1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2023 Racktop Systems, Inc. 14 */ 15 16 /* 17 * This file implements the RAID iport and tgtmap of lmrc. 18 * 19 * When the RAID iport is attached, a FULLSET tgtmap is created for RAID 20 * devices (LDs). This does not only include RAID volumes, as one would expect, 21 * but also physical disk on some controllers in JBOD mode. 22 * 23 * During attach or as a result of an async event received from the hardware, 24 * we'll get the LD list from the HBA and populate the tgtmap with what we have 25 * found. For each LD we'll try to get the SAS WWN by sending an INQUIRY for 26 * VPD 0x83, setting up a temporary struct scsi_device to be able to use the 27 * normal SCSI I/O code path despite the device not being known to the system 28 * at this point. 29 * 30 * If the device has a SAS WWN, this will be used as device address. Otherwise 31 * we'll use the internal target ID the HBA uses. 32 * 33 * The target activate and deactivate callbacks for RAID devices are kept really 34 * simple, just calling the common lmrc_tgt init/clear functions. 35 */ 36 37 #include <sys/ddi.h> 38 #include <sys/sunddi.h> 39 40 #include "lmrc.h" 41 #include "lmrc_reg.h" 42 #include "lmrc_raid.h" 43 44 static int lmrc_get_raidmap(lmrc_t *, lmrc_fw_raid_map_t **); 45 static int lmrc_sync_raidmap(lmrc_t *); 46 static void lmrc_sync_raidmap_again(lmrc_t *, lmrc_mfi_cmd_t *); 47 static void lmrc_complete_sync_raidmap(lmrc_t *, lmrc_mfi_cmd_t *); 48 static int lmrc_validate_raidmap(lmrc_t *, lmrc_fw_raid_map_t *); 49 50 static void lmrc_raid_tgt_activate_cb(void *, char *, scsi_tgtmap_tgt_type_t, 51 void **); 52 static boolean_t lmrc_raid_tgt_deactivate_cb(void *, char *, 53 scsi_tgtmap_tgt_type_t, void *, scsi_tgtmap_deact_rsn_t); 54 static struct buf *lmrc_raid_send_inquiry(lmrc_t *, lmrc_tgt_t *, uint8_t, 55 uint8_t); 56 static uint64_t lmrc_raid_get_wwn(lmrc_t *, uint8_t); 57 static int lmrc_raid_update_tgtmap(lmrc_t *, lmrc_ld_tgtid_list_t *); 58 59 60 /* 61 * lmrc_get_raidmap 62 * 63 * Get the RAID map from firmware. Return a minimally sized copy. 64 */ 65 static int 66 lmrc_get_raidmap(lmrc_t *lmrc, lmrc_fw_raid_map_t **raidmap) 67 { 68 lmrc_mfi_cmd_t *mfi; 69 lmrc_fw_raid_map_t *rm; 70 int ret; 71 72 mfi = lmrc_get_dcmd(lmrc, MFI_FRAME_DIR_READ, LMRC_DCMD_LD_MAP_GET_INFO, 73 lmrc->l_max_map_sz, 4); 74 75 if (mfi == NULL) 76 return (DDI_FAILURE); 77 78 ret = lmrc_issue_blocked_mfi(lmrc, mfi); 79 80 if (ret != DDI_SUCCESS) 81 goto out; 82 83 (void) ddi_dma_sync(mfi->mfi_data_dma.ld_hdl, 0, 84 mfi->mfi_data_dma.ld_len, DDI_DMA_SYNC_FORKERNEL); 85 86 rm = mfi->mfi_data_dma.ld_buf; 87 if (rm->rm_raidmap_sz > lmrc->l_max_map_sz) { 88 dev_err(lmrc->l_dip, CE_WARN, 89 "!FW reports a too large RAID map size: %d", 90 rm->rm_raidmap_sz); 91 ret = DDI_FAILURE; 92 goto out; 93 } 94 95 *raidmap = kmem_zalloc(rm->rm_raidmap_sz, KM_SLEEP); 96 bcopy(rm, *raidmap, rm->rm_raidmap_sz); 97 98 out: 99 lmrc_put_dcmd(lmrc, mfi); 100 101 return (ret); 102 } 103 104 /* 105 * lmrc_sync_raidmap 106 * 107 * Generate a LD target map from the RAID map and send that to the firmware. 