From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yijing Wang Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms Date: Mon, 29 Sep 2014 18:13:17 +0800 Message-ID: <542930BD.2090907@huawei.com> References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> Sender: linux-ia64-owner@vger.kernel.org To: Lucas Stach Cc: Thierry Reding , Liviu Dudau , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xinwei Hu , Wuyun , linux-arm-kernel@lists.infradead.org, Russell King , linux-arch@vger.kernel.org, arnab.basu@freescale.com, Bharat.Bhushan@freescale.com, x86@kernel.org, Arnd Bergmann , Thomas Gleixner , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-mips@linux-mips.org, Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Sebastian Ott , Tony Luck , linux-ia64@vg List-Id: linux-arch.vger.kernel.org On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga02-in.huawei.com ([119.145.14.65]:27345 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751972AbaI2KNx (ORCPT ); Mon, 29 Sep 2014 06:13:53 -0400 Message-ID: <542930BD.2090907@huawei.com> Date: Mon, 29 Sep 2014 18:13:17 +0800 From: Yijing Wang MIME-Version: 1.0 Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: Lucas Stach Cc: Thierry Reding , Liviu Dudau , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xinwei Hu , Wuyun , linux-arm-kernel@lists.infradead.org, Russell King , linux-arch@vger.kernel.org, arnab.basu@freescale.com, Bharat.Bhushan@freescale.com, x86@kernel.org, Arnd Bergmann , Thomas Gleixner , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-mips@linux-mips.org, Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Sebastian Ott , Tony Luck , linux-ia64@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org, Chris Metcalf , Ralf Baechle , David Vrabel , Sergei Shtylyov , Michael Ellerman , Thomas Petazzoni Message-ID: <20140929101317.mCHg6tTYK0Xm1VYCD05RkW4xW-aCXAcjP6yi7Y9_VWE@z> On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yijing Wang Date: Mon, 29 Sep 2014 10:13:17 +0000 Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms Message-Id: <542930BD.2090907@huawei.com> List-Id: References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Lucas Stach Cc: Thierry Reding , Liviu Dudau , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xinwei Hu , Wuyun , linux-arm-kernel@lists.infradead.org, Russell King , linux-arch@vger.kernel.org, arnab.basu@freescale.com, Bharat.Bhushan@freescale.com, x86@kernel.org, Arnd Bergmann , Thomas Gleixner , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-mips@linux-mips.org, Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Sebastian Ott , Tony Luck , linux-ia64@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org, Chris Metcalf , Ralf Baechle , David Vrabel , Sergei Shtylyov , Michael Ellerman , Thomas Petazzoni On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 29 Sep 2014 12:14:03 +0200 (CEST) Received: from szxga02-in.huawei.com ([119.145.14.65]:3859 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27010064AbaI2KOBpAviO (ORCPT ); Mon, 29 Sep 2014 12:14:01 +0200 Received: from 172.24.2.119 (EHLO szxeml457-hub.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CAC55763; Mon, 29 Sep 2014 18:13:29 +0800 (CST) Received: from [127.0.0.1] (10.177.27.212) by szxeml457-hub.china.huawei.com (10.82.67.200) with Microsoft SMTP Server id 14.3.158.1; Mon, 29 Sep 2014 18:13:20 +0800 Message-ID: <542930BD.2090907@huawei.com> Date: Mon, 29 Sep 2014 18:13:17 +0800 From: Yijing Wang User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 MIME-Version: 1.0 To: Lucas Stach CC: Thierry Reding , Liviu Dudau , Bjorn Helgaas , , , Xinwei Hu , Wuyun , , Russell King , , , , , Arnd Bergmann , Thomas Gleixner , "Konrad Rzeszutek Wilk" , , Joerg Roedel , , , Benjamin Herrenschmidt , , , Sebastian Ott , "Tony Luck" , , "David S. Miller" , , Chris Metcalf , Ralf Baechle , David Vrabel , Sergei Shtylyov , Michael Ellerman , Thomas Petazzoni Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.27.212] X-CFilter-Loop: Reflected Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 42884 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: wangyijing@huawei.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga02-in.huawei.com (unknown [119.145.14.65]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id B8AC11A178A for ; Mon, 29 Sep 2014 20:14:19 +1000 (EST) Message-ID: <542930BD.2090907@huawei.com> Date: Mon, 29 Sep 2014 18:13:17 +0800 From: Yijing Wang MIME-Version: 1.0 To: Lucas Stach Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, linux-pci@vger.kernel.org, Xinwei Hu , Thierry Reding , sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Russell King , Joerg Roedel , x86@kernel.org, Sebastian Ott , Bharat.Bhushan@freescale.com, xen-devel@lists.xenproject.org, arnab.basu@freescale.com, Arnd Bergmann , Konrad Rzeszutek Wilk , Chris Metcalf , Bjorn Helgaas , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Thomas Petazzoni , Liviu Dudau , Tony Luck , Sergei Shtylyov , linux-kernel@vger.kernel.org, Ralf Baechle , iommu@lists.linux-foundation.org, David Vrabel , Wuyun , linuxppc-dev@lists.ozlabs.org, "David S. Miller" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yijing Wang Date: Mon, 29 Sep 2014 10:13:17 +0000 Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms Message-Id: <542930BD.2090907@huawei.com> List-Id: References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Lucas Stach Cc: Thierry Reding , Liviu Dudau , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xinwei Hu , Wuyun , linux-arm-kernel@lists.infradead.org, Russell King , linux-arch@vger.kernel.org, arnab.basu@freescale.com, Bharat.Bhushan@freescale.com, x86@kernel.org, Arnd Bergmann , Thomas Gleixner , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-mips@linux-mips.org, Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Sebastian Ott , Tony Luck , linux-ia64@vg On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing From mboxrd@z Thu Jan 1 00:00:00 1970 From: wangyijing@huawei.com (Yijing Wang) Date: Mon, 29 Sep 2014 18:13:17 +0800 Subject: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms In-Reply-To: <1411979850.2625.7.camel@pengutronix.de> References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com> <20140925074235.GN12423@ulmo> <20140925144855.GB31157@bart.dudau.co.uk> <20140925164937.GB30382@ulmo> <20140925171612.GC31157@bart.dudau.co.uk> <542505B3.7040208@huawei.com> <20140926085430.GG31106@ulmo> <20140926090537.GH31106@ulmo> <54277327.6070500@huawei.com> <5427A6A0.5040703@huawei.com> <1411979850.2625.7.camel@pengutronix.de> Message-ID: <542930BD.2090907@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >>>> [...] >>>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>>>> directly (patch attached). >>>> >>>> Really attached this time. >>>> >>>> Thierry >>>> >>> >>> It looks good to me, so I will update the arm pci hostbridge driver to assign >>> pci root bus the msi chip instead of current pcibios_add_bus(). But for other >>> platforms which only have a one msi chip, I will kept the arch_find_msi_chip() >>> temporarily for more comments, especially from Bjorn. >> >> Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply >> assign msi chip to root bus in all host drivers's scan functions. > > Designware will switch away from pci_scan_root_bus() in the 3.18 cycle > and I would think it would be no problem to to the same with rcar. Good. > > Regards, > Lucas > -- Thanks! Yijing