What I was looking for is a general capability to keep the SW transport stack from computing outgoing TCP/UDP/IP checksums so that the HW can be allowed to do it, similar to Windows checksum offload capability. "Jeff Garzik" <jgarzik@pobox.com> wrote in message 20030402203653.GA2503@gtf.org">news:20030402203653.GA2503@gtf.org... > On Wed, Apr 02, 2003 at 02:22:59PM -0500, Dennis Cook wrote: > > Using RH Linux kernel 2.4.18, setting "features" bit NETIF_F_IP_CSUM does > > not appear > > to keep a valid IP checksum from being computed in packets presented to my > > driver > > for transmission. So having HW compute outgoing checksum buys nothing. > > You are not using sendfile(2), which is required to activate h/w csum. > > Jeff > > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
