/*- * Copyright (c) 2009 Yahoo! Inc. * Copyright (c) 2011-2015 LSI Corp. * Copyright (c) 2013-2016 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 * */ #include __FBSDID("$FreeBSD$"); /* Communications core for Avago Technologies (LSI) MPT3 */ /* TODO Move headers to mprvar */ #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 #if __FreeBSD_version >= 900026 #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #define MPRSAS_DISCOVERY_TIMEOUT 20 #define MPRSAS_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_MPRSAS, "MPRSAS", "MPR SAS memory"); static void mprsas_remove_device(struct mpr_softc *, struct mpr_command *); static void mprsas_remove_complete(struct mpr_softc *, struct mpr_command *); static void mprsas_action(struct cam_sim *sim, union ccb *ccb); static void mprsas_poll(struct cam_sim *sim); static void mprsas_scsiio_timeout(void *data); static void mprsas_abort_complete(struct mpr_softc *sc, struct mpr_command *cm); static void mprsas_action_scsiio(struct mprsas_softc *, union ccb *); static void mprsas_scsiio_complete(struct mpr_softc *, struct mpr_command *); static void mprsas_action_resetdev(struct mprsas_softc *, union ccb *); static void mprsas_resetdev_complete(struct mpr_softc *, struct mpr_command *); static int mprsas_send_abort(struct mpr_softc *sc, struct mpr_command *tm, struct mpr_command *cm); static void mprsas_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg); #if (__FreeBSD_version < 901503) || \ ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006)) static void mprsas_check_eedp(struct mpr_softc *sc, struct cam_path *path, struct ccb_getdev *cgd); static void mprsas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb); #endif static int mprsas_send_portenable(struct mpr_softc *sc); static void mprsas_portenable_complete(struct mpr_softc *sc, struct mpr_command *cm); #if __FreeBSD_version >= 900026 static void mprsas_smpio_complete(struct mpr_softc *sc, struct mpr_command *cm); static void mprsas_send_smpcmd(struct mprsas_softc *sassc, union ccb *ccb, uint64_t sasaddr); static void mprsas_action_smpio(struct mprsas_softc *sassc, union ccb *ccb); #endif //FreeBSD_version >= 900026 struct mprsas_target * mprsas_find_target_by_handle(struct mprsas_softc *sassc, int start, uint16_t handle) { struct mprsas_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 mprsas_startup_increment(struct mprsas_softc *sassc) { MPR_FUNCTRACE(sassc->sc); if ((sassc->flags & MPRSAS_IN_STARTUP) != 0) { if (sassc->startup_refcount++ == 0) { /* just starting, freeze the simq */ mpr_dprint(sassc->sc, MPR_INIT, "%s freezing simq\n", __func__); #if (__FreeBSD_version >= 1000039) || \ ((__FreeBSD_version < 1000000) && (__FreeBSD_version >= 902502)) xpt_hold_boot(); #endif xpt_freeze_simq(sassc->sim, 1); } mpr_dprint(sassc->sc, MPR_INIT, "%s refcount %u\n", __func__, sassc->startup_refcount); } } void mprsas_release_simq_reinit(struct mprsas_softc *sassc) { if (sassc->flags & MPRSAS_QUEUE_FROZEN) { sassc->flags &= ~MPRSAS_QUEUE_FROZEN; xpt_release_simq(sassc->sim, 1); mpr_dprint(sassc->sc, MPR_INFO, "Unfreezing SIM queue\n"); } } void mprsas_startup_decrement(struct mprsas_softc *sassc) { MPR_FUNCTRACE(sassc->sc); if ((sassc->flags & MPRSAS_IN_STARTUP) != 0) { if (--sassc->startup_refcount == 0) { /* finished all discovery-related actions, release * the simq and rescan for the latest topology. */ mpr_dprint(sassc->sc, MPR_INIT, "%s releasing simq\n", __func__); sassc->flags &= ~MPRSAS_IN_STARTUP; xpt_release_simq(sassc->sim, 1); #if (__FreeBSD_version >= 1000039) || \ ((__FreeBSD_version < 1000000) && (__FreeBSD_version >= 902502)) xpt_release_boot(); #else mprsas_rescan_target(sassc->sc, NULL); #endif } mpr_dprint(sassc->sc, MPR_INIT, "%s refcount %u\n", __func__, sassc->startup_refcount); } } /* The firmware requires us to stop sending commands when we're doing task * management, so refcount the TMs and keep the simq frozen when any are in * use. */ struct mpr_command * mprsas_alloc_tm(struct mpr_softc *sc) { struct mpr_command *tm; MPR_FUNCTRACE(sc); tm = mpr_alloc_high_priority_command(sc); return tm; } void mprsas_free_tm(struct mpr_softc *sc, struct mpr_command *tm) { int target_id = 0xFFFFFFFF; MPR_FUNCTRACE(sc); 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 &= ~MPRSAS_TARGET_INRESET; target_id = tm->cm_targ->tid; } if (tm->cm_ccb) { mpr_dprint(sc, MPR_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); } mpr_free_high_priority_command(sc, tm); } void mprsas_rescan_target(struct mpr_softc *sc, struct mprsas_target *targ) { struct mprsas_softc *sassc = sc->sassc; path_id_t pathid; target_id_t targetid; union ccb *ccb; MPR_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) { mpr_dprint(sc, MPR_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) { mpr_dprint(sc, MPR_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; mpr_dprint(sc, MPR_TRACE, "%s targetid %u\n", __func__, targetid); xpt_rescan(ccb); } static void mprsas_log_command(struct mpr_command *cm, u_int level, const char *fmt, ...) { struct sbuf sb; va_list ap; char str[192]; char path_str[64]; if (cm == NULL) return; /* No need to be in here if debugging isn't enabled */ if ((cm->cm_sc->mpr_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); mpr_print_field(cm->cm_sc, "%s", sbuf_data(&sb)); va_end(ap); } static void mprsas_remove_volume(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; struct mprsas_target *targ; uint16_t handle; MPR_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? */ mpr_dprint(sc, MPR_FAULT, "%s NULL reply resetting device " "0x%04x\n", __func__, handle); mprsas_free_tm(sc, tm); return; } if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) { mpr_dprint(sc, MPR_ERROR, "IOCStatus = 0x%x while resetting " "device 0x%x\n", le16toh(reply->IOCStatus), handle); } mpr_dprint(sc, MPR_XINFO, "Reset aborted %u commands\n", le32toh(reply->TerminationCount)); mpr_free_reply(sc, tm->cm_reply_data); tm->cm_reply = NULL; /* Ensures the reply won't get re-freed */ mpr_dprint(sc, MPR_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_level_valid = 0x0; targ->encl_level = 0x0; targ->connector_name[0] = ' '; targ->connector_name[1] = ' '; targ->connector_name[2] = ' '; targ->connector_name[3] = ' '; targ->encl_slot = 0x0; targ->exp_dev_handle = 0x0; targ->phy_num = 0x0; targ->linkrate = 0x0; targ->devinfo = 0x0; targ->flags = 0x0; targ->scsi_req_desc_type = 0; } mprsas_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 mprsas_prepare_volume_remove(struct mprsas_softc *sassc, uint16_t handle) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpr_softc *sc; struct mpr_command *cm; struct mprsas_target *targ = NULL; MPR_FUNCTRACE(sassc->sc); sc = sassc->sc; targ = mprsas_find_target_by_handle(sassc, 0, handle); if (targ == NULL) { /* FIXME: what is the action? */ /* We don't know about this device? */ mpr_dprint(sc, MPR_ERROR, "%s %d : invalid handle 0x%x \n", __func__,__LINE__, handle); return; } targ->flags |= MPRSAS_TARGET_INREMOVAL; cm = mprsas_alloc_tm(sc); if (cm == NULL) { mpr_dprint(sc, MPR_ERROR, "%s: command alloc failure\n", __func__); return; } mprsas_rescan_target(sc, targ); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req; req->DevHandle = targ->handle; req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 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_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; cm->cm_complete = mprsas_remove_volume; cm->cm_complete_data = (void *)(uintptr_t)handle; mpr_dprint(sc, MPR_INFO, "%s: Sending reset for target ID %d\n", __func__, targ->tid); mprsas_prepare_for_tm(sc, cm, targ, CAM_LUN_WILDCARD); mpr_map_command(sc, cm); } /* * The 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 needs 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 mprsas_prepare_remove(struct mprsas_softc *sassc, uint16_t handle) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpr_softc *sc; struct mpr_command *cm; struct mprsas_target *targ = NULL; MPR_FUNCTRACE(sassc->sc); sc = sassc->sc; targ = mprsas_find_target_by_handle(sassc, 0, handle); if (targ == NULL) { /* FIXME: what is the action? */ /* We don't know about this device? */ mpr_dprint(sc, MPR_ERROR, "%s : invalid handle 0x%x \n", __func__, handle); return; } targ->flags |= MPRSAS_TARGET_INREMOVAL; cm = mprsas_alloc_tm(sc); if (cm == NULL) { mpr_dprint(sc, MPR_ERROR, "%s: command alloc failure\n", __func__); return; } mprsas_rescan_target(sc, targ); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)cm->cm_req; memset(req, 0, sizeof(*req)); req->DevHandle = htole16(targ->handle); req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 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_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; cm->cm_complete = mprsas_remove_device; cm->cm_complete_data = (void *)(uintptr_t)handle; mpr_dprint(sc, MPR_INFO, "%s: Sending reset for target ID %d\n", __func__, targ->tid); mprsas_prepare_for_tm(sc, cm, targ, CAM_LUN_WILDCARD); mpr_map_command(sc, cm); } static void mprsas_remove_device(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SAS_IOUNIT_CONTROL_REQUEST *req; struct mprsas_target *targ; struct mpr_command *next_cm; uint16_t handle; MPR_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_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? */ mpr_dprint(sc, MPR_FAULT, "%s NULL reply resetting device " "0x%04x\n", __func__, handle); mprsas_free_tm(sc, tm); return; } if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) { mpr_dprint(sc, MPR_ERROR, "IOCStatus = 0x%x while resetting " "device 0x%x\n", le16toh(reply->IOCStatus), handle); } mpr_dprint(sc, MPR_XINFO, "Reset aborted %u commands\n", le32toh(reply->TerminationCount)); mpr_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 = mprsas_remove_complete; tm->cm_complete_data = (void *)(uintptr_t)handle; mpr_map_command(sc, tm); mpr_dprint(sc, MPR_INFO, "clearing target %u handle 0x%04x\n", targ->tid, handle); if (targ->encl_level_valid) { mpr_dprint(sc, MPR_INFO, "At enclosure level %d, slot %d, " "connector name (%4s)\n", targ->encl_level, targ->encl_slot, targ->connector_name); } TAILQ_FOREACH_SAFE(tm, &targ->commands, cm_link, next_cm) { union ccb *ccb; mpr_dprint(sc, MPR_XINFO, "Completing missed command %p\n", tm); ccb = tm->cm_complete_data; mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); mprsas_scsiio_complete(sc, tm); } } static void mprsas_remove_complete(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SAS_IOUNIT_CONTROL_REPLY *reply; uint16_t handle; struct mprsas_target *targ; struct mprsas_lun *lun; MPR_FUNCTRACE(sc); reply = (MPI2_SAS_IOUNIT_CONTROL_REPLY *)tm->cm_reply; handle = (uint16_t)(uintptr_t)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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_XINFO, "%s: cm_flags = %#x for remove of " "handle %#04x! This should not happen!\n", __func__, tm->cm_flags, handle); mprsas_free_tm(sc, tm); return; } if (reply == NULL) { /* most likely a chip reset */ mpr_dprint(sc, MPR_FAULT, "%s NULL reply removing device " "0x%04x\n", __func__, handle); mprsas_free_tm(sc, tm); return; } mpr_dprint(sc, MPR_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 = tm->cm_targ; targ->handle = 0x0; targ->encl_handle = 0x0; targ->encl_level_valid = 0x0; targ->encl_level = 0x0; targ->connector_name[0] = ' '; targ->connector_name[1] = ' '; targ->connector_name[2] = ' '; targ->connector_name[3] = ' '; targ->encl_slot = 0x0; targ->exp_dev_handle = 0x0; targ->phy_num = 0x0; targ->linkrate = 0x0; targ->devinfo = 0x0; targ->flags = 0x0; targ->scsi_req_desc_type = 0; while (!SLIST_EMPTY(&targ->luns)) { lun = SLIST_FIRST(&targ->luns); SLIST_REMOVE_HEAD(&targ->luns, lun_link); free(lun, M_MPR); } } mprsas_free_tm(sc, tm); } static int mprsas_register_events(struct mpr_softc *sc) { uint8_t events[16]; 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_TEMP_THRESHOLD); setbit(events, MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR); if (sc->facts->MsgVersion >= MPI2_VERSION_02_06) { setbit(events, MPI2_EVENT_ACTIVE_CABLE_EXCEPTION); if (sc->mpr_flags & MPR_FLAGS_GEN35_IOC) { setbit(events, MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE); setbit(events, MPI2_EVENT_PCIE_ENUMERATION); setbit(events, MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST); } } mpr_register_events(sc, events, mprsas_evt_handler, NULL, &sc->sassc->mprsas_eh); return (0); } int mpr_attach_sas(struct mpr_softc *sc) { struct mprsas_softc *sassc; cam_status status; int unit, error = 0, reqs; MPR_FUNCTRACE(sc); mpr_dprint(sc, MPR_INIT, "%s entered\n", __func__); sassc = malloc(sizeof(struct mprsas_softc), M_MPR, M_WAITOK|M_ZERO); if (!sassc) { mpr_dprint(sc, MPR_INIT|MPR_ERROR, "Cannot allocate SAS subsystem 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 mprsas_target) * sassc->maxtargets, M_MPR, M_WAITOK|M_ZERO); if (!sassc->targets) { mpr_dprint(sc, MPR_INIT|MPR_ERROR, "Cannot allocate SAS target memory\n"); free(sassc, M_MPR); return (ENOMEM); } sc->sassc = sassc; sassc->sc = sc; reqs = sc->num_reqs - sc->num_prireqs - 1; if ((sassc->devq = cam_simq_alloc(reqs)) == NULL) { mpr_dprint(sc, MPR_INIT|MPR_ERROR, "Cannot allocate SIMQ\n"); error = ENOMEM; goto out; } unit = device_get_unit(sc->mpr_dev); sassc->sim = cam_sim_alloc(mprsas_action, mprsas_poll, "mpr", sassc, unit, &sc->mpr_mtx, reqs, reqs, sassc->devq); if (sassc->sim == NULL) { mpr_dprint(sc, MPR_INIT|MPR_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, mprsas_firmware_event_work, sc); sassc->ev_tq = taskqueue_create("mpr_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->mpr_dev)); mpr_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->mpr_dev, 0)) != 0) { mpr_dprint(sc, MPR_INIT|MPR_ERROR, "Error %d registering SCSI bus\n", error); mpr_unlock(sc); goto out; } /* * Assume that discovery events will start right away. * * Hold off boot until discovery is complete. */ sassc->flags |= MPRSAS_IN_STARTUP | MPRSAS_IN_DISCOVERY; sc->sassc->startup_refcount = 0; mprsas_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) { mpr_dprint(sc, MPR_INIT|MPR_ERROR, "Error %#x creating sim path\n", status); sassc->path = NULL; } else { int event; #if (__FreeBSD_version >= 1000006) || \ ((__FreeBSD_version >= 901503) && (__FreeBSD_version < 1000000)) event = AC_ADVINFO_CHANGED | AC_FOUND_DEVICE; #else event = AC_FOUND_DEVICE; #endif /* * Prior to the CAM locking improvements, we can't call * xpt_register_async() with a particular path specified. * * If a path isn't specified, xpt_register_async() will * generate a wildcard path and acquire the XPT lock while * it calls xpt_action() to execute the XPT_SASYNC_CB CCB. * It will then drop the XPT lock once that is done. * * If a path is specified for xpt_register_async(), it will * not acquire and drop the XPT lock around the call to * xpt_action(). xpt_action() asserts that the caller * holds the SIM lock, so the SIM lock has to be held when * calling xpt_register_async() when the path is specified. * * But xpt_register_async calls xpt_for_all_devices(), * which calls xptbustraverse(), which will acquire each * SIM lock. When it traverses our particular bus, it will * necessarily acquire the SIM lock, which will lead to a * recursive lock acquisition. * * The CAM locking changes fix this problem by acquiring * the XPT topology lock around bus traversal in * xptbustraverse(), so the caller can hold the SIM lock * and it does not cause a recursive lock acquisition. * * These __FreeBSD_version values are approximate, especially * for stable/10, which is two months later than the actual * change. */ #if (__FreeBSD_version < 1000703) || \ ((__FreeBSD_version >= 1100000) && (__FreeBSD_version < 1100002)) mpr_unlock(sc); status = xpt_register_async(event, mprsas_async, sc, NULL); mpr_lock(sc); #else status = xpt_register_async(event, mprsas_async, sc, sassc->path); #endif if (status != CAM_REQ_CMP) { mpr_dprint(sc, MPR_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. */ mpr_printf(sc, "EEDP capabilities disabled.\n"); } mpr_unlock(sc); mprsas_register_events(sc); out: if (error) mpr_detach_sas(sc); mpr_dprint(sc, MPR_INIT, "%s exit, error= %d\n", __func__, error); return (error); } int mpr_detach_sas(struct mpr_softc *sc) { struct mprsas_softc *sassc; struct mprsas_lun *lun, *lun_tmp; struct mprsas_target *targ; int i; MPR_FUNCTRACE(sc); if (sc->sassc == NULL) return (0); sassc = sc->sassc; mpr_deregister_events(sc, sassc->mprsas_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. */ mpr_lock(sc); while (sassc->startup_refcount != 0) mprsas_startup_decrement(sassc); /* Deregister our async handler */ if (sassc->path != NULL) { xpt_register_async(0, mprsas_async, sc, sassc->path); xpt_free_path(sassc->path); sassc->path = NULL; } if (sassc->flags & MPRSAS_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); } mpr_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_MPR); } } free(sassc->targets, M_MPR); free(sassc, M_MPR); sc->sassc = NULL; return (0); } void mprsas_discovery_end(struct mprsas_softc *sassc) { struct mpr_softc *sc = sassc->sc; MPR_FUNCTRACE(sc); if (sassc->flags & MPRSAS_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) { mpr_dprint(sc, MPR_XINFO | MPR_MAPPING, "Discovery has " "completed. Check for missing devices in the mapping " "table.