diff options
| author | Keith Busch <kbusch@kernel.org> | 2021-03-17 13:37:03 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-04-02 18:48:27 +0200 |
| commit | f4b9e6c90c572519041f4c5d9c4c3dd50aff42d4 (patch) | |
| tree | 6725ab4598f38eab1b8fb408a6baba89818f4e91 /drivers/nvme/target/loop.c | |
| parent | af7fae857ea22e9c2aef812e1321d9c5c206edde (diff) | |
nvme: use driver pdu command for passthrough
All nvme transport drivers preallocate an nvme command for each request.
Assume to use that command for nvme_setup_cmd() instead of requiring
drivers pass a pointer to it. All nvme drivers must initialize the
generic nvme_request 'cmd' to point to the transport's preallocated
nvme_command.
The generic nvme_request cmd pointer had previously been used only as a
temporary copy for passthrough commands. Since it now points to the
command that gets dispatched, passthrough commands must directly set it
up prior to executing the request.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/target/loop.c')
| -rw-r--r-- | drivers/nvme/target/loop.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index a7f97c8b2f77..b741854fc957 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -141,7 +141,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx, if (!nvmf_check_ready(&queue->ctrl->ctrl, req, queue_ready)) return nvmf_fail_nonready_command(&queue->ctrl->ctrl, req); - ret = nvme_setup_cmd(ns, req, &iod->cmd); + ret = nvme_setup_cmd(ns, req); if (ret) return ret; @@ -205,8 +205,10 @@ static int nvme_loop_init_request(struct blk_mq_tag_set *set, unsigned int numa_node) { struct nvme_loop_ctrl *ctrl = set->driver_data; + struct nvme_loop_iod *iod = blk_mq_rq_to_pdu(req); nvme_req(req)->ctrl = &ctrl->ctrl; + nvme_req(req)->cmd = &iod->cmd; return nvme_loop_init_iod(ctrl, blk_mq_rq_to_pdu(req), (set == &ctrl->tag_set) ? hctx_idx + 1 : 0); } |