From: Pierre Ossman <drzeus-list@drzeus.cx>
To: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org,
kernel@avr32linux.org, shannon.nelson@intel.com,
David Brownell <david-b@pacbell.net>
Subject: Re: [PATCH v4 6/6] Atmel MCI: Driver for Atmel on-chip MMC controllers
Date: Sat, 28 Jun 2008 16:11:27 +0200 [thread overview]
Message-ID: <20080628161127.16b6fcff@mjolnir.drzeus.cx> (raw)
In-Reply-To: <20080628160121.10c7c1b0@hskinnemo-gx745.norway.atmel.com>
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On Sat, 28 Jun 2008 16:01:21 +0200
Haavard Skinnemoen <haavard.skinnemoen@atmel.com> wrote:
>
> bytes_xfered is 0 if any block failed. If I understand correctly, this
> is good enough, but not optimal. I want to improve this later, but I
> might need some more feedback from the DMA engine subsystem (e.g.
> adding "actual" and "status" fields to the descriptor.)
>
That's good enough yes. The only incorrect value is reporting more than
was actually written as that would completely undermine any attempts of
keeping data integrity in upper layers.
Rgds
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
rdesktop, core developer http://www.rdesktop.org
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next prev parent reply other threads:[~2008-06-28 14:11 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-26 13:23 [PATCH v4 0/6] dmaengine/mmc: DMA slave interface and two new drivers Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 1/6] dmaengine: Add dma_client parameter to device_alloc_chan_resources Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 2/6] dmaengine: Add dma_chan_is_in_use() function Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 3/6] dmaengine: Add slave DMA interface Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 4/6] dmaengine: Make DMA Engine menu visible for AVR32 users Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 5/6] dmaengine: Driver for the Synopsys DesignWare DMA controller Haavard Skinnemoen
2008-06-26 13:23 ` [PATCH v4 6/6] Atmel MCI: Driver for Atmel on-chip MMC controllers Haavard Skinnemoen
2008-06-27 19:10 ` Haavard Skinnemoen
2008-06-27 19:56 ` Pierre Ossman
2008-06-28 12:43 ` Haavard Skinnemoen
2008-06-28 13:31 ` Haavard Skinnemoen
2008-06-29 16:49 ` Pierre Ossman
2008-06-28 13:45 ` Pierre Ossman
2008-06-28 14:01 ` Haavard Skinnemoen
2008-06-28 14:11 ` Pierre Ossman [this message]
2008-06-27 21:31 ` Dan Williams
2008-06-28 12:47 ` Haavard Skinnemoen
2008-07-04 0:40 ` dmaengine skip unmap (was: Re: [PATCH v4 5/6] dmaengine: Driver for the Synopsys DesignWare DMA controller) Dan Williams
2008-07-04 14:47 ` Haavard Skinnemoen
2008-06-26 14:15 ` [PATCH v4 4/6] dmaengine: Make DMA Engine menu visible for AVR32 users Adrian Bunk
2008-06-26 14:46 ` Haavard Skinnemoen
2008-06-27 0:59 ` Dan Williams
2008-06-27 16:37 ` David Brownell
2008-06-27 17:44 ` Adrian Bunk
2008-06-27 18:24 ` David Brownell
2008-06-27 18:29 ` Adrian Bunk
2008-06-27 18:31 ` Dan Williams
2008-06-27 18:13 ` Haavard Skinnemoen
2008-06-26 20:04 ` David Brownell
2008-06-26 13:32 ` [PATCH v4 3/6] dmaengine: Add slave DMA interface Haavard Skinnemoen
2008-06-28 12:29 ` Haavard Skinnemoen
2008-07-02 1:31 ` [PATCH v4 2/6] dmaengine: Add dma_chan_is_in_use() function Dan Williams
2008-07-02 2:00 ` Dan Williams
2008-07-02 7:59 ` Haavard Skinnemoen
2008-07-02 7:56 ` Haavard Skinnemoen
2008-07-04 1:06 ` [PATCH v4 0/6] dmaengine/mmc: DMA slave interface and two new drivers Dan Williams
2008-07-04 15:13 ` Haavard Skinnemoen
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