1/*- 2 * Copyright (c) 2011-2015 LSI Corp. 3 * Copyright (c) 2013-2016 Avago Technologies 4 * Copyright 2000-2020 Broadcom Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * Broadcom Inc. (LSI) MPT-Fusion Host Adapter FreeBSD 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD$"); 33 34/* TODO Move headers to mprvar */ 35#include <sys/types.h> 36#include <sys/param.h> 37#include <sys/lock.h> 38#include <sys/mutex.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/malloc.h> 42#include <sys/kthread.h> 43#include <sys/taskqueue.h> 44#include <sys/bus.h> 45#include <sys/endian.h> 46#include <sys/sysctl.h> 47#include <sys/eventhandler.h> 48#include <sys/uio.h> 49#include <machine/bus.h> 50#include <machine/resource.h> 51#include <dev/mpr/mpi/mpi2_type.h> 52#include <dev/mpr/mpi/mpi2.h> 53#include <dev/mpr/mpi/mpi2_ioc.h> 54#include <dev/mpr/mpi/mpi2_sas.h> 55#include <dev/mpr/mpi/mpi2_pci.h> 56#include <dev/mpr/mpi/mpi2_cnfg.h> 57#include <dev/mpr/mpi/mpi2_init.h> 58#include <dev/mpr/mpi/mpi2_tool.h> 59#include <dev/mpr/mpr_ioctl.h> 60#include <dev/mpr/mprvar.h> 61#include <dev/mpr/mpr_mapping.h> 62 63/** 64 * _mapping_clear_map_entry - Clear a particular mapping entry. 65 * @map_entry: map table entry 66 * 67 * Returns nothing. 68 */ 69static inline void 70_mapping_clear_map_entry(struct dev_mapping_table *map_entry) 71{ 72 map_entry->physical_id = 0; 73 map_entry->device_info = 0; 74 map_entry->phy_bits = 0; 75 map_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 76 map_entry->dev_handle = 0; 77 map_entry->id = -1; 78 map_entry->missing_count = 0; 79 map_entry->init_complete = 0; 80 map_entry->TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; 81} 82 83/** 84 * _mapping_clear_enc_entry - Clear a particular enclosure table entry. 85 * @enc_entry: enclosure table entry 86 * 87 * Returns nothing. 88 */ 89static inline void 90_mapping_clear_enc_entry(struct enc_mapping_table *enc_entry) 91{ 92 enc_entry->enclosure_id = 0; 93 enc_entry->start_index = MPR_MAPTABLE_BAD_IDX; 94 enc_entry->phy_bits = 0; 95 enc_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 96 enc_entry->enc_handle = 0; 97 enc_entry->num_slots = 0; 98 enc_entry->start_slot = 0; 99 enc_entry->missing_count = 0; 100 enc_entry->removal_flag = 0; 101 enc_entry->skip_search = 0; 102 enc_entry->init_complete = 0; 103} 104 105/** 106 * _mapping_commit_enc_entry - write a particular enc entry in DPM page0. 107 * @sc: per adapter object 108 * @enc_entry: enclosure table entry 109 * 110 * Returns 0 for success, non-zero for failure. 111 */ 112static int 113_mapping_commit_enc_entry(struct mpr_softc *sc, 114 struct enc_mapping_table *et_entry) 115{ 116 Mpi2DriverMap0Entry_t *dpm_entry; 117 struct dev_mapping_table *mt_entry; 118 Mpi2ConfigReply_t mpi_reply; 119 Mpi2DriverMappingPage0_t config_page; 120 121 if (!sc->is_dpm_enable) 122 return 0; 123 124 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 125 memcpy(&config_page.Header, (u8 *) sc->dpm_pg0, 126 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 127 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 128 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 129 dpm_entry += et_entry->dpm_entry_num; 130 dpm_entry->PhysicalIdentifier.Low = 131 ( 0xFFFFFFFF & et_entry->enclosure_id); 132 dpm_entry->PhysicalIdentifier.High = 133 ( et_entry->enclosure_id >> 32); 134 mt_entry = &sc->mapping_table[et_entry->start_index]; 135 dpm_entry->DeviceIndex = htole16(mt_entry->id); 136 dpm_entry->MappingInformation = et_entry->num_slots; 137 dpm_entry->MappingInformation <<= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 138 dpm_entry->MappingInformation |= et_entry->missing_count; 139 dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation); 140 dpm_entry->PhysicalBitsMapping = htole32(et_entry->phy_bits); 141 dpm_entry->Reserved1 = 0; 142 143 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for enclosure.\n", 144 __func__, et_entry->dpm_entry_num); 145 memcpy(&config_page.Entry, (u8 *)dpm_entry, 146 sizeof(Mpi2DriverMap0Entry_t)); 147 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 148 et_entry->dpm_entry_num)) { 149 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM " 150 "entry %d for enclosure failed.\n", __func__, 151 et_entry->dpm_entry_num); 152 dpm_entry->MappingInformation = le16toh(dpm_entry-> 153 MappingInformation); 154 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 155 dpm_entry->PhysicalBitsMapping = 156 le32toh(dpm_entry->PhysicalBitsMapping); 157 return -1; 158 } 159 dpm_entry->MappingInformation = le16toh(dpm_entry-> 160 MappingInformation); 161 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 162 dpm_entry->PhysicalBitsMapping = 163 le32toh(dpm_entry->PhysicalBitsMapping); 164 return 0; 165} 166 167/** 168 * _mapping_commit_map_entry - write a particular map table entry in DPM page0. 169 * @sc: per adapter object 170 * @mt_entry: mapping table entry 171 * 172 * Returns 0 for success, non-zero for failure. 173 */ 174 175static int 176_mapping_commit_map_entry(struct mpr_softc *sc, 177 struct dev_mapping_table *mt_entry) 178{ 179 Mpi2DriverMap0Entry_t *dpm_entry; 180 Mpi2ConfigReply_t mpi_reply; 181 Mpi2DriverMappingPage0_t config_page; 182 183 if (!sc->is_dpm_enable) 184 return 0; 185 186 /* 187 * It's possible that this Map Entry points to a BAD DPM index. This 188 * can happen if the Map Entry is a for a missing device and the DPM 189 * entry that was being used by this device is now being used by some 190 * new device. So, check for a BAD DPM index and just return if so. 191 */ 192 if (mt_entry->dpm_entry_num == MPR_DPM_BAD_IDX) { 193 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry location for target " 194 "%d is invalid. DPM will not be written.\n", __func__, 195 mt_entry->id); 196 return 0; 197 } 198 199 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 200 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 201 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 202 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *) sc->dpm_pg0 + 203 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 204 dpm_entry = dpm_entry + mt_entry->dpm_entry_num; 205 dpm_entry->PhysicalIdentifier.Low = (0xFFFFFFFF & 206 mt_entry->physical_id); 207 dpm_entry->PhysicalIdentifier.High = (mt_entry->physical_id >> 32); 208 dpm_entry->DeviceIndex = htole16(mt_entry->id); 209 dpm_entry->MappingInformation = htole16(mt_entry->missing_count); 210 dpm_entry->PhysicalBitsMapping = 0; 211 dpm_entry->Reserved1 = 0; 212 memcpy(&config_page.Entry, (u8 *)dpm_entry, 213 sizeof(Mpi2DriverMap0Entry_t)); 214 215 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for target %d.\n", 216 __func__, mt_entry->dpm_entry_num, mt_entry->id); 217 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 218 mt_entry->dpm_entry_num)) { 219 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM " 220 "entry %d for target %d failed.\n", __func__, 221 mt_entry->dpm_entry_num, mt_entry->id); 222 dpm_entry->MappingInformation = le16toh(dpm_entry-> 223 MappingInformation); 224 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 225 return -1; 226 } 227 228 dpm_entry->MappingInformation = le16toh(dpm_entry->MappingInformation); 229 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 230 return 0; 231} 232 233/** 234 * _mapping_get_ir_maprange - get start and end index for IR map range. 235 * @sc: per adapter object 236 * @start_idx: place holder for start index 237 * @end_idx: place holder for end index 238 * 239 * The IR volumes can be mapped either at start or end of the mapping table 240 * this function gets the detail of where IR volume mapping starts and ends 241 * in the device mapping table 242 * 243 * Returns nothing. 244 */ 245static void 246_mapping_get_ir_maprange(struct mpr_softc *sc, u32 *start_idx, u32 *end_idx) 247{ 248 u16 volume_mapping_flags; 249 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 250 251 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 252 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 253 if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) { 254 *start_idx = 0; 255 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 256 *start_idx = 1; 257 } else 258 *start_idx = sc->max_devices - sc->max_volumes; 259 *end_idx = *start_idx + sc->max_volumes - 1; 260} 261 262/** 263 * _mapping_get_enc_idx_from_id - get enclosure index from enclosure ID 264 * @sc: per adapter object 265 * @enc_id: enclosure logical identifier 266 * 267 * Returns the index of enclosure entry on success or bad index. 268 */ 269static u8 270_mapping_get_enc_idx_from_id(struct mpr_softc *sc, u64 enc_id, 271 u64 phy_bits) 272{ 273 struct enc_mapping_table *et_entry; 274 u8 enc_idx = 0; 275 276 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 277 et_entry = &sc->enclosure_table[enc_idx]; 278 if ((et_entry->enclosure_id == le64toh(enc_id)) && 279 (!et_entry->phy_bits || (et_entry->phy_bits & 280 le32toh(phy_bits)))) 281 return enc_idx; 282 } 283 return MPR_ENCTABLE_BAD_IDX; 284} 285 286/** 287 * _mapping_get_enc_idx_from_handle - get enclosure index from handle 288 * @sc: per adapter object 289 * @enc_id: enclosure handle 290 * 291 * Returns the index of enclosure entry on success or bad index. 292 */ 293static u8 294_mapping_get_enc_idx_from_handle(struct mpr_softc *sc, u16 handle) 295{ 296 struct enc_mapping_table *et_entry; 297 u8 enc_idx = 0; 298 299 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 300 et_entry = &sc->enclosure_table[enc_idx]; 301 if (et_entry->missing_count) 302 continue; 303 if (et_entry->enc_handle == handle) 304 return enc_idx; 305 } 306 return MPR_ENCTABLE_BAD_IDX; 307} 308 309/** 310 * _mapping_get_high_missing_et_idx - get missing enclosure index 311 * @sc: per adapter object 312 * 313 * Search through the enclosure table and identifies the enclosure entry 314 * with high missing count and returns it's index 315 * 316 * Returns the index of enclosure entry on success or bad index. 317 */ 318static u8 319_mapping_get_high_missing_et_idx(struct mpr_softc *sc) 320{ 321 struct enc_mapping_table *et_entry; 322 u8 high_missing_count = 0; 323 u8 enc_idx, high_idx = MPR_ENCTABLE_BAD_IDX; 324 325 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) { 326 et_entry = &sc->enclosure_table[enc_idx]; 327 if ((et_entry->missing_count > high_missing_count) && 328 !et_entry->skip_search) { 329 high_missing_count = et_entry->missing_count; 330 high_idx = enc_idx; 331 } 332 } 333 return high_idx; 334} 335 336/** 337 * _mapping_get_high_missing_mt_idx - get missing map table index 338 * @sc: per adapter object 339 * 340 * Search through the map table and identifies the device entry 341 * with high missing count and returns it's index 342 * 343 * Returns the index of map table entry on success or bad index. 344 */ 345static u32 346_mapping_get_high_missing_mt_idx(struct mpr_softc *sc) 347{ 348 u32 map_idx, high_idx = MPR_MAPTABLE_BAD_IDX; 349 u8 high_missing_count = 0; 350 u32 start_idx, end_idx, start_idx_ir, end_idx_ir; 351 struct dev_mapping_table *mt_entry; 352 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 353 354 start_idx = 0; 355 start_idx_ir = 0; 356 end_idx_ir = 0; 357 end_idx = sc->max_devices; 358 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 359 start_idx = 1; 360 if (sc->ir_firmware) { 361 _mapping_get_ir_maprange(sc, &start_idx_ir, &end_idx_ir); 362 if (start_idx == start_idx_ir) 363 start_idx = end_idx_ir + 1; 364 else 365 end_idx = start_idx_ir; 366 } 367 mt_entry = &sc->mapping_table[start_idx]; 368 for (map_idx = start_idx; map_idx < end_idx; map_idx++, mt_entry++) { 369 if (mt_entry->missing_count > high_missing_count) { 370 high_missing_count = mt_entry->missing_count; 371 high_idx = map_idx; 372 } 373 } 374 return high_idx; 375} 376 377/** 378 * _mapping_get_ir_mt_idx_from_wwid - get map table index from volume WWID 379 * @sc: per adapter object 380 * @wwid: world wide unique ID of the volume 381 * 382 * Returns the index of map table entry on success or bad index. 383 */ 384static u32 385_mapping_get_ir_mt_idx_from_wwid(struct mpr_softc *sc, u64 wwid) 386{ 387 u32 start_idx, end_idx, map_idx; 388 struct dev_mapping_table *mt_entry; 389 390 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 391 mt_entry = &sc->mapping_table[start_idx]; 392 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 393 if (mt_entry->physical_id == wwid) 394 return map_idx; 395 396 return MPR_MAPTABLE_BAD_IDX; 397} 398 399/** 400 * _mapping_get_mt_idx_from_id - get map table index from a device ID 401 * @sc: per adapter object 402 * @dev_id: device identifer (SAS Address) 403 * 404 * Returns the index of map table entry on success or bad index. 405 */ 406static u32 407_mapping_get_mt_idx_from_id(struct mpr_softc *sc, u64 dev_id) 408{ 409 u32 map_idx; 410 struct dev_mapping_table *mt_entry; 411 412 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 413 mt_entry = &sc->mapping_table[map_idx]; 414 if (mt_entry->physical_id == dev_id) 415 return map_idx; 416 } 417 return MPR_MAPTABLE_BAD_IDX; 418} 419 420/** 421 * _mapping_get_ir_mt_idx_from_handle - get map table index from volume handle 422 * @sc: per adapter object 423 * @wwid: volume device handle 424 * 425 * Returns the index of map table entry on success or bad index. 