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 } else { 1192 mpr_dprint(sc, MPR_INFO, "SAS Address for SATA " 1193 "device = %jx\n", sas_address); 1194 } 1195 } 1196 1197 phy_change->physical_id = sas_address; 1198 phy_change->slot = le16toh(sas_device_pg0.Slot); 1199 phy_change->device_info = device_info; 1200 1201 /* 1202 * When using Enc/Slot mapping, if this device is an enclosure 1203 * make sure that all of its slots can fit into the mapping 1204 * table. 1205 */ 1206 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1207 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1208 /* 1209 * The enclosure should already be in the enclosure 1210 * table due to the Enclosure Add event. If not, just 1211 * continue, nothing can be done. 1212 */ 1213 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1214 topo_change->enc_handle); 1215 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1216 phy_change->is_processed = 1; 1217 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1218 "failed to add the device with handle " 1219 "0x%04x because the enclosure is not in " 1220 "the mapping table\n", __func__, 1221 phy_change->dev_handle); 1222 continue; 1223 } 1224 if (!((phy_change->device_info & 1225 MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1226 (phy_change->device_info & 1227 (MPI2_SAS_DEVICE_INFO_SSP_TARGET | 1228 MPI2_SAS_DEVICE_INFO_STP_TARGET | 1229 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) { 1230 phy_change->is_processed = 1; 1231 continue; 1232 } 1233 et_entry = &sc->enclosure_table[enc_idx]; 1234 1235 /* 1236 * If the enclosure already has a start_index, it's been 1237 * mapped, so go to the next Topo change. 1238 */ 1239 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1240 continue; 1241 1242 /* 1243 * If the Expander Handle is 0, the devices are direct 1244 * attached. In that case, the start_index must be just 1245 * after the reserved entries. Otherwise, find space in 1246 * the mapping table for the enclosure's devices. 1247 */ 1248 if (!topo_change->exp_handle) { 1249 map_idx = sc->num_rsvd_entries; 1250 et_entry->start_index = map_idx; 1251 } else { 1252 map_idx = _mapping_find_enc_map_space(sc, 1253 et_entry); 1254 et_entry->start_index = map_idx; 1255 1256 /* 1257 * If space cannot be found to hold all of the 1258 * enclosure's devices in the mapping table, 1259 * there's no need to continue checking the 1260 * other devices in this event. Set all of the 1261 * phy_details for this event (if the change is 1262 * for an add) as already processed because none 1263 * of these devices can be added to the mapping 1264 * table. 1265 */ 1266 if (et_entry->start_index == 1267 MPR_MAPTABLE_BAD_IDX) { 1268 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1269 "%s: failed to add the enclosure " 1270 "with ID 0x%016jx because there is " 1271 "no free space available in the " 1272 "mapping table for all of the " 1273 "enclosure's devices.\n", __func__, 1274 (uintmax_t)et_entry->enclosure_id); 1275 phy_change->is_processed = 1; 1276 for (phy_idx = 0; phy_idx < 1277 topo_change->num_entries; 1278 phy_idx++) { 1279 tmp_phy_change = 1280 &topo_change->phy_details 1281 [phy_idx]; 1282 if (tmp_phy_change->reason == 1283 add_code) 1284 tmp_phy_change-> 1285 is_processed = 1; 1286 } 1287 break; 1288 } 1289 } 1290 1291 /* 1292 * Found space in the mapping table for this enclosure. 1293 * Initialize each mapping table entry for the 1294 * enclosure. 1295 */ 1296 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1297 "entries for the enclosure, starting at map index " 1298 " %d.\n", __func__, et_entry->num_slots, map_idx); 1299 mt_entry = &sc->mapping_table[map_idx]; 1300 for (index = map_idx; index < (et_entry->num_slots 1301 + map_idx); index++, mt_entry++) { 1302 mt_entry->device_info = MPR_DEV_RESERVED; 1303 mt_entry->physical_id = et_entry->enclosure_id; 1304 mt_entry->phy_bits = et_entry->phy_bits; 1305 mt_entry->missing_count = 0; 1306 } 1307 } 1308 } 1309 } 1310 1311 /** 1312 * _mapping_get_pcie_dev_info -get information about newly added PCIe devices 1313 * @sc: per adapter object 1314 * @topo_change: Topology change event entry 1315 * 1316 * Searches through the PCIe topology change event list and issues PCIe device 1317 * pg0 requests for the newly added PCIe device. If the device is in an 1318 * enclosure, search for available space in the enclosure mapping table for the 1319 * device and reserve that space. 1320 * 1321 * Returns nothing 1322 */ 1323 static void 1324 _mapping_get_pcie_dev_info(struct mpr_softc *sc, 1325 struct _map_pcie_topology_change *topo_change) 1326 { 1327 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1328 Mpi2ConfigReply_t mpi_reply; 1329 Mpi26PCIeDevicePage0_t pcie_device_pg0; 1330 u8 entry, enc_idx, port_idx; 1331 u32 map_idx, index; 1332 struct _map_port_change *port_change, *tmp_port_change; 1333 uint64_t pcie_wwid; 1334 struct enc_mapping_table *et_entry; 1335 struct dev_mapping_table *mt_entry; 1336 u8 add_code = MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED; 1337 1338 for (entry = 0; entry < topo_change->num_entries; entry++) { 1339 port_change = &topo_change->port_details[entry]; 1340 if (port_change->is_processed || !port_change->dev_handle || 1341 port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED) 1342 continue; 1343 if (mpr_config_get_pcie_device_pg0(sc, &mpi_reply, 1344 &pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, 1345 port_change->dev_handle)) { 1346 port_change->is_processed = 1; 1347 continue; 1348 } 1349 1350 pcie_wwid = pcie_device_pg0.WWID.High; 1351 pcie_wwid = (pcie_wwid << 32) | pcie_device_pg0.WWID.Low; 1352 port_change->physical_id = pcie_wwid; 1353 port_change->slot = le16toh(pcie_device_pg0.Slot); 1354 port_change->device_info = le32toh(pcie_device_pg0.DeviceInfo); 1355 1356 /* 1357 * When using Enc/Slot mapping, if this device is an enclosure 1358 * make sure that all of its slots can fit into the mapping 1359 * table. 1360 */ 1361 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1362 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1363 /* 1364 * The enclosure should already be in the enclosure 1365 * table due to the Enclosure Add event. If not, just 1366 * continue, nothing can be done. 1367 */ 1368 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1369 topo_change->enc_handle); 1370 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1371 port_change->is_processed = 1; 1372 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1373 "failed to add the device with handle " 1374 "0x%04x because the enclosure is not in " 1375 "the mapping table\n", __func__, 1376 port_change->dev_handle); 1377 continue; 1378 } 1379 if (!(port_change->device_info & 1380 MPI26_PCIE_DEVINFO_NVME)) { 1381 port_change->is_processed = 1; 1382 continue; 1383 } 1384 et_entry = &sc->enclosure_table[enc_idx]; 1385 1386 /* 1387 * If the enclosure already has a start_index, it's been 1388 * mapped, so go to the next Topo change. 1389 */ 1390 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1391 continue; 1392 1393 /* 1394 * If the Switch Handle is 0, the devices are direct 1395 * attached. In that case, the start_index must be just 1396 * after the reserved entries. Otherwise, find space in 1397 * the mapping table for the enclosure's devices. 1398 */ 1399 if (!topo_change->switch_dev_handle) { 1400 map_idx = sc->num_rsvd_entries; 1401 et_entry->start_index = map_idx; 1402 } else { 1403 map_idx = _mapping_find_enc_map_space(sc, 1404 et_entry); 1405 et_entry->start_index = map_idx; 1406 1407 /* 1408 * If space cannot be found to hold all of the 1409 * enclosure's devices in the mapping table, 1410 * there's no need to continue checking the 1411 * other devices in this event. Set all of the 1412 * port_details for this event (if the change is 1413 * for an add) as already processed because none 1414 * of these devices can be added to the mapping 1415 * table. 1416 */ 1417 if (et_entry->start_index == 1418 MPR_MAPTABLE_BAD_IDX) { 1419 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1420 "%s: failed to add the enclosure " 1421 "with ID 0x%016jx because there is " 1422 "no free space available in the " 1423 "mapping table for all of the " 1424 "enclosure's devices.