1 /*- 2 * Copyright (c) 2009 Yahoo! Inc. 3 * Copyright (c) 2011, 2012 LSI Corp. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * LSI MPT-Fusion Host Adapter FreeBSD 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 /* Communications core for LSI MPT2 */ 36 37 /* TODO Move headers to mpsvar */ 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/selinfo.h> 43 #include <sys/module.h> 44 #include <sys/bus.h> 45 #include <sys/conf.h> 46 #include <sys/bio.h> 47 #include <sys/malloc.h> 48 #include <sys/uio.h> 49 #include <sys/sysctl.h> 50 #include <sys/endian.h> 51 #include <sys/queue.h> 52 #include <sys/kthread.h> 53 #include <sys/taskqueue.h> 54 #include <sys/sbuf.h> 55 56 #include <machine/bus.h> 57 #include <machine/resource.h> 58 #include <sys/rman.h> 59 60 #include <machine/stdarg.h> 61 62 #include <cam/cam.h> 63 #include <cam/cam_ccb.h> 64 #include <cam/cam_xpt.h> 65 #include <cam/cam_debug.h> 66 #include <cam/cam_sim.h> 67 #include <cam/cam_xpt_sim.h> 68 #include <cam/cam_xpt_periph.h> 69 #include <cam/cam_periph.h> 70 #include <cam/scsi/scsi_all.h> 71 #include <cam/scsi/scsi_message.h> 72 #if __FreeBSD_version >= 900026 73 #include <cam/scsi/smp_all.h> 74 #endif 75 76 #include <dev/mps/mpi/mpi2_type.h> 77 #include <dev/mps/mpi/mpi2.h> 78 #include <dev/mps/mpi/mpi2_ioc.h> 79 #include <dev/mps/mpi/mpi2_sas.h> 80 #include <dev/mps/mpi/mpi2_cnfg.h> 81 #include <dev/mps/mpi/mpi2_init.h> 82 #include <dev/mps/mpi/mpi2_tool.h> 83 #include <dev/mps/mps_ioctl.h> 84 #include <dev/mps/mpsvar.h> 85 #include <dev/mps/mps_table.h> 86 #include <dev/mps/mps_sas.h> 87 88 #define MPSSAS_DISCOVERY_TIMEOUT 20 89 #define MPSSAS_MAX_DISCOVERY_TIMEOUTS 10 /* 200 seconds */ 90 91 /* 92 * static array to check SCSI OpCode for EEDP protection bits 93 */ 94 #define PRO_R MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP 95 #define PRO_W MPI2_SCSIIO_EEDPFLAGS_INSERT_OP 96 #define PRO_V MPI2_SCSIIO_EEDPFLAGS_INSERT_OP 97 static uint8_t op_code_prot[256] = { 98 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 99 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 100 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 101 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 102 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 103 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 104 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 105 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 106 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 107 0, 0, 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 108 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 109 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 110 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 111 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 112 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 113 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 114 }; 115 116 MALLOC_DEFINE(M_MPSSAS, "MPSSAS", "MPS SAS memory"); 117 118 static void mpssas_discovery_timeout(void *data); 119 static void mpssas_remove_device(struct mps_softc *, struct mps_command *); 120 static void mpssas_remove_complete(struct mps_softc *, struct mps_command *); 121 static void mpssas_action(struct cam_sim *sim, union ccb *ccb); 122 static void mpssas_poll(struct cam_sim *sim); 123 static void mpssas_scsiio_timeout(void *data); 124 static void mpssas_abort_complete(struct mps_softc *sc, struct mps_command *cm); 125 static void mpssas_direct_drive_io(struct mpssas_softc *sassc, 126 struct mps_command *cm, union ccb *ccb); 127 static void mpssas_action_scsiio(struct mpssas_softc *, union ccb *); 128 static void mpssas_scsiio_complete(struct mps_softc *, struct mps_command *); 129 static void mpssas_action_resetdev(struct mpssas_softc *, union ccb *); 130 #if __FreeBSD_version >= 900026 131 static void mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm); 132 static void mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb, 133 uint64_t sasaddr); 134 static void mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb); 135 #endif //FreeBSD_version >= 900026 136 static void mpssas_resetdev_complete(struct mps_softc *, struct mps_command *); 137 static int mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm, struct mps_command *cm); 138 static int mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm, uint8_t type); 139 static void mpssas_rescan(struct mpssas_softc *sassc, union ccb *ccb); 140 static void mpssas_rescan_done(struct cam_periph *periph, union ccb *done_ccb); 141 static void mpssas_scanner_thread(void *arg); 142 #if __FreeBSD_version >= 1000006 143 static void mpssas_async(void *callback_arg, uint32_t code, 144 struct cam_path *path, void *arg); 145 #else 146 static void mpssas_check_eedp(struct mpssas_softc *sassc); 147 static void mpssas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb); 148 #endif 149 static int mpssas_send_portenable(struct mps_softc *sc); 150 static void mpssas_portenable_complete(struct mps_softc *sc, 151 struct mps_command *cm); 152 153 struct mpssas_target * 154 mpssas_find_target_by_handle(struct mpssas_softc *sassc, int start, uint16_t handle) 155 { 156 struct mpssas_target *target; 157 int i; 158 159 for (i = start; i < sassc->sc->facts->MaxTargets; i++) { 160 target = &sassc->targets[i]; 161 if (target->handle == handle) 162 return (target); 163 } 164 165 return (NULL); 166 } 167 168 /* we need to freeze the simq during attach and diag reset, to avoid failing 169 * commands before device handles have been found by discovery. Since 170 * discovery involves reading config pages and possibly sending commands, 171 * discovery actions may continue even after we receive the end of discovery 172 * event, so refcount discovery actions instead of assuming we can unfreeze 173 * the simq when we get the event. 174 */ 175 void 176 mpssas_startup_increment(struct mpssas_softc *sassc) 177 { 178 if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) { 179 if (sassc->startup_refcount++ == 0) { 180 /* just starting, freeze the simq */ 181 mps_dprint(sassc->sc, MPS_INFO, 182 "%s freezing simq\n", __func__); 183 xpt_freeze_simq(sassc->sim, 1); 184 } 185 mps_dprint(sassc->sc, MPS_TRACE, "%s refcount %u\n", __func__, 186 sassc->startup_refcount); 187 } 188 } 189 190 void 191 mpssas_startup_decrement(struct mpssas_softc *sassc) 192 { 193 if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) { 194 if (--sassc->startup_refcount == 0) { 195 /* finished all discovery-related actions, release 196 * the simq and rescan for the latest topology. 197 */ 198 mps_dprint(sassc->sc, MPS_INFO, 199 "%s releasing simq\n", __func__); 200 sassc->flags &= ~MPSSAS_IN_STARTUP; 201 xpt_release_simq(sassc->sim, 1); 202 mpssas_rescan_target(sassc->sc, NULL); 203 } 204 mps_dprint(sassc->sc, MPS_TRACE, "%s refcount %u\n", __func__, 205 sassc->startup_refcount); 206 } 207 } 208 209 /* LSI's firmware requires us to stop sending commands when we're doing task 210 * management, so refcount the TMs and keep the simq frozen when any are in 211 * use. 212 */ 213 struct mps_command * 214 mpssas_alloc_tm(struct mps_softc *sc) 215 { 216 struct mps_command *tm; 217 218 tm = mps_alloc_high_priority_command(sc); 219 if (tm != NULL) { 220 if (sc->sassc->tm_count++ == 0) { 221 mps_printf(sc, "%s freezing simq\n", __func__); 222 xpt_freeze_simq(sc->sassc->sim, 1); 223 } 224 mps_dprint(sc, MPS_TRACE, "%s tm_count %u\n", __func__, 225 sc->sassc->tm_count); 226 } 227 return tm; 228 } 229 230 void 231 mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm) 232 { 233 if (tm == NULL) 234 return; 235 236 /* if there are no TMs in use, we can release the simq. We use our 237 * own refcount so that it's easier for a diag reset to cleanup and 238 * release the simq. 239 */ 240 if (--sc->sassc->tm_count == 0) { 241 mps_printf(sc, "%s releasing simq\n", __func__); 242 xpt_release_simq(sc->sassc->sim, 1); 243 } 244 mps_dprint(sc, MPS_TRACE, "%s tm_count %u\n", __func__, 245 sc->sassc->tm_count); 246 247 mps_free_high_priority_command(sc, tm); 248 } 249 250 251 void 252 mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ) 253 { 254 struct mpssas_softc *sassc = sc->sassc; 255 path_id_t pathid; 256 target_id_t targetid; 257 union ccb *ccb; 258 259 pathid = cam_sim_path(sassc->sim); 260 if (targ == NULL) 261 targetid = CAM_TARGET_WILDCARD; 262 else 263 targetid = targ - sassc->targets; 264 265 /* 266 * Allocate a CCB and schedule a rescan. 267 */ 268 ccb = xpt_alloc_ccb_nowait(); 269 if (ccb == NULL) { 270 mps_dprint(sc, MPS_FAULT, "unable to alloc CCB for rescan\n"); 271 return; 272 } 273 274 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid, 275 targetid, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 276 mps_dprint(sc, MPS_FAULT, "unable to create path for rescan\n"); 277 xpt_free_ccb(ccb); 278 return; 279 } 280 281 if (targetid == CAM_TARGET_WILDCARD) 282 ccb->ccb_h.func_code = XPT_SCAN_BUS; 283 else 284 ccb->ccb_h.func_code = XPT_SCAN_TGT; 285 286 mps_dprint(sc, MPS_TRACE, "%s targetid %u\n", __func__, targetid); 287 mpssas_rescan(sassc, ccb); 288 } 289 290 static void 291 mpssas_log_command(struct mps_command *cm, const char *fmt, ...) 292 { 293 struct sbuf sb; 294 va_list ap; 295 char str[192]; 296 char path_str[64]; 297 298 if (cm == NULL) 299 return; 300 301 sbuf_new(&sb, str, sizeof(str), 0); 302 303 va_start(ap, fmt); 304 305 if (cm->cm_ccb != NULL) { 306 xpt_path_string(cm->cm_ccb->csio.ccb_h.path, path_str, 307 sizeof(path_str)); 308 sbuf_cat(&sb, path_str); 309 if (cm->cm_ccb->ccb_h.func_code == XPT_SCSI_IO) { 310 scsi_command_string(&cm->cm_ccb->csio, &sb); 311 sbuf_printf(&sb, "length %d ", 312 cm->cm_ccb->csio.dxfer_len); 313 } 314 } 315 else { 316 sbuf_printf(&sb, "(noperiph:%s%d:%u:%u:%u): ", 317 cam_sim_name(cm->cm_sc->sassc->sim), 318 cam_sim_unit(cm->cm_sc->sassc->sim), 319 cam_sim_bus(cm->cm_sc->sassc->sim), 320 cm->cm_targ ? cm->cm_targ->tid : 0xFFFFFFFF, 321 cm->cm_lun); 322 } 323 324 sbuf_printf(&sb, "SMID %u ", cm->cm_desc.Default.SMID); 325 sbuf_vprintf(&sb, fmt, ap); 326 sbuf_finish(&sb); 327 printf("%s", sbuf_data(&sb)); 328 329 va_end(ap); 330 } 331 332 333 static void 334 mpssas_remove_volume(struct mps_softc *sc, struct mps_command *tm) 335 { 336 MPI2_SCSI_TASK_MANAGE_REPLY *reply; 337 struct mpssas_target *targ; 338 uint16_t handle; 339 340 mps_dprint(sc, MPS_INFO, "%s\n", __func__); 341 342 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 343 handle = (uint16_t)(uintptr_t)tm->cm_complete_data; 344 targ = tm->cm_targ; 345 346 if (reply == NULL) { 347 /* XXX retry the remove after the diag reset completes? */ 348 mps_printf(sc, "%s NULL reply reseting device 0x%04x\n", 349 __func__, handle); 350 mpssas_free_tm(sc, tm); 351 return; 352 } 353 354 if (reply->IOCStatus != MPI2_IOCSTATUS_SUCCESS) { 355 mps_printf(sc, "IOCStatus = 0x%x while resetting device 0x%x\n", 356 reply->IOCStatus, handle); 357 mpssas_free_tm(sc, tm); 358 return; 359 } 360 361 mps_printf(sc, "Reset aborted %u commands\n", reply->TerminationCount); 362 mps_free_reply(sc, tm->cm_reply_data); 363 tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */ 364 365 mps_printf(sc, "clearing target %u handle 0x%04x\n", targ->tid, handle); 366 367 /* 368 * Don't clear target if remove fails because things will get confusing. 369 * Leave the devname and sasaddr intact so that we know to avoid reusing 370 * this target id if possible, and so we can assign the same target id 371 * to this device if it comes back in the future. 372 */ 373 if (reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) { 374 targ = tm->cm_targ; 375 targ->handle = 0x0; 376 targ->encl_handle = 0x0; 377 targ->encl_slot = 0x0; 378 targ->exp_dev_handle = 0x0; 379 targ->phy_num = 0x0; 380 targ->linkrate = 0x0; 381 targ->devinfo = 0x0; 382 targ->flags = 0x0; 383 } 384 385 mpssas_free_tm(sc, tm); 386 } 387 388 389 /* 390 * No Need to call "MPI2_SAS_OP_REMOVE_DEVICE" For Volume removal. 391 * Otherwise Volume Delete is same as Bare Drive Removal. 392 */ 393 void 394 mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle) 395 { 396 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 397 struct mps_softc *sc; 398 struct mps_command *cm; 399 struct mpssas_target *targ = NULL; 400 401 mps_dprint(sassc->sc, MPS_INFO, "%s\n", __func__); 402 sc = sassc->sc; 403 404 #ifdef WD_SUPPORT 405 /* 406 * If this is a WD controller, determine if the disk should be exposed 407 * to the OS or not. If disk should be exposed, return from this 408 * function without doing anything. 409 */ 410 if (sc->WD_available && (sc->WD_hide_expose == 411 MPS_WD_EXPOSE_ALWAYS)) { 412 return; 413 } 414 #endif //WD_SUPPORT 415 416 targ = mpssas_find_target_by_handle(sassc, 0, handle); 417 if (targ == NULL) { 418 /* FIXME: what is the action? */ 419 /* We don't know about this device? */ 420 printf("%s %d : invalid handle 0x%x \n", __func__,__LINE__, handle); 421 return; 422 } 423 424 targ->flags |= MPSSAS_TARGET_INREMOVAL; 425 426 cm = mpssas_alloc_tm(sc); 427 if (cm == NULL) { 428 mps_printf(sc, "%s: command alloc failure\n", __func__); 429 return; 430 } 431 432 mpssas_rescan_target(sc, targ); 433 434 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req; 435 req->DevHandle = targ->handle; 436 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 437 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 438 439 /* SAS Hard Link Reset / SATA Link Reset */ 440 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; 441 442 cm->cm_targ = targ; 443 cm->cm_data = NULL; 444 cm->cm_desc.HighPriority.RequestFlags = 445 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 446 cm->cm_complete = mpssas_remove_volume; 447 cm->cm_complete_data = (void *)(uintptr_t)handle; 448 mps_map_command(sc, cm); 449 } 450 451 /* 452 * The MPT2 firmware performs debounce on the link to avoid transient link 453 * errors and false removals. When it does decide that link has been lost 454 * and a device need to go away, it expects that the host will perform a 455 * target reset and then an op remove. The reset has the side-effect of 456 * aborting any outstanding requests for the device, which is required for 457 * the op-remove to succeed. It's not clear if the host should check for 458 * the device coming back alive after the reset. 