426 */ 427static u32 428_mapping_get_ir_mt_idx_from_handle(struct mpr_softc *sc, u16 volHandle) 429{ 430 u32 start_idx, end_idx, map_idx; 431 struct dev_mapping_table *mt_entry; 432 433 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 434 mt_entry = &sc->mapping_table[start_idx]; 435 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) 436 if (mt_entry->dev_handle == volHandle) 437 return map_idx; 438 439 return MPR_MAPTABLE_BAD_IDX; 440} 441 442/** 443 * _mapping_get_mt_idx_from_handle - get map table index from handle 444 * @sc: per adapter object 445 * @dev_id: device handle 446 * 447 * Returns the index of map table entry on success or bad index. 448 */ 449static u32 450_mapping_get_mt_idx_from_handle(struct mpr_softc *sc, u16 handle) 451{ 452 u32 map_idx; 453 struct dev_mapping_table *mt_entry; 454 455 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 456 mt_entry = &sc->mapping_table[map_idx]; 457 if (mt_entry->dev_handle == handle) 458 return map_idx; 459 } 460 return MPR_MAPTABLE_BAD_IDX; 461} 462 463/** 464 * _mapping_get_free_ir_mt_idx - get first free index for a volume 465 * @sc: per adapter object 466 * 467 * Search through mapping table for free index for a volume and if no free 468 * index then looks for a volume with high mapping index 469 * 470 * Returns the index of map table entry on success or bad index. 471 */ 472static u32 473_mapping_get_free_ir_mt_idx(struct mpr_softc *sc) 474{ 475 u8 high_missing_count = 0; 476 u32 start_idx, end_idx, map_idx; 477 u32 high_idx = MPR_MAPTABLE_BAD_IDX; 478 struct dev_mapping_table *mt_entry; 479 480 /* 481 * The IN_USE flag should be clear if the entry is available to use. 482 * This flag is cleared on initialization and and when a volume is 483 * deleted. All other times this flag should be set. If, for some 484 * reason, a free entry cannot be found, look for the entry with the 485 * highest missing count just in case there is one. 486 */ 487 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 488 mt_entry = &sc->mapping_table[start_idx]; 489 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 490 if (!(mt_entry->device_info & MPR_MAP_IN_USE)) 491 return map_idx; 492 493 if (mt_entry->missing_count > high_missing_count) { 494 high_missing_count = mt_entry->missing_count; 495 high_idx = map_idx; 496 } 497 } 498 499 if (high_idx == MPR_MAPTABLE_BAD_IDX) { 500 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Could not find a " 501 "free entry in the mapping table for a Volume. The mapping " 502 "table is probably corrupt.\n", __func__); 503 } 504 505 return high_idx; 506} 507 508/** 509 * _mapping_get_free_mt_idx - get first free index for a device 510 * @sc: per adapter object 511 * @start_idx: offset in the table to start search 512 * 513 * Returns the index of map table entry on success or bad index. 514 */ 515static u32 516_mapping_get_free_mt_idx(struct mpr_softc *sc, u32 start_idx) 517{ 518 u32 map_idx, max_idx = sc->max_devices; 519 struct dev_mapping_table *mt_entry = &sc->mapping_table[start_idx]; 520 u16 volume_mapping_flags; 521 522 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 523 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 524 if (sc->ir_firmware && (volume_mapping_flags == 525 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) 526 max_idx -= sc->max_volumes; 527 528 for (map_idx = start_idx; map_idx < max_idx; map_idx++, mt_entry++) 529 if (!(mt_entry->device_info & (MPR_MAP_IN_USE | 530 MPR_DEV_RESERVED))) 531 return map_idx; 532 533 return MPR_MAPTABLE_BAD_IDX; 534} 535 536/** 537 * _mapping_get_dpm_idx_from_id - get DPM index from ID 538 * @sc: per adapter object 539 * @id: volume WWID or enclosure ID or device ID 540 * 541 * Returns the index of DPM entry on success or bad index. 542 */ 543static u16 544_mapping_get_dpm_idx_from_id(struct mpr_softc *sc, u64 id, u32 phy_bits) 545{ 546 u16 entry_num; 547 uint64_t PhysicalIdentifier; 548 Mpi2DriverMap0Entry_t *dpm_entry; 549 550 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 551 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 552 PhysicalIdentifier = dpm_entry->PhysicalIdentifier.High; 553 PhysicalIdentifier = (PhysicalIdentifier << 32) | 554 dpm_entry->PhysicalIdentifier.Low; 555 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 556 dpm_entry++) 557 if ((id == PhysicalIdentifier) && 558 (!phy_bits || !dpm_entry->PhysicalBitsMapping || 559 (phy_bits & dpm_entry->PhysicalBitsMapping))) 560 return entry_num; 561 562 return MPR_DPM_BAD_IDX; 563} 564 565 566/** 567 * _mapping_get_free_dpm_idx - get first available DPM index 568 * @sc: per adapter object 569 * 570 * Returns the index of DPM entry on success or bad index. 571 */ 572static u32 573_mapping_get_free_dpm_idx(struct mpr_softc *sc) 574{ 575 u16 entry_num; 576 Mpi2DriverMap0Entry_t *dpm_entry; 577 u16 current_entry = MPR_DPM_BAD_IDX, missing_cnt, high_missing_cnt = 0; 578 u64 physical_id; 579 struct dev_mapping_table *mt_entry; 580 u32 map_idx; 581 582 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 583 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 584 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 585 dpm_entry += entry_num; 586 missing_cnt = dpm_entry->MappingInformation & 587 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 588 589 /* 590 * If entry is used and not missing, then this entry can't be 591 * used. Look at next one. 592 */ 593 if (sc->dpm_entry_used[entry_num] && !missing_cnt) 594 continue; 595 596 /* 597 * If this entry is not used at all, then the missing count 598 * doesn't matter. Just use this one. Otherwise, keep looking 599 * and make sure the entry with the highest missing count is 600 * used. 601 */ 602 if (!sc->dpm_entry_used[entry_num]) { 603 current_entry = entry_num; 604 break; 605 } 606 if ((current_entry == MPR_DPM_BAD_IDX) || 607 (missing_cnt > high_missing_cnt)) { 608 current_entry = entry_num; 609 high_missing_cnt = missing_cnt; 610 } 611 } 612 613 /* 614 * If an entry has been found to use and it's already marked as used 615 * it means that some device was already using this entry but it's 616 * missing, and that means that the connection between the missing 617 * device's DPM entry and the mapping table needs to be cleared. To do 618 * this, use the Physical ID of the old device still in the DPM entry 619 * to find its mapping table entry, then mark its DPM entry as BAD. 620 */ 621 if ((current_entry != MPR_DPM_BAD_IDX) && 622 sc->dpm_entry_used[current_entry]) { 623 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 624 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 625 dpm_entry += current_entry; 626 physical_id = dpm_entry->PhysicalIdentifier.High; 627 physical_id = (physical_id << 32) | 628 dpm_entry->PhysicalIdentifier.Low; 629 map_idx = _mapping_get_mt_idx_from_id(sc, physical_id); 630 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 631 mt_entry = &sc->mapping_table[map_idx]; 632 mt_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 633 } 634 } 635 return current_entry; 636} 637 638/** 639 * _mapping_update_ir_missing_cnt - Updates missing count for a volume 640 * @sc: per adapter object 641 * @map_idx: map table index of the volume 642 * @element: IR configuration change element 643 * @wwid: IR volume ID. 644 * 645 * Updates the missing count in the map table and in the DPM entry for a volume 646 * 647 * Returns nothing. 648 */ 649static void 650_mapping_update_ir_missing_cnt(struct mpr_softc *sc, u32 map_idx, 651 Mpi2EventIrConfigElement_t *element, u64 wwid) 652{ 653 struct dev_mapping_table *mt_entry; 654 u8 missing_cnt, reason = element->ReasonCode, update_dpm = 1; 655 u16 dpm_idx; 656 Mpi2DriverMap0Entry_t *dpm_entry; 657 658 /* 659 * Depending on the reason code, update the missing count. Always set 660 * the init_complete flag when here, so just do it first. That flag is 661 * used for volumes to make sure that the DPM entry has been updated. 662 * When a volume is deleted, clear the map entry's IN_USE flag so that 663 * the entry can be used again if another volume is created. Also clear 664 * its dev_handle entry so that other functions can't find this volume 665 * by the handle, since it's not defined any longer. 666 */ 667 mt_entry = &sc->mapping_table[map_idx]; 668 mt_entry->init_complete = 1; 669 if ((reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) || 670 (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) { 671 mt_entry->missing_count = 0; 672 } else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 673 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT) 674 mt_entry->missing_count++; 675 676 mt_entry->device_info &= ~MPR_MAP_IN_USE; 677 mt_entry->dev_handle = 0; 678 } 679 680 /* 681 * If persistent mapping is enabled, update the DPM with the new missing 682 * count for the volume. If the DPM index is bad, get a free one. If 683 * it's bad for a volume that's being deleted do nothing because that 684 * volume doesn't have a DPM entry. 685 */ 686 if (!sc->is_dpm_enable) 687 return; 688 dpm_idx = mt_entry->dpm_entry_num; 689 if (dpm_idx == MPR_DPM_BAD_IDX) { 690 if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) 691 { 692 mpr_dprint(sc, MPR_MAPPING, "%s: Volume being deleted " 693 "is not in DPM so DPM missing count will not be " 694 "updated.\n", __func__); 695 return; 696 } 697 } 698 if (dpm_idx == MPR_DPM_BAD_IDX) 699 dpm_idx = _mapping_get_free_dpm_idx(sc); 700 701 /* 702 * Got the DPM entry for the volume or found a free DPM entry if this is 703 * a new volume. Check if the current information is outdated. 704 */ 705 if (dpm_idx != MPR_DPM_BAD_IDX) { 706 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 707 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 708 dpm_entry += dpm_idx; 709 missing_cnt = dpm_entry->MappingInformation & 710 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 711 if ((mt_entry->physical_id == 712 le64toh(((u64)dpm_entry->PhysicalIdentifier.High << 32) | 713 (u64)dpm_entry->PhysicalIdentifier.Low)) && (missing_cnt == 714 mt_entry->missing_count)) { 715 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry for volume " 716 "with target ID %d does not require an update.\n", 717 __func__, mt_entry->id); 718 update_dpm = 0; 719 } 720 } 721 722 /* 723 * Update the volume's persistent info if it's new or the ID or missing 724 * count has changed. If a good DPM index has not been found by now, 725 * there is no space left in the DPM table. 726 */ 727 if ((dpm_idx != MPR_DPM_BAD_IDX) && update_dpm) { 728 mpr_dprint(sc, MPR_MAPPING, "%s: Update DPM entry for volume " 729 "with target ID %d.\n", __func__, mt_entry->id); 730 mt_entry->dpm_entry_num = dpm_idx; 731 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 732 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 733 dpm_entry += dpm_idx; 734 dpm_entry->PhysicalIdentifier.Low = 735 (0xFFFFFFFF & mt_entry->physical_id); 736 dpm_entry->PhysicalIdentifier.High = 737 (mt_entry->physical_id >> 32); 738 dpm_entry->DeviceIndex = map_idx; 739 dpm_entry->MappingInformation = mt_entry->missing_count; 740 dpm_entry->PhysicalBitsMapping = 0; 741 dpm_entry->Reserved1 = 0; 742 sc->dpm_flush_entry[dpm_idx] = 1; 743 sc->dpm_entry_used[dpm_idx] = 1; 744 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 745 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: No space to add an " 746 "entry in the DPM table for volume with target ID %d.\n", 747 __func__, mt_entry->id); 748 } 749} 750 751/** 752 * _mapping_add_to_removal_table - add DPM index to the removal table 753 * @sc: per adapter object 754 * @dpm_idx: Index of DPM entry to remove 755 * 756 * Adds a DPM entry number to the removal table. 757 * 758 * Returns nothing. 759 */ 760static void 761_mapping_add_to_removal_table(struct mpr_softc *sc, u16 dpm_idx) 762{ 763 struct map_removal_table *remove_entry; 764 u32 i; 765 766 /* 767 * This is only used to remove entries from the DPM in the controller. 768 * If DPM is not enabled, just return. 769 */ 770 if (!sc->is_dpm_enable) 771 return; 772 773 /* 774 * Find the first available removal_table entry and add the new entry 775 * there. 776 */ 777 remove_entry = sc->removal_table; 778 for (i = 0; i < sc->max_devices; i++, remove_entry++) { 779 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) 780 continue; 781 782 mpr_dprint(sc, MPR_MAPPING, "%s: Adding DPM entry %d to table " 783 "for removal.\n", __func__, dpm_idx); 784 remove_entry->dpm_entry_num = dpm_idx; 785 break; 786 } 787 788} 789 790/** 791 * _mapping_inc_missing_count 792 * @sc: per adapter object 793 * @map_idx: index into the mapping table for the device that is missing 794 * 795 * Increment the missing count in the mapping table for a SAS, SATA, or PCIe 796 * device that is not responding. If Persitent Mapping is used, increment the 797 * DPM entry as well. Currently, this function is only called if the target 798 * goes missing, so after initialization has completed. This means that the 799 * missing count can only go from 0 to 1 here. The missing count is incremented 800 * during initialization as well, so that's where a target's missing count can 801 * go past 1. 802 * 803 * Returns nothing. 