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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 D7C78C433ED for ; Tue, 13 Apr 2021 19:05:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA4E5613CB for ; Tue, 13 Apr 2021 19:05:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348021AbhDMTFb (ORCPT ); Tue, 13 Apr 2021 15:05:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:60716 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231734AbhDMTFb (ORCPT ); Tue, 13 Apr 2021 15:05:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F37F9613CA; Tue, 13 Apr 2021 19:05:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618340711; bh=4Ni2D0JUJ42Est7AJ0WpTT8dYYJFoHWL2Gb1omodwC4=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=E5tOj1ht7JAZoA45fjn5AJPCOcYkUxA6HJR0noeyrwa0ogD1ofa+bAfI/4gy9GRAt zcSV7bWTOSQ64roa6Bfwe4x48tAuqG3Tx5zO3fbr8NhZB3J86SFA109BXiXhKxDyl4 MDSN+61Bf0p8Rq1jurlKFVNLiRTdBHMdW5ccdYQ7FhuS+1bOL4Je3dbCueP5CjFQ2S bWueyMhZRODLv8geYEgzBuBBhjm/08so5aJf6uefuYyiDOulL4UHysVJcgzdrYpzsy 0jDiXfEh80Hl0sZbCn7iM4VVeGwZR2UvInbWe+BvGPMVzOnMcal0S/eVcQ4gpnLcKV Ez3CDMD1OBJ3A== Date: Tue, 13 Apr 2021 14:05:09 -0500 From: Bjorn Helgaas To: Vidya Sagar Cc: Matthew Wilcox , bhelgaas@google.com, lorenzo.pieralisi@arm.com, amurray@thegoodpenguin.co.uk, robh@kernel.org, jingoohan1@gmail.com, gustavo.pimentel@synopsys.com, Krishna Thota , Manikanta Maddireddy , Thierry Reding , Jonathan Hunter , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: Re: Device driver location for the PCIe root port's DMA engine Message-ID: <20210413190509.GA2256814@bjorn-Precision-5520> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5fe57865-41f8-67c5-e6a6-9abe7252591c@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Tue, Apr 13, 2021 at 11:42:15PM +0530, Vidya Sagar wrote: > On 4/13/2021 3:23 AM, Bjorn Helgaas wrote: > > The existing port services (AER, DPC, hotplug, etc) are things the > > device advertises via the PCI Capabilities defined by the generic PCIe > > spec, and in my opinion the support for them should be directly part > > of the PCI core and activated when the relevant Capability is present. > Is there an on-going activity to remove port service drivers are move > AER/DPC/Hotplug etc.. handling within PCI core? No, not that I'm aware of. I'd just like to avoid extending that model. Bjorn