1 /* 2 * Copyright (c) 2015, AVAGO Tech. All rights reserved. Author: Marian Choy 3 * Copyright (c) 2014, LSI Corp. All rights reserved. Author: Marian Choy 4 * Support: freebsdraid@avagotech.com 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * 1. Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 2. Redistributions 12 * in binary form must reproduce the above copyright notice, this list of 13 * conditions and the following disclaimer in the documentation and/or other 14 * materials provided with the distribution. 3. Neither the name of the 15 * <ORGANIZATION> nor the names of its contributors may be used to endorse or 16 * promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include "dev/mrsas/mrsas.h" 37 38 #include <cam/cam.h> 39 #include <cam/cam_ccb.h> 40 #include <cam/cam_sim.h> 41 #include <cam/cam_xpt_sim.h> 42 #include <cam/cam_debug.h> 43 #include <cam/cam_periph.h> 44 #include <cam/cam_xpt_periph.h> 45 46 #include <cam/scsi/scsi_all.h> 47 #include <cam/scsi/scsi_message.h> 48 #include <sys/taskqueue.h> 49 #include <sys/kernel.h> 50 51 52 #include <sys/time.h> /* XXX for pcpu.h */ 53 #include <sys/pcpu.h> /* XXX for PCPU_GET */ 54 55 #define smp_processor_id() PCPU_GET(cpuid) 56 57 /* 58 * Function prototypes 59 */ 60 int mrsas_cam_attach(struct mrsas_softc *sc); 61 int mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb); 62 int mrsas_bus_scan(struct mrsas_softc *sc); 63 int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim); 64 int 65 mrsas_map_request(struct mrsas_softc *sc, 66 struct mrsas_mpt_cmd *cmd, union ccb *ccb); 67 int 68 mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 69 union ccb *ccb); 70 int 71 mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 72 union ccb *ccb, struct cam_sim *sim); 73 int 74 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 75 union ccb *ccb, u_int32_t device_id, 76 MRSAS_RAID_SCSI_IO_REQUEST * io_request); 77 void mrsas_xpt_freeze(struct mrsas_softc *sc); 78 void mrsas_xpt_release(struct mrsas_softc *sc); 79 void mrsas_cam_detach(struct mrsas_softc *sc); 80 void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd); 81 void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd); 82 void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd); 83 void 84 mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo, 85 u_int32_t req_desc_hi); 86 void 87 mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request, 88 u_int8_t cdb_len, struct IO_REQUEST_INFO *io_info, union ccb *ccb, 89 MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag, 90 u_int32_t ld_block_size); 91 static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim); 92 static void mrsas_cam_poll(struct cam_sim *sim); 93 static void mrsas_action(struct cam_sim *sim, union ccb *ccb); 94 static void mrsas_scsiio_timeout(void *data); 95 static void 96 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, 97 int nseg, int error); 98 static int32_t 99 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim, 100 union ccb *ccb); 101 struct mrsas_mpt_cmd *mrsas_get_mpt_cmd(struct mrsas_softc *sc); 102 MRSAS_REQUEST_DESCRIPTOR_UNION * 103 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index); 104 105 extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map); 106 extern u_int32_t 107 MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map, 108 struct mrsas_softc *sc); 109 extern void mrsas_isr(void *arg); 110 extern void mrsas_aen_handler(struct mrsas_softc *sc); 111 extern u_int8_t 112 MR_BuildRaidContext(struct mrsas_softc *sc, 113 struct IO_REQUEST_INFO *io_info, RAID_CONTEXT * pRAID_Context, 114 MR_DRV_RAID_MAP_ALL * map); 115 extern u_int16_t 116 MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span, 117 MR_DRV_RAID_MAP_ALL * map); 118 extern u_int16_t 119 mrsas_get_updated_dev_handle(struct mrsas_softc *sc, 120 PLD_LOAD_BALANCE_INFO lbInfo, struct IO_REQUEST_INFO *io_info); 121 extern u_int8_t 122 megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm, 123 u_int64_t block, u_int32_t count); 124 125 126 /* 127 * mrsas_cam_attach: Main entry to CAM subsystem 128 * input: Adapter instance soft state 129 * 130 * This function is called from mrsas_attach() during initialization to perform 131 * SIM allocations and XPT bus registration. If the kernel version is 7.4 or 132 * earlier, it would also initiate a bus scan. 133 */ 134 int 135 mrsas_cam_attach(struct mrsas_softc *sc) 136 { 137 struct cam_devq *devq; 138 int mrsas_cam_depth; 139 140 mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS; 141 142 if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) { 143 device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n"); 144 return (ENOMEM); 145 } 146 /* 147 * Create SIM for bus 0 and register, also create path 148 */ 149 sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc, 150 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth, 151 mrsas_cam_depth, devq); 152 if (sc->sim_0 == NULL) { 153 cam_simq_free(devq); 154 