\n", __func__, 1425 (uintmax_t)et_entry->enclosure_id); 1426 port_change->is_processed = 1; 1427 for (port_idx = 0; port_idx < 1428 topo_change->num_entries; 1429 port_idx++) { 1430 tmp_port_change = 1431 &topo_change->port_details 1432 [port_idx]; 1433 if (tmp_port_change->reason == 1434 add_code) 1435 tmp_port_change-> 1436 is_processed = 1; 1437 } 1438 break; 1439 } 1440 } 1441 1442 /* 1443 * Found space in the mapping table for this enclosure. 1444 * Initialize each mapping table entry for the 1445 * enclosure. 1446 */ 1447 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1448 "entries for the enclosure, starting at map index " 1449 " %d.\n", __func__, et_entry->num_slots, map_idx); 1450 mt_entry = &sc->mapping_table[map_idx]; 1451 for (index = map_idx; index < (et_entry->num_slots 1452 + map_idx); index++, mt_entry++) { 1453 mt_entry->device_info = MPR_DEV_RESERVED; 1454 mt_entry->physical_id = et_entry->enclosure_id; 1455 mt_entry->phy_bits = et_entry->phy_bits; 1456 mt_entry->missing_count = 0; 1457 } 1458 } 1459 } 1460 } 1461 1462 /** 1463 * _mapping_set_mid_to_eid -set map table data from enclosure table 1464 * @sc: per adapter object 1465 * @et_entry: enclosure entry 1466 * 1467 * Returns nothing 1468 */ 1469 static inline void 1470 _mapping_set_mid_to_eid(struct mpr_softc *sc, 1471 struct enc_mapping_table *et_entry) 1472 { 1473 struct dev_mapping_table *mt_entry; 1474 u16 slots = et_entry->num_slots, map_idx; 1475 u32 start_idx = et_entry->start_index; 1476 1477 if (start_idx != MPR_MAPTABLE_BAD_IDX) { 1478 mt_entry = &sc->mapping_table[start_idx]; 1479 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++) 1480 mt_entry->physical_id = et_entry->enclosure_id; 1481 } 1482 } 1483 1484 /** 1485 * _mapping_clear_removed_entries - mark the entries to be cleared 1486 * @sc: per adapter object 1487 * 1488 * Search through the removal table and mark the entries which needs to be 1489 * flushed to DPM and also updates the map table and enclosure table by 1490 * clearing the corresponding entries. 1491 * 1492 * Returns nothing 1493 */ 1494 static void 1495 _mapping_clear_removed_entries(struct mpr_softc *sc) 1496 { 1497 u32 remove_idx; 1498 struct map_removal_table *remove_entry; 1499 Mpi2DriverMap0Entry_t *dpm_entry; 1500 u8 done_flag = 0, num_entries, m, i; 1501 struct enc_mapping_table *et_entry, *from, *to; 1502 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1503 1504 if (sc->is_dpm_enable) { 1505 remove_entry = sc->removal_table; 1506 for (remove_idx = 0; remove_idx < sc->max_devices; 1507 remove_idx++, remove_entry++) { 1508 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 1509 dpm_entry = (Mpi2DriverMap0Entry_t *) 1510 ((u8 *) sc->dpm_pg0 + 1511 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1512 dpm_entry += remove_entry->dpm_entry_num; 1513 dpm_entry->PhysicalIdentifier.Low = 0; 1514 dpm_entry->PhysicalIdentifier.High = 0; 1515 dpm_entry->DeviceIndex = 0; 1516 dpm_entry->MappingInformation = 0; 1517 dpm_entry->PhysicalBitsMapping = 0; 1518 sc->dpm_flush_entry[remove_entry-> 1519 dpm_entry_num] = 1; 1520 sc->dpm_entry_used[remove_entry->dpm_entry_num] 1521 = 0; 1522 remove_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 1523 } 1524 } 1525 } 1526 1527 /* 1528 * When using Enc/Slot mapping, if a new enclosure was added and old 1529 * enclosure space was needed, the enclosure table may now have gaps 1530 * that need to be closed. All enclosure mappings need to be contiguous 1531 * so that space can be reused correctly if available. 1532 */ 1533 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1534 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1535 num_entries = sc->num_enc_table_entries; 1536 while (!done_flag) { 1537 done_flag = 1; 1538 et_entry = sc->enclosure_table; 1539 for (i = 0; i < num_entries; i++, et_entry++) { 1540 if (!et_entry->enc_handle && et_entry-> 1541 init_complete) { 1542 done_flag = 0; 1543 if (i != (num_entries - 1)) { 1544 from = &sc->enclosure_table 1545 [i+1]; 1546 to = &sc->enclosure_table[i]; 1547 for (m = i; m < (num_entries - 1548 1); m++, from++, to++) { 1549 _mapping_set_mid_to_eid 1550 (sc, to); 1551 *to = *from; 1552 } 1553 _mapping_clear_enc_entry(to); 1554 sc->num_enc_table_entries--; 1555 num_entries = 1556 sc->num_enc_table_entries; 1557 } else { 1558 _mapping_clear_enc_entry 1559 (et_entry); 1560 sc->num_enc_table_entries--; 1561 num_entries = 1562 sc->num_enc_table_entries; 1563 } 1564 } 1565 } 1566 } 1567 } 1568 } 1569 1570 /** 1571 * _mapping_add_new_device -Add the new device into mapping table 1572 * @sc: per adapter object 1573 * @topo_change: Topology change event entry 1574 * 1575 * Search through the topology change event list and update map table, 1576 * enclosure table and DPM pages for the newly added devices. 1577 * 1578 * Returns nothing 1579 */ 1580 static void 1581 _mapping_add_new_device(struct mpr_softc *sc, 1582 struct _map_topology_change *topo_change) 1583 { 1584 u8 enc_idx, missing_cnt, is_removed = 0; 1585 u16 dpm_idx; 1586 u32 search_idx, map_idx; 1587 u32 entry; 1588 struct dev_mapping_table *mt_entry; 1589 struct enc_mapping_table *et_entry; 1590 struct _map_phy_change *phy_change; 1591 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1592 Mpi2DriverMap0Entry_t *dpm_entry; 1593 uint64_t temp64_var; 1594 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1595 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1596 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1597 1598 for (entry = 0; entry < topo_change->num_entries; entry++) { 1599 phy_change = &topo_change->phy_details[entry]; 1600 if (phy_change->is_processed) 1601 continue; 1602 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED || 1603 !phy_change->dev_handle) { 1604 phy_change->is_processed = 1; 1605 continue; 1606 } 1607 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1608 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1609 enc_idx = _mapping_get_enc_idx_from_handle 1610 (sc, topo_change->enc_handle); 1611 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1612 phy_change->is_processed = 1; 1613 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1614 "failed to add the device with handle " 1615 "0x%04x because the enclosure is not in " 1616 "the mapping table\n", __func__, 1617 phy_change->dev_handle); 1618 continue; 1619 } 1620 1621 /* 1622 * If the enclosure's start_index is BAD here, it means 1623 * that there is no room in the mapping table to cover 1624 * all of the devices that could be in the enclosure. 1625 * There's no reason to process any of the devices for 1626 * this enclosure since they can't be mapped. 1627 */ 1628 et_entry = &sc->enclosure_table[enc_idx]; 1629 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1630 phy_change->is_processed = 1; 1631 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1632 "failed to add the device with handle " 1633 "0x%04x because there is no free space " 1634 "available in the mapping table\n", 1635 __func__, phy_change->dev_handle); 1636 continue; 1637 } 1638 1639 /* 1640 * Add this device to the mapping table at the correct 1641 * offset where space was found to map the enclosure. 