Intel E1000 and low-end switches

[petersonz]

Hi All,

I found out from this site http://support.intel.com/support/network/sb/CS-009209.htm , that there is a known issue with Intel E1000 gigabit cards and low-end gigabit switches.

I have a slow linkup problem as described by this article. It is indicated by several cycles of link up/down events before it finally links up. Sometimes it takes 1 minute, other times it takes 10 seconds. Needless to say, with DHCPCD, this is a nightmare.

The workaround is to compile the e1000 driver with the CFLAGS_EXTRA like so:

# make CFLAGS_EXTRA=-DE1000_MASTER_SLAVE=<n>

Where <n> is:

0 = Hardware default
1 = Master mode
2 = Slave mode
3 = Auto master/slave

Whats the official Gentoo method for this? make.conf setting, then compile kernel modules again?

Thanks in advance.