From: Ben Hutchings <bhutchings@solarflare.com>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: <netdev@vger.kernel.org>
Subject: Re: VLAN HW accel, performance advantage?
Date: Tue, 3 Sep 2013 14:50:16 +0100 [thread overview]
Message-ID: <1378216216.1545.1.camel@bwh-desktop.uk.level5networks.com> (raw)
In-Reply-To: <OF00E35E7C.7482EC01-ONC1257BDB.00314AD0-C1257BDB.0031F6D0@transmode.se>
On Tue, 2013-09-03 at 11:05 +0200, Joakim Tjernlund wrote:
> I am considering impl. VLAN HW acceleration in Freescales ucc_geth driver
> to improve
> performance, primarily for bridged interfaces.
> I am hoping the community has some insights as to what performance gains
> one
> could expect?
At the moment you need to do VLAN RX offload (or fake it in software) to
take advantage of GRO for VLAN-encapsulated packets. Other than that, I
don't think it makes a lot of difference in most situations.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
next prev parent reply other threads:[~2013-09-03 13:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-03 9:05 VLAN HW accel, performance advantage? Joakim Tjernlund
2013-09-03 13:50 ` Ben Hutchings [this message]
2013-09-03 14:08 ` Joakim Tjernlund
2013-09-03 14:48 ` Ben Hutchings
2013-09-03 15:29 ` Eric Dumazet
2013-09-03 18:01 ` Joakim Tjernlund
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