1 /*- 2 * Copyright (c) 2011-2015 LSI Corp. 3 * Copyright (c) 2013-2015 Avago Technologies 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 * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 /* TODO Move headers to mpsvar */ 34 #include <sys/types.h> 35 #include <sys/param.h> 36 #include <sys/lock.h> 37 #include <sys/mutex.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/kthread.h> 42 #include <sys/taskqueue.h> 43 #include <sys/bus.h> 44 #include <sys/endian.h> 45 #include <sys/sysctl.h> 46 #include <sys/sbuf.h> 47 #include <sys/eventhandler.h> 48 #include <sys/uio.h> 49 #include <machine/bus.h> 50 #include <machine/resource.h> 51 #include <dev/mps/mpi/mpi2_type.h> 52 #include <dev/mps/mpi/mpi2.h> 53 #include <dev/mps/mpi/mpi2_ioc.h> 54 #include <dev/mps/mpi/mpi2_sas.h> 55 #include <dev/mps/mpi/mpi2_cnfg.h> 56 #include <dev/mps/mpi/mpi2_init.h> 57 #include <dev/mps/mpi/mpi2_tool.h> 58 #include <dev/mps/mps_ioctl.h> 59 #include <dev/mps/mpsvar.h> 60 #include <dev/mps/mps_mapping.h> 61 62 /** 63 * _mapping_clear_map_entry - Clear a particular mapping entry. 64 * @map_entry: map table entry 65 * 66 * Returns nothing. 67 */ 68 static inline void 69 _mapping_clear_map_entry(struct dev_mapping_table *map_entry) 70 { 71 map_entry->physical_id = 0; 72 map_entry->device_info = 0; 73 map_entry->phy_bits = 0; 74 map_entry->dpm_entry_num = MPS_DPM_BAD_IDX; 75 map_entry->dev_handle = 0; 76 map_entry->id = -1; 77 map_entry->missing_count = 0; 78 map_entry->init_complete = 0; 79 map_entry->TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; 80 } 81 82 /** 83 * _mapping_clear_enc_entry - Clear a particular enclosure table entry. 84 * @enc_entry: enclosure table entry 85 * 86 * Returns nothing. 87 */ 88 static inline void 89 _mapping_clear_enc_entry(struct enc_mapping_table *enc_entry) 90 { 91 enc_entry->enclosure_id = 0; 92 enc_entry->start_index = MPS_MAPTABLE_BAD_IDX; 93 enc_entry->phy_bits = 0; 94 enc_entry->dpm_entry_num = MPS_DPM_BAD_IDX; 95 enc_entry->enc_handle = 0; 96 enc_entry->num_slots = 0; 97 enc_entry->start_slot = 0; 98 enc_entry->missing_count = 0; 99 enc_entry->removal_flag = 0; 100 enc_entry->skip_search = 0; 101 enc_entry->init_complete = 0; 102 } 103 104 /** 105 * _mapping_commit_enc_entry - write a particular enc entry in DPM page0. 106 * @sc: per adapter object 107 * @enc_entry: enclosure table entry 108 * 109 * Returns 0 for success, non-zero for failure. 110 */ 111 static int 112 _mapping_commit_enc_entry(struct mps_softc *sc, 113 struct enc_mapping_table *et_entry) 114 { 115 Mpi2DriverMap0Entry_t *dpm_entry; 116 struct dev_mapping_table *mt_entry; 117 Mpi2ConfigReply_t mpi_reply; 118 Mpi2DriverMappingPage0_t config_page; 119 120 if (!sc->is_dpm_enable) 121 return 0; 122 123 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 124 memcpy(&config_page.Header, (u8 *) sc->dpm_pg0, 125 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 126 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 127 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 128 dpm_entry += et_entry->dpm_entry_num; 129 dpm_entry->PhysicalIdentifier.Low = 130 ( 0xFFFFFFFF & et_entry->enclosure_id); 131 dpm_entry->PhysicalIdentifier.High = 132 ( et_entry->enclosure_id >> 32); 133 mt_entry = &sc->mapping_table[et_entry->start_index]; 134 dpm_entry->DeviceIndex = htole16(mt_entry->id); 135 dpm_entry->MappingInformation = et_entry->num_slots; 136 dpm_entry->MappingInformation <<= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 137 dpm_entry->MappingInformation |= et_entry->missing_count; 138 dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation); 139 dpm_entry->PhysicalBitsMapping = htole32(et_entry->phy_bits); 140 dpm_entry->Reserved1 = 0; 141 142 mps_dprint(sc, MPS_MAPPING, "%s: Writing DPM entry %d for enclosure.\n", 143 __func__, et_entry->dpm_entry_num); 144 memcpy(&config_page.Entry, (u8 *)dpm_entry, 145 sizeof(Mpi2DriverMap0Entry_t)); 146 if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 147 et_entry->dpm_entry_num)) { 148 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Write of DPM " 149 "entry %d for enclosure failed.\n", __func__, 150 et_entry->dpm_entry_num); 151 dpm_entry->MappingInformation = le16toh(dpm_entry-> 152 MappingInformation); 153 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 154 dpm_entry->PhysicalBitsMapping = 155 le32toh(dpm_entry->PhysicalBitsMapping); 156 return -1; 157 } 158 dpm_entry->MappingInformation = le16toh(dpm_entry-> 159 MappingInformation); 160 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 161 dpm_entry->PhysicalBitsMapping = 162 le32toh(dpm_entry->PhysicalBitsMapping); 163 return 0; 164 } 165 166 /** 167 * _mapping_commit_map_entry - write a particular map table entry in DPM page0. 168 * @sc: per adapter object 169 * @mt_entry: mapping table entry 170 * 171 * Returns 0 for success, non-zero for failure. 172 */ 173 174 static int 175 _mapping_commit_map_entry(struct mps_softc *sc, 176 struct dev_mapping_table *mt_entry) 177 { 178 Mpi2DriverMap0Entry_t *dpm_entry; 179 Mpi2ConfigReply_t mpi_reply; 180 Mpi2DriverMappingPage0_t config_page; 181 182 if (!sc->is_dpm_enable) 183 return 0; 184 185 /* 186 * It's possible that this Map Entry points to a BAD DPM index. This 187 * can happen if the Map Entry is a for a missing device and the DPM 188 * entry that was being used by this device is now being used by some 189 * new device. So, check for a BAD DPM index and just return if so. 190 */ 191 if (mt_entry->dpm_entry_num == MPS_DPM_BAD_IDX) { 192 mps_dprint(sc, MPS_MAPPING, "%s: DPM entry location for target " 193 "%d is invalid. DPM will not be written.\n", __func__, 194 mt_entry->id); 195 return 0; 196 } 197 198 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 199 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 200 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 201 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *) sc->dpm_pg0 + 202 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 203 dpm_entry = dpm_entry + mt_entry->dpm_entry_num; 204 dpm_entry->PhysicalIdentifier.Low = (0xFFFFFFFF & 205 mt_entry->physical_id); 206 dpm_entry->PhysicalIdentifier.High = (mt_entry->physical_id >> 32); 207 dpm_entry->DeviceIndex = htole16(mt_entry->id); 208 dpm_entry->MappingInformation = htole16(mt_entry->missing_count); 209 dpm_entry->PhysicalBitsMapping = 0; 210 dpm_entry->Reserved1 = 0; 211 memcpy(&config_page.Entry, (u8 *)dpm_entry, 212 sizeof(Mpi2DriverMap0Entry_t)); 213 214 mps_dprint(sc, MPS_MAPPING, "%s: Writing DPM entry %d for target %d.\n", 215 __func__, mt_entry->dpm_entry_num, mt_entry->id); 216 if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 217 mt_entry->dpm_entry_num)) { 218 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Write of DPM " 219 "entry %d for target %d failed.\n", __func__, 220 mt_entry->dpm_entry_num, mt_entry->id); 221 dpm_entry->MappingInformation = le16toh(dpm_entry-> 222 MappingInformation); 223 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 224 return -1; 225 } 226 227 dpm_entry->MappingInformation = le16toh(dpm_entry->MappingInformation); 228 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 229 return 0; 230 } 231 232 /** 233 * _mapping_get_ir_maprange - get start and end index for IR map range. 234 * @sc: per adapter object 235 * @start_idx: place holder for start index 236 * @end_idx: place holder for end index 237 * 238 * The IR volumes can be mapped either at start or end of the mapping table 239 * this function gets the detail of where IR volume mapping starts and ends 240 * in the device mapping table 241 * 242 * Returns nothing. 243 */ 244 static void 245 _mapping_get_ir_maprange(struct mps_softc *sc, u32 *start_idx, u32 *end_idx) 246 { 247 u16 volume_mapping_flags; 248 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 249 250 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 251 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 252 if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) { 253 *start_idx = 0; 254 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 255 *start_idx = 1; 256 } else 257 *start_idx = sc->max_devices - sc->max_volumes; 258 *end_idx = *start_idx + sc->max_volumes - 1; 259 } 260 261 /** 262 * _mapping_get_enc_idx_from_id - get enclosure index from enclosure ID 263 * @sc: per adapter object 264 * @enc_id: enclosure logical identifier 265 * 266 * Returns the index of enclosure entry on success or bad index. 267 */ 268 static u8 269 _mapping_get_enc_idx_from_id(struct mps_softc *sc, u64 enc_id, 270 u64 phy_bits) 271 { 272 struct enc_mapping_table *et_entry; 273 u8 enc_idx = 0; 274 275 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 276 et_entry = &sc->enclosure_table[enc_idx]; 277 if ((et_entry->enclosure_id == le64toh(enc_id)) && 278 (!et_entry->phy_bits || (et_entry->phy_bits & 279 le32toh(phy_bits)))) 280 return enc_idx; 281 } 282 return MPS_ENCTABLE_BAD_IDX; 283 } 284 285 /** 286 * _mapping_get_enc_idx_from_handle - get enclosure index from handle 287 * @sc: per adapter object 288 * @enc_id: enclosure handle 289 * 290 * Returns the index of enclosure entry on success or bad index. 291 */ 292 static u8 293 _mapping_get_enc_idx_from_handle(struct mps_softc *sc, u16 handle) 294 { 295 struct enc_mapping_table *et_entry; 296 u8 enc_idx = 0; 297 298 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 299 et_entry = &sc->enclosure_table[enc_idx]; 300 if (et_entry->missing_count) 301 continue; 302 if (et_entry->enc_handle == handle) 303 return enc_idx; 304 } 305 return MPS_ENCTABLE_BAD_IDX; 306 } 307 308 /** 309 * _mapping_get_high_missing_et_idx - get missing enclosure index 310 * @sc: per adapter object 311 * 312 * Search through the enclosure table and identifies the enclosure entry 313 * with high missing count and returns it's index 314 * 315 * Returns the index of enclosure entry on success or bad index. 316 */ 317 static u8 318 _mapping_get_high_missing_et_idx(struct mps_softc *sc) 319 { 320 struct enc_mapping_table *et_entry; 321 u8 high_missing_count = 0; 322 u8 enc_idx, high_idx = MPS_ENCTABLE_BAD_IDX; 323 324 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 325 et_entry = &sc->enclosure_table[enc_idx]; 326 if ((et_entry->missing_count > high_missing_count) && 327 !et_entry->skip_search) { 328 high_missing_count = et_entry->missing_count; 329 high_idx = enc_idx; 330 } 331 } 332 return high_idx; 333 } 334 335 /** 336 * _mapping_get_high_missing_mt_idx - get missing map table index 337 * @sc: per adapter object 338 * 339 * Search through the map table and identifies the device entry 340 * with high missing count and returns it's index 341 * 342 * Returns the index of map table entry on success or bad index. 