1 /*- 2 * Written by: David Jeffery 3 * Copyright (c) 2002 Adaptec Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/ips/ips_commands.c,v 1.8 2004/01/01 10:22:10 mbr $ 28 * $DragonFly: src/sys/dev/raid/ips/ips_commands.c,v 1.5 2004/07/09 16:15:27 dillon Exp $ 29 */ 30 31 #include <sys/cdefs.h> 32 33 #include <dev/raid/ips/ips.h> 34 35 static int 36 ips_msleep(void *ident, struct ips_softc *sc, int priority, const char *wmesg, 37 int timo) 38 { 39 int r; 40 41 IPS_UNLOCK(sc); 42 r = tsleep(ident, priority, wmesg, timo); 43 IPS_LOCK(sc); 44 return r; 45 } 46 47 /* 48 * This is an interrupt callback. It is called from 49 * interrupt context when the adapter has completed the 50 * command. This very generic callback simply stores 51 * the command's return value in command->arg and wake's 52 * up anyone waiting on the command. 53 */ 54 static void 55 ips_wakeup_callback(ips_command_t *command) 56 { 57 ips_cmd_status_t *status; 58 59 status = command->arg; 60 status->value = command->status.value; 61 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap, 62 BUS_DMASYNC_POSTWRITE); 63 IPS_LOCK(command->sc); 64 wakeup(status); 65 IPS_UNLOCK(command->sc); 66 } 67 /* Below are a series of functions for sending an IO request 68 * to the adapter. The flow order is: start, send, callback, finish. 69 * The caller must have already assembled an iorequest struct to hold 70 * the details of the IO request. */ 71 static void ips_io_request_finish(ips_command_t *command) 72 { 73 struct bio *iobuf = command->arg; 74 75 if (ips_read_request(iobuf)) { 76 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 77 BUS_DMASYNC_POSTREAD); 78 } else { 79 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 80 BUS_DMASYNC_POSTWRITE); 81 } 82 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 83 bus_dmamap_destroy(command->data_dmatag, command->data_dmamap); 84 if (COMMAND_ERROR(&command->status)) { 85 iobuf->bio_flags |=BIO_ERROR; 86 iobuf->bio_error = EIO; 87 } 88 ips_insert_free_cmd(command->sc, command); 89 ipsd_finish(iobuf); 90 } 91 92 static void 93 ips_io_request_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 94 int error) 95 { 96 ips_softc_t *sc; 97 ips_command_t *command = cmdptr; 98 ips_sg_element_t *sg_list; 99 ips_io_cmd *command_struct; 100 struct bio *iobuf = command->arg; 101 int i, length = 0; 102 u_int8_t cmdtype; 103 104 sc = command->sc; 105 if (error) { 106 printf("ips: error = %d in ips_sg_request_callback\n", error); 107 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 108 bus_dmamap_destroy(command->data_dmatag, command->data_dmamap); 109 iobuf->bio_flags |= BIO_ERROR; 110 iobuf->bio_error = ENOMEM; 111 ips_insert_free_cmd(sc, command); 112 ipsd_finish(iobuf); 113 return; 114 } 115 command_struct = (ips_io_cmd *)command->command_buffer; 116 command_struct->id = command->id; 117 command_struct->drivenum = (uintptr_t)iobuf->bio_driver1; 118 if (segnum != 1) { 119 if (ips_read_request(iobuf)) 120 cmdtype = IPS_SG_READ_CMD; 121 else 122 cmdtype = IPS_SG_WRITE_CMD; 123 command_struct->segnum = segnum; 124 sg_list = (ips_sg_element_t *)((u_int8_t *) 125 command->command_buffer + IPS_COMMAND_LEN); 126 for (i = 0; i < segnum; i++) { 127 sg_list[i].addr = segments[i].ds_addr; 128 sg_list[i].len = segments[i].ds_len; 129 length += segments[i].ds_len; 130 } 131 command_struct->buffaddr = 132 (u_int32_t)command->command_phys_addr + IPS_COMMAND_LEN; 133 } else { 134 if (ips_read_request(iobuf)) 135 cmdtype = IPS_READ_CMD; 136 else 137 cmdtype = IPS_WRITE_CMD; 138 command_struct->buffaddr = segments[0].ds_addr; 139 length = segments[0].ds_len; 140 } 141 command_struct->command = cmdtype; 142 command_struct->lba = iobuf->bio_pblkno; 143 length = (length + IPS_BLKSIZE - 1)/IPS_BLKSIZE; 144 command_struct->length = length; 145 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 146 BUS_DMASYNC_PREWRITE); 147 if (ips_read_request(iobuf)) { 148 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 149 BUS_DMASYNC_PREREAD); 150 } else { 151 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 152 BUS_DMASYNC_PREWRITE); 153 } 154 /* 155 * the cast to long long below is necessary because our b_pblkno 156 * is 32bit wide whereas it's 64bit on FreeBSD-CURRENT. 157 */ 158 PRINTF(10, "ips test: command id: %d segments: %d " 159 "pblkno: %lld length: %d, ds_len: %d\n", command->id, segnum, 160 (long long)iobuf->bio_pblkno, 161 length, segments[0].ds_len); 162 163 sc->ips_issue_cmd(command); 164 return; 165 } 166 167 static int 168 ips_send_io_request(ips_command_t *command) 169 { 170 ips_softc_t *sc = command->sc; 171 struct bio *iobuf = command->arg; 172 command->data_dmatag = sc->sg_dmatag; 173 174 if (bus_dmamap_create(command->data_dmatag, 0, &command->data_dmamap)) { 175 device_printf(sc->dev, "dmamap failed\n"); 176 iobuf->bio_flags |= BIO_ERROR; 177 iobuf->bio_error = ENOMEM; 178 ips_insert_free_cmd(sc, command); 179 ipsd_finish(iobuf); 180 return 0; 181 } 182 command->callback = ips_io_request_finish; 183 PRINTF(10, "ips test: : bcount %ld\n", iobuf->bio_bcount); 184 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 185 iobuf->bio_data, iobuf->bio_bcount, 186 ips_io_request_callback, command, 0); 187 return 0; 188 } 189 190 void 191 ips_start_io_request(ips_softc_t *sc, struct bio *iobuf) 192 { 193 if (ips_get_free_cmd(sc, ips_send_io_request, iobuf, 0)) { 194 device_printf(sc->dev, "no mem for command slots!\n"); 195 iobuf->bio_flags |= BIO_ERROR; 196 iobuf->bio_error = ENOMEM; 197 ipsd_finish(iobuf); 198 return; 199 } 200 return; 201 } 202 203 /* 204 * Below are a series of functions for sending an adapter info request 205 * to the adapter. The flow order is: get, send, callback. It uses 206 * the generic finish callback at the top of this file. 207 * This can be used to get configuration/status info from the card 208 */ 209 static void 210 ips_adapter_info_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, 211 int error) 212 { 213 ips_softc_t *sc; 214 ips_command_t *command = cmdptr; 215 ips_adapter_info_cmd *command_struct; 216 sc = command->sc; 217 if (error) { 218 ips_cmd_status_t * status = command->arg; 219 status->value = IPS_ERROR_STATUS; /* a lovely error value */ 220 ips_insert_free_cmd(sc, command); 221 printf("ips: error = %d in ips_get_adapter_info\n", error); 222 return; 223 } 224 command_struct = (ips_adapter_info_cmd *)command->command_buffer; 225 command_struct->command = IPS_ADAPTER_INFO_CMD; 226 command_struct->id = command->id; 227 command_struct->buffaddr = segments[0].ds_addr; 228 229 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 230 BUS_DMASYNC_PREWRITE); 231 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 232 BUS_DMASYNC_PREREAD); 233 sc->ips_issue_cmd(command); 234 } 235 236 static int 237 ips_send_adapter_info_cmd(ips_command_t *command) 238 { 239 ips_softc_t *sc = command->sc; 240 ips_cmd_status_t *status = command->arg; 241 int error = 0; 242 243 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 244 /* alignemnt */ 1, 245 /* boundary */ 0, 246 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 247 /* highaddr */ BUS_SPACE_MAXADDR, 248 /* filter */ NULL, 249 /* filterarg */ NULL, 250 /* maxsize */ IPS_ADAPTER_INFO_LEN, 251 /* numsegs */ 1, 252 /* maxsegsize*/ IPS_ADAPTER_INFO_LEN, 253 /* flags */ 0, 254 &command->data_dmatag) != 0) { 255 printf("ips: can't alloc dma tag for adapter status\n"); 256 error = ENOMEM; 257 goto exit; 258 } 259 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 260 BUS_DMA_NOWAIT, &command->data_dmamap)) { 261 error = ENOMEM; 262 goto exit; 263 } 264 command->callback = ips_wakeup_callback; 265 IPS_LOCK(sc); 266 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 267 command->data_buffer, IPS_ADAPTER_INFO_LEN, 268 ips_adapter_info_callback, command, BUS_DMA_NOWAIT); 269 if ((status->value == IPS_ERROR_STATUS) || 270 ips_msleep(status, sc, 0, "ips", 30 * hz) == EWOULDBLOCK) 271 error = ETIMEDOUT; 272 IPS_UNLOCK(sc); 273 if (error == 0) { 274 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 275 BUS_DMASYNC_POSTREAD); 276 memcpy(&(sc->adapter_info), command->data_buffer, 277 IPS_ADAPTER_INFO_LEN); 278 } 279 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 280 exit: 281 /* I suppose I should clean up my memory allocations */ 282 bus_dmamem_free(command->data_dmatag, command->data_buffer, 283 command->data_dmamap); 284 bus_dma_tag_destroy(command->data_dmatag); 285 ips_insert_free_cmd(sc, command); 286 return error; 287 } 288 289 int 290 ips_get_adapter_info(ips_softc_t *sc) 291 { 292 int error = 0; 293 ips_cmd_status_t *status; 294 295 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 296 if (ips_get_free_cmd(sc, ips_send_adapter_info_cmd, status, 297 IPS_NOWAIT_FLAG) > 0) { 298 device_printf(sc->dev, "unable to get adapter configuration\n"); 299 free(status, M_DEVBUF); 300 return ENXIO; 301 } 302 if (COMMAND_ERROR(status)) 303 error = ENXIO; 304 free(status, M_DEVBUF); 305 return error; 306 } 307 308 /* 309 * Below are a series of functions for sending a drive info request 310 * to the adapter. The flow order is: get, send, callback. It uses 311 * the generic finish callback at the top of this file. 312 * This can be used to get drive status info from the card 313 */ 314 static void 315 ips_drive_info_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 316 int error) 317 { 318 ips_softc_t *sc; 319 ips_command_t *command = cmdptr; 320 ips_drive_cmd *command_struct; 321 322 sc = command->sc; 323 if (error) { 324 ips_cmd_status_t *status = command->arg; 325 326 status->value = IPS_ERROR_STATUS; 327 ips_insert_free_cmd(sc, command); 328 printf("ips: error = %d in ips_get_drive_info\n", error); 329 return; 330 } 331 command_struct = (ips_drive_cmd *)command->command_buffer; 332 command_struct->command = IPS_DRIVE_INFO_CMD; 333 command_struct->id = command->id; 334 command_struct->buffaddr = segments[0].ds_addr; 335 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 336 BUS_DMASYNC_PREWRITE); 337 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 338 BUS_DMASYNC_PREREAD); 339 sc->ips_issue_cmd(command); 340 } 341 342 static int 343 ips_send_drive_info_cmd(ips_command_t *command) 344 { 345 int error = 0; 346 ips_softc_t *sc = command->sc; 347 ips_cmd_status_t *status = command->arg; 348 ips_drive_info_t *driveinfo; 349 350 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 351 /* alignemnt */ 1, 352 /* boundary */ 0, 353 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 354 /* highaddr */ BUS_SPACE_MAXADDR, 355 /* filter */ NULL, 356 /* filterarg */ NULL, 357 /* maxsize */ IPS_DRIVE_INFO_LEN, 358 /* numsegs */ 1, 359 /* maxsegsize*/ IPS_DRIVE_INFO_LEN, 360 /* flags */ 0, 361 &command->data_dmatag) != 0) { 362 printf("ips: can't alloc dma tag for drive status\n"); 363 error = ENOMEM; 364 goto exit; 365 } 366 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 367 BUS_DMA_NOWAIT, &command->data_dmamap)) { 368 error = ENOMEM; 369 goto exit; 370 } 371 command->callback = ips_wakeup_callback; 372 IPS_LOCK(sc); 373 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 374 command->data_buffer,IPS_DRIVE_INFO_LEN, 375 ips_drive_info_callback, command, BUS_DMA_NOWAIT); 376 if ((status->value == IPS_ERROR_STATUS) || 377 ips_msleep(status, sc, 0, "ips", 10 * hz) == EWOULDBLOCK) 378 error = ETIMEDOUT; 379 IPS_UNLOCK(sc); 380 381 if (error == 0) { 382 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 383 BUS_DMASYNC_POSTREAD); 384 driveinfo = command->data_buffer; 385 memcpy(sc->drives, driveinfo->drives, sizeof(ips_drive_t) * 8); 386 sc->drivecount = driveinfo->drivecount; 387 device_printf(sc->dev, "logical drives: %d\n", sc->drivecount); 388 } 389 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 390 exit: 391 /* I suppose I should clean up my memory allocations */ 392 bus_dmamem_free(command->data_dmatag, command->data_buffer, 393 command->data_dmamap); 394 bus_dma_tag_destroy(command->data_dmatag); 395 ips_insert_free_cmd(sc, command); 396 return error; 397 398 } 399 int 400 ips_get_drive_info(ips_softc_t *sc) 401 { 402 int error = 0; 403 ips_cmd_status_t *status; 404 405 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 406 if (ips_get_free_cmd(sc, ips_send_drive_info_cmd, status, 407 IPS_NOWAIT_FLAG) > 0) { 408 free(status, M_DEVBUF); 409 device_printf(sc->dev, "unable to get drive configuration\n"); 410 return ENXIO; 411 } 412 if (COMMAND_ERROR(status)) 413 error = ENXIO; 414 free(status, M_DEVBUF); 415 return error; 416 } 417 418 /* 419 * Below is a pair of functions for making sure data is safely 420 * on disk by flushing the adapter's cache. 421 */ 422 static int 423 ips_send_flush_cache_cmd(ips_command_t *command) 424 { 425 ips_softc_t *sc = command->sc; 426 ips_cmd_status_t *status = command->arg; 427 ips_generic_cmd *command_struct; 428 429 PRINTF(10,"ips test: got a command, building flush command\n"); 430 command->callback = ips_wakeup_callback; 431 command_struct = (ips_generic_cmd *)command->command_buffer; 432 command_struct->command = IPS_CACHE_FLUSH_CMD; 433 command_struct->id = command->id; 434 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 435 BUS_DMASYNC_PREWRITE); 436 IPS_LOCK(sc); 437 sc->ips_issue_cmd(command); 438 if (status->value != IPS_ERROR_STATUS) 439 ips_msleep(status, sc, 0, "flush2", 0); 440 IPS_UNLOCK(sc); 441 ips_insert_free_cmd(sc, command); 442 return 0; 443 } 444 445 int 446 ips_flush_cache(ips_softc_t *sc) 447 { 448 ips_cmd_status_t *status; 449 450 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 451 device_printf(sc->dev, "flushing cache\n"); 452 if (ips_get_free_cmd(sc, ips_send_flush_cache_cmd, status, 453 IPS_NOWAIT_FLAG)) { 454 free(status, M_DEVBUF); 455 device_printf(sc->dev, "ERROR: unable to get a command! " 456 "can't flush cache!