From: "D. Stussy" <spam+newsgroups@bde-arc.ampr.org>
To: linux-kernel@vger.kernel.org
Subject: Intel e1000 ethernet device, change in kernel v3.4, and jumbo frames setting DENIED.
Date: Wed, 4 Jul 2012 12:56:44 -0700 [thread overview]
Message-ID: <jt275t$9i2$1@snarked.org> (raw)
There has been some changes to the driver such that things like checksum
verification is offloaded from the CPU. However, this blocks the ability to
set a jumbo frame. The kernel does record an error indicating that checksum
offloading need be disabled fro jumbo frame MTU sizes to be used. My e1000
interfaces use the 82574L chipset.
1) Was this an intentional change?
2) How do I disable that function so I can set jumbo frames with "ifconfig"
or "ip"? I simply don't know what setting I need to pass.
Exact kernel message: "Jumbo frames cannot be enabled when both receive
checksum offload and receive hashing are enabled. Disable one of the receive
offload features before enabling jumbos."
next reply other threads:[~2012-07-04 20:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 19:56 D. Stussy [this message]
2012-07-04 22:33 ` Intel e1000 ethernet device, change in kernel v3.4, and jumbo frames setting DENIED Henrique de Moraes Holschuh
[not found] <jjE3E-5PM-29@gated-at.bofh.it>
[not found] ` <jjGoO-7l0-19@gated-at.bofh.it>
2012-07-05 19:55 ` D. Stussy
2012-07-05 23:53 ` D. Stussy
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