mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 16:15:11 +00:00
Code Issues Releases Wiki Activity

nvme-rdma: use the tagset alloc/free helpers

Browse source 
Use the common helpers to allocate and free the tagsets.  To make this
work the generic nvme_ctrl now needs to be stored in the hctx private
data instead of the nvme_rdma_ctrl.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
This commit is contained in:
Christoph Hellwig 2022-09-20 17:14:53 +02:00
parent 2d60738c8f
commit cefa1032f1
1 changed files with 35 additions and 100 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

135
drivers/nvme/host/rdma.c
View file

@ -788,64 +788,21 @@ static int nvme_rdma_alloc_io_queues(struct nvme_rdma_ctrl *ctrl)
return ret;
}
static int nvme_rdma_alloc_admin_tag_set(struct nvme_ctrl *nctrl)
static int nvme_rdma_alloc_tag_set(struct nvme_ctrl *ctrl)
{
struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
struct blk_mq_tag_set *set = &ctrl->admin_tag_set;
int ret;
unsigned int cmd_size = sizeof(struct nvme_rdma_request) +
NVME_RDMA_DATA_SGL_SIZE;
memset(set, 0, sizeof(*set));
set->ops = &nvme_rdma_admin_mq_ops;
set->queue_depth = NVME_AQ_MQ_TAG_DEPTH;
set->reserved_tags = NVMF_RESERVED_TAGS;
set->numa_node = nctrl->numa_node;
set->cmd_size = sizeof(struct nvme_rdma_request) +
NVME_RDMA_DATA_SGL_SIZE;
set->driver_data = &ctrl->ctrl;
set->nr_hw_queues = 1;
set->timeout = NVME_ADMIN_TIMEOUT;
set->flags = BLK_MQ_F_NO_SCHED;
ret = blk_mq_alloc_tag_set(set);
if (!ret)
ctrl->ctrl.admin_tagset = set;
return ret;
if (ctrl->max_integrity_segments)
cmd_size += sizeof(struct nvme_rdma_sgl) +
NVME_RDMA_METADATA_SGL_SIZE;
return nvme_alloc_io_tag_set(ctrl, &to_rdma_ctrl(ctrl)->tag_set,
&nvme_rdma_mq_ops, BLK_MQ_F_SHOULD_MERGE, cmd_size);
}
static int nvme_rdma_alloc_tag_set(struct nvme_ctrl *nctrl)
static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl)
{
struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
struct blk_mq_tag_set *set = &ctrl->tag_set;
int ret;
memset(set, 0, sizeof(*set));
set->ops = &nvme_rdma_mq_ops;
set->queue_depth = nctrl->sqsize + 1;
set->reserved_tags = NVMF_RESERVED_TAGS;
set->numa_node = nctrl->numa_node;
set->flags = BLK_MQ_F_SHOULD_MERGE;
set->cmd_size = sizeof(struct nvme_rdma_request) +
NVME_RDMA_DATA_SGL_SIZE;
if (nctrl->max_integrity_segments)
set->cmd_size += sizeof(struct nvme_rdma_sgl) +
NVME_RDMA_METADATA_SGL_SIZE;
set->driver_data = &ctrl->ctrl;
set->nr_hw_queues = nctrl->queue_count - 1;
set->timeout = NVME_IO_TIMEOUT;
set->nr_maps = nctrl->opts->nr_poll_queues ? HCTX_MAX_TYPES : 2;
ret = blk_mq_alloc_tag_set(set);
if (!ret)
ctrl->ctrl.tagset = set;
return ret;
}
static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
bool remove)
{
if (remove) {
blk_mq_destroy_queue(ctrl->ctrl.admin_q);
blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
}
if (ctrl->async_event_sqe.data) {
cancel_work_sync(&ctrl->ctrl.async_event_work);
nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
@ -887,26 +844,19 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
goto out_free_queue;
if (new) {
error = nvme_rdma_alloc_admin_tag_set(&ctrl->ctrl);
error = nvme_alloc_admin_tag_set(&ctrl->ctrl,
&ctrl->admin_tag_set, &nvme_rdma_admin_mq_ops,
BLK_MQ_F_NO_SCHED,
sizeof(struct nvme_rdma_request) +
NVME_RDMA_DATA_SGL_SIZE);
if (error)
goto out_free_async_qe;
ctrl->ctrl.fabrics_q = blk_mq_init_queue(&ctrl->admin_tag_set);
if (IS_ERR(ctrl->ctrl.fabrics_q)) {
error = PTR_ERR(ctrl->ctrl.fabrics_q);
goto out_free_tagset;
}
ctrl->ctrl.admin_q = blk_mq_init_queue(&ctrl->admin_tag_set);
if (IS_ERR(ctrl->ctrl.admin_q)) {
