if_eg.c revision 1.57
1 /* $NetBSD: if_eg.c,v 1.57 2002/01/07 21:47:06 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Dean Huxley <dean (at) fsa.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Dean Huxley. 18 * 4. The name of Dean Huxley may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 /* 33 * Support for 3Com 3c505 Etherlink+ card. 34 */ 35 36 /* 37 * To do: 38 * - multicast 39 * - promiscuous 40 */ 41 42 #include <sys/cdefs.h> 43 __KERNEL_RCSID(0, "$NetBSD: if_eg.c,v 1.57 2002/01/07 21:47:06 thorpej Exp $"); 44 45 #include "opt_inet.h" 46 #include "opt_ns.h" 47 #include "bpfilter.h" 48 #include "rnd.h" 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/mbuf.h> 53 #include <sys/socket.h> 54 #include <sys/ioctl.h> 55 #include <sys/errno.h> 56 #include <sys/syslog.h> 57 #include <sys/select.h> 58 #include <sys/device.h> 59 #if NRND > 0 60 #include <sys/rnd.h> 61 #endif 62 63 #include <net/if.h> 64 #include <net/if_dl.h> 65 #include <net/if_types.h> 66 67 #include <net/if_ether.h> 68 69 #ifdef INET 70 #include <netinet/in.h> 71 #include <netinet/in_systm.h> 72 #include <netinet/in_var.h> 73 #include <netinet/ip.h> 74 #include <netinet/if_inarp.h> 75 #endif 76 77 #ifdef NS 78 #include <netns/ns.h> 79 #include <netns/ns_if.h> 80 #endif 81 82 #if NBPFILTER > 0 83 #include <net/bpf.h> 84 #include <net/bpfdesc.h> 85 #endif 86 87 #include <machine/cpu.h> 88 #include <machine/intr.h> 89 #include <machine/bus.h> 90 91 #include <dev/isa/isavar.h> 92 #include <dev/isa/if_egreg.h> 93 #include <dev/isa/elink.h> 94 95 /* for debugging convenience */ 96 #ifdef EGDEBUG 97 #define DPRINTF(x) printf x 98 #else 99 #define DPRINTF(x) 100 #endif 101 102 #define EG_INLEN 10 103 #define EG_BUFLEN 0x0670 104 105 #define EG_PCBLEN 64 106 107 /* 108 * Ethernet software status per interface. 109 */ 110 struct eg_softc { 111 struct device sc_dev; 112 void *sc_ih; 113 struct ethercom sc_ethercom; /* Ethernet common part */ 114 bus_space_tag_t sc_iot; /* bus space identifier */ 115 bus_space_handle_t sc_ioh; /* i/o handle */ 116 u_int8_t eg_rom_major; /* Cards ROM version (major number) */ 117 u_int8_t eg_rom_minor; /* Cards ROM version (minor number) */ 118 short eg_ram; /* Amount of RAM on the card */ 119 u_int8_t eg_pcb[EG_PCBLEN]; /* Primary Command Block buffer */ 120 u_int8_t eg_incount; /* Number of buffers currently used */ 121 caddr_t eg_inbuf; /* Incoming packet buffer */ 122 caddr_t eg_outbuf; /* Outgoing packet buffer */ 123 124 #if NRND > 0 125 rndsource_element_t rnd_source; 126 #endif 127 }; 128 129 int egprobe __P((struct device *, struct cfdata *, void *)); 130 void egattach __P((struct device *, struct device *, void *)); 131 132 struct cfattach eg_ca = { 133 sizeof(struct eg_softc), egprobe, egattach 134 }; 135 136 int egintr __P((void *)); 137 void eginit __P((struct eg_softc *)); 138 int egioctl __P((struct ifnet *, u_long, caddr_t)); 139 void egrecv __P((struct eg_softc *)); 140 void egstart __P((struct ifnet *)); 141 void egwatchdog __P((struct ifnet *)); 142 void egreset __P((struct eg_softc *)); 143 void egread __P((struct eg_softc *, caddr_t, int)); 144 struct mbuf *egget __P((struct eg_softc *, caddr_t, int)); 145 void egstop __P((struct eg_softc *)); 146 147 static inline void egprintpcb __P((u_int8_t *)); 148 static inline void egprintstat __P((u_char)); 149 static int egoutPCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t)); 150 static int egreadPCBstat __P((bus_space_tag_t, bus_space_handle_t, u_int8_t)); 151 static int egreadPCBready __P((bus_space_tag_t, bus_space_handle_t)); 152 static int egwritePCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *)); 153 static int egreadPCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *)); 154 155 /* 156 * Support stuff 157 */ 158 159 static inline void 160 egprintpcb(pcb) 161 u_int8_t *pcb; 162 { 163 int i; 164 165 for (i = 0; i < pcb[1] + 2; i++) 166 DPRINTF(("pcb[%2d] = %x\n", i, pcb[i])); 167 } 168 169 170 static inline void 171 egprintstat(b) 172 u_char b; 173 { 174 DPRINTF(("%s %s %s %s %s %s %s\n", 175 (b & EG_STAT_HCRE)?"HCRE":"", 176 (b & EG_STAT_ACRF)?"ACRF":"", 177 (b & EG_STAT_DIR )?"DIR ":"", 178 (b & EG_STAT_DONE)?"DONE":"", 179 (b & EG_STAT_ASF3)?"ASF3":"", 180 (b & EG_STAT_ASF2)?"ASF2":"", 181 (b & EG_STAT_ASF1)?"ASF1":"")); 182 } 183 184 static int 185 egoutPCB(iot, ioh, b) 186 bus_space_tag_t iot; 187 bus_space_handle_t ioh; 188 u_int8_t b; 189 { 190 int i; 191 192 for (i=0; i < 4000; i++) { 193 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) { 194 bus_space_write_1(iot, ioh, EG_COMMAND, b); 195 return 0; 196 } 197 delay(10); 198 } 199 DPRINTF(("egoutPCB failed\n")); 200 return 1; 201 } 202 203 static int 204 egreadPCBstat(iot, ioh, statb) 205 bus_space_tag_t iot; 206 bus_space_handle_t ioh; 207 u_int8_t statb; 208 { 209 int i; 210 211 for (i=0; i < 5000; i++) { 212 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 213 EG_PCB_STAT) != EG_PCB_NULL) 214 break; 215 delay(10); 216 } 217 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) == statb) 218 return 0; 219 return 1; 220 } 221 222 static int 223 egreadPCBready(iot, ioh) 224 bus_space_tag_t iot; 225 bus_space_handle_t ioh; 226 { 227 int i; 228 229 for (i=0; i < 10000; i++) { 230 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) 231 return 0; 232 delay(5); 233 } 234 DPRINTF(("PCB read not ready\n")); 235 return 1; 236 } 237 238 static int 239 egwritePCB(iot, ioh, pcb) 240 bus_space_tag_t iot; 241 bus_space_handle_t ioh; 242 u_int8_t *pcb; 243 { 244 int i; 245 u_int8_t len; 246 247 bus_space_write_1(iot, ioh, EG_CONTROL, 248 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 249 250 len = pcb[1] + 2; 251 for (i = 0; i < len; i++) 252 egoutPCB(iot, ioh, pcb[i]); 253 254 for (i=0; i < 4000; i++) { 255 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) 256 break; 257 delay(10); 258 } 259 260 bus_space_write_1(iot, ioh, EG_CONTROL, 261 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_DONE); 262 263 egoutPCB(iot, ioh, len); 264 265 if (egreadPCBstat(iot, ioh, EG_PCB_ACCEPT)) 266 return 1; 267 return 0; 268 } 269 270 static int 271 egreadPCB(iot, ioh, pcb) 272 bus_space_tag_t iot; 273 bus_space_handle_t ioh; 274 u_int8_t *pcb; 275 { 276 int i; 277 u_int8_t b; 278 279 bus_space_write_1(iot, ioh, EG_CONTROL, 280 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 281 282 memset(pcb, 0, EG_PCBLEN); 283 284 if (egreadPCBready(iot, ioh)) 285 return 1; 286 287 pcb[0] = bus_space_read_1(iot, ioh, EG_COMMAND); 288 289 if (egreadPCBready(iot, ioh)) 290 return 1; 291 292 pcb[1] = bus_space_read_1(iot, ioh, EG_COMMAND); 293 294 if (pcb[1] > 62) { 295 DPRINTF(("len %d too large\n", pcb[1])); 296 return 1; 297 } 298 299 for (i = 0; i < pcb[1]; i++) { 300 if (egreadPCBready(iot, ioh)) 301 return 1; 302 pcb[2+i] = bus_space_read_1(iot, ioh, EG_COMMAND); 303 } 304 if (egreadPCBready(iot, ioh)) 305 return 1; 306 if (egreadPCBstat(iot, ioh, EG_PCB_DONE)) 307 return 1; 308 if ((b = bus_space_read_1(iot, ioh, EG_COMMAND)) != pcb[1] + 2) { 309 DPRINTF(("%d != %d\n", b, pcb[1] + 2)); 310 return 1; 311 } 312 313 bus_space_write_1(iot, ioh, EG_CONTROL, 314 (bus_space_read_1(iot, ioh, EG_CONTROL) & 315 ~EG_PCB_STAT) | EG_PCB_ACCEPT); 316 317 return 0; 318 } 319 320 /* 321 * Real stuff 322 */ 323 324 int 325 egprobe(parent, match, aux) 326 struct device *parent; 327 struct cfdata *match; 328 void *aux; 329 { 330 struct isa_attach_args *ia = aux; 331 bus_space_tag_t iot = ia->ia_iot; 332 bus_space_handle_t ioh; 333 int i, rval; 334 static u_int8_t pcb[EG_PCBLEN]; 335 336 rval = 0; 337 338 if (ia->ia_nio < 1) 339 return (0); 340 if (ia->ia_nirq < 1) 341 return (0); 342 343 if (ISA_DIRECT_CONFIG(ia)) 344 return (0); 345 346 /* Disallow wildcarded i/o address. */ 347 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 348 return (0); 349 350 /* Disallow wildcarded IRQ. */ 351 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 352 return (0); 353 354 if ((ia->ia_io[0].ir_addr & ~0x07f0) != 0) { 355 DPRINTF(("Weird iobase %x\n", ia->ia_io[0].ir_addr)); 356 return 0; 357 } 358 359 /* Map i/o space. */ 360 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 361 DPRINTF(("egprobe: can't map i/o space in probe\n")); 362 return 0; 363 } 364 365 /* hard reset card */ 366 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_RESET); 367 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 368 for (i = 0; i < 5000; i++) { 369 delay(1000); 370 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 371 EG_PCB_STAT) == EG_PCB_NULL) 372 break; 373 } 374 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) != EG_PCB_NULL) { 375 DPRINTF(("egprobe: Reset failed\n")); 376 goto out; 377 } 378 pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 379 pcb[1] = 0; 380 if (egwritePCB(iot, ioh, pcb) != 0) 381 goto out; 382 383 if ((egreadPCB(iot, ioh, pcb) != 0) || 384 pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 385 pcb[1] != 0x0a) { 386 egprintpcb(pcb); 387 goto out; 388 } 389 390 ia->ia_nio = 1; 391 ia->ia_io[0].ir_size = 0x08; 392 393 ia->ia_nirq = 1; 394 395 ia->ia_niomem = 0; 396 ia->ia_ndrq = 0; 397 398 rval = 1; 399 400 out: 401 bus_space_unmap(iot, ioh, 0x08); 402 return rval; 403 } 404 405 void 406 egattach(parent, self, aux) 407 struct device *parent, *self; 408 void *aux; 409 { 410 struct eg_softc *sc = (void *)self; 411 struct isa_attach_args *ia = aux; 412 bus_space_tag_t iot = ia->ia_iot; 413 bus_space_handle_t ioh; 414 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 415 u_int8_t myaddr[ETHER_ADDR_LEN]; 416 417 printf("\n"); 418 419 /* Map i/o space. */ 420 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 421 printf("%s: can't map i/o space\n", self->dv_xname); 422 return; 423 } 424 425 sc->sc_iot = iot; 426 sc->sc_ioh = ioh; 427 428 sc->eg_pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 429 sc->eg_pcb[1] = 0; 430 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 431 printf("%s: error requesting adapter info\n", self->dv_xname); 432 return; 433 } 434 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 