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