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 enclosure handle 0x%04x " 1217 "is not in the mapping table\n", __func__, 1218 phy_change->dev_handle, 1219 topo_change->enc_handle); 1220 continue; 1221 } 1222 if (!((phy_change->device_info & 1223 MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1224 (phy_change->device_info & 1225 (MPI2_SAS_DEVICE_INFO_SSP_TARGET | 1226 MPI2_SAS_DEVICE_INFO_STP_TARGET | 1227 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) { 1228 phy_change->is_processed = 1; 1229 continue; 1230 } 1231 et_entry = &sc->enclosure_table[enc_idx]; 1232 1233 /* 1234 * If the enclosure already has a start_index, it's been 1235 * mapped, so go to the next Topo change. 1236 */ 1237 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1238 continue; 1239 1240 /* 1241 * If the Expander Handle is 0, the devices are direct 1242 * attached. In that case, the start_index must be just 1243 * after the reserved entries. Otherwise, find space in 1244 * the mapping table for the enclosure's devices. 1245 */ 1246 if (!topo_change->exp_handle) { 1247 map_idx = sc->num_rsvd_entries; 1248 et_entry->start_index = map_idx; 1249 } else { 1250 map_idx = _mapping_find_enc_map_space(sc, 1251 et_entry); 1252 et_entry->start_index = map_idx; 1253 1254 /* 1255 * If space cannot be found to hold all of the 1256 * enclosure's devices in the mapping table, 1257 * there's no need to continue checking the 1258 * other devices in this event. Set all of the 1259 * phy_details for this event (if the change is 1260 * for an add) as already processed because none 1261 * of these devices can be added to the mapping 1262 * table. 1263 */ 1264 if (et_entry->start_index == 1265 MPR_MAPTABLE_BAD_IDX) { 1266 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1267 "%s: failed to add the enclosure " 1268 "with ID 0x%016jx because there is " 1269 "no free space available in the " 1270 "mapping table for all of the " 1271 "enclosure's devices.\n", __func__, 1272 (uintmax_t)et_entry->enclosure_id); 1273 phy_change->is_processed = 1; 1274 for (phy_idx = 0; phy_idx < 1275 topo_change->num_entries; 1276 phy_idx++) { 1277 tmp_phy_change = 1278 &topo_change->phy_details 1279 [phy_idx]; 1280 if (tmp_phy_change->reason == 1281 add_code) 1282 tmp_phy_change-> 1283 is_processed = 1; 1284 } 1285 break; 1286 } 1287 } 1288 1289 /* 1290 * Found space in the mapping table for this enclosure. 1291 * Initialize each mapping table entry for the 1292 * enclosure. 1293 */ 1294 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1295 "entries for the enclosure, starting at map index " 1296 " %d.\n", __func__, et_entry->num_slots, map_idx); 1297 mt_entry = &sc->mapping_table[map_idx]; 1298 for (index = map_idx; index < (et_entry->num_slots 1299 + map_idx); index++, mt_entry++) { 1300 mt_entry->device_info = MPR_DEV_RESERVED; 1301 mt_entry->physical_id = et_entry->enclosure_id; 1302 mt_entry->phy_bits = et_entry->phy_bits; 1303 mt_entry->missing_count = 0; 1304 } 1305 } 1306 } 1307 } 1308 1309 /** 1310 * _mapping_get_pcie_dev_info -get information about newly added PCIe devices 1311 * @sc: per adapter object 1312 * @topo_change: Topology change event entry 1313 * 1314 * Searches through the PCIe topology change event list and issues PCIe device 1315 * pg0 requests for the newly added PCIe device. If the device is in an 1316 * enclosure, search for available space in the enclosure mapping table for the 1317 * device and reserve that space. 1318 * 1319 * Returns nothing 1320 */ 1321 static void 1322 _mapping_get_pcie_dev_info(struct mpr_softc *sc, 1323 struct _map_pcie_topology_change *topo_change) 1324 { 1325 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1326 Mpi2ConfigReply_t mpi_reply; 1327 Mpi26PCIeDevicePage0_t pcie_device_pg0; 1328 u8 entry, enc_idx, port_idx; 1329 u32 map_idx, index; 1330 struct _map_port_change *port_change, *tmp_port_change; 1331 uint64_t pcie_wwid; 1332 struct enc_mapping_table *et_entry; 1333 struct dev_mapping_table *mt_entry; 1334 u8 add_code = MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED; 1335 1336 for (entry = 0; entry < topo_change->num_entries; entry++) { 1337 port_change = &topo_change->port_details[entry]; 1338 if (port_change->is_processed || !port_change->dev_handle || 1339 port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED) 1340 continue; 1341 if (mpr_config_get_pcie_device_pg0(sc, &mpi_reply, 1342 &pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, 1343 port_change->dev_handle)) { 1344 port_change->is_processed = 1; 1345 continue; 1346 } 1347 1348 pcie_wwid = pcie_device_pg0.WWID.High; 1349 pcie_wwid = (pcie_wwid << 32) | pcie_device_pg0.WWID.Low; 1350 port_change->physical_id = pcie_wwid; 1351 port_change->slot = le16toh(pcie_device_pg0.Slot); 1352 port_change->device_info = le32toh(pcie_device_pg0.DeviceInfo); 1353 1354 /* 1355 * When using Enc/Slot mapping, if this device is an enclosure 1356 * make sure that all of its slots can fit into the mapping 1357 * table. 1358 */ 1359 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1360 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1361 /* 1362 * The enclosure should already be in the enclosure 1363 * table due to the Enclosure Add event. If not, just 1364 * continue, nothing can be done. 1365 */ 1366 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1367 topo_change->enc_handle); 1368 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1369 port_change->is_processed = 1; 1370 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1371 "failed to add the device with handle " 1372 "0x%04x because enclosure handle 0x%04x " 1373 "is not in the mapping table\n", __func__, 1374 port_change->dev_handle, 1375 topo_change->enc_handle); 1376 continue; 1377 } 1378 if (!(port_change->device_info & 1379 MPI26_PCIE_DEVINFO_NVME)) { 1380 port_change->is_processed = 1; 1381 continue; 1382 } 1383 et_entry = &sc->enclosure_table[enc_idx]; 1384 1385 /* 1386 * If the enclosure already has a start_index, it's been 1387 * mapped, so go to the next Topo change. 1388 */ 1389 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1390 continue; 1391 1392 /* 1393 * If the Switch Handle is 0, the devices are direct 1394 * attached. In that case, the start_index must be just 1395 * after the reserved entries. Otherwise, find space in 1396 * the mapping table for the enclosure's devices. 1397 */ 1398 if (!topo_change->switch_dev_handle) { 1399 map_idx = sc->num_rsvd_entries; 1400 et_entry->start_index = map_idx; 1401 } else { 1402 map_idx = _mapping_find_enc_map_space(sc, 1403 et_entry); 1404 et_entry->start_index = map_idx; 1405 1406 /* 1407 * If space cannot be found to hold all of the 1408 * enclosure's devices in the mapping table, 1409 * there's no need to continue checking the 1410 * other devices in this event. Set all of the 1411 * port_details for this event (if the change is 1412 * for an add) as already processed because none 1413 * of these devices can be added to the mapping 1414 * table. 1415 */ 1416 if (et_entry->start_index == 1417 MPR_MAPTABLE_BAD_IDX) { 1418 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1419 "%s: failed to add the enclosure " 1420 "with ID 0x%016jx because there is " 1421 "no free space available in the " 1422 "mapping table for all of the " 1423 "enclosure's devices.\n", __func__, 1424 (uintmax_t)et_entry->enclosure_id); 1425 port_change->is_processed = 1; 1426 for (port_idx = 0; port_idx < 1427 topo_change->num_entries; 1428 port_idx++) { 1429 tmp_port_change = 1430 &topo_change->port_details 1431 [port_idx]; 1432 if (tmp_port_change->reason == 1433 add_code) 1434 tmp_port_change-> 1435 is_processed = 1; 1436 } 1437 break; 1438 } 1439 } 1440 1441 /* 1442 * Found space in the mapping table for this enclosure. 1443 * Initialize each mapping table entry for the 1444 * enclosure. 1445 */ 1446 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1447 "entries for the enclosure, starting at map index " 1448 " %d.