343 */ 344 static u32 345 _mapping_get_high_missing_mt_idx(struct mps_softc *sc) 346 { 347 u32 map_idx, high_idx = MPS_MAPTABLE_BAD_IDX; 348 u8 high_missing_count = 0; 349 u32 start_idx, end_idx, start_idx_ir, end_idx_ir; 350 struct dev_mapping_table *mt_entry; 351 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 352 353 start_idx = 0; 354 start_idx_ir = 0; 355 end_idx_ir = 0; 356 end_idx = sc->max_devices; 357 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 358 start_idx = 1; 359 if (sc->ir_firmware) { 360 _mapping_get_ir_maprange(sc, &start_idx_ir, &end_idx_ir); 361 if (start_idx == start_idx_ir) 362 start_idx = end_idx_ir + 1; 363 else 364 end_idx = start_idx_ir; 365 } 366 mt_entry = &sc->mapping_table[start_idx]; 367 for (map_idx = start_idx; map_idx < end_idx; map_idx++, mt_entry++) { 368 if (mt_entry->missing_count > high_missing_count) { 369 high_missing_count = mt_entry->missing_count; 370 high_idx = map_idx; 371 } 372 } 373 return high_idx; 374 } 375 376 /** 377 * _mapping_get_ir_mt_idx_from_wwid - get map table index from volume WWID 378 * @sc: per adapter object 379 * @wwid: world wide unique ID of the volume 380 * 381 * Returns the index of map table entry on success or bad index. 382 */ 383 static u32 384 _mapping_get_ir_mt_idx_from_wwid(struct mps_softc *sc, u64 wwid) 385 { 386 u32 start_idx, end_idx, map_idx; 387 struct dev_mapping_table *mt_entry; 388 389 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 390 mt_entry = &sc->mapping_table[start_idx]; 391 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 392 if (mt_entry->physical_id == wwid) 393 return map_idx; 394 395 return MPS_MAPTABLE_BAD_IDX; 396 } 397 398 /** 399 * _mapping_get_mt_idx_from_id - get map table index from a device ID 400 * @sc: per adapter object 401 * @dev_id: device identifer (SAS Address) 402 * 403 * Returns the index of map table entry on success or bad index. 404 */ 405 static u32 406 _mapping_get_mt_idx_from_id(struct mps_softc *sc, u64 dev_id) 407 { 408 u32 map_idx; 409 struct dev_mapping_table *mt_entry; 410 411 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 412 mt_entry = &sc->mapping_table[map_idx]; 413 if (mt_entry->physical_id == dev_id) 414 return map_idx; 415 } 416 return MPS_MAPTABLE_BAD_IDX; 417 } 418 419 /** 420 * _mapping_get_ir_mt_idx_from_handle - get map table index from volume handle 421 * @sc: per adapter object 422 * @wwid: volume device handle 423 * 424 * Returns the index of map table entry on success or bad index. 425 */ 426 static u32 427 _mapping_get_ir_mt_idx_from_handle(struct mps_softc *sc, u16 volHandle) 428 { 429 u32 start_idx, end_idx, map_idx; 430 struct dev_mapping_table *mt_entry; 431 432 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 433 mt_entry = &sc->mapping_table[start_idx]; 434 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 435 if (mt_entry->dev_handle == volHandle) 436 return map_idx; 437 438 return MPS_MAPTABLE_BAD_IDX; 439 } 440 441 /** 442 * _mapping_get_mt_idx_from_handle - get map table index from handle 443 * @sc: per adapter object 444 * @dev_id: device handle 445 * 446 * Returns the index of map table entry on success or bad index. 447 */ 448 static u32 449 _mapping_get_mt_idx_from_handle(struct mps_softc *sc, u16 handle) 450 { 451 u32 map_idx; 452 struct dev_mapping_table *mt_entry; 453 454 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 455 mt_entry = &sc->mapping_table[map_idx]; 456 if (mt_entry->dev_handle == handle) 457 return map_idx; 458 } 459 return MPS_MAPTABLE_BAD_IDX; 460 } 461 462 /** 463 * _mapping_get_free_ir_mt_idx - get first free index for a volume 464 * @sc: per adapter object 465 * 466 * Search through mapping table for free index for a volume and if no free 467 * index then looks for a volume with high mapping index 468 * 469 * Returns the index of map table entry on success or bad index. 470 */ 471 static u32 472 _mapping_get_free_ir_mt_idx(struct mps_softc *sc) 473 { 474 u8 high_missing_count = 0; 475 u32 start_idx, end_idx, map_idx; 476 u32 high_idx = MPS_MAPTABLE_BAD_IDX; 477 struct dev_mapping_table *mt_entry; 478 479 /* 480 * The IN_USE flag should be clear if the entry is available to use. 481 * This flag is cleared on initialization and and when a volume is 482 * deleted. All other times this flag should be set. If, for some 483 * reason, a free entry cannot be found, look for the entry with the 484 * highest missing count just in case there is one. 485 */ 486 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 487 488 mt_entry = &sc->mapping_table[start_idx]; 489 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 490 if (!(mt_entry->device_info & MPS_MAP_IN_USE)) 491 return map_idx; 492 493 if (mt_entry->missing_count > high_missing_count) { 494 high_missing_count = mt_entry->missing_count; 495 high_idx = map_idx; 496 } 497 } 498 499 if (high_idx == MPS_MAPTABLE_BAD_IDX) { 500 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Could not find a " 501 "free entry in the mapping table for a Volume. The mapping " 502 "table is probably corrupt.\n", __func__); 503 } 504 505 return high_idx; 506 } 507 508 /** 509 * _mapping_get_free_mt_idx - get first free index for a device 510 * @sc: per adapter object 511 * @start_idx: offset in the table to start search 512 * 513 * Returns the index of map table entry on success or bad index. 514 */ 515 static u32 516 _mapping_get_free_mt_idx(struct mps_softc *sc, u32 start_idx) 517 { 518 u32 map_idx, max_idx = sc->max_devices; 519 struct dev_mapping_table *mt_entry = &sc->mapping_table[start_idx]; 520 u16 volume_mapping_flags; 521 522 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 523 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 524 if (sc->ir_firmware && (volume_mapping_flags == 525 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) 526 max_idx -= sc->max_volumes; 527 528 for (map_idx = start_idx; map_idx < max_idx; map_idx++, mt_entry++) 529 if (!(mt_entry->device_info & (MPS_MAP_IN_USE | 530 MPS_DEV_RESERVED))) 531 return map_idx; 532 533 return MPS_MAPTABLE_BAD_IDX; 534 } 535 536 /** 537 * _mapping_get_dpm_idx_from_id - get DPM index from ID 538 * @sc: per adapter object 539 * @id: volume WWID or enclosure ID or device ID 540 * 541 * Returns the index of DPM entry on success or bad index. 542 */ 543 static u16 544 _mapping_get_dpm_idx_from_id(struct mps_softc *sc, u64 id, u32 phy_bits) 545 { 546 u16 entry_num; 547 uint64_t PhysicalIdentifier; 548 Mpi2DriverMap0Entry_t *dpm_entry; 549 550 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 551 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 552 PhysicalIdentifier = dpm_entry->PhysicalIdentifier.High; 553 PhysicalIdentifier = (PhysicalIdentifier << 32) | 554 dpm_entry->PhysicalIdentifier.Low; 555 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 556 dpm_entry++) 557 if ((id == PhysicalIdentifier) && 558 (!phy_bits || !dpm_entry->PhysicalBitsMapping || 559 (phy_bits & dpm_entry->PhysicalBitsMapping))) 560 return entry_num; 561 562 return MPS_DPM_BAD_IDX; 563 } 564 565 566 /** 567 * _mapping_get_free_dpm_idx - get first available DPM index 568 * @sc: per adapter object 569 * 570 * Returns the index of DPM entry on success or bad index. 571 */ 572 static u32 573 _mapping_get_free_dpm_idx(struct mps_softc *sc) 574 { 575 u16 entry_num; 576 Mpi2DriverMap0Entry_t *dpm_entry; 577 u16 current_entry = MPS_DPM_BAD_IDX, missing_cnt, high_missing_cnt = 0; 578 u64 physical_id; 579 struct dev_mapping_table *mt_entry; 580 u32 map_idx; 581 582 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 583 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 584 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 585 dpm_entry += entry_num; 586 missing_cnt = dpm_entry->MappingInformation & 587 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 588 589 /* 590 * If entry is used and not missing, then this entry can't be 591 * used. Look at next one. 592 */ 593 if (sc->dpm_entry_used[entry_num] && !missing_cnt) 594 continue; 595 596 /* 597 * If this entry is not used at all, then the missing count 598 * doesn't matter. Just use this one. Otherwise, keep looking 599 * and make sure the entry with the highest missing count is 600 * used. 601 */ 602 if (!sc->dpm_entry_used[entry_num]) { 603 current_entry = entry_num; 604 break; 605 } 606 if ((current_entry == MPS_DPM_BAD_IDX) || 607 (missing_cnt > high_missing_cnt)) { 608 current_entry = entry_num; 609 high_missing_cnt = missing_cnt; 610 } 611 } 612 613 /* 614 * If an entry has been found to use and it's already marked as used 615 * it means that some device was already using this entry but it's 616 * missing, and that means that the connection between the missing 617 * device's DPM entry and the mapping table needs to be cleared. To do 618 * this, use the Physical ID of the old device still in the DPM entry 619 * to find its mapping table entry, then mark its DPM entry as BAD. 620 */ 621 if ((current_entry != MPS_DPM_BAD_IDX) && 622 sc->dpm_entry_used[current_entry]) { 623 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 624 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 625 dpm_entry += current_entry; 626 physical_id = dpm_entry->PhysicalIdentifier.High; 627 physical_id = (physical_id << 32) | 628 dpm_entry->PhysicalIdentifier.Low; 629 map_idx = _mapping_get_mt_idx_from_id(sc, physical_id); 630 if (map_idx != MPS_MAPTABLE_BAD_IDX) { 631 mt_entry = &sc->mapping_table[map_idx]; 632 mt_entry->dpm_entry_num = MPS_DPM_BAD_IDX; 633 } 634 } 635 return current_entry; 636 } 637 638 /** 639 * _mapping_update_ir_missing_cnt - Updates missing count for a volume 640 * @sc: per adapter object 641 * @map_idx: map table index of the volume 642 * @element: IR configuration change element 643 * @wwid: IR volume ID. 644 * 645 * Updates the missing count in the map table and in the DPM entry for a volume 646 * 647 * Returns nothing. 648 */ 649 static void 650 _mapping_update_ir_missing_cnt(struct mps_softc *sc, u32 map_idx, 651 Mpi2EventIrConfigElement_t *element, u64 wwid) 652 { 653 struct dev_mapping_table *mt_entry; 654 u8 missing_cnt, reason = element->ReasonCode, update_dpm = 1; 655 u16 dpm_idx; 656 Mpi2DriverMap0Entry_t *dpm_entry; 657 658 /* 659 * Depending on the reason code, update the missing count. Always set 660 * the init_complete flag when here, so just do it first. That flag is 661 * used for volumes to make sure that the DPM entry has been updated. 662 * When a volume is deleted, clear the map entry's IN_USE flag so that 663 * the entry can be used again if another volume is created. Also clear 664 * its dev_handle entry so that other functions can't find this volume 665 * by the handle, since it's not defined any longer. 666 */ 667 mt_entry = &sc->mapping_table[map_idx]; 668 mt_entry->init_complete = 1; 669 if ((reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) || 670 (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) { 671 mt_entry->missing_count = 0; 672 } else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 673 if (mt_entry->missing_count < MPS_MAX_MISSING_COUNT) 674 mt_entry->missing_count++; 675 676 mt_entry->device_info &= ~MPS_MAP_IN_USE; 677 mt_entry->dev_handle = 0; 678 } 679 680 /* 681 * If persistent mapping is enabled, update the DPM with the new missing 682 * count for the volume. If the DPM index is bad, get a free one. If 683 * it's bad for a volume that's being deleted do nothing because that 684 * volume doesn't have a DPM entry. 685 */ 686 if (!sc->is_dpm_enable) 687 return; 688 dpm_idx = mt_entry->dpm_entry_num; 689 if (dpm_idx == MPS_DPM_BAD_IDX) { 690 if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) 691 { 692 mps_dprint(sc, MPS_MAPPING, "%s: Volume being deleted " 693 "is not in DPM so DPM missing count will not be " 694 "updated.