[PATCH 2/4] phylib: Add generic 10G driver

[Shaohui Xie]

Added more people and list.

Best Regards, 
Shaohui Xie


> -----Original Message-----
> From: shh.xie at gmail.com [mailto:shh.xie at gmail.com]
> Sent: Monday, November 11, 2013 7:07 PM
> To: linuxppc-dev at lists.ozlabs.org; linux-kernel at vger.kernel.org
> Cc: Bucur Madalin-Cristian-B32716; Kanetkar Shruti-B44454; Xie Shaohui-B21989
> Subject: [PATCH 2/4] phylib: Add generic 10G driver
> 
> From: Andy Fleming
> 
> Very incomplete, but will allow for binding an ethernet controller to it.
> 
> Also, Add XGMII interface type
> 
> Signed-off-by: Andy Fleming
> Signed-off-by: Shaohui Xie <Shaohui.Xie at freescale.com>
> ---
>  drivers/net/phy/phy_device.c | 101 ++++++++++++++++++++++++++++++++++++++++++-
>  include/linux/phy.h          |   1 +
>  2 files changed, 101 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index
> 74630e9..30bf2d5 100644
> --- a/drivers/net/phy/phy_device.c
> +++ b/drivers/net/phy/phy_device.c
> @@ -32,6 +32,7 @@
>  #include <linux/module.h>
>  #include <linux/mii.h>
>  #include <linux/ethtool.h>
> +#include <linux/mdio.h>
>  #include <linux/phy.h>
> 
>  #include <asm/io.h>
> @@ -689,6 +690,13 @@ static int genphy_config_advert(struct phy_device *phydev)
>  	return changed;
>  }
> 
> +int gen10g_config_advert(struct phy_device *dev) {
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_config_advert);
> +
> +
>  /**
>   * genphy_setup_forced - configures/forces speed/duplex from @phydev
>   * @phydev: target phy_device struct
> @@ -742,6 +750,12 @@ int genphy_restart_aneg(struct phy_device *phydev)  }
> EXPORT_SYMBOL(genphy_restart_aneg);
> 
> +int gen10g_restart_aneg(struct phy_device *phydev) {
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_restart_aneg);
> +
> 
>  /**
>   * genphy_config_aneg - restart auto-negotiation or write BMCR @@ -784,6
> +798,13 @@ int genphy_config_aneg(struct phy_device *phydev)  }
> EXPORT_SYMBOL(genphy_config_aneg);
> 
> +int gen10g_config_aneg(struct phy_device *phydev) {
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_config_aneg);
> +
> +
>  /**
>   * genphy_update_link - update link status in @phydev
>   * @phydev: target phy_device struct
> @@ -913,6 +934,35 @@ int genphy_read_status(struct phy_device *phydev)  }
> EXPORT_SYMBOL(genphy_read_status);
> 
> +int gen10g_read_status(struct phy_device *phydev) {
> +	int devad, reg;
> +	u32 mmd_mask = phydev->c45_ids.devices_in_package;
> +
> +	phydev->link = 1;
> +
> +	/* For now just lie and say it's 10G all the time */
> +	phydev->speed = 10000;
> +	phydev->duplex = DUPLEX_FULL;
> +
> +	for (devad = 0; mmd_mask; devad++, mmd_mask = mmd_mask >> 1) {
> +		if (!(mmd_mask & 1))
> +			continue;
> +
> +		/* Read twice because link state is latched and a
> +		 * read moves the current state into the register
> +		 */
> +		phy_read_mmd(phydev, devad, MDIO_STAT1);
> +		reg = phy_read_mmd(phydev, devad, MDIO_STAT1);
> +		if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
> +			phydev->link = 0;
> +	}
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_read_status);
> +
> +
>  static int genphy_config_init(struct phy_device *phydev)  {
>  	int val;
> @@ -959,6 +1009,15 @@ static int genphy_config_init(struct phy_device *phydev)
> 
>  	return 0;
>  }
> +
> +static int gen10g_config_init(struct phy_device *phydev) {
> +	/* Temporarily just say we support everything */
> +	phydev->supported = phydev->advertising = SUPPORTED_10000baseT_Full;
> +
> +	return 0;
> +}
> +
>  int genphy_suspend(struct phy_device *phydev)  {
>  	int value;
> @@ -974,6 +1033,13 @@ int genphy_suspend(struct phy_device *phydev)  }
> EXPORT_SYMBOL(genphy_suspend);
> 
> +int gen10g_suspend(struct phy_device *phydev) {
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_suspend);
> +
> +
>  int genphy_resume(struct phy_device *phydev)  {
>  	int value;
> @@ -989,6 +1055,13 @@ int genphy_resume(struct phy_device *phydev)  }
> EXPORT_SYMBOL(genphy_resume);
> 
> +int gen10g_resume(struct phy_device *phydev) {
> +	return 0;
> +}
> +EXPORT_SYMBOL(gen10g_resume);
> +
> +
>  /**
>   * phy_probe - probe and init a PHY device
>   * @dev: device to probe and init
> @@ -1129,6 +1202,20 @@ static struct phy_driver genphy_driver = {
>  	.driver		= {.owner= THIS_MODULE, },
>  };
> 
> +static struct phy_driver gen10g_driver = {
> +	.phy_id         = 0xffffffff,
> +	.phy_id_mask    = 0xffffffff,
> +	.name           = "Generic 10G PHY",
> +	.config_init    = gen10g_config_init,
> +	.features       = 0,
> +	.config_aneg    = gen10g_config_aneg,
> +	.read_status    = gen10g_read_status,
> +	.suspend        = gen10g_suspend,
> +	.resume         = gen10g_resume,
> +	.driver         = {.owner = THIS_MODULE, },
> +};
> +
> +
>  static int __init phy_init(void)
>  {
>  	int rc;
> @@ -1139,13 +1226,25 @@ static int __init phy_init(void)
> 
>  	rc = phy_driver_register(&genphy_driver);
>  	if (rc)
> -		mdio_bus_exit();
> +		goto genphy_register_failed;
> +
> +	rc = phy_driver_register(&gen10g_driver);
> +	if (rc)
> +		goto gen10g_register_failed;
> +
> +	return rc;
> +
> +gen10g_register_failed:
> +	phy_driver_unregister(&genphy_driver);
> +genphy_register_failed:
> +	mdio_bus_exit();
> 
>  	return rc;
>  }
> 
>  static void __exit phy_exit(void)
>  {
> +	phy_driver_unregister(&gen10g_driver);
>  	phy_driver_unregister(&genphy_driver);
>  	mdio_bus_exit();
>  }
> diff --git a/include/linux/phy.h b/include/linux/phy.h index 684925a..f864004
> 100644
> --- a/include/linux/phy.h
> +++ b/include/linux/phy.h
> @@ -66,6 +66,7 @@ typedef enum {
>  	PHY_INTERFACE_MODE_RGMII_TXID,
>  	PHY_INTERFACE_MODE_RTBI,
>  	PHY_INTERFACE_MODE_SMII,
> +	PHY_INTERFACE_MODE_XGMII,
>  } phy_interface_t;
> 
> 
> --
> 1.8.4.1