\n", __func__, et_entry->num_slots, map_idx); 1449 mt_entry = &sc->mapping_table[map_idx]; 1450 for (index = map_idx; index < (et_entry->num_slots 1451 + map_idx); index++, mt_entry++) { 1452 mt_entry->device_info = MPR_DEV_RESERVED; 1453 mt_entry->physical_id = et_entry->enclosure_id; 1454 mt_entry->phy_bits = et_entry->phy_bits; 1455 mt_entry->missing_count = 0; 1456 } 1457 } 1458 } 1459 } 1460 1461 /** 1462 * _mapping_set_mid_to_eid -set map table data from enclosure table 1463 * @sc: per adapter object 1464 * @et_entry: enclosure entry 1465 * 1466 * Returns nothing 1467 */ 1468 static inline void 1469 _mapping_set_mid_to_eid(struct mpr_softc *sc, 1470 struct enc_mapping_table *et_entry) 1471 { 1472 struct dev_mapping_table *mt_entry; 1473 u16 slots = et_entry->num_slots, map_idx; 1474 u32 start_idx = et_entry->start_index; 1475 1476 if (start_idx != MPR_MAPTABLE_BAD_IDX) { 1477 mt_entry = &sc->mapping_table[start_idx]; 1478 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++) 1479 mt_entry->physical_id = et_entry->enclosure_id; 1480 } 1481 } 1482 1483 /** 1484 * _mapping_clear_removed_entries - mark the entries to be cleared 1485 * @sc: per adapter object 1486 * 1487 * Search through the removal table and mark the entries which needs to be 1488 * flushed to DPM and also updates the map table and enclosure table by 1489 * clearing the corresponding entries. 1490 * 1491 * Returns nothing 1492 */ 1493 static void 1494 _mapping_clear_removed_entries(struct mpr_softc *sc) 1495 { 1496 u32 remove_idx; 1497 struct map_removal_table *remove_entry; 1498 Mpi2DriverMap0Entry_t *dpm_entry; 1499 u8 done_flag = 0, num_entries, m, i; 1500 struct enc_mapping_table *et_entry, *from, *to; 1501 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1502 1503 if (sc->is_dpm_enable) { 1504 remove_entry = sc->removal_table; 1505 for (remove_idx = 0; remove_idx < sc->max_devices; 1506 remove_idx++, remove_entry++) { 1507 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 1508 dpm_entry = (Mpi2DriverMap0Entry_t *) 1509 ((u8 *) sc->dpm_pg0 + 1510 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1511 dpm_entry += remove_entry->dpm_entry_num; 1512 dpm_entry->PhysicalIdentifier.Low = 0; 1513 dpm_entry->PhysicalIdentifier.High = 0; 1514 dpm_entry->DeviceIndex = 0; 1515 dpm_entry->MappingInformation = 0; 1516 dpm_entry->PhysicalBitsMapping = 0; 1517 sc->dpm_flush_entry[remove_entry-> 1518 dpm_entry_num] = 1; 1519 sc->dpm_entry_used[remove_entry->dpm_entry_num] 1520 = 0; 1521 remove_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 1522 } 1523 } 1524 } 1525 1526 /* 1527 * When using Enc/Slot mapping, if a new enclosure was added and old 1528 * enclosure space was needed, the enclosure table may now have gaps 1529 * that need to be closed. All enclosure mappings need to be contiguous 1530 * so that space can be reused correctly if available. 1531 */ 1532 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1533 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1534 num_entries = sc->num_enc_table_entries; 1535 while (!done_flag) { 1536 done_flag = 1; 1537 et_entry = sc->enclosure_table; 1538 for (i = 0; i < num_entries; i++, et_entry++) { 1539 if (!et_entry->enc_handle && et_entry-> 1540 init_complete) { 1541 done_flag = 0; 1542 if (i != (num_entries - 1)) { 1543 from = &sc->enclosure_table 1544 [i+1]; 1545 to = &sc->enclosure_table[i]; 1546 for (m = i; m < (num_entries - 1547 1); m++, from++, to++) { 1548 _mapping_set_mid_to_eid 1549 (sc, to); 1550 *to = *from; 1551 } 1552 _mapping_clear_enc_entry(to); 1553 sc->num_enc_table_entries--; 1554 num_entries = 1555 sc->num_enc_table_entries; 1556 } else { 1557 _mapping_clear_enc_entry 1558 (et_entry); 1559 sc->num_enc_table_entries--; 1560 num_entries = 1561 sc->num_enc_table_entries; 1562 } 1563 } 1564 } 1565 } 1566 } 1567 } 1568 1569 /** 1570 * _mapping_add_new_device -Add the new device into mapping table 1571 * @sc: per adapter object 1572 * @topo_change: Topology change event entry 1573 * 1574 * Search through the topology change event list and update map table, 1575 * enclosure table and DPM pages for the newly added devices. 1576 * 1577 * Returns nothing 1578 */ 1579 static void 1580 _mapping_add_new_device(struct mpr_softc *sc, 1581 struct _map_topology_change *topo_change) 1582 { 1583 u8 enc_idx, missing_cnt, is_removed = 0; 1584 u16 dpm_idx; 1585 u32 search_idx, map_idx; 1586 u32 entry; 1587 struct dev_mapping_table *mt_entry; 1588 struct enc_mapping_table *et_entry; 1589 struct _map_phy_change *phy_change; 1590 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1591 Mpi2DriverMap0Entry_t *dpm_entry; 1592 uint64_t temp64_var; 1593 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1594 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1595 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1596 1597 for (entry = 0; entry < topo_change->num_entries; entry++) { 1598 phy_change = &topo_change->phy_details[entry]; 1599 if (phy_change->is_processed) 1600 continue; 1601 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED || 1602 !phy_change->dev_handle) { 1603 phy_change->is_processed = 1; 1604 continue; 1605 } 1606 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1607 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1608 enc_idx = _mapping_get_enc_idx_from_handle 1609 (sc, topo_change->enc_handle); 1610 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1611 phy_change->is_processed = 1; 1612 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1613 "failed to add the device with handle " 1614 "0x%04x because enclosure handle 0x%04x " 1615 "is not in the mapping table\n", __func__, 1616 phy_change->dev_handle, 1617 topo_change->enc_handle); 1618 continue; 1619 } 1620 1621 /* 1622 * If the enclosure's start_index is BAD here, it means 1623 * that there is no room in the mapping table to cover 1624 * all of the devices that could be in the enclosure. 1625 * There's no reason to process any of the devices for 1626 * this enclosure since they can't be mapped. 1627 */ 1628 et_entry = &sc->enclosure_table[enc_idx]; 1629 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1630 phy_change->is_processed = 1; 1631 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1632 "failed to add the device with handle " 1633 "0x%04x because there is no free space " 1634 "available in the mapping table\n", 1635 __func__, phy_change->dev_handle); 1636 continue; 1637 } 1638 1639 /* 1640 * Add this device to the mapping table at the correct 1641 * offset where space was found to map the enclosure. 1642 * Then setup the DPM entry information if being used. 1643 */ 1644 map_idx = et_entry->start_index + phy_change->slot - 1645 et_entry->start_slot; 1646 mt_entry = &sc->mapping_table[map_idx]; 1647 mt_entry->physical_id = phy_change->physical_id; 1648 mt_entry->id = map_idx; 1649 mt_entry->dev_handle = phy_change->dev_handle; 1650 mt_entry->missing_count = 0; 1651 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1652 mt_entry->device_info = phy_change->device_info | 1653 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1654 if (sc->is_dpm_enable) { 1655 dpm_idx = et_entry->dpm_entry_num; 1656 if (dpm_idx == MPR_DPM_BAD_IDX) 1657 dpm_idx = _mapping_get_dpm_idx_from_id 1658 (sc, et_entry->enclosure_id, 1659 et_entry->phy_bits); 1660 if (dpm_idx == MPR_DPM_BAD_IDX) { 1661 dpm_idx = _mapping_get_free_dpm_idx(sc); 1662 if (dpm_idx != MPR_DPM_BAD_IDX) { 1663 dpm_entry = 1664 (Mpi2DriverMap0Entry_t *) 1665 ((u8 *) sc->dpm_pg0 + 1666 hdr_sz); 1667 dpm_entry += dpm_idx; 1668 dpm_entry-> 1669 PhysicalIdentifier.Low = 1670 (0xFFFFFFFF & 1671 et_entry->enclosure_id); 1672 dpm_entry-> 1673 PhysicalIdentifier.High = 1674 (et_entry->enclosure_id 1675 >> 32); 1676 dpm_entry->DeviceIndex = 1677 (U16)et_entry->start_index; 1678 dpm_entry->MappingInformation = 1679 et_entry->num_slots; 1680 dpm_entry->MappingInformation 1681 <<= map_shift; 1682 dpm_entry->PhysicalBitsMapping 1683 = et_entry->phy_bits; 1684 et_entry->dpm_entry_num = 1685 dpm_idx; 1686 sc->dpm_entry_used[dpm_idx] = 1; 1687 sc->dpm_flush_entry[dpm_idx] = 1688 1; 1689 phy_change->is_processed = 1; 1690 } else { 1691 phy_change->is_processed = 1; 1692 mpr_dprint(sc, MPR_ERROR | 1693 MPR_MAPPING, "%s: failed " 1694 "to add the device with " 1695 "handle 0x%04x to " 1696 "persistent table because " 1697 "there is no free space " 1698 "available\n", __func__, 1699 phy_change->dev_handle); 1700 } 1701 } else { 1702 et_entry->dpm_entry_num = dpm_idx; 1703 mt_entry->dpm_entry_num = dpm_idx; 1704 } 1705 } 1706 et_entry->init_complete = 1; 1707 } else if ((ioc_pg8_flags & 1708 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1709 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1710 /* 1711 * Get the mapping table index for this device. If it's 1712 * not in the mapping table yet, find a free entry if 1713 * one is available. If there are no free entries, look 1714 * for the entry that has the highest missing count. If 1715 * none of that works to find an entry in the mapping 1716 * table, there is a problem. Log a message and just 1717 * continue on. 1718 */ 1719 map_idx = _mapping_get_mt_idx_from_id 1720 (sc, phy_change->physical_id); 1721 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1722 search_idx = sc->num_rsvd_entries; 1723 if (topo_change->exp_handle) 1724 search_idx += max_num_phy_ids; 1725 map_idx = _mapping_get_free_mt_idx(sc, 1726 search_idx); 1727 } 1728 1729 /* 1730 * If an entry will be used that has a missing device, 1731 * clear its entry from the DPM in the controller. 