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[net-next,0/3] mlx4: better BIG-TCP support

Message ID 20221206055059.1877471-1-edumazet@google.com (mailing list archive)
Headers show
Series mlx4: better BIG-TCP support | expand

Message

Eric Dumazet Dec. 6, 2022, 5:50 a.m. UTC 
mlx4 uses a bounce buffer in TX whenever the tx descriptors
wrap around the right edge of the ring.

Size of this bounce buffer was hard coded and can be
increased if/when needed.

Eric Dumazet (3):
  net/mlx4: rename two constants
  net/mlx4: MLX4_TX_BOUNCE_BUFFER_SIZE depends on MAX_SKB_FRAGS
  net/mlx4: small optimization in mlx4_en_xmit()

 drivers/net/ethernet/mellanox/mlx4/en_tx.c   | 18 ++++++++++--------
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 18 +++++++++++++-----
 2 files changed, 23 insertions(+), 13 deletions(-)

Comments

Leon Romanovsky Dec. 7, 2022, 7:49 a.m. UTC | #1 
On Tue, Dec 06, 2022 at 05:50:56AM +0000, Eric Dumazet wrote:
> mlx4 uses a bounce buffer in TX whenever the tx descriptors
> wrap around the right edge of the ring.
> 
> Size of this bounce buffer was hard coded and can be
> increased if/when needed.
> 
> Eric Dumazet (3):
>   net/mlx4: rename two constants
>   net/mlx4: MLX4_TX_BOUNCE_BUFFER_SIZE depends on MAX_SKB_FRAGS
>   net/mlx4: small optimization in mlx4_en_xmit()
> 
>  drivers/net/ethernet/mellanox/mlx4/en_tx.c   | 18 ++++++++++--------
>  drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 18 +++++++++++++-----
>  2 files changed, 23 insertions(+), 13 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>