| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Driver for Broadcom MPI3 Storage Controllers |
| * |
| * Copyright (C) 2017-2023 Broadcom Inc. |
| * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com) |
| * |
| */ |
| |
| #include "mpi3mr.h" |
| #include <linux/idr.h> |
| |
| /* global driver scop variables */ |
| LIST_HEAD(mrioc_list); |
| DEFINE_SPINLOCK(mrioc_list_lock); |
| static DEFINE_IDA(mrioc_ida); |
| static int warn_non_secure_ctlr; |
| atomic64_t event_counter; |
| |
| MODULE_AUTHOR(MPI3MR_DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(MPI3MR_DRIVER_DESC); |
| MODULE_LICENSE(MPI3MR_DRIVER_LICENSE); |
| MODULE_VERSION(MPI3MR_DRIVER_VERSION); |
| |
| /* Module parameters*/ |
| int prot_mask = -1; |
| module_param(prot_mask, int, 0); |
| MODULE_PARM_DESC(prot_mask, "Host protection capabilities mask, def=0x07"); |
| |
| static int prot_guard_mask = 3; |
| module_param(prot_guard_mask, int, 0); |
| MODULE_PARM_DESC(prot_guard_mask, " Host protection guard mask, def=3"); |
| static int logging_level; |
| module_param(logging_level, int, 0); |
| MODULE_PARM_DESC(logging_level, |
| " bits for enabling additional logging info (default=0)"); |
| static int max_sgl_entries = MPI3MR_DEFAULT_SGL_ENTRIES; |
| module_param(max_sgl_entries, int, 0444); |
| MODULE_PARM_DESC(max_sgl_entries, |
| "Preferred max number of SG entries to be used for a single I/O\n" |
| "The actual value will be determined by the driver\n" |
| "(Minimum=256, Maximum=2048, default=256)"); |
| |
| /* Forward declarations*/ |
| static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event, |
| struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx); |
| |
| #define MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION (0xFFFF) |
| |
| #define MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH (0xFFFE) |
| |
| /** |
| * mpi3mr_host_tag_for_scmd - Get host tag for a scmd |
| * @mrioc: Adapter instance reference |
| * @scmd: SCSI command reference |
| * |
| * Calculate the host tag based on block tag for a given scmd. |
| * |
| * Return: Valid host tag or MPI3MR_HOSTTAG_INVALID. |
| */ |
| static u16 mpi3mr_host_tag_for_scmd(struct mpi3mr_ioc *mrioc, |
| struct scsi_cmnd *scmd) |
| { |
| struct scmd_priv *priv = NULL; |
| u32 unique_tag; |
| u16 host_tag, hw_queue; |
| |
| unique_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd)); |
| |
| hw_queue = blk_mq_unique_tag_to_hwq(unique_tag); |
| if (hw_queue >= mrioc->num_op_reply_q) |
| return MPI3MR_HOSTTAG_INVALID; |
| host_tag = blk_mq_unique_tag_to_tag(unique_tag); |
| |
| if (WARN_ON(host_tag >= mrioc->max_host_ios)) |
| return MPI3MR_HOSTTAG_INVALID; |
| |
| priv = scsi_cmd_priv(scmd); |
| /*host_tag 0 is invalid hence incrementing by 1*/ |
| priv->host_tag = host_tag + 1; |
| priv->scmd = scmd; |
| priv->in_lld_scope = 1; |
| priv->req_q_idx = hw_queue; |
| priv->meta_chain_idx = -1; |
| priv->chain_idx = -1; |
| priv->meta_sg_valid = 0; |
| return priv->host_tag; |
| } |
| |
| /** |
| * mpi3mr_scmd_from_host_tag - Get SCSI command from host tag |
| * @mrioc: Adapter instance reference |
| * @host_tag: Host tag |
| * @qidx: Operational queue index |
| * |
| * Identify the block tag from the host tag and queue index and |
| * retrieve associated scsi command using scsi_host_find_tag(). |
| * |
| * Return: SCSI command reference or NULL. |
| */ |
| static struct scsi_cmnd *mpi3mr_scmd_from_host_tag( |
| struct mpi3mr_ioc *mrioc, u16 host_tag, u16 qidx) |
| { |
| struct scsi_cmnd *scmd = NULL; |
| struct scmd_priv *priv = NULL; |
| u32 unique_tag = host_tag - 1; |
| |
| if (WARN_ON(host_tag > mrioc->max_host_ios)) |
| goto out; |
| |
| unique_tag |= (qidx << BLK_MQ_UNIQUE_TAG_BITS); |
| |
| scmd = scsi_host_find_tag(mrioc->shost, unique_tag); |
| if (scmd) { |
| priv = scsi_cmd_priv(scmd); |
| if (!priv->in_lld_scope) |
| scmd = NULL; |
| } |
| out: |
| return scmd; |
| } |
| |
| /** |
| * mpi3mr_clear_scmd_priv - Cleanup SCSI command private date |
| * @mrioc: Adapter instance reference |
| * @scmd: SCSI command reference |
| * |
| * Invalidate the SCSI command private data to mark the command |
| * is not in LLD scope anymore. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_clear_scmd_priv(struct mpi3mr_ioc *mrioc, |
| struct scsi_cmnd *scmd) |
| { |
| struct scmd_priv *priv = NULL; |
| |
| priv = scsi_cmd_priv(scmd); |
| |
| if (WARN_ON(priv->in_lld_scope == 0)) |
| return; |
| priv->host_tag = MPI3MR_HOSTTAG_INVALID; |
| priv->req_q_idx = 0xFFFF; |
| priv->scmd = NULL; |
| priv->in_lld_scope = 0; |
| priv->meta_sg_valid = 0; |
| if (priv->chain_idx >= 0) { |
| clear_bit(priv->chain_idx, mrioc->chain_bitmap); |
| priv->chain_idx = -1; |
| } |
| if (priv->meta_chain_idx >= 0) { |
| clear_bit(priv->meta_chain_idx, mrioc->chain_bitmap); |
| priv->meta_chain_idx = -1; |
| } |
| } |
| |
| static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, |
| struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc); |
| static void mpi3mr_fwevt_worker(struct work_struct *work); |
| |
| /** |
| * mpi3mr_fwevt_free - firmware event memory dealloctor |
| * @r: k reference pointer of the firmware event |
| * |
| * Free firmware event memory when no reference. |
| */ |
| static void mpi3mr_fwevt_free(struct kref *r) |
| { |
| kfree(container_of(r, struct mpi3mr_fwevt, ref_count)); |
| } |
| |
| /** |
| * mpi3mr_fwevt_get - k reference incrementor |
| * @fwevt: Firmware event reference |
| * |
| * Increment firmware event reference count. |
| */ |
| static void mpi3mr_fwevt_get(struct mpi3mr_fwevt *fwevt) |
| { |
| kref_get(&fwevt->ref_count); |
| } |
| |
| /** |
| * mpi3mr_fwevt_put - k reference decrementor |
| * @fwevt: Firmware event reference |
| * |
| * decrement firmware event reference count. |
| */ |
| static void mpi3mr_fwevt_put(struct mpi3mr_fwevt *fwevt) |
| { |
| kref_put(&fwevt->ref_count, mpi3mr_fwevt_free); |
| } |
| |
| /** |
| * mpi3mr_alloc_fwevt - Allocate firmware event |
| * @len: length of firmware event data to allocate |
| * |
| * Allocate firmware event with required length and initialize |
| * the reference counter. |
| * |
| * Return: firmware event reference. |
| */ |
| static struct mpi3mr_fwevt *mpi3mr_alloc_fwevt(int len) |
| { |
| struct mpi3mr_fwevt *fwevt; |
| |
| fwevt = kzalloc(sizeof(*fwevt) + len, GFP_ATOMIC); |
| if (!fwevt) |
| return NULL; |
| |
| kref_init(&fwevt->ref_count); |
| return fwevt; |
| } |
| |
| /** |
| * mpi3mr_fwevt_add_to_list - Add firmware event to the list |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Add the given firmware event to the firmware event list. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| unsigned long flags; |
| |
| if (!mrioc->fwevt_worker_thread) |
| return; |
| |
| spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
| /* get fwevt reference count while adding it to fwevt_list */ |
| mpi3mr_fwevt_get(fwevt); |
| INIT_LIST_HEAD(&fwevt->list); |
| list_add_tail(&fwevt->list, &mrioc->fwevt_list); |
| INIT_WORK(&fwevt->work, mpi3mr_fwevt_worker); |
| /* get fwevt reference count while enqueueing it to worker queue */ |
| mpi3mr_fwevt_get(fwevt); |
| queue_work(mrioc->fwevt_worker_thread, &fwevt->work); |
| spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); |
| } |
| |
| /** |
| * mpi3mr_hdb_trigger_data_event - Add hdb trigger data event to |
| * the list |
| * @mrioc: Adapter instance reference |
| * @event_data: Event data |
| * |
| * Add the given hdb trigger data event to the firmware event |
| * list. |
| * |
| * Return: Nothing. |
| */ |
| void mpi3mr_hdb_trigger_data_event(struct mpi3mr_ioc *mrioc, |
| struct trigger_event_data *event_data) |
| { |
| struct mpi3mr_fwevt *fwevt; |
| u16 sz = sizeof(*event_data); |
| |
| fwevt = mpi3mr_alloc_fwevt(sz); |
| if (!fwevt) { |
| ioc_warn(mrioc, "failed to queue hdb trigger data event\n"); |
| return; |
| } |
| |
| fwevt->mrioc = mrioc; |
| fwevt->event_id = MPI3MR_DRIVER_EVENT_PROCESS_TRIGGER; |
| fwevt->send_ack = 0; |
| fwevt->process_evt = 1; |
| fwevt->evt_ctx = 0; |
| fwevt->event_data_size = sz; |
| memcpy(fwevt->event_data, event_data, sz); |
| |
| mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
| } |
| |
| /** |
| * mpi3mr_fwevt_del_from_list - Delete firmware event from list |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Delete the given firmware event from the firmware event list. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_fwevt_del_from_list(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
| if (!list_empty(&fwevt->list)) { |
| list_del_init(&fwevt->list); |
| /* |
| * Put fwevt reference count after |
| * removing it from fwevt_list |
| */ |
| mpi3mr_fwevt_put(fwevt); |
| } |
| spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); |
| } |
| |
| /** |
| * mpi3mr_dequeue_fwevt - Dequeue firmware event from the list |
| * @mrioc: Adapter instance reference |
| * |
| * Dequeue a firmware event from the firmware event list. |
| * |
| * Return: firmware event. |
| */ |
| static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt( |
| struct mpi3mr_ioc *mrioc) |
| { |
| unsigned long flags; |
| struct mpi3mr_fwevt *fwevt = NULL; |
| |
| spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
| if (!list_empty(&mrioc->fwevt_list)) { |
| fwevt = list_first_entry(&mrioc->fwevt_list, |
| struct mpi3mr_fwevt, list); |
| list_del_init(&fwevt->list); |
| /* |
| * Put fwevt reference count after |
| * removing it from fwevt_list |
| */ |
| mpi3mr_fwevt_put(fwevt); |
| } |
| spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); |
| |
| return fwevt; |
| } |
| |
| /** |
| * mpi3mr_cancel_work - cancel firmware event |
| * @fwevt: fwevt object which needs to be canceled |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt) |
| { |
| /* |
| * Wait on the fwevt to complete. If this returns 1, then |
| * the event was never executed. |
| * |
| * If it did execute, we wait for it to finish, and the put will |
| * happen from mpi3mr_process_fwevt() |
| */ |
| if (cancel_work_sync(&fwevt->work)) { |
| /* |
| * Put fwevt reference count after |
| * dequeuing it from worker queue |
| */ |
| mpi3mr_fwevt_put(fwevt); |
| /* |
| * Put fwevt reference count to neutralize |
| * kref_init increment |
| */ |
| mpi3mr_fwevt_put(fwevt); |
| } |
| } |
| |
| /** |
| * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list |
| * @mrioc: Adapter instance reference |
| * |
| * Flush all pending firmware events from the firmware event |
| * list. |
| * |
| * Return: Nothing. |
| */ |
| void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc) |
| { |
| struct mpi3mr_fwevt *fwevt = NULL; |
| |
| if ((list_empty(&mrioc->fwevt_list) && !mrioc->current_event) || |
| !mrioc->fwevt_worker_thread) |
| return; |
| |
| while ((fwevt = mpi3mr_dequeue_fwevt(mrioc))) |
| mpi3mr_cancel_work(fwevt); |
| |
| if (mrioc->current_event) { |
| fwevt = mrioc->current_event; |
| /* |
| * Don't call cancel_work_sync() API for the |
| * fwevt work if the controller reset is |
| * get called as part of processing the |
| * same fwevt work (or) when worker thread is |
| * waiting for device add/remove APIs to complete. |
| * Otherwise we will see deadlock. |
| */ |
| if (current_work() == &fwevt->work || fwevt->pending_at_sml) { |
| fwevt->discard = 1; |
| return; |
| } |
| |
| mpi3mr_cancel_work(fwevt); |
| } |
| } |
| |
| /** |
| * mpi3mr_queue_qd_reduction_event - Queue TG QD reduction event |
| * @mrioc: Adapter instance reference |
| * @tg: Throttle group information pointer |
| * |
| * Accessor to queue on synthetically generated driver event to |
| * the event worker thread, the driver event will be used to |
| * reduce the QD of all VDs in the TG from the worker thread. |
| * |
| * Return: None. |
| */ |
| static void mpi3mr_queue_qd_reduction_event(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_throttle_group_info *tg) |
| { |
| struct mpi3mr_fwevt *fwevt; |
| u16 sz = sizeof(struct mpi3mr_throttle_group_info *); |
| |
| /* |
| * If the QD reduction event is already queued due to throttle and if |
| * the QD is not restored through device info change event |
| * then dont queue further reduction events |
| */ |
| if (tg->fw_qd != tg->modified_qd) |
| return; |
| |
| fwevt = mpi3mr_alloc_fwevt(sz); |
| if (!fwevt) { |
| ioc_warn(mrioc, "failed to queue TG QD reduction event\n"); |
