nvmet-rdma: implement host_traddr()

Implement callback to display the host transport address.

Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>

diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 498b3ca..1eff8ca 100644 (file)
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -2000,6 +2000,17 @@ static void nvmet_rdma_disc_port_addr(struct nvmet_req *req,
        }
 }
 
+static ssize_t nvmet_rdma_host_port_addr(struct nvmet_ctrl *ctrl,
+               char *traddr, size_t traddr_len)
+{
+       struct nvmet_sq *nvme_sq = ctrl->sqs[0];
+       struct nvmet_rdma_queue *queue =
+               container_of(nvme_sq, struct nvmet_rdma_queue, nvme_sq);
+
+       return snprintf(traddr, traddr_len, "%pISc",
+                       (struct sockaddr *)&queue->cm_id->route.addr.dst_addr);
+}
+
 static u8 nvmet_rdma_get_mdts(const struct nvmet_ctrl *ctrl)
 {
        if (ctrl->pi_support)
@@ -2024,6 +2035,7 @@ static const struct nvmet_fabrics_ops nvmet_rdma_ops = {
        .queue_response         = nvmet_rdma_queue_response,
        .delete_ctrl            = nvmet_rdma_delete_ctrl,
        .disc_traddr            = nvmet_rdma_disc_port_addr,
+       .host_traddr            = nvmet_rdma_host_port_addr,
        .get_mdts               = nvmet_rdma_get_mdts,
        .get_max_queue_size     = nvmet_rdma_get_max_queue_size,
 };