[Qemu-devel] error when doing passthrough of bcm netextreme II 10 G device

[Qemu-devel] error when doing passthrough of bcm netextreme II 10 G device

[Sinha, Ani]

Hi Folks :

I  am trying to assinga bcm netextreme II 10 G eth device to a guest using
PCI passthrough in QEMU.

01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711
10-Gigabit PCIe
01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711
10-Gigabit PCIe



qemu> device_add pci-assign,host=01:00.0,id=e10g

The device shows up in the guest but the driver is enable to attach to it :

bnx2x 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ
10
bnx2x 0000:00:05.0: setting latency timer to 64
bnx2x: Cannot find power management capability, aborting
bnx2x 0000:00:05.0: PCI INT A disabled
bnx2x: probe of 0000:00:05.0 failed with error -5



As you can see, it errs with EIO (-5). Any ideas why this might be the
case? I am using 2.6.34.6 in the host, 2.6.27.39 in the guest and qemu
0.12.4 :
qemu-system-x86_64 --help
QEMU PC emulator version 0.12.4 (qemu-kvm-0.12.4), Copyright (c) 2003-2008
Fabrice Bellard



Thanks in advance for the help,
Ani.


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Re: [Qemu-devel] error when doing passthrough of bcm netextreme II 10 G device

[Jan Kiszka]

On 2011-07-21 20:19, Sinha, Ani wrote:
> Hi Folks :
> 
> I  am trying to assinga bcm netextreme II 10 G eth device to a guest using
> PCI passthrough in QEMU.
> 
> 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711
> 10-Gigabit PCIe
> 01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711
> 10-Gigabit PCIe
> 
> 
> 
> qemu> device_add pci-assign,host=01:00.0,id=e10g
> 
> The device shows up in the guest but the driver is enable to attach to it :
> 
> bnx2x 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ
> 10
> bnx2x 0000:00:05.0: setting latency timer to 64
> bnx2x: Cannot find power management capability, aborting
> bnx2x 0000:00:05.0: PCI INT A disabled
> bnx2x: probe of 0000:00:05.0 failed with error -5
> 
> 
> 
> As you can see, it errs with EIO (-5). Any ideas why this might be the
> case? I am using 2.6.34.6 in the host, 2.6.27.39 in the guest and qemu
> 0.12.4 :

You should retry with qemu-kvm >= 0.14.

Jan

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