| return; |
| } |
| *(struct mpi3mr_throttle_group_info **)fwevt->event_data = tg; |
| fwevt->mrioc = mrioc; |
| fwevt->event_id = MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION; |
| fwevt->send_ack = 0; |
| fwevt->process_evt = 1; |
| fwevt->evt_ctx = 0; |
| fwevt->event_data_size = sz; |
| tg->modified_qd = max_t(u16, (tg->fw_qd * tg->qd_reduction) / 10, 8); |
| |
| dprint_event_bh(mrioc, "qd reduction event queued for tg_id(%d)\n", |
| tg->id); |
| mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
| } |
| |
| /** |
| * mpi3mr_invalidate_devhandles -Invalidate device handles |
| * @mrioc: Adapter instance reference |
| * |
| * Invalidate the device handles in the target device structures |
| * . Called post reset prior to reinitializing the controller. |
| * |
| * Return: Nothing. |
| */ |
| void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| struct mpi3mr_stgt_priv_data *tgt_priv; |
| |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
| tgtdev->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| tgt_priv = tgtdev->starget->hostdata; |
| tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| tgt_priv->io_throttle_enabled = 0; |
| tgt_priv->io_divert = 0; |
| tgt_priv->throttle_group = NULL; |
| tgt_priv->wslen = 0; |
| if (tgtdev->host_exposed) |
| atomic_set(&tgt_priv->block_io, 1); |
| } |
| } |
| } |
| |
| /** |
| * mpi3mr_print_scmd - print individual SCSI command |
| * @rq: Block request |
| * @data: Adapter instance reference |
| * |
| * Print the SCSI command details if it is in LLD scope. |
| * |
| * Return: true always. |
| */ |
| static bool mpi3mr_print_scmd(struct request *rq, void *data) |
| { |
| struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; |
| struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
| struct scmd_priv *priv = NULL; |
| |
| if (scmd) { |
| priv = scsi_cmd_priv(scmd); |
| if (!priv->in_lld_scope) |
| goto out; |
| |
| ioc_info(mrioc, "%s :Host Tag = %d, qid = %d\n", |
| __func__, priv->host_tag, priv->req_q_idx + 1); |
| scsi_print_command(scmd); |
| } |
| |
| out: |
| return(true); |
| } |
| |
| /** |
| * mpi3mr_flush_scmd - Flush individual SCSI command |
| * @rq: Block request |
| * @data: Adapter instance reference |
| * |
| * Return the SCSI command to the upper layers if it is in LLD |
| * scope. |
| * |
| * Return: true always. |
| */ |
| |
| static bool mpi3mr_flush_scmd(struct request *rq, void *data) |
| { |
| struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; |
| struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
| struct scmd_priv *priv = NULL; |
| |
| if (scmd) { |
| priv = scsi_cmd_priv(scmd); |
| if (!priv->in_lld_scope) |
| goto out; |
| |
| if (priv->meta_sg_valid) |
| dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), |
| scsi_prot_sg_count(scmd), scmd->sc_data_direction); |
| mpi3mr_clear_scmd_priv(mrioc, scmd); |
| scsi_dma_unmap(scmd); |
| scmd->result = DID_RESET << 16; |
| scsi_print_command(scmd); |
| scsi_done(scmd); |
| mrioc->flush_io_count++; |
| } |
| |
| out: |
| return(true); |
| } |
| |
| /** |
| * mpi3mr_count_dev_pending - Count commands pending for a lun |
| * @rq: Block request |
| * @data: SCSI device reference |
| * |
| * This is an iterator function called for each SCSI command in |
| * a host and if the command is pending in the LLD for the |
| * specific device(lun) then device specific pending I/O counter |
| * is updated in the device structure. |
| * |
| * Return: true always. |
| */ |
| |
| static bool mpi3mr_count_dev_pending(struct request *rq, void *data) |
| { |
| struct scsi_device *sdev = (struct scsi_device *)data; |
| struct mpi3mr_sdev_priv_data *sdev_priv_data = sdev->hostdata; |
| struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
| struct scmd_priv *priv; |
| |
| if (scmd) { |
| priv = scsi_cmd_priv(scmd); |
| if (!priv->in_lld_scope) |
| goto out; |
| if (scmd->device == sdev) |
| sdev_priv_data->pend_count++; |
| } |
| |
| out: |
| return true; |
| } |
| |
| /** |
| * mpi3mr_count_tgt_pending - Count commands pending for target |
| * @rq: Block request |
| * @data: SCSI target reference |
| * |
| * This is an iterator function called for each SCSI command in |
| * a host and if the command is pending in the LLD for the |
| * specific target then target specific pending I/O counter is |
| * updated in the target structure. |
| * |
| * Return: true always. |
| */ |
| |
| static bool mpi3mr_count_tgt_pending(struct request *rq, void *data) |
| { |
| struct scsi_target *starget = (struct scsi_target *)data; |
| struct mpi3mr_stgt_priv_data *stgt_priv_data = starget->hostdata; |
| struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
| struct scmd_priv *priv; |
| |
| if (scmd) { |
| priv = scsi_cmd_priv(scmd); |
| if (!priv->in_lld_scope) |
| goto out; |
| if (scmd->device && (scsi_target(scmd->device) == starget)) |
| stgt_priv_data->pend_count++; |
| } |
| |
| out: |
| return true; |
| } |
| |
| /** |
| * mpi3mr_flush_host_io - Flush host I/Os |
| * @mrioc: Adapter instance reference |
| * |
| * Flush all of the pending I/Os by calling |
| * blk_mq_tagset_busy_iter() for each possible tag. This is |
| * executed post controller reset |
| * |
| * Return: Nothing. |
| */ |
| void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc) |
| { |
| struct Scsi_Host *shost = mrioc->shost; |
| |
| mrioc->flush_io_count = 0; |
| ioc_info(mrioc, "%s :Flushing Host I/O cmds post reset\n", __func__); |
| blk_mq_tagset_busy_iter(&shost->tag_set, |
| mpi3mr_flush_scmd, (void *)mrioc); |
| ioc_info(mrioc, "%s :Flushed %d Host I/O cmds\n", __func__, |
| mrioc->flush_io_count); |
| } |
| |
| /** |
| * mpi3mr_flush_cmds_for_unrecovered_controller - Flush all pending cmds |
| * @mrioc: Adapter instance reference |
| * |
| * This function waits for currently running IO poll threads to |
| * exit and then flushes all host I/Os and any internal pending |
| * cmds. This is executed after controller is marked as |
| * unrecoverable. |
| * |
| * Return: Nothing. |
| */ |
| void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc) |
| { |
| struct Scsi_Host *shost = mrioc->shost; |
| int i; |
| |
| if (!mrioc->unrecoverable) |
| return; |
| |
| if (mrioc->op_reply_qinfo) { |
| for (i = 0; i < mrioc->num_queues; i++) { |
| while (atomic_read(&mrioc->op_reply_qinfo[i].in_use)) |
| udelay(500); |
| atomic_set(&mrioc->op_reply_qinfo[i].pend_ios, 0); |
| } |
| } |
| mrioc->flush_io_count = 0; |
| blk_mq_tagset_busy_iter(&shost->tag_set, |
| mpi3mr_flush_scmd, (void *)mrioc); |
| mpi3mr_flush_delayed_cmd_lists(mrioc); |
| mpi3mr_flush_drv_cmds(mrioc); |
| } |
| |
| /** |
| * mpi3mr_alloc_tgtdev - target device allocator |
| * |
| * Allocate target device instance and initialize the reference |
| * count |
| * |
| * Return: target device instance. |
| */ |
| static struct mpi3mr_tgt_dev *mpi3mr_alloc_tgtdev(void) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| |
| tgtdev = kzalloc(sizeof(*tgtdev), GFP_ATOMIC); |
| if (!tgtdev) |
| return NULL; |
| kref_init(&tgtdev->ref_count); |
| return tgtdev; |
| } |
| |
| /** |
| * mpi3mr_tgtdev_add_to_list -Add tgtdevice to the list |
| * @mrioc: Adapter instance reference |
| * @tgtdev: Target device |
| * |
| * Add the target device to the target device list |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_tgtdev_add_to_list(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_tgt_dev *tgtdev) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| mpi3mr_tgtdev_get(tgtdev); |
| INIT_LIST_HEAD(&tgtdev->list); |
| list_add_tail(&tgtdev->list, &mrioc->tgtdev_list); |
| tgtdev->state = MPI3MR_DEV_CREATED; |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| } |
| |
| /** |
| * mpi3mr_tgtdev_del_from_list -Delete tgtdevice from the list |
| * @mrioc: Adapter instance reference |
| * @tgtdev: Target device |
| * @must_delete: Must delete the target device from the list irrespective |
| * of the device state. |
| * |
| * Remove the target device from the target device list |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_tgtdev_del_from_list(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_tgt_dev *tgtdev, bool must_delete) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| if ((tgtdev->state == MPI3MR_DEV_REMOVE_HS_STARTED) || (must_delete == true)) { |
| if (!list_empty(&tgtdev->list)) { |
| list_del_init(&tgtdev->list); |
| tgtdev->state = MPI3MR_DEV_DELETED; |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| } |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| } |
| |
| /** |
| * __mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle |
| * @mrioc: Adapter instance reference |
| * @handle: Device handle |
| * |
| * Accessor to retrieve target device from the device handle. |
| * Non Lock version |
| * |
| * Return: Target device reference. |
| */ |
| static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_handle( |
| struct mpi3mr_ioc *mrioc, u16 handle) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| |
| assert_spin_locked(&mrioc->tgtdev_lock); |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) |
| if (tgtdev->dev_handle == handle) |
| goto found_tgtdev; |
| return NULL; |
| |
| found_tgtdev: |
| mpi3mr_tgtdev_get(tgtdev); |
| return tgtdev; |
| } |
| |
| /** |
| * mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle |
| * @mrioc: Adapter instance reference |
| * @handle: Device handle |
| * |
| * Accessor to retrieve target device from the device handle. |
| * Lock version |
| * |
| * Return: Target device reference. |
| */ |
| struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_handle( |
| struct mpi3mr_ioc *mrioc, u16 handle) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| return tgtdev; |
| } |
| |
| /** |
| * __mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persist ID |
| * @mrioc: Adapter instance reference |
| * @persist_id: Persistent ID |
| * |
| * Accessor to retrieve target device from the Persistent ID. |
| * Non Lock version |
| * |
| * Return: Target device reference. |
| */ |
| static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_perst_id( |
| struct mpi3mr_ioc *mrioc, u16 persist_id) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| |
| assert_spin_locked(&mrioc->tgtdev_lock); |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) |
| if (tgtdev->perst_id == persist_id) |
| goto found_tgtdev; |
| return NULL; |
| |
| found_tgtdev: |
| mpi3mr_tgtdev_get(tgtdev); |
| return tgtdev; |
| } |
| |
| /** |
| * mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persistent ID |
| * @mrioc: Adapter instance reference |
| * @persist_id: Persistent ID |
| * |
| * Accessor to retrieve target device from the Persistent ID. |
| * Lock version |
| * |
| * Return: Target device reference. |
| */ |
| static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_perst_id( |
| struct mpi3mr_ioc *mrioc, u16 persist_id) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id); |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| return tgtdev; |
| } |
| |
| /** |
| * __mpi3mr_get_tgtdev_from_tgtpriv -Get tgtdev from tgt private |
| * @mrioc: Adapter instance reference |
| * @tgt_priv: Target private data |
| * |
| * Accessor to return target device from the target private |
| * data. Non Lock version |
| * |
| * Return: Target device reference. |
| */ |
| static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv( |
| struct mpi3mr_ioc *mrioc, struct mpi3mr_stgt_priv_data *tgt_priv) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| |
| assert_spin_locked(&mrioc->tgtdev_lock); |
| tgtdev = tgt_priv->tgt_dev; |
| if (tgtdev) |
| mpi3mr_tgtdev_get(tgtdev); |
| return tgtdev; |
| } |
| |
| /** |
| * mpi3mr_set_io_divert_for_all_vd_in_tg -set divert for TG VDs |
| * @mrioc: Adapter instance reference |
| * @tg: Throttle group information pointer |
| * @divert_value: 1 or 0 |
| * |
| * Accessor to set io_divert flag for each device associated |
| * with the given throttle group with the given value. |
| * |
| * Return: None. |
| */ |
| static void mpi3mr_set_io_divert_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_throttle_group_info *tg, u8 divert_value) |
| { |
| unsigned long flags; |
| struct mpi3mr_tgt_dev *tgtdev; |
| struct mpi3mr_stgt_priv_data *tgt_priv; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| tgt_priv = tgtdev->starget->hostdata; |
