Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Wed, Apr 18, 2018 at 11:10 PM, Samudrala, Sridhar wrote: > > On 4/18/2018 10:07 PM, Michael S. Tsirkin wrote: >> >> On Wed, Apr 18, 2018 at 10:00:51PM -0700, Samudrala, Sridhar wrote: >>> >>> On 4/18/2018 9:41 PM, Michael S. Tsirkin wrote: On Wed, Apr 18,

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Wed, Apr 18, 2018 at 10:00 PM, Samudrala, Sridhar wrote: > On 4/18/2018 9:41 PM, Michael S. Tsirkin wrote: >> >> On Wed, Apr 18, 2018 at 04:33:34PM -0700, Samudrala, Sridhar wrote: >>> >>> On 4/17/2018 5:26 PM, Siwei Liu wrote: I ran this with a few folks

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On 4/18/2018 10:07 PM, Michael S. Tsirkin wrote: On Wed, Apr 18, 2018 at 10:00:51PM -0700, Samudrala, Sridhar wrote: On 4/18/2018 9:41 PM, Michael S. Tsirkin wrote: On Wed, Apr 18, 2018 at 04:33:34PM -0700, Samudrala, Sridhar wrote: On 4/17/2018 5:26 PM, Siwei Liu wrote: I ran this with a

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Wed, Apr 18, 2018 at 10:00:51PM -0700, Samudrala, Sridhar wrote: > On 4/18/2018 9:41 PM, Michael S. Tsirkin wrote: > > On Wed, Apr 18, 2018 at 04:33:34PM -0700, Samudrala, Sridhar wrote: > > > On 4/17/2018 5:26 PM, Siwei Liu wrote: > > > > I ran this with a few folks offline and gathered some

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On 4/18/2018 9:41 PM, Michael S. Tsirkin wrote: On Wed, Apr 18, 2018 at 04:33:34PM -0700, Samudrala, Sridhar wrote: On 4/17/2018 5:26 PM, Siwei Liu wrote: I ran this with a few folks offline and gathered some good feedbacks that I'd like to share thus revive the discussion. First of all, as

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Wed, Apr 18, 2018 at 04:33:34PM -0700, Samudrala, Sridhar wrote: > On 4/17/2018 5:26 PM, Siwei Liu wrote: > > I ran this with a few folks offline and gathered some good feedbacks > > that I'd like to share thus revive the discussion. > > > > First of all, as illustrated in the reply below,

Re: [virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On 4/17/2018 5:26 PM, Siwei Liu wrote: I ran this with a few folks offline and gathered some good feedbacks that I'd like to share thus revive the discussion. First of all, as illustrated in the reply below, cloud service providers require transparent live migration. Specifically, the main

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

I ran this with a few folks offline and gathered some good feedbacks that I'd like to share thus revive the discussion. First of all, as illustrated in the reply below, cloud service providers require transparent live migration. Specifically, the main target of our case is to support SR-IOV live

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Mon, Apr 9, 2018 at 4:03 PM, Stephen Hemminger wrote: > On Mon, 9 Apr 2018 15:30:42 -0700 > Siwei Liu wrote: > >> On Mon, Apr 9, 2018 at 3:15 PM, Andrew Lunn wrote: >> >> No, implementation wise I'd avoid changing the class on

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Mon, Apr 9, 2018 at 3:15 PM, Andrew Lunn wrote: >> No, implementation wise I'd avoid changing the class on the fly. What >> I'm looking to is a means to add a secondary class or class aliasing >> mechanism for netdevs that allows mapping for a kernel device >> namespace

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Fri, Apr 6, 2018 at 8:19 PM, Andrew Lunn wrote: > Hi Siwei > >> I think everyone seems to agree not to fiddle with the ":" prefix, but >> rather have a new class of network subsystem under /sys/class thus a >> separate device namespace e.g. /sys/class/net-kernel for those >>

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Wed, Apr 4, 2018 at 10:37 AM, David Miller wrote: > From: David Ahern > Date: Wed, 4 Apr 2018 11:21:54 -0600 > >> It is a netdev so there is no reason to have a separate ip command to >> inspect it. 'ip link' is the right place. > > I agree on this.

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Tue, Apr 3, 2018 at 6:04 PM, David Ahern wrote: > On 4/3/18 9:42 AM, Jiri Pirko wrote: >>> >>> There are other use cases that want to hide a device from userspace. I >> >> What usecases do you have in mind? > > As mentioned in a previous response some kernel drivers create

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Tue, Apr 3, 2018 at 11:19 PM, Jiri Pirko wrote: > Wed, Apr 04, 2018 at 03:04:26AM CEST, dsah...@gmail.com wrote: >>On 4/3/18 9:42 AM, Jiri Pirko wrote: There are other use cases that want to hide a device from userspace. I >>> >>> What usecases do you have in mind?

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Tue, Apr 3, 2018 at 8:42 AM, Jiri Pirko wrote: > Sun, Apr 01, 2018 at 06:11:29PM CEST, dsah...@gmail.com wrote: >>On 4/1/18 3:13 AM, Si-Wei Liu wrote: >>> Hidden netdevice is not visible to userspace such that >>> typical network utilites e.g. ip, ifconfig and et al, >>>

[virtio-dev] Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

On Sun, Apr 1, 2018 at 9:11 AM, David Ahern wrote: > On 4/1/18 3:13 AM, Si-Wei Liu wrote: >> Hidden netdevice is not visible to userspace such that >> typical network utilities e.g. ip, ifconfig and et al, >> cannot sense its existence or configure it. Internally >> hidden