[Xen-users] PCI Mapping of e1000 Dual-Port Adapter to DomU

["Severin Wiedemann" <wiedemann@xxxxxxxxxx>]

Hello,

I´m trying to map one network interface of a Dual-Port e1000 Server
Adapter
to a DomU (firewall). In Dom0 the adaper is seen with lspci as:

06:00.0 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
Controller Copper (rev 01)
06:00.1 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
Controller Copper (rev 01)

My goal is to map only 06:00.1 to DomU so I used this script before the
startup of xendomains:

#!/bin/bash
/sbin/modprobe pciback
SLOT=0000:06:00.1
# Unbind a PCI network card from its network driver
echo -n $SLOT > /sys/bus/pci/drivers/e1000/unbind
# And now bind it to the PCI Backend
echo -n $SLOT > /sys/bus/pci/drivers/pciback/new_slot
echo -n $SLOT > /sys/bus/pci/drivers/pciback/bind

I can see that after executing the script above the adapter is bind to
pciback correctly.

When I start the DomU I can´t see the Adapter with lspci.

I use XEN 3.1.0 with Kernel 2.6.18 (Source-Package) under Debian Etch.
The frontend-Driver is compiled into the
Kernel and the pciback-Driver is compiled as Module. I use the same
Kernel/initrd for Dom0/DomU.

Is it possible that I have to use a single e1000 Card to map it to DomU
and that it is not
possible to map only one Interface of the Dual-Card to DomU?

Thanks for any hints on this topic !

   Severin Wiedemann
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