linux-kernel - Re: [PATCH v2 2/2] New driver: Xillybus generic interface for FPGA (programmable logic)

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Date:	Fri, 30 Nov 2012 07:09:44 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Eli Billauer <eli.billauer@...il.com>
Cc:	linux-kernel@...r.kernel.org, arnd@...db.de
Subject: Re: [PATCH v2 2/2] New driver: Xillybus generic interface for FPGA
 (programmable logic)

On Fri, Nov 30, 2012 at 04:51:52PM +0200, Eli Billauer wrote:
> Xillybus is a general-purpose framework for communication between programmable
> logic (FPGA) and a host. It provides a simple connection between hardware FIFOs
> in the FPGA and their respective device files on the host.
> 
> The user interface is device files that are used like pipe files, only there's
> FPGA logic on the other side rather than another process.
> 
> The underlying transport between the host and FPGA is either PCIe or AXI
> (AMBA bus by ARM).
> 
> The Xillybus logic (IP core) is configurable in the number of pipes it presents
> and their nature. The driver autodetects these pipes, making it essentially
> forward-compatible to future configurations. The benefit of having this driver
> enabled in the kernel is that hardware vendors may release a new card, knowing
> that it will work out of the box on any future Linux machine, with the specific
> configuration defined for the FPGA part.
> 
> Documentation: http://xillybus.com/doc/
> 
> This driver has been available for download for over a year, and has been
> actively used on a wide variety of kernels versions and configurations.

You didn't answer my previous comments about the kernel/user interface
here, why not?

And you ignored my other review comments, which is a sure way for me to
want to reject this and not look at any future submissions from you for
at least a month...

greg k-h
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