1732 */ 1733 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1734 map_idx = _mapping_get_high_missing_mt_idx(sc); 1735 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1736 mt_entry = &sc->mapping_table[map_idx]; 1737 _mapping_add_to_removal_table(sc, 1738 mt_entry->dpm_entry_num); 1739 is_removed = 1; 1740 mt_entry->init_complete = 0; 1741 } 1742 } 1743 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1744 mt_entry = &sc->mapping_table[map_idx]; 1745 mt_entry->physical_id = phy_change->physical_id; 1746 mt_entry->id = map_idx; 1747 mt_entry->dev_handle = phy_change->dev_handle; 1748 mt_entry->missing_count = 0; 1749 mt_entry->device_info = phy_change->device_info 1750 | (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1751 } else { 1752 phy_change->is_processed = 1; 1753 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1754 "failed to add the device with handle " 1755 "0x%04x because there is no free space " 1756 "available in the mapping table\n", 1757 __func__, phy_change->dev_handle); 1758 continue; 1759 } 1760 if (sc->is_dpm_enable) { 1761 if (mt_entry->dpm_entry_num != 1762 MPR_DPM_BAD_IDX) { 1763 dpm_idx = mt_entry->dpm_entry_num; 1764 dpm_entry = (Mpi2DriverMap0Entry_t *) 1765 ((u8 *)sc->dpm_pg0 + hdr_sz); 1766 dpm_entry += dpm_idx; 1767 missing_cnt = dpm_entry-> 1768 MappingInformation & 1769 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1770 temp64_var = dpm_entry-> 1771 PhysicalIdentifier.High; 1772 temp64_var = (temp64_var << 32) | 1773 dpm_entry->PhysicalIdentifier.Low; 1774 1775 /* 1776 * If the Mapping Table's info is not 1777 * the same as the DPM entry, clear the 1778 * init_complete flag so that it's 1779 * updated. 1780 */ 1781 if ((mt_entry->physical_id == 1782 temp64_var) && !missing_cnt) 1783 mt_entry->init_complete = 1; 1784 else 1785 mt_entry->init_complete = 0; 1786 } else { 1787 dpm_idx = _mapping_get_free_dpm_idx(sc); 1788 mt_entry->init_complete = 0; 1789 } 1790 if (dpm_idx != MPR_DPM_BAD_IDX && 1791 !mt_entry->init_complete) { 1792 mt_entry->dpm_entry_num = dpm_idx; 1793 dpm_entry = (Mpi2DriverMap0Entry_t *) 1794 ((u8 *)sc->dpm_pg0 + hdr_sz); 1795 dpm_entry += dpm_idx; 1796 dpm_entry->PhysicalIdentifier.Low = 1797 (0xFFFFFFFF & 1798 mt_entry->physical_id); 1799 dpm_entry->PhysicalIdentifier.High = 1800 (mt_entry->physical_id >> 32); 1801 dpm_entry->DeviceIndex = (U16) map_idx; 1802 dpm_entry->MappingInformation = 0; 1803 dpm_entry->PhysicalBitsMapping = 0; 1804 sc->dpm_entry_used[dpm_idx] = 1; 1805 sc->dpm_flush_entry[dpm_idx] = 1; 1806 phy_change->is_processed = 1; 1807 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 1808 phy_change->is_processed = 1; 1809 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1810 "%s: failed to add the device with " 1811 "handle 0x%04x to persistent table " 1812 "because there is no free space " 1813 "available\n", __func__, 1814 phy_change->dev_handle); 1815 } 1816 } 1817 mt_entry->init_complete = 1; 1818 } 1819 1820 phy_change->is_processed = 1; 1821 } 1822 if (is_removed) 1823 _mapping_clear_removed_entries(sc); 1824 } 1825 1826 /** 1827 * _mapping_add_new_pcie_device -Add the new PCIe device into mapping table 1828 * @sc: per adapter object 1829 * @topo_change: Topology change event entry 1830 * 1831 * Search through the PCIe topology change event list and update map table, 1832 * enclosure table and DPM pages for the newly added devices. 1833 * 1834 * Returns nothing 1835 */ 1836 static void 1837 _mapping_add_new_pcie_device(struct mpr_softc *sc, 1838 struct _map_pcie_topology_change *topo_change) 1839 { 1840 u8 enc_idx, missing_cnt, is_removed = 0; 1841 u16 dpm_idx; 1842 u32 search_idx, map_idx; 1843 u32 entry; 1844 struct dev_mapping_table *mt_entry; 1845 struct enc_mapping_table *et_entry; 1846 struct _map_port_change *port_change; 1847 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1848 Mpi2DriverMap0Entry_t *dpm_entry; 1849 uint64_t temp64_var; 1850 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1851 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1852 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1853 1854 for (entry = 0; entry < topo_change->num_entries; entry++) { 1855 port_change = &topo_change->port_details[entry]; 1856 if (port_change->is_processed) 1857 continue; 1858 if (port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED || 1859 !port_change->dev_handle) { 1860 port_change->is_processed = 1; 1861 continue; 1862 } 1863 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1864 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1865 enc_idx = _mapping_get_enc_idx_from_handle 1866 (sc, topo_change->enc_handle); 1867 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1868 port_change->is_processed = 1; 1869 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1870 "failed to add the device with handle " 1871 "0x%04x because enclosure handle 0x%04x " 1872 "is not in the mapping table\n", __func__, 1873 port_change->dev_handle, 1874 topo_change->enc_handle); 1875 continue; 1876 } 1877 1878 /* 1879 * If the enclosure's start_index is BAD here, it means 1880 * that there is no room in the mapping table to cover 1881 * all of the devices that could be in the enclosure. 1882 * There's no reason to process any of the devices for 1883 * this enclosure since they can't be mapped. 1884 */ 1885 et_entry = &sc->enclosure_table[enc_idx]; 1886 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1887 port_change->is_processed = 1; 1888 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1889 "failed to add the device with handle " 1890 "0x%04x because there is no free space " 1891 "available in the mapping table\n", 1892 __func__, port_change->dev_handle); 1893 continue; 1894 } 1895 1896 /* 1897 * Add this device to the mapping table at the correct 1898 * offset where space was found to map the enclosure. 1899 * Then setup the DPM entry information if being used. 1900 */ 1901 map_idx = et_entry->start_index + port_change->slot - 1902 et_entry->start_slot; 1903 mt_entry = &sc->mapping_table[map_idx]; 1904 mt_entry->physical_id = port_change->physical_id; 1905 mt_entry->id = map_idx; 1906 mt_entry->dev_handle = port_change->dev_handle; 1907 mt_entry->missing_count = 0; 1908 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1909 mt_entry->device_info = port_change->device_info | 1910 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1911 if (sc->is_dpm_enable) { 1912 dpm_idx = et_entry->dpm_entry_num; 1913 if (dpm_idx == MPR_DPM_BAD_IDX) 1914 dpm_idx = _mapping_get_dpm_idx_from_id 1915 (sc, et_entry->enclosure_id, 1916 et_entry->phy_bits); 1917 if (dpm_idx == MPR_DPM_BAD_IDX) { 1918 dpm_idx = _mapping_get_free_dpm_idx(sc); 1919 if (dpm_idx != MPR_DPM_BAD_IDX) { 1920 dpm_entry = 1921 (Mpi2DriverMap0Entry_t *) 1922 ((u8 *) sc->dpm_pg0 + 1923 hdr_sz); 1924 dpm_entry += dpm_idx; 1925 dpm_entry-> 1926 PhysicalIdentifier.Low = 1927 (0xFFFFFFFF & 1928 et_entry->enclosure_id); 1929 dpm_entry-> 1930 PhysicalIdentifier.High = 1931 (et_entry->enclosure_id 1932 >> 32); 1933 dpm_entry->DeviceIndex = 1934 (U16)et_entry->start_index; 1935 dpm_entry->MappingInformation = 1936 et_entry->num_slots; 1937 dpm_entry->MappingInformation 1938 <<= map_shift; 1939 dpm_entry->PhysicalBitsMapping 1940 = et_entry->phy_bits; 1941 et_entry->dpm_entry_num = 1942 dpm_idx; 1943 sc->dpm_entry_used[dpm_idx] = 1; 1944 sc->dpm_flush_entry[dpm_idx] = 1945 1; 1946 port_change->is_processed = 1; 1947 } else { 1948 