459 */ 460 void 461 mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle) 462 { 463 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 464 struct mps_softc *sc; 465 struct mps_command *cm; 466 struct mpssas_target *targ = NULL; 467 468 mps_dprint(sassc->sc, MPS_INFO, "%s\n", __func__); 469 470 sc = sassc->sc; 471 472 targ = mpssas_find_target_by_handle(sassc, 0, handle); 473 if (targ == NULL) { 474 /* FIXME: what is the action? */ 475 /* We don't know about this device? */ 476 printf("%s %d : invalid handle 0x%x \n", __func__,__LINE__, handle); 477 return; 478 } 479 480 targ->flags |= MPSSAS_TARGET_INREMOVAL; 481 482 cm = mpssas_alloc_tm(sc); 483 if (cm == NULL) { 484 mps_printf(sc, "%s: command alloc failure\n", __func__); 485 return; 486 } 487 488 mpssas_rescan_target(sc, targ); 489 490 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req; 491 memset(req, 0, sizeof(*req)); 492 req->DevHandle = htole16(targ->handle); 493 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 494 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 495 496 /* SAS Hard Link Reset / SATA Link Reset */ 497 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; 498 499 cm->cm_targ = targ; 500 cm->cm_data = NULL; 501 cm->cm_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 502 cm->cm_complete = mpssas_remove_device; 503 cm->cm_complete_data = (void *)(uintptr_t)handle; 504 mps_map_command(sc, cm); 505 } 506 507 static void 508 mpssas_remove_device(struct mps_softc *sc, struct mps_command *tm) 509 { 510 MPI2_SCSI_TASK_MANAGE_REPLY *reply; 511 MPI2_SAS_IOUNIT_CONTROL_REQUEST *req; 512 struct mpssas_target *targ; 513 struct mps_command *next_cm; 514 uint16_t handle; 515 516 mps_dprint(sc, MPS_INFO, "%s\n", __func__); 517 518 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 519 handle = (uint16_t)(uintptr_t)tm->cm_complete_data; 520 targ = tm->cm_targ; 521 522 /* 523 * Currently there should be no way we can hit this case. It only 524 * happens when we have a failure to allocate chain frames, and 525 * task management commands don't have S/G lists. 526 */ 527 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 528 mps_printf(sc, "%s: cm_flags = %#x for remove of handle %#04x! " 529 "This should not happen!\n", __func__, tm->cm_flags, 530 handle); 531 mpssas_free_tm(sc, tm); 532 return; 533 } 534 535 if (reply == NULL) { 536 /* XXX retry the remove after the diag reset completes? */ 537 mps_printf(sc, "%s NULL reply reseting device 0x%04x\n", 538 __func__, handle); 539 mpssas_free_tm(sc, tm); 540 return; 541 } 542 543 if (le16toh(reply->IOCStatus) != MPI2_IOCSTATUS_SUCCESS) { 544 mps_printf(sc, "IOCStatus = 0x%x while resetting device 0x%x\n", 545 le16toh(reply->IOCStatus), handle); 546 mpssas_free_tm(sc, tm); 547 return; 548 } 549 550 mps_dprint(sc, MPS_INFO, "Reset aborted %u commands\n", 551 le32toh(reply->TerminationCount)); 552 mps_free_reply(sc, tm->cm_reply_data); 553 tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */ 554 555 /* Reuse the existing command */ 556 req = (MPI2_SAS_IOUNIT_CONTROL_REQUEST *)tm->cm_req; 557 memset(req, 0, sizeof(*req)); 558 req->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 559 req->Operation = MPI2_SAS_OP_REMOVE_DEVICE; 560 req->DevHandle = htole16(handle); 561 tm->cm_data = NULL; 562 tm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 563 tm->cm_complete = mpssas_remove_complete; 564 tm->cm_complete_data = (void *)(uintptr_t)handle; 565 566 mps_map_command(sc, tm); 567 568 mps_dprint(sc, MPS_INFO, "clearing target %u handle 0x%04x\n", 569 targ->tid, handle); 570 TAILQ_FOREACH_SAFE(tm, &targ->commands, cm_link, next_cm) { 571 union ccb *ccb; 572 573 mps_dprint(sc, MPS_INFO, "Completing missed command %p\n", tm); 574 ccb = tm->cm_complete_data; 575 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 576 mpssas_scsiio_complete(sc, tm); 577 } 578 } 579 580 static void 581 mpssas_remove_complete(struct mps_softc *sc, struct mps_command *tm) 582 { 583 MPI2_SAS_IOUNIT_CONTROL_REPLY *reply; 584 uint16_t handle; 585 struct mpssas_target *targ; 586 struct mpssas_lun *lun; 587 588 mps_dprint(sc, MPS_INFO, "%s\n", __func__); 589 590 reply = (MPI2_SAS_IOUNIT_CONTROL_REPLY *)tm->cm_reply; 591 handle = (uint16_t)(uintptr_t)tm->cm_complete_data; 592 593 /* 594 * Currently there should be no way we can hit this case. It only 595 * happens when we have a failure to allocate chain frames, and 596 * task management commands don't have S/G lists. 597 */ 598 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 599 mps_printf(sc, "%s: cm_flags = %#x for remove of handle %#04x! " 600 "This should not happen!\n", __func__, tm->cm_flags, 601 handle); 602 mpssas_free_tm(sc, tm); 603 return; 604 } 605 606 if (reply == NULL) { 607 /* most likely a chip reset */ 608 mps_printf(sc, "%s NULL reply removing device 0x%04x\n", 609 __func__, handle); 610 mpssas_free_tm(sc, tm); 611 return; 612 } 613 614 mps_printf(sc, "%s on handle 0x%04x, IOCStatus= 0x%x\n", __func__, 615 handle, le16toh(reply->IOCStatus)); 616 617 /* 618 * Don't clear target if remove fails because things will get confusing. 619 * Leave the devname and sasaddr intact so that we know to avoid reusing 620 * this target id if possible, and so we can assign the same target id 621 * to this device if it comes back in the future. 622 */ 623 if (le16toh(reply->IOCStatus) == MPI2_IOCSTATUS_SUCCESS) { 624 targ = tm->cm_targ; 625 targ->handle = 0x0; 626 targ->encl_handle = 0x0; 627 targ->encl_slot = 0x0; 628 targ->exp_dev_handle = 0x0; 629 targ->phy_num = 0x0; 630 targ->linkrate = 0x0; 631 targ->devinfo = 0x0; 632 targ->flags = 0x0; 633 634 while(!SLIST_EMPTY(&targ->luns)) { 635 lun = SLIST_FIRST(&targ->luns); 636 SLIST_REMOVE_HEAD(&targ->luns, lun_link); 637 free(lun, M_MPT2); 638 } 639 } 640 641 642 mpssas_free_tm(sc, tm); 643 } 644 645 static int 646 mpssas_register_events(struct mps_softc *sc) 647 { 648 u32 events[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS]; 649 650 bzero(events, 16); 651 setbit(events, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); 652 setbit(events, MPI2_EVENT_SAS_DISCOVERY); 653 setbit(events, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE); 654 setbit(events, MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE); 655 setbit(events, MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW); 656 setbit(events, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST); 657 setbit(events, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE); 658 setbit(events, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST); 659 setbit(events, MPI2_EVENT_IR_VOLUME); 660 setbit(events, MPI2_EVENT_IR_PHYSICAL_DISK); 661 setbit(events, MPI2_EVENT_IR_OPERATION_STATUS); 662 setbit(events, MPI2_EVENT_LOG_ENTRY_ADDED); 663 664 mps_register_events(sc, events, mpssas_evt_handler, NULL, 665 &sc->sassc->mpssas_eh); 666 667 return (0); 668 } 669 670 int 671 mps_attach_sas(struct mps_softc *sc) 672 { 673 struct mpssas_softc *sassc; 674 #if __FreeBSD_version >= 1000006 675 cam_status status; 676 #endif 677 int unit, error = 0; 678 679 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 680 681 sassc = malloc(sizeof(struct mpssas_softc), M_MPT2, M_WAITOK|M_ZERO); 682 if(!sassc) { 683 device_printf(sc->mps_dev, "Cannot allocate memory %s %d\n", 684 __func__, __LINE__); 685 return (ENOMEM); 686 } 687 sassc->targets = malloc(sizeof(struct mpssas_target) * 688 sc->facts->MaxTargets, M_MPT2, M_WAITOK|M_ZERO); 689 if(!sassc->targets) { 690 device_printf(sc->mps_dev, "Cannot allocate memory %s %d\n", 691 __func__, __LINE__); 692 free(sassc, M_MPT2); 693 return (ENOMEM); 694 } 695 sc->sassc = sassc; 696 sassc->sc = sc; 697 698 if ((sassc->devq = cam_simq_alloc(sc->num_reqs)) == NULL) { 699 mps_dprint(sc, MPS_FAULT, "Cannot allocate SIMQ\n"); 700 error = ENOMEM; 701 goto out; 702 } 703 704 unit = device_get_unit(sc->mps_dev); 705 sassc->sim = cam_sim_alloc(mpssas_action, mpssas_poll, "mps", sassc, 706 unit, &sc->mps_mtx, sc->num_reqs, sc->num_reqs, sassc->devq); 707 if (sassc->sim == NULL) { 708 mps_dprint(sc, MPS_FAULT, "Cannot allocate SIM\n"); 709 error = EINVAL; 710 goto out; 711 } 712 713 TAILQ_INIT(&sassc->ev_queue); 714 715 /* Initialize taskqueue for Event Handling */ 716 TASK_INIT(&sassc->ev_task, 0, mpssas_firmware_event_work, sc); 717 sassc->ev_tq = taskqueue_create("mps_taskq", M_NOWAIT | M_ZERO, 718 taskqueue_thread_enqueue, &sassc->ev_tq); 719 720 /* Run the task queue with lowest priority */ 721 taskqueue_start_threads(&sassc->ev_tq, 1, 255, "%s taskq", 722 device_get_nameunit(sc->mps_dev)); 723 724 TAILQ_INIT(&sassc->ccb_scanq); 725 error = mps_kproc_create(mpssas_scanner_thread, sassc, 726 &sassc->rescan_thread, 0, 0, "mps_scan%d", unit); 727 if (error) { 728 mps_printf(sc, "Error %d starting rescan thread\n", error); 729 goto out; 730 } 731 732 mps_lock(sc); 733 sassc->flags |= MPSSAS_SCANTHREAD; 734 735 /* 736 * XXX There should be a bus for every port on the adapter, but since 737 * we're just going to fake the topology for now, we'll pretend that 738 * everything is just a target on a single bus. 739 */ 740 if ((error = xpt_bus_register(sassc->sim, sc->mps_dev, 0)) != 0) { 741 mps_dprint(sc, MPS_FAULT, "Error %d registering SCSI bus\n", 742 error); 743 mps_unlock(sc); 744 goto out; 745 } 746 747 /* 748 * Assume that discovery events will start right away. Freezing 749 * the simq will prevent the CAM boottime scanner from running 750 * before discovery is complete. 751 */ 752 sassc->flags |= MPSSAS_IN_STARTUP | MPSSAS_IN_DISCOVERY; 753 xpt_freeze_simq(sassc->sim, 1); 754 sc->sassc->startup_refcount = 0; 755 756 callout_init(&sassc->discovery_callout, 1 /*mpsafe*/); 757 sassc->discovery_timeouts = 0; 758 759 sassc->tm_count = 0; 760 761 #if __FreeBSD_version >= 1000006 762 status = xpt_register_async(AC_ADVINFO_CHANGED, mpssas_async, sc, NULL); 763 if (status != CAM_REQ_CMP) { 764 mps_printf(sc, "Error %#x registering async handler for " 765 "AC_ADVINFO_CHANGED events\n", status); 766 } 767 #endif 768 769 mps_unlock(sc); 770 771 mpssas_register_events(sc); 772 out: 773 if (error) 774 mps_detach_sas(sc); 775 return (error); 776 } 777 778 int 779 mps_detach_sas(struct mps_softc *sc) 780 { 781 struct mpssas_softc *sassc; 782 struct mpssas_lun *lun, *lun_tmp; 783 struct mpssas_target *targ; 784 int i; 785 786 mps_dprint(sc, MPS_INFO, "%s\n", __func__); 787 788 if (sc->sassc == NULL) 789 return (0); 790 791 sassc = sc->sassc; 792 mps_deregister_events(sc, sassc->mpssas_eh); 793 794 /* 795 * Drain and free the event handling taskqueue with the lock 796 * unheld so that any parallel processing tasks drain properly 797 * without deadlocking. 798 */ 799 if (sassc->ev_tq != NULL) 800 taskqueue_free(sassc->ev_tq); 801 802 /* Make sure CAM doesn't wedge if we had to bail out early. */ 803 mps_lock(sc); 804 805 /* Deregister our async handler */ 806 #if __FreeBSD_version >= 1000006 807 xpt_register_async(0, mpssas_async, sc, NULL); 808 #endif 809 810 if (sassc->flags & MPSSAS_IN_STARTUP) 811 xpt_release_simq(sassc->sim, 1); 812 813 if (sassc->sim != NULL) { 814 xpt_bus_deregister(cam_sim_path(sassc->sim)); 815 cam_sim_free(sassc->sim, FALSE); 816 } 817 818 if (sassc->flags & MPSSAS_SCANTHREAD) { 819 sassc->flags |= MPSSAS_SHUTDOWN; 820 wakeup(&sassc->ccb_scanq); 821 822 if (sassc->flags & MPSSAS_SCANTHREAD) { 823 msleep(&sassc->flags, &sc->mps_mtx, PRIBIO, 824 "mps_shutdown", 30 * hz); 825 } 826 } 827 mps_unlock(sc); 828 829 mps_dprint(sc, MPS_INFO, "%s:%d\n", __func__,__LINE__); 830 if (sassc->devq != NULL) 831 cam_simq_free(sassc->devq); 832 833 for(i=0; i< sc->facts->MaxTargets ;i++) { 834 targ = &sassc->targets[i]; 835 SLIST_FOREACH_SAFE(lun, &targ->luns, lun_link, lun_tmp) { 836 free(lun, M_MPT2); 837 } 838 } 839 free(sassc->targets, M_MPT2); 840 free(sassc, M_MPT2); 841 sc->sassc = NULL; 842 843 return (0); 844 } 845 846 void 847 mpssas_discovery_end(struct mpssas_softc *sassc) 848 { 849 struct mps_softc *sc = sassc->sc; 850 851 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 852 853 if (sassc->flags & MPSSAS_DISCOVERY_TIMEOUT_PENDING) 854 callout_stop(&sassc->discovery_callout); 855 856 } 857 858 static void 859 mpssas_discovery_timeout(void *data) 860 { 861 struct mpssas_softc *sassc = data; 862 struct mps_softc *sc; 863 864 sc = sassc->sc; 865 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 866 867 mps_lock(sc); 868 mps_printf(sc, 869 "Timeout waiting for discovery, interrupts may not be working!\n"); 870 sassc->flags &= ~MPSSAS_DISCOVERY_TIMEOUT_PENDING; 871 872 /* Poll the hardware for events in case interrupts aren't working */ 873 mps_intr_locked(sc); 874 875 mps_printf(sassc->sc, 876 "Finished polling after discovery timeout at %d\n", ticks); 877 878 if ((sassc->flags & MPSSAS_IN_DISCOVERY) == 0) { 879 mpssas_discovery_end(sassc); 880 } else { 881 if (sassc->discovery_timeouts < MPSSAS_MAX_DISCOVERY_TIMEOUTS) { 882 sassc->flags |= MPSSAS_DISCOVERY_TIMEOUT_PENDING; 883 callout_reset(&sassc->discovery_callout, 884 MPSSAS_DISCOVERY_TIMEOUT * hz, 885 mpssas_discovery_timeout, sassc); 886 sassc->discovery_timeouts++; 887 } else { 888 mps_dprint(sassc->sc, MPS_FAULT, 889 "Discovery timed out, continuing.