svcrdma: Support IPv6 with NFS/RDMA
Allow both IPv4 and IPv6 to bind same port at the same time,
restricts use of the IPv6 socket to IPv6 communication.
Changes from v1:
- Check rdma_set_afonly return value (suggested by Leon Romanovsky)
Changes from v2:
- Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Shirley Ma <shirley.ma@oracle.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 9066896..d2680b8 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -789,7 +789,7 @@
int ret;
dprintk("svcrdma: Creating RDMA socket\n");
- if (sa->sa_family != AF_INET) {
+ if ((sa->sa_family != AF_INET) && (sa->sa_family != AF_INET6)) {
dprintk("svcrdma: Address family %d is not supported.\n", sa->sa_family);
return ERR_PTR(-EAFNOSUPPORT);
}
@@ -805,6 +805,16 @@
goto err0;
}
+ /* Allow both IPv4 and IPv6 sockets to bind a single port
+ * at the same time.
+ */
+#if IS_ENABLED(CONFIG_IPV6)
+ ret = rdma_set_afonly(listen_id, 1);
+ if (ret) {
+ dprintk("svcrdma: rdma_set_afonly failed = %d\n", ret);
+ goto err1;
+ }
+#endif
ret = rdma_bind_addr(listen_id, sa);
if (ret) {
dprintk("svcrdma: rdma_bind_addr failed = %d\n", ret);