]> git.baikalelectronics.ru Git - kernel.git/commit
net/mlx5e: E-Switch, Offload all chain 0 priorities when modify header and forward...
authorJianbo Liu <jianbol@mellanox.com>
Tue, 12 Jan 2021 07:05:27 +0000 (23:05 -0800)
committerJakub Kicinski <kuba@kernel.org>
Wed, 13 Jan 2021 23:45:54 +0000 (15:45 -0800)
commiteac191c17fc7e0bd530e32dd3f6793fe695c4eef
tree2dff39d0b9ef7bf70af65ae12e0d6ad290d986b6
parent46ab9f729b49187f99e87f61b2d89558ad293170
net/mlx5e: E-Switch, Offload all chain 0 priorities when modify header and forward action is not supported

Miss path handling of tc multi chain filters (i.e. filters that are
defined on chain > 0) requires the hardware to communicate to the
driver the last chain that was processed. This is possible only when
the hardware is capable of performing the combination of modify header
and forward to table actions. Currently, if the hardware is missing
this capability then the driver only offloads rules that are defined
on tc chain 0 prio 1. However, this restriction can be relaxed because
packets that miss from chain 0 are processed through all the
priorities by tc software.

Allow the offload of all the supported priorities for chain 0 even
when the hardware is not capable to perform modify header and goto
table actions.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c