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_rw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 69 union ccb *ccb); 70 int 71 mrsas_build_ldio_nonrw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 72 union ccb *ccb); 73 int 74 mrsas_build_syspdio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 75 union ccb *ccb, struct cam_sim *sim, u_int8_t fp_possible); 76 int 77 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 78 union ccb *ccb, u_int32_t device_id, 79 MRSAS_RAID_SCSI_IO_REQUEST * io_request); 80 void mrsas_xpt_freeze(struct mrsas_softc *sc); 81 void mrsas_xpt_release(struct mrsas_softc *sc); 82 void mrsas_cam_detach(struct mrsas_softc *sc); 83 void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd); 84 void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd); 85 void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd); 86 void 87 mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo, 88 u_int32_t req_desc_hi); 89 void 90 mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request, 91 u_int8_t cdb_len, struct IO_REQUEST_INFO *io_info, union ccb *ccb, 92 MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag, 93 u_int32_t ld_block_size); 94 static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim); 95 static void mrsas_cam_poll(struct cam_sim *sim); 96 static void mrsas_action(struct cam_sim *sim, union ccb *ccb); 97 static void mrsas_scsiio_timeout(void *data); 98 static void 99 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, 100 int nseg, int error); 101 static int32_t 102 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim, 103 union ccb *ccb); 104 struct mrsas_mpt_cmd *mrsas_get_mpt_cmd(struct mrsas_softc *sc); 105 MRSAS_REQUEST_DESCRIPTOR_UNION * 106 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index); 107 108 extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map); 109 extern u_int32_t 110 MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map, 111 struct mrsas_softc *sc); 112 extern void mrsas_isr(void *arg); 113 extern void mrsas_aen_handler(struct mrsas_softc *sc); 114 extern u_int8_t 115 MR_BuildRaidContext(struct mrsas_softc *sc, 116 struct IO_REQUEST_INFO *io_info, RAID_CONTEXT * pRAID_Context, 117 MR_DRV_RAID_MAP_ALL * map); 118 extern u_int16_t 119 MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span, 120 MR_DRV_RAID_MAP_ALL * map); 121 extern u_int16_t 122 mrsas_get_updated_dev_handle(struct mrsas_softc *sc, 123 PLD_LOAD_BALANCE_INFO lbInfo, struct IO_REQUEST_INFO *io_info); 124 extern u_int8_t 125 megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm, 126 u_int64_t block, u_int32_t count); 127 extern int mrsas_complete_cmd(struct mrsas_softc *sc, u_int32_t MSIxIndex); 128 129 130 /* 131 * mrsas_cam_attach: Main entry to CAM subsystem 132 * input: Adapter instance soft state 133 * 134 * This function is called from mrsas_attach() during initialization to perform 135 * SIM allocations and XPT bus registration. If the kernel version is 7.4 or 136 * earlier, it would also initiate a bus scan. 137 */ 138 int 139 mrsas_cam_attach(struct mrsas_softc *sc) 140 { 141 struct cam_devq *devq; 142 int mrsas_cam_depth; 143 144 mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS; 145 146 if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) { 147 device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n"); 148 return (ENOMEM); 149 } 150 /* 151 * Create SIM for bus 0 and register, also create path 152 */ 153 sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc, 154 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth, 155 mrsas_cam_depth, devq); 156 if (sc->sim_0 == NULL) { 157 cam_simq_free(devq); 158 device_printf(sc->mrsas_dev, "Cannot register SIM\n"); 159 return (ENXIO); 160 } 161 /* Initialize taskqueue for Event Handling */ 162 TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc); 163 sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO, 164 taskqueue_thread_enqueue, &sc->ev_tq); 165 166 /* Run the task queue with lowest priority */ 167 taskqueue_start_threads(&sc->ev_tq, 1, 255, "%s taskq", 168 device_get_nameunit(sc->mrsas_dev)); 169 mtx_lock(&sc->sim_lock); 170 if (xpt_bus_register(sc->sim_0, sc->mrsas_dev, 0) != CAM_SUCCESS) { 171 cam_sim_free(sc->sim_0, TRUE); /* passing true frees the devq */ 172 mtx_unlock(&sc->sim_lock); 173 return (ENXIO); 174 } 175 if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0), 176 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 177 xpt_bus_deregister(cam_sim_path(sc->sim_0)); 178 cam_sim_free(sc->sim_0, TRUE); /* passing true will free the 179 * devq */ 180 mtx_unlock(&sc->sim_lock); 181 return (ENXIO); 182 } 183 mtx_unlock(&sc->sim_lock); 184 185 /* 186 * Create SIM for bus 1 and register, also create path 187 */ 188 sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc, 189 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth, 190 mrsas_cam_depth, devq); 191 if (sc->sim_1 == NULL) { 192 cam_simq_free(devq); 193 device_printf(sc->mrsas_dev, "Cannot register SIM\n"); 194 return (ENXIO); 195 } 196 mtx_lock(&sc->sim_lock); 197 if (xpt_bus_register(sc->sim_1, sc->mrsas_dev, 1) != CAM_SUCCESS) { 198 cam_sim_free(sc->sim_1, TRUE); /* passing true frees the devq */ 199 mtx_unlock(&sc->sim_lock); 200 return (ENXIO); 201 } 202 if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1), 203 CAM_TARGET_WILDCARD, 204 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 205 xpt_bus_deregister(cam_sim_path(sc->sim_1)); 206 cam_sim_free(sc->sim_1, TRUE); 207 mtx_unlock(&sc->sim_lock); 208 return (ENXIO); 209 } 210 mtx_unlock(&sc->sim_lock); 211 212 #if (__FreeBSD_version <= 704000) 213 if (mrsas_bus_scan(sc)) { 214 device_printf(sc->mrsas_dev, "Error in bus scan.