netdev - Re: [PATCH net v5 0/3] net: libphy: Add phy specific functions to access mmd regs

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Date:	Tue, 29 Jul 2014 14:29:53 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Vince Bridgers <vbridgers2013@...il.com>
Cc:	Randy Dunlap <rdunlap@...radead.org>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>, vbridger <vbridger@...era.com>
Subject: Re: [PATCH net v5 0/3] net: libphy: Add phy specific functions to
 access mmd regs

2014-07-29 13:19 GMT-07:00 Vince Bridgers <vbridgers2013@...il.com>:
> This set of patches addresses a problem found with the Micrel ksz9021 phy and
> libphy, where the ksz9021 phy does not support mmd extended register access
> per the IEEE specification as assumed by libphy. The first patch adds a
> framework for phy specific support to specify their own function to access
> extended phy registers, return a failure code if not supported, or to default
> to libphy's IEEE defined method for accessing the mmd extended phy registers.
>
> This issue was found by using the Synopsys EMAC and a Micrel ksz9021 phy on the
> Altera Cyclone 5 SOC development kit. This patch was tested on the same system
> in both positive and negative test cases.

Thanks for putting this together, this looks good to me now!

>
> ---
> V5: Revert name of mmd register access functions, check for phy specific
>     driver override functions in mmd register access functions per
>     Florian's comments to minimize source code changes
> V4: Correct error when formatting V3 patch - erroneous text cut from code
> V3: Correct formatting of function arguments, remove return statement from
>     NULL functions, and add patch for PHY driver documentation per review
>     comments.
> V2: Split the original patch submission into seperate patches for the libphy
>     framework required for the modification and for the Micrel Phy.
>
> Vince Bridgers (3):
>   net: libphy: Add phy specific function to access mmd phy registers
>   net: libphy: Add stubs to hook IEEE MMD Register reads and writes
>   Documentation: networking: phy.txt: Update text for indirect MMD
>     access
>
>  Documentation/networking/phy.txt |   18 ++++++++++-
>  drivers/net/phy/micrel.c         |   22 ++++++++++++++
>  drivers/net/phy/phy.c            |   61 ++++++++++++++++++++++++--------------
>  include/linux/phy.h              |   18 +++++++++++
>  4 files changed, 95 insertions(+), 24 deletions(-)
>
> --
> 1.7.9.5
>



-- 
Florian
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