[dpdk-dev] [PATCH v5 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer

[Kevin Traynor]

On 01/14/2019 09:16 PM, Yongseok Koh wrote:
> On replenishing Rx buffers for vectorized Rx, mbuf->buf_addr isn't needed
> to be accessed as it is static and easily calculated from the mbuf address.
> Accessing the mbuf content causes unnecessary load stall and it is worsened
> on ARM.
> 
> Fixes: 545b884b1da3 ("net/mlx5: fix buffer address posting in SSE Rx")
> Cc: stable at dpdk.org
> 

This is using the API introduced in 1/2, so it's not really suitable for
backport. Maybe you want to send an alternative for stable?

> Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
> Acked-by: Shahaf Shuler <shahafs at mellanox.com>
> ---