if_eg.c revision 1.80
1 /* $NetBSD: if_eg.c,v 1.80 2009/05/12 09:10:15 cegger 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 1.80 2009/05/12 09:10:15 cegger Exp $"); 44 45 #include "opt_inet.h" 46 #include "bpfilter.h" 47 #include "rnd.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/mbuf.h> 52 #include <sys/socket.h> 53 #include <sys/ioctl.h> 54 #include <sys/errno.h> 55 #include <sys/syslog.h> 56 #include <sys/select.h> 57 #include <sys/device.h> 58 #if NRND > 0 59 #include <sys/rnd.h> 60 #endif 61 62 #include <net/if.h> 63 #include <net/if_dl.h> 64 #include <net/if_types.h> 65 66 #include <net/if_ether.h> 67 68 #ifdef INET 69 #include <netinet/in.h> 70 #include <netinet/in_systm.h> 71 #include <netinet/in_var.h> 72 #include <netinet/ip.h> 73 #include <netinet/if_inarp.h> 74 #endif 75 76 77 #if NBPFILTER > 0 78 #include <net/bpf.h> 79 #include <net/bpfdesc.h> 80 #endif 81 82 #include <sys/cpu.h> 83 #include <sys/intr.h> 84 #include <sys/bus.h> 85 86 #include <dev/isa/isavar.h> 87 #include <dev/isa/if_egreg.h> 88 #include <dev/isa/elink.h> 89 90 /* for debugging convenience */ 91 #ifdef EGDEBUG 92 #define DPRINTF(x) printf x 93 #else 94 #define DPRINTF(x) 95 #endif 96 97 #define EG_INLEN 10 98 #define EG_BUFLEN 0x0670 99 100 #define EG_PCBLEN 64 101 102 /* 103 * Ethernet software status per interface. 104 */ 105 struct eg_softc { 106 struct device sc_dev; 107 void *sc_ih; 108 struct ethercom sc_ethercom; /* Ethernet common part */ 109 bus_space_tag_t sc_iot; /* bus space identifier */ 110 bus_space_handle_t sc_ioh; /* i/o handle */ 111 u_int8_t eg_rom_major; /* Cards ROM version (major number) */ 112 u_int8_t eg_rom_minor; /* Cards ROM version (minor number) */ 113 short eg_ram; /* Amount of RAM on the card */ 114 u_int8_t eg_pcb[EG_PCBLEN]; /* Primary Command Block buffer */ 115 u_int8_t eg_incount; /* Number of buffers currently used */ 116 void * eg_inbuf; /* Incoming packet buffer */ 117 void * eg_outbuf; /* Outgoing packet buffer */ 118 119 #if NRND > 0 120 rndsource_element_t rnd_source; 121 #endif 122 }; 123 124 int egprobe(device_t, cfdata_t, void *); 125 void egattach(device_t, device_t, void *); 126 127 CFATTACH_DECL(eg, sizeof(struct eg_softc), 128 egprobe, egattach, NULL, NULL); 129 130 int egintr(void *); 131 void eginit(struct eg_softc *); 132 int egioctl(struct ifnet *, u_long, void *); 133 void egrecv(struct eg_softc *); 134 void egstart(struct ifnet *); 135 void egwatchdog(struct ifnet *); 136 void egreset(struct eg_softc *); 137 void egread(struct eg_softc *, void *, int); 138 struct mbuf *egget(struct eg_softc *, void *, int); 139 void egstop(struct eg_softc *); 140 141 static inline void egprintpcb(u_int8_t *); 142 static inline void egprintstat(u_char); 143 static int egoutPCB(bus_space_tag_t, bus_space_handle_t, u_int8_t); 144 static int egreadPCBstat(bus_space_tag_t, bus_space_handle_t, u_int8_t); 145 static int egreadPCBready(bus_space_tag_t, bus_space_handle_t); 146 static int egwritePCB(bus_space_tag_t, bus_space_handle_t, u_int8_t *); 147 static int egreadPCB(bus_space_tag_t, bus_space_handle_t, u_int8_t *); 148 149 /* 150 * Support stuff 151 */ 152 153 static inline void 154 egprintpcb(u_int8_t *pcb) 155 { 156 int i; 157 158 for (i = 0; i < pcb[1] + 2; i++) 159 DPRINTF(("pcb[%2d] = %x\n", i, pcb[i])); 160 } 161 162 163 static inline void 164 egprintstat(u_char b) 165 { 166 DPRINTF(("%s %s %s %s %s %s %s\n", 167 (b & EG_STAT_HCRE)?"HCRE":"", 168 (b & EG_STAT_ACRF)?"ACRF":"", 169 (b & EG_STAT_DIR )?"DIR ":"", 170 (b & EG_STAT_DONE)?"DONE":"", 171 (b & EG_STAT_ASF3)?"ASF3":"", 172 (b & EG_STAT_ASF2)?"ASF2":"", 173 (b & EG_STAT_ASF1)?"ASF1":"")); 174 } 175 176 static int 177 egoutPCB(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t b) 178 { 179 int i; 180 181 for (i=0; i < 4000; i++) { 182 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) { 183 bus_space_write_1(iot, ioh, EG_COMMAND, b); 184 return 0; 185 } 186 delay(10); 187 } 188 DPRINTF(("egoutPCB failed\n")); 189 return 1; 190 } 191 192 static int 193 egreadPCBstat(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t statb) 194 { 195 int i; 196 197 for (i=0; i < 5000; i++) { 198 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 199 EG_PCB_STAT) != EG_PCB_NULL) 200 break; 201 delay(10); 202 } 203 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) == statb) 204 return 0; 205 return 1; 206 } 207 208 static int 209 egreadPCBready(bus_space_tag_t iot, bus_space_handle_t ioh) 210 { 211 int i; 212 213 for (i=0; i < 10000; i++) { 214 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) 215 return 0; 216 delay(5); 217 } 218 DPRINTF(("PCB read not ready\n")); 219 return 1; 220 } 221 222 static int 223 egwritePCB(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t *pcb) 224 { 225 int i; 226 u_int8_t len; 227 228 bus_space_write_1(iot, ioh, EG_CONTROL, 229 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 230 231 len = pcb[1] + 2; 232 for (i = 0; i < len; i++) 233 egoutPCB(iot, ioh, pcb[i]); 234 235 for (i=0; i < 4000; i++) { 236 if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) 237 break; 238 delay(10); 239 } 240 241 bus_space_write_1(iot, ioh, EG_CONTROL, 242 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_DONE); 243 244 egoutPCB(iot, ioh, len); 245 246 if (egreadPCBstat(iot, ioh, EG_PCB_ACCEPT)) 247 return 1; 248 return 0; 249 } 250 251 static int 252 egreadPCB(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t *pcb) 253 { 254 int i; 255 256 bus_space_write_1(iot, ioh, EG_CONTROL, 257 (bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL); 258 259 memset(pcb, 0, EG_PCBLEN); 260 261 if (egreadPCBready(iot, ioh)) 262 return 1; 263 264 pcb[0] = bus_space_read_1(iot, ioh, EG_COMMAND); 265 266 if (egreadPCBready(iot, ioh)) 267 return 1; 268 269 pcb[1] = bus_space_read_1(iot, ioh, EG_COMMAND); 270 271 if (pcb[1] > 62) { 272 DPRINTF(("len %d too large\n", pcb[1])); 273 return 1; 274 } 275 276 for (i = 0; i < pcb[1]; i++) { 277 if (egreadPCBready(iot, ioh)) 278 return 1; 279 pcb[2+i] = bus_space_read_1(iot, ioh, EG_COMMAND); 280 } 281 if (egreadPCBready(iot, ioh)) 282 return 1; 283 if (egreadPCBstat(iot, ioh, EG_PCB_DONE)) 284 return 1; 285 if (bus_space_read_1(iot, ioh, EG_COMMAND) != pcb[1] + 2) { 286 return 1; 287 } 288 289 bus_space_write_1(iot, ioh, EG_CONTROL, 290 (bus_space_read_1(iot, ioh, EG_CONTROL) & 291 ~EG_PCB_STAT) | EG_PCB_ACCEPT); 292 293 return 