\n"); 890 sassc->flags &= ~MPSSAS_IN_DISCOVERY; 891 mpssas_discovery_end(sassc); 892 } 893 } 894 895 mps_unlock(sc); 896 } 897 898 static void 899 mpssas_action(struct cam_sim *sim, union ccb *ccb) 900 { 901 struct mpssas_softc *sassc; 902 903 sassc = cam_sim_softc(sim); 904 905 mps_dprint(sassc->sc, MPS_TRACE, "%s func 0x%x\n", __func__, 906 ccb->ccb_h.func_code); 907 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); 908 909 switch (ccb->ccb_h.func_code) { 910 case XPT_PATH_INQ: 911 { 912 struct ccb_pathinq *cpi = &ccb->cpi; 913 914 cpi->version_num = 1; 915 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; 916 cpi->target_sprt = 0; 917 cpi->hba_misc = PIM_NOBUSRESET; 918 cpi->hba_eng_cnt = 0; 919 cpi->max_target = sassc->sc->facts->MaxTargets - 1; 920 cpi->max_lun = 255; 921 cpi->initiator_id = sassc->sc->facts->MaxTargets - 1; 922 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 923 strncpy(cpi->hba_vid, "LSILogic", HBA_IDLEN); 924 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 925 cpi->unit_number = cam_sim_unit(sim); 926 cpi->bus_id = cam_sim_bus(sim); 927 cpi->base_transfer_speed = 150000; 928 cpi->transport = XPORT_SAS; 929 cpi->transport_version = 0; 930 cpi->protocol = PROTO_SCSI; 931 cpi->protocol_version = SCSI_REV_SPC; 932 #if __FreeBSD_version >= 800001 933 /* 934 * XXX KDM where does this number come from? 935 */ 936 cpi->maxio = 256 * 1024; 937 #endif 938 cpi->ccb_h.status = CAM_REQ_CMP; 939 break; 940 } 941 case XPT_GET_TRAN_SETTINGS: 942 { 943 struct ccb_trans_settings *cts; 944 struct ccb_trans_settings_sas *sas; 945 struct ccb_trans_settings_scsi *scsi; 946 struct mpssas_target *targ; 947 948 cts = &ccb->cts; 949 sas = &cts->xport_specific.sas; 950 scsi = &cts->proto_specific.scsi; 951 952 targ = &sassc->targets[cts->ccb_h.target_id]; 953 if (targ->handle == 0x0) { 954 cts->ccb_h.status = CAM_SEL_TIMEOUT; 955 break; 956 } 957 958 cts->protocol_version = SCSI_REV_SPC2; 959 cts->transport = XPORT_SAS; 960 cts->transport_version = 0; 961 962 sas->valid = CTS_SAS_VALID_SPEED; 963 switch (targ->linkrate) { 964 case 0x08: 965 sas->bitrate = 150000; 966 break; 967 case 0x09: 968 sas->bitrate = 300000; 969 break; 970 case 0x0a: 971 sas->bitrate = 600000; 972 break; 973 default: 974 sas->valid = 0; 975 } 976 977 cts->protocol = PROTO_SCSI; 978 scsi->valid = CTS_SCSI_VALID_TQ; 979 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 980 981 cts->ccb_h.status = CAM_REQ_CMP; 982 break; 983 } 984 case XPT_CALC_GEOMETRY: 985 cam_calc_geometry(&ccb->ccg, /*extended*/1); 986 ccb->ccb_h.status = CAM_REQ_CMP; 987 break; 988 case XPT_RESET_DEV: 989 mps_printf(sassc->sc, "mpssas_action XPT_RESET_DEV\n"); 990 mpssas_action_resetdev(sassc, ccb); 991 return; 992 case XPT_RESET_BUS: 993 case XPT_ABORT: 994 case XPT_TERM_IO: 995 mps_printf(sassc->sc, "mpssas_action faking success for " 996 "abort or reset\n"); 997 ccb->ccb_h.status = CAM_REQ_CMP; 998 break; 999 case XPT_SCSI_IO: 1000 mpssas_action_scsiio(sassc, ccb); 1001 return; 1002 #if __FreeBSD_version >= 900026 1003 case XPT_SMP_IO: 1004 mpssas_action_smpio(sassc, ccb); 1005 return; 1006 #endif 1007 default: 1008 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1009 break; 1010 } 1011 xpt_done(ccb); 1012 1013 } 1014 1015 static void 1016 mpssas_announce_reset(struct mps_softc *sc, uint32_t ac_code, 1017 target_id_t target_id, lun_id_t lun_id) 1018 { 1019 path_id_t path_id = cam_sim_path(sc->sassc->sim); 1020 struct cam_path *path; 1021 1022 mps_printf(sc, "%s code %x target %d lun %d\n", __func__, 1023 ac_code, target_id, lun_id); 1024 1025 if (xpt_create_path(&path, NULL, 1026 path_id, target_id, lun_id) != CAM_REQ_CMP) { 1027 mps_printf(sc, "unable to create path for reset " 1028 "notification\n"); 1029 return; 1030 } 1031 1032 xpt_async(ac_code, path, NULL); 1033 xpt_free_path(path); 1034 } 1035 1036 static void 1037 mpssas_complete_all_commands(struct mps_softc *sc) 1038 { 1039 struct mps_command *cm; 1040 int i; 1041 int completed; 1042 1043 mps_printf(sc, "%s\n", __func__); 1044 mtx_assert(&sc->mps_mtx, MA_OWNED); 1045 1046 /* complete all commands with a NULL reply */ 1047 for (i = 1; i < sc->num_reqs; i++) { 1048 cm = &sc->commands[i]; 1049 cm->cm_reply = NULL; 1050 completed = 0; 1051 1052 if (cm->cm_flags & MPS_CM_FLAGS_POLLED) 1053 cm->cm_flags |= MPS_CM_FLAGS_COMPLETE; 1054 1055 if (cm->cm_complete != NULL) { 1056 mpssas_log_command(cm, 1057 "completing cm %p state %x ccb %p for diag reset\n", 1058 cm, cm->cm_state, cm->cm_ccb); 1059 1060 cm->cm_complete(sc, cm); 1061 completed = 1; 1062 } 1063 1064 if (cm->cm_flags & MPS_CM_FLAGS_WAKEUP) { 1065 mpssas_log_command(cm, 1066 "waking up cm %p state %x ccb %p for diag reset\n", 1067 cm, cm->cm_state, cm->cm_ccb); 1068 wakeup(cm); 1069 completed = 1; 1070 } 1071 1072 if ((completed == 0) && (cm->cm_state != MPS_CM_STATE_FREE)) { 1073 /* this should never happen, but if it does, log */ 1074 mpssas_log_command(cm, 1075 "cm %p state %x flags 0x%x ccb %p during diag " 1076 "reset\n", cm, cm->cm_state, cm->cm_flags, 1077 cm->cm_ccb); 1078 } 1079 } 1080 } 1081 1082 void 1083 mpssas_handle_reinit(struct mps_softc *sc) 1084 { 1085 int i; 1086 1087 /* Go back into startup mode and freeze the simq, so that CAM 1088 * doesn't send any commands until after we've rediscovered all 1089 * targets and found the proper device handles for them. 1090 * 1091 * After the reset, portenable will trigger discovery, and after all 1092 * discovery-related activities have finished, the simq will be 1093 * released. 1094 */ 1095 mps_printf(sc, "%s startup\n", __func__); 1096 sc->sassc->flags |= MPSSAS_IN_STARTUP; 1097 sc->sassc->flags |= MPSSAS_IN_DISCOVERY; 1098 xpt_freeze_simq(sc->sassc->sim, 1); 1099 1100 /* notify CAM of a bus reset */ 1101 mpssas_announce_reset(sc, AC_BUS_RESET, CAM_TARGET_WILDCARD, 1102 CAM_LUN_WILDCARD); 1103 1104 /* complete and cleanup after all outstanding commands */ 1105 mpssas_complete_all_commands(sc); 1106 1107 mps_printf(sc, "%s startup %u tm %u after command completion\n", 1108 __func__, sc->sassc->startup_refcount, sc->sassc->tm_count); 1109 1110 /* 1111 * The simq was explicitly frozen above, so set the refcount to 0. 1112 * The simq will be explicitly released after port enable completes. 1113 */ 1114 sc->sassc->startup_refcount = 0; 1115 1116 /* zero all the target handles, since they may change after the 1117 * reset, and we have to rediscover all the targets and use the new 1118 * handles. 1119 */ 1120 for (i = 0; i < sc->facts->MaxTargets; i++) { 1121 if (sc->sassc->targets[i].outstanding != 0) 1122 mps_printf(sc, "target %u outstanding %u\n", 1123 i, sc->sassc->targets[i].outstanding); 1124 sc->sassc->targets[i].handle = 0x0; 1125 sc->sassc->targets[i].exp_dev_handle = 0x0; 1126 sc->sassc->targets[i].outstanding = 0; 1127 sc->sassc->targets[i].flags = MPSSAS_TARGET_INDIAGRESET; 1128 } 1129 } 1130 static void 1131 mpssas_tm_timeout(void *data) 1132 { 1133 struct mps_command *tm = data; 1134 struct mps_softc *sc = tm->cm_sc; 1135 1136 mtx_assert(&sc->mps_mtx, MA_OWNED); 1137 1138 mpssas_log_command(tm, "task mgmt %p timed out\n", tm); 1139 mps_reinit(sc); 1140 } 1141 1142 static void 1143 mpssas_logical_unit_reset_complete(struct mps_softc *sc, struct mps_command *tm) 1144 { 1145 MPI2_SCSI_TASK_MANAGE_REPLY *reply; 1146 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 1147 unsigned int cm_count = 0; 1148 struct mps_command *cm; 1149 struct mpssas_target *targ; 1150 1151 callout_stop(&tm->cm_callout); 1152 1153 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 1154 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 1155 targ = tm->cm_targ; 1156 1157 /* 1158 * Currently there should be no way we can hit this case. It only 1159 * happens when we have a failure to allocate chain frames, and 1160 * task management commands don't have S/G lists. 1161 */ 1162 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 1163 mps_printf(sc, "%s: cm_flags = %#x for LUN reset! " 1164 "This should not happen!\n", __func__, tm->cm_flags); 1165 mpssas_free_tm(sc, tm); 1166 return; 1167 } 1168 1169 if (reply == NULL) { 1170 mpssas_log_command(tm, "NULL reset reply for tm %p\n", tm); 1171 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { 1172 /* this completion was due to a reset, just cleanup */ 1173 targ->flags &= ~MPSSAS_TARGET_INRESET; 1174 targ->tm = NULL; 1175 mpssas_free_tm(sc, tm); 1176 } 1177 else { 1178 /* we should have gotten a reply. */ 1179 mps_reinit(sc); 1180 } 1181 return; 1182 } 1183 1184 mpssas_log_command(tm, 1185 "logical unit reset status 0x%x code 0x%x count %u\n", 1186 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), 1187 le32toh(reply->TerminationCount)); 1188 1189 /* See if there are any outstanding commands for this LUN. 1190 * This could be made more efficient by using a per-LU data 1191 * structure of some sort. 1192 */ 1193 TAILQ_FOREACH(cm, &targ->commands, cm_link) { 1194 if (cm->cm_lun == tm->cm_lun) 1195 cm_count++; 1196 } 1197 1198 if (cm_count == 0) { 1199 mpssas_log_command(tm, 1200 "logical unit %u finished recovery after reset\n", 1201 tm->cm_lun, tm); 1202 1203 mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, 1204 tm->cm_lun); 1205 1206 /* we've finished recovery for this logical unit. check and 1207 * see if some other logical unit has a timedout command 1208 * that needs to be processed. 1209 */ 1210 cm = TAILQ_FIRST(&targ->timedout_commands); 1211 if (cm) { 1212 mpssas_send_abort(sc, tm, cm); 1213 } 1214 else { 1215 targ->tm = NULL; 1216 mpssas_free_tm(sc, tm); 1217 } 1218 } 1219 else { 1220 /* if we still have commands for this LUN, the reset 1221 * effectively failed, regardless of the status reported. 1222 * Escalate to a target reset. 1223 */ 1224 mpssas_log_command(tm, 1225 "logical unit reset complete for tm %p, but still have %u command(s)\n", 1226 tm, cm_count); 1227 mpssas_send_reset(sc, tm, 1228 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET); 1229 } 1230 } 1231 1232 static void 1233 mpssas_target_reset_complete(struct mps_softc *sc, struct mps_command *tm) 1234 { 1235 MPI2_SCSI_TASK_MANAGE_REPLY *reply; 1236 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 1237 struct mpssas_target *targ; 1238 1239 callout_stop(&tm->cm_callout); 1240 1241 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 1242 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 1243 targ = tm->cm_targ; 1244 1245 /* 1246 * Currently there should be no way we can hit this case. It only 1247 * happens when we have a failure to allocate chain frames, and 1248 * task management commands don't have S/G lists. 1249 */ 1250 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 1251 mps_printf(sc, "%s: cm_flags = %#x for target reset! " 1252 "This should not happen!\n", __func__, tm->cm_flags); 1253 mpssas_free_tm(sc, tm); 1254 return; 1255 } 1256 1257 if (reply == NULL) { 1258 mpssas_log_command(tm, "NULL reset reply for tm %p\n", tm); 1259 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { 1260 /* this completion was due to a reset, just cleanup */ 1261 targ->flags &= ~MPSSAS_TARGET_INRESET; 1262 targ->tm = NULL; 1263 mpssas_free_tm(sc, tm); 1264 } 1265 else { 1266 /* we should have gotten a reply. */ 1267 mps_reinit(sc); 1268 } 1269 return; 1270 } 1271 1272 mpssas_log_command(tm, 1273 "target reset status 0x%x code 0x%x count %u\n", 1274 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), 1275 le32toh(reply->TerminationCount)); 1276 1277 targ->flags &= ~MPSSAS_TARGET_INRESET; 1278 1279 if (targ->outstanding == 0) { 1280 /* we've finished recovery for this target and all 1281 * of its logical units. 1282 */ 1283 mpssas_log_command(tm, 1284 "recovery finished after target reset\n"); 1285 1286 mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, 1287 CAM_LUN_WILDCARD); 1288 1289 targ->tm = NULL; 1290 mpssas_free_tm(sc, tm); 1291 } 1292 else { 1293 /* after a target reset, if this target still has 1294 * outstanding commands, the reset effectively failed, 1295 * regardless of the status reported. escalate. 1296 */ 1297 mpssas_log_command(tm, 1298 "target reset complete for tm %p, but still have %u command(s)\n", 1299 tm, targ->outstanding); 1300 mps_reinit(sc); 1301 } 1302 } 1303 1304 #define MPS_RESET_TIMEOUT 30 1305 1306 static int 1307 mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm, uint8_t type) 1308 { 1309 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 1310 struct mpssas_target *target; 1311 int err; 1312 1313 target = tm->cm_targ; 1314 if (target->handle == 0) { 1315 mps_printf(sc, "%s null devhandle for target_id %d\n", 1316 __func__, target->tid); 1317 return -1; 1318 } 1319 1320 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 1321 req->DevHandle = htole16(target->handle); 1322 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 1323 req->TaskType = type; 1324 1325 if (type == MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET) { 1326 /* XXX Need to handle invalid LUNs */ 1327 MPS_SET_LUN(req->LUN, tm->cm_lun); 1328 tm->cm_targ->logical_unit_resets++; 1329 mpssas_log_command(tm, "sending logical unit reset\n"); 1330 tm->cm_complete = mpssas_logical_unit_reset_complete; 1331 } 1332 else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) { 1333 /* Target reset method = SAS Hard Link Reset / SATA Link Reset */ 1334 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; 1335 tm->cm_targ->target_resets++; 1336 tm->cm_targ->flags |= MPSSAS_TARGET_INRESET; 1337 mpssas_log_command(tm, "sending target reset\n"); 1338 tm->cm_complete = mpssas_target_reset_complete; 1339 } 1340 else { 1341 mps_printf(sc, "unexpected reset type 0x%x\n", type); 1342 return -1; 1343 } 1344 1345 tm->cm_data = NULL; 1346 tm->cm_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 1347 tm->cm_complete_data = (void *)tm; 1348 1349 callout_reset(&tm->cm_callout, MPS_RESET_TIMEOUT * hz, 1350 mpssas_tm_timeout, tm); 1351 1352 err = mps_map_command(sc, tm); 1353 if (err) 1354 mpssas_log_command(tm, 1355 "error %d sending reset type %u\n", 1356 err, type); 1357 1358 return err; 1359 } 1360 1361 1362 static void 1363 mpssas_abort_complete(struct mps_softc *sc, struct mps_command *tm) 1364 { 1365 struct mps_command *cm; 1366 MPI2_SCSI_TASK_MANAGE_REPLY *reply; 1367 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 1368 struct mpssas_target *targ; 1369 1370 callout_stop(&tm->cm_callout); 1371 1372 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 1373 reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 1374 targ = tm->cm_targ; 1375 1376 /* 1377 * Currently there should be no way we can hit this case. It only 1378 * happens when we have a failure to allocate chain frames, and 1379 * task management commands don't have S/G lists. 1380 */ 1381 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 1382 mpssas_log_command(tm, 1383 "cm_flags = %#x for abort %p TaskMID %u!\n", 1384 tm->cm_flags, tm, le16toh(req->TaskMID)); 1385 mpssas_free_tm(sc, tm); 1386 return; 1387 } 1388 1389 if (reply == NULL) { 1390 mpssas_log_command(tm, 1391 "NULL abort reply for tm %p TaskMID %u\n", 1392 tm, le16toh(req->TaskMID)); 1393 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { 1394 /* this completion was due to a reset, just cleanup */ 1395 targ->tm = NULL; 1396 mpssas_free_tm(sc, tm); 1397 } 1398 else { 1399 /* we should have gotten a reply. */ 1400 mps_reinit(sc); 1401 } 1402 return; 1403 } 1404 1405 mpssas_log_command(tm, 1406 "abort TaskMID %u status 0x%x code 0x%x count %u\n", 1407 le16toh(req->TaskMID), 1408 le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), 1409 le32toh(reply->TerminationCount)); 1410 1411 cm = TAILQ_FIRST(&tm->cm_targ->timedout_commands); 1412 if (cm == NULL) { 1413 /* if there are no more timedout commands, we're done with 1414 * error recovery for this target. 