1 /*- 2 * Copyright (c) 2011-2015 LSI Corp. 3 * Copyright (c) 2013-2016 Avago Technologies 4 * Copyright 2000-2020 Broadcom Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * Broadcom Inc. (LSI) MPT-Fusion Host Adapter FreeBSD 29 */ 30 31 /* TODO Move headers to mprvar */ 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/lock.h> 35 #include <sys/mutex.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/malloc.h> 39 #include <sys/kthread.h> 40 #include <sys/taskqueue.h> 41 #include <sys/bus.h> 42 #include <sys/endian.h> 43 #include <sys/sysctl.h> 44 #include <sys/eventhandler.h> 45 #include <sys/uio.h> 46 #include <machine/bus.h> 47 #include <machine/resource.h> 48 #include <dev/mpr/mpi/mpi2_type.h> 49 #include <dev/mpr/mpi/mpi2.h> 50 #include <dev/mpr/mpi/mpi2_ioc.h> 51 #include <dev/mpr/mpi/mpi2_sas.h> 52 #include <dev/mpr/mpi/mpi2_pci.h> 53 #include <dev/mpr/mpi/mpi2_cnfg.h> 54 #include <dev/mpr/mpi/mpi2_init.h> 55 #include <dev/mpr/mpi/mpi2_tool.h> 56 #include <dev/mpr/mpr_ioctl.h> 57 #include <dev/mpr/mprvar.h> 58 #include <dev/mpr/mpr_mapping.h> 59 60 /** 61 * _mapping_clear_map_entry - Clear a particular mapping entry. 62 * @map_entry: map table entry 63 * 64 * Returns nothing. 65 */ 66 static inline void 67 _mapping_clear_map_entry(struct dev_mapping_table *map_entry) 68 { 69 map_entry->physical_id = 0; 70 map_entry->device_info = 0; 71 map_entry->phy_bits = 0; 72 map_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 73 map_entry->dev_handle = 0; 74 map_entry->id = -1; 75 map_entry->missing_count = 0; 76 map_entry->init_complete = 0; 77 map_entry->TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; 78 } 79 80 /** 81 * _mapping_clear_enc_entry - Clear a particular enclosure table entry. 82 * @enc_entry: enclosure table entry 83 * 84 * Returns nothing. 85 */ 86 static inline void 87 _mapping_clear_enc_entry(struct enc_mapping_table *enc_entry) 88 { 89 enc_entry->enclosure_id = 0; 90 enc_entry->start_index = MPR_MAPTABLE_BAD_IDX; 91 enc_entry->phy_bits = 0; 92 enc_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 93 enc_entry->enc_handle = 0; 94 enc_entry->num_slots = 0; 95 enc_entry->start_slot = 0; 96 enc_entry->missing_count = 0; 97 enc_entry->removal_flag = 0; 98 enc_entry->skip_search = 0; 99 enc_entry->init_complete = 0; 100 } 101 102 /** 103 * _mapping_commit_enc_entry - write a particular enc entry in DPM page0. 104 * @sc: per adapter object 105 * @enc_entry: enclosure table entry 106 * 107 * Returns 0 for success, non-zero for failure. 108 */ 109 static int 110 _mapping_commit_enc_entry(struct mpr_softc *sc, 111 struct enc_mapping_table *et_entry) 112 { 113 Mpi2DriverMap0Entry_t *dpm_entry; 114 struct dev_mapping_table *mt_entry; 115 Mpi2ConfigReply_t mpi_reply; 116 Mpi2DriverMappingPage0_t config_page; 117 118 if (!sc->is_dpm_enable) 119 return 0; 120 121 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 122 memcpy(&config_page.Header, (u8 *) sc->dpm_pg0, 123 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 124 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 125 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 126 dpm_entry += et_entry->dpm_entry_num; 127 dpm_entry->PhysicalIdentifier.Low = 128 ( 0xFFFFFFFF & et_entry->enclosure_id); 129 dpm_entry->PhysicalIdentifier.High = 130 ( et_entry->enclosure_id >> 32); 131 mt_entry = &sc->mapping_table[et_entry->start_index]; 132 dpm_entry->DeviceIndex = htole16(mt_entry->id); 133 dpm_entry->MappingInformation = et_entry->num_slots; 134 dpm_entry->MappingInformation <<= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 135 dpm_entry->MappingInformation |= et_entry->missing_count; 136 dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation); 137 dpm_entry->PhysicalBitsMapping = htole32(et_entry->phy_bits); 138 dpm_entry->Reserved1 = 0; 139 140 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for enclosure.\n", 141 __func__, et_entry->dpm_entry_num); 142 memcpy(&config_page.Entry, (u8 *)dpm_entry, 143 sizeof(Mpi2DriverMap0Entry_t)); 144 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 145 et_entry->dpm_entry_num)) { 146 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM " 147 "entry %d for enclosure failed.\n", __func__, 148 et_entry->dpm_entry_num); 149 dpm_entry->MappingInformation = le16toh(dpm_entry-> 150 MappingInformation); 151 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 152 dpm_entry->PhysicalBitsMapping = 153 le32toh(dpm_entry->PhysicalBitsMapping); 154 return -1; 155 } 156 dpm_entry->MappingInformation = le16toh(dpm_entry-> 157 MappingInformation); 158 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 159 dpm_entry->PhysicalBitsMapping = 160 le32toh(dpm_entry->PhysicalBitsMapping); 161 return 0; 162 } 163 164 /** 165 * _mapping_commit_map_entry - write a particular map table entry in DPM page0. 166 * @sc: per adapter object 167 * @mt_entry: mapping table entry 168 * 169 * Returns 0 for success, non-zero for failure. 170 */ 171 172 static int 173 _mapping_commit_map_entry(struct mpr_softc *sc, 174 struct dev_mapping_table *mt_entry) 175 { 176 Mpi2DriverMap0Entry_t *dpm_entry; 177 Mpi2ConfigReply_t mpi_reply; 178 Mpi2DriverMappingPage0_t config_page; 179 180 if (!sc->is_dpm_enable) 181 return 0; 182 183 /* 184 * It's possible that this Map Entry points to a BAD DPM index. This 185 * can happen if the Map Entry is a for a missing device and the DPM 186 * entry that was being used by this device is now being used by some 187 * new device. So, check for a BAD DPM index and just return if so. 188 */ 189 if (mt_entry->dpm_entry_num == MPR_DPM_BAD_IDX) { 190 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry location for target " 191 "%d is invalid. DPM will not be written.\n", __func__, 192 mt_entry->id); 193 return 0; 194 } 195 196 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 197 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 198 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 199 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *) sc->dpm_pg0 + 200 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 201 dpm_entry = dpm_entry + mt_entry->dpm_entry_num; 202 dpm_entry->PhysicalIdentifier.Low = (0xFFFFFFFF & 203 mt_entry->physical_id); 204 dpm_entry->PhysicalIdentifier.High = (mt_entry->physical_id >> 32); 205 dpm_entry->DeviceIndex = htole16(mt_entry->id); 206 dpm_entry->MappingInformation = htole16(mt_entry->missing_count); 207 dpm_entry->PhysicalBitsMapping = 0; 208 dpm_entry->Reserved1 = 0; 209 memcpy(&config_page.Entry, (u8 *)dpm_entry, 210 sizeof(Mpi2DriverMap0Entry_t)); 211 212 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for target %d.\n", 213 __func__, mt_entry->dpm_entry_num, mt_entry->id); 214 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 215 mt_entry->dpm_entry_num)) { 216 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM " 217 "entry %d for target %d failed.\n", __func__, 218 mt_entry->dpm_entry_num, mt_entry->id); 219 dpm_entry->MappingInformation = le16toh(dpm_entry-> 220 MappingInformation); 221 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 222 return -1; 223 } 224 225 dpm_entry->MappingInformation = le16toh(dpm_entry->MappingInformation); 226 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 227 return 0; 228 } 229 230 /** 231 * _mapping_get_ir_maprange - get start and end index for IR map range. 232 * @sc: per adapter object 233 * @start_idx: place holder for start index 234 * @end_idx: place holder for end index 235 * 236 * The IR volumes can be mapped either at start or end of the mapping table 237 * this function gets the detail of where IR volume mapping starts and ends 238 * in the device mapping table 239 * 240 * Returns nothing. 241 */ 242 static void 243 _mapping_get_ir_maprange(struct mpr_softc *sc, u32 *start_idx, u32 *end_idx) 244 { 245 u16 volume_mapping_flags; 246 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 247 248 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 249 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 250 if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) { 251 *start_idx = 0; 252 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 253 *start_idx = 1; 254 } else 255 *start_idx = sc->max_devices - sc->max_volumes; 256 *end_idx = *start_idx + sc->max_volumes - 1; 257 } 258 259 /** 260 * _mapping_get_enc_idx_from_id - get enclosure index from enclosure ID 261 * @sc: per adapter object 262 * @enc_id: enclosure logical identifier 263 * 264 * Returns the index of enclosure entry on success or bad index. 265 */ 266 static u8 267 _mapping_get_enc_idx_from_id(struct mpr_softc *sc, u64 enc_id, 268 u64 phy_bits) 269 { 270 struct enc_mapping_table *et_entry; 271 u8 enc_idx = 0; 272 273 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 274 et_entry = &sc->enclosure_table[enc_idx]; 275 if ((et_entry->enclosure_id == le64toh(enc_id)) && 276 (!et_entry->phy_bits || (et_entry->phy_bits & 277 le32toh(phy_bits)))) 278 return enc_idx; 279 } 280 return MPR_ENCTABLE_BAD_IDX; 281 } 282 283 /** 284 * _mapping_get_enc_idx_from_handle - get enclosure index from handle 285 * @sc: per adapter object 286 * @enc_id: enclosure handle 287 * 288 * Returns the index of enclosure entry on success or bad index. 289 */ 290 static u8 291 _mapping_get_enc_idx_from_handle(struct mpr_softc *sc, u16 handle) 292 { 293 struct enc_mapping_table *et_entry; 294 u8 enc_idx = 0; 295 296 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 297 et_entry = &sc->enclosure_table[enc_idx]; 298 if (et_entry->missing_count) 299 continue; 300 if (et_entry->enc_handle == handle) 301 return enc_idx; 302 } 303 return MPR_ENCTABLE_BAD_IDX; 304 } 305 306 /** 307 * _mapping_get_high_missing_et_idx - get missing enclosure index 308 * @sc: per adapter object 309 * 310 * Search through the enclosure table and identifies the enclosure entry 311 * with high missing count and returns it's index 312 * 313 * Returns the index of enclosure entry on success or bad index. 314 */ 315 static u8 316 _mapping_get_high_missing_et_idx(struct mpr_softc *sc) 317 { 318 struct enc_mapping_table *et_entry; 319 u8 high_missing_count = 0; 320 u8 enc_idx, high_idx = MPR_ENCTABLE_BAD_IDX; 321 322 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 323 et_entry = &sc->enclosure_table[enc_idx]; 324 if ((et_entry->missing_count > high_missing_count) && 325 !et_entry->skip_search) { 326 high_missing_count = et_entry->missing_count; 327 high_idx = enc_idx; 328 } 329 } 330 return high_idx; 331 } 332 333 /** 334 * _mapping_get_high_missing_mt_idx - get missing map table index 335 * @sc: per adapter object 336 * 337 * Search through the map table and identifies the device entry 338 * with high missing count and returns it's index 339 * 340 * Returns the index of map table entry on success or bad index. 341 */ 342 static u32 343 _mapping_get_high_missing_mt_idx(struct mpr_softc *sc) 344 { 345 u32 map_idx, high_idx = MPR_MAPTABLE_BAD_IDX; 346 u8 high_missing_count = 0; 347 u32 start_idx, end_idx, start_idx_ir, end_idx_ir; 348 struct dev_mapping_table *mt_entry; 349 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 350 351 start_idx = 0; 352 start_idx_ir = 0; 353 end_idx_ir = 0; 354 end_idx = sc->max_devices; 355 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 356 start_idx = 1; 357 if (sc->ir_firmware) { 358 _mapping_get_ir_maprange(sc, &start_idx_ir, &end_idx_ir); 359 if (start_idx == start_idx_ir) 360 start_idx = end_idx_ir + 1; 361 else 362 end_idx = start_idx_ir; 363 } 364 mt_entry = &sc->mapping_table[start_idx]; 365 for (map_idx = start_idx; map_idx < end_idx; map_idx++, mt_entry++) { 366 if (mt_entry->missing_count > high_missing_count) { 367 high_missing_count = mt_entry->missing_count; 368 high_idx = map_idx; 369 } 370 } 371 return high_idx; 372 } 373 374 /** 375 * _mapping_get_ir_mt_idx_from_wwid - get map table index from volume WWID 376 * @sc: per adapter object 377 * @wwid: world wide unique ID of the volume 378 * 379 * Returns the index of map table entry on success or bad index. 380 */ 381 static u32 382 _mapping_get_ir_mt_idx_from_wwid(struct mpr_softc *sc, u64 wwid) 383 { 384 u32 start_idx, end_idx, map_idx; 385 struct dev_mapping_table *mt_entry; 386 387 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 388 mt_entry = &sc->mapping_table[start_idx]; 389 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 390 if (mt_entry->physical_id == wwid) 391 return map_idx; 392 393 return MPR_MAPTABLE_BAD_IDX; 394 } 395 396 /** 397 * _mapping_get_mt_idx_from_id - get map table index from a device ID 398 * @sc: per adapter object 399 * @dev_id: device identifer (SAS Address) 400 * 401 * Returns the index of map table entry on success or bad index. 402 */ 403 static u32 404 _mapping_get_mt_idx_from_id(struct mpr_softc *sc, u64 dev_id) 405 { 406 u32 map_idx; 407 struct dev_mapping_table *mt_entry; 408 409 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 410 mt_entry = &sc->mapping_table[map_idx]; 411 if (mt_entry->physical_id == dev_id) 412 return map_idx; 413 } 414 return MPR_MAPTABLE_BAD_IDX; 415 } 416 417 /** 418 * _mapping_get_ir_mt_idx_from_handle - get map table index from volume handle 419 * @sc: per adapter object 420 * @wwid: volume device handle 421 * 422 * Returns the index of map table entry on success or bad index. 423 */ 424 static u32 425 _mapping_get_ir_mt_idx_from_handle(struct mpr_softc *sc, u16 volHandle) 426 { 427 u32 start_idx, end_idx, map_idx; 428 struct dev_mapping_table *mt_entry; 429 430 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 431 mt_entry = &sc->mapping_table[start_idx]; 432 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 433 if (mt_entry->dev_handle == volHandle) 434 return map_idx; 435 436 return MPR_MAPTABLE_BAD_IDX; 437 } 438 439 /** 440 * _mapping_get_mt_idx_from_handle - get map table index from handle 441 * @sc: per adapter object 442 * @dev_id: device handle 443 * 444 * Returns the index of map table entry on success or bad index. 