\n", __func__); 695 return; 696 } 697 } 698 if (dpm_idx == MPS_DPM_BAD_IDX) 699 dpm_idx = _mapping_get_free_dpm_idx(sc); 700 701 /* 702 * Got the DPM entry for the volume or found a free DPM entry if this is 703 * a new volume. Check if the current information is outdated. 704 */ 705 if (dpm_idx != MPS_DPM_BAD_IDX) { 706 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 707 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 708 dpm_entry += dpm_idx; 709 missing_cnt = dpm_entry->MappingInformation & 710 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 711 if ((mt_entry->physical_id == 712 le64toh(((u64)dpm_entry->PhysicalIdentifier.High << 32) | 713 (u64)dpm_entry->PhysicalIdentifier.Low)) && (missing_cnt == 714 mt_entry->missing_count)) { 715 mps_dprint(sc, MPS_MAPPING, "%s: DPM entry for volume " 716 "with target ID %d does not require an update.\n", 717 __func__, mt_entry->id); 718 update_dpm = 0; 719 } 720 } 721 722 /* 723 * Update the volume's persistent info if it's new or the ID or missing 724 * count has changed. If a good DPM index has not been found by now, 725 * there is no space left in the DPM table. 726 */ 727 if ((dpm_idx != MPS_DPM_BAD_IDX) && update_dpm) { 728 mps_dprint(sc, MPS_MAPPING, "%s: Update DPM entry for volume " 729 "with target ID %d.\n", __func__, mt_entry->id); 730 731 mt_entry->dpm_entry_num = dpm_idx; 732 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 733 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 734 dpm_entry += dpm_idx; 735 dpm_entry->PhysicalIdentifier.Low = 736 (0xFFFFFFFF & mt_entry->physical_id); 737 dpm_entry->PhysicalIdentifier.High = 738 (mt_entry->physical_id >> 32); 739 dpm_entry->DeviceIndex = map_idx; 740 dpm_entry->MappingInformation = mt_entry->missing_count; 741 dpm_entry->PhysicalBitsMapping = 0; 742 dpm_entry->Reserved1 = 0; 743 sc->dpm_flush_entry[dpm_idx] = 1; 744 sc->dpm_entry_used[dpm_idx] = 1; 745 } else if (dpm_idx == MPS_DPM_BAD_IDX) { 746 mps_dprint(sc, MPS_INFO | MPS_MAPPING, "%s: No space to add an " 747 "entry in the DPM table for volume with target ID %d.\n", 748 __func__, mt_entry->id); 749 } 750 } 751 752 /** 753 * _mapping_add_to_removal_table - add DPM index to the removal table 754 * @sc: per adapter object 755 * @dpm_idx: Index of DPM entry to remove 756 * 757 * Adds a DPM entry number to the removal table. 758 * 759 * Returns nothing. 760 */ 761 static void 762 _mapping_add_to_removal_table(struct mps_softc *sc, u16 dpm_idx) 763 { 764 struct map_removal_table *remove_entry; 765 u32 i; 766 767 /* 768 * This is only used to remove entries from the DPM in the controller. 769 * If DPM is not enabled, just return. 770 */ 771 if (!sc->is_dpm_enable) 772 return; 773 774 /* 775 * Find the first available removal_table entry and add the new entry 776 * there. 777 */ 778 remove_entry = sc->removal_table; 779 780 for (i = 0; i < sc->max_devices; i++, remove_entry++) { 781 if (remove_entry->dpm_entry_num != MPS_DPM_BAD_IDX) 782 continue; 783 784 mps_dprint(sc, MPS_MAPPING, "%s: Adding DPM entry %d to table " 785 "for removal.\n", __func__, dpm_idx); 786 remove_entry->dpm_entry_num = dpm_idx; 787 break; 788 } 789 790 } 791 792 /** 793 * _mapping_update_missing_count - Update missing count for a device 794 * @sc: per adapter object 795 * @topo_change: Topology change event entry 796 * 797 * Increment the missing count in the mapping table for a device that is not 798 * responding. If Persitent Mapping is used, increment the DPM entry as well. 799 * Currently, this function only increments the missing count if the device 800 * goes missing, so after initialization has completed. This means that the 801 * missing count can only go from 0 to 1 here. The missing count is incremented 802 * during initialization as well, so that's where a target's missing count can 803 * go past 1. 804 * 805 * Returns nothing. 806 */ 807 static void 808 _mapping_update_missing_count(struct mps_softc *sc, 809 struct _map_topology_change *topo_change) 810 { 811 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 812 u8 entry; 813 struct _map_phy_change *phy_change; 814 u32 map_idx; 815 struct dev_mapping_table *mt_entry; 816 Mpi2DriverMap0Entry_t *dpm_entry; 817 818 for (entry = 0; entry < topo_change->num_entries; entry++) { 819 phy_change = &topo_change->phy_details[entry]; 820 if (!phy_change->dev_handle || (phy_change->reason != 821 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)) 822 continue; 823 map_idx = _mapping_get_mt_idx_from_handle(sc, phy_change-> 824 dev_handle); 825 phy_change->is_processed = 1; 826 if (map_idx == MPS_MAPTABLE_BAD_IDX) { 827 mps_dprint(sc, MPS_INFO | MPS_MAPPING, "%s: device is " 828 "already removed from mapping table\n", __func__); 829 continue; 830 } 831 mt_entry = &sc->mapping_table[map_idx]; 832 if (mt_entry->missing_count < MPS_MAX_MISSING_COUNT) 833 mt_entry->missing_count++; 834 835 /* 836 * When using Enc/Slot mapping, when a device is removed, it's 837 * mapping table information should be cleared. Otherwise, the 838 * target ID will be incorrect if this same device is re-added 839 * to a different slot. 840 */ 841 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 842 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 843 _mapping_clear_map_entry(mt_entry); 844 } 845 846 /* 847 * When using device mapping, update the missing count in the 848 * DPM entry, but only if the missing count has changed. 849 */ 850 if (((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 851 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) && 852 sc->is_dpm_enable && 853 mt_entry->dpm_entry_num != MPS_DPM_BAD_IDX) { 854 dpm_entry = 855 (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 856 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 857 dpm_entry += mt_entry->dpm_entry_num; 858 if (dpm_entry->MappingInformation != 859 mt_entry->missing_count) { 860 dpm_entry->MappingInformation = 861 mt_entry->missing_count; 862 sc->dpm_flush_entry[mt_entry->dpm_entry_num] = 863 1; 864 } 865 } 866 } 867 } 868 869 /** 870 * _mapping_find_enc_map_space -find map table entries for enclosure 871 * @sc: per adapter object 872 * @et_entry: enclosure entry 873 * 874 * Search through the mapping table defragment it and provide contiguous 875 * space in map table for a particular enclosure entry 876 * 877 * Returns start index in map table or bad index. 878 */ 879 static u32 880 _mapping_find_enc_map_space(struct mps_softc *sc, 881 struct enc_mapping_table *et_entry) 882 { 883 u16 vol_mapping_flags; 884 u32 skip_count, end_of_table, map_idx, enc_idx; 885 u16 num_found; 886 u32 start_idx = MPS_MAPTABLE_BAD_IDX; 887 struct dev_mapping_table *mt_entry; 888 struct enc_mapping_table *enc_entry; 889 unsigned char done_flag = 0, found_space; 890 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 891 892 skip_count = sc->num_rsvd_entries; 893 num_found = 0; 894 895 vol_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 896 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 897 898 /* 899 * The end of the mapping table depends on where volumes are kept, if 900 * IR is enabled. 901 */ 902 if (!sc->ir_firmware) 903 end_of_table = sc->max_devices; 904 else if (vol_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) 905 end_of_table = sc->max_devices; 906 else 907 end_of_table = sc->max_devices - sc->max_volumes; 908 909 /* 910 * The skip_count is the number of entries that are reserved at the 911 * beginning of the mapping table. But, it does not include the number 912 * of Physical IDs that are reserved for direct attached devices. Look 913 * through the mapping table after these reserved entries to see if 914 * the devices for this enclosure are already mapped. The PHY bit check 915 * is used to make sure that at least one PHY bit is common between the 916 * enclosure and the device that is already mapped. 917 */ 918 mps_dprint(sc, MPS_MAPPING, "%s: Looking for space in the mapping " 919 "table for added enclosure.\n", __func__); 920 for (map_idx = (max_num_phy_ids + skip_count); 921 map_idx < end_of_table; map_idx++) { 922 mt_entry = &sc->mapping_table[map_idx]; 923 if ((et_entry->enclosure_id == mt_entry->physical_id) && 924 (!mt_entry->phy_bits || (mt_entry->phy_bits & 925 et_entry->phy_bits))) { 926 num_found += 1; 927 if (num_found == et_entry->num_slots) { 928 start_idx = (map_idx - num_found) + 1; 929 mps_dprint(sc, MPS_MAPPING, "%s: Found space " 930 "in the mapping for enclosure at map index " 931 "%d.\n", __func__, start_idx); 932 return start_idx; 933 } 934 } else 935 num_found = 0; 936 } 937 938 /* 939 * If the enclosure's devices are not mapped already, look for 940 * contiguous entries in the mapping table that are not reserved. If 941 * enough entries are found, return the starting index for that space. 942 */ 943 num_found = 0; 944 for (map_idx = (max_num_phy_ids + skip_count); 945 map_idx < end_of_table; map_idx++) { 946 mt_entry = &sc->mapping_table[map_idx]; 947 if (!(mt_entry->device_info & MPS_DEV_RESERVED)) { 948 num_found += 1; 949 if (num_found == et_entry->num_slots) { 950 start_idx = (map_idx - num_found) + 1; 951 mps_dprint(sc, MPS_MAPPING, "%s: Found space " 952 "in the mapping for enclosure at map index " 953 "%d.\n", __func__, start_idx); 954 return start_idx; 955 } 956 } else 957 num_found = 0; 958 } 959 960 /* 961 * If here, it means that not enough space in the mapping table was 962 * found to support this enclosure, so go through the enclosure table to 963 * see if any enclosure entries have a missing count. If so, get the 964 * enclosure with the highest missing count and check it to see if there 965 * is enough space for the new enclosure. 966 */ 967 while (!done_flag) { 968 enc_idx = _mapping_get_high_missing_et_idx(sc); 969 if (enc_idx == MPS_ENCTABLE_BAD_IDX) { 970 mps_dprint(sc, MPS_MAPPING, "%s: Not enough space was " 971 "found in the mapping for the added enclosure.\n", 972 __func__); 973 return MPS_MAPTABLE_BAD_IDX; 974 } 975 976 /* 977 * Found a missing enclosure. Set the skip_search flag so this 978 * enclosure is not checked again for a high missing count if 979 * the loop continues. This way, all missing enclosures can 980 * have their space added together to find enough space in the 981 * mapping table for the added enclosure. The space must be 982 * contiguous. 983 */ 984 mps_dprint(sc, MPS_MAPPING, "%s: Space from a missing " 985 "enclosure was found.\n", __func__); 986 enc_entry = &sc->enclosure_table[enc_idx]; 987 enc_entry->skip_search = 1; 988 989 /* 990 * Unmark all of the missing enclosure's device's reserved 991 * space. These will be remarked as reserved if this missing 992 * enclosure's space is not used. 993 */ 994 mps_dprint(sc, MPS_MAPPING, "%s: Clear the reserved flag for " 995 "all of the map entries for the enclosure.\n", __func__); 996 mt_entry = &sc->mapping_table[enc_entry->start_index]; 997 for (map_idx = enc_entry->start_index; map_idx < 998 (enc_entry->start_index + enc_entry->num_slots); map_idx++, 999 mt_entry++) 1000 mt_entry->device_info &= ~MPS_DEV_RESERVED; 1001 1002 /* 1003 * Now that space has been unreserved, check again to see if 1004 * enough space is available for the new enclosure. 1005 */ 1006 mps_dprint(sc, MPS_MAPPING, "%s: Check if new mapping space is " 1007 "enough for the new enclosure.\n", __func__); 1008 found_space = 0; 1009 num_found = 0; 1010 for (map_idx = (max_num_phy_ids + skip_count); 1011 map_idx < end_of_table; map_idx++) { 1012 mt_entry = &sc->mapping_table[map_idx]; 1013 if (!