error = PTR_ERR(ctrl->ctrl.admin_q);
goto out_cleanup_fabrics_q;
}
}
error = nvme_rdma_start_queue(ctrl, 0);
if (error)
goto out_cleanup_queue;
goto out_remove_admin_tag_set;
error = nvme_enable_ctrl(&ctrl->ctrl);
if (error)
@ -933,15 +883,9 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
out_stop_queue:
nvme_rdma_stop_queue(&ctrl->queues[0]);
nvme_cancel_admin_tagset(&ctrl->ctrl);
out_cleanup_queue:
out_remove_admin_tag_set:
if (new)
blk_mq_destroy_queue(ctrl->ctrl.admin_q);
out_cleanup_fabrics_q:
if (new)
blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
out_free_tagset:
if (new)
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
nvme_remove_admin_tag_set(&ctrl->ctrl);
out_free_async_qe:
if (ctrl->async_event_sqe.data) {
nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
@ -953,16 +897,6 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
return error;
}
static void nvme_rdma_destroy_io_queues(struct nvme_rdma_ctrl *ctrl,
bool remove)
{
if (remove) {
blk_mq_destroy_queue(ctrl->ctrl.connect_q);
blk_mq_free_tag_set(ctrl->ctrl.tagset);
}
nvme_rdma_free_io_queues(ctrl);
}
static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
{
int ret, nr_queues;
@ -975,10 +909,6 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
ret = nvme_rdma_alloc_tag_set(&ctrl->ctrl);
if (ret)
goto out_free_io_queues;
ret = nvme_ctrl_init_connect_q(&(ctrl->ctrl));
if (ret)
goto out_free_tag_set;
}
/*
@ -989,7 +919,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
nr_queues = min(ctrl->tag_set.nr_hw_queues + 1, ctrl->ctrl.queue_count);
ret = nvme_rdma_start_io_queues(ctrl, 1, nr_queues);
if (ret)
goto out_cleanup_connect_q;
goto out_cleanup_tagset;
if (!new) {
nvme_start_queues(&ctrl->ctrl);
@ -1022,13 +952,10 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
nvme_stop_queues(&ctrl->ctrl);
nvme_sync_io_queues(&ctrl->ctrl);
nvme_rdma_stop_io_queues(ctrl);
out_cleanup_connect_q:
out_cleanup_tagset:
nvme_cancel_tagset(&ctrl->ctrl);
if (new)
blk_mq_destroy_queue(ctrl->ctrl.connect_q);
out_free_tag_set:
if (new)
blk_mq_free_tag_set(ctrl->ctrl.tagset);
nvme_remove_io_tag_set(&ctrl->ctrl);
out_free_io_queues:
nvme_rdma_free_io_queues(ctrl);
return ret;
@ -1041,9 +968,11 @@ static void nvme_rdma_teardown_admin_queue(struct nvme_rdma_ctrl *ctrl,
blk_sync_queue(ctrl->ctrl.admin_q);
nvme_rdma_stop_queue(&ctrl->queues[0]);
nvme_cancel_admin_tagset(&ctrl->ctrl);
if (remove)
if (remove) {
nvme_start_admin_queue(&ctrl->ctrl);
nvme_rdma_destroy_admin_queue(ctrl, remove);
nvme_remove_admin_tag_set(&ctrl->ctrl);
}
nvme_rdma_destroy_admin_queue(ctrl);
}
static void nvme_rdma_teardown_io_queues(struct nvme_rdma_ctrl *ctrl,
@ -1055,9 +984,11 @@ static void nvme_rdma_teardown_io_queues(struct nvme_rdma_ctrl *ctrl,
nvme_sync_io_queues(&ctrl->ctrl);
nvme_rdma_stop_io_queues(ctrl);
nvme_cancel_tagset(&ctrl->ctrl);
if (remove)
if (remove) {
nvme_start_queues(&ctrl->ctrl);
nvme_rdma_destroy_io_queues(ctrl, remove);
nvme_remove_io_tag_set(&ctrl->ctrl);
}
nvme_rdma_free_io_queues(ctrl);
}
}
@ -1179,14 +1110,18 @@ static int nvme_rdma_setup_ctrl(struct nvme_rdma_ctrl *ctrl, bool new)
nvme_sync_io_queues(&ctrl->ctrl);
nvme_rdma_stop_io_queues(ctrl);
nvme_cancel_tagset(&ctrl->ctrl);
nvme_rdma_destroy_io_queues(ctrl, new);
if (new)
nvme_remove_io_tag_set(&ctrl->ctrl);
nvme_rdma_free_io_queues(ctrl);
}
destroy_admin:
nvme_stop_admin_queue(&ctrl->ctrl);
blk_sync_queue(ctrl->ctrl.admin_q);
nvme_rdma_stop_queue(&ctrl->queues[0]);
nvme_cancel_admin_tagset(&ctrl->ctrl);
nvme_rdma_destroy_admin_queue(ctrl, new);
if (new)
nvme_remove_admin_tag_set(&ctrl->ctrl);
nvme_rdma_destroy_admin_queue(ctrl);
return ret;
}