Hi,
> -----Original Message-----
> From: Alexander Kozyrev <akozy...@nvidia.com>
> Sent: Tuesday, July 13, 2021 6:21 PM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasl...@nvidia.com>; Matan Azrad
> <ma...@nvidia.com>; Slava Ovsiienko <viachesl...@nvidia.com>;
> sta...@dpdk.org
> Subject: [PATCH v2] net/mlx5: fix threshold for mbuf replenishment in MPRQ
>
> The replenishment scheme for the vectorized MPRQ Rx burst aims
> to improve the cache locality by allocating new mbufs only when
> there are almost no mbufs left: one burst gap between allocated
> and consumed indexes.
>
> This gap is not big enough to accommodate a corner case when we
> have a very aggressive CQE compression with multiple regular CQEs
> at the beginning and 64 zipped CQEs at the end.
>
> Need to keep in mind this case and extend the replenishment
> threshold by MLX5_VPMD_RX_MAX_BURST (64) to avoid mbuf overflow.
>
> Fixes: 5fc2e5c27d6 ("net/mlx5: fix mbuf overflow in vectorized MPRQ")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
> ---
>
> v2: increased the replenishment gap to MLX5_VPMD_RX_MAX_BURST
> v1:
> https://patchwork.dpdk.org/project/dpdk/patch/20210712142910.314572-1-
> akozy...@nvidia.com/
>
> drivers/net/mlx5/mlx5_rxtx_vec.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
