From: Jiri Pirko <jiri@resnulli.us>
To: David Miller <davem@davemloft.net>
Cc: dsahern@gmail.com, loseweigh@gmail.com, si-wei.liu@oracle.com,
mst@redhat.com, stephen@networkplumber.org,
alexander.h.duyck@intel.com, jesse.brandeburg@intel.com,
kubakici@wp.pl, jasowang@redhat.com, sridhar.samudrala@intel.com,
netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org,
virtio-dev@lists.oasis-open.org
Subject: Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice
Date: Wed, 4 Apr 2018 20:20:51 +0200 [thread overview]
Message-ID: <20180404182051.GD2209@nanopsycho> (raw)
In-Reply-To: <20180404.133749.1802514210170809419.davem@davemloft.net>
Wed, Apr 04, 2018 at 07:37:49PM CEST, davem@davemloft.net wrote:
>From: David Ahern <dsahern@gmail.com>
>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.
>
>What I really don't understand still is the use case... really.
>
>So there are control netdevs, what exactly is the problem with that?
>
>Are we not exporting enough information for applications to handle
>these devices sanely? If so, then's let add that information.
>
>We can set netdev->type to ETH_P_LINUXCONTROL or something like that.
>
>Another alternative is to add an interface flag like IFF_CONTROL or
>similar, and that probably is much nicer.
>
>Hiding the devices means that we acknowledge that applications are
>currently broken with control netdevs... and we want them to stay
>broken!
>
>That doesn't sound like a good plan to me.
>
>So let's fix handling of control netdevs instead of hiding them.
Exactly. Don't workaround userspace issues by kernel patches.
next prev parent reply other threads:[~2018-04-04 18:20 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-01 9:13 [virtio-dev] [RFC PATCH 0/3] Userspace compatible driver model for virtio_bypass Si-Wei Liu
2018-04-01 9:13 ` Si-Wei Liu
2018-04-01 9:13 ` [virtio-dev] [RFC PATCH 1/3] qemu: virtio-bypass should explicitly bind to a passthrough device Si-Wei Liu
2018-04-01 9:13 ` Si-Wei Liu
2018-04-03 12:25 ` [virtio-dev] " Michael S. Tsirkin
2018-04-03 12:25 ` Michael S. Tsirkin
2018-04-04 8:02 ` [virtio-dev] " Siwei Liu
2018-04-04 8:02 ` Siwei Liu
2018-04-04 8:02 ` Siwei Liu
2018-04-05 15:31 ` Paolo Bonzini
2018-04-07 2:54 ` Siwei Liu
2018-04-07 2:54 ` Siwei Liu
2018-04-07 2:54 ` Siwei Liu
2018-04-03 12:25 ` Michael S. Tsirkin
2018-04-01 9:13 ` [virtio-dev] [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice Si-Wei Liu
2018-04-01 9:13 ` Si-Wei Liu
2018-04-01 16:11 ` David Ahern
2018-04-03 7:40 ` [virtio-dev] " Siwei Liu
2018-04-03 7:40 ` Siwei Liu
2018-04-03 14:57 ` David Ahern
2018-04-03 7:40 ` Siwei Liu
2018-04-03 15:42 ` Jiri Pirko
2018-04-03 19:23 ` Siwei Liu
2018-04-03 19:23 ` [virtio-dev] " Siwei Liu
2018-04-03 19:23 ` Siwei Liu
2018-04-04 1:04 ` David Ahern
2018-04-04 6:19 ` Jiri Pirko
2018-04-04 6:19 ` Jiri Pirko
2018-04-04 8:01 ` Siwei Liu
2018-04-04 8:01 ` [virtio-dev] " Siwei Liu
2018-04-04 8:01 ` Siwei Liu
2018-04-04 7:36 ` Siwei Liu
