/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2009 Yahoo! Inc. * Copyright (c) 2011-2015 LSI Corp. * Copyright (c) 2013-2015 Avago Technologies * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD * * $FreeBSD$ */ #include __FBSDID("$FreeBSD$"); /* Communications core for Avago Technologies (LSI) MPT2 */ /* TODO Move headers to mpsvar */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define MPSSAS_DISCOVERY_TIMEOUT 20 #define MPSSAS_MAX_DISCOVERY_TIMEOUTS 10 /* 200 seconds */ /* * static array to check SCSI OpCode for EEDP protection bits */ #define PRO_R MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP #define PRO_W MPI2_SCSIIO_EEDPFLAGS_INSERT_OP #define PRO_V MPI2_SCSIIO_EEDPFLAGS_INSERT_OP static uint8_t op_code_prot[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 0, 0, 0, PRO_W, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PRO_R, 0, PRO_W, 0, 0, 0, PRO_W, PRO_V, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; MALLOC_DEFINE(M_MPSSAS, "MPSSAS", "MPS SAS memory"); static void mpssas_remove_device(struct mps_softc *, struct mps_command *); static void mpssas_remove_complete(struct mps_softc *, struct mps_command *); static void mpssas_action(struct cam_sim *sim, union ccb *ccb); static void mpssas_poll(struct cam_sim *sim); static int mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm, struct mps_command *cm); static void mpssas_scsiio_timeout(void *data); static void mpssas_abort_complete(struct mps_softc *sc, struct mps_command *cm); static void mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm, union ccb *ccb); static void mpssas_action_scsiio(struct mpssas_softc *, union ccb *); static void mpssas_scsiio_complete(struct mps_softc *, struct mps_command *); static void mpssas_action_resetdev(struct mpssas_softc *, union ccb *); static void mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm); static void mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb, uint64_t sasaddr); static void mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb); static void mpssas_resetdev_complete(struct mps_softc *, struct mps_command *); static void mpssas_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg); static int mpssas_send_portenable(struct mps_softc *sc); static void mpssas_portenable_complete(struct mps_softc *sc, struct mps_command *cm); struct mpssas_target * mpssas_find_target_by_handle(struct mpssas_softc *sassc, int start, uint16_t handle) { struct mpssas_target *target; int i; for (i = start; i < sassc->maxtargets; i++) { target = &sassc->targets[i]; if (target->handle == handle) return (target); } return (NULL); } /* we need to freeze the simq during attach and diag reset, to avoid failing * commands before device handles have been found by discovery. Since * discovery involves reading config pages and possibly sending commands, * discovery actions may continue even after we receive the end of discovery * event, so refcount discovery actions instead of assuming we can unfreeze * the simq when we get the event. */ void mpssas_startup_increment(struct mpssas_softc *sassc) { MPS_FUNCTRACE(sassc->sc); if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) { if (sassc->startup_refcount++ == 0) { /* just starting, freeze the simq */ mps_dprint(sassc->sc, MPS_INIT, "%s freezing simq\n", __func__); xpt_hold_boot(); xpt_freeze_simq(sassc->sim, 1); } mps_dprint(sassc->sc, MPS_INIT, "%s refcount %u\n", __func__, sassc->startup_refcount); } } void mpssas_release_simq_reinit(struct mpssas_softc *sassc) { if (sassc->flags & MPSSAS_QUEUE_FROZEN) { sassc->flags &= ~MPSSAS_QUEUE_FROZEN; xpt_release_simq(sassc->sim, 1); mps_dprint(sassc->sc, MPS_INFO, "Unfreezing SIM queue\n"); } } void mpssas_startup_decrement(struct mpssas_softc *sassc) { MPS_FUNCTRACE(sassc->sc); if ((sassc->flags & MPSSAS_IN_STARTUP) != 0) { if (--sassc->startup_refcount == 0) { /* finished all discovery-related actions, release * the simq and rescan for the latest topology. */ mps_dprint(sassc->sc, MPS_INIT, "%s releasing simq\n", __func__); sassc->flags &= ~MPSSAS_IN_STARTUP; xpt_release_simq(sassc->sim, 1); xpt_release_boot(); } mps_dprint(sassc->sc, MPS_INIT, "%s refcount %u\n", __func__, sassc->startup_refcount); } } /* * The firmware requires us to stop sending commands when we're doing task * management. * XXX The logic for serializing the device has been made lazy and moved to * mpssas_prepare_for_tm(). */ struct mps_command * mpssas_alloc_tm(struct mps_softc *sc) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mps_command *tm; tm = mps_alloc_high_priority_command(sc); if (tm == NULL) return (NULL); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; return tm; } void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm) { int target_id = 0xFFFFFFFF; if (tm == NULL) return; /* * For TM's the devq is frozen for the device. Unfreeze it here and * free the resources used for freezing the devq. Must clear the * INRESET flag as well or scsi I/O will not work. */ if (tm->cm_targ != NULL) { tm->cm_targ->flags &= ~MPSSAS_TARGET_INRESET; target_id = tm->cm_targ->tid; } if (tm->cm_ccb) { mps_dprint(sc, MPS_INFO, "Unfreezing devq for target ID %d\n", target_id); xpt_release_devq(tm->cm_ccb->ccb_h.path, 1, TRUE); xpt_free_path(tm->cm_ccb->ccb_h.path); xpt_free_ccb(tm->cm_ccb); } mps_free_high_priority_command(sc, tm); } void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ) { struct mpssas_softc *sassc = sc->sassc; path_id_t pathid; target_id_t targetid; union ccb *ccb; MPS_FUNCTRACE(sc); pathid = cam_sim_path(sassc->sim); if (targ == NULL) targetid = CAM_TARGET_WILDCARD; else targetid = targ - sassc->targets; /* * Allocate a CCB and schedule a rescan. */ ccb = xpt_alloc_ccb_nowait(); if (ccb == NULL) { mps_dprint(sc, MPS_ERROR, "unable to alloc CCB for rescan\n"); return; } if (xpt_create_path(&ccb->ccb_h.path, NULL, pathid, targetid, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { mps_dprint(sc, MPS_ERROR, "unable to create path for rescan\n"); xpt_free_ccb(ccb); return; } if (targetid == CAM_TARGET_WILDCARD) ccb->ccb_h.func_code = XPT_SCAN_BUS; else ccb->ccb_h.func_code = XPT_SCAN_TGT; mps_dprint(sc, MPS_TRACE, "%s targetid %u\n", __func__, targetid); xpt_rescan(ccb); } static void mpssas_log_command(struct mps_command *cm, u_int level, const char *fmt, ...) { struct sbuf sb; va_list ap; char str[224]; char path_str[64]; if (cm == NULL) return; /* No need to be in here if debugging isn't enabled */ if ((cm->cm_sc->mps_debug & level) == 0) return; sbuf_new(&sb, str, sizeof(str), 0); va_start(ap, fmt); if (cm->cm_ccb != NULL) { xpt_path_string(cm->cm_ccb->csio.ccb_h.path, path_str, sizeof(path_str)); sbuf_cat(&sb, path_str); if (cm->cm_ccb->ccb_h.func_code == XPT_SCSI_IO) { scsi_command_string(&cm->cm_ccb->csio, &sb); sbuf_printf(&sb, "length %d ", cm->cm_ccb->csio.dxfer_len); } } else { sbuf_printf(&sb, "(noperiph:%s%d:%u:%u:%u): ", cam_sim_name(cm->cm_sc->sassc->sim), cam_sim_unit(cm->cm_sc->sassc->sim), cam_sim_bus(cm->cm_sc->sassc->sim), cm->cm_targ ? cm->cm_targ->tid : 0xFFFFFFFF, cm->cm_lun); } sbuf_printf(&sb, "SMID %u ", cm->cm_desc.Default.SMID); sbuf_vprintf(&sb, fmt, ap); sbuf_finish(&sb); mps_print_field(cm->cm_sc, "%s", sbuf_data(&sb)); va_end(ap); } static void mpssas_remove_volume(struct mps_softc *sc, struct mps_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; struct mpssas_target *targ; uint16_t handle; MPS_FUNCTRACE(sc); reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; handle = (uint16_t)(uintptr_t)tm->cm_complete_data; targ = tm->cm_targ; if (reply == NULL) { /* XXX retry the remove after the diag reset completes? */ mps_dprint(sc, MPS_FAULT, "%s NULL reply resetting device 0x%04x\n", __func__, handle); mpssas_free_tm(sc, tm); return; } if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) { mps_dprint(sc, MPS_ERROR, "IOCStatus = 0x%x while resetting device 0x%x\n", le16toh(reply->IOCStatus), handle); } mps_dprint(sc, MPS_XINFO, "Reset aborted %u commands\n", reply->TerminationCount); mps_free_reply(sc, tm->cm_reply_data); tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */ mps_dprint(sc, MPS_XINFO, "clearing target %u handle 0x%04x\n", targ->tid, handle); /* * Don't clear target if remove fails because things will get confusing. * Leave the devname and sasaddr intact so that we know to avoid reusing * this target id if possible, and so we can assign the same target id * to this device if it comes back in the future. */ if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) == MPI2_IOCSTATUS_SUCCESS) { targ = tm->cm_targ; targ->handle = 0x0; targ->encl_handle = 0x0; targ->encl_slot = 0x0; targ->exp_dev_handle = 0x0; targ->phy_num = 0x0; targ->linkrate = 0x0; targ->devinfo = 0x0; targ->flags = 0x0; } mpssas_free_tm(sc, tm); } /* * No Need to call "MPI2_SAS_OP_REMOVE_DEVICE" For Volume removal. * Otherwise Volume Delete is same as Bare Drive Removal. */ void mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mps_softc *sc; struct mps_command *tm; struct mpssas_target *targ = NULL; MPS_FUNCTRACE(sassc->sc); sc = sassc->sc; #ifdef WD_SUPPORT /* * If this is a WD controller, determine if the disk should be exposed * to the OS or not. If disk should be exposed, return from this * function without doing anything. */ if (sc->WD_available && (sc->WD_hide_expose == MPS_WD_EXPOSE_ALWAYS)) { return; } #endif //WD_SUPPORT targ = mpssas_find_target_by_handle(sassc, 0, handle); if (targ == NULL) { /* FIXME: what is the action? */ /* We don't know about this device? */ mps_dprint(sc, MPS_ERROR, "%s %d : invalid handle 0x%x \n", __func__,__LINE__, handle); return; } targ->flags |= MPSSAS_TARGET_INREMOVAL; tm = mpssas_alloc_tm(sc); if (tm == NULL) { mps_dprint(sc, MPS_ERROR, "%s: command alloc failure\n", __func__); return; } mpssas_rescan_target(sc, targ); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->DevHandle = targ->handle; req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; /* SAS Hard Link Reset / SATA Link Reset */ req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; tm->cm_targ = targ; tm->cm_data = NULL; tm->cm_complete = mpssas_remove_volume; tm->cm_complete_data = (void *)(uintptr_t)handle; mps_dprint(sc, MPS_INFO, "%s: Sending reset for target ID %d\n", __func__, targ->tid); mpssas_prepare_for_tm(sc, tm, targ, CAM_LUN_WILDCARD); mps_map_command(sc, tm); } /* * The MPT2 firmware performs debounce on the link to avoid transient link * errors and false removals. When it does decide that link has been lost * and a device need to go away, it expects that the host will perform a * target reset and then an op remove. The reset has the side-effect of * aborting any outstanding requests for the device, which is required for * the op-remove to succeed. It's not clear if the host should check for * the device coming back alive after the reset. */ void mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mps_softc *sc; struct mps_command *cm; struct mpssas_target *targ = NULL; MPS_FUNCTRACE(sassc->sc); sc = sassc->sc; targ = mpssas_find_target_by_handle(sassc, 0, handle); if (targ == NULL) { /* FIXME: what is the action? */ /* We don't know about this device? */ mps_dprint(sc, MPS_ERROR, "%s : invalid handle 0x%x \n", __func__, handle); return; } targ->flags |= MPSSAS_TARGET_INREMOVAL; cm = mpssas_alloc_tm(sc); if (cm == NULL) { mps_dprint(sc, MPS_ERROR, "%s: command alloc failure\n", __func__); return; } mpssas_rescan_target(sc, targ); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req; memset(req, 0, sizeof(*req)); req->DevHandle = htole16(targ->handle); req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; /* SAS Hard Link Reset / SATA Link Reset */ req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; cm->cm_targ = targ; cm->cm_data = NULL; cm->cm_complete = mpssas_remove_device; cm->cm_complete_data = (void *)(uintptr_t)handle; mps_dprint(sc, MPS_INFO, "%s: Sending reset for target ID %d\n", __func__, targ->tid); mpssas_prepare_for_tm(sc, cm, targ, CAM_LUN_WILDCARD); mps_map_command(sc, cm); } static void mpssas_remove_device(struct mps_softc *sc, struct mps_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SAS_IOUNIT_CONTROL_REQUEST *req; struct mpssas_target *targ; uint16_t handle; MPS_FUNCTRACE(sc); reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; handle = (uint16_t)(uintptr_t)tm->cm_complete_data; targ = tm->cm_targ; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_ERROR, "%s: cm_flags = %#x for remove of handle %#04x! " "This should not happen!