\n"); callout_reset(&sc->device_check_callout, MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices, sc); } } static void mprsas_action(struct cam_sim *sim, union ccb *ccb) { struct mprsas_softc *sassc; sassc = cam_sim_softc(sim); MPR_FUNCTRACE(sassc->sc); mpr_dprint(sassc->sc, MPR_TRACE, "ccb func_code 0x%x\n", ccb->ccb_h.func_code); mtx_assert(&sassc->sc->mpr_mtx, MA_OWNED); switch (ccb->ccb_h.func_code) { case XPT_PATH_INQ: { struct ccb_pathinq *cpi = &ccb->cpi; struct mpr_softc *sc = sassc->sc; cpi->version_num = 1; cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; cpi->target_sprt = 0; #if (__FreeBSD_version >= 1000039) || \ ((__FreeBSD_version < 1000000) && (__FreeBSD_version >= 902502)) cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED | PIM_NOSCAN; #else cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED; #endif 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); /* * XXXSLM-I think this needs to change based on config page or * something instead of hardcoded to 150000. */ 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; mprsas_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 mprsas_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_TRAN_SETTINGS\n", cts->ccb_h.target_id)); targ = &sassc->targets[cts->ccb_h.target_id]; if (targ->handle == 0x0) { mprsas_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; case 0x0b: sas->bitrate = 1200000; break; default: sas->valid = 0; } cts->protocol = PROTO_SCSI; scsi->valid = CTS_SCSI_VALID_TQ; scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); break; } case XPT_CALC_GEOMETRY: cam_calc_geometry(&ccb->ccg, /*extended*/1); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); break; case XPT_RESET_DEV: mpr_dprint(sassc->sc, MPR_XINFO, "mprsas_action " "XPT_RESET_DEV\n"); mprsas_action_resetdev(sassc, ccb); return; case XPT_RESET_BUS: case XPT_ABORT: case XPT_TERM_IO: mpr_dprint(sassc->sc, MPR_XINFO, "mprsas_action faking success " "for abort or reset\n"); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); break; case XPT_SCSI_IO: mprsas_action_scsiio(sassc, ccb); return; #if __FreeBSD_version >= 900026 case XPT_SMP_IO: mprsas_action_smpio(sassc, ccb); return; #endif default: mprsas_set_ccbstatus(ccb, CAM_FUNC_NOTAVAIL); break; } xpt_done(ccb); } static void mprsas_announce_reset(struct mpr_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; mpr_dprint(sc, MPR_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) { mpr_dprint(sc, MPR_ERROR, "unable to create path for reset " "notification\n"); return; } xpt_async(ac_code, path, NULL); xpt_free_path(path); } static void mprsas_complete_all_commands(struct mpr_softc *sc) { struct mpr_command *cm; int i; int completed; MPR_FUNCTRACE(sc); mtx_assert(&sc->mpr_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 == MPR_CM_STATE_FREE) continue; cm->cm_state = MPR_CM_STATE_BUSY; cm->cm_reply = NULL; completed = 0; if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) { MPASS(cm->cm_data); free(cm->cm_data, M_MPR); cm->cm_data = NULL; } if (cm->cm_flags & MPR_CM_FLAGS_POLLED) cm->cm_flags |= MPR_CM_FLAGS_COMPLETE; if (cm->cm_complete != NULL) { mprsas_log_command(cm, MPR_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 & MPR_CM_FLAGS_WAKEUP) { mprsas_log_command(cm, MPR_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 != MPR_CM_STATE_FREE)) { /* this should never happen, but if it does, log */ mprsas_log_command(cm, MPR_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 mprsas_handle_reinit(struct mpr_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. */ mpr_dprint(sc, MPR_INIT, "%s startup\n", __func__); sc->sassc->flags |= MPRSAS_IN_STARTUP; sc->sassc->flags |= MPRSAS_IN_DISCOVERY; mprsas_startup_increment(sc->sassc); /* notify CAM of a bus reset */ mprsas_announce_reset(sc, AC_BUS_RESET, CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); /* complete and cleanup after all outstanding commands */ mprsas_complete_all_commands(sc); mpr_dprint(sc, MPR_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) mpr_dprint(sc, MPR_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 = MPRSAS_TARGET_INDIAGRESET; } } static void mprsas_tm_timeout(void *data) { struct mpr_command *tm = data; struct mpr_softc *sc = tm->cm_sc; mtx_assert(&sc->mpr_mtx, MA_OWNED); mprsas_log_command(tm, MPR_INFO|MPR_RECOVERY, "task mgmt %p timed " "out\n", tm); KASSERT(tm->cm_state == MPR_CM_STATE_INQUEUE, ("command not inqueue\n")); tm->cm_state = MPR_CM_STATE_BUSY; mpr_reinit(sc); } static void mprsas_logical_unit_reset_complete(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; unsigned int cm_count = 0; struct mpr_command *cm; struct mprsas_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_RECOVERY|MPR_ERROR, "%s: cm_flags = %#x for LUN reset! " "This should not happen!\n", __func__, tm->cm_flags); mprsas_free_tm(sc, tm); return; } if (reply == NULL) { mpr_dprint(sc, MPR_RECOVERY, "NULL reset reply for tm %p\n", tm); if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing " "reset, ignoring NULL LUN reset reply\n"); targ->tm = NULL; mprsas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on " "LUN reset attempt, resetting controller\n"); mpr_reinit(sc); } return; } mpr_dprint(sc, MPR_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) { mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "Finished recovery after LUN reset for target %u\n", targ->tid); mprsas_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) { mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "More commands to abort for target %u\n", targ->tid); mprsas_send_abort(sc, tm, cm); } else { targ->tm = NULL; mprsas_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. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "logical unit reset complete for target %u, but still " "have %u command(s), sending target reset\n", targ->tid, cm_count); mprsas_send_reset(sc, tm, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET); } } static void mprsas_target_reset_complete(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mprsas_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_ERROR, "%s: cm_flags = %#x for target " "reset! This should not happen!\n", __func__, tm->cm_flags); mprsas_free_tm(sc, tm); return; } if (reply == NULL) { mpr_dprint(sc, MPR_RECOVERY, "NULL target reset reply for tm %p TaskMID %u\n", tm, le16toh(req->TaskMID)); if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing " "reset, ignoring NULL target reset reply\n"); targ->tm = NULL; mprsas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on " "target reset attempt, resetting controller\n"); mpr_reinit(sc); } return; } mpr_dprint(sc, MPR_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. */ mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "Finished reset recovery for target %u\n", targ->tid); mprsas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, CAM_LUN_WILDCARD); targ->tm = NULL; mprsas_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. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "Target reset complete for target %u, but still have %u " "command(s), resetting controller\n", targ->tid, targ->outstanding); mpr_reinit(sc); } } #define MPR_RESET_TIMEOUT 30 int mprsas_send_reset(struct mpr_softc *sc, struct mpr_command *tm, uint8_t type) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mprsas_target *target; int err; target = tm->cm_targ; if (target->handle == 0) { mpr_dprint(sc, MPR_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->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; req->TaskType = type; if (type == MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET) { /* XXX Need to handle invalid LUNs */ MPR_SET_LUN(req->LUN, tm->cm_lun); tm->cm_targ->logical_unit_resets++; mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "Sending logical unit reset to target %u lun %d\n", target->tid, tm->cm_lun); tm->cm_complete = mprsas_logical_unit_reset_complete; mprsas_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++; mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "Sending target reset to target %u\n", target->tid); tm->cm_complete = mprsas_target_reset_complete; mprsas_prepare_for_tm(sc, tm, target, CAM_LUN_WILDCARD); } else { mpr_dprint(sc, MPR_ERROR, "unexpected reset type 0x%x\n", type); return -1; } if (target->encl_level_valid) { mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "At enclosure level %d, slot %d, connector name (%4s)\n", target->encl_level, target->encl_slot, target->connector_name); } tm->cm_data = NULL; tm->cm_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; tm->cm_complete_data = (void *)tm; callout_reset(&tm->cm_callout, MPR_RESET_TIMEOUT * hz, mprsas_tm_timeout, tm); err = mpr_map_command(sc, tm); if (err) mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY, "error %d sending reset type %u\n", err, type); return err; } static void mprsas_abort_complete(struct mpr_softc *sc, struct mpr_command *tm) { struct mpr_command *cm; MPI2_SCSI_TASK_MANAGE_REPLY *reply; MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mprsas_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_RECOVERY|MPR_ERROR, "cm_flags = %#x for abort %p TaskMID %u!