mb86960.c revision 1.64
1 /* $NetBSD: mb86960.c,v 1.64 2006/03/29 04:16:49 thorpej Exp $ */ 2 3 /* 4 * All Rights Reserved, Copyright (C) Fujitsu Limited 1995 5 * 6 * This software may be used, modified, copied, distributed, and sold, in 7 * both source and binary form provided that the above copyright, these 8 * terms and the following disclaimer are retained. The name of the author 9 * and/or the contributor may not be used to endorse or promote products 10 * derived from this software without specific prior written permission. 11 * 12 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND 13 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE 16 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION. 19 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22 * SUCH DAMAGE. 23 */ 24 25 /* 26 * Portions copyright (C) 1993, David Greenman. This software may be used, 27 * modified, copied, distributed, and sold, in both source and binary form 28 * provided that the above copyright and these terms are retained. Under no 29 * circumstances is the author responsible for the proper functioning of this 30 * software, nor does the author assume any responsibility for damages 31 * incurred with its use. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: mb86960.c,v 1.64 2006/03/29 04:16:49 thorpej Exp $"); 36 37 /* 38 * Device driver for Fujitsu MB86960A/MB86965A based Ethernet cards. 39 * Contributed by M.S. <seki (at) sysrap.cs.fujitsu.co.jp> 40 * 41 * This version is intended to be a generic template for various 42 * MB86960A/MB86965A based Ethernet cards. It currently supports 43 * Fujitsu FMV-180 series (i.e., FMV-181 and FMV-182) and Allied- 44 * Telesis AT1700 series and RE2000 series. There are some 45 * unnecessary hooks embedded, which are primarily intended to support 46 * other types of Ethernet cards, but the author is not sure whether 47 * they are useful. 48 */ 49 50 #include "opt_inet.h" 51 #include "opt_ns.h" 52 #include "bpfilter.h" 53 #include "rnd.h" 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/errno.h> 58 #include <sys/ioctl.h> 59 #include <sys/mbuf.h> 60 #include <sys/socket.h> 61 #include <sys/syslog.h> 62 #include <sys/device.h> 63 #if NRND > 0 64 #include <sys/rnd.h> 65 #endif 66 67 #include <net/if.h> 68 #include <net/if_dl.h> 69 #include <net/if_types.h> 70 #include <net/if_media.h> 71 #include <net/if_ether.h> 72 73 #ifdef INET 74 #include <netinet/in.h> 75 #include <netinet/in_systm.h> 76 #include <netinet/in_var.h> 77 #include <netinet/ip.h> 78 #include <netinet/if_inarp.h> 79 #endif 80 81 #ifdef NS 82 #include <netns/ns.h> 83 #include <netns/ns_if.h> 84 #endif 85 86 #if NBPFILTER > 0 87 #include <net/bpf.h> 88 #include <net/bpfdesc.h> 89 #endif 90 91 #include <machine/bus.h> 92 93 #include <dev/ic/mb86960reg.h> 94 #include <dev/ic/mb86960var.h> 95 96 #ifndef __BUS_SPACE_HAS_STREAM_METHODS 97 #define bus_space_write_stream_2 bus_space_write_2 98 #define bus_space_write_multi_stream_2 bus_space_write_multi_2 99 #define bus_space_read_multi_stream_2 bus_space_read_multi_2 100 #endif /* __BUS_SPACE_HAS_STREAM_METHODS */ 101 102 /* Standard driver entry points. These can be static. */ 103 void mb86960_init(struct mb86960_softc *); 104 int mb86960_ioctl(struct ifnet *, u_long, caddr_t); 105 void mb86960_start(struct ifnet *); 106 void mb86960_reset(struct mb86960_softc *); 107 void mb86960_watchdog(struct ifnet *); 108 109 /* Local functions. Order of declaration is confused. FIXME. */ 110 int mb86960_get_packet(struct mb86960_softc *, u_int); 111 void mb86960_stop(struct mb86960_softc *); 112 void mb86960_tint(struct mb86960_softc *, uint8_t); 113 void mb86960_rint(struct mb86960_softc *, uint8_t); 114 static inline 115 void mb86960_xmit(struct mb86960_softc *); 116 void mb86960_write_mbufs(struct mb86960_softc *, struct mbuf *); 117 static inline 118 void mb86960_droppacket(struct mb86960_softc *); 119 void mb86960_getmcaf(struct ethercom *, uint8_t *); 120 void mb86960_setmode(struct mb86960_softc *); 121 void mb86960_loadmar(struct mb86960_softc *); 122 123 int mb86960_mediachange(struct ifnet *); 124 void mb86960_mediastatus(struct ifnet *, struct ifmediareq *); 125 126 #if FE_DEBUG >= 1 127 void mb86960_dump(int, struct mb86960_softc *); 128 #endif 129 130 void 131 mb86960_attach(struct mb86960_softc *sc, uint8_t *myea) 132 { 133 bus_space_tag_t bst = sc->sc_bst; 134 bus_space_handle_t bsh = sc->sc_bsh; 135 136 /* Register values which depend on board design. */ 137 sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; 138 sc->proto_dlcr5 = 0; 139 sc->proto_dlcr7 = FE_D7_BYTSWP_LH; 140 if ((sc->sc_flags & FE_FLAGS_MB86960) != 0) 141 sc->proto_dlcr7 |= FE_D7_ED_TEST; /* XXX */ 142 sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; 143 144 /* 145 * Program the 86960 as following defaults: 146 * SRAM: 32KB, 100ns, byte-wide access. 147 * Transmission buffer: 4KB x 2. 148 * System bus interface: 16 bits. 149 * These values except TXBSIZE should be modified as per 150 * sc_flags which is set in MD attachments, because they 151 * are hard-wired on the board. Modifying TXBSIZE will affect 152 * the driver performance. 153 */ 154 sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB | 155 FE_D6_BBW_BYTE | FE_D6_SRAM_100ns; 156 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) 157 sc->proto_dlcr6 |= FE_D6_SBW_BYTE; 158 if (sc->sc_flags & FE_FLAGS_SRAM_150ns) 159 sc->proto_dlcr6 &= ~FE_D6_SRAM_100ns; 160 161 /* 162 * Minimum initialization of the hardware. 163 * We write into registers; hope I/O ports have no 164 * overlap with other boards. 165 */ 166 167 /* Initialize 86960. */ 168 bus_space_write_1(bst, bsh, FE_DLCR6, 169 sc->proto_dlcr6 | FE_D6_DLC_DISABLE); 170 delay(200); 171 172 #ifdef DIAGNOSTIC 173 if (myea == NULL) { 174 printf("%s: ethernet address shouldn't be NULL\n", 175 sc->sc_dev.dv_xname); 176 panic("NULL ethernet address"); 177 } 178 #endif 179 memcpy(sc->sc_enaddr, myea, sizeof(sc->sc_enaddr)); 180 181 /* Disable all interrupts. */ 182 bus_space_write_1(bst, bsh, FE_DLCR2, 0); 183 bus_space_write_1(bst, bsh, FE_DLCR3, 0); 184 } 185 186 /* 187 * Install interface into kernel networking data structures 188 */ 189 void 190 mb86960_config(struct mb86960_softc *sc, int *media, int nmedia, int defmedia) 191 { 192 struct cfdata *cf = device_cfdata(&sc->sc_dev); 193 struct ifnet *ifp = &sc->sc_ec.ec_if; 194 int i; 195 196 /* Stop the 86960. */ 197 mb86960_stop(sc); 198 199 /* Initialize ifnet structure. */ 200 strcpy(ifp->if_xname, sc->sc_dev.dv_xname); 201 ifp->if_softc = sc; 202 ifp->if_start = mb86960_start; 203 ifp->if_ioctl = mb86960_ioctl; 204 ifp->if_watchdog = mb86960_watchdog; 205 ifp->if_flags = 206 IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST; 207 IFQ_SET_READY(&ifp->if_snd); 208 209 #if FE_DEBUG >= 3 210 log(LOG_INFO, "%s: mb86960_config()\n", sc->sc_dev.dv_xname); 211 mb86960_dump(LOG_INFO, sc); 212 #endif 213 214 #if FE_SINGLE_TRANSMISSION 215 /* Override txb config to allocate minimum. */ 216 sc->proto_dlcr6 &= ~FE_D6_TXBSIZ; 217 sc->proto_dlcr6 |= FE_D6_TXBSIZ_2x2KB; 218 #endif 219 220 /* Modify hardware config if it is requested. */ 221 if ((cf->cf_flags & FE_FLAGS_OVERRIDE_DLCR6) != 0) 222 sc->proto_dlcr6 = cf->cf_flags & FE_FLAGS_DLCR6_VALUE; 223 224 /* Find TX buffer size, based on the hardware dependent proto. */ 225 switch (sc->proto_dlcr6 & FE_D6_TXBSIZ) { 226 case FE_D6_TXBSIZ_2x2KB: 227 sc->txb_size = 2048; 228 break; 229 case FE_D6_TXBSIZ_2x4KB: 230 sc->txb_size = 4096; 231 break; 232 case FE_D6_TXBSIZ_2x8KB: 233 sc->txb_size = 8192; 234 break; 235 default: 236 /* Oops, we can't work with single buffer configuration. */ 237 #if FE_DEBUG >= 2 238 log(LOG_WARNING, "%s: strange TXBSIZ config; fixing\n", 239 sc->sc_dev.dv_xname); 240 #endif 241 sc->proto_dlcr6 &= ~FE_D6_TXBSIZ; 242 sc->proto_dlcr6 |= FE_D6_TXBSIZ_2x2KB; 243 sc->txb_size = 2048; 244 break; 245 } 246 247 /* Initialize media goo. */ 248 ifmedia_init(&sc->sc_media, 0, mb86960_mediachange, 249 mb86960_mediastatus); 250 if (media != NULL) { 251 for (i = 0; i < nmedia; i++) 252 ifmedia_add(&sc->sc_media, media[i], 0, NULL); 253 ifmedia_set(&sc->sc_media, defmedia); 254 } else { 255 ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL); 256 ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL); 257 } 258 259 /* Attach the interface. */ 260 if_attach(ifp); 261 ether_ifattach(ifp, sc->sc_enaddr); 262 263 #if NRND > 0 264 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 265 RND_TYPE_NET, 0); 266 #endif 267 /* Print additional info when attached. */ 268 printf("%s: Ethernet address %s\n", sc->sc_dev.dv_xname, 269 ether_sprintf(sc->sc_enaddr)); 270 271 #if FE_DEBUG >= 3 272 { 273 int buf, txb, bbw, sbw, ram; 274 275 buf = txb = bbw = sbw = ram = -1; 276 switch (sc->proto_dlcr6 & FE_D6_BUFSIZ) { 277 case FE_D6_BUFSIZ_8KB: 278 buf = 8; 279 break; 280 case FE_D6_BUFSIZ_16KB: 281 buf = 16; 282 break; 283 case FE_D6_BUFSIZ_32KB: 284 buf = 32; 285 break; 286 case FE_D6_BUFSIZ_64KB: 287 buf = 64; 288 break; 289 } 290 switch (sc->proto_dlcr6 & FE_D6_TXBSIZ) { 291 case FE_D6_TXBSIZ_2x2KB: 292 txb = 2; 293 break; 294 case FE_D6_TXBSIZ_2x4KB: 295 txb = 4; 296 break; 297 case FE_D6_TXBSIZ_2x8KB: 298 txb = 8; 299 break; 300 } 301 switch (sc->proto_dlcr6 & FE_D6_BBW) { 302 case FE_D6_BBW_BYTE: 303 bbw = 8; 304 break; 305 case FE_D6_BBW_WORD: 306 bbw = 16; 307 break; 308 } 309 switch (sc->proto_dlcr6 & FE_D6_SBW) { 310 case FE_D6_SBW_BYTE: 311 sbw = 8; 312 break; 313 case FE_D6_SBW_WORD: 314 sbw = 16; 315 break; 316 } 317 switch (sc->proto_dlcr6 & FE_D6_SRAM) { 318 case FE_D6_SRAM_100ns: 319 ram = 100; 320 break; 321 case FE_D6_SRAM_150ns: 322 ram = 150; 323 break; 324 } 325 printf("%s: SRAM %dKB %dbit %dns, TXB %dKBx2, %dbit I/O\n", 326 sc->sc_dev.dv_xname, buf, bbw, ram, txb, sbw); 327 } 328 #endif 329 330 /* The attach is successful. */ 331 sc->sc_stat |= FE_STAT_ATTACHED; 332 } 333 334 /* 335 * Media change callback. 336 */ 337 int 338 mb86960_mediachange(struct ifnet *ifp) 339 { 340 struct mb86960_softc *sc = ifp->if_softc; 341 342 if (sc->sc_mediachange) 343 return ((*sc->sc_mediachange)(sc)); 344 return (0); 345 } 346 347 /* 348 * Media status callback. 349 */ 350 void 351 mb86960_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 352 { 353 struct mb86960_softc *sc = ifp->if_softc; 354 355 if ((sc->sc_stat & FE_STAT_ENABLED) == 0) { 356 ifmr->ifm_active = IFM_ETHER | IFM_NONE; 357 ifmr->ifm_status = 0; 358 return; 359 } 360 361 if (sc->sc_mediastatus) 362 (*sc->sc_mediastatus)(sc, ifmr); 363 } 364 365 /* 366 * Reset interface. 367 */ 368 void 369 mb86960_reset(struct mb86960_softc *sc) 370 { 371 int s; 372 373 s = splnet(); 374 mb86960_stop(sc); 375 mb86960_init(sc); 376 splx(s); 377 } 378 379 /* 380 * Stop everything on the interface. 381 * 382 * All buffered packets, both transmitting and receiving, 383 * if any, will be lost by stopping the interface. 384 */ 385 void 386 mb86960_stop(struct mb86960_softc *sc) 387 { 388 bus_space_tag_t bst = sc->sc_bst; 389 bus_space_handle_t bsh = sc->sc_bsh; 390 391 #if FE_DEBUG >= 3 392 log(LOG_INFO, "%s: top of mb86960_stop()\n", sc->sc_dev.dv_xname); 393 mb86960_dump(LOG_INFO, sc); 394 #endif 395 396 /* Disable interrupts. */ 397 bus_space_write_1(bst, bsh, FE_DLCR2, 0x00); 398 bus_space_write_1(bst, bsh, FE_DLCR3, 0x00); 399 400 /* Stop interface hardware. */ 401 delay(200); 402 bus_space_write_1(bst, bsh, FE_DLCR6, 403 sc->proto_dlcr6 | FE_D6_DLC_DISABLE); 404 delay(200); 405 406 /* Clear all interrupt status. */ 407 bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF); 408 bus_space_write_1(bst, bsh, FE_DLCR1, 0xFF); 409 410 /* Put the chip in stand-by mode. */ 411 delay(200); 412 bus_space_write_1(bst, bsh, FE_DLCR7, 413 sc->proto_dlcr7 | FE_D7_POWER_DOWN); 414 delay(200); 415 416 /* MAR loading can be delayed. */ 417 sc->filter_change = 0; 418 419 /* Call a hook. */ 420 if (sc->stop_card) 421 (*sc->stop_card)(sc); 422 423 #if FE_DEBUG >= 3 424 log(LOG_INFO, "%s: end of mb86960_stop()\n", sc->sc_dev.dv_xname); 425 mb86960_dump(LOG_INFO, sc); 426 #endif 427 } 428 429 /* 430 * Device timeout/watchdog routine. Entered if the device neglects to 431 * generate an interrupt after a transmit has been started on it. 432 */ 433 void 434 mb86960_watchdog(struct ifnet *ifp) 435 { 436 struct mb86960_softc *sc = ifp->if_softc; 437 438 log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); 439 #if FE_DEBUG >= 3 440 mb86960_dump(LOG_INFO, sc); 441 #endif 442 443 /* Record how many packets are lost by this accident. */ 444 sc->sc_ec.ec_if.if_oerrors += sc->txb_sched + sc->txb_count; 445 446 mb86960_reset(sc); 447 } 448 449 /* 450 * Drop (skip) a packet from receive buffer in 86960 memory. 451 */ 452 static inline void 453 mb86960_droppacket(struct mb86960_softc *sc) 454 { 455 bus_space_tag_t bst = sc->sc_bst; 456 bus_space_handle_t bsh = sc->sc_bsh; 457 458 bus_space_write_1(bst, bsh, FE_BMPR14, FE_B14_FILTER | FE_B14_SKIP); 459 } 460 461 /* 462 * Initialize device. 463 */ 464 void 465 mb86960_init(struct mb86960_softc *sc) 466 { 467 bus_space_tag_t bst = sc->sc_bst; 468 bus_space_handle_t bsh = sc->sc_bsh; 469 struct ifnet *ifp = &sc->sc_ec.ec_if; 470 int i; 471 472 #if FE_DEBUG >= 3 473 log(LOG_INFO, "%s: top of mb86960_init()\n", sc->sc_dev.dv_xname); 474 mb86960_dump(LOG_INFO, sc); 475 #endif 476 477 /* Reset transmitter flags. */ 478 ifp->if_flags &= ~IFF_OACTIVE; 479 ifp->if_timer = 0; 480 481 sc->txb_free = sc->txb_size; 482 sc->txb_count = 0; 483 sc->txb_sched = 0; 484 485 /* Do any card-specific initialization, if applicable. */ 486 if (sc->init_card) 487 (*sc->init_card)(sc); 488 489 #if FE_DEBUG >= 3 490 log(LOG_INFO, "%s: after init hook\n", sc->sc_dev.dv_xname); 491 mb86960_dump(LOG_INFO, sc); 492 #endif 493 494 /* 495 * Make sure to disable the chip, also. 496 * This may also help re-programming the chip after 497 * hot insertion of PCMCIAs. 