\n", __func__, tm->cm_flags, handle); } if (reply == NULL) { /* XXX retry the remove after the diag reset completes? */ mps_dprint(sc, MPS_FAULT, "%s NULL reply resetting device 0x%04x\n", __func__, handle); mpssas_free_tm(sc, tm); return; } if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) { mps_dprint(sc, MPS_ERROR, "IOCStatus = 0x%x while resetting device 0x%x\n", le16toh(reply->IOCStatus), handle); } mps_dprint(sc, MPS_XINFO, "Reset aborted %u commands\n", le32toh(reply->TerminationCount)); mps_free_reply(sc, tm->cm_reply_data); tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */ /* Reuse the existing command */ req = (MPI2_SAS_IOUNIT_CONTROL_REQUEST *)tm->cm_req; memset(req, 0, sizeof(*req)); req->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; req->Operation = MPI2_SAS_OP_REMOVE_DEVICE; req->DevHandle = htole16(handle); tm->cm_data = NULL; tm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; tm->cm_complete = mpssas_remove_complete; tm->cm_complete_data = (void *)(uintptr_t)handle; /* * Wait to send the REMOVE_DEVICE until all the commands have cleared. * They should be aborted or time out and we'll kick thus off there * if so. */ if (TAILQ_FIRST(&targ->commands) == NULL) { mps_dprint(sc, MPS_INFO, "No pending commands: starting remove_device\n"); mps_map_command(sc, tm); targ->pending_remove_tm = NULL; } else { targ->pending_remove_tm = tm; } mps_dprint(sc, MPS_XINFO, "clearing target %u handle 0x%04x\n", targ->tid, handle); } static void mpssas_remove_complete(struct mps_softc *sc, struct mps_command *tm) { MPI2_SAS_IOUNIT_CONTROL_REPLY *reply; uint16_t handle; struct mpssas_target *targ; struct mpssas_lun *lun; MPS_FUNCTRACE(sc); reply = (MPI2_SAS_IOUNIT_CONTROL_REPLY *)tm->cm_reply; handle = (uint16_t)(uintptr_t)tm->cm_complete_data; targ = tm->cm_targ; /* * At this point, we should have no pending commands for the target. * The remove target has just completed. */ KASSERT(TAILQ_FIRST(&targ->commands) == NULL, ("%s: no commands should be pending\n", __func__)); /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_XINFO, "%s: cm_flags = %#x for remove of handle %#04x! " "This should not happen!\n", __func__, tm->cm_flags, handle); mpssas_free_tm(sc, tm); return; } if (reply == NULL) { /* most likely a chip reset */ mps_dprint(sc, MPS_FAULT, "%s NULL reply removing device 0x%04x\n", __func__, handle); mpssas_free_tm(sc, tm); return; } mps_dprint(sc, MPS_XINFO, "%s on handle 0x%04x, IOCStatus= 0x%x\n", __func__, handle, le16toh(reply->IOCStatus)); /* * Don't clear target if remove fails because things will get confusing. * Leave the devname and sasaddr intact so that we know to avoid reusing * this target id if possible, and so we can assign the same target id * to this device if it comes back in the future. */ if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) == MPI2_IOCSTATUS_SUCCESS) { targ->handle = 0x0; targ->encl_handle = 0x0; targ->encl_slot = 0x0; targ->exp_dev_handle = 0x0; targ->phy_num = 0x0; targ->linkrate = 0x0; targ->devinfo = 0x0; targ->flags = 0x0; while(!SLIST_EMPTY(&targ->luns)) { lun = SLIST_FIRST(&targ->luns); SLIST_REMOVE_HEAD(&targ->luns, lun_link); free(lun, M_MPT2); } } mpssas_free_tm(sc, tm); } static int mpssas_register_events(struct mps_softc *sc) { u32 events[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS]; bzero(events, 16); setbit(events, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE); setbit(events, MPI2_EVENT_SAS_DISCOVERY); setbit(events, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE); setbit(events, MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE); setbit(events, MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW); setbit(events, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST); setbit(events, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE); setbit(events, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST); setbit(events, MPI2_EVENT_IR_VOLUME); setbit(events, MPI2_EVENT_IR_PHYSICAL_DISK); setbit(events, MPI2_EVENT_IR_OPERATION_STATUS); setbit(events, MPI2_EVENT_LOG_ENTRY_ADDED); mps_register_events(sc, events, mpssas_evt_handler, NULL, &sc->sassc->mpssas_eh); return (0); } int mps_attach_sas(struct mps_softc *sc) { struct mpssas_softc *sassc; cam_status status; int unit, error = 0, reqs; MPS_FUNCTRACE(sc); mps_dprint(sc, MPS_INIT, "%s entered\n", __func__); sassc = malloc(sizeof(struct mpssas_softc), M_MPT2, M_WAITOK|M_ZERO); if(!sassc) { mps_dprint(sc, MPS_INIT|MPS_ERROR, "Cannot allocate SAS controller memory\n"); return (ENOMEM); } /* * XXX MaxTargets could change during a reinit. Since we don't * resize the targets[] array during such an event, cache the value * of MaxTargets here so that we don't get into trouble later. This * should move into the reinit logic. */ sassc->maxtargets = sc->facts->MaxTargets + sc->facts->MaxVolumes; sassc->targets = malloc(sizeof(struct mpssas_target) * sassc->maxtargets, M_MPT2, M_WAITOK|M_ZERO); if(!sassc->targets) { mps_dprint(sc, MPS_INIT|MPS_ERROR, "Cannot allocate SAS target memory\n"); free(sassc, M_MPT2); return (ENOMEM); } sc->sassc = sassc; sassc->sc = sc; reqs = sc->num_reqs - sc->num_prireqs - 1; if ((sassc->devq = cam_simq_alloc(reqs)) == NULL) { mps_dprint(sc, MPS_ERROR, "Cannot allocate SIMQ\n"); error = ENOMEM; goto out; } unit = device_get_unit(sc->mps_dev); sassc->sim = cam_sim_alloc(mpssas_action, mpssas_poll, "mps", sassc, unit, &sc->mps_mtx, reqs, reqs, sassc->devq); if (sassc->sim == NULL) { mps_dprint(sc, MPS_INIT|MPS_ERROR, "Cannot allocate SIM\n"); error = EINVAL; goto out; } TAILQ_INIT(&sassc->ev_queue); /* Initialize taskqueue for Event Handling */ TASK_INIT(&sassc->ev_task, 0, mpssas_firmware_event_work, sc); sassc->ev_tq = taskqueue_create("mps_taskq", M_NOWAIT | M_ZERO, taskqueue_thread_enqueue, &sassc->ev_tq); taskqueue_start_threads(&sassc->ev_tq, 1, PRIBIO, "%s taskq", device_get_nameunit(sc->mps_dev)); mps_lock(sc); /* * XXX There should be a bus for every port on the adapter, but since * we're just going to fake the topology for now, we'll pretend that * everything is just a target on a single bus. */ if ((error = xpt_bus_register(sassc->sim, sc->mps_dev, 0)) != 0) { mps_dprint(sc, MPS_INIT|MPS_ERROR, "Error %d registering SCSI bus\n", error); mps_unlock(sc); goto out; } /* * Assume that discovery events will start right away. * * Hold off boot until discovery is complete. */ sassc->flags |= MPSSAS_IN_STARTUP | MPSSAS_IN_DISCOVERY; sc->sassc->startup_refcount = 0; mpssas_startup_increment(sassc); callout_init(&sassc->discovery_callout, 1 /*mpsafe*/); /* * Register for async events so we can determine the EEDP * capabilities of devices. */ status = xpt_create_path(&sassc->path, /*periph*/NULL, cam_sim_path(sc->sassc->sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); if (status != CAM_REQ_CMP) { mps_dprint(sc, MPS_ERROR|MPS_INIT, "Error %#x creating sim path\n", status); sassc->path = NULL; } else { int event; event = AC_ADVINFO_CHANGED; status = xpt_register_async(event, mpssas_async, sc, sassc->path); if (status != CAM_REQ_CMP) { mps_dprint(sc, MPS_ERROR, "Error %#x registering async handler for " "AC_ADVINFO_CHANGED events\n", status); xpt_free_path(sassc->path); sassc->path = NULL; } } if (status != CAM_REQ_CMP) { /* * EEDP use is the exception, not the rule. * Warn the user, but do not fail to attach. */ mps_printf(sc, "EEDP capabilities disabled.\n"); } mps_unlock(sc); mpssas_register_events(sc); out: if (error) mps_detach_sas(sc); mps_dprint(sc, MPS_INIT, "%s exit error= %d\n", __func__, error); return (error); } int mps_detach_sas(struct mps_softc *sc) { struct mpssas_softc *sassc; struct mpssas_lun *lun, *lun_tmp; struct mpssas_target *targ; int i; MPS_FUNCTRACE(sc); if (sc->sassc == NULL) return (0); sassc = sc->sassc; mps_deregister_events(sc, sassc->mpssas_eh); /* * Drain and free the event handling taskqueue with the lock * unheld so that any parallel processing tasks drain properly * without deadlocking. */ if (sassc->ev_tq != NULL) taskqueue_free(sassc->ev_tq); /* Make sure CAM doesn't wedge if we had to bail out early. */ mps_lock(sc); while (sassc->startup_refcount != 0) mpssas_startup_decrement(sassc); /* Deregister our async handler */ if (sassc->path != NULL) { xpt_register_async(0, mpssas_async, sc, sassc->path); xpt_free_path(sassc->path); sassc->path = NULL; } if (sassc->flags & MPSSAS_IN_STARTUP) xpt_release_simq(sassc->sim, 1); if (sassc->sim != NULL) { xpt_bus_deregister(cam_sim_path(sassc->sim)); cam_sim_free(sassc->sim, FALSE); } mps_unlock(sc); if (sassc->devq != NULL) cam_simq_free(sassc->devq); for(i=0; i< sassc->maxtargets ;i++) { targ = &sassc->targets[i]; SLIST_FOREACH_SAFE(lun, &targ->luns, lun_link, lun_tmp) { free(lun, M_MPT2); } } free(sassc->targets, M_MPT2); free(sassc, M_MPT2); sc->sassc = NULL; return (0); } void mpssas_discovery_end(struct mpssas_softc *sassc) { struct mps_softc *sc = sassc->sc; MPS_FUNCTRACE(sc); if (sassc->flags & MPSSAS_DISCOVERY_TIMEOUT_PENDING) callout_stop(&sassc->discovery_callout); /* * After discovery has completed, check the mapping table for any * missing devices and update their missing counts. Only do this once * whenever the driver is initialized so that missing counts aren't * updated unnecessarily. Note that just because discovery has * completed doesn't mean that events have been processed yet. The * check_devices function is a callout timer that checks if ALL devices * are missing. If so, it will wait a little longer for events to * complete and keep resetting itself until some device in the mapping * table is not missing, meaning that event processing has started. */ if (sc->track_mapping_events) { mps_dprint(sc, MPS_XINFO | MPS_MAPPING, "Discovery has " "completed. Check for missing devices in the mapping " "table.