[dpdk-dev] [PATCH v2 4/5] net/ena: fix Tx sq free space assessment

[Ferruh Yigit]

On 1/26/2021 6:32 PM, Michal Krawczyk wrote:
> From: Igor Chauskin <igorch at amazon.com>
> 
> Before starting transmission of Tx burst, the driver checked the
> available space in the sq and limited the number of packets for
> transmission accordingly.
> The calculation was incorrect for fragmented packets and potentially had
> significantly limited the length of Tx bursts.
> 
> This patch removes the assessment and pushes packets to the sq as long
> as the burst is not exhausted and space is available in the sq.
> 
> Correct evaluation of the required space isn't possible before the burst
> because it depends on the number of segments of each packet.
> This patch adds per-packet space evaluation for each packet before
> attempting to process it. In case there is not enough queue space, the
> burst will just stop without error.
> 
> Signed-off-by: Igor Chauskin <igorch at amazon.com>
> Reviewed-by: Michal Krawczyk <mk at semihalf.com>

Hi Michal, Igor,

Can you please provide fixes line for the patch, and I assume you want it to be 
backported?