netdev - Re: [PATCH net-next 0/3][pull request] 40GbE Intel Wired LAN Driver Updates 2021-03-16

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Message-ID: <20210316144300.3eaab365@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 16 Mar 2021 14:43:00 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Tony Nguyen <anthony.l.nguyen@...el.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, sassmann@...hat.com,
        bjorn.topel@...el.com, maciej.fijalkowski@...el.com,
        magnus.karlsson@...el.com
Subject: Re: [PATCH net-next 0/3][pull request] 40GbE Intel Wired LAN Driver
 Updates 2021-03-16

On Tue, 16 Mar 2021 09:42:51 -0700 Tony Nguyen wrote:
> Optimize run_xdp_zc() for the XDP program verdict being XDP_REDIRECT
> in the xsk zero-copy path. This path is only used when having AF_XDP
> zero-copy on and in that case most packets will be directed to user
> space. This provides around 100k extra packets in throughput on my
> server when running l2fwd in xdpsock.

Looks reasonable:

Reviewed-by: Jakub Kicinski <kuba@...nel.org>