\n"); callout_reset(&sc->device_check_callout, MPS_MISSING_CHECK_DELAY * hz, mps_mapping_check_devices, sc); } } static void mpssas_action(struct cam_sim *sim, union ccb *ccb) { struct mpssas_softc *sassc; sassc = cam_sim_softc(sim); MPS_FUNCTRACE(sassc->sc); mps_dprint(sassc->sc, MPS_TRACE, "ccb func_code 0x%x\n", ccb->ccb_h.func_code); mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); switch (ccb->ccb_h.func_code) { case XPT_PATH_INQ: { struct ccb_pathinq *cpi = &ccb->cpi; struct mps_softc *sc = sassc->sc; cpi->version_num = 1; cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; cpi->target_sprt = 0; cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED | PIM_NOSCAN; cpi->hba_eng_cnt = 0; cpi->max_target = sassc->maxtargets - 1; cpi->max_lun = 255; /* * initiator_id is set here to an ID outside the set of valid * target IDs (including volumes). */ cpi->initiator_id = sassc->maxtargets; strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strlcpy(cpi->hba_vid, "Avago Tech", HBA_IDLEN); strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); cpi->unit_number = cam_sim_unit(sim); cpi->bus_id = cam_sim_bus(sim); cpi->base_transfer_speed = 150000; cpi->transport = XPORT_SAS; cpi->transport_version = 0; cpi->protocol = PROTO_SCSI; cpi->protocol_version = SCSI_REV_SPC; cpi->maxio = sc->maxio; mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts; struct ccb_trans_settings_sas *sas; struct ccb_trans_settings_scsi *scsi; struct mpssas_target *targ; cts = &ccb->cts; sas = &cts->xport_specific.sas; scsi = &cts->proto_specific.scsi; KASSERT(cts->ccb_h.target_id < sassc->maxtargets, ("Target %d out of bounds in XPT_GET_TRANS_SETTINGS\n", cts->ccb_h.target_id)); targ = &sassc->targets[cts->ccb_h.target_id]; if (targ->handle == 0x0) { mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); break; } cts->protocol_version = SCSI_REV_SPC2; cts->transport = XPORT_SAS; cts->transport_version = 0; sas->valid = CTS_SAS_VALID_SPEED; switch (targ->linkrate) { case 0x08: sas->bitrate = 150000; break; case 0x09: sas->bitrate = 300000; break; case 0x0a: sas->bitrate = 600000; break; default: sas->valid = 0; } cts->protocol = PROTO_SCSI; scsi->valid = CTS_SCSI_VALID_TQ; scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); break; } case XPT_CALC_GEOMETRY: cam_calc_geometry(&ccb->ccg, /*extended*/1); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); break; case XPT_RESET_DEV: mps_dprint(sassc->sc, MPS_XINFO, "mpssas_action XPT_RESET_DEV\n"); mpssas_action_resetdev(sassc, ccb); return; case XPT_RESET_BUS: case XPT_ABORT: case XPT_TERM_IO: mps_dprint(sassc->sc, MPS_XINFO, "mpssas_action faking success for abort or reset\n"); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); break; case XPT_SCSI_IO: mpssas_action_scsiio(sassc, ccb); return; case XPT_SMP_IO: mpssas_action_smpio(sassc, ccb); return; default: mpssas_set_ccbstatus(ccb, CAM_FUNC_NOTAVAIL); break; } xpt_done(ccb); } static void mpssas_announce_reset(struct mps_softc *sc, uint32_t ac_code, target_id_t target_id, lun_id_t lun_id) { path_id_t path_id = cam_sim_path(sc->sassc->sim); struct cam_path *path; mps_dprint(sc, MPS_XINFO, "%s code %x target %d lun %jx\n", __func__, ac_code, target_id, (uintmax_t)lun_id); if (xpt_create_path(&path, NULL, path_id, target_id, lun_id) != CAM_REQ_CMP) { mps_dprint(sc, MPS_ERROR, "unable to create path for reset " "notification\n"); return; } xpt_async(ac_code, path, NULL); xpt_free_path(path); } static void mpssas_complete_all_commands(struct mps_softc *sc) { struct mps_command *cm; int i; int completed; MPS_FUNCTRACE(sc); mtx_assert(&sc->mps_mtx, MA_OWNED); /* complete all commands with a NULL reply */ for (i = 1; i < sc->num_reqs; i++) { cm = &sc->commands[i]; if (cm->cm_state == MPS_CM_STATE_FREE) continue; cm->cm_state = MPS_CM_STATE_BUSY; cm->cm_reply = NULL; completed = 0; if (cm->cm_flags & MPS_CM_FLAGS_SATA_ID_TIMEOUT) { MPASS(cm->cm_data); free(cm->cm_data, M_MPT2); cm->cm_data = NULL; } if (cm->cm_flags & MPS_CM_FLAGS_POLLED) cm->cm_flags |= MPS_CM_FLAGS_COMPLETE; if (cm->cm_complete != NULL) { mpssas_log_command(cm, MPS_RECOVERY, "completing cm %p state %x ccb %p for diag reset\n", cm, cm->cm_state, cm->cm_ccb); cm->cm_complete(sc, cm); completed = 1; } else if (cm->cm_flags & MPS_CM_FLAGS_WAKEUP) { mpssas_log_command(cm, MPS_RECOVERY, "waking up cm %p state %x ccb %p for diag reset\n", cm, cm->cm_state, cm->cm_ccb); wakeup(cm); completed = 1; } if ((completed == 0) && (cm->cm_state != MPS_CM_STATE_FREE)) { /* this should never happen, but if it does, log */ mpssas_log_command(cm, MPS_RECOVERY, "cm %p state %x flags 0x%x ccb %p during diag " "reset\n", cm, cm->cm_state, cm->cm_flags, cm->cm_ccb); } } sc->io_cmds_active = 0; } void mpssas_handle_reinit(struct mps_softc *sc) { int i; /* Go back into startup mode and freeze the simq, so that CAM * doesn't send any commands until after we've rediscovered all * targets and found the proper device handles for them. * * After the reset, portenable will trigger discovery, and after all * discovery-related activities have finished, the simq will be * released. */ mps_dprint(sc, MPS_INIT, "%s startup\n", __func__); sc->sassc->flags |= MPSSAS_IN_STARTUP; sc->sassc->flags |= MPSSAS_IN_DISCOVERY; mpssas_startup_increment(sc->sassc); /* notify CAM of a bus reset */ mpssas_announce_reset(sc, AC_BUS_RESET, CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); /* complete and cleanup after all outstanding commands */ mpssas_complete_all_commands(sc); mps_dprint(sc, MPS_INIT, "%s startup %u after command completion\n", __func__, sc->sassc->startup_refcount); /* zero all the target handles, since they may change after the * reset, and we have to rediscover all the targets and use the new * handles. */ for (i = 0; i < sc->sassc->maxtargets; i++) { if (sc->sassc->targets[i].outstanding != 0) mps_dprint(sc, MPS_INIT, "target %u outstanding %u\n", i, sc->sassc->targets[i].outstanding); sc->sassc->targets[i].handle = 0x0; sc->sassc->targets[i].exp_dev_handle = 0x0; sc->sassc->targets[i].outstanding = 0; sc->sassc->targets[i].flags = MPSSAS_TARGET_INDIAGRESET; } } static void mpssas_tm_timeout(void *data) { struct mps_command *tm = data; struct mps_softc *sc = tm->cm_sc; mtx_assert(&sc->mps_mtx, MA_OWNED); mpssas_log_command(tm, MPS_INFO|MPS_RECOVERY, "task mgmt %p timed out\n", tm); KASSERT(tm->cm_state == MPS_CM_STATE_INQUEUE, ("command not inqueue\n")); tm->cm_state = MPS_CM_STATE_BUSY; mps_reinit(sc); } static void mpssas_logical_unit_reset_complete(struct mps_softc *sc, struct mps_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; unsigned int cm_count = 0; struct mps_command *cm; struct mpssas_target *targ; callout_stop(&tm->cm_callout); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; targ = tm->cm_targ; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. * XXXSL So should it be an assertion? */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_RECOVERY|MPS_ERROR, "%s: cm_flags = %#x for LUN reset! " "This should not happen!\n", __func__, tm->cm_flags); mpssas_free_tm(sc, tm); return; } if (reply == NULL) { mps_dprint(sc, MPS_RECOVERY, "NULL reset reply for tm %p\n", tm); if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing " "reset, ignoring NULL LUN reset reply\n"); targ->tm = NULL; mpssas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on " "LUN reset attempt, resetting controller\n"); mps_reinit(sc); } return; } mps_dprint(sc, MPS_RECOVERY, "logical unit reset status 0x%x code 0x%x count %u\n", le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), le32toh(reply->TerminationCount)); /* * See if there are any outstanding commands for this LUN. * This could be made more efficient by using a per-LU data * structure of some sort. */ TAILQ_FOREACH(cm, &targ->commands, cm_link) { if (cm->cm_lun == tm->cm_lun) cm_count++; } if (cm_count == 0) { mps_dprint(sc, MPS_RECOVERY|MPS_INFO, "Finished recovery after LUN reset for target %u\n", targ->tid); mpssas_announce_reset(sc, AC_SENT_BDR, targ->tid, tm->cm_lun); /* * We've finished recovery for this logical unit. check and * see if some other logical unit has a timedout command * that needs to be processed. */ cm = TAILQ_FIRST(&targ->timedout_commands); if (cm) { mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "More commands to abort for target %u\n", targ->tid); mpssas_send_abort(sc, tm, cm); } else { targ->tm = NULL; mpssas_free_tm(sc, tm); } } else { /* * If we still have commands for this LUN, the reset * effectively failed, regardless of the status reported. * Escalate to a target reset. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "logical unit reset complete for target %u, but still " "have %u command(s), sending target reset\n", targ->tid, cm_count); mpssas_send_reset(sc, tm, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET); } } static void mpssas_target_reset_complete(struct mps_softc *sc, struct mps_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpssas_target *targ; callout_stop(&tm->cm_callout); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; targ = tm->cm_targ; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_ERROR,"%s: cm_flags = %#x for target reset! " "This should not happen!\n", __func__, tm->cm_flags); mpssas_free_tm(sc, tm); return; } if (reply == NULL) { mps_dprint(sc, MPS_RECOVERY, "NULL target reset reply for tm %pi TaskMID %u\n", tm, le16toh(req->TaskMID)); if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing " "reset, ignoring NULL target reset reply\n"); targ->tm = NULL; mpssas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on " "target reset attempt, resetting controller\n"); mps_reinit(sc); } return; } mps_dprint(sc, MPS_RECOVERY, "target reset status 0x%x code 0x%x count %u\n", le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), le32toh(reply->TerminationCount)); if (targ->outstanding == 0) { /* we've finished recovery for this target and all * of its logical units. */ mps_dprint(sc, MPS_RECOVERY|MPS_INFO, "Finished reset recovery for target %u\n", targ->tid); mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, CAM_LUN_WILDCARD); targ->tm = NULL; mpssas_free_tm(sc, tm); } else { /* * After a target reset, if this target still has * outstanding commands, the reset effectively failed, * regardless of the status reported. escalate. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "Target reset complete for target %u, but still have %u " "command(s), resetting controller\n", targ->tid, targ->outstanding); mps_reinit(sc); } } #define MPS_RESET_TIMEOUT 30 int mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm, uint8_t type) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpssas_target *target; int err; target = tm->cm_targ; if (target->handle == 0) { mps_dprint(sc, MPS_ERROR,"%s null devhandle for target_id %d\n", __func__, target->tid); return -1; } req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->DevHandle = htole16(target->handle); req->TaskType = type; if (type == MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET) { /* XXX Need to handle invalid LUNs */ MPS_SET_LUN(req->LUN, tm->cm_lun); tm->cm_targ->logical_unit_resets++; mps_dprint(sc, MPS_RECOVERY|MPS_INFO, "Sending logical unit reset to target %u lun %d\n", target->tid, tm->cm_lun); tm->cm_complete = mpssas_logical_unit_reset_complete; mpssas_prepare_for_tm(sc, tm, target, tm->cm_lun); } else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) { /* * Target reset method = * SAS Hard Link Reset / SATA Link Reset */ req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; tm->cm_targ->target_resets++; mps_dprint(sc, MPS_RECOVERY|MPS_INFO, "Sending target reset to target %u\n", target->tid); tm->cm_complete = mpssas_target_reset_complete; mpssas_prepare_for_tm(sc, tm, target, CAM_LUN_WILDCARD); } else { mps_dprint(sc, MPS_ERROR, "unexpected reset type 0x%x\n", type); return -1; } tm->cm_data = NULL; tm->cm_complete_data = (void *)tm; callout_reset(&tm->cm_callout, MPS_RESET_TIMEOUT * hz, mpssas_tm_timeout, tm); err = mps_map_command(sc, tm); if (err) mps_dprint(sc, MPS_ERROR|MPS_RECOVERY, "error %d sending reset type %u\n", err, type); return err; } static void mpssas_abort_complete(struct mps_softc *sc, struct mps_command *tm) { struct mps_command *cm; MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpssas_target *targ; callout_stop(&tm->cm_callout); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; reply = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; targ = tm->cm_targ; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_RECOVERY, "cm_flags = %#x for abort %p TaskMID %u!\n", tm->cm_flags, tm, le16toh(req->TaskMID)); mpssas_free_tm(sc, tm); return; } if (reply == NULL) { mps_dprint(sc, MPS_RECOVERY, "NULL abort reply for tm %p TaskMID %u\n", tm, le16toh(req->TaskMID)); if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing " "reset, ignoring NULL abort reply\n"); targ->tm = NULL; mpssas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on " "abort attempt, resetting controller\n"); mps_reinit(sc); } return; } mps_dprint(sc, MPS_RECOVERY, "abort TaskMID %u status 0x%x code 0x%x count %u\n", le16toh(req->TaskMID), le16toh(reply->IOCStatus), le32toh(reply->ResponseCode), le32toh(reply->TerminationCount)); cm = TAILQ_FIRST(&tm->cm_targ->timedout_commands); if (cm == NULL) { /* * If there are no more timedout commands, we're done with * error recovery for this target. */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "Finished abort recovery for target %u\n", targ->tid); targ->tm = NULL; mpssas_free_tm(sc, tm); } else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) { /* abort success, but we have more timedout commands to abort */ mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "Continuing abort recovery for target %u\n", targ->tid); mpssas_send_abort(sc, tm, cm); } else { /* we didn't get a command completion, so the abort * failed as far as we're concerned. escalate. */ mps_dprint(sc, MPS_RECOVERY, "Abort failed for target %u, sending logical unit reset\n", targ->tid); mpssas_send_reset(sc, tm, MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET); } } #define MPS_ABORT_TIMEOUT 5 static int mpssas_send_abort(struct mps_softc *sc, struct mps_command *tm, struct mps_command *cm) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpssas_target *targ; int err; targ = cm->cm_targ; if (targ->handle == 0) { mps_dprint(sc, MPS_ERROR|MPS_RECOVERY, "%s null devhandle for target_id %d\n", __func__, cm->cm_ccb->ccb_h.target_id); return -1; } mpssas_log_command(cm, MPS_RECOVERY|MPS_INFO, "Aborting command %p\n", cm); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->DevHandle = htole16(targ->handle); req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK; /* XXX Need to handle invalid LUNs */ MPS_SET_LUN(req->LUN, cm->cm_ccb->ccb_h.target_lun); req->TaskMID = htole16(cm->cm_desc.Default.SMID); tm->cm_data = NULL; tm->cm_complete = mpssas_abort_complete; tm->cm_complete_data = (void *)tm; tm->cm_targ = cm->cm_targ; tm->cm_lun = cm->cm_lun; callout_reset(&tm->cm_callout, MPS_ABORT_TIMEOUT * hz, mpssas_tm_timeout, tm); targ->aborts++; mpssas_prepare_for_tm(sc, tm, targ, tm->cm_lun); err = mps_map_command(sc, tm); if (err) mps_dprint(sc, MPS_ERROR|MPS_RECOVERY, "error %d sending abort for cm %p SMID %u\n", err, cm, req->TaskMID); return err; } static void mpssas_scsiio_timeout(void *data) { sbintime_t elapsed, now; union ccb *ccb; struct mps_softc *sc; struct mps_command *cm; struct mpssas_target *targ; cm = (struct mps_command *)data; sc = cm->cm_sc; ccb = cm->cm_ccb; now = sbinuptime(); MPS_FUNCTRACE(sc); mtx_assert(&sc->mps_mtx, MA_OWNED); mps_dprint(sc, MPS_XINFO|MPS_RECOVERY, "Timeout checking cm %p\n", sc); /* * Run the interrupt handler to make sure it's not pending. This * isn't perfect because the command could have already completed * and been re-used, though this is unlikely. */ mps_intr_locked(sc); if (cm->cm_flags & MPS_CM_FLAGS_ON_RECOVERY) { mpssas_log_command(cm, MPS_XINFO, "SCSI command %p almost timed out\n", cm); return; } if (cm->cm_ccb == NULL) { mps_dprint(sc, MPS_ERROR, "command timeout with NULL ccb\n"); return; } targ = cm->cm_targ; targ->timeouts++; elapsed = now - ccb->ccb_h.qos.sim_data; mpssas_log_command(cm, MPS_INFO|MPS_RECOVERY, "Command timeout on target %u(0x%04x) %d set, %d.%d elapsed\n", targ->tid, targ->handle, ccb->ccb_h.timeout, sbintime_getsec(elapsed), elapsed & 0xffffffff); /* XXX first, check the firmware state, to see if it's still * operational. if not, do a diag reset. */ mpssas_set_ccbstatus(cm->cm_ccb, CAM_CMD_TIMEOUT); cm->cm_flags |= MPS_CM_FLAGS_ON_RECOVERY | MPS_CM_FLAGS_TIMEDOUT; TAILQ_INSERT_TAIL(&targ->timedout_commands, cm, cm_recovery); if (targ->tm != NULL) { /* target already in recovery, just queue up another * timedout command to be processed later. */ mps_dprint(sc, MPS_RECOVERY, "queued timedout cm %p for processing by tm %p\n", cm, targ->tm); } else if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) { mps_dprint(sc, MPS_RECOVERY|MPS_INFO, "Sending abort to target %u for SMID %d\n", targ->tid, cm->cm_desc.Default.SMID); mps_dprint(sc, MPS_RECOVERY, "timedout cm %p allocated tm %p\n", cm, targ->tm); /* start recovery by aborting the first timedout command */ mpssas_send_abort(sc, targ->tm, cm); } else { /* XXX queue this target up for recovery once a TM becomes * available. The firmware only has a limited number of * HighPriority credits for the high priority requests used * for task management, and we ran out. * * Isilon: don't worry about this for now, since we have * more credits than disks in an enclosure, and limit * ourselves to one TM per target for recovery. */ mps_dprint(sc, MPS_ERROR|MPS_RECOVERY, "timedout cm %p failed to allocate a tm\n", cm); } } static void mpssas_action_scsiio(struct mpssas_softc *sassc, union ccb *ccb) { MPI2_SCSI_IO_REQUEST *req; struct ccb_scsiio *csio; struct mps_softc *sc; struct mpssas_target *targ; struct mpssas_lun *lun; struct mps_command *cm; uint8_t i, lba_byte, *ref_tag_addr; uint16_t eedp_flags; uint32_t mpi_control; sc = sassc->sc; MPS_FUNCTRACE(sc); mtx_assert(&sc->mps_mtx, MA_OWNED); csio = &ccb->csio; KASSERT(csio->ccb_h.target_id < sassc->maxtargets, ("Target %d out of bounds in XPT_SCSI_IO\n", csio->ccb_h.target_id)); targ = &sassc->targets[csio->ccb_h.target_id]; mps_dprint(sc, MPS_TRACE, "ccb %p target flag %x\n", ccb, targ->flags); if (targ->handle == 0x0) { mps_dprint(sc, MPS_ERROR, "%s NULL handle for target %u\n", __func__, csio->ccb_h.target_id); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); xpt_done(ccb); return; } if (targ->flags & MPS_TARGET_FLAGS_RAID_COMPONENT) { mps_dprint(sc, MPS_ERROR, "%s Raid component no SCSI IO " "supported %u\n", __func__, csio->ccb_h.target_id); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); xpt_done(ccb); return; } /* * Sometimes, it is possible to get a command that is not "In * Progress" and was actually aborted by the upper layer. Check for * this here and complete the command without error. */ if (mpssas_get_ccbstatus(ccb) != CAM_REQ_INPROG) { mps_dprint(sc, MPS_TRACE, "%s Command is not in progress for " "target %u\n", __func__, csio->ccb_h.target_id); xpt_done(ccb); return; } /* * If devinfo is 0 this will be a volume. In that case don't tell CAM * that the volume has timed out. We want volumes to be enumerated * until they are deleted/removed, not just failed. In either event, * we're removing the target due to a firmware event telling us * the device is now gone (as opposed to some transient event). Since * we're opting to remove failed devices from the OS's view, we need * to propagate that status up the stack. */ if (targ->flags & MPSSAS_TARGET_INREMOVAL) { if (targ->devinfo == 0) mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); else mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); xpt_done(ccb); return; } if ((sc->mps_flags & MPS_FLAGS_SHUTDOWN) != 0) { mps_dprint(sc, MPS_INFO, "%s shutting down\n", __func__); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); xpt_done(ccb); return; } /* * If target has a reset in progress, freeze the devq and return. The * devq will be released when the TM reset is finished. */ if (targ->flags & MPSSAS_TARGET_INRESET) { ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN; mps_dprint(sc, MPS_INFO, "%s: Freezing devq for target ID %d\n", __func__, targ->tid); xpt_freeze_devq(ccb->ccb_h.path, 1); xpt_done(ccb); return; } cm = mps_alloc_command(sc); if (cm == NULL || (sc->mps_flags & MPS_FLAGS_DIAGRESET)) { if (cm != NULL) { mps_free_command(sc, cm); } if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) { xpt_freeze_simq(sassc->sim, 1); sassc->flags |= MPSSAS_QUEUE_FROZEN; } ccb->ccb_h.status &= ~CAM_SIM_QUEUED; ccb->ccb_h.status |= CAM_REQUEUE_REQ; xpt_done(ccb); return; } req = (MPI2_SCSI_IO_REQUEST *)cm->cm_req; bzero(req, sizeof(*req)); req->DevHandle = htole16(targ->handle); req->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; req->MsgFlags = 0; req->SenseBufferLowAddress = htole32(cm->cm_sense_busaddr); req->SenseBufferLength = MPS_SENSE_LEN; req->SGLFlags = 0; req->ChainOffset = 0; req->SGLOffset0 = 24; /* 32bit word offset to the SGL */ req->SGLOffset1= 0; req->SGLOffset2= 0; req->SGLOffset3= 0; req->SkipCount = 0; req->DataLength = htole32(csio->dxfer_len); req->BidirectionalDataLength = 0; req->IoFlags = htole16(csio->cdb_len); req->EEDPFlags = 0; /* Note: BiDirectional transfers are not supported */ switch (csio->ccb_h.flags & CAM_DIR_MASK) { case CAM_DIR_IN: mpi_control = MPI2_SCSIIO_CONTROL_READ; cm->cm_flags |= MPS_CM_FLAGS_DATAIN; break; case CAM_DIR_OUT: mpi_control = MPI2_SCSIIO_CONTROL_WRITE; cm->cm_flags |= MPS_CM_FLAGS_DATAOUT; break; case CAM_DIR_NONE: default: mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER; break; } if (csio->cdb_len == 32) mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT; /* * It looks like the hardware doesn't require an explicit tag * number for each transaction. SAM Task Management not supported * at the moment. */ switch (csio->tag_action) { case MSG_HEAD_OF_Q_TAG: mpi_control |= MPI2_SCSIIO_CONTROL_HEADOFQ; break; case MSG_ORDERED_Q_TAG: mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ; break; case MSG_ACA_TASK: mpi_control |= MPI2_SCSIIO_CONTROL_ACAQ; break; case CAM_TAG_ACTION_NONE: case MSG_SIMPLE_Q_TAG: default: mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; break; } mpi_control |= sc->mapping_table[csio->ccb_h.target_id].TLR_bits; req->Control = htole32(mpi_control); if (MPS_SET_LUN(req->LUN, csio->ccb_h.target_lun) != 0) { mps_free_command(sc, cm); mpssas_set_ccbstatus(ccb, CAM_LUN_INVALID); xpt_done(ccb); return; } if (csio->ccb_h.flags & CAM_CDB_POINTER) bcopy(csio->cdb_io.cdb_ptr, &req->CDB.CDB32[0], csio->cdb_len); else bcopy(csio->cdb_io.cdb_bytes, &req->CDB.CDB32[0],csio->cdb_len); req->IoFlags = htole16(csio->cdb_len); /* * Check if EEDP is supported and enabled. If it is then check if the * SCSI opcode could be using EEDP. If so, make sure the LUN exists and * is formatted for EEDP support. If all of this is true, set CDB up * for EEDP transfer. */ eedp_flags = op_code_prot[req->CDB.CDB32[0]]; if (sc->eedp_enabled && eedp_flags) { SLIST_FOREACH(lun, &targ->luns, lun_link) { if (lun->lun_id == csio->ccb_h.target_lun) { break; } } if ((lun != NULL) && (lun->eedp_formatted)) { req->EEDPBlockSize = htole16(lun->eedp_block_size); eedp_flags |= (MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG | MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG | MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD); req->EEDPFlags = htole16(eedp_flags); /* * If CDB less than 32, fill in Primary Ref Tag with * low 4 bytes of LBA. If CDB is 32, tag stuff is * already there. Also, set protection bit. FreeBSD * currently does not support CDBs bigger than 16, but * the code doesn't hurt, and will be here for the * future. */ if (csio->cdb_len != 32) { lba_byte = (csio->cdb_len == 16) ? 6 : 2; ref_tag_addr = (uint8_t *)&req->CDB.EEDP32. PrimaryReferenceTag; for (i = 0; i < 4; i++) { *ref_tag_addr = req->CDB.CDB32[lba_byte + i]; ref_tag_addr++; } req->CDB.EEDP32.PrimaryReferenceTag = htole32(req->CDB.EEDP32.PrimaryReferenceTag); req->CDB.EEDP32.PrimaryApplicationTagMask = 0xFFFF; req->CDB.CDB32[1] = (req->CDB.CDB32[1] & 0x1F) | 0x20; } else { eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_APPTAG; req->EEDPFlags = htole16(eedp_flags); req->CDB.CDB32[10] = (req->CDB.CDB32[10] & 0x1F) | 0x20; } } } cm->cm_length = csio->dxfer_len; if (cm->cm_length != 0) { cm->cm_data = ccb; cm->cm_flags |= MPS_CM_FLAGS_USE_CCB; } else { cm->cm_data = NULL; } cm->cm_sge = &req->SGL; cm->cm_sglsize = (32 - 24) * 4; cm->cm_desc.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; cm->cm_desc.SCSIIO.DevHandle = htole16(targ->handle); cm->cm_complete = mpssas_scsiio_complete; cm->cm_complete_data = ccb; cm->cm_targ = targ; cm->cm_lun = csio->ccb_h.target_lun; cm->cm_ccb = ccb; /* * If HBA is a WD and the command is not for a retry, try to build a * direct I/O message. If failed, or the command is for a retry, send * the I/O to the IR volume itself. */ if (sc->WD_valid_config) { if (ccb->ccb_h.sim_priv.entries[0].field == MPS_WD_RETRY) { mpssas_direct_drive_io(sassc, cm, ccb); } else { mpssas_set_ccbstatus(ccb, CAM_REQ_INPROG); } } #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) if (csio->bio != NULL) biotrack(csio->bio, __func__); #endif csio->ccb_h.qos.sim_data = sbinuptime(); callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0, mpssas_scsiio_timeout, cm, 0); targ->issued++; targ->outstanding++; TAILQ_INSERT_TAIL(&targ->commands, cm, cm_link); ccb->ccb_h.status |= CAM_SIM_QUEUED; mpssas_log_command(cm, MPS_XINFO, "%s cm %p ccb %p outstanding %u\n", __func__, cm, ccb, targ->outstanding); mps_map_command(sc, cm); return; } /** * mps_sc_failed_io_info - translated non-succesfull SCSI_IO request */ static void mps_sc_failed_io_info(struct mps_softc *sc, struct ccb_scsiio *csio, Mpi2SCSIIOReply_t *mpi_reply) { u32 response_info; u8 *response_bytes; u16 ioc_status = le16toh(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; u8 scsi_state = mpi_reply->SCSIState; u8 scsi_status = mpi_reply->SCSIStatus; u32 log_info = le32toh(mpi_reply->IOCLogInfo); const char *desc_ioc_state, *desc_scsi_status; if (log_info == 0x31170000) return; desc_ioc_state = mps_describe_table(mps_iocstatus_string, ioc_status); desc_scsi_status = mps_describe_table(mps_scsi_status_string, scsi_status); mps_dprint(sc, MPS_XINFO, "\thandle(0x%04x), ioc_status(%s)(0x%04x)\n", le16toh(mpi_reply->DevHandle), desc_ioc_state, ioc_status); /* *We can add more detail about underflow data here * TO-DO */ mps_dprint(sc, MPS_XINFO, "\tscsi_status(%s)(0x%02x), " "scsi_state %b\n", desc_scsi_status, scsi_status, scsi_state, "\20" "\1AutosenseValid" "\2AutosenseFailed" "\3NoScsiStatus" "\4Terminated" "\5Response InfoValid"); if (sc->mps_debug & MPS_XINFO && scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) { mps_dprint(sc, MPS_XINFO, "-> Sense Buffer Data : Start :\n"); scsi_sense_print(csio); mps_dprint(sc, MPS_XINFO, "-> Sense Buffer Data : End :\n"); } if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) { response_info = le32toh(mpi_reply->ResponseInfo); response_bytes = (u8 *)&response_info; mps_dprint(sc, MPS_XINFO, "response code(0x%1x): %s\n", response_bytes[0], mps_describe_table(mps_scsi_taskmgmt_string, response_bytes[0])); } } static void mpssas_scsiio_complete(struct mps_softc *sc, struct mps_command *cm) { MPI2_SCSI_IO_REPLY *rep; union ccb *ccb; struct ccb_scsiio *csio; struct mpssas_softc *sassc; struct scsi_vpd_supported_page_list *vpd_list = NULL; u8 *TLR_bits, TLR_on; int dir = 0, i; u16 alloc_len; struct mpssas_target *target; target_id_t target_id; MPS_FUNCTRACE(sc); mps_dprint(sc, MPS_TRACE, "cm %p SMID %u ccb %p reply %p outstanding %u\n", cm, cm->cm_desc.Default.SMID, cm->cm_ccb, cm->cm_reply, cm->cm_targ->outstanding); callout_stop(&cm->cm_callout); mtx_assert(&sc->mps_mtx, MA_OWNED); sassc = sc->sassc; ccb = cm->cm_complete_data; csio = &ccb->csio; target_id = csio->ccb_h.target_id; rep = (MPI2_SCSI_IO_REPLY *)cm->cm_reply; /* * XXX KDM if the chain allocation fails, does it matter if we do * the sync and unload here? It is simpler to do it in every case, * assuming it doesn't cause problems. */ if (cm->cm_data != NULL) { if (cm->cm_flags & MPS_CM_FLAGS_DATAIN) dir = BUS_DMASYNC_POSTREAD; else if (cm->cm_flags & MPS_CM_FLAGS_DATAOUT) dir = BUS_DMASYNC_POSTWRITE; bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, dir); bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap); } cm->cm_targ->completed++; cm->cm_targ->outstanding--; TAILQ_REMOVE(&cm->cm_targ->commands, cm, cm_link); ccb->ccb_h.status &= ~(CAM_STATUS_MASK | CAM_SIM_QUEUED); #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) if (ccb->csio.bio != NULL) biotrack(ccb->csio.bio, __func__); #endif if (cm->cm_flags & MPS_CM_FLAGS_ON_RECOVERY) { TAILQ_REMOVE(&cm->cm_targ->timedout_commands, cm, cm_recovery); KASSERT(cm->cm_state == MPS_CM_STATE_BUSY, ("Not busy for CM_FLAGS_TIMEDOUT: %d\n", cm->cm_state)); cm->cm_flags &= ~MPS_CM_FLAGS_ON_RECOVERY; if (cm->cm_reply != NULL) mpssas_log_command(cm, MPS_RECOVERY, "completed timedout cm %p ccb %p during recovery " "ioc %x scsi %x state %x xfer %u\n", cm, cm->cm_ccb, le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); else mpssas_log_command(cm, MPS_RECOVERY, "completed timedout cm %p ccb %p during recovery\n", cm, cm->cm_ccb); } else if (cm->cm_targ->tm != NULL) { if (cm->cm_reply != NULL) mpssas_log_command(cm, MPS_RECOVERY, "completed cm %p ccb %p during recovery " "ioc %x scsi %x state %x xfer %u\n", cm, cm->cm_ccb, le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); else mpssas_log_command(cm, MPS_RECOVERY, "completed cm %p ccb %p during recovery\n", cm, cm->cm_ccb); } else if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) { mpssas_log_command(cm, MPS_RECOVERY, "reset completed cm %p ccb %p\n", cm, cm->cm_ccb); } if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { /* * We ran into an error after we tried to map the command, * so we're getting a callback without queueing the command * to the hardware. So we set the status here, and it will * be retained below. We'll go through the "fast path", * because there can be no reply when we haven't actually * gone out to the hardware. */ mpssas_set_ccbstatus(ccb, CAM_REQUEUE_REQ); /* * Currently the only error included in the mask is * MPS_CM_FLAGS_CHAIN_FAILED, which means we're out of * chain frames. We need to freeze the queue until we get * a command that completed without this error, which will * hopefully have some chain frames attached that we can * use. If we wanted to get smarter about it, we would * only unfreeze the queue in this condition when we're * sure that we're getting some chain frames back. That's * probably unnecessary. */ if ((sassc->flags & MPSSAS_QUEUE_FROZEN) == 0) { xpt_freeze_simq(sassc->sim, 1); sassc->flags |= MPSSAS_QUEUE_FROZEN; mps_dprint(sc, MPS_XINFO, "Error sending command, " "freezing SIM queue\n"); } } /* * If this is a Start Stop Unit command and it was issued by the driver * during shutdown, decrement the refcount to account for all of the * commands that were sent. All SSU commands should be completed before * shutdown completes, meaning SSU_refcount will be 0 after SSU_started * is TRUE. */ if (sc->SSU_started && (csio->cdb_io.cdb_bytes[0] == START_STOP_UNIT)) { mps_dprint(sc, MPS_INFO, "Decrementing SSU count.\n"); sc->SSU_refcount--; } /* Take the fast path to completion */ if (cm->cm_reply == NULL) { if (mpssas_get_ccbstatus(ccb) == CAM_REQ_INPROG) { if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) mpssas_set_ccbstatus(ccb, CAM_SCSI_BUS_RESET); else { mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); ccb->csio.scsi_status = SCSI_STATUS_OK; } if (sassc->flags & MPSSAS_QUEUE_FROZEN) { ccb->ccb_h.status |= CAM_RELEASE_SIMQ; sassc->flags &= ~MPSSAS_QUEUE_FROZEN; mps_dprint(sc, MPS_XINFO, "Unfreezing SIM queue\n"); } } /* * There are two scenarios where the status won't be * CAM_REQ_CMP. The first is if MPS_CM_FLAGS_ERROR_MASK is * set, the second is in the MPS_FLAGS_DIAGRESET above. */ if (mpssas_get_ccbstatus(ccb) != CAM_REQ_CMP) { /* * Freeze the dev queue so that commands are * executed in the correct order after error * recovery. */ ccb->ccb_h.status |= CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1); } mps_free_command(sc, cm); xpt_done(ccb); return; } mpssas_log_command(cm, MPS_XINFO, "ioc %x scsi %x state %x xfer %u\n", le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); /* * If this is a Direct Drive I/O, reissue the I/O to the original IR * Volume if an error occurred (normal I/O retry). Use the original * CCB, but set a flag that this will be a retry so that it's sent to * the original volume. Free the command but reuse the CCB. */ if (cm->cm_flags & MPS_CM_FLAGS_DD_IO) { mps_free_command(sc, cm); ccb->ccb_h.sim_priv.entries[0].field = MPS_WD_RETRY; mpssas_action_scsiio(sassc, ccb); return; } else ccb->ccb_h.sim_priv.entries[0].field = 0; switch (le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) { case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN: csio->resid = cm->cm_length - le32toh(rep->TransferCount); /* FALLTHROUGH */ case MPI2_IOCSTATUS_SUCCESS: case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR: if ((le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK) == MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR) mpssas_log_command(cm, MPS_XINFO, "recovered error\n"); /* Completion failed at the transport level. */ if (rep->SCSIState & (MPI2_SCSI_STATE_NO_SCSI_STATUS | MPI2_SCSI_STATE_TERMINATED)) { mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); break; } /* In a modern packetized environment, an autosense failure * implies that there's not much else that can be done to * recover the command. */ if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_FAILED) { mpssas_set_ccbstatus(ccb, CAM_AUTOSENSE_FAIL); break; } /* * CAM doesn't care about SAS Response Info data, but if this is * the state check if TLR should be done. If not, clear the * TLR_bits for the target. */ if ((rep->SCSIState & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) && ((le32toh(rep->ResponseInfo) & MPI2_SCSI_RI_MASK_REASONCODE) == MPS_SCSI_RI_INVALID_FRAME)) { sc->mapping_table[target_id].TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; } /* * Intentionally override the normal SCSI status reporting * for these two cases. These are likely to happen in a * multi-initiator environment, and we want to make sure that * CAM retries these commands rather than fail them. */ if ((rep->SCSIStatus == MPI2_SCSI_STATUS_COMMAND_TERMINATED) || (rep->SCSIStatus == MPI2_SCSI_STATUS_TASK_ABORTED)) { mpssas_set_ccbstatus(ccb, CAM_REQ_ABORTED); break; } /* Handle normal status and sense */ csio->scsi_status = rep->SCSIStatus; if (rep->SCSIStatus == MPI2_SCSI_STATUS_GOOD) mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); else mpssas_set_ccbstatus(ccb, CAM_SCSI_STATUS_ERROR); if (rep->SCSIState & MPI2_SCSI_STATE_AUTOSENSE_VALID) { int sense_len, returned_sense_len; returned_sense_len = min(le32toh(rep->SenseCount), sizeof(struct scsi_sense_data)); if (returned_sense_len < ccb->csio.sense_len) ccb->csio.sense_resid = ccb->csio.sense_len - returned_sense_len; else ccb->csio.sense_resid = 0; sense_len = min(returned_sense_len, ccb->csio.sense_len - ccb->csio.sense_resid); bzero(&ccb->csio.sense_data, sizeof(ccb->csio.sense_data)); bcopy(cm->cm_sense, &ccb->csio.sense_data, sense_len); ccb->ccb_h.status |= CAM_AUTOSNS_VALID; } /* * Check if this is an INQUIRY command. If it's a VPD inquiry, * and it's page code 0 (Supported Page List), and there is * inquiry data, and this is for a sequential access device, and * the device is an SSP target, and TLR is supported by the * controller, turn the TLR_bits value ON if page 0x90 is * supported. */ if ((csio->cdb_io.cdb_bytes[0] == INQUIRY) && (csio->cdb_io.cdb_bytes[1] & SI_EVPD) && (csio->cdb_io.cdb_bytes[2] == SVPD_SUPPORTED_PAGE_LIST) && ((csio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) && (csio->data_ptr != NULL) && ((csio->data_ptr[0] & 0x1f) == T_SEQUENTIAL) && (sc->control_TLR) && (sc->mapping_table[target_id].device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)) { vpd_list = (struct scsi_vpd_supported_page_list *) csio->data_ptr; TLR_bits = &sc->mapping_table[target_id].TLR_bits; *TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR; TLR_on = (u8)MPI2_SCSIIO_CONTROL_TLR_ON; alloc_len = ((u16)csio->cdb_io.cdb_bytes[3] << 8) + csio->cdb_io.cdb_bytes[4]; alloc_len -= csio->resid; for (i = 0; i < MIN(vpd_list->length, alloc_len); i++) { if (vpd_list->list[i] == 0x90) { *TLR_bits = TLR_on; break; } } } /* * If this is a SATA direct-access end device, mark it so that * a SCSI StartStopUnit command will be sent to it when the * driver is being shutdown. */ if ((csio->cdb_io.cdb_bytes[0] == INQUIRY) && ((csio->data_ptr[0] & 0x1f) == T_DIRECT) && (sc->mapping_table[target_id].device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) && ((sc->mapping_table[target_id].device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) == MPI2_SAS_DEVICE_INFO_END_DEVICE)) { target = &sassc->targets[target_id]; target->supports_SSU = TRUE; mps_dprint(sc, MPS_XINFO, "Target %d supports SSU\n", target_id); } break; case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE: case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* * If devinfo is 0 this will be a volume. In that case don't * tell CAM that the volume is not there. We want volumes to * be enumerated until they are deleted/removed, not just * failed. */ if (cm->cm_targ->devinfo == 0) mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); else mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); break; case MPI2_IOCSTATUS_INVALID_SGL: mps_print_scsiio_cmd(sc, cm); mpssas_set_ccbstatus(ccb, CAM_UNREC_HBA_ERROR); break; case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED: /* * This is one of the responses that comes back when an I/O * has been aborted. If it is because of a timeout that we * initiated, just set the status to CAM_CMD_TIMEOUT. * Otherwise set it to CAM_REQ_ABORTED. The effect on the * command is the same (it gets retried, subject to the * retry counter), the only difference is what gets printed * on the console. */ if (cm->cm_flags & MPS_CM_FLAGS_TIMEDOUT) mpssas_set_ccbstatus(ccb, CAM_CMD_TIMEOUT); else mpssas_set_ccbstatus(ccb, CAM_REQ_ABORTED); break; case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: /* resid is ignored for this condition */ csio->resid = 0; mpssas_set_ccbstatus(ccb, CAM_DATA_RUN_ERR); break; case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: /* * These can sometimes be transient transport-related * errors, and sometimes persistent drive-related errors. * We used to retry these without decrementing the retry * count by returning CAM_REQUEUE_REQ. Unfortunately, if * we hit a persistent drive problem that returns one of * these error codes, we would retry indefinitely. So, * return CAM_REQ_CMP_ERROR so that we decrement the retry * count and avoid infinite retries. We're taking the * potential risk of flagging false failures in the event * of a topology-related error (e.g. a SAS expander problem * causes a command addressed to a drive to fail), but * avoiding getting into an infinite retry loop. However, * if we get them while were moving a device, we should * fail the request as 'not there' because the device * is effectively gone. */ if (cm->cm_targ->flags & MPSSAS_TARGET_INREMOVAL) mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); else mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); mps_dprint(sc, MPS_INFO, "Controller reported %s tgt %u SMID %u loginfo %x%s\n", mps_describe_table(mps_iocstatus_string, le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK), target_id, cm->cm_desc.Default.SMID, le32toh(rep->IOCLogInfo), (cm->cm_targ->flags & MPSSAS_TARGET_INREMOVAL) ? " departing" : ""); mps_dprint(sc, MPS_XINFO, "SCSIStatus %x SCSIState %x xfercount %u\n", rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); break; case MPI2_IOCSTATUS_INVALID_FUNCTION: case MPI2_IOCSTATUS_INTERNAL_ERROR: case MPI2_IOCSTATUS_INVALID_VPID: case MPI2_IOCSTATUS_INVALID_FIELD: case MPI2_IOCSTATUS_INVALID_STATE: case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED: case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR: case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR: case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED: default: mpssas_log_command(cm, MPS_XINFO, "completed ioc %x loginfo %x scsi %x state %x xfer %u\n", le16toh(rep->IOCStatus), le32toh(rep->IOCLogInfo), rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); csio->resid = cm->cm_length; mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); break; } mps_sc_failed_io_info(sc,csio,rep); if (sassc->flags & MPSSAS_QUEUE_FROZEN) { ccb->ccb_h.status |= CAM_RELEASE_SIMQ; sassc->flags &= ~MPSSAS_QUEUE_FROZEN; mps_dprint(sc, MPS_XINFO, "Command completed, " "unfreezing SIM queue\n"); } if (mpssas_get_ccbstatus(ccb) != CAM_REQ_CMP) { ccb->ccb_h.status |= CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1); } /* * Check to see if we're removing the device. If so, and this is the * last command on the queue, proceed with the deferred removal of the * device. Note, for removing a volume, this won't trigger because * pending_remove_tm will be NULL. */ if (cm->cm_targ->flags & MPSSAS_TARGET_INREMOVAL) { if (TAILQ_FIRST(&cm->cm_targ->commands) == NULL && cm->cm_targ->pending_remove_tm != NULL) { mps_dprint(sc, MPS_INFO, "Last pending command complete: starting remove_device\n"); mps_map_command(sc, cm->cm_targ->pending_remove_tm); cm->cm_targ->pending_remove_tm = NULL; } } mps_free_command(sc, cm); xpt_done(ccb); } /* All Request reached here are Endian safe */ static void mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm, union ccb *ccb) { pMpi2SCSIIORequest_t pIO_req; struct mps_softc *sc = sassc->sc; uint64_t virtLBA; uint32_t physLBA, stripe_offset, stripe_unit; uint32_t io_size, column; uint8_t *ptrLBA, lba_idx, physLBA_byte, *CDB; /* * If this is a valid SCSI command (Read6, Read10, Read16, Write6, * Write10, or Write16), build a direct I/O message. Otherwise, the I/O * will be sent to the IR volume itself. Since Read6 and Write6 are a * bit different than the 10/16 CDBs, handle them separately. */ pIO_req = (pMpi2SCSIIORequest_t)cm->cm_req; CDB = pIO_req->CDB.CDB32; /* * Handle 6 byte CDBs. */ if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_6) || (CDB[0] == WRITE_6))) { /* * Get the transfer size in blocks. */ io_size = (cm->cm_length >> sc->DD_block_exponent); /* * Get virtual LBA given in the CDB. */ virtLBA = ((uint64_t)(CDB[1] & 0x1F) << 16) | ((uint64_t)CDB[2] << 8) | (uint64_t)CDB[3]; /* * Check that LBA range for I/O does not exceed volume's * MaxLBA. */ if ((virtLBA + (uint64_t)io_size - 1) <= sc->DD_max_lba) { /* * Check if the I/O crosses a stripe boundary. If not, * translate the virtual LBA to a physical LBA and set * the DevHandle for the PhysDisk to be used. If it * does cross a boundary, do normal I/O. To get the * right DevHandle to use, get the map number for the * column, then use that map number to look up the * DevHandle of the PhysDisk. */ stripe_offset = (uint32_t)virtLBA & (sc->DD_stripe_size - 1); if ((stripe_offset + io_size) <= sc->DD_stripe_size) { physLBA = (uint32_t)virtLBA >> sc->DD_stripe_exponent; stripe_unit = physLBA / sc->DD_num_phys_disks; column = physLBA % sc->DD_num_phys_disks; pIO_req->DevHandle = htole16(sc->DD_column_map[column].dev_handle); /* ???? Is this endian safe*/ cm->cm_desc.SCSIIO.DevHandle = pIO_req->DevHandle; physLBA = (stripe_unit << sc->DD_stripe_exponent) + stripe_offset; ptrLBA = &pIO_req->CDB.CDB32[1]; physLBA_byte = (uint8_t)(physLBA >> 16); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[2]; physLBA_byte = (uint8_t)(physLBA >> 8); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[3]; physLBA_byte = (uint8_t)physLBA; *ptrLBA = physLBA_byte; /* * Set flag that Direct Drive I/O is * being done. */ cm->cm_flags |= MPS_CM_FLAGS_DD_IO; } } return; } /* * Handle 10, 12 or 16 byte CDBs. */ if ((pIO_req->DevHandle == sc->DD_dev_handle) && ((CDB[0] == READ_10) || (CDB[0] == WRITE_10) || (CDB[0] == READ_16) || (CDB[0] == WRITE_16) || (CDB[0] == READ_12) || (CDB[0] == WRITE_12))) { /* * For 16-byte CDB's, verify that the upper 4 bytes of the CDB * are 0. If not, this is accessing beyond 2TB so handle it in * the else section. 10-byte and 12-byte CDB's are OK. * FreeBSD sends very rare 12 byte READ/WRITE, but driver is * ready to accept 12byte CDB for Direct IOs. */ if ((CDB[0] == READ_10 || CDB[0] == WRITE_10) || (CDB[0] == READ_12 || CDB[0] == WRITE_12) || !(CDB[2] | CDB[3] | CDB[4] | CDB[5])) { /* * Get the transfer size in blocks. */ io_size = (cm->cm_length >> sc->DD_block_exponent); /* * Get virtual LBA. Point to correct lower 4 bytes of * LBA in the CDB depending on command. */ lba_idx = ((CDB[0] == READ_12) || (CDB[0] == WRITE_12) || (CDB[0] == READ_10) || (CDB[0] == WRITE_10))? 