108 * The command will complete when firmware detects a change, returning a new 109 * RAID map in the DMA memory. The size of the RAID map isn't expected to 110 * change, so thats what's used as size for the DMA memory. 111 * 112 * mbox byte values: 113 * [0]: number of LDs 114 * [1]: PEND_FLAG, delay completion until a config change pending 115 */ 116 static int 117 lmrc_sync_raidmap(lmrc_t *lmrc) 118 { 119 lmrc_fw_raid_map_t *rm; 120 lmrc_mfi_cmd_t *mfi; 121 lmrc_mfi_dcmd_payload_t *dcmd; 122 123 rw_enter(&lmrc->l_raidmap_lock, RW_READER); 124 rm = lmrc->l_raidmap; 125 mfi = lmrc_get_dcmd(lmrc, MFI_FRAME_DIR_WRITE, 126 LMRC_DCMD_LD_MAP_GET_INFO, rm->rm_raidmap_sz, 4); 127 128 if (mfi == NULL) { 129 rw_exit(&lmrc->l_raidmap_lock); 130 return (DDI_FAILURE); 131 } 132 133 dcmd = &mfi->mfi_frame->mf_dcmd; 134 dcmd->md_mbox_8[0] = rm->rm_ld_count; 135 dcmd->md_mbox_8[1] = LMRC_DCMD_MBOX_PEND_FLAG; 136 rw_exit(&lmrc->l_raidmap_lock); 137 138 mutex_enter(&mfi->mfi_lock); 139 lmrc_sync_raidmap_again(lmrc, mfi); 140 mutex_exit(&mfi->mfi_lock); 141 142 return (DDI_SUCCESS); 143 } 144 145 /* 146 * lmrc_sync_raidmap_again 147 * 148 * Called by lmrc_sync_raidmap() and lmrc_complete_sync_raidmap() to avoid 149 * deallocating and reallocating DMA memory and MFI command in the latter, 150 * while executing in interrupt context. 151 * 152 * This is doing the actual work of building the LD target map for FW and 153 * issuing the command, but it does no sleeping allocations and it cannot fail. 154 */ 155 static void 156 lmrc_sync_raidmap_again(lmrc_t *lmrc, lmrc_mfi_cmd_t *mfi) 157 { 158 lmrc_fw_raid_map_t *rm; 159 lmrc_dma_t *dma = &mfi->mfi_data_dma; 160 lmrc_ld_tgt_t *ld_sync = dma->ld_buf; 161 lmrc_mfi_dcmd_payload_t *dcmd = &mfi->mfi_frame->mf_dcmd; 162 uint32_t ld; 163 164 bzero(dma->ld_buf, dma->ld_len); 165 166 rw_enter(&lmrc->l_raidmap_lock, RW_READER); 167 rm = lmrc->l_raidmap; 168 for (ld = 0; ld < rm->rm_ld_count; ld++) { 169 lmrc_ld_raid_t *lr = lmrc_ld_raid_get(ld, rm); 170 171 ASSERT(lr != NULL); 172 173 ld_sync[ld].lt_tgtid = lr->lr_target_id; 174 ld_sync[ld].lt_seqnum = lr->lr_seq_num; 175 } 176 dcmd->md_mbox_8[0] = rm->rm_ld_count; 177 rw_exit(&lmrc->l_raidmap_lock); 178 179 ASSERT(mutex_owned(&mfi->mfi_lock)); 180 lmrc_issue_mfi(lmrc, mfi, lmrc_complete_sync_raidmap); 181 } 182 183 /* 184 * lmrc_complete_sync_raidmap 185 * 186 * The firmware completed our request to sync the LD target map, indicating 187 * that the configuration has changed. There's a new RAID map in the DMA memory. 