From: "Dan Williams" <dan.j.williams@intel.com>
To: "Zhang Wei-r63237" <Wei.Zhang@freescale.com>
Cc: "Wood Scott-B07421" <scottwood@freescale.com>,
paulus@samba.org, shannon.nelson@intel.com,
linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/5] Add DMA engine driver for Freescale MPC85xxprocessors.
Date: Thu, 13 Sep 2007 09:25:57 -0700 [thread overview]
Message-ID: <e9c3a7c20709130925s2234d652ne43bf44e204ac4e8@mail.gmail.com> (raw)
In-Reply-To: <46B96294322F7D458F9648B60E15112C85D8A5@zch01exm26.fsl.freescale.net>
On 9/13/07, Zhang Wei-r63237 <Wei.Zhang@freescale.com> wrote:
> Hi,
>
> > > +static void fsl_dma_set_src(dma_addr_t addr,
> > > + struct dma_async_tx_descriptor
> > *tx, int index)
> > > +{
> >
> > What is index supposed to mean? It's not used, or documented
> > anywhere than
> > I can see.
>
> I've also got more document here. Hi, Dan, could you give me some
> explanation about this API? :)
>
The index field gets used for multi-source (or multi-dest) operations.
XOR, for example, is a multi-source operation. I am preparing a
documentation patch.
[..]
--
Dan
prev parent reply other threads:[~2007-09-13 16:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-07 10:54 [PATCH 5/5] Add DMA engine driver for Freescale MPC85xx processors Zhang Wei
2007-09-07 15:58 ` Randy Dunlap
2007-09-11 10:06 ` Zhang Wei-r63237
2007-09-11 14:20 ` Randy Dunlap
2007-09-07 16:00 ` Nelson, Shannon
2007-09-11 10:10 ` Zhang Wei-r63237
2007-09-11 14:20 ` Scott Wood
2007-09-11 15:15 ` Nelson, Shannon
2007-09-09 17:53 ` Dan Williams
2007-09-09 21:48 ` Timur Tabi
2007-09-09 22:10 ` Dan Williams
2007-09-11 10:30 ` Zhang Wei-r63237
2007-09-13 17:17 ` Dan Williams
[not found] ` <20070907223553.GA18599@freescale.com>
2007-09-13 10:13 ` [PATCH 5/5] Add DMA engine driver for Freescale MPC85xxprocessors Zhang Wei-r63237
2007-09-13 14:49 ` Scott Wood
2007-09-13 16:25 ` Dan Williams [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e9c3a7c20709130925s2234d652ne43bf44e204ac4e8@mail.gmail.com \
--to=dan.j.williams@intel.com \
--cc=Wei.Zhang@freescale.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=paulus@samba.org \
--cc=scottwood@freescale.com \
--cc=shannon.nelson@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®