netdev - Re: [PATCH 1/3] rtlwifi: make MSI support a module parameter

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Message-ID: <20140507025230.GB3712@adam-laptop>
Date:	Wed, 7 May 2014 10:52:30 +0800
From:	Adam Lee <adam.lee@...onical.com>
To:	"John W. Linville" <linville@...driver.com>
Cc:	Stephen Hemminger <stephen@...workplumber.org>,
	Larry Finger <Larry.Finger@...inger.net>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 1/3] rtlwifi: make MSI support a module parameter

On Wed, May 07, 2014 at 10:31:05AM +0800, Adam Lee wrote:
> On Tue, May 06, 2014 at 02:08:37PM -0400, John W. Linville wrote:
> > > > Standard practice is to assume MSI is available, and let the quirks
> > > > in the PCI subsystem reject the request to enable MSI.
> > > > 
> > > > Also other drivers have a 'disable_msi' module parameter why not follow
> > > > their example.
> > > > 
> > > 
> > > Because some submodule's MSI causes an regression, and other submodules
> > > of rtlwifi are not fully tested under MSI, we need to disable it by
> > > default(regression has higher priority) and have an 'enable_msi' module
> > > parameter for some certain users.
> > 
> > Couldn't it be called 'disable_msi' and default to 'on'?
> 
> It could be, will send an v2 patchset, thanks.

Sorry, just grep linux/driver, there is no convention of 'disable_msi'
parameter, only 5 drivers uses that, but 15 drivers are using 'msi'...

Please still apply v1, setting 'disable_msi' to 'on' and asking users to
set it to 'off' is a little weird. John, please ask me to send v2 if you
think the 'disable_msi' parameter is better.

Thanks.

-- 
Adam Lee
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