device_printf(sc->mrsas_dev, "Cannot register SIM\n"); 155 return (ENXIO); 156 } 157 /* Initialize taskqueue for Event Handling */ 158 TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc); 159 sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO, 160 taskqueue_thread_enqueue, &sc->ev_tq); 161 162 /* Run the task queue with lowest priority */ 163 taskqueue_start_threads(&sc->ev_tq, 1, 255, "%s taskq", 164 device_get_nameunit(sc->mrsas_dev)); 165 mtx_lock(&sc->sim_lock); 166 if (xpt_bus_register(sc->sim_0, sc->mrsas_dev, 0) != CAM_SUCCESS) { 167 cam_sim_free(sc->sim_0, TRUE); /* passing true frees the devq */ 168 mtx_unlock(&sc->sim_lock); 169 return (ENXIO); 170 } 171 if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0), 172 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 173 xpt_bus_deregister(cam_sim_path(sc->sim_0)); 174 cam_sim_free(sc->sim_0, TRUE); /* passing true will free the 175 * devq */ 176 mtx_unlock(&sc->sim_lock); 177 return (ENXIO); 178 } 179 mtx_unlock(&sc->sim_lock); 180 181 /* 182 * Create SIM for bus 1 and register, also create path 183 */ 184 sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc, 185 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth, 186 mrsas_cam_depth, devq); 187 if (sc->sim_1 == NULL) { 188 cam_simq_free(devq); 189 device_printf(sc->mrsas_dev, "Cannot register SIM\n"); 190 return (ENXIO); 191 } 192 mtx_lock(&sc->sim_lock); 193 if (xpt_bus_register(sc->sim_1, sc->mrsas_dev, 1) != CAM_SUCCESS) { 194 cam_sim_free(sc->sim_1, TRUE); /* passing true frees the devq */ 195 mtx_unlock(&sc->sim_lock); 196 return (ENXIO); 197 } 198 if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1), 199 CAM_TARGET_WILDCARD, 200 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 201 xpt_bus_deregister(cam_sim_path(sc->sim_1)); 202 cam_sim_free(sc->sim_1, TRUE); 203 mtx_unlock(&sc->sim_lock); 204 return (ENXIO); 205 } 206 mtx_unlock(&sc->sim_lock); 207 208 #if (__FreeBSD_version <= 704000) 209 if (mrsas_bus_scan(sc)) { 210 device_printf(sc->mrsas_dev, "Error in bus scan.\n"); 211 return (1); 212 } 213 #endif 214 return (0); 215 } 216 217 /* 218 * mrsas_cam_detach: De-allocates and teardown CAM 219 * input: Adapter instance soft state 220 * 221 * De-registers and frees the paths and SIMs. 222 */ 223 void 224 mrsas_cam_detach(struct mrsas_softc *sc) 225 { 226 if (sc->ev_tq != NULL) 227 taskqueue_free(sc->ev_tq); 228 mtx_lock(&sc->sim_lock); 229 if (sc->path_0) 230 xpt_free_path(sc->path_0); 231 if (sc->sim_0) { 232 xpt_bus_deregister(cam_sim_path(sc->sim_0)); 233 cam_sim_free(sc->sim_0, FALSE); 234 } 235 if (sc->path_1) 236 xpt_free_path(sc->path_1); 237 if (sc->sim_1) { 238 xpt_bus_deregister(cam_sim_path(sc->sim_1)); 239 cam_sim_free(sc->sim_1, TRUE); 240 } 241 mtx_unlock(&sc->sim_lock); 242 } 243 244 /* 245 * mrsas_action: SIM callback entry point 246 * input: pointer to SIM pointer to CAM Control Block 247 * 248 * This function processes CAM subsystem requests. The type of request is stored 249 * in ccb->ccb_h.func_code. The preprocessor #ifdef is necessary because 250 * ccb->cpi.maxio is not supported for FreeBSD version 7.4 or earlier. 251 */ 252 static void 253 mrsas_action(struct cam_sim *sim, union ccb *ccb) 254 { 255 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim); 256 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 257 u_int32_t device_id; 258 259 switch (ccb->ccb_h.func_code) { 260 case XPT_SCSI_IO: 261 { 262 device_id = ccb_h->target_id; 263 264 /* 265 * bus 0 is LD, bus 1 is for system-PD 266 */ 267 if (cam_sim_bus(sim) == 1 && 268 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) { 269 ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 270 xpt_done(ccb); 271 } else { 272 if (mrsas_startio(sc, sim, ccb)) { 273 ccb->ccb_h.status |= CAM_REQ_INVALID; 274 xpt_done(ccb); 275 } 276 } 277 break; 278 } 279 case XPT_ABORT: 280 { 281 ccb->ccb_h.status = CAM_UA_ABORT; 282 xpt_done(ccb); 283 break; 284 } 285 case XPT_RESET_BUS: 286 { 287 xpt_done(ccb); 288 break; 289 } 290 case XPT_GET_TRAN_SETTINGS: 291 { 292 ccb->cts.protocol = PROTO_SCSI; 293 ccb->cts.protocol_version = SCSI_REV_2; 294 ccb->cts.transport = XPORT_SPI; 295 ccb->cts.transport_version = 2; 296 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC; 297 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB; 298 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 299 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 300 ccb->ccb_h.status = CAM_REQ_CMP; 301 xpt_done(ccb); 302 break; 303 } 304 case XPT_SET_TRAN_SETTINGS: 305 { 306 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 307 xpt_done(ccb); 308 break; 309 } 310 case XPT_CALC_GEOMETRY: 311 { 312 cam_calc_geometry(&ccb->ccg, 1); 313 xpt_done(ccb); 314 break; 315 } 316 case XPT_PATH_INQ: 317 { 318 ccb->cpi.version_num = 1; 319 ccb->cpi.hba_inquiry = 0; 320 ccb->cpi.target_sprt = 0; 321 #if (__FreeBSD_version >= 902001) 322 ccb->cpi.hba_misc = PIM_UNMAPPED; 323 #else 324 ccb->cpi.hba_misc = 0; 325 #endif 326 