[PATCH] net/mlx5: fix error packets drop in the regular Rx

[Kevin Traynor]

On 11/03/2024 18:14, Viacheslav Ovsiienko wrote:
> [ upstream commit ef296e8f6140ea469b50c7bfe73501b1c9ef86e1 ]
> 
> When packet gets received with error it is reported in CQE
> structure and PMD analyzes the error syndrome and provides
> two options - either reset the entire queue for the critical
> errors, or just ignore the packet.
> 
> The non-vectorized rx_burst did not ignore the non-critical
> error packets, and in case of packet length exceeding the
> mbuf data buffer length it took the next element in the queue
> WQE ring, resulting in CQE/WQE consume indices synchronization
> lost.
> 
> Fixes: aa67ed308458 ("net/mlx5: ignore non-critical syndromes for Rx queue")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> ---
>  drivers/net/mlx5/mlx5_rx.c | 19 ++++++++++++-------
>  1 file changed, 12 insertions(+), 7 deletions(-)
> 

fyi - for 21.11 branch, I had already rebased and applied this. It seems
to be on 22.11 and 23.11 branches (or queued) also.

https://git.dpdk.org/dpdk-stable/commit/?h=21.11&id=c52e6e0ecda72ad163fc7757abe825105d7a16c8