804 */ 805static void 806_mapping_inc_missing_count(struct mpr_softc *sc, u32 map_idx) 807{ 808 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 809 struct dev_mapping_table *mt_entry; 810 Mpi2DriverMap0Entry_t *dpm_entry; 811 812 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 813 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: device is already " 814 "removed from mapping table\n", __func__); 815 return; 816 } 817 mt_entry = &sc->mapping_table[map_idx]; 818 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT) 819 mt_entry->missing_count++; 820 821 /* 822 * When using Enc/Slot mapping, when a device is removed, it's mapping 823 * table information should be cleared. Otherwise, the target ID will 824 * be incorrect if this same device is re-added to a different slot. 825 */ 826 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 827 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 828 _mapping_clear_map_entry(mt_entry); 829 } 830 831 /* 832 * When using device mapping, update the missing count in the DPM entry, 833 * but only if the missing count has changed. 834 */ 835 if (((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 836 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) && 837 sc->is_dpm_enable && 838 mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 839 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 840 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 841 dpm_entry += mt_entry->dpm_entry_num; 842 if (dpm_entry->MappingInformation != mt_entry->missing_count) { 843 dpm_entry->MappingInformation = mt_entry->missing_count; 844 sc->dpm_flush_entry[mt_entry->dpm_entry_num] = 1; 845 } 846 } 847} 848 849/** 850 * _mapping_update_missing_count - Update missing count for a device 851 * @sc: per adapter object 852 * @topo_change: Topology change event entry 853 * 854 * Search through the topology change list and if any device is found not 855 * responding it's associated map table entry and DPM entry is updated 856 * 857 * Returns nothing. 858 */ 859static void 860_mapping_update_missing_count(struct mpr_softc *sc, 861 struct _map_topology_change *topo_change) 862{ 863 u8 entry; 864 struct _map_phy_change *phy_change; 865 u32 map_idx; 866 867 for (entry = 0; entry < topo_change->num_entries; entry++) { 868 phy_change = &topo_change->phy_details[entry]; 869 if (!phy_change->dev_handle || (phy_change->reason != 870 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)) 871 continue; 872 map_idx = _mapping_get_mt_idx_from_handle(sc, phy_change-> 873 dev_handle); 874 phy_change->is_processed = 1; 875 _mapping_inc_missing_count(sc, map_idx); 876 } 877} 878 879/** 880 * _mapping_update_pcie_missing_count - Update missing count for a PCIe device 881 * @sc: per adapter object 882 * @topo_change: Topology change event entry 883 * 884 * Search through the PCIe topology change list and if any device is found not 885 * responding it's associated map table entry and DPM entry is updated 886 * 887 * Returns nothing. 888 */ 889static void 890_mapping_update_pcie_missing_count(struct mpr_softc *sc, 891 struct _map_pcie_topology_change *topo_change) 892{ 893 u8 entry; 894 struct _map_port_change *port_change; 895 u32 map_idx; 896 897 for (entry = 0; entry < topo_change->num_entries; entry++) { 898 port_change = &topo_change->port_details[entry]; 899 if (!port_change->dev_handle || (port_change->reason != 900 MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING)) 901 continue; 902 map_idx = _mapping_get_mt_idx_from_handle(sc, port_change-> 903 dev_handle); 904 port_change->is_processed = 1; 905 _mapping_inc_missing_count(sc, map_idx); 906 } 907} 908 909/** 910 * _mapping_find_enc_map_space -find map table entries for enclosure 911 * @sc: per adapter object 912 * @et_entry: enclosure entry 913 * 914 * Search through the mapping table defragment it and provide contiguous 915 * space in map table for a particular enclosure entry 916 * 917 * Returns start index in map table or bad index. 918 */ 919static u32 920_mapping_find_enc_map_space(struct mpr_softc *sc, 921 struct enc_mapping_table *et_entry) 922{ 923 u16 vol_mapping_flags; 924 u32 skip_count, end_of_table, map_idx, enc_idx; 925 u16 num_found; 926 u32 start_idx = MPR_MAPTABLE_BAD_IDX; 927 struct dev_mapping_table *mt_entry; 928 struct enc_mapping_table *enc_entry; 929 unsigned char done_flag = 0, found_space; 930 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 931 932 skip_count = sc->num_rsvd_entries; 933 num_found = 0; 934 935 vol_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) & 936 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 937 938 /* 939 * The end of the mapping table depends on where volumes are kept, if 940 * IR is enabled. 941 */ 942 if (!sc->ir_firmware) 943 end_of_table = sc->max_devices; 944 else if (vol_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) 945 end_of_table = sc->max_devices; 946 else 947 end_of_table = sc->max_devices - sc->max_volumes; 948 949 /* 950 * The skip_count is the number of entries that are reserved at the 951 * beginning of the mapping table. But, it does not include the number 952 * of Physical IDs that are reserved for direct attached devices. Look 953 * through the mapping table after these reserved entries to see if 954 * the devices for this enclosure are already mapped. The PHY bit check 955 * is used to make sure that at least one PHY bit is common between the 956 * enclosure and the device that is already mapped. 957 */ 958 mpr_dprint(sc, MPR_MAPPING, "%s: Looking for space in the mapping " 959 "table for added enclosure.\n", __func__); 960 for (map_idx = (max_num_phy_ids + skip_count); 961 map_idx < end_of_table; map_idx++) { 962 mt_entry = &sc->mapping_table[map_idx]; 963 if ((et_entry->enclosure_id == mt_entry->physical_id) && 964 (!mt_entry->phy_bits || (mt_entry->phy_bits & 965 et_entry->phy_bits))) { 966 num_found += 1; 967 if (num_found == et_entry->num_slots) { 968 start_idx = (map_idx - num_found) + 1; 969 mpr_dprint(sc, MPR_MAPPING, "%s: Found space " 970 "in the mapping for enclosure at map index " 971 "%d.\n", __func__, start_idx); 972 return start_idx; 973 } 974 } else 975 num_found = 0; 976 } 977 978 /* 979 * If the enclosure's devices are not mapped already, look for 980 * contiguous entries in the mapping table that are not reserved. If 981 * enough entries are found, return the starting index for that space. 982 */ 983 num_found = 0; 984 for (map_idx = (max_num_phy_ids + skip_count); 985 map_idx < end_of_table; map_idx++) { 986 mt_entry = &sc->mapping_table[map_idx]; 987 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) { 988 num_found += 1; 989 if (num_found == et_entry->num_slots) { 990 start_idx = (map_idx - num_found) + 1; 991 mpr_dprint(sc, MPR_MAPPING, "%s: Found space " 992 "in the mapping for enclosure at map index " 993 "%d.\n", __func__, start_idx); 994 return start_idx; 995 } 996 } else 997 num_found = 0; 998 } 999 1000 /* 1001 * If here, it means that not enough space in the mapping table was 1002 * found to support this enclosure, so go through the enclosure table to 1003 * see if any enclosure entries have a missing count. If so, get the 1004 * enclosure with the highest missing count and check it to see if there 1005 * is enough space for the new enclosure. 1006 */ 1007 while (!done_flag) { 1008 enc_idx = _mapping_get_high_missing_et_idx(sc); 1009 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1010 mpr_dprint(sc, MPR_MAPPING, "%s: Not enough space was " 1011 "found in the mapping for the added enclosure.\n", 1012 __func__); 1013 return MPR_MAPTABLE_BAD_IDX; 1014 } 1015 1016 /* 1017 * Found a missing enclosure. Set the skip_search flag so this 1018 * enclosure is not checked again for a high missing count if 1019 * the loop continues. This way, all missing enclosures can 1020 * have their space added together to find enough space in the 1021 * mapping table for the added enclosure. The space must be 1022 * contiguous. 1023 */ 1024 mpr_dprint(sc, MPR_MAPPING, "%s: Space from a missing " 1025 "enclosure was found.\n", __func__); 1026 enc_entry = &sc->enclosure_table[enc_idx]; 1027 enc_entry->skip_search = 1; 1028 1029 /* 1030 * Unmark all of the missing enclosure's device's reserved 1031 * space. These will be remarked as reserved if this missing 1032 * enclosure's space is not used. 1033 */ 1034 mpr_dprint(sc, MPR_MAPPING, "%s: Clear the reserved flag for " 1035 "all of the map entries for the enclosure.\n", __func__); 1036 mt_entry = &sc->mapping_table[enc_entry->start_index]; 1037 for (map_idx = enc_entry->start_index; map_idx < 1038 (enc_entry->start_index + enc_entry->num_slots); map_idx++, 1039 mt_entry++) 1040 mt_entry->device_info &= ~MPR_DEV_RESERVED; 1041 1042 /* 1043 * Now that space has been unreserved, check again to see if 1044 * enough space is available for the new enclosure. 1045 */ 1046 mpr_dprint(sc, MPR_MAPPING, "%s: Check if new mapping space is " 1047 "enough for the new enclosure.\n", __func__); 1048 found_space = 0; 1049 num_found = 0; 1050 for (map_idx = (max_num_phy_ids + skip_count); 1051 map_idx < end_of_table; map_idx++) { 1052 mt_entry = &sc->mapping_table[map_idx]; 1053 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) { 1054 num_found += 1; 1055 if (num_found == et_entry->num_slots) { 1056 start_idx = (map_idx - num_found) + 1; 1057 found_space = 1; 1058 break; 1059 } 1060 } else 1061 num_found = 0; 1062 } 1063 if (!found_space) 1064 continue; 1065 1066 /* 1067 * If enough space was found, all of the missing enclosures that 1068 * will be used for the new enclosure must be added to the 1069 * removal table. Then all mappings for the enclosure's devices 1070 * and for the enclosure itself need to be cleared. There may be 1071 * more than one enclosure to add to the removal table and 1072 * clear. 1073 */ 1074 mpr_dprint(sc, MPR_MAPPING, "%s: Found space in the mapping " 1075 "for enclosure at map index %d.\n", __func__, start_idx); 1076 for (map_idx = start_idx; map_idx < (start_idx + num_found); 1077 map_idx++) { 1078 enc_entry = sc->enclosure_table; 1079 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1080 enc_idx++, enc_entry++) { 1081 if (map_idx < enc_entry->start_index || 1082 map_idx > (enc_entry->start_index + 1083 enc_entry->num_slots)) 1084 continue; 1085 if (!enc_entry->removal_flag) { 1086 mpr_dprint(sc, MPR_MAPPING, "%s: " 1087 "Enclosure %d will be removed from " 1088 "the mapping table.\n", __func__, 1089 enc_idx); 1090 enc_entry->removal_flag = 1; 1091 _mapping_add_to_removal_table(sc, 1092 enc_entry->dpm_entry_num); 1093 } 1094 mt_entry = &sc->mapping_table[map_idx]; 1095 _mapping_clear_map_entry(mt_entry); 1096 if (map_idx == (enc_entry->start_index + 1097 enc_entry->num_slots - 1)) 1098 _mapping_clear_enc_entry(et_entry); 1099 } 1100 } 1101 1102 /* 1103 * During the search for space for this enclosure, some entries 1104 * in the mapping table may have been unreserved. Go back and 1105 * change all of these to reserved again. Only the enclosures 1106 * with the removal_flag set should be left as unreserved. The 1107 * skip_search flag needs to be cleared as well so that the 1108 * enclosure's space will be looked at the next time space is 1109 * needed. 1110 */ 1111 enc_entry = sc->enclosure_table; 1112 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; 1113 enc_idx++, enc_entry++) { 1114 if (!enc_entry->removal_flag) { 1115 mpr_dprint(sc, MPR_MAPPING, "%s: Reset the " 1116 "reserved flag for all of the map entries " 1117 "for enclosure %d.\n", __func__, enc_idx); 1118 mt_entry = &sc->mapping_table[enc_entry-> 1119 start_index]; 1120 for (map_idx = enc_entry->start_index; map_idx < 1121 (enc_entry->start_index + 1122 enc_entry->num_slots); map_idx++, 1123 mt_entry++) 1124 mt_entry->device_info |= 1125 MPR_DEV_RESERVED; 1126 et_entry->skip_search = 0; 1127 } 1128 } 1129 done_flag = 1; 1130 } 1131 return start_idx; 1132} 1133 1134/** 1135 * _mapping_get_dev_info -get information about newly added devices 1136 * @sc: per adapter object 1137 * @topo_change: Topology change event entry 1138 * 1139 * Search through the topology change event list and issues sas device pg0 1140 * requests for the newly added device and reserved entries in tables 1141 * 1142 * Returns nothing 1143 */ 1144static void 1145_mapping_get_dev_info(struct mpr_softc *sc, 1146 struct _map_topology_change *topo_change) 1147{ 1148 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1149 Mpi2ConfigReply_t mpi_reply; 1150 Mpi2SasDevicePage0_t sas_device_pg0; 1151 u8 entry, enc_idx, phy_idx; 1152 u32 map_idx, index, device_info; 1153 struct _map_phy_change *phy_change, *tmp_phy_change; 1154 uint64_t sas_address; 1155 struct enc_mapping_table *et_entry; 1156 struct dev_mapping_table *mt_entry; 1157 u8 add_code = MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED; 1158 int rc = 1; 1159 1160 for (entry = 0; entry < topo_change->num_entries; entry++) { 1161 phy_change = &topo_change->phy_details[entry]; 1162 if (phy_change->is_processed || !phy_change->dev_handle || 1163 phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) 1164 continue; 1165 1166 if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, 1167 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 1168 phy_change->dev_handle)) { 1169 phy_change->is_processed = 1; 1170 continue; 1171 } 1172 1173 /* 1174 * Always get SATA Identify information because this is used 1175 * to determine if Start/Stop Unit should be sent to the drive 1176 * when the system is shutdown. 