2 : 6; virtLBA = ((uint64_t)CDB[lba_idx] << 24) | ((uint64_t)CDB[lba_idx + 1] << 16) | ((uint64_t)CDB[lba_idx + 2] << 8) | (uint64_t)CDB[lba_idx + 3]; /* * Check that LBA range for I/O does not exceed volume's * MaxLBA. */ if ((virtLBA + (uint64_t)io_size - 1) <= sc->DD_max_lba) { /* * Check if the I/O crosses a stripe boundary. * If not, translate the virtual LBA to a * physical LBA and set the DevHandle for the * PhysDisk to be used. If it does cross a * boundary, do normal I/O. To get the right * DevHandle to use, get the map number for the * column, then use that map number to look up * the DevHandle of the PhysDisk. */ stripe_offset = (uint32_t)virtLBA & (sc->DD_stripe_size - 1); if ((stripe_offset + io_size) <= sc->DD_stripe_size) { physLBA = (uint32_t)virtLBA >> sc->DD_stripe_exponent; stripe_unit = physLBA / sc->DD_num_phys_disks; column = physLBA % sc->DD_num_phys_disks; pIO_req->DevHandle = htole16(sc->DD_column_map[column]. dev_handle); cm->cm_desc.SCSIIO.DevHandle = pIO_req->DevHandle; physLBA = (stripe_unit << sc->DD_stripe_exponent) + stripe_offset; ptrLBA = &pIO_req->CDB.CDB32[lba_idx]; physLBA_byte = (uint8_t)(physLBA >> 24); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[lba_idx + 1]; physLBA_byte = (uint8_t)(physLBA >> 16); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[lba_idx + 2]; physLBA_byte = (uint8_t)(physLBA >> 8); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[lba_idx + 3]; physLBA_byte = (uint8_t)physLBA; *ptrLBA = physLBA_byte; /* * Set flag that Direct Drive I/O is * being done. */ cm->cm_flags |= MPS_CM_FLAGS_DD_IO; } } } else { /* * 16-byte CDB and the upper 4 bytes of the CDB are not * 0. Get the transfer size in blocks. */ io_size = (cm->cm_length >> sc->DD_block_exponent); /* * Get virtual LBA. */ virtLBA = ((uint64_t)CDB[2] << 54) | ((uint64_t)CDB[3] << 48) | ((uint64_t)CDB[4] << 40) | ((uint64_t)CDB[5] << 32) | ((uint64_t)CDB[6] << 24) | ((uint64_t)CDB[7] << 16) | ((uint64_t)CDB[8] << 8) | (uint64_t)CDB[9]; /* * Check that LBA range for I/O does not exceed volume's * MaxLBA. */ if ((virtLBA + (uint64_t)io_size - 1) <= sc->DD_max_lba) { /* * Check if the I/O crosses a stripe boundary. * If not, translate the virtual LBA to a * physical LBA and set the DevHandle for the * PhysDisk to be used. If it does cross a * boundary, do normal I/O. To get the right * DevHandle to use, get the map number for the * column, then use that map number to look up * the DevHandle of the PhysDisk. */ stripe_offset = (uint32_t)virtLBA & (sc->DD_stripe_size - 1); if ((stripe_offset + io_size) <= sc->DD_stripe_size) { physLBA = (uint32_t)(virtLBA >> sc->DD_stripe_exponent); stripe_unit = physLBA / sc->DD_num_phys_disks; column = physLBA % sc->DD_num_phys_disks; pIO_req->DevHandle = htole16(sc->DD_column_map[column]. dev_handle); cm->cm_desc.SCSIIO.DevHandle = pIO_req->DevHandle; physLBA = (stripe_unit << sc->DD_stripe_exponent) + stripe_offset; /* * Set upper 4 bytes of LBA to 0. We * assume that the phys disks are less * than 2 TB's in size. Then, set the * lower 4 bytes. */ pIO_req->CDB.CDB32[2] = 0; pIO_req->CDB.CDB32[3] = 0; pIO_req->CDB.CDB32[4] = 0; pIO_req->CDB.CDB32[5] = 0; ptrLBA = &pIO_req->CDB.CDB32[6]; physLBA_byte = (uint8_t)(physLBA >> 24); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[7]; physLBA_byte = (uint8_t)(physLBA >> 16); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[8]; physLBA_byte = (uint8_t)(physLBA >> 8); *ptrLBA = physLBA_byte; ptrLBA = &pIO_req->CDB.CDB32[9]; physLBA_byte = (uint8_t)physLBA; *ptrLBA = physLBA_byte; /* * Set flag that Direct Drive I/O is * being done. */ cm->cm_flags |= MPS_CM_FLAGS_DD_IO; } } } } } static void mpssas_smpio_complete(struct mps_softc *sc, struct mps_command *cm) { MPI2_SMP_PASSTHROUGH_REPLY *rpl; MPI2_SMP_PASSTHROUGH_REQUEST *req; uint64_t sasaddr; union ccb *ccb; ccb = cm->cm_complete_data; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and SMP * commands require two S/G elements only. That should be handled * in the standard request size. */ if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_ERROR,"%s: cm_flags = %#x on SMP request!\n", __func__, cm->cm_flags); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } rpl = (MPI2_SMP_PASSTHROUGH_REPLY *)cm->cm_reply; if (rpl == NULL) { mps_dprint(sc, MPS_ERROR, "%s: NULL cm_reply!\n", __func__); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req; sasaddr = le32toh(req->SASAddress.Low); sasaddr |= ((uint64_t)(le32toh(req->SASAddress.High))) << 32; if ((le16toh(rpl->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS || rpl->SASStatus != MPI2_SASSTATUS_SUCCESS) { mps_dprint(sc, MPS_XINFO, "%s: IOCStatus %04x SASStatus %02x\n", __func__, le16toh(rpl->IOCStatus), rpl->SASStatus); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } mps_dprint(sc, MPS_XINFO, "%s: SMP request to SAS address " "%#jx completed successfully\n", __func__, (uintmax_t)sasaddr); if (ccb->smpio.smp_response[2] == SMP_FR_ACCEPTED) mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); else mpssas_set_ccbstatus(ccb, CAM_SMP_STATUS_ERROR); bailout: /* * We sync in both directions because we had DMAs in the S/G list * in both directions. */ bus_dmamap_sync(sc->buffer_dmat, cm->cm_dmamap, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->buffer_dmat, cm->cm_dmamap); mps_free_command(sc, cm); xpt_done(ccb); } static void mpssas_send_smpcmd(struct mpssas_softc *sassc, union ccb *ccb, uint64_t sasaddr) { struct mps_command *cm; uint8_t *request, *response; MPI2_SMP_PASSTHROUGH_REQUEST *req; struct mps_softc *sc; int error; sc = sassc->sc; error = 0; /* * XXX We don't yet support physical addresses here. */ switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) { case CAM_DATA_PADDR: case CAM_DATA_SG_PADDR: mps_dprint(sc, MPS_ERROR, "%s: physical addresses not supported\n", __func__); mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID); xpt_done(ccb); return; case CAM_DATA_SG: /* * The chip does not support more than one buffer for the * request or response. */ if ((ccb->smpio.smp_request_sglist_cnt > 1) || (ccb->smpio.smp_response_sglist_cnt > 1)) { mps_dprint(sc, MPS_ERROR, "%s: multiple request or response " "buffer segments not supported for SMP\n", __func__); mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID); xpt_done(ccb); return; } /* * The CAM_SCATTER_VALID flag was originally implemented * for the XPT_SCSI_IO CCB, which only has one data pointer. * We have two. So, just take that flag to mean that we * might have S/G lists, and look at the S/G segment count * to figure out whether that is the case for each individual * buffer. */ if (ccb->smpio.smp_request_sglist_cnt != 0) { bus_dma_segment_t *req_sg; req_sg = (bus_dma_segment_t *)ccb->smpio.smp_request; request = (uint8_t *)(uintptr_t)req_sg[0].ds_addr; } else request = ccb->smpio.smp_request; if (ccb->smpio.smp_response_sglist_cnt != 0) { bus_dma_segment_t *rsp_sg; rsp_sg = (bus_dma_segment_t *)ccb->smpio.smp_response; response = (uint8_t *)(uintptr_t)rsp_sg[0].ds_addr; } else response = ccb->smpio.smp_response; break; case CAM_DATA_VADDR: request = ccb->smpio.smp_request; response = ccb->smpio.smp_response; break; default: mpssas_set_ccbstatus(ccb, CAM_REQ_INVALID); xpt_done(ccb); return; } cm = mps_alloc_command(sc); if (cm == NULL) { mps_dprint(sc, MPS_ERROR, "%s: cannot allocate command\n", __func__); mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL); xpt_done(ccb); return; } req = (MPI2_SMP_PASSTHROUGH_REQUEST *)cm->cm_req; bzero(req, sizeof(*req)); req->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; /* Allow the chip to use any route to this SAS address. */ req->PhysicalPort = 0xff; req->RequestDataLength = htole16(ccb->smpio.smp_request_len); req->SGLFlags = MPI2_SGLFLAGS_SYSTEM_ADDRESS_SPACE | MPI2_SGLFLAGS_SGL_TYPE_MPI; mps_dprint(sc, MPS_XINFO, "%s: sending SMP request to SAS " "address %#jx\n", __func__, (uintmax_t)sasaddr); mpi_init_sge(cm, req, &req->SGL); /* * Set up a uio to pass into mps_map_command(). This allows us to * do one map command, and one busdma call in there. */ cm->cm_uio.uio_iov = cm->cm_iovec; cm->cm_uio.uio_iovcnt = 2; cm->cm_uio.uio_segflg = UIO_SYSSPACE; /* * The read/write flag isn't used by busdma, but set it just in * case. This isn't exactly accurate, either, since we're going in * both directions. */ cm->cm_uio.uio_rw = UIO_WRITE; cm->cm_iovec[0].iov_base = request; cm->cm_iovec[0].iov_len = le16toh(req->RequestDataLength); cm->cm_iovec[1].iov_base = response; cm->cm_iovec[1].iov_len = ccb->smpio.smp_response_len; cm->cm_uio.uio_resid = cm->cm_iovec[0].iov_len + cm->cm_iovec[1].iov_len; /* * Trigger a warning message in mps_data_cb() for the user if we * wind up exceeding two S/G segments. The chip expects one * segment for the request and another for the response. */ cm->cm_max_segs = 2; cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; cm->cm_complete = mpssas_smpio_complete; cm->cm_complete_data = ccb; /* * Tell the mapping code that we're using a uio, and that this is * an SMP passthrough request. There is a little special-case * logic there (in mps_data_cb()) to handle the bidirectional * transfer. */ cm->cm_flags |= MPS_CM_FLAGS_USE_UIO | MPS_CM_FLAGS_SMP_PASS | MPS_CM_FLAGS_DATAIN | MPS_CM_FLAGS_DATAOUT; /* The chip data format is little endian. */ req->SASAddress.High = htole32(sasaddr >> 32); req->SASAddress.Low = htole32(sasaddr); /* * XXX Note that we don't have a timeout/abort mechanism here. * From the manual, it looks like task management requests only * work for SCSI IO and SATA passthrough requests. We may need to * have a mechanism to retry requests in the event of a chip reset * at least. Hopefully the chip will insure that any errors short * of that are relayed back to the driver. */ error = mps_map_command(sc, cm); if ((error != 0) && (error != EINPROGRESS)) { mps_dprint(sc, MPS_ERROR, "%s: error %d returned from mps_map_command()\n", __func__, error); goto bailout_error; } return; bailout_error: mps_free_command(sc, cm); mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL); xpt_done(ccb); return; } static void mpssas_action_smpio(struct mpssas_softc *sassc, union ccb *ccb) { struct mps_softc *sc; struct mpssas_target *targ; uint64_t sasaddr = 0; sc = sassc->sc; /* * Make sure the target exists. */ KASSERT(ccb->ccb_h.target_id < sassc->maxtargets, ("Target %d out of bounds in XPT_SMP_IO\n", ccb->ccb_h.target_id)); targ = &sassc->targets[ccb->ccb_h.target_id]; if (targ->handle == 0x0) { mps_dprint(sc, MPS_ERROR, "%s: target %d does not exist!