net/mlx5e: Add support for tc trap

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Support tc trap such that packets can explicitly be forwarded to slow
path if they match a specific rule.

In the example below, we want packets with src IP equals 7.7.7.8 to be
forwarded to software, in which case it will get to the appropriate
representor net device.

$ tc filter add dev eth1 protocol ip prio 1 root flower skip_sw \
    src_ip 7.7.7.8 action trap

Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

...

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Eli Cohen 2020-08-23 15:54:43 +03:00 • committed by Saeed Mahameed

parent cd1ef96621

commit f02882102b

1 changed files with 10 additions and 0 deletions

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

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