188 */ 189 static void 190 lmrc_complete_sync_raidmap(lmrc_t *lmrc, lmrc_mfi_cmd_t *mfi) 191 { 192 lmrc_mfi_header_t *hdr = &mfi->mfi_frame->mf_hdr; 193 lmrc_dma_t *dma = &mfi->mfi_data_dma; 194 lmrc_fw_raid_map_t *rm = dma->ld_buf; 195 196 ASSERT(mutex_owned(&mfi->mfi_lock)); 197 198 if (hdr->mh_cmd_status != MFI_STAT_OK) { 199 /* Was the command aborted? */ 200 if (hdr->mh_cmd_status == MFI_STAT_NOT_FOUND) 201 return; 202 203 dev_err(lmrc->l_dip, CE_WARN, 204 "!LD target map sync failed, status = %d", 205 hdr->mh_cmd_status); 206 taskq_dispatch_ent(lmrc->l_taskq, (task_func_t *)lmrc_put_mfi, 207 mfi, TQ_NOSLEEP, &mfi->mfi_tqent); 208 return; 209 } 210 211 if (lmrc_validate_raidmap(lmrc, rm) != DDI_SUCCESS) 212 return; 213 214 rw_enter(&lmrc->l_raidmap_lock, RW_WRITER); 215 VERIFY3U(lmrc->l_raidmap->rm_raidmap_sz, ==, dma->ld_len); 216 bcopy(rm, lmrc->l_raidmap, lmrc->l_raidmap->rm_raidmap_sz); 217 rw_exit(&lmrc->l_raidmap_lock); 218 lmrc_sync_raidmap_again(lmrc, mfi); 219 } 220 221 /* 222 * lmrc_validata_raidmap 223 * 224 * Basic sanity checks of a RAID map as returned by the firmware. 225 */ 226 static int 227 lmrc_validate_raidmap(lmrc_t *lmrc, lmrc_fw_raid_map_t *raidmap) 228 { 229 lmrc_raid_map_desc_t *desc; 230 int i; 231 232 /* Do a basic sanity check of the descriptor table offset and sizes. */ 233 if (raidmap->rm_desc_table_off > raidmap->rm_raidmap_sz) 234 return (DDI_FAILURE); 235 if (raidmap->rm_desc_table_off + raidmap->rm_desc_table_sz > 236 raidmap->rm_raidmap_sz) 237 return (DDI_FAILURE); 238 if (raidmap->rm_desc_table_nelem != LMRC_RAID_MAP_DESC_TYPES_COUNT) 239 return (DDI_FAILURE); 240 if (raidmap->rm_desc_table_sz != 241 raidmap->rm_desc_table_nelem * sizeof (lmrc_raid_map_desc_t)) 242 return (DDI_FAILURE); 243 244 desc = (lmrc_raid_map_desc_t *) 245 ((uint8_t *)raidmap + raidmap->rm_desc_table_off); 246 247 /* Fill in descriptor pointers */ 248 for (i = 0; i < raidmap->rm_desc_table_nelem; i++) { 249 /* Do a basic sanity check of the descriptor itself. */ 250 if (desc[i].rmd_type >= LMRC_RAID_MAP_DESC_TYPES_COUNT) 251 return (DDI_FAILURE); 252 if (desc[i].rmd_off + raidmap->rm_desc_table_off + 253 raidmap->rm_desc_table_sz > 254 raidmap->rm_raidmap_sz) 255 return (DDI_FAILURE); 256 if (desc[i].rmd_off + desc[i].rmd_bufsz + 257 raidmap->rm_desc_table_off + raidmap->rm_desc_table_sz > 258 raidmap->rm_raidmap_sz) 259 return (DDI_FAILURE); 260 261 raidmap->rm_desc_ptrs[desc[i].rmd_type] = (void *) 262 ((uint8_t *)desc + raidmap->rm_desc_table_sz + 263 desc[i].rmd_off); 264 } 265 266 return (DDI_SUCCESS); 267 } 268 269 /* 270 * lmrc_setup_raidmap 271 * 272 * Get the crrent RAID map from the firmware. If it validates, replace the 273 * copy in the soft state and send a LD target map to the firmware. 274 */ 275 int 276 lmrc_setup_raidmap(lmrc_t *lmrc) 277 { 278 lmrc_fw_raid_map_t *raidmap; 279 int ret; 280 281 ret = lmrc_get_raidmap(lmrc, &raidmap); 282 if (ret != DDI_SUCCESS) 283 return (ret); 284 285 ret = lmrc_validate_raidmap(lmrc, raidmap); 286 if (ret != DDI_SUCCESS) { 287 kmem_free(raidmap, raidmap->rm_raidmap_sz); 288 return (ret); 289 } 290 291 rw_enter(&lmrc->l_raidmap_lock, RW_WRITER); 292 lmrc_free_raidmap(lmrc); 293 lmrc->l_raidmap = raidmap; 294 rw_exit(&lmrc->l_raidmap_lock); 295 296 ret = lmrc_sync_raidmap(lmrc); 297 298 return (ret); 299 } 300 301 /* 302 * lmrc_free_raidmap 303 * 304 * Free the buffer used to hold the RAID map. 305 */ 306 void 307 lmrc_free_raidmap(lmrc_t *lmrc) 308 { 309 if (lmrc->l_raidmap != NULL) { 310 kmem_free(lmrc->l_raidmap, lmrc->l_raidmap->rm_raidmap_sz); 311 lmrc->l_raidmap = NULL; 312 } 313 } 314 315 /* 316 * lmrc_ld_tm_capable 317 */ 318 boolean_t 319 lmrc_ld_tm_capable(lmrc_t *lmrc, uint16_t tgtid) 320 { 321 boolean_t tm_capable = B_FALSE; 322 323 rw_enter(&lmrc->l_raidmap_lock, RW_READER); 324 if (lmrc->l_raidmap != NULL) { 325 uint16_t ld_id = lmrc_ld_id_get(tgtid, lmrc->l_raidmap); 326 lmrc_ld_raid_t *lr = lmrc_ld_raid_get(ld_id, lmrc->l_raidmap); 327 328 if (lr->lr_cap.lc_tm_cap != 0) 329 tm_capable = B_TRUE; 330 } 331 rw_exit(&lmrc->l_raidmap_lock); 332 333 return (tm_capable); 334 } 335 336 337 338 /* 339 * lmrc_raid_tgt_activate_cb 340 * 341 * Set up a tgt structure for a newly discovered LD. 342 */ 343 static void 344 lmrc_raid_tgt_activate_cb(void *tgtmap_priv, char *tgt_addr, 345 scsi_tgtmap_tgt_type_t type, void **tgt_privp) 346 { 347 lmrc_t *lmrc = tgtmap_priv; 348 lmrc_tgt_t *tgt = *tgt_privp; 349 uint16_t tgtid = tgt - lmrc->l_targets; 350 351 VERIFY(lmrc == tgt->tgt_lmrc); 352 353 VERIFY3U(tgtid, <, LMRC_MAX_LD); 354 355 lmrc_tgt_init(tgt, tgtid, tgt_addr, NULL); 356 } 357 358 /* 359 * lmrc_raid_tgt_deactivate_cb 360 * 361 * Tear down the tgt structure of a LD that is no longer present. 362 */ 363 static boolean_t 364 lmrc_raid_tgt_deactivate_cb(void *tgtmap_priv, char *tgtaddr, 365 scsi_tgtmap_tgt_type_t type, void *tgt_priv, scsi_tgtmap_deact_rsn_t deact) 366 { 367 lmrc_t *lmrc = tgtmap_priv; 368 lmrc_tgt_t *tgt = tgt_priv; 369 370 VERIFY(lmrc == tgt->tgt_lmrc); 371 372 lmrc_tgt_clear(tgt); 373 374 return (B_FALSE); 375 } 376 377 /* 378 * lmrc_raid_send_inquiry 379 * 380 * Fake a scsi_device and scsi_address, use the SCSA functions to allocate 381 * a buf and a scsi_pkt, and issue a INQUIRY command to the target. Return 382 * the buf on success, NULL otherwise. 383 */ 384 static struct buf * 385 lmrc_raid_send_inquiry(lmrc_t *lmrc, lmrc_tgt_t *tgt, uint8_t evpd, 386 uint8_t page_code) 387 { 388 struct buf *inq_bp = NULL; 389 struct scsi_pkt *inq_pkt = NULL; 390 const size_t len = 0xf0; /* max INQUIRY length */ 391 struct scsi_device sd; 392 int ret; 393 394 /* 395 * Fake a scsi_device and scsi_address so we can use the scsi functions, 396 * which in turn call our tran_setup_pkt and tran_start functions. 397 */ 398 bzero(&sd, sizeof (sd)); 399 sd.sd_address.a_hba_tran = ddi_get_driver_private(lmrc->l_raid_dip); 400 sd.sd_address.a.a_sd = &sd; 401 scsi_device_hba_private_set(&sd, tgt); 402 403 /* 404 * Get a buffer for INQUIRY. 