diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-net-phydev | 2 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/net/ethernet.txt | 2 | ||||
| -rw-r--r-- | MAINTAINERS | 6 | ||||
| -rw-r--r-- | drivers/net/phy/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/net/phy/Makefile | 3 | ||||
| -rw-r--r-- | drivers/net/phy/marvell10g.c | 368 | ||||
| -rw-r--r-- | drivers/net/phy/phy-c45.c | 298 | ||||
| -rw-r--r-- | drivers/net/phy/phy.c | 29 | ||||
| -rw-r--r-- | drivers/net/phy/phy_device.c | 113 | ||||
| -rw-r--r-- | include/linux/phy.h | 20 |
10 files changed, 748 insertions, 98 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-net-phydev b/Documentation/ABI/testing/sysfs-class-net-phydev index c768d5fd8496..6ebabfb27912 100644 --- a/Documentation/ABI/testing/sysfs-class-net-phydev +++ b/Documentation/ABI/testing/sysfs-class-net-phydev @@ -32,5 +32,5 @@ Description: <empty> (not available), mii, gmii, sgmii, tbi, rev-mii, rmii, rgmii, rgmii-id, rgmii-rxid, rgmii-txid, rtbi, smii xgmii, moca, qsgmii, trgmii, 1000base-x, 2500base-x, rxaui, - unknown + xaui, 10gbase-kr, unknown diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt index 3a6916909d90..d4abe9a98109 100644 --- a/Documentation/devicetree/bindings/net/ethernet.txt +++ b/Documentation/devicetree/bindings/net/ethernet.txt @@ -32,6 +32,8 @@ The following properties are common to the Ethernet controllers: * "2000base-x", * "2500base-x", * "rxaui" + * "xaui" + * "10gbase-kr" (10GBASE-KR, XFI, SFI) - phy-connection-type: the same as "phy-mode" property but described in ePAPR; - phy-handle: phandle, specifies a reference to a node representing a PHY device; this property is described in ePAPR and so preferred; diff --git a/MAINTAINERS b/MAINTAINERS index 6b7625ff9875..3cf8b0a22019 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7979,6 +7979,12 @@ S: Maintained F: drivers/net/ethernet/marvell/mv643xx_eth.* F: include/linux/mv643xx.h +MARVELL MV88X3310 PHY DRIVER +M: Russell King <rmk@armlinux.org.uk> +L: netdev@vger.kernel.org +S: Maintained +F: drivers/net/phy/marvell10g.c + MARVELL MVNETA ETHERNET DRIVER M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> L: netdev@vger.kernel.org diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 0c516d3229d0..65af31f24f01 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -292,6 +292,11 @@ config MARVELL_PHY ---help--- Currently has a driver for the 88E1011S +config MARVELL_10G_PHY + tristate "Marvell Alaska 10Gbit PHYs" + ---help--- + Support for the Marvell Alaska MV88X3310 and compatible PHYs. + config MESON_GXL_PHY tristate "Amlogic Meson GXL Internal PHY" depends on ARCH_MESON || COMPILE_TEST diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index e2fde094f63d..8e9b9f349384 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -1,6 +1,6 @@ # Makefile for Linux PHY drivers and MDIO bus drivers -libphy-y := phy.o phy-core.o phy_device.o +libphy-y := phy.o phy-c45.o phy-core.o phy_device.o mdio-bus-y += mdio_bus.o mdio_device.o ifdef CONFIG_MDIO_DEVICE @@ -57,6 +57,7 @@ obj-$(CONFIG_INTEL_XWAY_PHY) += intel-xway.o obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o obj-$(CONFIG_LXT_PHY) += lxt.o obj-$(CONFIG_MARVELL_PHY) += marvell.o +obj-$(CONFIG_MARVELL_10G_PHY) += marvell10g.o obj-$(CONFIG_MESON_GXL_PHY) += meson-gxl.o obj-$(CONFIG_MICREL_KS8995MA) += spi_ks8995.o obj-$(CONFIG_MICREL_PHY) += micrel.o diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c new file mode 100644 index 000000000000..aebc08beceba --- /dev/null +++ b/drivers/net/phy/marvell10g.c @@ -0,0 +1,368 @@ +/* + * Marvell 10G 88x3310 PHY driver + * + * Based upon the ID registers, this PHY appears to be a mixture of IPs + * from two different companies. + * + * There appears to be several different data paths through the PHY which + * are automatically managed by the