445 */ 446 static u32 447 _mapping_get_mt_idx_from_handle(struct mpr_softc *sc, u16 handle) 448 { 449 u32 map_idx; 450 struct dev_mapping_table *mt_entry; 451 452 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 453 mt_entry = &sc->mapping_table[map_idx]; 454 if (mt_entry->dev_handle == handle) 455 return map_idx; 456 } 457 return MPR_MAPTABLE_BAD_IDX; 458 } 459 460 /** 461 * _mapping_get_free_ir_mt_idx - get first free index for a volume 462 * @sc: per adapter object 463 * 464 * Search through mapping table for free index for a volume and if no free 465 * index then looks for a volume with high mapping index 466 * 467 * Returns the index of map table entry on success or bad index. 468 */ 469 static u32 470 _mapping_get_free_ir_mt_idx(struct mpr_softc *sc) 471 { 472 u8 high_missing_count = 0; 473 u32 start_idx, end_idx, map_idx; 474 u32 high_idx = MPR_MAPTABLE_BAD_IDX; 475 struct dev_mapping_table *mt_entry; 476 477 /* 478 * The IN_USE flag should be clear if the entry is available to use. 479 * This flag is cleared on initialization and and when a volume is 480 * deleted. All other times this flag should be set. If, for some 481 * reason, a free entry cannot be found, look for the entry with the 482 * highest missing count just in case there is one. 483 */ 484 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 485 mt_entry = &sc->mapping_table[start_idx]; 486 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 487 if (!(mt_entry->device_info & MPR_MAP_IN_USE)) 488 return map_idx; 489 490 if (mt_entry->missing_count > high_missing_count) { 491 high_missing_count = mt_entry->missing_count; 492 high_idx = map_idx; 493 } 494 } 495 496 if (high_idx == MPR_MAPTABLE_BAD_IDX) { 497 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Could not find a " 498 "free entry in the mapping table for a Volume. The mapping " 499 "table is probably corrupt.\n", __func__); 500 } 501 502 return high_idx; 503 } 504 505 /** 506 * _mapping_get_free_mt_idx - get first free index for a device 507 * @sc: per adapter object 508 * @start_idx: offset in the table to start search 509 * 510 * Returns the index of map table entry on success or bad index. 511 */ 512 static u32 513 _mapping_get_free_mt_idx(struct mpr_softc *sc, u32 start_idx) 514 { 515 u32 map_idx, max_idx = sc->max_devices; 516 struct dev_mapping_table *mt_entry = &sc->mapping_table[start_idx]; 517 u16 volume_mapping_flags; 518 519 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 520 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 521 if (sc->ir_firmware && (volume_mapping_flags == 522 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) 523 max_idx -= sc->max_volumes; 524 525 for (map_idx = start_idx; map_idx < max_idx; map_idx++, mt_entry++) 526 if (!(mt_entry->device_info & (MPR_MAP_IN_USE | 527 MPR_DEV_RESERVED))) 528 return map_idx; 529 530 return MPR_MAPTABLE_BAD_IDX; 531 } 532 533 /** 534 * _mapping_get_dpm_idx_from_id - get DPM index from ID 535 * @sc: per adapter object 536 * @id: volume WWID or enclosure ID or device ID 537 * 538 * Returns the index of DPM entry on success or bad index. 539 */ 540 static u16 541 _mapping_get_dpm_idx_from_id(struct mpr_softc *sc, u64 id, u32 phy_bits) 542 { 543 u16 entry_num; 544 uint64_t PhysicalIdentifier; 545 Mpi2DriverMap0Entry_t *dpm_entry; 546 547 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 548 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 549 PhysicalIdentifier = dpm_entry->PhysicalIdentifier.High; 550 PhysicalIdentifier = (PhysicalIdentifier << 32) | 551 dpm_entry->PhysicalIdentifier.Low; 552 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 553 dpm_entry++) 554 if ((id == PhysicalIdentifier) && 555 (!phy_bits || !dpm_entry->PhysicalBitsMapping || 556 (phy_bits & dpm_entry->PhysicalBitsMapping))) 557 return entry_num; 558 559 return MPR_DPM_BAD_IDX; 560 } 561 562 /** 563 * _mapping_get_free_dpm_idx - get first available DPM index 564 * @sc: per adapter object 565 * 566 * Returns the index of DPM entry on success or bad index. 567 */ 568 static u32 569 _mapping_get_free_dpm_idx(struct mpr_softc *sc) 570 { 571 u16 entry_num; 572 Mpi2DriverMap0Entry_t *dpm_entry; 573 u16 current_entry = MPR_DPM_BAD_IDX, missing_cnt, high_missing_cnt = 0; 574 u64 physical_id; 575 struct dev_mapping_table *mt_entry; 576 u32 map_idx; 577 578 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 579 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 580 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 581 dpm_entry += entry_num; 582 missing_cnt = dpm_entry->MappingInformation & 583 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 584 585 /* 586 * If entry is used and not missing, then this entry can't be 587 * used. Look at next one. 588 */ 589 if (sc->dpm_entry_used[entry_num] && !missing_cnt) 590 continue; 591 592 /* 593 * If this entry is not used at all, then the missing count 594 * doesn't matter. Just use this one. Otherwise, keep looking 595 * and make sure the entry with the highest missing count is 596 * used. 597 */ 598 if (!sc->dpm_entry_used[entry_num]) { 599 current_entry = entry_num; 600 break; 601 } 602 if ((current_entry == MPR_DPM_BAD_IDX) || 603 (missing_cnt > high_missing_cnt)) { 604 current_entry = entry_num; 605 high_missing_cnt = missing_cnt; 606 } 607 } 608 609 /* 610 * If an entry has been found to use and it's already marked as used 611 * it means that some device was already using this entry but it's 612 * missing, and that means that the connection between the missing 613 * device's DPM entry and the mapping table needs to be cleared. To do 614 * this, use the Physical ID of the old device still in the DPM entry 615 * to find its mapping table entry, then mark its DPM entry as BAD. 616 */ 617 if ((current_entry != MPR_DPM_BAD_IDX) && 618 sc->dpm_entry_used[current_entry]) { 619 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 620 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 621 dpm_entry += current_entry; 622 physical_id = dpm_entry->PhysicalIdentifier.High; 623 physical_id = (physical_id << 32) | 624 dpm_entry->PhysicalIdentifier.Low; 625 map_idx = _mapping_get_mt_idx_from_id(sc, physical_id); 626 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 627 mt_entry = &sc->mapping_table[map_idx]; 628 mt_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 629 } 630 } 631 return current_entry; 632 } 633 634 /** 635 * _mapping_update_ir_missing_cnt - Updates missing count for a volume 636 * @sc: per adapter object 637 * @map_idx: map table index of the volume 638 * @element: IR configuration change element 639 * @wwid: IR volume ID. 640 * 641 * Updates the missing count in the map table and in the DPM entry for a volume 642 * 643 * Returns nothing. 644 */ 645 static void 646 _mapping_update_ir_missing_cnt(struct mpr_softc *sc, u32 map_idx, 647 Mpi2EventIrConfigElement_t *element, u64 wwid) 648 { 649 struct dev_mapping_table *mt_entry; 650 u8 missing_cnt, reason = element->ReasonCode, update_dpm = 1; 651 u16 dpm_idx; 652 Mpi2DriverMap0Entry_t *dpm_entry; 653 654 /* 655 * Depending on the reason code, update the missing count. Always set 656 * the init_complete flag when here, so just do it first. That flag is 657 * used for volumes to make sure that the DPM entry has been updated. 658 * When a volume is deleted, clear the map entry's IN_USE flag so that 659 * the entry can be used again if another volume is created. Also clear 660 * its dev_handle entry so that other functions can't find this volume 661 * by the handle, since it's not defined any longer. 662 */ 663 mt_entry = &sc->mapping_table[map_idx]; 664 mt_entry->init_complete = 1; 665 if ((reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) || 666 (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) { 667 mt_entry->missing_count = 0; 668 } else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 669 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT) 670 mt_entry->missing_count++; 671 672 mt_entry->device_info &= ~MPR_MAP_IN_USE; 673 mt_entry->dev_handle = 0; 674 } 675 676 /* 677 * If persistent mapping is enabled, update the DPM with the new missing 678 * count for the volume. If the DPM index is bad, get a free one. If 679 * it's bad for a volume that's being deleted do nothing because that 680 * volume doesn't have a DPM entry. 681 */ 682 if (!sc->is_dpm_enable) 683 return; 684 dpm_idx = mt_entry->dpm_entry_num; 685 if (dpm_idx == MPR_DPM_BAD_IDX) { 686 if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) 687 { 688 mpr_dprint(sc, MPR_MAPPING, "%s: Volume being deleted " 689 "is not in DPM so DPM missing count will not be " 690 "updated.\n", __func__); 691 return; 692 } 693 } 694 if (dpm_idx == MPR_DPM_BAD_IDX) 695 dpm_idx = _mapping_get_free_dpm_idx(sc); 696 697 /* 698 * Got the DPM entry for the volume or found a free DPM entry if this is 699 * a new volume. Check if the current information is outdated. 700 */ 701 if (dpm_idx != MPR_DPM_BAD_IDX) { 702 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 703 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 704 dpm_entry += dpm_idx; 705 missing_cnt = dpm_entry->MappingInformation & 706 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 707 if ((mt_entry->physical_id == 708 le64toh(((u64)dpm_entry->PhysicalIdentifier.High << 32) | 709 (u64)dpm_entry->PhysicalIdentifier.Low)) && (missing_cnt == 710 mt_entry->missing_count)) { 711 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry for volume " 712 "with target ID %d does not require an update.\n", 713 __func__, mt_entry->id); 714 update_dpm = 0; 715 } 716 } 717 718 /* 719 * Update the volume's persistent info if it's new or the ID or missing 720 * count has changed. If a good DPM index has not been found by now, 721 * there is no space left in the DPM table. 722 */ 723 if ((dpm_idx != MPR_DPM_BAD_IDX) && update_dpm) { 724 mpr_dprint(sc, MPR_MAPPING, "%s: Update DPM entry for volume " 725 "with target ID %d.\n", __func__, mt_entry->id); 726 mt_entry->dpm_entry_num = dpm_idx; 727 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 728 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 729 dpm_entry += dpm_idx; 730 dpm_entry->PhysicalIdentifier.Low = 731 (0xFFFFFFFF & mt_entry->physical_id); 732 dpm_entry->PhysicalIdentifier.High = 733 (mt_entry->physical_id >> 32); 734 dpm_entry->DeviceIndex = map_idx; 735 dpm_entry->MappingInformation = mt_entry->missing_count; 736 dpm_entry->PhysicalBitsMapping = 0; 737 dpm_entry->Reserved1 = 0; 738 sc->dpm_flush_entry[dpm_idx] = 1; 739 sc->dpm_entry_used[dpm_idx] = 1; 740 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 741 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: No space to add an " 742 "entry in the DPM table for volume with target ID %d.\n", 743 __func__, mt_entry->id); 744 } 745 } 746 747 /** 748 * _mapping_add_to_removal_table - add DPM index to the removal table 749 * @sc: per adapter object 750 * @dpm_idx: Index of DPM entry to remove 751 * 752 * Adds a DPM entry number to the removal table. 753 * 754 * Returns nothing. 755 */ 756 static void 757 _mapping_add_to_removal_table(struct mpr_softc *sc, u16 dpm_idx) 758 { 759 struct map_removal_table *remove_entry; 760 u32 i; 761 762 /* 763 * This is only used to remove entries from the DPM in the controller. 764 * If DPM is not enabled, just return. 765 */ 766 if (!sc->is_dpm_enable) 767 return; 768 769 /* 770 * Find the first available removal_table entry and add the new entry 771 * there. 772 */ 773 remove_entry = sc->removal_table; 774 for (i = 0; i < sc->max_devices; i++, remove_entry++) { 775 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) 776 continue; 777 778 mpr_dprint(sc, MPR_MAPPING, "%s: Adding DPM entry %d to table " 779 "for removal.\n", __func__, dpm_idx); 780 remove_entry->dpm_entry_num = dpm_idx; 781 break; 782 } 783 784 } 785 786 /** 787 * _mapping_inc_missing_count 788 * @sc: per adapter object 789 * @map_idx: index into the mapping table for the device that is missing 790 * 791 * Increment the missing count in the mapping table for a SAS, SATA, or PCIe 792 * device that is not responding. If Persitent Mapping is used, increment the 793 * DPM entry as well. Currently, this function is only called if the target 794 * goes missing, so after initialization has completed. This means that the 795 * missing count can only go from 0 to 1 here. The missing count is incremented 796 * during initialization as well, so that's where a target's missing count can 797 * go past 1. 798 * 799 * Returns nothing. 800 */ 801 static void 802 _mapping_inc_missing_count(struct mpr_softc *sc, u32 map_idx) 803 { 804 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 805 struct dev_mapping_table *mt_entry; 806 Mpi2DriverMap0Entry_t *dpm_entry; 807 808 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 809 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: device is already " 810 "removed from mapping table\n", __func__); 811 return; 812 } 813 mt_entry = &sc->mapping_table[map_idx]; 814 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT) 815 mt_entry->missing_count++; 816 817 /* 818 * When using Enc/Slot mapping, when a device is removed, it's mapping 819 * table information should be cleared. Otherwise, the target ID will 820 * be incorrect if this same device is re-added to a different slot. 821 */ 822 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 823 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 824 _mapping_clear_map_entry(mt_entry); 825 } 826 827 /* 828 * When using device mapping, update the missing count in the DPM entry, 829 * but only if the missing count has changed. 