\n"); 457 return 1; 458 } 459 if (COMMAND_ERROR(status)) { 460 free(status, M_DEVBUF); 461 device_printf(sc->dev, "ERROR: cache flush command failed!\n"); 462 return 1; 463 } 464 free(status, M_DEVBUF); 465 return 0; 466 } 467 468 /* 469 * Simplified localtime to provide timevalues for ffdc. 470 * Taken from libc/stdtime/localtime.c 471 */ 472 static void 473 ips_ffdc_settime(ips_adapter_ffdc_cmd *command, time_t sctime) 474 { 475 long days, rem, y; 476 int yleap, *ip, month; 477 int year_lengths[2] = { IPS_DAYSPERNYEAR, IPS_DAYSPERLYEAR }; 478 int mon_lengths[2][IPS_MONSPERYEAR] = { 479 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 480 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 481 }; 482 483 days = sctime / IPS_SECSPERDAY; 484 rem = sctime % IPS_SECSPERDAY; 485 486 command->hour = rem / IPS_SECSPERHOUR; 487 rem = rem % IPS_SECSPERHOUR; 488 489 command->minute = rem / IPS_SECSPERMIN; 490 command->second = rem % IPS_SECSPERMIN; 491 492 y = IPS_EPOCH_YEAR; 493 while (days < 0 || days >= (long)year_lengths[yleap = ips_isleap(y)]) { 494 long newy; 495 496 newy = y + days / IPS_DAYSPERNYEAR; 497 if (days < 0) 498 --newy; 499 days -= (newy - y) * IPS_DAYSPERNYEAR + 500 IPS_LEAPS_THRU_END_OF(newy - 1) - 501 IPS_LEAPS_THRU_END_OF(y - 1); 502 y = newy; 503 } 504 command->yearH = y / 100; 505 command->yearL = y % 100; 506 ip = mon_lengths[yleap]; 507 for (month = 0; days >= (long)ip[month]; ++month) 508 days = days - (long)ip[month]; 509 command->month = month + 1; 510 command->day = days + 1; 511 } 512 513 static int 514 ips_send_ffdc_reset_cmd(ips_command_t *command) 515 { 516 ips_softc_t *sc = command->sc; 517 ips_cmd_status_t *status = command->arg; 518 ips_adapter_ffdc_cmd *command_struct; 519 520 PRINTF(10, "ips test: got a command, building ffdc reset command\n"); 521 command->callback = ips_wakeup_callback; 522 command_struct = (ips_adapter_ffdc_cmd *)command->command_buffer; 523 command_struct->command = IPS_FFDC_CMD; 524 command_struct->id = command->id; 525 command_struct->reset_count = sc->ffdc_resetcount; 526 command_struct->reset_type = 0x0; 527 ips_ffdc_settime(command_struct, sc->ffdc_resettime.tv_sec); 528 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 529 BUS_DMASYNC_PREWRITE); 530 IPS_LOCK(sc); 531 sc->ips_issue_cmd(command); 532 if (status->value != IPS_ERROR_STATUS) 533 ips_msleep(status, sc, 0, "ffdc", 0); 534 IPS_UNLOCK(sc); 535 ips_insert_free_cmd(sc, command); 536 return 0; 537 } 538 539 int 540 ips_ffdc_reset(ips_softc_t *sc) 541 { 542 ips_cmd_status_t *status; 543 544 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 545 if (ips_get_free_cmd(sc, ips_send_ffdc_reset_cmd, status, 546 IPS_NOWAIT_FLAG)) { 547 free(status, M_DEVBUF); 548 device_printf(sc->dev, "ERROR: unable to get a command! " 549 "can't send ffdc reset!\n"); 550 return 1; 551 } 552 if (COMMAND_ERROR(status)) { 553 free(status, M_DEVBUF); 554 device_printf(sc->dev, "ERROR: ffdc reset command failed!