498 */ 499 bus_space_write_1(bst, bsh, FE_DLCR6, 500 sc->proto_dlcr6 | FE_D6_DLC_DISABLE); 501 delay(200); 502 503 /* Power up the chip and select register bank for DLCRs. */ 504 bus_space_write_1(bst, bsh, FE_DLCR7, 505 sc->proto_dlcr7 | FE_D7_RBS_DLCR | FE_D7_POWER_UP); 506 delay(200); 507 508 /* Feed the station address. */ 509 bus_space_write_region_1(bst, bsh, FE_DLCR8, 510 sc->sc_enaddr, ETHER_ADDR_LEN); 511 512 /* Select the BMPR bank for runtime register access. */ 513 bus_space_write_1(bst, bsh, FE_DLCR7, 514 sc->proto_dlcr7 | FE_D7_RBS_BMPR | FE_D7_POWER_UP); 515 516 /* Initialize registers. */ 517 bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF); /* Clear all bits. */ 518 bus_space_write_1(bst, bsh, FE_DLCR1, 0xFF); /* ditto. */ 519 bus_space_write_1(bst, bsh, FE_DLCR2, 0x00); 520 bus_space_write_1(bst, bsh, FE_DLCR3, 0x00); 521 bus_space_write_1(bst, bsh, FE_DLCR4, sc->proto_dlcr4); 522 bus_space_write_1(bst, bsh, FE_DLCR5, sc->proto_dlcr5); 523 bus_space_write_1(bst, bsh, FE_BMPR10, 0x00); 524 bus_space_write_1(bst, bsh, FE_BMPR11, FE_B11_CTRL_SKIP); 525 bus_space_write_1(bst, bsh, FE_BMPR12, 0x00); 526 bus_space_write_1(bst, bsh, FE_BMPR13, sc->proto_bmpr13); 527 bus_space_write_1(bst, bsh, FE_BMPR14, FE_B14_FILTER); 528 bus_space_write_1(bst, bsh, FE_BMPR15, 0x00); 529 530 #if FE_DEBUG >= 3 531 log(LOG_INFO, "%s: just before enabling DLC\n", sc->sc_dev.dv_xname); 532 mb86960_dump(LOG_INFO, sc); 533 #endif 534 535 /* Enable interrupts. */ 536 bus_space_write_1(bst, bsh, FE_DLCR2, FE_TMASK); 537 bus_space_write_1(bst, bsh, FE_DLCR3, FE_RMASK); 538 539 /* Enable transmitter and receiver. */ 540 delay(200); 541 bus_space_write_1(bst, bsh, FE_DLCR6, 542 sc->proto_dlcr6 | FE_D6_DLC_ENABLE); 543 delay(200); 544 545 #if FE_DEBUG >= 3 546 log(LOG_INFO, "%s: just after enabling DLC\n", sc->sc_dev.dv_xname); 547 mb86960_dump(LOG_INFO, sc); 548 #endif 549 550 /* 551 * Make sure to empty the receive buffer. 552 * 553 * This may be redundant, but *if* the receive buffer were full 554 * at this point, the driver would hang. I have experienced 555 * some strange hangups just after UP. I hope the following 556 * code solve the problem. 557 * 558 * I have changed the order of hardware initialization. 559 * I think the receive buffer cannot have any packets at this 560 * point in this version. The following code *must* be 561 * redundant now. FIXME. 562 */ 563 for (i = 0; i < FE_MAX_RECV_COUNT; i++) { 564 if (bus_space_read_1(bst, bsh, FE_DLCR5) & FE_D5_BUFEMP) 565 break; 566 mb86960_droppacket(sc); 567 } 568 #if FE_DEBUG >= 1 569 if (i >= FE_MAX_RECV_COUNT) 570 log(LOG_ERR, "%s: cannot empty receive buffer\n", 571 sc->sc_dev.dv_xname); 572 #endif 573 #if FE_DEBUG >= 3 574 if (i < FE_MAX_RECV_COUNT) 575 log(LOG_INFO, "%s: receive buffer emptied (%d)\n", 576 sc->sc_dev.dv_xname, i); 577 #endif 578 579 #if FE_DEBUG >= 3 580 log(LOG_INFO, "%s: after ERB loop\n", sc->sc_dev.dv_xname); 581 mb86960_dump(LOG_INFO, sc); 582 #endif 583 584 /* Do we need this here? */ 585 bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF); /* Clear all bits. */ 586 bus_space_write_1(bst, bsh, FE_DLCR1, 0xFF); /* ditto. */ 587 588 #if FE_DEBUG >= 3 589 log(LOG_INFO, "%s: after FIXME\n", sc->sc_dev.dv_xname); 590 mb86960_dump(LOG_INFO, sc); 591 #endif 592 593 /* Set 'running' flag. */ 594 ifp->if_flags |= IFF_RUNNING; 595 596 /* 597 * At this point, the interface is runnung properly, 598 * except that it receives *no* packets. we then call 599 * mb86960_setmode() to tell the chip what packets to be 600 * received, based on the if_flags and multicast group 601 * list. It completes the initialization process. 602 */ 603 mb86960_setmode(sc); 604 605 #if FE_DEBUG >= 3 606 log(LOG_INFO, "%s: after setmode\n", sc->sc_dev.dv_xname); 607 mb86960_dump(LOG_INFO, sc); 608 #endif 609 610 /* ...and attempt to start output. */ 611 mb86960_start(ifp); 612 613 #if FE_DEBUG >= 3 614 log(LOG_INFO, "%s: end of mb86960_init()\n", sc->sc_dev.dv_xname); 615 mb86960_dump(LOG_INFO, sc); 616 #endif 617 } 618 619 /* 620 * This routine actually starts the transmission on the interface 621 */ 622 static inline void 623 mb86960_xmit(struct mb86960_softc *sc) 624 { 625 bus_space_tag_t bst = sc->sc_bst; 626 bus_space_handle_t bsh = sc->sc_bsh; 627 628 /* 629 * Set a timer just in case we never hear from the board again. 630 * We use longer timeout for multiple packet transmission. 631 * I'm not sure this timer value is appropriate. FIXME. 632 */ 633 sc->sc_ec.ec_if.if_timer = 1 + sc->txb_count; 634 635 /* Update txb variables. */ 636 sc->txb_sched = sc->txb_count; 637 sc->txb_count = 0; 638 sc->txb_free = sc->txb_size; 639 640 #if FE_DELAYED_PADDING 641 /* Omit the postponed padding process. */ 642 sc->txb_padding = 0; 643 #endif 644 645 /* Start transmitter, passing packets in TX buffer. */ 646 bus_space_write_1(bst, bsh, FE_BMPR10, sc->txb_sched | FE_B10_START); 647 } 648 649 /* 650 * Start output on interface. 651 * We make two assumptions here: 652 * 1) that the current priority is set to splnet _before_ this code 653 * is called *and* is returned to the appropriate priority after 654 * return 655 * 2) that the IFF_OACTIVE flag is checked before this code is called 656 * (i.e. that the output part of the interface is idle) 657 */ 658 void 659 mb86960_start(struct ifnet *ifp) 660 { 661 struct mb86960_softc *sc = ifp->if_softc; 662 struct mbuf *m; 663 664 #if FE_DEBUG >= 1 665 /* Just a sanity check. */ 666 if ((sc->txb_count == 0) != (sc->txb_free == sc->txb_size)) { 667 /* 668 * Txb_count and txb_free co-works to manage the 669 * transmission buffer. Txb_count keeps track of the 670 * used potion of the buffer, while txb_free does unused 671 * potion. So, as long as the driver runs properly, 672 * txb_count is zero if and only if txb_free is same 673 * as txb_size (which represents whole buffer.) 674 */ 675 log(LOG_ERR, "%s: inconsistent txb variables (%d, %d)\n", 676 sc->sc_dev.dv_xname, sc->txb_count, sc->txb_free); 677 /* 678 * So, what should I do, then? 679 * 680 * We now know txb_count and txb_free contradicts. We 681 * cannot, however, tell which is wrong. More 682 * over, we cannot peek 86960 transmission buffer or 683 * reset the transmission buffer. (In fact, we can 684 * reset the entire interface. I don't want to do it.) 685 * 686 * If txb_count is incorrect, leaving it as is will cause 687 * sending of gabages after next interrupt. We have to 688 * avoid it. Hence, we reset the txb_count here. If 689 * txb_free was incorrect, resetting txb_count just loose 690 * some packets. We can live with it. 691 */ 692 sc->txb_count = 0; 693 } 694 #endif 695 696 #if FE_DEBUG >= 1 697 /* 698 * First, see if there are buffered packets and an idle 699 * transmitter - should never happen at this point. 700 */ 701 if ((sc->txb_count > 0) && (sc->txb_sched == 0)) { 702 log(LOG_ERR, "%s: transmitter idle with %d buffered packets\n", 703 sc->sc_dev.dv_xname, sc->txb_count); 704 mb86960_xmit(sc); 705 } 706 #endif 707 708 /* 709 * Stop accepting more transmission packets temporarily, when 710 * a filter change request is delayed. Updating the MARs on 711 * 86960 flushes the transmisstion buffer, so it is delayed 712 * until all buffered transmission packets have been sent 713 * out. 714 */ 715 if (sc->filter_change) { 716 /* 717 * Filter change request is delayed only when the DLC is 718 * working. DLC soon raise an interrupt after finishing 719 * the work. 720 */ 721 goto indicate_active; 722 } 723 724 for (;;) { 725 /* 726 * See if there is room to put another packet in the buffer. 727 * We *could* do better job by peeking the send queue to 728 * know the length of the next packet. Current version just 729 * tests against the worst case (i.e., longest packet). FIXME. 730 * 731 * When adding the packet-peek feature, don't forget adding a 732 * test on txb_count against QUEUEING_MAX. 733 * There is a little chance the packet count exceeds 734 * the limit. Assume transmission buffer is 8KB (2x8KB 735 * configuration) and an application sends a bunch of small 736 * (i.e., minimum packet sized) packets rapidly. An 8KB 737 * buffer can hold 130 blocks of 62 bytes long... 738 */ 739 if (sc->txb_free < 740 (ETHER_MAX_LEN - ETHER_CRC_LEN) + FE_TXLEN_SIZE) { 741 /* No room. */ 742 goto indicate_active; 743 } 744 745 #if FE_SINGLE_TRANSMISSION 746 if (sc->txb_count > 0) { 747 /* Just one packet per a transmission buffer. */ 748 goto indicate_active; 749 } 750 #endif 751 752 /* 753 * Get the next mbuf chain for a packet to send. 754 */ 755 IFQ_DEQUEUE(&ifp->if_snd, m); 756 if (m == 0) { 757 /* No more packets to send. */ 758 goto indicate_inactive; 759 } 760 761 #if NBPFILTER > 0 762 /* Tap off here if there is a BPF listener. */ 763 if (ifp->if_bpf) 764 bpf_mtap(ifp->if_bpf, m); 765 #endif 766 767 /* 768 * Copy the mbuf chain into the transmission buffer. 