == 0) { 921 m_free(m); 922 m_freem(top); 923 goto dropped; 924 } 925 len = MCLBYTES; 926 } 927 len = min(rxlen, len); 928 if (len > 1) { 929 len &= ~1; 930 931 bus_space_read_multi_2(iot, ioh, MEM_PORT_REG, 932 mtod(m, caddr_t), len/2); 933 } else { 934 #ifdef IYDEBUG 935 printf("%s: received odd mbuf\n", sc->sc_dev.dv_xname); 936 #endif 937 *(mtod(m, caddr_t)) = bus_space_read_2(iot, ioh, 938 MEM_PORT_REG); 939 } 940 m->m_len = len; 941 rxlen -= len; 942 *mp = m; 943 mp = &m->m_next; 944 } 945 /* XXX receive the top here */ 946 ++ifp->if_ipackets; 947 948 eh = mtod(top, struct ether_header *); 949 950 #if NBPFILTER > 0 951 if (ifp->if_bpf) { 952 bpf_mtap(ifp->if_bpf, top); 953 if ((ifp->if_flags & IFF_PROMISC) && 954 (eh->ether_dhost[0] & 1) == 0 && 955 bcmp(eh->ether_dhost, 956 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 957 sizeof(eh->ether_dhost)) != 0) { 958 959 m_freem(top); 960 return; 961 } 962 } 963 #endif 964 m_adj(top, sizeof(struct ether_header)); 965 ether_input(ifp, eh, top); 966 return; 967 968 dropped: 969 ++ifp->if_ierrors; 970 return; 971 } 972 void 973 iy_intr_rx(sc) 974 struct iy_softc *sc; 975 { 976 struct ifnet *ifp; 977 bus_space_tag_t iot; 978 bus_space_handle_t ioh; 979 980 u_int rxadrs, rxevnt, rxstatus, rxnext, rxlen; 981 982 iot = sc->sc_iot; 983 ioh = sc->sc_ioh; 984 ifp = &sc->sc_ethercom.ec_if; 985 986 rxadrs = sc->rx_start; 987 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxadrs); 988 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 989 rxnext = 0; 990 991 while (rxevnt == RCV_DONE) { 992 rxstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 993 rxnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 994 rxlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 995 #ifdef IYDEBUG 996 printf("%s: pck at 0x%04x stat %b next 0x%x len 0x%x\n", 997 sc->sc_dev.dv_xname, rxadrs, rxstatus, 998 "\020\1RCLD\2IA_MCH\010SHORT\011OVRN\013ALGERR" 999 "\014CRCERR\015LENERR\016RCVOK\020TYP", 1000 rxnext, rxlen); 1001 #endif 1002 iyget(sc, iot, ioh, rxlen); 1003 1004 /* move stop address */ 1005 bus_space_write_2(iot, ioh, RCV_STOP_LOW, 1006 rxnext == 0 ? sc->rx_size - 2 : rxnext - 2); 1007 1008 bus_space_write_2(iot, ioh, HOST_ADDR_REG, rxnext); 1009 rxadrs = rxnext; 1010 rxevnt = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1011 } 1012 sc->rx_start = rxnext; 1013 } 1014 1015 void 1016 iy_intr_tx(sc) 1017 struct iy_softc *sc; 1018 { 1019 bus_space_tag_t iot; 1020 bus_space_handle_t ioh; 1021 struct ifnet *ifp; 1022 u_int txstatus, txstat2, txlen, txnext; 1023 1024 ifp = &sc->sc_ethercom.ec_if; 1025 iot = sc->sc_iot; 1026 ioh = sc->sc_ioh; 1027 1028 while (sc->tx_start != sc->tx_end) { 1029 bus_space_write_2(iot, ioh, HOST_ADDR_REG, sc->tx_start); 1030 txstatus = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1031 if ((txstatus & (TX_DONE|CMD_MASK)) != (TX_DONE|XMT_CMD)) 1032 break; 1033 1034 txstat2 = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1035 