830 */ 831 if (((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 832 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) && 833 sc->is_dpm_enable && 834 mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 835 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 836 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 837 dpm_entry += mt_entry->dpm_entry_num; 838 if (dpm_entry->MappingInformation != mt_entry->missing_count) { 839 dpm_entry->MappingInformation = mt_entry->missing_count; 840 sc->dpm_flush_entry[mt_entry->dpm_entry_num] = 1; 841 } 842 } 843 } 844 845 /** 846 * _mapping_update_missing_count - Update missing count for a device 847 * @sc: per adapter object 848 * @topo_change: Topology change event entry 849 * 850 * Search through the topology change list and if any device is found not 851 * responding it's associated map table entry and DPM entry is updated 852 * 853 * Returns nothing. 854 */ 855 static void 856 _mapping_update_missing_count(struct mpr_softc *sc, 857 struct _map_topology_change *topo_change) 858 { 859 u8 entry; 860 struct _map_phy_change *phy_change; 861 u32 map_idx; 862 863 for (entry = 0; entry < topo_change->num_entries; entry++) { 864 phy_change = &topo_change->phy_details[entry]; 865 if (!phy_change->dev_handle || (phy_change->reason != 866 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)) 867 continue; 868 map_idx = _mapping_get_mt_idx_from_handle(sc, phy_change-> 869 dev_handle); 870 phy_change->is_processed = 1; 871 _mapping_inc_missing_count(sc, map_idx); 872 } 873 } 874 875 /** 876 * _mapping_update_pcie_missing_count - Update missing count for a PCIe device 877 * @sc: per adapter object 878 * @topo_change: Topology change event entry 879 * 880 * Search through the PCIe topology change list and if any device is found not 881 * responding it's associated map table entry and DPM entry is updated 882 * 883 * Returns nothing. 884 */ 885 static void 886 _mapping_update_pcie_missing_count(struct mpr_softc *sc, 887 struct _map_pcie_topology_change *topo_change) 888 { 889 u8 entry; 890 struct _map_port_change *port_change; 891 u32 map_idx; 892 893 for (entry = 0; entry < topo_change->num_entries; entry++) { 894 port_change = &topo_change->port_details[entry]; 895 if (!port_change->dev_handle || (port_change->reason != 896 MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING)) 897 continue; 898 map_idx = _mapping_get_mt_idx_from_handle(sc, port_change-> 899 dev_handle); 900 port_change->is_processed = 1; 901 _mapping_inc_missing_count(sc, map_idx); 902 } 903 } 904 905 /** 906 * _mapping_find_enc_map_space -find map table entries for enclosure 907 * @sc: per adapter object 908 * @et_entry: enclosure entry 909 * 910 * Search through the mapping table defragment it and provide contiguous 911 * space in map table for a particular enclosure entry 912 * 913 * Returns start index in map table or bad index. 914 */ 915 static u32 916 _mapping_find_enc_map_space(struct mpr_softc *sc, 917 struct enc_mapping_table *et_entry) 918 { 919 u16 vol_mapping_flags; 920 u32 skip_count, end_of_table, map_idx, enc_idx; 921 u16 num_found; 922 u32 start_idx = MPR_MAPTABLE_BAD_IDX; 923 struct dev_mapping_table *mt_entry; 924 struct enc_mapping_table *enc_entry; 925 unsigned char done_flag = 0, found_space; 926 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 927 928 skip_count = sc->num_rsvd_entries; 929 num_found = 0; 930 931 vol_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 932 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 933 934 /* 935 * The end of the mapping table depends on where volumes are kept, if 936 * IR is enabled. 937 */ 938 if (!sc->ir_firmware) 939 end_of_table = sc->max_devices; 940 else if (vol_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) 941 end_of_table = sc->max_devices; 942 else 943 end_of_table = sc->max_devices - sc->max_volumes; 944 945 /* 946 * The skip_count is the number of entries that are reserved at the 947 * beginning of the mapping table. But, it does not include the number 948 * of Physical IDs that are reserved for direct attached devices. Look 949 * through the mapping table after these reserved entries to see if 950 * the devices for this enclosure are already mapped. The PHY bit check 951 * is used to make sure that at least one PHY bit is common between the 952 * enclosure and the device that is already mapped. 953 */ 954 mpr_dprint(sc, MPR_MAPPING, "%s: Looking for space in the mapping " 955 "table for added enclosure.\n", __func__); 956 for (map_idx = (max_num_phy_ids + skip_count); 957 map_idx < end_of_table; map_idx++) { 958 mt_entry = &sc->mapping_table[map_idx]; 959 if ((et_entry->enclosure_id == mt_entry->physical_id) && 960 (!mt_entry->phy_bits || (mt_entry->phy_bits & 961 et_entry->phy_bits))) { 962 num_found += 1; 963 if (num_found == et_entry->num_slots) { 964 start_idx = (map_idx - num_found) + 1; 965 mpr_dprint(sc, MPR_MAPPING, "%s: Found space " 966 "in the mapping for enclosure at map index " 967 "%d.\n", __func__, start_idx); 968 return start_idx; 969 } 970 } else 971 num_found = 0; 972 } 973 974 /* 975 * If the enclosure's devices are not mapped already, look for 976 * contiguous entries in the mapping table that are not reserved. If 977 * enough entries are found, return the starting index for that space. 978 */ 979 num_found = 0; 980 for (map_idx = (max_num_phy_ids + skip_count); 981 map_idx < end_of_table; map_idx++) { 982 mt_entry = &sc->mapping_table[map_idx]; 983 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) { 984 num_found += 1; 985 if (num_found == et_entry->num_slots) { 986 start_idx = (map_idx - num_found) + 1; 987 mpr_dprint(sc, MPR_MAPPING, "%s: Found space " 988 "in the mapping for enclosure at map index " 989 "%d.\n", __func__, start_idx); 990 return start_idx; 991 } 992 } else 993 num_found = 0; 994 } 995 996 /* 997 * If here, it means that not enough space in the mapping table was 998 * found to support this enclosure, so go through the enclosure table to 999 * see if any enclosure entries have a missing count. If so, get the 1000 * enclosure with the highest missing count and check it to see if there 1001 * is enough space for the new enclosure. 1002 */ 1003 while (!done_flag) { 1004 enc_idx = _mapping_get_high_missing_et_idx(sc); 1005 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1006 mpr_dprint(sc, MPR_MAPPING, "%s: Not enough space was " 1007 "found in the mapping for the added enclosure.\n", 1008 __func__); 1009 return MPR_MAPTABLE_BAD_IDX; 1010 } 1011 1012 /* 1013 * Found a missing enclosure. Set the skip_search flag so this 1014 * enclosure is not checked again for a high missing count if 1015 * the loop continues. This way, all missing enclosures can 1016 * have their space added together to find enough space in the 1017 * mapping table for the added enclosure. The space must be 1018 * contiguous. 1019 */ 1020 mpr_dprint(sc, MPR_MAPPING, "%s: Space from a missing " 1021 "enclosure was found.\n", __func__); 1022 enc_entry = &sc->enclosure_table[enc_idx]; 1023 enc_entry->skip_search = 1; 1024 1025 /* 1026 * Unmark all of the missing enclosure's device's reserved 1027 * space. These will be remarked as reserved if this missing 1028 * enclosure's space is not used. 1029 */ 1030 mpr_dprint(sc, MPR_MAPPING, "%s: Clear the reserved flag for " 1031 "all of the map entries for the enclosure.\n", __func__); 1032 mt_entry = &sc->mapping_table[enc_entry->start_index]; 1033 for (map_idx = enc_entry->start_index; map_idx < 1034 (enc_entry->start_index + enc_entry->num_slots); map_idx++, 1035 mt_entry++) 1036 mt_entry->device_info &= ~MPR_DEV_RESERVED; 1037 1038 /* 1039 * Now that space has been unreserved, check again to see if 1040 * enough space is available for the new enclosure. 1041 */ 1042 mpr_dprint(sc, MPR_MAPPING, "%s: Check if new mapping space is " 1043 "enough for the new enclosure.\n", __func__); 1044 found_space = 0; 1045 num_found = 0; 1046 for (map_idx = (max_num_phy_ids + skip_count); 1047 map_idx < end_of_table; map_idx++) { 1048 mt_entry = &sc->mapping_table[map_idx]; 1049 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) { 1050 num_found += 1; 1051 if (num_found == et_entry->num_slots) { 1052 start_idx = (map_idx - num_found) + 1; 1053 found_space = 1; 1054 break; 1055 } 1056 } else 1057 num_found = 0; 1058 } 1059 if (!found_space) 1060 continue; 1061 1062 /* 1063 * If enough space was found, all of the missing enclosures that 1064 * will be used for the new enclosure must be added to the 1065 * removal table. Then all mappings for the enclosure's devices 1066 * and for the enclosure itself need to be cleared. There may be 1067 * more than one enclosure to add to the removal table and 1068 * clear. 1069 */ 1070 mpr_dprint(sc, MPR_MAPPING, "%s: Found space in the mapping " 1071 "for enclosure at map index %d.\n", __func__, start_idx); 1072 for (map_idx = start_idx; map_idx < (start_idx + num_found); 1073 map_idx++) { 1074 enc_entry = sc->enclosure_table; 1075 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1076 enc_idx++, enc_entry++) { 1077 if (map_idx < enc_entry->start_index || 1078 map_idx > (enc_entry->start_index + 1079 enc_entry->num_slots)) 1080 continue; 1081 if (!enc_entry->removal_flag) { 1082 mpr_dprint(sc, MPR_MAPPING, "%s: " 1083 "Enclosure %d will be removed from " 1084 "the mapping table.\n", __func__, 1085 enc_idx); 1086 enc_entry->removal_flag = 1; 1087 _mapping_add_to_removal_table(sc, 1088 enc_entry->dpm_entry_num); 1089 } 1090 mt_entry = &sc->mapping_table[map_idx]; 1091 _mapping_clear_map_entry(mt_entry); 1092 if (map_idx == (enc_entry->start_index + 1093 enc_entry->num_slots - 1)) 1094 _mapping_clear_enc_entry(et_entry); 1095 } 1096 } 1097 1098 /* 1099 * During the search for space for this enclosure, some entries 1100 * in the mapping table may have been unreserved. Go back and 1101 * change all of these to reserved again. Only the enclosures 1102 * with the removal_flag set should be left as unreserved. The 1103 * skip_search flag needs to be cleared as well so that the 1104 * enclosure's space will be looked at the next time space is 1105 * needed. 1106 */ 1107 enc_entry = sc->enclosure_table; 1108 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1109 enc_idx++, enc_entry++) { 1110 if (!enc_entry->removal_flag) { 1111 mpr_dprint(sc, MPR_MAPPING, "%s: Reset the " 1112 "reserved flag for all of the map entries " 1113 "for enclosure %d.\n", __func__, enc_idx); 1114 mt_entry = &sc->mapping_table[enc_entry-> 1115 start_index]; 1116 for (map_idx = enc_entry->start_index; map_idx < 1117 (enc_entry->start_index + 1118 enc_entry->num_slots); map_idx++, 1119 mt_entry++) 1120 mt_entry->device_info |= 1121 MPR_DEV_RESERVED; 1122 et_entry->skip_search = 0; 1123 } 1124 } 1125 done_flag = 1; 1126 } 1127 return start_idx; 1128 } 1129 1130 /** 1131 * _mapping_get_dev_info -get information about newly added devices 1132 * @sc: per adapter object 1133 * @topo_change: Topology change event entry 1134 * 1135 * Search through the topology change event list and issues sas device pg0 1136 * requests for the newly added device and reserved entries in tables 1137 * 1138 * Returns nothing 1139 */ 1140 static void 1141 _mapping_get_dev_info(struct mpr_softc *sc, 1142 struct _map_topology_change *topo_change) 1143 { 1144 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1145 Mpi2ConfigReply_t mpi_reply; 1146 Mpi2SasDevicePage0_t sas_device_pg0; 1147 u8 entry, enc_idx, phy_idx; 1148 u32 map_idx, index, device_info; 1149 struct _map_phy_change *phy_change, *tmp_phy_change; 1150 uint64_t sas_address; 1151 struct enc_mapping_table *et_entry; 1152 struct dev_mapping_table *mt_entry; 1153 u8 add_code = MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED; 1154 int rc = 1; 1155 1156 for (entry = 0; entry < topo_change->num_entries; entry++) { 1157 phy_change = &topo_change->phy_details[entry]; 1158 if (phy_change->is_processed || !phy_change->dev_handle || 1159 phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) 1160 continue; 1161 1162 if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, 1163 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 1164 phy_change->dev_handle)) { 1165 phy_change->is_processed = 1; 1166 continue; 1167 } 1168 1169 /* 1170 * Always get SATA Identify information because this is used 1171 * to determine if Start/Stop Unit should be sent to the drive 1172 * when the system is shutdown. 1173 */ 1174 device_info = le32toh(sas_device_pg0.DeviceInfo); 1175 sas_address = le32toh(sas_device_pg0.SASAddress.High); 1176 sas_address = (sas_address << 32) | 1177 le32toh(sas_device_pg0.SASAddress.Low); 1178 if ((device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1179 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)) { 1180 rc = mprsas_get_sas_address_for_sata_disk(sc, 1181 &sas_address, phy_change->dev_handle, device_info, 1182 &phy_change->is_SATA_SSD); 1183 if (rc) { 1184 mpr_dprint(sc, MPR_ERROR, "%s: failed to get " 1185 "disk type (SSD or HDD) and SAS Address " 1186 "for SATA device with handle 0x%04x\n", 1187 __func__, phy_change->dev_handle); 1188 } 1189 } 1190 1191 phy_change->physical_id = sas_address; 1192 phy_change->slot = le16toh(sas_device_pg0.Slot); 1193 phy_change->device_info = device_info; 1194 1195 /* 1196 * When using Enc/Slot mapping, if this device is an enclosure 1197 * make sure that all of its slots can fit into the mapping 1198 * table. 