\n"); 215 return (1); 216 } 217 #endif 218 return (0); 219 } 220 221 /* 222 * mrsas_cam_detach: De-allocates and teardown CAM 223 * input: Adapter instance soft state 224 * 225 * De-registers and frees the paths and SIMs. 226 */ 227 void 228 mrsas_cam_detach(struct mrsas_softc *sc) 229 { 230 if (sc->ev_tq != NULL) 231 taskqueue_free(sc->ev_tq); 232 mtx_lock(&sc->sim_lock); 233 if (sc->path_0) 234 xpt_free_path(sc->path_0); 235 if (sc->sim_0) { 236 xpt_bus_deregister(cam_sim_path(sc->sim_0)); 237 cam_sim_free(sc->sim_0, FALSE); 238 } 239 if (sc->path_1) 240 xpt_free_path(sc->path_1); 241 if (sc->sim_1) { 242 xpt_bus_deregister(cam_sim_path(sc->sim_1)); 243 cam_sim_free(sc->sim_1, TRUE); 244 } 245 mtx_unlock(&sc->sim_lock); 246 } 247 248 /* 249 * mrsas_action: SIM callback entry point 250 * input: pointer to SIM pointer to CAM Control Block 251 * 252 * This function processes CAM subsystem requests. The type of request is stored 253 * in ccb->ccb_h.func_code. The preprocessor #ifdef is necessary because 254 * ccb->cpi.maxio is not supported for FreeBSD version 7.4 or earlier. 255 */ 256 static void 257 mrsas_action(struct cam_sim *sim, union ccb *ccb) 258 { 259 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim); 260 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 261 u_int32_t device_id; 262 263 switch (ccb->ccb_h.func_code) { 264 case XPT_SCSI_IO: 265 { 266 device_id = ccb_h->target_id; 267 268 /* 269 * bus 0 is LD, bus 1 is for system-PD 270 */ 271 if (cam_sim_bus(sim) == 1 && 272 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) { 273 ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 274 xpt_done(ccb); 275 } else { 276 if (mrsas_startio(sc, sim, ccb)) { 277 ccb->ccb_h.status |= CAM_REQ_INVALID; 278 xpt_done(ccb); 279 } 280 } 281 break; 282 } 283 case XPT_ABORT: 284 { 285 ccb->ccb_h.status = CAM_UA_ABORT; 286 xpt_done(ccb); 287 break; 288 } 289 case XPT_RESET_BUS: 290 { 291 xpt_done(ccb); 292 break; 293 } 294 case XPT_GET_TRAN_SETTINGS: 295 { 296 ccb->cts.protocol = PROTO_SCSI; 297 ccb->cts.protocol_version = SCSI_REV_2; 298 ccb->cts.transport = XPORT_SPI; 299 ccb->cts.transport_version = 2; 300 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC; 301 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB; 302 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 303 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 304 ccb->ccb_h.status = CAM_REQ_CMP; 305 xpt_done(ccb); 306 break; 307 } 308 case XPT_SET_TRAN_SETTINGS: 309 { 310 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 311 xpt_done(ccb); 312 break; 313 } 314 case XPT_CALC_GEOMETRY: 315 { 316 cam_calc_geometry(&ccb->ccg, 1); 317 xpt_done(ccb); 318 break; 319 } 320 case XPT_PATH_INQ: 321 { 322 ccb->cpi.version_num = 1; 323 ccb->cpi.hba_inquiry = 0; 324 ccb->cpi.target_sprt = 0; 325 #if (__FreeBSD_version >= 902001) 326 ccb->cpi.hba_misc = PIM_UNMAPPED; 327 #else 328 ccb->cpi.hba_misc = 0; 329 #endif 330 ccb->cpi.hba_eng_cnt = 0; 331 ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS; 332 ccb->cpi.unit_number = cam_sim_unit(sim); 333 ccb->cpi.bus_id = cam_sim_bus(sim); 334 ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID; 335 ccb->cpi.base_transfer_speed = 150000; 336 strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN); 337 strncpy(ccb->cpi.hba_vid, "AVAGO", HBA_IDLEN); 338 strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN); 339 ccb->cpi.transport = XPORT_SPI; 340 ccb->cpi.transport_version = 2; 341 ccb->cpi.protocol = PROTO_SCSI; 342 ccb->cpi.protocol_version = SCSI_REV_2; 343 if (ccb->cpi.bus_id == 0) 344 ccb->cpi.max_target = MRSAS_MAX_PD - 1; 345 else 346 ccb->cpi.max_target = MRSAS_MAX_LD_IDS - 1; 347 #if (__FreeBSD_version > 704000) 348 ccb->cpi.maxio = sc->max_num_sge * MRSAS_PAGE_SIZE; 349 #endif 350 ccb->ccb_h.status = CAM_REQ_CMP; 351 xpt_done(ccb); 352 break; 353 } 354 default: 355 { 356 ccb->ccb_h.status = CAM_REQ_INVALID; 357 xpt_done(ccb); 358 break; 359 } 360 } 361 } 362 363 /* 364 * mrsas_scsiio_timeout: Callback function for IO timed out 365 * input: mpt command context 366 * 367 * This function will execute after timeout value provided by ccb header from 368 * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO 369 * coming from CAM layer. This function is callback function for IO timeout 370 * and it runs in no-sleep context. Set do_timedout_reset in Adapter context 371 * so that it will execute OCR/Kill adpter from ocr_thread context. 372 */ 373 static void 374 mrsas_scsiio_timeout(void *data) 375 { 376 struct mrsas_mpt_cmd *cmd; 377 struct mrsas_softc *sc; 378 379 cmd = (struct mrsas_mpt_cmd *)data; 380 sc = cmd->sc; 381 382 if (cmd->ccb_ptr == NULL) { 383 printf("command timeout with NULL ccb\n"); 384 return; 385 } 386 /* 387 * Below callout is dummy entry so that it will be cancelled from 388 * mrsas_cmd_done(). Now Controller will go to OCR/Kill Adapter based 389 * on OCR enable/disable property of Controller from ocr_thread 390 * context. 