(mt_entry->device_info & MPS_DEV_RESERVED)) { 1014 num_found += 1; 1015 if (num_found == et_entry->num_slots) { 1016 start_idx = (map_idx - num_found) + 1; 1017 found_space = 1; 1018 break; 1019 } 1020 } else 1021 num_found = 0; 1022 } 1023 if (!found_space) 1024 continue; 1025 1026 /* 1027 * If enough space was found, all of the missing enclosures that 1028 * will be used for the new enclosure must be added to the 1029 * removal table. Then all mappings for the enclosure's devices 1030 * and for the enclosure itself need to be cleared. There may be 1031 * more than one enclosure to add to the removal table and 1032 * clear. 1033 */ 1034 mps_dprint(sc, MPS_MAPPING, "%s: Found space in the mapping " 1035 "for enclosure at map index %d.\n", __func__, start_idx); 1036 for (map_idx = start_idx; map_idx < (start_idx + num_found); 1037 map_idx++) { 1038 enc_entry = sc->enclosure_table; 1039 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1040 enc_idx++, enc_entry++) { 1041 if (map_idx < enc_entry->start_index || 1042 map_idx > (enc_entry->start_index + 1043 enc_entry->num_slots)) 1044 continue; 1045 if (!enc_entry->removal_flag) { 1046 mps_dprint(sc, MPS_MAPPING, "%s: " 1047 "Enclosure %d will be removed from " 1048 "the mapping table.\n", __func__, 1049 enc_idx); 1050 enc_entry->removal_flag = 1; 1051 _mapping_add_to_removal_table(sc, 1052 enc_entry->dpm_entry_num); 1053 } 1054 mt_entry = &sc->mapping_table[map_idx]; 1055 _mapping_clear_map_entry(mt_entry); 1056 if (map_idx == (enc_entry->start_index + 1057 enc_entry->num_slots - 1)) 1058 _mapping_clear_enc_entry(et_entry); 1059 } 1060 } 1061 1062 /* 1063 * During the search for space for this enclosure, some entries 1064 * in the mapping table may have been unreserved. Go back and 1065 * change all of these to reserved again. Only the enclosures 1066 * with the removal_flag set should be left as unreserved. The 1067 * skip_search flag needs to be cleared as well so that the 1068 * enclosure's space will be looked at the next time space is 1069 * needed. 1070 */ 1071 enc_entry = sc->enclosure_table; 1072 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1073 enc_idx++, enc_entry++) { 1074 if (!enc_entry->removal_flag) { 1075 mps_dprint(sc, MPS_MAPPING, "%s: Reset the " 1076 "reserved flag for all of the map entries " 1077 "for enclosure %d.\n", __func__, enc_idx); 1078 mt_entry = &sc->mapping_table[enc_entry-> 1079 start_index]; 1080 for (map_idx = enc_entry->start_index; map_idx < 1081 (enc_entry->start_index + 1082 enc_entry->num_slots); map_idx++, 1083 mt_entry++) 1084 mt_entry->device_info |= 1085 MPS_DEV_RESERVED; 1086 et_entry->skip_search = 0; 1087 } 1088 } 1089 done_flag = 1; 1090 } 1091 return start_idx; 1092 } 1093 1094 /** 1095 * _mapping_get_dev_info -get information about newly added devices 1096 * @sc: per adapter object 1097 * @topo_change: Topology change event entry 1098 * 1099 * Search through the topology change event list and issues sas device pg0 1100 * requests for the newly added device and reserved entries in tables 1101 * 1102 * Returns nothing 1103 */ 1104 static void 1105 _mapping_get_dev_info(struct mps_softc *sc, 1106 struct _map_topology_change *topo_change) 1107 { 1108 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1109 Mpi2ConfigReply_t mpi_reply; 1110 Mpi2SasDevicePage0_t sas_device_pg0; 1111 u8 entry, enc_idx, phy_idx; 1112 u32 map_idx, index, device_info; 1113 struct _map_phy_change *phy_change, *tmp_phy_change; 1114 uint64_t sas_address; 1115 struct enc_mapping_table *et_entry; 1116 struct dev_mapping_table *mt_entry; 1117 u8 add_code = MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED; 1118 int rc = 1; 1119 1120 for (entry = 0; entry < topo_change->num_entries; entry++) { 1121 phy_change = &topo_change->phy_details[entry]; 1122 if (phy_change->is_processed || !phy_change->dev_handle || 1123 phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) 1124 continue; 1125 1126 if (mps_config_get_sas_device_pg0(sc, &mpi_reply, 1127 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 1128 phy_change->dev_handle)) { 1129 phy_change->is_processed = 1; 1130 continue; 1131 } 1132 1133 /* 1134 * Always get SATA Identify information because this is used 1135 * to determine if Start/Stop Unit should be sent to the drive 1136 * when the system is shutdown. 1137 */ 1138 device_info = le32toh(sas_device_pg0.DeviceInfo); 1139 sas_address = le32toh(sas_device_pg0.SASAddress.High); 1140 sas_address = (sas_address << 32) | 1141 le32toh(sas_device_pg0.SASAddress.Low); 1142 if ((device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1143 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)) { 1144 rc = mpssas_get_sas_address_for_sata_disk(sc, 1145 &sas_address, phy_change->dev_handle, device_info, 1146 &phy_change->is_SATA_SSD); 1147 if (rc) { 1148 mps_dprint(sc, MPS_ERROR, "%s: failed to get " 1149 "disk type (SSD or HDD) and SAS Address " 1150 "for SATA device with handle 0x%04x\n", 1151 __func__, phy_change->dev_handle); 1152 } 1153 } 1154 1155 phy_change->physical_id = sas_address; 1156 phy_change->slot = le16toh(sas_device_pg0.Slot); 1157 phy_change->device_info = device_info; 1158 1159 /* 1160 * When using Enc/Slot mapping, if this device is an enclosure 1161 * make sure that all of its slots can fit into the mapping 1162 * table. 1163 */ 1164 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1165 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1166 /* 1167 * The enclosure should already be in the enclosure 1168 * table due to the Enclosure Add event. If not, just 1169 * continue, nothing can be done. 1170 */ 1171 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1172 topo_change->enc_handle); 1173 if (enc_idx == MPS_ENCTABLE_BAD_IDX) { 1174 phy_change->is_processed = 1; 1175 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1176 "failed to add the device with handle " 1177 "0x%04x because the enclosure is not in " 1178 "the mapping table\n", __func__, 1179 phy_change->dev_handle); 1180 continue; 1181 } 1182 if (!((phy_change->device_info & 1183 MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1184 (phy_change->device_info & 1185 (MPI2_SAS_DEVICE_INFO_SSP_TARGET | 1186 MPI2_SAS_DEVICE_INFO_STP_TARGET | 1187 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) { 1188 phy_change->is_processed = 1; 1189 continue; 1190 } 1191 et_entry = &sc->enclosure_table[enc_idx]; 1192 1193 /* 1194 * If the enclosure already has a start_index, it's been 1195 * mapped, so go to the next Topo change. 1196 */ 1197 if (et_entry->start_index != MPS_MAPTABLE_BAD_IDX) 1198 continue; 1199 1200 /* 1201 * If the Expander Handle is 0, the devices are direct 1202 * attached. In that case, the start_index must be just 1203 * after the reserved entries. Otherwise, find space in 1204 * the mapping table for the enclosure's devices. 1205 */ 1206 if (!topo_change->exp_handle) { 1207 map_idx = sc->num_rsvd_entries; 1208 et_entry->start_index = map_idx; 1209 } else { 1210 map_idx = _mapping_find_enc_map_space(sc, 1211 et_entry); 1212 et_entry->start_index = map_idx; 1213 1214 /* 1215 * If space cannot be found to hold all of the 1216 * enclosure's devices in the mapping table, 1217 * there's no need to continue checking the 1218 * other devices in this event. Set all of the 1219 * phy_details for this event (if the change is 1220 * for an add) as already processed because none 1221 * of these devices can be added to the mapping 1222 * table. 1223 */ 1224 if (et_entry->start_index == 1225 MPS_MAPTABLE_BAD_IDX) { 1226 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, 1227 "%s: failed to add the enclosure " 1228 "with ID 0x%016jx because there is " 1229 "no free space available in the " 1230 "mapping table for all of the " 1231 "enclosure's devices.\n", __func__, 1232 (uintmax_t)et_entry->enclosure_id); 1233 phy_change->is_processed = 1; 1234 for (phy_idx = 0; phy_idx < 1235 topo_change->num_entries; 1236 phy_idx++) { 1237 tmp_phy_change = 1238 &topo_change->phy_details 1239 [phy_idx]; 1240 if (tmp_phy_change->reason == 1241 add_code) 1242 tmp_phy_change-> 1243 is_processed = 1; 1244 } 1245 break; 1246 } 1247 } 1248 1249 /* 1250 * Found space in the mapping table for this enclosure. 1251 * Initialize each mapping table entry for the 1252 * enclosure. 1253 */ 1254 mps_dprint(sc, MPS_MAPPING, "%s: Initialize %d map " 1255 "entries for the enclosure, starting at map index " 1256 " %d.\n", __func__, et_entry->num_slots, map_idx); 1257 mt_entry = &sc->mapping_table[map_idx]; 1258 for (index = map_idx; index < (et_entry->num_slots 1259 + map_idx); index++, mt_entry++) { 1260 mt_entry->device_info = MPS_DEV_RESERVED; 1261 mt_entry->physical_id = et_entry->enclosure_id; 1262 mt_entry->phy_bits = et_entry->phy_bits; 1263 mt_entry->missing_count = 0; 1264 } 1265 } 1266 } 1267 } 1268 1269 /** 1270 * _mapping_set_mid_to_eid -set map table data from enclosure table 1271 * @sc: per adapter object 1272 * @et_entry: enclosure entry 1273 * 1274 * Returns nothing 1275 */ 1276 static inline void 1277 _mapping_set_mid_to_eid(struct mps_softc *sc, 1278 struct enc_mapping_table *et_entry) 1279 { 1280 struct dev_mapping_table *mt_entry; 1281 u16 slots = et_entry->num_slots, map_idx; 1282 u32 start_idx = et_entry->start_index; 1283 1284 if (start_idx != MPS_MAPTABLE_BAD_IDX) { 1285 mt_entry = &sc->mapping_table[start_idx]; 1286 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++) 1287 mt_entry->physical_id = et_entry->enclosure_id; 1288 } 1289 } 1290 1291 /** 1292 * _mapping_clear_removed_entries - mark the entries to be cleared 1293 * @sc: per adapter object 1294 * 1295 * Search through the removal table and mark the entries which needs to be 1296 * flushed to DPM and also updates the map table and enclosure table by 1297 * clearing the corresponding entries. 1298 * 1299 * Returns nothing 1300 */ 1301 static void 1302 _mapping_clear_removed_entries(struct mps_softc *sc) 1303 { 1304 u32 remove_idx; 1305 struct map_removal_table *remove_entry; 1306 Mpi2DriverMap0Entry_t *dpm_entry; 1307 u8 done_flag = 0, num_entries, m, i; 1308 struct enc_mapping_table *et_entry, *from, *to; 1309 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1310 1311 if (sc->is_dpm_enable) { 1312 remove_entry = sc->removal_table; 1313 for (remove_idx = 0; remove_idx < sc->max_devices; 1314 remove_idx++, remove_entry++) { 1315 if (remove_entry->dpm_entry_num != MPS_DPM_BAD_IDX) { 1316 dpm_entry = (Mpi2DriverMap0Entry_t *) 1317 ((u8 *) sc->dpm_pg0 + 1318 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1319 dpm_entry += remove_entry->dpm_entry_num; 1320 dpm_entry->PhysicalIdentifier.Low = 0; 1321 dpm_entry->PhysicalIdentifier.High = 0; 1322 dpm_entry->DeviceIndex = 0; 1323 dpm_entry->MappingInformation = 0; 1324 dpm_entry->PhysicalBitsMapping = 0; 1325 sc->dpm_flush_entry[remove_entry-> 1326 dpm_entry_num] = 1; 1327 sc->dpm_entry_used[remove_entry->dpm_entry_num] 1328 = 0; 1329 remove_entry->dpm_entry_num = MPS_DPM_BAD_IDX; 1330 } 1331 } 1332 } 1333 1334 /* 1335 * When using Enc/Slot mapping, if a new enclosure was added and old 1336 * enclosure space was needed, the enclosure table may now have gaps 1337 * that need to be closed. All enclosure mappings need to be contiguous 1338 * so that space can be reused correctly if available. 