From: Stefano Garzarella <sgarzare@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org,
Dexuan Cui <decui@microsoft.com>,
Jorgen Hansen <jhansen@vmware.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH v3] vsock.7: add VMADDR_CID_LOCAL description
Date: Tue, 18 Feb 2020 10:59:40 +0100 [thread overview]
Message-ID: <20200218095940.vnyva3lknsfsxxs5@steredhat> (raw)
In-Reply-To: <20200218095319.GB786556@stefanha-x1.localdomain>
On Tue, Feb 18, 2020 at 09:53:19AM +0000, Stefan Hajnoczi wrote:
> On Mon, Feb 17, 2020 at 06:31:21PM +0100, Stefano Garzarella wrote:
> > Linux 5.6 added the new well-known VMADDR_CID_LOCAL for
> > local communication.
> >
> > This patch explains how to use it and remove the legacy
> > VMADDR_CID_RESERVED no longer available.
> >
> > Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
> > Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
> > ---
> > v3:
> > * rephrased "Previous versions" part [Jorgen]
> > v2:
> > * rephrased "Local communication" description [Stefan]
> > * added a mention of previous versions that supported
> > loopback only in the guest [Stefan]
> > ---
> > man7/vsock.7 | 19 +++++++++++++++++--
> > 1 file changed, 17 insertions(+), 2 deletions(-)
> >
> > diff --git a/man7/vsock.7 b/man7/vsock.7
> > index c5ffcf07d..219e3505f 100644
> > --- a/man7/vsock.7
> > +++ b/man7/vsock.7
> > @@ -127,8 +127,8 @@ There are several special addresses:
> > means any address for binding;
> > .B VMADDR_CID_HYPERVISOR
> > (0) is reserved for services built into the hypervisor;
> > -.B VMADDR_CID_RESERVED
> > -(1) must not be used;
> > +.B VMADDR_CID_LOCAL
> > +(1) is the well-known address for local communication (loopback);
> > .B VMADDR_CID_HOST
> > (2)
> > is the well-known address of the host.
> > @@ -164,6 +164,16 @@ Consider using
> > .B VMADDR_CID_ANY
> > when binding instead of getting the local CID with
> > .BR IOCTL_VM_SOCKETS_GET_LOCAL_CID .
> > +.SS Local communication
> > +The
> > +.B VMADDR_CID_LOCAL
> > +(1) directs packets to the same host that generated them. This is useful
>
> Please see my comment on v2. "The VMADDR_CID_LOCAL (1) directs packets
> ..." sounds unnatural. Please drop "The".
I received it just now :O but you sent it 4 days ago!
Sorry for that!
I'll send v4 dropping "The".
Thanks,
Stefano
prev parent reply other threads:[~2020-02-18 9:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 17:31 [PATCH v3] vsock.7: add VMADDR_CID_LOCAL description Stefano Garzarella
2020-02-18 9:53 ` Stefan Hajnoczi
2020-02-18 9:59 ` Stefano Garzarella [this message]
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