netdev - Re: [PATCH 1/3] driver: net: ethernet: cpsw: implement ethtool get/set phy setting

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Message-ID: <8762135on4.fsf@dell.be.48ers.dk>
Date:	Thu, 07 Mar 2013 14:24:15 +0100
From:	Peter Korsgaard <jacmet@...site.dk>
To:	Mugunthan V N <mugunthanvnm@...com>
Cc:	<netdev@...r.kernel.org>, <davem@...emloft.net>,
	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-omap@...r.kernel.org>, <b-cousson@...com>, <paul@...an.com>
Subject: Re: [PATCH 1/3] driver: net: ethernet: cpsw: implement ethtool get/set phy setting

>>>>> "M" == Mugunthan V N <mugunthanvnm@...com> writes:

 M> This patch implements get/set of the phy settings via ethtool apis
 M> Signed-off-by: Mugunthan V N <mugunthanvnm@...com>
 M> ---
 M>  Documentation/devicetree/bindings/net/cpsw.txt |    3 +++
 M>  drivers/net/ethernet/ti/cpsw.c                 |   32 ++++++++++++++++++++++++
 M>  include/linux/platform_data/cpsw.h             |    1 +
 M>  3 files changed, 36 insertions(+)

 M> diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
 M> index ecfdf75..8d61300 100644
 M> --- a/Documentation/devicetree/bindings/net/cpsw.txt
 M> +++ b/Documentation/devicetree/bindings/net/cpsw.txt
 M> @@ -20,6 +20,7 @@ Required properties:
 M>  - cpts_clock_shift	: Denominator to convert input clock ticks into nanoseconds
 M>  - phy_id		: Specifies slave phy id
 M>  - mac-address		: Specifies slave MAC address
 M> +- ethtool-active-slave	: Specifies the slave to use for ethtool command

That again sounds like something Linux specific rather than a hardware
property.

It would be good if all these special things (dual emac mode, vlan
handling, switching) could be handled using the existing kernel
(bridging/vlan) infrastructure, and the driver always just exposing 2
network interfaces instead of these configuration properties.

-- 
Bye, Peter Korsgaard
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