1339 */ 1340 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1341 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1342 num_entries = sc->num_enc_table_entries; 1343 while (!done_flag) { 1344 done_flag = 1; 1345 et_entry = sc->enclosure_table; 1346 for (i = 0; i < num_entries; i++, et_entry++) { 1347 if (!et_entry->enc_handle && et_entry-> 1348 init_complete) { 1349 done_flag = 0; 1350 if (i != (num_entries - 1)) { 1351 from = &sc->enclosure_table 1352 [i+1]; 1353 to = &sc->enclosure_table[i]; 1354 for (m = i; m < (num_entries - 1355 1); m++, from++, to++) { 1356 _mapping_set_mid_to_eid 1357 (sc, to); 1358 *to = *from; 1359 } 1360 _mapping_clear_enc_entry(to); 1361 sc->num_enc_table_entries--; 1362 num_entries = 1363 sc->num_enc_table_entries; 1364 } else { 1365 _mapping_clear_enc_entry 1366 (et_entry); 1367 sc->num_enc_table_entries--; 1368 num_entries = 1369 sc->num_enc_table_entries; 1370 } 1371 } 1372 } 1373 } 1374 } 1375 } 1376 1377 /** 1378 * _mapping_add_new_device -Add the new device into mapping table 1379 * @sc: per adapter object 1380 * @topo_change: Topology change event entry 1381 * 1382 * Search through the topology change event list and update map table, 1383 * enclosure table and DPM pages for the newly added devices. 1384 * 1385 * Returns nothing 1386 */ 1387 static void 1388 _mapping_add_new_device(struct mps_softc *sc, 1389 struct _map_topology_change *topo_change) 1390 { 1391 u8 enc_idx, missing_cnt, is_removed = 0; 1392 u16 dpm_idx; 1393 u32 search_idx, map_idx; 1394 u32 entry; 1395 struct dev_mapping_table *mt_entry; 1396 struct enc_mapping_table *et_entry; 1397 struct _map_phy_change *phy_change; 1398 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1399 Mpi2DriverMap0Entry_t *dpm_entry; 1400 uint64_t temp64_var; 1401 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1402 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1403 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1404 1405 for (entry = 0; entry < topo_change->num_entries; entry++) { 1406 phy_change = &topo_change->phy_details[entry]; 1407 if (phy_change->is_processed) 1408 continue; 1409 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED || 1410 !phy_change->dev_handle) { 1411 phy_change->is_processed = 1; 1412 continue; 1413 } 1414 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1415 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1416 enc_idx = _mapping_get_enc_idx_from_handle 1417 (sc, topo_change->enc_handle); 1418 if (enc_idx == MPS_ENCTABLE_BAD_IDX) { 1419 phy_change->is_processed = 1; 1420 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1421 "failed to add the device with handle " 1422 "0x%04x because the enclosure is not in " 1423 "the mapping table\n", __func__, 1424 phy_change->dev_handle); 1425 continue; 1426 } 1427 1428 /* 1429 * If the enclosure's start_index is BAD here, it means 1430 * that there is no room in the mapping table to cover 1431 * all of the devices that could be in the enclosure. 1432 * There's no reason to process any of the devices for 1433 * this enclosure since they can't be mapped. 1434 */ 1435 et_entry = &sc->enclosure_table[enc_idx]; 1436 if (et_entry->start_index == MPS_MAPTABLE_BAD_IDX) { 1437 phy_change->is_processed = 1; 1438 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1439 "failed to add the device with handle " 1440 "0x%04x because there is no free space " 1441 "available in the mapping table\n", 1442 __func__, phy_change->dev_handle); 1443 continue; 1444 } 1445 1446 /* 1447 * Add this device to the mapping table at the correct 1448 * offset where space was found to map the enclosure. 1449 * Then setup the DPM entry information if being used. 1450 */ 1451 map_idx = et_entry->start_index + phy_change->slot - 1452 et_entry->start_slot; 1453 mt_entry = &sc->mapping_table[map_idx]; 1454 mt_entry->physical_id = phy_change->physical_id; 1455 mt_entry->id = map_idx; 1456 mt_entry->dev_handle = phy_change->dev_handle; 1457 mt_entry->missing_count = 0; 1458 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1459 mt_entry->device_info = phy_change->device_info | 1460 (MPS_DEV_RESERVED | MPS_MAP_IN_USE); 1461 if (sc->is_dpm_enable) { 1462 dpm_idx = et_entry->dpm_entry_num; 1463 if (dpm_idx == MPS_DPM_BAD_IDX) 1464 dpm_idx = _mapping_get_dpm_idx_from_id 1465 (sc, et_entry->enclosure_id, 1466 et_entry->phy_bits); 1467 if (dpm_idx == MPS_DPM_BAD_IDX) { 1468 dpm_idx = _mapping_get_free_dpm_idx(sc); 1469 if (dpm_idx != MPS_DPM_BAD_IDX) { 1470 dpm_entry = 1471 (Mpi2DriverMap0Entry_t *) 1472 ((u8 *) sc->dpm_pg0 + 1473 hdr_sz); 1474 dpm_entry += dpm_idx; 1475 dpm_entry-> 1476 PhysicalIdentifier.Low = 1477 (0xFFFFFFFF & 1478 et_entry->enclosure_id); 1479 dpm_entry-> 1480 PhysicalIdentifier.High = 1481 (et_entry->enclosure_id 1482 >> 32); 1483 dpm_entry->DeviceIndex = 1484 (U16)et_entry->start_index; 1485 dpm_entry->MappingInformation = 1486 et_entry->num_slots; 1487 dpm_entry->MappingInformation 1488 <<= map_shift; 1489 dpm_entry->PhysicalBitsMapping 1490 = et_entry->phy_bits; 1491 et_entry->dpm_entry_num = 1492 dpm_idx; 1493 sc->dpm_entry_used[dpm_idx] = 1; 1494 sc->dpm_flush_entry[dpm_idx] = 1495 1; 1496 phy_change->is_processed = 1; 1497 } else { 1498 phy_change->is_processed = 1; 1499 mps_dprint(sc, MPS_ERROR | 1500 MPS_MAPPING, "%s: failed " 1501 "to add the device with " 1502 "handle 0x%04x to " 1503 "persistent table because " 1504 "there is no free space " 1505 "available\n", __func__, 1506 phy_change->dev_handle); 1507 } 1508 } else { 1509 et_entry->dpm_entry_num = dpm_idx; 1510 mt_entry->dpm_entry_num = dpm_idx; 1511 } 1512 } 1513 et_entry->init_complete = 1; 1514 } else if ((ioc_pg8_flags & 1515 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1516 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1517 1518 /* 1519 * Get the mapping table index for this device. If it's 1520 * not in the mapping table yet, find a free entry if 1521 * one is available. If there are no free entries, look 1522 * for the entry that has the highest missing count. If 1523 * none of that works to find an entry in the mapping 1524 * table, there is a problem. Log a message and just 1525 * continue on. 1526 */ 1527 map_idx = _mapping_get_mt_idx_from_id 1528 (sc, phy_change->physical_id); 1529 if (map_idx == MPS_MAPTABLE_BAD_IDX) { 1530 search_idx = sc->num_rsvd_entries; 1531 if (topo_change->exp_handle) 1532 search_idx += max_num_phy_ids; 1533 map_idx = _mapping_get_free_mt_idx(sc, 1534 search_idx); 1535 } 1536 1537 /* 1538 * If an entry will be used that has a missing device, 1539 * clear its entry from the DPM in the controller. 1540 */ 1541 if (map_idx == MPS_MAPTABLE_BAD_IDX) { 1542 map_idx = _mapping_get_high_missing_mt_idx(sc); 1543 if (map_idx != MPS_MAPTABLE_BAD_IDX) { 1544 mt_entry = &sc->mapping_table[map_idx]; 1545 _mapping_add_to_removal_table(sc, 1546 mt_entry->dpm_entry_num); 1547 is_removed = 1; 1548 mt_entry->init_complete = 0; 1549 } 1550 } 1551 if (map_idx != MPS_MAPTABLE_BAD_IDX) { 1552 mt_entry = &sc->mapping_table[map_idx]; 1553 mt_entry->physical_id = phy_change->physical_id; 1554 mt_entry->id = map_idx; 1555 mt_entry->dev_handle = phy_change->dev_handle; 1556 mt_entry->missing_count = 0; 1557 mt_entry->device_info = phy_change->device_info 1558 | (MPS_DEV_RESERVED | MPS_MAP_IN_USE); 1559 } else { 1560 phy_change->is_processed = 1; 1561 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1562 "failed to add the device with handle " 1563 "0x%04x because there is no free space " 1564 "available in the mapping table\n", 1565 __func__, phy_change->dev_handle); 1566 continue; 1567 } 1568 if (sc->is_dpm_enable) { 1569 if (mt_entry->dpm_entry_num != 1570 MPS_DPM_BAD_IDX) { 1571 dpm_idx = mt_entry->dpm_entry_num; 1572 dpm_entry = (Mpi2DriverMap0Entry_t *) 1573 ((u8 *)sc->dpm_pg0 + hdr_sz); 1574 dpm_entry += dpm_idx; 1575 missing_cnt = dpm_entry-> 1576 MappingInformation & 1577 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1578 temp64_var = dpm_entry-> 1579 PhysicalIdentifier.High; 1580 temp64_var = (temp64_var << 32) | 1581 dpm_entry->PhysicalIdentifier.Low; 1582 1583 /* 1584 * If the Mapping Table's info is not 1585 * the same as the DPM entry, clear the 1586 * init_complete flag so that it's 1587 * updated. 1588 */ 1589 if ((mt_entry->physical_id == 1590 temp64_var) && !missing_cnt) 1591 mt_entry->init_complete = 1; 1592 else 1593 mt_entry->init_complete = 0; 1594 } else { 1595 dpm_idx = _mapping_get_free_dpm_idx(sc); 1596 mt_entry->init_complete = 0; 1597 } 1598 if (dpm_idx != MPS_DPM_BAD_IDX && 1599 !mt_entry->init_complete) { 1600 mt_entry->dpm_entry_num = dpm_idx; 1601 dpm_entry = (Mpi2DriverMap0Entry_t *) 1602 ((u8 *)sc->dpm_pg0 + hdr_sz); 1603 dpm_entry += dpm_idx; 1604 dpm_entry->PhysicalIdentifier.Low = 1605 (0xFFFFFFFF & 1606 mt_entry->physical_id); 1607 dpm_entry->PhysicalIdentifier.High = 1608 (mt_entry->physical_id >> 32); 1609 dpm_entry->DeviceIndex = (U16) map_idx; 1610 dpm_entry->MappingInformation = 0; 1611 dpm_entry->PhysicalBitsMapping = 0; 1612 sc->dpm_entry_used[dpm_idx] = 1; 1613 sc->dpm_flush_entry[dpm_idx] = 1; 1614 phy_change->is_processed = 1; 1615 } else if (dpm_idx == MPS_DPM_BAD_IDX) { 1616 phy_change->is_processed = 1; 1617 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, 1618 "%s: failed to add the device with " 1619 "handle 0x%04x to persistent table " 1620 "because there is no free space " 1621 "available\n", __func__, 1622 phy_change->dev_handle); 1623 } 1624 } 1625 mt_entry->init_complete = 1; 1626 } 1627 1628 phy_change->is_processed = 1; 1629 } 1630 if (is_removed) 1631 _mapping_clear_removed_entries(sc); 1632 } 1633 1634 /** 1635 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM 1636 * @sc: per adapter object 1637 * 1638 * Returns nothing 1639 */ 1640 static void 1641 _mapping_flush_dpm_pages(struct mps_softc *sc) 1642 { 1643 Mpi2DriverMap0Entry_t *dpm_entry; 1644 Mpi2ConfigReply_t mpi_reply; 1645 Mpi2DriverMappingPage0_t config_page; 1646 u16 entry_num; 1647 1648 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 1649 if (!sc->dpm_flush_entry[entry_num]) 1650 continue; 1651 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 1652 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 1653 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1654 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 1655 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1656 dpm_entry += entry_num; 1657 dpm_entry->MappingInformation = htole16(dpm_entry-> 1658 MappingInformation); 1659 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex); 1660 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry-> 1661 PhysicalBitsMapping); 1662 memcpy(&config_page.Entry, (u8 *)dpm_entry, 1663 sizeof(Mpi2DriverMap0Entry_t)); 1664 /* TODO-How to handle failed writes? */ 1665 mps_dprint(sc, MPS_MAPPING, "%s: Flushing DPM entry %d.