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From: "Daniel Krüger" <daniel.krueger@systec-electronic.com>
To: david@lang.hm
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Robert Schwebel <r.schwebel@pengutronix.de>,
	Greg KH <greg@kroah.com>,
	linux-kernel@vger.kernel.org,
	Michael Olbrich <mol@pengutronix.de>,
	Wolfram Sang <wsa@pengutronix.de>,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: The Linux Staging tree, what it is and is not.
Date: Mon, 23 Mar 2009 10:03:23 +0100	[thread overview]
Message-ID: <49C7505B.2010205@systec-electronic.com> (raw)
In-Reply-To: <alpine.DEB.1.10.0903201332130.16753@asgard.lang.hm>

david@lang.hm schrieb:
> On Fri, 20 Mar 2009, Alan Cox wrote:
> 
>>> information of what to copy to where comes from the object dictionary.
>>> But it is possible to extract this information from the objdict and pass
>>> it via generic structures (e.g. something like IO vectors) to the PDO
>>> module in kernel. The information flow of the configuration data is
>>> one-way only, from userspace to kernel. This is what I plan to implement
>>> in openPOWERLINK, because the copy information can also be passed to a
>>> special hardware like a DMA controller.
>>
>> Ok so your hardware in fact really is oriented around an mmap type
>> interface ?
> 
> what I understand from this thread is that the hardware is a standard 
> ethernet card.

It may be a standard Ethernet controller. But it could also be a 
controller with a special hardware acceleration.

cu,
   Daniel

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  reply	other threads:[~2009-03-23  9:04 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-18 18:32 The Linux Staging tree, what it is and is not Greg KH
2009-03-20  0:58 ` Robert Schwebel
2009-03-20  2:48   ` Greg KH
2009-03-20  8:34     ` Daniel Krüger
2009-03-20  8:46       ` Robert Schwebel
2009-03-20 17:25       ` Greg KH
2009-03-20 10:01   ` Alan Cox
2009-03-20 10:35     ` Robert Schwebel
2009-03-20 10:55       ` Alan Cox
2009-03-20 11:15         ` Robert Schwebel
2009-03-20 15:16           ` Daniel Krüger
2009-03-20 15:37             ` Alan Cox
2009-03-20 20:32               ` david
2009-03-23  9:03                 ` Daniel Krüger [this message]
2009-03-23  9:16                   ` Robert Schwebel
2009-03-20  4:26 ` Dave Airlie
2009-03-20  4:46   ` Greg KH
2009-03-20 16:05   ` Lubomir Rintel

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