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Date:   Wed, 23 Nov 2016 10:24:47 -0500
From:   "John W. Linville" <linville@...driver.com>
To:     "Allan W. Nielsen" <allan.nielsen@...rosemi.com>
Cc:     netdev@...r.kernel.org, andrew@...n.ch, f.fainelli@...il.com,
        raju.lakkaraju@...rosemi.com
Subject: Re: [PATCH ethtool v4 1/2] ethtool-copy.h:sync with net

It looks like this patch somehow misses the following commit:

commit 85a624403c77c3f074931aefdfced59f61b668cb
Author: Jesse Brandeburg <jesse.brandeburg@...el.com>
Date:   Thu Oct 13 16:13:55 2016 -0700

    ethtool: silence warning on bit loss
    
    Sparse was complaining when we went to prototype some code
    using ethtool_cmd_speed_set and SPEED_100000, which uses
    the upper 16 bits of __u32 speed for the first time.
    
    CHECK
    ...
    .../uapi/linux/ethtool.h:123:28: warning:
      cast truncates bits from constant value (186a0 becomes 86a0)
    
    The warning is actually bogus, as no bits are really lost, but
    we can get rid of the sparse warning with this one small change.
    
    Reported-by: Preethi Banala <preethi.banala@...el.com>
    Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
    Signed-off-by: David S. Miller <davem@...emloft.net>

Plus, the referenced commit does not seem to exist in the net-next tree.

Please resubmit with the complete history and correct commit IDs -- thanks!

John

On Tue, Nov 22, 2016 at 09:32:16PM +0100, Allan W. Nielsen wrote:
> From: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
> 
> This covers kernel changes upto:
> 
> commit f5a4732f85613b3fb43f8bc33a017e3db3b3605a
> Author: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
> Date:   Wed Nov 9 16:33:09 2016 +0530
> 
>     ethtool: (uapi) Add ETHTOOL_PHY_DOWNSHIFT to PHY tunables
> 
>     For operation in cabling environments that are incompatible with
>     1000BASE-T, PHY device may provide an automatic link speed downshift
>     operation. When enabled, the device automatically changes its 1000BASE-T
>     auto-negotiation to the next slower speed after a configured number of
>     failed attempts at 1000BASE-T.  This feature is useful in setting up in
>     networks using older cable installations that include only pairs A and B,
>     and not pairs C and D.
> 
>     Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
>     Signed-off-by: Allan W. Nielsen <allan.nielsen@...rosemi.com>
> 
> Signed-off-by: Allan W. Nielsen <allan.nielsen@...rosemi.com>
> Acked-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  ethtool-copy.h | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/ethtool-copy.h b/ethtool-copy.h
> index 70748f5..2e2448f 100644
> --- a/ethtool-copy.h
> +++ b/ethtool-copy.h
> @@ -247,6 +247,19 @@ struct ethtool_tunable {
>  	void	*data[0];
>  };
>  
> +#define DOWNSHIFT_DEV_DEFAULT_COUNT	0xff
> +#define DOWNSHIFT_DEV_DISABLE		0
> +
> +enum phy_tunable_id {
> +	ETHTOOL_PHY_ID_UNSPEC,
> +	ETHTOOL_PHY_DOWNSHIFT,
> +	/*
> +	 * Add your fresh new phy tunable attribute above and remember to update
> +	 * phy_tunable_strings[] in net/core/ethtool.c
> +	 */
> +	__ETHTOOL_PHY_TUNABLE_COUNT,
> +};
> +
>  /**
>   * struct ethtool_regs - hardware register dump
>   * @cmd: Command number = %ETHTOOL_GREGS
> @@ -547,6 +560,7 @@ struct ethtool_pauseparam {
>   * @ETH_SS_FEATURES: Device feature names
>   * @ETH_SS_RSS_HASH_FUNCS: RSS hush function names
>   * @ETH_SS_PHY_STATS: Statistic names, for use with %ETHTOOL_GPHYSTATS
> + * @ETH_SS_PHY_TUNABLES: PHY tunable names
>   */
>  enum ethtool_stringset {
>  	ETH_SS_TEST		= 0,
> @@ -557,6 +571,7 @@ enum ethtool_stringset {
>  	ETH_SS_RSS_HASH_FUNCS,
>  	ETH_SS_TUNABLES,
>  	ETH_SS_PHY_STATS,
> +	ETH_SS_PHY_TUNABLES,
>  };
>  
>  /**
> @@ -1312,7 +1327,8 @@ struct ethtool_per_queue_op {
>  
>  #define ETHTOOL_GLINKSETTINGS	0x0000004c /* Get ethtool_link_settings */
>  #define ETHTOOL_SLINKSETTINGS	0x0000004d /* Set ethtool_link_settings */
> -
> +#define ETHTOOL_PHY_GTUNABLE	0x0000004e /* Get PHY tunable configuration */
> +#define ETHTOOL_PHY_STUNABLE	0x0000004f /* Set PHY tunable configuration */
>  
>  /* compatibility with older code */
>  #define SPARC_ETH_GSET		ETHTOOL_GSET
> -- 
> 2.7.3
> 
> 

-- 
John W. Linville		Someday the world will need a hero, and you
linville@...driver.com			might be all we have.  Be ready.

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