\n", 1666 __func__, entry_num); 1667 if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 1668 entry_num)) { 1669 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Flush of " 1670 "DPM entry %d for device failed\n", __func__, 1671 entry_num); 1672 } else 1673 sc->dpm_flush_entry[entry_num] = 0; 1674 dpm_entry->MappingInformation = le16toh(dpm_entry-> 1675 MappingInformation); 1676 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 1677 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry-> 1678 PhysicalBitsMapping); 1679 } 1680 } 1681 1682 /** 1683 * _mapping_allocate_memory- allocates the memory required for mapping tables 1684 * @sc: per adapter object 1685 * 1686 * Allocates the memory for all the tables required for host mapping 1687 * 1688 * Return 0 on success or non-zero on failure. 1689 */ 1690 int 1691 mps_mapping_allocate_memory(struct mps_softc *sc) 1692 { 1693 uint32_t dpm_pg0_sz; 1694 1695 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) * 1696 sc->max_devices), M_MPT2, M_ZERO|M_NOWAIT); 1697 if (!sc->mapping_table) 1698 goto free_resources; 1699 1700 sc->removal_table = malloc((sizeof(struct map_removal_table) * 1701 sc->max_devices), M_MPT2, M_ZERO|M_NOWAIT); 1702 if (!sc->removal_table) 1703 goto free_resources; 1704 1705 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) * 1706 sc->max_enclosures), M_MPT2, M_ZERO|M_NOWAIT); 1707 if (!sc->enclosure_table) 1708 goto free_resources; 1709 1710 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries), 1711 M_MPT2, M_ZERO|M_NOWAIT); 1712 if (!sc->dpm_entry_used) 1713 goto free_resources; 1714 1715 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries), 1716 M_MPT2, M_ZERO|M_NOWAIT); 1717 if (!sc->dpm_flush_entry) 1718 goto free_resources; 1719 1720 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 1721 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 1722 1723 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPT2, M_ZERO|M_NOWAIT); 1724 if (!sc->dpm_pg0) { 1725 printf("%s: memory alloc failed for dpm page; disabling dpm\n", 1726 __func__); 1727 sc->is_dpm_enable = 0; 1728 } 1729 1730 return 0; 1731 1732 free_resources: 1733 free(sc->mapping_table, M_MPT2); 1734 free(sc->removal_table, M_MPT2); 1735 free(sc->enclosure_table, M_MPT2); 1736 free(sc->dpm_entry_used, M_MPT2); 1737 free(sc->dpm_flush_entry, M_MPT2); 1738 free(sc->dpm_pg0, M_MPT2); 1739 printf("%s: device initialization failed due to failure in mapping " 1740 "table memory allocation\n", __func__); 1741 return -1; 1742 } 1743 1744 /** 1745 * mps_mapping_free_memory- frees the memory allocated for mapping tables 1746 * @sc: per adapter object 1747 * 1748 * Returns nothing. 1749 */ 1750 void 1751 mps_mapping_free_memory(struct mps_softc *sc) 1752 { 1753 free(sc->mapping_table, M_MPT2); 1754 free(sc->removal_table, M_MPT2); 1755 free(sc->enclosure_table, M_MPT2); 1756 free(sc->dpm_entry_used, M_MPT2); 1757 free(sc->dpm_flush_entry, M_MPT2); 1758 free(sc->dpm_pg0, M_MPT2); 1759 } 1760 1761 static void 1762 _mapping_process_dpm_pg0(struct mps_softc *sc) 1763 { 1764 u8 missing_cnt, enc_idx; 1765 u16 slot_id, entry_num, num_slots; 1766 u32 map_idx, dev_idx, start_idx, end_idx; 1767 struct dev_mapping_table *mt_entry; 1768 Mpi2DriverMap0Entry_t *dpm_entry; 1769 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1770 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1771 struct enc_mapping_table *et_entry; 1772 u64 physical_id; 1773 u32 phy_bits = 0; 1774 1775 /* 1776 * start_idx and end_idx are only used for IR. 1777 */ 1778 if (sc->ir_firmware) 1779 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 1780 1781 /* 1782 * Look through all of the DPM entries that were read from the 1783 * controller and copy them over to the driver's internal table if they 1784 * have a non-zero ID. At this point, any ID with a value of 0 would be 1785 * invalid, so don't copy it. 1786 */ 1787 mps_dprint(sc, MPS_MAPPING, "%s: Start copy of %d DPM entries into the " 1788 "mapping table.\n", __func__, sc->max_dpm_entries); 1789 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 1790 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1791 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 1792 dpm_entry++) { 1793 physical_id = dpm_entry->PhysicalIdentifier.High; 1794 physical_id = (physical_id << 32) | 1795 dpm_entry->PhysicalIdentifier.Low; 1796 if (!physical_id) { 1797 sc->dpm_entry_used[entry_num] = 0; 1798 continue; 1799 } 1800 sc->dpm_entry_used[entry_num] = 1; 1801 dpm_entry->MappingInformation = le16toh(dpm_entry-> 1802 MappingInformation); 1803 missing_cnt = dpm_entry->MappingInformation & 1804 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1805 dev_idx = le16toh(dpm_entry->DeviceIndex); 1806 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping); 1807 1808 /* 1809 * Volumes are at special locations in the mapping table so 1810 * account for that. Volume mapping table entries do not depend 1811 * on the type of mapping, so continue the loop after adding 1812 * volumes to the mapping table. 1813 */ 1814 if (sc->ir_firmware && (dev_idx >= start_idx) && 1815 (dev_idx <= end_idx)) { 1816 mt_entry = &sc->mapping_table[dev_idx]; 1817 mt_entry->physical_id = 1818 dpm_entry->PhysicalIdentifier.High; 1819 mt_entry->physical_id = (mt_entry->physical_id << 32) | 1820 dpm_entry->PhysicalIdentifier.Low; 1821 mt_entry->id = dev_idx; 1822 mt_entry->missing_count = missing_cnt; 1823 mt_entry->dpm_entry_num = entry_num; 1824 mt_entry->device_info = MPS_DEV_RESERVED; 1825 continue; 1826 } 1827 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1828 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1829 1830 /* 1831 * The dev_idx for an enclosure is the start index. If 1832 * the start index is within the controller's default 1833 * enclosure area, set the number of slots for this 1834 * enclosure to the max allowed. Otherwise, it should be 1835 * a normal enclosure and the number of slots is in the 1836 * DPM entry's Mapping Information. 1837 */ 1838 if (dev_idx < (sc->num_rsvd_entries + 1839 max_num_phy_ids)) { 1840 slot_id = 0; 1841 if (ioc_pg8_flags & 1842 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1) 1843 slot_id = 1; 1844 num_slots = max_num_phy_ids; 1845 } else { 1846 slot_id = 0; 1847 num_slots = dpm_entry->MappingInformation & 1848 MPI2_DRVMAP0_MAPINFO_SLOT_MASK; 1849 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1850 } 1851 enc_idx = sc->num_enc_table_entries; 1852 if (enc_idx >= sc->max_enclosures) { 1853 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1854 "Number of enclosure entries in DPM exceed " 1855 "the max allowed of %d.\n", __func__, 1856 sc->max_enclosures); 1857 break; 1858 } 1859 sc->num_enc_table_entries++; 1860 et_entry = &sc->enclosure_table[enc_idx]; 1861 physical_id = dpm_entry->PhysicalIdentifier.High; 1862 et_entry->enclosure_id = (physical_id << 32) | 1863 dpm_entry->PhysicalIdentifier.Low; 1864 et_entry->start_index = dev_idx; 1865 et_entry->dpm_entry_num = entry_num; 1866 et_entry->num_slots = num_slots; 1867 et_entry->start_slot = slot_id; 1868 et_entry->missing_count = missing_cnt; 1869 et_entry->phy_bits = phy_bits; 1870 1871 /* 1872 * Initialize all entries for this enclosure in the 1873 * mapping table and mark them as reserved. The actual 1874 * devices have not been processed yet but when they are 1875 * they will use these entries. If an entry is found 1876 * that already has a valid DPM index, the mapping table 1877 * is corrupt. This can happen if the mapping type is 1878 * changed without clearing all of the DPM entries in 1879 * the controller. 1880 */ 1881 mt_entry = &sc->mapping_table[dev_idx]; 1882 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots); 1883 map_idx++, mt_entry++) { 1884 if (mt_entry->dpm_entry_num != 1885 MPS_DPM_BAD_IDX) { 1886 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, 1887 "%s: Conflict in mapping table for " 1888 " enclosure %d\n", __func__, 1889 enc_idx); 1890 break; 1891 } 1892 physical_id = 1893 dpm_entry->PhysicalIdentifier.High; 1894 mt_entry->physical_id = (physical_id << 32) | 1895 dpm_entry->PhysicalIdentifier.Low; 1896 mt_entry->phy_bits = phy_bits; 1897 mt_entry->id = dev_idx; 1898 mt_entry->dpm_entry_num = entry_num; 1899 mt_entry->missing_count = missing_cnt; 1900 mt_entry->device_info = MPS_DEV_RESERVED; 1901 } 1902 } else if ((ioc_pg8_flags & 1903 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1904 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1905 1906 /* 1907 * Device mapping, so simply copy the DPM entries to the 1908 * mapping table, but check for a corrupt mapping table 1909 * (as described above in Enc/Slot mapping). 1910 */ 1911 map_idx = dev_idx; 1912 mt_entry = &sc->mapping_table[map_idx]; 1913 if (mt_entry->dpm_entry_num != MPS_DPM_BAD_IDX) { 1914 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 1915 "Conflict in mapping table for device %d\n", 1916 __func__, map_idx); 1917 break; 1918 } 1919 physical_id = dpm_entry->PhysicalIdentifier.High; 1920 mt_entry->physical_id = (physical_id << 32) | 1921 dpm_entry->PhysicalIdentifier.Low; 1922 mt_entry->phy_bits = phy_bits; 1923 mt_entry->id = dev_idx; 1924 mt_entry->missing_count = missing_cnt; 1925 mt_entry->dpm_entry_num = entry_num; 1926 mt_entry->device_info = MPS_DEV_RESERVED; 1927 } 1928 } /*close the loop for DPM table */ 1929 } 1930 1931 /* 1932 * mps_mapping_check_devices - start of the day check for device availabilty 1933 * @sc: per adapter object 1934 * 1935 * Returns nothing. 1936 */ 1937 void 1938 mps_mapping_check_devices(void *data) 1939 { 1940 u32 i; 1941 struct dev_mapping_table *mt_entry; 1942 struct mps_softc *sc = (struct mps_softc *)data; 1943 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1944 struct enc_mapping_table *et_entry; 1945 u32 start_idx = 0, end_idx = 0; 1946 u8 stop_device_checks = 0; 1947 1948 MPS_FUNCTRACE(sc); 1949 1950 /* 1951 * Clear this flag so that this function is never called again except 1952 * within this function if the check needs to be done again. The 1953 * purpose is to check for missing devices that are currently in the 1954 * mapping table so do this only at driver init after discovery. 1955 */ 1956 sc->track_mapping_events = 0; 1957 1958 /* 1959 * callout synchronization 1960 * This is used to prevent race conditions for the callout. 1961 */ 1962 mps_dprint(sc, MPS_MAPPING, "%s: Start check for missing devices.\n", 1963 __func__); 1964 mtx_assert(&sc->mps_mtx, MA_OWNED); 1965 if ((callout_pending(&sc->device_check_callout)) || 1966 (!callout_active(&sc->device_check_callout))) { 1967 mps_dprint(sc, MPS_MAPPING, "%s: Device Check Callout is " 1968 "already pending or not active.\n", __func__); 1969 return; 1970 } 1971 callout_deactivate(&sc->device_check_callout); 1972 1973 /* 1974 * Use callout to check if any devices in the mapping table have been 1975 * processed yet. If ALL devices are marked as not init_complete, no 1976 * devices have been processed and mapped. Until devices are mapped 1977 * there's no reason to mark them as missing. Continue resetting this 1978 * callout until devices have been mapped. 1979 */ 1980 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1981 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1982 et_entry = sc->enclosure_table; 1983 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 1984 if (et_entry->init_complete) { 1985 stop_device_checks = 1; 1986 break; 1987 } 1988 } 1989 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1990 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1991 mt_entry = sc->mapping_table; 1992 for (i = 0; i < sc->max_devices; i++, mt_entry++) { 1993 if (mt_entry->init_complete) { 1994 stop_device_checks = 1; 1995 break; 1996 } 1997 } 1998 } 1999 2000 /* 2001 * Setup another callout check after a delay. Keep doing this until 2002 * devices are mapped. 