if_eg.c revision 1.66.8.1
1 /* $NetBSD: if_eg.c,v 1.66.8.1 2006/09/03 15:24:10 yamt 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 1.66.8.1 2006/09/03 15:24:10 yamt 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(struct device *, struct cfdata *, void *); 130 void egattach(struct device *, struct device *, void *); 131 132 CFATTACH_DECL(eg, sizeof(struct eg_softc), 133 egprobe, egattach, NULL, NULL); 134 135 int egintr(void *); 136 void eginit(struct eg_softc *); 137 int egioctl(struct ifnet *, u_long, caddr_t); 138 void egrecv(struct eg_softc *); 139 void egstart(struct ifnet *); 140 void egwatchdog(struct ifnet *); 141 void egreset(struct eg_softc *); 142 void egread(struct eg_softc *, caddr_t, int); 143 struct mbuf *egget(struct eg_softc *, caddr_t, int); 144 void egstop(struct eg_softc *); 145 146 static inline void egprintpcb(u_int8_t *); 147 static inline void egprintstat(u_char); 148 static int egoutPCB(bus_space_tag_t, bus_space_handle_t, u_int8_t); 149 static int egreadPCBstat(bus_space_tag_t, bus_space_handle_t, u_int8_t); 150 static int egreadPCBready(bus_space_tag_t, bus_space_handle_t); 151 static int egwritePCB(bus_space_tag_t, bus_space_handle_t, u_int8_t *); 152 static int egreadPCB(bus_space_tag_t, bus_space_handle_t, u_int8_t *); 153 154 /* 155 * Support stuff 156 */ 157 158 static inline void 159 egprintpcb(pcb) 160 u_int8_t *pcb; 161 { 162 int i; 163 164 for (i = 0; i < pcb[1] + 2; i++) 165 DPRINTF(("pcb[%2d] = %x\n", i, pcb[i])); 166 } 167 168 169 static inline void 170 egprintstat(b) 171 u_char b; 172 { 173 DPRINTF(("%s %s %s %s %s %s %s\n", 174 (b & EG_STAT_HCRE)?"HCRE":"", 175 (b & EG_STAT_ACRF)?"ACRF":"", 176 (b & EG_STAT_DIR )?"DIR ":"", 177 (b & EG_STAT_DONE)?"DONE":"", 178 (b & EG_STAT_ASF3)?"ASF3":"", 179 (b & EG_STAT_ASF2)?"ASF2":"", 180 (b & EG_STAT_ASF1)?"ASF1":"")); 181 } 182 183 static int 184 egoutPCB(iot, ioh, b) 185 bus_space_tag_t iot; 186 bus_space_handle_t ioh; 187 u_int8_t b; 188 { 189 int i; 190 191 for (i=0; i < 4000; i++) { 192 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) { 193 bus_space_write_1(iot, ioh, EG_COMMAND, b); 194 return 0; 195 } 196 delay(10); 197 } 198 DPRINTF(("egoutPCB failed\n")); 199 return 1; 200 } 201 202 static int 203 egreadPCBstat(iot, ioh, statb) 204 bus_space_tag_t iot; 205 bus_space_handle_t ioh; 206 u_int8_t statb; 207 { 208 int i; 209 210 for (i=0; i < 5000; i++) { 211 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 212 EG_PCB_STAT) != EG_PCB_NULL) 213 break; 214 delay(10); 215 } 216 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) == statb) 217 return 0; 218 return 1; 219 } 220 221 static int 222 egreadPCBready(iot, ioh) 223 bus_space_tag_t iot; 224 bus_space_handle_t ioh; 225 { 226 int i; 227 228 for (i=0; i < 10000; i++) { 229 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) 230 return 0; 231 delay(5); 232 } 233 DPRINTF(("PCB read not ready\n")); 234 return 1; 235 } 236 237 static int 238 egwritePCB(iot, ioh, pcb) 239 bus_space_tag_t iot; 240 bus_space_handle_t ioh; 241 u_int8_t *pcb; 242 { 243 int i; 244 u_int8_t len; 245 246 bus_space_write_1(iot, ioh, EG_CONTROL, 247 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 248 249 len = pcb[1] + 2; 250 for (i = 0; i < len; i++) 251 egoutPCB(iot, ioh, pcb[i]); 252 253 for (i=0; i < 4000; i++) { 254 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) 255 break; 256 delay(10); 257 } 258 259 bus_space_write_1(iot, ioh, EG_CONTROL, 260 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_DONE); 