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From: Thomas Monjalon <thomas@monjalon.net>
To: Yongseok Koh <yskoh@mellanox.com>
Cc: dev@dpdk.org, shahafs@mellanox.com, stable@dpdk.org
Date: Thu, 09 Aug 2018 12:20:21 +0200
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References: <20180808193247.16391-1-yskoh@mellanox.com>
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Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] net/mlx5: fix minimum size of
Multi-Packet Rx queue
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08/08/2018 21:32, Yongseok Koh:
> The size of Rx queue is determined by dividing the number of descriptors by
> the number of strides. As device can't support single slot queue, if the
> number of descriptors is same as the number of strides, MPRQ shouldn't be
> enabled. Otherwise, this will cause HW fault. For example, if rxd is set to
> 512 with testpmd on ConnectX-4 Lx, PMD can't receive more than 512 packets
> because the minimum number of strides for ConnectX-4 Lx is 512. Users have
> to configure larger number of descriptors in this case.
>
> Fixes: 7d6bf6b866b8 ("net/mlx5: add Multi-Packet Rx support")
> Cc: stable@dpdk.org
>
> Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Applied, thanks