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net/mlx5: E-Switch, Skip restore modify header between prios of same chain

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Restore modify header writes the chain mapping on the packet.
This modify header and action is added on all prios connections,
and gets overwritten with the same value consecutively in prios
of the same chain.

Use the chain's modify header only for the last prio of a given tc
chain.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Paul Blakey 2020-03-16 14:55:11 +02:00 committed by Saeed Mahameed
parent 0b3a8b6b53
commit e0cb8afdbb
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c
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@ -422,7 +422,7 @@ mlx5_esw_chains_add_miss_rule(struct fdb_chain *fdb_chain,
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
dest.ft = next_fdb;
if (fdb_chain->chain != mlx5_esw_chains_get_ft_chain(esw) &&
if (next_fdb == tc_end_fdb(esw) &&
fdb_modify_header_fwd_to_table_supported(esw)) {
act.modify_hdr = fdb_chain->miss_modify_hdr;
act.action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;