261 262 egoutPCB(iot, ioh, len); 263 264 if (egreadPCBstat(iot, ioh, EG_PCB_ACCEPT)) 265 return 1; 266 return 0; 267 } 268 269 static int 270 egreadPCB(iot, ioh, pcb) 271 bus_space_tag_t iot; 272 bus_space_handle_t ioh; 273 u_int8_t *pcb; 274 { 275 int i; 276 277 bus_space_write_1(iot, ioh, EG_CONTROL, 278 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 279 280 memset(pcb, 0, EG_PCBLEN); 281 282 if (egreadPCBready(iot, ioh)) 283 return 1; 284 285 pcb[0] = bus_space_read_1(iot, ioh, EG_COMMAND); 286 287 if (egreadPCBready(iot, ioh)) 288 return 1; 289 290 pcb[1] = bus_space_read_1(iot, ioh, EG_COMMAND); 291 292 if (pcb[1] > 62) { 293 DPRINTF(("len %d too large\n", pcb[1])); 294 return 1; 295 } 296 297 for (i = 0; i < pcb[1]; i++) { 298 if (egreadPCBready(iot, ioh)) 299 return 1; 300 pcb[2+i] = bus_space_read_1(iot, ioh, EG_COMMAND); 301 } 302 if (egreadPCBready(iot, ioh)) 303 return 1; 304 if (egreadPCBstat(iot, ioh, EG_PCB_DONE)) 305 return 1; 306 if (bus_space_read_1(iot, ioh, EG_COMMAND) != pcb[1] + 2) { 307 return 1; 308 } 309 310 bus_space_write_1(iot, ioh, EG_CONTROL, 311 (bus_space_read_1(iot, ioh, EG_CONTROL) & 312 ~EG_PCB_STAT) | EG_PCB_ACCEPT); 313 314 return 0; 315 } 316 317 /* 318 * Real stuff 319 */ 320 321 int 322 egprobe(parent, match, aux) 323 struct device *parent; 324 struct cfdata *match; 325 void *aux; 326 { 327 struct isa_attach_args *ia = aux; 328 bus_space_tag_t iot = ia->ia_iot; 329 bus_space_handle_t ioh; 330 int i, rval; 331 static u_int8_t pcb[EG_PCBLEN]; 332 333 rval = 0; 334 335 if (ia->ia_nio < 1) 336 return (0); 337 if (ia->ia_nirq < 1) 338 return (0); 339 340 if (ISA_DIRECT_CONFIG(ia)) 341 return (0); 342 343 /* Disallow wildcarded i/o address. */ 344 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 345 return (0); 346 347 /* Disallow wildcarded IRQ. */ 348 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 349 return (0); 350 351 if ((ia->ia_io[0].ir_addr & ~0x07f0) != 0) { 352 DPRINTF(("Weird iobase %x\n", ia->ia_io[0].ir_addr)); 353 return 0; 354 } 355 356 /* Map i/o space. */ 357 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 358 DPRINTF(("egprobe: can't map i/o space in probe\n")); 359 return 0; 360 } 361 362 /* hard reset card */ 363 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_RESET); 364 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 365 for (i = 0; i < 5000; i++) { 366 delay(1000); 367 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 368 EG_PCB_STAT) == EG_PCB_NULL) 369 break; 370 } 371 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) != EG_PCB_NULL) { 372 DPRINTF(("egprobe: Reset failed\n")); 373 goto out; 374 } 375 pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 376 pcb[1] = 0; 377 if (egwritePCB(iot, ioh, pcb) != 0) 378 goto out; 379 380 if ((egreadPCB(iot, ioh, pcb) != 0) || 381 pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 382 pcb[1] != 0x0a) { 383 egprintpcb(pcb); 384 goto out; 385 } 386 387 ia->ia_nio = 1; 388 ia->ia_io[0].ir_size = 0x08; 389 390 ia->ia_nirq = 1; 391 392 ia->ia_niomem = 0; 393 ia->ia_ndrq = 0; 394 395 rval = 1; 396 397 out: 398 bus_space_unmap(iot, ioh, 0x08); 399 return rval; 400 } 401 402 void 403 egattach(parent, self, aux) 404 struct device *parent, *self; 405 void *aux; 406 { 407 struct eg_softc *sc = (void *)self; 408 struct isa_attach_args *ia = aux; 409 bus_space_tag_t iot = ia->ia_iot; 410 bus_space_handle_t ioh; 411 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 412 u_int8_t myaddr[ETHER_ADDR_LEN]; 