ccb->cpi.hba_eng_cnt = 0; 327 ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS; 328 ccb->cpi.unit_number = cam_sim_unit(sim); 329 ccb->cpi.bus_id = cam_sim_bus(sim); 330 ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID; 331 ccb->cpi.base_transfer_speed = 150000; 332 strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN); 333 strncpy(ccb->cpi.hba_vid, "AVAGO", HBA_IDLEN); 334 strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN); 335 ccb->cpi.transport = XPORT_SPI; 336 ccb->cpi.transport_version = 2; 337 ccb->cpi.protocol = PROTO_SCSI; 338 ccb->cpi.protocol_version = SCSI_REV_2; 339 if (ccb->cpi.bus_id == 0) 340 ccb->cpi.max_target = MRSAS_MAX_PD - 1; 341 else 342 ccb->cpi.max_target = MRSAS_MAX_LD_IDS - 1; 343 #if (__FreeBSD_version > 704000) 344 ccb->cpi.maxio = MRSAS_MAX_IO_SIZE; 345 #endif 346 ccb->ccb_h.status = CAM_REQ_CMP; 347 xpt_done(ccb); 348 break; 349 } 350 default: 351 { 352 ccb->ccb_h.status = CAM_REQ_INVALID; 353 xpt_done(ccb); 354 break; 355 } 356 } 357 } 358 359 /* 360 * mrsas_scsiio_timeout: Callback function for IO timed out 361 * input: mpt command context 362 * 363 * This function will execute after timeout value provided by ccb header from 364 * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO 365 * comming from CAM layer. This function is callback function for IO timeout 366 * and it runs in no-sleep context. Set do_timedout_reset in Adapter context 367 * so that it will execute OCR/Kill adpter from ocr_thread context. 368 */ 369 static void 370 mrsas_scsiio_timeout(void *data) 371 { 372 struct mrsas_mpt_cmd *cmd; 373 struct mrsas_softc *sc; 374 375 cmd = (struct mrsas_mpt_cmd *)data; 376 sc = cmd->sc; 377 378 if (cmd->ccb_ptr == NULL) { 379 printf("command timeout with NULL ccb\n"); 380 return; 381 } 382 /* 383 * Below callout is dummy entry so that it will be cancelled from 384 * mrsas_cmd_done(). Now Controller will go to OCR/Kill Adapter based 385 * on OCR enable/disable property of Controller from ocr_thread 386 * context. 387 */ 388 #if (__FreeBSD_version >= 1000510) 389 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0, 390 mrsas_scsiio_timeout, cmd, 0); 391 #else 392 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000, 393 mrsas_scsiio_timeout, cmd); 394 #endif 395 sc->do_timedout_reset = 1; 396 if (sc->ocr_thread_active) 397 wakeup(&sc->ocr_chan); 398 } 399 400 /* 401 * mrsas_startio: SCSI IO entry point 402 * input: Adapter instance soft state 403 * pointer to CAM Control Block 404 * 405 * This function is the SCSI IO entry point and it initiates IO processing. It 406 * copies the IO and depending if the IO is read/write or inquiry, it would 407 * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively. It returns 0 408 * if the command is sent to firmware successfully, otherwise it returns 1. 409 */ 410 static int32_t 411 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim, 412 union ccb *ccb) 413 { 414 struct mrsas_mpt_cmd *cmd; 415 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 416 struct ccb_scsiio *csio = &(ccb->csio); 417 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc; 418 419 if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 420 ccb->ccb_h.status = CAM_REQ_CMP; 421 xpt_done(ccb); 422 return (0); 423 } 424 ccb_h->status |= CAM_SIM_QUEUED; 425 cmd = mrsas_get_mpt_cmd(sc); 426 427 if (!cmd) { 428 ccb_h->status |= CAM_REQUEUE_REQ; 429 xpt_done(ccb); 430 return (0); 431 } 432 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 433 if (ccb_h->flags & CAM_DIR_IN) 434 cmd->flags |= MRSAS_DIR_IN; 435 if (ccb_h->flags & CAM_DIR_OUT) 436 cmd->flags |= MRSAS_DIR_OUT; 437 } else 438 cmd->flags = MRSAS_DIR_NONE; /* no data */ 439 440 /* For FreeBSD 9.2 and higher */ 441 #if (__FreeBSD_version >= 902001) 442 /* 443 * XXX We don't yet support physical addresses here. 444 */ 445 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) { 446 case CAM_DATA_PADDR: 447 case CAM_DATA_SG_PADDR: 448 device_printf(sc->mrsas_dev, "%s: physical addresses not supported\n", 449 __func__); 450 mrsas_release_mpt_cmd(cmd); 451 ccb_h->status = CAM_REQ_INVALID; 452 ccb_h->status &= ~CAM_SIM_QUEUED; 453 goto done; 454 case CAM_DATA_SG: 455 device_printf(sc->mrsas_dev, "%s: scatter gather is not supported\n", 456 __func__); 457 mrsas_release_mpt_cmd(cmd); 458 ccb_h->status = CAM_REQ_INVALID; 459 goto done; 460 case CAM_DATA_VADDR: 461 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) { 462 mrsas_release_mpt_cmd(cmd); 463 ccb_h->status = CAM_REQ_TOO_BIG; 464 goto done; 465 } 466 cmd->length = csio->dxfer_len; 467 if (cmd->length) 468 cmd->data = csio->data_ptr; 469 break; 470 case CAM_DATA_BIO: 471 cmd->length = csio->dxfer_len; 472 if (cmd->length) 473 cmd->data = csio->data_ptr; 474 break; 475 default: 476 ccb->ccb_h.status = CAM_REQ_INVALID; 477 goto done; 478 } 479 #else 480 if (!(ccb_h->flags & CAM_DATA_PHYS)) { /* Virtual data address */ 481 if (!