mlx4: Add XDP frame size and adjust max XDP MTU

Browse source

The mlx4 drivers size of memory backing the RX packet is stored in
frag_stride. For XDP mode this will be PAGE_SIZE (normally 4096).
For normal mode frag_stride is 2048.

Also adjust MLX4_EN_MAX_XDP_MTU to take tailroom into account.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Link: https://lore.kernel.org/bpf/158945341893.97035.2688142527052329942.stgit@firesoul

...

This commit is contained in:

Jesper Dangaard Brouer 2020-05-14 12:50:18 +02:00 • committed by Alexei Starovoitov

parent 08fc1cfd2d

commit d201ea9ebc

2 changed files with 3 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

View file

1

drivers/net/ethernet/mellanox/mlx4/en_rx.c

View file