413 414 printf("\n"); 415 416 /* Map i/o space. */ 417 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 418 printf("%s: can't map i/o space\n", self->dv_xname); 419 return; 420 } 421 422 sc->sc_iot = iot; 423 sc->sc_ioh = ioh; 424 425 sc->eg_pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 426 sc->eg_pcb[1] = 0; 427 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 428 printf("%s: error requesting adapter info\n", self->dv_xname); 429 return; 430 } 431 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 432 egprintpcb(sc->eg_pcb); 433 printf("%s: error reading adapter info\n", self->dv_xname); 434 return; 435 } 436 437 if (sc->eg_pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 438 sc->eg_pcb[1] != 0x0a) { 439 egprintpcb(sc->eg_pcb); 440 printf("%s: bogus adapter info\n", self->dv_xname); 441 return; 442 } 443 444 sc->eg_rom_major = sc->eg_pcb[3]; 445 sc->eg_rom_minor = sc->eg_pcb[2]; 446 sc->eg_ram = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 447 448 egstop(sc); 449 450 sc->eg_pcb[0] = EG_CMD_GETEADDR; /* Get Station address */ 451 sc->eg_pcb[1] = 0; 452 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 453 printf("%s: can't send Get Station Address\n", self->dv_xname); 454 return; 455 } 456 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 457 printf("%s: can't read station address\n", self->dv_xname); 458 egprintpcb(sc->eg_pcb); 459 return; 460 } 461 462 /* check Get station address response */ 463 if (sc->eg_pcb[0] != EG_RSP_GETEADDR || sc->eg_pcb[1] != 0x06) { 464 printf("%s: card responded with garbage (1)\n", 465 self->dv_xname); 466 egprintpcb(sc->eg_pcb); 467 return; 468 } 469 memcpy(myaddr, &sc->eg_pcb[2], ETHER_ADDR_LEN); 470 471 printf("%s: ROM v%d.%02d %dk address %s\n", self->dv_xname, 472 sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram, 473 ether_sprintf(myaddr)); 474 475 sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */ 476 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 477 printf("%s: can't send Set Station Address\n", self->dv_xname); 478 return; 479 } 480 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 481 printf("%s: can't read Set Station Address status\n", 482 self->dv_xname); 483 egprintpcb(sc->eg_pcb); 484 return; 485 } 486 if (sc->eg_pcb[0] != EG_RSP_SETEADDR || sc->eg_pcb[1] != 0x02 || 487 sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) { 488 printf("%s: card responded with garbage (2)\n", 489 self->dv_xname); 490 egprintpcb(sc->eg_pcb); 491 return; 492 } 493 494 /* Initialize ifnet structure. */ 495 strcpy(ifp->if_xname, sc->sc_dev.dv_xname); 496 ifp->if_softc = sc; 497 ifp->if_start = egstart; 498 ifp->if_ioctl = egioctl; 499 ifp->if_watchdog = egwatchdog; 500 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 501 IFQ_SET_READY(&ifp->if_snd); 502 503 /* Now we can attach the interface. */ 504 if_attach(ifp); 505 ether_ifattach(ifp, myaddr); 506 507 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 508 IST_EDGE, IPL_NET, egintr, sc); 509 510 #if NRND > 0 511 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 512 RND_TYPE_NET, 0); 513 #endif 514 } 515 516 void 517 eginit(sc) 518 struct eg_softc *sc; 519 { 520 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 521 bus_space_tag_t iot = sc->sc_iot; 522 bus_space_handle_t ioh = sc->sc_ioh; 523 524 /* soft reset the board */ 525 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_FLSH); 526 delay(100); 527 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_ATTN); 528 delay(100); 529 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 530 delay(200); 531 532 sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */ 533 sc->eg_pcb[1] = 2; 534 sc->eg_pcb[2] = 3; /* receive broadcast & multicast */ 535 sc->eg_pcb[3] = 0; 536 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) 537 printf("%s: can't send Configure 82586\n", 538 sc->sc_dev.dv_xname); 539 540 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 541 printf("%s: can't read Configure 82586 status\n", 542 sc->sc_dev.dv_xname); 543 egprintpcb(sc->eg_pcb); 544 } else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) 545 printf("%s: configure card command failed\n", 546 sc->sc_dev.dv_xname); 547 548 if (sc->eg_inbuf == NULL) { 549 sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 550 if (sc->eg_inbuf == NULL) { 551 printf("%s: can't allocate inbuf\n", 552 sc->sc_dev.dv_xname); 553 panic("eginit"); 554 } 555 } 556 sc->eg_incount = 0; 557 558 if (sc->eg_outbuf == NULL) { 559 sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 560 if (sc->eg_outbuf == NULL) { 561 printf("%s: can't allocate outbuf\n", 562 sc->sc_dev.dv_xname); 563 panic("eginit"); 564 } 565 } 566 567 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_CMDE); 568 569 sc->eg_incount = 0; 570 egrecv(sc); 571 572 /* Interface is now `running', with no output active. */ 573 ifp->if_flags |= IFF_RUNNING; 574 ifp->if_flags &= ~IFF_OACTIVE; 575 576 /* Attempt to start output, if any. */ 577 egstart(ifp); 578 } 579 580 void 581 egrecv(sc) 582 struct eg_softc *sc; 583 { 584 585 while (sc->eg_incount < EG_INLEN) { 586 sc->eg_pcb[0] = EG_CMD_RECVPACKET; 587 sc->eg_pcb[1] = 0x08; 588 sc->eg_pcb[2] = 0; /* address not used.. we send zero */ 589 sc->eg_pcb[3] = 0; 590 sc->eg_pcb[4] = 0; 591 sc->eg_pcb[5] = 0; 592 sc->eg_pcb[6] = EG_BUFLEN & 0xff; /* our buffer size */ 593 sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff; 594 sc->eg_pcb[8] = 0; /* timeout, 0 == none */ 595 sc->eg_pcb[9] = 0; 596 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) 597 break; 598 sc->eg_incount++; 599 } 600 } 601 602 void 603 egstart(ifp) 604 struct ifnet *ifp; 605 { 606 struct eg_softc *sc = ifp->if_softc; 607 bus_space_tag_t iot = sc->sc_iot; 608 bus_space_handle_t ioh = sc->sc_ioh; 609 struct mbuf *m0, *m; 610 caddr_t buffer; 611 int len; 612 u_int16_t *ptr; 613 614 /* Don't transmit if interface is busy or not running */ 615 if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING) 616 return; 617 618 loop: 619 /* Dequeue the next datagram. */ 620 IFQ_DEQUEUE(&ifp->if_snd, m0); 621 if (m0 == 0) 622 return; 623 624 ifp->if_flags |= IFF_OACTIVE; 625 626 /* We need to use m->m_pkthdr.len, so require the header */ 627 if ((m0->m_flags & M_PKTHDR) == 0) { 628 printf("%s: no header mbuf\n", sc->sc_dev.dv_xname); 629 panic("egstart"); 630 } 631 len = max(m0->m_pkthdr.len, ETHER_MIN_LEN - ETHER_CRC_LEN); 632 633 #if NBPFILTER > 0 634 if (ifp->if_bpf) 635 bpf_mtap(ifp->if_bpf, m0); 636 #endif 637 638 sc->eg_pcb[0] = EG_CMD_SENDPACKET; 639 sc->eg_pcb[1] = 0x06; 640 sc->eg_pcb[2] = 0; /* address not used, we send zero */ 641 sc->eg_pcb[3] = 0; 642 sc->eg_pcb[4] = 0; 643 sc->eg_pcb[5] = 0; 644 sc->eg_pcb[6] = len; /* length of packet */ 645 sc->eg_pcb[7] = len >> 8; 646 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 647 printf("%s: can't send Send Packet command\n", 648 sc->sc_dev.dv_xname); 649 ifp->if_oerrors++; 650 ifp->if_flags &= ~IFF_OACTIVE; 651 m_freem(m0); 652 goto loop; 653 } 654 655 