netdev - Re: [PATCH net-next 00/10] mlx4 XDP performance improvements

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Message-Id: <20170615.225343.2110461670704388500.davem@davemloft.net>
Date:   Thu, 15 Jun 2017 22:53:43 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     tariqt@...lanox.com
Cc:     netdev@...r.kernel.org, eranbe@...lanox.com, saeedm@...lanox.com,
        kernel-team@...com
Subject: Re: [PATCH net-next 00/10] mlx4 XDP performance improvements

From: Tariq Toukan <tariqt@...lanox.com>
Date: Thu, 15 Jun 2017 14:35:30 +0300

> This patchset contains data-path improvements, mainly for XDP_DROP
> and XDP_TX cases.
> 
> Main patches:
> * Patch 2 by Saeed allows enabling optimized A0 RX steering (in HW) when
>   setting a single RX ring.
>   With this configuration, HW packet-rate dramatically improves,
>   reaching 28.1 Mpps in XDP_DROP case for both IPv4 (37% gain)
>   and IPv6 (53% gain).
> * Patch 6 enhances the XDP xmit function. Among other changes, now we
>   ring one doorbell per NAPI. Patch gives 17% gain in XDP_TX case.
> * Patch 7 obsoletes the NAPI of XDP_TX completion queue and integrates its
>   poll into the respective RX NAPI. Patch gives 15% gain in XDP_TX case.
> 
> Series generated against net-next commit:
> f7aec129a356 rxrpc: Cache the congestion window setting

Series applied, thanks.