From: "David S. Miller" <davem@davemloft.net>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: mostrows@speakeasy.net, kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com
Subject: Re: pppoe and receive checksum offload
Date: Mon, 28 Feb 2005 15:32:28 -0800 [thread overview]
Message-ID: <20050228153228.0c5cb46d.davem@davemloft.net> (raw)
In-Reply-To: <42235114.3070109@osdl.org>
On Mon, 28 Feb 2005 09:12:52 -0800
Stephen Hemminger <shemminger@osdl.org> wrote:
> The original sk98lin attempted to receive hardware checksumming
> but never actually turned it on.
Because there is a bug in the chip wherein checksums can be
miscalculated. I forget the details, but I do remember that
you can't enable checksumming safely because of this.
In drivers/net/sk98lin/skcsum.c it mentions this:
* Note:
* There is a bug in the GENESIS ASIC which may lead to wrong checksums.
I know this comment is above the send checksum routine, but I
am pretty sure the bug applies to both directions.
next prev parent reply other threads:[~2005-02-28 23:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-24 23:59 pppoe and receive checksum offload Stephen Hemminger
2005-02-28 4:20 ` David S. Miller
2005-02-28 9:21 ` Alexey Kuznetsov
2005-02-28 17:12 ` Stephen Hemminger
2005-02-28 23:32 ` David S. Miller [this message]
2005-03-01 0:01 ` shemminger
2005-02-28 11:31 ` Herbert Xu
2005-02-28 11:39 ` Herbert Xu
2005-02-28 14:04 ` Alexey Kuznetsov
2005-03-01 1:04 ` Herbert Xu
2005-03-10 5:13 ` David S. Miller
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