1199 */ 1200 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1201 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1202 /* 1203 * The enclosure should already be in the enclosure 1204 * table due to the Enclosure Add event. If not, just 1205 * continue, nothing can be done. 1206 */ 1207 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1208 topo_change->enc_handle); 1209 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1210 phy_change->is_processed = 1; 1211 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1212 "failed to add the device with handle " 1213 "0x%04x because enclosure handle 0x%04x " 1214 "is not in the mapping table\n", __func__, 1215 phy_change->dev_handle, 1216 topo_change->enc_handle); 1217 continue; 1218 } 1219 if (!((phy_change->device_info & 1220 MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1221 (phy_change->device_info & 1222 (MPI2_SAS_DEVICE_INFO_SSP_TARGET | 1223 MPI2_SAS_DEVICE_INFO_STP_TARGET | 1224 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) { 1225 phy_change->is_processed = 1; 1226 continue; 1227 } 1228 et_entry = &sc->enclosure_table[enc_idx]; 1229 1230 /* 1231 * If the enclosure already has a start_index, it's been 1232 * mapped, so go to the next Topo change. 1233 */ 1234 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1235 continue; 1236 1237 /* 1238 * If the Expander Handle is 0, the devices are direct 1239 * attached. In that case, the start_index must be just 1240 * after the reserved entries. Otherwise, find space in 1241 * the mapping table for the enclosure's devices. 1242 */ 1243 if (!topo_change->exp_handle) { 1244 map_idx = sc->num_rsvd_entries; 1245 et_entry->start_index = map_idx; 1246 } else { 1247 map_idx = _mapping_find_enc_map_space(sc, 1248 et_entry); 1249 et_entry->start_index = map_idx; 1250 1251 /* 1252 * If space cannot be found to hold all of the 1253 * enclosure's devices in the mapping table, 1254 * there's no need to continue checking the 1255 * other devices in this event. Set all of the 1256 * phy_details for this event (if the change is 1257 * for an add) as already processed because none 1258 * of these devices can be added to the mapping 1259 * table. 1260 */ 1261 if (et_entry->start_index == 1262 MPR_MAPTABLE_BAD_IDX) { 1263 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1264 "%s: failed to add the enclosure " 1265 "with ID 0x%016jx because there is " 1266 "no free space available in the " 1267 "mapping table for all of the " 1268 "enclosure's devices.\n", __func__, 1269 (uintmax_t)et_entry->enclosure_id); 1270 phy_change->is_processed = 1; 1271 for (phy_idx = 0; phy_idx < 1272 topo_change->num_entries; 1273 phy_idx++) { 1274 tmp_phy_change = 1275 &topo_change->phy_details 1276 [phy_idx]; 1277 if (tmp_phy_change->reason == 1278 add_code) 1279 tmp_phy_change-> 1280 is_processed = 1; 1281 } 1282 break; 1283 } 1284 } 1285 1286 /* 1287 * Found space in the mapping table for this enclosure. 1288 * Initialize each mapping table entry for the 1289 * enclosure. 1290 */ 1291 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1292 "entries for the enclosure, starting at map index " 1293 " %d.\n", __func__, et_entry->num_slots, map_idx); 1294 mt_entry = &sc->mapping_table[map_idx]; 1295 for (index = map_idx; index < (et_entry->num_slots 1296 + map_idx); index++, mt_entry++) { 1297 mt_entry->device_info = MPR_DEV_RESERVED; 1298 mt_entry->physical_id = et_entry->enclosure_id; 1299 mt_entry->phy_bits = et_entry->phy_bits; 1300 mt_entry->missing_count = 0; 1301 } 1302 } 1303 } 1304 } 1305 1306 /** 1307 * _mapping_get_pcie_dev_info -get information about newly added PCIe devices 1308 * @sc: per adapter object 1309 * @topo_change: Topology change event entry 1310 * 1311 * Searches through the PCIe topology change event list and issues PCIe device 1312 * pg0 requests for the newly added PCIe device. If the device is in an 1313 * enclosure, search for available space in the enclosure mapping table for the 1314 * device and reserve that space. 1315 * 1316 * Returns nothing 1317 */ 1318 static void 1319 _mapping_get_pcie_dev_info(struct mpr_softc *sc, 1320 struct _map_pcie_topology_change *topo_change) 1321 { 1322 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1323 Mpi2ConfigReply_t mpi_reply; 1324 Mpi26PCIeDevicePage0_t pcie_device_pg0; 1325 u8 entry, enc_idx, port_idx; 1326 u32 map_idx, index; 1327 struct _map_port_change *port_change, *tmp_port_change; 1328 uint64_t pcie_wwid; 1329 struct enc_mapping_table *et_entry; 1330 struct dev_mapping_table *mt_entry; 1331 u8 add_code = MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED; 1332 1333 for (entry = 0; entry < topo_change->num_entries; entry++) { 1334 port_change = &topo_change->port_details[entry]; 1335 if (port_change->is_processed || !port_change->dev_handle || 1336 port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED) 1337 continue; 1338 if (mpr_config_get_pcie_device_pg0(sc, &mpi_reply, 1339 &pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, 1340 port_change->dev_handle)) { 1341 port_change->is_processed = 1; 1342 continue; 1343 } 1344 1345 pcie_wwid = pcie_device_pg0.WWID.High; 1346 pcie_wwid = (pcie_wwid << 32) | pcie_device_pg0.WWID.Low; 1347 port_change->physical_id = pcie_wwid; 1348 port_change->slot = le16toh(pcie_device_pg0.Slot); 1349 port_change->device_info = le32toh(pcie_device_pg0.DeviceInfo); 1350 1351 /* 1352 * When using Enc/Slot mapping, if this device is an enclosure 1353 * make sure that all of its slots can fit into the mapping 1354 * table. 1355 */ 1356 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1357 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1358 /* 1359 * The enclosure should already be in the enclosure 1360 * table due to the Enclosure Add event. If not, just 1361 * continue, nothing can be done. 1362 */ 1363 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1364 topo_change->enc_handle); 1365 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1366 port_change->is_processed = 1; 1367 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1368 "failed to add the device with handle " 1369 "0x%04x because enclosure handle 0x%04x " 1370 "is not in the mapping table\n", __func__, 1371 port_change->dev_handle, 1372 topo_change->enc_handle); 1373 continue; 1374 } 1375 if (!(port_change->device_info & 1376 MPI26_PCIE_DEVINFO_NVME)) { 1377 port_change->is_processed = 1; 1378 continue; 1379 } 1380 et_entry = &sc->enclosure_table[enc_idx]; 1381 1382 /* 1383 * If the enclosure already has a start_index, it's been 1384 * mapped, so go to the next Topo change. 1385 */ 1386 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1387 continue; 1388 1389 /* 1390 * If the Switch Handle is 0, the devices are direct 1391 * attached. In that case, the start_index must be just 1392 * after the reserved entries. Otherwise, find space in 1393 * the mapping table for the enclosure's devices. 1394 */ 1395 if (!topo_change->switch_dev_handle) { 1396 map_idx = sc->num_rsvd_entries; 1397 et_entry->start_index = map_idx; 1398 } else { 1399 map_idx = _mapping_find_enc_map_space(sc, 1400 et_entry); 1401 et_entry->start_index = map_idx; 1402 1403 /* 1404 * If space cannot be found to hold all of the 1405 * enclosure's devices in the mapping table, 1406 * there's no need to continue checking the 1407 * other devices in this event. Set all of the 1408 * port_details for this event (if the change is 1409 * for an add) as already processed because none 1410 * of these devices can be added to the mapping 1411 * table. 1412 */ 1413 if (et_entry->start_index == 1414 MPR_MAPTABLE_BAD_IDX) { 1415 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1416 "%s: failed to add the enclosure " 1417 "with ID 0x%016jx because there is " 1418 "no free space available in the " 1419 "mapping table for all of the " 1420 "enclosure's devices.\n", __func__, 1421 (uintmax_t)et_entry->enclosure_id); 1422 port_change->is_processed = 1; 1423 for (port_idx = 0; port_idx < 1424 topo_change->num_entries; 1425 port_idx++) { 1426 tmp_port_change = 1427 &topo_change->port_details 1428 [port_idx]; 1429 if (tmp_port_change->reason == 1430 add_code) 1431 tmp_port_change-> 1432 is_processed = 1; 1433 } 1434 break; 1435 } 1436 } 1437 1438 /* 1439 * Found space in the mapping table for this enclosure. 1440 * Initialize each mapping table entry for the 1441 * enclosure. 1442 */ 1443 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1444 "entries for the enclosure, starting at map index " 1445 " %d.\n", __func__, et_entry->num_slots, map_idx); 1446 mt_entry = &sc->mapping_table[map_idx]; 1447 for (index = map_idx; index < (et_entry->num_slots 1448 + map_idx); index++, mt_entry++) { 1449 mt_entry->device_info = MPR_DEV_RESERVED; 1450 mt_entry->physical_id = et_entry->enclosure_id; 1451 mt_entry->phy_bits = et_entry->phy_bits; 1452 mt_entry->missing_count = 0; 1453 } 1454 } 1455 } 1456 } 1457 1458 /** 1459 * _mapping_set_mid_to_eid -set map table data from enclosure table 1460 * @sc: per adapter object 1461 * @et_entry: enclosure entry 1462 * 1463 * Returns nothing 1464 */ 1465 static inline void 1466 _mapping_set_mid_to_eid(struct mpr_softc *sc, 1467 struct enc_mapping_table *et_entry) 1468 { 1469 struct dev_mapping_table *mt_entry; 1470 u16 slots = et_entry->num_slots, map_idx; 1471 u32 start_idx = et_entry->start_index; 1472 1473 if (start_idx != MPR_MAPTABLE_BAD_IDX) { 1474 mt_entry = &sc->mapping_table[start_idx]; 1475 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++) 1476 mt_entry->physical_id = et_entry->enclosure_id; 1477 } 1478 } 1479 1480 /** 1481 * _mapping_clear_removed_entries - mark the entries to be cleared 1482 * @sc: per adapter object 1483 * 1484 * Search through the removal table and mark the entries which needs to be 1485 * flushed to DPM and also updates the map table and enclosure table by 1486 * clearing the corresponding entries. 1487 * 1488 * Returns nothing 1489 */ 1490 static void 1491 _mapping_clear_removed_entries(struct mpr_softc *sc) 1492 { 1493 u32 remove_idx; 1494 struct map_removal_table *remove_entry; 1495 Mpi2DriverMap0Entry_t *dpm_entry; 1496 u8 done_flag = 0, num_entries, m, i; 1497 struct enc_mapping_table *et_entry, *from, *to; 1498 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1499 1500 if (sc->is_dpm_enable) { 1501 remove_entry = sc->removal_table; 1502 for (remove_idx = 0; remove_idx < sc->max_devices; 1503 remove_idx++, remove_entry++) { 1504 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 1505 dpm_entry = (Mpi2DriverMap0Entry_t *) 1506 ((u8 *) sc->dpm_pg0 + 1507 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1508 dpm_entry += remove_entry->dpm_entry_num; 1509 dpm_entry->PhysicalIdentifier.Low = 0; 1510 dpm_entry->PhysicalIdentifier.High = 0; 1511 dpm_entry->DeviceIndex = 0; 1512 dpm_entry->MappingInformation = 0; 1513 dpm_entry->PhysicalBitsMapping = 0; 1514 sc->dpm_flush_entry[remove_entry-> 1515 dpm_entry_num] = 1; 1516 sc->dpm_entry_used[remove_entry->dpm_entry_num] 1517 = 0; 1518 remove_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 1519 } 1520 } 1521 } 1522 1523 /* 1524 * When using Enc/Slot mapping, if a new enclosure was added and old 1525 * enclosure space was needed, the enclosure table may now have gaps 1526 * that need to be closed. All enclosure mappings need to be contiguous 1527 * so that space can be reused correctly if available. 1528 */ 1529 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1530 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1531 num_entries = sc->num_enc_table_entries; 1532 while (!done_flag) { 1533 done_flag = 1; 1534 et_entry = sc->enclosure_table; 1535 for (i = 0; i < num_entries; i++, et_entry++) { 1536 if (!et_entry->enc_handle && et_entry-> 1537 init_complete) { 1538 done_flag = 0; 1539 if (i != (num_entries - 1)) { 1540 from = &sc->enclosure_table 1541 [i+1]; 1542 to = &sc->enclosure_table[i]; 1543 for (m = i; m < (num_entries - 1544 1); m++, from++, to++) { 1545 _mapping_set_mid_to_eid 1546 (sc, to); 1547 *to = *from; 1548 } 1549 _mapping_clear_enc_entry(to); 1550 sc->num_enc_table_entries--; 1551 num_entries = 1552 sc->num_enc_table_entries; 1553 } else { 1554 _mapping_clear_enc_entry 1555 (et_entry); 1556 sc->num_enc_table_entries--; 1557 num_entries = 1558 sc->num_enc_table_entries; 1559 } 1560 } 1561 } 1562 } 1563 } 1564 } 1565 1566 /** 1567 * _mapping_add_new_device -Add the new device into mapping table 1568 * @sc: per adapter object 1569 * @topo_change: Topology change event entry 1570 * 1571 * Search through the topology change event list and update map table, 1572 * enclosure table and DPM pages for the newly added devices. 