1415 */ 1416 mpssas_log_command(tm, 1417 "finished recovery after aborting TaskMID %u\n", 1418 le16toh(req->TaskMID)); 1419 1420 targ->tm = NULL; 1421 mpssas_free_tm(sc, tm); 1422 } 1423 else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) { 1424 /* abort success, but we have more timedout commands to abort */ 1425 mpssas_log_command(tm, 1426 "continuing recovery after aborting TaskMID %u\n", 1427 le16toh(req->TaskMID)); 1428 1429 mpssas_send_abort(sc, tm, cm); 1430 } 1431 else { 1432 /* we didn't get a command completion, so the abort 1433 * failed as far as we're concerned. escalate. 1434 */ 1435 mpssas_log_command(tm, 1436 "abort failed for TaskMID %u tm %p\n", 1437 le16toh(req->TaskMID), tm); 1438 1439 mpssas_send_reset(sc, tm, 1440 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET); 1441 } 1442 } 1443 1444 #define MPS_ABORT_TIMEOUT 5 1445 1446 static int 1447 mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm, struct mps_command *cm) 1448 { 1449 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 1450 struct mpssas_target *targ; 1451 int err; 1452 1453 targ = cm->cm_targ; 1454 if (targ->handle == 0) { 1455 mps_printf(sc, "%s null devhandle for target_id %d\n", 1456 __func__, cm->cm_ccb->ccb_h.target_id); 1457 return -1; 1458 } 1459 1460 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 1461 req->DevHandle = htole16(targ->handle); 1462 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 1463 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK; 1464 1465 /* XXX Need to handle invalid LUNs */ 1466 MPS_SET_LUN(req->LUN, cm->cm_ccb->ccb_h.target_lun); 1467 1468 req->TaskMID = htole16(cm->cm_desc.Default.SMID); 1469 1470 tm->cm_data = NULL; 1471 tm->cm_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 1472 tm->cm_complete = mpssas_abort_complete; 1473 tm->cm_complete_data = (void *)tm; 1474 tm->cm_targ = cm->cm_targ; 1475 tm->cm_lun = cm->cm_lun; 1476 1477 callout_reset(&tm->cm_callout, MPS_ABORT_TIMEOUT * hz, 1478 mpssas_tm_timeout, tm); 1479 1480 targ->aborts++; 1481 1482 err = mps_map_command(sc, tm); 1483 if (err) 1484 mpssas_log_command(tm, 1485 "error %d sending abort for cm %p SMID %u\n", 1486 err, cm, req->TaskMID); 1487 return err; 1488 } 1489 1490 1491 static void 1492 mpssas_scsiio_timeout(void *data) 1493 { 1494 struct mps_softc *sc; 1495 struct mps_command *cm; 1496 struct mpssas_target *targ; 1497 1498 cm = (struct mps_command *)data; 1499 sc = cm->cm_sc; 1500 1501 mtx_assert(&sc->mps_mtx, MA_OWNED); 1502 1503 mps_printf(sc, "%s checking sc %p cm %p\n", __func__, sc, cm); 1504 1505 /* 1506 * Run the interrupt handler to make sure it's not pending. This 1507 * isn't perfect because the command could have already completed 1508 * and been re-used, though this is unlikely. 1509 */ 1510 mps_intr_locked(sc); 1511 if (cm->cm_state == MPS_CM_STATE_FREE) { 1512 mps_printf(sc, "SCSI command %p sc %p almost timed out\n", cm, sc); 1513 return; 1514 } 1515 1516 if (cm->cm_ccb == NULL) { 1517 mps_printf(sc, "command timeout with NULL ccb\n"); 1518 return; 1519 } 1520 1521 mpssas_log_command(cm, "command timeout cm %p ccb %p\n", 1522 cm, cm->cm_ccb); 1523 1524 targ = cm->cm_targ; 1525 targ->timeouts++; 1526 1527 /* XXX first, check the firmware state, to see if it's still 1528 * operational. if not, do a diag reset. 1529 */ 1530 1531 cm->cm_ccb->ccb_h.status = CAM_CMD_TIMEOUT; 1532 cm->cm_state = MPS_CM_STATE_TIMEDOUT; 1533 TAILQ_INSERT_TAIL(&targ->timedout_commands, cm, cm_recovery); 1534 1535 if (targ->tm != NULL) { 1536 /* target already in recovery, just queue up another 1537 * timedout command to be processed later. 1538 */ 1539 mps_printf(sc, "queued timedout cm %p for processing by tm %p\n", 1540 cm, targ->tm); 1541 } 1542 else if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) { 1543 mps_printf(sc, "timedout cm %p allocated tm %p\n", 1544 cm, targ->tm); 1545 1546 /* start recovery by aborting the first timedout command */ 1547 mpssas_send_abort(sc, targ->tm, cm); 1548 } 1549 else { 1550 /* XXX queue this target up for recovery once a TM becomes 1551 * available. The firmware only has a limited number of 1552 * HighPriority credits for the high priority requests used 1553 * for task management, and we ran out. 1554 * 1555 * Isilon: don't worry about this for now, since we have 1556 * more credits than disks in an enclosure, and limit 1557 * ourselves to one TM per target for recovery. 1558 */ 1559 mps_printf(sc, "timedout cm %p failed to allocate a tm\n", 1560 cm); 1561 } 1562 1563 } 1564 1565 static void 1566 mpssas_action_scsiio(struct mpssas_softc *sassc, union ccb *ccb) 1567 { 1568 MPI2_SCSI_IO_REQUEST *req; 1569 struct ccb_scsiio *csio; 1570 struct mps_softc *sc; 1571 struct mpssas_target *targ; 1572 struct mpssas_lun *lun; 1573 struct mps_command *cm; 1574 uint8_t i, lba_byte, *ref_tag_addr; 1575 uint16_t eedp_flags; 1576 uint32_t mpi_control; 1577 1578 sc = sassc->sc; 1579 mtx_assert(&sc->mps_mtx, MA_OWNED); 1580 1581 csio = &ccb->csio; 1582 targ = &sassc->targets[csio->ccb_h.target_id]; 1583 mps_dprint(sc, MPS_TRACE, "%s ccb %p target flag %x\n", __func__, ccb, targ->flags); 1584 if (targ->handle == 0x0) { 1585 mps_dprint(sc, MPS_TRACE, "%s NULL handle for target %u\n", 1586 __func__, csio->ccb_h.target_id); 1587 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1588 xpt_done(ccb); 1589 return; 1590 } 1591 if (targ->flags & MPS_TARGET_FLAGS_RAID_COMPONENT) { 1592 mps_dprint(sc, MPS_TRACE, "%s Raid component no SCSI IO supported %u\n", 1593 __func__, csio->ccb_h.target_id); 1594 csio->ccb_h.status = CAM_TID_INVALID; 1595 xpt_done(ccb); 1596 return; 1597 } 1598 /* 1599 * If devinfo is 0 this will be a volume. In that case don't tell CAM 1600 * that the volume has timed out. We want volumes to be enumerated 1601 * until they are deleted/removed, not just failed. 1602 */ 1603 if (targ->flags & MPSSAS_TARGET_INREMOVAL) { 1604 if (targ->devinfo == 0) 1605 csio->ccb_h.status = CAM_REQ_CMP; 1606 else 1607 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1608 xpt_done(ccb); 1609 return; 1610 } 1611 1612 if ((sc->mps_flags & MPS_FLAGS_SHUTDOWN) != 0) { 1613 mps_dprint(sc, MPS_TRACE, "%s shutting down\n", __func__); 1614 csio->ccb_h.status = CAM_TID_INVALID; 1615 xpt_done(ccb); 1616 return; 1617 } 1618 1619 cm = mps_alloc_command(sc); 1620 if (cm == NULL) { 1621 if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) { 1622 xpt_freeze_simq(sassc->sim, 1); 1623 sassc->flags |= MPSSAS_QUEUE_FROZEN; 1624 } 1625 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 1626 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1627 xpt_done(ccb); 1628 return; 1629 } 1630 1631 req = (MPI2_SCSI_IO_REQUEST *)cm->cm_req; 1632 bzero(req, sizeof(*req)); 1633 req->DevHandle = htole16(targ->handle); 1634 req->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; 1635 req->MsgFlags = 0; 1636 req->SenseBufferLowAddress = htole32(cm->cm_sense_busaddr); 1637 req->SenseBufferLength = MPS_SENSE_LEN; 1638 req->SGLFlags = 0; 1639 req->ChainOffset = 0; 1640 req->SGLOffset0 = 24; /* 32bit word offset to the SGL */ 1641 req->SGLOffset1= 0; 1642 req->SGLOffset2= 0; 1643 req->SGLOffset3= 0; 1644 req->SkipCount = 0; 1645 req->DataLength = htole32(csio->dxfer_len); 1646 req->BidirectionalDataLength = 0; 1647 req->IoFlags = htole16(csio->cdb_len); 1648 req->EEDPFlags = 0; 1649 1650 /* Note: BiDirectional transfers are not supported */ 1651 switch (csio->ccb_h.flags & CAM_DIR_MASK) { 1652 case CAM_DIR_IN: 1653 mpi_control = MPI2_SCSIIO_CONTROL_READ; 1654 cm->cm_flags |= MPS_CM_FLAGS_DATAIN; 1655 break; 1656 case CAM_DIR_OUT: 1657 mpi_control = MPI2_SCSIIO_CONTROL_WRITE; 1658 cm->cm_flags |= MPS_CM_FLAGS_DATAOUT; 1659 break; 1660 case CAM_DIR_NONE: 1661 default: 1662 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER; 1663 break; 1664 } 1665 1666 if (csio->cdb_len == 32) 1667 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT; 1668 /* 1669 * It looks like the hardware doesn't require an explicit tag 1670 * number for each transaction. SAM Task Management not supported 1671 * at the moment. 1672 */ 1673 switch (csio->tag_action) { 1674 case MSG_HEAD_OF_Q_TAG: 1675 mpi_control |= MPI2_SCSIIO_CONTROL_HEADOFQ; 1676 break; 1677 case MSG_ORDERED_Q_TAG: 1678 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ; 1679 break; 1680 case MSG_ACA_TASK: 1681 mpi_control |= MPI2_SCSIIO_CONTROL_ACAQ; 1682 break; 1683 case CAM_TAG_ACTION_NONE: 1684 case MSG_SIMPLE_Q_TAG: 1685 default: 1686 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; 1687 break; 1688 } 1689 mpi_control |= sc->mapping_table[csio->ccb_h.target_id].TLR_bits; 1690 req->Control = htole32(mpi_control); 1691 if (MPS_SET_LUN(req->LUN, csio->ccb_h.target_lun) != 0) { 1692 mps_free_command(sc, cm); 1693 ccb->ccb_h.status = CAM_LUN_INVALID; 1694 xpt_done(ccb); 1695 return; 1696 } 1697 1698 if (csio->ccb_h.flags & CAM_CDB_POINTER) 1699 bcopy(csio->cdb_io.cdb_ptr, &req->CDB.CDB32[0], csio->cdb_len); 1700 else 1701 bcopy(csio->cdb_io.cdb_bytes, &req->CDB.CDB32[0],csio->cdb_len); 1702 req->IoFlags = htole16(csio->cdb_len); 1703 1704 /* 1705 * Check if EEDP is supported and enabled. If it is then check if the 1706 * SCSI opcode could be using EEDP. If so, make sure the LUN exists and 1707 * is formatted for EEDP support. If all of this is true, set CDB up 1708 * for EEDP transfer. 1709 */ 1710 eedp_flags = op_code_prot[req->CDB.CDB32[0]]; 1711 if (sc->eedp_enabled && eedp_flags) { 1712 SLIST_FOREACH(lun, &targ->luns, lun_link) { 1713 if (lun->lun_id == csio->ccb_h.target_lun) { 1714 break; 1715 } 1716 } 1717 1718 if ((lun != NULL) && (lun->eedp_formatted)) { 1719 req->EEDPBlockSize = htole16(lun->eedp_block_size); 1720 eedp_flags |= (MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG | 1721 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG | 1722 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD); 1723 req->EEDPFlags = htole16(eedp_flags); 1724 1725 /* 1726 * If CDB less than 32, fill in Primary Ref Tag with 1727 * low 4 bytes of LBA. If CDB is 32, tag stuff is 1728 * already there. Also, set protection bit. FreeBSD 1729 * currently does not support CDBs bigger than 16, but 1730 * the code doesn't hurt, and will be here for the 1731 * future. 1732 */ 1733 if (csio->cdb_len != 32) { 1734 lba_byte = (csio->cdb_len == 16) ? 6 : 2; 1735 ref_tag_addr = (uint8_t *)&req->CDB.EEDP32. 1736 PrimaryReferenceTag; 1737 for (i = 0; i < 4; i++) { 1738 *ref_tag_addr = 1739 req->CDB.CDB32[lba_byte + i]; 1740 ref_tag_addr++; 1741 } 1742 req->CDB.EEDP32.PrimaryReferenceTag = 1743 htole32(req->CDB.EEDP32.PrimaryReferenceTag); 1744 req->CDB.EEDP32.PrimaryApplicationTagMask = 1745 0xFFFF; 1746 req->CDB.CDB32[1] = (req->CDB.CDB32[1] & 0x1F) | 1747 0x20; 1748 } else { 1749 eedp_flags |= 1750 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_APPTAG; 1751 req->EEDPFlags = htole16(eedp_flags); 1752 req->CDB.CDB32[10] = (req->CDB.CDB32[10] & 1753 0x1F) | 0x20; 1754 } 1755 } 1756 } 1757 1758 cm->cm_data = csio->data_ptr; 1759 cm->cm_length = csio->dxfer_len; 1760 cm->cm_sge = &req->SGL; 1761 cm->cm_sglsize = (32 - 24) * 4; 1762 cm->cm_desc.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; 1763 cm->cm_desc.SCSIIO.DevHandle = htole16(targ->handle); 1764 cm->cm_complete = mpssas_scsiio_complete; 1765 cm->cm_complete_data = ccb; 1766 cm->cm_targ = targ; 1767 cm->cm_lun = csio->ccb_h.target_lun; 1768 cm->cm_ccb = ccb; 1769 1770 /* 1771 * If HBA is a WD and the command is not for a retry, try to build a 1772 * direct I/O message. If failed, or the command is for a retry, send 1773 * the I/O to the IR volume itself. 1774 */ 1775 if (sc->WD_valid_config) { 1776 if (ccb->ccb_h.status != MPS_WD_RETRY) { 1777 mpssas_direct_drive_io(sassc, cm, ccb); 1778 } else { 1779 ccb->ccb_h.status = CAM_REQ_INPROG; 1780 } 1781 } 1782 1783 callout_reset(&cm->cm_callout, (ccb->ccb_h.timeout * hz) / 1000, 1784 mpssas_scsiio_timeout, cm); 1785 1786 targ->issued++; 1787 targ->outstanding++; 1788 TAILQ_INSERT_TAIL(&targ->commands, cm, cm_link); 1789 1790 if ((sc->mps_debug & MPS_TRACE) != 0) 1791 mpssas_log_command(cm, "%s cm %p ccb %p outstanding %u\n", 1792 __func__, cm, ccb, targ->outstanding); 1793 1794 mps_map_command(sc, cm); 1795 return; 1796 } 1797 1798 static void 1799 mps_response_code(struct mps_softc *sc, u8 response_code) 1800 { 1801 char *desc; 1802 1803 switch (response_code) { 1804 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE: 1805 desc = "task management request completed"; 1806 break; 1807 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME: 1808 desc = "invalid frame"; 1809 break; 1810 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 1811 desc = "task management request not supported"; 1812 break; 1813 case MPI2_SCSITASKMGMT_RSP_TM_FAILED: 1814 desc = "task management request failed"; 1815 break; 1816 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED: 1817 desc = "task management request succeeded"; 1818 break; 1819 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN: 1820 desc = "invalid lun"; 1821 break; 1822 case 0xA: 1823 desc = "overlapped tag attempted"; 1824 break; 1825 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 1826 desc = "task queued, however not sent to target"; 1827 break; 1828 default: 1829 desc = "unknown"; 1830 break; 1831 } 1832 mps_dprint(sc, MPS_INFO, "response_code(0x%01x): %s\n", 1833 response_code, desc); 1834 } 1835 /** 1836 * mps_sc_failed_io_info - translated non-succesfull SCSI_IO request 1837 */ 1838 static void 1839 mps_sc_failed_io_info(struct mps_softc *sc, struct ccb_scsiio *csio, 1840 Mpi2SCSIIOReply_t *mpi_reply) 1841 { 1842 u32 response_info; 1843 u8 *response_bytes; 1844 u16 ioc_status = le16toh(mpi_reply->IOCStatus) & 1845 MPI2_IOCSTATUS_MASK; 1846 u8 scsi_state = mpi_reply->SCSIState; 1847 u8 scsi_status = mpi_reply->SCSIStatus; 1848 char *desc_ioc_state = NULL; 1849 char *desc_scsi_status = NULL; 1850 