391 */ 392 #if (__FreeBSD_version >= 1000510) 393 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0, 394 mrsas_scsiio_timeout, cmd, 0); 395 #else 396 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000, 397 mrsas_scsiio_timeout, cmd); 398 #endif 399 sc->do_timedout_reset = SCSIIO_TIMEOUT_OCR; 400 if (sc->ocr_thread_active) 401 wakeup(&sc->ocr_chan); 402 } 403 404 /* 405 * mrsas_startio: SCSI IO entry point 406 * input: Adapter instance soft state 407 * pointer to CAM Control Block 408 * 409 * This function is the SCSI IO entry point and it initiates IO processing. It 410 * copies the IO and depending if the IO is read/write or inquiry, it would 411 * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively. It returns 0 412 * if the command is sent to firmware successfully, otherwise it returns 1. 413 */ 414 static int32_t 415 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim, 416 union ccb *ccb) 417 { 418 struct mrsas_mpt_cmd *cmd; 419 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 420 struct ccb_scsiio *csio = &(ccb->csio); 421 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc; 422 u_int8_t cmd_type; 423 424 if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 425 ccb->ccb_h.status = CAM_REQ_CMP; 426 xpt_done(ccb); 427 return (0); 428 } 429 ccb_h->status |= CAM_SIM_QUEUED; 430 cmd = mrsas_get_mpt_cmd(sc); 431 432 if (!cmd) { 433 ccb_h->status |= CAM_REQUEUE_REQ; 434 xpt_done(ccb); 435 return (0); 436 } 437 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 438 if (ccb_h->flags & CAM_DIR_IN) 439 cmd->flags |= MRSAS_DIR_IN; 440 if (ccb_h->flags & CAM_DIR_OUT) 441 cmd->flags |= MRSAS_DIR_OUT; 442 } else 443 cmd->flags = MRSAS_DIR_NONE; /* no data */ 444 445 /* For FreeBSD 9.2 and higher */ 446 #if (__FreeBSD_version >= 902001) 447 /* 448 * XXX We don't yet support physical addresses here. 449 */ 450 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) { 451 case CAM_DATA_PADDR: 452 case CAM_DATA_SG_PADDR: 453 device_printf(sc->mrsas_dev, "%s: physical addresses not supported\n", 454 __func__); 455 mrsas_release_mpt_cmd(cmd); 456 ccb_h->status = CAM_REQ_INVALID; 457 ccb_h->status &= ~CAM_SIM_QUEUED; 458 goto done; 459 case CAM_DATA_SG: 460 device_printf(sc->mrsas_dev, "%s: scatter gather is not supported\n", 461 __func__); 462 mrsas_release_mpt_cmd(cmd); 463 ccb_h->status = CAM_REQ_INVALID; 464 goto done; 465 case CAM_DATA_VADDR: 466 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) { 467 mrsas_release_mpt_cmd(cmd); 468 ccb_h->status = CAM_REQ_TOO_BIG; 469 goto done; 470 } 471 cmd->length = csio->dxfer_len; 472 if (cmd->length) 473 cmd->data = csio->data_ptr; 474 break; 475 case CAM_DATA_BIO: 476 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) { 477 mrsas_release_mpt_cmd(cmd); 478 ccb_h->status = CAM_REQ_TOO_BIG; 479 goto done; 480 } 481 cmd->length = csio->dxfer_len; 482 if (cmd->length) 483 cmd->data = csio->data_ptr; 484 break; 485 default: 486 ccb->ccb_h.status = CAM_REQ_INVALID; 487 goto done; 488 } 489 #else 490 if (!(ccb_h->flags & CAM_DATA_PHYS)) { /* Virtual data address */ 491 if (!(ccb_h->flags & CAM_SCATTER_VALID)) { 492 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) { 493 mrsas_release_mpt_cmd(cmd); 494 ccb_h->status = CAM_REQ_TOO_BIG; 495 goto done; 496 } 497 cmd->length = csio->dxfer_len; 498 if (cmd->length) 499 cmd->data = csio->data_ptr; 500 } else { 501 mrsas_release_mpt_cmd(cmd); 502 ccb_h->status = CAM_REQ_INVALID; 503 goto done; 504 } 505 } else { /* Data addresses are physical. */ 506 mrsas_release_mpt_cmd(cmd); 507 ccb_h->status = CAM_REQ_INVALID; 508 ccb_h->status &= ~CAM_SIM_QUEUED; 509 goto done; 510 } 511 #endif 512 /* save ccb ptr */ 513 cmd->ccb_ptr = ccb; 514 515 req_desc = mrsas_get_request_desc(sc, (cmd->index) - 1); 516 if (!req_desc) { 517 device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n"); 518 return (FAIL); 519 } 520 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION)); 521 cmd->request_desc = req_desc; 522 523 if (ccb_h->flags & CAM_CDB_POINTER) 524 bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len); 525 else 526 bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len); 527 mtx_lock(&sc->raidmap_lock); 528 529 /* Check for IO type READ-WRITE targeted for Logical Volume */ 530 cmd_type = mrsas_find_io_type(sim, ccb); 531 switch (cmd_type) { 532 case READ_WRITE_LDIO: 533 /* Build READ-WRITE IO for Logical Volume */ 534 if (mrsas_build_ldio_rw(sc, cmd, ccb)) { 535 device_printf(sc->mrsas_dev, "Build RW LDIO failed.\n"); 536 mtx_unlock(&sc->raidmap_lock); 537 return (1); 538 } 539 break; 540 case NON_READ_WRITE_LDIO: 541 /* Build NON READ-WRITE IO for Logical Volume */ 542 if (mrsas_build_ldio_nonrw(sc, cmd, ccb)) { 543 device_printf(sc->mrsas_dev, "Build NON-RW LDIO failed.\n"); 544 mtx_unlock(&sc->raidmap_lock); 545 return (1); 546 } 547 break; 548 case READ_WRITE_SYSPDIO: 549 case NON_READ_WRITE_SYSPDIO: 550 if (sc->secure_jbod_support && 551 (cmd_type == NON_READ_WRITE_SYSPDIO)) { 552 /* Build NON-RW IO for JBOD */ 553 if (mrsas_build_syspdio(sc, cmd, ccb, sim, 0)) { 554 device_printf(sc->mrsas_dev, 555 "Build SYSPDIO failed.\n"); 556 mtx_unlock(&sc->raidmap_lock); 557 return (1); 558 } 559 } else { 560 /* Build RW IO for JBOD */ 561 if (mrsas_build_syspdio(sc, cmd, ccb, sim, 1)) { 562 device_printf(sc->mrsas_dev, 563 "Build SYSPDIO failed.