Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Mon, Jan 29, 2018 at 10:24 AM, Michael S. Tsirkin wrote: > On Sun, Jan 28, 2018 at 08:26:53PM -0800, Alexander Duyck wrote: >> >> > For live migration with advanced usecases that Siwei is suggesting, i >> >> > think we need a new driver with a new device type that can track

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Sun, Jan 28, 2018 at 3:02 PM, Stephen Hemminger wrote: > On Fri, 26 Jan 2018 18:30:03 -0800 > Jakub Kicinski wrote: > >> On Fri, 26 Jan 2018 15:30:35 -0800, Samudrala, Sridhar wrote: >> > On 1/26/2018 2:47 PM, Jakub Kicinski wrote: >> > > On Sat, 27

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Sun, Jan 28, 2018 at 08:26:53PM -0800, Alexander Duyck wrote: > >> > For live migration with advanced usecases that Siwei is suggesting, i > >> > think we need a new driver with a new device type that can track the > >> > VF specific feature settings even when the VF driver is unloaded. > > > >

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Sun, Jan 28, 2018 at 1:01 PM, Samudrala, Sridhar wrote: > > > On 1/28/2018 12:18 PM, Alexander Duyck wrote: >> >> On Sun, Jan 28, 2018 at 11:18 AM, Samudrala, Sridhar >> wrote: >>> >>> On 1/28/2018 9:35 AM, Alexander Duyck wrote:

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, 26 Jan 2018 18:30:03 -0800 Jakub Kicinski wrote: > On Fri, 26 Jan 2018 15:30:35 -0800, Samudrala, Sridhar wrote: > > On 1/26/2018 2:47 PM, Jakub Kicinski wrote: > > > On Sat, 27 Jan 2018 00:14:20 +0200, Michael S. Tsirkin wrote: > > >> On Fri, Jan 26, 2018 at

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On 1/28/2018 12:18 PM, Alexander Duyck wrote: On Sun, Jan 28, 2018 at 11:18 AM, Samudrala, Sridhar wrote: On 1/28/2018 9:35 AM, Alexander Duyck wrote: On Fri, Jan 26, 2018 at 9:58 PM, Jakub Kicinski wrote: On Fri, 26 Jan 2018 21:33:01 -0800,

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Sun, Jan 28, 2018 at 11:18 AM, Samudrala, Sridhar wrote: > On 1/28/2018 9:35 AM, Alexander Duyck wrote: >> >> On Fri, Jan 26, 2018 at 9:58 PM, Jakub Kicinski wrote: >>> >>> On Fri, 26 Jan 2018 21:33:01 -0800, Samudrala, Sridhar wrote: >> >>

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On 1/28/2018 9:35 AM, Alexander Duyck wrote: On Fri, Jan 26, 2018 at 9:58 PM, Jakub Kicinski wrote: On Fri, 26 Jan 2018 21:33:01 -0800, Samudrala, Sridhar wrote: 3 netdev model breaks this configuration starting with the creation and naming of the 2 devices to udev needing to

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, Jan 26, 2018 at 9:58 PM, Jakub Kicinski wrote: > On Fri, 26 Jan 2018 21:33:01 -0800, Samudrala, Sridhar wrote: >> >> 3 netdev model breaks this configuration starting with the creation >> >> and naming of the 2 devices to udev needing to be aware of master and >> >> slave

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, 26 Jan 2018 21:33:01 -0800, Samudrala, Sridhar wrote: > >> 3 netdev model breaks this configuration starting with the creation > >> and naming of the 2 devices to udev needing to be aware of master and > >> slave virtio-net devices. > > I don't understand this comment. There is one

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On 1/26/2018 6:30 PM, Jakub Kicinski wrote: On Fri, 26 Jan 2018 15:30:35 -0800, Samudrala, Sridhar wrote: On 1/26/2018 2:47 PM, Jakub Kicinski wrote: On Sat, 27 Jan 2018 00:14:20 +0200, Michael S. Tsirkin wrote: On Fri, Jan 26, 2018 at 01:46:42PM -0800, Siwei Liu wrote: and the VM is not

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, 26 Jan 2018 15:30:35 -0800, Samudrala, Sridhar wrote: > On 1/26/2018 2:47 PM, Jakub Kicinski wrote: > > On Sat, 27 Jan 2018 00:14:20 +0200, Michael S. Tsirkin wrote: > >> On Fri, Jan 26, 2018 at 01:46:42PM -0800, Siwei Liu wrote: > and the VM is not expected to do any

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On 1/26/2018 2:47 PM, Jakub Kicinski wrote: On Sat, 27 Jan 2018 00:14:20 +0200, Michael S. Tsirkin wrote: On Fri, Jan 26, 2018 at 01:46:42PM -0800, Siwei Liu wrote: and the VM is not expected to do any tuning/optimizations on the VF driver directly, i think the current patch that follows the

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Sat, 27 Jan 2018 00:14:20 +0200, Michael S. Tsirkin wrote: > On Fri, Jan 26, 2018 at 01:46:42PM -0800, Siwei Liu wrote: > > > and the VM is not expected to do any tuning/optimizations on the VF driver > > > directly, > > > i think the current patch that follows the netvsc model of 2 > > >

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, Jan 26, 2018 at 01:46:42PM -0800, Siwei Liu wrote: > > and the VM is not expected to do any tuning/optimizations on the VF driver > > directly, > > i think the current patch that follows the netvsc model of 2 netdevs(virtio > > and vf) should > > work fine. > > OK. For your use case

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On Fri, Jan 26, 2018 at 8:51 AM, Samudrala, Sridhar wrote: > > > On 1/26/2018 12:14 AM, Siwei Liu wrote: >> >> On Tue, Jan 23, 2018 at 2:58 PM, Michael S. Tsirkin >> wrote: >>> >>> On Tue, Jan 23, 2018 at 12:24:47PM -0800, Siwei Liu wrote:

Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available

On 1/26/2018 12:14 AM, Siwei Liu wrote: On Tue, Jan 23, 2018 at 2:58 PM, Michael S. Tsirkin wrote: On Tue, Jan 23, 2018 at 12:24:47PM -0800, Siwei Liu wrote: On Mon, Jan 22, 2018 at 1:41 PM, Michael S. Tsirkin wrote: On Mon, Jan 22, 2018 at 12:27:14PM