buffer = sc->eg_outbuf; 656 for (m = m0; m != 0; m = m->m_next) { 657 memcpy(buffer, mtod(m, caddr_t), m->m_len); 658 buffer += m->m_len; 659 } 660 if (len > m0->m_pkthdr.len) 661 memset(buffer, 0, len - m0->m_pkthdr.len); 662 663 /* set direction bit: host -> adapter */ 664 bus_space_write_1(iot, ioh, EG_CONTROL, 665 bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_CTL_DIR); 666 667 for (ptr = (u_int16_t *) sc->eg_outbuf; len > 0; len -= 2) { 668 bus_space_write_2(iot, ioh, EG_DATA, *ptr++); 669 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HRDY)) 670 ; /* XXX need timeout here */ 671 } 672 673 m_freem(m0); 674 } 675 676 int 677 egintr(arg) 678 void *arg; 679 { 680 struct eg_softc *sc = arg; 681 bus_space_tag_t iot = sc->sc_iot; 682 bus_space_handle_t ioh = sc->sc_ioh; 683 int i, len, serviced; 684 u_int16_t *ptr; 685 686 serviced = 0; 687 688 while (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) { 689 egreadPCB(iot, ioh, sc->eg_pcb); 690 switch (sc->eg_pcb[0]) { 691 case EG_RSP_RECVPACKET: 692 len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 693 694 /* Set direction bit : Adapter -> host */ 695 bus_space_write_1(iot, ioh, EG_CONTROL, 696 bus_space_read_1(iot, ioh, EG_CONTROL) | EG_CTL_DIR); 697 698 for (ptr = (u_int16_t *) sc->eg_inbuf; 699 len > 0; len -= 2) { 700 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & 701 EG_STAT_HRDY)) 702 ; 703 *ptr++ = bus_space_read_2(iot, ioh, EG_DATA); 704 } 705 706 len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8); 707 egread(sc, sc->eg_inbuf, len); 708 709 sc->eg_incount--; 710 egrecv(sc); 711 serviced = 1; 712 break; 713 714 case EG_RSP_SENDPACKET: 715 if (sc->eg_pcb[6] || sc->eg_pcb[7]) { 716 DPRINTF(("%s: packet dropped\n", 717 sc->sc_dev.dv_xname)); 718 sc->sc_ethercom.ec_if.if_oerrors++; 719 } else 720 sc->sc_ethercom.ec_if.if_opackets++; 721 sc->sc_ethercom.ec_if.if_collisions += 722 sc->eg_pcb[8] & 0xf; 723 sc->sc_ethercom.ec_if.if_flags &= ~IFF_OACTIVE; 724 egstart(&sc->sc_ethercom.ec_if); 725 serviced = 1; 726 break; 727 728 /* XXX byte-order and type-size bugs here... */ 729 case EG_RSP_GETSTATS: 730 DPRINTF(("%s: Card Statistics\n", 731 sc->sc_dev.dv_xname)); 732 memcpy(&i, &sc->eg_pcb[2], sizeof(i)); 733 DPRINTF(("Receive Packets %d\n", i)); 734 memcpy(&i, &sc->eg_pcb[6], sizeof(i)); 735 DPRINTF(("Transmit Packets %d\n", i)); 736 DPRINTF(("CRC errors %d\n", 737 *(short *) &sc->eg_pcb[10])); 738 DPRINTF(("alignment errors %d\n", 739 *(short *) &sc->eg_pcb[12])); 740 DPRINTF(("no resources errors %d\n", 741 *(short *) &sc->eg_pcb[14])); 742 DPRINTF(("overrun errors %d\n", 743 *(short *) &sc->eg_pcb[16])); 744 serviced = 1; 745 break; 746 747 default: 748 printf("%s: egintr: Unknown response %x??\n", 749 sc->sc_dev.dv_xname, sc->eg_pcb[0]); 750 egprintpcb(sc->eg_pcb); 751 break; 752 } 753 754 #if NRND > 0 755 rnd_add_uint32(&sc->rnd_source, sc->eg_pcb[0]); 756 #endif 757 } 758 759 return serviced; 760 } 761 762 /* 763 * Pass a packet up to the higher levels. 764 */ 765 void 766 egread(sc, buf, len) 767 struct eg_softc *sc; 768 caddr_t buf; 769 int len; 770 { 771 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 772 struct mbuf *m; 773 774 if (len <= sizeof(struct ether_header) || 775 len > ETHER_MAX_LEN) { 776 printf("%s: invalid packet size %d; dropping\n", 777 sc->sc_dev.dv_xname, len); 778 ifp->if_ierrors++; 779 return; 780 } 781 782 /* Pull packet off interface. */ 783 m = egget(sc, buf, len); 784 if (m == 0) { 785 ifp->if_ierrors++; 786 return; 787 } 788 789 ifp->if_ipackets++; 790 791 #if NBPFILTER > 0 792 /* 793 * Check if there's a BPF listener on this interface. 