\n"); 564 mtx_unlock(&sc->raidmap_lock); 565 return (1); 566 } 567 } 568 } 569 mtx_unlock(&sc->raidmap_lock); 570 571 if (cmd->flags == MRSAS_DIR_IN) /* from device */ 572 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ; 573 else if (cmd->flags == MRSAS_DIR_OUT) /* to device */ 574 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE; 575 576 cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING; 577 cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL) / 4; 578 cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr; 579 cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE; 580 581 req_desc = cmd->request_desc; 582 req_desc->SCSIIO.SMID = cmd->index; 583 584 /* 585 * Start timer for IO timeout. Default timeout value is 90 second. 586 */ 587 #if (__FreeBSD_version >= 1000510) 588 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0, 589 mrsas_scsiio_timeout, cmd, 0); 590 #else 591 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000, 592 mrsas_scsiio_timeout, cmd); 593 #endif 594 mrsas_atomic_inc(&sc->fw_outstanding); 595 596 if (mrsas_atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater) 597 sc->io_cmds_highwater++; 598 599 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high); 600 return (0); 601 602 done: 603 xpt_done(ccb); 604 return (0); 605 } 606 607 /* 608 * mrsas_find_io_type: Determines if IO is read/write or inquiry 609 * input: pointer to CAM Control Block 610 * 611 * This function determines if the IO is read/write or inquiry. It returns a 1 612 * if the IO is read/write and 0 if it is inquiry. 613 */ 614 int 615 mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb) 616 { 617 struct ccb_scsiio *csio = &(ccb->csio); 618 619 switch (csio->cdb_io.cdb_bytes[0]) { 620 case READ_10: 621 case WRITE_10: 622 case READ_12: 623 case WRITE_12: 624 case READ_6: 625 case WRITE_6: 626 case READ_16: 627 case WRITE_16: 628 return (cam_sim_bus(sim) ? 629 READ_WRITE_SYSPDIO : READ_WRITE_LDIO); 630 default: 631 return (cam_sim_bus(sim) ? 632 NON_READ_WRITE_SYSPDIO : NON_READ_WRITE_LDIO); 633 } 634 } 635 636 /* 637 * mrsas_get_mpt_cmd: Get a cmd from free command pool 638 * input: Adapter instance soft state 639 * 640 * This function removes an MPT command from the command free list and 641 * initializes it. 642 */ 643 struct mrsas_mpt_cmd * 644 mrsas_get_mpt_cmd(struct mrsas_softc *sc) 645 { 646 struct mrsas_mpt_cmd *cmd = NULL; 647 648 mtx_lock(&sc->mpt_cmd_pool_lock); 649 if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)) { 650 cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head); 651 TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next); 652 } else { 653 goto out; 654 } 655 656 memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE); 657 cmd->data = NULL; 658 cmd->length = 0; 659 cmd->flags = 0; 660 cmd->error_code = 0; 661 cmd->load_balance = 0; 662 cmd->ccb_ptr = NULL; 663 664 out: 665 mtx_unlock(&sc->mpt_cmd_pool_lock); 666 return cmd; 667 } 668 669 /* 670 * mrsas_release_mpt_cmd: Return a cmd to free command pool 671 * input: Command packet for return to free command pool 672 * 673 * This function returns an MPT command to the free command list. 674 */ 675 void 676 mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd) 677 { 678 struct mrsas_softc *sc = cmd->sc; 679 680 mtx_lock(&sc->mpt_cmd_pool_lock); 681 cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX; 682 TAILQ_INSERT_TAIL(&(sc->mrsas_mpt_cmd_list_head), cmd, next); 683 mtx_unlock(&sc->mpt_cmd_pool_lock); 684 685 return; 686 } 687 688 /* 689 * mrsas_get_request_desc: Get request descriptor from array 690 * input: Adapter instance soft state 691 * SMID index 692 * 693 * This function returns a pointer to the request descriptor. 694 */ 695 MRSAS_REQUEST_DESCRIPTOR_UNION * 696 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index) 697 { 698 u_int8_t *p; 699 700 if (index >= sc->max_fw_cmds) { 701 device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index); 702 return NULL; 703 } 704 p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index; 705 706 return (MRSAS_REQUEST_DESCRIPTOR_UNION *) p; 707 } 708 709 /* 710 * mrsas_build_ldio_rw: Builds an LDIO command 711 * input: Adapter instance soft state 712 * Pointer to command packet 713 * Pointer to CCB 714 * 715 * This function builds the LDIO command packet. It returns 0 if the command is 716 * built successfully, otherwise it returns a 1. 717 */ 718 int 719 mrsas_build_ldio_rw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 720 union ccb *ccb) 721 { 722 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 723 struct ccb_scsiio *csio = &(ccb->csio); 724 u_int32_t device_id; 725 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 726 727 device_id = ccb_h->target_id; 728 729 io_request = cmd->io_request; 730 io_request->RaidContext.VirtualDiskTgtId = device_id; 731 io_request->RaidContext.status = 0; 732 io_request->RaidContext.exStatus = 0; 733 734 /* just the cdb len, other flags zero, and ORed-in later for FP */ 735 io_request->IoFlags = csio->cdb_len; 736 737 if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS) 738 device_printf(sc->mrsas_dev, "Build ldio or fpio error\n"); 739 740 io_request->DataLength = cmd->length; 741 742 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) { 743 if (cmd->sge_count > sc->max_num_sge) { 744 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds" 745 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge); 746 return (FAIL); 747 } 748 /* 749 * numSGE store lower 8 bit of sge_count. numSGEExt store 750 * higher 8 bit of sge_count 751 */ 752 io_request->RaidContext.numSGE = cmd->sge_count; 753 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8); 754 755 } else { 756 device_printf(sc->mrsas_dev, "Data map/load failed.