> -----Original Message-----
> From: Maxime Leroy <[email protected]>
> Sent: Tuesday, November 17, 2020 13:27
> To: Matan Azrad <[email protected]>; Shahaf Shuler <[email protected]>;
> Slava Ovsiienko <[email protected]>; Olivier Matz
> <[email protected]>
> Cc: [email protected]; Didier Pallard <[email protected]>
> Subject: [PATCH v4 2/2] net/mlx5: fix Rx descriptor status returned value
>
> From: Didier Pallard <[email protected]>
>
> Three bugs in rx_queue_count function:
> - One entry may contain several segments, so 'used' must be multiplied
> by number of segments per entry to properly reflect the queue usage.
> - The number of cqes is equals to (1U << rxq->elts_n) - 1 in SPRQ mode.
> The range returned by rx_queue_count should be the number of entries
> used in queue, so it ranges from 0 to max number of entries
> in queue, not this number minus one.
> - For MPRQ mode, we need to take into account of the number of strd.
>
> Fixes: 8788fec1f269 ("net/mlx5: implement descriptor status API")
> Signed-off-by: Didier Pallard <[email protected]>
> Signed-off-by: Maxime Leroy <[email protected]>
Acked-by: Viacheslav Ovsiienko <[email protected]>
