From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D910FC433E0 for ; Wed, 20 May 2020 07:20:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 999B6207ED for ; Wed, 20 May 2020 07:20:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589959235; bh=35iXB/au3tBZIql3xx3Q4NWV5Vl+PG6r3+MDwXmNFUA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=uyJlIDIuwkQ9n8XDQla3zkTRGPuF3ZexBToeOLU5OjKZXo61Tn+o1GqHahgizPgxd +wdS94UsbuckfZ19P/25w/zXAgEiBXz4zpfwSeOW0DnSorufYgKQA3iccbubNwuteu 4mAbzzGsUvg994F35ifjH9ByWcr7pvATq1MA6Pwc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726447AbgETHUf (ORCPT ); Wed, 20 May 2020 03:20:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:54192 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726224AbgETHUe (ORCPT ); Wed, 20 May 2020 03:20:34 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 92D11207D3; Wed, 20 May 2020 07:20:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589959234; bh=35iXB/au3tBZIql3xx3Q4NWV5Vl+PG6r3+MDwXmNFUA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YiD7pyHhe5Xn5Jj2hrR/JWfZENU9AHUdXV5c7+mkrUlb6mfh1HxvMdhEXLjmXdBpq 4jglOHQbIJIE6JChRFLcOKVhSVRPmBBU4HPF9aVZJyiKDu+4kWY+OjguJhsvebbKPf mTWdS3XoqZMkONyUQ/AUdoC6E5+L5qI/hkhIYEmc= Date: Wed, 20 May 2020 09:20:31 +0200 From: Greg KH To: Jeff Kirsher Cc: davem@davemloft.net, Ranjani Sridharan , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, jgg@ziepe.ca, pierre-louis.bossart@linux.intel.com, Fred Oh Subject: Re: [net-next v4 10/12] ASoC: SOF: Introduce descriptors for SOF client Message-ID: <20200520072031.GB2365898@kroah.com> References: <20200520070227.3392100-1-jeffrey.t.kirsher@intel.com> <20200520070227.3392100-11-jeffrey.t.kirsher@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200520070227.3392100-11-jeffrey.t.kirsher@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Wed, May 20, 2020 at 12:02:25AM -0700, Jeff Kirsher wrote: > From: Ranjani Sridharan > > A client in the SOF (Sound Open Firmware) context is a > device that needs to communicate with the DSP via IPC > messages. The SOF core is responsible for serializing the > IPC messages to the DSP from the different clients. One > example of an SOF client would be an IPC test client that > floods the DSP with test IPC messages to validate if the > serialization works as expected. Multi-client support will > also add the ability to split the existing audio cards > into multiple ones, so as to e.g. to deal with HDMI with a > dedicated client instead of adding HDMI to all cards. > > This patch introduces descriptors for SOF client driver > and SOF client device along with APIs for registering > and unregistering a SOF client driver, sending IPCs from > a client device and accessing the SOF core debugfs root entry. > > Along with this, add a couple of new members to struct > snd_sof_dev that will be used for maintaining the list of > clients. Here is where you are first using a virtual bus driver, and yet, no mention of that at all in the changelog. Why? Why are virtual devices/busses even needed here? greg k-h