char *desc_scsi_state = sc->tmp_string; 1851 u32 log_info = le32toh(mpi_reply->IOCLogInfo); 1852 1853 if (log_info == 0x31170000) 1854 return; 1855 1856 switch (ioc_status) { 1857 case MPI2_IOCSTATUS_SUCCESS: 1858 desc_ioc_state = "success"; 1859 break; 1860 case MPI2_IOCSTATUS_INVALID_FUNCTION: 1861 desc_ioc_state = "invalid function"; 1862 break; 1863 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 1864 desc_ioc_state = "scsi recovered error"; 1865 break; 1866 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 1867 desc_ioc_state = "scsi invalid dev handle"; 1868 break; 1869 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 1870 desc_ioc_state = "scsi device not there"; 1871 break; 1872 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 1873 desc_ioc_state = "scsi data overrun"; 1874 break; 1875 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 1876 desc_ioc_state = "scsi data underrun"; 1877 break; 1878 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 1879 desc_ioc_state = "scsi io data error"; 1880 break; 1881 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 1882 desc_ioc_state = "scsi protocol error"; 1883 break; 1884 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 1885 desc_ioc_state = "scsi task terminated"; 1886 break; 1887 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 1888 desc_ioc_state = "scsi residual mismatch"; 1889 break; 1890 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 1891 desc_ioc_state = "scsi task mgmt failed"; 1892 break; 1893 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 1894 desc_ioc_state = "scsi ioc terminated"; 1895 break; 1896 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 1897 desc_ioc_state = "scsi ext terminated"; 1898 break; 1899 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR: 1900 desc_ioc_state = "eedp guard error"; 1901 break; 1902 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR: 1903 desc_ioc_state = "eedp ref tag error"; 1904 break; 1905 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR: 1906 desc_ioc_state = "eedp app tag error"; 1907 break; 1908 default: 1909 desc_ioc_state = "unknown"; 1910 break; 1911 } 1912 1913 switch (scsi_status) { 1914 case MPI2_SCSI_STATUS_GOOD: 1915 desc_scsi_status = "good"; 1916 break; 1917 case MPI2_SCSI_STATUS_CHECK_CONDITION: 1918 desc_scsi_status = "check condition"; 1919 break; 1920 case MPI2_SCSI_STATUS_CONDITION_MET: 1921 desc_scsi_status = "condition met"; 1922 break; 1923 case MPI2_SCSI_STATUS_BUSY: 1924 desc_scsi_status = "busy"; 1925 break; 1926 case MPI2_SCSI_STATUS_INTERMEDIATE: 1927 desc_scsi_status = "intermediate"; 1928 break; 1929 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET: 1930 desc_scsi_status = "intermediate condmet"; 1931 break; 1932 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT: 1933 desc_scsi_status = "reservation conflict"; 1934 break; 1935 case MPI2_SCSI_STATUS_COMMAND_TERMINATED: 1936 desc_scsi_status = "command terminated"; 1937 break; 1938 case MPI2_SCSI_STATUS_TASK_SET_FULL: 1939 desc_scsi_status = "task set full"; 1940 break; 1941 case MPI2_SCSI_STATUS_ACA_ACTIVE: 1942 desc_scsi_status = "aca active"; 1943 break; 1944 case MPI2_SCSI_STATUS_TASK_ABORTED: 1945 desc_scsi_status = "task aborted"; 1946 break; 1947 default: 1948 desc_scsi_status = "unknown"; 1949 break; 1950 } 1951 1952 desc_scsi_state[0] = '\0'; 1953 if (!scsi_state) 1954 desc_scsi_state = " "; 1955 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) 1956 strcat(desc_scsi_state, "response info "); 1957 if (scsi_state & MPI2_SCSI_STATE_TERMINATED) 1958 strcat(desc_scsi_state, "state terminated "); 1959 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS) 1960 strcat(desc_scsi_state, "no status "); 1961 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED) 1962 strcat(desc_scsi_state, "autosense failed "); 1963 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) 1964 strcat(desc_scsi_state, "autosense valid "); 1965 1966 mps_dprint(sc, MPS_INFO, "\thandle(0x%04x), ioc_status(%s)(0x%04x), \n", 1967 le16toh(mpi_reply->DevHandle), 1968 desc_ioc_state, ioc_status); 1969 /* We can add more detail about underflow data here 1970 * TO-DO 1971 * */ 1972 mps_dprint(sc, MPS_INFO, "\tscsi_status(%s)(0x%02x), " 1973 "scsi_state(%s)(0x%02x)\n", desc_scsi_status, 1974 scsi_status, desc_scsi_state, scsi_state); 1975 1976 if (sc->mps_debug & MPS_INFO && 1977 scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) { 1978 mps_dprint(sc, MPS_INFO, "-> Sense Buffer Data : Start :\n"); 1979 scsi_sense_print(csio); 1980 mps_dprint(sc, MPS_INFO, "-> Sense Buffer Data : End :\n"); 1981 } 1982 1983 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) { 1984 response_info = le32toh(mpi_reply->ResponseInfo); 1985 response_bytes = (u8 *)&response_info; 1986 mps_response_code(sc,response_bytes[0]); 1987 } 1988 } 1989 1990 static void 1991 mpssas_scsiio_complete(struct mps_softc *sc, struct mps_command *cm) 1992 { 1993 MPI2_SCSI_IO_REPLY *rep; 1994 union ccb *ccb; 1995 struct ccb_scsiio *csio; 1996 struct mpssas_softc *sassc; 1997 struct scsi_vpd_supported_page_list *vpd_list = NULL; 1998 u8 *TLR_bits, TLR_on; 1999 int dir = 0, i; 2000 u16 alloc_len; 2001 2002 mps_dprint(sc, MPS_TRACE, 2003 "%s cm %p SMID %u ccb %p reply %p outstanding %u\n", 2004 __func__, cm, cm->cm_desc.Default.SMID, cm->cm_ccb, cm->cm_reply, 2005 cm->cm_targ->outstanding); 2006 2007 callout_stop(&cm->cm_callout); 2008 mtx_assert(&sc->mps_mtx, MA_OWNED); 2009 2010 sassc = sc->sassc; 2011 ccb = cm->cm_complete_data; 2012 csio = &ccb->csio; 2013 rep = (MPI2_SCSI_IO_REPLY *)cm->cm_reply; 2014 /* 2015 * XXX KDM if the chain allocation fails, does it matter if we do 2016 * the sync and unload here? It is simpler to do it in every case, 2017 * assuming it doesn't cause problems. 2018 */ 2019 if (cm->cm_data != NULL) { 2020 if (cm->cm_flags & MPS_CM_FLAGS_DATAIN) 2021 dir = BUS_DMASYNC_POSTREAD; 2022 else if (cm->cm_flags & MPS_CM_FLAGS_DATAOUT) 2023 dir = BUS_DMASYNC_POSTWRITE; 2024 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, dir); 2025 bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap); 2026 } 2027 2028 cm->cm_targ->completed++; 2029 cm->cm_targ->outstanding--; 2030 TAILQ_REMOVE(&cm->cm_targ->commands, cm, cm_link); 2031 2032 if (cm->cm_state == MPS_CM_STATE_TIMEDOUT) { 2033 TAILQ_REMOVE(&cm->cm_targ->timedout_commands, cm, cm_recovery); 2034 if (cm->cm_reply != NULL) 2035 mpssas_log_command(cm, 2036 "completed timedout cm %p ccb %p during recovery " 2037 "ioc %x scsi %x state %x xfer %u\n", 2038 cm, cm->cm_ccb, 2039 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, 2040 le32toh(rep->TransferCount)); 2041 else 2042 mpssas_log_command(cm, 2043 "completed timedout cm %p ccb %p during recovery\n", 2044 cm, cm->cm_ccb); 2045 } else if (cm->cm_targ->tm != NULL) { 2046 if (cm->cm_reply != NULL) 2047 mpssas_log_command(cm, 2048 "completed cm %p ccb %p during recovery " 2049 "ioc %x scsi %x state %x xfer %u\n", 2050 cm, cm->cm_ccb, 2051 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, 2052 le32toh(rep->TransferCount)); 2053 else 2054 mpssas_log_command(cm, 2055 "completed cm %p ccb %p during recovery\n", 2056 cm, cm->cm_ccb); 2057 } else if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { 2058 mpssas_log_command(cm, 2059 "reset completed cm %p ccb %p\n", 2060 cm, cm->cm_ccb); 2061 } 2062 2063 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 2064 /* 2065 * We ran into an error after we tried to map the command, 2066 * so we're getting a callback without queueing the command 2067 * to the hardware. So we set the status here, and it will 2068 * be retained below. We'll go through the "fast path", 2069 * because there can be no reply when we haven't actually 2070 * gone out to the hardware. 2071 */ 2072 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 2073 2074 /* 2075 * Currently the only error included in the mask is 2076 * MPS_CM_FLAGS_CHAIN_FAILED, which means we're out of 2077 * chain frames. We need to freeze the queue until we get 2078 * a command that completed without this error, which will 2079 * hopefully have some chain frames attached that we can 2080 * use. If we wanted to get smarter about it, we would 2081 * only unfreeze the queue in this condition when we're 2082 * sure that we're getting some chain frames back. That's 2083 * probably unnecessary. 2084 */ 2085 if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) { 2086 xpt_freeze_simq(sassc->sim, 1); 2087 sassc->flags |= MPSSAS_QUEUE_FROZEN; 2088 mps_dprint(sc, MPS_INFO, "Error sending command, " 2089 "freezing SIM queue\n"); 2090 } 2091 } 2092 2093 /* Take the fast path to completion */ 2094 if (cm->cm_reply == NULL) { 2095 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) { 2096 if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) 2097 ccb->ccb_h.status = CAM_SCSI_BUS_RESET; 2098 else { 2099 ccb->ccb_h.status = CAM_REQ_CMP; 2100 ccb->csio.scsi_status = SCSI_STATUS_OK; 2101 } 2102 if (sassc->flags & MPSSAS_QUEUE_FROZEN) { 2103 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2104 sassc->flags &= ~MPSSAS_QUEUE_FROZEN; 2105 mps_dprint(sc, MPS_INFO, 2106 "Unfreezing SIM queue\n"); 2107 } 2108 } 2109 2110 /* 2111 * There are two scenarios where the status won't be 2112 * CAM_REQ_CMP. The first is if MPS_CM_FLAGS_ERROR_MASK is 2113 * set, the second is in the MPS_FLAGS_DIAGRESET above. 2114 */ 2115 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2116 /* 2117 * Freeze the dev queue so that commands are 2118 * executed in the correct order with after error 2119 * recovery. 2120 */ 2121 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2122 xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1); 2123 } 2124 mps_free_command(sc, cm); 2125 xpt_done(ccb); 2126 return; 2127 } 2128 2129 if (sc->mps_debug & MPS_TRACE) 2130 mpssas_log_command(cm, 2131 "ioc %x scsi %x state %x xfer %u\n", 2132 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, 2133 le32toh(rep->TransferCount)); 2134 2135 /* 2136 * If this is a Direct Drive I/O, reissue the I/O to the original IR 2137 * Volume if an error occurred (normal I/O retry). Use the original 2138 * CCB, but set a flag that this will be a retry so that it's sent to 2139 * the original volume. Free the command but reuse the CCB. 2140 */ 2141 if (cm->cm_flags & MPS_CM_FLAGS_DD_IO) { 2142 mps_free_command(sc, cm); 2143 ccb->ccb_h.status = MPS_WD_RETRY; 2144 mpssas_action_scsiio(sassc, ccb); 2145 return; 2146 } 2147 2148 switch (le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) { 2149 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: 2150 csio->resid = cm->cm_length - le32toh(rep->TransferCount); 2151 /* FALLTHROUGH */ 2152 case MPI2_IOCSTATUS_SUCCESS: 2153 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: 2154 2155 if ((le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) == 2156 MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR) 2157 mpssas_log_command(cm, "recovered error\n"); 2158 2159 /* Completion failed at the transport level. */ 2160 if (rep->SCSIState & (MPI2_SCSI_STATE_NO_SCSI_STATUS | 2161 MPI2_SCSI_STATE_TERMINATED)) { 2162 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2163 break; 2164 } 2165 2166 /* In a modern packetized environment, an autosense failure 2167 * implies that there's not much else that can be done to 2168 * recover the command. 2169 */ 2170 if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_FAILED) { 2171 ccb->ccb_h.status = CAM_AUTOSENSE_FAIL; 2172 break; 2173 } 2174 2175 /* 2176 * CAM doesn't care about SAS Response Info data, but if this is 2177 * the state check if TLR should be done. If not, clear the 2178 * TLR_bits for the target. 2179 */ 2180 if ((rep->SCSIState & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) && 2181 ((le32toh(rep->ResponseInfo) & MPI2_SCSI_RI_MASK_REASONCODE) == 2182 MPS_SCSI_RI_INVALID_FRAME)) { 2183 sc->mapping_table[csio->ccb_h.target_id].TLR_bits = 2184 (u8)MPI2_SCSIIO_CONTROL_NO_TLR; 2185 } 2186 2187 /* 2188 * Intentionally override the normal SCSI status reporting 2189 * for these two cases. These are likely to happen in a 2190 * multi-initiator environment, and we want to make sure that 2191 * CAM retries these commands rather than fail them. 2192 */ 2193 if ((rep->SCSIStatus == MPI2_SCSI_STATUS_COMMAND_TERMINATED) || 2194 (rep->SCSIStatus == MPI2_SCSI_STATUS_TASK_ABORTED)) { 2195 ccb->ccb_h.status = CAM_REQ_ABORTED; 2196 break; 2197 } 2198 2199 /* Handle normal status and sense */ 2200 csio->scsi_status = rep->SCSIStatus; 2201 if (rep->SCSIStatus == MPI2_SCSI_STATUS_GOOD) 2202 ccb->ccb_h.status = CAM_REQ_CMP; 2203 else 2204 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; 2205 2206 if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_VALID) { 2207 int sense_len, returned_sense_len; 2208 2209 returned_sense_len = min(le32toh(rep->SenseCount), 2210 sizeof(struct scsi_sense_data)); 2211 if (returned_sense_len < ccb->csio.sense_len) 2212 ccb->csio.sense_resid = ccb->csio.sense_len - 2213 returned_sense_len; 2214 else 2215 ccb->csio.sense_resid = 0; 2216 2217 sense_len = min(returned_sense_len, 2218 ccb->csio.sense_len - ccb->csio.sense_resid); 2219 bzero(&ccb->csio.sense_data, 2220 sizeof(ccb->csio.sense_data)); 2221 bcopy(cm->cm_sense, &ccb->csio.sense_data, sense_len); 2222 ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 2223 } 2224 2225 /* 2226 * Check if this is an INQUIRY command. If it's a VPD inquiry, 2227 * and it's page code 0 (Supported Page List), and there is 2228 * inquiry data, and this is for a sequential access device, and 2229 * the device is an SSP target, and TLR is supported by the 2230 * controller, turn the TLR_bits value ON if page 0x90 is 2231 * supported. 2232 */ 2233 if ((csio->cdb_io.cdb_bytes[0] == INQUIRY) && 2234 (csio->cdb_io.cdb_bytes[1] & SI_EVPD) && 2235 (csio->cdb_io.cdb_bytes[2] == SVPD_SUPPORTED_PAGE_LIST) && 2236 (csio->data_ptr != NULL) && (((uint8_t *)cm->cm_data)[0] == 2237 T_SEQUENTIAL) && (sc->control_TLR) && 2238 (sc->mapping_table[csio->ccb_h.target_id].device_info & 2239 MPI2_SAS_DEVICE_INFO_SSP_TARGET)) { 2240 vpd_list = (struct scsi_vpd_supported_page_list *) 2241 csio->data_ptr; 2242 TLR_bits = &sc->mapping_table[csio->ccb_h.target_id]. 2243 TLR_bits; 2244 *TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; 2245 TLR_on = (u8)MPI2_SCSIIO_CONTROL_TLR_ON; 2246 alloc_len = ((u16)csio->cdb_io.cdb_bytes[3] << 8) + 2247 csio->cdb_io.cdb_bytes[4]; 2248 for (i = 0; i < MIN(vpd_list->length, alloc_len); i++) { 2249 if (vpd_list->list[i] == 0x90) { 2250 *TLR_bits = TLR_on; 2251 break; 2252 } 2253 } 2254 } 2255 break; 2256 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: 2257 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 2258 /* 2259 * If devinfo is 0 this will be a volume. In that case don't 2260 * tell CAM that the volume is not there. We want volumes to 2261 * be enumerated until they are deleted/removed, not just 2262 * failed. 2263 */ 2264 if (cm->cm_targ->devinfo == 0) 2265 ccb->ccb_h.status = CAM_REQ_CMP; 2266 else 2267 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2268 break; 2269 case MPI2_IOCSTATUS_INVALID_SGL: 2270 mps_print_scsiio_cmd(sc, cm); 2271 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR; 2272 break; 2273 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: 2274 /* 2275 * This is one of the responses that comes back when an I/O 2276 * has been aborted. If it is because of a timeout that we 2277 * initiated, just set the status to CAM_CMD_TIMEOUT. 2278 * Otherwise set it to CAM_REQ_ABORTED. The effect on the 2279 * command is the same (it gets retried, subject to the 2280 * retry counter), the only difference is what gets printed 2281 * on the console. 2282 */ 2283 if (cm->cm_state == MPS_CM_STATE_TIMEDOUT) 2284 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2285 else 2286 ccb->ccb_h.status = CAM_REQ_ABORTED; 2287 break; 2288 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: 2289 /* resid is ignored for this condition */ 2290 csio->resid = 0; 2291 ccb->ccb_h.status = CAM_DATA_RUN_ERR; 2292 break; 2293 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: 2294 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: 2295 /* 2296 * Since these are generally external (i.e. hopefully 2297 * transient transport-related) errors, retry these without 2298 * decrementing the retry count. 2299 */ 2300 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2301 mpssas_log_command(cm, 2302 "terminated ioc %x scsi %x state %x xfer %u\n", 2303 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, 2304 le32toh(rep->TransferCount)); 2305 break; 2306 case MPI2_IOCSTATUS_INVALID_FUNCTION: 2307 case MPI2_IOCSTATUS_INTERNAL_ERROR: 2308 case MPI2_IOCSTATUS_INVALID_VPID: 2309 case MPI2_IOCSTATUS_INVALID_FIELD: 2310 case MPI2_IOCSTATUS_INVALID_STATE: 2311 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED: 2312 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: 2313 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: 2314 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 2315 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 2316 default: 2317 mpssas_log_command(cm, 2318 "completed ioc %x scsi %x state %x xfer %u\n", 2319 le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, 2320 le32toh(rep->TransferCount)); 2321 csio->resid = cm->cm_length; 2322 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2323 break; 2324 } 2325 2326 mps_sc_failed_io_info(sc,csio,rep); 2327 2328 if (sassc->flags & MPSSAS_QUEUE_FROZEN) { 2329 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2330 sassc->flags &= ~MPSSAS_QUEUE_FROZEN; 2331 mps_dprint(sc, MPS_INFO, "Command completed, " 2332 "unfreezing SIM queue\n"); 2333 } 2334 2335 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2336 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2337 xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1); 2338 } 2339 2340 mps_free_command(sc, cm); 2341 xpt_done(ccb); 2342 } 2343 2344 /* All Request reached here are Endian safe */ 2345 static void 2346 mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm, 2347 union ccb *ccb) { 2348 pMpi2SCSIIORequest_t pIO_req; 2349 struct mps_softc *sc = sassc->sc; 2350 uint64_t virtLBA; 2351 uint32_t physLBA, stripe_offset, stripe_unit; 2352 uint32_t io_size, column; 2353 uint8_t *ptrLBA, lba_idx, physLBA_byte, *CDB; 2354 2355 /* 2356 * If this is a valid SCSI command (Read6, Read10, Read16, Write6, 2357 * Write10, or Write16), build a direct I/O message. Otherwise, the I/O 2358 * will be sent to the IR volume itself. Since Read6 and Write6 are a 2359 * bit different than the 10/16 CDBs, handle them separately. 2360 */ 2361 pIO_req = (pMpi2SCSIIORequest_t)cm->cm_req; 2362 CDB = pIO_req->CDB.CDB32; 2363 2364 /* 2365 * Handle 6 byte CDBs. 2366 */ 2367 if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_6) || 2368 (CDB[0] == WRITE_6))) { 2369 /* 2370 * Get the transfer size in blocks. 2371 */ 2372 io_size = (cm->cm_length >> sc->DD_block_exponent); 2373 2374 /* 2375 * Get virtual LBA given in the CDB. 2376 */ 2377 virtLBA = ((uint64_t)(CDB[1] & 0x1F) << 16) | 2378 ((uint64_t)CDB[2] << 8) | (uint64_t)CDB[3]; 2379 2380 /* 2381 * Check that LBA range for I/O does not exceed volume's 2382 * MaxLBA. 2383 */ 2384 if ((virtLBA + (uint64_t)io_size - 1) <= 2385 sc->DD_max_lba) { 2386 /* 2387 * Check if the I/O crosses a stripe boundary. If not, 2388 * translate the virtual LBA to a physical LBA and set 2389 * the DevHandle for the PhysDisk to be used. If it 2390 * does cross a boundry, do normal I/O. To get the 2391 * right DevHandle to use, get the map number for the 2392 * column, then use that map number to look up the 2393 * DevHandle of the PhysDisk. 2394 */ 2395 stripe_offset = (uint32_t)virtLBA & 2396 (sc->DD_stripe_size - 1); 2397 if ((stripe_offset + io_size) <= sc->DD_stripe_size) { 2398 physLBA = (uint32_t)virtLBA >> 2399 sc->DD_stripe_exponent; 2400 stripe_unit = physLBA / sc->DD_num_phys_disks; 2401 column = physLBA % sc->DD_num_phys_disks; 2402 pIO_req->DevHandle = 2403 htole16(sc->DD_column_map[column].dev_handle); 2404 /* ???? Is this endian safe*/ 2405 cm->cm_desc.SCSIIO.DevHandle = 2406 pIO_req->DevHandle; 2407 2408 physLBA = (stripe_unit << 2409 sc->DD_stripe_exponent) + stripe_offset; 2410 ptrLBA = &pIO_req->CDB.CDB32[1]; 2411 physLBA_byte = (uint8_t)(physLBA >> 16); 2412 *ptrLBA = physLBA_byte; 2413 ptrLBA = &pIO_req->CDB.CDB32[2]; 2414 physLBA_byte = (uint8_t)(physLBA >> 8); 2415 *ptrLBA = physLBA_byte; 2416 ptrLBA = &pIO_req->CDB.CDB32[3]; 2417 physLBA_byte = (uint8_t)physLBA; 2418 *ptrLBA = physLBA_byte; 2419 2420 /* 2421 * Set flag that Direct Drive I/O is 2422 * being done. 2423 */ 2424 cm->cm_flags |= MPS_CM_FLAGS_DD_IO; 2425 } 2426 } 2427 return; 2428 } 2429 2430 /* 2431 * Handle 10, 12 or 16 byte CDBs. 2432 */ 2433 if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_10) || 2434 (CDB[0] == WRITE_10) || (CDB[0] == READ_16) || 2435 (CDB[0] == WRITE_16) || (CDB[0] == READ_12) || 2436 (CDB[0] == WRITE_12))) { 2437 /* 2438 * For 16-byte CDB's, verify that the upper 4 bytes of the CDB 2439 * are 0. If not, this is accessing beyond 2TB so handle it in 2440 * the else section. 10-byte and 12-byte CDB's are OK. 2441 * FreeBSD sends very rare 12 byte READ/WRITE, but driver is 2442 * ready to accept 12byte CDB for Direct IOs. 2443 */ 2444 if ((CDB[0] == READ_10 || CDB[0] == WRITE_10) || 2445 (CDB[0] == READ_12 || CDB[0] == WRITE_12) || 2446 !(CDB[2] | CDB[3] | CDB[4] | CDB[5])) { 2447 /* 2448 * Get the transfer size in blocks. 2449 */ 2450 io_size = (cm->cm_length >> sc->DD_block_exponent); 2451 2452 /* 2453 * Get virtual LBA. Point to correct lower 4 bytes of 2454 * LBA in the CDB depending on command. 2455 */ 2456 lba_idx = ((CDB[0] == READ_12) || 2457 (CDB[0] == WRITE_12) || 2458 (CDB[0] == READ_10) || 2459 (CDB[0] == WRITE_10))? 2 : 6; 2460 virtLBA = ((uint64_t)CDB[lba_idx] << 24) | 2461 ((uint64_t)CDB[lba_idx + 1] << 16) | 2462 ((uint64_t)CDB[lba_idx + 2] << 8) | 2463 (uint64_t)CDB[lba_idx + 3]; 2464 2465 /* 2466 * Check that LBA range for I/O does not exceed volume's 2467 * MaxLBA. 2468 */ 2469 if ((virtLBA + (uint64_t)io_size - 1) <= 2470 sc->DD_max_lba) { 2471 /* 2472 * Check if the I/O crosses a stripe boundary. 2473 * If not, translate the virtual LBA to a 2474 * physical LBA and set the DevHandle for the 2475 * PhysDisk to be used. If it does cross a 2476 * boundry, do normal I/O. To get the right 2477 * DevHandle to use, get the map number for the 2478 * column, then use that map number to look up 2479 * the DevHandle of the PhysDisk. 2480 */ 2481 stripe_offset = (uint32_t)virtLBA & 2482 (sc->DD_stripe_size - 1); 2483 if ((stripe_offset + io_size) <= 2484 sc->DD_stripe_size) { 2485 physLBA = (uint32_t)virtLBA >> 2486 sc->DD_stripe_exponent; 2487 stripe_unit = physLBA / 2488 sc->DD_num_phys_disks; 2489 column = physLBA % 2490 sc->DD_num_phys_disks; 2491 pIO_req->DevHandle = 2492 htole16(sc->DD_column_map[column]. 2493 dev_handle); 2494 cm->cm_desc.SCSIIO.DevHandle = 2495 pIO_req->DevHandle; 2496 2497 physLBA = (stripe_unit << 2498 sc->DD_stripe_exponent) + 2499 stripe_offset; 2500 ptrLBA = 2501 &pIO_req->CDB.CDB32[lba_idx]; 2502 physLBA_byte = (uint8_t)(physLBA >> 24); 2503 *ptrLBA = physLBA_byte; 2504 ptrLBA = 2505 &pIO_req->CDB.CDB32[lba_idx + 1]; 2506 physLBA_byte = (uint8_t)(physLBA >> 16); 2507 *ptrLBA = physLBA_byte; 2508 ptrLBA = 2509 &pIO_req->CDB.CDB32[lba_idx + 2]; 2510 physLBA_byte = (uint8_t)(physLBA >> 8); 2511 *ptrLBA = physLBA_byte; 2512 ptrLBA = 2513 &pIO_req->CDB.CDB32[lba_idx + 3]; 2514 physLBA_byte = (uint8_t)physLBA; 2515 *ptrLBA = physLBA_byte; 2516 2517 /* 2518 * Set flag that Direct Drive I/O is 2519 * being done. 2520 */ 2521 cm->cm_flags |= MPS_CM_FLAGS_DD_IO; 2522 } 2523 } 2524 } else { 2525 /* 2526 * 16-byte CDB and the upper 4 bytes of the CDB are not 2527 * 0. Get the transfer size in blocks. 2528 */ 2529 io_size = (cm->cm_length >> sc->DD_block_exponent); 2530 2531 /* 2532 * Get virtual LBA. 2533 */ 2534 virtLBA = ((uint64_t)CDB[2] << 54) | 2535 ((uint64_t)CDB[3] << 48) | 2536 ((uint64_t)CDB[4] << 40) | 2537 ((uint64_t)CDB[5] << 32) | 2538 ((uint64_t)CDB[6] << 24) | 2539 ((uint64_t)CDB[7] << 16) | 2540 ((uint64_t)CDB[8] << 8) | 2541 (uint64_t)CDB[9]; 2542 2543 /* 2544 * Check that LBA range for I/O does not exceed volume's 2545 * MaxLBA. 2546 */ 2547 if ((virtLBA + (uint64_t)io_size - 1) <= 2548 sc->DD_max_lba) { 2549 /* 2550 * Check if the I/O crosses a stripe boundary. 2551 * If not, translate the virtual LBA to a 2552 * physical LBA and set the DevHandle for the 2553 * PhysDisk to be used. If it does cross a 2554 * boundry, do normal I/O. To get the right 2555 * DevHandle to use, get the map number for the 2556 * column, then use that map number to look up 2557 * the DevHandle of the PhysDisk. 2558 */ 2559 stripe_offset = (uint32_t)virtLBA & 2560 (sc->DD_stripe_size - 1); 2561 if ((stripe_offset + io_size) <= 2562 sc->DD_stripe_size) { 2563 physLBA = (uint32_t)(virtLBA >> 2564 sc->DD_stripe_exponent); 2565 stripe_unit = physLBA / 2566 sc->DD_num_phys_disks; 2567 column = physLBA % 2568 sc->DD_num_phys_disks; 2569 pIO_req->DevHandle = 2570 htole16(sc->DD_column_map[column]. 2571 dev_handle); 2572 cm->cm_desc.SCSIIO.DevHandle = 2573 pIO_req->DevHandle; 2574 2575 physLBA = (stripe_unit << 2576 sc->DD_stripe_exponent) + 2577 stripe_offset; 2578 2579 /* 2580 * Set upper 4 bytes of LBA to 0. We 2581 * assume that the phys disks are less 2582 * than 2 TB's in size. Then, set the 2583 * lower 4 bytes. 2584 */ 2585 pIO_req->CDB.CDB32[2] = 0; 2586 pIO_req->CDB.CDB32[3] = 0; 2587 pIO_req->CDB.CDB32[4] = 0; 2588 pIO_req->CDB.CDB32[5] = 0; 2589 ptrLBA = &pIO_req->CDB.CDB32[6]; 2590 physLBA_byte = (uint8_t)(physLBA >> 24); 2591 *ptrLBA = physLBA_byte; 2592 ptrLBA = &pIO_req->CDB.CDB32[7]; 2593 physLBA_byte = (uint8_t)(physLBA >> 16); 2594 *ptrLBA = physLBA_byte; 2595 ptrLBA = &pIO_req->CDB.CDB32[8]; 2596 physLBA_byte = (uint8_t)(physLBA >> 8); 2597 *ptrLBA = physLBA_byte; 2598 ptrLBA = &pIO_req->CDB.CDB32[9]; 2599 physLBA_byte = (uint8_t)physLBA; 2600 *ptrLBA = physLBA_byte; 2601 2602 /* 2603 * Set flag that Direct Drive I/O is 2604 * being done. 2605 */ 2606 cm->cm_flags |= MPS_CM_FLAGS_DD_IO; 2607 } 2608 } 2609 } 2610 } 2611 } 2612 2613 #if __FreeBSD_version >= 900026 2614 static void 2615 mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm) 2616 { 2617 MPI2_SMP_PASSTHROUGH_REPLY *rpl; 2618 MPI2_SMP_PASSTHROUGH_REQUEST *req; 2619 uint64_t sasaddr; 2620 union ccb *ccb; 2621 2622 ccb = cm->cm_complete_data; 2623 2624 /* 2625 * Currently there should be no way we can hit this case. It only 2626 * happens when we have a failure to allocate chain frames, and SMP 2627 * commands require two S/G elements only. That should be handled 2628 * in the standard request size. 2629 */ 2630 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 2631 mps_printf(sc, "%s: cm_flags = %#x on SMP request!\n", 2632 __func__, cm->cm_flags); 2633 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2634 goto bailout; 2635 } 2636 2637 rpl = (MPI2_SMP_PASSTHROUGH_REPLY *)cm->cm_reply; 2638 if (rpl == NULL) { 2639 mps_dprint(sc, MPS_INFO, "%s: NULL cm_reply!\n", __func__); 2640 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2641 goto bailout; 2642 } 2643 2644 req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req; 2645 sasaddr = le32toh(req->SASAddress.Low); 2646 sasaddr |= ((uint64_t)(le32toh(req->SASAddress.High))) << 32; 2647 2648 if ((le16toh(rpl->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS || 2649 rpl->SASStatus != MPI2_SASSTATUS_SUCCESS) { 2650 mps_dprint(sc, MPS_INFO, "%s: IOCStatus %04x SASStatus %02x\n", 2651 __func__, le16toh(rpl->IOCStatus), rpl->SASStatus); 2652 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2653 goto bailout; 2654 } 2655 2656 mps_dprint(sc, MPS_INFO, "%s: SMP request to SAS address " 2657 "%#jx completed successfully\n", __func__, 2658 (uintmax_t)sasaddr); 2659 2660 if (ccb->smpio.smp_response[2] == SMP_FR_ACCEPTED) 2661 ccb->ccb_h.status = CAM_REQ_CMP; 2662 else 2663 ccb->ccb_h.status = CAM_SMP_STATUS_ERROR; 2664 2665 bailout: 2666 /* 2667 * We sync in both directions because we had DMAs in the S/G list 2668 * in both directions. 