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RDMA/core: Fix ENODEV error for iWARP test over vlan 

[ 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: f8ef1be816 ("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>
This commit is contained in:
Anumula Murali Mohan Reddy 2024-10-08 17:13:34 +05:30 committed by Greg Kroah-Hartman
parent c71957271f
commit b7bf17f4f9
1 changed files with 2 additions and 0 deletions
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2
drivers/infiniband/core/addr.c
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@ -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;
}