From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: virtio-dev-return-7793-cohuck=redhat.com@lists.oasis-open.org Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id 5BBB0986010 for ; Thu, 17 Sep 2020 17:03:39 +0000 (UTC) References: <20200824143708.5664-1-ndragazis@arrikto.com> <20200824143708.5664-6-ndragazis@arrikto.com> From: Alex =?utf-8?Q?Benn=C3=A9e?= In-reply-to: <20200824143708.5664-6-ndragazis@arrikto.com> Date: Thu, 17 Sep 2020 18:01:51 +0100 Message-ID: <878sd8xrpc.fsf@linaro.org> MIME-Version: 1.0 Subject: [virtio-dev] Re: [PATCH 05/11] doorbells: Introduce doorbells Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable To: Nikos Dragazis Cc: virtio-dev@lists.oasis-open.org, Stefan Hajnoczi , "Michael S . Tsirkin" List-ID: Nikos Dragazis writes: > Introduce doorbells as a new virtio device resource. > > Signed-off-by: Nikos Dragazis > --- > content.tex | 2 ++ > doorbells.tex | 12 ++++++++++++ > 2 files changed, 14 insertions(+) > create mode 100644 doorbells.tex > > diff --git a/content.tex b/content.tex > index 94a3693..38ed709 100644 > --- a/content.tex > +++ b/content.tex > @@ -373,6 +373,8 @@ \section{Driver Notifications} \label{sec:Virtqueues = / Driver notifications} > =20 > \input{shared-mem.tex} > =20 > +\input{doorbells.tex} > + > \chapter{General Initialization And Device Operation}\label{sec:General = Initialization And Device Operation} > =20 > We start with an overview of device initialization, then expand on the > diff --git a/doorbells.tex b/doorbells.tex > new file mode 100644 > index 0000000..e917536 > --- /dev/null > +++ b/doorbells.tex > @@ -0,0 +1,12 @@ > +\section{Doorbells}\label{sec:Basic Facilities of a Virtio device / Door= bells} > + > +A doorbell is a device register that triggers a notification to the > +device when accessed by the driver. > + > +Doorbells are an additional facility available to devices that need to > +support receiving driver notifications for events other than virtqueue > +activity (i.e., notifications that are device-specific). > + > +A device may be exporting multiple doorbells to the driver. > + > +The location of doorbells is found in a transport-specific way. I just realised we don't specify anything about delivery. Should we say something about lack of acknowledgement or guarantee that the notification is delivered here?=20 --=20 Alex Benn=C3=A9e --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org