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

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Message-ID: <ZmlMuGGY2po6LLCY@nanopsycho.orion>
Date: Wed, 12 Jun 2024 09:22:32 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Jakub Kicinski <kuba@...nel.org>, Cindy Lu <lulu@...hat.com>,
	dtatulea@...dia.com, jasowang@...hat.com,
	virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] vdpa: support set mac address from vdpa tool

Wed, Jun 12, 2024 at 09:15:44AM CEST, mst@...hat.com wrote:
>On Wed, Jun 12, 2024 at 08:29:53AM +0200, Jiri Pirko wrote:
>> Wed, Jun 12, 2024 at 03:58:10AM CEST, kuba@...nel.org wrote:
>> >On Tue, 11 Jun 2024 13:32:32 +0800 Cindy Lu wrote:
>> >> Add new UAPI to support the mac address from vdpa tool
>> >> Function vdpa_nl_cmd_dev_config_set_doit() will get the
>> >> MAC address from the vdpa tool and then set it to the device.
>> >> 
>> >> The usage is: vdpa dev set name vdpa_name mac **:**:**:**:**:**
>> >
>> >Why don't you use devlink?
>> 
>> Fair question. Why does vdpa-specific uapi even exist? To have
>> driver-specific uapi Does not make any sense to me :/
>
>I am not sure which uapi do you refer to? The one this patch proposes or
>the existing one?

Sure, I'm sure pointing out, that devlink should have been the answer
instead of vdpa netlink introduction. That ship is sailed, now we have
unfortunate api duplication which leads to questions like Jakub's one.
That's all :/