1642 * Then setup the DPM entry information if being used. 1643 */ 1644 map_idx = et_entry->start_index + phy_change->slot - 1645 et_entry->start_slot; 1646 mt_entry = &sc->mapping_table[map_idx]; 1647 mt_entry->physical_id = phy_change->physical_id; 1648 mt_entry->id = map_idx; 1649 mt_entry->dev_handle = phy_change->dev_handle; 1650 mt_entry->missing_count = 0; 1651 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1652 mt_entry->device_info = phy_change->device_info | 1653 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1654 if (sc->is_dpm_enable) { 1655 dpm_idx = et_entry->dpm_entry_num; 1656 if (dpm_idx == MPR_DPM_BAD_IDX) 1657 dpm_idx = _mapping_get_dpm_idx_from_id 1658 (sc, et_entry->enclosure_id, 1659 et_entry->phy_bits); 1660 if (dpm_idx == MPR_DPM_BAD_IDX) { 1661 dpm_idx = _mapping_get_free_dpm_idx(sc); 1662 if (dpm_idx != MPR_DPM_BAD_IDX) { 1663 dpm_entry = 1664 (Mpi2DriverMap0Entry_t *) 1665 ((u8 *) sc->dpm_pg0 + 1666 hdr_sz); 1667 dpm_entry += dpm_idx; 1668 dpm_entry-> 1669 PhysicalIdentifier.Low = 1670 (0xFFFFFFFF & 1671 et_entry->enclosure_id); 1672 dpm_entry-> 1673 PhysicalIdentifier.High = 1674 (et_entry->enclosure_id 1675 >> 32); 1676 dpm_entry->DeviceIndex = 1677 (U16)et_entry->start_index; 1678 dpm_entry->MappingInformation = 1679 et_entry->num_slots; 1680 dpm_entry->MappingInformation 1681 <<= map_shift; 1682 dpm_entry->PhysicalBitsMapping 1683 = et_entry->phy_bits; 1684 et_entry->dpm_entry_num = 1685 dpm_idx; 1686 sc->dpm_entry_used[dpm_idx] = 1; 1687 sc->dpm_flush_entry[dpm_idx] = 1688 1; 1689 phy_change->is_processed = 1; 1690 } else { 1691 phy_change->is_processed = 1; 1692 mpr_dprint(sc, MPR_ERROR | 1693 MPR_MAPPING, "%s: failed " 1694 "to add the device with " 1695 "handle 0x%04x to " 1696 "persistent table because " 1697 "there is no free space " 1698 "available\n", __func__, 1699 phy_change->dev_handle); 1700 } 1701 } else { 1702 et_entry->dpm_entry_num = dpm_idx; 1703 mt_entry->dpm_entry_num = dpm_idx; 1704 } 1705 } 1706 et_entry->init_complete = 1; 1707 } else if ((ioc_pg8_flags & 1708 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1709 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1710 1711 /* 1712 * Get the mapping table index for this device. If it's 1713 * not in the mapping table yet, find a free entry if 1714 * one is available. If there are no free entries, look 1715 * for the entry that has the highest missing count. If 1716 * none of that works to find an entry in the mapping 1717 * table, there is a problem. Log a message and just 1718 * continue on. 1719 */ 1720 map_idx = _mapping_get_mt_idx_from_id 1721 (sc, phy_change->physical_id); 1722 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1723 search_idx = sc->num_rsvd_entries; 1724 if (topo_change->exp_handle) 1725 search_idx += max_num_phy_ids; 1726 map_idx = _mapping_get_free_mt_idx(sc, 1727 search_idx); 1728 } 1729 1730 /* 1731 * If an entry will be used that has a missing device, 1732 * clear its entry from the DPM in the controller. 1733 */ 1734 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1735 map_idx = _mapping_get_high_missing_mt_idx(sc); 1736 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1737 mt_entry = &sc->mapping_table[map_idx]; 1738 _mapping_add_to_removal_table(sc, 1739 mt_entry->dpm_entry_num); 1740 is_removed = 1; 1741 mt_entry->init_complete = 0; 1742 } 1743 } 1744 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1745 mt_entry = &sc->mapping_table[map_idx]; 1746 mt_entry->physical_id = phy_change->physical_id; 1747 mt_entry->id = map_idx; 1748 mt_entry->dev_handle = phy_change->dev_handle; 1749 mt_entry->missing_count = 0; 1750 mt_entry->device_info = phy_change->device_info 1751 | (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1752 } else { 1753 phy_change->is_processed = 1; 1754 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1755 "failed to add the device with handle " 1756 "0x%04x because there is no free space " 1757 "available in the mapping table\n", 1758 __func__, phy_change->dev_handle); 1759 continue; 1760 } 1761 if (sc->is_dpm_enable) { 1762 if (mt_entry->dpm_entry_num != 1763 MPR_DPM_BAD_IDX) { 1764 dpm_idx = mt_entry->dpm_entry_num; 1765 dpm_entry = (Mpi2DriverMap0Entry_t *) 1766 ((u8 *)sc->dpm_pg0 + hdr_sz); 1767 dpm_entry += dpm_idx; 1768 missing_cnt = dpm_entry-> 1769 MappingInformation & 1770 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1771 temp64_var = dpm_entry-> 1772 PhysicalIdentifier.High; 1773 temp64_var = (temp64_var << 32) | 1774 dpm_entry->PhysicalIdentifier.Low; 1775 1776 /* 1777 * If the Mapping Table's info is not 1778 * the same as the DPM entry, clear the 1779 * init_complete flag so that it's 1780 * updated. 1781 */ 1782 if ((mt_entry->physical_id == 1783 temp64_var) && !missing_cnt) 1784 mt_entry->init_complete = 1; 1785 else 1786 mt_entry->init_complete = 0; 1787 } else { 1788 dpm_idx = _mapping_get_free_dpm_idx(sc); 1789 mt_entry->init_complete = 0; 1790 } 1791 if (dpm_idx != MPR_DPM_BAD_IDX && 1792 !mt_entry->init_complete) { 1793 mt_entry->dpm_entry_num = dpm_idx; 1794 dpm_entry = (Mpi2DriverMap0Entry_t *) 1795 ((u8 *)sc->dpm_pg0 + hdr_sz); 1796 dpm_entry += dpm_idx; 1797 dpm_entry->PhysicalIdentifier.Low = 1798 (0xFFFFFFFF & 1799 mt_entry->physical_id); 1800 dpm_entry->PhysicalIdentifier.High = 1801 (mt_entry->physical_id >> 32); 1802 dpm_entry->DeviceIndex = (U16) map_idx; 1803 dpm_entry->MappingInformation = 0; 1804 dpm_entry->PhysicalBitsMapping = 0; 1805 sc->dpm_entry_used[dpm_idx] = 1; 1806 sc->dpm_flush_entry[dpm_idx] = 1; 1807 phy_change->is_processed = 1; 1808 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 1809 phy_change->is_processed = 1; 1810 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1811 "%s: failed to add the device with " 1812 "handle 0x%04x to persistent table " 1813 "because there is no free space " 1814 "available\n", __func__, 1815 phy_change->dev_handle); 1816 } 1817 } 1818 mt_entry->init_complete = 1; 1819 } 1820 1821 phy_change->is_processed = 1; 1822 } 1823 if (is_removed) 1824 _mapping_clear_removed_entries(sc); 1825 } 1826 1827 /** 1828 * _mapping_add_new_pcie_device -Add the new PCIe device into mapping table 1829 * @sc: per adapter object 1830 * @topo_change: Topology change event entry 1831 * 1832 * Search through the PCIe topology change event list and update map table, 1833 * enclosure table and DPM pages for the newly added devices. 1834 * 1835 * Returns nothing 1836 */ 1837 static void 1838 _mapping_add_new_pcie_device(struct mpr_softc *sc, 1839 struct _map_pcie_topology_change *topo_change) 1840 { 1841 u8 enc_idx, missing_cnt, is_removed = 0; 1842 u16 dpm_idx; 1843 u32 search_idx, map_idx; 1844 u32 entry; 1845 struct dev_mapping_table *mt_entry; 1846 struct enc_mapping_table *et_entry; 1847 struct _map_port_change *port_change; 1848 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1849 Mpi2DriverMap0Entry_t *dpm_entry; 1850 uint64_t temp64_var; 1851 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1852 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1853 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1854 1855 for (entry = 0; entry < topo_change->num_entries; entry++) { 1856 port_change = &topo_change->port_details[entry]; 1857 if (port_change->is_processed) 1858 continue; 1859 if (port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED || 1860 !port_change->dev_handle) { 1861 port_change->is_processed = 1; 1862 continue; 1863 } 1864 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1865 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1866 enc_idx = _mapping_get_enc_idx_from_handle 1867 (sc, topo_change->enc_handle); 1868 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1869 port_change->is_processed = 1; 1870 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1871 "failed to add the device with handle " 1872 "0x%04x because the enclosure is not in " 1873 "the mapping table\n", __func__, 1874 port_change->dev_handle); 1875 continue; 1876 } 1877 1878 /* 1879 * If the enclosure's start_index is BAD here, it means 1880 * that there is no room in the mapping table to cover 1881 * all of the devices that could be in the enclosure. 1882 * There's no reason to process any of the devices for 1883 * this enclosure since they can't be mapped. 1884 */ 1885 et_entry = &sc->enclosure_table[enc_idx]; 1886 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1887 port_change->is_processed = 1; 1888 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1889 "failed to add the device with handle " 1890 "0x%04x because there is no free space " 1891 "available in the mapping table\n", 1892 __func__, port_change->dev_handle); 1893 continue; 1894 } 1895 1896 /* 1897 * Add this device to the mapping table at the correct 1898 * offset where space was found to map the enclosure. 1899 * Then setup the DPM entry information if being used. 1900 */ 1901 map_idx = et_entry->start_index + port_change->slot - 1902 et_entry->start_slot; 1903 mt_entry = &sc->mapping_table[map_idx]; 1904 mt_entry->physical_id = port_change->physical_id; 1905 mt_entry->id = map_idx; 1906 mt_entry->dev_handle = port_change->dev_handle; 1907 mt_entry->missing_count = 0; 1908 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1909 mt_entry->device_info = port_change->device_info | 1910 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1911 if (sc->is_dpm_enable) { 1912 dpm_idx = et_entry->dpm_entry_num; 1913 if (dpm_idx == MPR_DPM_BAD_IDX) 1914 dpm_idx = _mapping_get_dpm_idx_from_id 1915 (sc, et_entry->enclosure_id, 1916 et_entry->phy_bits); 1917 if (dpm_idx == MPR_DPM_BAD_IDX) { 1918 dpm_idx = _mapping_get_free_dpm_idx(sc); 1919 if (dpm_idx != MPR_DPM_BAD_IDX) { 1920 dpm_entry = 1921 (Mpi2DriverMap0Entry_t *) 1922 ((u8 *) sc->dpm_pg0 + 1923 hdr_sz); 1924 dpm_entry += dpm_idx; 1925 dpm_entry-> 1926 PhysicalIdentifier.Low = 1927 (0xFFFFFFFF & 1928 et_entry->enclosure_id); 1929 dpm_entry-> 1930 PhysicalIdentifier.High = 1931 (et_entry->enclosure_id 1932 >> 32); 1933 dpm_entry->DeviceIndex = 1934 (U16)et_entry->start_index; 1935 dpm_entry->MappingInformation = 1936 et_entry->num_slots; 1937 dpm_entry->MappingInformation 1938 <<= map_shift; 1939 dpm_entry->PhysicalBitsMapping 1940 = et_entry->phy_bits; 1941 et_entry->dpm_entry_num = 1942 dpm_idx; 1943 sc->dpm_entry_used[dpm_idx] = 1; 1944 sc->dpm_flush_entry[dpm_idx] = 1945 1; 1946 port_change->is_processed = 1; 1947 } else { 1948 port_change->is_processed = 1; 1949 mpr_dprint(sc, MPR_ERROR | 1950 MPR_MAPPING, "%s: failed " 1951 "to add the device with " 1952 "handle 0x%04x to " 1953 "persistent table because " 1954 "there is no free space " 1955 "available\n", __func__, 1956 port_change->dev_handle); 1957 } 1958 } else { 1959 et_entry->dpm_entry_num = dpm_idx; 1960 mt_entry->dpm_entry_num = dpm_idx; 1961 } 1962 } 1963 et_entry->init_complete = 1; 1964 } else if ((ioc_pg8_flags & 1965 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1966 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1967 1968 /* 1969 * Get the mapping table index for this device. If it's 1970 * not in the mapping table yet, find a free entry if 1971 * one is available. If there are no free entries, look 1972 * for the entry that has the highest missing count. If 1973 * none of that works to find an entry in the mapping 1974 * table, there is a problem. Log a message and just 1975 * continue on. 1976 */ 1977 map_idx = _mapping_get_mt_idx_from_id 1978 (sc, port_change->physical_id); 1979 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1980 search_idx = sc->num_rsvd_entries; 1981 if (topo_change->switch_dev_handle) 1982 search_idx += max_num_phy_ids; 1983 map_idx = _mapping_get_free_mt_idx(sc, 1984 search_idx); 1985 } 1986 1987 /* 1988 * If an entry will be used that has a missing device, 1989 * clear its entry from the DPM in the controller. 1990 */ 1991 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1992 map_idx = _mapping_get_high_missing_mt_idx(sc); 1993 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1994 mt_entry = &sc->mapping_table[map_idx]; 1995 _mapping_add_to_removal_table(sc, 1996 mt_entry->dpm_entry_num); 1997 is_removed = 1; 1998 mt_entry->init_complete = 0; 1999 } 2000 } 2001 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 2002 mt_entry = &sc->mapping_table[map_idx]; 2003 mt_entry->physical_id = 2004 port_change->physical_id; 2005 mt_entry->id = map_idx; 2006 mt_entry->dev_handle = port_change->dev_handle; 2007 mt_entry->missing_count = 0; 2008 mt_entry->device_info = 2009 port_change->device_info | 2010 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 2011 } else { 2012 port_change->is_processed = 1; 2013 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2014 "failed to add the device with handle " 2015 "0x%04x because there is no free space " 2016 "available in the mapping table\n", 2017 __func__, port_change->dev_handle); 2018 continue; 2019 } 2020 if (sc->is_dpm_enable) { 2021 if (mt_entry->dpm_entry_num != 2022 MPR_DPM_BAD_IDX) { 2023 dpm_idx = mt_entry->dpm_entry_num; 2024 dpm_entry = (Mpi2DriverMap0Entry_t *) 2025 ((u8 *)sc->dpm_pg0 + hdr_sz); 2026 dpm_entry += dpm_idx; 2027 missing_cnt = dpm_entry-> 2028 MappingInformation & 2029 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2030 temp64_var = dpm_entry-> 2031 PhysicalIdentifier.High; 2032 temp64_var = (temp64_var << 32) | 2033 dpm_entry->PhysicalIdentifier.Low; 2034 2035 /* 2036 * If the Mapping Table's info is not 2037 * the same as the DPM entry, clear the 2038 * init_complete flag so that it's 2039 * updated. 2040 */ 2041 if ((mt_entry->physical_id == 2042 temp64_var) && !missing_cnt) 2043 mt_entry->init_complete = 1; 2044 else 2045 mt_entry->init_complete = 0; 2046 } else { 2047 dpm_idx = _mapping_get_free_dpm_idx(sc); 2048 mt_entry->init_complete = 0; 2049 } 2050 if (dpm_idx != MPR_DPM_BAD_IDX && 2051 !mt_entry->init_complete) { 2052 mt_entry->dpm_entry_num = dpm_idx; 2053 dpm_entry = (Mpi2DriverMap0Entry_t *) 2054 ((u8 *)sc->dpm_pg0 + hdr_sz); 2055 dpm_entry += dpm_idx; 2056 dpm_entry->PhysicalIdentifier.Low = 2057 (0xFFFFFFFF & 2058 mt_entry->physical_id); 2059 dpm_entry->PhysicalIdentifier.High = 2060 (mt_entry->physical_id >> 32); 2061 dpm_entry->DeviceIndex = (U16) map_idx; 2062 dpm_entry->MappingInformation = 0; 2063 dpm_entry->PhysicalBitsMapping = 0; 2064 sc->dpm_entry_used[dpm_idx] = 1; 2065 sc->dpm_flush_entry[dpm_idx] = 1; 2066 port_change->is_processed = 1; 2067 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 2068 port_change->is_processed = 1; 2069 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2070 "%s: failed to add the device with " 2071 "handle 0x%04x to persistent table " 2072 "because there is no free space " 2073 "available\n", __func__, 2074 port_change->dev_handle); 2075 } 2076 } 2077 mt_entry->init_complete = 1; 2078 } 2079 2080 port_change->is_processed = 1; 2081 } 2082 if (is_removed) 2083 _mapping_clear_removed_entries(sc); 2084 } 2085 2086 /** 2087 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM 2088 * @sc: per adapter object 2089 * 2090 * Returns nothing 2091 */ 2092 static void 2093 _mapping_flush_dpm_pages(struct mpr_softc *sc) 2094 { 2095 Mpi2DriverMap0Entry_t *dpm_entry; 2096 Mpi2ConfigReply_t mpi_reply; 2097 Mpi2DriverMappingPage0_t config_page; 2098 u16 entry_num; 2099 2100 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2101 if (!sc->dpm_flush_entry[entry_num]) 2102 continue; 2103 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 2104 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 2105 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2106 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 2107 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2108 dpm_entry += entry_num; 2109 dpm_entry->MappingInformation = htole16(dpm_entry-> 2110 MappingInformation); 2111 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex); 2112 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry-> 2113 PhysicalBitsMapping); 2114 memcpy(&config_page.Entry, (u8 *)dpm_entry, 2115 sizeof(Mpi2DriverMap0Entry_t)); 2116 /* TODO-How to handle failed writes? */ 2117 mpr_dprint(sc, MPR_MAPPING, "%s: Flushing DPM entry %d.\n", 2118 __func__, entry_num); 2119 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 2120 entry_num)) { 2121 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Flush of " 2122 "DPM entry %d for device failed\n", __func__, 2123 entry_num); 2124 } else 2125 sc->dpm_flush_entry[entry_num] = 0; 2126 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2127 MappingInformation); 2128 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 2129 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry-> 2130 PhysicalBitsMapping); 2131 } 2132 } 2133 2134 /** 2135 * _mapping_allocate_memory- allocates the memory required for mapping tables 2136 * @sc: per adapter object 2137 * 2138 * Allocates the memory for all the tables required for host mapping 2139 * 2140 * Return 0 on success or non-zero on failure. 