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| author | Sagi Grimberg <sagi@grimberg.me> | 2018-06-29 16:50:00 -0600 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-07-23 09:35:18 +0200 |
| commit | 59e29ce66bc52ebd6d0cb450f13079c7e913430d (patch) | |
| tree | 8882b25c96d7db76f083bb6ecaad24676e55dc08 /drivers/nvme | |
| parent | 202093848cac2da7d92ae666b51b7109bbab633c (diff) | |
| download | linux-59e29ce66bc52ebd6d0cb450f13079c7e913430d.tar.gz linux-59e29ce66bc52ebd6d0cb450f13079c7e913430d.tar.bz2 linux-59e29ce66bc52ebd6d0cb450f13079c7e913430d.zip | |
nvme: cache struct nvme_ctrl reference to struct nvme_request
We will need to reference the controller in the setup and completion
time for tracing and future traffic based keep alive support.
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/fc.c | 1 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 2 | ||||
| -rw-r--r-- | drivers/nvme/host/rdma.c | 1 | ||||
| -rw-r--r-- | drivers/nvme/target/loop.c | 1 |
5 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 41d45a1b5c62..9cc33752539a 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -1737,6 +1737,7 @@ nvme_fc_init_request(struct blk_mq_tag_set *set, struct request *rq, int queue_idx = (set == &ctrl->tag_set) ? hctx_idx + 1 : 0; struct nvme_fc_queue *queue = &ctrl->queues[queue_idx]; + nvme_req(rq)->ctrl = &ctrl->ctrl; return __nvme_fc_init_request(ctrl, queue, op, rq, queue->rqcnt++); } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 0c4a33df3b2f..f2249387b60d 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -102,6 +102,7 @@ struct nvme_request { u8 retries; u8 flags; u16 status; + struct nvme_ctrl *ctrl; }; /* diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index ba943f211687..8dcae11bbf3a 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -418,6 +418,8 @@ static int nvme_init_request(struct blk_mq_tag_set *set, struct request *req, BUG_ON(!nvmeq); iod->nvmeq = nvmeq; + + nvme_req(req)->ctrl = &dev->ctrl; return 0; } diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 363f73fe549c..bb6e26fa8331 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -288,6 +288,7 @@ static int nvme_rdma_init_request(struct blk_mq_tag_set *set, struct ib_device *ibdev = dev->dev; int ret; + nvme_req(rq)->ctrl = &ctrl->ctrl; ret = nvme_rdma_alloc_qe(ibdev, &req->sqe, sizeof(struct nvme_command), DMA_TO_DEVICE); if (ret) diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index d8d91f04bd7e..af7fbf4132b0 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -227,6 +227,7 @@ static int nvme_loop_init_request(struct blk_mq_tag_set *set, { struct nvme_loop_ctrl *ctrl = set->driver_data; + nvme_req(req)->ctrl = &ctrl->ctrl; return nvme_loop_init_iod(ctrl, blk_mq_rq_to_pdu(req), (set == &ctrl->tag_set) ? hctx_idx + 1 : 0); } |