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

[Kevin Traynor]

Hi Yongseok,

Can you let me know how you want to proceed with the below. I think we
could just drop as it's a performance optimization, or maybe you have a
different idea.

thanks,
Kevin.

On 06/02/2019 15:54, Kevin Traynor wrote:
> 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>
>> ---