(ccb_h->flags & CAM_SCATTER_VALID)) { 482 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) { 483 mrsas_release_mpt_cmd(cmd); 484 ccb_h->status = CAM_REQ_TOO_BIG; 485 goto done; 486 } 487 cmd->length = csio->dxfer_len; 488 if (cmd->length) 489 cmd->data = csio->data_ptr; 490 } else { 491 mrsas_release_mpt_cmd(cmd); 492 ccb_h->status = CAM_REQ_INVALID; 493 goto done; 494 } 495 } else { /* Data addresses are physical. */ 496 mrsas_release_mpt_cmd(cmd); 497 ccb_h->status = CAM_REQ_INVALID; 498 ccb_h->status &= ~CAM_SIM_QUEUED; 499 goto done; 500 } 501 #endif 502 /* save ccb ptr */ 503 cmd->ccb_ptr = ccb; 504 505 req_desc = mrsas_get_request_desc(sc, (cmd->index) - 1); 506 if (!req_desc) { 507 device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n"); 508 return (FAIL); 509 } 510 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION)); 511 cmd->request_desc = req_desc; 512 513 if (ccb_h->flags & CAM_CDB_POINTER) 514 bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len); 515 else 516 bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len); 517 mtx_lock(&sc->raidmap_lock); 518 519 /* Check for IO type READ-WRITE targeted for Logical Volume */ 520 if (mrsas_find_io_type(sim, ccb) == READ_WRITE_LDIO) { 521 /* Build READ-WRITE IO for Logical Volume */ 522 if (mrsas_build_ldio(sc, cmd, ccb)) { 523 device_printf(sc->mrsas_dev, "Build LDIO failed.\n"); 524 mtx_unlock(&sc->raidmap_lock); 525 return (1); 526 } 527 } else { 528 if (mrsas_build_dcdb(sc, cmd, ccb, sim)) { 529 device_printf(sc->mrsas_dev, "Build DCDB failed.\n"); 530 mtx_unlock(&sc->raidmap_lock); 531 return (1); 532 } 533 } 534 mtx_unlock(&sc->raidmap_lock); 535 536 if (cmd->flags == MRSAS_DIR_IN) /* from device */ 537 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ; 538 else if (cmd->flags == MRSAS_DIR_OUT) /* to device */ 539 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE; 540 541 cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING; 542 cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL) / 4; 543 cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr; 544 cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE; 545 546 req_desc = cmd->request_desc; 547 req_desc->SCSIIO.SMID = cmd->index; 548 549 /* 550 * Start timer for IO timeout. Default timeout value is 90 second. 551 */ 552 #if (__FreeBSD_version >= 1000510) 553 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0, 554 mrsas_scsiio_timeout, cmd, 0); 555 #else 556 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000, 557 mrsas_scsiio_timeout, cmd); 558 #endif 559 mrsas_atomic_inc(&sc->fw_outstanding); 560 561 if (mrsas_atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater) 562 sc->io_cmds_highwater++; 563 564 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high); 565 return (0); 566 567 done: 568 xpt_done(ccb); 569 return (0); 570 } 571 572 /* 573 * mrsas_find_io_type: Determines if IO is read/write or inquiry 574 * input: pointer to CAM Control Block 575 * 576 * This function determines if the IO is read/write or inquiry. It returns a 1 577 * if the IO is read/write and 0 if it is inquiry. 578 */ 579 int 580 mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb) 581 { 582 struct ccb_scsiio *csio = &(ccb->csio); 583 584 switch (csio->cdb_io.cdb_bytes[0]) { 585 case READ_10: 586 case WRITE_10: 587 case READ_12: 588 case WRITE_12: 589 case READ_6: 590 case WRITE_6: 591 case READ_16: 592 case WRITE_16: 593 return (cam_sim_bus(sim) ? 594 READ_WRITE_SYSPDIO : READ_WRITE_LDIO); 595 default: 596 return (cam_sim_bus(sim) ? 597 NON_READ_WRITE_SYSPDIO : NON_READ_WRITE_LDIO); 598 } 599 } 600 601 /* 602 * mrsas_get_mpt_cmd: Get a cmd from free command pool 603 * input: Adapter instance soft state 604 * 605 * This function removes an MPT command from the command free list and 606 * initializes it. 607 */ 608 struct mrsas_mpt_cmd * 609 mrsas_get_mpt_cmd(struct mrsas_softc *sc) 610 { 611 struct mrsas_mpt_cmd *cmd = NULL; 612 613 mtx_lock(&sc->mpt_cmd_pool_lock); 614 if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)) { 615 cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head); 616 TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next); 617 } 618 memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE); 619 cmd->data = NULL; 620 cmd->length = 0; 621 cmd->flags = 0; 622 cmd->error_code = 0; 623 cmd->load_balance = 0; 624 cmd->ccb_ptr = NULL; 625 mtx_unlock(&sc->mpt_cmd_pool_lock); 626 627 return cmd; 628 } 629 630 /* 631 * mrsas_release_mpt_cmd: Return a cmd to free command pool 632 * input: Command packet for return to free command pool 633 * 634 * This function returns an MPT command to the free command list. 635 */ 636 void 637 mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd) 638 { 639 struct mrsas_softc *sc = cmd->sc; 640 641 mtx_lock(&sc->mpt_cmd_pool_lock); 642 cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX; 643 TAILQ_INSERT_TAIL(&(sc->mrsas_mpt_cmd_list_head), cmd, next); 644 mtx_unlock(&sc->mpt_cmd_pool_lock); 645 646 return; 647 } 648 649 /* 650 * mrsas_get_request_desc: Get request descriptor from array 651 * input: Adapter instance soft state 652 * SMID index 653 * 654 * This function returns a pointer to the request descriptor. 