769 * txb_* variables are updated as necessary. 770 */ 771 mb86960_write_mbufs(sc, m); 772 773 m_freem(m); 774 775 /* Start transmitter if it's idle. */ 776 if (sc->txb_sched == 0) 777 mb86960_xmit(sc); 778 } 779 780 indicate_inactive: 781 /* 782 * We are using the !OACTIVE flag to indicate to 783 * the outside world that we can accept an 784 * additional packet rather than that the 785 * transmitter is _actually_ active. Indeed, the 786 * transmitter may be active, but if we haven't 787 * filled all the buffers with data then we still 788 * want to accept more. 789 */ 790 ifp->if_flags &= ~IFF_OACTIVE; 791 return; 792 793 indicate_active: 794 /* 795 * The transmitter is active, and there are no room for 796 * more outgoing packets in the transmission buffer. 797 */ 798 ifp->if_flags |= IFF_OACTIVE; 799 return; 800 } 801 802 /* 803 * Transmission interrupt handler 804 * The control flow of this function looks silly. FIXME. 805 */ 806 void 807 mb86960_tint(struct mb86960_softc *sc, uint8_t tstat) 808 { 809 bus_space_tag_t bst = sc->sc_bst; 810 bus_space_handle_t bsh = sc->sc_bsh; 811 struct ifnet *ifp = &sc->sc_ec.ec_if; 812 int left; 813 int col; 814 815 /* 816 * Handle "excessive collision" interrupt. 817 */ 818 if (tstat & FE_D0_COLL16) { 819 /* 820 * Find how many packets (including this collided one) 821 * are left unsent in transmission buffer. 822 */ 823 left = bus_space_read_1(bst, bsh, FE_BMPR10); 824 825 #if FE_DEBUG >= 2 826 log(LOG_WARNING, "%s: excessive collision (%d/%d)\n", 827 sc->sc_dev.dv_xname, left, sc->txb_sched); 828 #endif 829 #if FE_DEBUG >= 3 830 mb86960_dump(LOG_INFO, sc); 831 #endif 832 833 /* 834 * Update statistics. 835 */ 836 ifp->if_collisions += 16; 837 ifp->if_oerrors++; 838 ifp->if_opackets += sc->txb_sched - left; 839 840 /* 841 * Collision statistics has been updated. 842 * Clear the collision flag on 86960 now to avoid confusion. 843 */ 844 bus_space_write_1(bst, bsh, FE_DLCR0, FE_D0_COLLID); 845 846 /* 847 * Restart transmitter, skipping the 848 * collided packet. 849 * 850 * We *must* skip the packet to keep network running 851 * properly. Excessive collision error is an 852 * indication of the network overload. If we 853 * tried sending the same packet after excessive 854 * collision, the network would be filled with 855 * out-of-time packets. Packets belonging 856 * to reliable transport (such as TCP) are resent 857 * by some upper layer. 858 */ 859 bus_space_write_1(bst, bsh, FE_BMPR11, 860 FE_B11_CTRL_SKIP | FE_B11_MODE1); 861 sc->txb_sched = left - 1; 862 } 863 864 /* 865 * Handle "transmission complete" interrupt. 866 */ 867 if (tstat & FE_D0_TXDONE) { 868 /* 869 * Add in total number of collisions on last 870 * transmission. We also clear "collision occurred" flag 871 * here. 872 * 873 * 86960 has a design flow on collision count on multiple 874 * packet transmission. When we send two or more packets 875 * with one start command (that's what we do when the 876 * transmission queue is clauded), 86960 informs us number 877 * of collisions occurred on the last packet on the 878 * transmission only. Number of collisions on previous 879 * packets are lost. I have told that the fact is clearly 880 * stated in the Fujitsu document. 881 * 882 * I considered not to mind it seriously. Collision 883 * count is not so important, anyway. Any comments? FIXME. 884 */ 885 886 if (bus_space_read_1(bst, bsh, FE_DLCR0) & FE_D0_COLLID) { 887 /* Clear collision flag. */ 888 bus_space_write_1(bst, bsh, FE_DLCR0, FE_D0_COLLID); 889 890 /* Extract collision count from 86960. */ 891 col = bus_space_read_1(bst, bsh, FE_DLCR4) & FE_D4_COL; 892 if (col == 0) { 893 /* 894 * Status register indicates collisions, 895 * while the collision count is zero. 896 * This can happen after multiple packet 897 * transmission, indicating that one or more 898 * previous packet(s) had been collided. 899 * 900 * Since the accurate number of collisions 901 * has been lost, we just guess it as 1; 902 * Am I too optimistic? FIXME. 903 */ 904 col = 1; 905 } else 906 col >>= FE_D4_COL_SHIFT; 907 ifp->if_collisions += col; 908 #if FE_DEBUG >= 4 909 log(LOG_WARNING, "%s: %d collision%s (%d)\n", 910 sc->sc_dev.dv_xname, col, col == 1 ? "" : "s", 911 sc->txb_sched); 912 #endif 913 } 914 915 /* 916 * Update total number of successfully 917 * transmitted packets. 918 */ 919 ifp->if_opackets += sc->txb_sched; 920 sc->txb_sched = 0; 921 } 922 923 if (sc->txb_sched == 0) { 924 /* 925 * The transmitter is no more active. 926 * Reset output active flag and watchdog timer. 927 */ 928 ifp->if_flags &= ~IFF_OACTIVE; 929 ifp->if_timer = 0; 930 931 /* 932 * If more data is ready to transmit in the buffer, start 933 * transmitting them. Otherwise keep transmitter idle, 934 * even if more data is queued. This gives receive 935 * process a slight priority. 936 */ 937 if (sc->txb_count > 0) 938 mb86960_xmit(sc); 939 } 940 } 941 942 /* 943 * Ethernet interface receiver interrupt. 944 */ 945 void 946 mb86960_rint(struct mb86960_softc *sc, uint8_t rstat) 947 { 948 bus_space_tag_t bst = sc->sc_bst; 949 bus_space_handle_t bsh = sc->sc_bsh; 950 struct ifnet *ifp = &sc->sc_ec.ec_if; 951 u_int status, len; 952 int i; 953 954 /* 955 * Update statistics if this interrupt is caused by an error. 956 */ 957 if (rstat & (FE_D1_OVRFLO | FE_D1_CRCERR | FE_D1_ALGERR | 958 FE_D1_SRTPKT)) { 959 #if FE_DEBUG >= 3 960 char sbuf[sizeof(FE_D1_ERRBITS) + 64]; 961 962 bitmask_snprintf(rstat, FE_D1_ERRBITS, sbuf, sizeof(sbuf)); 963 log(LOG_WARNING, "%s: receive error: %s\n", 964 sc->sc_dev.dv_xname, sbuf); 965 #endif 966 ifp->if_ierrors++; 967 } 968 969 /* 970 * MB86960 has a flag indicating "receive queue empty." 971 * We just loop checking the flag to pull out all received 972 * packets. 973 * 974 * We limit the number of iterrations to avoid infinite loop. 975 * It can be caused by a very slow CPU (some broken 976 * peripheral may insert incredible number of wait cycles) 977 * or, worse, by a broken MB86960 chip. 978 */ 979 for (i = 0; i < FE_MAX_RECV_COUNT; i++) { 980 /* Stop the iterration if 86960 indicates no packets. */ 981 if (bus_space_read_1(bst, bsh, FE_DLCR5) & FE_D5_BUFEMP) 982 break; 983 984 /* 985 * Extract receive packet status from the receive 986 * packet header. 987 */ 988 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 989 status = bus_space_read_1(bst, bsh, FE_BMPR8); 990 (void)bus_space_read_1(bst, bsh, FE_BMPR8); 991 } else 992 status = bus_space_read_2(bst, bsh, FE_BMPR8); 993 994 #if FE_DEBUG >= 4 995 log(LOG_INFO, "%s: receive status = %02x\n", 996 sc->sc_dev.dv_xname, status); 997 #endif 998 999 /* 1000 * If there was an error, update statistics and drop 1001 * the packet, unless the interface is in promiscuous 1002 * mode. 1003 */ 1004 if ((status & FE_RXSTAT_GOODPKT) == 0) { 1005 if ((ifp->if_flags & IFF_PROMISC) == 0) { 1006 ifp->if_ierrors++; 1007 mb86960_droppacket(sc); 1008 continue; 1009 } 1010 } 1011 1012 /* 1013 * Extract the packet length from the receive packet header. 