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IB/mlx5: Fix represent correct netdevice in dual port RoCE 

In commit bcf87f1dbb ("IB/mlx5: Listen to netdev register/unresiter events in switchdev mode")
incorrectly mapped primary device's netdevice to 2nd port netdevice.
It always represented primary port's netdevice for 2nd port netdevice
when ib representors were not used.

This results into failing to process CM request arriving on 2nd port due
to incorrect mapping of netdevice.

This fix corrects it by considering the right mdev.

Cc: <stable@vger.kernel.org> # 4.16
Fixes: bcf87f1dbb ("IB/mlx5: Listen to netdev register/unresiter events in switchdev mode")
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Parav Pandit 2018-04-23 17:01:55 +03:00 committed by Doug Ledford
parent 4f32ac2e45
commit 84a6a7a99c
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mlx5/main.c
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@ -179,7 +179,7 @@ static int mlx5_netdev_event(struct notifier_block *this,
if (rep_ndev == ndev)
roce->netdev = (event == NETDEV_UNREGISTER) ?
NULL : ndev;
} else if (ndev->dev.parent == &ibdev->mdev->pdev->dev) {
} else if (ndev->dev.parent == &mdev->pdev->dev) {
roce->netdev = (event == NETDEV_UNREGISTER) ?
NULL : ndev;
}