\n"); 555 return 1; 556 } 557 free(status, M_DEVBUF); 558 return 0; 559 } 560 561 static void 562 ips_write_nvram(ips_command_t *command) 563 { 564 ips_softc_t *sc = command->sc; 565 ips_rw_nvram_cmd *command_struct; 566 ips_nvram_page5 *nvram; 567 568 /*FIXME check for error */ 569 command->callback = ips_wakeup_callback; 570 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 571 command_struct->command = IPS_RW_NVRAM_CMD; 572 command_struct->id = command->id; 573 command_struct->pagenum = 5; 574 command_struct->rw = 1; /* write */ 575 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 576 BUS_DMASYNC_POSTREAD); 577 nvram = command->data_buffer; 578 /* retrieve adapter info and save in sc */ 579 sc->adapter_type = nvram->adapter_type; 580 strncpy(nvram->driver_high, IPS_VERSION_MAJOR, 4); 581 strncpy(nvram->driver_low, IPS_VERSION_MINOR, 4); 582 nvram->operating_system = IPS_OS_FREEBSD; 583 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 584 BUS_DMASYNC_PREWRITE); 585 sc->ips_issue_cmd(command); 586 } 587 588 static void 589 ips_read_nvram_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 590 int error) 591 { 592 ips_softc_t *sc; 593 ips_command_t *command = cmdptr; 594 ips_rw_nvram_cmd *command_struct; 595 596 sc = command->sc; 597 if (error) { 598 ips_cmd_status_t *status = command->arg; 599 600 status->value = IPS_ERROR_STATUS; 601 ips_insert_free_cmd(sc, command); 602 printf("ips: error = %d in ips_read_nvram_callback\n", error); 603 return; 604 } 605 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 606 command_struct->command = IPS_RW_NVRAM_CMD; 607 command_struct->id = command->id; 608 command_struct->pagenum = 5; 609 command_struct->rw = 0; 610 command_struct->buffaddr = segments[0].ds_addr; 611 612 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 613 BUS_DMASYNC_PREWRITE); 614 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 615 BUS_DMASYNC_PREREAD); 616 sc->ips_issue_cmd(command); 617 } 618 619 static int 620 ips_read_nvram(ips_command_t *command) 621 { 622 int error = 0; 623 ips_softc_t *sc = command->sc; 624 ips_cmd_status_t *status = command->arg; 625 626 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 627 /* alignemnt */ 1, 628 /* boundary */ 0, 629 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 630 /* highaddr */ BUS_SPACE_MAXADDR, 631 /* filter */ NULL, 632 /* filterarg */ NULL, 633 /* maxsize */ IPS_NVRAM_PAGE_SIZE, 634 /* numsegs */ 1, 635 /* maxsegsize*/ IPS_NVRAM_PAGE_SIZE, 636 /* flags */ 0, 637 &command->data_dmatag) != 0) { 638 printf("ips: can't alloc dma tag for nvram\n"); 639 error = ENOMEM; 640 goto exit; 641 } 642 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 643 BUS_DMA_NOWAIT, &command->data_dmamap)) { 644 error = ENOMEM; 645 goto exit; 646 } 647 command->callback = ips_write_nvram; 648 IPS_LOCK(sc); 649 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 650 command->data_buffer, IPS_NVRAM_PAGE_SIZE, ips_read_nvram_callback, 651 command, BUS_DMA_NOWAIT); 652 if ((status->value == IPS_ERROR_STATUS) || 653 ips_msleep(status, sc, 0, "ips", 0) == EWOULDBLOCK) 654 error = ETIMEDOUT; 655 IPS_UNLOCK(sc); 656 if (error == 0) { 657 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 658 BUS_DMASYNC_POSTWRITE); 659 } 660 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 661 exit: 662 bus_dmamem_free(command->data_dmatag, command->data_buffer, 663 command->data_dmamap); 