txnext = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1036 txlen = bus_space_read_2(iot, ioh, MEM_PORT_REG); 1037 #ifdef IYDEBUG 1038 printf("txstat 0x%x stat2 0x%b next 0x%x len 0x%x\n", 1039 txstatus, txstat2, "\020\6MAX_COL\7HRT_BEAT\010TX_DEF" 1040 "\011UND_RUN\012JERR\013LST_CRS\014LTCOL\016TX_OK\020COLL", 1041 txnext, txlen); 1042 #endif 1043 if (txlen & CHAIN) 1044 sc->tx_start = txnext; 1045 else 1046 sc->tx_start = sc->tx_end; 1047 ifp->if_flags &= ~IFF_OACTIVE; 1048 1049 if ((txstat2 & 0x2000) == 0) 1050 ++ifp->if_oerrors; 1051 if (txstat2 & 0x000f) 1052 ifp->if_oerrors += txstat2 & 0x000f; 1053 } 1054 ifp->if_flags &= ~IFF_OACTIVE; 1055 } 1056 1057 #if 0 1058 /* 1059 * Compare two Ether/802 addresses for equality, inlined and unrolled for 1060 * speed. I'd love to have an inline assembler version of this... 1061 */ 1062 static inline int 1063 ether_equal(one, two) 1064 u_char *one, *two; 1065 { 1066 1067 if (one[0] != two[0] || one[1] != two[1] || one[2] != two[2] || 1068 one[3] != two[3] || one[4] != two[4] || one[5] != two[5]) 1069 return 0; 1070 return 1; 1071 } 1072 1073 /* 1074 * Check for a valid address. to_bpf is filled in with one of the following: 1075 * 0 -> BPF doesn't get this packet 1076 * 1 -> BPF does get this packet 1077 * 2 -> BPF does get this packet, but we don't 1078 * Return value is true if the packet is for us, and false otherwise. 1079 * 1080 * This routine is a mess, but it's also critical that it be as fast 1081 * as possible. It could be made cleaner if we can assume that the 1082 * only client which will fiddle with IFF_PROMISC is BPF. This is 1083 * probably a good assumption, but we do not make it here. (Yet.) 1084 */ 1085 static inline int 1086 check_eh(sc, eh, to_bpf) 1087 struct iy_softc *sc; 1088 struct ether_header *eh; 1089 int *to_bpf; 1090 { 1091 int i; 1092 1093 switch (sc->promisc) { 1094 case IFF_ALLMULTI: 1095 /* 1096 * Receiving all multicasts, but no unicasts except those 1097 * destined for us. 1098 */ 1099 #if NBPFILTER > 0 1100 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); /* BPF gets this packet if anybody cares */ 1101 #endif 1102 if (eh->ether_dhost[0] & 1) 1103 return 1; 1104 if (ether_equal(eh->ether_dhost, 1105 LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1106 return 1; 1107 return 0; 1108 1109 case IFF_PROMISC: 1110 /* 1111 * Receiving all packets. These need to be passed on to BPF. 1112 */ 1113 #if NBPFILTER > 0 1114 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1115 #endif 1116 /* If for us, accept and hand up to BPF */ 1117 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1118 return 1; 1119 1120 #if NBPFILTER > 0 1121 if (*to_bpf) 1122 *to_bpf = 2; /* we don't need to see it */ 1123 #endif 1124 1125 /* 1126 * Not a multicast, so BPF wants to see it but we don't. 1127 */ 1128 if (!