[Xen-users] issue using SRIOV "Unable to start - perhaps the PF driver is not up yet", while PF driver is actually up

[Ashok Anand <ashok.anand@xxxxxxxxx>]

Hi,

I am trying to use SRIOV, usnig xen 4.0 on debian. 

On my dom0, xm pci-list-assignable-devices show that

0000:0f:10.0

0000:0f:10.2

0000:0f:10.4

0000:0f:10.6

0000:0f:11.2

0000:0f:11.4

0000:0f:11.6

these virtual interfaces correspond to eth2, 

i attach 0f:10.0 to a domU ubuntu machine, xm pci-attach ubuntu 0f:10.0

on my dom0 machine, i can ping other machine using eth2, (implying PF on eth2 is active)

on my domU machine, when i attach the virtual function, i get the following messages

[ 2282.688356] ixgbevf 0000:00:00.0: Xen PCI mapped GSI0 to IRQ28

[ 2282.688470] ixgbevf 0000:00:00.0: setting latency timer to 64

[ 2282.690187] ixgbevf 0000:00:00.0: PF still in reset state, assigning new address

while PF on eth2 is  there and active, since i can ping other machine.

Now, when I try to bring up the VF interface on domU, 

 i get the following error

 2476.295582] Unable to start - perhaps the PF Driver isn't up yet

SIOCSIFFLAGS: Network is down

[ 2476.296917] Unable to start - perhaps the PF Driver isn't up yet

SIOCSIFFLAGS: Network is down

and on dmesg on domU, 

[ 2476.295582] Unable to start - perhaps the PF Driver isn't up yet

[ 2476.296917] Unable to start - perhaps the PF Driver isn't up yet

Any thoughts on what could be wrong? I have been struggling with this for quite some time

and would really appreciate your thoughts on it.

Thanks, 

Ashok

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