cxgb4vf: Quiesce Virtual Interfaces on shutdown ...
When a Virtual Machine is rebooted, KVM currently fails to issue a Function Level Reset against any "Attached PCI Devices" (AKA "PCI Passthrough"). In addition to leaving the attached device in a random state in the next booted kernel (which sort of violates the entire idea of a reboot reseting hardware state), this leaves our peer thinking that the link is still up. (Note that a bug has been filed with the KVM folks, #25332, but there's been no response on that as of yet.) So, we add a "->shutdown()" method for the Virtual Function PCI Device to handle administrative shutdowns like a reboot. Signed-off-by:Casey Leedom <leedom@chelsio.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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843635e0
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