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nvme-rdma: use rdma connection reject helper functions

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Also add nvme cm status strings and use them.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Steve Wise 2016-10-26 12:36:47 -07:00 committed by Doug Ledford
parent 5f24410408
commit 7f03953c2f
1 changed files with 36 additions and 6 deletions
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42
drivers/nvme/host/rdma.c
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@ -43,6 +43,28 @@
#define NVME_RDMA_MAX_INLINE_SEGMENTS 1
static const char *const nvme_rdma_cm_status_strs[] = {
[NVME_RDMA_CM_INVALID_LEN] = "invalid length",
[NVME_RDMA_CM_INVALID_RECFMT] = "invalid record format",
[NVME_RDMA_CM_INVALID_QID] = "invalid queue ID",
[NVME_RDMA_CM_INVALID_HSQSIZE] = "invalid host SQ size",
[NVME_RDMA_CM_INVALID_HRQSIZE] = "invalid host RQ size",
[NVME_RDMA_CM_NO_RSC] = "resource not found",
[NVME_RDMA_CM_INVALID_IRD] = "invalid IRD",
[NVME_RDMA_CM_INVALID_ORD] = "Invalid ORD",
};
static const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status)
{
size_t index = status;
if (index < ARRAY_SIZE(nvme_rdma_cm_status_strs) &&
nvme_rdma_cm_status_strs[index])
return nvme_rdma_cm_status_strs[index];
else
return "unrecognized reason";
};
/*
* We handle AEN commands ourselves and don't even let the
* block layer know about them.
@ -1207,16 +1229,24 @@ static int nvme_rdma_conn_established(struct nvme_rdma_queue *queue)
static int nvme_rdma_conn_rejected(struct nvme_rdma_queue *queue,
struct rdma_cm_event *ev)
{
if (ev->param.conn.private_data_len) {
struct nvme_rdma_cm_rej *rej =
(struct nvme_rdma_cm_rej *)ev->param.conn.private_data;
struct rdma_cm_id *cm_id = queue->cm_id;
int status = ev->status;
const char *rej_msg;
const struct nvme_rdma_cm_rej *rej_data;
u8 rej_data_len;
rej_msg = rdma_reject_msg(cm_id, status);
rej_data = rdma_consumer_reject_data(cm_id, ev, &rej_data_len);
if (rej_data && rej_data_len >= sizeof(u16)) {
u16 sts = le16_to_cpu(rej_data->sts);
dev_err(queue->ctrl->ctrl.device,
"Connect rejected, status %d.", le16_to_cpu(rej->sts));
/* XXX: Think of something clever to do here... */
"Connect rejected: status %d (%s) nvme status %d (%s).\n",
status, rej_msg, sts, nvme_rdma_cm_msg(sts));
} else {
dev_err(queue->ctrl->ctrl.device,
"Connect rejected, no private data.\n");
"Connect rejected: status %d (%s).\n", status, rej_msg);
}
return -ECONNRESET;