655 */ 656 MRSAS_REQUEST_DESCRIPTOR_UNION * 657 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index) 658 { 659 u_int8_t *p; 660 661 if (index >= sc->max_fw_cmds) { 662 device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index); 663 return NULL; 664 } 665 p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index; 666 667 return (MRSAS_REQUEST_DESCRIPTOR_UNION *) p; 668 } 669 670 /* 671 * mrsas_build_ldio: Builds an LDIO command 672 * input: Adapter instance soft state 673 * Pointer to command packet 674 * Pointer to CCB 675 * 676 * This function builds the LDIO command packet. It returns 0 if the command is 677 * built successfully, otherwise it returns a 1. 678 */ 679 int 680 mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 681 union ccb *ccb) 682 { 683 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 684 struct ccb_scsiio *csio = &(ccb->csio); 685 u_int32_t device_id; 686 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 687 688 device_id = ccb_h->target_id; 689 690 io_request = cmd->io_request; 691 io_request->RaidContext.VirtualDiskTgtId = device_id; 692 io_request->RaidContext.status = 0; 693 io_request->RaidContext.exStatus = 0; 694 695 /* just the cdb len, other flags zero, and ORed-in later for FP */ 696 io_request->IoFlags = csio->cdb_len; 697 698 if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS) 699 device_printf(sc->mrsas_dev, "Build ldio or fpio error\n"); 700 701 io_request->DataLength = cmd->length; 702 703 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) { 704 if (cmd->sge_count > MRSAS_MAX_SGL) { 705 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds" 706 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge); 707 return (FAIL); 708 } 709 io_request->RaidContext.numSGE = cmd->sge_count; 710 } else { 711 device_printf(sc->mrsas_dev, "Data map/load failed.\n"); 712 return (FAIL); 713 } 714 return (0); 715 } 716 717 /* 718 * mrsas_setup_io: Set up data including Fast Path I/O 719 * input: Adapter instance soft state 720 * Pointer to command packet 721 * Pointer to CCB 722 * 723 * This function builds the DCDB inquiry command. It returns 0 if the command 724 * is built successfully, otherwise it returns a 1. 725 */ 726 int 727 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 728 union ccb *ccb, u_int32_t device_id, 729 MRSAS_RAID_SCSI_IO_REQUEST * io_request) 730 { 731 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 732 struct ccb_scsiio *csio = &(ccb->csio); 733 struct IO_REQUEST_INFO io_info; 734 MR_DRV_RAID_MAP_ALL *map_ptr; 735 u_int8_t fp_possible; 736 u_int32_t start_lba_hi, start_lba_lo, ld_block_size; 737 u_int32_t datalength = 0; 738 739 start_lba_lo = 0; 740 start_lba_hi = 0; 741 fp_possible = 0; 742 743 /* 744 * READ_6 (0x08) or WRITE_6 (0x0A) cdb 745 */ 746 if (csio->cdb_len == 6) { 747 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4]; 748 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[1] << 16) | 749 ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 8) | 750 (u_int32_t)csio->cdb_io.cdb_bytes[3]; 751 start_lba_lo &= 0x1FFFFF; 752 } 753 /* 754 * READ_10 (0x28) or WRITE_6 (0x2A) cdb 755 */ 756 else if (csio->cdb_len == 10) { 757 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] | 758 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8); 759 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 760 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 761 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 762 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 763 } 764 /* 765 * READ_12 (0xA8) or WRITE_12 (0xAA) cdb 766 */ 767 else if (csio->cdb_len == 12) { 768 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 | 769 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) | 770 ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) | 771 ((u_int32_t)csio->cdb_io.cdb_bytes[9]); 772 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 773 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 774 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 775 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 776 } 777 /* 778 * READ_16 (0x88) or WRITE_16 (0xx8A) cdb 779 */ 780 else if (csio->cdb_len == 16) { 781 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 | 782 ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) | 783 ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) | 784 ((u_int32_t)csio->cdb_io.cdb_bytes[13]); 785 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[6] << 24) | 786 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) | 787 (u_int32_t)csio->cdb_io.cdb_bytes[8] << 8 | 788 ((u_int32_t)csio->cdb_io.cdb_bytes[9]); 789 start_lba_hi = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 790 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 791 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 792 