options TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS are mutually exclusive

[Pyun YongHyeon]

On Fri, Nov 02, 2007 at 11:00:26AM +0700, binto wrote:
 > another question.....
 > in my 'dmesg' i have NIC - em0 <Intel(R) PRO/1000 Network Connection
 > Version - 6.6.6>...is it support Tigon driver that need to set
 > ZERO_COPY_SOCKETS ?
 > 

em(4) supports zero copy for Tx side. zero copy for receiver side
requires header splitting assistance from hardware which is not
available in em(4). I guess ti(4) on Tigon II would be the only
driver that supports header splitting.

However it seems newer Intel NICs and Sun Cassini+ seems to have
header splitting feature. Jack Vogel, maintainer of em(4), may have
more information for header splitting support on em(4).(CCed)

 > thx
 > 
 > > On Fri, Nov 02, 2007 at 09:39:19AM +0700, binto wrote:
 > >  > I try to compile MYKERNEL to set zero_copy & tigon driver in my machine
 > >  > with:
 > >  >
 > >  > device ti
 > >  > options TI_PRIVATE_JUMBOS
 > >  > options TI_JUMBO_HDRSPLIT
 > >  >
 > >  > but got:
 > >  > #error "options TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS are mutually
 > >  > exclusive"
 > >  >
 > >  > what's up....?
 > >  >
 > >
 > > %vi +/TI_JUMBO_HDRSPLIT /usr/src/sys/conf/NOTES
 > >
 > > --
 > > Regards,
 > > Pyun YongHyeon
 > >
 > 
 > 

-- 
Regards,
Pyun YongHyeon