From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: pppoe and receive checksum offload Date: Sun, 27 Feb 2005 20:20:11 -0800 Message-ID: <20050227202011.5ccefb22.davem@davemloft.net> References: <20050224155906.73890361@dxpl.pdx.osdl.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: mostrows@speakeasy.net, kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com To: Stephen Hemminger In-Reply-To: <20050224155906.73890361@dxpl.pdx.osdl.net> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Thu, 24 Feb 2005 15:59:06 -0800 Stephen Hemminger wrote: > Someone reported a problem with skge hardware receive checksumming and PPPOE > but it looks like a generic problem. Since PPPOE adds additional header > bytes the hardware computed checksum will be wrong. > > Not sure if this is correct, but shouldn't pppoe be doing the following: Changing or expanding the link level headers should only mess up the hw checksum if you are using CHECKSUM_HW, is that what your skge driver is using?