2669 */ 2670 bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, 2671 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2672 bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap); 2673 mps_free_command(sc, cm); 2674 xpt_done(ccb); 2675 } 2676 2677 static void 2678 mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb, uint64_t sasaddr) 2679 { 2680 struct mps_command *cm; 2681 uint8_t *request, *response; 2682 MPI2_SMP_PASSTHROUGH_REQUEST *req; 2683 struct mps_softc *sc; 2684 struct sglist *sg; 2685 int error; 2686 2687 sc = sassc->sc; 2688 sg = NULL; 2689 error = 0; 2690 2691 /* 2692 * XXX We don't yet support physical addresses here. 2693 */ 2694 if (ccb->ccb_h.flags & (CAM_DATA_PHYS|CAM_SG_LIST_PHYS)) { 2695 mps_printf(sc, "%s: physical addresses not supported\n", 2696 __func__); 2697 ccb->ccb_h.status = CAM_REQ_INVALID; 2698 xpt_done(ccb); 2699 return; 2700 } 2701 2702 /* 2703 * If the user wants to send an S/G list, check to make sure they 2704 * have single buffers. 2705 */ 2706 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) { 2707 /* 2708 * The chip does not support more than one buffer for the 2709 * request or response. 2710 */ 2711 if ((ccb->smpio.smp_request_sglist_cnt > 1) 2712 || (ccb->smpio.smp_response_sglist_cnt > 1)) { 2713 mps_printf(sc, "%s: multiple request or response " 2714 "buffer segments not supported for SMP\n", 2715 __func__); 2716 ccb->ccb_h.status = CAM_REQ_INVALID; 2717 xpt_done(ccb); 2718 return; 2719 } 2720 2721 /* 2722 * The CAM_SCATTER_VALID flag was originally implemented 2723 * for the XPT_SCSI_IO CCB, which only has one data pointer. 2724 * We have two. So, just take that flag to mean that we 2725 * might have S/G lists, and look at the S/G segment count 2726 * to figure out whether that is the case for each individual 2727 * buffer. 2728 */ 2729 if (ccb->smpio.smp_request_sglist_cnt != 0) { 2730 bus_dma_segment_t *req_sg; 2731 2732 req_sg = (bus_dma_segment_t *)ccb->smpio.smp_request; 2733 request = (uint8_t *)(uintptr_t)req_sg[0].ds_addr; 2734 } else 2735 request = ccb->smpio.smp_request; 2736 2737 if (ccb->smpio.smp_response_sglist_cnt != 0) { 2738 bus_dma_segment_t *rsp_sg; 2739 2740 rsp_sg = (bus_dma_segment_t *)ccb->smpio.smp_response; 2741 response = (uint8_t *)(uintptr_t)rsp_sg[0].ds_addr; 2742 } else 2743 response = ccb->smpio.smp_response; 2744 } else { 2745 request = ccb->smpio.smp_request; 2746 response = ccb->smpio.smp_response; 2747 } 2748 2749 cm = mps_alloc_command(sc); 2750 if (cm == NULL) { 2751 mps_printf(sc, "%s: cannot allocate command\n", __func__); 2752 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2753 xpt_done(ccb); 2754 return; 2755 } 2756 2757 req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req; 2758 bzero(req, sizeof(*req)); 2759 req->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 2760 2761 /* Allow the chip to use any route to this SAS address. */ 2762 req->PhysicalPort = 0xff; 2763 2764 req->RequestDataLength = htole16(ccb->smpio.smp_request_len); 2765 req->SGLFlags = 2766 MPI2_SGLFLAGS_SYSTEM_ADDRESS_SPACE | MPI2_SGLFLAGS_SGL_TYPE_MPI; 2767 2768 mps_dprint(sc, MPS_INFO, "%s: sending SMP request to SAS " 2769 "address %#jx\n", __func__, (uintmax_t)sasaddr); 2770 2771 mpi_init_sge(cm, req, &req->SGL); 2772 2773 /* 2774 * Set up a uio to pass into mps_map_command(). This allows us to 2775 * do one map command, and one busdma call in there. 2776 */ 2777 cm->cm_uio.uio_iov = cm->cm_iovec; 2778 cm->cm_uio.uio_iovcnt = 2; 2779 cm->cm_uio.uio_segflg = UIO_SYSSPACE; 2780 2781 /* 2782 * The read/write flag isn't used by busdma, but set it just in 2783 * case. This isn't exactly accurate, either, since we're going in 2784 * both directions. 2785 */ 2786 cm->cm_uio.uio_rw = UIO_WRITE; 2787 2788 cm->cm_iovec[0].iov_base = request; 2789 cm->cm_iovec[0].iov_len = le16toh(req->RequestDataLength); 2790 cm->cm_iovec[1].iov_base = response; 2791 cm->cm_iovec[1].iov_len = ccb->smpio.smp_response_len; 2792 2793 cm->cm_uio.uio_resid = cm->cm_iovec[0].iov_len + 2794 cm->cm_iovec[1].iov_len; 2795 2796 /* 2797 * Trigger a warning message in mps_data_cb() for the user if we 2798 * wind up exceeding two S/G segments. The chip expects one 2799 * segment for the request and another for the response. 2800 */ 2801 cm->cm_max_segs = 2; 2802 2803 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 2804 cm->cm_complete = mpssas_smpio_complete; 2805 cm->cm_complete_data = ccb; 2806 2807 /* 2808 * Tell the mapping code that we're using a uio, and that this is 2809 * an SMP passthrough request. There is a little special-case 2810 * logic there (in mps_data_cb()) to handle the bidirectional 2811 * transfer. 2812 */ 2813 cm->cm_flags |= MPS_CM_FLAGS_USE_UIO | MPS_CM_FLAGS_SMP_PASS | 2814 MPS_CM_FLAGS_DATAIN | MPS_CM_FLAGS_DATAOUT; 2815 2816 /* The chip data format is little endian. */ 2817 req->SASAddress.High = htole32(sasaddr >> 32); 2818 req->SASAddress.Low = htole32(sasaddr); 2819 2820 /* 2821 * XXX Note that we don't have a timeout/abort mechanism here. 2822 * From the manual, it looks like task management requests only 2823 * work for SCSI IO and SATA passthrough requests. We may need to 2824 * have a mechanism to retry requests in the event of a chip reset 2825 * at least. Hopefully the chip will insure that any errors short 2826 * of that are relayed back to the driver. 2827 */ 2828 error = mps_map_command(sc, cm); 2829 if ((error != 0) && (error != EINPROGRESS)) { 2830 mps_printf(sc, "%s: error %d returned from mps_map_command()\n", 2831 __func__, error); 2832 goto bailout_error; 2833 } 2834 2835 return; 2836 2837 bailout_error: 2838 mps_free_command(sc, cm); 2839 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2840 xpt_done(ccb); 2841 return; 2842 2843 } 2844 2845 static void 2846 mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb) 2847 { 2848 struct mps_softc *sc; 2849 struct mpssas_target *targ; 2850 uint64_t sasaddr = 0; 2851 2852 sc = sassc->sc; 2853 2854 /* 2855 * Make sure the target exists. 2856 */ 2857 targ = &sassc->targets[ccb->ccb_h.target_id]; 2858 if (targ->handle == 0x0) { 2859 mps_printf(sc, "%s: target %d does not exist!\n", __func__, 2860 ccb->ccb_h.target_id); 2861 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2862 xpt_done(ccb); 2863 return; 2864 } 2865 2866 /* 2867 * If this device has an embedded SMP target, we'll talk to it 2868 * directly. 2869 * figure out what the expander's address is. 2870 */ 2871 if ((targ->devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) != 0) 2872 sasaddr = targ->sasaddr; 2873 2874 /* 2875 * If we don't have a SAS address for the expander yet, try 2876 * grabbing it from the page 0x83 information cached in the 2877 * transport layer for this target. LSI expanders report the 2878 * expander SAS address as the port-associated SAS address in 2879 * Inquiry VPD page 0x83. Maxim expanders don't report it in page 2880 * 0x83. 2881 * 2882 * XXX KDM disable this for now, but leave it commented out so that 2883 * it is obvious that this is another possible way to get the SAS 2884 * address. 2885 * 2886 * The parent handle method below is a little more reliable, and 2887 * the other benefit is that it works for devices other than SES 2888 * devices. So you can send a SMP request to a da(4) device and it 2889 * will get routed to the expander that device is attached to. 2890 * (Assuming the da(4) device doesn't contain an SMP target...) 2891 */ 2892 #if 0 2893 if (sasaddr == 0) 2894 sasaddr = xpt_path_sas_addr(ccb->ccb_h.path); 2895 #endif 2896 2897 /* 2898 * If we still don't have a SAS address for the expander, look for 2899 * the parent device of this device, which is probably the expander. 2900 */ 2901 if (sasaddr == 0) { 2902 #ifdef OLD_MPS_PROBE 2903 struct mpssas_target *parent_target; 2904 #endif 2905 2906 if (targ->parent_handle == 0x0) { 2907 mps_printf(sc, "%s: handle %d does not have a valid " 2908 "parent handle!\n", __func__, targ->handle); 2909 ccb->ccb_h.status = CAM_REQ_INVALID; 2910 goto bailout; 2911 } 2912 #ifdef OLD_MPS_PROBE 2913 parent_target = mpssas_find_target_by_handle(sassc, 0, 2914 targ->parent_handle); 2915 2916 if (parent_target == NULL) { 2917 mps_printf(sc, "%s: handle %d does not have a valid " 2918 "parent target!\n", __func__, targ->handle); 2919 ccb->ccb_h.status = CAM_REQ_INVALID; 2920 goto bailout; 2921 } 2922 2923 if ((parent_target->devinfo & 2924 MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { 2925 mps_printf(sc, "%s: handle %d parent %d does not " 2926 "have an SMP target!\n", __func__, 2927 targ->handle, parent_target->handle); 2928 ccb->ccb_h.status = CAM_REQ_INVALID; 2929 goto bailout; 2930 2931 } 2932 2933 sasaddr = parent_target->sasaddr; 2934 #else /* OLD_MPS_PROBE */ 2935 if ((targ->parent_devinfo & 2936 MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { 2937 mps_printf(sc, "%s: handle %d parent %d does not " 2938 "have an SMP target!\n", __func__, 2939 targ->handle, targ->parent_handle); 2940 ccb->ccb_h.status = CAM_REQ_INVALID; 2941 goto bailout; 2942 2943 } 2944 if (targ->parent_sasaddr == 0x0) { 2945 mps_printf(sc, "%s: handle %d parent handle %d does " 2946 "not have a valid SAS address!\n", 2947 __func__, targ->handle, targ->parent_handle); 2948 ccb->ccb_h.status = CAM_REQ_INVALID; 2949 goto bailout; 2950 } 2951 2952 sasaddr = targ->parent_sasaddr; 2953 #endif /* OLD_MPS_PROBE */ 2954 2955 } 2956 2957 if (sasaddr == 0) { 2958 mps_printf(sc, "%s: unable to find SAS address for handle %d\n", 2959 __func__, targ->handle); 2960 ccb->ccb_h.status = CAM_REQ_INVALID; 2961 goto bailout; 2962 } 2963 mpssas_send_smpcmd(sassc, ccb, sasaddr); 2964 2965 return; 2966 2967 bailout: 2968 xpt_done(ccb); 2969 2970 } 2971 #endif //__FreeBSD_version >= 900026 2972 2973 static void 2974 mpssas_action_resetdev(struct mpssas_softc *sassc, union ccb *ccb) 2975 { 2976 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 2977 struct mps_softc *sc; 2978 struct mps_command *tm; 2979 struct mpssas_target *targ; 2980 2981 mps_dprint(sassc->sc, MPS_TRACE, __func__); 2982 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); 2983 2984 sc = sassc->sc; 2985 tm = mps_alloc_command(sc); 2986 if (tm == NULL) { 2987 mps_printf(sc, "comand alloc failure in mpssas_action_resetdev\n"); 2988 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2989 xpt_done(ccb); 2990 return; 2991 } 2992 2993 targ = &sassc->targets[ccb->ccb_h.target_id]; 2994 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 2995 req->DevHandle = htole16(targ->handle); 2996 req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 2997 req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 2998 2999 /* SAS Hard Link Reset / SATA Link Reset */ 3000 req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; 3001 3002 tm->cm_data = NULL; 3003 tm->cm_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; 3004 tm->cm_complete = mpssas_resetdev_complete; 3005 tm->cm_complete_data = ccb; 3006 tm->cm_targ = targ; 3007 mps_map_command(sc, tm); 3008 } 3009 3010 static void 3011 mpssas_resetdev_complete(struct mps_softc *sc, struct mps_command *tm) 3012 { 3013 MPI2_SCSI_TASK_MANAGE_REPLY *resp; 3014 union ccb *ccb; 3015 3016 mps_dprint(sc, MPS_TRACE, __func__); 3017 mtx_assert(&sc->mps_mtx, MA_OWNED); 3018 3019 resp = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; 3020 ccb = tm->cm_complete_data; 3021 3022 /* 3023 * Currently there should be no way we can hit this case. It only 3024 * happens when we have a failure to allocate chain frames, and 3025 * task management commands don't have S/G lists. 3026 */ 3027 if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 3028 MPI2_SCSI_TASK_MANAGE_REQUEST *req; 3029 3030 req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; 3031 3032 mps_printf(sc, "%s: cm_flags = %#x for reset of handle %#04x! " 3033 "This should not happen!\n", __func__, tm->cm_flags, 3034 req->DevHandle); 3035 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 3036 goto bailout; 3037 } 3038 3039 printf("%s: IOCStatus = 0x%x ResponseCode = 0x%x\n", __func__, 3040 le16toh(resp->IOCStatus), le32toh(resp->ResponseCode)); 3041 3042 if (le32toh(resp->ResponseCode) == MPI2_SCSITASKMGMT_RSP_TM_COMPLETE) { 3043 ccb->ccb_h.status = CAM_REQ_CMP; 3044 mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, 3045 CAM_LUN_WILDCARD); 3046 } 3047 else 3048 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 3049 3050 bailout: 3051 3052 mpssas_free_tm(sc, tm); 3053 xpt_done(ccb); 3054 } 3055 3056 static void 3057 mpssas_poll(struct cam_sim *sim) 3058 { 3059 struct mpssas_softc *sassc; 3060 3061 sassc = cam_sim_softc(sim); 3062 3063 if (sassc->sc->mps_debug & MPS_TRACE) { 3064 /* frequent debug messages during a panic just slow 3065 * everything down too much. 3066 */ 3067 mps_printf(sassc->sc, "%s clearing MPS_TRACE\n", __func__); 3068 sassc->sc->mps_debug &= ~MPS_TRACE; 3069 } 3070 3071 mps_intr_locked(sassc->sc); 3072 } 3073 3074 static void 3075 mpssas_rescan_done(struct cam_periph *periph, union ccb *done_ccb) 3076 { 3077 struct mpssas_softc *sassc; 3078 char path_str[64]; 3079 3080 if (done_ccb == NULL) 3081 return; 3082 3083 sassc = (struct mpssas_softc *)done_ccb->ccb_h.ppriv_ptr1; 3084 3085 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); 3086 3087 xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str)); 3088 mps_dprint(sassc->sc, MPS_INFO, "Completing rescan for %s\n", path_str); 3089 3090 xpt_free_path(done_ccb->ccb_h.path); 3091 xpt_free_ccb(done_ccb); 3092 3093 #if __FreeBSD_version < 1000006 3094 /* 3095 * Before completing scan, get EEDP stuff for all of the existing 3096 * targets. 3097 */ 3098 mpssas_check_eedp(sassc); 3099 #endif 3100 3101 } 3102 3103 /* thread to handle bus rescans */ 3104 static void 3105 mpssas_scanner_thread(void *arg) 3106 { 3107 struct mpssas_softc *sassc; 3108 struct mps_softc *sc; 3109 union ccb *ccb; 3110 3111 sassc = (struct mpssas_softc *)arg; 3112 sc = sassc->sc; 3113 3114 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 3115 3116 mps_lock(sc); 3117 for (;;) { 3118 /* Sleep for 1 second and check the queue status*/ 3119 msleep(&sassc->ccb_scanq, &sc->mps_mtx, PRIBIO, 3120 "mps_scanq", 1 * hz); 3121 if (sassc->flags & MPSSAS_SHUTDOWN) { 3122 mps_dprint(sc, MPS_TRACE, "Scanner shutting down\n"); 3123 break; 3124 } 3125 next_work: 3126 // Get first work. 3127 ccb = (union ccb *)TAILQ_FIRST(&sassc->ccb_scanq); 3128 if (ccb == NULL) 3129 continue; 3130 // Got first work. 3131 TAILQ_REMOVE(&sassc->ccb_scanq, &ccb->ccb_h, sim_links.tqe); 3132 xpt_action(ccb); 3133 if (sassc->flags & MPSSAS_SHUTDOWN) { 3134 mps_dprint(sc, MPS_TRACE, "Scanner shutting down\n"); 3135 break; 3136 } 3137 goto next_work; 3138 } 3139 3140 sassc->flags &= ~MPSSAS_SCANTHREAD; 3141 wakeup(&sassc->flags); 3142 mps_unlock(sc); 3143 mps_dprint(sc, MPS_TRACE, "Scanner exiting\n"); 3144 mps_kproc_exit(0); 3145 } 3146 3147 /* 3148 * This function will send READ_CAP_16 to find out EEDP protection mode. 3149 * It will check inquiry data before sending READ_CAP_16. 