linux-kernel - Re: [PATCH 1/2] vdpa: support set mac address from vdpa tool

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Message-ID: <20240617121929-mutt-send-email-mst@kernel.org>
Date: Mon, 17 Jun 2024 12:20:19 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Jiri Pirko <jiri@...nulli.us>, Parav Pandit <parav@...dia.com>,
	Jason Wang <jasowang@...hat.com>, Cindy Lu <lulu@...hat.com>,
	Dragos Tatulea <dtatulea@...dia.com>,
	"virtualization@...ts.linux-foundation.org" <virtualization@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH 1/2] vdpa: support set mac address from vdpa tool

On Mon, Jun 17, 2024 at 08:20:02AM -0700, Jakub Kicinski wrote:
> On Mon, 17 Jun 2024 09:47:21 -0400 Michael S. Tsirkin wrote:
> > I don't know what this discussion is about, at this point.
> > For better or worse, vdpa gained interfaces for provisioning
> > new devices. Yes the solution space was wide but it's been there
> > for years so kind of too late to try and make people
> > move to another interface for that.
> > 
> > Having said that, vdpa interfaces are all built around
> > virtio spec. Let's try to stick to that.
> 
> But the virtio spec doesn't allow setting the MAC...
> I'm probably just lost in the conversation but there's hypervisor side
> and there is user/VM side, each of them already has an interface to set
> the MAC. The MAC doesn't matter, but I want to make sure my mental model
> matches reality in case we start duplicating too much..

An obvious part of provisioning is specifying the config space
of the device.

-- 
MST