diff options
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index b7a5bc1341b4..be66f658308c 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -554,6 +554,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, ep->rep_attr.recv_cq = recvcq; /* Initialize cma parameters */ + memset(&ep->rep_remote_cma, 0, sizeof(ep->rep_remote_cma)); /* RPC/RDMA does not use private data */ ep->rep_remote_cma.private_data = NULL; @@ -567,7 +568,16 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, ep->rep_remote_cma.responder_resources = ia->ri_device->attrs.max_qp_rd_atom; - ep->rep_remote_cma.retry_count = 7; + /* Limit transport retries so client can detect server + * GID changes quickly. RPC layer handles re-establishing + * transport connection and retransmission. + */ + ep->rep_remote_cma.retry_count = 6; + + /* RPC-over-RDMA handles its own flow control. In addition, + * make all RNR NAKs visible so we know that RPC-over-RDMA + * flow control is working correctly (no NAKs should be seen). + */ ep->rep_remote_cma.flow_control = 0; ep->rep_remote_cma.rnr_retry_count = 0; |