[dpdk-dev] [PATCH v2] net/mlx5: fix info about Rx descriptors for MPRQ

[Slava Ovsiienko]

> -----Original Message-----
> From: Alexander Kozyrev <akozyrev at nvidia.com>
> Sent: Sunday, November 8, 2020 6:28
> To: dev at dpdk.org
> Cc: Raslan Darawsheh <rasland at nvidia.com>; Matan Azrad
> <matan at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>;
> stable at dpdk.org
> Subject: [PATCH v2] net/mlx5: fix info about Rx descriptors for MPRQ
> 
> The number of descriptors configured is returned to a user via the rxq_info_get
> API. This number is incorrect for MPRQ.
> For SPRQ this number matches the number of mbufs allocated.
> For MPRQ we have fewer external MPRQ buffers that can hold multiple
> packets in strides of this big buffer. Take that into account and return the
> number of MPRQ buffers multiplied by the number of strides in this case.
> 
> Fixes: 26f1bae837 ("net/mlx5: add Rx/Tx burst mode info")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Alexander Kozyrev <akozyrev at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>