[dpdk-dev] [PATCH v2 0/5] net/mlx5: add vectorized Rx/Tx burst for x86

[Bruce Richardson]

On Fri, Jun 30, 2017 at 12:23:28PM -0700, Yongseok Koh wrote:
> This is to introduce more efficient Rx/Tx burst functions using SIMD
> instructions. Currently it is only supported by 64bit x86 having SSE4.1.
> 
> From functional perspective, Rx burst function is equivalent to the
> existing mlx5_rx_burst() except for scatter support, which will be added
> soon. Tx burst function supports multi-segment packets and offload flags
> unless it is disabled by txq_flags. However, disabling those features will
> bring a little higher performance.
> 
> v2:
> * Streamline redundant conditional clauses in txq_complete().
> * Remove the mempool pointer in txq->mp2mr structure.
> * Fix indentation and spacing.
> 
> Yongseok Koh (5):
>   net/mlx5: change indexing for Tx SW ring
>   net/mlx5: free buffers in bulk on Tx completion
>   net/mlx5: use buffer address for LKEY search
>   net/mlx5: select Rx/Tx callbacks when starting device
>   net/mlx5: add vectorized Rx/Tx burst for SSE4.1
> 
>  drivers/net/mlx5/Makefile            |   10 +
>  drivers/net/mlx5/mlx5_defs.h         |   18 +
>  drivers/net/mlx5/mlx5_ethdev.c       |   28 +-
>  drivers/net/mlx5/mlx5_mr.c           |   17 +-
>  drivers/net/mlx5/mlx5_rxq.c          |   57 +-
>  drivers/net/mlx5/mlx5_rxtx.c         |  425 +++-------
>  drivers/net/mlx5/mlx5_rxtx.h         |  291 ++++++-
>  drivers/net/mlx5/mlx5_rxtx_vec_sse.c | 1451 ++++++++++++++++++++++++++++++++++
>  drivers/net/mlx5/mlx5_trigger.c      |    3 +
>  drivers/net/mlx5/mlx5_txq.c          |   23 +-
>  10 files changed, 1980 insertions(+), 343 deletions(-)
>  create mode 100644 drivers/net/mlx5/mlx5_rxtx_vec_sse.c
>
FYI: I've upstreamed a patchset to bump the minimum specs for DPDK on
x86 to include SSE4.2, so that would lead to some simplification of your
code, I expect. See this set: http://dpdk.org/dev/patchwork/patch/25444/

Regards,
/Bruce