3150 * Callback for READ_CAP_16 is "mpssas_read_cap_done". 3151 * This is insternal scsi command and we need to take care release of devq, if 3152 * CAM_DEV_QFRZN is set. Driver needs to release devq if it has frozen any. 3153 * xpt_release_devq is called from mpssas_read_cap_done. 3154 * 3155 * All other commands will be handled by periph layer and there it will 3156 * check for "CAM_DEV_QFRZN" and release of devq will be done. 3157 */ 3158 static void 3159 mpssas_rescan(struct mpssas_softc *sassc, union ccb *ccb) 3160 { 3161 char path_str[64]; 3162 3163 mps_dprint(sassc->sc, MPS_TRACE, "%s\n", __func__); 3164 3165 mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); 3166 3167 if (ccb == NULL) 3168 return; 3169 3170 xpt_path_string(ccb->ccb_h.path, path_str, sizeof(path_str)); 3171 mps_dprint(sassc->sc, MPS_INFO, "Queueing rescan for %s\n", path_str); 3172 3173 /* Prepare request */ 3174 ccb->ccb_h.ppriv_ptr1 = sassc; 3175 ccb->ccb_h.cbfcnp = mpssas_rescan_done; 3176 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, MPS_PRIORITY_XPT); 3177 TAILQ_INSERT_TAIL(&sassc->ccb_scanq, &ccb->ccb_h, sim_links.tqe); 3178 wakeup(&sassc->ccb_scanq); 3179 } 3180 3181 #if __FreeBSD_version >= 1000006 3182 static void 3183 mpssas_async(void *callback_arg, uint32_t code, struct cam_path *path, 3184 void *arg) 3185 { 3186 struct mps_softc *sc; 3187 3188 sc = (struct mps_softc *)callback_arg; 3189 3190 switch (code) { 3191 case AC_ADVINFO_CHANGED: { 3192 struct mpssas_target *target; 3193 struct mpssas_softc *sassc; 3194 struct scsi_read_capacity_data_long rcap_buf; 3195 struct ccb_dev_advinfo cdai; 3196 struct mpssas_lun *lun; 3197 lun_id_t lunid; 3198 int found_lun; 3199 uintptr_t buftype; 3200 3201 buftype = (uintptr_t)arg; 3202 3203 found_lun = 0; 3204 sassc = sc->sassc; 3205 3206 /* 3207 * We're only interested in read capacity data changes. 3208 */ 3209 if (buftype != CDAI_TYPE_RCAPLONG) 3210 break; 3211 3212 /* 3213 * We're only interested in devices that are attached to 3214 * this controller. 3215 */ 3216 if (xpt_path_path_id(path) != sassc->sim->path_id) 3217 break; 3218 3219 /* 3220 * We should have a handle for this, but check to make sure. 3221 */ 3222 target = &sassc->targets[xpt_path_target_id(path)]; 3223 if (target->handle == 0) 3224 break; 3225 3226 lunid = xpt_path_lun_id(path); 3227 3228 SLIST_FOREACH(lun, &target->luns, lun_link) { 3229 if (lun->lun_id == lunid) { 3230 found_lun = 1; 3231 break; 3232 } 3233 } 3234 3235 if (found_lun == 0) { 3236 lun = malloc(sizeof(struct mpssas_lun), M_MPT2, 3237 M_NOWAIT | M_ZERO); 3238 if (lun == NULL) { 3239 mps_dprint(sc, MPS_FAULT, "Unable to alloc " 3240 "LUN for EEDP support.\n"); 3241 break; 3242 } 3243 lun->lun_id = lunid; 3244 SLIST_INSERT_HEAD(&target->luns, lun, lun_link); 3245 } 3246 3247 bzero(&rcap_buf, sizeof(rcap_buf)); 3248 xpt_setup_ccb(&cdai.ccb_h, path, CAM_PRIORITY_NORMAL); 3249 cdai.ccb_h.func_code = XPT_DEV_ADVINFO; 3250 cdai.ccb_h.flags = CAM_DIR_IN; 3251 cdai.buftype = CDAI_TYPE_RCAPLONG; 3252 cdai.flags = 0; 3253 cdai.bufsiz = sizeof(rcap_buf); 3254 cdai.buf = (uint8_t *)&rcap_buf; 3255 xpt_action((union ccb *)&cdai); 3256 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0) 3257 cam_release_devq(cdai.ccb_h.path, 3258 0, 0, 0, FALSE); 3259 3260 if (((cdai.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 3261 && (rcap_buf.prot & SRC16_PROT_EN)) { 3262 lun->eedp_formatted = TRUE; 3263 lun->eedp_block_size = scsi_4btoul(rcap_buf.length); 3264 } else { 3265 lun->eedp_formatted = FALSE; 3266 lun->eedp_block_size = 0; 3267 } 3268 break; 3269 } 3270 default: 3271 break; 3272 } 3273 } 3274 #else /* __FreeBSD_version >= 1000006 */ 3275 3276 static void 3277 mpssas_check_eedp(struct mpssas_softc *sassc) 3278 { 3279 struct mps_softc *sc = sassc->sc; 3280 struct ccb_scsiio *csio; 3281 struct scsi_read_capacity_16 *scsi_cmd; 3282 struct scsi_read_capacity_eedp *rcap_buf; 3283 union ccb *ccb; 3284 path_id_t pathid = cam_sim_path(sassc->sim); 3285 target_id_t targetid; 3286 lun_id_t lunid; 3287 struct cam_periph *found_periph; 3288 struct mpssas_target *target; 3289 struct mpssas_lun *lun; 3290 uint8_t found_lun; 3291 struct ccb_getdev cgd; 3292 char path_str[64]; 3293 3294 /* 3295 * Issue a READ CAPACITY 16 command to each LUN of each target. This 3296 * info is used to determine if the LUN is formatted for EEDP support. 3297 */ 3298 for (targetid = 0; targetid < sc->facts->MaxTargets; targetid++) { 3299 target = &sassc->targets[targetid]; 3300 if (target->handle == 0x0) { 3301 continue; 3302 } 3303 3304 lunid = 0; 3305 do { 3306 ccb = xpt_alloc_ccb_nowait(); 3307 if (ccb == NULL) { 3308 mps_dprint(sc, MPS_FAULT, "Unable to alloc CCB " 3309 "for EEDP support.\n"); 3310 return; 3311 } 3312 3313 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 3314 pathid, targetid, lunid) != CAM_REQ_CMP) { 3315 mps_dprint(sc, MPS_FAULT, "Unable to create " 3316 "path for EEDP support\n"); 3317 xpt_free_ccb(ccb); 3318 return; 3319 } 3320 3321 /* 3322 * If a periph is returned, the LUN exists. Create an 3323 * entry in the target's LUN list. 3324 */ 3325 if ((found_periph = cam_periph_find(ccb->ccb_h.path, 3326 NULL)) != NULL) { 3327 /* 3328 * If LUN is already in list, don't create a new 3329 * one. 3330 */ 3331 found_lun = FALSE; 3332 SLIST_FOREACH(lun, &target->luns, lun_link) { 3333 if (lun->lun_id == lunid) { 3334 found_lun = TRUE; 3335 break; 3336 } 3337 } 3338 if (!found_lun) { 3339 lun = malloc(sizeof(struct mpssas_lun), 3340 M_MPT2, M_NOWAIT | M_ZERO); 3341 if (lun == NULL) { 3342 mps_dprint(sc, MPS_FAULT, 3343 "Unable to alloc LUN for " 3344 "EEDP support.\n"); 3345 xpt_free_path(ccb->ccb_h.path); 3346 xpt_free_ccb(ccb); 3347 return; 3348 } 3349 lun->lun_id = lunid; 3350 SLIST_INSERT_HEAD(&target->luns, lun, 3351 lun_link); 3352 } 3353 lunid++; 3354 /* Before Issuing READ CAPACITY 16, 3355 * check Device type. 3356 */ 3357 xpt_setup_ccb(&cgd.ccb_h, ccb->ccb_h.path, 3358 CAM_PRIORITY_NORMAL); 3359 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 3360 xpt_action((union ccb *)&cgd); 3361 3362 /* 3363 * If this flag is set in the inquiry data, 3364 * the device supports protection information, 3365 * and must support the 16 byte read 3366 * capacity command, otherwise continue without 3367 * sending read cap 16 3368 */ 3369 3370 xpt_path_string(ccb->ccb_h.path, path_str, 3371 sizeof(path_str)); 3372 3373 if ((cgd.inq_data.spc3_flags & 3374 SPC3_SID_PROTECT) == 0) { 3375 xpt_free_path(ccb->ccb_h.path); 3376 xpt_free_ccb(ccb); 3377 continue; 3378 } 3379 3380 mps_dprint(sc, MPS_INFO, 3381 "Sending read cap: path %s" 3382 " handle %d\n", path_str, target->handle ); 3383 3384 /* 3385 * Issue a READ CAPACITY 16 command for the LUN. 3386 * The mpssas_read_cap_done function will load 3387 * the read cap info into the LUN struct. 3388 */ 3389 rcap_buf = 3390 malloc(sizeof(struct scsi_read_capacity_eedp), 3391 M_MPT2, M_NOWAIT| M_ZERO); 3392 if (rcap_buf == NULL) { 3393 mps_dprint(sc, MPS_FAULT, "Unable to alloc read " 3394 "capacity buffer for EEDP support.\n"); 3395 xpt_free_path(ccb->ccb_h.path); 3396 xpt_free_ccb(ccb); 3397 return; 3398 } 3399 csio = &ccb->csio; 3400 csio->ccb_h.func_code = XPT_SCSI_IO; 3401 csio->ccb_h.flags = CAM_DIR_IN; 3402 csio->ccb_h.retry_count = 4; 3403 csio->ccb_h.cbfcnp = mpssas_read_cap_done; 3404 csio->ccb_h.timeout = 60000; 3405 csio->data_ptr = (uint8_t *)rcap_buf; 3406 csio->dxfer_len = sizeof(struct 3407 scsi_read_capacity_eedp); 3408 csio->sense_len = MPS_SENSE_LEN; 3409 csio->cdb_len = sizeof(*scsi_cmd); 3410 csio->tag_action = MSG_SIMPLE_Q_TAG; 3411 3412 scsi_cmd = (struct scsi_read_capacity_16 *) 3413 &csio->cdb_io.cdb_bytes; 3414 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3415 scsi_cmd->opcode = 0x9E; 3416 scsi_cmd->service_action = SRC16_SERVICE_ACTION; 3417 ((uint8_t *)scsi_cmd)[13] = sizeof(struct 3418 scsi_read_capacity_eedp); 3419 3420 /* 3421 * Set the path, target and lun IDs for the READ 3422 * CAPACITY request. 3423 */ 3424 ccb->ccb_h.path_id = 3425 xpt_path_path_id(ccb->ccb_h.path); 3426 ccb->ccb_h.target_id = 3427 xpt_path_target_id(ccb->ccb_h.path); 3428 ccb->ccb_h.target_lun = 3429 xpt_path_lun_id(ccb->ccb_h.path); 3430 3431 ccb->ccb_h.ppriv_ptr1 = sassc; 3432 xpt_action(ccb); 3433 } else { 3434 xpt_free_path(ccb->ccb_h.path); 3435 xpt_free_ccb(ccb); 3436 } 3437 } while (found_periph); 3438 } 3439 } 3440 3441 3442 static void 3443 mpssas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb) 3444 { 3445 struct mpssas_softc *sassc; 3446 struct mpssas_target *target; 3447 struct mpssas_lun *lun; 3448 struct scsi_read_capacity_eedp *rcap_buf; 3449 3450 if (done_ccb == NULL) 3451 return; 3452 3453 /* Driver need to release devq, it Scsi command is 3454 * generated by driver internally. 3455 * Currently there is a single place where driver 3456 * calls scsi command internally. In future if driver 3457 * calls more scsi command internally, it needs to release 3458 * devq internally, since those command will not go back to 3459 * cam_periph. 3460 */ 3461 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) ) { 3462 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 3463 xpt_release_devq(done_ccb->ccb_h.path, 3464 /*count*/ 1, /*run_queue*/TRUE); 3465 } 3466 3467 rcap_buf = (struct scsi_read_capacity_eedp *)done_ccb->csio.data_ptr; 3468 3469 /* 3470 * Get the LUN ID for the path and look it up in the LUN list for the 3471 * target. 3472 */ 3473 sassc = (struct mpssas_softc *)done_ccb->ccb_h.ppriv_ptr1; 3474 target = &sassc->targets[done_ccb->ccb_h.target_id]; 3475 SLIST_FOREACH(lun, &target->luns, lun_link) { 3476 if (lun->lun_id != done_ccb->ccb_h.target_lun) 3477 continue; 3478 3479 /* 3480 * Got the LUN in the target's LUN list. Fill it in 3481 * with EEDP info. If the READ CAP 16 command had some 3482 * SCSI error (common if command is not supported), mark 3483 * the lun as not supporting EEDP and set the block size 3484 * to 0. 3485 */ 3486 if (((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 3487 || (done_ccb->csio.scsi_status != SCSI_STATUS_OK)) { 3488 lun->eedp_formatted = FALSE; 3489 lun->eedp_block_size = 0; 3490 break; 3491 } 3492 3493 if (rcap_buf->protect & 0x01) { 3494 lun->eedp_formatted = TRUE; 3495 lun->eedp_block_size = scsi_4btoul(rcap_buf->length); 3496 } 3497 break; 3498 } 3499 3500 // Finished with this CCB and path. 3501 free(rcap_buf, M_MPT2); 3502 xpt_free_path(done_ccb->ccb_h.path); 3503 xpt_free_ccb(done_ccb); 3504 } 3505 #endif /* __FreeBSD_version >= 1000006 */ 3506 3507 int 3508 mpssas_startup(struct mps_softc *sc) 3509 { 3510 struct mpssas_softc *sassc; 3511 3512 /* 3513 * Send the port enable message and set the wait_for_port_enable flag. 3514 * This flag helps to keep the simq frozen until all discovery events 3515 * are processed. 3516 */ 3517 sassc = sc->sassc; 3518 mpssas_startup_increment(sassc); 3519 sc->wait_for_port_enable = 1; 3520 mpssas_send_portenable(sc); 3521 return (0); 3522 } 3523 3524 static int 3525 mpssas_send_portenable(struct mps_softc *sc) 3526 { 3527 MPI2_PORT_ENABLE_REQUEST *request; 3528 struct mps_command *cm; 3529 3530 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 3531 3532 if ((cm = mps_alloc_command(sc)) == NULL) 3533 return (EBUSY); 3534 request = (MPI2_PORT_ENABLE_REQUEST *)cm->cm_req; 3535 request->Function = MPI2_FUNCTION_PORT_ENABLE; 3536 request->MsgFlags = 0; 3537 request->VP_ID = 0; 3538 cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; 3539 cm->cm_complete = mpssas_portenable_complete; 3540 cm->cm_data = NULL; 3541 cm->cm_sge = NULL; 3542 3543 mps_map_command(sc, cm); 3544 mps_dprint(sc, MPS_TRACE, 3545 "mps_send_portenable finished cm %p req %p complete %p\n", 3546 cm, cm->cm_req, cm->cm_complete); 3547 return (0); 3548 } 3549 3550 static void 3551 mpssas_portenable_complete(struct mps_softc *sc, struct mps_command *cm) 3552 { 3553 MPI2_PORT_ENABLE_REPLY *reply; 3554 struct mpssas_softc *sassc; 3555 3556 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 3557 sassc = sc->sassc; 3558 3559 /* 3560 * Currently there should be no way we can hit this case. It only 3561 * happens when we have a failure to allocate chain frames, and 3562 * port enable commands don't have S/G lists. 3563 */ 3564 if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { 3565 mps_printf(sc, "%s: cm_flags = %#x for port enable! " 3566 "This should not happen!\n", __func__, cm->cm_flags); 3567 } 3568 3569 reply = (MPI2_PORT_ENABLE_REPLY *)cm->cm_reply; 3570 if (reply == NULL) 3571 mps_dprint(sc, MPS_FAULT, "Portenable NULL reply\n"); 3572 else if (le16toh(reply->IOCStatus & MPI2_IOCSTATUS_MASK) != 3573 MPI2_IOCSTATUS_SUCCESS) 3574 mps_dprint(sc, MPS_FAULT, "Portenable failed\n"); 3575 3576 mps_free_command(sc, cm); 3577 if (sc->mps_ich.ich_arg != NULL) { 3578 mps_dprint(sc, MPS_INFO, "disestablish config intrhook\n"); 3579 config_intrhook_disestablish(&sc->mps_ich); 3580 sc->mps_ich.ich_arg = NULL; 3581 } 3582 3583 /* 3584 * Get WarpDrive info after discovery is complete but before the scan 3585 * starts. At this point, all devices are ready to be exposed to the 3586 * OS. If devices should be hidden instead, take them out of the 3587 * 'targets' array before the scan. The devinfo for a disk will have 3588 * some info and a volume's will be 0. Use that to remove disks. 3589 */ 3590 mps_wd_config_pages(sc); 3591 3592 /* 3593 * Done waiting for port enable to complete. Decrement the refcount. 3594 * If refcount is 0, discovery is complete and a rescan of the bus can 3595 * take place. Since the simq was explicitly frozen before port 3596 * enable, it must be explicitly released here to keep the 3597 * freeze/release count in sync. 3598 */ 3599 sc->wait_for_port_enable = 0; 3600 sc->port_enable_complete = 1; 3601 wakeup(&sc->port_enable_complete); 3602 mpssas_startup_decrement(sassc); 3603 xpt_release_simq(sassc->sim, 1); 3604 } 3605 3606