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 793 } 794 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO)); 795 io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo; 796 io_info.numBlocks = datalength; 797 io_info.ldTgtId = device_id; 798 799 switch (ccb_h->flags & CAM_DIR_MASK) { 800 case CAM_DIR_IN: 801 io_info.isRead = 1; 802 break; 803 case CAM_DIR_OUT: 804 io_info.isRead = 0; 805 break; 806 case CAM_DIR_NONE: 807 default: 808 mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK); 809 break; 810 } 811 812 map_ptr = sc->ld_drv_map[(sc->map_id & 1)]; 813 ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc); 814 815 if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES_EXT) || 816 (!sc->fast_path_io)) { 817 io_request->RaidContext.regLockFlags = 0; 818 fp_possible = 0; 819 } else { 820 if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr)) 821 fp_possible = io_info.fpOkForIo; 822 } 823 824 cmd->request_desc->SCSIIO.MSIxIndex = 825 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0; 826 827 828 if (fp_possible) { 829 mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr, 830 start_lba_lo, ld_block_size); 831 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 832 cmd->request_desc->SCSIIO.RequestFlags = 833 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << 834 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 835 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) { 836 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED) 837 cmd->request_desc->SCSIIO.RequestFlags = 838 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << 839 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 840 io_request->RaidContext.Type = MPI2_TYPE_CUDA; 841 io_request->RaidContext.nseg = 0x1; 842 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH; 843 io_request->RaidContext.regLockFlags |= 844 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA | 845 MR_RL_FLAGS_SEQ_NUM_ENABLE); 846 } 847 if ((sc->load_balance_info[device_id].loadBalanceFlag) && 848 (io_info.isRead)) { 849 io_info.devHandle = 850 mrsas_get_updated_dev_handle(sc, 851 &sc->load_balance_info[device_id], &io_info); 852 cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG; 853 cmd->pd_r1_lb = io_info.pd_after_lb; 854 } else 855 cmd->load_balance = 0; 856 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle; 857 io_request->DevHandle = io_info.devHandle; 858 } else { 859 /* Not FP IO */ 860 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec; 861 cmd->request_desc->SCSIIO.RequestFlags = 862 (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO << 863 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 864 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) { 865 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED) 866 cmd->request_desc->SCSIIO.RequestFlags = 867 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << 868 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 869 io_request->RaidContext.Type = MPI2_TYPE_CUDA; 870 io_request->RaidContext.regLockFlags |= 871 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 | 872 MR_RL_FLAGS_SEQ_NUM_ENABLE); 873 io_request->RaidContext.nseg = 0x1; 874 } 875 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 876 io_request->DevHandle = device_id; 877 } 878 return (0); 879 } 880 881 /* 882 * mrsas_build_dcdb: Builds an DCDB command 883 * input: Adapter instance soft state 884 * Pointer to command packet 885 * Pointer to CCB 886 * 887 * This function builds the DCDB inquiry command. It returns 0 if the command 888 * is built successfully, otherwise it returns a 1. 889 */ 890 int 891 mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 892 union ccb *ccb, struct cam_sim *sim) 893 { 894 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 895 u_int32_t device_id; 896 MR_DRV_RAID_MAP_ALL *map_ptr; 897 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 898 899 io_request = cmd->io_request; 900 device_id = ccb_h->target_id; 901 map_ptr = sc->ld_drv_map[(sc->map_id & 1)]; 902 903 /* 904 * Check if this is RW for system PD or 905 * it's a NON RW for sys PD and there is NO secure jbod FW support 906 */ 907 if (cam_sim_bus(sim) == 1 && 908 sc->pd_list[device_id].driveState == MR_PD_STATE_SYSTEM) { 909 910 io_request->DevHandle = 911 map_ptr->raidMap.devHndlInfo[device_id].curDevHdl; 912 io_request->RaidContext.RAIDFlags = 913 MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD << 914 MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT; 915 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle; 916 cmd->request_desc->SCSIIO.MSIxIndex = 917 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0; 918 919 if (sc->secure_jbod_support && (mrsas_find_io_type(sim, ccb) == NON_READ_WRITE_SYSPDIO)) { 920 /* system pd firmware path */ 921 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 922 cmd->request_desc->SCSIIO.RequestFlags = 923 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 924 } else { 925 /* system pd fast