From: "Marek Behún" <kabel@kernel.org>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Sven Auhagen <sven.auhagen@voleatech.de>,
netdev@vger.kernel.org, davem@davemloft.net,
Jakub Kicinski <kuba@kernel.org>,
Matteo Croce <mcroce@microsoft.com>,
Lorenzo Bianconi <lorenzo@kernel.org>
Subject: Re: [PATCH net-next] net: mvpp2: increase MTU limit when XDP enabled
Date: Wed, 6 Jan 2021 13:33:28 +0100 [thread overview]
Message-ID: <20210106133328.25766204@kernel.org> (raw)
In-Reply-To: <20210106133205.617dddd8@kernel.org>
On Wed, 6 Jan 2021 13:32:05 +0100
Marek Behún <kabel@kernel.org> wrote:
> On Wed, 6 Jan 2021 12:56:08 +0100
> Marek Behún <kabel@kernel.org> wrote:
>
> > I also to write a simple NAT masquerading program. I think XDP can
> > increase NAT throughput to 2.5gbps as well.
>
> BTW currently if XDP modifies the packet, it has to modify the
> checksums accordingly. There is a helper for that even, bpf_csum_diff.
(from L3 forwards, if you modify ethhdr, you don't have to modify L2
checksum. You can't even see it...)
next prev parent reply other threads:[~2021-01-06 12:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 17:19 [PATCH net-next] net: mvpp2: increase MTU limit when XDP enabled Marek Behún
2021-01-05 17:24 ` Sven Auhagen
2021-01-05 17:43 ` Marek Behún
2021-01-05 20:21 ` Andrew Lunn
2021-01-06 11:56 ` Marek Behún
2021-01-06 12:32 ` Marek Behún
2021-01-06 12:33 ` Marek Behún [this message]
2021-01-06 18:34 ` Andrew Lunn
2021-01-06 13:13 ` Vladimir Oltean
2021-01-06 10:33 ` Jesper Dangaard Brouer
2021-01-06 11:28 ` Sven Auhagen
2021-01-05 20:23 ` Andrew Lunn
2021-01-06 12:11 ` Marek Behún
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