[dpdk-dev] [PATCH] vhost: fix driver unregister for client mode

[Yuanhan Liu]

On Wed, Jul 20, 2016 at 11:32:43AM +0300, Ilya Maximets wrote:
> Currently while calling of 'rte_vhost_driver_unregister()' connection
> to QEMU will not be closed. This leads to inability to register driver
> again and reconnect to same virtual machine.
> 
> This scenario is reproducible with OVS. While executing of the following
> command vhost port will be re-created (will be executed
> 'rte_vhost_driver_register()' followed by 'rte_vhost_driver_unregister()')
> network will be broken and QEMU possibly will crash:
> 
> 	ovs-vsctl set Interface vhost1 ofport_request=15
> 
> Fix this by closing all established connections on driver unregister and
> removing of pending connections from reconnection list.
> 
> Fixes: 64ab701c3d1e ("vhost: add vhost-user client mode")
> Signed-off-by: Ilya Maximets <i.maximets at samsung.com>

Ilya, Thanks a lot for the test and fix. It looks good to me. But
somehow I would like have a test tomorrow.

	--yliu