Hi,
I have a PC with 3 ethernet interfaces. I am trying to a) assign 2 ethernet
interfaces exclusively to one domU by using the late binding method and b)
to use a bridge between the third interface and dom0 (that works fine). The
goal is to not to have to use bridges for the exclusively assigned
interfaces.
Is it possible? (If not, no need to read the rest)
The problem I have is that I cannot ping out of the exclusively assigned
ethernet interfaces in the domU.
The ethernet interfaces in the domU have a mac address assigned by xen, not
the actual card mac address. So, I assigned the card mac address to the
ethernet interfaces (otherwise you would need a bridge, wouldn''t you?),
but
it still does not work.
How can I verify that the pci are actually binded to the domU? After I
unbind/bind the pci, the "lspci" command still shows the devices in
the dom0
and "lspci" returns an error in the domU. One way I found was to try
to
enable the interface (ifconfig ethX up) in the domU, and it does not work,
which leads me to conclude that the interfaces are assigned to the domU.
Also, when I create the domU after I unbind/bind the interfaces, a bridge is
created as follows:
brctl show
bridge name bridge id STP enabled interfaces
xenbr1 8000.feffffffffff no peth1
vif0.1
vif2.0
vif2.1
vif2.2
All 3 interfaces are bridged. I would expect the two hidden interfaces not
to be part of the bridge.
Am I missing something?
I am using xen 3.0.2 with the default configuration (downloaded with yum)
and FC5. Here is the lpsci:
lspci | grep Ethernet
02:01.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
02:02.0 Ethernet controller: D-Link System Inc DL10050 Sundance Ethernet
(rev 15)
02:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 02)
and here is the script to bind/unbind:
#!/bin/sh
#
ifdown eth0
ifdown dev1804289383
echo -n 0000:02:02.0 > /sys/bus/pci/drivers/sundance/unbind
echo -n 0000:02:02.0 > /sys/bus/pci/drivers/pciback/new_slot
echo -n 0000:02:02.0 > /sys/bus/pci/drivers/pciback/bind
echo -n 0000:02:01.0 > /sys/bus/pci/drivers/8139too/unbind
echo -n 0000:02:01.0 > /sys/bus/pci/drivers/pciback/new_slot
echo -n 0000:02:01.0 > /sys/bus/pci/drivers/pciback/bind
Here is the domU configuration (the first pci/mac, empty, is the dom0-domU
bridge, the last 2 are the exclusively assigned ethernet):
name = "apache"
memory = "256"
disk = [ ''file:/xen/vm1disk1,xvda,w'' ]
vif = [ '''',''mac=00:50:ba:b0:59:ce'',
''mac=00:53:46:e7:6f:9e'' ]
bootloader="/usr/bin/pygrub"
pci = [ '''', ''02,01,0'',
''02,02,0'' ]
on_reboot = ''restart''
on_crash = ''restart''
Thanks,
Pascal
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