2141 */ 2142 int 2143 mpr_mapping_allocate_memory(struct mpr_softc *sc) 2144 { 2145 uint32_t dpm_pg0_sz; 2146 2147 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) * 2148 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2149 if (!sc->mapping_table) 2150 goto free_resources; 2151 2152 sc->removal_table = malloc((sizeof(struct map_removal_table) * 2153 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2154 if (!sc->removal_table) 2155 goto free_resources; 2156 2157 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) * 2158 sc->max_enclosures), M_MPR, M_ZERO|M_NOWAIT); 2159 if (!sc->enclosure_table) 2160 goto free_resources; 2161 2162 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries), 2163 M_MPR, M_ZERO|M_NOWAIT); 2164 if (!sc->dpm_entry_used) 2165 goto free_resources; 2166 2167 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries), 2168 M_MPR, M_ZERO|M_NOWAIT); 2169 if (!sc->dpm_flush_entry) 2170 goto free_resources; 2171 2172 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2173 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2174 2175 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPR, M_ZERO|M_NOWAIT); 2176 if (!sc->dpm_pg0) { 2177 printf("%s: memory alloc failed for dpm page; disabling dpm\n", 2178 __func__); 2179 sc->is_dpm_enable = 0; 2180 } 2181 2182 return 0; 2183 2184 free_resources: 2185 free(sc->mapping_table, M_MPR); 2186 free(sc->removal_table, M_MPR); 2187 free(sc->enclosure_table, M_MPR); 2188 free(sc->dpm_entry_used, M_MPR); 2189 free(sc->dpm_flush_entry, M_MPR); 2190 free(sc->dpm_pg0, M_MPR); 2191 printf("%s: device initialization failed due to failure in mapping " 2192 "table memory allocation\n", __func__); 2193 return -1; 2194 } 2195 2196 /** 2197 * mpr_mapping_free_memory- frees the memory allocated for mapping tables 2198 * @sc: per adapter object 2199 * 2200 * Returns nothing. 2201 */ 2202 void 2203 mpr_mapping_free_memory(struct mpr_softc *sc) 2204 { 2205 free(sc->mapping_table, M_MPR); 2206 free(sc->removal_table, M_MPR); 2207 free(sc->enclosure_table, M_MPR); 2208 free(sc->dpm_entry_used, M_MPR); 2209 free(sc->dpm_flush_entry, M_MPR); 2210 free(sc->dpm_pg0, M_MPR); 2211 } 2212 2213 static void 2214 _mapping_process_dpm_pg0(struct mpr_softc *sc) 2215 { 2216 u8 missing_cnt, enc_idx; 2217 u16 slot_id, entry_num, num_slots; 2218 u32 map_idx, dev_idx, start_idx, end_idx; 2219 struct dev_mapping_table *mt_entry; 2220 Mpi2DriverMap0Entry_t *dpm_entry; 2221 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2222 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 2223 struct enc_mapping_table *et_entry; 2224 u64 physical_id; 2225 u32 phy_bits = 0; 2226 2227 /* 2228 * start_idx and end_idx are only used for IR. 2229 */ 2230 if (sc->ir_firmware) 2231 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2232 2233 /* 2234 * Look through all of the DPM entries that were read from the 2235 * controller and copy them over to the driver's internal table if they 2236 * have a non-zero ID. At this point, any ID with a value of 0 would be 2237 * invalid, so don't copy it. 2238 */ 2239 mpr_dprint(sc, MPR_MAPPING, "%s: Start copy of %d DPM entries into the " 2240 "mapping table.\n", __func__, sc->max_dpm_entries); 2241 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2242 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2243 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 2244 dpm_entry++) { 2245 physical_id = dpm_entry->PhysicalIdentifier.High; 2246 physical_id = (physical_id << 32) | 2247 dpm_entry->PhysicalIdentifier.Low; 2248 if (!physical_id) { 2249 sc->dpm_entry_used[entry_num] = 0; 2250 continue; 2251 } 2252 sc->dpm_entry_used[entry_num] = 1; 2253 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2254 MappingInformation); 2255 missing_cnt = dpm_entry->MappingInformation & 2256 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2257 dev_idx = le16toh(dpm_entry->DeviceIndex); 2258 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping); 2259 2260 /* 2261 * Volumes are at special locations in the mapping table so 2262 * account for that. Volume mapping table entries do not depend 2263 * on the type of mapping, so continue the loop after adding 2264 * volumes to the mapping table. 2265 */ 2266 if (sc->ir_firmware && (dev_idx >= start_idx) && 2267 (dev_idx <= end_idx)) { 2268 mt_entry = &sc->mapping_table[dev_idx]; 2269 mt_entry->physical_id = 2270 dpm_entry->PhysicalIdentifier.High; 2271 mt_entry->physical_id = (mt_entry->physical_id << 32) | 2272 dpm_entry->PhysicalIdentifier.Low; 2273 mt_entry->id = dev_idx; 2274 mt_entry->missing_count = missing_cnt; 2275 mt_entry->dpm_entry_num = entry_num; 2276 mt_entry->device_info = MPR_DEV_RESERVED; 2277 continue; 2278 } 2279 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2280 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2281 2282 /* 2283 * The dev_idx for an enclosure is the start index. If 2284 * the start index is within the controller's default 2285 * enclosure area, set the number of slots for this 2286 * enclosure to the max allowed. Otherwise, it should be 2287 * a normal enclosure and the number of slots is in the 2288 * DPM entry's Mapping Information. 2289 */ 2290 if (dev_idx < (sc->num_rsvd_entries + 2291 max_num_phy_ids)) { 2292 slot_id = 0; 2293 if (ioc_pg8_flags & 2294 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1) 2295 slot_id = 1; 2296 num_slots = max_num_phy_ids; 2297 } else { 2298 slot_id = 0; 2299 num_slots = dpm_entry->MappingInformation & 2300 MPI2_DRVMAP0_MAPINFO_SLOT_MASK; 2301 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2302 } 2303 enc_idx = sc->num_enc_table_entries; 2304 if (enc_idx >= sc->max_enclosures) { 2305 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2306 "Number of enclosure entries in DPM exceed " 2307 "the max allowed of %d.\n", __func__, 2308 sc->max_enclosures); 2309 break; 2310 } 2311 sc->num_enc_table_entries++; 2312 et_entry = &sc->enclosure_table[enc_idx]; 2313 physical_id = dpm_entry->PhysicalIdentifier.High; 2314 et_entry->enclosure_id = (physical_id << 32) | 2315 dpm_entry->PhysicalIdentifier.Low; 2316 et_entry->start_index = dev_idx; 2317 et_entry->dpm_entry_num = entry_num; 2318 et_entry->num_slots = num_slots; 2319 et_entry->start_slot = slot_id; 2320 et_entry->missing_count = missing_cnt; 2321 et_entry->phy_bits = phy_bits; 2322 2323 /* 2324 * Initialize all entries for this enclosure in the 2325 * mapping table and mark them as reserved. The actual 2326 * devices have not been processed yet but when they are 2327 * they will use these entries. If an entry is found 2328 * that already has a valid DPM index, the mapping table 2329 * is corrupt. This can happen if the mapping type is 2330 * changed without clearing all of the DPM entries in 2331 * the controller. 2332 */ 2333 mt_entry = &sc->mapping_table[dev_idx]; 2334 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots); 2335 map_idx++, mt_entry++) { 2336 if (mt_entry->dpm_entry_num != 2337 MPR_DPM_BAD_IDX) { 2338 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2339 "%s: Conflict in mapping table for " 2340 " enclosure %d\n", __func__, 2341 enc_idx); 2342 break; 2343 } 2344 physical_id = 2345 dpm_entry->PhysicalIdentifier.High; 2346 mt_entry->physical_id = (physical_id << 32) | 2347 dpm_entry->PhysicalIdentifier.Low; 2348 mt_entry->phy_bits = phy_bits; 2349 mt_entry->id = dev_idx; 2350 mt_entry->dpm_entry_num = entry_num; 2351 mt_entry->missing_count = missing_cnt; 2352 mt_entry->device_info = MPR_DEV_RESERVED; 2353 } 2354 } else if ((ioc_pg8_flags & 2355 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2356 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2357 2358 /* 2359 * Device mapping, so simply copy the DPM entries to the 2360 * mapping table, but check for a corrupt mapping table 2361 * (as described above in Enc/Slot mapping). 2362 */ 2363 map_idx = dev_idx; 2364 mt_entry = &sc->mapping_table[map_idx]; 2365 if (mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2366 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2367 "Conflict in mapping table for device %d\n", 2368 __func__, map_idx); 2369 break; 2370 } 2371 physical_id = dpm_entry->PhysicalIdentifier.High; 2372 mt_entry->physical_id = (physical_id << 32) | 2373 dpm_entry->PhysicalIdentifier.Low; 2374 mt_entry->phy_bits = phy_bits; 2375 mt_entry->id = dev_idx; 2376 mt_entry->missing_count = missing_cnt; 2377 mt_entry->dpm_entry_num = entry_num; 2378 mt_entry->device_info = MPR_DEV_RESERVED; 2379 } 2380 } /*close the loop for DPM table */ 2381 } 2382 2383 /* 2384 * mpr_mapping_check_devices - start of the day check for device availabilty 2385 * @sc: per adapter object 2386 * 2387 * Returns nothing. 