@@ -690,6 +690,7 @@ cma_validate_port(struct ib_device *device, u32 port,
int bound_if_index = dev_addr->bound_dev_if;
int dev_type = dev_addr->dev_type;
struct net_device *ndev = NULL;
+ struct net_device *pdev = NULL;
if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))
goto out;
@@ -714,6 +715,21 @@ cma_validate_port(struct ib_device *device, u32 port,
rcu_read_lock();
ndev = rcu_dereference(sgid_attr->ndev);
+ if (ndev->ifindex != bound_if_index) {
+ pdev = dev_get_by_index_rcu(dev_addr->net, bound_if_index);
+ if (pdev) {
+ if (is_vlan_dev(pdev)) {
+ pdev = vlan_dev_real_dev(pdev);
+ if (ndev->ifindex == pdev->ifindex)
+ bound_if_index = pdev->ifindex;
+ }
+ if (is_vlan_dev(ndev)) {
+ pdev = vlan_dev_real_dev(ndev);
+ if (bound_if_index == pdev->ifindex)
+ bound_if_index = ndev->ifindex;
+ }
+ }
+ }
if (!net_eq(dev_net(ndev), dev_addr->net) ||
ndev->ifindex != bound_if_index) {
rdma_put_gid_attr(sgid_attr);
If traffic is over vlan, cma_validate_port() fails to match net_device ifindex with bound_if_index and results in ENODEV error. As iWARP gid table is static, it contains entry corresponding to only one net device which is either real netdev or vlan netdev for cases like siw attached to a vlan interface. This patch fixes the issue by assigning bound_if_index with net device index, if real net device obtained from bound if index matches with net device retrieved from gid table Fixes: f8ef1be816bf ("RDMA/cma: Avoid GID lookups on iWARP devices") Link: https://lore.kernel.org/all/ZzNgdrjo1kSCGbRz@chelsio.com/ Signed-off-by: Anumula Murali Mohan Reddy <anumula@chelsio.com> Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com> --- Changes since v1: Addressed previous review comments --- drivers/infiniband/core/cma.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)