\n"); 757 return (FAIL); 758 } 759 return (0); 760 } 761 762 /* 763 * mrsas_setup_io: Set up data including Fast Path I/O 764 * input: Adapter instance soft state 765 * Pointer to command packet 766 * Pointer to CCB 767 * 768 * This function builds the DCDB inquiry command. It returns 0 if the command 769 * is built successfully, otherwise it returns a 1. 770 */ 771 int 772 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 773 union ccb *ccb, u_int32_t device_id, 774 MRSAS_RAID_SCSI_IO_REQUEST * io_request) 775 { 776 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 777 struct ccb_scsiio *csio = &(ccb->csio); 778 struct IO_REQUEST_INFO io_info; 779 MR_DRV_RAID_MAP_ALL *map_ptr; 780 u_int8_t fp_possible; 781 u_int32_t start_lba_hi, start_lba_lo, ld_block_size; 782 u_int32_t datalength = 0; 783 784 start_lba_lo = 0; 785 start_lba_hi = 0; 786 fp_possible = 0; 787 788 /* 789 * READ_6 (0x08) or WRITE_6 (0x0A) cdb 790 */ 791 if (csio->cdb_len == 6) { 792 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4]; 793 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[1] << 16) | 794 ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 8) | 795 (u_int32_t)csio->cdb_io.cdb_bytes[3]; 796 start_lba_lo &= 0x1FFFFF; 797 } 798 /* 799 * READ_10 (0x28) or WRITE_6 (0x2A) cdb 800 */ 801 else if (csio->cdb_len == 10) { 802 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] | 803 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8); 804 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 805 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 806 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 807 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 808 } 809 /* 810 * READ_12 (0xA8) or WRITE_12 (0xAA) cdb 811 */ 812 else if (csio->cdb_len == 12) { 813 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 | 814 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) | 815 ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) | 816 ((u_int32_t)csio->cdb_io.cdb_bytes[9]); 817 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 818 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 819 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 820 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 821 } 822 /* 823 * READ_16 (0x88) or WRITE_16 (0xx8A) cdb 824 */ 825 else if (csio->cdb_len == 16) { 826 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 | 827 ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) | 828 ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) | 829 ((u_int32_t)csio->cdb_io.cdb_bytes[13]); 830 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[6] << 24) | 831 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) | 832 (u_int32_t)csio->cdb_io.cdb_bytes[8] << 8 | 833 ((u_int32_t)csio->cdb_io.cdb_bytes[9]); 834 start_lba_hi = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) | 835 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) | 836 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 | 837 ((u_int32_t)csio->cdb_io.cdb_bytes[5]); 838 } 839 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO)); 840 io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo; 841 io_info.numBlocks = datalength; 842 io_info.ldTgtId = device_id; 843 844 switch (ccb_h->flags & CAM_DIR_MASK) { 845 case CAM_DIR_IN: 846 io_info.isRead = 1; 847 break; 848 case CAM_DIR_OUT: 849 io_info.isRead = 0; 850 break; 851 case CAM_DIR_NONE: 852 default: 853 mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK); 854 break; 855 } 856 857 map_ptr = sc->ld_drv_map[(sc->map_id & 1)]; 858 ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc); 859 860 if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES_EXT) || 861 (!sc->fast_path_io)) { 862 io_request->RaidContext.regLockFlags = 0; 863 fp_possible = 0; 864 } else { 865 if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr)) 866 fp_possible = io_info.fpOkForIo; 867 } 868 869 cmd->request_desc->SCSIIO.MSIxIndex = 870 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0; 871 872 873 if (fp_possible) { 874 mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr, 875 start_lba_lo, ld_block_size); 876 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 877 cmd->request_desc->SCSIIO.RequestFlags = 878 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << 879 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 880 if ((sc->device_id == MRSAS_INVADER) || 881 (sc->device_id == MRSAS_FURY) || 882 (sc->device_id == MRSAS_INTRUDER) || 883 (sc->device_id == MRSAS_INTRUDER_24) || 884 (sc->device_id == MRSAS_CUTLASS_52) || 885 (sc->device_id == MRSAS_CUTLASS_53)) { 886 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED) 887 cmd->request_desc->SCSIIO.RequestFlags = 888 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << 889 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 890 io_request->RaidContext.Type = MPI2_TYPE_CUDA; 891 io_request->RaidContext.nseg = 0x1; 892 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH; 893 io_request->RaidContext.regLockFlags |= 894 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA | 895 MR_RL_FLAGS_SEQ_NUM_ENABLE); 896 } 897 if ((sc->load_balance_info[device_id].loadBalanceFlag) && 898 (io_info.isRead)) { 899 io_info.devHandle = 900 mrsas_get_updated_dev_handle(sc, 901 &sc->load_balance_info[device_id], &io_info); 902 cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG; 903 cmd->pd_r1_lb = io_info.pd_after_lb; 904 } else 905 cmd->load_balance = 0; 906 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle; 