Re: Add a helper function in PCI IOV to get VF device

[Frank Pan]

> What is "VF" and "PF" here?
Virtual function/Physical function

> No, the network core should create that symlink, not the driver, right?
They are not network interfaces, so network core
won't link them. They are for VM uses. I may need
to explain this more clearly.

PF's interface in sysfs is /sys/class/net/ethx, while
VF has no interface. So 82576 driver makes directories
to provide interface-like sysfs entries: /sys/class/net/ethx/vf[1-7]
Make a link to this directory form VF's pci device is
almost impossible, because PF doesn't know VF's bdf.

Thanks for reply.

-- 
Frank Pan

Computer Science and Technology
Tsinghua University
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