Re: [virtio-dev] [PATCH v4] content: Introduce VIRTIO_NET_F_STANDBY feature

2018-10-18 Thread Michael S. Tsirkin
On Wed, Oct 10, 2018 at 06:26:50PM -0700, Siwei Liu wrote: > On Fri, Oct 5, 2018 at 12:18 PM Michael S. Tsirkin wrote: > > > > On Thu, Oct 04, 2018 at 05:03:14PM -0700, Siwei Liu wrote: > > > On Tue, Oct 2, 2018 at 5:43 AM Michael S. Tsirkin wrote: > > > > > > > > On Tue, Oct 02, 2018 at 01:42:09

Re: [virtio-dev] [PATCH v4] content: Introduce VIRTIO_NET_F_STANDBY feature

2018-10-18 Thread Michael S. Tsirkin
On Thu, Oct 18, 2018 at 04:20:13PM -0700, Siwei Liu wrote: > To be honest, I don't understand why there's resistance of using PV to > initiate datapath switching, I see no resistance. I see lack of man-power. Any extension needs: 1- guest driver support 2- qemu support 3- spec documentation Curr

Re: [virtio-dev] [PATCH v4] content: Introduce VIRTIO_NET_F_STANDBY feature

2018-10-18 Thread Siwei Liu
To be honest, I don't understand why there's resistance of using PV to initiate datapath switching, and the point of relying on very specifc PF behavior for datapath swtiching, There's even no point to alter the SR-IOV driver model to accomondate the (zero) downtime requirement, how potentally can