| if (tgt_priv->throttle_group == tg) |
| tgt_priv->io_divert = divert_value; |
| } |
| } |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| } |
| |
| /** |
| * mpi3mr_print_device_event_notice - print notice related to post processing of |
| * device event after controller reset. |
| * |
| * @mrioc: Adapter instance reference |
| * @device_add: true for device add event and false for device removal event |
| * |
| * Return: None. |
| */ |
| void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, |
| bool device_add) |
| { |
| ioc_notice(mrioc, "Device %s was in progress before the reset and\n", |
| (device_add ? "addition" : "removal")); |
| ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n"); |
| ioc_notice(mrioc, "are matched with attached devices for correctness\n"); |
| } |
| |
| /** |
| * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers |
| * @mrioc: Adapter instance reference |
| * @tgtdev: Target device structure |
| * |
| * Checks whether the device is exposed to upper layers and if it |
| * is then remove the device from upper layers by calling |
| * scsi_remove_target(). |
| * |
| * Return: 0 on success, non zero on failure. |
| */ |
| void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_tgt_dev *tgtdev) |
| { |
| struct mpi3mr_stgt_priv_data *tgt_priv; |
| |
| ioc_info(mrioc, "%s :Removing handle(0x%04x), wwid(0x%016llx)\n", |
| __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| tgt_priv = tgtdev->starget->hostdata; |
| atomic_set(&tgt_priv->block_io, 0); |
| tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| } |
| |
| if (!mrioc->sas_transport_enabled || (tgtdev->dev_type != |
| MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl) { |
| if (tgtdev->starget) { |
| if (mrioc->current_event) |
| mrioc->current_event->pending_at_sml = 1; |
| scsi_remove_target(&tgtdev->starget->dev); |
| tgtdev->host_exposed = 0; |
| if (mrioc->current_event) { |
| mrioc->current_event->pending_at_sml = 0; |
| if (mrioc->current_event->discard) { |
| mpi3mr_print_device_event_notice(mrioc, |
| false); |
| return; |
| } |
| } |
| } |
| } else |
| mpi3mr_remove_tgtdev_from_sas_transport(mrioc, tgtdev); |
| mpi3mr_global_trigger(mrioc, |
| MPI3_DRIVER2_GLOBALTRIGGER_DEVICE_REMOVAL_ENABLED); |
| |
| ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n", |
| __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); |
| } |
| |
| /** |
| * mpi3mr_report_tgtdev_to_host - Expose device to upper layers |
| * @mrioc: Adapter instance reference |
| * @perst_id: Persistent ID of the device |
| * |
| * Checks whether the device can be exposed to upper layers and |
| * if it is not then expose the device to upper layers by |
| * calling scsi_scan_target(). |
| * |
| * Return: 0 on success, non zero on failure. |
| */ |
| static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc, |
| u16 perst_id) |
| { |
| int retval = 0; |
| struct mpi3mr_tgt_dev *tgtdev; |
| |
| if (mrioc->reset_in_progress || mrioc->pci_err_recovery) |
| return -1; |
| |
| tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id); |
| if (!tgtdev) { |
| retval = -1; |
| goto out; |
| } |
| if (tgtdev->is_hidden || tgtdev->host_exposed) { |
| retval = -1; |
| goto out; |
| } |
| if (!mrioc->sas_transport_enabled || (tgtdev->dev_type != |
| MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl){ |
| tgtdev->host_exposed = 1; |
| if (mrioc->current_event) |
| mrioc->current_event->pending_at_sml = 1; |
| scsi_scan_target(&mrioc->shost->shost_gendev, |
| mrioc->scsi_device_channel, tgtdev->perst_id, |
| SCAN_WILD_CARD, SCSI_SCAN_INITIAL); |
| if (!tgtdev->starget) |
| tgtdev->host_exposed = 0; |
| if (mrioc->current_event) { |
| mrioc->current_event->pending_at_sml = 0; |
| if (mrioc->current_event->discard) { |
| mpi3mr_print_device_event_notice(mrioc, true); |
| goto out; |
| } |
| } |
| } else |
| mpi3mr_report_tgtdev_to_sas_transport(mrioc, tgtdev); |
| out: |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| |
| return retval; |
| } |
| |
| /** |
| * mpi3mr_change_queue_depth- Change QD callback handler |
| * @sdev: SCSI device reference |
| * @q_depth: Queue depth |
| * |
| * Validate and limit QD and call scsi_change_queue_depth. |
| * |
| * Return: return value of scsi_change_queue_depth |
| */ |
| static int mpi3mr_change_queue_depth(struct scsi_device *sdev, |
| int q_depth) |
| { |
| struct scsi_target *starget = scsi_target(sdev); |
| struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
| int retval = 0; |
| |
| if (!sdev->tagged_supported) |
| q_depth = 1; |
| if (q_depth > shost->can_queue) |
| q_depth = shost->can_queue; |
| else if (!q_depth) |
| q_depth = MPI3MR_DEFAULT_SDEV_QD; |
| retval = scsi_change_queue_depth(sdev, q_depth); |
| sdev->max_queue_depth = sdev->queue_depth; |
| |
| return retval; |
| } |
| |
| static void mpi3mr_configure_nvme_dev(struct mpi3mr_tgt_dev *tgt_dev, |
| struct queue_limits *lim) |
| { |
| u8 pgsz = tgt_dev->dev_spec.pcie_inf.pgsz ? : MPI3MR_DEFAULT_PGSZEXP; |
| |
| lim->max_hw_sectors = tgt_dev->dev_spec.pcie_inf.mdts / 512; |
| lim->virt_boundary_mask = (1 << pgsz) - 1; |
| } |
| |
| static void mpi3mr_configure_tgt_dev(struct mpi3mr_tgt_dev *tgt_dev, |
| struct queue_limits *lim) |
| { |
| if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_PCIE && |
| (tgt_dev->dev_spec.pcie_inf.dev_info & |
| MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == |
| MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) |
| mpi3mr_configure_nvme_dev(tgt_dev, lim); |
| } |
| |
| /** |
| * mpi3mr_update_sdev - Update SCSI device information |
| * @sdev: SCSI device reference |
| * @data: target device reference |
| * |
| * This is an iterator function called for each SCSI device in a |
| * target to update the target specific information into each |
| * SCSI device. |
| * |
| * Return: Nothing. |
| */ |
| static void |
| mpi3mr_update_sdev(struct scsi_device *sdev, void *data) |
| { |
| struct mpi3mr_tgt_dev *tgtdev; |
| struct queue_limits lim; |
| |
| tgtdev = (struct mpi3mr_tgt_dev *)data; |
| if (!tgtdev) |
| return; |
| |
| mpi3mr_change_queue_depth(sdev, tgtdev->q_depth); |
| |
| lim = queue_limits_start_update(sdev->request_queue); |
| mpi3mr_configure_tgt_dev(tgtdev, &lim); |
| WARN_ON_ONCE(queue_limits_commit_update(sdev->request_queue, &lim)); |
| } |
| |
| /** |
| * mpi3mr_refresh_tgtdevs - Refresh target device exposure |
| * @mrioc: Adapter instance reference |
| * |
| * This is executed post controller reset to identify any |
| * missing devices during reset and remove from the upper layers |
| * or expose any newly detected device to the upper layers. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_refresh_tgtdevs(struct mpi3mr_ioc *mrioc) |
| { |
| struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; |
| struct mpi3mr_stgt_priv_data *tgt_priv; |
| |
| dprint_reset(mrioc, "refresh target devices: check for removals\n"); |
| list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, |
| list) { |
| if (((tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) || |
| tgtdev->is_hidden) && |
| tgtdev->host_exposed && tgtdev->starget && |
| tgtdev->starget->hostdata) { |
| tgt_priv = tgtdev->starget->hostdata; |
| tgt_priv->dev_removed = 1; |
| atomic_set(&tgt_priv->block_io, 0); |
| } |
| } |
| |
| list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, |
| list) { |
| if (tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) { |
| dprint_reset(mrioc, "removing target device with perst_id(%d)\n", |
| tgtdev->perst_id); |
| if (tgtdev->host_exposed) |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, true); |
| mpi3mr_tgtdev_put(tgtdev); |
| } else if (tgtdev->is_hidden & tgtdev->host_exposed) { |
| dprint_reset(mrioc, "hiding target device with perst_id(%d)\n", |
| tgtdev->perst_id); |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| } |
| } |
| |
| tgtdev = NULL; |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
| if ((tgtdev->dev_handle != MPI3MR_INVALID_DEV_HANDLE) && |
| !tgtdev->is_hidden) { |
| if (!tgtdev->host_exposed) |
| mpi3mr_report_tgtdev_to_host(mrioc, |
| tgtdev->perst_id); |
| else if (tgtdev->starget) |
| starget_for_each_device(tgtdev->starget, |
| (void *)tgtdev, mpi3mr_update_sdev); |
| } |
| } |
| } |
| |
| /** |
| * mpi3mr_update_tgtdev - DevStatusChange evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @tgtdev: Target device internal structure |
| * @dev_pg0: New device page0 |
| * @is_added: Flag to indicate the device is just added |
| * |
| * Update the information from the device page0 into the driver |
| * cached target device structure. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_tgt_dev *tgtdev, struct mpi3_device_page0 *dev_pg0, |
| bool is_added) |
| { |
| u16 flags = 0; |
| struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
| struct mpi3mr_enclosure_node *enclosure_dev = NULL; |
| u8 prot_mask = 0; |
| |
| tgtdev->perst_id = le16_to_cpu(dev_pg0->persistent_id); |
| tgtdev->dev_handle = le16_to_cpu(dev_pg0->dev_handle); |
| tgtdev->dev_type = dev_pg0->device_form; |
| tgtdev->io_unit_port = dev_pg0->io_unit_port; |
| tgtdev->encl_handle = le16_to_cpu(dev_pg0->enclosure_handle); |
| tgtdev->parent_handle = le16_to_cpu(dev_pg0->parent_dev_handle); |
| tgtdev->slot = le16_to_cpu(dev_pg0->slot); |
| tgtdev->q_depth = le16_to_cpu(dev_pg0->queue_depth); |
| tgtdev->wwid = le64_to_cpu(dev_pg0->wwid); |
| tgtdev->devpg0_flag = le16_to_cpu(dev_pg0->flags); |
| |
| if (tgtdev->encl_handle) |
| enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc, |
| tgtdev->encl_handle); |
| if (enclosure_dev) |
| tgtdev->enclosure_logical_id = le64_to_cpu( |
| enclosure_dev->pg0.enclosure_logical_id); |
| |
| flags = tgtdev->devpg0_flag; |
| |
| tgtdev->is_hidden = (flags & MPI3_DEVICE0_FLAGS_HIDDEN); |
| |
| if (is_added == true) |
| tgtdev->io_throttle_enabled = |
| (flags & MPI3_DEVICE0_FLAGS_IO_THROTTLING_REQUIRED) ? 1 : 0; |
| |
| switch (flags & MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_MASK) { |
| case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_256_LB: |
| tgtdev->wslen = MPI3MR_WRITE_SAME_MAX_LEN_256_BLKS; |
| break; |
| case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_2048_LB: |
| tgtdev->wslen = MPI3MR_WRITE_SAME_MAX_LEN_2048_BLKS; |
| break; |
| case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_NO_LIMIT: |
| default: |
| tgtdev->wslen = 0; |
| break; |
| } |
| |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
| tgtdev->starget->hostdata; |
| scsi_tgt_priv_data->perst_id = tgtdev->perst_id; |
| scsi_tgt_priv_data->dev_handle = tgtdev->dev_handle; |
| scsi_tgt_priv_data->dev_type = tgtdev->dev_type; |
| scsi_tgt_priv_data->io_throttle_enabled = |
| tgtdev->io_throttle_enabled; |
| if (is_added == true) |
| atomic_set(&scsi_tgt_priv_data->block_io, 0); |
| scsi_tgt_priv_data->wslen = tgtdev->wslen; |
| } |
| |
| switch (dev_pg0->access_status) { |
| case MPI3_DEVICE0_ASTATUS_NO_ERRORS: |
| case MPI3_DEVICE0_ASTATUS_PREPARE: |
| case MPI3_DEVICE0_ASTATUS_NEEDS_INITIALIZATION: |
| case MPI3_DEVICE0_ASTATUS_DEVICE_MISSING_DELAY: |
| break; |
| default: |
| tgtdev->is_hidden = 1; |
| break; |
| } |
| |
| switch (tgtdev->dev_type) { |
| case MPI3_DEVICE_DEVFORM_SAS_SATA: |
| { |
| struct mpi3_device0_sas_sata_format *sasinf = |
| &dev_pg0->device_specific.sas_sata_format; |
| u16 dev_info = le16_to_cpu(sasinf->device_info); |
| |
| tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info; |
| tgtdev->dev_spec.sas_sata_inf.sas_address = |
| le64_to_cpu(sasinf->sas_address); |
| tgtdev->dev_spec.sas_sata_inf.phy_id = sasinf->phy_num; |
| tgtdev->dev_spec.sas_sata_inf.attached_phy_id = |
| sasinf->attached_phy_identifier; |
| if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) != |
| MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE) |
| tgtdev->is_hidden = 1; |
| else if (!(dev_info & (MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET | |
| MPI3_SAS_DEVICE_INFO_SSP_TARGET))) |
| tgtdev->is_hidden = 1; |
| |
| if (((tgtdev->devpg0_flag & |
| MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED) |
| && (tgtdev->devpg0_flag & |
| MPI3_DEVICE0_FLAGS_ATT_METHOD_VIRTUAL)) || |
| (tgtdev->parent_handle == 0xFFFF)) |
| tgtdev->non_stl = 1; |