port_change->is_processed = 1; 1949 mpr_dprint(sc, MPR_ERROR | 1950 MPR_MAPPING, "%s: failed " 1951 "to add the device with " 1952 "handle 0x%04x to " 1953 "persistent table because " 1954 "there is no free space " 1955 "available\n", __func__, 1956 port_change->dev_handle); 1957 } 1958 } else { 1959 et_entry->dpm_entry_num = dpm_idx; 1960 mt_entry->dpm_entry_num = dpm_idx; 1961 } 1962 } 1963 et_entry->init_complete = 1; 1964 } else if ((ioc_pg8_flags & 1965 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1966 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1967 /* 1968 * Get the mapping table index for this device. If it's 1969 * not in the mapping table yet, find a free entry if 1970 * one is available. If there are no free entries, look 1971 * for the entry that has the highest missing count. If 1972 * none of that works to find an entry in the mapping 1973 * table, there is a problem. Log a message and just 1974 * continue on. 1975 */ 1976 map_idx = _mapping_get_mt_idx_from_id 1977 (sc, port_change->physical_id); 1978 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1979 search_idx = sc->num_rsvd_entries; 1980 if (topo_change->switch_dev_handle) 1981 search_idx += max_num_phy_ids; 1982 map_idx = _mapping_get_free_mt_idx(sc, 1983 search_idx); 1984 } 1985 1986 /* 1987 * If an entry will be used that has a missing device, 1988 * clear its entry from the DPM in the controller. 1989 */ 1990 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1991 map_idx = _mapping_get_high_missing_mt_idx(sc); 1992 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1993 mt_entry = &sc->mapping_table[map_idx]; 1994 _mapping_add_to_removal_table(sc, 1995 mt_entry->dpm_entry_num); 1996 is_removed = 1; 1997 mt_entry->init_complete = 0; 1998 } 1999 } 2000 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 2001 mt_entry = &sc->mapping_table[map_idx]; 2002 mt_entry->physical_id = 2003 port_change->physical_id; 2004 mt_entry->id = map_idx; 2005 mt_entry->dev_handle = port_change->dev_handle; 2006 mt_entry->missing_count = 0; 2007 mt_entry->device_info = 2008 port_change->device_info | 2009 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 2010 } else { 2011 port_change->is_processed = 1; 2012 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2013 "failed to add the device with handle " 2014 "0x%04x because there is no free space " 2015 "available in the mapping table\n", 2016 __func__, port_change->dev_handle); 2017 continue; 2018 } 2019 if (sc->is_dpm_enable) { 2020 if (mt_entry->dpm_entry_num != 2021 MPR_DPM_BAD_IDX) { 2022 dpm_idx = mt_entry->dpm_entry_num; 2023 dpm_entry = (Mpi2DriverMap0Entry_t *) 2024 ((u8 *)sc->dpm_pg0 + hdr_sz); 2025 dpm_entry += dpm_idx; 2026 missing_cnt = dpm_entry-> 2027 MappingInformation & 2028 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2029 temp64_var = dpm_entry-> 2030 PhysicalIdentifier.High; 2031 temp64_var = (temp64_var << 32) | 2032 dpm_entry->PhysicalIdentifier.Low; 2033 2034 /* 2035 * If the Mapping Table's info is not 2036 * the same as the DPM entry, clear the 2037 * init_complete flag so that it's 2038 * updated. 2039 */ 2040 if ((mt_entry->physical_id == 2041 temp64_var) && !missing_cnt) 2042 mt_entry->init_complete = 1; 2043 else 2044 mt_entry->init_complete = 0; 2045 } else { 2046 dpm_idx = _mapping_get_free_dpm_idx(sc); 2047 mt_entry->init_complete = 0; 2048 } 2049 if (dpm_idx != MPR_DPM_BAD_IDX && 2050 !mt_entry->init_complete) { 2051 mt_entry->dpm_entry_num = dpm_idx; 2052 dpm_entry = (Mpi2DriverMap0Entry_t *) 2053 ((u8 *)sc->dpm_pg0 + hdr_sz); 2054 dpm_entry += dpm_idx; 2055 dpm_entry->PhysicalIdentifier.Low = 2056 (0xFFFFFFFF & 2057 mt_entry->physical_id); 2058 dpm_entry->PhysicalIdentifier.High = 2059 (mt_entry->physical_id >> 32); 2060 dpm_entry->DeviceIndex = (U16) map_idx; 2061 dpm_entry->MappingInformation = 0; 2062 dpm_entry->PhysicalBitsMapping = 0; 2063 sc->dpm_entry_used[dpm_idx] = 1; 2064 sc->dpm_flush_entry[dpm_idx] = 1; 2065 port_change->is_processed = 1; 2066 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 2067 port_change->is_processed = 1; 2068 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2069 "%s: failed to add the device with " 2070 "handle 0x%04x to persistent table " 2071 "because there is no free space " 2072 "available\n", __func__, 2073 port_change->dev_handle); 2074 } 2075 } 2076 mt_entry->init_complete = 1; 2077 } 2078 2079 port_change->is_processed = 1; 2080 } 2081 if (is_removed) 2082 _mapping_clear_removed_entries(sc); 2083 } 2084 2085 /** 2086 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM 2087 * @sc: per adapter object 2088 * 2089 * Returns nothing 2090 */ 2091 static void 2092 _mapping_flush_dpm_pages(struct mpr_softc *sc) 2093 { 2094 Mpi2DriverMap0Entry_t *dpm_entry; 2095 Mpi2ConfigReply_t mpi_reply; 2096 Mpi2DriverMappingPage0_t config_page; 2097 u16 entry_num; 2098 2099 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2100 if (!sc->dpm_flush_entry[entry_num]) 2101 continue; 2102 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 2103 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 2104 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2105 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 2106 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2107 dpm_entry += entry_num; 2108 dpm_entry->MappingInformation = htole16(dpm_entry-> 2109 MappingInformation); 2110 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex); 2111 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry-> 2112 PhysicalBitsMapping); 2113 memcpy(&config_page.Entry, (u8 *)dpm_entry, 2114 sizeof(Mpi2DriverMap0Entry_t)); 2115 /* TODO-How to handle failed writes? */ 2116 mpr_dprint(sc, MPR_MAPPING, "%s: Flushing DPM entry %d.\n", 2117 __func__, entry_num); 2118 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 2119 entry_num)) { 2120 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Flush of " 2121 "DPM entry %d for device failed\n", __func__, 2122 entry_num); 2123 } else 2124 sc->dpm_flush_entry[entry_num] = 0; 2125 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2126 MappingInformation); 2127 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 2128 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry-> 2129 PhysicalBitsMapping); 2130 } 2131 } 2132 2133 /** 2134 * _mapping_allocate_memory- allocates the memory required for mapping tables 2135 * @sc: per adapter object 2136 * 2137 * Allocates the memory for all the tables required for host mapping 2138 * 2139 * Return 0 on success or non-zero on failure. 2140 */ 2141 int 2142 mpr_mapping_allocate_memory(struct mpr_softc *sc) 2143 { 2144 uint32_t dpm_pg0_sz; 2145 2146 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) * 2147 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2148 if (!sc->mapping_table) 2149 goto free_resources; 2150 2151 sc->removal_table = malloc((sizeof(struct map_removal_table) * 2152 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2153 if (!sc->removal_table) 2154 goto free_resources; 2155 2156 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) * 2157 sc->max_enclosures), M_MPR, M_ZERO|M_NOWAIT); 2158 if (!sc->enclosure_table) 2159 goto free_resources; 2160 2161 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries), 2162 M_MPR, M_ZERO|M_NOWAIT); 2163 if (!sc->dpm_entry_used) 2164 goto free_resources; 2165 2166 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries), 2167 M_MPR, M_ZERO|M_NOWAIT); 2168 if (!sc->dpm_flush_entry) 2169 goto free_resources; 2170 2171 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2172 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2173 2174 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPR, M_ZERO|M_NOWAIT); 2175 if (!sc->dpm_pg0) { 2176 printf("%s: memory alloc failed for dpm page; disabling dpm\n", 2177 __func__); 2178 sc->is_dpm_enable = 0; 2179 } 2180 2181 return 0; 2182 2183 free_resources: 2184 free(sc->mapping_table, M_MPR); 2185 free(sc->removal_table, M_MPR); 2186 free(sc->enclosure_table, M_MPR); 2187 free(sc->dpm_entry_used, M_MPR); 2188 free(sc->dpm_flush_entry, M_MPR); 2189 free(sc->dpm_pg0, M_MPR); 2190 printf("%s: device initialization failed due to failure in mapping " 2191 "table memory allocation\n", __func__); 2192 return -1; 2193 } 2194 2195 /** 2196 * mpr_mapping_free_memory- frees the memory allocated for mapping tables 2197 * @sc: per adapter object 2198 * 2199 * Returns nothing. 