\n", __func__, ccb->ccb_h.target_id); mpssas_set_ccbstatus(ccb, CAM_SEL_TIMEOUT); xpt_done(ccb); return; } /* * If this device has an embedded SMP target, we'll talk to it * directly. * figure out what the expander's address is. */ if ((targ->devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) != 0) sasaddr = targ->sasaddr; /* * If we don't have a SAS address for the expander yet, try * grabbing it from the page 0x83 information cached in the * transport layer for this target. LSI expanders report the * expander SAS address as the port-associated SAS address in * Inquiry VPD page 0x83. Maxim expanders don't report it in page * 0x83. * * XXX KDM disable this for now, but leave it commented out so that * it is obvious that this is another possible way to get the SAS * address. * * The parent handle method below is a little more reliable, and * the other benefit is that it works for devices other than SES * devices. So you can send a SMP request to a da(4) device and it * will get routed to the expander that device is attached to. * (Assuming the da(4) device doesn't contain an SMP target...) */ #if 0 if (sasaddr == 0) sasaddr = xpt_path_sas_addr(ccb->ccb_h.path); #endif /* * If we still don't have a SAS address for the expander, look for * the parent device of this device, which is probably the expander. */ if (sasaddr == 0) { #ifdef OLD_MPS_PROBE struct mpssas_target *parent_target; #endif if (targ->parent_handle == 0x0) { mps_dprint(sc, MPS_ERROR, "%s: handle %d does not have a valid " "parent handle!\n", __func__, targ->handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } #ifdef OLD_MPS_PROBE parent_target = mpssas_find_target_by_handle(sassc, 0, targ->parent_handle); if (parent_target == NULL) { mps_dprint(sc, MPS_ERROR, "%s: handle %d does not have a valid " "parent target!\n", __func__, targ->handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } if ((parent_target->devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { mps_dprint(sc, MPS_ERROR, "%s: handle %d parent %d does not " "have an SMP target!\n", __func__, targ->handle, parent_target->handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } sasaddr = parent_target->sasaddr; #else /* OLD_MPS_PROBE */ if ((targ->parent_devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { mps_dprint(sc, MPS_ERROR, "%s: handle %d parent %d does not " "have an SMP target!\n", __func__, targ->handle, targ->parent_handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } if (targ->parent_sasaddr == 0x0) { mps_dprint(sc, MPS_ERROR, "%s: handle %d parent handle %d does " "not have a valid SAS address!\n", __func__, targ->handle, targ->parent_handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } sasaddr = targ->parent_sasaddr; #endif /* OLD_MPS_PROBE */ } if (sasaddr == 0) { mps_dprint(sc, MPS_INFO, "%s: unable to find SAS address for handle %d\n", __func__, targ->handle); mpssas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } mpssas_send_smpcmd(sassc, ccb, sasaddr); return; bailout: xpt_done(ccb); } static void mpssas_action_resetdev(struct mpssas_softc *sassc, union ccb *ccb) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mps_softc *sc; struct mps_command *tm; struct mpssas_target *targ; MPS_FUNCTRACE(sassc->sc); mtx_assert(&sassc->sc->mps_mtx, MA_OWNED); KASSERT(ccb->ccb_h.target_id < sassc->maxtargets, ("Target %d out of bounds in XPT_RESET_DEV\n", ccb->ccb_h.target_id)); sc = sassc->sc; tm = mpssas_alloc_tm(sc); if (tm == NULL) { mps_dprint(sc, MPS_ERROR, "command alloc failure in mpssas_action_resetdev\n"); mpssas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL); xpt_done(ccb); return; } targ = &sassc->targets[ccb->ccb_h.target_id]; req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->DevHandle = htole16(targ->handle); req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; /* SAS Hard Link Reset / SATA Link Reset */ req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; tm->cm_data = NULL; tm->cm_complete = mpssas_resetdev_complete; tm->cm_complete_data = ccb; tm->cm_targ = targ; mpssas_prepare_for_tm(sc, tm, targ, CAM_LUN_WILDCARD); mps_map_command(sc, tm); } static void mpssas_resetdev_complete(struct mps_softc *sc, struct mps_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *resp; union ccb *ccb; MPS_FUNCTRACE(sc); mtx_assert(&sc->mps_mtx, MA_OWNED); resp = (MPI2_SCSI_TASK_MANAGE_REPLY *)tm->cm_reply; ccb = tm->cm_complete_data; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * task management commands don't have S/G lists. */ if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; mps_dprint(sc, MPS_ERROR, "%s: cm_flags = %#x for reset of handle %#04x! " "This should not happen!\n", __func__, tm->cm_flags, req->DevHandle); mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } mps_dprint(sc, MPS_XINFO, "%s: IOCStatus = 0x%x ResponseCode = 0x%x\n", __func__, le16toh(resp->IOCStatus), le32toh(resp->ResponseCode)); if (le32toh(resp->ResponseCode) == MPI2_SCSITASKMGMT_RSP_TM_COMPLETE) { mpssas_set_ccbstatus(ccb, CAM_REQ_CMP); mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, CAM_LUN_WILDCARD); } else mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); bailout: mpssas_free_tm(sc, tm); xpt_done(ccb); } static void mpssas_poll(struct cam_sim *sim) { struct mpssas_softc *sassc; sassc = cam_sim_softc(sim); if (sassc->sc->mps_debug & MPS_TRACE) { /* frequent debug messages during a panic just slow * everything down too much. */ mps_printf(sassc->sc, "%s clearing MPS_TRACE\n", __func__); sassc->sc->mps_debug &= ~MPS_TRACE; } mps_intr_locked(sassc->sc); } static void mpssas_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) { struct mps_softc *sc; sc = (struct mps_softc *)callback_arg; switch (code) { case AC_ADVINFO_CHANGED: { struct mpssas_target *target; struct mpssas_softc *sassc; struct scsi_read_capacity_data_long rcap_buf; struct ccb_dev_advinfo cdai; struct mpssas_lun *lun; lun_id_t lunid; int found_lun; uintptr_t buftype; buftype = (uintptr_t)arg; found_lun = 0; sassc = sc->sassc; /* * We're only interested in read capacity data changes. */ if (buftype != CDAI_TYPE_RCAPLONG) break; /* * We should have a handle for this, but check to make sure. */ KASSERT(xpt_path_target_id(path) < sassc->maxtargets, ("Target %d out of bounds in mpssas_async\n", xpt_path_target_id(path))); target = &sassc->targets[xpt_path_target_id(path)]; if (target->handle == 0) break; lunid = xpt_path_lun_id(path); SLIST_FOREACH(lun, &target->luns, lun_link) { if (lun->lun_id == lunid) { found_lun = 1; break; } } if (found_lun == 0) { lun = malloc(sizeof(struct mpssas_lun), M_MPT2, M_NOWAIT | M_ZERO); if (lun == NULL) { mps_dprint(sc, MPS_ERROR, "Unable to alloc " "LUN for EEDP support.\n"); break; } lun->lun_id = lunid; SLIST_INSERT_HEAD(&target->luns, lun, lun_link); } bzero(&rcap_buf, sizeof(rcap_buf)); xpt_setup_ccb(&cdai.ccb_h, path, CAM_PRIORITY_NORMAL); cdai.ccb_h.func_code = XPT_DEV_ADVINFO; cdai.ccb_h.flags = CAM_DIR_IN; cdai.buftype = CDAI_TYPE_RCAPLONG; cdai.flags = CDAI_FLAG_NONE; cdai.bufsiz = sizeof(rcap_buf); cdai.buf = (uint8_t *)&rcap_buf; xpt_action((union ccb *)&cdai); if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE); if ((mpssas_get_ccbstatus((union ccb *)&cdai) == CAM_REQ_CMP) && (rcap_buf.prot & SRC16_PROT_EN)) { switch (rcap_buf.prot & SRC16_P_TYPE) { case SRC16_PTYPE_1: case SRC16_PTYPE_3: lun->eedp_formatted = TRUE; lun->eedp_block_size = scsi_4btoul(rcap_buf.length); break; case SRC16_PTYPE_2: default: lun->eedp_formatted = FALSE; lun->eedp_block_size = 0; break; } } else { lun->eedp_formatted = FALSE; lun->eedp_block_size = 0; } break; } default: break; } } /* * Set the INRESET flag for this target so that no I/O will be sent to * the target until the reset has completed. If an I/O request does * happen, the devq will be frozen. The CCB holds the path which is * used to release the devq. The devq is released and the CCB is freed * when the TM completes. */ void mpssas_prepare_for_tm(struct mps_softc *sc, struct mps_command *tm, struct mpssas_target *target, lun_id_t lun_id) { union ccb *ccb; path_id_t path_id; ccb = xpt_alloc_ccb_nowait(); if (ccb) { path_id = cam_sim_path(sc->sassc->sim); if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, path_id, target->tid, lun_id) != CAM_REQ_CMP) { xpt_free_ccb(ccb); } else { tm->cm_ccb = ccb; tm->cm_targ = target; target->flags |= MPSSAS_TARGET_INRESET; } } } int mpssas_startup(struct mps_softc *sc) { /* * Send the port enable message and set the wait_for_port_enable flag. * This flag helps to keep the simq frozen until all discovery events * are processed. */ sc->wait_for_port_enable = 1; mpssas_send_portenable(sc); return (0); } static int mpssas_send_portenable(struct mps_softc *sc) { MPI2_PORT_ENABLE_REQUEST *request; struct mps_command *cm; MPS_FUNCTRACE(sc); if ((cm = mps_alloc_command(sc)) == NULL) return (EBUSY); request = (MPI2_PORT_ENABLE_REQUEST *)cm->cm_req; request->Function = MPI2_FUNCTION_PORT_ENABLE; request->MsgFlags = 0; request->VP_ID = 0; cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; cm->cm_complete = mpssas_portenable_complete; cm->cm_data = NULL; cm->cm_sge = NULL; mps_map_command(sc, cm); mps_dprint(sc, MPS_XINFO, "mps_send_portenable finished cm %p req %p complete %p\n", cm, cm->cm_req, cm->cm_complete); return (0); } static void mpssas_portenable_complete(struct mps_softc *sc, struct mps_command *cm) { MPI2_PORT_ENABLE_REPLY *reply; struct mpssas_softc *sassc; MPS_FUNCTRACE(sc); sassc = sc->sassc; /* * Currently there should be no way we can hit this case. It only * happens when we have a failure to allocate chain frames, and * port enable commands don't have S/G lists. */ if ((cm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) { mps_dprint(sc, MPS_ERROR, "%s: cm_flags = %#x for port enable! " "This should not happen!\n", __func__, cm->cm_flags); } reply = (MPI2_PORT_ENABLE_REPLY *)cm->cm_reply; if (reply == NULL) mps_dprint(sc, MPS_FAULT, "Portenable NULL reply\n"); else if (le16toh(reply->IOCStatus & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) mps_dprint(sc, MPS_FAULT, "Portenable failed\n"); mps_free_command(sc, cm); /* * Get WarpDrive info after discovery is complete but before the scan * starts. At this point, all devices are ready to be exposed to the * OS. If devices should be hidden instead, take them out of the * 'targets' array before the scan. The devinfo for a disk will have * some info and a volume's will be 0. Use that to remove disks. */ mps_wd_config_pages(sc); /* * Done waiting for port enable to complete. Decrement the refcount. * If refcount is 0, discovery is complete and a rescan of the bus can * take place. Since the simq was explicitly frozen before port * enable, it must be explicitly released here to keep the * freeze/release count in sync. */ sc->wait_for_port_enable = 0; sc->port_enable_complete = 1; wakeup(&sc->port_enable_complete); mpssas_startup_decrement(sassc); } int mpssas_check_id(struct mpssas_softc *sassc, int id) { struct mps_softc *sc = sassc->sc; char *ids; char *name; ids = &sc->exclude_ids[0]; while((name = strsep(&ids, ",")) != NULL) { if (name[0] == '\0') continue; if (strtol(name, NULL, 0) == (long)id) return (1); } return (0); } void mpssas_realloc_targets(struct mps_softc *sc, int maxtargets) { struct mpssas_softc *sassc; struct mpssas_lun *lun, *lun_tmp; struct mpssas_target *targ; int i; sassc = sc->sassc; /* * The number of targets is based on IOC Facts, so free all of * the allocated LUNs for each target and then the target buffer * itself. */ for (i=0; i< maxtargets; i++) { targ = &sassc->targets[i]; SLIST_FOREACH_SAFE(lun, &targ->luns, lun_link, lun_tmp) { free(lun, M_MPT2); } } free(sassc->targets, M_MPT2); sassc->targets = malloc(sizeof(struct mpssas_target) * maxtargets, M_MPT2, M_WAITOK|M_ZERO); if (!sassc->targets) { panic("%s failed to alloc targets with error %d\n", __func__, ENOMEM); } }