| if (tgtdev->dev_spec.sas_sata_inf.hba_port) |
| tgtdev->dev_spec.sas_sata_inf.hba_port->port_id = |
| dev_pg0->io_unit_port; |
| break; |
| } |
| case MPI3_DEVICE_DEVFORM_PCIE: |
| { |
| struct mpi3_device0_pcie_format *pcieinf = |
| &dev_pg0->device_specific.pcie_format; |
| u16 dev_info = le16_to_cpu(pcieinf->device_info); |
| |
| tgtdev->dev_spec.pcie_inf.dev_info = dev_info; |
| tgtdev->dev_spec.pcie_inf.capb = |
| le32_to_cpu(pcieinf->capabilities); |
| tgtdev->dev_spec.pcie_inf.mdts = MPI3MR_DEFAULT_MDTS; |
| /* 2^12 = 4096 */ |
| tgtdev->dev_spec.pcie_inf.pgsz = 12; |
| if (dev_pg0->access_status == MPI3_DEVICE0_ASTATUS_NO_ERRORS) { |
| tgtdev->dev_spec.pcie_inf.mdts = |
| le32_to_cpu(pcieinf->maximum_data_transfer_size); |
| tgtdev->dev_spec.pcie_inf.pgsz = pcieinf->page_size; |
| tgtdev->dev_spec.pcie_inf.reset_to = |
| max_t(u8, pcieinf->controller_reset_to, |
| MPI3MR_INTADMCMD_TIMEOUT); |
| tgtdev->dev_spec.pcie_inf.abort_to = |
| max_t(u8, pcieinf->nvme_abort_to, |
| MPI3MR_INTADMCMD_TIMEOUT); |
| } |
| if (tgtdev->dev_spec.pcie_inf.mdts > (1024 * 1024)) |
| tgtdev->dev_spec.pcie_inf.mdts = (1024 * 1024); |
| if (((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) != |
| MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) && |
| ((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) != |
| MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_SCSI_DEVICE)) |
| tgtdev->is_hidden = 1; |
| tgtdev->non_stl = 1; |
| if (!mrioc->shost) |
| break; |
| prot_mask = scsi_host_get_prot(mrioc->shost); |
| if (prot_mask & SHOST_DIX_TYPE0_PROTECTION) { |
| scsi_host_set_prot(mrioc->shost, prot_mask & 0x77); |
| ioc_info(mrioc, |
| "%s : Disabling DIX0 prot capability\n", __func__); |
| ioc_info(mrioc, |
| "because HBA does not support DIX0 operation on NVME drives\n"); |
| } |
| break; |
| } |
| case MPI3_DEVICE_DEVFORM_VD: |
| { |
| struct mpi3_device0_vd_format *vdinf = |
| &dev_pg0->device_specific.vd_format; |
| struct mpi3mr_throttle_group_info *tg = NULL; |
| u16 vdinf_io_throttle_group = |
| le16_to_cpu(vdinf->io_throttle_group); |
| |
| tgtdev->dev_spec.vd_inf.state = vdinf->vd_state; |
| if (vdinf->vd_state == MPI3_DEVICE0_VD_STATE_OFFLINE) |
| tgtdev->is_hidden = 1; |
| tgtdev->non_stl = 1; |
| tgtdev->dev_spec.vd_inf.tg_id = vdinf_io_throttle_group; |
| tgtdev->dev_spec.vd_inf.tg_high = |
| le16_to_cpu(vdinf->io_throttle_group_high) * 2048; |
| tgtdev->dev_spec.vd_inf.tg_low = |
| le16_to_cpu(vdinf->io_throttle_group_low) * 2048; |
| if (vdinf_io_throttle_group < mrioc->num_io_throttle_group) { |
| tg = mrioc->throttle_groups + vdinf_io_throttle_group; |
| tg->id = vdinf_io_throttle_group; |
| tg->high = tgtdev->dev_spec.vd_inf.tg_high; |
| tg->low = tgtdev->dev_spec.vd_inf.tg_low; |
| tg->qd_reduction = |
| tgtdev->dev_spec.vd_inf.tg_qd_reduction; |
| if (is_added == true) |
| tg->fw_qd = tgtdev->q_depth; |
| tg->modified_qd = tgtdev->q_depth; |
| } |
| tgtdev->dev_spec.vd_inf.tg = tg; |
| if (scsi_tgt_priv_data) |
| scsi_tgt_priv_data->throttle_group = tg; |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * mpi3mr_devstatuschg_evt_bh - DevStatusChange evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event information. |
| * |
| * Process Device status Change event and based on device's new |
| * information, either expose the device to the upper layers, or |
| * remove the device from upper layers. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_devstatuschg_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| u16 dev_handle = 0; |
| u8 uhide = 0, delete = 0, cleanup = 0; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| struct mpi3_event_data_device_status_change *evtdata = |
| (struct mpi3_event_data_device_status_change *)fwevt->event_data; |
| |
| dev_handle = le16_to_cpu(evtdata->dev_handle); |
| ioc_info(mrioc, |
| "%s :device status change: handle(0x%04x): reason code(0x%x)\n", |
| __func__, dev_handle, evtdata->reason_code); |
| switch (evtdata->reason_code) { |
| case MPI3_EVENT_DEV_STAT_RC_HIDDEN: |
| delete = 1; |
| break; |
| case MPI3_EVENT_DEV_STAT_RC_NOT_HIDDEN: |
| uhide = 1; |
| break; |
| case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: |
| delete = 1; |
| cleanup = 1; |
| break; |
| default: |
| ioc_info(mrioc, "%s :Unhandled reason code(0x%x)\n", __func__, |
| evtdata->reason_code); |
| break; |
| } |
| |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); |
| if (!tgtdev) |
| goto out; |
| if (uhide) { |
| tgtdev->is_hidden = 0; |
| if (!tgtdev->host_exposed) |
| mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id); |
| } |
| |
| if (delete) |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| |
| if (cleanup) { |
| mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false); |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| |
| out: |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| |
| /** |
| * mpi3mr_devinfochg_evt_bh - DeviceInfoChange evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @dev_pg0: New device page0 |
| * |
| * Process Device Info Change event and based on device's new |
| * information, either expose the device to the upper layers, or |
| * remove the device from upper layers or update the details of |
| * the device. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_devinfochg_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3_device_page0 *dev_pg0) |
| { |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| u16 dev_handle = 0, perst_id = 0; |
| |
| perst_id = le16_to_cpu(dev_pg0->persistent_id); |
| dev_handle = le16_to_cpu(dev_pg0->dev_handle); |
| ioc_info(mrioc, |
| "%s :Device info change: handle(0x%04x): persist_id(0x%x)\n", |
| __func__, dev_handle, perst_id); |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); |
| if (!tgtdev) |
| goto out; |
| mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, false); |
| if (!tgtdev->is_hidden && !tgtdev->host_exposed) |
| mpi3mr_report_tgtdev_to_host(mrioc, perst_id); |
| if (tgtdev->is_hidden && tgtdev->host_exposed) |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| if (!tgtdev->is_hidden && tgtdev->host_exposed && tgtdev->starget) |
| starget_for_each_device(tgtdev->starget, (void *)tgtdev, |
| mpi3mr_update_sdev); |
| out: |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| |
| /** |
| * mpi3mr_free_enclosure_list - release enclosures |
| * @mrioc: Adapter instance reference |
| * |
| * Free memory allocated during encloure add. |
| * |
| * Return nothing. |
| */ |
| void mpi3mr_free_enclosure_list(struct mpi3mr_ioc *mrioc) |
| { |
| struct mpi3mr_enclosure_node *enclosure_dev, *enclosure_dev_next; |
| |
| list_for_each_entry_safe(enclosure_dev, |
| enclosure_dev_next, &mrioc->enclosure_list, list) { |
| list_del(&enclosure_dev->list); |
| kfree(enclosure_dev); |
| } |
| } |
| |
| /** |
| * mpi3mr_enclosure_find_by_handle - enclosure search by handle |
| * @mrioc: Adapter instance reference |
| * @handle: Firmware device handle of the enclosure |
| * |
| * This searches for enclosure device based on handle, then returns the |
| * enclosure object. |
| * |
| * Return: Enclosure object reference or NULL |
| */ |
| struct mpi3mr_enclosure_node *mpi3mr_enclosure_find_by_handle( |
| struct mpi3mr_ioc *mrioc, u16 handle) |
| { |
| struct mpi3mr_enclosure_node *enclosure_dev, *r = NULL; |
| |
| list_for_each_entry(enclosure_dev, &mrioc->enclosure_list, list) { |
| if (le16_to_cpu(enclosure_dev->pg0.enclosure_handle) != handle) |
| continue; |
| r = enclosure_dev; |
| goto out; |
| } |
| out: |
| return r; |
| } |
| |
| /** |
| * mpi3mr_process_trigger_data_event_bh - Process trigger event |
| * data |
| * @mrioc: Adapter instance reference |
| * @event_data: Event data |
| * |
| * This function releases diage buffers or issues diag fault |
| * based on trigger conditions |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_process_trigger_data_event_bh(struct mpi3mr_ioc *mrioc, |
| struct trigger_event_data *event_data) |
| { |
| struct diag_buffer_desc *trace_hdb = event_data->trace_hdb; |
| struct diag_buffer_desc *fw_hdb = event_data->fw_hdb; |
| unsigned long flags; |
| int retval = 0; |
| u8 trigger_type = event_data->trigger_type; |
| union mpi3mr_trigger_data *trigger_data = |
| &event_data->trigger_specific_data; |
| |
| if (event_data->snapdump) { |
| if (trace_hdb) |
| mpi3mr_set_trigger_data_in_hdb(trace_hdb, trigger_type, |
| trigger_data, 1); |
| if (fw_hdb) |
| mpi3mr_set_trigger_data_in_hdb(fw_hdb, trigger_type, |
| trigger_data, 1); |
| mpi3mr_soft_reset_handler(mrioc, |
| MPI3MR_RESET_FROM_TRIGGER, 1); |
| return; |
| } |
| |
| if (trace_hdb) { |
| retval = mpi3mr_issue_diag_buf_release(mrioc, trace_hdb); |
| if (!retval) { |
| mpi3mr_set_trigger_data_in_hdb(trace_hdb, trigger_type, |
| trigger_data, 1); |
| } |
| spin_lock_irqsave(&mrioc->trigger_lock, flags); |
| mrioc->trace_release_trigger_active = false; |
| spin_unlock_irqrestore(&mrioc->trigger_lock, flags); |
| } |
| if (fw_hdb) { |
| retval = mpi3mr_issue_diag_buf_release(mrioc, fw_hdb); |
| if (!retval) { |
| mpi3mr_set_trigger_data_in_hdb(fw_hdb, trigger_type, |
| trigger_data, 1); |
| } |
| spin_lock_irqsave(&mrioc->trigger_lock, flags); |
| mrioc->fw_release_trigger_active = false; |
| spin_unlock_irqrestore(&mrioc->trigger_lock, flags); |
| } |
| } |
| |
| /** |
| * mpi3mr_encldev_add_chg_evt_debug - debug for enclosure event |
| * @mrioc: Adapter instance reference |
| * @encl_pg0: Enclosure page 0. |
| * @is_added: Added event or not |
| * |
| * Return nothing. |
| */ |
| static void mpi3mr_encldev_add_chg_evt_debug(struct mpi3mr_ioc *mrioc, |
| struct mpi3_enclosure_page0 *encl_pg0, u8 is_added) |
| { |
| char *reason_str = NULL; |
| |
| if (!(mrioc->logging_level & MPI3_DEBUG_EVENT_WORK_TASK)) |
| return; |
| |
| if (is_added) |
| reason_str = "enclosure added"; |
| else |
| reason_str = "enclosure dev status changed"; |
| |
| ioc_info(mrioc, |
| "%s: handle(0x%04x), enclosure logical id(0x%016llx)\n", |
| reason_str, le16_to_cpu(encl_pg0->enclosure_handle), |
| (unsigned long long)le64_to_cpu(encl_pg0->enclosure_logical_id)); |
| ioc_info(mrioc, |
| "number of slots(%d), port(%d), flags(0x%04x), present(%d)\n", |
| le16_to_cpu(encl_pg0->num_slots), encl_pg0->io_unit_port, |
| le16_to_cpu(encl_pg0->flags), |
| ((le16_to_cpu(encl_pg0->flags) & |
| MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4)); |
| } |
| |
| /** |
| * mpi3mr_encldev_add_chg_evt_bh - Enclosure evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Prints information about the Enclosure device status or |
| * Enclosure add events if logging is enabled and add or remove |
| * the enclosure from the controller's internal list of |
| * enclosures. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_encldev_add_chg_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| struct mpi3mr_enclosure_node *enclosure_dev = NULL; |
| struct mpi3_enclosure_page0 *encl_pg0; |
| u16 encl_handle; |
| u8 added, present; |
| |
| encl_pg0 = (struct mpi3_enclosure_page0 *) fwevt->event_data; |
| added = (fwevt->event_id == MPI3_EVENT_ENCL_DEVICE_ADDED) ? 1 : 0; |
| mpi3mr_encldev_add_chg_evt_debug(mrioc, encl_pg0, added); |
| |
| |
| encl_handle = le16_to_cpu(encl_pg0->enclosure_handle); |
| present = ((le16_to_cpu(encl_pg0->flags) & |
| MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4); |
| |
| if (encl_handle) |
| enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc, |
| encl_handle); |
| if (!enclosure_dev && present) { |
| enclosure_dev = |
| kzalloc(sizeof(struct mpi3mr_enclosure_node), |
| GFP_KERNEL); |
| if (!enclosure_dev) |
| return; |
| list_add_tail(&enclosure_dev->list, |
| &mrioc->enclosure_list); |
| } |
| if (enclosure_dev) { |
| if (!present) { |
| list_del(&enclosure_dev->list); |
| kfree(enclosure_dev); |
| } else |
| memcpy(&enclosure_dev->pg0, encl_pg0, |
| sizeof(enclosure_dev->pg0)); |
| |
| } |
| } |
| |
| /** |
| * mpi3mr_sastopochg_evt_debug - SASTopoChange details |
| * @mrioc: Adapter instance reference |
| * @event_data: SAS topology change list event data |
| * |
| * Prints information about the SAS topology change event. |
| * |
| * Return: Nothing. |
| */ |
| static void |
| mpi3mr_sastopochg_evt_debug(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_data_sas_topology_change_list *event_data) |
