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From: Jassi Brar <jaswinder.singh@linaro.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: linux-kernel@vger.kernel.org, "Bounine,
	Alexandre" <Alexandre.Bounine@idt.com>,
	Dan <dan.j.williams@intel.com>,
	linuxppc-dev@lists.ozlabs.org, akpm@linux-foundation.org
Subject: Re: [RFC PATCH 1/2] RapidIO: Add DMA Engine support for RIO data transfers
Date: Mon, 17 Oct 2011 21:22:53 +0530	[thread overview]
Message-ID: <CAJe_ZhdjMTsqSTDwV_zaAQKmCbjOtRVc951wxqKScaCR-DBG9Q@mail.gmail.com> (raw)
In-Reply-To: <1318700142.23438.45.camel@vkoul-udesk3>

On 15 October 2011 23:05, Vinod Koul <vinod.koul@intel.com> wrote:

> Another alternate approach could be to add one more argument to
> prep_slave_sg API which allows us to pass additional runtime specific
> parameters. This can be NULL and unused for existing drivers and used in
> RIO and any future subsystems which want to use dmaengine.
> Thoughts...?
>
That doesn't sound much different than passing the data via
dma_chan.private during prep_slave_sg. Only now we add to
the number of arguments.
And then either this argument would be RapidIO specific (unfair
to other users) or generic. In latter case what would it look like ?

  parent reply	other threads:[~2011-10-17 15:52 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-30 21:38 [RFC PATCH 1/2] RapidIO: Add DMA Engine support for RIO data transfers Alexandre Bounine
2011-09-30 21:38 ` [RFC PATCH 2/2 -mm] RapidIO: TSI721 Add DMA Engine support Alexandre Bounine
2011-09-30 22:15   ` Andrew Morton
2011-10-03 17:53     ` Bounine, Alexandre
2011-10-04 21:43       ` Andrew Morton
2011-10-05  1:38         ` Bounine, Alexandre
2011-10-05  1:57           ` Andrew Morton
2011-10-05  2:57             ` Bounine, Alexandre
2011-10-01 18:06   ` Vinod Koul
2011-10-01 18:01 ` [RFC PATCH 1/2] RapidIO: Add DMA Engine support for RIO data transfers Vinod Koul
2011-10-03 16:52   ` Bounine, Alexandre
2011-10-05 20:38     ` Williams, Dan J
2011-10-07 16:12       ` Bounine, Alexandre
2011-10-07  5:27     ` Vinod Koul
2011-10-07 19:08       ` Bounine, Alexandre
2011-10-15 17:35         ` Vinod Koul
2011-10-17 14:33           ` Bounine, Alexandre
2011-10-17 15:52           ` Jassi Brar [this message]
2011-10-17 17:01             ` Vinod Koul
2011-10-17 19:39               ` Bounine, Alexandre
2011-10-17 18:16             ` Bounine, Alexandre

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