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From: Raslan Darawsheh <rasland@mellanox.com>
To: Alexander Kozyrev <akozyrev@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
	Slava Ovsiienko <viacheslavo@mellanox.com>
Subject: Re: [dpdk-stable] [PATCH] net/mlx5: fix vectorized Rx burst termination
Date: Wed, 3 Jun 2020 12:33:33 +0000
Message-ID: <AM0PR05MB67073399EC0D16083CDDC50EC2880@AM0PR05MB6707.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <1591069841-7846-1-git-send-email-akozyrev@mellanox.com>

Hi,

> -----Original Message-----
> From: Alexander Kozyrev <akozyrev@mellanox.com>
> Sent: Tuesday, June 2, 2020 6:51 AM
> To: dev@dpdk.org
> Cc: stable@dpdk.org; Raslan Darawsheh <rasland@mellanox.com>; Slava
> Ovsiienko <viacheslavo@mellanox.com>
> Subject: [PATCH] net/mlx5: fix vectorized Rx burst termination
> 
> Maximum burst size of Vectorized Rx burst routine is set to
> MLX5_VPMD_RX_MAX_BURST(64). This limits the performance of any
> application that would like to gather more than 64 packets from
> the single Rx burst for batch processing (i.e. VPP).
> 
> The situation gets worse with a mix of zipped and unzipped CQEs.
> They are processed separately and the Rx burst function returns
> small number of packets every call.
> 
> Repeat the cycle of gathering packets from the vectorized Rx routine
> until a requested number of packets are collected or there are no
> more CQEs left to process.
> 
> Fixes: 6cb559d67b83 ("net/mlx5: add vectorized Rx/Tx burst for x86")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
> Acked-by: Slava Ovsiienko <viacheslavo@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_rxtx_vec.c         | 19 +++++++++++++------
>  drivers/net/mlx5/mlx5_rxtx_vec_altivec.h | 13 ++++++++++---
>  drivers/net/mlx5/mlx5_rxtx_vec_neon.h    | 13 ++++++++++---
>  drivers/net/mlx5/mlx5_rxtx_vec_sse.h     | 13 ++++++++++---
>  4 files changed, 43 insertions(+), 15 deletions(-)
> 

Patch applied to next-net-mlx,

Kindest regards
Raslan Darawsheh

      parent reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-02  3:50 Alexander Kozyrev
2020-06-02  5:59 ` [dpdk-stable] [dpdk-dev] " Matan Azrad
2020-06-03 12:33 ` Raslan Darawsheh [this message]

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patches for DPDK stable branches

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