2003 */ 2004 if (!stop_device_checks) { 2005 mps_dprint(sc, MPS_MAPPING, "%s: No devices have been mapped. " 2006 "Reset callout to check again after a %d second delay.\n", 2007 __func__, MPS_MISSING_CHECK_DELAY); 2008 callout_reset(&sc->device_check_callout, 2009 MPS_MISSING_CHECK_DELAY * hz, mps_mapping_check_devices, 2010 sc); 2011 return; 2012 } 2013 mps_dprint(sc, MPS_MAPPING, "%s: Device check complete.\n", __func__); 2014 2015 /* 2016 * Depending on the mapping type, check if devices have been processed 2017 * and update their missing counts if not processed. 2018 */ 2019 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2020 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2021 et_entry = sc->enclosure_table; 2022 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2023 if (!et_entry->init_complete) { 2024 if (et_entry->missing_count < 2025 MPS_MAX_MISSING_COUNT) { 2026 mps_dprint(sc, MPS_MAPPING, "%s: " 2027 "Enclosure %d is missing from the " 2028 "topology. Update its missing " 2029 "count.\n", __func__, i); 2030 et_entry->missing_count++; 2031 if (et_entry->dpm_entry_num != 2032 MPS_DPM_BAD_IDX) { 2033 _mapping_commit_enc_entry(sc, 2034 et_entry); 2035 } 2036 } 2037 et_entry->init_complete = 1; 2038 } 2039 } 2040 if (!sc->ir_firmware) 2041 return; 2042 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2043 mt_entry = &sc->mapping_table[start_idx]; 2044 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2045 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2046 start_idx = 0; 2047 end_idx = sc->max_devices - 1; 2048 mt_entry = sc->mapping_table; 2049 } 2050 2051 /* 2052 * The start and end indices have been set above according to the 2053 * mapping type. Go through these mappings and update any entries that 2054 * do not have the init_complete flag set, which means they are missing. 2055 */ 2056 if (end_idx == 0) 2057 return; 2058 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) { 2059 if (mt_entry->device_info & MPS_DEV_RESERVED 2060 && !mt_entry->physical_id) 2061 mt_entry->init_complete = 1; 2062 else if (mt_entry->device_info & MPS_DEV_RESERVED) { 2063 if (!mt_entry->init_complete) { 2064 mps_dprint(sc, MPS_MAPPING, "%s: Device in " 2065 "mapping table at index %d is missing from " 2066 "topology. Update its missing count.\n", 2067 __func__, i); 2068 if (mt_entry->missing_count < 2069 MPS_MAX_MISSING_COUNT) { 2070 mt_entry->missing_count++; 2071 if (mt_entry->dpm_entry_num != 2072 MPS_DPM_BAD_IDX) { 2073 _mapping_commit_map_entry(sc, 2074 mt_entry); 2075 } 2076 } 2077 mt_entry->init_complete = 1; 2078 } 2079 } 2080 } 2081 } 2082 2083 /** 2084 * mps_mapping_initialize - initialize mapping tables 2085 * @sc: per adapter object 2086 * 2087 * Read controller persitant mapping tables into internal data area. 2088 * 2089 * Return 0 for success or non-zero for failure. 2090 */ 2091 int 2092 mps_mapping_initialize(struct mps_softc *sc) 2093 { 2094 uint16_t volume_mapping_flags, dpm_pg0_sz; 2095 uint32_t i; 2096 Mpi2ConfigReply_t mpi_reply; 2097 int error; 2098 uint8_t retry_count; 2099 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2100 2101 /* The additional 1 accounts for the virtual enclosure 2102 * created for the controller 2103 */ 2104 sc->max_enclosures = sc->facts->MaxEnclosures + 1; 2105 sc->max_expanders = sc->facts->MaxSasExpanders; 2106 sc->max_volumes = sc->facts->MaxVolumes; 2107 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes; 2108 sc->pending_map_events = 0; 2109 sc->num_enc_table_entries = 0; 2110 sc->num_rsvd_entries = 0; 2111 sc->max_dpm_entries = sc->ioc_pg8.MaxPersistentEntries; 2112 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0; 2113 sc->track_mapping_events = 0; 2114 2115 2116 mps_dprint(sc, MPS_MAPPING, "%s: Mapping table has a max of %d entries " 2117 "and DPM has a max of %d entries.\n", __func__, sc->max_devices, 2118 sc->max_dpm_entries); 2119 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING) 2120 sc->is_dpm_enable = 0; 2121 2122 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 2123 sc->num_rsvd_entries = 1; 2124 2125 volume_mapping_flags = sc->ioc_pg8.IRVolumeMappingFlags & 2126 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 2127 if (sc->ir_firmware && (volume_mapping_flags == 2128 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)) 2129 sc->num_rsvd_entries += sc->max_volumes; 2130 2131 error = mps_mapping_allocate_memory(sc); 2132 if (error) 2133 return (error); 2134 2135 for (i = 0; i < sc->max_devices; i++) 2136 _mapping_clear_map_entry(sc->mapping_table + i); 2137 2138 for (i = 0; i < sc->max_enclosures; i++) 2139 _mapping_clear_enc_entry(sc->enclosure_table + i); 2140 2141 for (i = 0; i < sc->max_devices; i++) { 2142 sc->removal_table[i].dev_handle = 0; 2143 sc->removal_table[i].dpm_entry_num = MPS_DPM_BAD_IDX; 2144 } 2145 2146 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries); 2147 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries); 2148 2149 if (sc->is_dpm_enable) { 2150 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2151 (sc->max_dpm_entries * 2152 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2153 retry_count = 0; 2154 2155 retry_read_dpm: 2156 if (mps_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0, 2157 dpm_pg0_sz)) { 2158 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: DPM page " 2159 "read failed.\n", __func__); 2160 if (retry_count < 3) { 2161 retry_count++; 2162 goto retry_read_dpm; 2163 } 2164 sc->is_dpm_enable = 0; 2165 } 2166 } 2167 2168 if (sc->is_dpm_enable) 2169 _mapping_process_dpm_pg0(sc); 2170 else { 2171 mps_dprint(sc, MPS_MAPPING, "%s: DPM processing is disabled. " 2172 "Device mappings will not persist across reboots or " 2173 "resets.\n", __func__); 2174 } 2175 2176 sc->track_mapping_events = 1; 2177 return 0; 2178 } 2179 2180 /** 2181 * mps_mapping_exit - clear mapping table and associated memory 2182 * @sc: per adapter object 2183 * 2184 * Returns nothing. 2185 */ 2186 void 2187 mps_mapping_exit(struct mps_softc *sc) 2188 { 2189 _mapping_flush_dpm_pages(sc); 2190 mps_mapping_free_memory(sc); 2191 } 2192 2193 /** 2194 * mps_mapping_get_tid - return the target id for sas device and handle 2195 * @sc: per adapter object 2196 * @sas_address: sas address of the device 2197 * @handle: device handle 2198 * 2199 * Returns valid target ID on success or BAD_ID. 2200 */ 2201 unsigned int 2202 mps_mapping_get_tid(struct mps_softc *sc, uint64_t sas_address, u16 handle) 2203 { 2204 u32 map_idx; 2205 struct dev_mapping_table *mt_entry; 2206 2207 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 2208 mt_entry = &sc->mapping_table[map_idx]; 2209 if (mt_entry->dev_handle == handle && mt_entry->physical_id == 2210 sas_address) 2211 return mt_entry->id; 2212 } 2213 2214 return MPS_MAP_BAD_ID; 2215 } 2216 2217 /** 2218 * mps_mapping_get_tid_from_handle - find a target id in mapping table using 2219 * only the dev handle. This is just a wrapper function for the local function 2220 * _mapping_get_mt_idx_from_handle. 2221 * @sc: per adapter object 2222 * @handle: device handle 2223 * 2224 * Returns valid target ID on success or BAD_ID. 2225 */ 2226 unsigned int 2227 mps_mapping_get_tid_from_handle(struct mps_softc *sc, u16 handle) 2228 { 2229 return (_mapping_get_mt_idx_from_handle(sc, handle)); 2230 } 2231 2232 /** 2233 * mps_mapping_get_raid_tid - return the target id for raid device 2234 * @sc: per adapter object 2235 * @wwid: world wide identifier for raid volume 2236 * @volHandle: volume device handle 2237 * 2238 * Returns valid target ID on success or BAD_ID. 2239 */ 2240 unsigned int 2241 mps_mapping_get_raid_tid(struct mps_softc *sc, u64 wwid, u16 volHandle) 2242 { 2243 u32 start_idx, end_idx, map_idx; 2244 struct dev_mapping_table *mt_entry; 2245 2246 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2247 mt_entry = &sc->mapping_table[start_idx]; 2248 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 2249 if (mt_entry->dev_handle == volHandle && 2250 mt_entry->physical_id == wwid) 2251 return mt_entry->id; 2252 } 2253 2254 return MPS_MAP_BAD_ID; 2255 } 2256 2257 /** 2258 * mps_mapping_get_raid_tid_from_handle - find raid device in mapping table 2259 * using only the volume dev handle. This is just a wrapper function for the 2260 * local function _mapping_get_ir_mt_idx_from_handle. 2261 * @sc: per adapter object 2262 * @volHandle: volume device handle 2263 * 2264 * Returns valid target ID on success or BAD_ID. 2265 */ 2266 unsigned int 2267 mps_mapping_get_raid_tid_from_handle(struct mps_softc *sc, u16 volHandle) 2268 { 2269 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle)); 2270 } 2271 2272 /** 2273 * mps_mapping_enclosure_dev_status_change_event - handle enclosure events 2274 * @sc: per adapter object 2275 * @event_data: event data payload 2276 * 2277 * Return nothing. 2278 */ 2279 void 2280 mps_mapping_enclosure_dev_status_change_event(struct mps_softc *sc, 2281 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 2282 { 2283 u8 enc_idx, missing_count; 2284 struct enc_mapping_table *et_entry; 2285 Mpi2DriverMap0Entry_t *dpm_entry; 2286 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2287 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2288 u8 update_phy_bits = 0; 2289 u32 saved_phy_bits; 2290 uint64_t temp64_var; 2291 2292 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) != 2293 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) 2294 goto out; 2295 2296 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 2297 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2298 2299 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) { 2300 if (!event_data->NumSlots) { 2301 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Enclosure " 2302 "with handle = 0x%x reported 0 slots.\n", __func__, 2303 le16toh(event_data->EnclosureHandle)); 2304 goto out; 2305 } 2306 temp64_var = event_data->EnclosureLogicalID.High; 2307 temp64_var = (temp64_var << 32) | 2308 event_data->EnclosureLogicalID.Low; 2309 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var, 2310 event_data->PhyBits); 2311 2312 /* 2313 * If the Added enclosure is already in the Enclosure Table, 2314 * make sure that all the the enclosure info is up to date. If 2315 * the enclosure was missing and has just been added back, or if 2316 * the enclosure's Phy Bits have changed, clear the missing 2317 * count and update the Phy Bits in the mapping table and in the 2318 * DPM, if it's being used. 2319 */ 2320 if (enc_idx != MPS_ENCTABLE_BAD_IDX) { 2321 et_entry = &sc->enclosure_table[enc_idx]; 2322 if (et_entry->init_complete && 2323 !et_entry->missing_count) { 2324 mps_dprint(sc, MPS_MAPPING, "%s: Enclosure %d " 2325 "is already present with handle = 0x%x\n", 2326 __func__, enc_idx, et_entry->enc_handle); 2327 goto out; 2328 } 2329 et_entry->enc_handle = le16toh(event_data-> 2330 EnclosureHandle); 2331 et_entry->start_slot = le16toh(event_data->StartSlot); 2332 saved_phy_bits = et_entry->phy_bits; 2333 et_entry->phy_bits |= le32toh(event_data->PhyBits); 2334 if (saved_phy_bits != et_entry->phy_bits) 2335 update_phy_bits = 1; 2336 if (et_entry->missing_count || update_phy_bits) { 2337 et_entry->missing_count = 0; 2338 if (sc->is_dpm_enable && 2339 et_entry->dpm_entry_num != 2340 MPS_DPM_BAD_IDX) { 2341 dpm_entry += et_entry->dpm_entry_num; 2342 missing_count = 2343 (u8)(dpm_entry->MappingInformation & 2344 MPI2_DRVMAP0_MAPINFO_MISSING_MASK); 2345 if (missing_count || update_phy_bits) { 2346 dpm_entry->MappingInformation 2347 = et_entry->num_slots; 2348 dpm_entry->MappingInformation 2349 <<= map_shift; 2350 dpm_entry->PhysicalBitsMapping 2351 = et_entry->phy_bits; 2352 sc->dpm_flush_entry[et_entry-> 2353 dpm_entry_num] = 1; 2354 } 2355 } 2356 } 2357 } else { 2358 /* 2359 * This is a new enclosure that is being added. 