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nvme: add APIs for stopping/starting admin queue

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Add two APIs for stopping and starting admin queue.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211014081710.1871747-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2021-10-14 16:17:05 +08:00 committed by Jens Axboe
parent 2fc428f6b7
commit a277654baf
2 changed files with 14 additions and 0 deletions
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12
drivers/nvme/host/core.c
View File

@ -4579,6 +4579,18 @@ void nvme_start_queues(struct nvme_ctrl *ctrl)
} }
EXPORT_SYMBOL_GPL(nvme_start_queues); EXPORT_SYMBOL_GPL(nvme_start_queues);
void nvme_stop_admin_queue(struct nvme_ctrl *ctrl)
{
blk_mq_quiesce_queue(ctrl->admin_q);
}
EXPORT_SYMBOL_GPL(nvme_stop_admin_queue);
void nvme_start_admin_queue(struct nvme_ctrl *ctrl)
{
blk_mq_unquiesce_queue(ctrl->admin_q);
}
EXPORT_SYMBOL_GPL(nvme_start_admin_queue);
void nvme_sync_io_queues(struct nvme_ctrl *ctrl) void nvme_sync_io_queues(struct nvme_ctrl *ctrl)
{ {
struct nvme_ns *ns; struct nvme_ns *ns;

2
drivers/nvme/host/nvme.h
View File

@ -679,6 +679,8 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
void nvme_stop_queues(struct nvme_ctrl *ctrl); void nvme_stop_queues(struct nvme_ctrl *ctrl);
void nvme_start_queues(struct nvme_ctrl *ctrl); void nvme_start_queues(struct nvme_ctrl *ctrl);
void nvme_stop_admin_queue(struct nvme_ctrl *ctrl);
void nvme_start_admin_queue(struct nvme_ctrl *ctrl);
void nvme_kill_queues(struct nvme_ctrl *ctrl); void nvme_kill_queues(struct nvme_ctrl *ctrl);
void nvme_sync_queues(struct nvme_ctrl *ctrl); void nvme_sync_queues(struct nvme_ctrl *ctrl);
void nvme_sync_io_queues(struct nvme_ctrl *ctrl); void nvme_sync_io_queues(struct nvme_ctrl *ctrl);