From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
Chaitanya Kulkarni <chaitanyak@nvidia.com>
Cc: Sagi Grimberg <sagi@grimberg.me>, Keith Busch <kbusch@kernel.org>,
Bart Van Assche <bvanassche@acm.org>,
Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V3 1/6] nvme: add APIs for stopping/starting admin queue
Date: Sat, 9 Oct 2021 11:47:08 +0800 [thread overview]
Message-ID: <20211009034713.1489183-2-ming.lei@redhat.com> (raw)
In-Reply-To: <20211009034713.1489183-1-ming.lei@redhat.com>
Add two APIs for stopping and starting admin queue.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
drivers/nvme/host/core.c | 12 ++++++++++++
drivers/nvme/host/nvme.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 7fa75433c036..c675eef70a63 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4563,6 +4563,18 @@ void nvme_start_queues(struct nvme_ctrl *ctrl)
}
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)
{
struct nvme_ns *ns;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 9871c0c9374c..47877a5f1515 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -659,6 +659,8 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
void nvme_stop_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_sync_queues(struct nvme_ctrl *ctrl);
void nvme_sync_io_queues(struct nvme_ctrl *ctrl);
--
2.31.1
next prev parent reply other threads:[~2021-10-09 3:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-09 3:47 [PATCH V3 0/6] blk-mq: support concurrent queue quiescing Ming Lei
2021-10-09 3:47 ` Ming Lei [this message]
2021-10-09 3:47 ` [PATCH V3 2/6] nvme: apply nvme API to quiesce/unquiesce admin queue Ming Lei
2021-10-09 3:47 ` [PATCH V3 3/6] nvme: prepare for pairing quiescing and unquiescing Ming Lei
2021-10-09 3:47 ` [PATCH V3 4/6] nvme: paring quiesce/unquiesce Ming Lei
2021-10-12 10:36 ` Christoph Hellwig
2021-10-12 15:01 ` Ming Lei
2021-10-12 15:07 ` Christoph Hellwig
2021-10-12 15:17 ` Ming Lei
2021-10-13 12:23 ` Sagi Grimberg
2021-10-09 3:47 ` [PATCH V3 5/6] nvme: loop: clear NVME_CTRL_ADMIN_Q_STOPPED after admin queue is reallocated Ming Lei
2021-10-09 3:47 ` [PATCH V3 6/6] blk-mq: support concurrent queue quiesce/unquiesce Ming Lei
2021-10-12 10:30 ` Christoph Hellwig
2021-10-12 15:06 ` Ming Lei
2021-10-12 15:08 ` Christoph Hellwig
2021-10-12 15:13 ` Ming Lei
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