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svcrdma: Support IPv6 with NFS/RDMA

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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>
This commit is contained in:
Shirley Ma 2016-05-04 10:52:47 -04:00 committed by J. Bruce Fields
parent 14b7f4a1ed
commit 696190eaf1
1 changed files with 11 additions and 1 deletions
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12
net/sunrpc/xprtrdma/svc_rdma_transport.c
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@ -789,7 +789,7 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
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 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
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);