From: Chao Leng lengchao@huawei.com
[ Upstream commit 2547906982e2e6a0d42f8957f55af5bb51a7e55f ]
Add nvme_cancel_tagset and nvme_cancel_admin_tagset for tear down and reconnection error handling.
Signed-off-by: Chao Leng lengchao@huawei.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- 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 4ec5f05dabe1..e1e574ecf031 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -351,6 +351,26 @@ 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 567f7ad18a91..f843540cc238 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -571,6 +571,8 @@ 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);