1014 * It is a sum of a header (14 bytes) and a payload. 1015 * CRC has been stripped off by the 86960. 1016 */ 1017 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 1018 len = bus_space_read_1(bst, bsh, FE_BMPR8); 1019 len |= bus_space_read_1(bst, bsh, FE_BMPR8) << 8; 1020 } else 1021 len = bus_space_read_2(bst, bsh, FE_BMPR8); 1022 1023 /* 1024 * MB86965 checks the packet length and drop big packet 1025 * before passing it to us. There are no chance we can 1026 * get [crufty] packets. Hence, if the length exceeds 1027 * the specified limit, it means some serious failure, 1028 * such as out-of-sync on receive buffer management. 1029 * 1030 * Is this statement true? FIXME. 1031 */ 1032 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN) || 1033 len < ETHER_HDR_LEN) { 1034 #if FE_DEBUG >= 2 1035 log(LOG_WARNING, 1036 "%s: received a %s packet? (%u bytes)\n", 1037 sc->sc_dev.dv_xname, 1038 len < ETHER_HDR_LEN ? "partial" : "big", len); 1039 #endif 1040 ifp->if_ierrors++; 1041 mb86960_droppacket(sc); 1042 continue; 1043 } 1044 1045 /* 1046 * Check for a short (RUNT) packet. We *do* check 1047 * but do nothing other than print a message. 1048 * Short packets are illegal, but does nothing bad 1049 * if it carries data for upper layer. 1050 */ 1051 #if FE_DEBUG >= 2 1052 if (len < (ETHER_MIN_LEN - ETHER_CRC_LEN)) { 1053 log(LOG_WARNING, 1054 "%s: received a short packet? (%u bytes)\n", 1055 sc->sc_dev.dv_xname, len); 1056 } 1057 #endif 1058 1059 /* 1060 * Go get a packet. 1061 */ 1062 if (mb86960_get_packet(sc, len) == 0) { 1063 /* Skip a packet, updating statistics. */ 1064 #if FE_DEBUG >= 2 1065 log(LOG_WARNING, 1066 "%s: out of mbufs; dropping packet (%u bytes)\n", 1067 sc->sc_dev.dv_xname, len); 1068 #endif 1069 ifp->if_ierrors++; 1070 mb86960_droppacket(sc); 1071 1072 /* 1073 * We stop receiving packets, even if there are 1074 * more in the buffer. We hope we can get more 1075 * mbufs next time. 1076 */ 1077 return; 1078 } 1079 1080 /* Successfully received a packet. Update stat. */ 1081 ifp->if_ipackets++; 1082 } 1083 } 1084 1085 /* 1086 * Ethernet interface interrupt processor 1087 */ 1088 int 1089 mb86960_intr(void *arg) 1090 { 1091 struct mb86960_softc *sc = arg; 1092 bus_space_tag_t bst = sc->sc_bst; 1093 bus_space_handle_t bsh = sc->sc_bsh; 1094 struct ifnet *ifp = &sc->sc_ec.ec_if; 1095 uint8_t tstat, rstat; 1096 1097 if ((sc->sc_stat & FE_STAT_ENABLED) == 0 || 1098 !device_is_active(&sc->sc_dev)) 1099 return (0); 1100 1101 #if FE_DEBUG >= 4 1102 log(LOG_INFO, "%s: mb86960_intr()\n", sc->sc_dev.dv_xname); 1103 mb86960_dump(LOG_INFO, sc); 1104 #endif 1105 1106 /* 1107 * Get interrupt conditions, masking unneeded flags. 1108 */ 1109 tstat = bus_space_read_1(bst, bsh, FE_DLCR0) & FE_TMASK; 1110 rstat = bus_space_read_1(bst, bsh, FE_DLCR1) & FE_RMASK; 1111 if (tstat == 0 && rstat == 0) 1112 return (0); 1113 1114 /* 1115 * Loop until there are no more new interrupt conditions. 1116 */ 1117 for (;;) { 1118 /* 1119 * Reset the conditions we are acknowledging. 1120 */ 1121 bus_space_write_1(bst, bsh, FE_DLCR0, tstat); 1122 bus_space_write_1(bst, bsh, FE_DLCR1, rstat); 1123 1124 /* 1125 * Handle transmitter interrupts. Handle these first because 1126 * the receiver will reset the board under some conditions. 1127 */ 1128 if (tstat != 0) 1129 mb86960_tint(sc, tstat); 1130 1131 /* 1132 * Handle receiver interrupts. 1133 */ 1134 if (rstat != 0) 1135 mb86960_rint(sc, rstat); 1136 1137 /* 1138 * Update the multicast address filter if it is 1139 * needed and possible. We do it now, because 1140 * we can make sure the transmission buffer is empty, 1141 * and there is a good chance that the receive queue 1142 * is empty. It will minimize the possibility of 1143 * packet lossage. 1144 */ 1145 if (sc->filter_change && 1146 sc->txb_count == 0 && sc->txb_sched == 0) { 1147 mb86960_loadmar(sc); 1148 ifp->if_flags &= ~IFF_OACTIVE; 1149 } 1150 1151 /* 1152 * If it looks like the transmitter can take more data, 1153 * attempt to start output on the interface. This is done 1154 * after handling the receiver interrupt to give the 1155 * receive operation priority. 1156 */ 1157 if ((ifp->if_flags & IFF_OACTIVE) == 0) 1158 mb86960_start(ifp); 1159 1160 #if NRND > 0 1161 if (rstat != 0 || tstat != 0) 1162 rnd_add_uint32(&sc->rnd_source, rstat + tstat); 1163 #endif 1164 1165 /* 1166 * Get interrupt conditions, masking unneeded flags. 1167 */ 1168 tstat = bus_space_read_1(bst, bsh, FE_DLCR0) & FE_TMASK; 1169 rstat = bus_space_read_1(bst, bsh, FE_DLCR1) & FE_RMASK; 1170 if (tstat == 0 && rstat == 0) 1171 return (1); 1172 } 1173 } 1174 1175 /* 1176 * Process an ioctl request. This code needs some work - it looks pretty ugly. 1177 */ 1178 int 1179 mb86960_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1180 { 1181 struct mb86960_softc *sc = ifp->if_softc; 1182 struct ifaddr *ifa = (struct ifaddr *)data; 1183 struct ifreq *ifr = (struct ifreq *)data; 1184 int s, error = 0; 1185 1186 #if FE_DEBUG >= 3 1187 log(LOG_INFO, "%s: ioctl(%lx)\n", sc->sc_dev.dv_xname, cmd); 1188 #endif 1189 1190 s = splnet(); 1191 1192 switch (cmd) { 1193 case SIOCSIFADDR: 1194 if ((error = mb86960_enable(sc)) != 0) 1195 break; 1196 ifp->if_flags |= IFF_UP; 1197 1198 switch (ifa->ifa_addr->sa_family) { 1199 #ifdef INET 1200 case AF_INET: 1201 mb86960_init(sc); 1202 arp_ifinit(ifp, ifa); 1203 break; 1204 #endif 1205 #ifdef NS 1206 case AF_NS: 1207 { 1208 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1209 1210 if (ns_nullhost(*ina)) 1211 ina->x_host = 1212 *(union ns_host *)LLADDR(ifp->if_sadl); 1213 else { 1214 memcpy(LLADDR(ifp->if_sadl), 1215 ina->x_host.c_host, ETHER_ADDR_LEN); 1216 } 1217 /* Set new address. */ 1218 mb86960_init(sc); 1219 break; 1220 } 1221 #endif 1222 default: 1223 mb86960_init(sc); 1224 break; 1225 } 1226 break; 1227 1228 case SIOCSIFFLAGS: 1229 if ((ifp->if_flags & IFF_UP) == 0 && 1230 (ifp->if_flags & IFF_RUNNING) != 0) { 1231 /* 1232 * If interface is marked down and it is running, then 1233 * stop it. 1234 */ 1235 mb86960_stop(sc); 1236 ifp->if_flags &= ~IFF_RUNNING; 1237 mb86960_disable(sc); 1238 } else if ((ifp->if_flags & IFF_UP) != 0 && 1239 (ifp->if_flags & IFF_RUNNING) == 0) { 1240 /* 1241 * If interface is marked up and it is stopped, then 1242 * start it. 1243 */ 1244 if ((error = mb86960_enable(sc)) != 0) 1245 break; 1246 mb86960_init(sc); 1247 } else if ((ifp->if_flags & IFF_UP) != 0) { 1248 /* 1249 * Reset the interface to pick up changes in any other 1250 * flags that affect hardware registers. 1251 */ 1252 mb86960_setmode(sc); 1253 } 1254 #if FE_DEBUG >= 1 1255 /* "ifconfig fe0 debug" to print register dump. */ 1256 if (ifp->if_flags & IFF_DEBUG) { 1257 log(LOG_INFO, "%s: SIOCSIFFLAGS(DEBUG)\n", 1258 sc->sc_dev.dv_xname); 1259 mb86960_dump(LOG_DEBUG, sc); 1260 } 1261 #endif 1262 break; 1263 1264 case SIOCADDMULTI: 1265 case SIOCDELMULTI: 1266 if ((sc->sc_stat & FE_STAT_ENABLED) == 0) { 1267 error = EIO; 1268 break; 1269 } 1270 1271 /* Update our multicast list. */ 1272 error = (cmd == SIOCADDMULTI) ? 1273 ether_addmulti(ifr, &sc->sc_ec) : 1274 ether_delmulti(ifr, &sc->sc_ec); 1275 1276 if (error == ENETRESET) { 1277 /* 1278 * Multicast list has changed; set the hardware filter 1279 * accordingly. 