| { |
| int i; |
| u16 handle; |
| u8 reason_code, phy_number; |
| char *status_str = NULL; |
| u8 link_rate, prev_link_rate; |
| |
| switch (event_data->exp_status) { |
| case MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING: |
| status_str = "remove"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_ES_RESPONDING: |
| status_str = "responding"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING: |
| status_str = "remove delay"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER: |
| status_str = "direct attached"; |
| break; |
| default: |
| status_str = "unknown status"; |
| break; |
| } |
| ioc_info(mrioc, "%s :sas topology change: (%s)\n", |
| __func__, status_str); |
| ioc_info(mrioc, |
| "%s :\texpander_handle(0x%04x), port(%d), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n", |
| __func__, le16_to_cpu(event_data->expander_dev_handle), |
| event_data->io_unit_port, |
| le16_to_cpu(event_data->enclosure_handle), |
| event_data->start_phy_num, event_data->num_entries); |
| for (i = 0; i < event_data->num_entries; i++) { |
| handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| phy_number = event_data->start_phy_num + i; |
| reason_code = event_data->phy_entry[i].status & |
| MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
| switch (reason_code) { |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
| status_str = "target remove"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: |
| status_str = "delay target remove"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
| status_str = "link status change"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE: |
| status_str = "link status no change"; |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
| status_str = "target responding"; |
| break; |
| default: |
| status_str = "unknown"; |
| break; |
| } |
| link_rate = event_data->phy_entry[i].link_rate >> 4; |
| prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; |
| ioc_info(mrioc, |
| "%s :\tphy(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n", |
| __func__, phy_number, handle, status_str, link_rate, |
| prev_link_rate); |
| } |
| } |
| |
| /** |
| * mpi3mr_sastopochg_evt_bh - SASTopologyChange evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Prints information about the SAS topology change event and |
| * for "not responding" event code, removes the device from the |
| * upper layers. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| struct mpi3_event_data_sas_topology_change_list *event_data = |
| (struct mpi3_event_data_sas_topology_change_list *)fwevt->event_data; |
| int i; |
| u16 handle; |
| u8 reason_code; |
| u64 exp_sas_address = 0, parent_sas_address = 0; |
| struct mpi3mr_hba_port *hba_port = NULL; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| struct mpi3mr_sas_node *sas_expander = NULL; |
| unsigned long flags; |
| u8 link_rate, prev_link_rate, parent_phy_number; |
| |
| mpi3mr_sastopochg_evt_debug(mrioc, event_data); |
| if (mrioc->sas_transport_enabled) { |
| hba_port = mpi3mr_get_hba_port_by_id(mrioc, |
| event_data->io_unit_port); |
| if (le16_to_cpu(event_data->expander_dev_handle)) { |
| spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
| sas_expander = __mpi3mr_expander_find_by_handle(mrioc, |
| le16_to_cpu(event_data->expander_dev_handle)); |
| if (sas_expander) { |
| exp_sas_address = sas_expander->sas_address; |
| hba_port = sas_expander->hba_port; |
| } |
| spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); |
| parent_sas_address = exp_sas_address; |
| } else |
| parent_sas_address = mrioc->sas_hba.sas_address; |
| } |
| |
| for (i = 0; i < event_data->num_entries; i++) { |
| if (fwevt->discard) |
| return; |
| handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| if (!tgtdev) |
| continue; |
| |
| reason_code = event_data->phy_entry[i].status & |
| MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
| |
| switch (reason_code) { |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
| if (tgtdev->host_exposed) |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false); |
| mpi3mr_tgtdev_put(tgtdev); |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE: |
| { |
| if (!mrioc->sas_transport_enabled || tgtdev->non_stl |
| || tgtdev->is_hidden) |
| break; |
| link_rate = event_data->phy_entry[i].link_rate >> 4; |
| prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; |
| if (link_rate == prev_link_rate) |
| break; |
| if (!parent_sas_address) |
| break; |
| parent_phy_number = event_data->start_phy_num + i; |
| mpi3mr_update_links(mrioc, parent_sas_address, handle, |
| parent_phy_number, link_rate, hba_port); |
| break; |
| } |
| default: |
| break; |
| } |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| |
| if (mrioc->sas_transport_enabled && (event_data->exp_status == |
| MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) { |
| if (sas_expander) |
| mpi3mr_expander_remove(mrioc, exp_sas_address, |
| hba_port); |
| } |
| } |
| |
| /** |
| * mpi3mr_pcietopochg_evt_debug - PCIeTopoChange details |
| * @mrioc: Adapter instance reference |
| * @event_data: PCIe topology change list event data |
| * |
| * Prints information about the PCIe topology change event. |
| * |
| * Return: Nothing. |
| */ |
| static void |
| mpi3mr_pcietopochg_evt_debug(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_data_pcie_topology_change_list *event_data) |
| { |
| int i; |
| u16 handle; |
| u16 reason_code; |
| u8 port_number; |
| char *status_str = NULL; |
| u8 link_rate, prev_link_rate; |
| |
| switch (event_data->switch_status) { |
| case MPI3_EVENT_PCIE_TOPO_SS_NOT_RESPONDING: |
| status_str = "remove"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_SS_RESPONDING: |
| status_str = "responding"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING: |
| status_str = "remove delay"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH: |
| status_str = "direct attached"; |
| break; |
| default: |
| status_str = "unknown status"; |
| break; |
| } |
| ioc_info(mrioc, "%s :pcie topology change: (%s)\n", |
| __func__, status_str); |
| ioc_info(mrioc, |
| "%s :\tswitch_handle(0x%04x), enclosure_handle(0x%04x) start_port(%02d), num_entries(%d)\n", |
| __func__, le16_to_cpu(event_data->switch_dev_handle), |
| le16_to_cpu(event_data->enclosure_handle), |
| event_data->start_port_num, event_data->num_entries); |
| for (i = 0; i < event_data->num_entries; i++) { |
| handle = |
| le16_to_cpu(event_data->port_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| port_number = event_data->start_port_num + i; |
| reason_code = event_data->port_entry[i].port_status; |
| switch (reason_code) { |
| case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
| status_str = "target remove"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: |
| status_str = "delay target remove"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: |
| status_str = "link status change"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_NO_CHANGE: |
| status_str = "link status no change"; |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: |
| status_str = "target responding"; |
| break; |
| default: |
| status_str = "unknown"; |
| break; |
| } |
| link_rate = event_data->port_entry[i].current_port_info & |
| MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; |
| prev_link_rate = event_data->port_entry[i].previous_port_info & |
| MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; |
| ioc_info(mrioc, |
| "%s :\tport(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n", |
| __func__, port_number, handle, status_str, link_rate, |
| prev_link_rate); |
| } |
| } |
| |
| /** |
| * mpi3mr_pcietopochg_evt_bh - PCIeTopologyChange evt bottomhalf |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Prints information about the PCIe topology change event and |
| * for "not responding" event code, removes the device from the |
| * upper layers. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| struct mpi3_event_data_pcie_topology_change_list *event_data = |
| (struct mpi3_event_data_pcie_topology_change_list *)fwevt->event_data; |
| int i; |
| u16 handle; |
| u8 reason_code; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| |
| mpi3mr_pcietopochg_evt_debug(mrioc, event_data); |
| |
| for (i = 0; i < event_data->num_entries; i++) { |
| if (fwevt->discard) |
| return; |
| handle = |
| le16_to_cpu(event_data->port_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| if (!tgtdev) |
| continue; |
| |
| reason_code = event_data->port_entry[i].port_status; |
| |
| switch (reason_code) { |
| case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
| if (tgtdev->host_exposed) |
| mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
| mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false); |
| mpi3mr_tgtdev_put(tgtdev); |
| break; |
| default: |
| break; |
| } |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| } |
| |
| /** |
| * mpi3mr_logdata_evt_bh - Log data event bottomhalf |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Extracts the event data and calls application interfacing |
| * function to process the event further. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_logdata_evt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| mpi3mr_app_save_logdata(mrioc, fwevt->event_data, |
| fwevt->event_data_size); |
| } |
| |
| /** |
| * mpi3mr_update_sdev_qd - Update SCSI device queue depath |
| * @sdev: SCSI device reference |
| * @data: Queue depth reference |
| * |
| * This is an iterator function called for each SCSI device in a |
| * target to update the QD of each SCSI device. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_update_sdev_qd(struct scsi_device *sdev, void *data) |
| { |
| u16 *q_depth = (u16 *)data; |
| |
| scsi_change_queue_depth(sdev, (int)*q_depth); |
| sdev->max_queue_depth = sdev->queue_depth; |
| } |
| |
| /** |
| * mpi3mr_set_qd_for_all_vd_in_tg -set QD for TG VDs |
| * @mrioc: Adapter instance reference |
| * @tg: Throttle group information pointer |
| * |
| * Accessor to reduce QD for each device associated with the |
| * given throttle group. |
| * |
| * Return: None. |
| */ |
| static void mpi3mr_set_qd_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_throttle_group_info *tg) |
| { |
| unsigned long flags; |
| struct mpi3mr_tgt_dev *tgtdev; |
| struct mpi3mr_stgt_priv_data *tgt_priv; |
| |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| tgt_priv = tgtdev->starget->hostdata; |
| if (tgt_priv->throttle_group == tg) { |
| dprint_event_bh(mrioc, |
| "updating qd due to throttling for persist_id(%d) original_qd(%d), reduced_qd (%d)\n", |
| tgt_priv->perst_id, tgtdev->q_depth, |
| tg->modified_qd); |
| starget_for_each_device(tgtdev->starget, |
| (void *)&tg->modified_qd, |
| mpi3mr_update_sdev_qd); |
| } |
| } |
| } |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| } |
| |
| /** |
| * mpi3mr_fwevt_bh - Firmware event bottomhalf handler |
| * @mrioc: Adapter instance reference |
| * @fwevt: Firmware event reference |
| * |
| * Identifies the firmware event and calls corresponding bottomg |
| * half handler and sends event acknowledgment if required. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_fwevt *fwevt) |
| { |
| struct mpi3_device_page0 *dev_pg0 = NULL; |
| u16 perst_id, handle, dev_info; |
| struct mpi3_device0_sas_sata_format *sasinf = NULL; |
| unsigned int timeout; |
| |
| mpi3mr_fwevt_del_from_list(mrioc, fwevt); |
| mrioc->current_event = fwevt; |
| |
| if (mrioc->stop_drv_processing) |
| goto out; |
| |
| if (mrioc->unrecoverable) { |
| dprint_event_bh(mrioc, |
| "ignoring event(0x%02x) in bottom half handler due to unrecoverable controller\n", |
| fwevt->event_id); |
| goto out; |
| } |
| |
| if (!fwevt->process_evt) |
| goto evt_ack; |
| |
| switch (fwevt->event_id) { |
| case MPI3_EVENT_DEVICE_ADDED: |
| { |
| dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data; |
| perst_id = le16_to_cpu(dev_pg0->persistent_id); |
| handle = le16_to_cpu(dev_pg0->dev_handle); |
| if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID) |
| mpi3mr_report_tgtdev_to_host(mrioc, perst_id); |
| else if (mrioc->sas_transport_enabled && |
| (dev_pg0->device_form == MPI3_DEVICE_DEVFORM_SAS_SATA)) { |
| sasinf = &dev_pg0->device_specific.sas_sata_format; |
| dev_info = le16_to_cpu(sasinf->device_info); |
