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Date:   Fri, 23 Jun 2023 13:57:05 +0800
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Subject: Re: [PATCH net-next 3/6] net: phy: update in-band AN mode when
 changing interface by PHY driver
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To:     Simon Horman <simon.horman@corigine.com>
Cc:     Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>,
        David E Box <david.e.box@intel.com>,
        Hans de Goede <hdegoede@redhat.com>,
        Mark Gross <markgross@kernel.org>,
        Jose Abreu <Jose.Abreu@synopsys.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        "David S . Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        =?UTF-8?Q?Marek_Beh=c3=ban?= <kabel@kernel.org>,
        Jean Delvare <jdelvare@suse.com>,
        Guenter Roeck <linux@roeck-us.net>,
        Giuseppe Cavallaro <peppe.cavallaro@st.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Jose Abreu <joabreu@synopsys.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Richard Cochran <richardcochran@gmail.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Jesper Dangaard Brouer <hawk@kernel.org>,
        John Fastabend <john.fastabend@gmail.com>,
        Wong Vee Khee <veekhee@apple.com>,
        Jon Hunter <jonathanh@nvidia.com>,
        Jesse Brandeburg <jesse.brandeburg@intel.com>,
        Revanth Kumar Uppala <ruppala@nvidia.com>,
        Shenwei Wang <shenwei.wang@nxp.com>,
        Andrey Konovalov <andrey.konovalov@linaro.org>,
        Jochen Henneberg <jh@henneberg-systemdesign.com>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org,
        platform-driver-x86@vger.kernel.org, linux-hwmon@vger.kernel.org,
        bpf@vger.kernel.org, Voon Wei Feng <weifeng.voon@intel.com>,
        Tee Min <tee.min.tan@linux.intel.com>,
        Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>,
        Lai Peter Jun Ann <jun.ann.lai@intel.com>
References: <20230622041905.629430-1-yong.liang.choong@linux.intel.com>
 <20230622041905.629430-4-yong.liang.choong@linux.intel.com>
 <ZJReJ2yxqKGQx1BU@corigine.com>
From:   Choong Yong Liang <yong.liang.choong@linux.intel.com>
In-Reply-To: <ZJReJ2yxqKGQx1BU@corigine.com>
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Hi Simon,

I will update it in v2. Thank you.

On 22/6/2023 10:43 pm, Simon Horman wrote:
> On Thu, Jun 22, 2023 at 12:19:02PM +0800, Choong Yong Liang wrote:
>> From: "Tan, Tee Min" <tee.min.tan@linux.intel.com>
>>
>> Add cur_link_an_mode into phy_device struct for PHY drivers to
>> communicate the in-band AN mode setting with phylink framework.
>>
>> As there is a mechanism in PHY drivers to switch the PHY interface
>> between SGMII and 2500BaseX according to link speed. In this case,
>> the in-band AN mode should be switching based on the PHY interface
>> as well, if the PHY interface has been changed/updated by PHY driver.
>>
>> For e.g., disable in-band AN in 2500BaseX mode, or enable in-band AN
>> back for SGMII mode (10/100/1000Mbps).
>>
>> Signed-off-by: Tan, Tee Min <tee.min.tan@linux.intel.com>
>> Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
> 
> ...
> 
>> diff --git a/include/linux/phy.h b/include/linux/phy.h
>> index 11c1e91563d4..c685b526e307 100644
>> --- a/include/linux/phy.h
>> +++ b/include/linux/phy.h
>> @@ -756,6 +756,8 @@ struct phy_device {
>>   	/* MACsec management functions */
>>   	const struct macsec_ops *macsec_ops;
>>   #endif
>> +	/* For communicate the AN mode setting with phylink framework. */
>> +	u8 cur_link_an_mode;
>>   };
> 
> Hi Choong Yong Liang,
> 
> Please consider adding cur_link_an_mode to the kernel doc
> for struct phy_device - which is above the definition of struct phy_device.