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From: "Olivier Crameri" <olivier.crameri@gmail.com>
To: netdev@vger.kernel.org
Cc: "Yoshio Turner" <yoshiotu@hpl.hp.com>,
	"Santos, Jose Renato G" <joserenato.santos@hp.com>,
	"Janakiraman, John" <john.janakiraman@hp.com>
Subject: Offloading features in VLAN interfaces
Date: Fri, 29 Sep 2006 17:21:44 -0700	[thread overview]
Message-ID: <b54af0b00609291721u16acb2f1ma918adec9b2e782b@mail.gmail.com> (raw)

Hi,

after running some experiments, we realised that using VLAN support in
Linux caused some overhead. It turned out to be that the offloading
features of our NIC (tso, sg, checksum offloading) were not beeing
used.

After digging a little bit in the code, we realised that the VLAN code
did not set the features parameter of the net_device structure for the
virtual interface. Attached is a patch with a suggested solution to
this problem.

Please let us know if this is an acceptable patch.

Thanks,
Olivier Crameri, HP Labs

             reply	other threads:[~2006-09-30  0:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-30  0:21 Olivier Crameri [this message]
2006-09-30  0:25 ` Offloading features in VLAN interfaces Olivier Crameri
2006-09-30  3:33   ` Stephen Hemminger
2006-10-05 16:25   ` Ben Greear

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