0; 294 } 295 296 /* 297 * Real stuff 298 */ 299 300 int 301 egprobe(device_t parent, cfdata_t match, void *aux) 302 { 303 struct isa_attach_args *ia = aux; 304 bus_space_tag_t iot = ia->ia_iot; 305 bus_space_handle_t ioh; 306 int i, rval; 307 static u_int8_t pcb[EG_PCBLEN]; 308 309 rval = 0; 310 311 /* 312 * XXX This probe is slow. If there are no ISA expansion slots, 313 * then skip it. 314 */ 315 if (isa_get_slotcount() == 0) 316 return (0); 317 318 if (ia->ia_nio < 1) 319 return (0); 320 if (ia->ia_nirq < 1) 321 return (0); 322 323 if (ISA_DIRECT_CONFIG(ia)) 324 return (0); 325 326 /* Disallow wildcarded i/o address. */ 327 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 328 return (0); 329 330 /* Disallow wildcarded IRQ. */ 331 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 332 return (0); 333 334 if ((ia->ia_io[0].ir_addr & ~0x07f0) != 0) { 335 DPRINTF(("Weird iobase %x\n", ia->ia_io[0].ir_addr)); 336 return 0; 337 } 338 339 /* Map i/o space. */ 340 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 341 DPRINTF(("egprobe: can't map i/o space in probe\n")); 342 return 0; 343 } 344 345 /* hard reset card */ 346 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_RESET); 347 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 348 for (i = 0; i < 500; i++) { 349 delay(1000); 350 if ((bus_space_read_1(iot, ioh, EG_STATUS) & 351 EG_PCB_STAT) == EG_PCB_NULL) 352 break; 353 } 354 if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) != EG_PCB_NULL) { 355 DPRINTF(("egprobe: Reset failed\n")); 356 goto out; 357 } 358 pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 359 pcb[1] = 0; 360 if (egwritePCB(iot, ioh, pcb) != 0) 361 goto out; 362 363 if ((egreadPCB(iot, ioh, pcb) != 0) || 364 pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 365 pcb[1] != 0x0a) { 366 egprintpcb(pcb); 367 goto out; 368 } 369 370 ia->ia_nio = 1; 371 ia->ia_io[0].ir_size = 0x08; 372 373 ia->ia_nirq = 1; 374 375 ia->ia_niomem = 0; 376 ia->ia_ndrq = 0; 377 378 rval = 1; 379 380 out: 381 bus_space_unmap(iot, ioh, 0x08); 382 return rval; 383 } 384 385 void 386 egattach(device_t parent, device_t self, void *aux) 387 { 388 struct eg_softc *sc = (void *)self; 389 struct isa_attach_args *ia = aux; 390 bus_space_tag_t iot = ia->ia_iot; 391 bus_space_handle_t ioh; 392 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 393 u_int8_t myaddr[ETHER_ADDR_LEN]; 394 395 printf("\n"); 396 397 /* Map i/o space. */ 398 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 0x08, 0, &ioh)) { 399 aprint_error_dev(self, "can't map i/o space\n"); 400 return; 401 } 402 403 sc->sc_iot = iot; 404 sc->sc_ioh = ioh; 405 406 sc->eg_pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */ 407 sc->eg_pcb[1] = 0; 408 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 409 aprint_error_dev(self, "error requesting adapter info\n"); 410 return; 411 } 412 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 413 egprintpcb(sc->eg_pcb); 414 aprint_error_dev(self, "error reading adapter info\n"); 415 return; 416 } 417 418 if (sc->eg_pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */ 419 sc->eg_pcb[1] != 0x0a) { 420 egprintpcb(sc->eg_pcb); 421 aprint_error_dev(self, "bogus adapter info\n"); 422 return; 423 } 424 425 sc->eg_rom_major = sc->eg_pcb[3]; 426 sc->eg_rom_minor = sc->eg_pcb[2]; 427 sc->eg_ram = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 428 429 egstop(sc); 430 431 sc->eg_pcb[0] = EG_CMD_GETEADDR; /* Get Station address */ 432 sc->eg_pcb[1] = 0; 433 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 434 aprint_error_dev(self, "can't send Get Station Address\n"); 435 return; 436 } 437 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 438 aprint_error_dev(self, "can't read station address\n"); 439 egprintpcb(sc->eg_pcb); 440 return; 441 } 442 443 /* check Get station address response */ 444 if (sc->eg_pcb[0] != EG_RSP_GETEADDR || sc->eg_pcb[1] != 0x06) { 445 aprint_error_dev(self, "card responded with garbage (1)\n"); 446 egprintpcb(sc->eg_pcb); 447 return; 448 } 449 memcpy(myaddr, &sc->eg_pcb[2], ETHER_ADDR_LEN); 450 451 printf("%s: ROM v%d.%02d %dk address %s\n", device_xname(self), 452 sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram, 453 ether_sprintf(myaddr)); 454 455 sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */ 456 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 457 printf("%s: can't send Set Station Address\n", device_xname(self)); 458 return; 459 } 460 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 461 aprint_error_dev(self, "can't read Set Station Address status\n"); 462 egprintpcb(sc->eg_pcb); 463 return; 464 } 465 if (sc->eg_pcb[0] != EG_RSP_SETEADDR || sc->eg_pcb[1] != 0x02 || 466 sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) { 467 aprint_error_dev(self, "card responded with garbage (2)\n"); 468 egprintpcb(sc->eg_pcb); 469 return; 470 } 471 472 /* Initialize ifnet structure. */ 473 strlcpy(ifp->if_xname, device_xname(&sc->sc_dev), IFNAMSIZ); 474 ifp->if_softc = sc; 475 ifp->if_start = egstart; 476 ifp->if_ioctl = egioctl; 477 ifp->if_watchdog = egwatchdog; 478 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS; 479 IFQ_SET_READY(&ifp->if_snd); 480 481 /* Now we can attach the interface. */ 482 if_attach(ifp); 483 ether_ifattach(ifp, myaddr); 484 485 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 486 IST_EDGE, IPL_NET, egintr, sc); 487 488 #if NRND > 0 489 rnd_attach_source(&sc->rnd_source, device_xname(&sc->sc_dev), 490 RND_TYPE_NET, 0); 491 #endif 492 } 493 494 void 495 eginit(struct eg_softc *sc) 496 { 497 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 498 bus_space_tag_t iot = sc->sc_iot; 499 bus_space_handle_t ioh = sc->sc_ioh; 500 501 /* soft reset the board */ 502 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_FLSH); 503 delay(100); 504 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_ATTN); 505 delay(100); 506 bus_space_write_1(iot, ioh, EG_CONTROL, 0); 507 delay(200); 508 509 sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */ 510 sc->eg_pcb[1] = 2; 511 sc->eg_pcb[2] = 3; /* receive broadcast & multicast */ 512 sc->eg_pcb[3] = 0; 513 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) 514 aprint_error_dev(&sc->sc_dev, "can't send Configure 82586\n"); 515 516 if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) { 517 aprint_error_dev(&sc->sc_dev, "can't read Configure 82586 status\n"); 518 