2388 */ 2389 void 2390 mpr_mapping_check_devices(void *data) 2391 { 2392 u32 i; 2393 struct dev_mapping_table *mt_entry; 2394 struct mpr_softc *sc = (struct mpr_softc *)data; 2395 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2396 struct enc_mapping_table *et_entry; 2397 u32 start_idx = 0, end_idx = 0; 2398 u8 stop_device_checks = 0; 2399 2400 MPR_FUNCTRACE(sc); 2401 2402 /* 2403 * Clear this flag so that this function is never called again except 2404 * within this function if the check needs to be done again. The 2405 * purpose is to check for missing devices that are currently in the 2406 * mapping table so do this only at driver init after discovery. 2407 */ 2408 sc->track_mapping_events = 0; 2409 2410 /* 2411 * callout synchronization 2412 * This is used to prevent race conditions for the callout. 2413 */ 2414 mpr_dprint(sc, MPR_MAPPING, "%s: Start check for missing devices.\n", 2415 __func__); 2416 mtx_assert(&sc->mpr_mtx, MA_OWNED); 2417 if ((callout_pending(&sc->device_check_callout)) || 2418 (!callout_active(&sc->device_check_callout))) { 2419 mpr_dprint(sc, MPR_MAPPING, "%s: Device Check Callout is " 2420 "already pending or not active.\n", __func__); 2421 return; 2422 } 2423 callout_deactivate(&sc->device_check_callout); 2424 2425 /* 2426 * Use callout to check if any devices in the mapping table have been 2427 * processed yet. If ALL devices are marked as not init_complete, no 2428 * devices have been processed and mapped. Until devices are mapped 2429 * there's no reason to mark them as missing. Continue resetting this 2430 * callout until devices have been mapped. 2431 */ 2432 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2433 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2434 et_entry = sc->enclosure_table; 2435 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2436 if (et_entry->init_complete) { 2437 stop_device_checks = 1; 2438 break; 2439 } 2440 } 2441 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2442 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2443 mt_entry = sc->mapping_table; 2444 for (i = 0; i < sc->max_devices; i++, mt_entry++) { 2445 if (mt_entry->init_complete) { 2446 stop_device_checks = 1; 2447 break; 2448 } 2449 } 2450 } 2451 2452 /* 2453 * Setup another callout check after a delay. Keep doing this until 2454 * devices are mapped. 2455 */ 2456 if (!stop_device_checks) { 2457 mpr_dprint(sc, MPR_MAPPING, "%s: No devices have been mapped. " 2458 "Reset callout to check again after a %d second delay.\n", 2459 __func__, MPR_MISSING_CHECK_DELAY); 2460 callout_reset(&sc->device_check_callout, 2461 MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices, 2462 sc); 2463 return; 2464 } 2465 mpr_dprint(sc, MPR_MAPPING, "%s: Device check complete.\n", __func__); 2466 2467 /* 2468 * Depending on the mapping type, check if devices have been processed 2469 * and update their missing counts if not processed. 2470 */ 2471 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2472 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2473 et_entry = sc->enclosure_table; 2474 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2475 if (!et_entry->init_complete) { 2476 if (et_entry->missing_count < 2477 MPR_MAX_MISSING_COUNT) { 2478 mpr_dprint(sc, MPR_MAPPING, "%s: " 2479 "Enclosure %d is missing from the " 2480 "topology. Update its missing " 2481 "count.\n", __func__, i); 2482 et_entry->missing_count++; 2483 if (et_entry->dpm_entry_num != 2484 MPR_DPM_BAD_IDX) { 2485 _mapping_commit_enc_entry(sc, 2486 et_entry); 2487 } 2488 } 2489 et_entry->init_complete = 1; 2490 } 2491 } 2492 if (!sc->ir_firmware) 2493 return; 2494 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2495 mt_entry = &sc->mapping_table[start_idx]; 2496 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2497 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2498 start_idx = 0; 2499 end_idx = sc->max_devices - 1; 2500 mt_entry = sc->mapping_table; 2501 } 2502 2503 /* 2504 * The start and end indices have been set above according to the 2505 * mapping type. Go through these mappings and update any entries that 2506 * do not have the init_complete flag set, which means they are missing. 2507 */ 2508 if (end_idx == 0) 2509 return; 2510 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) { 2511 if (mt_entry->device_info & MPR_DEV_RESERVED 2512 && !mt_entry->physical_id) 2513 mt_entry->init_complete = 1; 2514 else if (mt_entry->device_info & MPR_DEV_RESERVED) { 2515 if (!mt_entry->init_complete) { 2516 mpr_dprint(sc, MPR_MAPPING, "%s: Device in " 2517 "mapping table at index %d is missing from " 2518 "topology. Update its missing count.\n", 2519 __func__, i); 2520 if (mt_entry->missing_count < 2521 MPR_MAX_MISSING_COUNT) { 2522 mt_entry->missing_count++; 2523 if (mt_entry->dpm_entry_num != 2524 MPR_DPM_BAD_IDX) { 2525 _mapping_commit_map_entry(sc, 2526 mt_entry); 2527 } 2528 } 2529 mt_entry->init_complete = 1; 2530 } 2531 } 2532 } 2533 } 2534 2535 /** 2536 * mpr_mapping_initialize - initialize mapping tables 2537 * @sc: per adapter object 2538 * 2539 * Read controller persitant mapping tables into internal data area. 2540 * 2541 * Return 0 for success or non-zero for failure. 2542 */ 2543 int 2544 mpr_mapping_initialize(struct mpr_softc *sc) 2545 { 2546 uint16_t volume_mapping_flags, dpm_pg0_sz; 2547 uint32_t i; 2548 Mpi2ConfigReply_t mpi_reply; 2549 int error; 2550 uint8_t retry_count; 2551 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2552 2553 /* The additional 1 accounts for the virtual enclosure 2554 * created for the controller 2555 */ 2556 sc->max_enclosures = sc->facts->MaxEnclosures + 1; 2557 sc->max_expanders = sc->facts->MaxSasExpanders; 2558 sc->max_volumes = sc->facts->MaxVolumes; 2559 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes; 2560 sc->pending_map_events = 0; 2561 sc->num_enc_table_entries = 0; 2562 sc->num_rsvd_entries = 0; 2563 sc->max_dpm_entries = sc->ioc_pg8.MaxPersistentEntries; 2564 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0; 2565 sc->track_mapping_events = 0; 2566 2567 mpr_dprint(sc, MPR_MAPPING, "%s: Mapping table has a max of %d entries " 2568 "and DPM has a max of %d entries.\n", __func__, sc->max_devices, 2569 sc->max_dpm_entries); 2570 2571 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING) 2572 sc->is_dpm_enable = 0; 2573 2574 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 2575 sc->num_rsvd_entries = 1; 2576 2577 volume_mapping_flags = sc->ioc_pg8.IRVolumeMappingFlags & 2578 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 2579 if (sc->ir_firmware && (volume_mapping_flags == 2580 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)) 2581 sc->num_rsvd_entries += sc->max_volumes; 2582 2583 error = mpr_mapping_allocate_memory(sc); 2584 if (error) 2585 return (error); 2586 2587 for (i = 0; i < sc->max_devices; i++) 2588 _mapping_clear_map_entry(sc->mapping_table + i); 2589 2590 for (i = 0; i < sc->max_enclosures; i++) 2591 _mapping_clear_enc_entry(sc->enclosure_table + i); 2592 2593 for (i = 0; i < sc->max_devices; i++) { 2594 sc->removal_table[i].dev_handle = 0; 2595 sc->removal_table[i].dpm_entry_num = MPR_DPM_BAD_IDX; 2596 } 2597 2598 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries); 2599 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries); 2600 2601 if (sc->is_dpm_enable) { 2602 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2603 (sc->max_dpm_entries * 2604 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2605 retry_count = 0; 2606 2607 retry_read_dpm: 2608 if (mpr_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0, 2609 dpm_pg0_sz)) { 2610 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: DPM page " 2611 "read failed.\n", __func__); 2612 if (retry_count < 3) { 2613 retry_count++; 2614 goto retry_read_dpm; 2615 } 2616 sc->is_dpm_enable = 0; 2617 } 2618 } 2619 2620 if (sc->is_dpm_enable) 2621 _mapping_process_dpm_pg0(sc); 2622 else { 2623 mpr_dprint(sc, MPR_MAPPING, "%s: DPM processing is disabled. " 2624 "Device mappings will not persist across reboots or " 2625 "resets.\n", __func__); 2626 } 2627 2628 sc->track_mapping_events = 1; 2629 return 0; 2630 } 2631 2632 /** 2633 * mpr_mapping_exit - clear mapping table and associated memory 2634 * @sc: per adapter object 2635 * 2636 * Returns nothing. 