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Message-ID: <20220817130044-mutt-send-email-mst@kernel.org>
Date: Wed, 17 Aug 2022 13:02:52 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Bobby Eshleman <bobbyeshleman@...il.com>
Cc: Bobby Eshleman <bobby.eshleman@...il.com>,
Bobby Eshleman <bobby.eshleman@...edance.com>,
Cong Wang <cong.wang@...edance.com>,
Jiang Wang <jiang.wang@...edance.com>,
Stefan Hajnoczi <stefanha@...hat.com>,
Stefano Garzarella <sgarzare@...hat.com>,
Jason Wang <jasowang@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
"K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Stephen Hemminger <sthemmin@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-hyperv@...r.kernel.org
Subject: Re: [PATCH 0/6] virtio/vsock: introduce dgrams, sk_buff, and qdisc
On Tue, Aug 16, 2022 at 09:42:51AM +0000, Bobby Eshleman wrote:
> > The basic question to answer then is this: with a net device qdisc
> > etc in the picture, how is this different from virtio net then?
> > Why do you still want to use vsock?
> >
>
> When using virtio-net, users looking for inter-VM communication are
> required to setup bridges, TAPs, allocate IP addresses or setup DNS,
> etc... and then finally when you have a network, you can open a socket
> on an IP address and port. This is the configuration that vsock avoids.
> For vsock, we just need a CID and a port, but no network configuration.
Surely when you mention DNS you are going overboard? vsock doesn't
remove the need for DNS as much as it does not support it.
--
MST
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