\n", tm->cm_flags, tm, le16toh(req->TaskMID)); mprsas_free_tm(sc, tm); return; } if (reply == NULL) { mpr_dprint(sc, MPR_RECOVERY, "NULL abort reply for tm %p TaskMID %u\n", tm, le16toh(req->TaskMID)); if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) { /* this completion was due to a reset, just cleanup */ mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing " "reset, ignoring NULL abort reply\n"); targ->tm = NULL; mprsas_free_tm(sc, tm); } else { /* we should have gotten a reply. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on " "abort attempt, resetting controller\n"); mpr_reinit(sc); } return; } mpr_dprint(sc, MPR_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. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "Finished abort recovery for target %u\n", targ->tid); targ->tm = NULL; mprsas_free_tm(sc, tm); } else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) { /* abort success, but we have more timedout commands to abort */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "Continuing abort recovery for target %u\n", targ->tid); mprsas_send_abort(sc, tm, cm); } else { /* * we didn't get a command completion, so the abort * failed as far as we're concerned. escalate. */ mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "Abort failed for target %u, sending logical unit reset\n", targ->tid); mprsas_send_reset(sc, tm, MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET); } } #define MPR_ABORT_TIMEOUT 5 static int mprsas_send_abort(struct mpr_softc *sc, struct mpr_command *tm, struct mpr_command *cm) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mprsas_target *targ; int err; targ = cm->cm_targ; if (targ->handle == 0) { mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY, "%s null devhandle for target_id %d\n", __func__, cm->cm_ccb->ccb_h.target_id); return -1; } mprsas_log_command(cm, MPR_RECOVERY|MPR_INFO, "Aborting command %p\n", cm); req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; req->DevHandle = htole16(targ->handle); req->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; req->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK; /* XXX Need to handle invalid LUNs */ MPR_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_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; tm->cm_complete = mprsas_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, MPR_ABORT_TIMEOUT * hz, mprsas_tm_timeout, tm); targ->aborts++; mprsas_prepare_for_tm(sc, tm, targ, tm->cm_lun); err = mpr_map_command(sc, tm); if (err) mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY, "error %d sending abort for cm %p SMID %u\n", err, cm, req->TaskMID); return err; } static void mprsas_scsiio_timeout(void *data) { sbintime_t elapsed, now; union ccb *ccb; struct mpr_softc *sc; struct mpr_command *cm; struct mprsas_target *targ; cm = (struct mpr_command *)data; sc = cm->cm_sc; ccb = cm->cm_ccb; now = sbinuptime(); MPR_FUNCTRACE(sc); mtx_assert(&sc->mpr_mtx, MA_OWNED); mpr_dprint(sc, MPR_XINFO|MPR_RECOVERY, "Timeout checking cm %p\n", cm); /* * 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. */ mpr_intr_locked(sc); if (cm->cm_state != MPR_CM_STATE_INQUEUE) { mprsas_log_command(cm, MPR_XINFO, "SCSI command %p almost timed out\n", cm); return; } if (cm->cm_ccb == NULL) { mpr_dprint(sc, MPR_ERROR, "command timeout with NULL ccb\n"); return; } targ = cm->cm_targ; targ->timeouts++; elapsed = now - ccb->ccb_h.qos.sim_data; mprsas_log_command(cm, MPR_INFO|MPR_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); if (targ->encl_level_valid) { mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "At enclosure level %d, slot %d, connector name (%4s)\n", targ->encl_level, targ->encl_slot, targ->connector_name); } /* XXX first, check the firmware state, to see if it's still * operational. if not, do a diag reset. */ mprsas_set_ccbstatus(cm->cm_ccb, CAM_CMD_TIMEOUT); cm->cm_state = MPR_CM_STATE_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. */ mpr_dprint(sc, MPR_RECOVERY, "queued timedout cm %p for " "processing by tm %p\n", cm, targ->tm); } else if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) { /* start recovery by aborting the first timedout command */ mpr_dprint(sc, MPR_RECOVERY|MPR_INFO, "Sending abort to target %u for SMID %d\n", targ->tid, cm->cm_desc.Default.SMID); mpr_dprint(sc, MPR_RECOVERY, "timedout cm %p allocated tm %p\n", cm, targ->tm); mprsas_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. */ mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY, "timedout cm %p failed to allocate a tm\n", cm); } } /** * mprsas_build_nvme_unmap - Build Native NVMe DSM command equivalent * to SCSI Unmap. * Return 0 - for success, * 1 - to immediately return back the command with success status to CAM * negative value - to fallback to firmware path i.e. issue scsi unmap * to FW without any translation. */ static int mprsas_build_nvme_unmap(struct mpr_softc *sc, struct mpr_command *cm, union ccb *ccb, struct mprsas_target *targ) { Mpi26NVMeEncapsulatedRequest_t *req = NULL; struct ccb_scsiio *csio; struct unmap_parm_list *plist; struct nvme_dsm_range *nvme_dsm_ranges = NULL; struct nvme_command *c; int i, res; uint16_t ndesc, list_len, data_length; struct mpr_prp_page *prp_page_info; uint64_t nvme_dsm_ranges_dma_handle; csio = &ccb->csio; #if __FreeBSD_version >= 1100103 list_len = (scsiio_cdb_ptr(csio)[7] << 8 | scsiio_cdb_ptr(csio)[8]); #else if (csio->ccb_h.flags & CAM_CDB_POINTER) { list_len = (ccb->csio.cdb_io.cdb_ptr[7] << 8 | ccb->csio.cdb_io.cdb_ptr[8]); } else { list_len = (ccb->csio.cdb_io.cdb_bytes[7] << 8 | ccb->csio.cdb_io.cdb_bytes[8]); } #endif if (!list_len) { mpr_dprint(sc, MPR_ERROR, "Parameter list length is Zero\n"); return -EINVAL; } plist = malloc(csio->dxfer_len, M_MPR, M_ZERO|M_NOWAIT); if (!plist) { mpr_dprint(sc, MPR_ERROR, "Unable to allocate memory to " "save UNMAP data\n"); return -ENOMEM; } /* Copy SCSI unmap data to a local buffer */ bcopy(csio->data_ptr, plist, csio->dxfer_len); /* return back the unmap command to CAM with success status, * if number of descripts is zero. */ ndesc = be16toh(plist->unmap_blk_desc_data_len) >> 4; if (!ndesc) { mpr_dprint(sc, MPR_XINFO, "Number of descriptors in " "UNMAP cmd is Zero\n"); res = 1; goto out; } data_length = ndesc * sizeof(struct nvme_dsm_range); if (data_length > targ->MDTS) { mpr_dprint(sc, MPR_ERROR, "data length: %d is greater than " "Device's MDTS: %d\n", data_length, targ->MDTS); res = -EINVAL; goto out; } prp_page_info = mpr_alloc_prp_page(sc); KASSERT(prp_page_info != NULL, ("%s: There is no PRP Page for " "UNMAP command.\n", __func__)); /* * Insert the allocated PRP page into the command's PRP page list. This * will be freed when the command is freed. */ TAILQ_INSERT_TAIL(&cm->cm_prp_page_list, prp_page_info, prp_page_link); nvme_dsm_ranges = (struct nvme_dsm_range *)prp_page_info->prp_page; nvme_dsm_ranges_dma_handle = prp_page_info->prp_page_busaddr; bzero(nvme_dsm_ranges, data_length); /* Convert SCSI unmap's descriptor data to NVMe DSM specific Range data * for each descriptors contained in SCSI UNMAP data. */ for (i = 0; i < ndesc; i++) { nvme_dsm_ranges[i].length = htole32(be32toh(plist->desc[i].nlb)); nvme_dsm_ranges[i].starting_lba = htole64(be64toh(plist->desc[i].slba)); nvme_dsm_ranges[i].attributes = 0; } /* Build MPI2.6's NVMe Encapsulated Request Message */ req = (Mpi26NVMeEncapsulatedRequest_t *)cm->cm_req; bzero(req, sizeof(*req)); req->DevHandle = htole16(targ->handle); req->Function = MPI2_FUNCTION_NVME_ENCAPSULATED; req->Flags = MPI26_NVME_FLAGS_WRITE; req->ErrorResponseBaseAddress.High = htole32((uint32_t)((uint64_t)cm->cm_sense_busaddr >> 32)); req->ErrorResponseBaseAddress.Low = htole32(cm->cm_sense_busaddr); req->ErrorResponseAllocationLength = htole16(sizeof(struct nvme_completion)); req->EncapsulatedCommandLength = htole16(sizeof(struct nvme_command)); req->DataLength = htole32(data_length); /* Build NVMe DSM command */ c = (struct nvme_command *) req->NVMe_Command; c->opc = NVME_OPC_DATASET_MANAGEMENT; c->nsid = htole32(csio->ccb_h.target_lun + 1); c->cdw10 = htole32(ndesc - 1); c->cdw11 = htole32(NVME_DSM_ATTR_DEALLOCATE); cm->cm_length = data_length; cm->cm_data = NULL; cm->cm_complete = mprsas_scsiio_complete; cm->cm_complete_data = ccb; cm->cm_targ = targ; cm->cm_lun = csio->ccb_h.target_lun; cm->cm_ccb = ccb; cm->cm_desc.Default.RequestFlags = MPI26_REQ_DESCRIPT_FLAGS_PCIE_ENCAPSULATED; csio->ccb_h.qos.sim_data = sbinuptime(); #if __FreeBSD_version >= 1000029 callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0, mprsas_scsiio_timeout, cm, 0); #else //__FreeBSD_version < 1000029 callout_reset(&cm->cm_callout, (ccb->ccb_h.timeout * hz) / 1000, mprsas_scsiio_timeout, cm); #endif //__FreeBSD_version >= 1000029 targ->issued++; targ->outstanding++; TAILQ_INSERT_TAIL(&targ->commands, cm, cm_link); ccb->ccb_h.status |= CAM_SIM_QUEUED; mprsas_log_command(cm, MPR_XINFO, "%s cm %p ccb %p