From: "H. Peter Anvin" <hpa@zytor.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: monstr@monstr.eu, Pavel Machek <pavel@denx.de>,
Michal Simek <michal.simek@xilinx.com>,
linux-kernel@vger.kernel.org, Alan Tull <atull@altera.com>,
Dinh Nguyen <dinguyen@altera.com>,
Philip Balister <philip@balister.org>,
Alessandro Rubini <rubini@gnudd.com>,
Steffen Trumtrar <s.trumtrar@pengutronix.de>,
Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
Jason Cooper <jason@lakedaemon.net>,
Yves Vandervennet <rocket.yvanderv@gmail.com>,
Kyle Teske <kyle.teske@ni.com>,
Josh Cartwright <joshc@eso.teric.us>,
Nicolas Pitre <nico@linaro.org>,
Mark Langsdorf <mark.langsdorf@calxeda.com>,
Felipe Balbi <balbi@ti.com>,
linux-doc@vger.kernel.org,
Mauro Carvalho Chehab <m.chehab@samsung.com>,
David Brown <davidb@codeaurora.org>,
Rob Landley <rob@landley.net>,
"David S. Miller" <davem@davemloft.net>,
Joe Perches <joe@perches.com>,
Cesar Eduardo Barros <cesarb@cesarb.net>,
Samuel Ortiz <sameo@linux.intel.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC PATCH v2 0/1] FPGA subsystem core
Date: Fri, 04 Oct 2013 16:50:26 -0700 [thread overview]
Message-ID: <524F5442.20402@zytor.com> (raw)
In-Reply-To: <20131004233341.GA4028@kroah.com>
On 10/04/2013 04:33 PM, Greg Kroah-Hartman wrote:
>
> Ideally I thought this would be just like "firmware", you dump the file
> to the FPGA, it validates it and away you go with a new image running in
> the chip.
>
> But, it sounds like this is much more complicated, so much so that
> configfs might be the correct interface for it, as you can do lots of
> things there, and it is very flexible (some say too flexible...)
>
> A char device, with a zillion different custom ioctls is also a way to
> do it, but one that I really want to avoid as that gets messy really
> quickly.
>
I'm not sure that a zillion custom ioctls are necessary, but I think we
really need to get a better understanding of the various usage cases
(and there are going to be ones where an "FPGA driver" simply makes no
sense at all.)
-hpa
next prev parent reply other threads:[~2013-10-04 23:52 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-02 15:35 [RFC PATCH v2 0/1] FPGA subsystem core Michal Simek
2013-10-02 15:35 ` [RFC PATCH v2] fpga: Introduce new fpga subsystem Michal Simek
2013-10-02 16:06 ` Joe Perches
2013-10-04 16:15 ` Michal Simek
2013-10-04 16:26 ` Greg Kroah-Hartman
2013-10-02 17:46 ` Jason Gunthorpe
2013-10-04 16:28 ` Michal Simek
2013-10-04 17:05 ` Jason Gunthorpe
2013-10-04 18:50 ` Alan Tull
2013-10-02 19:00 ` [RFC PATCH v2 0/1] FPGA subsystem core H. Peter Anvin
2013-10-03 6:49 ` Pavel Machek
2013-10-04 13:57 ` Michal Simek
2013-10-04 14:16 ` Greg Kroah-Hartman
2013-10-04 14:21 ` H. Peter Anvin
2013-10-04 14:28 ` Michal Simek
2013-10-04 16:46 ` H. Peter Anvin
2013-10-04 17:44 ` Michal Simek
2013-10-04 18:12 ` H. Peter Anvin
2013-10-04 23:33 ` Greg Kroah-Hartman
2013-10-04 23:49 ` Jason Gunthorpe
2013-10-05 4:00 ` H. Peter Anvin
2013-10-05 5:10 ` Jason Gunthorpe
2013-10-05 5:34 ` H. Peter Anvin
2013-10-05 6:53 ` Michal Simek
[not found] ` <c59c68b8-2565-45c5-bfe9-574b76f3f9bc@email.android.com>
2013-10-07 13:11 ` Michal Simek
2013-10-07 14:55 ` H. Peter Anvin
2013-10-07 15:03 ` Michal Simek
2013-10-07 15:07 ` H. Peter Anvin
2013-10-08 13:00 ` Michal Simek
2013-10-08 16:49 ` Alan Tull
2013-10-08 21:42 ` Greg Kroah-Hartman
[not found] ` <CANk1AXS9fpypVVWgvvUCZjKXDvLPpB7=kCNucwFcktgBHmV37w@mail.gmail.com>
[not found] ` <20131009014027.GA17066@kroah.com>
[not found] ` <5254EC8A.8060609@monstr.eu>
[not found] ` <20131009055332.GA4510@kroah.com>
[not found] ` <52550638.2080301@monstr.eu>
[not found] ` <52556585.3050603@zytor.com>
[not found] ` <20131009192439.GC18611@kroah.com>
[not found] ` <5255BE71.8010801@zytor.com>
2013-10-09 21:07 ` Jason Gunthorpe
2013-10-09 22:21 ` H. Peter Anvin
2013-10-05 17:33 ` Jason Gunthorpe
2013-10-05 6:56 ` Michal Simek
2013-10-04 23:50 ` H. Peter Anvin [this message]
2013-10-05 6:49 ` Michal Simek
2013-10-08 17:00 ` Alan Tull
2013-10-08 21:44 ` Greg Kroah-Hartman
2013-10-08 23:47 ` delicious quinoa
2013-10-09 1:41 ` Greg Kroah-Hartman
2013-10-04 18:26 ` Alan Tull
2013-10-03 21:46 ` Alan Tull
2013-10-04 15:27 ` Michal Simek
2013-10-04 18:30 ` Alan Tull
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