2200 */ 2201 void 2202 mpr_mapping_free_memory(struct mpr_softc *sc) 2203 { 2204 free(sc->mapping_table, M_MPR); 2205 free(sc->removal_table, M_MPR); 2206 free(sc->enclosure_table, M_MPR); 2207 free(sc->dpm_entry_used, M_MPR); 2208 free(sc->dpm_flush_entry, M_MPR); 2209 free(sc->dpm_pg0, M_MPR); 2210 } 2211 2212 static void 2213 _mapping_process_dpm_pg0(struct mpr_softc *sc) 2214 { 2215 u8 missing_cnt, enc_idx; 2216 u16 slot_id, entry_num, num_slots; 2217 u32 map_idx, dev_idx, start_idx, end_idx; 2218 struct dev_mapping_table *mt_entry; 2219 Mpi2DriverMap0Entry_t *dpm_entry; 2220 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2221 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 2222 struct enc_mapping_table *et_entry; 2223 u64 physical_id; 2224 u32 phy_bits = 0; 2225 2226 /* 2227 * start_idx and end_idx are only used for IR. 2228 */ 2229 if (sc->ir_firmware) 2230 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2231 2232 /* 2233 * Look through all of the DPM entries that were read from the 2234 * controller and copy them over to the driver's internal table if they 2235 * have a non-zero ID. At this point, any ID with a value of 0 would be 2236 * invalid, so don't copy it. 2237 */ 2238 mpr_dprint(sc, MPR_MAPPING, "%s: Start copy of %d DPM entries into the " 2239 "mapping table.\n", __func__, sc->max_dpm_entries); 2240 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2241 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2242 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 2243 dpm_entry++) { 2244 physical_id = dpm_entry->PhysicalIdentifier.High; 2245 physical_id = (physical_id << 32) | 2246 dpm_entry->PhysicalIdentifier.Low; 2247 if (!physical_id) { 2248 sc->dpm_entry_used[entry_num] = 0; 2249 continue; 2250 } 2251 sc->dpm_entry_used[entry_num] = 1; 2252 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2253 MappingInformation); 2254 missing_cnt = dpm_entry->MappingInformation & 2255 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2256 dev_idx = le16toh(dpm_entry->DeviceIndex); 2257 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping); 2258 2259 /* 2260 * Volumes are at special locations in the mapping table so 2261 * account for that. Volume mapping table entries do not depend 2262 * on the type of mapping, so continue the loop after adding 2263 * volumes to the mapping table. 2264 */ 2265 if (sc->ir_firmware && (dev_idx >= start_idx) && 2266 (dev_idx <= end_idx)) { 2267 mt_entry = &sc->mapping_table[dev_idx]; 2268 mt_entry->physical_id = 2269 dpm_entry->PhysicalIdentifier.High; 2270 mt_entry->physical_id = (mt_entry->physical_id << 32) | 2271 dpm_entry->PhysicalIdentifier.Low; 2272 mt_entry->id = dev_idx; 2273 mt_entry->missing_count = missing_cnt; 2274 mt_entry->dpm_entry_num = entry_num; 2275 mt_entry->device_info = MPR_DEV_RESERVED; 2276 continue; 2277 } 2278 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2279 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2280 /* 2281 * The dev_idx for an enclosure is the start index. If 2282 * the start index is within the controller's default 2283 * enclosure area, set the number of slots for this 2284 * enclosure to the max allowed. Otherwise, it should be 2285 * a normal enclosure and the number of slots is in the 2286 * DPM entry's Mapping Information. 2287 */ 2288 if (dev_idx < (sc->num_rsvd_entries + 2289 max_num_phy_ids)) { 2290 slot_id = 0; 2291 if (ioc_pg8_flags & 2292 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1) 2293 slot_id = 1; 2294 num_slots = max_num_phy_ids; 2295 } else { 2296 slot_id = 0; 2297 num_slots = dpm_entry->MappingInformation & 2298 MPI2_DRVMAP0_MAPINFO_SLOT_MASK; 2299 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2300 } 2301 enc_idx = sc->num_enc_table_entries; 2302 if (enc_idx >= sc->max_enclosures) { 2303 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2304 "Number of enclosure entries in DPM exceed " 2305 "the max allowed of %d.\n", __func__, 2306 sc->max_enclosures); 2307 break; 2308 } 2309 sc->num_enc_table_entries++; 2310 et_entry = &sc->enclosure_table[enc_idx]; 2311 physical_id = dpm_entry->PhysicalIdentifier.High; 2312 et_entry->enclosure_id = (physical_id << 32) | 2313 dpm_entry->PhysicalIdentifier.Low; 2314 et_entry->start_index = dev_idx; 2315 et_entry->dpm_entry_num = entry_num; 2316 et_entry->num_slots = num_slots; 2317 et_entry->start_slot = slot_id; 2318 et_entry->missing_count = missing_cnt; 2319 et_entry->phy_bits = phy_bits; 2320 2321 /* 2322 * Initialize all entries for this enclosure in the 2323 * mapping table and mark them as reserved. The actual 2324 * devices have not been processed yet but when they are 2325 * they will use these entries. If an entry is found 2326 * that already has a valid DPM index, the mapping table 2327 * is corrupt. This can happen if the mapping type is 2328 * changed without clearing all of the DPM entries in 2329 * the controller. 2330 */ 2331 mt_entry = &sc->mapping_table[dev_idx]; 2332 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots); 2333 map_idx++, mt_entry++) { 2334 if (mt_entry->dpm_entry_num != 2335 MPR_DPM_BAD_IDX) { 2336 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2337 "%s: Conflict in mapping table for " 2338 "enclosure %d device %d\n", 2339 __func__, enc_idx, map_idx); 2340 goto fail; 2341 } 2342 physical_id = 2343 dpm_entry->PhysicalIdentifier.High; 2344 mt_entry->physical_id = (physical_id << 32) | 2345 dpm_entry->PhysicalIdentifier.Low; 2346 mt_entry->phy_bits = phy_bits; 2347 mt_entry->id = dev_idx; 2348 mt_entry->dpm_entry_num = entry_num; 2349 mt_entry->missing_count = missing_cnt; 2350 mt_entry->device_info = MPR_DEV_RESERVED; 2351 } 2352 } else if ((ioc_pg8_flags & 2353 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2354 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2355 /* 2356 * Device mapping, so simply copy the DPM entries to the 2357 * mapping table, but check for a corrupt mapping table 2358 * (as described above in Enc/Slot mapping). 2359 */ 2360 map_idx = dev_idx; 2361 mt_entry = &sc->mapping_table[map_idx]; 2362 if (mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2363 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2364 "Conflict in mapping table for device %d\n", 2365 __func__, map_idx); 2366 goto fail; 2367 } 2368 physical_id = dpm_entry->PhysicalIdentifier.High; 2369 mt_entry->physical_id = (physical_id << 32) | 2370 dpm_entry->PhysicalIdentifier.Low; 2371 mt_entry->phy_bits = phy_bits; 2372 mt_entry->id = dev_idx; 2373 mt_entry->missing_count = missing_cnt; 2374 mt_entry->dpm_entry_num = entry_num; 2375 mt_entry->device_info = MPR_DEV_RESERVED; 2376 } 2377 } /*close the loop for DPM table */ 2378 return; 2379 2380 fail: 2381 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2382 "Wiping DPM to start from scratch\n", __func__); 2383 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2384 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2385 bzero(dpm_entry, sizeof(Mpi2DriverMap0Entry_t) * sc->max_dpm_entries); 2386 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2387 sc->dpm_flush_entry[entry_num] = 1; 2388 sc->dpm_entry_used[entry_num] = 0; 2389 /* 2390 * for IR firmware, it may be necessary to wipe out 2391 * sc->mapping_table volumes tooi 2392 */ 2393 } 2394 _mapping_flush_dpm_pages(sc); 2395 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) 2396 _mapping_clear_enc_entry(sc->enclosure_table + enc_idx); 2397 sc->num_enc_table_entries = 0; 2398 } 2399 2400 /* 2401 * mpr_mapping_check_devices - start of the day check for device availabilty 2402 * @sc: per adapter object 2403 * 2404 * Returns nothing. 2405 */ 2406 void 2407 mpr_mapping_check_devices(void *data) 2408 { 2409 u32 i; 2410 struct dev_mapping_table *mt_entry; 2411 struct mpr_softc *sc = (struct mpr_softc *)data; 2412 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2413 struct enc_mapping_table *et_entry; 2414 u32 start_idx = 0, end_idx = 0; 2415 u8 stop_device_checks = 0; 2416 2417 MPR_FUNCTRACE(sc); 2418 2419 /* 2420 * Clear this flag so that this function is never called again except 2421 * within this function if the check needs to be done again. The 2422 * purpose is to check for missing devices that are currently in the 2423 * mapping table so do this only at driver init after discovery. 