435 egprintpcb(sc->eg_pcb); 436 printf("%s: error reading adapter info\n", self->dv_xname); 437 return; 438 } 439 440 if (sc->eg_pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 441 sc->eg_pcb[1] != 0x0a) { 442 egprintpcb(sc->eg_pcb); 443 printf("%s: bogus adapter info\n", self->dv_xname); 444 return; 445 } 446 447 sc->eg_rom_major = sc->eg_pcb[3]; 448 sc->eg_rom_minor = sc->eg_pcb[2]; 449 sc->eg_ram = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 450 451 egstop(sc); 452 453 sc->eg_pcb[0] = EG_CMD_GETEADDR; /* Get Station address */ 454 sc->eg_pcb[1] = 0; 455 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 456 printf("%s: can't send Get Station Address\n", self->dv_xname); 457 return; 458 } 459 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 460 printf("%s: can't read station address\n", self->dv_xname); 461 egprintpcb(sc->eg_pcb); 462 return; 463 } 464 465 /* check Get station address response */ 466 if (sc->eg_pcb[0] != EG_RSP_GETEADDR || sc->eg_pcb[1] != 0x06) { 467 printf("%s: card responded with garbage (1)\n", 468 self->dv_xname); 469 egprintpcb(sc->eg_pcb); 470 return; 471 } 472 memcpy(myaddr, &sc->eg_pcb[2], ETHER_ADDR_LEN); 473 474 printf("%s: ROM v%d.%02d %dk address %s\n", self->dv_xname, 475 sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram, 476 ether_sprintf(myaddr)); 477 478 sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */ 479 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 480 printf("%s: can't send Set Station Address\n", self->dv_xname); 481 return; 482 } 483 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 484 printf("%s: can't read Set Station Address status\n", 485 self->dv_xname); 486 egprintpcb(sc->eg_pcb); 487 return; 488 } 489 if (sc->eg_pcb[0] != EG_RSP_SETEADDR || sc->eg_pcb[1] != 0x02 || 490 sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) { 491 printf("%s: card responded with garbage (2)\n", 492 self->dv_xname); 493 egprintpcb(sc->eg_pcb); 494 return; 495 } 496 497 /* Initialize ifnet structure. */ 498 strcpy(ifp->if_xname, sc->sc_dev.dv_xname); 499 ifp->if_softc = sc; 500 ifp->if_start = egstart; 501 ifp->if_ioctl = egioctl; 502 ifp->if_watchdog = egwatchdog; 503 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 504 IFQ_SET_READY(&ifp->if_snd); 505 506 /* Now we can attach the interface. */ 507 if_attach(ifp); 508 ether_ifattach(ifp, myaddr); 509 510 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 511 IST_EDGE, IPL_NET, egintr, sc); 512 513 #if NRND > 0 514 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 515 RND_TYPE_NET, 0); 516 #endif 517 } 518 519 void 520 eginit(sc) 521 struct eg_softc *sc; 522 { 523 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 524 bus_space_tag_t iot = sc->sc_iot; 525 bus_space_handle_t ioh = sc->sc_ioh; 526 527 /* soft reset the board */ 528 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_FLSH); 529 delay(100); 530 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_ATTN); 531 delay(100); 532 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 533 delay(200); 534 535 sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */ 536 sc->eg_pcb[1] = 2; 537 sc->eg_pcb[2] = 3; /* receive broadcast & multicast */ 538 sc->eg_pcb[3] = 0; 539 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) 540 printf("%s: can't send Configure 82586\n", 541 