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net/mlx4_core: Support mirroring VF DMFS rules on both ports
Under HA mode, steering rules set by VFs should be mirrored on both ports of the device so packets will be accepted no matter on which port they arrived. Since getting into HA mode is done dynamically when the user bonds mlx4 Ethernet netdevs, we keep hold of the VF DMFS rule mbox with the port value flipped (1->2,2->1) and execute the mirroring when getting into HA mode. Later, when going out of HA mode, we unset the mirrored rules. In that context note that mirrored rules cannot be removed explicitly. Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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