| if (!mrioc->sas_hba.num_phys) |
| mpi3mr_sas_host_add(mrioc); |
| else |
| mpi3mr_sas_host_refresh(mrioc); |
| |
| if (mpi3mr_is_expander_device(dev_info)) |
| mpi3mr_expander_add(mrioc, handle); |
| } |
| break; |
| } |
| case MPI3_EVENT_DEVICE_INFO_CHANGED: |
| { |
| dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data; |
| perst_id = le16_to_cpu(dev_pg0->persistent_id); |
| if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID) |
| mpi3mr_devinfochg_evt_bh(mrioc, dev_pg0); |
| break; |
| } |
| case MPI3_EVENT_DEVICE_STATUS_CHANGE: |
| { |
| mpi3mr_devstatuschg_evt_bh(mrioc, fwevt); |
| break; |
| } |
| case MPI3_EVENT_ENCL_DEVICE_ADDED: |
| case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE: |
| { |
| mpi3mr_encldev_add_chg_evt_bh(mrioc, fwevt); |
| break; |
| } |
| |
| case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: |
| { |
| mpi3mr_sastopochg_evt_bh(mrioc, fwevt); |
| break; |
| } |
| case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: |
| { |
| mpi3mr_pcietopochg_evt_bh(mrioc, fwevt); |
| break; |
| } |
| case MPI3_EVENT_LOG_DATA: |
| { |
| mpi3mr_logdata_evt_bh(mrioc, fwevt); |
| break; |
| } |
| case MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION: |
| { |
| struct mpi3mr_throttle_group_info *tg; |
| |
| tg = *(struct mpi3mr_throttle_group_info **)fwevt->event_data; |
| dprint_event_bh(mrioc, |
| "qd reduction event processed for tg_id(%d) reduction_needed(%d)\n", |
| tg->id, tg->need_qd_reduction); |
| if (tg->need_qd_reduction) { |
| mpi3mr_set_qd_for_all_vd_in_tg(mrioc, tg); |
| tg->need_qd_reduction = 0; |
| } |
| break; |
| } |
| case MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH: |
| { |
| timeout = MPI3MR_RESET_TIMEOUT * 2; |
| while ((mrioc->device_refresh_on || mrioc->block_on_pci_err) && |
| !mrioc->unrecoverable && !mrioc->pci_err_recovery) { |
| msleep(500); |
| if (!timeout--) { |
| mrioc->unrecoverable = 1; |
| break; |
| } |
| } |
| |
| if (mrioc->unrecoverable || mrioc->pci_err_recovery) |
| break; |
| |
| dprint_event_bh(mrioc, |
| "scan for non responding and newly added devices after soft reset started\n"); |
| if (mrioc->sas_transport_enabled) { |
| mpi3mr_refresh_sas_ports(mrioc); |
| mpi3mr_refresh_expanders(mrioc); |
| } |
| mpi3mr_refresh_tgtdevs(mrioc); |
| ioc_info(mrioc, |
| "scan for non responding and newly added devices after soft reset completed\n"); |
| break; |
| } |
| case MPI3MR_DRIVER_EVENT_PROCESS_TRIGGER: |
| { |
| mpi3mr_process_trigger_data_event_bh(mrioc, |
| (struct trigger_event_data *)fwevt->event_data); |
| break; |
| } |
| default: |
| break; |
| } |
| |
| evt_ack: |
| if (fwevt->send_ack) |
| mpi3mr_process_event_ack(mrioc, fwevt->event_id, |
| fwevt->evt_ctx); |
| out: |
| /* Put fwevt reference count to neutralize kref_init increment */ |
| mpi3mr_fwevt_put(fwevt); |
| mrioc->current_event = NULL; |
| } |
| |
| /** |
| * mpi3mr_fwevt_worker - Firmware event worker |
| * @work: Work struct containing firmware event |
| * |
| * Extracts the firmware event and calls mpi3mr_fwevt_bh. |
| * |
| * Return: Nothing. |
| */ |
| static void mpi3mr_fwevt_worker(struct work_struct *work) |
| { |
| struct mpi3mr_fwevt *fwevt = container_of(work, struct mpi3mr_fwevt, |
| work); |
| mpi3mr_fwevt_bh(fwevt->mrioc, fwevt); |
| /* |
| * Put fwevt reference count after |
| * dequeuing it from worker queue |
| */ |
| mpi3mr_fwevt_put(fwevt); |
| } |
| |
| /** |
| * mpi3mr_create_tgtdev - Create and add a target device |
| * @mrioc: Adapter instance reference |
| * @dev_pg0: Device Page 0 data |
| * |
| * If the device specified by the device page 0 data is not |
| * present in the driver's internal list, allocate the memory |
| * for the device, populate the data and add to the list, else |
| * update the device data. The key is persistent ID. |
| * |
| * Return: 0 on success, -ENOMEM on memory allocation failure |
| */ |
| static int mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc, |
| struct mpi3_device_page0 *dev_pg0) |
| { |
| int retval = 0; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| u16 perst_id = 0; |
| unsigned long flags; |
| |
| perst_id = le16_to_cpu(dev_pg0->persistent_id); |
| if (perst_id == MPI3_DEVICE0_PERSISTENTID_INVALID) |
| return retval; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id); |
| if (tgtdev) |
| tgtdev->state = MPI3MR_DEV_CREATED; |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| |
| if (tgtdev) { |
| mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, true); |
| mpi3mr_tgtdev_put(tgtdev); |
| } else { |
| tgtdev = mpi3mr_alloc_tgtdev(); |
| if (!tgtdev) |
| return -ENOMEM; |
| mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, true); |
| mpi3mr_tgtdev_add_to_list(mrioc, tgtdev); |
| } |
| |
| return retval; |
| } |
| |
| /** |
| * mpi3mr_flush_delayed_cmd_lists - Flush pending commands |
| * @mrioc: Adapter instance reference |
| * |
| * Flush pending commands in the delayed lists due to a |
| * controller reset or driver removal as a cleanup. |
| * |
| * Return: Nothing |
| */ |
| void mpi3mr_flush_delayed_cmd_lists(struct mpi3mr_ioc *mrioc) |
| { |
| struct delayed_dev_rmhs_node *_rmhs_node; |
| struct delayed_evt_ack_node *_evtack_node; |
| |
| dprint_reset(mrioc, "flushing delayed dev_remove_hs commands\n"); |
| while (!list_empty(&mrioc->delayed_rmhs_list)) { |
| _rmhs_node = list_entry(mrioc->delayed_rmhs_list.next, |
| struct delayed_dev_rmhs_node, list); |
| list_del(&_rmhs_node->list); |
| kfree(_rmhs_node); |
| } |
| dprint_reset(mrioc, "flushing delayed event ack commands\n"); |
| while (!list_empty(&mrioc->delayed_evtack_cmds_list)) { |
| _evtack_node = list_entry(mrioc->delayed_evtack_cmds_list.next, |
| struct delayed_evt_ack_node, list); |
| list_del(&_evtack_node->list); |
| kfree(_evtack_node); |
| } |
| } |
| |
| /** |
| * mpi3mr_dev_rmhs_complete_iou - Device removal IOUC completion |
| * @mrioc: Adapter instance reference |
| * @drv_cmd: Internal command tracker |
| * |
| * Issues a target reset TM to the firmware from the device |
| * removal TM pend list or retry the removal handshake sequence |
| * based on the IOU control request IOC status. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_dev_rmhs_complete_iou(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_drv_cmd *drv_cmd) |
| { |
| u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
| struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; |
| |
| if (drv_cmd->state & MPI3MR_CMD_RESET) |
| goto clear_drv_cmd; |
| |
| ioc_info(mrioc, |
| "%s :dev_rmhs_iouctrl_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x)\n", |
| __func__, drv_cmd->dev_handle, drv_cmd->ioc_status, |
| drv_cmd->ioc_loginfo); |
| if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
| if (drv_cmd->retry_count < MPI3MR_DEV_RMHS_RETRY_COUNT) { |
| drv_cmd->retry_count++; |
| ioc_info(mrioc, |
| "%s :dev_rmhs_iouctrl_complete: handle(0x%04x)retrying handshake retry=%d\n", |
| __func__, drv_cmd->dev_handle, |
| drv_cmd->retry_count); |
| mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle, |
| drv_cmd, drv_cmd->iou_rc); |
| return; |
| } |
| ioc_err(mrioc, |
| "%s :dev removal handshake failed after all retries: handle(0x%04x)\n", |
| __func__, drv_cmd->dev_handle); |
| } else { |
| ioc_info(mrioc, |
| "%s :dev removal handshake completed successfully: handle(0x%04x)\n", |
| __func__, drv_cmd->dev_handle); |
| clear_bit(drv_cmd->dev_handle, mrioc->removepend_bitmap); |
| } |
| |
| if (!list_empty(&mrioc->delayed_rmhs_list)) { |
| delayed_dev_rmhs = list_entry(mrioc->delayed_rmhs_list.next, |
| struct delayed_dev_rmhs_node, list); |
| drv_cmd->dev_handle = delayed_dev_rmhs->handle; |
| drv_cmd->retry_count = 0; |
| drv_cmd->iou_rc = delayed_dev_rmhs->iou_rc; |
| ioc_info(mrioc, |
| "%s :dev_rmhs_iouctrl_complete: processing delayed TM: handle(0x%04x)\n", |
| __func__, drv_cmd->dev_handle); |
| mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle, drv_cmd, |
| drv_cmd->iou_rc); |
| list_del(&delayed_dev_rmhs->list); |
| kfree(delayed_dev_rmhs); |
| return; |
| } |
| |
| clear_drv_cmd: |
| drv_cmd->state = MPI3MR_CMD_NOTUSED; |
| drv_cmd->callback = NULL; |
| drv_cmd->retry_count = 0; |
| drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| clear_bit(cmd_idx, mrioc->devrem_bitmap); |
| } |
| |
| /** |
| * mpi3mr_dev_rmhs_complete_tm - Device removal TM completion |
| * @mrioc: Adapter instance reference |
| * @drv_cmd: Internal command tracker |
| * |
| * Issues a target reset TM to the firmware from the device |
| * removal TM pend list or issue IO unit control request as |
| * part of device removal or hidden acknowledgment handshake. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_dev_rmhs_complete_tm(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_drv_cmd *drv_cmd) |
| { |
| struct mpi3_iounit_control_request iou_ctrl; |
| u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
| struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; |
| int retval; |
| |
| if (drv_cmd->state & MPI3MR_CMD_RESET) |
| goto clear_drv_cmd; |
| |
| if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID) |
| tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; |
| |
| if (tm_reply) |
| pr_info(IOCNAME |
| "dev_rmhs_tr_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x), term_count(%d)\n", |
| mrioc->name, drv_cmd->dev_handle, drv_cmd->ioc_status, |
| drv_cmd->ioc_loginfo, |
| le32_to_cpu(tm_reply->termination_count)); |
| |
| pr_info(IOCNAME "Issuing IOU CTL: handle(0x%04x) dev_rmhs idx(%d)\n", |
| mrioc->name, drv_cmd->dev_handle, cmd_idx); |
| |
| memset(&iou_ctrl, 0, sizeof(iou_ctrl)); |
| |
| drv_cmd->state = MPI3MR_CMD_PENDING; |
| drv_cmd->is_waiting = 0; |
| drv_cmd->callback = mpi3mr_dev_rmhs_complete_iou; |
| iou_ctrl.operation = drv_cmd->iou_rc; |
| iou_ctrl.param16[0] = cpu_to_le16(drv_cmd->dev_handle); |
| iou_ctrl.host_tag = cpu_to_le16(drv_cmd->host_tag); |
| iou_ctrl.function = MPI3_FUNCTION_IO_UNIT_CONTROL; |
| |
| retval = mpi3mr_admin_request_post(mrioc, &iou_ctrl, sizeof(iou_ctrl), |
| 1); |
| if (retval) { |
| pr_err(IOCNAME "Issue DevRmHsTMIOUCTL: Admin post failed\n", |
| mrioc->name); |
| goto clear_drv_cmd; |
| } |
| |
| return; |
| clear_drv_cmd: |
| drv_cmd->state = MPI3MR_CMD_NOTUSED; |
| drv_cmd->callback = NULL; |
| drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| drv_cmd->retry_count = 0; |
| clear_bit(cmd_idx, mrioc->devrem_bitmap); |
| } |
| |
| /** |
| * mpi3mr_dev_rmhs_send_tm - Issue TM for device removal |
| * @mrioc: Adapter instance reference |
| * @handle: Device handle |
| * @cmdparam: Internal command tracker |
| * @iou_rc: IO unit reason code |
| * |
| * Issues a target reset TM to the firmware or add it to a pend |
| * list as part of device removal or hidden acknowledgment |
| * handshake. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, |
| struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc) |
| { |
| struct mpi3_scsi_task_mgmt_request tm_req; |
| int retval = 0; |
| u16 cmd_idx = MPI3MR_NUM_DEVRMCMD; |
| u8 retrycount = 5; |
| struct mpi3mr_drv_cmd *drv_cmd = cmdparam; |
| struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
| tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| if (tgtdev && (iou_rc == MPI3_CTRL_OP_REMOVE_DEVICE)) |
| tgtdev->state = MPI3MR_DEV_REMOVE_HS_STARTED; |
| spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); |
| |
| if (drv_cmd) |
| goto issue_cmd; |
| do { |
| cmd_idx = find_first_zero_bit(mrioc->devrem_bitmap, |
| MPI3MR_NUM_DEVRMCMD); |
| if (cmd_idx < MPI3MR_NUM_DEVRMCMD) { |
| if (!test_and_set_bit(cmd_idx, mrioc->devrem_bitmap)) |
| break; |
| cmd_idx = MPI3MR_NUM_DEVRMCMD; |
| } |
| } while (retrycount--); |
| |
| if (cmd_idx >= MPI3MR_NUM_DEVRMCMD) { |
| delayed_dev_rmhs = kzalloc(sizeof(*delayed_dev_rmhs), |
| GFP_ATOMIC); |
| if (!delayed_dev_rmhs) |
| return; |
| INIT_LIST_HEAD(&delayed_dev_rmhs->list); |
| delayed_dev_rmhs->handle = handle; |
| delayed_dev_rmhs->iou_rc = iou_rc; |
| list_add_tail(&delayed_dev_rmhs->list, |
| &mrioc->delayed_rmhs_list); |
| ioc_info(mrioc, "%s :DevRmHs: tr:handle(0x%04x) is postponed\n", |
| __func__, handle); |
| return; |
| } |
| drv_cmd = &mrioc->dev_rmhs_cmds[cmd_idx]; |
| |
| issue_cmd: |
| cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
| ioc_info(mrioc, |
