diff options
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index ea1aa5283e8e..8e4550fa08f8 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -32,6 +32,8 @@ extern unsigned int admin_timeout; #define NVME_KATO_GRACE 10 extern struct workqueue_struct *nvme_wq; +extern struct workqueue_struct *nvme_reset_wq; +extern struct workqueue_struct *nvme_delete_wq; enum { NVME_NS_LBA = 0, @@ -119,6 +121,7 @@ static inline struct nvme_request *nvme_req(struct request *req) enum nvme_ctrl_state { NVME_CTRL_NEW, NVME_CTRL_LIVE, + NVME_CTRL_ADMIN_ONLY, /* Only admin queue live */ NVME_CTRL_RESETTING, NVME_CTRL_RECONNECTING, NVME_CTRL_DELETING, @@ -393,6 +396,7 @@ int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count); void nvme_start_keep_alive(struct nvme_ctrl *ctrl); void nvme_stop_keep_alive(struct nvme_ctrl *ctrl); int nvme_reset_ctrl(struct nvme_ctrl *ctrl); +int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl); int nvme_delete_ctrl(struct nvme_ctrl *ctrl); int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl); @@ -401,7 +405,7 @@ extern const struct block_device_operations nvme_ns_head_ops; #ifdef CONFIG_NVME_MULTIPATH void nvme_failover_req(struct request *req); -bool nvme_req_needs_failover(struct request *req); +bool nvme_req_needs_failover(struct request *req, blk_status_t error); void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl); int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head); void nvme_mpath_add_disk(struct nvme_ns_head *head); @@ -417,11 +421,21 @@ static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) rcu_assign_pointer(head->current_path, NULL); } struct nvme_ns *nvme_find_path(struct nvme_ns_head *head); + +static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) +{ + struct nvme_ns_head *head = ns->head; + + if (head->disk && list_empty(&head->list)) + kblockd_schedule_work(&head->requeue_work); +} + #else static inline void nvme_failover_req(struct request *req) { } -static inline bool nvme_req_needs_failover(struct request *req) +static inline bool nvme_req_needs_failover(struct request *req, + blk_status_t error) { return false; } @@ -448,6 +462,9 @@ static inline void nvme_mpath_remove_disk_links(struct nvme_ns *ns) static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) { } +static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) +{ +} #endif /* CONFIG_NVME_MULTIPATH */ #ifdef CONFIG_NVM |