PHY. The following has been determined + * via observation and experimentation: + * + * SGMII PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for <= 1G) + * 10GBASE-KR PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for 10G) + * 10GBASE-KR PHYXS -- BASE-R PCS -- Fiber + * + * If both the fiber and copper ports are connected, the first to gain + * link takes priority and the other port is completely locked out. + */ +#include <linux/phy.h> + +enum { + MV_PCS_BASE_T = 0x0000, + MV_PCS_BASE_R = 0x1000, + MV_PCS_1000BASEX = 0x2000, + + /* These registers appear at 0x800X and 0xa00X - the 0xa00X control + * registers appear to set themselves to the 0x800X when AN is + * restarted, but status registers appear readable from either. + */ + MV_AN_CTRL1000 = 0x8000, /* 1000base-T control register */ + MV_AN_STAT1000 = 0x8001, /* 1000base-T status register */ + + /* This register appears to reflect the copper status */ + MV_AN_RESULT = 0xa016, + MV_AN_RESULT_SPD_10 = BIT(12), + MV_AN_RESULT_SPD_100 = BIT(13), + MV_AN_RESULT_SPD_1000 = BIT(14), + MV_AN_RESULT_SPD_10000 = BIT(15), +}; + +static int mv3310_modify(struct phy_device *phydev, int devad, u16 reg, + u16 mask, u16 bits) +{ + int old, val, ret; + + old = phy_read_mmd(phydev, devad, reg); + if (old < 0) + return old; + + val = (old & ~mask) | (bits & mask); + if (val == old) + return 0; + + ret = phy_write_mmd(phydev, devad, reg, val); + + return ret < 0 ? ret : 1; +} + +static int mv3310_probe(struct phy_device *phydev) +{ + u32 mmd_mask = MDIO_DEVS_PMAPMD | MDIO_DEVS_AN; + + if (!phydev->is_c45 || + (phydev->c45_ids.devices_in_package & mmd_mask) != mmd_mask) + return -ENODEV; + + return 0; +} + +/* + * Resetting the MV88X3310 causes it to become non-responsive. Avoid + * setting the reset bit(s). + */ +static int mv3310_soft_reset(struct phy_device *phydev) +{ + return 0; +} + +static int mv3310_config_init(struct phy_device *phydev) +{ + __ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, }; + u32 mask; + int val; + + /* Check that the PHY interface type is compatible */ + if (phydev->interface != PHY_INTERFACE_MODE_SGMII && + phydev->interface != PHY_INTERFACE_MODE_XGMII && + phydev->interface != PHY_INTERFACE_MODE_XAUI && + phydev->interface != PHY_INTERFACE_MODE_RXAUI && + phydev->interface != PHY_INTERFACE_MODE_10GKR) + return -ENODEV; + + __set_bit(ETHTOOL_LINK_MODE_Pause_BIT, supported); + __set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, supported); + + if (phydev->c45_ids.devices_in_package & MDIO_DEVS_AN) { + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + if (val < 0) + return val; + + if (val & MDIO_AN_STAT1_ABLE) + __set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, supported); + } + + val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_STAT2); + if (val < 0) + return val; + + /* Ethtool does not support the WAN mode bits */ + if (val & (MDIO_PMA_STAT2_10GBSR | MDIO_PMA_STAT2_10GBLR | + MDIO_PMA_STAT2_10GBER | MDIO_PMA_STAT2_10GBLX4 | + MDIO_PMA_STAT2_10GBSW | MDIO_PMA_STAT2_10GBLW | + MDIO_PMA_STAT2_10GBEW)) + __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, supported); + if (val & MDIO_PMA_STAT2_10GBSR) + __set_bit(ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, supported); + if (val & MDIO_PMA_STAT2_10GBLR) + __set_bit(ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, supported); + if (val & MDIO_PMA_STAT2_10GBER) + __set_bit(ETHTOOL_LINK_MODE_10000baseER_Full_BIT, supported); + + if (val & MDIO_PMA_STAT2_EXTABLE) { + val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_EXTABLE); + if (val < 0) + return val; + + if (val & (MDIO_PMA_EXTABLE_10GBT | MDIO_PMA_EXTABLE_1000BT | + MDIO_PMA_EXTABLE_100BTX | MDIO_PMA_EXTABLE_10BT)) + __set_bit(ETHTOOL_LINK_MODE_TP_BIT, supported); + if (val & MDIO_PMA_EXTABLE_10GBLRM) + __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, supported); + if (val & (MDIO_PMA_EXTABLE_10GBKX4 | MDIO_PMA_EXTABLE_10GBKR | + MDIO_PMA_EXTABLE_1000BKX)) + __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, supported); + if (val & MDIO_PMA_EXTABLE_10GBLRM) + __set_bit(ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_10GBT) + __set_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_10GBKX4) + __set_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_10GBKR) + __set_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_1000BT) + __set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_1000BKX) + __set_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_100BTX) + __set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, + supported); + if (val & MDIO_PMA_EXTABLE_10BT) + __set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, + supported); + } + + if (!ethtool_convert_link_mode_to_legacy_u32(&mask, supported)) + dev_warn(&phydev->mdio.dev, + "PHY supports (%*pb) more modes than phylib supports, some modes not supported.\n", + __ETHTOOL_LINK_MODE_MASK_NBITS, supported); + + phydev->supported &= mask; + phydev->advertising &= phydev->supported; + + return 0; +} + +static int mv3310_config_aneg(struct phy_device *phydev) +{ + bool changed = false; + u32 advertising; + int ret; + + if (phydev->autoneg == AUTONEG_DISABLE) { + ret = genphy_c45_pma_setup_forced(phydev); + if (ret < 0) + return ret; + + return genphy_c45_an_disable_aneg(phydev); + } + + phydev->advertising &= phydev->supported; + advertising = phydev->advertising; + + ret = mv3310_modify(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_100BASE4 | + ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM, + ethtool_adv_to_mii_adv_t(advertising)); + if (ret < 0) + return ret; + if (ret > 0) + changed = true; + + ret = mv3310_modify(phydev, MDIO_MMD_AN, MV_AN_CTRL1000, + ADVERTISE_1000FULL | ADVERTISE_1000HALF, + ethtool_adv_to_mii_ctrl1000_t(advertising)); + if (ret < 0) + return ret; + if (ret > 0) + changed = true; + + /* 10G control register */ + ret = mv3310_modify(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL, + MDIO_AN_10GBT_CTRL_ADV10G, + advertising & ADVERTISED_10000baseT_Full ? + MDIO_AN_10GBT_CTRL_ADV10G : 0); + if (ret < 0) + return ret; + if (ret > 0) + changed = true; + + if (changed) + ret = genphy_c45_restart_aneg(phydev); + + return ret; +} + +static int mv3310_aneg_done(struct phy_device *phydev) +{ + int val; + + val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1); + if (val < 0) + return val; + + if (val & MDIO_STAT1_LSTATUS) + return 1; + + return genphy_c45_aneg_done(phydev); +} + +/* 10GBASE-ER,LR,LRM,SR do not support autonegotiation. */ +static int mv3310_read_10gbr_status(struct phy_device *phydev) +{ + phydev->link = 1; + phydev->speed = SPEED_10000; + phydev->duplex = DUPLEX_FULL; + + if (phydev->interface == PHY_INTERFACE_MODE_SGMII) + phydev->interface = PHY_INTERFACE_MODE_10GKR; + + return 0; +} + +static int mv3310_read_status(struct phy_device *phydev) +{ + u32 mmd_mask = phydev->c45_ids.devices_in_package; + int val; + + /* The vendor devads do not report link status. Avoid the PHYXS + * instance as there are three, and its status depends on the MAC + * being appropriately configured for the negotiated speed. + */ + mmd_mask &= ~(BIT(MDIO_MMD_VEND1) | BIT(MDIO_MMD_VEND2) | + BIT(MDIO_MMD_PHYXS)); + + phydev->speed = SPEED_UNKNOWN; + phydev->duplex = DUPLEX_UNKNOWN; + phydev->lp_advertising = 0; + phydev->link = 0; + phydev->pause = 0; + phydev->asym_pause = 0; + + val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1); + if (val < 0) + return val; + + if (val & MDIO_STAT1_LSTATUS) + return mv3310_read_10gbr_status(phydev); + + val = genphy_c45_read_link(phydev, mmd_mask); + if (val < 0) + return val; + + phydev->link = val > 0 ? 