1177 */ 1178 device_info = le32toh(sas_device_pg0.DeviceInfo); 1179 sas_address = le32toh(sas_device_pg0.SASAddress.High); 1180 sas_address = (sas_address << 32) | 1181 le32toh(sas_device_pg0.SASAddress.Low); 1182 if ((device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1183 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)) { 1184 rc = mprsas_get_sas_address_for_sata_disk(sc, 1185 &sas_address, phy_change->dev_handle, device_info, 1186 &phy_change->is_SATA_SSD); 1187 if (rc) { 1188 mpr_dprint(sc, MPR_ERROR, "%s: failed to get " 1189 "disk type (SSD or HDD) and SAS Address " 1190 "for SATA device with handle 0x%04x\n", 1191 __func__, phy_change->dev_handle); 1192 } 1193 } 1194 1195 phy_change->physical_id = sas_address; 1196 phy_change->slot = le16toh(sas_device_pg0.Slot); 1197 phy_change->device_info = device_info; 1198 1199 /* 1200 * When using Enc/Slot mapping, if this device is an enclosure 1201 * make sure that all of its slots can fit into the mapping 1202 * table. 1203 */ 1204 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1205 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1206 /* 1207 * The enclosure should already be in the enclosure 1208 * table due to the Enclosure Add event. If not, just 1209 * continue, nothing can be done. 1210 */ 1211 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1212 topo_change->enc_handle); 1213 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1214 phy_change->is_processed = 1; 1215 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1216 "failed to add the device with handle " 1217 "0x%04x because the enclosure is not in " 1218 "the mapping table\n", __func__, 1219 phy_change->dev_handle); 1220 continue; 1221 } 1222 if (!((phy_change->device_info & 1223 MPI2_SAS_DEVICE_INFO_END_DEVICE) && 1224 (phy_change->device_info & 1225 (MPI2_SAS_DEVICE_INFO_SSP_TARGET | 1226 MPI2_SAS_DEVICE_INFO_STP_TARGET | 1227 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) { 1228 phy_change->is_processed = 1; 1229 continue; 1230 } 1231 et_entry = &sc->enclosure_table[enc_idx]; 1232 1233 /* 1234 * If the enclosure already has a start_index, it's been 1235 * mapped, so go to the next Topo change. 1236 */ 1237 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1238 continue; 1239 1240 /* 1241 * If the Expander Handle is 0, the devices are direct 1242 * attached. In that case, the start_index must be just 1243 * after the reserved entries. Otherwise, find space in 1244 * the mapping table for the enclosure's devices. 1245 */ 1246 if (!topo_change->exp_handle) { 1247 map_idx = sc->num_rsvd_entries; 1248 et_entry->start_index = map_idx; 1249 } else { 1250 map_idx = _mapping_find_enc_map_space(sc, 1251 et_entry); 1252 et_entry->start_index = map_idx; 1253 1254 /* 1255 * If space cannot be found to hold all of the 1256 * enclosure's devices in the mapping table, 1257 * there's no need to continue checking the 1258 * other devices in this event. Set all of the 1259 * phy_details for this event (if the change is 1260 * for an add) as already processed because none 1261 * of these devices can be added to the mapping 1262 * table. 1263 */ 1264 if (et_entry->start_index == 1265 MPR_MAPTABLE_BAD_IDX) { 1266 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1267 "%s: failed to add the enclosure " 1268 "with ID 0x%016jx because there is " 1269 "no free space available in the " 1270 "mapping table for all of the " 1271 "enclosure's devices.\n", __func__, 1272 (uintmax_t)et_entry->enclosure_id); 1273 phy_change->is_processed = 1; 1274 for (phy_idx = 0; phy_idx < 1275 topo_change->num_entries; 1276 phy_idx++) { 1277 tmp_phy_change = 1278 &topo_change->phy_details 1279 [phy_idx]; 1280 if (tmp_phy_change->reason == 1281 add_code) 1282 tmp_phy_change-> 1283 is_processed = 1; 1284 } 1285 break; 1286 } 1287 } 1288 1289 /* 1290 * Found space in the mapping table for this enclosure. 1291 * Initialize each mapping table entry for the 1292 * enclosure. 1293 */ 1294 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1295 "entries for the enclosure, starting at map index " 1296 " %d.\n", __func__, et_entry->num_slots, map_idx); 1297 mt_entry = &sc->mapping_table[map_idx]; 1298 for (index = map_idx; index < (et_entry->num_slots 1299 + map_idx); index++, mt_entry++) { 1300 mt_entry->device_info = MPR_DEV_RESERVED; 1301 mt_entry->physical_id = et_entry->enclosure_id; 1302 mt_entry->phy_bits = et_entry->phy_bits; 1303 mt_entry->missing_count = 0; 1304 } 1305 } 1306 } 1307} 1308 1309/** 1310 * _mapping_get_pcie_dev_info -get information about newly added PCIe devices 1311 * @sc: per adapter object 1312 * @topo_change: Topology change event entry 1313 * 1314 * Searches through the PCIe topology change event list and issues PCIe device 1315 * pg0 requests for the newly added PCIe device. If the device is in an 1316 * enclosure, search for available space in the enclosure mapping table for the 1317 * device and reserve that space. 1318 * 1319 * Returns nothing 1320 */ 1321static void 1322_mapping_get_pcie_dev_info(struct mpr_softc *sc, 1323 struct _map_pcie_topology_change *topo_change) 1324{ 1325 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1326 Mpi2ConfigReply_t mpi_reply; 1327 Mpi26PCIeDevicePage0_t pcie_device_pg0; 1328 u8 entry, enc_idx, port_idx; 1329 u32 map_idx, index; 1330 struct _map_port_change *port_change, *tmp_port_change; 1331 uint64_t pcie_wwid; 1332 struct enc_mapping_table *et_entry; 1333 struct dev_mapping_table *mt_entry; 1334 u8 add_code = MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED; 1335 1336 for (entry = 0; entry < topo_change->num_entries; entry++) { 1337 port_change = &topo_change->port_details[entry]; 1338 if (port_change->is_processed || !port_change->dev_handle || 1339 port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED) 1340 continue; 1341 if (mpr_config_get_pcie_device_pg0(sc, &mpi_reply, 1342 &pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, 1343 port_change->dev_handle)) { 1344 port_change->is_processed = 1; 1345 continue; 1346 } 1347 1348 pcie_wwid = pcie_device_pg0.WWID.High; 1349 pcie_wwid = (pcie_wwid << 32) | pcie_device_pg0.WWID.Low; 1350 port_change->physical_id = pcie_wwid; 1351 port_change->slot = le16toh(pcie_device_pg0.Slot); 1352 port_change->device_info = le32toh(pcie_device_pg0.DeviceInfo); 1353 1354 /* 1355 * When using Enc/Slot mapping, if this device is an enclosure 1356 * make sure that all of its slots can fit into the mapping 1357 * table. 1358 */ 1359 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1360 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1361 /* 1362 * The enclosure should already be in the enclosure 1363 * table due to the Enclosure Add event. If not, just 1364 * continue, nothing can be done. 1365 */ 1366 enc_idx = _mapping_get_enc_idx_from_handle(sc, 1367 topo_change->enc_handle); 1368 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1369 port_change->is_processed = 1; 1370 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1371 "failed to add the device with handle " 1372 "0x%04x because the enclosure is not in " 1373 "the mapping table\n", __func__, 1374 port_change->dev_handle); 1375 continue; 1376 } 1377 if (!(port_change->device_info & 1378 MPI26_PCIE_DEVINFO_NVME)) { 1379 port_change->is_processed = 1; 1380 continue; 1381 } 1382 et_entry = &sc->enclosure_table[enc_idx]; 1383 1384 /* 1385 * If the enclosure already has a start_index, it's been 1386 * mapped, so go to the next Topo change. 1387 */ 1388 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX) 1389 continue; 1390 1391 /* 1392 * If the Switch Handle is 0, the devices are direct 1393 * attached. In that case, the start_index must be just 1394 * after the reserved entries. Otherwise, find space in 1395 * the mapping table for the enclosure's devices. 1396 */ 1397 if (!topo_change->switch_dev_handle) { 1398 map_idx = sc->num_rsvd_entries; 1399 et_entry->start_index = map_idx; 1400 } else { 1401 map_idx = _mapping_find_enc_map_space(sc, 1402 et_entry); 1403 et_entry->start_index = map_idx; 1404 1405 /* 1406 * If space cannot be found to hold all of the 1407 * enclosure's devices in the mapping table, 1408 * there's no need to continue checking the 1409 * other devices in this event. Set all of the 1410 * port_details for this event (if the change is 1411 * for an add) as already processed because none 1412 * of these devices can be added to the mapping 1413 * table. 1414 */ 1415 if (et_entry->start_index == 1416 MPR_MAPTABLE_BAD_IDX) { 1417 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1418 "%s: failed to add the enclosure " 1419 "with ID 0x%016jx because there is " 1420 "no free space available in the " 1421 "mapping table for all of the " 1422 "enclosure's devices.\n", __func__, 1423 (uintmax_t)et_entry->enclosure_id); 1424 port_change->is_processed = 1; 1425 for (port_idx = 0; port_idx < 1426 topo_change->num_entries; 1427 port_idx++) { 1428 tmp_port_change = 1429 &topo_change->port_details 1430 [port_idx]; 1431 if (tmp_port_change->reason == 1432 add_code) 1433 tmp_port_change-> 1434 is_processed = 1; 1435 } 1436 break; 1437 } 1438 } 1439 1440 /* 1441 * Found space in the mapping table for this enclosure. 1442 * Initialize each mapping table entry for the 1443 * enclosure. 1444 */ 1445 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map " 1446 "entries for the enclosure, starting at map index " 1447 " %d.\n", __func__, et_entry->num_slots, map_idx); 1448 mt_entry = &sc->mapping_table[map_idx]; 1449 for (index = map_idx; index < (et_entry->num_slots 1450 + map_idx); index++, mt_entry++) { 1451 mt_entry->device_info = MPR_DEV_RESERVED; 1452 mt_entry->physical_id = et_entry->enclosure_id; 1453 mt_entry->phy_bits = et_entry->phy_bits; 1454 mt_entry->missing_count = 0; 1455 } 1456 } 1457 } 1458} 1459 1460/** 1461 * _mapping_set_mid_to_eid -set map table data from enclosure table 1462 * @sc: per adapter object 1463 * @et_entry: enclosure entry 1464 * 1465 * Returns nothing 1466 */ 1467static inline void 1468_mapping_set_mid_to_eid(struct mpr_softc *sc, 1469 struct enc_mapping_table *et_entry) 1470{ 1471 struct dev_mapping_table *mt_entry; 1472 u16 slots = et_entry->num_slots, map_idx; 1473 u32 start_idx = et_entry->start_index; 1474 1475 if (start_idx != MPR_MAPTABLE_BAD_IDX) { 1476 mt_entry = &sc->mapping_table[start_idx]; 1477 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++) 1478 mt_entry->physical_id = et_entry->enclosure_id; 1479 } 1480} 1481 1482/** 1483 * _mapping_clear_removed_entries - mark the entries to be cleared 1484 * @sc: per adapter object 1485 * 1486 * Search through the removal table and mark the entries which needs to be 1487 * flushed to DPM and also updates the map table and enclosure table by 1488 * clearing the corresponding entries. 1489 * 1490 * Returns nothing 1491 */ 1492static void 1493_mapping_clear_removed_entries(struct mpr_softc *sc) 1494{ 1495 u32 remove_idx; 1496 struct map_removal_table *remove_entry; 1497 Mpi2DriverMap0Entry_t *dpm_entry; 1498 u8 done_flag = 0, num_entries, m, i; 1499 struct enc_mapping_table *et_entry, *from, *to; 1500 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1501 1502 if (sc->is_dpm_enable) { 1503 remove_entry = sc->removal_table; 1504 for (remove_idx = 0; remove_idx < sc->max_devices; 1505 remove_idx++, remove_entry++) { 1506 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 1507 dpm_entry = (Mpi2DriverMap0Entry_t *) 1508 ((u8 *) sc->dpm_pg0 + 1509 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 1510 dpm_entry += remove_entry->dpm_entry_num; 1511 dpm_entry->PhysicalIdentifier.Low = 0; 1512 dpm_entry->PhysicalIdentifier.High = 0; 1513 dpm_entry->DeviceIndex = 0; 1514 dpm_entry->MappingInformation = 0; 1515 dpm_entry->PhysicalBitsMapping = 0; 1516 sc->dpm_flush_entry[remove_entry-> 1517 dpm_entry_num] = 1; 1518 sc->dpm_entry_used[remove_entry->dpm_entry_num] 1519 = 0; 1520 remove_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 1521 } 1522 } 1523 } 1524 1525 /* 1526 * When using Enc/Slot mapping, if a new enclosure was added and old 1527 * enclosure space was needed, the enclosure table may now have gaps 1528 * that need to be closed. All enclosure mappings need to be contiguous 1529 * so that space can be reused correctly if available. 1530 */ 1531 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1532 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1533 num_entries = sc->num_enc_table_entries; 1534 while (!done_flag) { 1535 done_flag = 1; 1536 et_entry = sc->enclosure_table; 1537 for (i = 0; i < num_entries; i++, et_entry++) { 1538 if (!et_entry->enc_handle && et_entry-> 1539 init_complete) { 1540 done_flag = 0; 1541 if (i != (num_entries - 1)) { 1542 from = &sc->enclosure_table 1543 [i+1]; 1544 to = &sc->enclosure_table[i]; 1545 for (m = i; m < (num_entries - 1546 1); m++, from++, to++) { 1547 _mapping_set_mid_to_eid 1548 (sc, to); 1549 *to = *from; 1550 } 1551 _mapping_clear_enc_entry(to); 1552 sc->num_enc_table_entries--; 1553 num_entries = 1554 sc->num_enc_table_entries; 1555 } else { 1556 _mapping_clear_enc_entry 1557 (et_entry); 1558 sc->num_enc_table_entries--; 1559 num_entries = 1560 sc->num_enc_table_entries; 1561 } 1562 } 1563 } 1564 } 1565 } 1566} 1567 1568/** 1569 * _mapping_add_new_device -Add the new device into mapping table 1570 * @sc: per adapter object 1571 * @topo_change: Topology change event entry 1572 * 1573 * Search through the topology change event list and update map table, 1574 * enclosure table and DPM pages for the newly added devices. 1575 * 1576 * Returns nothing 1577 */ 1578static void 1579_mapping_add_new_device(struct mpr_softc *sc, 1580 struct _map_topology_change *topo_change) 1581{ 1582 u8 enc_idx, missing_cnt, is_removed = 0; 1583 u16 dpm_idx; 1584 u32 search_idx, map_idx; 1585 u32 entry; 1586 struct dev_mapping_table *mt_entry; 1587 struct enc_mapping_table *et_entry; 1588 struct _map_phy_change *phy_change; 1589 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1590 Mpi2DriverMap0Entry_t *dpm_entry; 1591 uint64_t temp64_var; 1592 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1593 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1594 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1595 1596 for (entry = 0; entry < topo_change->num_entries; entry++) { 1597 phy_change = &topo_change->phy_details[entry]; 1598 if (phy_change->is_processed) 1599 continue; 1600 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED || 1601 !phy_change->dev_handle) { 1602 phy_change->is_processed = 1; 1603 continue; 1604 } 1605 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1606 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1607 enc_idx = _mapping_get_enc_idx_from_handle 1608 (sc, topo_change->enc_handle); 1609 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1610 phy_change->is_processed = 1; 1611 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1612 "failed to add the device with handle " 1613 "0x%04x because the enclosure is not in " 1614 "the mapping table\n", __func__, 1615 phy_change->dev_handle); 1616 continue; 1617 } 1618 1619 /* 1620 * If the enclosure's start_index is BAD here, it means 1621 * that there is no room in the mapping table to cover 1622 * all of the devices that could be in the enclosure. 1623 * There's no reason to process any of the devices for 1624 * this enclosure since they can't be mapped. 1625 */ 1626 et_entry = &sc->enclosure_table[enc_idx]; 1627 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1628 phy_change->is_processed = 1; 1629 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1630 "failed to add the device with handle " 1631 "0x%04x because there is no free space " 1632 "available in the mapping table\n", 1633 __func__, phy_change->dev_handle); 1634 continue; 1635 } 1636 1637 /* 1638 * Add this device to the mapping table at the correct 1639 * offset where space was found to map the enclosure. 1640 * Then setup the DPM entry information if being used. 1641 */ 1642 map_idx = et_entry->start_index + phy_change->slot - 1643 et_entry->start_slot; 1644 mt_entry = &sc->mapping_table[map_idx]; 1645 mt_entry->physical_id = phy_change->physical_id; 1646 mt_entry->id = map_idx; 1647 mt_entry->dev_handle = phy_change->dev_handle; 1648 mt_entry->missing_count = 0; 1649 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1650 mt_entry->device_info = phy_change->device_info | 1651 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1652 if (sc->is_dpm_enable) { 1653 dpm_idx = et_entry->dpm_entry_num; 1654 if (dpm_idx == MPR_DPM_BAD_IDX) 1655 dpm_idx = _mapping_get_dpm_idx_from_id 1656 (sc, et_entry->enclosure_id, 1657 et_entry->phy_bits); 1658 if (dpm_idx == MPR_DPM_BAD_IDX) { 1659 dpm_idx = _mapping_get_free_dpm_idx(sc); 1660 if (dpm_idx != MPR_DPM_BAD_IDX) { 1661 dpm_entry = 1662 (Mpi2DriverMap0Entry_t *) 1663 ((u8 *) sc->dpm_pg0 + 1664 hdr_sz); 1665 dpm_entry += dpm_idx; 1666 dpm_entry-> 1667 PhysicalIdentifier.Low = 1668 (0xFFFFFFFF & 1669 et_entry->enclosure_id); 1670 dpm_entry-> 1671 PhysicalIdentifier.High = 1672 (et_entry->enclosure_id 1673 >> 32); 1674 dpm_entry->DeviceIndex = 1675 (U16)et_entry->start_index; 1676 dpm_entry->MappingInformation = 1677 et_entry->num_slots; 1678 dpm_entry->MappingInformation 1679 <<= map_shift; 1680 dpm_entry->PhysicalBitsMapping 1681 = et_entry->phy_bits; 1682 et_entry->dpm_entry_num = 1683 dpm_idx; 1684 sc->dpm_entry_used[dpm_idx] = 1; 1685 sc->dpm_flush_entry[dpm_idx] = 1686 1; 1687 phy_change->is_processed = 1; 1688 } else { 1689 phy_change->is_processed = 1; 1690 mpr_dprint(sc, MPR_ERROR | 1691 MPR_MAPPING, "%s: failed " 1692 "to add the device with " 1693 "handle 0x%04x to " 1694 "persistent table because " 1695 "there is no free space " 1696 "available\n", __func__, 1697 phy_change->dev_handle); 1698 } 1699 } else { 1700 et_entry->dpm_entry_num = dpm_idx; 1701 mt_entry->dpm_entry_num = dpm_idx; 1702 } 1703 } 1704 et_entry->init_complete = 1; 1705 } else if ((ioc_pg8_flags & 1706 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1707 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1708 1709 /* 1710 * Get the mapping table index for this device. If it's 1711 * not in the mapping table yet, find a free entry if 1712 * one is available. If there are no free entries, look 1713 * for the entry that has the highest missing count. If 1714 * none of that works to find an entry in the mapping 1715 * table, there is a problem. Log a message and just 1716 * continue on. 1717 */ 1718 map_idx = _mapping_get_mt_idx_from_id 1719 (sc, phy_change->physical_id); 1720 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1721 search_idx = sc->num_rsvd_entries; 1722 if (topo_change->exp_handle) 1723 search_idx += max_num_phy_ids; 1724 map_idx = _mapping_get_free_mt_idx(sc, 1725 search_idx); 1726 } 1727 1728 /* 1729 * If an entry will be used that has a missing device, 1730 * clear its entry from the DPM in the controller. 1731 */ 1732 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1733 map_idx = _mapping_get_high_missing_mt_idx(sc); 1734 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1735 mt_entry = &sc->mapping_table[map_idx]; 1736 _mapping_add_to_removal_table(sc, 1737 mt_entry->dpm_entry_num); 1738 is_removed = 1; 1739 mt_entry->init_complete = 0; 1740 } 1741 } 1742 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1743 mt_entry = &sc->mapping_table[map_idx]; 1744 mt_entry->physical_id = phy_change->physical_id; 1745 mt_entry->id = map_idx; 1746 mt_entry->dev_handle = phy_change->dev_handle; 1747 mt_entry->missing_count = 0; 1748 mt_entry->device_info = phy_change->device_info 1749 | (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1750 } else { 1751 phy_change->is_processed = 1; 1752 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1753 "failed to add the device with handle " 1754 "0x%04x because there is no free space " 1755 "available in the mapping table\n", 1756 __func__, phy_change->dev_handle); 1757 continue; 1758 } 1759 if (sc->is_dpm_enable) { 1760 if (mt_entry->dpm_entry_num != 1761 MPR_DPM_BAD_IDX) { 1762 dpm_idx = mt_entry->dpm_entry_num; 1763 dpm_entry = (Mpi2DriverMap0Entry_t *) 1764 ((u8 *)sc->dpm_pg0 + hdr_sz); 1765 dpm_entry += dpm_idx; 1766 missing_cnt = dpm_entry-> 1767 MappingInformation & 1768 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 1769 temp64_var = dpm_entry-> 1770 PhysicalIdentifier.High; 1771 temp64_var = (temp64_var << 32) | 1772 dpm_entry->PhysicalIdentifier.Low; 1773 1774 /* 1775 * If the Mapping Table's info is not 1776 * the same as the DPM entry, clear the 1777 * init_complete flag so that it's 1778 * updated. 1779 */ 1780 if ((mt_entry->physical_id == 1781 temp64_var) && !missing_cnt) 1782 mt_entry->init_complete = 1; 1783 else 1784 mt_entry->init_complete = 0; 1785 } else { 1786 dpm_idx = _mapping_get_free_dpm_idx(sc); 1787 mt_entry->init_complete = 0; 1788 } 1789 if (dpm_idx != MPR_DPM_BAD_IDX && 1790 !mt_entry->init_complete) { 1791 mt_entry->dpm_entry_num = dpm_idx; 1792 dpm_entry = (Mpi2DriverMap0Entry_t *) 1793 ((u8 *)sc->dpm_pg0 + hdr_sz); 1794 dpm_entry += dpm_idx; 1795 dpm_entry->PhysicalIdentifier.Low = 1796 (0xFFFFFFFF & 1797 mt_entry->physical_id); 1798 dpm_entry->PhysicalIdentifier.High = 1799 (mt_entry->physical_id >> 32); 1800 dpm_entry->DeviceIndex = (U16) map_idx; 1801 dpm_entry->MappingInformation = 0; 1802 dpm_entry->PhysicalBitsMapping = 0; 1803 sc->dpm_entry_used[dpm_idx] = 1; 1804 sc->dpm_flush_entry[dpm_idx] = 1; 1805 phy_change->is_processed = 1; 1806 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 1807 phy_change->is_processed = 1; 1808 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 1809 "%s: failed to add the device with " 1810 "handle 0x%04x to persistent table " 1811 "because there is no free space " 1812 "available\n", __func__, 1813 phy_change->dev_handle); 1814 } 1815 } 1816 mt_entry->init_complete = 1; 1817 } 1818 1819 phy_change->is_processed = 1; 1820 } 1821 if (is_removed) 1822 _mapping_clear_removed_entries(sc); 1823} 1824 1825/** 1826 * _mapping_add_new_pcie_device -Add the new PCIe device into mapping table 1827 * @sc: per adapter object 1828 * @topo_change: Topology change event entry 1829 * 1830 * Search through the PCIe topology change event list and update map table, 1831 * enclosure table and DPM pages for the newly added devices. 1832 * 1833 * Returns nothing 1834 */ 1835static void 1836_mapping_add_new_pcie_device(struct mpr_softc *sc, 1837 struct _map_pcie_topology_change *topo_change) 1838{ 1839 u8 enc_idx, missing_cnt, is_removed = 0; 1840 u16 dpm_idx; 1841 u32 search_idx, map_idx; 1842 u32 entry; 1843 struct dev_mapping_table *mt_entry; 1844 struct enc_mapping_table *et_entry; 1845 struct _map_port_change *port_change; 1846 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 1847 Mpi2DriverMap0Entry_t *dpm_entry; 1848 uint64_t temp64_var; 1849 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 1850 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER); 1851 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 1852 1853 for (entry = 0; entry < topo_change->num_entries; entry++) { 1854 port_change = &topo_change->port_details[entry]; 1855 if (port_change->is_processed) 1856 continue; 1857 if (port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED || 1858 !port_change->dev_handle) { 1859 port_change->is_processed = 1; 1860 continue; 1861 } 1862 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1863 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 1864 enc_idx = _mapping_get_enc_idx_from_handle 1865 (sc, topo_change->enc_handle); 1866 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 1867 port_change->is_processed = 1; 1868 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1869 "failed to add the device with handle " 1870 "0x%04x because the enclosure is not in " 1871 "the mapping table\n", __func__, 1872 port_change->dev_handle); 1873 continue; 1874 } 1875 1876 /* 1877 * If the enclosure's start_index is BAD here, it means 1878 * that there is no room in the mapping table to cover 1879 * all of the devices that could be in the enclosure. 1880 * There's no reason to process any of the devices for 1881 * this enclosure since they can't be mapped. 1882 */ 1883 et_entry = &sc->enclosure_table[enc_idx]; 1884 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) { 1885 port_change->is_processed = 1; 1886 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 1887 "failed to add the device with handle " 1888 "0x%04x because there is no free space " 1889 "available in the mapping table\n", 1890 __func__, port_change->dev_handle); 1891 continue; 1892 } 1893 1894 /* 1895 * Add this device to the mapping table at the correct 1896 * offset where space was found to map the enclosure. 1897 * Then setup the DPM entry information if being used. 1898 */ 1899 map_idx = et_entry->start_index + port_change->slot - 1900 et_entry->start_slot; 1901 mt_entry = &sc->mapping_table[map_idx]; 1902 mt_entry->physical_id = port_change->physical_id; 1903 mt_entry->id = map_idx; 1904 mt_entry->dev_handle = port_change->dev_handle; 1905 mt_entry->missing_count = 0; 1906 mt_entry->dpm_entry_num = et_entry->dpm_entry_num; 1907 mt_entry->device_info = port_change->device_info | 1908 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 1909 if (sc->is_dpm_enable) { 1910 dpm_idx = et_entry->dpm_entry_num; 1911 if (dpm_idx == MPR_DPM_BAD_IDX) 1912 dpm_idx = _mapping_get_dpm_idx_from_id 1913 (sc, et_entry->enclosure_id, 1914 et_entry->phy_bits); 1915 if (dpm_idx == MPR_DPM_BAD_IDX) { 1916 dpm_idx = _mapping_get_free_dpm_idx(sc); 1917 if (dpm_idx != MPR_DPM_BAD_IDX) { 1918 dpm_entry = 1919 (Mpi2DriverMap0Entry_t *) 1920 ((u8 *) sc->dpm_pg0 + 1921 hdr_sz); 1922 dpm_entry += dpm_idx; 1923 dpm_entry-> 1924 PhysicalIdentifier.Low = 1925 (0xFFFFFFFF & 1926 et_entry->enclosure_id); 1927 dpm_entry-> 1928 PhysicalIdentifier.High = 1929 (et_entry->enclosure_id 1930 >> 32); 1931 dpm_entry->DeviceIndex = 1932 (U16)et_entry->start_index; 1933 dpm_entry->MappingInformation = 1934 et_entry->num_slots; 1935 dpm_entry->MappingInformation 1936 <<= map_shift; 1937 dpm_entry->PhysicalBitsMapping 1938 = et_entry->phy_bits; 1939 et_entry->dpm_entry_num = 1940 dpm_idx; 1941 sc->dpm_entry_used[dpm_idx] = 1; 1942 sc->dpm_flush_entry[dpm_idx] = 1943 1; 1944 port_change->is_processed = 1; 1945 } else { 1946 port_change->is_processed = 1; 1947 mpr_dprint(sc, MPR_ERROR | 1948 MPR_MAPPING, "%s: failed " 1949 "to add the device with " 1950 "handle 0x%04x to " 1951 "persistent table because " 1952 "there is no free space " 1953 "available\n", __func__, 1954 port_change->dev_handle); 1955 } 1956 } else { 1957 et_entry->dpm_entry_num = dpm_idx; 1958 mt_entry->dpm_entry_num = dpm_idx; 1959 } 1960 } 1961 et_entry->init_complete = 1; 1962 } else if ((ioc_pg8_flags & 1963 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 1964 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 1965 1966 /* 1967 * Get the mapping table index for this device. If it's 1968 * not in the mapping table yet, find a free entry if 1969 * one is available. If there are no free entries, look 1970 * for the entry that has the highest missing count. If 1971 * none of that works to find an entry in the mapping 1972 * table, there is a problem. Log a message and just 1973 * continue on. 1974 */ 1975 map_idx = _mapping_get_mt_idx_from_id 1976 (sc, port_change->physical_id); 1977 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1978 search_idx = sc->num_rsvd_entries; 1979 if (topo_change->switch_dev_handle) 1980 search_idx += max_num_phy_ids; 1981 map_idx = _mapping_get_free_mt_idx(sc, 1982 search_idx); 1983 } 1984 1985 /* 1986 * If an entry will be used that has a missing device, 1987 * clear its entry from the DPM in the controller. 