linux-kernel - Re: [patch 08/16] genirq: Introduce callback irq_chip.irq_write_msi

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Message-ID: <5489091C.7030405@huawei.com>
Date:	Thu, 11 Dec 2014 11:01:48 +0800
From:	"Yun Wu (Abel)" <wuyun.wu@...wei.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	Marc Zyngier <marc.zyngier@....com>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Bjorn Helgaas" <bhelgaas@...gle.com>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	"Yijing Wang" <wangyijing@...wei.com>
Subject: Re: [patch 08/16] genirq: Introduce callback irq_chip.irq_write_msi_msg

On 2014/12/10 18:25, Thomas Gleixner wrote:

> On Wed, 10 Dec 2014, Yun Wu (Abel) wrote:
>> On 2014/11/19 19:11, Thomas Gleixner wrote:
>> I spent last two weeks implementing and testing my original idea about making
>> the sub domains generic, based on stacked domain feature. Now it comes real,
>> please see the attached patch.
> 
> Can you please send patches inline? Attached is a pain to reply to.

Sure, why not.

>  
>> With this patch applied, I think things will get easier.
> 
> I don't see what gets easier. It's just another infrastructure which
> is painfully similar to MSI.

Then please help me feel that pain when I post inline patches, thanks. :)

> 
>> This patch (also with several other patches) is tested on Hisilicon ARM64 SoC,
>> with non PCI devices capable of message based interrupts. The PCI part is not
>> tested because it needs large refactoring work to do. So yes, the testing work
>> is not sufficient, but I think the patch is enough to present what I really
>> wanted to express. :)
> 
> Not really.
> 
> If you provide proper patches which make use of it and most important
> a proper refactoring of the PCI/MSI side then we can discuss that, but
> for now it's just handwaving.
> 

OK, I will start a new thread when I finished PCI/MSI refactoring work.

Thanks,
	Abel

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