flow control in e100

Hi,

I'm using the e100 V3.0.13, and I've
a few questions regarding flow control.

This logic is crying out for a comment...

[config->fc_disable=0;]
if(nic->mac >= mac_82558_D101_A4) {
     config->fc_disable = 0x1;       /* 1=Tx fc off, 0=Tx fc on */
}

Also how does one query set flow control?
ethtool -[aA] doesn't seem to be supported.

thanks,
Pádraig.