Re: Various 802.1Q VLAN driver patches.

Jeff Garzik (jgarzik@mandrakesoft.com)
Fri, 01 Mar 2002 14:43:35 -0500


Patrick Schaaf wrote:
> > Ben Greear wrote:
> > > --- linux-2.4.16/drivers/net/eepro100.c Mon Nov 12 18:47:18 2001
> > > +++ linux/drivers/net/eepro100.c Tue Dec 18 11:36:11 2001
> > > @@ -510,12 +510,12 @@
> > > static const char i82557_config_cmd[CONFIG_DATA_SIZE] = {
> > > 22, 0x08, 0, 0, 0, 0, 0x32, 0x03, 1, /* 1=Use MII 0=Use AUI */
> > > 0, 0x2E, 0, 0x60, 0,
> > > - 0xf2, 0x48, 0, 0x40, 0xf2, 0x80, /* 0x40=Force full-duplex */
> > > + 0xf2, 0x48, 0, 0x40, 0xfa, 0x80, /* 0x40=Force full-duplex */
> > > 0x3f, 0x05, };
> > > static const char i82558_config_cmd[CONFIG_DATA_SIZE] = {
> > > 22, 0x08, 0, 1, 0, 0, 0x22, 0x03, 1, /* 1=Use MII 0=Use AUI */
> > > 0, 0x2E, 0, 0x60, 0x08, 0x88,
> > > - 0x68, 0, 0x40, 0xf2, 0x84, /* Disable FC */
> > > + 0x68, 0, 0x40, 0xfa, 0x84, /* Disable FC */
> > > 0x31, 0x05, };

> This patch, from all I know using it, does exactly one thing: it permits
> receiving (and sending) slightly larger frames, for setting the MTU on the
> base interface to 1504, so the VLAN interfaces themselves can run the
> normal 1500 byte MTU.

Thanks.

Can you be more specific?
Does this (a) set eepro100 h/w max mtu to 1504, or (b) enable h/w vlan
de-tagging, or (c) enable h/w support for non-standard frame sizes?
Any idea what the max h/w frame size is?

-- 
Jeff Garzik      |
Building 1024    |
MandrakeSoft     | Choose life.
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