1280 */ 1281 if (ifp->if_flags & IFF_RUNNING) 1282 mb86960_setmode(sc); 1283 error = 0; 1284 } 1285 break; 1286 1287 case SIOCGIFMEDIA: 1288 case SIOCSIFMEDIA: 1289 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); 1290 break; 1291 1292 default: 1293 error = EINVAL; 1294 break; 1295 } 1296 1297 splx(s); 1298 return (error); 1299 } 1300 1301 /* 1302 * Retrieve packet from receive buffer and send to the next level up via 1303 * ether_input(). If there is a BPF listener, give a copy to BPF, too. 1304 * Returns 0 if success, -1 if error (i.e., mbuf allocation failure). 1305 */ 1306 int 1307 mb86960_get_packet(struct mb86960_softc *sc, u_int len) 1308 { 1309 bus_space_tag_t bst = sc->sc_bst; 1310 bus_space_handle_t bsh = sc->sc_bsh; 1311 struct ifnet *ifp = &sc->sc_ec.ec_if; 1312 struct mbuf *m; 1313 1314 /* Allocate a header mbuf. */ 1315 MGETHDR(m, M_DONTWAIT, MT_DATA); 1316 if (m == 0) 1317 return (0); 1318 m->m_pkthdr.rcvif = ifp; 1319 m->m_pkthdr.len = len; 1320 1321 /* The following silliness is to make NFS happy. */ 1322 #define EROUND ((sizeof(struct ether_header) + 3) & ~3) 1323 #define EOFF (EROUND - sizeof(struct ether_header)) 1324 1325 /* 1326 * Our strategy has one more problem. There is a policy on 1327 * mbuf cluster allocation. It says that we must have at 1328 * least MINCLSIZE (208 bytes) to allocate a cluster. For a 1329 * packet of a size between (MHLEN - 2) to (MINCLSIZE - 2), 1330 * our code violates the rule... 1331 * On the other hand, the current code is short, simple, 1332 * and fast, however. It does no harmful thing, just waists 1333 * some memory. Any comments? FIXME. 1334 */ 1335 1336 /* Attach a cluster if this packet doesn't fit in a normal mbuf. */ 1337 if (len > MHLEN - EOFF) { 1338 MCLGET(m, M_DONTWAIT); 1339 if ((m->m_flags & M_EXT) == 0) { 1340 m_freem(m); 1341 return (0); 1342 } 1343 } 1344 1345 /* 1346 * The following assumes there is room for the ether header in the 1347 * header mbuf. 1348 */ 1349 m->m_data += EOFF; 1350 1351 /* Set the length of this packet. */ 1352 m->m_len = len; 1353 1354 /* Get a packet. */ 1355 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) 1356 bus_space_read_multi_1(bst, bsh, FE_BMPR8, 1357 mtod(m, uint8_t *), len); 1358 else 1359 bus_space_read_multi_stream_2(bst, bsh, FE_BMPR8, 1360 mtod(m, uint16_t *), (len + 1) >> 1); 1361 1362 #if NBPFILTER > 0 1363 /* 1364 * Check if there's a BPF listener on this interface. If so, hand off 1365 * the raw packet to bpf. 1366 */ 1367 if (ifp->if_bpf) 1368 bpf_mtap(ifp->if_bpf, m); 1369 #endif 1370 1371 (*ifp->if_input)(ifp, m); 1372 return (1); 1373 } 1374 1375 /* 1376 * Write an mbuf chain to the transmission buffer memory using 16 bit PIO. 1377 * Returns number of bytes actually written, including length word. 1378 * 1379 * If an mbuf chain is too long for an Ethernet frame, it is not sent. 1380 * Packets shorter than Ethernet minimum are legal, and we pad them 1381 * before sending out. An exception is "partial" packets which are 1382 * shorter than mandatory Ethernet header. 1383 * 1384 * I wrote a code for an experimental "delayed padding" technique. 1385 * When employed, it postpones the padding process for short packets. 1386 * If xmit() occurred at the moment, the padding process is omitted, and 1387 * garbages are sent as pad data. If next packet is stored in the 1388 * transmission buffer before xmit(), write_mbuf() pads the previous 1389 * packet before transmitting new packet. This *may* gain the 1390 * system performance (slightly). 1391 */ 1392 void 1393 mb86960_write_mbufs(struct mb86960_softc *sc, struct mbuf *m) 1394 { 1395 bus_space_tag_t bst = sc->sc_bst; 1396 bus_space_handle_t bsh = sc->sc_bsh; 1397 int totlen, len; 1398 #if FE_DEBUG >= 2 1399 struct mbuf *mp; 1400 #endif 1401 1402 #if FE_DELAYED_PADDING 1403 /* Do the "delayed padding." */ 1404 if (sc->txb_padding > 0) { 1405 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 1406 for (len = sc->txb_padding; len > 0; len--) 1407 bus_space_write_1(bst, bsh, FE_BMPR8, 0); 1408 } else { 1409 for (len = sc->txb_padding >> 1; len > 0; len--) 1410 bus_space_write_2(bst, bsh, FE_BMPR8, 0); 1411 } 1412 sc->txb_padding = 0; 1413 } 1414 #endif 1415 1416 /* We need to use m->m_pkthdr.len, so require the header */ 1417 if ((m->m_flags & M_PKTHDR) == 0) 1418 panic("mb86960_write_mbufs: no header mbuf"); 1419 1420 #if FE_DEBUG >= 2 1421 /* First, count up the total number of bytes to copy. */ 1422 for (totlen = 0, mp = m; mp != 0; mp = mp->m_next) 1423 totlen += mp->m_len; 1424 /* Check if this matches the one in the packet header. */ 1425 if (totlen != m->m_pkthdr.len) 1426 log(LOG_WARNING, "%s: packet length mismatch? (%d/%d)\n", 1427 sc->sc_dev.dv_xname, totlen, m->m_pkthdr.len); 1428 #else 1429 /* Just use the length value in the packet header. */ 1430 totlen = m->m_pkthdr.len; 1431 #endif 1432 1433 #if FE_DEBUG >= 1 1434 /* 1435 * Should never send big packets. If such a packet is passed, 1436 * it should be a bug of upper layer. We just ignore it. 1437 * ... Partial (too short) packets, neither. 1438 */ 1439 if (totlen > (ETHER_MAX_LEN - ETHER_CRC_LEN) || 1440 totlen < ETHER_HDR_LEN) { 1441 log(LOG_ERR, "%s: got a %s packet (%u bytes) to send\n", 1442 sc->sc_dev.dv_xname, 1443 totlen < ETHER_HDR_LEN ? "partial" : "big", totlen); 1444 sc->sc_ec.ec_if.if_oerrors++; 1445 return; 1446 } 1447 #endif 1448 1449 /* 1450 * Put the length word for this frame. 1451 * Does 86960 accept odd length? -- Yes. 1452 * Do we need to pad the length to minimum size by ourselves? 1453 * -- Generally yes. But for (or will be) the last 1454 * packet in the transmission buffer, we can skip the 1455 * padding process. It may gain performance slightly. FIXME. 1456 */ 1457 len = max(totlen, (ETHER_MIN_LEN - ETHER_CRC_LEN)); 1458 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 1459 bus_space_write_1(bst, bsh, FE_BMPR8, len); 1460 bus_space_write_1(bst, bsh, FE_BMPR8, len >> 8); 1461 } else { 1462 bus_space_write_2(bst, bsh, FE_BMPR8, len); 1463 /* roundup packet length since we will use word access */ 1464 totlen = (totlen + 1) & ~1; 1465 } 1466 1467 /* 1468 * Update buffer status now. 1469 * Truncate the length up to an even number 1470 * if the chip is set in SBW_WORD mode. 1471 */ 1472 sc->txb_free -= FE_TXLEN_SIZE + 1473 max(totlen, (ETHER_MIN_LEN - ETHER_CRC_LEN)); 1474 sc->txb_count++; 1475 1476 #if FE_DELAYED_PADDING 1477 /* Postpone the packet padding if necessary. */ 1478 if (totlen < (ETHER_MIN_LEN - ETHER_CRC_LEN)) 1479 sc->txb_padding = (ETHER_MIN_LEN - ETHER_CRC_LEN) - totlen; 1480 #endif 1481 1482 /* 1483 * Transfer the data from mbuf chain to the transmission buffer. 1484 * If the MB86960 is configured in word mode, data needs to be 1485 * transferred as words, and only words. 1486 * So that we require some extra code to patch over odd-length 1487 * or unaligned mbufs. 