(eh->ether_dhost[0] & 1)) 1129 return 1; 1130 1131 /* 1132 * If it's one of our multicast groups, accept it and pass it 1133 * up. 1134 */ 1135 for (i = 0; i < sc->mcast_count; i++) { 1136 if (ether_equal(eh->ether_dhost, (u_char *)&sc->mcast_addrs[i])) { 1137 #if NBPFILTER > 0 1138 if (*to_bpf) 1139 *to_bpf = 1; 1140 #endif 1141 return 1; 1142 } 1143 } 1144 return 1; 1145 1146 case IFF_ALLMULTI | IFF_PROMISC: 1147 /* 1148 * Acting as a multicast router, and BPF running at the same 1149 * time. Whew! (Hope this is a fast machine...) 1150 */ 1151 #if NBPFILTER > 0 1152 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1153 #endif 1154 /* We want to see multicasts. */ 1155 if (eh->ether_dhost[0] & 1) 1156 return 1; 1157 1158 /* We want to see our own packets */ 1159 if (ether_equal(eh->ether_dhost, LLADDR(sc->sc_ethercom.ec_if.if_sadl))) 1160 return 1; 1161 1162 /* Anything else goes to BPF but nothing else. */ 1163 #if NBPFILTER > 0 1164 if (*to_bpf) 1165 *to_bpf = 2; 1166 #endif 1167 return 1; 1168 1169 case 0: 1170 /* 1171 * Only accept unicast packets destined for us, or multicasts 1172 * for groups that we belong to. For now, we assume that the 1173 * '586 will only return packets that we asked it for. This 1174 * isn't strictly true (it uses hashing for the multicast 1175 * filter), but it will do in this case, and we want to get out 1176 * of here as quickly as possible. 1177 */ 1178 #if NBPFILTER > 0 1179 *to_bpf = (sc->sc_ethercom.ec_if.iy_bpf != 0); 1180 #endif 1181 return 1; 1182 } 1183 1184 #ifdef DIAGNOSTIC 1185 panic("check_eh: impossible"); 1186 #endif 1187 } 1188 #endif 1189 1190 int 1191 iyioctl(ifp, cmd, data) 1192 register struct ifnet *ifp; 1193 u_long cmd; 1194 caddr_t data; 1195 { 1196 struct iy_softc *sc; 1197 struct ifaddr *ifa; 1198 struct ifreq *ifr; 1199 int s, error = 0; 1200 1201 sc = ifp->if_softc; 1202 ifa = (struct ifaddr *)data; 1203 ifr = (struct ifreq *)data; 1204 1205 #ifdef IYDEBUG 1206 printf("iyioctl called with ifp 0x%p (%s) cmd 0x%x data 0x%p\n", 1207 ifp, ifp->if_xname, cmd, data); 1208 #endif 1209 1210 s = splimp(); 1211 1212 switch (cmd) { 1213 1214 case SIOCSIFADDR: 1215 ifp->if_flags |= IFF_UP; 1216 1217 switch (ifa->ifa_addr->sa_family) { 1218 #ifdef INET 1219 case AF_INET: 1220 iyinit(sc); 1221 arp_ifinit(ifp, ifa); 1222 break; 1223 #endif 1224 #ifdef NS 1225 /* XXX - This code is probably wrong. */ 1226 case AF_NS: 1227 { 1228 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1229 1230 if (ns_nullhost(*ina)) 1231 ina->x_host = *(union ns_host *) 1232 LLADDR(sc->sc_ethercom.ec_if.if_sadl); 1233 else 1234 bcopy(ina->x_host.c_host, 1235 LLADDR(sc->sc_ethercom.ec_if.if_sadl), 1236 ETHER_ADDR_LEN); 1237 /* Set new address. */ 1238 iyinit(sc); 1239 break; 1240 } 1241 #endif /* NS */ 1242 default: 1243 iyinit(sc); 1244 break; 1245 } 1246 break; 1247 1248 case SIOCSIFFLAGS: 1249 sc->promisc = ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI); 1250 if ((ifp->if_flags & IFF_UP) == 0 && 1251 (ifp->if_flags & IFF_RUNNING) != 0) { 1252 /* 1253 * If interface is marked down and it is running, then 1254 * stop it. 1255 */ 1256 iystop(sc); 1257 ifp->if_flags &= ~IFF_RUNNING; 1258 } else if ((ifp->if_flags & IFF_UP) != 0 && 1259 (ifp->if_flags & IFF_RUNNING) == 0) { 1260 /* 1261 * If interface is marked up and it is stopped, then 1262 * start it. 1263 */ 1264 iyinit(sc); 1265 } else { 1266 /* 1267 * Reset the interface to pick up changes in any other 1268 * flags that affect hardware registers. 