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nvme-rdma: introduce configure/destroy io queues 

Make a symmetrical handling with admin queue.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
hifive-unleashed-5.1
Sagi Grimberg 2017-08-28 21:41:10 +02:00
parent 31fdf18401
commit a57bd54122
1 changed files with 83 additions and 83 deletions
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166
drivers/nvme/host/rdma.c
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@ -562,22 +562,20 @@ out_destroy_cm_id:
static void nvme_rdma_stop_queue(struct nvme_rdma_queue *queue)
{
if (!test_and_clear_bit(NVME_RDMA_Q_LIVE, &queue->flags))
return;
rdma_disconnect(queue->cm_id);
ib_drain_qp(queue->qp);
}
static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue)
{
nvme_rdma_destroy_queue_ib(queue);
rdma_destroy_id(queue->cm_id);
}
static void nvme_rdma_stop_and_free_queue(struct nvme_rdma_queue *queue)
{
if (test_and_set_bit(NVME_RDMA_Q_DELETING, &queue->flags))
return;
nvme_rdma_stop_queue(queue);
nvme_rdma_free_queue(queue);
nvme_rdma_destroy_queue_ib(queue);
rdma_destroy_id(queue->cm_id);
}
static void nvme_rdma_free_io_queues(struct nvme_rdma_ctrl *ctrl)
@ -585,7 +583,15 @@ static void nvme_rdma_free_io_queues(struct nvme_rdma_ctrl *ctrl)
int i;
for (i = 1; i < ctrl->ctrl.queue_count; i++)
nvme_rdma_stop_and_free_queue(&ctrl->queues[i]);
nvme_rdma_free_queue(&ctrl->queues[i]);
}
static void nvme_rdma_stop_io_queues(struct nvme_rdma_ctrl *ctrl)
{
int i;
for (i = 1; i < ctrl->ctrl.queue_count; i++)
nvme_rdma_stop_queue(&ctrl->queues[i]);
}
static int nvme_rdma_connect_io_queues(struct nvme_rdma_ctrl *ctrl)
@ -597,15 +603,15 @@ static int nvme_rdma_connect_io_queues(struct nvme_rdma_ctrl *ctrl)
if (ret) {
dev_info(ctrl->ctrl.device,
"failed to connect i/o queue: %d\n", ret);
goto out_free_queues;
goto out_stop_queues;
}
set_bit(NVME_RDMA_Q_LIVE, &ctrl->queues[i].flags);
}
return 0;
out_free_queues:
nvme_rdma_free_io_queues(ctrl);
out_stop_queues:
nvme_rdma_stop_io_queues(ctrl);
return ret;
}
@ -641,7 +647,7 @@ static int nvme_rdma_init_io_queues(struct nvme_rdma_ctrl *ctrl)
out_free_queues:
for (i--; i >= 1; i--)
nvme_rdma_stop_and_free_queue(&ctrl->queues[i]);
nvme_rdma_free_queue(&ctrl->queues[i]);
return ret;
}
@ -717,11 +723,12 @@ static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
{
nvme_rdma_free_qe(ctrl->queues[0].device->dev, &ctrl->async_event_sqe,
sizeof(struct nvme_command), DMA_TO_DEVICE);
nvme_rdma_stop_and_free_queue(&ctrl->queues[0]);
nvme_rdma_stop_queue(&ctrl->queues[0]);
if (remove) {
blk_cleanup_queue(ctrl->ctrl.admin_q);
nvme_rdma_free_tagset(&ctrl->ctrl, true);
}
nvme_rdma_free_queue(&ctrl->queues[0]);
}
static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
@ -802,6 +809,62 @@ out_free_queue:
return error;
}
static void nvme_rdma_destroy_io_queues(struct nvme_rdma_ctrl *ctrl,
bool remove)
{
nvme_rdma_stop_io_queues(ctrl);
if (remove) {
blk_cleanup_queue(ctrl->ctrl.connect_q);
nvme_rdma_free_tagset(&ctrl->ctrl, false);
}
nvme_rdma_free_io_queues(ctrl);
}
static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
{
int ret;
ret = nvme_rdma_init_io_queues(ctrl);
if (ret)
return ret;
if (new) {
ctrl->ctrl.tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, false);
if (IS_ERR(ctrl->ctrl.tagset))
goto out_free_io_queues;
ctrl->ctrl.connect_q = blk_mq_init_queue(&ctrl->tag_set);
if (IS_ERR(ctrl->ctrl.connect_q)) {
ret = PTR_ERR(ctrl->ctrl.connect_q);
goto out_free_tag_set;
}
} else {
ret = blk_mq_reinit_tagset(&ctrl->tag_set,
nvme_rdma_reinit_request);
if (ret)
goto out_free_io_queues;
