From: Chao Leng <lengchao@huawei.com>
To: <linux-nvme@lists.infradead.org>
Cc: kbusch@kernel.org, axboe@fb.com, hch@lst.de, lengchao@huawei.com,
sagi@grimberg.me
Subject: [PATCH 1/5] nvme-core: add cancel tagset helpers
Date: Thu, 21 Jan 2021 11:32:36 +0800 [thread overview]
Message-ID: <20210121033240.31906-2-lengchao@huawei.com> (raw)
In-Reply-To: <20210121033240.31906-1-lengchao@huawei.com>
Add nvme_cancel_tagset and nvme_cancel_admin_tagset for tear down and
reconnection error handling.
Signed-off-by: Chao Leng <lengchao@huawei.com>
---
drivers/nvme/host/core.c | 20 ++++++++++++++++++++
drivers/nvme/host/nvme.h | 2 ++
2 files changed, 22 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 200bdd672c28..402a433afa55 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -371,6 +371,26 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
}
EXPORT_SYMBOL_GPL(nvme_cancel_request);
+void nvme_cancel_tagset(struct nvme_ctrl *ctrl)
+{
+ if (ctrl->tagset) {
+ blk_mq_tagset_busy_iter(ctrl->tagset,
+ nvme_cancel_request, ctrl);
+ blk_mq_tagset_wait_completed_request(ctrl->tagset);
+ }
+}
+EXPORT_SYMBOL_GPL(nvme_cancel_tagset);
+
+void nvme_cancel_admin_tagset(struct nvme_ctrl *ctrl)
+{
+ if (ctrl->admin_tagset) {
+ blk_mq_tagset_busy_iter(ctrl->admin_tagset,
+ nvme_cancel_request, ctrl);
+ blk_mq_tagset_wait_completed_request(ctrl->admin_tagset);
+ }
+}
+EXPORT_SYMBOL_GPL(nvme_cancel_admin_tagset);
+
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
enum nvme_ctrl_state new_state)
{
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 88a6b97247f5..a72f07181091 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -576,6 +576,8 @@ static inline bool nvme_is_aen_req(u16 qid, __u16 command_id)
void nvme_complete_rq(struct request *req);
bool nvme_cancel_request(struct request *req, void *data, bool reserved);
+void nvme_cancel_tagset(struct nvme_ctrl *ctrl);
+void nvme_cancel_admin_tagset(struct nvme_ctrl *ctrl);
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
enum nvme_ctrl_state new_state);
bool nvme_wait_reset(struct nvme_ctrl *ctrl);
--
2.16.4
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next prev parent reply other threads:[~2021-01-21 3:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 3:32 [PATCH 0/5] add clean action for failed reconnection Chao Leng
2021-01-21 3:32 ` Chao Leng [this message]
2021-01-21 3:32 ` [PATCH 2/5] nvme-rdma: " Chao Leng
2021-01-21 3:32 ` [PATCH 3/5] nvme-tcp: " Chao Leng
2021-01-21 3:32 ` [PATCH 4/5] nvme-rdma: use cancel tagset helper for tear down Chao Leng
2021-01-21 3:32 ` [PATCH 5/5] nvme-tcp: " Chao Leng
2021-01-27 17:46 ` [PATCH 0/5] add clean action for failed reconnection Christoph Hellwig
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