1573 * 1574 * Returns nothing 1575 */ 1576 static void 1577 _mapping_add_new_device(struct mpr_softc *sc, 1578 struct _map_topology_change *topo_change) 1579 { 1580 u8 enc_idx, missing_cnt, is_removed = 0; 1581 u16 dpm_idx; 1582 u32 search_idx, map_idx; 1583 u32 entry; 1584 struct dev_mapping_table *mt_entry; 1585 struct enc_mapping_table *et_entry; 1586 struct _map_phy_change *phy_change; 1587 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1588 Mpi2DriverMap0Entry_t *dpm_entry; 1589 uint64_t temp64_var; 1590 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1591 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1592 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1593 1594 for (entry = 0; entry < topo_change->num_entries; entry++) { 1595 phy_change = &topo_change->phy_details[entry]; 1596 if (phy_change->is_processed) 1597 continue; 1598 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED || 1599 !phy_change->dev_handle) { 1600 phy_change->is_processed = 1; 1601 continue; 1602 } 1603 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1604 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1605 enc_idx = _mapping_get_enc_idx_from_handle 1606 (sc, topo_change->enc_handle); 1607 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1608 phy_change->is_processed = 1; 1609 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1610 "failed to add the device with handle " 1611 "0x%04x because enclosure handle 0x%04x " 1612 "is not in the mapping table\n", __func__, 1613 phy_change->dev_handle, 1614 topo_change->enc_handle); 1615 continue; 1616 } 1617 1618 /* 1619 * If the enclosure's start_index is BAD here, it means 1620 * that there is no room in the mapping table to cover 1621 * all of the devices that could be in the enclosure. 1622 * There's no reason to process any of the devices for 1623 * this enclosure since they can't be mapped. 1624 */ 1625 et_entry = &sc->enclosure_table[enc_idx]; 1626 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1627 phy_change->is_processed = 1; 1628 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1629 "failed to add the device with handle " 1630 "0x%04x because there is no free space " 1631 "available in the mapping table\n", 1632 __func__, phy_change->dev_handle); 1633 continue; 1634 } 1635 1636 /* 1637 * Add this device to the mapping table at the correct 1638 * offset where space was found to map the enclosure. 1639 * Then setup the DPM entry information if being used. 1640 */ 1641 map_idx = et_entry->start_index + phy_change->slot - 1642 et_entry->start_slot; 1643 mt_entry = &sc->mapping_table[map_idx]; 1644 mt_entry->physical_id = phy_change->physical_id; 1645 mt_entry->id = map_idx; 1646 mt_entry->dev_handle = phy_change->dev_handle; 1647 mt_entry->missing_count = 0; 1648 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1649 mt_entry->device_info = phy_change->device_info | 1650 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1651 if (sc->is_dpm_enable) { 1652 dpm_idx = et_entry->dpm_entry_num; 1653 if (dpm_idx == MPR_DPM_BAD_IDX) 1654 dpm_idx = _mapping_get_dpm_idx_from_id 1655 (sc, et_entry->enclosure_id, 1656 et_entry->phy_bits); 1657 if (dpm_idx == MPR_DPM_BAD_IDX) { 1658 dpm_idx = _mapping_get_free_dpm_idx(sc); 1659 if (dpm_idx != MPR_DPM_BAD_IDX) { 1660 dpm_entry = 1661 (Mpi2DriverMap0Entry_t *) 1662 ((u8 *) sc->dpm_pg0 + 1663 hdr_sz); 1664 dpm_entry += dpm_idx; 1665 dpm_entry-> 1666 PhysicalIdentifier.Low = 1667 (0xFFFFFFFF & 1668 et_entry->enclosure_id); 1669 dpm_entry-> 1670 PhysicalIdentifier.High = 1671 (et_entry->enclosure_id 1672 >> 32); 1673 dpm_entry->DeviceIndex = 1674 (U16)et_entry->start_index; 1675 dpm_entry->MappingInformation = 1676 et_entry->num_slots; 1677 dpm_entry->MappingInformation 1678 <<= map_shift; 1679 dpm_entry->PhysicalBitsMapping 1680 = et_entry->phy_bits; 1681 et_entry->dpm_entry_num = 1682 dpm_idx; 1683 sc->dpm_entry_used[dpm_idx] = 1; 1684 sc->dpm_flush_entry[dpm_idx] = 1685 1; 1686 phy_change->is_processed = 1; 1687 } else { 1688 phy_change->is_processed = 1; 1689 mpr_dprint(sc, MPR_ERROR | 1690 MPR_MAPPING, "%s: failed " 1691 "to add the device with " 1692 "handle 0x%04x to " 1693 "persistent table because " 1694 "there is no free space " 1695 "available\n", __func__, 1696 phy_change->dev_handle); 1697 } 1698 } else { 1699 et_entry->dpm_entry_num = dpm_idx; 1700 mt_entry->dpm_entry_num = dpm_idx; 1701 } 1702 } 1703 et_entry->init_complete = 1; 1704 } else if ((ioc_pg8_flags & 1705 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1706 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1707 /* 1708 * Get the mapping table index for this device. If it's 1709 * not in the mapping table yet, find a free entry if 1710 * one is available. If there are no free entries, look 1711 * for the entry that has the highest missing count. If 1712 * none of that works to find an entry in the mapping 1713 * table, there is a problem. Log a message and just 1714 * continue on. 1715 */ 1716 map_idx = _mapping_get_mt_idx_from_id 1717 (sc, phy_change->physical_id); 1718 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1719 search_idx = sc->num_rsvd_entries; 1720 if (topo_change->exp_handle) 1721 search_idx += max_num_phy_ids; 1722 map_idx = _mapping_get_free_mt_idx(sc, 1723 search_idx); 1724 } 1725 1726 /* 1727 * If an entry will be used that has a missing device, 1728 * clear its entry from the DPM in the controller. 1729 */ 1730 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1731 map_idx = _mapping_get_high_missing_mt_idx(sc); 1732 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1733 mt_entry = &sc->mapping_table[map_idx]; 1734 _mapping_add_to_removal_table(sc, 1735 mt_entry->dpm_entry_num); 1736 is_removed = 1; 1737 mt_entry->init_complete = 0; 1738 } 1739 } 1740 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1741 mt_entry = &sc->mapping_table[map_idx]; 1742 mt_entry->physical_id = phy_change->physical_id; 1743 mt_entry->id = map_idx; 1744 mt_entry->dev_handle = phy_change->dev_handle; 1745 mt_entry->missing_count = 0; 1746 mt_entry->device_info = phy_change->device_info 1747 | (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1748 } else { 1749 phy_change->is_processed = 1; 1750 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1751 "failed to add the device with handle " 1752 "0x%04x because there is no free space " 1753 "available in the mapping table\n", 1754 __func__, phy_change->dev_handle); 1755 continue; 1756 } 1757 if (sc->is_dpm_enable) { 1758 if (mt_entry->dpm_entry_num != 1759 MPR_DPM_BAD_IDX) { 1760 dpm_idx = mt_entry->dpm_entry_num; 1761 dpm_entry = (Mpi2DriverMap0Entry_t *) 1762 ((u8 *)sc->dpm_pg0 + hdr_sz); 1763 dpm_entry += dpm_idx; 1764 missing_cnt = dpm_entry-> 1765 MappingInformation & 1766 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1767 temp64_var = dpm_entry-> 1768 PhysicalIdentifier.High; 1769 temp64_var = (temp64_var << 32) | 1770 dpm_entry->PhysicalIdentifier.Low; 1771 1772 /* 1773 * If the Mapping Table's info is not 1774 * the same as the DPM entry, clear the 1775 * init_complete flag so that it's 1776 * updated. 1777 */ 1778 if ((mt_entry->physical_id == 1779 temp64_var) && !missing_cnt) 1780 mt_entry->init_complete = 1; 1781 else 1782 mt_entry->init_complete = 0; 1783 } else { 1784 dpm_idx = _mapping_get_free_dpm_idx(sc); 1785 mt_entry->init_complete = 0; 1786 } 1787 if (dpm_idx != MPR_DPM_BAD_IDX && 1788 !mt_entry->init_complete) { 1789 mt_entry->dpm_entry_num = dpm_idx; 1790 dpm_entry = (Mpi2DriverMap0Entry_t *) 1791 ((u8 *)sc->dpm_pg0 + hdr_sz); 1792 dpm_entry += dpm_idx; 1793 dpm_entry->PhysicalIdentifier.Low = 1794 (0xFFFFFFFF & 1795 mt_entry->physical_id); 1796 dpm_entry->PhysicalIdentifier.High = 1797 (mt_entry->physical_id >> 32); 1798 dpm_entry->DeviceIndex = (U16) map_idx; 1799 dpm_entry->MappingInformation = 0; 1800 dpm_entry->PhysicalBitsMapping = 0; 1801 sc->dpm_entry_used[dpm_idx] = 1; 1802 sc->dpm_flush_entry[dpm_idx] = 1; 1803 phy_change->is_processed = 1; 1804 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 1805 phy_change->is_processed = 1; 1806 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1807 "%s: failed to add the device with " 1808 "handle 0x%04x to persistent table " 1809 "because there is no free space " 1810 "available\n", __func__, 1811 phy_change->dev_handle); 1812 } 1813 } 1814 mt_entry->init_complete = 1; 1815 } 1816 1817 phy_change->is_processed = 1; 1818 } 1819 if (is_removed) 1820 _mapping_clear_removed_entries(sc); 1821 } 1822 1823 /** 1824 * _mapping_add_new_pcie_device -Add the new PCIe device into mapping table 1825 * @sc: per adapter object 1826 * @topo_change: Topology change event entry 1827 * 1828 * Search through the PCIe topology change event list and update map table, 1829 * enclosure table and DPM pages for the newly added devices. 1830 * 1831 * Returns nothing 1832 */ 1833 static void 1834 _mapping_add_new_pcie_device(struct mpr_softc *sc, 1835 struct _map_pcie_topology_change *topo_change) 1836 { 1837 u8 enc_idx, missing_cnt, is_removed = 0; 1838 u16 dpm_idx; 1839 u32 search_idx, map_idx; 1840 u32 entry; 1841 struct dev_mapping_table *mt_entry; 1842 struct enc_mapping_table *et_entry; 1843 struct _map_port_change *port_change; 1844 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1845 Mpi2DriverMap0Entry_t *dpm_entry; 1846 uint64_t temp64_var; 1847 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1848 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1849 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1850 1851 for (entry = 0; entry < topo_change->num_entries; entry++) { 1852 port_change = &topo_change->port_details[entry]; 1853 if (port_change->is_processed) 1854 continue; 1855 if (port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED || 1856 !port_change->dev_handle) { 1857 port_change->is_processed = 1; 1858 continue; 1859 } 1860 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1861 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1862 enc_idx = _mapping_get_enc_idx_from_handle 1863 (sc, topo_change->enc_handle); 1864 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1865 port_change->is_processed = 1; 1866 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1867 "failed to add the device with handle " 1868 "0x%04x because enclosure handle 0x%04x " 1869 "is not in the mapping table\n", __func__, 1870 port_change->dev_handle, 1871 topo_change->enc_handle); 1872 continue; 1873 } 1874 1875 /* 1876 * If the enclosure's start_index is BAD here, it means 1877 * that there is no room in the mapping table to cover 1878 * all of the devices that could be in the enclosure. 1879 * There's no reason to process any of the devices for 1880 * this enclosure since they can't be mapped. 1881 */ 1882 et_entry = &sc->enclosure_table[enc_idx]; 1883 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1884 port_change->is_processed = 1; 1885 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1886 "failed to add the device with handle " 1887 "0x%04x because there is no free space " 1888 "available in the mapping table\n", 1889 __func__, port_change->dev_handle); 1890 continue; 1891 } 1892 1893 /* 1894 * Add this device to the mapping table at the correct 1895 * offset where space was found to map the enclosure. 1896 * Then setup the DPM entry information if being used. 1897 */ 1898 map_idx = et_entry->start_index + port_change->slot - 1899 et_entry->start_slot; 1900 mt_entry = &sc->mapping_table[map_idx]; 1901 mt_entry->physical_id = port_change->physical_id; 1902 mt_entry->id = map_idx; 1903 mt_entry->dev_handle = port_change->dev_handle; 1904 mt_entry->missing_count = 0; 1905 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1906 mt_entry->device_info = port_change->device_info | 1907 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1908 if (sc->is_dpm_enable) { 1909 dpm_idx = et_entry->dpm_entry_num; 1910 if (dpm_idx == MPR_DPM_BAD_IDX) 1911 dpm_idx = _mapping_get_dpm_idx_from_id 1912 (sc, et_entry->enclosure_id, 1913 et_entry->phy_bits); 1914 if (dpm_idx == MPR_DPM_BAD_IDX) { 1915 dpm_idx = _mapping_get_free_dpm_idx(sc); 1916 if (dpm_idx != MPR_DPM_BAD_IDX) { 1917 dpm_entry = 1918 (Mpi2DriverMap0Entry_t *) 1919 ((u8 *) sc->dpm_pg0 + 1920 hdr_sz); 1921 dpm_entry += dpm_idx; 1922 dpm_entry-> 1923 PhysicalIdentifier.Low = 1924 (0xFFFFFFFF & 1925 et_entry->enclosure_id); 1926 dpm_entry-> 1927 PhysicalIdentifier.High = 1928 (et_entry->enclosure_id 1929 >> 32); 1930 dpm_entry->DeviceIndex = 1931 (U16)et_entry->start_index; 1932 dpm_entry->MappingInformation = 1933 et_entry->num_slots; 1934 dpm_entry->MappingInformation 1935 <<= map_shift; 1936 dpm_entry->PhysicalBitsMapping 1937 = et_entry->phy_bits; 1938 et_entry->dpm_entry_num = 1939 dpm_idx; 1940 sc->dpm_entry_used[dpm_idx] = 1; 1941 sc->dpm_flush_entry[dpm_idx] = 1942 1; 1943 port_change->is_processed = 1; 1944 } else { 1945 port_change->is_processed = 1; 1946 mpr_dprint(sc, MPR_ERROR | 1947 MPR_MAPPING, "%s: failed " 1948 "to add the device with " 1949 "handle 0x%04x to " 1950 "persistent table because " 1951 "there is no free space " 1952 "available\n", __func__, 1953 port_change->dev_handle); 1954 } 1955 } else { 1956 et_entry->dpm_entry_num = dpm_idx; 1957 mt_entry->dpm_entry_num = dpm_idx; 1958 } 1959 } 1960 et_entry->init_complete = 1; 1961 } else if ((ioc_pg8_flags & 1962 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1963 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1964 /* 1965 * Get the mapping table index for this device. If it's 1966 * not in the mapping table yet, find a free entry if 1967 * one is available. If there are no free entries, look 1968 * for the entry that has the highest missing count. If 1969 * none of that works to find an entry in the mapping 1970 * table, there is a problem. Log a message and just 1971 * continue on. 1972 */ 1973 map_idx = _mapping_get_mt_idx_from_id 1974 (sc, port_change->physical_id); 1975 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1976 search_idx = sc->num_rsvd_entries; 1977 if (topo_change->switch_dev_handle) 1978 search_idx += max_num_phy_ids; 1979 map_idx = _mapping_get_free_mt_idx(sc, 1980 search_idx); 1981 } 1982 1983 /* 1984 * If an entry will be used that has a missing device, 1985 * clear its entry from the DPM in the controller. 