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