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From: Stefan Hajnoczi <stefanha@redhat.com>
To: Ilya Maximets <i.maximets@ovn.org>
Cc: "Billy McFall" <bmcfall@redhat.com>,
	"Adrian Moreno" <amorenoz@redhat.com>,
	"Maxime Coquelin" <maxime.coquelin@redhat.com>,
	"Chenbo Xia" <chenbo.xia@intel.com>,
	dev@dpdk.org, "Julia Suvorova" <jusual@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Daniel Berrange" <berrange@redhat.com>
Subject: Re: [dpdk-dev] [RFC 0/4] SocketPair Broker support for vhost and virtio-user.
Date: Thu, 25 Mar 2021 09:35:26 +0000	[thread overview]
Message-ID: <YFxZXvCPjd9p4RLT@stefanha-x1.localdomain> (raw)
In-Reply-To: <597d1ec7-d271-dc0d-522d-b900c9cb00ea@ovn.org>

[-- Attachment #1: Type: text/plain, Size: 1323 bytes --]

On Wed, Mar 24, 2021 at 02:11:31PM +0100, Ilya Maximets wrote:
> On 3/24/21 1:05 PM, Stefan Hajnoczi wrote:
> > On Tue, Mar 23, 2021 at 04:54:57PM -0400, Billy McFall wrote:
> >> On Tue, Mar 23, 2021 at 3:52 PM Ilya Maximets <i.maximets@ovn.org> wrote:
> >>> On 3/23/21 6:57 PM, Adrian Moreno wrote:
> >>>> On 3/19/21 6:21 PM, Stefan Hajnoczi wrote:
> >>>>> On Fri, Mar 19, 2021 at 04:29:21PM +0100, Ilya Maximets wrote:
> >>>>>> On 3/19/21 3:05 PM, Stefan Hajnoczi wrote:
> >>>>>>> On Thu, Mar 18, 2021 at 08:47:12PM +0100, Ilya Maximets wrote:
> >>>>>>>> On 3/18/21 6:52 PM, Stefan Hajnoczi wrote:
> >>>>>>>>> On Wed, Mar 17, 2021 at 09:25:26PM +0100, Ilya Maximets wrote:
> - How to get this fd again after the OVS restart?  CNI will not be invoked
>   at this point to pass a new fd.
> 
> - If application will close the connection for any reason (restart, some
>   reconfiguration internal to the application) and OVS will be re-started
>   at the same time, abstract socket will be gone.  Need a persistent daemon
>   to hold it.

I remembered that these two points can be solved by sd_notify(3)
FDSTORE=1. This requires that OVS runs as a systemd service. Not sure if
this is the case (at least in the CNI use case)?

https://www.freedesktop.org/software/systemd/man/sd_notify.html

Stefan

  parent reply	other threads:[~2021-03-25  9:35 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17 20:25 [dpdk-dev] [RFC 0/4] SocketPair Broker support for vhost and virtio-user Ilya Maximets
2021-03-17 20:25 ` [dpdk-dev] [PATCH 1/4] net/virtio: fix interrupt unregistering for listening socket Ilya Maximets
2021-03-25  8:32   ` Maxime Coquelin
2021-04-07  7:21     ` Xia, Chenbo
2021-03-17 20:25 ` [dpdk-dev] [RFC 2/4] vhost: add support for SocketPair Broker Ilya Maximets
2021-03-17 20:25 ` [dpdk-dev] [RFC 3/4] net/vhost: " Ilya Maximets
2021-03-17 20:25 ` [dpdk-dev] [RFC 4/4] net/virtio: " Ilya Maximets
2021-03-18 17:52 ` [dpdk-dev] [RFC 0/4] SocketPair Broker support for vhost and virtio-user Stefan Hajnoczi
2021-03-18 19:47   ` Ilya Maximets
2021-03-18 20:14     ` Ilya Maximets
2021-03-19 14:16       ` Stefan Hajnoczi
2021-03-19 15:37         ` Ilya Maximets
2021-03-19 16:01           ` Stefan Hajnoczi
2021-03-19 16:02           ` Marc-André Lureau
2021-03-19  8:51     ` Marc-André Lureau
2021-03-19 11:25       ` Ilya Maximets
2021-03-19 14:05     ` Stefan Hajnoczi
2021-03-19 15:29       ` Ilya Maximets
2021-03-19 17:21         ` Stefan Hajnoczi
2021-03-23 17:57           ` Adrian Moreno
2021-03-23 18:27             ` Ilya Maximets
2021-03-23 20:54               ` Billy McFall
2021-03-24 12:05                 ` Stefan Hajnoczi
2021-03-24 13:11                   ` Ilya Maximets
2021-03-24 15:07                     ` Stefan Hajnoczi
2021-03-25  9:35                     ` Stefan Hajnoczi [this message]
2021-03-25 11:00                       ` Ilya Maximets
2021-03-25 16:43                         ` Stefan Hajnoczi
2021-03-25 17:58                           ` Ilya Maximets
2021-03-30 15:01                             ` Stefan Hajnoczi
2021-03-19 14:39 ` Stefan Hajnoczi
2021-03-19 16:11   ` Ilya Maximets
2021-03-19 16:45     ` Ilya Maximets
2021-03-24 20:56       ` Maxime Coquelin
2021-03-24 21:39         ` Ilya Maximets
2021-03-24 21:51           ` Maxime Coquelin
2021-03-24 22:17             ` Ilya Maximets
2023-06-30  3:45 ` Stephen Hemminger

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