907 io_request->DevHandle = io_info.devHandle; 908 } else { 909 /* Not FP IO */ 910 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec; 911 cmd->request_desc->SCSIIO.RequestFlags = 912 (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO << 913 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 914 if ((sc->device_id == MRSAS_INVADER) || 915 (sc->device_id == MRSAS_FURY) || 916 (sc->device_id == MRSAS_INTRUDER) || 917 (sc->device_id == MRSAS_INTRUDER_24) || 918 (sc->device_id == MRSAS_CUTLASS_52) || 919 (sc->device_id == MRSAS_CUTLASS_53)) { 920 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED) 921 cmd->request_desc->SCSIIO.RequestFlags = 922 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << 923 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 924 io_request->RaidContext.Type = MPI2_TYPE_CUDA; 925 io_request->RaidContext.regLockFlags |= 926 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 | 927 MR_RL_FLAGS_SEQ_NUM_ENABLE); 928 io_request->RaidContext.nseg = 0x1; 929 } 930 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 931 io_request->DevHandle = device_id; 932 } 933 return (0); 934 } 935 936 /* 937 * mrsas_build_ldio_nonrw: Builds an LDIO command 938 * input: Adapter instance soft state 939 * Pointer to command packet 940 * Pointer to CCB 941 * 942 * This function builds the LDIO command packet. It returns 0 if the command is 943 * built successfully, otherwise it returns a 1. 944 */ 945 int 946 mrsas_build_ldio_nonrw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 947 union ccb *ccb) 948 { 949 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 950 u_int32_t device_id; 951 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 952 953 io_request = cmd->io_request; 954 device_id = ccb_h->target_id; 955 956 /* FW path for LD Non-RW (SCSI management commands) */ 957 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 958 io_request->DevHandle = device_id; 959 cmd->request_desc->SCSIIO.RequestFlags = 960 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << 961 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 962 963 io_request->RaidContext.VirtualDiskTgtId = device_id; 964 io_request->LUN[1] = ccb_h->target_lun & 0xF; 965 io_request->DataLength = cmd->length; 966 967 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) { 968 if (cmd->sge_count > sc->max_num_sge) { 969 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds" 970 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge); 971 return (1); 972 } 973 /* 974 * numSGE store lower 8 bit of sge_count. numSGEExt store 975 * higher 8 bit of sge_count 976 */ 977 io_request->RaidContext.numSGE = cmd->sge_count; 978 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8); 979 } else { 980 device_printf(sc->mrsas_dev, "Data map/load failed.\n"); 981 return (1); 982 } 983 return (0); 984 } 985 986 /* 987 * mrsas_build_syspdio: Builds an DCDB command 988 * input: Adapter instance soft state 989 * Pointer to command packet 990 * Pointer to CCB 991 * 992 * This function builds the DCDB inquiry command. It returns 0 if the command 993 * is built successfully, otherwise it returns a 1. 994 */ 995 int 996 mrsas_build_syspdio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd, 997 union ccb *ccb, struct cam_sim *sim, u_int8_t fp_possible) 998 { 999 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 1000 u_int32_t device_id; 1001 MR_DRV_RAID_MAP_ALL *local_map_ptr; 1002 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 1003 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1004 1005 pd_sync = (void *)sc->jbodmap_mem[(sc->pd_seq_map_id - 1) & 1]; 1006 1007 io_request = cmd->io_request; 1008 device_id = ccb_h->target_id; 1009 local_map_ptr = sc->ld_drv_map[(sc->map_id & 1)]; 1010 io_request->RaidContext.RAIDFlags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD 1011 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT; 1012 io_request->RaidContext.regLockFlags = 0; 1013 io_request->RaidContext.regLockRowLBA = 0; 1014 io_request->RaidContext.regLockLength = 0; 1015 1016 /* If FW supports PD sequence number */ 1017 if (sc->use_seqnum_jbod_fp && 1018 sc->pd_list[device_id].driveType == 0x00) { 1019 //printf("Using Drv seq num\n"); 1020 io_request->RaidContext.VirtualDiskTgtId = device_id + 255; 1021 io_request->RaidContext.configSeqNum = pd_sync->seq[device_id].seqNum; 1022 io_request->DevHandle = pd_sync->seq[device_id].devHandle; 1023 io_request->RaidContext.regLockFlags |= 1024 (MR_RL_FLAGS_SEQ_NUM_ENABLE | MR_RL_FLAGS_GRANT_DESTINATION_CUDA); 1025 io_request->RaidContext.Type = MPI2_TYPE_CUDA; 1026 io_request->RaidContext.nseg = 0x1; 1027 } else if (sc->fast_path_io) { 1028 //printf("Using LD RAID map\n"); 1029 io_request->RaidContext.VirtualDiskTgtId = device_id; 1030 io_request->RaidContext.configSeqNum = 0; 1031 local_map_ptr = sc->ld_drv_map[(sc->map_id & 1)]; 1032 io_request->DevHandle = 1033 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl; 1034 } else { 1035 //printf("Using FW PATH\n"); 1036 /* Want to send all IO via FW path */ 1037 io_request->RaidContext.VirtualDiskTgtId = device_id; 1038 io_request->RaidContext.configSeqNum = 0; 1039 io_request->DevHandle = 0xFFFF; 1040 } 1041 1042 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle; 1043 cmd->request_desc->SCSIIO.MSIxIndex = 1044 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0; 1045 1046 if (!fp_possible) { 1047 /* system pd firmware path */ 1048 