2360 * Initialize the Enclosure Table entry. It will be 2361 * finalized when a device is added for the enclosure 2362 * and the enclosure has enough space in the Mapping 2363 * Table to map its devices. 2364 */ 2365 enc_idx = sc->num_enc_table_entries; 2366 if (enc_idx >= sc->max_enclosures) { 2367 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: " 2368 "Enclosure cannot be added to mapping " 2369 "table because it's full.\n", __func__); 2370 goto out; 2371 } 2372 sc->num_enc_table_entries++; 2373 et_entry = &sc->enclosure_table[enc_idx]; 2374 et_entry->enc_handle = le16toh(event_data-> 2375 EnclosureHandle); 2376 et_entry->enclosure_id = le64toh(event_data-> 2377 EnclosureLogicalID.High); 2378 et_entry->enclosure_id = 2379 ((et_entry->enclosure_id << 32) | 2380 le64toh(event_data->EnclosureLogicalID.Low)); 2381 et_entry->start_index = MPS_MAPTABLE_BAD_IDX; 2382 et_entry->dpm_entry_num = MPS_DPM_BAD_IDX; 2383 et_entry->num_slots = le16toh(event_data->NumSlots); 2384 et_entry->start_slot = le16toh(event_data->StartSlot); 2385 et_entry->phy_bits = le32toh(event_data->PhyBits); 2386 } 2387 et_entry->init_complete = 1; 2388 } else if (event_data->ReasonCode == 2389 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) { 2390 /* 2391 * An enclosure was removed. Update its missing count and then 2392 * update the DPM entry with the new missing count for the 2393 * enclosure. 2394 */ 2395 enc_idx = _mapping_get_enc_idx_from_handle(sc, 2396 le16toh(event_data->EnclosureHandle)); 2397 if (enc_idx == MPS_ENCTABLE_BAD_IDX) { 2398 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, "%s: Cannot " 2399 "unmap enclosure %d because it has already been " 2400 "deleted.\n", __func__, enc_idx); 2401 goto out; 2402 } 2403 et_entry = &sc->enclosure_table[enc_idx]; 2404 if (et_entry->missing_count < MPS_MAX_MISSING_COUNT) 2405 et_entry->missing_count++; 2406 if (sc->is_dpm_enable && 2407 et_entry->dpm_entry_num != MPS_DPM_BAD_IDX) { 2408 dpm_entry += et_entry->dpm_entry_num; 2409 dpm_entry->MappingInformation = et_entry->num_slots; 2410 dpm_entry->MappingInformation <<= map_shift; 2411 dpm_entry->MappingInformation |= 2412 et_entry->missing_count; 2413 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1; 2414 } 2415 et_entry->init_complete = 1; 2416 } 2417 2418 out: 2419 _mapping_flush_dpm_pages(sc); 2420 if (sc->pending_map_events) 2421 sc->pending_map_events--; 2422 } 2423 2424 /** 2425 * mps_mapping_topology_change_event - handle topology change events 2426 * @sc: per adapter object 2427 * @event_data: event data payload 2428 * 2429 * Returns nothing. 2430 */ 2431 void 2432 mps_mapping_topology_change_event(struct mps_softc *sc, 2433 Mpi2EventDataSasTopologyChangeList_t *event_data) 2434 { 2435 struct _map_topology_change topo_change; 2436 struct _map_phy_change *phy_change; 2437 Mpi2EventSasTopoPhyEntry_t *event_phy_change; 2438 u8 i, num_entries; 2439 2440 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2441 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle); 2442 num_entries = event_data->NumEntries; 2443 topo_change.num_entries = num_entries; 2444 topo_change.start_phy_num = event_data->StartPhyNum; 2445 topo_change.num_phys = event_data->NumPhys; 2446 topo_change.exp_status = event_data->ExpStatus; 2447 event_phy_change = event_data->PHY; 2448 topo_change.phy_details = NULL; 2449 2450 if (!num_entries) 2451 goto out; 2452 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries, 2453 M_MPT2, M_NOWAIT|M_ZERO); 2454 topo_change.phy_details = phy_change; 2455 if (!phy_change) 2456 goto out; 2457 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) { 2458 phy_change->dev_handle = le16toh(event_phy_change-> 2459 AttachedDevHandle); 2460 phy_change->reason = event_phy_change->PhyStatus & 2461 MPI2_EVENT_SAS_TOPO_RC_MASK; 2462 } 2463 _mapping_update_missing_count(sc, &topo_change); 2464 _mapping_get_dev_info(sc, &topo_change); 2465 _mapping_clear_removed_entries(sc); 2466 _mapping_add_new_device(sc, &topo_change); 2467 2468 out: 2469 free(topo_change.phy_details, M_MPT2); 2470 _mapping_flush_dpm_pages(sc); 2471 if (sc->pending_map_events) 2472 sc->pending_map_events--; 2473 } 2474 2475 /** 2476 * mps_mapping_ir_config_change_event - handle IR config change list events 2477 * @sc: per adapter object 2478 * @event_data: event data payload 2479 * 2480 * Returns nothing. 2481 */ 2482 void 2483 mps_mapping_ir_config_change_event(struct mps_softc *sc, 2484 Mpi2EventDataIrConfigChangeList_t *event_data) 2485 { 2486 Mpi2EventIrConfigElement_t *element; 2487 int i; 2488 u64 *wwid_table; 2489 u32 map_idx, flags; 2490 struct dev_mapping_table *mt_entry; 2491 u16 element_flags; 2492 2493 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPT2, 2494 M_NOWAIT | M_ZERO); 2495 if (!wwid_table) 2496 goto out; 2497 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 2498 flags = le32toh(event_data->Flags); 2499 2500 /* 2501 * For volume changes, get the WWID for the volume and put it in a 2502 * table to be used in the processing of the IR change event. 2503 */ 2504 for (i = 0; i < event_data->NumElements; i++, element++) { 2505 element_flags = le16toh(element->ElementFlags); 2506 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) && 2507 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) && 2508 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE) 2509 && (element->ReasonCode != 2510 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) 2511 continue; 2512 if ((element_flags & 2513 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) == 2514 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) { 2515 mps_config_get_volume_wwid(sc, 2516 le16toh(element->VolDevHandle), &wwid_table[i]); 2517 } 2518 } 2519 2520 /* 2521 * Check the ReasonCode for each element in the IR event and Add/Remove 2522 * Volumes or Physical Disks of Volumes to/from the mapping table. Use 2523 * the WWIDs gotten above in wwid_table. 2524 */ 2525 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 2526 goto out; 2527 else { 2528 element = (Mpi2EventIrConfigElement_t *)&event_data-> 2529 ConfigElement[0]; 2530 for (i = 0; i < event_data->NumElements; i++, element++) { 2531 if (element->ReasonCode == 2532 MPI2_EVENT_IR_CHANGE_RC_ADDED || 2533 element->ReasonCode == 2534 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) { 2535 map_idx = _mapping_get_ir_mt_idx_from_wwid 2536 (sc, wwid_table[i]); 2537 if (map_idx != MPS_MAPTABLE_BAD_IDX) { 2538 /* 2539 * The volume is already in the mapping 2540 * table. Just update it's info. 2541 */ 2542 mt_entry = &sc->mapping_table[map_idx]; 2543 mt_entry->id = map_idx; 2544 mt_entry->dev_handle = le16toh 2545 (element->VolDevHandle); 2546 mt_entry->device_info = 2547 MPS_DEV_RESERVED | MPS_MAP_IN_USE; 2548 _mapping_update_ir_missing_cnt(sc, 2549 map_idx, element, wwid_table[i]); 2550 continue; 2551 } 2552 2553 /* 2554 * Volume is not in mapping table yet. Find a 2555 * free entry in the mapping table at the 2556 * volume mapping locations. If no entries are 2557 * available, this is an error because it means 2558 * there are more volumes than can be mapped 2559 * and that should never happen for volumes. 2560 */ 2561 map_idx = _mapping_get_free_ir_mt_idx(sc); 2562 if (map_idx == MPS_MAPTABLE_BAD_IDX) 2563 { 2564 mps_dprint(sc, MPS_ERROR | MPS_MAPPING, 2565 "%s: failed to add the volume with " 2566 "handle 0x%04x because there is no " 2567 "free space available in the " 2568 "mapping table\n", __func__, 2569 le16toh(element->VolDevHandle)); 2570 continue; 2571 } 2572 mt_entry = &sc->mapping_table[map_idx]; 2573 mt_entry->physical_id = wwid_table[i]; 2574 mt_entry->id = map_idx; 2575 mt_entry->dev_handle = le16toh(element-> 2576 VolDevHandle); 2577 mt_entry->device_info = MPS_DEV_RESERVED | 2578 MPS_MAP_IN_USE; 2579 _mapping_update_ir_missing_cnt(sc, map_idx, 2580 element, wwid_table[i]); 2581 } else if (element->ReasonCode == 2582 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 2583 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc, 2584 wwid_table[i]); 2585 if (map_idx == MPS_MAPTABLE_BAD_IDX) { 2586 mps_dprint(sc, MPS_MAPPING,"%s: Failed " 2587 "to remove a volume because it has " 2588 "already been removed.\n", 2589 __func__); 2590 continue; 2591 } 2592 _mapping_update_ir_missing_cnt(sc, map_idx, 2593 element, wwid_table[i]); 2594 } else if (element->ReasonCode == 2595 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 2596 map_idx = _mapping_get_mt_idx_from_handle(sc, 2597 le16toh(element->VolDevHandle)); 2598 if (map_idx == MPS_MAPTABLE_BAD_IDX) { 2599 mps_dprint(sc, MPS_MAPPING,"%s: Failed " 2600 "to remove volume with handle " 2601 "0x%04x because it has already " 2602 "been removed.\n", __func__, 2603 le16toh(element->VolDevHandle)); 2604 continue; 2605 } 2606 mt_entry = &sc->mapping_table[map_idx]; 2607 _mapping_update_ir_missing_cnt(sc, map_idx, 2608 element, mt_entry->physical_id); 2609 } 2610 } 2611 } 2612 2613 out: 2614 _mapping_flush_dpm_pages(sc); 2615 free(wwid_table, M_MPT2); 2616 if (sc->pending_map_events) 2617 sc->pending_map_events--; 2618 } 2619 2620 int 2621 mps_mapping_dump(SYSCTL_HANDLER_ARGS) 2622 { 2623 struct mps_softc *sc; 2624 struct dev_mapping_table *mt_entry; 2625 struct sbuf sbuf; 2626 int i, error; 2627 2628 sc = (struct mps_softc *)arg1; 2629 2630 error = sysctl_wire_old_buffer(req, 0); 2631 if (error != 0) 2632 return (error); 2633 sbuf_new_for_sysctl(&sbuf, NULL, 128, req); 2634 2635 sbuf_printf(&sbuf, "\nindex physical_id handle id\n"); 2636 for (i = 0; i < sc->max_devices; i++) { 2637 mt_entry = &sc->mapping_table[i]; 2638 if (mt_entry->physical_id == 0) 2639 continue; 2640 sbuf_printf(&sbuf, "%4d %jx %04x %hd\n", 2641 i, mt_entry->physical_id, mt_entry->dev_handle, 2642 mt_entry->id); 2643 } 2644 error = sbuf_finish(&sbuf); 2645 sbuf_delete(&sbuf); 2646 return (error); 2647 } 2648 2649 int 2650 mps_mapping_encl_dump(SYSCTL_HANDLER_ARGS) 2651 { 2652 struct mps_softc *sc; 2653 struct enc_mapping_table *enc_entry; 2654 struct sbuf sbuf; 2655 int i, error; 2656 2657 sc = (struct mps_softc *)arg1; 2658 2659 error = sysctl_wire_old_buffer(req, 0); 2660 if (error != 0) 2661 return (error); 2662 sbuf_new_for_sysctl(&sbuf, NULL, 128, req); 2663 2664 sbuf_printf(&sbuf, "\nindex enclosure_id handle map_index\n"); 2665 for (i = 0; i < sc->max_enclosures; i++) { 2666 enc_entry = &sc->enclosure_table[i]; 2667 if (enc_entry->enclosure_id == 0) 2668 continue; 2669 sbuf_printf(&sbuf, "%4d %jx %04x %d\n", 2670 i, enc_entry->enclosure_id, enc_entry->enc_handle, 2671 enc_entry->start_index); 2672 } 2673 error = sbuf_finish(&sbuf); 2674 sbuf_delete(&sbuf); 2675 return (error); 2676 } 2677