1986 */ 1987 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1988 map_idx = _mapping_get_high_missing_mt_idx(sc); 1989 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1990 mt_entry = &sc->mapping_table[map_idx]; 1991 _mapping_add_to_removal_table(sc, 1992 mt_entry->dpm_entry_num); 1993 is_removed = 1; 1994 mt_entry->init_complete = 0; 1995 } 1996 } 1997 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1998 mt_entry = &sc->mapping_table[map_idx]; 1999 mt_entry->physical_id = 2000 port_change->physical_id; 2001 mt_entry->id = map_idx; 2002 mt_entry->dev_handle = port_change->dev_handle; 2003 mt_entry->missing_count = 0; 2004 mt_entry->device_info = 2005 port_change->device_info | 2006 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 2007 } else { 2008 port_change->is_processed = 1; 2009 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2010 "failed to add the device with handle " 2011 "0x%04x because there is no free space " 2012 "available in the mapping table\n", 2013 __func__, port_change->dev_handle); 2014 continue; 2015 } 2016 if (sc->is_dpm_enable) { 2017 if (mt_entry->dpm_entry_num != 2018 MPR_DPM_BAD_IDX) { 2019 dpm_idx = mt_entry->dpm_entry_num; 2020 dpm_entry = (Mpi2DriverMap0Entry_t *) 2021 ((u8 *)sc->dpm_pg0 + hdr_sz); 2022 dpm_entry += dpm_idx; 2023 missing_cnt = dpm_entry-> 2024 MappingInformation & 2025 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2026 temp64_var = dpm_entry-> 2027 PhysicalIdentifier.High; 2028 temp64_var = (temp64_var << 32) | 2029 dpm_entry->PhysicalIdentifier.Low; 2030 2031 /* 2032 * If the Mapping Table's info is not 2033 * the same as the DPM entry, clear the 2034 * init_complete flag so that it's 2035 * updated. 2036 */ 2037 if ((mt_entry->physical_id == 2038 temp64_var) && !missing_cnt) 2039 mt_entry->init_complete = 1; 2040 else 2041 mt_entry->init_complete = 0; 2042 } else { 2043 dpm_idx = _mapping_get_free_dpm_idx(sc); 2044 mt_entry->init_complete = 0; 2045 } 2046 if (dpm_idx != MPR_DPM_BAD_IDX && 2047 !mt_entry->init_complete) { 2048 mt_entry->dpm_entry_num = dpm_idx; 2049 dpm_entry = (Mpi2DriverMap0Entry_t *) 2050 ((u8 *)sc->dpm_pg0 + hdr_sz); 2051 dpm_entry += dpm_idx; 2052 dpm_entry->PhysicalIdentifier.Low = 2053 (0xFFFFFFFF & 2054 mt_entry->physical_id); 2055 dpm_entry->PhysicalIdentifier.High = 2056 (mt_entry->physical_id >> 32); 2057 dpm_entry->DeviceIndex = (U16) map_idx; 2058 dpm_entry->MappingInformation = 0; 2059 dpm_entry->PhysicalBitsMapping = 0; 2060 sc->dpm_entry_used[dpm_idx] = 1; 2061 sc->dpm_flush_entry[dpm_idx] = 1; 2062 port_change->is_processed = 1; 2063 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 2064 port_change->is_processed = 1; 2065 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2066 "%s: failed to add the device with " 2067 "handle 0x%04x to persistent table " 2068 "because there is no free space " 2069 "available\n", __func__, 2070 port_change->dev_handle); 2071 } 2072 } 2073 mt_entry->init_complete = 1; 2074 } 2075 2076 port_change->is_processed = 1; 2077 } 2078 if (is_removed) 2079 _mapping_clear_removed_entries(sc); 2080 } 2081 2082 /** 2083 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM 2084 * @sc: per adapter object 2085 * 2086 * Returns nothing 2087 */ 2088 static void 2089 _mapping_flush_dpm_pages(struct mpr_softc *sc) 2090 { 2091 Mpi2DriverMap0Entry_t *dpm_entry; 2092 Mpi2ConfigReply_t mpi_reply; 2093 Mpi2DriverMappingPage0_t config_page; 2094 u16 entry_num; 2095 2096 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2097 if (!sc->dpm_flush_entry[entry_num]) 2098 continue; 2099 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 2100 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 2101 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2102 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 2103 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2104 dpm_entry += entry_num; 2105 dpm_entry->MappingInformation = htole16(dpm_entry-> 2106 MappingInformation); 2107 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex); 2108 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry-> 2109 PhysicalBitsMapping); 2110 memcpy(&config_page.Entry, (u8 *)dpm_entry, 2111 sizeof(Mpi2DriverMap0Entry_t)); 2112 /* TODO-How to handle failed writes? */ 2113 mpr_dprint(sc, MPR_MAPPING, "%s: Flushing DPM entry %d.\n", 2114 __func__, entry_num); 2115 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 2116 entry_num)) { 2117 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Flush of " 2118 "DPM entry %d for device failed\n", __func__, 2119 entry_num); 2120 } else 2121 sc->dpm_flush_entry[entry_num] = 0; 2122 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2123 MappingInformation); 2124 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 2125 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry-> 2126 PhysicalBitsMapping); 2127 } 2128 } 2129 2130 /** 2131 * _mapping_allocate_memory- allocates the memory required for mapping tables 2132 * @sc: per adapter object 2133 * 2134 * Allocates the memory for all the tables required for host mapping 2135 * 2136 * Return 0 on success or non-zero on failure. 2137 */ 2138 int 2139 mpr_mapping_allocate_memory(struct mpr_softc *sc) 2140 { 2141 uint32_t dpm_pg0_sz; 2142 2143 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) * 2144 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2145 if (!sc->mapping_table) 2146 goto free_resources; 2147 2148 sc->removal_table = malloc((sizeof(struct map_removal_table) * 2149 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2150 if (!sc->removal_table) 2151 goto free_resources; 2152 2153 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) * 2154 sc->max_enclosures), M_MPR, M_ZERO|M_NOWAIT); 2155 if (!sc->enclosure_table) 2156 goto free_resources; 2157 2158 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries), 2159 M_MPR, M_ZERO|M_NOWAIT); 2160 if (!sc->dpm_entry_used) 2161 goto free_resources; 2162 2163 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries), 2164 M_MPR, M_ZERO|M_NOWAIT); 2165 if (!sc->dpm_flush_entry) 2166 goto free_resources; 2167 2168 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2169 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2170 2171 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPR, M_ZERO|M_NOWAIT); 2172 if (!sc->dpm_pg0) { 2173 printf("%s: memory alloc failed for dpm page; disabling dpm\n", 2174 __func__); 2175 sc->is_dpm_enable = 0; 2176 } 2177 2178 return 0; 2179 2180 free_resources: 2181 free(sc->mapping_table, M_MPR); 2182 free(sc->removal_table, M_MPR); 2183 free(sc->enclosure_table, M_MPR); 2184 free(sc->dpm_entry_used, M_MPR); 2185 free(sc->dpm_flush_entry, M_MPR); 2186 free(sc->dpm_pg0, M_MPR); 2187 printf("%s: device initialization failed due to failure in mapping " 2188 "table memory allocation\n", __func__); 2189 return -1; 2190 } 2191 2192 /** 2193 * mpr_mapping_free_memory- frees the memory allocated for mapping tables 2194 * @sc: per adapter object 2195 * 2196 * Returns nothing. 2197 */ 2198 void 2199 mpr_mapping_free_memory(struct mpr_softc *sc) 2200 { 2201 free(sc->mapping_table, M_MPR); 2202 free(sc->removal_table, M_MPR); 2203 free(sc->enclosure_table, M_MPR); 2204 free(sc->dpm_entry_used, M_MPR); 2205 free(sc->dpm_flush_entry, M_MPR); 2206 free(sc->dpm_pg0, M_MPR); 2207 } 2208 2209 static void 2210 _mapping_process_dpm_pg0(struct mpr_softc *sc) 2211 { 2212 u8 missing_cnt, enc_idx; 2213 u16 slot_id, entry_num, num_slots; 2214 u32 map_idx, dev_idx, start_idx, end_idx; 2215 struct dev_mapping_table *mt_entry; 2216 Mpi2DriverMap0Entry_t *dpm_entry; 2217 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2218 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 2219 struct enc_mapping_table *et_entry; 2220 u64 physical_id; 2221 u32 phy_bits = 0; 2222 2223 /* 2224 * start_idx and end_idx are only used for IR. 2225 */ 2226 if (sc->ir_firmware) 2227 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2228 2229 /* 2230 * Look through all of the DPM entries that were read from the 2231 * controller and copy them over to the driver's internal table if they 2232 * have a non-zero ID. At this point, any ID with a value of 0 would be 2233 * invalid, so don't copy it. 2234 */ 2235 mpr_dprint(sc, MPR_MAPPING, "%s: Start copy of %d DPM entries into the " 2236 "mapping table.\n", __func__, sc->max_dpm_entries); 2237 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2238 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2239 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 2240 dpm_entry++) { 2241 physical_id = dpm_entry->PhysicalIdentifier.High; 2242 physical_id = (physical_id << 32) | 2243 dpm_entry->PhysicalIdentifier.Low; 2244 if (!physical_id) { 2245 sc->dpm_entry_used[entry_num] = 0; 2246 continue; 2247 } 2248 sc->dpm_entry_used[entry_num] = 1; 2249 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2250 MappingInformation); 2251 missing_cnt = dpm_entry->MappingInformation & 2252 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2253 dev_idx = le16toh(dpm_entry->DeviceIndex); 2254 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping); 2255 2256 /* 2257 * Volumes are at special locations in the mapping table so 2258 * account for that. Volume mapping table entries do not depend 2259 * on the type of mapping, so continue the loop after adding 2260 * volumes to the mapping table. 2261 */ 2262 if (sc->ir_firmware && (dev_idx >= start_idx) && 2263 (dev_idx <= end_idx)) { 2264 mt_entry = &sc->mapping_table[dev_idx]; 2265 mt_entry->physical_id = 2266 dpm_entry->PhysicalIdentifier.High; 2267 mt_entry->physical_id = (mt_entry->physical_id << 32) | 2268 dpm_entry->PhysicalIdentifier.Low; 2269 mt_entry->id = dev_idx; 2270 mt_entry->missing_count = missing_cnt; 2271 mt_entry->dpm_entry_num = entry_num; 2272 mt_entry->device_info = MPR_DEV_RESERVED; 2273 continue; 2274 } 2275 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2276 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2277 /* 2278 * The dev_idx for an enclosure is the start index. If 2279 * the start index is within the controller's default 2280 * enclosure area, set the number of slots for this 2281 * enclosure to the max allowed. Otherwise, it should be 2282 * a normal enclosure and the number of slots is in the 2283 * DPM entry's Mapping Information. 2284 */ 2285 if (dev_idx < (sc->num_rsvd_entries + 2286 max_num_phy_ids)) { 2287 slot_id = 0; 2288 if (ioc_pg8_flags & 2289 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1) 2290 slot_id = 1; 2291 num_slots = max_num_phy_ids; 2292 } else { 2293 slot_id = 0; 2294 num_slots = dpm_entry->MappingInformation & 2295 MPI2_DRVMAP0_MAPINFO_SLOT_MASK; 2296 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2297 } 2298 enc_idx = sc->num_enc_table_entries; 2299 if (enc_idx >= sc->max_enclosures) { 2300 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2301 "Number of enclosure entries in DPM exceed " 2302 "the max allowed of %d.\n", __func__, 2303 sc->max_enclosures); 2304 break; 2305 } 2306 sc->num_enc_table_entries++; 2307 et_entry = &sc->enclosure_table[enc_idx]; 2308 physical_id = dpm_entry->PhysicalIdentifier.High; 2309 et_entry->enclosure_id = (physical_id << 32) | 2310 dpm_entry->PhysicalIdentifier.Low; 2311 et_entry->start_index = dev_idx; 2312 et_entry->dpm_entry_num = entry_num; 2313 et_entry->num_slots = num_slots; 2314 et_entry->start_slot = slot_id; 2315 et_entry->missing_count = missing_cnt; 2316 et_entry->phy_bits = phy_bits; 2317 2318 /* 2319 * Initialize all entries for this enclosure in the 2320 * mapping table and mark them as reserved. The actual 2321 * devices have not been processed yet but when they are 2322 * they will use these entries. If an entry is found 2323 * that already has a valid DPM index, the mapping table 2324 * is corrupt. This can happen if the mapping type is 2325 * changed without clearing all of the DPM entries in 2326 * the controller. 2327 */ 2328 mt_entry = &sc->mapping_table[dev_idx]; 2329 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots); 2330 map_idx++, mt_entry++) { 2331 if (mt_entry->dpm_entry_num != 2332 MPR_DPM_BAD_IDX) { 2333 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2334 "%s: Conflict in mapping table for " 2335 "enclosure %d device %d\n", 2336 __func__, enc_idx, map_idx); 2337 goto fail; 2338 } 2339 physical_id = 2340 dpm_entry->PhysicalIdentifier.High; 2341 mt_entry->physical_id = (physical_id << 32) | 2342 dpm_entry->PhysicalIdentifier.Low; 2343 mt_entry->phy_bits = phy_bits; 2344 mt_entry->id = dev_idx; 2345 mt_entry->dpm_entry_num = entry_num; 2346 mt_entry->missing_count = missing_cnt; 2347 mt_entry->device_info = MPR_DEV_RESERVED; 2348 } 2349 } else if ((ioc_pg8_flags & 2350 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2351 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2352 /* 2353 * Device mapping, so simply copy the DPM entries to the 2354 * mapping table, but check for a corrupt mapping table 2355 * (as described above in Enc/Slot mapping). 2356 */ 2357 map_idx = dev_idx; 2358 mt_entry = &sc->mapping_table[map_idx]; 2359 if (mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2360 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2361 "Conflict in mapping table for device %d\n", 2362 __func__, map_idx); 2363 goto fail; 2364 } 2365 physical_id = dpm_entry->PhysicalIdentifier.High; 2366 mt_entry->physical_id = (physical_id << 32) | 2367 dpm_entry->PhysicalIdentifier.Low; 2368 mt_entry->phy_bits = phy_bits; 2369 mt_entry->id = dev_idx; 2370 mt_entry->missing_count = missing_cnt; 2371 mt_entry->dpm_entry_num = entry_num; 2372 mt_entry->device_info = MPR_DEV_RESERVED; 2373 } 2374 } /*close the loop for DPM table */ 2375 return; 2376 2377 fail: 2378 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2379 "Wiping DPM to start from scratch\n", __func__); 2380 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2381 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2382 bzero(dpm_entry, sizeof(Mpi2DriverMap0Entry_t) * sc->max_dpm_entries); 2383 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2384 sc->dpm_flush_entry[entry_num] = 1; 2385 sc->dpm_entry_used[entry_num] = 0; 2386 /* 2387 * for IR firmware, it may be necessary to wipe out 2388 * sc->mapping_table volumes tooi 2389 */ 2390 } 2391 _mapping_flush_dpm_pages(sc); 2392 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) 2393 _mapping_clear_enc_entry(sc->enclosure_table + enc_idx); 2394 sc->num_enc_table_entries = 0; 2395 } 2396 2397 /* 2398 * mpr_mapping_check_devices - start of the day check for device availabilty 2399 * @sc: per adapter object 2400 * 2401 * Returns nothing. 