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST; 1049 cmd->request_desc->SCSIIO.RequestFlags = 1050 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << 1051 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 1052 io_request->RaidContext.timeoutValue = 1053 local_map_ptr->raidMap.fpPdIoTimeoutSec; 1054 io_request->RaidContext.VirtualDiskTgtId = device_id; 1055 } else { 1056 /* system pd fast path */ 1057 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 1058 io_request->RaidContext.timeoutValue = local_map_ptr->raidMap.fpPdIoTimeoutSec; 1059 1060 /* 1061 * NOTE - For system pd RW cmds only IoFlags will be FAST_PATH 1062 * Because the NON RW cmds will now go via FW Queue 1063 * and not the Exception queue 1064 */ 1065 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH; 1066 1067 cmd->request_desc->SCSIIO.RequestFlags = 1068 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << 1069 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); 1070 } 1071 1072 io_request->LUN[1] = ccb_h->target_lun & 0xF; 1073 io_request->DataLength = cmd->length; 1074 1075 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) { 1076 if (cmd->sge_count > sc->max_num_sge) { 1077 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds" 1078 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge); 1079 return (1); 1080 } 1081 /* 1082 * numSGE store lower 8 bit of sge_count. numSGEExt store 1083 * higher 8 bit of sge_count 1084 */ 1085 io_request->RaidContext.numSGE = cmd->sge_count; 1086 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8); 1087 } else { 1088 device_printf(sc->mrsas_dev, "Data map/load failed.\n"); 1089 return (1); 1090 } 1091 return (0); 1092 } 1093 1094 /* 1095 * mrsas_map_request: Map and load data 1096 * input: Adapter instance soft state 1097 * Pointer to command packet 1098 * 1099 * For data from OS, map and load the data buffer into bus space. The SG list 1100 * is built in the callback. If the bus dmamap load is not successful, 1101 * cmd->error_code will contain the error code and a 1 is returned. 1102 */ 1103 int 1104 mrsas_map_request(struct mrsas_softc *sc, 1105 struct mrsas_mpt_cmd *cmd, union ccb *ccb) 1106 { 1107 u_int32_t retcode = 0; 1108 struct cam_sim *sim; 1109 1110 sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path); 1111 1112 if (cmd->data != NULL) { 1113 /* Map data buffer into bus space */ 1114 mtx_lock(&sc->io_lock); 1115 #if (__FreeBSD_version >= 902001) 1116 retcode = bus_dmamap_load_ccb(sc->data_tag, cmd->data_dmamap, ccb, 1117 mrsas_data_load_cb, cmd, 0); 1118 #else 1119 retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data, 1120 cmd->length, mrsas_data_load_cb, cmd, BUS_DMA_NOWAIT); 1121 #endif 1122 mtx_unlock(&sc->io_lock); 1123 if (retcode) 1124 device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode); 1125 if (retcode == EINPROGRESS) { 1126 device_printf(sc->mrsas_dev, "request load in progress\n"); 1127 mrsas_freeze_simq(cmd, sim); 1128 } 1129 } 1130 if (cmd->error_code) 1131 return (1); 1132 return (retcode); 1133 } 1134 1135 /* 1136 * mrsas_unmap_request: Unmap and unload data 1137 * input: Adapter instance soft state 1138 * Pointer to command packet 1139 * 1140 * This function unmaps and unloads data from OS. 1141 */ 1142 void 1143 mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd) 1144 { 1145 if (cmd->data != NULL) { 1146 if (cmd->flags & MRSAS_DIR_IN) 1147 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD); 1148 if (cmd->flags & MRSAS_DIR_OUT) 1149 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE); 1150 mtx_lock(&sc->io_lock); 1151 bus_dmamap_unload(sc->data_tag, cmd->data_dmamap); 1152 mtx_unlock(&sc->io_lock); 1153 } 1154 } 1155 1156 /* 1157 * mrsas_data_load_cb: Callback entry point 1158 * input: Pointer to command packet as argument 1159 * Pointer to segment 1160 * Number of segments Error 1161 * 1162 * This is the callback function of the bus dma map load. It builds the SG 1163 * list. 1164 */ 1165 static void 1166 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1167 { 1168 struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg; 1169 struct mrsas_softc *sc = cmd->sc; 1170 MRSAS_RAID_SCSI_IO_REQUEST *io_request; 1171 pMpi25IeeeSgeChain64_t sgl_ptr; 1172 int i = 0, sg_processed = 0; 1173 1174 if (error) { 1175 cmd->error_code = error; 1176 device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error); 1177 if (error == EFBIG) { 1178 cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG; 1179 return; 1180 } 1181 } 1182 if (cmd->flags & MRSAS_DIR_IN) 1183 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap, 1184 BUS_DMASYNC_PREREAD); 1185 if (cmd->flags & MRSAS_DIR_OUT) 1186 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap, 1187 BUS_DMASYNC_PREWRITE); 1188 if (nseg > sc->max_num_sge) { 1189 device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n"); 1190 return; 1191 } 1192 io_request = cmd->io_request; 1193 sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL; 1194 1195 if ((sc->device_id == MRSAS_INVADER) || 1196 (sc->device_id == MRSAS_FURY) || 1197 (sc->device_id == MRSAS_INTRUDER) || 1198 (sc->device_id == MRSAS_INTRUDER_24) || 1199 (sc->device_id == MRSAS_CUTLASS_52) || 1200 (sc->device_id == MRSAS_CUTLASS_53)) { 1201 pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr; 1202 1203 sgl_ptr_end += sc->max_sge_in_main_msg - 1; 1204 sgl_ptr_end->Flags = 0; 1205 } 1206 if (nseg != 0) { 1207 for (i = 0; i < nseg; i++) { 1208 sgl_ptr->Address = segs[i].ds_addr; 