1988 */ 1989 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 1990 map_idx = _mapping_get_high_missing_mt_idx(sc); 1991 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 1992 mt_entry = &sc->mapping_table[map_idx]; 1993 _mapping_add_to_removal_table(sc, 1994 mt_entry->dpm_entry_num); 1995 is_removed = 1; 1996 mt_entry->init_complete = 0; 1997 } 1998 } 1999 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 2000 mt_entry = &sc->mapping_table[map_idx]; 2001 mt_entry->physical_id = 2002 port_change->physical_id; 2003 mt_entry->id = map_idx; 2004 mt_entry->dev_handle = port_change->dev_handle; 2005 mt_entry->missing_count = 0; 2006 mt_entry->device_info = 2007 port_change->device_info | 2008 (MPR_DEV_RESERVED | MPR_MAP_IN_USE); 2009 } else { 2010 port_change->is_processed = 1; 2011 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2012 "failed to add the device with handle " 2013 "0x%04x because there is no free space " 2014 "available in the mapping table\n", 2015 __func__, port_change->dev_handle); 2016 continue; 2017 } 2018 if (sc->is_dpm_enable) { 2019 if (mt_entry->dpm_entry_num != 2020 MPR_DPM_BAD_IDX) { 2021 dpm_idx = mt_entry->dpm_entry_num; 2022 dpm_entry = (Mpi2DriverMap0Entry_t *) 2023 ((u8 *)sc->dpm_pg0 + hdr_sz); 2024 dpm_entry += dpm_idx; 2025 missing_cnt = dpm_entry-> 2026 MappingInformation & 2027 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2028 temp64_var = dpm_entry-> 2029 PhysicalIdentifier.High; 2030 temp64_var = (temp64_var << 32) | 2031 dpm_entry->PhysicalIdentifier.Low; 2032 2033 /* 2034 * If the Mapping Table's info is not 2035 * the same as the DPM entry, clear the 2036 * init_complete flag so that it's 2037 * updated. 2038 */ 2039 if ((mt_entry->physical_id == 2040 temp64_var) && !missing_cnt) 2041 mt_entry->init_complete = 1; 2042 else 2043 mt_entry->init_complete = 0; 2044 } else { 2045 dpm_idx = _mapping_get_free_dpm_idx(sc); 2046 mt_entry->init_complete = 0; 2047 } 2048 if (dpm_idx != MPR_DPM_BAD_IDX && 2049 !mt_entry->init_complete) { 2050 mt_entry->dpm_entry_num = dpm_idx; 2051 dpm_entry = (Mpi2DriverMap0Entry_t *) 2052 ((u8 *)sc->dpm_pg0 + hdr_sz); 2053 dpm_entry += dpm_idx; 2054 dpm_entry->PhysicalIdentifier.Low = 2055 (0xFFFFFFFF & 2056 mt_entry->physical_id); 2057 dpm_entry->PhysicalIdentifier.High = 2058 (mt_entry->physical_id >> 32); 2059 dpm_entry->DeviceIndex = (U16) map_idx; 2060 dpm_entry->MappingInformation = 0; 2061 dpm_entry->PhysicalBitsMapping = 0; 2062 sc->dpm_entry_used[dpm_idx] = 1; 2063 sc->dpm_flush_entry[dpm_idx] = 1; 2064 port_change->is_processed = 1; 2065 } else if (dpm_idx == MPR_DPM_BAD_IDX) { 2066 port_change->is_processed = 1; 2067 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2068 "%s: failed to add the device with " 2069 "handle 0x%04x to persistent table " 2070 "because there is no free space " 2071 "available\n", __func__, 2072 port_change->dev_handle); 2073 } 2074 } 2075 mt_entry->init_complete = 1; 2076 } 2077 2078 port_change->is_processed = 1; 2079 } 2080 if (is_removed) 2081 _mapping_clear_removed_entries(sc); 2082} 2083 2084/** 2085 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM 2086 * @sc: per adapter object 2087 * 2088 * Returns nothing 2089 */ 2090static void 2091_mapping_flush_dpm_pages(struct mpr_softc *sc) 2092{ 2093 Mpi2DriverMap0Entry_t *dpm_entry; 2094 Mpi2ConfigReply_t mpi_reply; 2095 Mpi2DriverMappingPage0_t config_page; 2096 u16 entry_num; 2097 2098 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2099 if (!sc->dpm_flush_entry[entry_num]) 2100 continue; 2101 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t)); 2102 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0, 2103 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2104 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 + 2105 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2106 dpm_entry += entry_num; 2107 dpm_entry->MappingInformation = htole16(dpm_entry-> 2108 MappingInformation); 2109 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex); 2110 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry-> 2111 PhysicalBitsMapping); 2112 memcpy(&config_page.Entry, (u8 *)dpm_entry, 2113 sizeof(Mpi2DriverMap0Entry_t)); 2114 /* TODO-How to handle failed writes? */ 2115 mpr_dprint(sc, MPR_MAPPING, "%s: Flushing DPM entry %d.\n", 2116 __func__, entry_num); 2117 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page, 2118 entry_num)) { 2119 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Flush of " 2120 "DPM entry %d for device failed\n", __func__, 2121 entry_num); 2122 } else 2123 sc->dpm_flush_entry[entry_num] = 0; 2124 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2125 MappingInformation); 2126 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex); 2127 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry-> 2128 PhysicalBitsMapping); 2129 } 2130} 2131 2132/** 2133 * _mapping_allocate_memory- allocates the memory required for mapping tables 2134 * @sc: per adapter object 2135 * 2136 * Allocates the memory for all the tables required for host mapping 2137 * 2138 * Return 0 on success or non-zero on failure. 2139 */ 2140int 2141mpr_mapping_allocate_memory(struct mpr_softc *sc) 2142{ 2143 uint32_t dpm_pg0_sz; 2144 2145 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) * 2146 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2147 if (!sc->mapping_table) 2148 goto free_resources; 2149 2150 sc->removal_table = malloc((sizeof(struct map_removal_table) * 2151 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT); 2152 if (!sc->removal_table) 2153 goto free_resources; 2154 2155 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) * 2156 sc->max_enclosures), M_MPR, M_ZERO|M_NOWAIT); 2157 if (!sc->enclosure_table) 2158 goto free_resources; 2159 2160 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries), 2161 M_MPR, M_ZERO|M_NOWAIT); 2162 if (!sc->dpm_entry_used) 2163 goto free_resources; 2164 2165 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries), 2166 M_MPR, M_ZERO|M_NOWAIT); 2167 if (!sc->dpm_flush_entry) 2168 goto free_resources; 2169 2170 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2171 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2172 2173 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPR, M_ZERO|M_NOWAIT); 2174 if (!sc->dpm_pg0) { 2175 printf("%s: memory alloc failed for dpm page; disabling dpm\n", 2176 __func__); 2177 sc->is_dpm_enable = 0; 2178 } 2179 2180 return 0; 2181 2182free_resources: 2183 free(sc->mapping_table, M_MPR); 2184 free(sc->removal_table, M_MPR); 2185 free(sc->enclosure_table, M_MPR); 2186 free(sc->dpm_entry_used, M_MPR); 2187 free(sc->dpm_flush_entry, M_MPR); 2188 free(sc->dpm_pg0, M_MPR); 2189 printf("%s: device initialization failed due to failure in mapping " 2190 "table memory allocation\n", __func__); 2191 return -1; 2192} 2193 2194/** 2195 * mpr_mapping_free_memory- frees the memory allocated for mapping tables 2196 * @sc: per adapter object 2197 * 2198 * Returns nothing. 2199 */ 2200void 2201mpr_mapping_free_memory(struct mpr_softc *sc) 2202{ 2203 free(sc->mapping_table, M_MPR); 2204 free(sc->removal_table, M_MPR); 2205 free(sc->enclosure_table, M_MPR); 2206 free(sc->dpm_entry_used, M_MPR); 2207 free(sc->dpm_flush_entry, M_MPR); 2208 free(sc->dpm_pg0, M_MPR); 2209} 2210 2211static bool 2212_mapping_process_dpm_pg0(struct mpr_softc *sc) 2213{ 2214 u8 missing_cnt, enc_idx; 2215 u16 slot_id, entry_num, num_slots; 2216 u32 map_idx, dev_idx, start_idx, end_idx; 2217 struct dev_mapping_table *mt_entry; 2218 Mpi2DriverMap0Entry_t *dpm_entry; 2219 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2220 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs); 2221 struct enc_mapping_table *et_entry; 2222 u64 physical_id; 2223 u32 phy_bits = 0; 2224 2225 /* 2226 * start_idx and end_idx are only used for IR. 2227 */ 2228 if (sc->ir_firmware) 2229 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2230 2231 /* 2232 * Look through all of the DPM entries that were read from the 2233 * controller and copy them over to the driver's internal table if they 2234 * have a non-zero ID. At this point, any ID with a value of 0 would be 2235 * invalid, so don't copy it. 2236 */ 2237 mpr_dprint(sc, MPR_MAPPING, "%s: Start copy of %d DPM entries into the " 2238 "mapping table.\n", __func__, sc->max_dpm_entries); 2239 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 + 2240 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2241 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++, 2242 dpm_entry++) { 2243 physical_id = dpm_entry->PhysicalIdentifier.High; 2244 physical_id = (physical_id << 32) | 2245 dpm_entry->PhysicalIdentifier.Low; 2246 if (!physical_id) { 2247 sc->dpm_entry_used[entry_num] = 0; 2248 continue; 2249 } 2250 sc->dpm_entry_used[entry_num] = 1; 2251 dpm_entry->MappingInformation = le16toh(dpm_entry-> 2252 MappingInformation); 2253 missing_cnt = dpm_entry->MappingInformation & 2254 MPI2_DRVMAP0_MAPINFO_MISSING_MASK; 2255 dev_idx = le16toh(dpm_entry->DeviceIndex); 2256 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping); 2257 2258 /* 2259 * Volumes are at special locations in the mapping table so 2260 * account for that. Volume mapping table entries do not depend 2261 * on the type of mapping, so continue the loop after adding 2262 * volumes to the mapping table. 2263 */ 2264 if (sc->ir_firmware && (dev_idx >= start_idx) && 2265 (dev_idx <= end_idx)) { 2266 mt_entry = &sc->mapping_table[dev_idx]; 2267 mt_entry->physical_id = 2268 dpm_entry->PhysicalIdentifier.High; 2269 mt_entry->physical_id = (mt_entry->physical_id << 32) | 2270 dpm_entry->PhysicalIdentifier.Low; 2271 mt_entry->id = dev_idx; 2272 mt_entry->missing_count = missing_cnt; 2273 mt_entry->dpm_entry_num = entry_num; 2274 mt_entry->device_info = MPR_DEV_RESERVED; 2275 continue; 2276 } 2277 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2278 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2279 2280 /* 2281 * The dev_idx for an enclosure is the start index. If 2282 * the start index is within the controller's default 2283 * enclosure area, set the number of slots for this 2284 * enclosure to the max allowed. Otherwise, it should be 2285 * a normal enclosure and the number of slots is in the 2286 * DPM entry's Mapping Information. 2287 */ 2288 if (dev_idx < (sc->num_rsvd_entries + 2289 max_num_phy_ids)) { 2290 slot_id = 0; 2291 if (ioc_pg8_flags & 2292 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1) 2293 slot_id = 1; 2294 num_slots = max_num_phy_ids; 2295 } else { 2296 slot_id = 0; 2297 num_slots = dpm_entry->MappingInformation & 2298 MPI2_DRVMAP0_MAPINFO_SLOT_MASK; 2299 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2300 } 2301 enc_idx = sc->num_enc_table_entries; 2302 if (enc_idx >= sc->max_enclosures) { 2303 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2304 "Number of enclosure entries in DPM exceed " 2305 "the max allowed of %d.\n", __func__, 2306 sc->max_enclosures); 2307 break; 2308 } 2309 sc->num_enc_table_entries++; 2310 et_entry = &sc->enclosure_table[enc_idx]; 2311 physical_id = dpm_entry->PhysicalIdentifier.High; 2312 et_entry->enclosure_id = (physical_id << 32) | 2313 dpm_entry->PhysicalIdentifier.Low; 2314 et_entry->start_index = dev_idx; 2315 et_entry->dpm_entry_num = entry_num; 2316 et_entry->num_slots = num_slots; 2317 et_entry->start_slot = slot_id; 2318 et_entry->missing_count = missing_cnt; 2319 et_entry->phy_bits = phy_bits; 2320 2321 /* 2322 * Initialize all entries for this enclosure in the 2323 * mapping table and mark them as reserved. The actual 2324 * devices have not been processed yet but when they are 2325 * they will use these entries. If an entry is found 2326 * that already has a valid DPM index, the mapping table 2327 * is corrupt. This can happen if the mapping type is 2328 * changed without clearing all of the DPM entries in 2329 * the controller. 2330 */ 2331 mt_entry = &sc->mapping_table[dev_idx]; 2332 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots); 2333 map_idx++, mt_entry++) { 2334 if (mt_entry->dpm_entry_num != 2335 MPR_DPM_BAD_IDX) { 2336 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 2337 "%s: Conflict in mapping table for " 2338 " enclosure %d\n", __func__, 2339 enc_idx); 2340 goto fail; 2341 } 2342 physical_id = 2343 dpm_entry->PhysicalIdentifier.High; 2344 mt_entry->physical_id = (physical_id << 32) | 2345 dpm_entry->PhysicalIdentifier.Low; 2346 mt_entry->phy_bits = phy_bits; 2347 mt_entry->id = dev_idx; 2348 mt_entry->dpm_entry_num = entry_num; 2349 mt_entry->missing_count = missing_cnt; 2350 mt_entry->device_info = MPR_DEV_RESERVED; 2351 } 2352 } else if ((ioc_pg8_flags & 2353 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2354 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2355 2356 /* 2357 * Device mapping, so simply copy the DPM entries to the 2358 * mapping table, but check for a corrupt mapping table 2359 * (as described above in Enc/Slot mapping). 