CA-140271: Turn off the carrier if the guest is not able to receive
CA-140271: Remove unnecessary continue
CA-140271: Don't deschedule NAPI when carrier off
CA-142275: Synchronisation between core driver and netback
CA-142275: Fix line endings
Revert CA-142275 changes - causing carnage on the BVT
CA-135938: Disconnect NFS session on RPC retry

This patch re-introduces the behaviour, where RPC disconnects
NFS sessions when timeo expires.