Zero Copy Sockets?

[Bosko Milekic]

On Sun, Jun 22, 2003 at 12:46:26PM -0700, George V. Neville-Neil wrote:
> Hi,
> 
> 	I'm reading over the internals of the network stack in
> 	-CURRENT and I'm wondering if the Zero Copy stuff is actually
> 	in use yet.
> 
> Thanks,
> George

  Yes.  But your driver needs to support it.  Currently, the only driver
  that does is if_ti in src/sys/pci/if_ti*.[ch]

  sendfile(2) is also zero-copy for the most part (for the file part).
  That's been in use for a long time.  src/sys/kern/uipc_syscalls.c

Regards,
-- 
Bosko Milekic  *  bmilekic at technokratis.com  *  bmilekic at FreeBSD.org
TECHNOkRATIS Consulting Services  *  http://www.technokratis.com/