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nvme: introduce nvme_reinit_tagset 

Move blk_mq_reinit_tagset from blk-mq to nvme core
as the only user of it. Current transports that use
it (rdma, fc) simply implement .reinit_request op.

This patch does not change any functionality.

Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2017-10-11 12:53:07 +03:00 committed by Christoph Hellwig
parent 149e10f8ff
commit 31b8446079
4 changed files with 17 additions and 5 deletions
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10
drivers/nvme/host/core.c
View File

@ -2934,6 +2934,16 @@ void nvme_start_queues(struct nvme_ctrl *ctrl)
}
EXPORT_SYMBOL_GPL(nvme_start_queues);
int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set)
{
if (!ctrl->ops->reinit_request)
return 0;
return blk_mq_tagset_iter(set, set->driver_data,
ctrl->ops->reinit_request);
}
EXPORT_SYMBOL_GPL(nvme_reinit_tagset);
int __init nvme_core_init(void)
{
int result;

3
drivers/nvme/host/fc.c
View File

@ -2393,7 +2393,7 @@ nvme_fc_reinit_io_queues(struct nvme_fc_ctrl *ctrl)
nvme_fc_init_io_queues(ctrl);
ret = blk_mq_reinit_tagset(&ctrl->tag_set, nvme_fc_reinit_request);
ret = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
if (ret)
goto out_free_io_queues;
@ -2753,6 +2753,7 @@ static const struct nvme_ctrl_ops nvme_fc_ctrl_ops = {
.submit_async_event = nvme_fc_submit_async_event,
.delete_ctrl = nvme_fc_del_nvme_ctrl,
.get_address = nvmf_get_address,
.reinit_request = nvme_fc_reinit_request,
};
static void

2
drivers/nvme/host/nvme.h
View File

@ -237,6 +237,7 @@ struct nvme_ctrl_ops {
void (*submit_async_event)(struct nvme_ctrl *ctrl, int aer_idx);
int (*delete_ctrl)(struct nvme_ctrl *ctrl);
int (*get_address)(struct nvme_ctrl *ctrl, char *buf, int size);
int (*reinit_request)(void *data, struct request *rq);
};
static inline bool nvme_ctrl_ready(struct nvme_ctrl *ctrl)
@ -311,6 +312,7 @@ void nvme_unfreeze(struct nvme_ctrl *ctrl);
void nvme_wait_freeze(struct nvme_ctrl *ctrl);
void nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout);
void nvme_start_freeze(struct nvme_ctrl *ctrl);
int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set);
#define NVME_QID_ANY -1
struct request *nvme_alloc_request(struct request_queue *q,

7
drivers/nvme/host/rdma.c
View File

@ -774,8 +774,7 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
goto out_free_tagset;
}
} else {
error = blk_mq_reinit_tagset(&ctrl->admin_tag_set,
nvme_rdma_reinit_request);
error = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset);
if (error)
goto out_free_queue;
}
@ -855,8 +854,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
goto out_free_tag_set;
}
} else {
ret = blk_mq_reinit_tagset(&ctrl->tag_set,
nvme_rdma_reinit_request);
ret = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
if (ret)
goto out_free_io_queues;
@ -1845,6 +1843,7 @@ static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
.submit_async_event = nvme_rdma_submit_async_event,
.delete_ctrl = nvme_rdma_del_ctrl,
.get_address = nvmf_get_address,
.reinit_request = nvme_rdma_reinit_request,
};
static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,