| "%s :Issuing TR TM: for devhandle 0x%04x with dev_rmhs %d\n", |
| __func__, handle, cmd_idx); |
| |
| memset(&tm_req, 0, sizeof(tm_req)); |
| if (drv_cmd->state & MPI3MR_CMD_PENDING) { |
| ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__); |
| goto out; |
| } |
| drv_cmd->state = MPI3MR_CMD_PENDING; |
| drv_cmd->is_waiting = 0; |
| drv_cmd->callback = mpi3mr_dev_rmhs_complete_tm; |
| drv_cmd->dev_handle = handle; |
| drv_cmd->iou_rc = iou_rc; |
| tm_req.dev_handle = cpu_to_le16(handle); |
| tm_req.task_type = MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET; |
| tm_req.host_tag = cpu_to_le16(drv_cmd->host_tag); |
| tm_req.task_host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INVALID); |
| tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; |
| |
| set_bit(handle, mrioc->removepend_bitmap); |
| retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1); |
| if (retval) { |
| ioc_err(mrioc, "%s :Issue DevRmHsTM: Admin Post failed\n", |
| __func__); |
| goto out_failed; |
| } |
| out: |
| return; |
| out_failed: |
| drv_cmd->state = MPI3MR_CMD_NOTUSED; |
| drv_cmd->callback = NULL; |
| drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
| drv_cmd->retry_count = 0; |
| clear_bit(cmd_idx, mrioc->devrem_bitmap); |
| } |
| |
| /** |
| * mpi3mr_complete_evt_ack - event ack request completion |
| * @mrioc: Adapter instance reference |
| * @drv_cmd: Internal command tracker |
| * |
| * This is the completion handler for non blocking event |
| * acknowledgment sent to the firmware and this will issue any |
| * pending event acknowledgment request. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_complete_evt_ack(struct mpi3mr_ioc *mrioc, |
| struct mpi3mr_drv_cmd *drv_cmd) |
| { |
| u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN; |
| struct delayed_evt_ack_node *delayed_evtack = NULL; |
| |
| if (drv_cmd->state & MPI3MR_CMD_RESET) |
| goto clear_drv_cmd; |
| |
| if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
| dprint_event_th(mrioc, |
| "immediate event ack failed with ioc_status(0x%04x) log_info(0x%08x)\n", |
| (drv_cmd->ioc_status & MPI3_IOCSTATUS_STATUS_MASK), |
| drv_cmd->ioc_loginfo); |
| } |
| |
| if (!list_empty(&mrioc->delayed_evtack_cmds_list)) { |
| delayed_evtack = |
| list_entry(mrioc->delayed_evtack_cmds_list.next, |
| struct delayed_evt_ack_node, list); |
| mpi3mr_send_event_ack(mrioc, delayed_evtack->event, drv_cmd, |
| delayed_evtack->event_ctx); |
| list_del(&delayed_evtack->list); |
| kfree(delayed_evtack); |
| return; |
| } |
| clear_drv_cmd: |
| drv_cmd->state = MPI3MR_CMD_NOTUSED; |
| drv_cmd->callback = NULL; |
| clear_bit(cmd_idx, mrioc->evtack_cmds_bitmap); |
| } |
| |
| /** |
| * mpi3mr_send_event_ack - Issue event acknwoledgment request |
| * @mrioc: Adapter instance reference |
| * @event: MPI3 event id |
| * @cmdparam: Internal command tracker |
| * @event_ctx: event context |
| * |
| * Issues event acknowledgment request to the firmware if there |
| * is a free command to send the event ack else it to a pend |
| * list so that it will be processed on a completion of a prior |
| * event acknowledgment . |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event, |
| struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx) |
| { |
| struct mpi3_event_ack_request evtack_req; |
| int retval = 0; |
| u8 retrycount = 5; |
| u16 cmd_idx = MPI3MR_NUM_EVTACKCMD; |
| struct mpi3mr_drv_cmd *drv_cmd = cmdparam; |
| struct delayed_evt_ack_node *delayed_evtack = NULL; |
| |
| if (drv_cmd) { |
| dprint_event_th(mrioc, |
| "sending delayed event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n", |
| event, event_ctx); |
| goto issue_cmd; |
| } |
| dprint_event_th(mrioc, |
| "sending event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n", |
| event, event_ctx); |
| do { |
| cmd_idx = find_first_zero_bit(mrioc->evtack_cmds_bitmap, |
| MPI3MR_NUM_EVTACKCMD); |
| if (cmd_idx < MPI3MR_NUM_EVTACKCMD) { |
| if (!test_and_set_bit(cmd_idx, |
| mrioc->evtack_cmds_bitmap)) |
| break; |
| cmd_idx = MPI3MR_NUM_EVTACKCMD; |
| } |
| } while (retrycount--); |
| |
| if (cmd_idx >= MPI3MR_NUM_EVTACKCMD) { |
| delayed_evtack = kzalloc(sizeof(*delayed_evtack), |
| GFP_ATOMIC); |
| if (!delayed_evtack) |
| return; |
| INIT_LIST_HEAD(&delayed_evtack->list); |
| delayed_evtack->event = event; |
| delayed_evtack->event_ctx = event_ctx; |
| list_add_tail(&delayed_evtack->list, |
| &mrioc->delayed_evtack_cmds_list); |
| dprint_event_th(mrioc, |
| "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is postponed\n", |
| event, event_ctx); |
| return; |
| } |
| drv_cmd = &mrioc->evtack_cmds[cmd_idx]; |
| |
| issue_cmd: |
| cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN; |
| |
| memset(&evtack_req, 0, sizeof(evtack_req)); |
| if (drv_cmd->state & MPI3MR_CMD_PENDING) { |
| dprint_event_th(mrioc, |
| "sending event ack failed due to command in use\n"); |
| goto out; |
| } |
| drv_cmd->state = MPI3MR_CMD_PENDING; |
| drv_cmd->is_waiting = 0; |
| drv_cmd->callback = mpi3mr_complete_evt_ack; |
| evtack_req.host_tag = cpu_to_le16(drv_cmd->host_tag); |
| evtack_req.function = MPI3_FUNCTION_EVENT_ACK; |
| evtack_req.event = event; |
| evtack_req.event_context = cpu_to_le32(event_ctx); |
| retval = mpi3mr_admin_request_post(mrioc, &evtack_req, |
| sizeof(evtack_req), 1); |
| if (retval) { |
| dprint_event_th(mrioc, |
| "posting event ack request is failed\n"); |
| goto out_failed; |
| } |
| |
| dprint_event_th(mrioc, |
| "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is posted\n", |
| event, event_ctx); |
| out: |
| return; |
| out_failed: |
| drv_cmd->state = MPI3MR_CMD_NOTUSED; |
| drv_cmd->callback = NULL; |
| clear_bit(cmd_idx, mrioc->evtack_cmds_bitmap); |
| } |
| |
| /** |
| * mpi3mr_pcietopochg_evt_th - PCIETopologyChange evt tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Checks for the reason code and based on that either block I/O |
| * to device, or unblock I/O to the device, or start the device |
| * removal handshake with reason as remove with the firmware for |
| * PCIe devices. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_pcietopochg_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| struct mpi3_event_data_pcie_topology_change_list *topo_evt = |
| (struct mpi3_event_data_pcie_topology_change_list *)event_reply->event_data; |
| int i; |
| u16 handle; |
| u8 reason_code; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
| |
| for (i = 0; i < topo_evt->num_entries; i++) { |
| handle = le16_to_cpu(topo_evt->port_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| reason_code = topo_evt->port_entry[i].port_status; |
| scsi_tgt_priv_data = NULL; |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) |
| scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
| tgtdev->starget->hostdata; |
| switch (reason_code) { |
| case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
| if (scsi_tgt_priv_data) { |
| scsi_tgt_priv_data->dev_removed = 1; |
| scsi_tgt_priv_data->dev_removedelay = 0; |
| atomic_set(&scsi_tgt_priv_data->block_io, 0); |
| } |
| mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, |
| MPI3_CTRL_OP_REMOVE_DEVICE); |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: |
| if (scsi_tgt_priv_data) { |
| scsi_tgt_priv_data->dev_removedelay = 1; |
| atomic_inc(&scsi_tgt_priv_data->block_io); |
| } |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: |
| if (scsi_tgt_priv_data && |
| scsi_tgt_priv_data->dev_removedelay) { |
| scsi_tgt_priv_data->dev_removedelay = 0; |
| atomic_dec_if_positive |
| (&scsi_tgt_priv_data->block_io); |
| } |
| break; |
| case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: |
| default: |
| break; |
| } |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| } |
| |
| /** |
| * mpi3mr_sastopochg_evt_th - SASTopologyChange evt tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Checks for the reason code and based on that either block I/O |
| * to device, or unblock I/O to the device, or start the device |
| * removal handshake with reason as remove with the firmware for |
| * SAS/SATA devices. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_sastopochg_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| struct mpi3_event_data_sas_topology_change_list *topo_evt = |
| (struct mpi3_event_data_sas_topology_change_list *)event_reply->event_data; |
| int i; |
| u16 handle; |
| u8 reason_code; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
| |
| for (i = 0; i < topo_evt->num_entries; i++) { |
| handle = le16_to_cpu(topo_evt->phy_entry[i].attached_dev_handle); |
| if (!handle) |
| continue; |
| reason_code = topo_evt->phy_entry[i].status & |
| MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
| scsi_tgt_priv_data = NULL; |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
| if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) |
| scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
| tgtdev->starget->hostdata; |
| switch (reason_code) { |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
| if (scsi_tgt_priv_data) { |
| scsi_tgt_priv_data->dev_removed = 1; |
| scsi_tgt_priv_data->dev_removedelay = 0; |
| atomic_set(&scsi_tgt_priv_data->block_io, 0); |
| } |
| mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, |
| MPI3_CTRL_OP_REMOVE_DEVICE); |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: |
| if (scsi_tgt_priv_data) { |
| scsi_tgt_priv_data->dev_removedelay = 1; |
| atomic_inc(&scsi_tgt_priv_data->block_io); |
| } |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
| if (scsi_tgt_priv_data && |
| scsi_tgt_priv_data->dev_removedelay) { |
| scsi_tgt_priv_data->dev_removedelay = 0; |
| atomic_dec_if_positive |
| (&scsi_tgt_priv_data->block_io); |
| } |
| break; |
| case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
| default: |
| break; |
| } |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| } |
| |
| /** |
| * mpi3mr_devstatuschg_evt_th - DeviceStatusChange evt tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Checks for the reason code and based on that either block I/O |
| * to device, or unblock I/O to the device, or start the device |
| * removal handshake with reason as remove/hide acknowledgment |
| * with the firmware. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_devstatuschg_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| u16 dev_handle = 0; |
| u8 ublock = 0, block = 0, hide = 0, delete = 0, remove = 0; |
| struct mpi3mr_tgt_dev *tgtdev = NULL; |
| struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
| struct mpi3_event_data_device_status_change *evtdata = |
| (struct mpi3_event_data_device_status_change *)event_reply->event_data; |
| |
| if (mrioc->stop_drv_processing) |
| goto out; |
| |
| dev_handle = le16_to_cpu(evtdata->dev_handle); |
| |
| switch (evtdata->reason_code) { |
| case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_STRT: |
| case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_STRT: |
| block = 1; |
| break; |
| case MPI3_EVENT_DEV_STAT_RC_HIDDEN: |
| delete = 1; |
| hide = 1; |
| break; |
| case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: |
| delete = 1; |
| remove = 1; |
| break; |
| case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_CMP: |
| case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_CMP: |
| ublock = 1; |
| break; |
| default: |
| break; |
| } |
| |
| tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); |
| if (!tgtdev) |
| goto out; |
| if (hide) |
| tgtdev->is_hidden = hide; |
| if (tgtdev->starget && tgtdev->starget->hostdata) { |
| scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
| tgtdev->starget->hostdata; |
| if (block) |
| atomic_inc(&scsi_tgt_priv_data->block_io); |
| if (delete) |
| scsi_tgt_priv_data->dev_removed = 1; |
| if (ublock) |
| atomic_dec_if_positive(&scsi_tgt_priv_data->block_io); |
| } |
| if (remove) |
| mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL, |
| MPI3_CTRL_OP_REMOVE_DEVICE); |
| if (hide) |
| mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL, |
| MPI3_CTRL_OP_HIDDEN_ACK); |
| |
| out: |
| if (tgtdev) |
| mpi3mr_tgtdev_put(tgtdev); |
| } |
| |
| /** |
| * mpi3mr_preparereset_evt_th - Prepare for reset event tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Blocks and unblocks host level I/O based on the reason code |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_preparereset_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| struct mpi3_event_data_prepare_for_reset *evtdata = |