2637 */ 2638 void 2639 mpr_mapping_exit(struct mpr_softc *sc) 2640 { 2641 _mapping_flush_dpm_pages(sc); 2642 mpr_mapping_free_memory(sc); 2643 } 2644 2645 /** 2646 * mpr_mapping_get_tid - return the target id for sas device and handle 2647 * @sc: per adapter object 2648 * @sas_address: sas address of the device 2649 * @handle: device handle 2650 * 2651 * Returns valid target ID on success or BAD_ID. 2652 */ 2653 unsigned int 2654 mpr_mapping_get_tid(struct mpr_softc *sc, uint64_t sas_address, u16 handle) 2655 { 2656 u32 map_idx; 2657 struct dev_mapping_table *mt_entry; 2658 2659 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 2660 mt_entry = &sc->mapping_table[map_idx]; 2661 if (mt_entry->dev_handle == handle && mt_entry->physical_id == 2662 sas_address) 2663 return mt_entry->id; 2664 } 2665 2666 return MPR_MAP_BAD_ID; 2667 } 2668 2669 /** 2670 * mpr_mapping_get_tid_from_handle - find a target id in mapping table using 2671 * only the dev handle. This is just a wrapper function for the local function 2672 * _mapping_get_mt_idx_from_handle. 2673 * @sc: per adapter object 2674 * @handle: device handle 2675 * 2676 * Returns valid target ID on success or BAD_ID. 2677 */ 2678 unsigned int 2679 mpr_mapping_get_tid_from_handle(struct mpr_softc *sc, u16 handle) 2680 { 2681 return (_mapping_get_mt_idx_from_handle(sc, handle)); 2682 } 2683 2684 /** 2685 * mpr_mapping_get_raid_tid - return the target id for raid device 2686 * @sc: per adapter object 2687 * @wwid: world wide identifier for raid volume 2688 * @volHandle: volume device handle 2689 * 2690 * Returns valid target ID on success or BAD_ID. 2691 */ 2692 unsigned int 2693 mpr_mapping_get_raid_tid(struct mpr_softc *sc, u64 wwid, u16 volHandle) 2694 { 2695 u32 start_idx, end_idx, map_idx; 2696 struct dev_mapping_table *mt_entry; 2697 2698 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2699 mt_entry = &sc->mapping_table[start_idx]; 2700 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 2701 if (mt_entry->dev_handle == volHandle && 2702 mt_entry->physical_id == wwid) 2703 return mt_entry->id; 2704 } 2705 2706 return MPR_MAP_BAD_ID; 2707 } 2708 2709 /** 2710 * mpr_mapping_get_raid_tid_from_handle - find raid device in mapping table 2711 * using only the volume dev handle. This is just a wrapper function for the 2712 * local function _mapping_get_ir_mt_idx_from_handle. 2713 * @sc: per adapter object 2714 * @volHandle: volume device handle 2715 * 2716 * Returns valid target ID on success or BAD_ID. 2717 */ 2718 unsigned int 2719 mpr_mapping_get_raid_tid_from_handle(struct mpr_softc *sc, u16 volHandle) 2720 { 2721 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle)); 2722 } 2723 2724 /** 2725 * mpr_mapping_enclosure_dev_status_change_event - handle enclosure events 2726 * @sc: per adapter object 2727 * @event_data: event data payload 2728 * 2729 * Return nothing. 2730 */ 2731 void 2732 mpr_mapping_enclosure_dev_status_change_event(struct mpr_softc *sc, 2733 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 2734 { 2735 u8 enc_idx, missing_count; 2736 struct enc_mapping_table *et_entry; 2737 Mpi2DriverMap0Entry_t *dpm_entry; 2738 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2739 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2740 u8 update_phy_bits = 0; 2741 u32 saved_phy_bits; 2742 uint64_t temp64_var; 2743 2744 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) != 2745 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) 2746 goto out; 2747 2748 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 2749 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2750 2751 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) { 2752 if (!event_data->NumSlots) { 2753 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure " 2754 "with handle = 0x%x reported 0 slots.\n", __func__, 2755 le16toh(event_data->EnclosureHandle)); 2756 goto out; 2757 } 2758 temp64_var = event_data->EnclosureLogicalID.High; 2759 temp64_var = (temp64_var << 32) | 2760 event_data->EnclosureLogicalID.Low; 2761 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var, 2762 event_data->PhyBits); 2763 2764 /* 2765 * If the Added enclosure is already in the Enclosure Table, 2766 * make sure that all the the enclosure info is up to date. If 2767 * the enclosure was missing and has just been added back, or if 2768 * the enclosure's Phy Bits have changed, clear the missing 2769 * count and update the Phy Bits in the mapping table and in the 2770 * DPM, if it's being used. 2771 */ 2772 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2773 et_entry = &sc->enclosure_table[enc_idx]; 2774 if (et_entry->init_complete && 2775 !et_entry->missing_count) { 2776 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d " 2777 "is already present with handle = 0x%x\n", 2778 __func__, enc_idx, et_entry->enc_handle); 2779 goto out; 2780 } 2781 et_entry->enc_handle = le16toh(event_data-> 2782 EnclosureHandle); 2783 et_entry->start_slot = le16toh(event_data->StartSlot); 2784 saved_phy_bits = et_entry->phy_bits; 2785 et_entry->phy_bits |= le32toh(event_data->PhyBits); 2786 if (saved_phy_bits != et_entry->phy_bits) 2787 update_phy_bits = 1; 2788 if (et_entry->missing_count || update_phy_bits) { 2789 et_entry->missing_count = 0; 2790 if (sc->is_dpm_enable && 2791 et_entry->dpm_entry_num != 2792 MPR_DPM_BAD_IDX) { 2793 dpm_entry += et_entry->dpm_entry_num; 2794 missing_count = 2795 (u8)(dpm_entry->MappingInformation & 2796 MPI2_DRVMAP0_MAPINFO_MISSING_MASK); 2797 if (missing_count || update_phy_bits) { 2798 dpm_entry->MappingInformation 2799 = et_entry->num_slots; 2800 dpm_entry->MappingInformation 2801 <<= map_shift; 2802 dpm_entry->PhysicalBitsMapping 2803 = et_entry->phy_bits; 2804 sc->dpm_flush_entry[et_entry-> 2805 dpm_entry_num] = 1; 2806 } 2807 } 2808 } 2809 } else { 2810 /* 2811 * This is a new enclosure that is being added. 2812 * Initialize the Enclosure Table entry. It will be 2813 * finalized when a device is added for the enclosure 2814 * and the enclosure has enough space in the Mapping 2815 * Table to map its devices. 2816 */ 2817 enc_idx = sc->num_enc_table_entries; 2818 if (enc_idx >= sc->max_enclosures) { 2819 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2820 "Enclosure cannot be added to mapping " 2821 "table because it's full.\n", __func__); 2822 goto out; 2823 } 2824 sc->num_enc_table_entries++; 2825 et_entry = &sc->enclosure_table[enc_idx]; 2826 et_entry->enc_handle = le16toh(event_data-> 2827 EnclosureHandle); 2828 et_entry->enclosure_id = le64toh(event_data-> 2829 EnclosureLogicalID.High); 2830 et_entry->enclosure_id = 2831 ((et_entry->enclosure_id << 32) | 2832 le64toh(event_data->EnclosureLogicalID.Low)); 2833 et_entry->start_index = MPR_MAPTABLE_BAD_IDX; 2834 et_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 2835 et_entry->num_slots = le16toh(event_data->NumSlots); 2836 et_entry->start_slot = le16toh(event_data->StartSlot); 2837 et_entry->phy_bits = le32toh(event_data->PhyBits); 2838 } 2839 et_entry->init_complete = 1; 2840 } else if (event_data->ReasonCode == 2841 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) { 2842 /* 2843 * An enclosure was removed. Update its missing count and then 2844 * update the DPM entry with the new missing count for the 2845 * enclosure. 2846 */ 2847 enc_idx = _mapping_get_enc_idx_from_handle(sc, 2848 le16toh(event_data->EnclosureHandle)); 2849 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2850 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Cannot " 2851 "unmap enclosure %d because it has already been " 2852 "deleted.\n", __func__, enc_idx); 2853 goto out; 2854 } 2855 et_entry = &sc->enclosure_table[enc_idx]; 2856 if (et_entry->missing_count < MPR_MAX_MISSING_COUNT) 2857 et_entry->missing_count++; 2858 if (sc->is_dpm_enable && 2859 et_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2860 dpm_entry += et_entry->dpm_entry_num; 2861 dpm_entry->MappingInformation = et_entry->num_slots; 2862 dpm_entry->MappingInformation <<= map_shift; 2863 dpm_entry->MappingInformation |= 2864 et_entry->missing_count; 2865 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1; 2866 } 2867 et_entry->init_complete = 1; 2868 } 2869 2870 out: 2871 _mapping_flush_dpm_pages(sc); 2872 if (sc->pending_map_events) 2873 sc->pending_map_events--; 2874 } 2875 2876 /** 2877 * mpr_mapping_topology_change_event - handle topology change events 2878 * @sc: per adapter object 2879 * @event_data: event data payload 2880 * 2881 * Returns nothing. 