1269 */ 1270 iystop(sc); 1271 iyinit(sc); 1272 } 1273 #ifdef IYDEBUGX 1274 if (ifp->if_flags & IFF_DEBUG) 1275 sc->sc_debug = IFY_ALL; 1276 else 1277 sc->sc_debug = 0; 1278 #endif 1279 break; 1280 1281 #if 0 /* XXX */ 1282 case SIOCADDMULTI: 1283 case SIOCDELMULTI: 1284 error = (cmd == SIOCADDMULTI) ? 1285 ether_addmulti(ifr, &sc->sc_ethercom): 1286 ether_delmulti(ifr, &sc->sc_ethercom); 1287 1288 if (error == ENETRESET) { 1289 /* 1290 * Multicast list has changed; set the hardware filter 1291 * accordingly. 1292 */ 1293 iy_mc_reset(sc); /* XXX */ 1294 error = 0; 1295 } 1296 break; 1297 #endif 1298 case SIOCSIFMEDIA: 1299 case SIOCGIFMEDIA: 1300 error = ifmedia_ioctl(ifp, ifr, &sc->iy_ifmedia, cmd); 1301 break; 1302 default: 1303 error = EINVAL; 1304 } 1305 splx(s); 1306 return error; 1307 } 1308 1309 int 1310 iy_mediachange(ifp) 1311 struct ifnet *ifp; 1312 { 1313 struct iy_softc *sc = ifp->if_softc; 1314 1315 if (IFM_TYPE(sc->iy_ifmedia.ifm_media) != IFM_ETHER) 1316 return EINVAL; 1317 switch(IFM_SUBTYPE(sc->iy_ifmedia.ifm_media)) { 1318 case IFM_10_5: 1319 case IFM_10_2: 1320 case IFM_10_T: 1321 case IFM_AUTO: 1322 iystop(sc); 1323 iyinit(sc); 1324 return 0; 1325 default: 1326 return EINVAL; 1327 } 1328 } 1329 1330 void 1331 iy_mediastatus(ifp, ifmr) 1332 struct ifnet *ifp; 1333 struct ifmediareq *ifmr; 1334 { 1335 struct iy_softc *sc = ifp->if_softc; 1336 1337 ifmr->ifm_active = sc->iy_media; 1338 ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE; 1339 } 1340 1341 #if 0 1342 static void 1343 iy_mc_reset(sc) 1344 struct iy_softc *sc; 1345 { 1346 struct ether_multi *enm; 1347 struct ether_multistep step; 1348 1349 /* 1350 * Step through the list of addresses. 1351 */ 1352 sc->mcast_count = 0; 1353 ETHER_FIRST_MULTI(step, &sc->sc_ethercom, enm); 1354 while (enm) { 1355 if (sc->mcast_count >= MAXMCAST || 1356 bcmp(enm->enm_addrlo, enm->enm_addrhi, 6) != 0) { 1357 sc->sc_ethercom.ec_if.if_flags |= IFF_ALLMULTI; 1358 iyioctl(&sc->sc_ethercom.ec_if, SIOCSIFFLAGS, 1359 (void *)0); 1360 goto setflag; 1361 } 1362 1363 bcopy(enm->enm_addrlo, &sc->mcast_addrs[sc->mcast_count], 6); 1364 sc->mcast_count++; 1365 ETHER_NEXT_MULTI(step, enm); 1366 } 1367 setflag: 1368 sc->want_mcsetup = 1; 1369 } 1370 1371 #ifdef IYDEBUG 1372 void 1373 print_rbd(rbd) 1374 volatile struct ie_recv_buf_desc *rbd; 1375 { 1376 1377 printf("RBD at %08lx:\nactual %04x, next %04x, buffer %08x\n" 1378 "length %04x, mbz %04x\n", (u_long)rbd, rbd->ie_rbd_actual, 1379 rbd->ie_rbd_next, rbd->ie_rbd_buffer, rbd->ie_rbd_length, 1380 rbd->mbz); 1381 } 1382 #endif 1383 #endif 1384 1385 void 1386 iyprobemem(sc) 1387 struct iy_softc *sc; 1388 { 1389 bus_space_tag_t iot; 1390 bus_space_handle_t ioh; 1391 int testing; 1392 1393 iot = sc->sc_iot; 1394 ioh = sc->sc_ioh; 1395 1396 bus_space_write_1(iot, ioh, COMMAND_REG, BANK_SEL(0)); 1397 delay(1); 1398 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 4096-2); 1399 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1400 1401 for (testing=65536; testing >= 4096; testing >>= 1) { 1402 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1403 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xdead); 1404 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1405 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xdead) { 1406 #ifdef IYMEMDEBUG 1407 printf("%s: Didn't keep 0xdead at 0x%x\n", 1408 sc->sc_dev.dv_xname, testing-2); 1409 #endif 1410 continue; 1411 } 1412 1413 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1414 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0xbeef); 1415 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing-2); 1416 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) != 0xbeef) { 1417 #ifdef IYMEMDEBUG 1418 printf("%s: Didn't keep 0xbeef at 0x%x\n", 1419 sc->sc_dev.dv_xname, testing-2); 1420 #endif 1421 continue; 1422 } 1423 1424 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1425 bus_space_write_2(iot, ioh, MEM_PORT_REG, 0); 1426 bus_space_write_2(iot, ioh, HOST_ADDR_REG, testing >> 1); 1427 bus_space_write_2(iot, ioh, MEM_PORT_REG, testing >> 1); 1428 bus_space_write_2(iot, ioh, HOST_ADDR_REG, 0); 1429 if (bus_space_read_2(iot, ioh, MEM_PORT_REG) == (testing >> 1)) { 1430 #ifdef IYMEMDEBUG 1431 printf("%s: 0x%x alias of 0x0\n", 1432 sc->sc_dev.dv_xname, testing >> 1); 1433 #endif 1434 continue; 1435 } 1436 1437 break; 1438 } 1439 1440 sc->sram = testing; 1441 1442 switch(testing) { 1443 case 65536: 1444 /* 4 NFS packets + overhead RX, 2 NFS + overhead TX */ 1445 sc->rx_size = 44*1024; 1446 break; 1447 1448 case 32768: 1449 /* 2 NFS packets + overhead RX, 1 NFS + overhead TX */ 1450 sc->rx_size = 22*1024; 1451 break; 1452 1453 case 16384: 1454 /* 1 NFS packet + overhead RX, 4 big packets TX */ 1455 sc->rx_size = 10*1024; 1456 break; 1457 default: 1458 sc->rx_size = testing/2; 1459 break; 1460 } 1461 sc->tx_size = testing - sc->rx_size; 1462 } 1463 1464 static int 1465 eepromreadall(iot, ioh, wordp, maxi) 1466 bus_space_tag_t iot; 1467 bus_space_handle_t ioh; 1468 u_int16_t *wordp; 1469 int maxi; 1470 { 1471 int i; 1472 u_int16_t checksum, tmp; 1473 1474 checksum = 0; 1475 1476 for (i=0; i<EEPP_LENGTH; ++i) { 1477 tmp = eepromread(iot, ioh, i); 1478 checksum += tmp; 1479 if (i<maxi) 1480 wordp[i] = tmp; 1481 } 1482 1483 if (checksum != EEPP_CHKSUM) { 1484 #ifdef IYDEBUG 1485 printf("wrong EEPROM checksum 0x%x should be 0x%x\n", 1486 checksum, EEPP_CHKSUM); 1487 #endif 1488 return 1; 1489 } 1490 return 0; 1491 } 1492
Indexes created Thu Sep 25 16:09:42 GMT 2025