Re: [Xen-users] pcifront pci-0: pciback not responding (tg3)

[buw20031220@xxxxxxxxxxxxxx]

Thanks for the prompt reply,
I am currently running SuSE10.1 as dom0, maybe I should switch to SLES10 RCx.


> 
> Not sure what is happening there, but I was able to get this to work using
> SLES10, RC1 (using instructions below).  Maybe someone else will know
> something about your  specific configuration.
> 
> 
> Load the pciback module by typing -> modprobe pciback
> 
> Get the PCI ID for the hardware you will be using by typing - > lspci 
> 
>          IE * You may see 0000:02:06.0 for an e100 card.
> 
> 
> 
> 
> Unbind the desired device intended for pciback. Go to /sys/bus/drivers and
> look for the folder with your driver, for example e100. Go in the folder and
> you will see the sym link for the device starting with your pci_id. Next ->
> echo -n 0000:02:06.0 > /sys/bus/pci/drivers/e100/unbind
> Now that sym link you just checked out should be gone.
> 
> Now bind the device to pciback.
> echo -n 0000:02:06.0 > /sys/bus/pci/drivers/pciback/new_slot
> echo -n 0000:02:06.0 > /sys/bus/pci/drivers/pciback/bind
> Go to the pciback directory and you should see a new sym link created.
> 
> Now configure your Virtual Machine (DomU) to use the device.
> Add to your conf file -> pci=['0000:02:06.0']
> or
> Specify it when loading your domU -> xm create -c vm1 pci=0000:02:06.0
> 
> 
> >>> On 5/31/2006 at 2:46 PM, in message
> <1149108363.447e008ba7d56@xxxxxxxxxxxxxxxxxxxxxx>,
> <buw20031220@xxxxxxxxxxxxxx> wrote:
> Hello,
> I am desperately trying to get pci-passthrough to working.
> I want to pass a tg3 nic to domU.
> 
> when booting domU I get a lot of messages:
> pcifront pci-0: pciback not responding!!!
> 
> in domU, "ifconfig eth... adress up"
> hangs for 2 minutes, finally ifconfig -a shows a
> correct setting with no data transmitted rx/tx
> The IP Adress is being assigned, but there is no data
> transmission possible on this interface (ping ..)
> 
> lspci in domU also hangs for 2 minutes, then reports
> the device correctly.
> 
> When not doing pci passthrough, I can use the interface in dom0
> just as usual.
> I have also tried the other PCI devices - same result.
> 
> vif works, but I am afraid it is too slow for a real server.
> 
> Any Ideas ?
> Thanks in advance
> Winfried
> 
> 
> 
> My configuration:
> =================
> xen-dbg-3.0.2_09668-0.1.gz from SuSE,
> suse xen kernel vmlinuz-2.6.16.16-1.4-xen based self compile
> 
> I have pciback compiled into the kernel. Later I also compiled
> tg3 into the kernel, but it didn't help.
> The pciback hide and permissive seem to be correct.
> 
> 
> More Error messages:
> ====================
> 
> domU, dmesg shows:
>    :
> pcifront pci-0: pciback not responding!!!
> pcifront pci-0: pciback not responding!!!
> NET: Registered protocol family 10
> lo: Disabled Privacy Extensions
> ADDRCONF(NETDEV_UP): eth0: link is not ready
> 
> 
> in dom0, xm dmesg shows:
> 
> (XEN) DOM6: (file=mm.c, line=486) Non-privileged attempt to map I/O space
> 00000000
> (XEN) DOM6: (file=mm.c, line=486) Non-privileged attempt to map I/O space
> 000000c0
> (XEN) DOM6: (file=mm.c, line=486) Non-privileged attempt to map I/O space
> 0000009f
> 
> 
> pciback runs with trace, so dom0 dmesg shows:
>    :
> pciback: 0000:05:02.0: write request 4 bytes at 0x80 = 0
> pciback: 0000:05:02.0: write request 4 bytes at 0x78 = 340cc
> pciback: 0000:05:02.0: write request 4 bytes at 0x80 = 0
> pciback: 0000:05:02.0: write request 4 bytes at 0x78 = 340d0
> pciback: 0000:05:02.0: write request 4 bytes at 0x80 = 27bdffe0
> pciback: 0000:05:02.0: write request 4 bytes at 0x78 = 340dc
>    :
> pciback: 0000:05:02.0: read 1 bytes at 0x59 = 0
> pciback: 0000:05:02.0: read 4 bytes at 0x0
> pciback: 0000:05:02.0: read 4 bytes at 0x0 = 16c714e4
> pciback: 0000:05:02.0: read 4 bytes at 0x4
>    :
> 
> My config files:
> ================
> 
> dom0:/boot/grub/menu.lst :
> 
> title Xen Debug buw --
>     root (hd0,5)
>     kernel /boot/xen-dbg.gz dom0_mem=384M
>     module /boot/vmlinuz-xen_buw root=/dev/cciss/c0d0p6 vga=0x314     
> splash=silent showopts  pciback.permissive=Y
> pciback.hide=(02:02.1)(05:01.0)(05:02.0)
>     module /boot/initrd-xen_buw
> 
> The domain config, nothing special except for:
> dom0:/etc/xen/xmdom1buw00
> pci = [ '05,02,0' ]
> 
> 
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> http://lists.xensource.com/xen-users
> 



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