net/mlx5e: Optimize promiscuous mode

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Change steering flow to optimize traffic in promiscuous mode. On demand,
add a high priority table containing a catch-all rule. All incoming
packets are caught by this rule and steered directly to the TTC table.
Prior to this change, packets in promiscuous mode may suffer from up to
4 steering hops before reaching TTC table.
In addition, this patch will allow us adding a catch-all rule at the end
of MAC table to serve MAC trap, with no impact on promiscuous mode
performance.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Aya Levin 2021-01-26 15:24:12 -08:00 • committed by Jakub Kicinski

parent 241dc15939

commit 1c46d7409f

3 changed files with 100 additions and 34 deletions

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10

drivers/net/ethernet/mellanox/mlx5/core/en/fs.h

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120

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

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4

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

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