794 * If so, hand off the raw packet to BPF. 795 */ 796 if (ifp->if_bpf) 797 bpf_mtap(ifp->if_bpf, m); 798 #endif 799 800 (*ifp->if_input)(ifp, m); 801 } 802 803 /* 804 * convert buf into mbufs 805 */ 806 struct mbuf * 807 egget(sc, buf, totlen) 808 struct eg_softc *sc; 809 caddr_t buf; 810 int totlen; 811 { 812 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 813 struct mbuf *m, *m0, *newm; 814 int len; 815 816 MGETHDR(m0, M_DONTWAIT, MT_DATA); 817 if (m0 == 0) 818 return (0); 819 m0->m_pkthdr.rcvif = ifp; 820 m0->m_pkthdr.len = totlen; 821 len = MHLEN; 822 m = m0; 823 824 while (totlen > 0) { 825 if (totlen >= MINCLSIZE) { 826 MCLGET(m, M_DONTWAIT); 827 if ((m->m_flags & M_EXT) == 0) 828 goto bad; 829 len = MCLBYTES; 830 } 831 832 m->m_len = len = min(totlen, len); 833 memcpy(mtod(m, caddr_t), (caddr_t)buf, len); 834 buf += len; 835 836 totlen -= len; 837 if (totlen > 0) { 838 MGET(newm, M_DONTWAIT, MT_DATA); 839 if (newm == 0) 840 goto bad; 841 len = MLEN; 842 m = m->m_next = newm; 843 } 844 } 845 846 return (m0); 847 848 bad: 849 m_freem(m0); 850 return (0); 851 } 852 853 int 854 egioctl(ifp, cmd, data) 855 struct ifnet *ifp; 856 u_long cmd; 857 caddr_t data; 858 { 859 struct eg_softc *sc = ifp->if_softc; 860 struct ifaddr *ifa = (struct ifaddr *)data; 861 int s, error = 0; 862 863 s = splnet(); 864 865 switch (cmd) { 866 867 case SIOCSIFADDR: 868 ifp->if_flags |= IFF_UP; 869 870 switch (ifa->ifa_addr->sa_family) { 871 #ifdef INET 872 case AF_INET: 873 eginit(sc); 874 arp_ifinit(ifp, ifa); 875 break; 876 #endif 877 #ifdef NS 878 case AF_NS: 879 { 880 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 881 882 if (ns_nullhost(*ina)) 883 ina->x_host = 884 *(union ns_host *)LLADDR(ifp->if_sadl); 885 else 886 memcpy(LLADDR(ifp->if_sadl), ina->x_host.c_host, 887 ETHER_ADDR_LEN); 888 /* Set new address. */ 889 eginit(sc); 890 break; 891 } 892 #endif 893 default: 894 eginit(sc); 895 break; 896 } 897 break; 898 899 case SIOCSIFFLAGS: 900 if ((ifp->if_flags & IFF_UP) == 0 && 901 (ifp->if_flags & IFF_RUNNING) != 0) { 902 /* 903 * If interface is marked down and it is running, then 904 * stop it. 905 */ 906 egstop(sc); 907 ifp->if_flags &= ~IFF_RUNNING; 908 } else if ((ifp->if_flags & IFF_UP) != 0 && 909 (ifp->if_flags & IFF_RUNNING) == 0) { 910 /* 911 * If interface is marked up and it is stopped, then 912 * start it. 913 */ 914 eginit(sc); 915 } else { 916 sc->eg_pcb[0] = EG_CMD_GETSTATS; 917 sc->eg_pcb[1] = 0; 918 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) 919 DPRINTF(("write error\n")); 920 /* 921 * XXX deal with flags changes: 922 * IFF_MULTICAST, IFF_PROMISC, 923 * IFF_LINK0, IFF_LINK1, 924 */ 925 } 926 break; 927 928 default: 929 error = EINVAL; 930 break; 931 } 932 933 splx(s); 934 return error; 935 } 936 937 void 938 egreset(sc) 939 struct eg_softc *sc; 940 { 941 int s; 942 943 DPRINTF(("%s: egreset()\n", sc->sc_dev.dv_xname)); 944 s = splnet(); 945 egstop(sc); 946 eginit(sc); 947 splx(s); 948 } 949 950 void 951 egwatchdog(ifp) 952 struct ifnet *ifp; 953 { 954 struct eg_softc *sc = ifp->if_softc; 955 956 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 957 sc->sc_ethercom.ec_if.if_oerrors++; 958 959 egreset(sc); 960 } 961 962 void 963 egstop(sc) 964 struct eg_softc *sc; 965 { 966 967 bus_space_write_1(sc->sc_iot, sc->sc_ioh, EG_CONTROL, 0); 968 } 969
Indexes created Mon Oct 20 16:09:52 GMT 2025