2424 */ 2425 sc->track_mapping_events = 0; 2426 2427 /* 2428 * callout synchronization 2429 * This is used to prevent race conditions for the callout. 2430 */ 2431 mpr_dprint(sc, MPR_MAPPING, "%s: Start check for missing devices.\n", 2432 __func__); 2433 mtx_assert(&sc->mpr_mtx, MA_OWNED); 2434 if ((callout_pending(&sc->device_check_callout)) || 2435 (!callout_active(&sc->device_check_callout))) { 2436 mpr_dprint(sc, MPR_MAPPING, "%s: Device Check Callout is " 2437 "already pending or not active.\n", __func__); 2438 return; 2439 } 2440 callout_deactivate(&sc->device_check_callout); 2441 2442 /* 2443 * Use callout to check if any devices in the mapping table have been 2444 * processed yet. If ALL devices are marked as not init_complete, no 2445 * devices have been processed and mapped. Until devices are mapped 2446 * there's no reason to mark them as missing. Continue resetting this 2447 * callout until devices have been mapped. 2448 */ 2449 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2450 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2451 et_entry = sc->enclosure_table; 2452 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2453 if (et_entry->init_complete) { 2454 stop_device_checks = 1; 2455 break; 2456 } 2457 } 2458 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2459 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2460 mt_entry = sc->mapping_table; 2461 for (i = 0; i < sc->max_devices; i++, mt_entry++) { 2462 if (mt_entry->init_complete) { 2463 stop_device_checks = 1; 2464 break; 2465 } 2466 } 2467 } 2468 2469 /* 2470 * Setup another callout check after a delay. Keep doing this until 2471 * devices are mapped. 2472 */ 2473 if (!stop_device_checks) { 2474 mpr_dprint(sc, MPR_MAPPING, "%s: No devices have been mapped. " 2475 "Reset callout to check again after a %d second delay.\n", 2476 __func__, MPR_MISSING_CHECK_DELAY); 2477 callout_reset(&sc->device_check_callout, 2478 MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices, 2479 sc); 2480 return; 2481 } 2482 mpr_dprint(sc, MPR_MAPPING, "%s: Device check complete.\n", __func__); 2483 2484 /* 2485 * Depending on the mapping type, check if devices have been processed 2486 * and update their missing counts if not processed. 2487 */ 2488 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2489 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2490 et_entry = sc->enclosure_table; 2491 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2492 if (!et_entry->init_complete) { 2493 if (et_entry->missing_count < 2494 MPR_MAX_MISSING_COUNT) { 2495 mpr_dprint(sc, MPR_MAPPING, "%s: " 2496 "Enclosure %d is missing from the " 2497 "topology. Update its missing " 2498 "count.\n", __func__, i); 2499 et_entry->missing_count++; 2500 if (et_entry->dpm_entry_num != 2501 MPR_DPM_BAD_IDX) { 2502 _mapping_commit_enc_entry(sc, 2503 et_entry); 2504 } 2505 } 2506 et_entry->init_complete = 1; 2507 } 2508 } 2509 if (!sc->ir_firmware) 2510 return; 2511 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2512 mt_entry = &sc->mapping_table[start_idx]; 2513 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2514 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2515 start_idx = 0; 2516 end_idx = sc->max_devices - 1; 2517 mt_entry = sc->mapping_table; 2518 } 2519 2520 /* 2521 * The start and end indices have been set above according to the 2522 * mapping type. Go through these mappings and update any entries that 2523 * do not have the init_complete flag set, which means they are missing. 2524 */ 2525 if (end_idx == 0) 2526 return; 2527 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) { 2528 if (mt_entry->device_info & MPR_DEV_RESERVED 2529 && !mt_entry->physical_id) 2530 mt_entry->init_complete = 1; 2531 else if (mt_entry->device_info & MPR_DEV_RESERVED) { 2532 if (!mt_entry->init_complete) { 2533 mpr_dprint(sc, MPR_MAPPING, "%s: Device in " 2534 "mapping table at index %d is missing from " 2535 "topology. Update its missing count.\n", 2536 __func__, i); 2537 if (mt_entry->missing_count < 2538 MPR_MAX_MISSING_COUNT) { 2539 mt_entry->missing_count++; 2540 if (mt_entry->dpm_entry_num != 2541 MPR_DPM_BAD_IDX) { 2542 _mapping_commit_map_entry(sc, 2543 mt_entry); 2544 } 2545 } 2546 mt_entry->init_complete = 1; 2547 } 2548 } 2549 } 2550 } 2551 2552 /** 2553 * mpr_mapping_initialize - initialize mapping tables 2554 * @sc: per adapter object 2555 * 2556 * Read controller persitant mapping tables into internal data area. 2557 * 2558 * Return 0 for success or non-zero for failure. 2559 */ 2560 int 2561 mpr_mapping_initialize(struct mpr_softc *sc) 2562 { 2563 uint16_t volume_mapping_flags, dpm_pg0_sz; 2564 uint32_t i; 2565 Mpi2ConfigReply_t mpi_reply; 2566 int error; 2567 uint8_t retry_count; 2568 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2569 2570 /* The additional 1 accounts for the virtual enclosure 2571 * created for the controller 2572 */ 2573 sc->max_enclosures = sc->facts->MaxEnclosures + 1; 2574 sc->max_expanders = sc->facts->MaxSasExpanders; 2575 sc->max_volumes = sc->facts->MaxVolumes; 2576 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes; 2577 sc->pending_map_events = 0; 2578 sc->num_enc_table_entries = 0; 2579 sc->num_rsvd_entries = 0; 2580 sc->max_dpm_entries = le16toh(sc->ioc_pg8.MaxPersistentEntries); 2581 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0; 2582 sc->track_mapping_events = 0; 2583 2584 mpr_dprint(sc, MPR_MAPPING, "%s: Mapping table has a max of %d entries " 2585 "and DPM has a max of %d entries.\n", __func__, sc->max_devices, 2586 sc->max_dpm_entries); 2587 2588 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING) 2589 sc->is_dpm_enable = 0; 2590 2591 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 2592 sc->num_rsvd_entries = 1; 2593 2594 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 2595 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 2596 if (sc->ir_firmware && (volume_mapping_flags == 2597 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)) 2598 sc->num_rsvd_entries += sc->max_volumes; 2599 2600 error = mpr_mapping_allocate_memory(sc); 2601 if (error) 2602 return (error); 2603 2604 for (i = 0; i < sc->max_devices; i++) 2605 _mapping_clear_map_entry(sc->mapping_table + i); 2606 2607 for (i = 0; i < sc->max_enclosures; i++) 2608 _mapping_clear_enc_entry(sc->enclosure_table + i); 2609 2610 for (i = 0; i < sc->max_devices; i++) { 2611 sc->removal_table[i].dev_handle = 0; 2612 sc->removal_table[i].dpm_entry_num = MPR_DPM_BAD_IDX; 2613 } 2614 2615 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries); 2616 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries); 2617 2618 if (sc->is_dpm_enable) { 2619 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2620 (sc->max_dpm_entries * 2621 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2622 retry_count = 0; 2623 2624 retry_read_dpm: 2625 if (mpr_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0, 2626 dpm_pg0_sz)) { 2627 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: DPM page " 2628 "read failed.\n", __func__); 2629 if (retry_count < 3) { 2630 retry_count++; 2631 goto retry_read_dpm; 2632 } 2633 sc->is_dpm_enable = 0; 2634 } 2635 } 2636 2637 if (sc->is_dpm_enable) 2638 _mapping_process_dpm_pg0(sc); 2639 if (! sc->is_dpm_enable) { 2640 mpr_dprint(sc, MPR_MAPPING, "%s: DPM processing is disabled. " 2641 "Device mappings will not persist across reboots or " 2642 "resets.\n", __func__); 2643 } 2644 2645 sc->track_mapping_events = 1; 2646 return 0; 2647 } 2648 2649 /** 2650 * mpr_mapping_exit - clear mapping table and associated memory 2651 * @sc: per adapter object 2652 * 2653 * Returns nothing. 2654 */ 2655 void 2656 mpr_mapping_exit(struct mpr_softc *sc) 2657 { 2658 _mapping_flush_dpm_pages(sc); 2659 mpr_mapping_free_memory(sc); 2660 } 2661 2662 /** 2663 * mpr_mapping_get_tid - return the target id for sas device and handle 2664 * @sc: per adapter object 2665 * @sas_address: sas address of the device 2666 * @handle: device handle 2667 * 2668 * Returns valid target ID on success or BAD_ID. 2669 */ 2670 unsigned int 2671 mpr_mapping_get_tid(struct mpr_softc *sc, uint64_t sas_address, u16 handle) 2672 { 2673 u32 map_idx; 2674 struct dev_mapping_table *mt_entry; 2675 2676 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 2677 mt_entry = &sc->mapping_table[map_idx]; 2678 if (mt_entry->dev_handle == handle && mt_entry->physical_id == 2679 sas_address) 2680 return mt_entry->id; 2681 } 2682 2683 return MPR_MAP_BAD_ID; 2684 } 2685 2686 /** 2687 * mpr_mapping_get_tid_from_handle - find a target id in mapping table using 2688 * only the dev handle. This is just a wrapper function for the local function 2689 * _mapping_get_mt_idx_from_handle. 