NFS: enable nconnect for RDMA

jira LE-2522
Rebuild_History Non-Buildable kernel-5.14.0-503.29.1.el9_5
commit-author Trond Myklebust <trond.myklebust@hammerspace.com>
commit b326df4

It appears that in certain cases, RDMA capable transports can benefit
from the ability to establish multiple connections to increase their
throughput. This patch therefore enables the use of the "nconnect" mount
option for those use cases.

	Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
(cherry picked from commit b326df4)
	Signed-off-by: Jonathan Maple <jmaple@ciq.com>

Author: PlaidCat

fs/nfs/nfs3client.c

@@ -111,6 +111,7 @@ struct nfs_client *nfs3_set_ds_client(struct nfs_server *mds_srv,
 	cl_init.hostname = buf;
 
 	switch (ds_proto) {
+	case XPRT_TRANSPORT_RDMA:
 	case XPRT_TRANSPORT_TCP:
 	case XPRT_TRANSPORT_TCP_TLS:
 		if (mds_clp->cl_nconnect > 1)

fs/nfs/nfs4client.c

@@ -923,6 +923,7 @@ static int nfs4_set_client(struct nfs_server *server,
 	else
 		cl_init.max_connect = max_connect;
 	switch (proto) {
+	case XPRT_TRANSPORT_RDMA:
 	case XPRT_TRANSPORT_TCP:
 	case XPRT_TRANSPORT_TCP_TLS:
 		cl_init.nconnect = nconnect;
@@ -999,6 +1000,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
 	cl_init.hostname = buf;
 
 	switch (ds_proto) {
+	case XPRT_TRANSPORT_RDMA:
 	case XPRT_TRANSPORT_TCP:
 	case XPRT_TRANSPORT_TCP_TLS:
 		if (mds_clp->cl_nconnect > 1) {