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Currently, In NETDEV_CHANGELOWERSTATE/NETDEV_CHANGEUPPERSTATE events
handling, tracking is not fully completed if the LAG device is not ready
at the time the events occur. But, we must keep track of the upper and
lower states after receiving the events because RoCE needs this info in
mlx5_lag_get_roce_netdev() - in order to return the corresponding port
that its running on. Returning the wrong (not most recent) port will lead
to gids table being incorrect.
For example: If during the attachment of a slave to the bond, the other
non-attached port performs pci_reload, then the LAG device is not ready,
but that should not result in dismissing attached slave tracker update
automatically (which is performed in mlx5_handle_changelowerstate()), Since
these events might not come later, which can lead to both bond ports
having tx_enabled=0 - which is not a valid state of LAG bond.
Fixes: 9b412cc35f00 ("net/mlx5e: Add LAG warning if bond slave is not lag master")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Lots of simnple overlapping additions.
With a build fix from Stephen Rothwell.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the steering based solution for select the affinity port
when the LAG mode is based on hash policy and the device support
in port selection flow table.
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Every definer will consist of a flow table with a single hash group
with exactly two flow table entries, one for each device port.
The destination of these entries is the uplink vport according to the
port state and hash policy.
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Downstream patches add another lag related file so it makes
sense to have all the lag files in a dedicated directory.
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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