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 1.1 2004/01/15 15:41:23 drhodus 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_NOWAIT | M_ZERO); 296 if (status == NULL) 297 return ENOMEM; 298 if (ips_get_free_cmd(sc, ips_send_adapter_info_cmd, status, 299 IPS_NOWAIT_FLAG) > 0) { 300 device_printf(sc->dev, "unable to get adapter configuration\n"); 301 free(status, M_DEVBUF); 302 return ENXIO; 303 } 304 if (COMMAND_ERROR(status)) 305 error = ENXIO; 306 free(status, M_DEVBUF); 307 return error; 308 } 309 310 /* 311 * Below are a series of functions for sending a drive info request 312 * to the adapter. The flow order is: get, send, callback. It uses 313 * the generic finish callback at the top of this file. 314 * This can be used to get drive status info from the card 315 */ 316 static void 317 ips_drive_info_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 318 int error) 319 { 320 ips_softc_t *sc; 321 ips_command_t *command = cmdptr; 322 ips_drive_cmd *command_struct; 323 324 sc = command->sc; 325 if (error) { 326 ips_cmd_status_t *status = command->arg; 327 328 status->value = IPS_ERROR_STATUS; 329 ips_insert_free_cmd(sc, command); 330 printf("ips: error = %d in ips_get_drive_info\n", error); 331 return; 332 } 333 command_struct = (ips_drive_cmd *)command->command_buffer; 334 command_struct->command = IPS_DRIVE_INFO_CMD; 335 command_struct->id = command->id; 336 command_struct->buffaddr = segments[0].ds_addr; 337 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 338 BUS_DMASYNC_PREWRITE); 339 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 340 BUS_DMASYNC_PREREAD); 341 sc->ips_issue_cmd(command); 342 } 343 344 static int 345 ips_send_drive_info_cmd(ips_command_t *command) 346 { 347 int error = 0; 348 ips_softc_t *sc = command->sc; 349 ips_cmd_status_t *status = command->arg; 350 ips_drive_info_t *driveinfo; 351 352 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 353 /* alignemnt */ 1, 354 /* boundary */ 0, 355 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 356 /* highaddr */ BUS_SPACE_MAXADDR, 357 /* filter */ NULL, 358 /* filterarg */ NULL, 359 /* maxsize */ IPS_DRIVE_INFO_LEN, 360 /* numsegs */ 1, 361 /* maxsegsize*/ IPS_DRIVE_INFO_LEN, 362 /* flags */ 0, 363 &command->data_dmatag) != 0) { 364 printf("ips: can't alloc dma tag for drive status\n"); 365 error = ENOMEM; 366 goto exit; 367 } 368 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 369 BUS_DMA_NOWAIT, &command->data_dmamap)) { 370 error = ENOMEM; 371 goto exit; 372 } 373 command->callback = ips_wakeup_callback; 374 IPS_LOCK(sc); 375 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 376 command->data_buffer,IPS_DRIVE_INFO_LEN, 377 ips_drive_info_callback, command, BUS_DMA_NOWAIT); 378 if ((status->value == IPS_ERROR_STATUS) || 379 ips_msleep(status, sc, 0, "ips", 10 * hz) == EWOULDBLOCK) 380 error = ETIMEDOUT; 381 IPS_UNLOCK(sc); 382 383 if (error == 0) { 384 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 385 BUS_DMASYNC_POSTREAD); 386 driveinfo = command->data_buffer; 387 memcpy(sc->drives, driveinfo->drives, sizeof(ips_drive_t) * 8); 388 sc->drivecount = driveinfo->drivecount; 389 device_printf(sc->dev, "logical drives: %d\n", sc->drivecount); 390 } 391 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 392 exit: 393 /* I suppose I should clean up my memory allocations */ 394 bus_dmamem_free(command->data_dmatag, command->data_buffer, 395 command->data_dmamap); 396 bus_dma_tag_destroy(command->data_dmatag); 397 ips_insert_free_cmd(sc, command); 398 return error; 399 400 } 401 int 402 ips_get_drive_info(ips_softc_t *sc) 403 { 404 int error = 0; 405 ips_cmd_status_t *status; 406 407 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_NOWAIT | M_ZERO); 408 if (status == NULL) 409 return ENOMEM; 410 if (ips_get_free_cmd(sc, ips_send_drive_info_cmd, status, 411 IPS_NOWAIT_FLAG) > 0) { 412 free(status, M_DEVBUF); 413 device_printf(sc->dev, "unable to get drive configuration\n"); 414 return ENXIO; 415 } 416 if (COMMAND_ERROR(status)) 417 error = ENXIO; 418 free(status, M_DEVBUF); 419 return error; 420 } 421 422 /* 423 * Below is a pair of functions for making sure data is safely 424 * on disk by flushing the adapter's cache. 425 */ 426 static int 427 ips_send_flush_cache_cmd(ips_command_t *command) 428 { 429 ips_softc_t *sc = command->sc; 430 ips_cmd_status_t *status = command->arg; 431 ips_generic_cmd *command_struct; 432 433 PRINTF(10,"ips test: got a command, building flush command\n"); 434 command->callback = ips_wakeup_callback; 435 command_struct = (ips_generic_cmd *)command->command_buffer; 436 command_struct->command = IPS_CACHE_FLUSH_CMD; 437 command_struct->id = command->id; 438 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 439 BUS_DMASYNC_PREWRITE); 440 IPS_LOCK(sc); 441 sc->ips_issue_cmd(command); 442 if (status->value != IPS_ERROR_STATUS) 443 ips_msleep(status, sc, 0, "flush2", 0); 444 IPS_UNLOCK(sc); 445 ips_insert_free_cmd(sc, command); 446 return 0; 447 } 448 449 int 450 ips_flush_cache(ips_softc_t *sc) 451 { 452 ips_cmd_status_t *status; 453 454 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_NOWAIT | M_ZERO); 455 if (status == NULL) 456 return ENOMEM; 457 device_printf(sc->dev, "flushing cache\n"); 458 if (ips_get_free_cmd(sc, ips_send_flush_cache_cmd, status, 459 IPS_NOWAIT_FLAG)) { 460 free(status, M_DEVBUF); 461 device_printf(sc->dev, "ERROR: unable to get a command! " 462 "can't flush cache!\n"); 463 } 464 if (COMMAND_ERROR(status)) { 465 device_printf(sc->dev, "ERROR: cache flush command failed!\n"); 466 } 467 free(status, M_DEVBUF); 468 return 0; 469 } 470 471 /* 472 * Simplified localtime to provide timevalues for ffdc. 473 * Taken from libc/stdtime/localtime.c 474 */ 475 static void 476 ips_ffdc_settime(ips_adapter_ffdc_cmd *command, time_t sctime) 477 { 478 long days, rem, y; 479 int yleap, *ip, month; 480 int year_lengths[2] = { IPS_DAYSPERNYEAR, IPS_DAYSPERLYEAR }; 481 int mon_lengths[2][IPS_MONSPERYEAR] = { 482 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 483 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 484 }; 485 486 days = sctime / IPS_SECSPERDAY; 487 rem = sctime % IPS_SECSPERDAY; 488 489 command->hour = rem / IPS_SECSPERHOUR; 490 rem = rem % IPS_SECSPERHOUR; 491 492 command->minute = rem / IPS_SECSPERMIN; 493 command->second = rem % IPS_SECSPERMIN; 494 495 y = IPS_EPOCH_YEAR; 496 while (days < 0 || days >= (long)year_lengths[yleap = ips_isleap(y)]) { 497 long newy; 498 499 newy = y + days / IPS_DAYSPERNYEAR; 500 if (days < 0) 501 --newy; 502 days -= (newy - y) * IPS_DAYSPERNYEAR + 503 IPS_LEAPS_THRU_END_OF(newy - 1) - 504 IPS_LEAPS_THRU_END_OF(y - 1); 505 y = newy; 506 } 507 command->yearH = y / 100; 508 command->yearL = y % 100; 509 ip = mon_lengths[yleap]; 510 for (month = 0; days >= (long)ip[month]; ++month) 511 days = days - (long)ip[month]; 512 command->month = month + 1; 513 command->day = days + 1; 514 } 515 516 static int 517 ips_send_ffdc_reset_cmd(ips_command_t *command) 518 { 519 ips_softc_t *sc = command->sc; 520 ips_cmd_status_t *status = command->arg; 521 ips_adapter_ffdc_cmd *command_struct; 522 523 PRINTF(10, "ips test: got a command, building ffdc reset command\n"); 524 command->callback = ips_wakeup_callback; 525 command_struct = (ips_adapter_ffdc_cmd *)command->command_buffer; 526 command_struct->command = IPS_FFDC_CMD; 527 command_struct->id = command->id; 528 command_struct->reset_count = sc->ffdc_resetcount; 529 command_struct->reset_type = 0x0; 530 ips_ffdc_settime(command_struct, sc->ffdc_resettime.tv_sec); 531 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 532 BUS_DMASYNC_PREWRITE); 533 IPS_LOCK(sc); 534 sc->ips_issue_cmd(command); 535 if (status->value != IPS_ERROR_STATUS) 536 ips_msleep(status, sc, 0, "ffdc", 0); 537 IPS_UNLOCK(sc); 538 ips_insert_free_cmd(sc, command); 539 return 0; 540 } 541 542 int 543 ips_ffdc_reset(ips_softc_t *sc) 544 { 545 ips_cmd_status_t *status; 546 547 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_NOWAIT | M_ZERO); 548 if (status == NULL) 549 return ENOMEM; 550 if (ips_get_free_cmd(sc, ips_send_ffdc_reset_cmd, status, 551 IPS_NOWAIT_FLAG)) { 552 free(status, M_DEVBUF); 553 device_printf(sc->dev, "ERROR: unable to get a command! " 554 "can't send ffdc reset!\n"); 555 } 556 if (COMMAND_ERROR(status)) 557 device_printf(sc->dev, "ERROR: ffdc reset command failed!\n"); 558 free(status, M_DEVBUF); 559 return 0; 560 } 561 562 static void 563 ips_write_nvram(ips_command_t *command) 564 { 565 ips_softc_t *sc = command->sc; 566 ips_rw_nvram_cmd *command_struct; 567 ips_nvram_page5 *nvram; 568 569 /*FIXME check for error */ 570 command->callback = ips_wakeup_callback; 571 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 572 command_struct->command = IPS_RW_NVRAM_CMD; 573 command_struct->id = command->id; 574 command_struct->pagenum = 5; 575 command_struct->rw = 1; /* write */ 576 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 577 BUS_DMASYNC_POSTREAD); 578 nvram = command->data_buffer; 579 /* retrieve adapter info and save in sc */ 580 sc->adapter_type = nvram->adapter_type; 581 strncpy(nvram->driver_high, IPS_VERSION_MAJOR, 4); 582 strncpy(nvram->driver_low, IPS_VERSION_MINOR, 4); 583 nvram->operating_system = IPS_OS_FREEBSD; 584 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 585 BUS_DMASYNC_PREWRITE); 586 sc->ips_issue_cmd(command); 587 } 588 589 static void 590 ips_read_nvram_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 591 int error) 592 { 593 ips_softc_t *sc; 594 ips_command_t *command = cmdptr; 595 ips_rw_nvram_cmd *command_struct; 596 597 sc = command->sc; 598 if (error) { 599 ips_cmd_status_t *status = command->arg; 600 601 status->value = IPS_ERROR_STATUS; 602 ips_insert_free_cmd(sc, command); 603 printf("ips: error = %d in ips_read_nvram_callback\n", error); 604 return; 605 } 606 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 607 command_struct->command = IPS_RW_NVRAM_CMD; 608 command_struct->id = command->id; 609 command_struct->pagenum = 5; 610 command_struct->rw = 0; 611 command_struct->buffaddr = segments[0].ds_addr; 612 613 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 614 BUS_DMASYNC_PREWRITE); 615 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 616 BUS_DMASYNC_PREREAD); 617 sc->ips_issue_cmd(command); 618 } 619 620 static int 621 ips_read_nvram(ips_command_t *command) 622 { 623 int error = 0; 624 ips_softc_t *sc = command->sc; 625 ips_cmd_status_t *status = command->arg; 626 627 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 628 /* alignemnt */ 1, 629 /* boundary */ 0, 630 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 631 /* highaddr */ BUS_SPACE_MAXADDR, 632 /* filter */ NULL, 633 /* filterarg */ NULL, 634 /* maxsize */ IPS_NVRAM_PAGE_SIZE, 635 /* numsegs */ 1, 636 /* maxsegsize*/ IPS_NVRAM_PAGE_SIZE, 637 /* flags */ 0, 638 &command->data_dmatag) != 0) { 639 printf("ips: can't alloc dma tag for nvram\n"); 640 error = ENOMEM; 641 goto exit; 642 } 643 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 644 BUS_DMA_NOWAIT, &command->data_dmamap)) { 645 error = ENOMEM; 646 goto exit; 647 } 648 command->callback = ips_write_nvram; 649 IPS_LOCK(sc); 650 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 651 command->data_buffer, IPS_NVRAM_PAGE_SIZE, ips_read_nvram_callback, 652 command, BUS_DMA_NOWAIT); 653 if ((status->value == IPS_ERROR_STATUS) || 654 ips_msleep(status, sc, 0, "ips", 0) == EWOULDBLOCK) 655 error = ETIMEDOUT; 656 IPS_UNLOCK(sc); 657 if (error == 0) { 658 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 659 BUS_DMASYNC_POSTWRITE); 660 } 661 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 662 exit: 663 bus_dmamem_free(command->data_dmatag, command->data_buffer, 664 command->data_dmamap); 665 bus_dma_tag_destroy(command->data_dmatag); 666 ips_insert_free_cmd(sc, command); 667 return error; 668 } 669 670 int 671 ips_update_nvram(ips_softc_t *sc) 672 { 673 ips_cmd_status_t *status; 674 675 status = malloc(sizeof(ips_cmd_status_t), M_DEVBUF, M_NOWAIT | M_ZERO); 676 if (status == NULL) 677 return ENOMEM; 678 if (ips_get_free_cmd(sc, ips_read_nvram, status, IPS_NOWAIT_FLAG)) { 679 free(status, M_DEVBUF); 680 device_printf(sc->dev, "ERROR: unable to get a command! " 681 "can't update nvram\n"); 682 return 1; 683 } 684 if (COMMAND_ERROR(status)) 685 device_printf(sc->dev, "ERROR: nvram update command failed!\n"); 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_NOWAIT | M_ZERO); 744 if (status == NULL) 745 return ENOMEM; 746 device_printf(sc->dev, "syncing config\n"); 747 if (ips_get_free_cmd(sc, ips_send_config_sync_cmd, status, 748 IPS_NOWAIT_FLAG)) { 749 free(status, M_DEVBUF); 750 device_printf(sc->dev, "ERROR: unable to get a command! " 751 "can't sync cache!\n"); 752 return 1; 753 } 754 if (COMMAND_ERROR(status)) { 755 free(status, M_DEVBUF); 756 device_printf(sc->dev, "ERROR: cache sync command failed!\n"); 757 return 1; 758 } 759 device_printf(sc->dev, "clearing error table\n"); 760 if (ips_get_free_cmd(sc, ips_send_error_table_cmd, status, 761 IPS_NOWAIT_FLAG)) { 762 free(status, M_DEVBUF); 763 device_printf(sc->dev, "ERROR: unable to get a command! " 764 "can't sync cache!\n"); 765 return 1; 766 } 767 if (COMMAND_ERROR(status)) { 768 device_printf(sc->dev, "ERROR: etable command failed!\n"); 769 free(status, M_DEVBUF); 770 return 1; 771 } 772 free(status, M_DEVBUF); 773 return 0; 774 } 775