2690 * @sc: per adapter object 2691 * @handle: device handle 2692 * 2693 * Returns valid target ID on success or BAD_ID. 2694 */ 2695 unsigned int 2696 mpr_mapping_get_tid_from_handle(struct mpr_softc *sc, u16 handle) 2697 { 2698 return (_mapping_get_mt_idx_from_handle(sc, handle)); 2699 } 2700 2701 /** 2702 * mpr_mapping_get_raid_tid - return the target id for raid device 2703 * @sc: per adapter object 2704 * @wwid: world wide identifier for raid volume 2705 * @volHandle: volume device handle 2706 * 2707 * Returns valid target ID on success or BAD_ID. 2708 */ 2709 unsigned int 2710 mpr_mapping_get_raid_tid(struct mpr_softc *sc, u64 wwid, u16 volHandle) 2711 { 2712 u32 start_idx, end_idx, map_idx; 2713 struct dev_mapping_table *mt_entry; 2714 2715 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2716 mt_entry = &sc->mapping_table[start_idx]; 2717 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 2718 if (mt_entry->dev_handle == volHandle && 2719 mt_entry->physical_id == wwid) 2720 return mt_entry->id; 2721 } 2722 2723 return MPR_MAP_BAD_ID; 2724 } 2725 2726 /** 2727 * mpr_mapping_get_raid_tid_from_handle - find raid device in mapping table 2728 * using only the volume dev handle. This is just a wrapper function for the 2729 * local function _mapping_get_ir_mt_idx_from_handle. 2730 * @sc: per adapter object 2731 * @volHandle: volume device handle 2732 * 2733 * Returns valid target ID on success or BAD_ID. 2734 */ 2735 unsigned int 2736 mpr_mapping_get_raid_tid_from_handle(struct mpr_softc *sc, u16 volHandle) 2737 { 2738 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle)); 2739 } 2740 2741 /** 2742 * mpr_mapping_enclosure_dev_status_change_event - handle enclosure events 2743 * @sc: per adapter object 2744 * @event_data: event data payload 2745 * 2746 * Return nothing. 2747 */ 2748 void 2749 mpr_mapping_enclosure_dev_status_change_event(struct mpr_softc *sc, 2750 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 2751 { 2752 u8 enc_idx, missing_count; 2753 struct enc_mapping_table *et_entry; 2754 Mpi2DriverMap0Entry_t *dpm_entry; 2755 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2756 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2757 u8 update_phy_bits = 0; 2758 u32 saved_phy_bits; 2759 uint64_t temp64_var; 2760 2761 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) != 2762 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) 2763 goto out; 2764 2765 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 2766 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2767 2768 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) { 2769 if (!event_data->NumSlots) { 2770 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure " 2771 "with handle = 0x%x reported 0 slots.\n", __func__, 2772 le16toh(event_data->EnclosureHandle)); 2773 goto out; 2774 } 2775 temp64_var = event_data->EnclosureLogicalID.High; 2776 temp64_var = (temp64_var << 32) | 2777 event_data->EnclosureLogicalID.Low; 2778 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var, 2779 event_data->PhyBits); 2780 2781 /* 2782 * If the Added enclosure is already in the Enclosure Table, 2783 * make sure that all the the enclosure info is up to date. If 2784 * the enclosure was missing and has just been added back, or if 2785 * the enclosure's Phy Bits have changed, clear the missing 2786 * count and update the Phy Bits in the mapping table and in the 2787 * DPM, if it's being used. 2788 */ 2789 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2790 et_entry = &sc->enclosure_table[enc_idx]; 2791 if (et_entry->init_complete && 2792 !et_entry->missing_count) { 2793 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d " 2794 "is already present with handle = 0x%x\n", 2795 __func__, enc_idx, et_entry->enc_handle); 2796 goto out; 2797 } 2798 et_entry->enc_handle = le16toh(event_data-> 2799 EnclosureHandle); 2800 et_entry->start_slot = le16toh(event_data->StartSlot); 2801 saved_phy_bits = et_entry->phy_bits; 2802 et_entry->phy_bits |= le32toh(event_data->PhyBits); 2803 if (saved_phy_bits != et_entry->phy_bits) 2804 update_phy_bits = 1; 2805 if (et_entry->missing_count || update_phy_bits) { 2806 et_entry->missing_count = 0; 2807 if (sc->is_dpm_enable && 2808 et_entry->dpm_entry_num != 2809 MPR_DPM_BAD_IDX) { 2810 dpm_entry += et_entry->dpm_entry_num; 2811 missing_count = 2812 (u8)(dpm_entry->MappingInformation & 2813 MPI2_DRVMAP0_MAPINFO_MISSING_MASK); 2814 if (missing_count || update_phy_bits) { 2815 dpm_entry->MappingInformation 2816 = et_entry->num_slots; 2817 dpm_entry->MappingInformation 2818 <<= map_shift; 2819 dpm_entry->PhysicalBitsMapping 2820 = et_entry->phy_bits; 2821 sc->dpm_flush_entry[et_entry-> 2822 dpm_entry_num] = 1; 2823 } 2824 } 2825 } 2826 } else { 2827 /* 2828 * This is a new enclosure that is being added. 2829 * Initialize the Enclosure Table entry. It will be 2830 * finalized when a device is added for the enclosure 2831 * and the enclosure has enough space in the Mapping 2832 * Table to map its devices. 2833 */ 2834 if (sc->num_enc_table_entries < sc->max_enclosures) { 2835 enc_idx = sc->num_enc_table_entries; 2836 sc->num_enc_table_entries++; 2837 } else { 2838 enc_idx = _mapping_get_high_missing_et_idx(sc); 2839 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2840 et_entry = &sc->enclosure_table[enc_idx]; 2841 _mapping_add_to_removal_table(sc, 2842 et_entry->dpm_entry_num); 2843 _mapping_clear_enc_entry(et_entry); 2844 } 2845 } 2846 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2847 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2848 "Enclosure cannot be added to mapping " 2849 "table because it's full.\n", __func__); 2850 goto out; 2851 } 2852 et_entry = &sc->enclosure_table[enc_idx]; 2853 et_entry->enc_handle = le16toh(event_data-> 2854 EnclosureHandle); 2855 et_entry->enclosure_id = le64toh(event_data-> 2856 EnclosureLogicalID.High); 2857 et_entry->enclosure_id = 2858 ((et_entry->enclosure_id << 32) | 2859 le64toh(event_data->EnclosureLogicalID.Low)); 2860 et_entry->start_index = MPR_MAPTABLE_BAD_IDX; 2861 et_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 2862 et_entry->num_slots = le16toh(event_data->NumSlots); 2863 et_entry->start_slot = le16toh(event_data->StartSlot); 2864 et_entry->phy_bits = le32toh(event_data->PhyBits); 2865 } 2866 et_entry->init_complete = 1; 2867 } else if (event_data->ReasonCode == 2868 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) { 2869 /* 2870 * An enclosure was removed. Update its missing count and then 2871 * update the DPM entry with the new missing count for the 2872 * enclosure. 2873 */ 2874 enc_idx = _mapping_get_enc_idx_from_handle(sc, 2875 le16toh(event_data->EnclosureHandle)); 2876 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2877 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Cannot " 2878 "unmap enclosure with handle 0x%04x because it " 2879 "has already been deleted.\n", __func__, 2880 le16toh(event_data->EnclosureHandle)); 2881 goto out; 2882 } 2883 et_entry = &sc->enclosure_table[enc_idx]; 2884 if (et_entry->missing_count < MPR_MAX_MISSING_COUNT) 2885 et_entry->missing_count++; 2886 if (sc->is_dpm_enable && 2887 et_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2888 dpm_entry += et_entry->dpm_entry_num; 2889 dpm_entry->MappingInformation = et_entry->num_slots; 2890 dpm_entry->MappingInformation <<= map_shift; 2891 dpm_entry->MappingInformation |= 2892 et_entry->missing_count; 2893 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1; 2894 } 2895 et_entry->init_complete = 1; 2896 } 2897 2898 out: 2899 _mapping_flush_dpm_pages(sc); 2900 if (sc->pending_map_events) 2901 sc->pending_map_events--; 2902 } 2903 2904 /** 2905 * mpr_mapping_topology_change_event - handle topology change events 2906 * @sc: per adapter object 2907 * @event_data: event data payload 2908 * 2909 * Returns nothing. 