Hello, Florian, Thank you for reviewing the patches! Please see my comments inline.
Best Regards, Shaohui Xie > -----Original Message----- > From: Florian Fainelli [mailto:f.faine...@gmail.com] > Sent: Wednesday, November 13, 2013 1:54 AM > To: shh....@gmail.com > Cc: linuxppc-dev; linux-ker...@vger.kernel.org; Bucur Madalin-Cristian- > B32716; Kanetkar Shruti-B44454; Xie Shaohui-B21989 > Subject: Re: [PATCH 2/4] phylib: Add generic 10G driver > > Hello Shaohui, > > 2013/11/11 <shh....@gmail.com>: > > From: Andy Fleming > > > > Very incomplete, but will allow for binding an ethernet controller to > > it. > > > > Also, Add XGMII interface type > > So that should be two separate patches, and > drivers/of/of_net.c::of_get_phy_mode() must be updated to know about > XMGII. > > > > > Signed-off-by: Andy Fleming > > Missing Andy's Signed-off-by tag. [S.H] Will add in next version, I removed it to make git work since Andy's e-mail address is not valid. > > > Signed-off-by: Shaohui Xie <shaohui....@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; > > Can you at least make this a little more proof? Something along: > > if (phydev->supported & (SUPPORTED_10000baseT_Full)) > phydev->speed = SPEED_10000; else if (phydev->supported & > (SUPPORTED_1000baseT_Full) > phydev->speed = SPEED_1000; [S.H] some 10G PHY only support 10G speed. > > Although ideally we should be reading the relevant registers to figure > out what to do. [S.H] Yes, code below will try to read the mmds to get status. > > > + 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; > > For consistency you should set SUPPORTED_TP, 1000baseT_Full does not make > sense for anything but twisted pairs AFAIR. [S.H] OK. > > > + > > + 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, > > This should be updated to be PHY_10GBIT_FEATURES where > PHY_10GBIT_FEATURES is defined to contain at least PHY_GBIT_FEATURES. [S.H] for a generic 10G PHY, what is the feature should be supported? > > > + .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(); > > As a subsequent patch you could use phy_drivers_register() [S.H] you mean like phy_drivers_register(gen10g_driver, ARRAY_SIZE(gen10g_driver))? _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev