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authorShirley Ma <shirley.ma@oracle.com>2016-05-02 14:40:23 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-05-17 15:47:56 -0400
commit181342c5ebe8cc31f75b80ace18ae8a89a0c145a (patch)
treef340eb57a294cba452a80ed3c822a921104e689e /fs/nfs/super.c
parenta1d1c4f11adf8a0036cd40a643543047fc952eb6 (diff)
downloadleg-kernel-181342c5ebe8cc31f75b80ace18ae8a89a0c145a.tar.gz
xprtrdma: Add rdma6 option to support NFS/RDMA IPv6
RFC 5666: The "rdma" netid is to be used when IPv4 addressing is employed by the underlying transport, and "rdma6" for IPv6 addressing. Add mount -o proto=rdma6 option to support NFS/RDMA IPv6 addressing. Changes from v2: - Integrated comments from Chuck Level, Anna Schumaker, Trodt Myklebust - Add a little more to the patch description to describe NFS/RDMA IPv6 suggested by Chuck Level and Anna Schumaker - Removed duplicated rdma6 define - Remove Opt_xprt_rdma mountfamily since it doesn't support Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r--fs/nfs/super.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ff537a205188..2137e0202f25 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -191,6 +191,7 @@ static const match_table_t nfs_mount_option_tokens = {
enum {
Opt_xprt_udp, Opt_xprt_udp6, Opt_xprt_tcp, Opt_xprt_tcp6, Opt_xprt_rdma,
+ Opt_xprt_rdma6,
Opt_xprt_err
};
@@ -201,6 +202,7 @@ static const match_table_t nfs_xprt_protocol_tokens = {
{ Opt_xprt_tcp, "tcp" },
{ Opt_xprt_tcp6, "tcp6" },
{ Opt_xprt_rdma, "rdma" },
+ { Opt_xprt_rdma6, "rdma6" },
{ Opt_xprt_err, NULL }
};
@@ -1456,6 +1458,8 @@ static int nfs_parse_mount_options(char *raw,
mnt->flags |= NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_TCP;
break;
+ case Opt_xprt_rdma6:
+ protofamily = AF_INET6;
case Opt_xprt_rdma:
/* vector side protocols to TCP */
mnt->flags |= NFS_MOUNT_TCP;