linux-kernel - RE: [PATCH V7 00/11] Support for generic ACPI based PCI host controller

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Date:	Wed, 11 May 2016 12:53:25 +0000
From:	Gabriele Paoloni <gabriele.paoloni@...wei.com>
To:	Tomasz Nowicki <tn@...ihalf.com>,
	"helgaas@...nel.org" <helgaas@...nel.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"will.deacon@....com" <will.deacon@....com>,
	"catalin.marinas@....com" <catalin.marinas@....com>,
	"rafael@...nel.org" <rafael@...nel.org>,
	"hanjun.guo@...aro.org" <hanjun.guo@...aro.org>,
	"Lorenzo.Pieralisi@....com" <Lorenzo.Pieralisi@....com>,
	"okaya@...eaurora.org" <okaya@...eaurora.org>,
	"jchandra@...adcom.com" <jchandra@...adcom.com>
CC:	"robert.richter@...iumnetworks.com" 
	<robert.richter@...iumnetworks.com>,
	"mw@...ihalf.com" <mw@...ihalf.com>,
	"Liviu.Dudau@....com" <Liviu.Dudau@....com>,
	"ddaney@...iumnetworks.com" <ddaney@...iumnetworks.com>,
	Wangyijing <wangyijing@...wei.com>,
	"Suravee.Suthikulpanit@....com" <Suravee.Suthikulpanit@....com>,
	"msalter@...hat.com" <msalter@...hat.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	"jcm@...hat.com" <jcm@...hat.com>,
	"andrea.gallo@...aro.org" <andrea.gallo@...aro.org>,
	"dhdang@....com" <dhdang@....com>,
	"jeremy.linton@....com" <jeremy.linton@....com>,
	"liudongdong (C)" <liudongdong3@...wei.com>,
	"cov@...eaurora.org" <cov@...eaurora.org>
Subject: RE: [PATCH V7 00/11] Support for generic ACPI based PCI host
 controller

Hi Tomasz

> -----Original Message-----
> From: Tomasz Nowicki [mailto:tn@...ihalf.com]
> Sent: 11 May 2016 12:08
> To: Gabriele Paoloni; helgaas@...nel.org; arnd@...db.de;
> will.deacon@....com; catalin.marinas@....com; rafael@...nel.org;
> hanjun.guo@...aro.org; Lorenzo.Pieralisi@....com; okaya@...eaurora.org;
> jchandra@...adcom.com
> Cc: robert.richter@...iumnetworks.com; mw@...ihalf.com;
> Liviu.Dudau@....com; ddaney@...iumnetworks.com; Wangyijing;
> Suravee.Suthikulpanit@....com; msalter@...hat.com; linux-
> pci@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> acpi@...r.kernel.org; linux-kernel@...r.kernel.org; linaro-
> acpi@...ts.linaro.org; jcm@...hat.com; andrea.gallo@...aro.org;
> dhdang@....com; jeremy.linton@....com; liudongdong (C);
> cov@...eaurora.org
> Subject: Re: [PATCH V7 00/11] Support for generic ACPI based PCI host
> controller
> 
> Hi Gabriele,
> 
> On 11.05.2016 12:41, Gabriele Paoloni wrote:
> > Hi Tomasz
> >
> >> -----Original Message-----
> >> From: linux-kernel-owner@...r.kernel.org [mailto:linux-kernel-
> >> owner@...r.kernel.org] On Behalf Of Tomasz Nowicki
> >> Sent: 10 May 2016 16:20
> >> To: helgaas@...nel.org; arnd@...db.de; will.deacon@....com;
> >> catalin.marinas@....com; rafael@...nel.org; hanjun.guo@...aro.org;
> >> Lorenzo.Pieralisi@....com; okaya@...eaurora.org;
> jchandra@...adcom.com
> >> Cc: robert.richter@...iumnetworks.com; mw@...ihalf.com;
> >> Liviu.Dudau@....com; ddaney@...iumnetworks.com; Wangyijing;
> >> Suravee.Suthikulpanit@....com; msalter@...hat.com; linux-
> >> pci@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> >> acpi@...r.kernel.org; linux-kernel@...r.kernel.org; linaro-
> >> acpi@...ts.linaro.org; jcm@...hat.com; andrea.gallo@...aro.org;
> >> dhdang@....com; jeremy.linton@....com; liudongdong (C);
> >> cov@...eaurora.org; Tomasz Nowicki
> >> Subject: [PATCH V7 00/11] Support for generic ACPI based PCI host
> >> controller
> >>
> >>  From the functionality point of view this series may be split into
> the
> >> following logic parts:
> >> 1. New ECAM API and update for users of the pci-host-common API
> >> 2. Necessary fixes as the preparation for using driver on ARM64.
> >> 3. Use new MCFG interface and implement generic ACPI based PCI host
> >> controller driver.
> >> 4. Enable above driver on ARM64
> >>
> >> Patches has been built on top of 4.6-rc7 and can be found here:
> >> git@...hub.com:semihalf-nowicki-tomasz/linux.git (pci-acpi-v7)
> >>
> >> This has been tested on Cavium ThunderX server. Any help in
> reviewing
> >> and
> >> testing is very appreciated.
> >>
> >> v6 -> v7
> >> - drop quirks handling
> >
> > Maybe I missed something in the v6 discussion thread; when was it
> > decided to drop quirk handling?
> 
> I had such requests in previous series.
> 
> >
> > I think it is important to have this in place to accommodate
> different
> > vendors. If the intention is to keep this patchset "clean" maybe
> > we can add it as a separate patch on top later on...
> >
> > What's your view?
> 
> Yes, keeping these things separated should help in review. Obviously I
> agree that we need quirk handling but currently there is no
> implementation which we all agree upon. For the test, you can use quirk
> handling approach from the previous series until we sort out final
> solution.

Great

This explains perfectly

We will apply previous series quirks and try to test the patchset
from Huawei side

Many Thanks

Gab

> 
> Thanks,
> Tomasz