1209 sgl_ptr->Length = segs[i].ds_len; 1210 sgl_ptr->Flags = 0; 1211 if ((sc->device_id == MRSAS_INVADER) || 1212 (sc->device_id == MRSAS_FURY) || 1213 (sc->device_id == MRSAS_INTRUDER) || 1214 (sc->device_id == MRSAS_INTRUDER_24) || 1215 (sc->device_id == MRSAS_CUTLASS_52) || 1216 (sc->device_id == MRSAS_CUTLASS_53)) { 1217 if (i == nseg - 1) 1218 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST; 1219 } 1220 sgl_ptr++; 1221 sg_processed = i + 1; 1222 if ((sg_processed == (sc->max_sge_in_main_msg - 1)) && 1223 (nseg > sc->max_sge_in_main_msg)) { 1224 pMpi25IeeeSgeChain64_t sg_chain; 1225 1226 if ((sc->device_id == MRSAS_INVADER) || 1227 (sc->device_id == MRSAS_FURY) || 1228 (sc->device_id == MRSAS_INTRUDER) || 1229 (sc->device_id == MRSAS_INTRUDER_24) || 1230 (sc->device_id == MRSAS_CUTLASS_52) || 1231 (sc->device_id == MRSAS_CUTLASS_53)) { 1232 if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) 1233 != MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) 1234 cmd->io_request->ChainOffset = sc->chain_offset_io_request; 1235 else 1236 cmd->io_request->ChainOffset = 0; 1237 } else 1238 cmd->io_request->ChainOffset = sc->chain_offset_io_request; 1239 sg_chain = sgl_ptr; 1240 if ((sc->device_id == MRSAS_INVADER) || 1241 (sc->device_id == MRSAS_FURY) || 1242 (sc->device_id == MRSAS_INTRUDER) || 1243 (sc->device_id == MRSAS_INTRUDER_24) || 1244 (sc->device_id == MRSAS_CUTLASS_52) || 1245 (sc->device_id == MRSAS_CUTLASS_53)) 1246 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT; 1247 else 1248 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR); 1249 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed)); 1250 sg_chain->Address = cmd->chain_frame_phys_addr; 1251 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame; 1252 } 1253 } 1254 } 1255 cmd->sge_count = nseg; 1256 } 1257 1258 /* 1259 * mrsas_freeze_simq: Freeze SIM queue 1260 * input: Pointer to command packet 1261 * Pointer to SIM 1262 * 1263 * This function freezes the sim queue. 1264 */ 1265 static void 1266 mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim) 1267 { 1268 union ccb *ccb = (union ccb *)(cmd->ccb_ptr); 1269 1270 xpt_freeze_simq(sim, 1); 1271 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1272 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1273 } 1274 1275 void 1276 mrsas_xpt_freeze(struct mrsas_softc *sc) 1277 { 1278 xpt_freeze_simq(sc->sim_0, 1); 1279 xpt_freeze_simq(sc->sim_1, 1); 1280 } 1281 1282 void 1283 mrsas_xpt_release(struct mrsas_softc *sc) 1284 { 1285 xpt_release_simq(sc->sim_0, 1); 1286 xpt_release_simq(sc->sim_1, 1); 1287 } 1288 1289 /* 1290 * mrsas_cmd_done: Perform remaining command completion 1291 * input: Adapter instance soft state Pointer to command packet 1292 * 1293 * This function calls ummap request and releases the MPT command. 1294 */ 1295 void 1296 mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd) 1297 { 1298 callout_stop(&cmd->cm_callout); 1299 mrsas_unmap_request(sc, cmd); 1300 mtx_lock(&sc->sim_lock); 1301 xpt_done(cmd->ccb_ptr); 1302 cmd->ccb_ptr = NULL; 1303 mtx_unlock(&sc->sim_lock); 1304 mrsas_release_mpt_cmd(cmd); 1305 } 1306 1307 /* 1308 * mrsas_cam_poll: Polling entry point 1309 * input: Pointer to SIM 1310 * 1311 * This is currently a stub function. 1312 */ 1313 static void 1314 mrsas_cam_poll(struct cam_sim *sim) 1315 { 1316 int i; 1317 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim); 1318 1319 if (sc->msix_vectors != 0){ 1320 for (i=0; i<sc->msix_vectors; i++){ 1321 mrsas_complete_cmd(sc, i); 1322 } 1323 } else { 1324 mrsas_complete_cmd(sc, 0); 1325 } 1326 } 1327 1328 /* 1329 * mrsas_bus_scan: Perform bus scan 1330 * input: Adapter instance soft state 1331 * 1332 * This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not 1333 * be called in FreeBSD 8.x and later versions, where the bus scan is 1334 * automatic. 1335 */ 1336 int 1337 mrsas_bus_scan(struct mrsas_softc *sc) 1338 { 1339 union ccb *ccb_0; 1340 union ccb *ccb_1; 1341 1342 if ((ccb_0 = xpt_alloc_ccb()) == NULL) { 1343 return (ENOMEM); 1344 } 1345 if ((ccb_1 = xpt_alloc_ccb()) == NULL) { 1346 xpt_free_ccb(ccb_0); 1347 return (ENOMEM); 1348 } 1349 mtx_lock(&sc->sim_lock); 1350 if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0), 1351 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1352 xpt_free_ccb(ccb_0); 1353 xpt_free_ccb(ccb_1); 1354 mtx_unlock(&sc->sim_lock); 1355 return (EIO); 1356 } 1357 if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1), 1358 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1359 xpt_free_ccb(ccb_0); 1360 xpt_free_ccb(ccb_1); 1361 mtx_unlock(&sc->sim_lock); 1362 return (EIO); 1363 } 1364 mtx_unlock(&sc->sim_lock); 1365 xpt_rescan(ccb_0); 1366 xpt_rescan(ccb_1); 1367 1368 return (0); 1369 } 1370 1371 /* 1372 * mrsas_bus_scan_sim: Perform bus scan per SIM 1373 * input: adapter instance soft state 1374 * 1375 * This function will be called from Event handler on LD creation/deletion, 1376 * JBOD on/off. 1377 */ 1378 int 1379 mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim) 1380 { 1381 union ccb *ccb; 1382 1383 if ((ccb = xpt_alloc_ccb()) == NULL) { 1384 return (ENOMEM); 1385 } 1386 mtx_lock(&sc->sim_lock); 1387 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim), 1388 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1389 xpt_free_ccb(ccb); 1390 mtx_unlock(&sc->sim_lock); 1391 return (EIO); 1392 } 1393 mtx_unlock(&sc->sim_lock); 1394 xpt_rescan(ccb); 1395 1396 return (0); 1397 } 1398