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Message-ID: <6bf05528-0d82-4b7b-b584-5c1d32b25ea0@broadcom.com>
Date:   Thu, 26 Oct 2023 16:32:52 -0700
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Subject: Re: [PATCH net-next v2 3/5] net: phy: Add pluming for
 ethtool_{get,set}_rxnfc
To:     Jacob Keller <jacob.e.keller@intel.com>, netdev@vger.kernel.org
Cc:     Doug Berger <opendmb@gmail.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@broadcom.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>, Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Vladimir Oltean <vladimir.oltean@nxp.com>,
        Tariq Toukan <tariqt@nvidia.com>,
        Gal Pressman <gal@nvidia.com>,
        Willem de Bruijn <willemb@google.com>,
        Daniil Tatianin <d-tatianin@yandex-team.ru>,
        Simon Horman <horms@kernel.org>,
        Justin Chen <justin.chen@broadcom.com>,
        Ratheesh Kannoth <rkannoth@marvell.com>,
        Joe Damato <jdamato@fastly.com>,
        Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
        Jiri Pirko <jiri@resnulli.us>,
        open list <linux-kernel@vger.kernel.org>
References: <20231026224509.112353-1-florian.fainelli@broadcom.com>
 <20231026224509.112353-4-florian.fainelli@broadcom.com>
 <0e64566f-6dfe-49a7-aeac-21ed9e66bd75@intel.com>
From:   Florian Fainelli <florian.fainelli@broadcom.com>
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In-Reply-To: <0e64566f-6dfe-49a7-aeac-21ed9e66bd75@intel.com>
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Content-Language: en-US
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On 10/26/23 16:20, Jacob Keller wrote:
> 
> 
> On 10/26/2023 3:45 PM, Florian Fainelli wrote:
>> +EXPORT_SYMBOL(phy_ethtool_set_rxnfc);
>> diff --git a/include/linux/phy.h b/include/linux/phy.h
>> index 3cc52826f18e..03e7c6352aef 100644
>> --- a/include/linux/phy.h
>> +++ b/include/linux/phy.h
>> @@ -1077,6 +1077,10 @@ struct phy_driver {
>>   	int (*get_sqi)(struct phy_device *dev);
>>   	/** @get_sqi_max: Get the maximum signal quality indication */
>>   	int (*get_sqi_max)(struct phy_device *dev);
>> +	/* Used for WAKE_FILTER programming only */
> 
> Any particular reason this comment is required? I don't see it enforced
> above so I'm curious.

The comment is not required, though I put it in there to help readers 
understand that this is purely for use by Wake-on-LAN, since unlike a 
MACs, PHYs are not capable of redirecting certain flows to certain 
queues, too low in the packet processing that there is not a notion of a 
queue at that point (FIFO yes, but not queue as in what the networking 
stack wants to use).
-- 
Florian


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