path */ 926 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 927 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec; 928 io_request->RaidContext.regLockFlags = 0; 929 io_request->RaidContext.regLockRowLBA = 0; 930 io_request->RaidContext.regLockLength = 0; 931 932 cmd->request_desc->SCSIIO.RequestFlags = 933 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << 934 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 935 936 /* 937 * NOTE - For system pd RW cmds only IoFlags will be FAST_PATH 938 * Because the NON RW cmds will now go via FW Queue 939 * and not the Exception queue 940 */ 941 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) 942 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH; 943 } 944 } else { 945 /* FW path for SysPD or LD Non-RW (SCSI management commands) */ 946 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 947 io_request->DevHandle = device_id; 948 cmd->request_desc->SCSIIO.RequestFlags = 949 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << 950 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 951 } 952 953 io_request->RaidContext.VirtualDiskTgtId = device_id; 954 io_request->LUN[1] = ccb_h->target_lun & 0xF; 955 io_request->DataLength = cmd->length; 956 957 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) { 958 if (cmd->sge_count > sc->max_num_sge) { 959 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds" 960 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge); 961 return (1); 962 } 963 io_request->RaidContext.numSGE = cmd->sge_count; 964 } else { 965 device_printf(sc->mrsas_dev, "Data map/load failed.\n"); 966 return (1); 967 } 968 return (0); 969 } 970 971 /* 972 * mrsas_map_request: Map and load data 973 * input: Adapter instance soft state 974 * Pointer to command packet 975 * 976 * For data from OS, map and load the data buffer into bus space. The SG list 977 * is built in the callback. If the bus dmamap load is not successful, 978 * cmd->error_code will contain the error code and a 1 is returned. 979 */ 980 int 981 mrsas_map_request(struct mrsas_softc *sc, 982 struct mrsas_mpt_cmd *cmd, union ccb *ccb) 983 { 984 u_int32_t retcode = 0; 985 struct cam_sim *sim; 986 987 sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path); 988 989 if (cmd->data != NULL) { 990 /* Map data buffer into bus space */ 991 mtx_lock(&sc->io_lock); 992 #if (__FreeBSD_version >= 902001) 993 retcode = bus_dmamap_load_ccb(sc->data_tag, cmd->data_dmamap, ccb, 994 mrsas_data_load_cb, cmd, 0); 995 #else 996 retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data, 997 cmd->length, mrsas_data_load_cb, cmd, BUS_DMA_NOWAIT); 998 #endif 999 mtx_unlock(&sc->io_lock); 1000 if (retcode) 1001 device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode); 1002 if (retcode == EINPROGRESS) { 1003 device_printf(sc->mrsas_dev, "request load in progress\n"); 1004 mrsas_freeze_simq(cmd, sim); 1005 } 1006 } 1007 if (cmd->error_code) 1008 return (1); 1009 return (retcode); 1010 } 1011 1012 /* 1013 * mrsas_unmap_request: Unmap and unload data 1014 * input: Adapter instance soft state 1015 * Pointer to command packet 1016 * 1017 * This function unmaps and unloads data from OS. 1018 */ 1019 void 1020 mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd) 1021 { 1022 if (cmd->data != NULL) { 1023 if (cmd->flags & MRSAS_DIR_IN) 1024 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD); 1025 if (cmd->flags & MRSAS_DIR_OUT) 1026 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE); 1027 mtx_lock(&sc->io_lock); 1028 bus_dmamap_unload(sc->data_tag, cmd->data_dmamap); 1029 mtx_unlock(&sc->io_lock); 1030 } 1031 } 1032 1033 /* 1034 * mrsas_data_load_cb: Callback entry point 1035 * input: Pointer to command packet as argument 1036 * Pointer to segment 1037 * Number of segments Error 1038 * 1039 * This is the callback function of the bus dma map load. It builds the SG 1040 * list. 1041 */ 1042 static void 1043 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1044 { 1045 struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg; 1046 struct mrsas_softc *sc = cmd->sc; 1047 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 1048 pMpi25IeeeSgeChain64_t sgl_ptr; 1049 int i = 0, sg_processed = 0; 1050 1051 if (error) { 1052 cmd->error_code = error; 1053 device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error); 1054 if (error == EFBIG) { 1055 cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG; 1056 return; 1057 } 1058 } 1059 if (cmd->flags & MRSAS_DIR_IN) 1060 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap, 1061 BUS_DMASYNC_PREREAD); 1062 if (cmd->flags & MRSAS_DIR_OUT) 1063 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap, 1064 BUS_DMASYNC_PREWRITE); 1065 if (nseg > sc->max_num_sge) { 1066 device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n"); 1067 return; 1068 } 1069 io_request = cmd->io_request; 1070 sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL; 1071 1072 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) { 