outstanding %u\n", __func__, cm, ccb, targ->outstanding); mpr_build_nvme_prp(sc, cm, req, (void *)(uintptr_t)nvme_dsm_ranges_dma_handle, 0, data_length); mpr_map_command(sc, cm); out: free(plist, M_MPR); return 0; } static void mprsas_action_scsiio(struct mprsas_softc *sassc, union ccb *ccb) { MPI2_SCSI_IO_REQUEST *req; struct ccb_scsiio *csio; struct mpr_softc *sc; struct mprsas_target *targ; struct mprsas_lun *lun; struct mpr_command *cm; uint8_t i, lba_byte, *ref_tag_addr, scsi_opcode; uint16_t eedp_flags; uint32_t mpi_control; int rc; sc = sassc->sc; MPR_FUNCTRACE(sc); mtx_assert(&sc->mpr_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]; mpr_dprint(sc, MPR_TRACE, "ccb %p target flag %x\n", ccb, targ->flags); if (targ->handle == 0x0) { mpr_dprint(sc, MPR_ERROR, "%s NULL handle for target %u\n", __func__, csio->ccb_h.target_id); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); xpt_done(ccb); return; } if (targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT) { mpr_dprint(sc, MPR_ERROR, "%s Raid component no SCSI IO " "supported %u\n", __func__, csio->ccb_h.target_id); mprsas_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 (mprsas_get_ccbstatus(ccb) != CAM_REQ_INPROG) { mpr_dprint(sc, MPR_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. */ if (targ->flags & MPRSAS_TARGET_INREMOVAL) { if (targ->devinfo == 0) mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); else mprsas_set_ccbstatus(ccb, CAM_SEL_TIMEOUT); xpt_done(ccb); return; } if ((sc->mpr_flags & MPR_FLAGS_SHUTDOWN) != 0) { mpr_dprint(sc, MPR_INFO, "%s shutting down\n", __func__); mprsas_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 & MPRSAS_TARGET_INRESET) { ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN; mpr_dprint(sc, MPR_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 = mpr_alloc_command(sc); if (cm == NULL || (sc->mpr_flags & MPR_FLAGS_DIAGRESET)) { if (cm != NULL) { mpr_free_command(sc, cm); } if ((sassc->flags & MPRSAS_QUEUE_FROZEN) == 0) { xpt_freeze_simq(sassc->sim, 1); sassc->flags |= MPRSAS_QUEUE_FROZEN; } ccb->ccb_h.status &= ~CAM_SIM_QUEUED; ccb->ccb_h.status |= CAM_REQUEUE_REQ; xpt_done(ccb); return; } /* For NVME device's issue UNMAP command directly to NVME drives by * constructing equivalent native NVMe DataSetManagement command. */ #if __FreeBSD_version >= 1100103 scsi_opcode = scsiio_cdb_ptr(csio)[0]; #else if (csio->ccb_h.flags & CAM_CDB_POINTER) scsi_opcode = csio->cdb_io.cdb_ptr[0]; else scsi_opcode = csio->cdb_io.cdb_bytes[0]; #endif if (scsi_opcode == UNMAP && targ->is_nvme && (csio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) { rc = mprsas_build_nvme_unmap(sc, cm, ccb, targ); if (rc == 1) { /* return command to CAM with success status */ mpr_free_command(sc, cm); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); xpt_done(ccb); return; } else if (!rc) /* Issued NVMe Encapsulated Request Message */ 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 = MPR_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 |= MPR_CM_FLAGS_DATAIN; break; case CAM_DIR_OUT: mpi_control = MPI2_SCSIIO_CONTROL_WRITE; cm->cm_flags |= MPR_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 (MPR_SET_LUN(req->LUN, csio->ccb_h.target_lun) != 0) { mpr_free_command(sc, cm); mprsas_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 { KASSERT(csio->cdb_len <= IOCDBLEN, ("cdb_len %d is greater than IOCDBLEN but CAM_CDB_POINTER " "is not set", csio->cdb_len)); 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); if (sc->mpr_flags & MPR_FLAGS_GEN35_IOC) { eedp_flags |= MPI25_SCSIIO_EEDPFLAGS_APPTAG_DISABLE_MODE; } 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 |= MPR_CM_FLAGS_USE_CCB; } else { cm->cm_data = NULL; } cm->cm_sge = &req->SGL; cm->cm_sglsize = (32 - 24) * 4; cm->cm_complete = mprsas_scsiio_complete; cm->cm_complete_data = ccb; cm->cm_targ = targ; cm->cm_lun = csio->ccb_h.target_lun; cm->cm_ccb = ccb; /* * If using FP desc type, need to set a bit in IoFlags (SCSI IO is 0) * and set descriptor type. */ if (targ->scsi_req_desc_type == MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO) { req->IoFlags |= MPI25_SCSIIO_IOFLAGS_FAST_PATH; cm->cm_desc.FastPathSCSIIO.RequestFlags = MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO; if (!sc->atomic_desc_capable) { cm->cm_desc.FastPathSCSIIO.DevHandle = htole16(targ->handle); } } else { cm->cm_desc.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO; if (!sc->atomic_desc_capable) cm->cm_desc.SCSIIO.DevHandle = htole16(targ->handle); } csio->ccb_h.qos.sim_data = sbinuptime(); #if __FreeBSD_version >= 1000029 callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0, mprsas_scsiio_timeout, cm, 0); #else //__FreeBSD_version < 1000029 callout_reset(&cm->cm_callout, (ccb->ccb_h.timeout * hz) / 1000, mprsas_scsiio_timeout, cm); #endif //__FreeBSD_version >= 1000029 targ->issued++; targ->outstanding++; TAILQ_INSERT_TAIL(&targ->commands, cm, cm_link); ccb->ccb_h.status |= CAM_SIM_QUEUED; mprsas_log_command(cm, MPR_XINFO, "%s cm %p ccb %p outstanding %u\n", __func__, cm, ccb, targ->outstanding); mpr_map_command(sc, cm); return; } /** * mpr_sc_failed_io_info - translated non-succesfull SCSI_IO request */ static void mpr_sc_failed_io_info(struct mpr_softc *sc, struct ccb_scsiio *csio, Mpi2SCSIIOReply_t *mpi_reply, struct mprsas_target *targ) { 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; char *desc_ioc_state = NULL; char *desc_scsi_status = NULL; u32 log_info = le32toh(mpi_reply->IOCLogInfo); if (log_info == 0x31170000) return; desc_ioc_state = mpr_describe_table(mpr_iocstatus_string, ioc_status); desc_scsi_status = mpr_describe_table(mpr_scsi_status_string, scsi_status); mpr_dprint(sc, MPR_XINFO, "\thandle(0x%04x), ioc_status(%s)(0x%04x)\n", le16toh(mpi_reply->DevHandle), desc_ioc_state, ioc_status); if (targ->encl_level_valid) { mpr_dprint(sc, MPR_XINFO, "At enclosure level %d, slot %d, " "connector name (%4s)\n", targ->encl_level, targ->encl_slot, targ->connector_name); } /* * We can add more detail about underflow data here * TO-DO */ mpr_dprint(sc, MPR_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->mpr_debug & MPR_XINFO && scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) { mpr_dprint(sc, MPR_XINFO, "-> Sense Buffer Data : Start :\n"); scsi_sense_print(csio); mpr_dprint(sc, MPR_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; mpr_dprint(sc, MPR_XINFO, "response code(0x%01x): %s\n", response_bytes[0], mpr_describe_table(mpr_scsi_taskmgmt_string, response_bytes[0])); } } /** mprsas_nvme_trans_status_code * * Convert Native NVMe command error status to * equivalent SCSI error status. * * Returns appropriate scsi_status */ static u8 mprsas_nvme_trans_status_code(uint16_t nvme_status, struct mpr_command *cm) { u8 status = MPI2_SCSI_STATUS_GOOD; int skey, asc, ascq; union ccb *ccb = cm->cm_complete_data; int returned_sense_len; uint8_t sct, sc; sct = NVME_STATUS_GET_SCT(nvme_status); sc = NVME_STATUS_GET_SC(nvme_status); status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_NO_SENSE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; switch (sct) { case NVME_SCT_GENERIC: switch (sc) { case NVME_SC_SUCCESS: status = MPI2_SCSI_STATUS_GOOD; skey = SSD_KEY_NO_SENSE; asc = SCSI_ASC_NO_SENSE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_INVALID_OPCODE: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_ILLEGAL_COMMAND; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_INVALID_FIELD: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_INVALID_CDB; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_DATA_TRANSFER_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_NO_SENSE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_ABORTED_POWER_LOSS: status = MPI2_SCSI_STATUS_TASK_ABORTED; skey = SSD_KEY_ABORTED_COMMAND; asc = SCSI_ASC_WARNING; ascq = SCSI_ASCQ_POWER_LOSS_EXPECTED; break; case NVME_SC_INTERNAL_DEVICE_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_HARDWARE_ERROR; asc = SCSI_ASC_INTERNAL_TARGET_FAILURE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_ABORTED_BY_REQUEST: case NVME_SC_ABORTED_SQ_DELETION: case NVME_SC_ABORTED_FAILED_FUSED: case NVME_SC_ABORTED_MISSING_FUSED: status = MPI2_SCSI_STATUS_TASK_ABORTED; skey = SSD_KEY_ABORTED_COMMAND; asc = SCSI_ASC_NO_SENSE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_INVALID_NAMESPACE_OR_FORMAT: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; ascq = SCSI_ASCQ_INVALID_LUN_ID; break; case NVME_SC_LBA_OUT_OF_RANGE: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_ILLEGAL_BLOCK; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_CAPACITY_EXCEEDED: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_NO_SENSE; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_NAMESPACE_NOT_READY: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_NOT_READY; asc = SCSI_ASC_LUN_NOT_READY; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; } break; case NVME_SCT_COMMAND_SPECIFIC: switch (sc) { case NVME_SC_INVALID_FORMAT: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_FORMAT_COMMAND_FAILED; ascq = SCSI_ASCQ_FORMAT_COMMAND_FAILED; break; case NVME_SC_CONFLICTING_ATTRIBUTES: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_INVALID_CDB; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; } break; case NVME_SCT_MEDIA_ERROR: switch (sc) { case NVME_SC_WRITE_FAULTS: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_UNRECOVERED_READ_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_UNRECOVERED_READ_ERROR; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_GUARD_CHECK_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED; ascq = SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED; break; case NVME_SC_APPLICATION_TAG_CHECK_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED; ascq = SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED; break; case NVME_SC_REFERENCE_TAG_CHECK_ERROR: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MEDIUM_ERROR; asc = SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED; ascq = SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED; break; case NVME_SC_COMPARE_FAILURE: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_MISCOMPARE; asc = SCSI_ASC_MISCOMPARE_DURING_VERIFY; ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; break; case NVME_SC_ACCESS_DENIED: status = MPI2_SCSI_STATUS_CHECK_CONDITION; skey = SSD_KEY_ILLEGAL_REQUEST; asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; ascq = SCSI_ASCQ_INVALID_LUN_ID; break; } break; } returned_sense_len = 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; scsi_set_sense_data(&ccb->csio.sense_data, SSD_TYPE_FIXED, 1, skey, asc, ascq, SSD_ELEM_NONE); ccb->ccb_h.status |= CAM_AUTOSNS_VALID; return status; } /** mprsas_complete_nvme_unmap * * Complete native NVMe command issued using NVMe Encapsulated * Request Message. */ static u8 mprsas_complete_nvme_unmap(struct mpr_softc *sc, struct mpr_command *cm) { Mpi26NVMeEncapsulatedErrorReply_t *mpi_reply; struct nvme_completion *nvme_completion = NULL; u8 scsi_status = MPI2_SCSI_STATUS_GOOD; mpi_reply =(Mpi26NVMeEncapsulatedErrorReply_t *)cm->cm_reply; if (le16toh(mpi_reply->ErrorResponseCount)){ nvme_completion = (struct nvme_completion *)cm->cm_sense; scsi_status = mprsas_nvme_trans_status_code( nvme_completion->status, cm); } return scsi_status; } static void mprsas_scsiio_complete(struct mpr_softc *sc, struct mpr_command *cm) { MPI2_SCSI_IO_REPLY *rep; union ccb *ccb; struct ccb_scsiio *csio; struct mprsas_softc *sassc; struct scsi_vpd_supported_page_list *vpd_list = NULL; u8 *TLR_bits, TLR_on, *scsi_cdb; int dir = 0, i; u16 alloc_len; struct mprsas_target *target; target_id_t target_id; MPR_FUNCTRACE(sc); mpr_dprint(sc, MPR_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->mpr_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 & MPR_CM_FLAGS_DATAIN) dir = BUS_DMASYNC_POSTREAD; else if (cm->cm_flags & MPR_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 (cm->cm_state == MPR_CM_STATE_TIMEDOUT) { TAILQ_REMOVE(&cm->cm_targ->timedout_commands, cm, cm_recovery); cm->cm_state = MPR_CM_STATE_BUSY; if (cm->cm_reply != NULL) mprsas_log_command(cm, MPR_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 mprsas_log_command(cm, MPR_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) mprsas_log_command(cm, MPR_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 mprsas_log_command(cm, MPR_RECOVERY, "completed cm %p ccb %p during recovery\n", cm, cm->cm_ccb); } else if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) { mprsas_log_command(cm, MPR_RECOVERY, "reset completed cm %p ccb %p\n", cm, cm->cm_ccb); } if ((cm->cm_flags & MPR_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. */ mprsas_set_ccbstatus(ccb, CAM_REQUEUE_REQ); /* * Currently the only error included in the mask is * MPR_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 & MPRSAS_QUEUE_FROZEN) == 0) { xpt_freeze_simq(sassc->sim, 1); sassc->flags |= MPRSAS_QUEUE_FROZEN; mpr_dprint(sc, MPR_XINFO, "Error sending command, " "freezing SIM queue\n"); } } /* * Point to the SCSI CDB, which is dependent on the CAM_CDB_POINTER * flag, and use it in a few places in the rest of this function for * convenience. Use the macro if available. */ #if __FreeBSD_version >= 1100103 scsi_cdb = scsiio_cdb_ptr(csio); #else if (csio->ccb_h.flags & CAM_CDB_POINTER) scsi_cdb = csio->cdb_io.cdb_ptr; else scsi_cdb = csio->cdb_io.cdb_bytes; #endif /* * 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 && (scsi_cdb[0] == START_STOP_UNIT)) { mpr_dprint(sc, MPR_INFO, "Decrementing SSU count.\n"); sc->SSU_refcount--; } /* Take the fast path to completion */ if (cm->cm_reply == NULL) { if (mprsas_get_ccbstatus(ccb) == CAM_REQ_INPROG) { if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) mprsas_set_ccbstatus(ccb, CAM_SCSI_BUS_RESET); else { mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); csio->scsi_status = SCSI_STATUS_OK; } if (sassc->flags & MPRSAS_QUEUE_FROZEN) { ccb->ccb_h.status |= CAM_RELEASE_SIMQ; sassc->flags &= ~MPRSAS_QUEUE_FROZEN; mpr_dprint(sc, MPR_XINFO, "Unfreezing SIM queue\n"); } } /* * There are two scenarios where the status won't be * CAM_REQ_CMP. The first is if MPR_CM_FLAGS_ERROR_MASK is * set, the second is in the MPR_FLAGS_DIAGRESET above. */ if (mprsas_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); } mpr_free_command(sc, cm); xpt_done(ccb); return; } target = &sassc->targets[target_id]; if (scsi_cdb[0] == UNMAP && target->is_nvme && (csio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) { rep->SCSIStatus = mprsas_complete_nvme_unmap(sc, cm); csio->scsi_status = rep->SCSIStatus; } mprsas_log_command(cm, MPR_XINFO, "ioc %x scsi %x state %x xfer %u\n", le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, le32toh(rep->TransferCount)); 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) mprsas_log_command(cm, MPR_XINFO, "recovered error\n"); /* Completion failed at the transport level. */ if (rep->SCSIState & (MPI2_SCSI_STATE_NO_SCSI_STATUS | MPI2_SCSI_STATE_TERMINATED)) { mprsas_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) { mprsas_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) == MPR_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)) { mprsas_set_ccbstatus(ccb, CAM_REQ_ABORTED); break; } /* Handle normal status and sense */ csio->scsi_status = rep->SCSIStatus; if (rep->SCSIStatus == MPI2_SCSI_STATUS_GOOD) mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); else mprsas_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 < csio->sense_len) csio->sense_resid = csio->sense_len - returned_sense_len; else csio->sense_resid = 0; sense_len = min(returned_sense_len, csio->sense_len - csio->sense_resid); bzero(&csio->sense_data, sizeof(csio->sense_data)); bcopy(cm->cm_sense, &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 ((scsi_cdb[0] == INQUIRY) && (scsi_cdb[1] & SI_EVPD) && (scsi_cdb[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)scsi_cdb[3] << 8) + scsi_cdb[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 ((scsi_cdb[0] == INQUIRY) && (csio->data_ptr != NULL) && ((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; mpr_dprint(sc, MPR_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) mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); else mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); break; case MPI2_IOCSTATUS_INVALID_SGL: mpr_print_scsiio_cmd(sc, cm); mprsas_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_state == MPR_CM_STATE_TIMEDOUT) mprsas_set_ccbstatus(ccb, CAM_CMD_TIMEOUT); else mprsas_set_ccbstatus(ccb, CAM_REQ_ABORTED); break; case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: /* resid is ignored for this condition */ csio->resid = 0; mprsas_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. */ mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); mpr_dprint(sc, MPR_INFO, "Controller reported %s tgt %u SMID %u loginfo %x\n", mpr_describe_table(mpr_iocstatus_string, le16toh(rep->IOCStatus) & MPI2_IOCSTATUS_MASK), target_id, cm->cm_desc.Default.SMID, le32toh(rep->IOCLogInfo)); mpr_dprint(sc, MPR_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: mprsas_log_command(cm, MPR_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; if (scsi_cdb[0] == UNMAP && target->is_nvme && (csio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_VADDR) mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); else mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); break; } mpr_sc_failed_io_info(sc, csio, rep, cm->cm_targ); if (sassc->flags & MPRSAS_QUEUE_FROZEN) { ccb->ccb_h.status |= CAM_RELEASE_SIMQ; sassc->flags &= ~MPRSAS_QUEUE_FROZEN; mpr_dprint(sc, MPR_XINFO, "Command completed, unfreezing SIM " "queue\n"); } if (mprsas_get_ccbstatus(ccb) != CAM_REQ_CMP) { ccb->ccb_h.status |= CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, /*count*/ 1); } mpr_free_command(sc, cm); xpt_done(ccb); } #if __FreeBSD_version >= 900026 static void mprsas_smpio_complete(struct mpr_softc *sc, struct mpr_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_ERROR, "%s: cm_flags = %#x on SMP " "request!