Jeff, I don't think this functionality is present in ethtool. I only see #ifdef code in most of the drivers. What functionality do you mean?
We created this patch in response to the following thread with subject line - RE: [PATCH 2/2] NET: Re-add VLAN tag for devices incapable of keeping it Since the Xframe hardware can dynamically turn Vlan stripping on and off, we gave an option to the user to leave it in the default state (strip the Vlan tag if a vlan group is present, else no stripping) or to always turn OFF stripping (if say in promiscuous mode) or always turn it ON (always strip vlan tags). Ram > -----Original Message----- > From: Jeff Garzik [mailto:[EMAIL PROTECTED] > Sent: Friday, November 23, 2007 7:04 PM > To: [EMAIL PROTECTED] > Cc: netdev@vger.kernel.org; support > Subject: Re: [PATCH 2.6.24 1/2]S2io: Strip the vlan tag if the vlan group > is not NULL > > Ramkrishna Vepa wrote: > > - Updated the vlan tag stripping code as per Dave Johnson's patch > > <[EMAIL PROTECTED]> > > Below is the driver behaviour for vlan_tag_strip loadable paramter, > > vlan_tag_strip - 0: Don't strip the vlan tag > > vlan_tag_strip - 1: Always strip the vlan tag > > vlan_tag_strip - 2 (default): strip the vlan tag if the > > vlan group is not NULL. > > > > Signed-off-by: Santoshkumar Rastapur <[EMAIL PROTECTED]> > > Signed-off-by: Ramkrishna Vepa <[EMAIL PROTECTED]> > > --- > > diff -Nurp 2.0.26.6/drivers/net/s2io.c 2.0.26.8P1/drivers/net/s2io.c > > --- 2.0.26.6/drivers/net/s2io.c 2007-11-15 18:19:42.000000000 -0800 > > +++ 2.0.26.8P1/drivers/net/s2io.c 2007-11-15 18:15:00.000000000 -0800 > > @@ -46,10 +46,10 @@ > > * Possible values '1' for enable and '0' for disable. Default is > '1' > > * ufo: This parameter used to enable/disable UDP Fragmentation > Offload(UFO) > > * Possible values '1' for enable and '0' for disable. Default is > '0' > > - * vlan_tag_strip: This can be used to enable or disable vlan > stripping. > > - * Possible values '1' for enable , '0' for disable. > > - * Default is '2' - which means disable in promisc mode > > - * and enable in non-promiscuous mode. > > + * vlan_tag_strip: This can be used to enable or disable vlan tag > stripping. > > + * Possible values '2' for driver default, '1' for enable and > > + * '0' for disable > > + * Default is '2' - VLAN tag stripping enabled if vlan group > present > > > ************************************************************************ / > > this should be controlled via ethtool and behave like other net drivers > - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