1488 */ 1489 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 1490 /* It's simple in byte mode. */ 1491 for (; m != NULL; m = m->m_next) { 1492 if (m->m_len) { 1493 bus_space_write_multi_1(bst, bsh, FE_BMPR8, 1494 mtod(m, uint8_t *), m->m_len); 1495 } 1496 } 1497 } else { 1498 /* a bit trickier in word mode. */ 1499 uint8_t *data, savebyte[2]; 1500 int leftover; 1501 1502 leftover = 0; 1503 savebyte[0] = savebyte[1] = 0; 1504 1505 for (; m != NULL; m = m->m_next) { 1506 len = m->m_len; 1507 if (len == 0) 1508 continue; 1509 data = mtod(m, uint8_t *); 1510 while (len > 0) { 1511 if (leftover) { 1512 /* 1513 * Data left over (from mbuf or 1514 * realignment). Buffer the next 1515 * byte, and write it and the 1516 * leftover data out. 1517 */ 1518 savebyte[1] = *data++; 1519 len--; 1520 bus_space_write_stream_2(bst, bsh, 1521 FE_BMPR8, *(uint16_t *)savebyte); 1522 leftover = 0; 1523 } else if (BUS_SPACE_ALIGNED_POINTER(data, 1524 uint16_t) == 0) { 1525 /* 1526 * Unaligned data; buffer the next byte. 1527 */ 1528 savebyte[0] = *data++; 1529 len--; 1530 leftover = 1; 1531 } else { 1532 /* 1533 * Aligned data; output contiguous 1534 * words as much as we can, then 1535 * buffer the remaining byte, if any. 1536 */ 1537 leftover = len & 1; 1538 len &= ~1; 1539 bus_space_write_multi_stream_2(bst, bsh, 1540 FE_BMPR8, (uint16_t *)data, 1541 len >> 1); 1542 data += len; 1543 if (leftover) 1544 savebyte[0] = *data++; 1545 len = 0; 1546 } 1547 } 1548 if (len < 0) 1549 panic("mb86960_write_mbufs: negative len"); 1550 } 1551 if (leftover) { 1552 savebyte[1] = 0; 1553 bus_space_write_stream_2(bst, bsh, FE_BMPR8, 1554 *(uint16_t *)savebyte); 1555 } 1556 } 1557 #if FE_DELAYED_PADDING == 0 1558 /* 1559 * Pad the packet to the minimum length if necessary. 1560 */ 1561 len = (ETHER_MIN_LEN - ETHER_CRC_LEN) - totlen; 1562 if (len > 0) { 1563 if (sc->sc_flags & FE_FLAGS_SBW_BYTE) { 1564 while (len-- > 0) 1565 bus_space_write_1(bst, bsh, FE_BMPR8, 0); 1566 } else { 1567 len >>= 1; 1568 while (len-- > 0) 1569 bus_space_write_2(bst, bsh, FE_BMPR8, 0); 1570 } 1571 } 1572 #endif 1573 } 1574 1575 /* 1576 * Compute the multicast address filter from the 1577 * list of multicast addresses we need to listen to. 1578 */ 1579 void 1580 mb86960_getmcaf(struct ethercom *ec, uint8_t *af) 1581 { 1582 struct ifnet *ifp = &ec->ec_if; 1583 struct ether_multi *enm; 1584 uint32_t crc; 1585 struct ether_multistep step; 1586 1587 /* 1588 * Set up multicast address filter by passing all multicast addresses 1589 * through a crc generator, and then using the high order 6 bits as an 1590 * index into the 64 bit logical address filter. The high order bit 1591 * selects the word, while the rest of the bits select the bit within 1592 * the word. 1593 */ 1594 1595 if ((ifp->if_flags & IFF_PROMISC) != 0) 1596 goto allmulti; 1597 1598 memset(af, 0, FE_FILTER_LEN); 1599 ETHER_FIRST_MULTI(step, ec, enm); 1600 while (enm != NULL) { 1601 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 1602 sizeof(enm->enm_addrlo)) != 0) { 1603 /* 1604 * We must listen to a range of multicast addresses. 1605 * For now, just accept all multicasts, rather than 1606 * trying to set only those filter bits needed to match 1607 * the range. (At this time, the only use of address 1608 * ranges is for IP multicast routing, for which the 1609 * range is big enough to require all bits set.) 1610 */ 1611 goto allmulti; 1612 } 1613 1614 crc = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN); 1615 1616 /* Just want the 6 most significant bits. */ 1617 crc >>= 26; 1618 1619 /* Turn on the corresponding bit in the filter. */ 1620 af[crc >> 3] |= 1 << (crc & 7); 1621 1622 ETHER_NEXT_MULTI(step, enm); 1623 } 1624 ifp->if_flags &= ~IFF_ALLMULTI; 1625 return; 1626 1627 allmulti: 1628 ifp->if_flags |= IFF_ALLMULTI; 1629 memset(af, 0xff, FE_FILTER_LEN); 1630 } 1631 1632 /* 1633 * Calculate a new "multicast packet filter" and put the 86960 1634 * receiver in appropriate mode. 1635 */ 1636 void 1637 mb86960_setmode(struct mb86960_softc *sc) 1638 { 1639 bus_space_tag_t bst = sc->sc_bst; 1640 bus_space_handle_t bsh = sc->sc_bsh; 1641 int flags = sc->sc_ec.ec_if.if_flags; 1642 1643 /* 1644 * If the interface is not running, we postpone the update 1645 * process for receive modes and multicast address filter 1646 * until the interface is restarted. It reduces some 1647 * complicated job on maintaining chip states. (Earlier versions 1648 * of this driver had a bug on that point...) 1649 * 1650 * To complete the trick, mb86960_init() calls mb86960_setmode() after 1651 * restarting the interface. 1652 */ 1653 if ((flags & IFF_RUNNING) == 0) 1654 return; 1655 1656 /* 1657 * Promiscuous mode is handled separately. 1658 */ 1659 if ((flags & IFF_PROMISC) != 0) { 1660 /* 1661 * Program 86960 to receive all packets on the segment 1662 * including those directed to other stations. 1663 * Multicast filter stored in MARs are ignored 1664 * under this setting, so we don't need to update it. 1665 * 1666 * Promiscuous mode is used solely by BPF, and BPF only 1667 * listens to valid (no error) packets. So, we ignore 1668 * errornous ones even in this mode. 1669 */ 1670 bus_space_write_1(bst, bsh, FE_DLCR5, 1671 sc->proto_dlcr5 | FE_D5_AFM0 | FE_D5_AFM1); 1672 sc->filter_change = 0; 1673 1674 #if FE_DEBUG >= 3 1675 log(LOG_INFO, "%s: promiscuous mode\n", sc->sc_dev.dv_xname); 1676 #endif 1677 return; 1678 } 1679 1680 /* 1681 * Turn the chip to the normal (non-promiscuous) mode. 1682 */ 1683 bus_space_write_1(bst, bsh, FE_DLCR5, sc->proto_dlcr5 | FE_D5_AFM1); 1684 1685 /* 1686 * Find the new multicast filter value. 1687 */ 1688 mb86960_getmcaf(&sc->sc_ec, sc->filter); 1689 sc->filter_change = 1; 1690 1691 #if FE_DEBUG >= 3 1692 log(LOG_INFO, 1693 "%s: address filter: [%02x %02x %02x %02x %02x %02x %02x %02x]\n", 1694 sc->sc_dev.dv_xname, 1695 sc->filter[0], sc->filter[1], sc->filter[2], sc->filter[3], 1696 sc->filter[4], sc->filter[5], sc->filter[6], sc->filter[7]); 1697 #endif 1698 1699 /* 1700 * We have to update the multicast filter in the 86960, A.S.A.P. 1701 * 1702 * Note that the DLC (Data Linc Control unit, i.e. transmitter 1703 * and receiver) must be stopped when feeding the filter, and 1704 * DLC trashes all packets in both transmission and receive 1705 * buffers when stopped. 1706 * 1707 * ... Are the above sentenses correct? I have to check the 1708 * manual of the MB86960A. FIXME. 1709 * 1710 * To reduce the packet lossage, we delay the filter update 1711 * process until buffers are empty. 1712 */ 1713 if (sc->txb_sched == 0 && sc->txb_count == 0 && 1714 (bus_space_read_1(bst, bsh, FE_DLCR1) & FE_D1_PKTRDY) == 0) { 1715 /* 1716 * Buffers are (apparently) empty. Load 1717 * the new filter value into MARs now. 1718 */ 1719 mb86960_loadmar(sc); 1720 } else { 1721 /* 1722 * Buffers are not empty. Mark that we have to update 1723 * the MARs. The new filter will be loaded by mb86960_intr() 1724 * later. 1725 */ 1726 #if FE_DEBUG >= 4 1727 log(LOG_INFO, "%s: filter change delayed\n", 1728 sc->sc_dev.dv_xname); 1729 #endif 1730 } 1731 } 1732 1733 /* 1734 * Load a new multicast address filter into MARs. 1735 * 1736 * The caller must have splnet'ed befor mb86960_loadmar. 1737 * This function starts the DLC upon return. So it can be called only 1738 * when the chip is working, i.e., from the driver's point of view, when 1739 * a device is RUNNING. (I mistook the point in previous versions.) 1740 */ 1741 void 1742 mb86960_loadmar(struct mb86960_softc *sc) 1743 { 1744 bus_space_tag_t bst = sc->sc_bst; 1745 bus_space_handle_t bsh = sc->sc_bsh; 1746 1747 /* Stop the DLC (transmitter and receiver). */ 1748 bus_space_write_1(bst, bsh, FE_DLCR6, 1749 sc->proto_dlcr6 | FE_D6_DLC_DISABLE); 1750 1751 /* Select register bank 1 for MARs. */ 1752 bus_space_write_1(bst, bsh, FE_DLCR7, 1753 sc->proto_dlcr7 | FE_D7_RBS_MAR | FE_D7_POWER_UP); 1754 1755 /* Copy filter value into the registers. */ 1756 bus_space_write_region_1(bst, bsh, FE_MAR8, sc->filter, FE_FILTER_LEN); 1757 1758 /* Restore the bank selection for BMPRs (i.e., runtime registers). */ 1759 bus_space_write_1(bst, bsh, FE_DLCR7, 1760 sc->proto_dlcr7 | FE_D7_RBS_BMPR | FE_D7_POWER_UP); 1761 1762 /* Restart the DLC. */ 1763 bus_space_write_1(bst, bsh, FE_DLCR6, 1764 sc->proto_dlcr6 | FE_D6_DLC_ENABLE); 1765 1766 /* We have just updated the filter. */ 1767 sc->filter_change = 0; 1768 1769 #if FE_DEBUG >= 3 1770 log(LOG_INFO, "%s: address filter changed\n", sc->sc_dev.dv_xname); 1771 #endif 1772 } 1773 1774 /* 1775 * Enable power on the interface. 