linux-kernel - Re: [PATCH] dmatest: masking tests for channel capabilities

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Date:	Tue, 18 Jun 2013 10:34:07 -0700
From:	Jubin Mehta <jubin.mehta@...el.com>
To:	Dan Williams <djbw@...com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Dave Jiang <dave.jiang@...el.com>,
	Jon Mason <jon.mason@...el.com>
Subject: Re: [PATCH] dmatest: masking tests for channel capabilities

On Mon, Jun 17, 2013 at 02:12:51PM -0700, Dan Williams wrote:
> [ apologies for the resend, gmail defaulted to html ]
> 
> On Mon, Jun 17, 2013 at 2:10 PM, Dan Williams <djbw@...com> wrote:
> >> +Example to perform only MEMCPY and PQ mode tests (0x01 | 0x04 = 0x05):
> >> +
> >> +        % modprobe dmatest
> >> +        % echo dma0chan0 > /sys/kernel/debug/dmatest/channel
> >> +        % echo 5  > /sys/kernel/debug/dmatest/cap_mask
> >> +        % echo 1 > /sys/kernel/debug/dmatest/iterations
> >> +        % echo 1 > /sys/kernel/debug/dmatest/run
> >
> >
> > Hmmm, I should have paid more attention when the debugfs support was
> > initially proposed for dmatest.  As it is I see duplication and
> > configuration parameters getting out of sync with their module parameter
> > equivalents versus just having all configuration go through module
> > parameters.  module_param_call() can be used for the more complex options.
> > Debugfs at this point looks like overkill for what amounts to some simple
> > configuration variables and a result line.
> >
> > --
> > Dan
> 
Would you like to have some changes regarding the configuration
process for the module parameters of the dmatest?

Any other comments with respect to the patch?
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