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 1.10 2004/05/30 04:01:29 scottl Exp $ 28 * $DragonFly: src/sys/dev/raid/ips/ips_commands.c,v 1.7 2004/09/06 16:39:47 joerg Exp $ 29 */ 30 31 #include <dev/raid/ips/ips.h> 32 33 static int 34 ips_msleep(void *ident, struct ips_softc *sc, int priority, const char *wmesg, 35 int timo) 36 { 37 int r; 38 39 IPS_UNLOCK(sc); 40 r = tsleep(ident, priority, wmesg, timo); 41 IPS_LOCK(sc); 42 return r; 43 } 44 45 /* 46 * This is an interrupt callback. It is called from 47 * interrupt context when the adapter has completed the 48 * command. This very generic callback simply stores 49 * the command's return value in command->arg and wake's 50 * up anyone waiting on the command. 51 */ 52 static void 53 ips_wakeup_callback(ips_command_t *command) 54 { 55 ips_cmd_status_t *status; 56 57 status = command->arg; 58 status->value = command->status.value; 59 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap, 60 BUS_DMASYNC_POSTWRITE); 61 IPS_LOCK(command->sc); 62 wakeup(status); 63 IPS_UNLOCK(command->sc); 64 } 65 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 */ 72 static void 73 ips_io_request_finish(ips_command_t *command) 74 { 75 struct bio *iobuf = command->arg; 76 77 if (ips_read_request(iobuf)) { 78 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 79 BUS_DMASYNC_POSTREAD); 80 } else { 81 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 82 BUS_DMASYNC_POSTWRITE); 83 } 84 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 85 bus_dmamap_destroy(command->data_dmatag, command->data_dmamap); 86 if (COMMAND_ERROR(&command->status)) { 87 iobuf->bio_flags |=BIO_ERROR; 88 iobuf->bio_error = EIO; 89 } 90 ips_insert_free_cmd(command->sc, command); 91 ipsd_finish(iobuf); 92 } 93 94 static void 95 ips_io_request_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 96 int error) 97 { 98 ips_softc_t *sc; 99 ips_command_t *command = cmdptr; 100 ips_sg_element_t *sg_list; 101 ips_io_cmd *command_struct; 102 struct bio *iobuf = command->arg; 103 int i, length = 0; 104 u_int8_t cmdtype; 105 106 sc = command->sc; 107 if (error) { 108 printf("ips: error = %d in ips_sg_request_callback\n", error); 109 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 110 bus_dmamap_destroy(command->data_dmatag, command->data_dmamap); 111 iobuf->bio_flags |= BIO_ERROR; 112 iobuf->bio_error = ENOMEM; 113 ips_insert_free_cmd(sc, command); 114 ipsd_finish(iobuf); 115 return; 116 } 117 command_struct = (ips_io_cmd *)command->command_buffer; 118 command_struct->id = command->id; 119 command_struct->drivenum = (uintptr_t)iobuf->bio_driver1; 120 if (segnum != 1) { 121 if (ips_read_request(iobuf)) 122 cmdtype = IPS_SG_READ_CMD; 123 else 124 cmdtype = IPS_SG_WRITE_CMD; 125 command_struct->segnum = segnum; 126 sg_list = (ips_sg_element_t *)((u_int8_t *) 127 command->command_buffer + IPS_COMMAND_LEN); 128 for (i = 0; i < segnum; i++) { 129 sg_list[i].addr = segments[i].ds_addr; 130 sg_list[i].len = segments[i].ds_len; 131 length += segments[i].ds_len; 132 } 133 command_struct->buffaddr = 134 (u_int32_t)command->command_phys_addr + IPS_COMMAND_LEN; 135 } else { 136 if (ips_read_request(iobuf)) 137 cmdtype = IPS_READ_CMD; 138 else 139 cmdtype = IPS_WRITE_CMD; 140 command_struct->buffaddr = segments[0].ds_addr; 141 length = segments[0].ds_len; 142 } 143 command_struct->command = cmdtype; 144 command_struct->lba = iobuf->bio_pblkno; 145 length = (length + IPS_BLKSIZE - 1)/IPS_BLKSIZE; 146 command_struct->length = length; 147 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 148 BUS_DMASYNC_PREWRITE); 149 if (ips_read_request(iobuf)) { 150 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 151 BUS_DMASYNC_PREREAD); 152 } else { 153 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 154 BUS_DMASYNC_PREWRITE); 155 } 156 /* 157 * the cast to long long below is necessary because our b_pblkno 158 * is 32bit wide whereas it's 64bit on FreeBSD-CURRENT. 159 */ 160 PRINTF(10, "ips test: command id: %d segments: %d " 161 "pblkno: %lld length: %d, ds_len: %d\n", command->id, segnum, 162 (long long)iobuf->bio_pblkno, 163 length, segments[0].ds_len); 164 165 sc->ips_issue_cmd(command); 166 return; 167 } 168 169 static int 170 ips_send_io_request(ips_command_t *command) 171 { 172 ips_softc_t *sc = command->sc; 173 struct bio *iobuf = command->arg; 174 command->data_dmatag = sc->sg_dmatag; 175 176 if (bus_dmamap_create(command->data_dmatag, 0, &command->data_dmamap)) { 177 device_printf(sc->dev, "dmamap failed\n"); 178 iobuf->bio_flags |= BIO_ERROR; 179 iobuf->bio_error = ENOMEM; 180 ips_insert_free_cmd(sc, command); 181 ipsd_finish(iobuf); 182 return 0; 183 } 184 command->callback = ips_io_request_finish; 185 PRINTF(10, "ips test: : bcount %ld\n", iobuf->bio_bcount); 186 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 187 iobuf->bio_data, iobuf->bio_bcount, 188 ips_io_request_callback, command, 0); 189 return 0; 190 } 191 192 void 193 ips_start_io_request(ips_softc_t *sc, struct bio *iobuf) 194 { 195 if (ips_get_free_cmd(sc, ips_send_io_request, iobuf, 0)) { 196 device_printf(sc->dev, "no mem for command slots!\n"); 197 iobuf->bio_flags |= BIO_ERROR; 198 iobuf->bio_error = ENOMEM; 199 ipsd_finish(iobuf); 200 return; 201 } 202 return; 203 } 204 205 /* 206 * Below are a series of functions for sending an adapter info request 207 * to the adapter. The flow order is: get, send, callback. It uses 208 * the generic finish callback at the top of this file. 209 * This can be used to get configuration/status info from the card 210 */ 211 static void 212 ips_adapter_info_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, 213 int error) 214 { 215 ips_softc_t *sc; 216 ips_command_t *command = cmdptr; 217 ips_adapter_info_cmd *command_struct; 218 sc = command->sc; 219 if (error) { 220 ips_cmd_status_t * status = command->arg; 221 status->value = IPS_ERROR_STATUS; /* a lovely error value */ 222 ips_insert_free_cmd(sc, command); 223 printf("ips: error = %d in ips_get_adapter_info\n", error); 224 return; 225 } 226 command_struct = (ips_adapter_info_cmd *)command->command_buffer; 227 command_struct->command = IPS_ADAPTER_INFO_CMD; 228 command_struct->id = command->id; 229 command_struct->buffaddr = segments[0].ds_addr; 230 231 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 232 BUS_DMASYNC_PREWRITE); 233 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 234 BUS_DMASYNC_PREREAD); 235 sc->ips_issue_cmd(command); 236 } 237 238 static int 239 ips_send_adapter_info_cmd(ips_command_t *command) 240 { 241 ips_softc_t *sc = command->sc; 242 ips_cmd_status_t *status = command->arg; 243 int error = 0; 244 245 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 246 /* alignemnt */ 1, 247 /* boundary */ 0, 248 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 249 /* highaddr */ BUS_SPACE_MAXADDR, 250 /* filter */ NULL, 251 /* filterarg */ NULL, 252 /* maxsize */ IPS_ADAPTER_INFO_LEN, 253 /* numsegs */ 1, 254 /* maxsegsize*/ IPS_ADAPTER_INFO_LEN, 255 /* flags */ 0, 256 &command->data_dmatag) != 0) { 257 printf("ips: can't alloc dma tag for adapter status\n"); 258 error = ENOMEM; 259 goto exit; 260 } 261 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 262 BUS_DMA_NOWAIT, &command->data_dmamap)) { 263 error = ENOMEM; 264 goto exit; 265 } 266 command->callback = ips_wakeup_callback; 267 IPS_LOCK(sc); 268 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 269 command->data_buffer, IPS_ADAPTER_INFO_LEN, 270 ips_adapter_info_callback, command, BUS_DMA_NOWAIT); 271 if ((status->value == IPS_ERROR_STATUS) || 272 ips_msleep(status, sc, 0, "ips", 30 * hz) == EWOULDBLOCK) 273 error = ETIMEDOUT; 274 IPS_UNLOCK(sc); 275 if (error == 0) { 276 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 277 BUS_DMASYNC_POSTREAD); 278 memcpy(&(sc->adapter_info), command->data_buffer, 279 IPS_ADAPTER_INFO_LEN); 280 } 281 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 282 exit: 283 /* I suppose I should clean up my memory allocations */ 284 bus_dmamem_free(command->data_dmatag, command->data_buffer, 285 command->data_dmamap); 286 bus_dma_tag_destroy(command->data_dmatag); 287 ips_insert_free_cmd(sc, command); 288 return error; 289 } 290 291 int 292 ips_get_adapter_info(ips_softc_t *sc) 293 { 294 int error = 0; 295 ips_cmd_status_t *status; 296 297 status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_INTWAIT | M_ZERO); 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_IPSBUF); 302 return ENXIO; 303 } 304 if (COMMAND_ERROR(status)) 305 error = ENXIO; 306 free(status, M_IPSBUF); 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_IPSBUF, M_INTWAIT | M_ZERO); 408 if (ips_get_free_cmd(sc, ips_send_drive_info_cmd, status, 409 IPS_NOWAIT_FLAG) > 0) { 410 free(status, M_IPSBUF); 411 device_printf(sc->dev, "unable to get drive configuration\n"); 412 return ENXIO; 413 } 414 if (COMMAND_ERROR(status)) 415 error = ENXIO; 416 free(status, M_IPSBUF); 417 return error; 418 } 419 420 /* 421 * Below is a pair of functions for making sure data is safely 422 * on disk by flushing the adapter's cache. 423 */ 424 static int 425 ips_send_flush_cache_cmd(ips_command_t *command) 426 { 427 ips_softc_t *sc = command->sc; 428 ips_cmd_status_t *status = command->arg; 429 ips_generic_cmd *command_struct; 430 431 PRINTF(10,"ips test: got a command, building flush command\n"); 432 command->callback = ips_wakeup_callback; 433 command_struct = (ips_generic_cmd *)command->command_buffer; 434 command_struct->command = IPS_CACHE_FLUSH_CMD; 435 command_struct->id = command->id; 436 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 437 BUS_DMASYNC_PREWRITE); 438 IPS_LOCK(sc); 439 sc->ips_issue_cmd(command); 440 if (status->value != IPS_ERROR_STATUS) 441 ips_msleep(status, sc, 0, "flush2", 0); 442 IPS_UNLOCK(sc); 443 ips_insert_free_cmd(sc, command); 444 return 0; 445 } 446 447 int 448 ips_flush_cache(ips_softc_t *sc) 449 { 450 ips_cmd_status_t *status; 451 452 status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_INTWAIT | M_ZERO); 453 device_printf(sc->dev, "flushing cache\n"); 454 if (ips_get_free_cmd(sc, ips_send_flush_cache_cmd, status, 455 IPS_NOWAIT_FLAG)) { 456 free(status, M_IPSBUF); 457 device_printf(sc->dev, "ERROR: unable to get a command! " 458 "can't flush cache!\n"); 459 return 1; 460 } 461 if (COMMAND_ERROR(status)) { 462 free(status, M_IPSBUF); 463 device_printf(sc->dev, "ERROR: cache flush command failed!\n"); 464 return 1; 465 } 466 free(status, M_IPSBUF); 467 return 0; 468 } 469 470 /* 471 * Simplified localtime to provide timevalues for ffdc. 472 * Taken from libc/stdtime/localtime.c 473 */ 474 static void 475 ips_ffdc_settime(ips_adapter_ffdc_cmd *command, time_t sctime) 476 { 477 long days, rem, y; 478 int yleap, *ip, month; 479 int year_lengths[2] = { IPS_DAYSPERNYEAR, IPS_DAYSPERLYEAR }; 480 int mon_lengths[2][IPS_MONSPERYEAR] = { 481 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 482 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 483 }; 484 485 days = sctime / IPS_SECSPERDAY; 486 rem = sctime % IPS_SECSPERDAY; 487 488 command->hour = rem / IPS_SECSPERHOUR; 489 rem = rem % IPS_SECSPERHOUR; 490 491 command->minute = rem / IPS_SECSPERMIN; 492 command->second = rem % IPS_SECSPERMIN; 493 494 y = IPS_EPOCH_YEAR; 495 while (days < 0 || days >= (long)year_lengths[yleap = ips_isleap(y)]) { 496 long newy; 497 498 newy = y + days / IPS_DAYSPERNYEAR; 499 if (days < 0) 500 --newy; 501 days -= (newy - y) * IPS_DAYSPERNYEAR + 502 IPS_LEAPS_THRU_END_OF(newy - 1) - 503 IPS_LEAPS_THRU_END_OF(y - 1); 504 y = newy; 505 } 506 command->yearH = y / 100; 507 command->yearL = y % 100; 508 ip = mon_lengths[yleap]; 509 for (month = 0; days >= (long)ip[month]; ++month) 510 days = days - (long)ip[month]; 511 command->month = month + 1; 512 command->day = days + 1; 513 } 514 515 static int 516 ips_send_ffdc_reset_cmd(ips_command_t *command) 517 { 518 ips_softc_t *sc = command->sc; 519 ips_cmd_status_t *status = command->arg; 520 ips_adapter_ffdc_cmd *command_struct; 521 522 PRINTF(10, "ips test: got a command, building ffdc reset command\n"); 523 command->callback = ips_wakeup_callback; 524 command_struct = (ips_adapter_ffdc_cmd *)command->command_buffer; 525 command_struct->command = IPS_FFDC_CMD; 526 command_struct->id = command->id; 527 command_struct->reset_count = sc->ffdc_resetcount; 528 command_struct->reset_type = 0x0; 529 ips_ffdc_settime(command_struct, sc->ffdc_resettime.tv_sec); 530 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 531 BUS_DMASYNC_PREWRITE); 532 IPS_LOCK(sc); 533 sc->ips_issue_cmd(command); 534 if (status->value != IPS_ERROR_STATUS) 535 ips_msleep(status, sc, 0, "ffdc", 0); 536 IPS_UNLOCK(sc); 537 ips_insert_free_cmd(sc, command); 538 return 0; 539 } 540 541 int 542 ips_ffdc_reset(ips_softc_t *sc) 543 { 544 ips_cmd_status_t *status; 545 546 status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_INTWAIT | M_ZERO); 547 if (ips_get_free_cmd(sc, ips_send_ffdc_reset_cmd, status, 548 IPS_NOWAIT_FLAG)) { 549 free(status, M_IPSBUF); 550 device_printf(sc->dev, "ERROR: unable to get a command! " 551 "can't send ffdc reset!\n"); 552 return 1; 553 } 554 if (COMMAND_ERROR(status)) { 555 free(status, M_IPSBUF); 556 device_printf(sc->dev, "ERROR: ffdc reset command failed!\n"); 557 return 1; 558 } 559 free(status, M_IPSBUF); 560 return 0; 561 } 562 563 static void 564 ips_write_nvram(ips_command_t *command) 565 { 566 ips_softc_t *sc = command->sc; 567 ips_rw_nvram_cmd *command_struct; 568 ips_nvram_page5 *nvram; 569 570 /*FIXME check for error */ 571 command->callback = ips_wakeup_callback; 572 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 573 command_struct->command = IPS_RW_NVRAM_CMD; 574 command_struct->id = command->id; 575 command_struct->pagenum = 5; 576 command_struct->rw = 1; /* write */ 577 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 578 BUS_DMASYNC_POSTREAD); 579 nvram = command->data_buffer; 580 /* retrieve adapter info and save in sc */ 581 sc->adapter_type = nvram->adapter_type; 582 strncpy(nvram->driver_high, IPS_VERSION_MAJOR, 4); 583 strncpy(nvram->driver_low, IPS_VERSION_MINOR, 4); 584 nvram->operating_system = IPS_OS_FREEBSD; 585 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 586 BUS_DMASYNC_PREWRITE); 587 sc->ips_issue_cmd(command); 588 } 589 590 static void 591 ips_read_nvram_callback(void *cmdptr, bus_dma_segment_t *segments, int segnum, 592 int error) 593 { 594 ips_softc_t *sc; 595 ips_command_t *command = cmdptr; 596 ips_rw_nvram_cmd *command_struct; 597 598 sc = command->sc; 599 if (error) { 600 ips_cmd_status_t *status = command->arg; 601 602 status->value = IPS_ERROR_STATUS; 603 ips_insert_free_cmd(sc, command); 604 printf("ips: error = %d in ips_read_nvram_callback\n", error); 605 return; 606 } 607 command_struct = (ips_rw_nvram_cmd *)command->command_buffer; 608 command_struct->command = IPS_RW_NVRAM_CMD; 609 command_struct->id = command->id; 610 command_struct->pagenum = 5; 611 command_struct->rw = 0; 612 command_struct->buffaddr = segments[0].ds_addr; 613 614 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 615 BUS_DMASYNC_PREWRITE); 616 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 617 BUS_DMASYNC_PREREAD); 618 sc->ips_issue_cmd(command); 619 } 620 621 static int 622 ips_read_nvram(ips_command_t *command) 623 { 624 int error = 0; 625 ips_softc_t *sc = command->sc; 626 ips_cmd_status_t *status = command->arg; 627 628 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 629 /* alignemnt */ 1, 630 /* boundary */ 0, 631 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 632 /* highaddr */ BUS_SPACE_MAXADDR, 633 /* filter */ NULL, 634 /* filterarg */ NULL, 635 /* maxsize */ IPS_NVRAM_PAGE_SIZE, 636 /* numsegs */ 1, 637 /* maxsegsize*/ IPS_NVRAM_PAGE_SIZE, 638 /* flags */ 0, 639 &command->data_dmatag) != 0) { 640 printf("ips: can't alloc dma tag for nvram\n"); 641 error = ENOMEM; 642 goto exit; 643 } 644 if (bus_dmamem_alloc(command->data_dmatag, &command->data_buffer, 645 BUS_DMA_NOWAIT, &command->data_dmamap)) { 646 error = ENOMEM; 647 goto exit; 648 } 649 command->callback = ips_write_nvram; 650 IPS_LOCK(sc); 651 bus_dmamap_load(command->data_dmatag, command->data_dmamap, 652 command->data_buffer, IPS_NVRAM_PAGE_SIZE, ips_read_nvram_callback, 653 command, BUS_DMA_NOWAIT); 654 if ((status->value == IPS_ERROR_STATUS) || 655 ips_msleep(status, sc, 0, "ips", 0) == EWOULDBLOCK) 656 error = ETIMEDOUT; 657 IPS_UNLOCK(sc); 658 if (error == 0) { 659 bus_dmamap_sync(command->data_dmatag, command->data_dmamap, 660 BUS_DMASYNC_POSTWRITE); 661 } 662 bus_dmamap_unload(command->data_dmatag, command->data_dmamap); 663 exit: 664 bus_dmamem_free(command->data_dmatag, command->data_buffer, 665 command->data_dmamap); 666 bus_dma_tag_destroy(command->data_dmatag); 667 ips_insert_free_cmd(sc, command); 668 return error; 669 } 670 671 int 672 ips_update_nvram(ips_softc_t *sc) 673 { 674 ips_cmd_status_t *status; 675 676 status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_INTWAIT | M_ZERO); 677 if (ips_get_free_cmd(sc, ips_read_nvram, status, IPS_NOWAIT_FLAG)) { 678 free(status, M_IPSBUF); 679 device_printf(sc->dev, "ERROR: unable to get a command! " 680 "can't update nvram\n"); 681 return 1; 682 } 683 if (COMMAND_ERROR(status)) { 684 free(status, M_IPSBUF); 685 device_printf(sc->dev, "ERROR: nvram update command failed!\n"); 686 return 1; 687 } 688 free(status, M_IPSBUF); 689 return 0; 690 } 691 692 static int 693 ips_send_config_sync_cmd(ips_command_t *command) 694 { 695 ips_softc_t *sc = command->sc; 696 ips_cmd_status_t *status = command->arg; 697 ips_generic_cmd *command_struct; 698 699 PRINTF(10, "ips test: got a command, building flush command\n"); 700 command->callback = ips_wakeup_callback; 701 command_struct = (ips_generic_cmd *)command->command_buffer; 702 command_struct->command = IPS_CONFIG_SYNC_CMD; 703 command_struct->id = command->id; 704 command_struct->reserve2 = IPS_POCL; 705 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 706 BUS_DMASYNC_PREWRITE); 707 IPS_LOCK(sc); 708 sc->ips_issue_cmd(command); 709 if (status->value != IPS_ERROR_STATUS) 710 ips_msleep(status, sc, 0, "ipssyn", 0); 711 IPS_UNLOCK(sc); 712 ips_insert_free_cmd(sc, command); 713 return 0; 714 } 715 716 static int 717 ips_send_error_table_cmd(ips_command_t *command) 718 { 719 ips_softc_t *sc = command->sc; 720 ips_cmd_status_t *status = command->arg; 721 ips_generic_cmd *command_struct; 722 723 PRINTF(10, "ips test: got a command, building errortable command\n"); 724 command->callback = ips_wakeup_callback; 725 command_struct = (ips_generic_cmd *)command->command_buffer; 726 command_struct->command = IPS_ERROR_TABLE_CMD; 727 command_struct->id = command->id; 728 command_struct->reserve2 = IPS_CSL; 729 bus_dmamap_sync(sc->command_dmatag, command->command_dmamap, 730 BUS_DMASYNC_PREWRITE); 731 IPS_LOCK(sc); 732 sc->ips_issue_cmd(command); 733 if (status->value != IPS_ERROR_STATUS) 734 ips_msleep(status, sc, 0, "ipsetc", 0); 735 IPS_UNLOCK(sc); 736 ips_insert_free_cmd(sc, command); 737 return 0; 738 } 739 740 int 741 ips_clear_adapter(ips_softc_t *sc) 742 { 743 ips_cmd_status_t *status; 744 745 status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_INTWAIT | M_ZERO); 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_IPSBUF); 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_IPSBUF); 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_IPSBUF); 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_IPSBUF); 770 return 1; 771 } 772 free(status, M_IPSBUF); 773 return 0; 774 } 775