2402 */ 2403 void 2404 mpr_mapping_check_devices(void *data) 2405 { 2406 u32 i; 2407 struct dev_mapping_table *mt_entry; 2408 struct mpr_softc *sc = (struct mpr_softc *)data; 2409 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2410 struct enc_mapping_table *et_entry; 2411 u32 start_idx = 0, end_idx = 0; 2412 u8 stop_device_checks = 0; 2413 2414 MPR_FUNCTRACE(sc); 2415 2416 /* 2417 * Clear this flag so that this function is never called again except 2418 * within this function if the check needs to be done again. The 2419 * purpose is to check for missing devices that are currently in the 2420 * mapping table so do this only at driver init after discovery. 2421 */ 2422 sc->track_mapping_events = 0; 2423 2424 /* 2425 * callout synchronization 2426 * This is used to prevent race conditions for the callout. 2427 */ 2428 mpr_dprint(sc, MPR_MAPPING, "%s: Start check for missing devices.\n", 2429 __func__); 2430 mtx_assert(&sc->mpr_mtx, MA_OWNED); 2431 if ((callout_pending(&sc->device_check_callout)) || 2432 (!callout_active(&sc->device_check_callout))) { 2433 mpr_dprint(sc, MPR_MAPPING, "%s: Device Check Callout is " 2434 "already pending or not active.\n", __func__); 2435 return; 2436 } 2437 callout_deactivate(&sc->device_check_callout); 2438 2439 /* 2440 * Use callout to check if any devices in the mapping table have been 2441 * processed yet. If ALL devices are marked as not init_complete, no 2442 * devices have been processed and mapped. Until devices are mapped 2443 * there's no reason to mark them as missing. Continue resetting this 2444 * callout until devices have been mapped. 2445 */ 2446 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2447 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2448 et_entry = sc->enclosure_table; 2449 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2450 if (et_entry->init_complete) { 2451 stop_device_checks = 1; 2452 break; 2453 } 2454 } 2455 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2456 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2457 mt_entry = sc->mapping_table; 2458 for (i = 0; i < sc->max_devices; i++, mt_entry++) { 2459 if (mt_entry->init_complete) { 2460 stop_device_checks = 1; 2461 break; 2462 } 2463 } 2464 } 2465 2466 /* 2467 * Setup another callout check after a delay. Keep doing this until 2468 * devices are mapped. 2469 */ 2470 if (!stop_device_checks) { 2471 mpr_dprint(sc, MPR_MAPPING, "%s: No devices have been mapped. " 2472 "Reset callout to check again after a %d second delay.\n", 2473 __func__, MPR_MISSING_CHECK_DELAY); 2474 callout_reset(&sc->device_check_callout, 2475 MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices, 2476 sc); 2477 return; 2478 } 2479 mpr_dprint(sc, MPR_MAPPING, "%s: Device check complete.\n", __func__); 2480 2481 /* 2482 * Depending on the mapping type, check if devices have been processed 2483 * and update their missing counts if not processed. 2484 */ 2485 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2486 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2487 et_entry = sc->enclosure_table; 2488 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2489 if (!et_entry->init_complete) { 2490 if (et_entry->missing_count < 2491 MPR_MAX_MISSING_COUNT) { 2492 mpr_dprint(sc, MPR_MAPPING, "%s: " 2493 "Enclosure %d is missing from the " 2494 "topology. Update its missing " 2495 "count.\n", __func__, i); 2496 et_entry->missing_count++; 2497 if (et_entry->dpm_entry_num != 2498 MPR_DPM_BAD_IDX) { 2499 _mapping_commit_enc_entry(sc, 2500 et_entry); 2501 } 2502 } 2503 et_entry->init_complete = 1; 2504 } 2505 } 2506 if (!sc->ir_firmware) 2507 return; 2508 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2509 mt_entry = &sc->mapping_table[start_idx]; 2510 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2511 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2512 start_idx = 0; 2513 end_idx = sc->max_devices - 1; 2514 mt_entry = sc->mapping_table; 2515 } 2516 2517 /* 2518 * The start and end indices have been set above according to the 2519 * mapping type. Go through these mappings and update any entries that 2520 * do not have the init_complete flag set, which means they are missing. 2521 */ 2522 if (end_idx == 0) 2523 return; 2524 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) { 2525 if (mt_entry->device_info & MPR_DEV_RESERVED 2526 && !mt_entry->physical_id) 2527 mt_entry->init_complete = 1; 2528 else if (mt_entry->device_info & MPR_DEV_RESERVED) { 2529 if (!mt_entry->init_complete) { 2530 mpr_dprint(sc, MPR_MAPPING, "%s: Device in " 2531 "mapping table at index %d is missing from " 2532 "topology. Update its missing count.\n", 2533 __func__, i); 2534 if (mt_entry->missing_count < 2535 MPR_MAX_MISSING_COUNT) { 2536 mt_entry->missing_count++; 2537 if (mt_entry->dpm_entry_num != 2538 MPR_DPM_BAD_IDX) { 2539 _mapping_commit_map_entry(sc, 2540 mt_entry); 2541 } 2542 } 2543 mt_entry->init_complete = 1; 2544 } 2545 } 2546 } 2547 } 2548 2549 /** 2550 * mpr_mapping_initialize - initialize mapping tables 2551 * @sc: per adapter object 2552 * 2553 * Read controller persitant mapping tables into internal data area. 2554 * 2555 * Return 0 for success or non-zero for failure. 2556 */ 2557 int 2558 mpr_mapping_initialize(struct mpr_softc *sc) 2559 { 2560 uint16_t volume_mapping_flags, dpm_pg0_sz; 2561 uint32_t i; 2562 Mpi2ConfigReply_t mpi_reply; 2563 int error; 2564 uint8_t retry_count; 2565 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2566 2567 /* The additional 1 accounts for the virtual enclosure 2568 * created for the controller 2569 */ 2570 sc->max_enclosures = sc->facts->MaxEnclosures + 1; 2571 sc->max_expanders = sc->facts->MaxSasExpanders; 2572 sc->max_volumes = sc->facts->MaxVolumes; 2573 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes; 2574 sc->pending_map_events = 0; 2575 sc->num_enc_table_entries = 0; 2576 sc->num_rsvd_entries = 0; 2577 sc->max_dpm_entries = le16toh(sc->ioc_pg8.MaxPersistentEntries); 2578 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0; 2579 sc->track_mapping_events = 0; 2580 2581 mpr_dprint(sc, MPR_MAPPING, "%s: Mapping table has a max of %d entries " 2582 "and DPM has a max of %d entries.\n", __func__, sc->max_devices, 2583 sc->max_dpm_entries); 2584 2585 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING) 2586 sc->is_dpm_enable = 0; 2587 2588 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 2589 sc->num_rsvd_entries = 1; 2590 2591 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 2592 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 2593 if (sc->ir_firmware && (volume_mapping_flags == 2594 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)) 2595 sc->num_rsvd_entries += sc->max_volumes; 2596 2597 error = mpr_mapping_allocate_memory(sc); 2598 if (error) 2599 return (error); 2600 2601 for (i = 0; i < sc->max_devices; i++) 2602 _mapping_clear_map_entry(sc->mapping_table + i); 2603 2604 for (i = 0; i < sc->max_enclosures; i++) 2605 _mapping_clear_enc_entry(sc->enclosure_table + i); 2606 2607 for (i = 0; i < sc->max_devices; i++) { 2608 sc->removal_table[i].dev_handle = 0; 2609 sc->removal_table[i].dpm_entry_num = MPR_DPM_BAD_IDX; 2610 } 2611 2612 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries); 2613 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries); 2614 2615 if (sc->is_dpm_enable) { 2616 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2617 (sc->max_dpm_entries * 2618 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2619 retry_count = 0; 2620 2621 retry_read_dpm: 2622 if (mpr_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0, 2623 dpm_pg0_sz)) { 2624 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: DPM page " 2625 "read failed.\n", __func__); 2626 if (retry_count < 3) { 2627 retry_count++; 2628 goto retry_read_dpm; 2629 } 2630 sc->is_dpm_enable = 0; 2631 } 2632 } 2633 2634 if (sc->is_dpm_enable) 2635 _mapping_process_dpm_pg0(sc); 2636 if (! sc->is_dpm_enable) { 2637 mpr_dprint(sc, MPR_MAPPING, "%s: DPM processing is disabled. " 2638 "Device mappings will not persist across reboots or " 2639 "resets.\n", __func__); 2640 } 2641 2642 sc->track_mapping_events = 1; 2643 return 0; 2644 } 2645 2646 /** 2647 * mpr_mapping_exit - clear mapping table and associated memory 2648 * @sc: per adapter object 2649 * 2650 * Returns nothing. 2651 */ 2652 void 2653 mpr_mapping_exit(struct mpr_softc *sc) 2654 { 2655 _mapping_flush_dpm_pages(sc); 2656 mpr_mapping_free_memory(sc); 2657 } 2658 2659 /** 2660 * mpr_mapping_get_tid - return the target id for sas device and handle 2661 * @sc: per adapter object 2662 * @sas_address: sas address of the device 2663 * @handle: device handle 2664 * 2665 * Returns valid target ID on success or BAD_ID. 2666 */ 2667 unsigned int 2668 mpr_mapping_get_tid(struct mpr_softc *sc, uint64_t sas_address, u16 handle) 2669 { 2670 u32 map_idx; 2671 struct dev_mapping_table *mt_entry; 2672 2673 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 2674 mt_entry = &sc->mapping_table[map_idx]; 2675 if (mt_entry->dev_handle == handle && mt_entry->physical_id == 2676 sas_address) 2677 return mt_entry->id; 2678 } 2679 2680 return MPR_MAP_BAD_ID; 2681 } 2682 2683 /** 2684 * mpr_mapping_get_tid_from_handle - find a target id in mapping table using 2685 * only the dev handle. This is just a wrapper function for the local function 2686 * _mapping_get_mt_idx_from_handle. 2687 * @sc: per adapter object 2688 * @handle: device handle 2689 * 2690 * Returns valid target ID on success or BAD_ID. 2691 */ 2692 unsigned int 2693 mpr_mapping_get_tid_from_handle(struct mpr_softc *sc, u16 handle) 2694 { 2695 return (_mapping_get_mt_idx_from_handle(sc, handle)); 2696 } 2697 2698 /** 2699 * mpr_mapping_get_raid_tid - return the target id for raid device 2700 * @sc: per adapter object 2701 * @wwid: world wide identifier for raid volume 2702 * @volHandle: volume device handle 2703 * 2704 * Returns valid target ID on success or BAD_ID. 2705 */ 2706 unsigned int 2707 mpr_mapping_get_raid_tid(struct mpr_softc *sc, u64 wwid, u16 volHandle) 2708 { 2709 u32 start_idx, end_idx, map_idx; 2710 struct dev_mapping_table *mt_entry; 2711 2712 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2713 mt_entry = &sc->mapping_table[start_idx]; 2714 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 2715 if (mt_entry->dev_handle == volHandle && 2716 mt_entry->physical_id == wwid) 2717 return mt_entry->id; 2718 } 2719 2720 return MPR_MAP_BAD_ID; 2721 } 2722 2723 /** 2724 * mpr_mapping_get_raid_tid_from_handle - find raid device in mapping table 2725 * using only the volume dev handle. This is just a wrapper function for the 2726 * local function _mapping_get_ir_mt_idx_from_handle. 2727 * @sc: per adapter object 2728 * @volHandle: volume device handle 2729 * 2730 * Returns valid target ID on success or BAD_ID. 2731 */ 2732 unsigned int 2733 mpr_mapping_get_raid_tid_from_handle(struct mpr_softc *sc, u16 volHandle) 2734 { 2735 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle)); 2736 } 2737 2738 /** 2739 * mpr_mapping_enclosure_dev_status_change_event - handle enclosure events 2740 * @sc: per adapter object 2741 * @event_data: event data payload 2742 * 2743 * Return nothing. 2744 */ 2745 void 2746 mpr_mapping_enclosure_dev_status_change_event(struct mpr_softc *sc, 2747 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 2748 { 2749 u8 enc_idx, missing_count; 2750 struct enc_mapping_table *et_entry; 2751 Mpi2DriverMap0Entry_t *dpm_entry; 2752 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2753 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2754 u8 update_phy_bits = 0; 2755 u32 saved_phy_bits; 2756 uint64_t temp64_var; 2757 2758 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) != 2759 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) 2760 goto out; 2761 2762 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 2763 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2764 2765 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) { 2766 if (!event_data->NumSlots) { 2767 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure " 2768 "with handle = 0x%x reported 0 slots.\n", __func__, 2769 le16toh(event_data->EnclosureHandle)); 2770 goto out; 2771 } 2772 temp64_var = event_data->EnclosureLogicalID.High; 2773 temp64_var = (temp64_var << 32) | 2774 event_data->EnclosureLogicalID.Low; 2775 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var, 2776 event_data->PhyBits); 2777 2778 /* 2779 * If the Added enclosure is already in the Enclosure Table, 2780 * make sure that all the enclosure info is up to date. If 2781 * the enclosure was missing and has just been added back, or if 2782 * the enclosure's Phy Bits have changed, clear the missing 2783 * count and update the Phy Bits in the mapping table and in the 2784 * DPM, if it's being used. 2785 */ 2786 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2787 u16 new_num_slots; 2788 2789 et_entry = &sc->enclosure_table[enc_idx]; 2790 if (et_entry->init_complete && 2791 !et_entry->missing_count) { 2792 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d " 2793 "is already present with handle = 0x%x\n", 2794 __func__, enc_idx, et_entry->enc_handle); 2795 goto out; 2796 } 2797 et_entry->enc_handle = le16toh(event_data-> 2798 EnclosureHandle); 2799 et_entry->start_slot = le16toh(event_data->StartSlot); 2800 new_num_slots = le16toh(event_data->NumSlots); 2801 if (new_num_slots < sc->encl_min_slots) { 2802 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d num_slots %d, overriding with %d.