6.6-stable review patch. If anyone has any objections, please let me know.
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From: Anumula Murali Mohan Reddy anumula@chelsio.com
[ Upstream commit 5069d7e202f640a36cf213a432296c85113a52f7 ]
If traffic is over vlan, cma_validate_port() fails to match vlan net_device ifindex with bound_if_index and results in ENODEV error. It is because rdma_copy_src_l2_addr() always assigns bound_if_index with real net_device ifindex. This patch fixes the issue by assigning bound_if_index with vlan net_device index if traffic is over vlan.
Fixes: f8ef1be816bf ("RDMA/cma: Avoid GID lookups on iWARP devices") Signed-off-by: Anumula Murali Mohan Reddy anumula@chelsio.com Signed-off-by: Potnuri Bharat Teja bharat@chelsio.com Link: https://patch.msgid.link/20241008114334.146702-1-anumula@chelsio.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/core/addr.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index f253295795f0a..fd78d678877c4 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -269,6 +269,8 @@ rdma_find_ndev_for_src_ip_rcu(struct net *net, const struct sockaddr *src_in) break; #endif } + if (!ret && dev && is_vlan_dev(dev)) + dev = vlan_dev_real_dev(dev); return ret ? ERR_PTR(ret) : dev; }