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From: Slava Ovsiienko <viacheslavo@nvidia.com>
To: Maxime Leroy <maxime.leroy@6wind.com>,
	Matan Azrad <matan@nvidia.com>,
	Shahaf Shuler <shahafs@nvidia.com>,
	Alexander Kozyrev <akozyrev@nvidia.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	NBU-Contact-N?lio Laranjeiro <nelio.laranjeiro@6wind.com>
Subject: Re: [dpdk-dev] [PATCH v4 1/2] net/mlx5: fix Rx queue count calculation
Date: Tue, 17 Nov 2020 12:06:10 +0000
Message-ID: <MWHPR12MB15011F671D05F9687D7366B2DFE20@MWHPR12MB1501.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20201117112648.29725-2-maxime.leroy@6wind.com>

> -----Original Message-----
> From: Maxime Leroy <maxime.leroy@6wind.com>
> Sent: Tuesday, November 17, 2020 13:27
> To: Matan Azrad <matan@nvidia.com>; Shahaf Shuler <shahafs@nvidia.com>;
> Slava Ovsiienko <viacheslavo@nvidia.com>; Alexander Kozyrev
> <akozyrev@nvidia.com>
> Cc: dev@dpdk.org; NBU-Contact-N?lio Laranjeiro
> <nelio.laranjeiro@6wind.com>
> Subject: [PATCH v4 1/2] net/mlx5: fix Rx queue count calculation
> The commit d2d57605522d ("net/mlx5: fix Rx queue count calculation") is
> incorrect because the count calculation is wrong for the next cqe:
> Example:
>  Compressed Set of packets 1  |   Compressed Set of packets 2
> C | a | e0 | e1 | e2 | e3 | e4 | e5 | C | a | e0
> There are 2 compressed set of packets in the first queue. For the first set, n is
> computed correctly.
> But for the second, n is not computed properly. Because the zip context is for
> the first set. The  second set is not yet decompressed, so there are no context.
> To fix the issue, we should only use the zip context for the first CQEs series.
> Fixes: d2d57605522d ("net/mlx5: fix Rx queue count calculation")
> Signed-off-by: Maxime Leroy <maxime.leroy@6wind.com>
> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

  reply	other threads:[~2020-11-17 12:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-17 11:26 [dpdk-dev] [PATCH v4 0/2] net/mlx5: fixes for rx " Maxime Leroy
2020-11-17 11:26 ` [dpdk-dev] [PATCH v4 1/2] net/mlx5: fix Rx " Maxime Leroy
2020-11-17 12:06   ` Slava Ovsiienko [this message]
2020-11-17 11:26 ` [dpdk-dev] [PATCH v4 2/2] net/mlx5: fix Rx descriptor status returned value Maxime Leroy
2020-11-17 12:05   ` Slava Ovsiienko
2020-11-17 13:48 ` [dpdk-dev] [PATCH v4 0/2] net/mlx5: fixes for rx queue count calculation Raslan Darawsheh

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