[Testbed-admins] Problem with Intel quad-port NIC drivers and images.

[Jeff Green <jgreen@gmail.com>]

We're attempting to use Intel quad-port NICS (Gigabit VT) on our
machines.  These NICs are recognized "out-of-the-box" by the admin
MFS, but we can't get drivers to work on either side of the FBSD62+FC6
image.

On the FC6 side, we've compiled basically every variant of driver
available from Intel (e1000, e1000e, and igb-1.3.19), with no luck.
We get the following error from modprobe.:

e1000e: disagrees about version of symbol struct_module
FATAL: Error inserting e1000e
(/lib/modules/2.6.20.6emulab/kernel/drivers/net/e1000e/e1000e.ko):
Invalid module format

We've pulled kernel-devel that matches the kernel and kernel-headers,
but still no dice.

lspci output looks like this if helpful:

0d:00.1 Ethernet controller: Intel Corporation Unknown device 10d6 (rev 02)
Subsystem: Intel Corporation Unknown device 145a
Flags: bus master, fast devsel, latency 0, IRQ 15
Memory at fcea0000 (32-bit, non-prefetchable) [size=128K]
Memory at fca00000 (32-bit, non-prefetchable) [size=2M]
I/O ports at ccc0 [size=32]
Memory at fced8000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Capabilities: [60] MSI-X: Enable- Mask- TabSize=10
Capabilities: [a0] Express Endpoint IRQ 0

0f:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit
Ethernet Controller (rev 06)
Subsystem: Intel Corporation PRO/1000 PT Dual Port Server Adapter
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fc4e0000 (32-bit, non-prefetchable) [size=128K]
Memory at fc4c0000 (32-bit, non-prefetchable) [size=128K]
I/O ports at bce0 [size=32]
Capabilities: [c8] Power Management version 2
Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Capabilities: [e0] Express Endpoint IRQ 0

Thank you much,
-jeff