egprintpcb(sc->eg_pcb); 519 } else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) 520 aprint_error_dev(&sc->sc_dev, "configure card command failed\n"); 521 522 if (sc->eg_inbuf == NULL) { 523 sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 524 if (sc->eg_inbuf == NULL) { 525 aprint_error_dev(&sc->sc_dev, "can't allocate inbuf\n"); 526 panic("eginit"); 527 } 528 } 529 sc->eg_incount = 0; 530 531 if (sc->eg_outbuf == NULL) { 532 sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT); 533 if (sc->eg_outbuf == NULL) { 534 aprint_error_dev(&sc->sc_dev, "can't allocate outbuf\n"); 535 panic("eginit"); 536 } 537 } 538 539 bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_CMDE); 540 541 sc->eg_incount = 0; 542 egrecv(sc); 543 544 /* Interface is now `running', with no output active. */ 545 ifp->if_flags |= IFF_RUNNING; 546 ifp->if_flags &= ~IFF_OACTIVE; 547 548 /* Attempt to start output, if any. */ 549 egstart(ifp); 550 } 551 552 void 553 egrecv(struct eg_softc *sc) 554 { 555 556 while (sc->eg_incount < EG_INLEN) { 557 sc->eg_pcb[0] = EG_CMD_RECVPACKET; 558 sc->eg_pcb[1] = 0x08; 559 sc->eg_pcb[2] = 0; /* address not used.. we send zero */ 560 sc->eg_pcb[3] = 0; 561 sc->eg_pcb[4] = 0; 562 sc->eg_pcb[5] = 0; 563 sc->eg_pcb[6] = EG_BUFLEN & 0xff; /* our buffer size */ 564 sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff; 565 sc->eg_pcb[8] = 0; /* timeout, 0 == none */ 566 sc->eg_pcb[9] = 0; 567 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) 568 break; 569 sc->eg_incount++; 570 } 571 } 572 573 void 574 egstart(struct ifnet *ifp) 575 { 576 struct eg_softc *sc = ifp->if_softc; 577 bus_space_tag_t iot = sc->sc_iot; 578 bus_space_handle_t ioh = sc->sc_ioh; 579 struct mbuf *m0, *m; 580 char *buffer; 581 int len; 582 u_int16_t *ptr; 583 584 /* Don't transmit if interface is busy or not running */ 585 if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING) 586 return; 587 588 loop: 589 /* Dequeue the next datagram. */ 590 IFQ_DEQUEUE(&ifp->if_snd, m0); 591 if (m0 == 0) 592 return; 593 594 ifp->if_flags |= IFF_OACTIVE; 595 596 /* We need to use m->m_pkthdr.len, so require the header */ 597 if ((m0->m_flags & M_PKTHDR) == 0) { 598 aprint_error_dev(&sc->sc_dev, "no header mbuf\n"); 599 panic("egstart"); 600 } 601 len = max(m0->m_pkthdr.len, ETHER_MIN_LEN - ETHER_CRC_LEN); 602 603 #if NBPFILTER > 0 604 if (ifp->if_bpf) 605 bpf_mtap(ifp->if_bpf, m0); 606 #endif 607 608 sc->eg_pcb[0] = EG_CMD_SENDPACKET; 609 sc->eg_pcb[1] = 0x06; 610 sc->eg_pcb[2] = 0; /* address not used, we send zero */ 611 sc->eg_pcb[3] = 0; 612 sc->eg_pcb[4] = 0; 613 sc->eg_pcb[5] = 0; 614 sc->eg_pcb[6] = len; /* length of packet */ 615 sc->eg_pcb[7] = len >> 8; 616 if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) { 617 aprint_error_dev(&sc->sc_dev, "can't send Send Packet command\n"); 618 ifp->if_oerrors++; 619 ifp->if_flags &= ~IFF_OACTIVE; 620 m_freem(m0); 621 goto loop; 622 } 623 624 buffer = sc->eg_outbuf; 625 for (m = m0; m != 0; m = m->m_next) { 626 memcpy(buffer, mtod(m, void *), m->m_len); 627 buffer += m->m_len; 628 } 629 if (len > m0->m_pkthdr.len) 630 memset(buffer, 0, len - m0->m_pkthdr.len); 631 632 /* set direction bit: host -> adapter */ 633 bus_space_write_1(iot, ioh, EG_CONTROL, 634 bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_CTL_DIR); 635 636 for (ptr = (u_int16_t *) sc->eg_outbuf; len > 0; len -= 2) { 637 bus_space_write_2(iot, ioh, EG_DATA, *ptr++); 638 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HRDY)) 639 ; /* XXX need timeout here */ 640 } 641 642 m_freem(m0); 643 } 644 645 int 646 egintr(void *arg) 647 { 648 struct eg_softc *sc = arg; 649 bus_space_tag_t iot = sc->sc_iot; 650 bus_space_handle_t ioh = sc->sc_ioh; 651 int i, len, serviced; 652 u_int16_t *ptr; 653 654 serviced = 0; 655 656 while (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) { 657 egreadPCB(iot, ioh, sc->eg_pcb); 658 switch (sc->eg_pcb[0]) { 659 case EG_RSP_RECVPACKET: 660 len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8); 661 662 /* Set direction bit : Adapter -> host */ 663 bus_space_write_1(iot, ioh, EG_CONTROL, 664 bus_space_read_1(iot, ioh, EG_CONTROL) | EG_CTL_DIR); 665 666 for (ptr = (u_int16_t *) sc->eg_inbuf; 667 len > 0; len -= 2) { 668 while (!(bus_space_read_1(iot, ioh, EG_STATUS) & 669 EG_STAT_HRDY)) 670 ; 671 *ptr++ = bus_space_read_2(iot, ioh, EG_DATA); 672 } 673 674 len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8); 675 egread(sc, sc->eg_inbuf, len); 676 677 sc->eg_incount--; 678 egrecv(sc); 679 serviced = 1; 680 break; 681 682 case EG_RSP_SENDPACKET: 683 if (sc->eg_pcb[6] || sc->eg_pcb[7]) { 684 DPRINTF(("%s: packet dropped\n", 685 device_xname(&sc->sc_dev))); 686 sc->sc_ethercom.ec_if.if_oerrors++; 687 } else 688 sc->sc_ethercom.ec_if.if_opackets++; 689 sc->sc_ethercom.ec_if.if_collisions += 690 sc->eg_pcb[8] & 0xf; 691 sc->sc_ethercom.ec_if.if_flags &= ~IFF_OACTIVE; 692 egstart(&sc->sc_ethercom.ec_if); 693 serviced = 1; 694 break; 695 696 /* XXX byte-order and type-size bugs here... */ 697 case EG_RSP_GETSTATS: 698 DPRINTF(("%s: Card Statistics\n", 699 device_xname(&sc->sc_dev))); 700 memcpy(&i, &sc->eg_pcb[2], sizeof(i)); 701 DPRINTF(("Receive Packets %d\n", i)); 702 memcpy(&i, &sc->eg_pcb[6], sizeof(i)); 703 DPRINTF(("Transmit Packets %d\n", i)); 704 DPRINTF(("CRC errors %d\n", 705 *(short *) &sc->eg_pcb[10])); 706 DPRINTF(("alignment errors %d\n", 707 *(short *) &sc->eg_pcb[12])); 708 DPRINTF(("no resources errors %d\n", 709 *(short *) &sc->eg_pcb[14])); 710 DPRINTF(("overrun errors %d\n", 711 *(short *) &sc->eg_pcb[16])); 712 serviced = 1; 713 break; 714 715 default: 716 printf("%s: egintr: Unknown response %x??\n", 717 device_xname(&sc->sc_dev), sc->eg_pcb[0]); 718 egprintpcb(sc->eg_pcb); 719 break; 720 } 721 722 #if NRND > 0 723 rnd_add_uint32(&sc->rnd_source, sc->eg_pcb[0]); 724 #endif 725 } 726 727 return serviced; 728 } 729 730 /* 731 * Pass a packet up to the higher levels. 732 */ 733 void 734 egread(struct eg_softc *sc, void *buf, int len) 735 { 736 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 737 struct mbuf *m; 738 739 if (len <= sizeof(struct ether_header) || 740 len > ETHER_MAX_LEN) { 741 aprint_error_dev(&sc->sc_dev, "invalid packet size %d; dropping\n", len); 742 ifp->if_ierrors++; 743 return; 744 } 745 746 /* Pull packet off interface. */ 747 m = egget(sc, buf, len); 748 if (m == 0) { 749 ifp->if_ierrors++; 750 return; 751 } 752 753 ifp->if_ipackets++; 754 755 #if NBPFILTER > 0 756 /* 757 * Check if there's a BPF listener on this interface. 758 * If so, hand off the raw packet to BPF. 759 */ 760 if (ifp->if_bpf) 761 bpf_mtap(ifp->if_bpf, m); 762 #endif 763 764 (*ifp->if_input)(ifp, m); 765 } 766 767 /* 768 * convert buf into mbufs 769 */ 770 struct mbuf * 771 egget(struct eg_softc *sc, void *buf, int totlen) 772 { 773 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 774 struct mbuf *m, *m0, *newm; 775 int len; 776 777 MGETHDR(m0, M_DONTWAIT, MT_DATA); 778 if (m0 == 0) 779 return (0); 780 m0->m_pkthdr.rcvif = ifp; 781 m0->m_pkthdr.len = totlen; 782 len = MHLEN; 783 m = m0; 784 785 while (totlen > 0) { 786 if (totlen >= MINCLSIZE) { 787 MCLGET(m, M_DONTWAIT); 788 if ((m->m_flags & M_EXT) == 0) 789 goto bad; 790 len = MCLBYTES; 791 } 792 793 m->m_len = len = min(totlen, len); 794 memcpy(mtod(m, void *), buf, len); 795 buf = (char *)buf + len; 796 797 totlen -= len; 798 if (totlen > 0) { 799 MGET(newm, M_DONTWAIT, MT_DATA); 800 if (newm == 0) 801 goto bad; 802 len = MLEN; 803 m = m->m_next = newm; 804 } 805 } 806 807 return (m0); 808 809 bad: 810 m_freem(m0); 811 return (0); 812 } 813 814 int 815 egioctl(struct ifnet *ifp, unsigned long cmd, void *data) 816 { 817 struct eg_softc *sc = ifp->if_softc; 818 struct ifaddr *ifa = (struct ifaddr *)data; 819 int s, error = 0; 820 821 s = splnet(); 822 823 switch (cmd) { 824 825 case SIOCINITIFADDR: 826 ifp->if_flags |= IFF_UP; 827 828 eginit(sc); 829 switch (ifa->ifa_addr->sa_family) { 830 #ifdef INET 831 case AF_INET: 832 arp_ifinit(ifp, ifa); 833 break; 834 #endif 835 default: 836 break; 837 } 838 break; 839 840 case SIOCSIFFLAGS: 841 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 842 break; 843 /* XXX re-use ether_ioctl() */ 844 switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { 845 case IFF_RUNNING: 846 /* 847 * If interface is marked down and it is running, then 848 * stop it. 849 */ 850 egstop(sc); 851 ifp->if_flags &= ~IFF_RUNNING; 852 break; 853 case IFF_UP: 854 /* 855 * If interface is marked up and it is stopped, then 856 * start it. 857 */ 858 eginit(sc); 859 break; 860 default: 861 sc->eg_pcb[0] = EG_CMD_GETSTATS; 862 sc->eg_pcb[1] = 0; 863 if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0) { 864 DPRINTF(("write error\n")); 865 } 866 /* 867 * XXX deal with flags changes: 868 * IFF_MULTICAST, IFF_PROMISC, 869 * IFF_LINK0, IFF_LINK1, 870 */ 871 break; 872 } 873 break; 874 875 default: 876 error = ether_ioctl(ifp, cmd, data); 877 break; 878 } 879 880 splx(s); 881 return error; 882 } 883 884 void 885 egreset(struct eg_softc *sc) 886 { 887 int s; 888 889 DPRINTF(("%s: egreset()\n", device_xname(&sc->sc_dev))); 890 s = splnet(); 891 egstop(sc); 892 eginit(sc); 893 splx(s); 894 } 895 896 void 897 egwatchdog(struct ifnet *ifp) 898 { 899 struct eg_softc *sc = ifp->if_softc; 900 901 log(LOG_ERR, "%s: device timeout\n", device_xname(&sc->sc_dev)); 902 sc->sc_ethercom.ec_if.if_oerrors++; 903 904 egreset(sc); 905 } 906 907 void 908 egstop(struct eg_softc *sc) 909 { 910 911 bus_space_write_1(sc->sc_iot, sc->sc_ioh, EG_CONTROL, 0); 912 } 913
Indexes created Thu Oct 02 14:10:14 GMT 2025