Commit 6887fc64 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Christoph Hellwig
Browse files

nvme: introduce nvme_start_request 



In preparation for nvme-multipath IO stats accounting, we want the
accounting to happen in a centralized place. The request completion
is already centralized, but we need a common helper to request I/O
start.

Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarKeith Busch <kbusch@kernel.org>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
parent 99722c8a

drivers/nvme/host/apple.c

+1 −1
Original line number Diff line number Diff line
@@ -763,7 +763,7 @@ static blk_status_t apple_nvme_queue_rq(struct blk_mq_hw_ctx *hctx, 
			goto out_free_cmd;

	}



	blk_mq_start_request(req);

	nvme_start_request(req);

	apple_nvme_submit_cmd(q, cmnd);

	return BLK_STS_OK;

drivers/nvme/host/fc.c

+1 −1
Original line number Diff line number Diff line
@@ -2733,7 +2733,7 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue, 
	atomic_set(&op->state, FCPOP_STATE_ACTIVE);



	if (!(op->flags & FCOP_FLAGS_AEN))

		blk_mq_start_request(op->rq);

		nvme_start_request(op->rq);



	cmdiu->csn = cpu_to_be32(atomic_inc_return(&queue->csn));

	ret = ctrl->lport->ops->fcp_io(&ctrl->lport->localport,

drivers/nvme/host/nvme.h

+5 −0
Original line number Diff line number Diff line
@@ -1012,6 +1012,11 @@ static inline void nvme_hwmon_exit(struct nvme_ctrl *ctrl) 
}

#endif



static inline void nvme_start_request(struct request *rq)

{

	blk_mq_start_request(rq);

}



static inline bool nvme_ctrl_sgl_supported(struct nvme_ctrl *ctrl)

{

	return ctrl->sgls & ((1 << 0) | (1 << 1));

drivers/nvme/host/pci.c

+1 −1
Original line number Diff line number Diff line
@@ -907,7 +907,7 @@ static blk_status_t nvme_prep_rq(struct nvme_dev *dev, struct request *req) 
			goto out_unmap_data;

	}



	blk_mq_start_request(req);

	nvme_start_request(req);

	return BLK_STS_OK;

out_unmap_data:

	nvme_unmap_data(dev, req);

drivers/nvme/host/rdma.c

+1 −1
Original line number Diff line number Diff line
@@ -2040,7 +2040,7 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx, 
	if (ret)

		goto unmap_qe;



	blk_mq_start_request(rq);

	nvme_start_request(rq);



	if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY) &&

	    queue->pi_support &&