blk_mq_update_nr_hw_queues(&ctrl->tag_set,
ctrl->ctrl.queue_count - 1);
}
ret = nvme_rdma_connect_io_queues(ctrl);
if (ret)
goto out_cleanup_connect_q;
return 0;
out_cleanup_connect_q:
if (new)
blk_cleanup_queue(ctrl->ctrl.connect_q);
out_free_tag_set:
if (new)
nvme_rdma_free_tagset(&ctrl->ctrl, false);
out_free_io_queues:
nvme_rdma_free_io_queues(ctrl);
return ret;
}
static void nvme_rdma_free_ctrl(struct nvme_ctrl *nctrl)
{
struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
@ -848,14 +911,8 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
++ctrl->ctrl.nr_reconnects;
if (ctrl->ctrl.queue_count > 1) {
nvme_rdma_free_io_queues(ctrl);
ret = blk_mq_reinit_tagset(&ctrl->tag_set,
nvme_rdma_reinit_request);
if (ret)
goto requeue;
}
if (ctrl->ctrl.queue_count > 1)
nvme_rdma_destroy_io_queues(ctrl, false);
nvme_rdma_destroy_admin_queue(ctrl, false);
ret = nvme_rdma_configure_admin_queue(ctrl, false);
@ -863,16 +920,9 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
goto requeue;
if (ctrl->ctrl.queue_count > 1) {
ret = nvme_rdma_init_io_queues(ctrl);
ret = nvme_rdma_configure_io_queues(ctrl, false);
if (ret)
goto requeue;
ret = nvme_rdma_connect_io_queues(ctrl);
if (ret)
goto requeue;
blk_mq_update_nr_hw_queues(&ctrl->tag_set,
ctrl->ctrl.queue_count - 1);
}
changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
@ -1659,7 +1709,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
nvme_stop_queues(&ctrl->ctrl);
blk_mq_tagset_busy_iter(&ctrl->tag_set,
nvme_cancel_request, &ctrl->ctrl);
nvme_rdma_free_io_queues(ctrl);
nvme_rdma_destroy_io_queues(ctrl, shutdown);
}
if (shutdown)
@ -1682,11 +1732,6 @@ static void __nvme_rdma_remove_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
nvme_rdma_shutdown_ctrl(ctrl, shutdown);
nvme_uninit_ctrl(&ctrl->ctrl);
if (ctrl->ctrl.tagset) {
blk_cleanup_queue(ctrl->ctrl.connect_q);
nvme_rdma_free_tagset(&ctrl->ctrl, false);
}
nvme_put_ctrl(&ctrl->ctrl);
}
@ -1753,21 +1798,9 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
}
if (ctrl->ctrl.queue_count > 1) {
ret = blk_mq_reinit_tagset(&ctrl->tag_set,
nvme_rdma_reinit_request);
ret = nvme_rdma_configure_io_queues(ctrl, false);
if (ret)
goto del_dead_ctrl;
ret = nvme_rdma_init_io_queues(ctrl);
if (ret)
goto del_dead_ctrl;
ret = nvme_rdma_connect_io_queues(ctrl);
if (ret)
goto del_dead_ctrl;
blk_mq_update_nr_hw_queues(&ctrl->tag_set,
ctrl->ctrl.queue_count - 1);
}
changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
@ -1796,39 +1829,6 @@ static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
.get_address = nvmf_get_address,
};
static int nvme_rdma_create_io_queues(struct nvme_rdma_ctrl *ctrl)
{
int ret;
ret = nvme_rdma_init_io_queues(ctrl);
if (ret)
return ret;
ctrl->ctrl.tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, true);
if (IS_ERR(ctrl->ctrl.tagset))
goto out_free_io_queues;
ctrl->ctrl.connect_q = blk_mq_init_queue(&ctrl->tag_set);
if (IS_ERR(ctrl->ctrl.connect_q)) {
ret = PTR_ERR(ctrl->ctrl.connect_q);
goto out_free_tag_set;
}
ret = nvme_rdma_connect_io_queues(ctrl);
if (ret)
goto out_cleanup_connect_q;
return 0;
out_cleanup_connect_q:
blk_cleanup_queue(ctrl->ctrl.connect_q);
out_free_tag_set:
nvme_rdma_free_tagset(&ctrl->ctrl, false);
out_free_io_queues:
nvme_rdma_free_io_queues(ctrl);
return ret;
}
static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
struct nvmf_ctrl_options *opts)
{
@ -1921,7 +1921,7 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
}
if (opts->nr_io_queues) {
ret = nvme_rdma_create_io_queues(ctrl);
ret = nvme_rdma_configure_io_queues(ctrl, true);
if (ret)
goto out_remove_admin_queue;
}