From 7f03953c2f28cdb9c31f3f1410ba5be1f385a693 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Wed, 26 Oct 2016 12:36:47 -0700 Subject: [PATCH] nvme-rdma: use rdma connection reject helper functions Also add nvme cm status strings and use them. Reviewed-by: Christoph Hellwig Signed-off-by: Steve Wise Signed-off-by: Doug Ledford --- drivers/nvme/host/rdma.c | 42 ++++++++++++++++++++++++++++++++++------ 1 file changed, 36 insertions(+), 6 deletions(-) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 5a8388177959..accbe8edb6c4 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -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 @@ out_destroy_queue_ib: 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; -- 2.20.1