405 */ 406 inq_bp = scsi_alloc_consistent_buf(&sd.sd_address, NULL, 407 len, B_READ, SLEEP_FUNC, NULL); 408 409 if (inq_bp == NULL) 410 goto out; 411 412 inq_pkt = scsi_init_pkt(&sd.sd_address, NULL, inq_bp, CDB_GROUP0, 413 sizeof (struct scsi_arq_status), 0, PKT_CONSISTENT, SLEEP_FUNC, 414 NULL); 415 416 if (inq_pkt == NULL) 417 goto fail; 418 419 (void) scsi_setup_cdb((union scsi_cdb *)inq_pkt->pkt_cdbp, 420 SCMD_INQUIRY, 0, len, 0); 421 inq_pkt->pkt_cdbp[1] = evpd; 422 inq_pkt->pkt_cdbp[2] = page_code; 423 424 ret = scsi_poll(inq_pkt); 425 426 scsi_destroy_pkt(inq_pkt); 427 428 if (ret != 0) { 429 fail: 430 scsi_free_consistent_buf(inq_bp); 431 inq_bp = NULL; 432 } 433 434 out: 435 return (inq_bp); 436 } 437 438 /* 439 * lmrc_raid_get_wwn 440 * 441 * LDs may have a WWN, but the hardware doesn't just tell us about it. 442 * Send an INQUIRY to the target and get VPD page 0x83. If the target 443 * does have a WWN, return it. 444 */ 445 static uint64_t 446 lmrc_raid_get_wwn(lmrc_t *lmrc, uint8_t tgtid) 447 { 448 lmrc_tgt_t *tgt = &lmrc->l_targets[tgtid]; 449 char *guid = NULL; 450 struct buf *inq_bp = NULL, *inq83_bp = NULL; 451 uint64_t wwn = 0; 452 ddi_devid_t devid; 453 int ret; 454 455 /* 456 * Make sure we have the target ID set in the target structure. 457 */ 458 rw_enter(&tgt->tgt_lock, RW_WRITER); 459 VERIFY3U(tgt->tgt_lmrc, ==, lmrc); 460 if (tgt->tgt_dev_id == LMRC_DEVHDL_INVALID) 461 tgt->tgt_dev_id = tgtid; 462 else 463 VERIFY3U(tgt->tgt_dev_id, ==, tgtid); 464 rw_exit(&tgt->tgt_lock); 465 466 /* Get basic INQUIRY data from device. */ 467 inq_bp = lmrc_raid_send_inquiry(lmrc, tgt, 0, 0); 468 if (inq_bp == NULL) 469 goto fail; 470 471 /* Get VPD 83 from INQUIRY. */ 472 inq83_bp = lmrc_raid_send_inquiry(lmrc, tgt, 1, 0x83); 473 if (inq83_bp == NULL) 474 goto fail; 475 476 /* Try to turn the VPD83 data into a devid. */ 477 ret = ddi_devid_scsi_encode(DEVID_SCSI_ENCODE_VERSION1, 478 NULL, (uchar_t *)inq_bp->b_un.b_addr, sizeof (struct scsi_inquiry), 479 NULL, 0, (uchar_t *)inq83_bp->b_un.b_addr, inq83_bp->b_bcount, 480 &devid); 481 if (ret != DDI_SUCCESS) 482 goto fail; 483 484 /* Extract the GUID from the devid. */ 485 guid = ddi_devid_to_guid(devid); 486 if (guid == NULL) 487 goto fail; 488 489 /* Convert the GUID to a WWN. */ 490 (void) scsi_wwnstr_to_wwn(guid, &wwn); 491 492 ddi_devid_free_guid(guid); 493 494 fail: 495 if (inq_bp != NULL) 496 scsi_free_consistent_buf(inq_bp); 497 if (inq83_bp != NULL) 498 scsi_free_consistent_buf(inq83_bp); 499 500 return (wwn); 501 } 502 503 /* 504 * lmrc_raid_update_tgtmap 505 * 506 * Feed the LD target ID list into the target map. Try to get a WWN for each LD. 507 */ 508 static int 509 lmrc_raid_update_tgtmap(lmrc_t *lmrc, lmrc_ld_tgtid_list_t *ld_list) 510 { 511 int ret; 512 int i; 513 514 if (ld_list->ltl_count > lmrc->l_fw_supported_vd_count) 515 return (DDI_FAILURE); 516 517 ret = scsi_hba_tgtmap_set_begin(lmrc->l_raid_tgtmap); 518 if (ret != DDI_SUCCESS) 519 return (ret); 520 521 for (i = 0; i < ld_list->ltl_count; i++) { 522 uint8_t tgtid = ld_list->ltl_tgtid[i]; 523 char name[SCSI_WWN_BUFLEN]; 524 uint64_t wwn; 525 526 if (tgtid > lmrc->l_fw_supported_vd_count) { 527 dev_err(lmrc->l_dip, CE_WARN, 528 "!%s: invalid LD tgt id %d", __func__, tgtid); 529 goto fail; 530 } 531 532 wwn = lmrc_raid_get_wwn(lmrc, tgtid); 533 if (wwn != 0) 534 (void) scsi_wwn_to_wwnstr(wwn, 0, name); 535 else 536 (void) snprintf(name, sizeof (name), "%d", tgtid); 537 538 ret = scsi_hba_tgtmap_set_add(lmrc->l_raid_tgtmap, 539 SCSI_TGT_SCSI_DEVICE, name, &lmrc->l_targets[tgtid]); 540 541 if (ret != DDI_SUCCESS) 542 goto fail; 543 } 544 545 return (scsi_hba_tgtmap_set_end(lmrc->l_raid_tgtmap, 0)); 546 547 fail: 548 (void) scsi_hba_tgtmap_set_flush(lmrc->l_raid_tgtmap); 549 return (DDI_FAILURE); 550 } 551 552 /* 553 * lmrc_get_ld_list 554 * 555 * Query the controller for a list of currently known LDs. Use the information 556 * to update the target map. 557 */ 558 int 559 lmrc_get_ld_list(lmrc_t *lmrc) 560 { 561 lmrc_mfi_dcmd_payload_t *dcmd; 562 lmrc_mfi_cmd_t *mfi; 563 int ret; 564 565 mfi = lmrc_get_dcmd(lmrc, MFI_FRAME_DIR_READ, LMRC_DCMD_LD_LIST_QUERY, 566 sizeof (lmrc_ld_tgtid_list_t) + lmrc->l_fw_supported_vd_count, 1); 567 568 if (mfi == NULL) 569 return (DDI_FAILURE); 570 571 dcmd = &mfi->mfi_frame->mf_dcmd; 572 dcmd->md_mbox_8[0] = LMRC_LD_QUERY_TYPE_EXPOSED_TO_HOST; 573 574 if (lmrc->l_max_256_vd_support) 575 dcmd->md_mbox_8[2] = 1; 576 577 ret = lmrc_issue_blocked_mfi(lmrc, mfi); 578 579 if (ret != DDI_SUCCESS) 580 goto out; 581 582 ret = lmrc_raid_update_tgtmap(lmrc, mfi->mfi_data_dma.ld_buf); 583 584 out: 585 lmrc_put_dcmd(lmrc, mfi); 586 return (ret); 587 } 588 589 /* 590 * lmrc_raid_aen_handler 591 * 592 * Handle AENs with locale code LMRC_EVT_LOCALE_LD. If the LD configuration 593 * changed, update the LD list and target map. 594 */ 595 int 596 lmrc_raid_aen_handler(lmrc_t *lmrc, lmrc_evt_t *evt) 597 { 598 int ret = DDI_SUCCESS; 599 600 switch (evt->evt_code) { 601 case LMRC_EVT_LD_CC_STARTED: 602 case LMRC_EVT_LD_CC_PROGRESS: 603 case LMRC_EVT_LD_CC_COMPLETE: 604 /* 605 * Consistency Check. I/O is possible during consistency check, 606 * so there's no need to do anything. 607 */ 608 break; 609 610 case LMRC_EVT_LD_FAST_INIT_STARTED: 611 case LMRC_EVT_LD_FULL_INIT_STARTED: 612 /* 613 * A LD initialization process has been started. 614 */ 615 ret = lmrc_get_ld_list(lmrc); 616 break; 617 618 case LMRC_EVT_LD_BG_INIT_PROGRESS: 619 case LMRC_EVT_LD_INIT_PROGRESS: 620 /* 621 * FULL INIT reports these for every percent of completion. 622 * Ignore. 623 */ 624 break; 625 626 case LMRC_EVT_LD_INIT_ABORTED: 627 case LMRC_EVT_LD_INIT_COMPLETE: 628 /* 629 * The LD initialization has ended, one way or another. 630 */ 631 ret = lmrc_get_ld_list(lmrc); 632 break; 633 634 case LMRC_EVT_LD_BBT_CLEARED: 635 /* 636 * The Bad Block Table for the LD has been cleared. This usually 637 * follows a INIT_COMPLETE, but may occur in other situations. 638 * Ignore. 