2018-04-04 7:36 ` [virtio-dev] " Siwei Liu
2018-04-04 7:36 ` Siwei Liu
2018-04-04 17:21 ` David Ahern
2018-04-04 17:37 ` David Miller
2018-04-04 18:20 ` Jiri Pirko [this message]
2018-04-04 18:20 ` Jiri Pirko
2018-04-07 2:32 ` [virtio-dev] " Siwei Liu
2018-04-07 2:32 ` Siwei Liu
2018-04-07 3:19 ` Andrew Lunn
2018-04-09 22:07 ` [virtio-dev] " Siwei Liu
2018-04-09 22:07 ` Siwei Liu
2018-04-09 22:15 ` Andrew Lunn
2018-04-09 22:15 ` Andrew Lunn
2018-04-09 22:30 ` [virtio-dev] " Siwei Liu
2018-04-09 22:30 ` Siwei Liu
2018-04-09 23:03 ` Stephen Hemminger
2018-04-09 23:31 ` [virtio-dev] " Siwei Liu
2018-04-09 23:31 ` Siwei Liu
2018-04-09 23:31 ` Siwei Liu
2018-04-09 23:03 ` Stephen Hemminger
2018-04-09 22:07 ` Siwei Liu
2018-04-08 16:32 ` David Miller
2018-04-08 16:32 ` David Miller
2018-04-10 6:48 ` [virtio-dev] " Siwei Liu
2018-04-10 6:48 ` Siwei Liu
2018-04-18 0:26 ` [virtio-dev] " Siwei Liu
2018-04-18 0:26 ` Siwei Liu
2018-04-18 23:33 ` [virtio-dev] " Samudrala, Sridhar
2018-04-18 23:33 ` Samudrala, Sridhar
2018-04-18 23:33 ` Samudrala, Sridhar
2018-04-19 4:41 ` [virtio-dev] " Michael S. Tsirkin
2018-04-19 4:41 ` Michael S. Tsirkin
2018-04-19 4:41 ` Michael S. Tsirkin
2018-04-19 5:00 ` [virtio-dev] " Samudrala, Sridhar
2018-04-19 5:00 ` Samudrala, Sridhar
2018-04-19 5:07 ` Michael S. Tsirkin
2018-04-19 5:07 ` Michael S. Tsirkin
2018-04-19 6:10 ` [virtio-dev] " Samudrala, Sridhar
2018-04-19 6:10 ` Samudrala, Sridhar
2018-04-19 6:43 ` Siwei Liu
2018-04-19 6:43 ` Siwei Liu
2018-04-19 6:43 ` Siwei Liu
2018-04-19 6:10 ` Samudrala, Sridhar
2018-04-19 5:07 ` Michael S. Tsirkin
2018-04-19 6:31 ` Siwei Liu
2018-04-19 6:31 ` Siwei Liu
2018-04-19 6:31 ` [virtio-dev] " Siwei Liu
2018-04-19 5:00 ` Samudrala, Sridhar
2018-04-18 0:26 ` Siwei Liu
2018-04-10 6:48 ` Siwei Liu
2018-04-04 17:37 ` David Miller
2018-04-04 18:02 ` Siwei Liu
2018-04-04 18:02 ` Siwei Liu
2018-04-04 8:28 ` [virtio-dev] " Siwei Liu
2018-04-04 8:28 ` Siwei Liu
2018-04-04 17:37 ` David Ahern
2018-04-04 17:42 ` David Miller
2018-04-04 17:42 ` David Miller
2018-04-04 17:44 ` Stephen Hemminger
2018-04-04 17:44 ` Stephen Hemminger
2018-04-04 20:08 ` Andrew Lunn
2018-04-04 20:08 ` Andrew Lunn
2018-04-04 8:28 ` Siwei Liu
2018-04-03 15:42 ` Jiri Pirko
2018-04-03 17:35 ` Stephen Hemminger
[not found] ` <CADGSJ23vZdtQzWdc_6M_Hr4MUej--wgvJ785DwRF3VaPWS1rpA@mail.gmail.com>
[not found] ` <20180403160834.51594373@xeon-e3>
2018-04-06 21:29 ` [virtio-dev] " Siwei Liu
2018-04-06 21:29 ` Siwei Liu
2018-04-06 21:29 ` Siwei Liu
2018-04-03 17:35 ` Stephen Hemminger
2018-04-01 9:13 ` [virtio-dev] [RFC PATCH 3/3] virtio_net: make lower netdevs for virtio_bypass hidden Si-Wei Liu
2018-04-01 9:13 ` Si-Wei Liu
2018-04-03 12:20 ` [virtio-dev] " Michael S. Tsirkin
2018-04-03 12:20 ` Michael S. Tsirkin
2018-04-04 8:03 ` [virtio-dev] " Siwei Liu
2018-04-04 8:03 ` Siwei Liu
2018-04-04 8:03 ` Siwei Liu
2018-04-03 12:20 ` Michael S. Tsirkin
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