sc->sc_dev.dv_xname); 542 543 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 544 printf("%s: can't read Configure 82586 status\n", 545 sc->sc_dev.dv_xname); 546 egprintpcb(sc->eg_pcb); 547 } else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) 548 printf("%s: configure card command failed\n", 549 sc->sc_dev.dv_xname); 550 551 if (sc->eg_inbuf == NULL) { 552 sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 553 if (sc->eg_inbuf == NULL) { 554 printf("%s: can't allocate inbuf\n", 555 sc->sc_dev.dv_xname); 556 panic("eginit"); 557 } 558 } 559 sc->eg_incount = 0; 560 561 if (sc->eg_outbuf == NULL) { 562 sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 563 if (sc->eg_outbuf == NULL) { 564 printf("%s: can't allocate outbuf\n", 565 sc->sc_dev.dv_xname); 566 panic("eginit"); 567 } 568 } 569 570 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_CMDE); 571 572 sc->eg_incount = 0; 573 egrecv(sc); 574 575 /* Interface is now `running', with no output active. */ 576 ifp->if_flags |= IFF_RUNNING; 577 ifp->if_flags &= ~IFF_OACTIVE; 578 579 /* Attempt to start output, if any. */ 580 egstart(ifp); 581 } 582 583 void 584 egrecv(sc) 585 struct eg_softc *sc; 586 { 587 588 while (sc->eg_incount < EG_INLEN) { 589 sc->eg_pcb[0] = EG_CMD_RECVPACKET; 590 sc->eg_pcb[1] = 0x08; 591 sc->eg_pcb[2] = 0; /* address not used.. we send zero */ 592 sc->eg_pcb[3] = 0; 593 sc->eg_pcb[4] = 0; 594 sc->eg_pcb[5] = 0; 595 sc->eg_pcb[6] = EG_BUFLEN & 0xff; /* our buffer size */ 596 sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff; 597 sc->eg_pcb[8] = 0; /* timeout, 0 == none */ 598 sc->eg_pcb[9] = 0; 599 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) 600 break; 601 sc->eg_incount++; 602 } 603 } 604 605 void 606 egstart(ifp) 607 struct ifnet *ifp; 608 { 609 struct eg_softc *sc = ifp->if_softc; 610 bus_space_tag_t iot = sc->sc_iot; 611 bus_space_handle_t ioh = sc->sc_ioh; 612 struct mbuf *m0, *m; 613 caddr_t buffer; 614 int len; 615 u_int16_t *ptr; 616 617 /* Don't transmit if interface is busy or not running */ 618 if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING) 619 return; 620 621 loop: 622 /* Dequeue the next datagram. */ 623 IFQ_DEQUEUE(&ifp->if_snd, m0); 624 if (m0 == 0) 625 return; 626 627 ifp->if_flags |= IFF_OACTIVE; 628 629 /* We need to use m->m_pkthdr.len, so require the header */ 630 if ((m0->m_flags & M_PKTHDR) == 0) { 631 printf("%s: no header mbuf\n", sc->sc_dev.dv_xname); 632 panic("egstart"); 633 } 634 len = max(m0->m_pkthdr.len, ETHER_MIN_LEN - ETHER_CRC_LEN); 635 636 #if NBPFILTER > 0 637 if (ifp->if_bpf) 638 bpf_mtap(ifp->if_bpf, m0); 639 #endif 640 641 sc->eg_pcb[0] = EG_CMD_SENDPACKET; 642 sc->eg_pcb[1] = 0x06; 643 sc->eg_pcb[2] = 0; /* address not used, we send zero */ 644 sc->eg_pcb[3] = 0; 645 sc->eg_pcb[4] = 0; 646 sc->eg_pcb[5] = 0; 647 sc->eg_pcb[6] = len; /* length of packet */ 648 sc->eg_pcb[7] = len >> 8; 649 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 650 printf("%s: can't send Send Packet command\n", 651 sc->sc_dev.dv_xname); 652 ifp->if_oerrors++; 653 ifp->if_flags &= ~IFF_OACTIVE; 654 m_freem(m0); 655 goto loop; 656 } 657 658 buffer = sc->eg_outbuf; 659 for (m = m0; m != 0; m = m->m_next) { 660 memcpy(buffer, mtod(m, caddr_t), m->m_len); 661 buffer += m->m_len; 662 } 663 664 /* set direction bit: host -> adapter */ 665 bus_space_write_1(iot, ioh, EG_CONTROL, 