664 bus_dma_tag_destroy(command->data_dmatag); 665 ips_insert_free_cmd(sc, command); 666 return error; 667 } 668 669 int 670 ips_update_nvram(ips_softc_t *sc) 671 { 672 ips_cmd_status_t *status; 673 674 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 675 if (ips_get_free_cmd(sc, ips_read_nvram, status, IPS_NOWAIT_FLAG)) { 676 free(status, M_DEVBUF); 677 device_printf(sc->dev, "ERROR: unable to get a command! " 678 "can't update nvram\n"); 679 return 1; 680 } 681 if (COMMAND_ERROR(status)) { 682 free(status, M_DEVBUF); 683 device_printf(sc->dev, "ERROR: nvram update command failed!\n"); 684 return 1; 685 } 686 free(status, M_DEVBUF); 687 return 0; 688 } 689 690 static int 691 ips_send_config_sync_cmd(ips_command_t *command) 692 { 693 ips_softc_t *sc = command->sc; 694 ips_cmd_status_t *status = command->arg; 695 ips_generic_cmd *command_struct; 696 697 PRINTF(10, "ips test: got a command, building flush command\n"); 698 command->callback = ips_wakeup_callback; 699 command_struct = (ips_generic_cmd *)command->command_buffer; 700 command_struct->command = IPS_CONFIG_SYNC_CMD; 701 command_struct->id = command->id; 702 command_struct->reserve2 = IPS_POCL; 703 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 704 BUS_DMASYNC_PREWRITE); 705 IPS_LOCK(sc); 706 sc->ips_issue_cmd(command); 707 if (status->value != IPS_ERROR_STATUS) 708 ips_msleep(status, sc, 0, "ipssyn", 0); 709 IPS_UNLOCK(sc); 710 ips_insert_free_cmd(sc, command); 711 return 0; 712 } 713 714 static int 715 ips_send_error_table_cmd(ips_command_t *command) 716 { 717 ips_softc_t *sc = command->sc; 718 ips_cmd_status_t *status = command->arg; 719 ips_generic_cmd *command_struct; 720 721 PRINTF(10, "ips test: got a command, building errortable command\n"); 722 command->callback = ips_wakeup_callback; 723 command_struct = (ips_generic_cmd *)command->command_buffer; 724 command_struct->command = IPS_ERROR_TABLE_CMD; 725 command_struct->id = command->id; 726 command_struct->reserve2 = IPS_CSL; 727 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 728 BUS_DMASYNC_PREWRITE); 729 IPS_LOCK(sc); 730 sc->ips_issue_cmd(command); 731 if (status->value != IPS_ERROR_STATUS) 732 ips_msleep(status, sc, 0, "ipsetc", 0); 733 IPS_UNLOCK(sc); 734 ips_insert_free_cmd(sc, command); 735 return 0; 736 } 737 738 int 739 ips_clear_adapter(ips_softc_t *sc) 740 { 741 ips_cmd_status_t *status; 742 743 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_INTWAIT | M_ZERO); 744 device_printf(sc->dev, "syncing config\n"); 745 if (ips_get_free_cmd(sc, ips_send_config_sync_cmd, status, 746 IPS_NOWAIT_FLAG)) { 747 free(status, M_DEVBUF); 748 device_printf(sc->dev, "ERROR: unable to get a command! " 749 "can't sync cache!\n"); 750 return 1; 751 } 752 if (COMMAND_ERROR(status)) { 753 free(status, M_DEVBUF); 754 device_printf(sc->dev, "ERROR: cache sync command failed!\n"); 755 return 1; 756 } 757 device_printf(sc->dev, "clearing error table\n"); 758 if (ips_get_free_cmd(sc, ips_send_error_table_cmd, status, 759 IPS_NOWAIT_FLAG)) { 760 free(status, M_DEVBUF); 761 device_printf(sc->dev, "ERROR: unable to get a command! " 762 "can't sync cache!\n"); 763 return 1; 764 } 765 if (COMMAND_ERROR(status)) { 766 device_printf(sc->dev, "ERROR: etable command failed!\n"); 767 free(status, M_DEVBUF); 768 return 1; 769 } 770 free(status, M_DEVBUF); 771 return 0; 772 } 773