2910 */ 2911 void 2912 mpr_mapping_topology_change_event(struct mpr_softc *sc, 2913 Mpi2EventDataSasTopologyChangeList_t *event_data) 2914 { 2915 struct _map_topology_change topo_change; 2916 struct _map_phy_change *phy_change; 2917 Mpi2EventSasTopoPhyEntry_t *event_phy_change; 2918 u8 i, num_entries; 2919 2920 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2921 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle); 2922 num_entries = event_data->NumEntries; 2923 topo_change.num_entries = num_entries; 2924 topo_change.start_phy_num = event_data->StartPhyNum; 2925 topo_change.num_phys = event_data->NumPhys; 2926 topo_change.exp_status = event_data->ExpStatus; 2927 event_phy_change = event_data->PHY; 2928 topo_change.phy_details = NULL; 2929 2930 if (!num_entries) 2931 goto out; 2932 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries, 2933 M_MPR, M_NOWAIT|M_ZERO); 2934 topo_change.phy_details = phy_change; 2935 if (!phy_change) 2936 goto out; 2937 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) { 2938 phy_change->dev_handle = le16toh(event_phy_change-> 2939 AttachedDevHandle); 2940 phy_change->reason = event_phy_change->PhyStatus & 2941 MPI2_EVENT_SAS_TOPO_RC_MASK; 2942 } 2943 _mapping_update_missing_count(sc, &topo_change); 2944 _mapping_get_dev_info(sc, &topo_change); 2945 _mapping_clear_removed_entries(sc); 2946 _mapping_add_new_device(sc, &topo_change); 2947 2948 out: 2949 free(topo_change.phy_details, M_MPR); 2950 _mapping_flush_dpm_pages(sc); 2951 if (sc->pending_map_events) 2952 sc->pending_map_events--; 2953 } 2954 2955 /** 2956 * mpr_mapping_pcie_topology_change_event - handle PCIe topology change events 2957 * @sc: per adapter object 2958 * @event_data: event data payload 2959 * 2960 * Returns nothing. 2961 */ 2962 void 2963 mpr_mapping_pcie_topology_change_event(struct mpr_softc *sc, 2964 Mpi26EventDataPCIeTopologyChangeList_t *event_data) 2965 { 2966 struct _map_pcie_topology_change topo_change; 2967 struct _map_port_change *port_change; 2968 Mpi26EventPCIeTopoPortEntry_t *event_port_change; 2969 u8 i, num_entries; 2970 2971 topo_change.switch_dev_handle = le16toh(event_data->SwitchDevHandle); 2972 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2973 num_entries = event_data->NumEntries; 2974 topo_change.num_entries = num_entries; 2975 topo_change.start_port_num = event_data->StartPortNum; 2976 topo_change.num_ports = event_data->NumPorts; 2977 topo_change.switch_status = event_data->SwitchStatus; 2978 event_port_change = event_data->PortEntry; 2979 topo_change.port_details = NULL; 2980 2981 if (!num_entries) 2982 goto out; 2983 port_change = malloc(sizeof(struct _map_port_change) * num_entries, 2984 M_MPR, M_NOWAIT|M_ZERO); 2985 topo_change.port_details = port_change; 2986 if (!port_change) 2987 goto out; 2988 for (i = 0; i < num_entries; i++, event_port_change++, port_change++) { 2989 port_change->dev_handle = le16toh(event_port_change-> 2990 AttachedDevHandle); 2991 port_change->reason = event_port_change->PortStatus; 2992 } 2993 _mapping_update_pcie_missing_count(sc, &topo_change); 2994 _mapping_get_pcie_dev_info(sc, &topo_change); 2995 _mapping_clear_removed_entries(sc); 2996 _mapping_add_new_pcie_device(sc, &topo_change); 2997 2998 out: 2999 free(topo_change.port_details, M_MPR); 3000 _mapping_flush_dpm_pages(sc); 3001 if (sc->pending_map_events) 3002 sc->pending_map_events--; 3003 } 3004 3005 /** 3006 * mpr_mapping_ir_config_change_event - handle IR config change list events 3007 * @sc: per adapter object 3008 * @event_data: event data payload 3009 * 3010 * Returns nothing. 3011 */ 3012 void 3013 mpr_mapping_ir_config_change_event(struct mpr_softc *sc, 3014 Mpi2EventDataIrConfigChangeList_t *event_data) 3015 { 3016 Mpi2EventIrConfigElement_t *element; 3017 int i; 3018 u64 *wwid_table; 3019 u32 map_idx, flags; 3020 struct dev_mapping_table *mt_entry; 3021 u16 element_flags; 3022 3023 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPR, 3024 M_NOWAIT | M_ZERO); 3025 if (!wwid_table) 3026 goto out; 3027 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3028 flags = le32toh(event_data->Flags); 3029 3030 /* 3031 * For volume changes, get the WWID for the volume and put it in a 3032 * table to be used in the processing of the IR change event. 3033 */ 3034 for (i = 0; i < event_data->NumElements; i++, element++) { 3035 element_flags = le16toh(element->ElementFlags); 3036 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) && 3037 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) && 3038 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE) 3039 && (element->ReasonCode != 3040 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) 3041 continue; 3042 if ((element_flags & 3043 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) == 3044 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) { 3045 mpr_config_get_volume_wwid(sc, 3046 le16toh(element->VolDevHandle), &wwid_table[i]); 3047 } 3048 } 3049 3050 /* 3051 * Check the ReasonCode for each element in the IR event and Add/Remove 3052 * Volumes or Physical Disks of Volumes to/from the mapping table. Use 3053 * the WWIDs gotten above in wwid_table. 3054 */ 3055 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3056 goto out; 3057 else { 3058 element = (Mpi2EventIrConfigElement_t *)&event_data-> 3059 ConfigElement[0]; 3060 for (i = 0; i < event_data->NumElements; i++, element++) { 3061 if (element->ReasonCode == 3062 MPI2_EVENT_IR_CHANGE_RC_ADDED || 3063 element->ReasonCode == 3064 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) { 3065 map_idx = _mapping_get_ir_mt_idx_from_wwid 3066 (sc, wwid_table[i]); 3067 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 3068 /* 3069 * The volume is already in the mapping 3070 * table. Just update it's info. 3071 */ 3072 mt_entry = &sc->mapping_table[map_idx]; 3073 mt_entry->id = map_idx; 3074 mt_entry->dev_handle = le16toh 3075 (element->VolDevHandle); 3076 mt_entry->device_info = 3077 MPR_DEV_RESERVED | MPR_MAP_IN_USE; 3078 _mapping_update_ir_missing_cnt(sc, 3079 map_idx, element, wwid_table[i]); 3080 continue; 3081 } 3082 3083 /* 3084 * Volume is not in mapping table yet. Find a 3085 * free entry in the mapping table at the 3086 * volume mapping locations. If no entries are 3087 * available, this is an error because it means 3088 * there are more volumes than can be mapped 3089 * and that should never happen for volumes. 3090 */ 3091 map_idx = _mapping_get_free_ir_mt_idx(sc); 3092 if (map_idx == MPR_MAPTABLE_BAD_IDX) 3093 { 3094 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 3095 "%s: failed to add the volume with " 3096 "handle 0x%04x because there is no " 3097 "free space available in the " 3098 "mapping table\n", __func__, 3099 le16toh(element->VolDevHandle)); 3100 continue; 3101 } 3102 mt_entry = &sc->mapping_table[map_idx]; 3103 mt_entry->physical_id = wwid_table[i]; 3104 mt_entry->id = map_idx; 3105 mt_entry->dev_handle = le16toh(element-> 3106 VolDevHandle); 3107 mt_entry->device_info = MPR_DEV_RESERVED | 3108 MPR_MAP_IN_USE; 3109 _mapping_update_ir_missing_cnt(sc, map_idx, 3110 element, wwid_table[i]); 3111 } else if (element->ReasonCode == 3112 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 3113 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc, 3114 wwid_table[i]); 3115 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3116 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3117 "to remove a volume because it has " 3118 "already been removed.\n", 3119 __func__); 3120 continue; 3121 } 3122 _mapping_update_ir_missing_cnt(sc, map_idx, 3123 element, wwid_table[i]); 3124 } else if (element->ReasonCode == 3125 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 3126 map_idx = _mapping_get_mt_idx_from_handle(sc, 3127 le16toh(element->VolDevHandle)); 3128 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3129 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3130 "to remove volume with handle " 3131 "0x%04x because it has already " 3132 "been removed.\n", __func__, 3133 le16toh(element->VolDevHandle)); 3134 continue; 3135 } 3136 mt_entry = &sc->mapping_table[map_idx]; 3137 _mapping_update_ir_missing_cnt(sc, map_idx, 3138 element, mt_entry->physical_id); 3139 } 3140 } 3141 } 3142 3143 out: 3144 _mapping_flush_dpm_pages(sc); 3145 free(wwid_table, M_MPR); 3146 if (sc->pending_map_events) 3147 sc->pending_map_events--; 3148 } 3149