666 bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_CTL_DIR); 667 668 for (ptr = (u_int16_t *) sc->eg_outbuf; len > 0; len -= 2) { 669 bus_space_write_2(iot, ioh, EG_DATA, *ptr++); 670 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HRDY)) 671 ; /* XXX need timeout here */ 672 } 673 674 m_freem(m0); 675 } 676 677 int 678 egintr(arg) 679 void *arg; 680 { 681 struct eg_softc *sc = arg; 682 bus_space_tag_t iot = sc->sc_iot; 683 bus_space_handle_t ioh = sc->sc_ioh; 684 int i, len, serviced; 685 u_int16_t *ptr; 686 687 serviced = 0; 688 689 while (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) { 690 egreadPCB(iot, ioh, sc->eg_pcb); 691 switch (sc->eg_pcb[0]) { 692 case EG_RSP_RECVPACKET: 693 len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 694 695 /* Set direction bit : Adapter -> host */ 696 bus_space_write_1(iot, ioh, EG_CONTROL, 697 bus_space_read_1(iot, ioh, EG_CONTROL) | EG_CTL_DIR); 698 699 for (ptr = (u_int16_t *) sc->eg_inbuf; 700 len > 0; len -= 2) { 701 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & 702 EG_STAT_HRDY)) 703 ; 704 *ptr++ = bus_space_read_2(iot, ioh, EG_DATA); 705 } 706 707 len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8); 708 egread(sc, sc->eg_inbuf, len); 709 710 sc->eg_incount--; 711 egrecv(sc); 712 serviced = 1; 713 break; 714 715 case EG_RSP_SENDPACKET: 716 if (sc->eg_pcb[6] || sc->eg_pcb[7]) { 717 DPRINTF(("%s: packet dropped\n", 718 sc->sc_dev.dv_xname)); 719 sc->sc_ethercom.ec_if.if_oerrors++; 720 } else 721 sc->sc_ethercom.ec_if.if_opackets++; 722 sc->sc_ethercom.ec_if.if_collisions += 723 sc->eg_pcb[8] & 0xf; 724 sc->sc_ethercom.ec_if.if_flags &= ~IFF_OACTIVE; 725 egstart(&sc->sc_ethercom.ec_if); 726 serviced = 1; 727 break; 728 729 /* XXX byte-order and type-size bugs here... */ 730 case EG_RSP_GETSTATS: 731 DPRINTF(("%s: Card Statistics\n", 732 sc->sc_dev.dv_xname)); 733 memcpy(&i, &sc->eg_pcb[2], sizeof(i)); 734 DPRINTF(("Receive Packets %d\n", i)); 735 memcpy(&i, &sc->eg_pcb[6], sizeof(i)); 736 DPRINTF(("Transmit Packets %d\n", i)); 737 DPRINTF(("CRC errors %d\n", 738 *(short *) &sc->eg_pcb[10])); 739 DPRINTF(("alignment errors %d\n", 740 *(short *) &sc->eg_pcb[12])); 741 DPRINTF(("no resources errors %d\n", 742 *(short *) &sc->eg_pcb[14])); 743 DPRINTF(("overrun errors %d\n", 744 *(short *) &sc->eg_pcb[16])); 745 serviced = 1; 746 break; 747 748 default: 749 printf("%s: egintr: Unknown response %x??\n", 750 sc->sc_dev.dv_xname, sc->eg_pcb[0]); 751 egprintpcb(sc->eg_pcb); 752 break; 753 } 754 755 #if NRND > 0 756 rnd_add_uint32(&sc->rnd_source, sc->eg_pcb[0]); 757 #endif 758 } 759 760 return serviced; 761 } 762 763 /* 764 * Pass a packet up to the higher levels. 765 */ 766 void 767 egread(sc, buf, len) 768 struct eg_softc *sc; 769 caddr_t buf; 770 int len; 771 { 772 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 773 struct mbuf *m; 774 775 if (len <= sizeof(struct ether_header) || 776 len > ETHER_MAX_LEN) { 777 printf("%s: invalid packet size %d; dropping\n", 778 sc->sc_dev.dv_xname, len); 779 ifp->if_ierrors++; 780 return; 781 } 782 783 /* Pull packet off interface. */ 784 m = egget(sc, buf, len); 785 if (m == 0) { 786 ifp->if_ierrors++; 787 return; 788 } 789 790 ifp->if_ipackets++; 791 792 #if NBPFILTER > 0 793 /* 794 * Check if there's a BPF listener on this interface. 