2360 */ 2361 map_idx = dev_idx; 2362 mt_entry = &sc->mapping_table[map_idx]; 2363 if (mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2364 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2365 "Conflict in mapping table for device %d\n", 2366 __func__, map_idx); 2367 goto fail; 2368 } 2369 physical_id = dpm_entry->PhysicalIdentifier.High; 2370 mt_entry->physical_id = (physical_id << 32) | 2371 dpm_entry->PhysicalIdentifier.Low; 2372 mt_entry->phy_bits = phy_bits; 2373 mt_entry->id = dev_idx; 2374 mt_entry->missing_count = missing_cnt; 2375 mt_entry->dpm_entry_num = entry_num; 2376 mt_entry->device_info = MPR_DEV_RESERVED; 2377 } 2378 } /*close the loop for DPM table */ 2379 return (true); 2380 2381fail: 2382 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) { 2383 sc->dpm_entry_used[entry_num] = 0; 2384 /* 2385 * for IR firmware, it may be necessary to wipe out 2386 * sc->mapping_table volumes tooi 2387 */ 2388 } 2389 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) 2390 _mapping_clear_enc_entry(sc->enclosure_table + enc_idx); 2391 sc->num_enc_table_entries = 0; 2392 return (false); 2393} 2394 2395/* 2396 * mpr_mapping_check_devices - start of the day check for device availabilty 2397 * @sc: per adapter object 2398 * 2399 * Returns nothing. 2400 */ 2401void 2402mpr_mapping_check_devices(void *data) 2403{ 2404 u32 i; 2405 struct dev_mapping_table *mt_entry; 2406 struct mpr_softc *sc = (struct mpr_softc *)data; 2407 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2408 struct enc_mapping_table *et_entry; 2409 u32 start_idx = 0, end_idx = 0; 2410 u8 stop_device_checks = 0; 2411 2412 MPR_FUNCTRACE(sc); 2413 2414 /* 2415 * Clear this flag so that this function is never called again except 2416 * within this function if the check needs to be done again. The 2417 * purpose is to check for missing devices that are currently in the 2418 * mapping table so do this only at driver init after discovery. 2419 */ 2420 sc->track_mapping_events = 0; 2421 2422 /* 2423 * callout synchronization 2424 * This is used to prevent race conditions for the callout. 2425 */ 2426 mpr_dprint(sc, MPR_MAPPING, "%s: Start check for missing devices.\n", 2427 __func__); 2428 mtx_assert(&sc->mpr_mtx, MA_OWNED); 2429 if ((callout_pending(&sc->device_check_callout)) || 2430 (!callout_active(&sc->device_check_callout))) { 2431 mpr_dprint(sc, MPR_MAPPING, "%s: Device Check Callout is " 2432 "already pending or not active.\n", __func__); 2433 return; 2434 } 2435 callout_deactivate(&sc->device_check_callout); 2436 2437 /* 2438 * Use callout to check if any devices in the mapping table have been 2439 * processed yet. If ALL devices are marked as not init_complete, no 2440 * devices have been processed and mapped. Until devices are mapped 2441 * there's no reason to mark them as missing. Continue resetting this 2442 * callout until devices have been mapped. 2443 */ 2444 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2445 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2446 et_entry = sc->enclosure_table; 2447 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2448 if (et_entry->init_complete) { 2449 stop_device_checks = 1; 2450 break; 2451 } 2452 } 2453 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2454 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2455 mt_entry = sc->mapping_table; 2456 for (i = 0; i < sc->max_devices; i++, mt_entry++) { 2457 if (mt_entry->init_complete) { 2458 stop_device_checks = 1; 2459 break; 2460 } 2461 } 2462 } 2463 2464 /* 2465 * Setup another callout check after a delay. Keep doing this until 2466 * devices are mapped. 2467 */ 2468 if (!stop_device_checks) { 2469 mpr_dprint(sc, MPR_MAPPING, "%s: No devices have been mapped. " 2470 "Reset callout to check again after a %d second delay.\n", 2471 __func__, MPR_MISSING_CHECK_DELAY); 2472 callout_reset(&sc->device_check_callout, 2473 MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices, 2474 sc); 2475 return; 2476 } 2477 mpr_dprint(sc, MPR_MAPPING, "%s: Device check complete.\n", __func__); 2478 2479 /* 2480 * Depending on the mapping type, check if devices have been processed 2481 * and update their missing counts if not processed. 2482 */ 2483 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2484 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) { 2485 et_entry = sc->enclosure_table; 2486 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) { 2487 if (!et_entry->init_complete) { 2488 if (et_entry->missing_count < 2489 MPR_MAX_MISSING_COUNT) { 2490 mpr_dprint(sc, MPR_MAPPING, "%s: " 2491 "Enclosure %d is missing from the " 2492 "topology. Update its missing " 2493 "count.\n", __func__, i); 2494 et_entry->missing_count++; 2495 if (et_entry->dpm_entry_num != 2496 MPR_DPM_BAD_IDX) { 2497 _mapping_commit_enc_entry(sc, 2498 et_entry); 2499 } 2500 } 2501 et_entry->init_complete = 1; 2502 } 2503 } 2504 if (!sc->ir_firmware) 2505 return; 2506 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2507 mt_entry = &sc->mapping_table[start_idx]; 2508 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) == 2509 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) { 2510 start_idx = 0; 2511 end_idx = sc->max_devices - 1; 2512 mt_entry = sc->mapping_table; 2513 } 2514 2515 /* 2516 * The start and end indices have been set above according to the 2517 * mapping type. Go through these mappings and update any entries that 2518 * do not have the init_complete flag set, which means they are missing. 2519 */ 2520 if (end_idx == 0) 2521 return; 2522 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) { 2523 if (mt_entry->device_info & MPR_DEV_RESERVED 2524 && !mt_entry->physical_id) 2525 mt_entry->init_complete = 1; 2526 else if (mt_entry->device_info & MPR_DEV_RESERVED) { 2527 if (!mt_entry->init_complete) { 2528 mpr_dprint(sc, MPR_MAPPING, "%s: Device in " 2529 "mapping table at index %d is missing from " 2530 "topology. Update its missing count.\n", 2531 __func__, i); 2532 if (mt_entry->missing_count < 2533 MPR_MAX_MISSING_COUNT) { 2534 mt_entry->missing_count++; 2535 if (mt_entry->dpm_entry_num != 2536 MPR_DPM_BAD_IDX) { 2537 _mapping_commit_map_entry(sc, 2538 mt_entry); 2539 } 2540 } 2541 mt_entry->init_complete = 1; 2542 } 2543 } 2544 } 2545} 2546 2547/** 2548 * mpr_mapping_initialize - initialize mapping tables 2549 * @sc: per adapter object 2550 * 2551 * Read controller persitant mapping tables into internal data area. 2552 * 2553 * Return 0 for success or non-zero for failure. 2554 */ 2555int 2556mpr_mapping_initialize(struct mpr_softc *sc) 2557{ 2558 uint16_t volume_mapping_flags, dpm_pg0_sz; 2559 uint32_t i; 2560 Mpi2ConfigReply_t mpi_reply; 2561 int error; 2562 uint8_t retry_count; 2563 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2564 2565 /* The additional 1 accounts for the virtual enclosure 2566 * created for the controller 2567 */ 2568 sc->max_enclosures = sc->facts->MaxEnclosures + 1; 2569 sc->max_expanders = sc->facts->MaxSasExpanders; 2570 sc->max_volumes = sc->facts->MaxVolumes; 2571 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes; 2572 sc->pending_map_events = 0; 2573 sc->num_enc_table_entries = 0; 2574 sc->num_rsvd_entries = 0; 2575 sc->max_dpm_entries = sc->ioc_pg8.MaxPersistentEntries; 2576 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0; 2577 sc->track_mapping_events = 0; 2578 2579 mpr_dprint(sc, MPR_MAPPING, "%s: Mapping table has a max of %d entries " 2580 "and DPM has a max of %d entries.\n", __func__, sc->max_devices, 2581 sc->max_dpm_entries); 2582 2583 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING) 2584 sc->is_dpm_enable = 0; 2585 2586 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0) 2587 sc->num_rsvd_entries = 1; 2588 2589 volume_mapping_flags = sc->ioc_pg8.IRVolumeMappingFlags & 2590 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; 2591 if (sc->ir_firmware && (volume_mapping_flags == 2592 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)) 2593 sc->num_rsvd_entries += sc->max_volumes; 2594 2595 error = mpr_mapping_allocate_memory(sc); 2596 if (error) 2597 return (error); 2598 2599 for (i = 0; i < sc->max_devices; i++) 2600 _mapping_clear_map_entry(sc->mapping_table + i); 2601 2602 for (i = 0; i < sc->max_enclosures; i++) 2603 _mapping_clear_enc_entry(sc->enclosure_table + i); 2604 2605 for (i = 0; i < sc->max_devices; i++) { 2606 sc->removal_table[i].dev_handle = 0; 2607 sc->removal_table[i].dpm_entry_num = MPR_DPM_BAD_IDX; 2608 } 2609 2610 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries); 2611 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries); 2612 2613 if (sc->is_dpm_enable) { 2614 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) + 2615 (sc->max_dpm_entries * 2616 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY)); 2617 retry_count = 0; 2618 2619retry_read_dpm: 2620 if (mpr_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0, 2621 dpm_pg0_sz)) { 2622 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: DPM page " 2623 "read failed.\n", __func__); 2624 if (retry_count < 3) { 2625 retry_count++; 2626 goto retry_read_dpm; 2627 } 2628 sc->is_dpm_enable = 0; 2629 } 2630 } 2631 2632 if (sc->is_dpm_enable) { 2633 if (!_mapping_process_dpm_pg0(sc)) 2634 sc->is_dpm_enable = 0; 2635 } 2636 if (! sc->is_dpm_enable) { 2637 mpr_dprint(sc, MPR_MAPPING, "%s: DPM processing is disabled. " 2638 "Device mappings will not persist across reboots or " 2639 "resets.\n", __func__); 2640 } 2641 2642 sc->track_mapping_events = 1; 2643 return 0; 2644} 2645 2646/** 2647 * mpr_mapping_exit - clear mapping table and associated memory 2648 * @sc: per adapter object 2649 * 2650 * Returns nothing. 2651 */ 2652void 2653mpr_mapping_exit(struct mpr_softc *sc) 2654{ 2655 _mapping_flush_dpm_pages(sc); 2656 mpr_mapping_free_memory(sc); 2657} 2658 2659/** 2660 * mpr_mapping_get_tid - return the target id for sas device and handle 2661 * @sc: per adapter object 2662 * @sas_address: sas address of the device 2663 * @handle: device handle 2664 * 2665 * Returns valid target ID on success or BAD_ID. 2666 */ 2667unsigned int 2668mpr_mapping_get_tid(struct mpr_softc *sc, uint64_t sas_address, u16 handle) 2669{ 2670 u32 map_idx; 2671 struct dev_mapping_table *mt_entry; 2672 2673 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) { 2674 mt_entry = &sc->mapping_table[map_idx]; 2675 if (mt_entry->dev_handle == handle && mt_entry->physical_id == 2676 sas_address) 2677 return mt_entry->id; 2678 } 2679 2680 return MPR_MAP_BAD_ID; 2681} 2682 2683/** 2684 * mpr_mapping_get_tid_from_handle - find a target id in mapping table using 2685 * only the dev handle. This is just a wrapper function for the local function 2686 * _mapping_get_mt_idx_from_handle. 2687 * @sc: per adapter object 2688 * @handle: device handle 2689 * 2690 * Returns valid target ID on success or BAD_ID. 2691 */ 2692unsigned int 2693mpr_mapping_get_tid_from_handle(struct mpr_softc *sc, u16 handle) 2694{ 2695 return (_mapping_get_mt_idx_from_handle(sc, handle)); 2696} 2697 2698/** 2699 * mpr_mapping_get_raid_tid - return the target id for raid device 2700 * @sc: per adapter object 2701 * @wwid: world wide identifier for raid volume 2702 * @volHandle: volume device handle 2703 * 2704 * Returns valid target ID on success or BAD_ID. 2705 */ 2706unsigned int 2707mpr_mapping_get_raid_tid(struct mpr_softc *sc, u64 wwid, u16 volHandle) 2708{ 2709 u32 start_idx, end_idx, map_idx; 2710 struct dev_mapping_table *mt_entry; 2711 2712 _mapping_get_ir_maprange(sc, &start_idx, &end_idx); 2713 mt_entry = &sc->mapping_table[start_idx]; 2714 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) { 2715 if (mt_entry->dev_handle == volHandle && 2716 mt_entry->physical_id == wwid) 2717 return mt_entry->id; 2718 } 2719 2720 return MPR_MAP_BAD_ID; 2721} 2722 2723/** 2724 * mpr_mapping_get_raid_tid_from_handle - find raid device in mapping table 2725 * using only the volume dev handle. This is just a wrapper function for the 2726 * local function _mapping_get_ir_mt_idx_from_handle. 2727 * @sc: per adapter object 2728 * @volHandle: volume device handle 2729 * 2730 * Returns valid target ID on success or BAD_ID. 2731 */ 2732unsigned int 2733mpr_mapping_get_raid_tid_from_handle(struct mpr_softc *sc, u16 volHandle) 2734{ 2735 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle)); 2736} 2737 2738/** 2739 * mpr_mapping_enclosure_dev_status_change_event - handle enclosure events 2740 * @sc: per adapter object 2741 * @event_data: event data payload 2742 * 2743 * Return nothing. 2744 */ 2745void 2746mpr_mapping_enclosure_dev_status_change_event(struct mpr_softc *sc, 2747 Mpi2EventDataSasEnclDevStatusChange_t *event_data) 2748{ 2749 u8 enc_idx, missing_count; 2750 struct enc_mapping_table *et_entry; 2751 Mpi2DriverMap0Entry_t *dpm_entry; 2752 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags); 2753 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT; 2754 u8 update_phy_bits = 0; 2755 u32 saved_phy_bits; 2756 uint64_t temp64_var; 2757 2758 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) != 2759 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) 2760 goto out; 2761 2762 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 + 2763 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)); 2764 2765 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) { 2766 if (!event_data->NumSlots) { 2767 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure " 2768 "with handle = 0x%x reported 0 slots.