Date: Fri, 23 Jul 1999 10:36:08 -0700 From: Mike Smith <mike@smith.net.au> To: "Justin T. Gibbs" <gibbs@caspian.plutotech.com> Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: Re: cvs commit: src/release/sysinstall tcpip.c Message-ID: <199907231736.KAA03557@dingo.cdrom.com> In-Reply-To: Your message of "Fri, 23 Jul 1999 08:14:04 MDT." <199907231414.IAA03193@caspian.plutotech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> >So is there any reasonable expectation that we will have to deal with > >hardware that won't result in the driver placing the ethernet header > >immediately before the payload in the mbuf? This would result in us > >having to copy it around, which would be slightly yucky. > > In zero copy applications, the header and the payload are usually placed > in separate areas. Can you elaborate on this a little? We don't support the two being in a separate allocation unit at the moment, yet I understood the 'fast forwarding' code was essentially a zero-copy operation. -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msmith@freebsd.org \\ -- Joseph Merrick \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199907231736.KAA03557>