\n", 2803 __func__, enc_idx, new_num_slots, sc->encl_min_slots); 2804 new_num_slots = sc->encl_min_slots; 2805 } 2806 if (et_entry->num_slots != new_num_slots) { 2807 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d old num_slots %d, new %d.\n", 2808 __func__, enc_idx, et_entry->num_slots, sc->encl_min_slots); 2809 et_entry->num_slots = new_num_slots; 2810 } 2811 saved_phy_bits = et_entry->phy_bits; 2812 et_entry->phy_bits |= le32toh(event_data->PhyBits); 2813 if (saved_phy_bits != et_entry->phy_bits) 2814 update_phy_bits = 1; 2815 if (et_entry->missing_count || update_phy_bits) { 2816 et_entry->missing_count = 0; 2817 if (sc->is_dpm_enable && 2818 et_entry->dpm_entry_num != 2819 MPR_DPM_BAD_IDX) { 2820 dpm_entry += et_entry->dpm_entry_num; 2821 missing_count = 2822 (u8)(dpm_entry->MappingInformation & 2823 MPI2_DRVMAP0_MAPINFO_MISSING_MASK); 2824 if (missing_count || update_phy_bits) { 2825 dpm_entry->MappingInformation 2826 = et_entry->num_slots; 2827 dpm_entry->MappingInformation 2828 <<= map_shift; 2829 dpm_entry->PhysicalBitsMapping 2830 = et_entry->phy_bits; 2831 sc->dpm_flush_entry[et_entry-> 2832 dpm_entry_num] = 1; 2833 } 2834 } 2835 } 2836 } else { 2837 /* 2838 * This is a new enclosure that is being added. 2839 * Initialize the Enclosure Table entry. It will be 2840 * finalized when a device is added for the enclosure 2841 * and the enclosure has enough space in the Mapping 2842 * Table to map its devices. 2843 */ 2844 if (sc->num_enc_table_entries < sc->max_enclosures) { 2845 enc_idx = sc->num_enc_table_entries; 2846 sc->num_enc_table_entries++; 2847 } else { 2848 enc_idx = _mapping_get_high_missing_et_idx(sc); 2849 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2850 et_entry = &sc->enclosure_table[enc_idx]; 2851 _mapping_add_to_removal_table(sc, 2852 et_entry->dpm_entry_num); 2853 _mapping_clear_enc_entry(et_entry); 2854 } 2855 } 2856 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2857 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2858 "Enclosure cannot be added to mapping " 2859 "table because it's full.\n", __func__); 2860 goto out; 2861 } 2862 et_entry = &sc->enclosure_table[enc_idx]; 2863 et_entry->enc_handle = le16toh(event_data-> 2864 EnclosureHandle); 2865 et_entry->enclosure_id = le64toh(event_data-> 2866 EnclosureLogicalID.High); 2867 et_entry->enclosure_id = 2868 ((et_entry->enclosure_id << 32) | 2869 le64toh(event_data->EnclosureLogicalID.Low)); 2870 et_entry->start_index = MPR_MAPTABLE_BAD_IDX; 2871 et_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 2872 et_entry->num_slots = le16toh(event_data->NumSlots); 2873 if (et_entry->num_slots < sc->encl_min_slots) { 2874 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure %d num_slots is %d, overriding with %d.\n", 2875 __func__, enc_idx, et_entry->num_slots, sc->encl_min_slots); 2876 et_entry->num_slots = sc->encl_min_slots; 2877 } 2878 et_entry->start_slot = le16toh(event_data->StartSlot); 2879 et_entry->phy_bits = le32toh(event_data->PhyBits); 2880 } 2881 et_entry->init_complete = 1; 2882 } else if (event_data->ReasonCode == 2883 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) { 2884 /* 2885 * An enclosure was removed. Update its missing count and then 2886 * update the DPM entry with the new missing count for the 2887 * enclosure. 2888 */ 2889 enc_idx = _mapping_get_enc_idx_from_handle(sc, 2890 le16toh(event_data->EnclosureHandle)); 2891 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2892 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Cannot " 2893 "unmap enclosure with handle 0x%04x because it " 2894 "has already been deleted.\n", __func__, 2895 le16toh(event_data->EnclosureHandle)); 2896 goto out; 2897 } 2898 et_entry = &sc->enclosure_table[enc_idx]; 2899 if (et_entry->missing_count < MPR_MAX_MISSING_COUNT) 2900 et_entry->missing_count++; 2901 if (sc->is_dpm_enable && 2902 et_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2903 dpm_entry += et_entry->dpm_entry_num; 2904 dpm_entry->MappingInformation = et_entry->num_slots; 2905 dpm_entry->MappingInformation <<= map_shift; 2906 dpm_entry->MappingInformation |= 2907 et_entry->missing_count; 2908 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1; 2909 } 2910 et_entry->init_complete = 1; 2911 } 2912 2913 out: 2914 _mapping_flush_dpm_pages(sc); 2915 if (sc->pending_map_events) 2916 sc->pending_map_events--; 2917 } 2918 2919 /** 2920 * mpr_mapping_topology_change_event - handle topology change events 2921 * @sc: per adapter object 2922 * @event_data: event data payload 2923 * 2924 * Returns nothing. 2925 */ 2926 void 2927 mpr_mapping_topology_change_event(struct mpr_softc *sc, 2928 Mpi2EventDataSasTopologyChangeList_t *event_data) 2929 { 2930 struct _map_topology_change topo_change; 2931 struct _map_phy_change *phy_change; 2932 Mpi2EventSasTopoPhyEntry_t *event_phy_change; 2933 u8 i, num_entries; 2934 2935 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2936 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle); 2937 num_entries = event_data->NumEntries; 2938 topo_change.num_entries = num_entries; 2939 topo_change.start_phy_num = event_data->StartPhyNum; 2940 topo_change.num_phys = event_data->NumPhys; 2941 topo_change.exp_status = event_data->ExpStatus; 2942 event_phy_change = event_data->PHY; 2943 topo_change.phy_details = NULL; 2944 2945 if (!num_entries) 2946 goto out; 2947 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries, 2948 M_MPR, M_NOWAIT|M_ZERO); 2949 topo_change.phy_details = phy_change; 2950 if (!phy_change) 2951 goto out; 2952 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) { 2953 phy_change->dev_handle = le16toh(event_phy_change-> 2954 AttachedDevHandle); 2955 phy_change->reason = event_phy_change->PhyStatus & 2956 MPI2_EVENT_SAS_TOPO_RC_MASK; 2957 } 2958 _mapping_update_missing_count(sc, &topo_change); 2959 _mapping_get_dev_info(sc, &topo_change); 2960 _mapping_clear_removed_entries(sc); 2961 _mapping_add_new_device(sc, &topo_change); 2962 2963 out: 2964 free(topo_change.phy_details, M_MPR); 2965 _mapping_flush_dpm_pages(sc); 2966 if (sc->pending_map_events) 2967 sc->pending_map_events--; 2968 } 2969 2970 /** 2971 * mpr_mapping_pcie_topology_change_event - handle PCIe topology change events 2972 * @sc: per adapter object 2973 * @event_data: event data payload 2974 * 2975 * Returns nothing. 2976 */ 2977 void 2978 mpr_mapping_pcie_topology_change_event(struct mpr_softc *sc, 2979 Mpi26EventDataPCIeTopologyChangeList_t *event_data) 2980 { 2981 struct _map_pcie_topology_change topo_change; 2982 struct _map_port_change *port_change; 2983 Mpi26EventPCIeTopoPortEntry_t *event_port_change; 2984 u8 i, num_entries; 2985 2986 topo_change.switch_dev_handle = le16toh(event_data->SwitchDevHandle); 2987 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2988 num_entries = event_data->NumEntries; 2989 topo_change.num_entries = num_entries; 2990 topo_change.start_port_num = event_data->StartPortNum; 2991 topo_change.num_ports = event_data->NumPorts; 2992 topo_change.switch_status = event_data->SwitchStatus; 2993 event_port_change = event_data->PortEntry; 2994 topo_change.port_details = NULL; 2995 2996 if (!num_entries) 2997 goto out; 2998 port_change = malloc(sizeof(struct _map_port_change) * num_entries, 2999 M_MPR, M_NOWAIT|M_ZERO); 3000 topo_change.port_details = port_change; 3001 if (!port_change) 3002 goto out; 3003 for (i = 0; i < num_entries; i++, event_port_change++, port_change++) { 3004 port_change->dev_handle = le16toh(event_port_change-> 3005 AttachedDevHandle); 3006 port_change->reason = event_port_change->PortStatus; 3007 } 3008 _mapping_update_pcie_missing_count(sc, &topo_change); 3009 _mapping_get_pcie_dev_info(sc, &topo_change); 3010 _mapping_clear_removed_entries(sc); 3011 _mapping_add_new_pcie_device(sc, &topo_change); 3012 3013 out: 3014 free(topo_change.port_details, M_MPR); 3015 _mapping_flush_dpm_pages(sc); 3016 if (sc->pending_map_events) 3017 sc->pending_map_events--; 3018 } 3019 3020 /** 3021 * mpr_mapping_ir_config_change_event - handle IR config change list events 3022 * @sc: per adapter object 3023 * @event_data: event data payload 3024 * 3025 * Returns nothing. 3026 */ 3027 void 3028 mpr_mapping_ir_config_change_event(struct mpr_softc *sc, 3029 Mpi2EventDataIrConfigChangeList_t *event_data) 3030 { 3031 Mpi2EventIrConfigElement_t *element; 3032 int i; 3033 u64 *wwid_table; 3034 u32 map_idx, flags; 3035 struct dev_mapping_table *mt_entry; 3036 u16 element_flags; 3037 3038 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPR, 3039 M_NOWAIT | M_ZERO); 3040 if (!wwid_table) 3041 goto out; 3042 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3043 flags = le32toh(event_data->Flags); 3044 3045 /* 3046 * For volume changes, get the WWID for the volume and put it in a 3047 * table to be used in the processing of the IR change event. 3048 */ 3049 for (i = 0; i < event_data->NumElements; i++, element++) { 3050 element_flags = le16toh(element->ElementFlags); 3051 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) && 3052 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) && 3053 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE) 3054 && (element->ReasonCode != 3055 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) 3056 continue; 3057 if ((element_flags & 3058 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) == 3059 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) { 3060 mpr_config_get_volume_wwid(sc, 3061 le16toh(element->VolDevHandle), &wwid_table[i]); 3062 } 3063 } 3064 3065 /* 3066 * Check the ReasonCode for each element in the IR event and Add/Remove 3067 * Volumes or Physical Disks of Volumes to/from the mapping table. Use 3068 * the WWIDs gotten above in wwid_table. 3069 */ 3070 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3071 goto out; 3072 else { 3073 element = (Mpi2EventIrConfigElement_t *)&event_data-> 3074 ConfigElement[0]; 3075 for (i = 0; i < event_data->NumElements; i++, element++) { 3076 if (element->ReasonCode == 3077 MPI2_EVENT_IR_CHANGE_RC_ADDED || 3078 element->ReasonCode == 3079 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) { 3080 map_idx = _mapping_get_ir_mt_idx_from_wwid 3081 (sc, wwid_table[i]); 3082 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 3083 /* 3084 * The volume is already in the mapping 3085 * table. Just update it's info. 3086 */ 3087 mt_entry = &sc->mapping_table[map_idx]; 3088 mt_entry->id = map_idx; 3089 mt_entry->dev_handle = le16toh 3090 (element->VolDevHandle); 3091 mt_entry->device_info = 3092 MPR_DEV_RESERVED | MPR_MAP_IN_USE; 3093 _mapping_update_ir_missing_cnt(sc, 3094 map_idx, element, wwid_table[i]); 3095 continue; 3096 } 3097 3098 /* 3099 * Volume is not in mapping table yet. Find a 3100 * free entry in the mapping table at the 3101 * volume mapping locations. If no entries are 3102 * available, this is an error because it means 3103 * there are more volumes than can be mapped 3104 * and that should never happen for volumes. 3105 */ 3106 map_idx = _mapping_get_free_ir_mt_idx(sc); 3107 if (map_idx == MPR_MAPTABLE_BAD_IDX) 3108 { 3109 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 3110 "%s: failed to add the volume with " 3111 "handle 0x%04x because there is no " 3112 "free space available in the " 3113 "mapping table\n", __func__, 3114 le16toh(element->VolDevHandle)); 3115 continue; 3116 } 3117 mt_entry = &sc->mapping_table[map_idx]; 3118 mt_entry->physical_id = wwid_table[i]; 3119 mt_entry->id = map_idx; 3120 mt_entry->dev_handle = le16toh(element-> 3121 VolDevHandle); 3122 mt_entry->device_info = MPR_DEV_RESERVED | 3123 MPR_MAP_IN_USE; 3124 _mapping_update_ir_missing_cnt(sc, map_idx, 3125 element, wwid_table[i]); 3126 } else if (element->ReasonCode == 3127 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 3128 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc, 3129 wwid_table[i]); 3130 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3131 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3132 "to remove a volume because it has " 3133 "already been removed.\n", 3134 __func__); 3135 continue; 3136 } 3137 _mapping_update_ir_missing_cnt(sc, map_idx, 3138 element, wwid_table[i]); 3139 } else if (element->ReasonCode == 3140 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 3141 map_idx = _mapping_get_mt_idx_from_handle(sc, 3142 le16toh(element->VolDevHandle)); 3143 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3144 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3145 "to remove volume with handle " 3146 "0x%04x because it has already " 3147 "been removed.\n", __func__, 3148 le16toh(element->VolDevHandle)); 3149 continue; 3150 } 3151 mt_entry = &sc->mapping_table[map_idx]; 3152 _mapping_update_ir_missing_cnt(sc, map_idx, 3153 element, mt_entry->physical_id); 3154 } 3155 } 3156 } 3157 3158 out: 3159 _mapping_flush_dpm_pages(sc); 3160 free(wwid_table, M_MPR); 3161 if (sc->pending_map_events) 3162 sc->pending_map_events--; 3163 } 3164