2882 */ 2883 void 2884 mpr_mapping_topology_change_event(struct mpr_softc *sc, 2885 Mpi2EventDataSasTopologyChangeList_t *event_data) 2886 { 2887 struct _map_topology_change topo_change; 2888 struct _map_phy_change *phy_change; 2889 Mpi2EventSasTopoPhyEntry_t *event_phy_change; 2890 u8 i, num_entries; 2891 2892 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2893 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle); 2894 num_entries = event_data->NumEntries; 2895 topo_change.num_entries = num_entries; 2896 topo_change.start_phy_num = event_data->StartPhyNum; 2897 topo_change.num_phys = event_data->NumPhys; 2898 topo_change.exp_status = event_data->ExpStatus; 2899 event_phy_change = event_data->PHY; 2900 topo_change.phy_details = NULL; 2901 2902 if (!num_entries) 2903 goto out; 2904 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries, 2905 M_MPR, M_NOWAIT|M_ZERO); 2906 topo_change.phy_details = phy_change; 2907 if (!phy_change) 2908 goto out; 2909 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) { 2910 phy_change->dev_handle = le16toh(event_phy_change-> 2911 AttachedDevHandle); 2912 phy_change->reason = event_phy_change->PhyStatus & 2913 MPI2_EVENT_SAS_TOPO_RC_MASK; 2914 } 2915 _mapping_update_missing_count(sc, &topo_change); 2916 _mapping_get_dev_info(sc, &topo_change); 2917 _mapping_clear_removed_entries(sc); 2918 _mapping_add_new_device(sc, &topo_change); 2919 2920 out: 2921 free(topo_change.phy_details, M_MPR); 2922 _mapping_flush_dpm_pages(sc); 2923 if (sc->pending_map_events) 2924 sc->pending_map_events--; 2925 } 2926 2927 /** 2928 * mpr_mapping_pcie_topology_change_event - handle PCIe topology change events 2929 * @sc: per adapter object 2930 * @event_data: event data payload 2931 * 2932 * Returns nothing. 2933 */ 2934 void 2935 mpr_mapping_pcie_topology_change_event(struct mpr_softc *sc, 2936 Mpi26EventDataPCIeTopologyChangeList_t *event_data) 2937 { 2938 struct _map_pcie_topology_change topo_change; 2939 struct _map_port_change *port_change; 2940 Mpi26EventPCIeTopoPortEntry_t *event_port_change; 2941 u8 i, num_entries; 2942 2943 topo_change.switch_dev_handle = le16toh(event_data->SwitchDevHandle); 2944 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2945 num_entries = event_data->NumEntries; 2946 topo_change.num_entries = num_entries; 2947 topo_change.start_port_num = event_data->StartPortNum; 2948 topo_change.num_ports = event_data->NumPorts; 2949 topo_change.switch_status = event_data->SwitchStatus; 2950 event_port_change = event_data->PortEntry; 2951 topo_change.port_details = NULL; 2952 2953 if (!num_entries) 2954 goto out; 2955 port_change = malloc(sizeof(struct _map_port_change) * num_entries, 2956 M_MPR, M_NOWAIT|M_ZERO); 2957 topo_change.port_details = port_change; 2958 if (!port_change) 2959 goto out; 2960 for (i = 0; i < num_entries; i++, event_port_change++, port_change++) { 2961 port_change->dev_handle = le16toh(event_port_change-> 2962 AttachedDevHandle); 2963 port_change->reason = event_port_change->PortStatus; 2964 } 2965 _mapping_update_pcie_missing_count(sc, &topo_change); 2966 _mapping_get_pcie_dev_info(sc, &topo_change); 2967 _mapping_clear_removed_entries(sc); 2968 _mapping_add_new_pcie_device(sc, &topo_change); 2969 2970 out: 2971 free(topo_change.port_details, M_MPR); 2972 _mapping_flush_dpm_pages(sc); 2973 if (sc->pending_map_events) 2974 sc->pending_map_events--; 2975 } 2976 2977 /** 2978 * mpr_mapping_ir_config_change_event - handle IR config change list events 2979 * @sc: per adapter object 2980 * @event_data: event data payload 2981 * 2982 * Returns nothing. 2983 */ 2984 void 2985 mpr_mapping_ir_config_change_event(struct mpr_softc *sc, 2986 Mpi2EventDataIrConfigChangeList_t *event_data) 2987 { 2988 Mpi2EventIrConfigElement_t *element; 2989 int i; 2990 u64 *wwid_table; 2991 u32 map_idx, flags; 2992 struct dev_mapping_table *mt_entry; 2993 u16 element_flags; 2994 2995 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPR, 2996 M_NOWAIT | M_ZERO); 2997 if (!wwid_table) 2998 goto out; 2999 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3000 flags = le32toh(event_data->Flags); 3001 3002 /* 3003 * For volume changes, get the WWID for the volume and put it in a 3004 * table to be used in the processing of the IR change event. 3005 */ 3006 for (i = 0; i < event_data->NumElements; i++, element++) { 3007 element_flags = le16toh(element->ElementFlags); 3008 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) && 3009 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) && 3010 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE) 3011 && (element->ReasonCode != 3012 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) 3013 continue; 3014 if ((element_flags & 3015 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) == 3016 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) { 3017 mpr_config_get_volume_wwid(sc, 3018 le16toh(element->VolDevHandle), &wwid_table[i]); 3019 } 3020 } 3021 3022 /* 3023 * Check the ReasonCode for each element in the IR event and Add/Remove 3024 * Volumes or Physical Disks of Volumes to/from the mapping table. Use 3025 * the WWIDs gotten above in wwid_table. 3026 */ 3027 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3028 goto out; 3029 else { 3030 element = (Mpi2EventIrConfigElement_t *)&event_data-> 3031 ConfigElement[0]; 3032 for (i = 0; i < event_data->NumElements; i++, element++) { 3033 if (element->ReasonCode == 3034 MPI2_EVENT_IR_CHANGE_RC_ADDED || 3035 element->ReasonCode == 3036 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) { 3037 map_idx = _mapping_get_ir_mt_idx_from_wwid 3038 (sc, wwid_table[i]); 3039 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 3040 /* 3041 * The volume is already in the mapping 3042 * table. Just update it's info. 3043 */ 3044 mt_entry = &sc->mapping_table[map_idx]; 3045 mt_entry->id = map_idx; 3046 mt_entry->dev_handle = le16toh 3047 (element->VolDevHandle); 3048 mt_entry->device_info = 3049 MPR_DEV_RESERVED | MPR_MAP_IN_USE; 3050 _mapping_update_ir_missing_cnt(sc, 3051 map_idx, element, wwid_table[i]); 3052 continue; 3053 } 3054 3055 /* 3056 * Volume is not in mapping table yet. Find a 3057 * free entry in the mapping table at the 3058 * volume mapping locations. If no entries are 3059 * available, this is an error because it means 3060 * there are more volumes than can be mapped 3061 * and that should never happen for volumes. 3062 */ 3063 map_idx = _mapping_get_free_ir_mt_idx(sc); 3064 if (map_idx == MPR_MAPTABLE_BAD_IDX) 3065 { 3066 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 3067 "%s: failed to add the volume with " 3068 "handle 0x%04x because there is no " 3069 "free space available in the " 3070 "mapping table\n", __func__, 3071 le16toh(element->VolDevHandle)); 3072 continue; 3073 } 3074 mt_entry = &sc->mapping_table[map_idx]; 3075 mt_entry->physical_id = wwid_table[i]; 3076 mt_entry->id = map_idx; 3077 mt_entry->dev_handle = le16toh(element-> 3078 VolDevHandle); 3079 mt_entry->device_info = MPR_DEV_RESERVED | 3080 MPR_MAP_IN_USE; 3081 _mapping_update_ir_missing_cnt(sc, map_idx, 3082 element, wwid_table[i]); 3083 } else if (element->ReasonCode == 3084 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 3085 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc, 3086 wwid_table[i]); 3087 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3088 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3089 "to remove a volume because it has " 3090 "already been removed.\n", 3091 __func__); 3092 continue; 3093 } 3094 _mapping_update_ir_missing_cnt(sc, map_idx, 3095 element, wwid_table[i]); 3096 } else if (element->ReasonCode == 3097 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 3098 map_idx = _mapping_get_mt_idx_from_handle(sc, 3099 le16toh(element->VolDevHandle)); 3100 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3101 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3102 "to remove volume with handle " 3103 "0x%04x because it has already " 3104 "been removed.\n", __func__, 3105 le16toh(element->VolDevHandle)); 3106 continue; 3107 } 3108 mt_entry = &sc->mapping_table[map_idx]; 3109 _mapping_update_ir_missing_cnt(sc, map_idx, 3110 element, mt_entry->physical_id); 3111 } 3112 } 3113 } 3114 3115 out: 3116 _mapping_flush_dpm_pages(sc); 3117 free(wwid_table, M_MPR); 3118 if (sc->pending_map_events) 3119 sc->pending_map_events--; 3120 } 3121