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=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 91A3FC433DF for ; Thu, 15 Oct 2020 02:27:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C38522257 for ; Thu, 15 Oct 2020 02:27:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fJvQBsQL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730611AbgJOC1t (ORCPT ); Wed, 14 Oct 2020 22:27:49 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:41271 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725977AbgJOC1s (ORCPT ); Wed, 14 Oct 2020 22:27:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602728866; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iyAP3Rfg7FJTxqxuK3r1p6Qq+lXnyE1YhC8oWkK3KlY=; b=fJvQBsQLC+0gyTMPML38nsUEAZk0wP6GoMqWS6h+d8Bdd1NukMgKxUfJoKZtISH2/p3oby nZG3jECmVoTwTJtJZhpt+9QqB0Sk7U2kK5qFb01Gz0tovd79MJD1E8OutGXWgJ2r2h2aMT 7/gGVEYytk3MF8w4d8v7AFeV4qXio7Q= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-453-v0H6X6AFNsyEv4BRT9Yh5w-1; Wed, 14 Oct 2020 22:27:44 -0400 X-MC-Unique: v0H6X6AFNsyEv4BRT9Yh5w-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3739F1007464; Thu, 15 Oct 2020 02:27:43 +0000 (UTC) Received: from x1.home (ovpn-113-35.phx2.redhat.com [10.3.113.35]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9A5F8610F3; Thu, 15 Oct 2020 02:27:42 +0000 (UTC) Date: Wed, 14 Oct 2020 20:27:42 -0600 From: Alex Williamson To: Greg KH Cc: Laurentiu Tudor , Diana Craciun , linux-kernel@vger.kernel.org, stuyoder@gmail.com, leoyang.li@nxp.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v5 00/13] bus/fsl-mc: Extend mc-bus driver functionalities in preparation for mc-bus VFIO support Message-ID: <20201014202742.43b0ff18@x1.home> In-Reply-To: <20201002140549.GA3492850@kroah.com> References: <20200929085441.17448-1-diana.craciun@oss.nxp.com> <8b3c1222-5dbd-5c51-ac10-8b1c1a69d2d5@nxp.com> <20201002135512.GA3466738@kroah.com> <9e5576fb-6e42-4216-286c-7afb7979ed0b@nxp.com> <20201002140549.GA3492850@kroah.com> Organization: Red Hat MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2 Oct 2020 16:05:49 +0200 Greg KH wrote: > On Fri, Oct 02, 2020 at 04:56:52PM +0300, Laurentiu Tudor wrote: > > Hi Greg, > > > > On 10/2/2020 4:55 PM, Greg KH wrote: > > > On Tue, Sep 29, 2020 at 02:06:41PM +0300, Laurentiu Tudor wrote: > > >> > > >> > > >> On 9/29/2020 11:54 AM, Diana Craciun wrote: > > >>> The vfio-mc bus driver needs some additional services to be exported by the > > >>> mc-bus driver like: > > >>> - a way to reset the DPRC container > > >>> - driver_override support > > >>> - functions to setup/tear down a DPRC > > >>> - functions for allocating the pool of interrupts. In case of VFIO the > > >>> interrupts are not configured at probe time, but later by userspace > > >>> request > > >>> > > >>> v4 -> v5 > > >>> - dprc_celanup should not fail > > >>> > > >>> v3 -> v4 > > >>> - Rebased on the latest kernel. > > >>> - Exported a dprc_remove function > > >>> > > >>> v2 -> v3 > > >>> - Add a new version for dprc_get_obj_region > > >>> - Export the cacheability bus specific bits defines > > >>> > > >>> v1 -> v2 > > >>> - Remove driver_override propagation through various functions > > >>> - Cache the DPRC API version > > >>> > > >>> The patches are related with "vfio/fsl-mc: VFIO support for FSL-MC > > >>> devices" patches, but the series were split because they are targeting > > >>> different subsystems. However, the mc-bus patches may suffer changes > > >>> when addressing the VFIO review comments. > > >>> > > >>> The patches do not address the comment regarding moving driver_override > > >>> in the core code. I prefer not to tie these patches on that change and > > >>> address that separately. > > >>> > > >>> Bharat Bhushan (3): > > >>> bus/fsl-mc: add support for 'driver_override' in the mc-bus > > >>> bus/fsl-mc: Add dprc-reset-container support > > >>> bus/fsl-mc: Extend ICID size from 16bit to 32bit > > >>> > > >>> Diana Craciun (10): > > >>> bus/fsl-mc: Do no longer export the total number of irqs outside > > >>> dprc_scan_objects > > >>> bus/fsl-mc: Add a new parameter to dprc_scan_objects function > > >>> bus/fsl-mc: Set the QMAN/BMAN region flags > > >>> bus/fsl-mc: Cache the DPRC API version > > >>> bus/fsl-mc: Export dprc_scan/dprc_remove functions to be used by > > >>> multiple entities > > >>> bus/fsl-mc: Export a cleanup function for DPRC > > >>> bus/fsl-mc: Add a container setup function > > >>> bus/fsl_mc: Do not rely on caller to provide non NULL mc_io > > >>> bus/fsl-mc: Export IRQ pool handling functions to be used by VFIO > > >>> bus/fsl-mc: Add a new version for dprc_get_obj_region command > > >>> > > >>> drivers/bus/fsl-mc/dprc-driver.c | 190 ++++++++++++++++---------- > > >>> drivers/bus/fsl-mc/dprc.c | 141 +++++++++++++++---- > > >>> drivers/bus/fsl-mc/fsl-mc-allocator.c | 12 +- > > >>> drivers/bus/fsl-mc/fsl-mc-bus.c | 64 ++++++++- > > >>> drivers/bus/fsl-mc/fsl-mc-private.h | 31 ++--- > > >>> drivers/bus/fsl-mc/mc-io.c | 7 +- > > >>> include/linux/fsl/mc.h | 41 +++++- > > >>> 7 files changed, 359 insertions(+), 127 deletions(-) > > >>> > > >> > > >> For the series: > > >> Reviewed-by: Laurentiu Tudor > > >> Acked-by: Laurentiu Tudor > > > > > > Do you want me to take these patches in my tree, or are they going to > > > Linus some other way? > > > > I'm prefectly fine with you picking up the patches through your tree. > > Great, now queued up. Hi Greg, Diana has a vfio bus driver for fsl-mc devices queued up in my tree as well. After a linux-next build failure due to our branches being applied in the wrong order, Stephen advised that the proper way to handle this is to merge a shared branch with this series. Do you have a pull request imminent with this series or if not, would you mind pushing such a branch? Thanks, Alex