| (struct mpi3_event_data_prepare_for_reset *)event_reply->event_data; |
| |
| if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_START) { |
| dprint_event_th(mrioc, |
| "prepare for reset event top half with rc=start\n"); |
| if (mrioc->prepare_for_reset) |
| return; |
| mrioc->prepare_for_reset = 1; |
| mrioc->prepare_for_reset_timeout_counter = 0; |
| } else if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_ABORT) { |
| dprint_event_th(mrioc, |
| "prepare for reset top half with rc=abort\n"); |
| mrioc->prepare_for_reset = 0; |
| mrioc->prepare_for_reset_timeout_counter = 0; |
| } |
| if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK) |
| == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED) |
| mpi3mr_send_event_ack(mrioc, event_reply->event, NULL, |
| le32_to_cpu(event_reply->event_context)); |
| } |
| |
| /** |
| * mpi3mr_energypackchg_evt_th - Energy pack change evt tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Identifies the new shutdown timeout value and update. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_energypackchg_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| struct mpi3_event_data_energy_pack_change *evtdata = |
| (struct mpi3_event_data_energy_pack_change *)event_reply->event_data; |
| u16 shutdown_timeout = le16_to_cpu(evtdata->shutdown_timeout); |
| |
| if (shutdown_timeout <= 0) { |
| ioc_warn(mrioc, |
| "%s :Invalid Shutdown Timeout received = %d\n", |
| __func__, shutdown_timeout); |
| return; |
| } |
| |
| ioc_info(mrioc, |
| "%s :Previous Shutdown Timeout Value = %d New Shutdown Timeout Value = %d\n", |
| __func__, mrioc->facts.shutdown_timeout, shutdown_timeout); |
| mrioc->facts.shutdown_timeout = shutdown_timeout; |
| } |
| |
| /** |
| * mpi3mr_cablemgmt_evt_th - Cable management event tophalf |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Displays Cable manegemt event details. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_cablemgmt_evt_th(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| struct mpi3_event_data_cable_management *evtdata = |
| (struct mpi3_event_data_cable_management *)event_reply->event_data; |
| |
| switch (evtdata->status) { |
| case MPI3_EVENT_CABLE_MGMT_STATUS_INSUFFICIENT_POWER: |
| { |
| ioc_info(mrioc, "An active cable with receptacle_id %d cannot be powered.\n" |
| "Devices connected to this cable are not detected.\n" |
| "This cable requires %d mW of power.\n", |
| evtdata->receptacle_id, |
| le32_to_cpu(evtdata->active_cable_power_requirement)); |
| break; |
| } |
| case MPI3_EVENT_CABLE_MGMT_STATUS_DEGRADED: |
| { |
| ioc_info(mrioc, "A cable with receptacle_id %d is not running at optimal speed\n", |
| evtdata->receptacle_id); |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * mpi3mr_add_event_wait_for_device_refresh - Add Wait for Device Refresh Event |
| * @mrioc: Adapter instance reference |
| * |
| * Add driver specific event to make sure that the driver won't process the |
| * events until all the devices are refreshed during soft reset. |
| * |
| * Return: Nothing |
| */ |
| void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc) |
| { |
| struct mpi3mr_fwevt *fwevt = NULL; |
| |
| fwevt = mpi3mr_alloc_fwevt(0); |
| if (!fwevt) { |
| dprint_event_th(mrioc, |
| "failed to schedule bottom half handler for event(0x%02x)\n", |
| MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH); |
| return; |
| } |
| fwevt->mrioc = mrioc; |
| fwevt->event_id = MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH; |
| fwevt->send_ack = 0; |
| fwevt->process_evt = 1; |
| fwevt->evt_ctx = 0; |
| fwevt->event_data_size = 0; |
| mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
| } |
| |
| /** |
| * mpi3mr_os_handle_events - Firmware event handler |
| * @mrioc: Adapter instance reference |
| * @event_reply: event data |
| * |
| * Identify whteher the event has to handled and acknowledged |
| * and either process the event in the tophalf and/or schedule a |
| * bottom half through mpi3mr_fwevt_worker. |
| * |
| * Return: Nothing |
| */ |
| void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc, |
| struct mpi3_event_notification_reply *event_reply) |
| { |
| u16 evt_type, sz; |
| struct mpi3mr_fwevt *fwevt = NULL; |
| bool ack_req = 0, process_evt_bh = 0; |
| |
| if (mrioc->stop_drv_processing) |
| return; |
| |
| if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK) |
| == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED) |
| ack_req = 1; |
| |
| evt_type = event_reply->event; |
| mpi3mr_event_trigger(mrioc, event_reply->event); |
| |
| switch (evt_type) { |
| case MPI3_EVENT_DEVICE_ADDED: |
| { |
| struct mpi3_device_page0 *dev_pg0 = |
| (struct mpi3_device_page0 *)event_reply->event_data; |
| if (mpi3mr_create_tgtdev(mrioc, dev_pg0)) |
| ioc_err(mrioc, |
| "%s :Failed to add device in the device add event\n", |
| __func__); |
| else |
| process_evt_bh = 1; |
| break; |
| } |
| case MPI3_EVENT_DEVICE_STATUS_CHANGE: |
| { |
| process_evt_bh = 1; |
| mpi3mr_devstatuschg_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: |
| { |
| process_evt_bh = 1; |
| mpi3mr_sastopochg_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: |
| { |
| process_evt_bh = 1; |
| mpi3mr_pcietopochg_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_PREPARE_FOR_RESET: |
| { |
| mpi3mr_preparereset_evt_th(mrioc, event_reply); |
| ack_req = 0; |
| break; |
| } |
| case MPI3_EVENT_DIAGNOSTIC_BUFFER_STATUS_CHANGE: |
| { |
| mpi3mr_hdbstatuschg_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_DEVICE_INFO_CHANGED: |
| case MPI3_EVENT_LOG_DATA: |
| case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE: |
| case MPI3_EVENT_ENCL_DEVICE_ADDED: |
| { |
| process_evt_bh = 1; |
| break; |
| } |
| case MPI3_EVENT_ENERGY_PACK_CHANGE: |
| { |
| mpi3mr_energypackchg_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_CABLE_MGMT: |
| { |
| mpi3mr_cablemgmt_evt_th(mrioc, event_reply); |
| break; |
| } |
| case MPI3_EVENT_SAS_DISCOVERY: |
| case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR: |
| case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE: |
| case MPI3_EVENT_PCIE_ENUMERATION: |
| break; |
| default: |
| ioc_info(mrioc, "%s :event 0x%02x is not handled\n", |
| __func__, evt_type); |
| break; |
| } |
| if (process_evt_bh || ack_req) { |
| sz = event_reply->event_data_length * 4; |
| fwevt = mpi3mr_alloc_fwevt(sz); |
| if (!fwevt) { |
| ioc_info(mrioc, "%s :failure at %s:%d/%s()!\n", |
| __func__, __FILE__, __LINE__, __func__); |
| return; |
| } |
| |
| memcpy(fwevt->event_data, event_reply->event_data, sz); |
| fwevt->mrioc = mrioc; |
| fwevt->event_id = evt_type; |
| fwevt->send_ack = ack_req; |
| fwevt->process_evt = process_evt_bh; |
| fwevt->evt_ctx = le32_to_cpu(event_reply->event_context); |
| mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
| } |
| } |
| |
| /** |
| * mpi3mr_setup_eedp - Setup EEDP information in MPI3 SCSI IO |
| * @mrioc: Adapter instance reference |
| * @scmd: SCSI command reference |
| * @scsiio_req: MPI3 SCSI IO request |
| * |
| * Identifies the protection information flags from the SCSI |
| * command and set appropriate flags in the MPI3 SCSI IO |
| * request. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_setup_eedp(struct mpi3mr_ioc *mrioc, |
| struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) |
| { |
| u16 eedp_flags = 0; |
| unsigned char prot_op = scsi_get_prot_op(scmd); |
| |
| switch (prot_op) { |
| case SCSI_PROT_NORMAL: |
| return; |
| case SCSI_PROT_READ_STRIP: |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; |
| break; |
| case SCSI_PROT_WRITE_INSERT: |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; |
| break; |
| case SCSI_PROT_READ_INSERT: |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; |
| scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
| break; |
| case SCSI_PROT_WRITE_STRIP: |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; |
| scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
| break; |
| case SCSI_PROT_READ_PASS: |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; |
| scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
| break; |
| case SCSI_PROT_WRITE_PASS: |
| if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) { |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REGEN; |
| scsiio_req->sgl[0].eedp.application_tag_translation_mask = |
| 0xffff; |
| } else |
| eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; |
| |
| scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
| break; |
| default: |
| return; |
| } |
| |
| if (scmd->prot_flags & SCSI_PROT_GUARD_CHECK) |
| eedp_flags |= MPI3_EEDPFLAGS_CHK_GUARD; |
| |
| if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) |
| eedp_flags |= MPI3_EEDPFLAGS_HOST_GUARD_IP_CHKSUM; |
| |
| if (scmd->prot_flags & SCSI_PROT_REF_CHECK) { |
| eedp_flags |= MPI3_EEDPFLAGS_CHK_REF_TAG | |
| MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; |
| scsiio_req->cdb.eedp32.primary_reference_tag = |
| cpu_to_be32(scsi_prot_ref_tag(scmd)); |
| } |
| |
| if (scmd->prot_flags & SCSI_PROT_REF_INCREMENT) |
| eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; |
| |
| eedp_flags |= MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE; |
| |
| switch (scsi_prot_interval(scmd)) { |
| case 512: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_512; |
| break; |
| case 520: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_520; |
| break; |
| case 4080: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4080; |
| break; |
| case 4088: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4088; |
| break; |
| case 4096: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4096; |
| break; |
| case 4104: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4104; |
| break; |
| case 4160: |
| scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4160; |
| break; |
| default: |
| break; |
| } |
| |
| scsiio_req->sgl[0].eedp.eedp_flags = cpu_to_le16(eedp_flags); |
| scsiio_req->sgl[0].eedp.flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED; |
| } |
| |
| /** |
| * mpi3mr_build_sense_buffer - Map sense information |
| * @desc: Sense type |
| * @buf: Sense buffer to populate |
| * @key: Sense key |
| * @asc: Additional sense code |
| * @ascq: Additional sense code qualifier |
| * |
| * Maps the given sense information into either descriptor or |
| * fixed format sense data. |
| * |
| * Return: Nothing |
| */ |
| static inline void mpi3mr_build_sense_buffer(int desc, u8 *buf, u8 key, |
| u8 asc, u8 ascq) |
| { |
| if (desc) { |
| buf[0] = 0x72; /* descriptor, current */ |
| buf[1] = key; |
| buf[2] = asc; |
| buf[3] = ascq; |
| buf[7] = 0; |
| } else { |
| buf[0] = 0x70; /* fixed, current */ |
| buf[2] = key; |
| buf[7] = 0xa; |
| buf[12] = asc; |
| buf[13] = ascq; |
| } |
| } |
| |
| /** |
| * mpi3mr_map_eedp_error - Map EEDP errors from IOC status |
| * @scmd: SCSI command reference |
| * @ioc_status: status of MPI3 request |
| * |
| * Maps the EEDP error status of the SCSI IO request to sense |
| * data. |
| * |
| * Return: Nothing |
| */ |
| static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd, |
| u16 ioc_status) |
| { |
| u8 ascq = 0; |
| |
| switch (ioc_status) { |
| case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: |
| ascq = 0x01; |
| break; |
| case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: |
| ascq = 0x02; |
| break; |
| case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: |
| ascq = 0x03; |
| break; |
| default: |
| ascq = 0x00; |
| break; |
| } |
| |
| mpi3mr_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, |
| 0x10, ascq); |
| scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; |
| } |
| |
| /** |
| * mpi3mr_process_op_reply_desc - reply descriptor handler |
| * @mrioc: Adapter instance reference |
| * @reply_desc: Operational reply descriptor |
| * @reply_dma: place holder for reply DMA address |
| * @qidx: Operational queue index |
| * |
| * Process the operational reply descriptor and identifies the |
| * descriptor type. Based on the descriptor map the MPI3 request |
| * status to a SCSI command status and calls scsi_done call |
| * back. |
| * |
|