lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 15 Jan 2008 20:46:01 +0100
From:	Stefan Roese <>
To:	Eugene Surovegin <>
Subject: Re: [PATCH] net: EMAC: Fix problem with mtu > 4080 on non TAH  equipped 4xx PPC's

On Tuesday 15 January 2008, Eugene Surovegin wrote:
> On Tue, Jan 15, 2008 at 01:40:09PM +0100, Stefan Roese wrote:
> > Currently, all non TAH equipped 4xx PPC's call emac_start_xmit() upon
> > xmit. This routine doesn't check if the frame length exceeds the max.
> > MAL buffer size.
> >
> > This patch now changes the driver to call emac_start_xmit_sg() on all
> > platforms and not only the TAH equipped ones (440GX). This enables an
> > MTU of 9000 instead 4080.
> >
> > Tested on Kilauea (405EX) with gbit link -> jumbo frames enabled.
> >
> > Signed-off-by: Stefan Roese <>
> > ---
> > Eugene & Ben, do you see any problems with this patch? If not, then I'll
> > send another version for the newemac driver too.
> Hmm, so why not make GigE support a condition to hook SG version of
> xmit then? I don't like when you change behaviour for chips where it
> perefectly legal not to do this check because you cannot change MTU
> anyways.

OK. But how do we detect GigE support? Seems like GigE enabled devices have 
CONFIG_IBM_EMAC4 defined. If nobody objects I'll fix up another version 


Best regards,
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists