Hi,
> -----Original Message-----
> From: Alexander Kozyrev <akozy...@nvidia.com>
> Sent: Saturday, November 21, 2020 5:43 AM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasl...@nvidia.com>; Slava Ovsiienko
> <viachesl...@nvidia.com>; Matan Azrad <ma...@nvidia.com>
> Subject: [PATCH] net/mlx5: fix mbufs overflow in vectorized MPRQ
>
> Changing the allocation scheme to improve mbufs locality caused mbufs
> overrun in some cases. Revert the previous replenish logic back.
> Calculate a number of unused mbufs and replenish max this number of
> mbufs.
>
> Mark the last 4 mbufs as fake mbufs to prevent overflowing into consumed
> mbufs in the future. Keep the consumed index and the produced index 4
> mbufs
> apart for this purpose.
>
> Replenish some mbufs only in case the consumed index is within the
> replenish threshold of the produced index in order to retain the cache
> locality for the vectorized MPRQ routine.
>
> Fixes: 5c68764377 ("net/mlx5: improve vectorized MPRQ descriptors
> locality")
>
> Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com>
> ---
> drivers/net/mlx5/mlx5_rxtx_vec.c | 17 ++++++++++++-----
> 1 file changed, 12 insertions(+), 5 deletions(-)
>
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
