netdev - Re: [Intel-wired-lan] [iwl-next v4 1/1] iidc/ice/irdma: Update IDC to support multiple consumers

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Message-ID: <20250318172026.GA9311@nvidia.com>
Date: Tue, 18 Mar 2025 14:20:26 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: "Samudrala, Sridhar" <sridhar.samudrala@...el.com>
Cc: Leon Romanovsky <leon@...nel.org>,
	"Ertman, David M" <david.m.ertman@...el.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"Nikolova, Tatyana E" <tatyana.e.nikolova@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [Intel-wired-lan] [iwl-next v4 1/1] iidc/ice/irdma: Update IDC
 to support multiple consumers

On Tue, Mar 18, 2025 at 10:01:36AM -0700, Samudrala, Sridhar wrote:

> Yes. Today irdma uses exported symbols from i40e and ice and loading irdma
> results in both modules to be loaded even when only type of NIC is present
> on a system. This series is trying to remove that dependency by using
> callbacks.

If you really have two different core drivers that can provide the
same API then I think you are stuck with function pointers :\

It is really weird though, why are their two core drivers that can
provide the same API? Is this because intel keeps rewriting their
driver stack every few years?

Jason