\n", __func__, cm->cm_flags); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } rpl = (MPI2_SMP_PASSTHROUGH_REPLY *)cm->cm_reply; if (rpl == NULL) { mpr_dprint(sc, MPR_ERROR, "%s: NULL cm_reply!\n", __func__); mprsas_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) { mpr_dprint(sc, MPR_XINFO, "%s: IOCStatus %04x SASStatus %02x\n", __func__, le16toh(rpl->IOCStatus), rpl->SASStatus); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } mpr_dprint(sc, MPR_XINFO, "%s: SMP request to SAS address %#jx " "completed successfully\n", __func__, (uintmax_t)sasaddr); if (ccb->smpio.smp_response[2] == SMP_FR_ACCEPTED) mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); else mprsas_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); mpr_free_command(sc, cm); xpt_done(ccb); } static void mprsas_send_smpcmd(struct mprsas_softc *sassc, union ccb *ccb, uint64_t sasaddr) { struct mpr_command *cm; uint8_t *request, *response; MPI2_SMP_PASSTHROUGH_REQUEST *req; struct mpr_softc *sc; struct sglist *sg; int error; sc = sassc->sc; sg = NULL; error = 0; #if (__FreeBSD_version >= 1000028) || \ ((__FreeBSD_version >= 902001) && (__FreeBSD_version < 1000000)) switch (ccb->ccb_h.flags & CAM_DATA_MASK) { case CAM_DATA_PADDR: case CAM_DATA_SG_PADDR: /* * XXX We don't yet support physical addresses here. */ mpr_dprint(sc, MPR_ERROR, "%s: physical addresses not " "supported\n", __func__); mprsas_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)) { mpr_dprint(sc, MPR_ERROR, "%s: multiple request or " "response buffer segments not supported for SMP\n", __func__); mprsas_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: mprsas_set_ccbstatus(ccb, CAM_REQ_INVALID); xpt_done(ccb); return; } #else /* __FreeBSD_version < 1000028 */ /* * XXX We don't yet support physical addresses here. */ if (ccb->ccb_h.flags & (CAM_DATA_PHYS|CAM_SG_LIST_PHYS)) { mpr_dprint(sc, MPR_ERROR, "%s: physical addresses not " "supported\n", __func__); mprsas_set_ccbstatus(ccb, CAM_REQ_INVALID); xpt_done(ccb); return; } /* * If the user wants to send an S/G list, check to make sure they * have single buffers. */ if (ccb->ccb_h.flags & CAM_SCATTER_VALID) { /* * 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)) { mpr_dprint(sc, MPR_ERROR, "%s: multiple request or " "response buffer segments not supported for SMP\n", __func__); mprsas_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; } else { request = ccb->smpio.smp_request; response = ccb->smpio.smp_response; } #endif /* __FreeBSD_version < 1000028 */ cm = mpr_alloc_command(sc); if (cm == NULL) { mpr_dprint(sc, MPR_ERROR, "%s: cannot allocate command\n", __func__); mprsas_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; mpr_dprint(sc, MPR_XINFO, "%s: sending SMP request to SAS address " "%#jx\n", __func__, (uintmax_t)sasaddr); mpr_init_sge(cm, req, &req->SGL); /* * Set up a uio to pass into mpr_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 mpr_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 = mprsas_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 mpr_data_cb()) to handle the bidirectional * transfer. */ cm->cm_flags |= MPR_CM_FLAGS_USE_UIO | MPR_CM_FLAGS_SMP_PASS | MPR_CM_FLAGS_DATAIN | MPR_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 = mpr_map_command(sc, cm); if ((error != 0) && (error != EINPROGRESS)) { mpr_dprint(sc, MPR_ERROR, "%s: error %d returned from " "mpr_map_command()\n", __func__, error); goto bailout_error; } return; bailout_error: mpr_free_command(sc, cm); mprsas_set_ccbstatus(ccb, CAM_RESRC_UNAVAIL); xpt_done(ccb); return; } static void mprsas_action_smpio(struct mprsas_softc *sassc, union ccb *ccb) { struct mpr_softc *sc; struct mprsas_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) { mpr_dprint(sc, MPR_ERROR, "%s: target %d does not exist!\n", __func__, ccb->ccb_h.target_id); mprsas_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_MPR_PROBE struct mprsas_target *parent_target; #endif if (targ->parent_handle == 0x0) { mpr_dprint(sc, MPR_ERROR, "%s: handle %d does not have " "a valid parent handle!\n", __func__, targ->handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } #ifdef OLD_MPR_PROBE parent_target = mprsas_find_target_by_handle(sassc, 0, targ->parent_handle); if (parent_target == NULL) { mpr_dprint(sc, MPR_ERROR, "%s: handle %d does not have " "a valid parent target!\n", __func__, targ->handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } if ((parent_target->devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { mpr_dprint(sc, MPR_ERROR, "%s: handle %d parent %d " "does not have an SMP target!\n", __func__, targ->handle, parent_target->handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } sasaddr = parent_target->sasaddr; #else /* OLD_MPR_PROBE */ if ((targ->parent_devinfo & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0) { mpr_dprint(sc, MPR_ERROR, "%s: handle %d parent %d " "does not have an SMP target!\n", __func__, targ->handle, targ->parent_handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } if (targ->parent_sasaddr == 0x0) { mpr_dprint(sc, MPR_ERROR, "%s: handle %d parent handle " "%d does not have a valid SAS address!\n", __func__, targ->handle, targ->parent_handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } sasaddr = targ->parent_sasaddr; #endif /* OLD_MPR_PROBE */ } if (sasaddr == 0) { mpr_dprint(sc, MPR_INFO, "%s: unable to find SAS address for " "handle %d\n", __func__, targ->handle); mprsas_set_ccbstatus(ccb, CAM_DEV_NOT_THERE); goto bailout; } mprsas_send_smpcmd(sassc, ccb, sasaddr); return; bailout: xpt_done(ccb); } #endif //__FreeBSD_version >= 900026 static void mprsas_action_resetdev(struct mprsas_softc *sassc, union ccb *ccb) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; struct mpr_softc *sc; struct mpr_command *tm; struct mprsas_target *targ; MPR_FUNCTRACE(sassc->sc); mtx_assert(&sassc->sc->mpr_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 = mpr_alloc_command(sc); if (tm == NULL) { mpr_dprint(sc, MPR_ERROR, "command alloc failure in " "mprsas_action_resetdev\n"); mprsas_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->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 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_desc.HighPriority.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY; tm->cm_complete = mprsas_resetdev_complete; tm->cm_complete_data = ccb; mpr_dprint(sc, MPR_INFO, "%s: Sending reset for target ID %d\n", __func__, targ->tid); tm->cm_targ = targ; targ->flags |= MPRSAS_TARGET_INRESET; mpr_map_command(sc, tm); } static void mprsas_resetdev_complete(struct mpr_softc *sc, struct mpr_command *tm) { MPI2_SCSI_TASK_MANAGE_REPLY *resp; union ccb *ccb; MPR_FUNCTRACE(sc); mtx_assert(&sc->mpr_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { MPI2_SCSI_TASK_MANAGE_REQUEST *req; req = (MPI2_SCSI_TASK_MANAGE_REQUEST *)tm->cm_req; mpr_dprint(sc, MPR_ERROR, "%s: cm_flags = %#x for reset of " "handle %#04x! This should not happen!\n", __func__, tm->cm_flags, req->DevHandle); mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); goto bailout; } mpr_dprint(sc, MPR_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) { mprsas_set_ccbstatus(ccb, CAM_REQ_CMP); mprsas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, CAM_LUN_WILDCARD); } else mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); bailout: mprsas_free_tm(sc, tm); xpt_done(ccb); } static void mprsas_poll(struct cam_sim *sim) { struct mprsas_softc *sassc; sassc = cam_sim_softc(sim); if (sassc->sc->mpr_debug & MPR_TRACE) { /* frequent debug messages during a panic just slow * everything down too much. */ mpr_dprint(sassc->sc, MPR_XINFO, "%s clearing MPR_TRACE\n", __func__); sassc->sc->mpr_debug &= ~MPR_TRACE; } mpr_intr_locked(sassc->sc); } static void mprsas_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) { struct mpr_softc *sc; sc = (struct mpr_softc *)callback_arg; switch (code) { #if (__FreeBSD_version >= 1000006) || \ ((__FreeBSD_version >= 901503) && (__FreeBSD_version < 1000000)) case AC_ADVINFO_CHANGED: { struct mprsas_target *target; struct mprsas_softc *sassc; struct scsi_read_capacity_data_long rcap_buf; struct ccb_dev_advinfo cdai; struct mprsas_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; /* * See the comment in mpr_attach_sas() for a detailed * explanation. In these versions of FreeBSD we register * for all events and filter out the events that don't * apply to us. */ #if (__FreeBSD_version < 1000703) || \ ((__FreeBSD_version >= 1100000) && (__FreeBSD_version < 1100002)) if (xpt_path_path_id(path) != sassc->sim->path_id) break; #endif /* * 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 mprsas_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 mprsas_lun), M_MPR, M_NOWAIT | M_ZERO); if (lun == NULL) { mpr_dprint(sc, MPR_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; #if (__FreeBSD_version >= 1100061) || \ ((__FreeBSD_version >= 1001510) && (__FreeBSD_version < 1100000)) cdai.flags = CDAI_FLAG_NONE; #else cdai.flags = 0; #endif 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 ((mprsas_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; } #endif case AC_FOUND_DEVICE: { struct ccb_getdev *cgd; /* * See the comment in mpr_attach_sas() for a detailed * explanation. In these versions of FreeBSD we register * for all events and filter out the events that don't * apply to us. */ #if (__FreeBSD_version < 1000703) || \ ((__FreeBSD_version >= 1100000) && (__FreeBSD_version < 1100002)) if (xpt_path_path_id(path) != sc->sassc->sim->path_id) break; #endif cgd = arg; #if (__FreeBSD_version < 901503) || \ ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006)) mprsas_check_eedp(sc, path, cgd); #endif break; } default: break; } } #if (__FreeBSD_version < 901503) || \ ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006)) static void mprsas_check_eedp(struct mpr_softc *sc, struct cam_path *path, struct ccb_getdev *cgd) { struct mprsas_softc *sassc = sc->sassc; struct ccb_scsiio *csio; struct scsi_read_capacity_16 *scsi_cmd; struct scsi_read_capacity_eedp *rcap_buf; path_id_t pathid; target_id_t targetid; lun_id_t lunid; union ccb *ccb; struct cam_path *local_path; struct mprsas_target *target; struct mprsas_lun *lun; uint8_t found_lun; char path_str[64]; pathid = cam_sim_path(sassc->sim); targetid = xpt_path_target_id(path); lunid = xpt_path_lun_id(path); KASSERT(targetid < sassc->maxtargets, ("Target %d out of bounds in " "mprsas_check_eedp\n", targetid)); target = &sassc->targets[targetid]; if (target->handle == 0x0) return; /* * Determine if the device is EEDP capable. * * If this flag is set in the inquiry data, the device supports * protection information, and must support the 16 byte read capacity * command, otherwise continue without sending read cap 16. */ if ((cgd->inq_data.spc3_flags & SPC3_SID_PROTECT) == 0) return; /* * Issue a READ CAPACITY 16 command. This info is used to determine if * the LUN is formatted for EEDP support. */ ccb = xpt_alloc_ccb_nowait(); if (ccb == NULL) { mpr_dprint(sc, MPR_ERROR, "Unable to alloc CCB for EEDP " "support.\n"); return; } if (xpt_create_path(&local_path, xpt_periph, pathid, targetid, lunid) != CAM_REQ_CMP) { mpr_dprint(sc, MPR_ERROR, "Unable to create path for EEDP " "support.\n"); xpt_free_ccb(ccb); return; } /* * If LUN is already in list, don't create a new one. */ found_lun = FALSE; SLIST_FOREACH(lun, &target->luns, lun_link) { if (lun->lun_id == lunid) { found_lun = TRUE; break; } } if (!found_lun) { lun = malloc(sizeof(struct mprsas_lun), M_MPR, M_NOWAIT | M_ZERO); if (lun == NULL) { mpr_dprint(sc, MPR_ERROR, "Unable to alloc LUN for " "EEDP support.\n"); xpt_free_path(local_path); xpt_free_ccb(ccb); return; } lun->lun_id = lunid; SLIST_INSERT_HEAD(&target->luns, lun, lun_link); } xpt_path_string(local_path, path_str, sizeof(path_str)); mpr_dprint(sc, MPR_INFO, "Sending read cap: path %s handle %d\n", path_str, target->handle); /* * Issue a READ CAPACITY 16 command for the LUN. The * mprsas_read_cap_done function will load the read cap info into the * LUN struct. */ rcap_buf = malloc(sizeof(struct scsi_read_capacity_eedp), M_MPR, M_NOWAIT | M_ZERO); if (rcap_buf == NULL) { mpr_dprint(sc, MPR_ERROR, "Unable to alloc read capacity " "buffer for EEDP support.\n"); xpt_free_path(ccb->ccb_h.path); xpt_free_ccb(ccb); return; } xpt_setup_ccb(&ccb->ccb_h, local_path, CAM_PRIORITY_XPT); csio = &ccb->csio; csio->ccb_h.func_code = XPT_SCSI_IO; csio->ccb_h.flags = CAM_DIR_IN; csio->ccb_h.retry_count = 4; csio->ccb_h.cbfcnp = mprsas_read_cap_done; csio->ccb_h.timeout = 60000; csio->data_ptr = (uint8_t *)rcap_buf; csio->dxfer_len = sizeof(struct scsi_read_capacity_eedp); csio->sense_len = MPR_SENSE_LEN; csio->cdb_len = sizeof(*scsi_cmd); csio->tag_action = MSG_SIMPLE_Q_TAG; scsi_cmd = (struct scsi_read_capacity_16 *)&csio->cdb_io.cdb_bytes; bzero(scsi_cmd, sizeof(*scsi_cmd)); scsi_cmd->opcode = 0x9E; scsi_cmd->service_action = SRC16_SERVICE_ACTION; ((uint8_t *)scsi_cmd)[13] = sizeof(struct scsi_read_capacity_eedp); ccb->ccb_h.ppriv_ptr1 = sassc; xpt_action(ccb); } static void mprsas_read_cap_done(struct cam_periph *periph, union ccb *done_ccb) { struct mprsas_softc *sassc; struct mprsas_target *target; struct mprsas_lun *lun; struct scsi_read_capacity_eedp *rcap_buf; if (done_ccb == NULL) return; /* Driver need to release devq, it Scsi command is * generated by driver internally. * Currently there is a single place where driver * calls scsi command internally. In future if driver * calls more scsi command internally, it needs to release * devq internally, since those command will not go back to * cam_periph. */ if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) ) { done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; xpt_release_devq(done_ccb->ccb_h.path, /*count*/ 1, /*run_queue*/TRUE); } rcap_buf = (struct scsi_read_capacity_eedp *)done_ccb->csio.data_ptr; /* * Get the LUN ID for the path and look it up in the LUN list for the * target. */ sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1; KASSERT(done_ccb->ccb_h.target_id < sassc->maxtargets, ("Target %d out " "of bounds in mprsas_read_cap_done\n", done_ccb->ccb_h.target_id)); target = &sassc->targets[done_ccb->ccb_h.target_id]; SLIST_FOREACH(lun, &target->luns, lun_link) { if (lun->lun_id != done_ccb->ccb_h.target_lun) continue; /* * Got the LUN in the target's LUN list. Fill it in with EEDP * info. If the READ CAP 16 command had some SCSI error (common * if command is not supported), mark the lun as not supporting * EEDP and set the block size to 0. */ if ((mprsas_get_ccbstatus(done_ccb) != CAM_REQ_CMP) || (done_ccb->csio.scsi_status != SCSI_STATUS_OK)) { lun->eedp_formatted = FALSE; lun->eedp_block_size = 0; break; } if (rcap_buf->protect & 0x01) { mpr_dprint(sassc->sc, MPR_INFO, "LUN %d for target ID " "%d is formatted for EEDP support.\n", done_ccb->ccb_h.target_lun, done_ccb->ccb_h.target_id); lun->eedp_formatted = TRUE; lun->eedp_block_size = scsi_4btoul(rcap_buf->length); } break; } // Finished with this CCB and path. free(rcap_buf, M_MPR); xpt_free_path(done_ccb->ccb_h.path); xpt_free_ccb(done_ccb); } #endif /* (__FreeBSD_version < 901503) || \ ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000006)) */ void mprsas_prepare_for_tm(struct mpr_softc *sc, struct mpr_command *tm, struct mprsas_target *target, lun_id_t lun_id) { union ccb *ccb; path_id_t path_id; /* * 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. */ 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 |= MPRSAS_TARGET_INRESET; } } } int mprsas_startup(struct mpr_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; mprsas_send_portenable(sc); return (0); } static int mprsas_send_portenable(struct mpr_softc *sc) { MPI2_PORT_ENABLE_REQUEST *request; struct mpr_command *cm; MPR_FUNCTRACE(sc); if ((cm = mpr_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 = mprsas_portenable_complete; cm->cm_data = NULL; cm->cm_sge = NULL; mpr_map_command(sc, cm); mpr_dprint(sc, MPR_XINFO, "mpr_send_portenable finished cm %p req %p complete %p\n", cm, cm->cm_req, cm->cm_complete); return (0); } static void mprsas_portenable_complete(struct mpr_softc *sc, struct mpr_command *cm) { MPI2_PORT_ENABLE_REPLY *reply; struct mprsas_softc *sassc; MPR_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 & MPR_CM_FLAGS_ERROR_MASK) != 0) { mpr_dprint(sc, MPR_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) mpr_dprint(sc, MPR_FAULT, "Portenable NULL reply\n"); else if (le16toh(reply->IOCStatus & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS) mpr_dprint(sc, MPR_FAULT, "Portenable failed\n"); mpr_free_command(sc, cm); /* * 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. */ sc->wait_for_port_enable = 0; sc->port_enable_complete = 1; wakeup(&sc->port_enable_complete); mprsas_startup_decrement(sassc); } int mprsas_check_id(struct mprsas_softc *sassc, int id) { struct mpr_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 mprsas_realloc_targets(struct mpr_softc *sc, int maxtargets) { struct mprsas_softc *sassc; struct mprsas_lun *lun, *lun_tmp; struct mprsas_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_MPR); } } free(sassc->targets, M_MPR); sassc->targets = malloc(sizeof(struct mprsas_target) * maxtargets, M_MPR, M_WAITOK|M_ZERO); if (!sassc->targets) { panic("%s failed to alloc targets with error %d\n", __func__, ENOMEM); } }