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nvme: move queue_count to the nvme_ctrl

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All all transports use the queue_count in exactly the same, so move it to
the generic struct nvme_ctrl. In the future it will also be maintained by
the core.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-By: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
Sagi Grimberg
2017-04-24 10:58:29 +03:00
parent d554b5e1ca
commit d858e5f04e
5 changed files with 51 additions and 54 deletions
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15
drivers/nvme/target/loop.c
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@@ -44,7 +44,6 @@ struct nvme_loop_iod {
struct nvme_loop_ctrl {
struct nvme_loop_queue *queues;
u32 queue_count;
struct blk_mq_tag_set admin_tag_set;
@@ -241,7 +240,7 @@ static int nvme_loop_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
struct nvme_loop_ctrl *ctrl = data;
struct nvme_loop_queue *queue = &ctrl->queues[hctx_idx + 1];
BUG_ON(hctx_idx >= ctrl->queue_count);
BUG_ON(hctx_idx >= ctrl->ctrl.queue_count);
hctx->driver_data = queue;
return 0;
@@ -307,7 +306,7 @@ static void nvme_loop_destroy_io_queues(struct nvme_loop_ctrl *ctrl)
{
int i;
for (i = 1; i < ctrl->queue_count; i++)
for (i = 1; i < ctrl->ctrl.queue_count; i++)
nvmet_sq_destroy(&ctrl->queues[i].nvme_sq);
}
@@ -330,7 +329,7 @@ static int nvme_loop_init_io_queues(struct nvme_loop_ctrl *ctrl)
if (ret)
goto out_destroy_queues;
ctrl->queue_count++;
ctrl->ctrl.queue_count++;
}
return 0;
@@ -344,7 +343,7 @@ static int nvme_loop_connect_io_queues(struct nvme_loop_ctrl *ctrl)
{
int i, ret;
for (i = 1; i < ctrl->queue_count; i++) {
for (i = 1; i < ctrl->ctrl.queue_count; i++) {
ret = nvmf_connect_io_queue(&ctrl->ctrl, i);
if (ret)
return ret;
@@ -372,7 +371,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
error = nvmet_sq_init(&ctrl->queues[0].nvme_sq);
if (error)
return error;
ctrl->queue_count = 1;
ctrl->ctrl.queue_count = 1;
error = blk_mq_alloc_tag_set(&ctrl->admin_tag_set);
if (error)
@@ -426,7 +425,7 @@ static void nvme_loop_shutdown_ctrl(struct nvme_loop_ctrl *ctrl)
{
nvme_stop_keep_alive(&ctrl->ctrl);
if (ctrl->queue_count > 1) {
if (ctrl->ctrl.queue_count > 1) {
nvme_stop_queues(&ctrl->ctrl);
blk_mq_tagset_busy_iter(&ctrl->tag_set,
nvme_cancel_request, &ctrl->ctrl);
@@ -559,7 +558,7 @@ static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl)
ctrl->tag_set.cmd_size = sizeof(struct nvme_loop_iod) +
SG_CHUNK_SIZE * sizeof(struct scatterlist);
ctrl->tag_set.driver_data = ctrl;
ctrl->tag_set.nr_hw_queues = ctrl->queue_count - 1;
ctrl->tag_set.nr_hw_queues = ctrl->ctrl.queue_count - 1;
ctrl->tag_set.timeout = NVME_IO_TIMEOUT;
ctrl->ctrl.tagset = &ctrl->tag_set;