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