1073 pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr; 1074 1075 sgl_ptr_end += sc->max_sge_in_main_msg - 1; 1076 sgl_ptr_end->Flags = 0; 1077 } 1078 if (nseg != 0) { 1079 for (i = 0; i < nseg; i++) { 1080 sgl_ptr->Address = segs[i].ds_addr; 1081 sgl_ptr->Length = segs[i].ds_len; 1082 sgl_ptr->Flags = 0; 1083 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) { 1084 if (i == nseg - 1) 1085 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST; 1086 } 1087 sgl_ptr++; 1088 sg_processed = i + 1; 1089 if ((sg_processed == (sc->max_sge_in_main_msg - 1)) && 1090 (nseg > sc->max_sge_in_main_msg)) { 1091 pMpi25IeeeSgeChain64_t sg_chain; 1092 1093 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) { 1094 if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) 1095 != MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) 1096 cmd->io_request->ChainOffset = sc->chain_offset_io_request; 1097 else 1098 cmd->io_request->ChainOffset = 0; 1099 } else 1100 cmd->io_request->ChainOffset = sc->chain_offset_io_request; 1101 sg_chain = sgl_ptr; 1102 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) 1103 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT; 1104 else 1105 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR); 1106 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed)); 1107 sg_chain->Address = cmd->chain_frame_phys_addr; 1108 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame; 1109 } 1110 } 1111 } 1112 cmd->sge_count = nseg; 1113 } 1114 1115 /* 1116 * mrsas_freeze_simq: Freeze SIM queue 1117 * input: Pointer to command packet 1118 * Pointer to SIM 1119 * 1120 * This function freezes the sim queue. 1121 */ 1122 static void 1123 mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim) 1124 { 1125 union ccb *ccb = (union ccb *)(cmd->ccb_ptr); 1126 1127 xpt_freeze_simq(sim, 1); 1128 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1129 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1130 } 1131 1132 void 1133 mrsas_xpt_freeze(struct mrsas_softc *sc) 1134 { 1135 xpt_freeze_simq(sc->sim_0, 1); 1136 xpt_freeze_simq(sc->sim_1, 1); 1137 } 1138 1139 void 1140 mrsas_xpt_release(struct mrsas_softc *sc) 1141 { 1142 xpt_release_simq(sc->sim_0, 1); 1143 xpt_release_simq(sc->sim_1, 1); 1144 } 1145 1146 /* 1147 * mrsas_cmd_done: Perform remaining command completion 1148 * input: Adapter instance soft state Pointer to command packet 1149 * 1150 * This function calls ummap request and releases the MPT command. 1151 */ 1152 void 1153 mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd) 1154 { 1155 callout_stop(&cmd->cm_callout); 1156 mrsas_unmap_request(sc, cmd); 1157 mtx_lock(&sc->sim_lock); 1158 xpt_done(cmd->ccb_ptr); 1159 cmd->ccb_ptr = NULL; 1160 mtx_unlock(&sc->sim_lock); 1161 mrsas_release_mpt_cmd(cmd); 1162 } 1163 1164 /* 1165 * mrsas_cam_poll: Polling entry point 1166 * input: Pointer to SIM 1167 * 1168 * This is currently a stub function. 1169 */ 1170 static void 1171 mrsas_cam_poll(struct cam_sim *sim) 1172 { 1173 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim); 1174 1175 mrsas_isr((void *)sc); 1176 } 1177 1178 /* 1179 * mrsas_bus_scan: Perform bus scan 1180 * input: Adapter instance soft state 1181 * 1182 * This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not 1183 * be called in FreeBSD 8.x and later versions, where the bus scan is 1184 * automatic. 1185 */ 1186 int 1187 mrsas_bus_scan(struct mrsas_softc *sc) 1188 { 1189 union ccb *ccb_0; 1190 union ccb *ccb_1; 1191 1192 if ((ccb_0 = xpt_alloc_ccb()) == NULL) { 1193 return (ENOMEM); 1194 } 1195 if ((ccb_1 = xpt_alloc_ccb()) == NULL) { 1196 xpt_free_ccb(ccb_0); 1197 return (ENOMEM); 1198 } 1199 mtx_lock(&sc->sim_lock); 1200 if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0), 1201 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1202 xpt_free_ccb(ccb_0); 1203 xpt_free_ccb(ccb_1); 1204 mtx_unlock(&sc->sim_lock); 1205 return (EIO); 1206 } 1207 if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1), 1208 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1209 xpt_free_ccb(ccb_0); 1210 xpt_free_ccb(ccb_1); 1211 mtx_unlock(&sc->sim_lock); 1212 return (EIO); 1213 } 1214 mtx_unlock(&sc->sim_lock); 1215 xpt_rescan(ccb_0); 1216 xpt_rescan(ccb_1); 1217 1218 return (0); 1219 } 1220 1221 /* 1222 * mrsas_bus_scan_sim: Perform bus scan per SIM 1223 * input: adapter instance soft state 1224 * 1225 * This function will be called from Event handler on LD creation/deletion, 1226 * JBOD on/off. 1227 */ 1228 int 1229 mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim) 1230 { 1231 union ccb *ccb; 1232 1233 if ((ccb = xpt_alloc_ccb()) == NULL) { 1234 return (ENOMEM); 1235 } 1236 mtx_lock(&sc->sim_lock); 1237 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim), 1238 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1239 xpt_free_ccb(ccb); 1240 mtx_unlock(&sc->sim_lock); 1241 return (EIO); 1242 } 1243 mtx_unlock(&sc->sim_lock); 1244 xpt_rescan(ccb); 1245 1246 return (0); 1247 } 1248