net/mlx5: E-Switch, Restore chain id on miss

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Chain ids are mapped to the lower part of reg C, and after loopback
are copied to to CQE via a restore rule's flow_tag.

To let tc continue in the correct chain, we find the corresponding
chain id in the eswitch chain id <-> reg C mapping, and set the SKB's
tc extension chain to it.

That tells tc to continue processing from this set chain.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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Paul Blakey 2020-02-16 12:01:30 +02:00 • committed by Saeed Mahameed

parent dfd9e7500c

commit d6d2778286

3 changed files with 51 additions and 0 deletions

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6

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

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43

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

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2

drivers/net/ethernet/mellanox/mlx5/core/en_tc.h

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