795 * If so, hand off the raw packet to BPF. 796 */ 797 if (ifp->if_bpf) 798 bpf_mtap(ifp->if_bpf, m); 799 #endif 800 801 (*ifp->if_input)(ifp, m); 802 } 803 804 /* 805 * convert buf into mbufs 806 */ 807 struct mbuf * 808 egget(sc, buf, totlen) 809 struct eg_softc *sc; 810 caddr_t buf; 811 int totlen; 812 { 813 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 814 struct mbuf *m, *m0, *newm; 815 int len; 816 817 MGETHDR(m0, M_DONTWAIT, MT_DATA); 818 if (m0 == 0) 819 return (0); 820 m0->m_pkthdr.rcvif = ifp; 821 m0->m_pkthdr.len = totlen; 822 len = MHLEN; 823 m = m0; 824 825 while (totlen > 0) { 826 if (totlen >= MINCLSIZE) { 827 MCLGET(m, M_DONTWAIT); 828 if ((m->m_flags & M_EXT) == 0) 829 goto bad; 830 len = MCLBYTES; 831 } 832 833 m->m_len = len = min(totlen, len); 834 memcpy(mtod(m, caddr_t), (caddr_t)buf, len); 835 buf += len; 836 837 totlen -= len; 838 if (totlen > 0) { 839 MGET(newm, M_DONTWAIT, MT_DATA); 840 if (newm == 0) 841 goto bad; 842 len = MLEN; 843 m = m->m_next = newm; 844 } 845 } 846 847 return (m0); 848 849 bad: 850 m_freem(m0); 851 return (0); 852 } 853 854 int 855 egioctl(ifp, cmd, data) 856 struct ifnet *ifp; 857 u_long cmd; 858 caddr_t data; 859 { 860 struct eg_softc *sc = ifp->if_softc; 861 struct ifaddr *ifa = (struct ifaddr *)data; 862 int s, error = 0; 863 864 s = splnet(); 865 866 switch (cmd) { 867 868 case SIOCSIFADDR: 869 ifp->if_flags |= IFF_UP; 870 871 switch (ifa->ifa_addr->sa_family) { 872 #ifdef INET 873 case AF_INET: 874 eginit(sc); 875 arp_ifinit(ifp, ifa); 876 break; 877 #endif 878 #ifdef NS 879 case AF_NS: 880 { 881 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 882 883 if (ns_nullhost(*ina)) 884 ina->x_host = 885 *(union ns_host *)LLADDR(ifp->if_sadl); 886 else 887 memcpy(LLADDR(ifp->if_sadl), ina->x_host.c_host, 888 ETHER_ADDR_LEN); 889 /* Set new address. */ 890 eginit(sc); 891 break; 892 } 893 #endif 894 default: 895 eginit(sc); 896 break; 897 } 898 break; 899 900 case SIOCSIFFLAGS: 901 if ((ifp->if_flags & IFF_UP) == 0 && 902 (ifp->if_flags & IFF_RUNNING) != 0) { 903 /* 904 * If interface is marked down and it is running, then 905 * stop it. 906 */ 907 egstop(sc); 908 ifp->if_flags &= ~IFF_RUNNING; 909 } else if ((ifp->if_flags & IFF_UP) != 0 && 910 (ifp->if_flags & IFF_RUNNING) == 0) { 911 /* 912 * If interface is marked up and it is stopped, then 913 * start it. 914 */ 915 eginit(sc); 916 } else { 917 sc->eg_pcb[0] = EG_CMD_GETSTATS; 918 sc->eg_pcb[1] = 0; 919 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) 920 DPRINTF(("write error\n")); 921 /* 922 * XXX deal with flags changes: 923 * IFF_MULTICAST, IFF_PROMISC, 924 * IFF_LINK0, IFF_LINK1, 925 */ 926 } 927 break; 928 929 default: 930 error = EINVAL; 931 break; 932 } 933 934 splx(s); 935 return error; 936 } 937 938 void 939 egreset(sc) 940 struct eg_softc *sc; 941 { 942 int s; 943 944 DPRINTF(("%s: egreset()\n", sc->sc_dev.dv_xname)); 945 s = splnet(); 946 egstop(sc); 947 eginit(sc); 948 splx(s); 949 } 950 951 void 952 egwatchdog(ifp) 953 struct ifnet *ifp; 954 { 955 struct eg_softc *sc = ifp->if_softc; 956 957 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 958 sc->sc_ethercom.ec_if.if_oerrors++; 959 960 egreset(sc); 961 } 962 963 void 964 egstop(sc) 965 struct eg_softc *sc; 966 { 967 968 bus_space_write_1(sc->sc_iot, sc->sc_ioh, EG_CONTROL, 0); 969 } 970
Indexes created Thu Oct 02 10:09:58 GMT 2025