\n", __func__, 2769 le16toh(event_data->EnclosureHandle)); 2770 goto out; 2771 } 2772 temp64_var = event_data->EnclosureLogicalID.High; 2773 temp64_var = (temp64_var << 32) | 2774 event_data->EnclosureLogicalID.Low; 2775 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var, 2776 event_data->PhyBits); 2777 2778 /* 2779 * If the Added enclosure is already in the Enclosure Table, 2780 * make sure that all the the enclosure info is up to date. If 2781 * the enclosure was missing and has just been added back, or if 2782 * the enclosure's Phy Bits have changed, clear the missing 2783 * count and update the Phy Bits in the mapping table and in the 2784 * DPM, if it's being used. 2785 */ 2786 if (enc_idx != MPR_ENCTABLE_BAD_IDX) { 2787 et_entry = &sc->enclosure_table[enc_idx]; 2788 if (et_entry->init_complete && 2789 !et_entry->missing_count) { 2790 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d " 2791 "is already present with handle = 0x%x\n", 2792 __func__, enc_idx, et_entry->enc_handle); 2793 goto out; 2794 } 2795 et_entry->enc_handle = le16toh(event_data-> 2796 EnclosureHandle); 2797 et_entry->start_slot = le16toh(event_data->StartSlot); 2798 saved_phy_bits = et_entry->phy_bits; 2799 et_entry->phy_bits |= le32toh(event_data->PhyBits); 2800 if (saved_phy_bits != et_entry->phy_bits) 2801 update_phy_bits = 1; 2802 if (et_entry->missing_count || update_phy_bits) { 2803 et_entry->missing_count = 0; 2804 if (sc->is_dpm_enable && 2805 et_entry->dpm_entry_num != 2806 MPR_DPM_BAD_IDX) { 2807 dpm_entry += et_entry->dpm_entry_num; 2808 missing_count = 2809 (u8)(dpm_entry->MappingInformation & 2810 MPI2_DRVMAP0_MAPINFO_MISSING_MASK); 2811 if (missing_count || update_phy_bits) { 2812 dpm_entry->MappingInformation 2813 = et_entry->num_slots; 2814 dpm_entry->MappingInformation 2815 <<= map_shift; 2816 dpm_entry->PhysicalBitsMapping 2817 = et_entry->phy_bits; 2818 sc->dpm_flush_entry[et_entry-> 2819 dpm_entry_num] = 1; 2820 } 2821 } 2822 } 2823 } else { 2824 /* 2825 * This is a new enclosure that is being added. 2826 * Initialize the Enclosure Table entry. It will be 2827 * finalized when a device is added for the enclosure 2828 * and the enclosure has enough space in the Mapping 2829 * Table to map its devices. 2830 */ 2831 enc_idx = sc->num_enc_table_entries; 2832 if (enc_idx >= sc->max_enclosures) { 2833 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: " 2834 "Enclosure cannot be added to mapping " 2835 "table because it's full.\n", __func__); 2836 goto out; 2837 } 2838 sc->num_enc_table_entries++; 2839 et_entry = &sc->enclosure_table[enc_idx]; 2840 et_entry->enc_handle = le16toh(event_data-> 2841 EnclosureHandle); 2842 et_entry->enclosure_id = le64toh(event_data-> 2843 EnclosureLogicalID.High); 2844 et_entry->enclosure_id = 2845 ((et_entry->enclosure_id << 32) | 2846 le64toh(event_data->EnclosureLogicalID.Low)); 2847 et_entry->start_index = MPR_MAPTABLE_BAD_IDX; 2848 et_entry->dpm_entry_num = MPR_DPM_BAD_IDX; 2849 et_entry->num_slots = le16toh(event_data->NumSlots); 2850 et_entry->start_slot = le16toh(event_data->StartSlot); 2851 et_entry->phy_bits = le32toh(event_data->PhyBits); 2852 } 2853 et_entry->init_complete = 1; 2854 } else if (event_data->ReasonCode == 2855 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) { 2856 /* 2857 * An enclosure was removed. Update its missing count and then 2858 * update the DPM entry with the new missing count for the 2859 * enclosure. 2860 */ 2861 enc_idx = _mapping_get_enc_idx_from_handle(sc, 2862 le16toh(event_data->EnclosureHandle)); 2863 if (enc_idx == MPR_ENCTABLE_BAD_IDX) { 2864 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Cannot " 2865 "unmap enclosure %d because it has already been " 2866 "deleted.\n", __func__, enc_idx); 2867 goto out; 2868 } 2869 et_entry = &sc->enclosure_table[enc_idx]; 2870 if (et_entry->missing_count < MPR_MAX_MISSING_COUNT) 2871 et_entry->missing_count++; 2872 if (sc->is_dpm_enable && 2873 et_entry->dpm_entry_num != MPR_DPM_BAD_IDX) { 2874 dpm_entry += et_entry->dpm_entry_num; 2875 dpm_entry->MappingInformation = et_entry->num_slots; 2876 dpm_entry->MappingInformation <<= map_shift; 2877 dpm_entry->MappingInformation |= 2878 et_entry->missing_count; 2879 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1; 2880 } 2881 et_entry->init_complete = 1; 2882 } 2883 2884out: 2885 _mapping_flush_dpm_pages(sc); 2886 if (sc->pending_map_events) 2887 sc->pending_map_events--; 2888} 2889 2890/** 2891 * mpr_mapping_topology_change_event - handle topology change events 2892 * @sc: per adapter object 2893 * @event_data: event data payload 2894 * 2895 * Returns nothing. 2896 */ 2897void 2898mpr_mapping_topology_change_event(struct mpr_softc *sc, 2899 Mpi2EventDataSasTopologyChangeList_t *event_data) 2900{ 2901 struct _map_topology_change topo_change; 2902 struct _map_phy_change *phy_change; 2903 Mpi2EventSasTopoPhyEntry_t *event_phy_change; 2904 u8 i, num_entries; 2905 2906 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2907 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle); 2908 num_entries = event_data->NumEntries; 2909 topo_change.num_entries = num_entries; 2910 topo_change.start_phy_num = event_data->StartPhyNum; 2911 topo_change.num_phys = event_data->NumPhys; 2912 topo_change.exp_status = event_data->ExpStatus; 2913 event_phy_change = event_data->PHY; 2914 topo_change.phy_details = NULL; 2915 2916 if (!num_entries) 2917 goto out; 2918 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries, 2919 M_MPR, M_NOWAIT|M_ZERO); 2920 topo_change.phy_details = phy_change; 2921 if (!phy_change) 2922 goto out; 2923 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) { 2924 phy_change->dev_handle = le16toh(event_phy_change-> 2925 AttachedDevHandle); 2926 phy_change->reason = event_phy_change->PhyStatus & 2927 MPI2_EVENT_SAS_TOPO_RC_MASK; 2928 } 2929 _mapping_update_missing_count(sc, &topo_change); 2930 _mapping_get_dev_info(sc, &topo_change); 2931 _mapping_clear_removed_entries(sc); 2932 _mapping_add_new_device(sc, &topo_change); 2933 2934out: 2935 free(topo_change.phy_details, M_MPR); 2936 _mapping_flush_dpm_pages(sc); 2937 if (sc->pending_map_events) 2938 sc->pending_map_events--; 2939} 2940 2941/** 2942 * mpr_mapping_pcie_topology_change_event - handle PCIe topology change events 2943 * @sc: per adapter object 2944 * @event_data: event data payload 2945 * 2946 * Returns nothing. 2947 */ 2948void 2949mpr_mapping_pcie_topology_change_event(struct mpr_softc *sc, 2950 Mpi26EventDataPCIeTopologyChangeList_t *event_data) 2951{ 2952 struct _map_pcie_topology_change topo_change; 2953 struct _map_port_change *port_change; 2954 Mpi26EventPCIeTopoPortEntry_t *event_port_change; 2955 u8 i, num_entries; 2956 2957 topo_change.switch_dev_handle = le16toh(event_data->SwitchDevHandle); 2958 topo_change.enc_handle = le16toh(event_data->EnclosureHandle); 2959 num_entries = event_data->NumEntries; 2960 topo_change.num_entries = num_entries; 2961 topo_change.start_port_num = event_data->StartPortNum; 2962 topo_change.num_ports = event_data->NumPorts; 2963 topo_change.switch_status = event_data->SwitchStatus; 2964 event_port_change = event_data->PortEntry; 2965 topo_change.port_details = NULL; 2966 2967 if (!num_entries) 2968 goto out; 2969 port_change = malloc(sizeof(struct _map_port_change) * num_entries, 2970 M_MPR, M_NOWAIT|M_ZERO); 2971 topo_change.port_details = port_change; 2972 if (!port_change) 2973 goto out; 2974 for (i = 0; i < num_entries; i++, event_port_change++, port_change++) { 2975 port_change->dev_handle = le16toh(event_port_change-> 2976 AttachedDevHandle); 2977 port_change->reason = event_port_change->PortStatus; 2978 } 2979 _mapping_update_pcie_missing_count(sc, &topo_change); 2980 _mapping_get_pcie_dev_info(sc, &topo_change); 2981 _mapping_clear_removed_entries(sc); 2982 _mapping_add_new_pcie_device(sc, &topo_change); 2983 2984out: 2985 free(topo_change.port_details, M_MPR); 2986 _mapping_flush_dpm_pages(sc); 2987 if (sc->pending_map_events) 2988 sc->pending_map_events--; 2989} 2990 2991/** 2992 * mpr_mapping_ir_config_change_event - handle IR config change list events 2993 * @sc: per adapter object 2994 * @event_data: event data payload 2995 * 2996 * Returns nothing. 2997 */ 2998void 2999mpr_mapping_ir_config_change_event(struct mpr_softc *sc, 3000 Mpi2EventDataIrConfigChangeList_t *event_data) 3001{ 3002 Mpi2EventIrConfigElement_t *element; 3003 int i; 3004 u64 *wwid_table; 3005 u32 map_idx, flags; 3006 struct dev_mapping_table *mt_entry; 3007 u16 element_flags; 3008 3009 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPR, 3010 M_NOWAIT | M_ZERO); 3011 if (!wwid_table) 3012 goto out; 3013 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; 3014 flags = le32toh(event_data->Flags); 3015 3016 /* 3017 * For volume changes, get the WWID for the volume and put it in a 3018 * table to be used in the processing of the IR change event. 3019 */ 3020 for (i = 0; i < event_data->NumElements; i++, element++) { 3021 element_flags = le16toh(element->ElementFlags); 3022 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) && 3023 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) && 3024 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE) 3025 && (element->ReasonCode != 3026 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) 3027 continue; 3028 if ((element_flags & 3029 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) == 3030 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) { 3031 mpr_config_get_volume_wwid(sc, 3032 le16toh(element->VolDevHandle), &wwid_table[i]); 3033 } 3034 } 3035 3036 /* 3037 * Check the ReasonCode for each element in the IR event and Add/Remove 3038 * Volumes or Physical Disks of Volumes to/from the mapping table. Use 3039 * the WWIDs gotten above in wwid_table. 3040 */ 3041 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) 3042 goto out; 3043 else { 3044 element = (Mpi2EventIrConfigElement_t *)&event_data-> 3045 ConfigElement[0]; 3046 for (i = 0; i < event_data->NumElements; i++, element++) { 3047 if (element->ReasonCode == 3048 MPI2_EVENT_IR_CHANGE_RC_ADDED || 3049 element->ReasonCode == 3050 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) { 3051 map_idx = _mapping_get_ir_mt_idx_from_wwid 3052 (sc, wwid_table[i]); 3053 if (map_idx != MPR_MAPTABLE_BAD_IDX) { 3054 /* 3055 * The volume is already in the mapping 3056 * table. Just update it's info. 3057 */ 3058 mt_entry = &sc->mapping_table[map_idx]; 3059 mt_entry->id = map_idx; 3060 mt_entry->dev_handle = le16toh 3061 (element->VolDevHandle); 3062 mt_entry->device_info = 3063 MPR_DEV_RESERVED | MPR_MAP_IN_USE; 3064 _mapping_update_ir_missing_cnt(sc, 3065 map_idx, element, wwid_table[i]); 3066 continue; 3067 } 3068 3069 /* 3070 * Volume is not in mapping table yet. Find a 3071 * free entry in the mapping table at the 3072 * volume mapping locations. If no entries are 3073 * available, this is an error because it means 3074 * there are more volumes than can be mapped 3075 * and that should never happen for volumes. 3076 */ 3077 map_idx = _mapping_get_free_ir_mt_idx(sc); 3078 if (map_idx == MPR_MAPTABLE_BAD_IDX) 3079 { 3080 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, 3081 "%s: failed to add the volume with " 3082 "handle 0x%04x because there is no " 3083 "free space available in the " 3084 "mapping table\n", __func__, 3085 le16toh(element->VolDevHandle)); 3086 continue; 3087 } 3088 mt_entry = &sc->mapping_table[map_idx]; 3089 mt_entry->physical_id = wwid_table[i]; 3090 mt_entry->id = map_idx; 3091 mt_entry->dev_handle = le16toh(element-> 3092 VolDevHandle); 3093 mt_entry->device_info = MPR_DEV_RESERVED | 3094 MPR_MAP_IN_USE; 3095 _mapping_update_ir_missing_cnt(sc, map_idx, 3096 element, wwid_table[i]); 3097 } else if (element->ReasonCode == 3098 MPI2_EVENT_IR_CHANGE_RC_REMOVED) { 3099 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc, 3100 wwid_table[i]); 3101 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3102 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3103 "to remove a volume because it has " 3104 "already been removed.\n", 3105 __func__); 3106 continue; 3107 } 3108 _mapping_update_ir_missing_cnt(sc, map_idx, 3109 element, wwid_table[i]); 3110 } else if (element->ReasonCode == 3111 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) { 3112 map_idx = _mapping_get_mt_idx_from_handle(sc, 3113 le16toh(element->VolDevHandle)); 3114 if (map_idx == MPR_MAPTABLE_BAD_IDX) { 3115 mpr_dprint(sc, MPR_MAPPING,"%s: Failed " 3116 "to remove volume with handle " 3117 "0x%04x because it has already " 3118 "been removed.\n", __func__, 3119 le16toh(element->VolDevHandle)); 3120 continue; 3121 } 3122 mt_entry = &sc->mapping_table[map_idx]; 3123 _mapping_update_ir_missing_cnt(sc, map_idx, 3124 element, mt_entry->physical_id); 3125 } 3126 } 3127 } 3128 3129out: 3130 _mapping_flush_dpm_pages(sc); 3131 free(wwid_table, M_MPR); 3132 if (sc->pending_map_events) 3133 sc->pending_map_events--; 3134} 3135