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authorJames Smart <jsmart2021@gmail.com>2018-06-14 00:07:38 +0300
committerChristoph Hellwig <hch@lst.de>2018-06-14 18:01:01 +0300
commit3e493c00cedb457c0731399a835f7ba1c6df172b (patch)
tree361f4445613dc57ec439ff0347fcf69a91a664f0 /drivers/nvme
parent587331f71e2748371526597cafc72e5732c67e88 (diff)
downloadlinux-3e493c00cedb457c0731399a835f7ba1c6df172b.tar.xz
nvme-fc: fix nulling of queue data on reconnect
The reconnect path is calling the init routines to clear a queue structure. But the queue structure has state that perhaps needs to persist as long as the controller is live. Remove the nvme_fc_init_queue() calls on reconnect. The nvme_fc_free_queue() calls will clear state bits and reset any relevant queue state for a new connection. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/fc.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 36e72e64f57d..318e827e74ec 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1879,6 +1879,7 @@ nvme_fc_free_queue(struct nvme_fc_queue *queue)
*/
queue->connection_id = 0;
+ atomic_set(&queue->csn, 1);
}
static void
@@ -2468,7 +2469,7 @@ out_free_tag_set:
}
static int
-nvme_fc_reinit_io_queues(struct nvme_fc_ctrl *ctrl)
+nvme_fc_recreate_io_queues(struct nvme_fc_ctrl *ctrl)
{
struct nvmf_ctrl_options *opts = ctrl->ctrl.opts;
unsigned int nr_io_queues;
@@ -2488,8 +2489,6 @@ nvme_fc_reinit_io_queues(struct nvme_fc_ctrl *ctrl)
if (ctrl->ctrl.queue_count == 1)
return 0;
- nvme_fc_init_io_queues(ctrl);
-
ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
if (ret)
goto out_free_io_queues;
@@ -2587,8 +2586,6 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
* Create the admin queue
*/
- nvme_fc_init_queue(ctrl, 0);
-
ret = __nvme_fc_create_hw_queue(ctrl, &ctrl->queues[0], 0,
NVME_AQ_DEPTH);
if (ret)
@@ -2675,7 +2672,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
if (!ctrl->ioq_live)
ret = nvme_fc_create_io_queues(ctrl);
else
- ret = nvme_fc_reinit_io_queues(ctrl);
+ ret = nvme_fc_recreate_io_queues(ctrl);
if (ret)
goto out_term_aen_ops;
}
@@ -3023,6 +3020,8 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
if (!ctrl->queues)
goto out_free_ida;
+ nvme_fc_init_queue(ctrl, 0);
+
memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set));
ctrl->admin_tag_set.ops = &nvme_fc_admin_mq_ops;
ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH;