linux-kernel - Re: [PATCH 3/3] Intel IXP4xx network drivers

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Message-Id: <5BB7E1AB-5CE1-43C8-8CE3-E0DE0236BD09@cam.ac.uk>
Date:	Mon, 7 May 2007 13:59:26 +0100
From:	Michael-Luke Jones <mlj28@....ac.uk>
To:	Krzysztof Halasa <khc@...waw.pl>
Cc:	Jeff Garzik <jeff@...zik.org>, Russell King <rmk@....linux.org.uk>,
	lkml <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject: Re: [PATCH 3/3] Intel IXP4xx network drivers

On 7 May 2007, at 01:07, Krzysztof Halasa wrote:

> Adds IXP4xx drivers for built-in CPU components:
> - hardware queue manager
> - NPE (network coprocessors),
> - Ethernet ports,
> - HSS (sync serial) ports (currently only non-channelized HDLC).
>
> Both Ethernet and HSS drivers use queue manager and NPE driver and
> require external firmware file(s) available from www.intel.com.
>
> "Platform device" definitions for Ethernet ports on IXDP425  
> development
> platform are provided (though it has been tested on not yet available
> IXP425-based hardware only)
>
> Signed-off-by: Krzysztof Halasa <khc@...waw.pl>

Immediate comments as follows:

(Krzysztof has already seen them in a private email but I'm putting  
them out so people can publically disagree with me if I have got this  
wrong.)

Code placement:
Queue Manager & NPE code => arch/arm/mach-ixp4xx
WAN driver code => drivers/net/wan
Eth code => drivers/net/arm

Kconfig:
I'm not convinced about 'config IXP4XX_NETDEVICES'. I'd lose it  
together with the drivers/net/ixp4xx directory
Ethernet & HSS code should probably select NPE and QMGR (rather than  
depend) but these options should still be exposed in arch/arm/mach- 
ixp4xx/Kconfig

Michael-Luke Jones

PS: Please cc me on replies as I only subscribe to l-a-k.
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