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nvme-rdma: make nvme_rdma_[create|destroy]_queue_ib symmetrical

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We put the reference on the device in the destroy routine
so we should lookup and take the reference in the create
routine.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2017-05-04 13:33:09 +03:00 committed by Christoph Hellwig
parent c8295d1112
commit ca6e95bb0a
1 changed files with 18 additions and 24 deletions
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42
drivers/nvme/host/rdma.c
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@ -480,17 +480,21 @@ static void nvme_rdma_destroy_queue_ib(struct nvme_rdma_queue *queue)
nvme_rdma_dev_put(dev);
}
static int nvme_rdma_create_queue_ib(struct nvme_rdma_queue *queue,
struct nvme_rdma_device *dev)
static int nvme_rdma_create_queue_ib(struct nvme_rdma_queue *queue)
{
struct ib_device *ibdev = dev->dev;
struct ib_device *ibdev;
const int send_wr_factor = 3; /* MR, SEND, INV */
const int cq_factor = send_wr_factor + 1; /* + RECV */
int comp_vector, idx = nvme_rdma_queue_idx(queue);
int ret;
queue->device = dev;
queue->device = nvme_rdma_find_get_device(queue->cm_id);
if (!queue->device) {
dev_err(queue->cm_id->device->dev.parent,
"no client data found!\n");
return -ECONNREFUSED;
}
ibdev = queue->device->dev;
/*
* The admin queue is barely used once the controller is live, so don't
@ -503,12 +507,12 @@ static int nvme_rdma_create_queue_ib(struct nvme_rdma_queue *queue,
/* +1 for ib_stop_cq */
queue->ib_cq = ib_alloc_cq(dev->dev, queue,
cq_factor * queue->queue_size + 1, comp_vector,
IB_POLL_SOFTIRQ);
queue->ib_cq = ib_alloc_cq(ibdev, queue,
cq_factor * queue->queue_size + 1,
comp_vector, IB_POLL_SOFTIRQ);
if (IS_ERR(queue->ib_cq)) {
ret = PTR_ERR(queue->ib_cq);
goto out;
goto out_put_dev;
}
ret = nvme_rdma_create_qp(queue, send_wr_factor);
@ -529,7 +533,8 @@ out_destroy_qp:
ib_destroy_qp(queue->qp);
out_destroy_ib_cq:
ib_free_cq(queue->ib_cq);
out:
out_put_dev:
nvme_rdma_dev_put(queue->device);
return ret;
}
@ -1275,21 +1280,11 @@ static int nvme_rdma_conn_rejected(struct nvme_rdma_queue *queue,
static int nvme_rdma_addr_resolved(struct nvme_rdma_queue *queue)
{
struct nvme_rdma_device *dev;
int ret;
dev = nvme_rdma_find_get_device(queue->cm_id);
if (!dev) {
dev_err(queue->cm_id->device->dev.parent,
"no client data found!\n");
return -ECONNREFUSED;
}
ret = nvme_rdma_create_queue_ib(queue, dev);
if (ret) {
nvme_rdma_dev_put(dev);
goto out;
}
ret = nvme_rdma_create_queue_ib(queue);
if (ret)
return ret;
ret = rdma_resolve_route(queue->cm_id, NVME_RDMA_CONNECT_TIMEOUT_MS);
if (ret) {
@ -1303,7 +1298,6 @@ static int nvme_rdma_addr_resolved(struct nvme_rdma_queue *queue)
out_destroy_queue:
nvme_rdma_destroy_queue_ib(queue);
out:
return ret;
}