From: Vinod Koul <vinod.koul@intel.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Youquan Song <youquan.song@intel.com>,
dan.j.williams@intel.com, andriy.shevchenko@intel.com,
mika.westerberg@intel.com, linux-kernel@vger.kernel.org,
Youquan Song <youquan.song@linux.jf.intel.com>
Subject: Re: [PATCH 1/2] dma: Add interface to calculate data transferred
Date: Sun, 13 Oct 2013 20:56:33 +0530 [thread overview]
Message-ID: <20131013152633.GM2954@intel.com> (raw)
In-Reply-To: <20131011133343.GB32689@kroah.com>
On Fri, Oct 11, 2013 at 06:33:43AM -0700, Greg KH wrote:
> On Fri, Oct 11, 2013 at 05:42:17PM -0400, Youquan Song wrote:
> > Currently, the DMA channel calculates its data transferred only at network
> > device driver. When other devices like UART or SPI etc, transfers data by DMA
> > mode, but it always shows 0 at /sys/class/dma/dma0chan*/bytes_transferred.
>
> Is that really a problem? I have never heard anyone complaining about
> it. Where are the reports of this?
Right, am not still getting the point on what is the problem that this series is
trying to fix..
~Vinod
next prev parent reply other threads:[~2013-10-13 16:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 21:42 DMA: Calculate how many data transferred by DMA Youquan Song
2013-10-11 21:42 ` [PATCH 1/2] dma: Add interface to calculate data transferred Youquan Song
2013-10-11 10:22 ` Shevchenko, Andriy
2013-10-11 13:33 ` Greg KH
2013-10-13 15:26 ` Vinod Koul [this message]
2013-10-15 18:31 ` Youquan Song
2013-10-15 15:30 ` Greg KH
2013-10-15 15:55 ` Dan Williams
2013-10-15 16:17 ` Greg KH
2013-10-16 5:38 ` Vinod Koul
2013-10-16 8:36 ` Shevchenko, Andriy
2013-10-16 7:57 ` Vinod Koul
2013-10-16 9:13 ` Shevchenko, Andriy
2013-10-16 14:12 ` Greg KH
2013-10-16 15:07 ` Vinod Koul
2013-10-16 18:17 ` Dan Williams
2013-10-11 21:42 ` [PATCH 2/2] dma: calculate the data tranferred by 8250 Youquan Song
2013-10-11 13:32 ` Greg KH
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