1776 */ 1777 int 1778 mb86960_enable(struct mb86960_softc *sc) 1779 { 1780 1781 #if FE_DEBUG >= 3 1782 log(LOG_INFO, "%s: mb86960_enable()\n", sc->sc_dev.dv_xname); 1783 #endif 1784 1785 if ((sc->sc_stat & FE_STAT_ENABLED) == 0 && sc->sc_enable != NULL) { 1786 if ((*sc->sc_enable)(sc) != 0) { 1787 printf("%s: device enable failed\n", 1788 sc->sc_dev.dv_xname); 1789 return (EIO); 1790 } 1791 } 1792 1793 sc->sc_stat |= FE_STAT_ENABLED; 1794 return (0); 1795 } 1796 1797 /* 1798 * Disable power on the interface. 1799 */ 1800 void 1801 mb86960_disable(struct mb86960_softc *sc) 1802 { 1803 1804 #if FE_DEBUG >= 3 1805 log(LOG_INFO, "%s: mb86960_disable()\n", sc->sc_dev.dv_xname); 1806 #endif 1807 1808 if ((sc->sc_stat & FE_STAT_ENABLED) != 0 && sc->sc_disable != NULL) { 1809 (*sc->sc_disable)(sc); 1810 sc->sc_stat &= ~FE_STAT_ENABLED; 1811 } 1812 } 1813 1814 /* 1815 * mbe_activate: 1816 * 1817 * Handle device activation/deactivation requests. 1818 */ 1819 int 1820 mb86960_activate(struct device *self, enum devact act) 1821 { 1822 struct mb86960_softc *sc = (struct mb86960_softc *)self; 1823 int rv, s; 1824 1825 rv = 0; 1826 s = splnet(); 1827 switch (act) { 1828 case DVACT_ACTIVATE: 1829 rv = EOPNOTSUPP; 1830 break; 1831 1832 case DVACT_DEACTIVATE: 1833 if_deactivate(&sc->sc_ec.ec_if); 1834 break; 1835 } 1836 splx(s); 1837 return (rv); 1838 } 1839 1840 /* 1841 * mb86960_detach: 1842 * 1843 * Detach a MB86960 interface. 1844 */ 1845 int 1846 mb86960_detach(struct mb86960_softc *sc) 1847 { 1848 struct ifnet *ifp = &sc->sc_ec.ec_if; 1849 1850 /* Succeed now if there's no work to do. */ 1851 if ((sc->sc_stat & FE_STAT_ATTACHED) == 0) 1852 return (0); 1853 1854 /* Delete all media. */ 1855 ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY); 1856 1857 #if NRND > 0 1858 /* Unhook the entropy source. */ 1859 rnd_detach_source(&sc->rnd_source); 1860 #endif 1861 ether_ifdetach(ifp); 1862 if_detach(ifp); 1863 1864 mb86960_disable(sc); 1865 return (0); 1866 } 1867 1868 /* 1869 * Routines to read all bytes from the config EEPROM (93C06) through MB86965A. 1870 */ 1871 void 1872 mb86965_read_eeprom(bus_space_tag_t iot, bus_space_handle_t ioh, uint8_t *data) 1873 { 1874 int addr, op, bit; 1875 uint16_t val; 1876 1877 /* Read bytes from EEPROM; two bytes per an iteration. */ 1878 for (addr = 0; addr < FE_EEPROM_SIZE / 2; addr++) { 1879 /* Reset the EEPROM interface. */ 1880 bus_space_write_1(iot, ioh, FE_BMPR16, 0x00); 1881 bus_space_write_1(iot, ioh, FE_BMPR17, 0x00); 1882 bus_space_write_1(iot, ioh, FE_BMPR16, FE_B16_SELECT); 1883 1884 /* Send start bit. */ 1885 bus_space_write_1(iot, ioh, FE_BMPR17, FE_B17_DATA); 1886 FE_EEPROM_DELAY(); 1887 bus_space_write_1(iot, ioh, 1888 FE_BMPR16, FE_B16_SELECT | FE_B16_CLOCK); 1889 FE_EEPROM_DELAY(); 1890 bus_space_write_1(iot, ioh, FE_BMPR16, FE_B16_SELECT); 1891 1892 /* Send read command and read address. */ 1893 op = 0x80 | addr; /* READ instruction */ 1894 for (bit = 8; bit > 0; bit--) { 1895 bus_space_write_1(iot, ioh, FE_BMPR17, 1896 (op & (1 << (bit - 1))) ? FE_B17_DATA : 0); 1897 FE_EEPROM_DELAY(); 1898 bus_space_write_1(iot, ioh, 1899 FE_BMPR16, FE_B16_SELECT | FE_B16_CLOCK); 1900 FE_EEPROM_DELAY(); 1901 bus_space_write_1(iot, ioh, FE_BMPR16, FE_B16_SELECT); 1902 } 1903 bus_space_write_1(iot, ioh, FE_BMPR17, 0x00); 1904 1905 /* Read two bytes in each address */ 1906 val = 0; 1907 for (bit = 16; bit > 0; bit--) { 1908 FE_EEPROM_DELAY(); 1909 bus_space_write_1(iot, ioh, 1910 FE_BMPR16, FE_B16_SELECT | FE_B16_CLOCK); 1911 FE_EEPROM_DELAY(); 1912 if (bus_space_read_1(iot, ioh, FE_BMPR17) & 1913 FE_B17_DATA) 1914 val |= 1 << (bit - 1); 1915 bus_space_write_1(iot, ioh, 1916 FE_BMPR16, FE_B16_SELECT); 1917 } 1918 data[addr * 2] = val >> 8; 1919 data[addr * 2 + 1] = val & 0xff; 1920 } 1921 1922 /* Make sure the EEPROM is turned off. */ 1923 bus_space_write_1(iot, ioh, FE_BMPR16, 0); 1924 bus_space_write_1(iot, ioh, FE_BMPR17, 0); 1925 1926 #if FE_DEBUG >= 3 1927 /* Report what we got. */ 1928 log(LOG_INFO, "mb86965_read_eeprom: " 1929 " %02x%02x%02x%02x %02x%02x%02x%02x -" 1930 " %02x%02x%02x%02x %02x%02x%02x%02x -" 1931 " %02x%02x%02x%02x %02x%02x%02x%02x -" 1932 " %02x%02x%02x%02x %02x%02x%02x%02x\n", 1933 data[ 0], data[ 1], data[ 2], data[ 3], 1934 data[ 4], data[ 5], data[ 6], data[ 7], 1935 data[ 8], data[ 9], data[10], data[11], 1936 data[12], data[13], data[14], data[15], 1937 data[16], data[17], data[18], data[19], 1938 data[20], data[21], data[22], data[23], 1939 data[24], data[25], data[26], data[27], 1940 data[28], data[29], data[30], data[31]); 1941 #endif 1942 } 1943 1944 #if FE_DEBUG >= 1 1945 void 1946 mb86960_dump(int level, struct mb86960_softc *sc) 1947 { 1948 bus_space_tag_t bst = sc->sc_bst; 1949 bus_space_handle_t bsh = sc->sc_bsh; 1950 uint8_t save_dlcr7; 1951 1952 save_dlcr7 = bus_space_read_1(bst, bsh, FE_DLCR7); 1953 1954 log(level, "\tDLCR = %02x %02x %02x %02x %02x %02x %02x %02x\n", 1955 bus_space_read_1(bst, bsh, FE_DLCR0), 1956 bus_space_read_1(bst, bsh, FE_DLCR1), 1957 bus_space_read_1(bst, bsh, FE_DLCR2), 1958 bus_space_read_1(bst, bsh, FE_DLCR3), 1959 bus_space_read_1(bst, bsh, FE_DLCR4), 1960 bus_space_read_1(bst, bsh, FE_DLCR5), 1961 bus_space_read_1(bst, bsh, FE_DLCR6), 1962 bus_space_read_1(bst, bsh, FE_DLCR7)); 1963 1964 bus_space_write_1(bst, bsh, FE_DLCR7, 1965 (save_dlcr7 & ~FE_D7_RBS) | FE_D7_RBS_DLCR); 1966 log(level, "\t %02x %02x %02x %02x %02x %02x %02x %02x\n", 1967 bus_space_read_1(bst, bsh, FE_DLCR8), 1968 bus_space_read_1(bst, bsh, FE_DLCR9), 1969 bus_space_read_1(bst, bsh, FE_DLCR10), 1970 bus_space_read_1(bst, bsh, FE_DLCR11), 1971 bus_space_read_1(bst, bsh, FE_DLCR12), 1972 bus_space_read_1(bst, bsh, FE_DLCR13), 1973 bus_space_read_1(bst, bsh, FE_DLCR14), 1974 bus_space_read_1(bst, bsh, FE_DLCR15)); 1975 1976 bus_space_write_1(bst, bsh, FE_DLCR7, 1977 (save_dlcr7 & ~FE_D7_RBS) | FE_D7_RBS_MAR); 1978 log(level, "\tMAR = %02x %02x %02x %02x %02x %02x %02x %02x\n", 1979 bus_space_read_1(bst, bsh, FE_MAR8), 1980 bus_space_read_1(bst, bsh, FE_MAR9), 1981 bus_space_read_1(bst, bsh, FE_MAR10), 1982 bus_space_read_1(bst, bsh, FE_MAR11), 1983 bus_space_read_1(bst, bsh, FE_MAR12), 1984 bus_space_read_1(bst, bsh, FE_MAR13), 1985 bus_space_read_1(bst, bsh, FE_MAR14), 1986 bus_space_read_1(bst, bsh, FE_MAR15)); 1987 1988 bus_space_write_1(bst, bsh, FE_DLCR7, 1989 (save_dlcr7 & ~FE_D7_RBS) | FE_D7_RBS_BMPR); 1990 log(level, 1991 "\tBMPR = xx xx %02x %02x %02x %02x %02x %02x %02x %02x xx %02x\n", 1992 bus_space_read_1(bst, bsh, FE_BMPR10), 1993 bus_space_read_1(bst, bsh, FE_BMPR11), 1994 bus_space_read_1(bst, bsh, FE_BMPR12), 1995 bus_space_read_1(bst, bsh, FE_BMPR13), 1996 bus_space_read_1(bst, bsh, FE_BMPR14), 1997 bus_space_read_1(bst, bsh, FE_BMPR15), 1998 bus_space_read_1(bst, bsh, FE_BMPR16), 1999 bus_space_read_1(bst, bsh, FE_BMPR17), 2000 bus_space_read_1(bst, bsh, FE_BMPR19)); 2001 2002 bus_space_write_1(bst, bsh, FE_DLCR7, save_dlcr7); 2003 } 2004 #endif 2005 2006
Indexes created Mon Oct 27 20:09:55 GMT 2025