mlxsw: spectrum: Use dedicated trap group for ACL trap

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Packets that are trapped via tc's trap action are currently subject to
the same policer as packets hitting local routes. The latter are
critical to the correct functioning of the control plane, while the
former are mainly used for traffic inspection.

Split the ACL trap to a separate group with its own policer. Use a
higher priority for these traps than for traps using mirror action
(e.g., ARP, IGMP). Otherwise, packets matching both traps will not be
forwarded in hardware (because of trap action) and also not forwarded in
software because they will be marked with 'offload_fwd_mark'.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ido Schimmel 2020-05-26 02:05:43 +03:00 • committed by David S. Miller

parent 4e637c70b5

commit 3c2d8a046a

2 changed files with 4 additions and 1 deletions

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1

drivers/net/ethernet/mellanox/mlxsw/reg.h

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4

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

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