639 */ 640 break; 641 642 case LMRC_EVT_LD_PROP_CHANGED: 643 /* 644 * Happens when LD props are changed, such as setting the 645 * "hidden" property. There's little we can do here as we 646 * don't which property changed which way. In any case, 647 * this is usually followed by a HOST BUS SCAN REQD which 648 * will handle any changes. 649 */ 650 break; 651 652 case LMRC_EVT_LD_OFFLINE: 653 /* 654 * Not sure when this happens, but since the LD is offline we 655 * should just remove it from the target map. 656 */ 657 ret = lmrc_get_ld_list(lmrc); 658 break; 659 660 case LMRC_EVT_LD_DELETED: 661 /* 662 * A LD was deleted, remove it from target map. 663 */ 664 ret = lmrc_get_ld_list(lmrc); 665 break; 666 667 case LMRC_EVT_LD_OPTIMAL: 668 /* 669 * There might be several cases when this event occurs, 670 * in particular when a LD is created. In that case it's the 671 * first of several events, so we can ignore it. 672 */ 673 break; 674 675 case LMRC_EVT_LD_CREATED: 676 /* 677 * This is the 2nd event generated when a LD is created, and 678 * it's the one FreeBSD and Linux act on. Add the LD to the 679 * target map. 680 */ 681 ret = lmrc_get_ld_list(lmrc); 682 break; 683 684 case LMRC_EVT_LD_AVAILABLE: 685 /* 686 * This event happens last when a LD is created, but there may 687 * be other scenarios where this occurs. Ignore it for now. 688 */ 689 break; 690 691 case LMRC_EVT_LD_STATE_CHANGE: 692 /* 693 * Not sure when this happens, but updating the LD list is 694 * probably a good idea. 695 */ 696 ret = lmrc_get_ld_list(lmrc); 697 break; 698 699 default: 700 ret = DDI_FAILURE; 701 } 702 703 return (ret); 704 } 705 706 int 707 lmrc_raid_attach(dev_info_t *dip) 708 { 709 scsi_hba_tran_t *tran = ddi_get_driver_private(dip); 710 dev_info_t *pdip = ddi_get_parent(dip); 711 lmrc_t *lmrc = ddi_get_soft_state(lmrc_state, ddi_get_instance(pdip)); 712 int ret; 713 714 VERIFY(tran != NULL); 715 VERIFY(lmrc != NULL); 716 717 if (lmrc->l_fw_fault) 718 return (DDI_FAILURE); 719 720 tran->tran_hba_private = lmrc; 721 lmrc->l_raid_dip = dip; 722 723 ret = scsi_hba_tgtmap_create(dip, SCSI_TM_FULLSET, MICROSEC, 724 2 * MICROSEC, lmrc, lmrc_raid_tgt_activate_cb, 725 lmrc_raid_tgt_deactivate_cb, &lmrc->l_raid_tgtmap); 726 if (ret != DDI_SUCCESS) 727 return (ret); 728 729 ret = lmrc_setup_raidmap(lmrc); 730 if (ret != DDI_SUCCESS) { 731 dev_err(lmrc->l_dip, CE_WARN, "!RAID map setup failed."); 732 return (DDI_FAILURE); 733 } 734 735 ret = lmrc_get_ld_list(lmrc); 736 if (ret != DDI_SUCCESS) { 737 dev_err(lmrc->l_dip, CE_WARN, "!Failed to get LD list."); 738 return (ret); 739 } 740 741 return (DDI_SUCCESS); 742 } 743 744 int 745 lmrc_raid_detach(dev_info_t *dip) 746 { 747 dev_info_t *pdip = ddi_get_parent(dip); 748 lmrc_t *lmrc = ddi_get_soft_state(lmrc_state, ddi_get_instance(pdip)); 749 750 VERIFY(lmrc != NULL); 751 752 if (lmrc->l_raid_tgtmap != NULL) { 753 scsi_hba_tgtmap_destroy(lmrc->l_raid_tgtmap); 754 lmrc->l_raid_tgtmap = NULL; 755 } 756 757 lmrc->l_raid_dip = NULL; 758 759 return (DDI_SUCCESS); 760 } 761