linux-kernel - Re: [PATCH v4 1/1] can: add pruss CAN driver.

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Message-Id: <201105121454.47781.arnd@arndb.de>
Date:	Thu, 12 May 2011 14:54:47 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Wolfgang Grandegger <wg@...ndegger.com>
Cc:	Subhasish Ghosh <subhasish@...tralsolutions.com>,
	sachi@...tralsolutions.com,
	davinci-linux-open-source@...ux.davincidsp.com,
	Alan Cox <alan@...rguk.ukuu.org.uk>, Netdev@...r.kernel.org,
	nsekhar@...com, open list <linux-kernel@...r.kernel.org>,
	CAN NETWORK DRIVERS <socketcan-core@...ts.berlios.de>,
	"Marc Kleine-Budde" <mkl@...gutronix.de>, m-watkins@...com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/1] can: add pruss CAN driver.

On Thursday 12 May 2011, Wolfgang Grandegger wrote:
> Well, that seems sophisticated resulting in a complex implementation
> (may code line) also because hardware filters are very hardware
> dependent. Usually just one global filter can be defined. I think that's
> overkill. A simple interface using:
> 
>   ip link set can0 type can filter <id>:<mask> [<id>:<mask> ...]
> 
> would just be fine.

Ok, fair enough. Still I would suggest you first come up with
a reasonable user interface (the one you posted may be just right,
I don't know), and then let someone do the implementation in the
pruss firmware that is the best match for the user interface, rather
than the other way around.

	Arnd
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