if_vge.c TX checksum errors on 6.3R-p2 7.0R-p1

[Andrew Snow]

Dewayne Geraghty wrote:
 > Hi, I have four VIA motherboards each containing a vge0 device, three 
are misbehaving.
 >
 >   On both the 7.0R-p1 and the 6.3Rp2 motherboards, the network cable 
needs to be unplugged and replugged into the motherboard, before ping 
will respond in either direction.  The driver is issueing "incorrect" 
checksums during transmissions from the vge device, as observed from 
tcpdump -vvv.




Hello,

We have had success with many of the Via EN12000E motherboards and 
FreeBSD.  These have the VT6122 chip on VIA VT8237R-series South Bridge. 
  We have used various versions of 6.0-6.2 and 7.0-STABLE and it has 
always performed flawlessly at 100m and gigabit speeds to various switches.

I wonder if you have are experiencing an incompability with your switch 
or the device at the other end of the cable?  That kind of behaviour 
smells like a link-level issue to me.

- Andrew