1 : 0; + + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + if (val < 0) + return val; + + if (val & MDIO_AN_STAT1_COMPLETE) { + val = genphy_c45_read_lpa(phydev); + if (val < 0) + return val; + + /* Read the link partner's 1G advertisment */ + val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_STAT1000); + if (val < 0) + return val; + + phydev->lp_advertising |= mii_stat1000_to_ethtool_lpa_t(val); + + if (phydev->autoneg == AUTONEG_ENABLE) { + val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_RESULT); + if (val < 0) + return val; + + if (val & MV_AN_RESULT_SPD_10000) + phydev->speed = SPEED_10000; + else if (val & MV_AN_RESULT_SPD_1000) + phydev->speed = SPEED_1000; + else if (val & MV_AN_RESULT_SPD_100) + phydev->speed = SPEED_100; + else if (val & MV_AN_RESULT_SPD_10) + phydev->speed = SPEED_10; + + phydev->duplex = DUPLEX_FULL; + } + } + + if (phydev->autoneg != AUTONEG_ENABLE) { + val = genphy_c45_read_pma(phydev); + if (val < 0) + return val; + } + + if ((phydev->interface == PHY_INTERFACE_MODE_SGMII || + phydev->interface == PHY_INTERFACE_MODE_10GKR) && phydev->link) { + /* The PHY automatically switches its serdes interface (and + * active PHYXS instance) between Cisco SGMII and 10GBase-KR + * modes according to the speed. Florian suggests setting + * phydev->interface to communicate this to the MAC. Only do + * this if we are already in either SGMII or 10GBase-KR mode. + */ + if (phydev->speed == SPEED_10000) + phydev->interface = PHY_INTERFACE_MODE_10GKR; + else if (phydev->speed >= SPEED_10 && + phydev->speed < SPEED_10000) + phydev->interface = PHY_INTERFACE_MODE_SGMII; + } + + return 0; +} + +static struct phy_driver mv3310_drivers[] = { + { + .phy_id = 0x002b09aa, + .phy_id_mask = 0xffffffff, + .name = "mv88x3310", + .features = SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full | + SUPPORTED_Autoneg | + SUPPORTED_TP | + SUPPORTED_FIBRE | + SUPPORTED_10000baseT_Full | + SUPPORTED_Backplane, + .probe = mv3310_probe, + .soft_reset = mv3310_soft_reset, + .config_init = mv3310_config_init, + .config_aneg = mv3310_config_aneg, + .aneg_done = mv3310_aneg_done, + .read_status = mv3310_read_status, + }, +}; + +module_phy_driver(mv3310_drivers); + +static struct mdio_device_id __maybe_unused mv3310_tbl[] = { + { 0x002b09aa, 0xffffffff }, + { }, +}; +MODULE_DEVICE_TABLE(mdio, mv3310_tbl); +MODULE_DESCRIPTION("Marvell Alaska X 10Gigabit Ethernet PHY driver (MV88X3310)"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c new file mode 100644 index 000000000000..dada819c6b78 --- /dev/null +++ b/drivers/net/phy/phy-c45.c @@ -0,0 +1,298 @@ +/* + * Clause 45 PHY support + */ +#include <linux/ethtool.h> +#include <linux/export.h> +#include <linux/mdio.h> +#include <linux/mii.h> +#include <linux/phy.h> + +/** + * genphy_c45_setup_forced - configures a forced speed + * @phydev: target phy_device struct + */ +int genphy_c45_pma_setup_forced(struct phy_device *phydev) +{ + int ctrl1, ctrl2, ret; + + /* Half duplex is not supported */ + if (phydev->duplex != DUPLEX_FULL) + return -EINVAL; + + ctrl1 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1); + if (ctrl1 < 0) + return ctrl1; + + ctrl2 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2); + if (ctrl2 < 0) + return ctrl2; + + ctrl1 &= ~MDIO_CTRL1_SPEEDSEL; + /* + * PMA/PMD type selection is 1.7.5:0 not 1.7.3:0. See 45.2.1.6.1 + * in 802.3-2012 and 802.3-2015. + */ + ctrl2 &= ~(MDIO_PMA_CTRL2_TYPE | 0x30); + + switch (phydev->speed) { + case SPEED_10: + ctrl2 |= MDIO_PMA_CTRL2_10BT; + break; + case SPEED_100: + ctrl1 |= MDIO_PMA_CTRL1_SPEED100; + ctrl2 |= MDIO_PMA_CTRL2_100BTX; + break; + case SPEED_1000: + ctrl1 |= MDIO_PMA_CTRL1_SPEED1000; + /* Assume 1000base-T */ + ctrl2 |= MDIO_PMA_CTRL2_1000BT; + break; + case SPEED_10000: + ctrl1 |= MDIO_CTRL1_SPEED10G; + /* Assume 10Gbase-T */ + ctrl2 |= MDIO_PMA_CTRL2_10GBT; + break; + default: + return -EINVAL; + } + + ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, ctrl1); + if (ret < 0) + return ret; + + return phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2, ctrl2); +} +EXPORT_SYMBOL_GPL(genphy_c45_pma_setup_forced); + +/** + * genphy_c45_an_disable_aneg - disable auto-negotiation + * @phydev: target phy_device struct + * + * Disable auto-negotiation in the Clause 45 PHY. The link parameters + * parameters are controlled through the PMA/PMD MMD registers. + * + * Returns zero on success, negative errno code on failure. + */ +int genphy_c45_an_disable_aneg(struct phy_device *phydev) +{ + int val; + + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1); + if (val < 0) + return val; + + val &= ~(MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART); + + return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, val); +} +EXPORT_SYMBOL_GPL(genphy_c45_an_disable_aneg); + +/** + * genphy_c45_restart_aneg - Enable and restart auto-negotiation + * @phydev: target phy_device struct + * + * This assumes that the auto-negotiation MMD is present. + * + * Enable and restart auto-negotiation. + */ +int genphy_c45_restart_aneg(struct phy_device *phydev) +{ + int val; + + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1); + if (val < 0) + return val; + + val |= MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART; + + return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, val); +} +EXPORT_SYMBOL_GPL(genphy_c45_restart_aneg); + +/** + * genphy_c45_aneg_done - return auto-negotiation complete status + * @phydev: target phy_device struct + * + * This assumes that the auto-negotiation MMD is present. + * + * Reads the status register from the auto-negotiation MMD, returning: + * - positive if auto-negotiation is complete + * - negative errno code on error + * - zero otherwise + */ +int genphy_c45_aneg_done(struct phy_device *phydev) +{ + int val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + + return val < 0 ? val : val & MDIO_AN_STAT1_COMPLETE ? 1 : 0; +} +EXPORT_SYMBOL_GPL(genphy_c45_aneg_done); + +/** + * genphy_c45_read_link - read the overall link status from the MMDs + * @phydev: target phy_device struct + * @mmd_mask: MMDs to read status from + * + * Read the link status from the specified MMDs, and if they all indicate + * that the link is up, return positive. If an error is encountered, + * a negative errno will be returned, otherwise zero. + */ +int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask) +{ + int val, devad; + bool link = true; + + while (mmd_mask) { + devad = __ffs(mmd_mask); + mmd_mask &= ~BIT(devad); + + /* The link state is latched low so that momentary link + * drops can be detected. Do not double-read the status + * register if the link is down. + */ + val = phy_read_mmd(phydev, devad, MDIO_STAT1); + if (val < 0) + return val; + + if (!(val & MDIO_STAT1_LSTATUS)) + link = false; + } + + return link; +} +EXPORT_SYMBOL_GPL(genphy_c45_read_link); + +/** + * genphy_c45_read_lpa - read the link partner advertisment and pause + * @phydev: target phy_device struct + * + * Read the Clause 45 defined base (7.19) and 10G (7.33) status registers, + * filling in the link partner advertisment, pause and asym_pause members + * in @phydev. This assumes that the auto-negotiation MMD is present, and + * the backplane bit (7.48.0) is clear. Clause 45 PHY drivers are expected + * to fill in the remainder of the link partner advert from vendor registers. + */ +int genphy_c45_read_lpa(struct phy_device *phydev) +{ + int val; + + /* Read the link partner's base page advertisment */ + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_LPA); + if (val < 0) + return val; + + phydev->lp_advertising = mii_lpa_to_ethtool_lpa_t(val); + phydev->pause = val & LPA_PAUSE_CAP ? 1 : 0; + phydev->asym_pause = val & LPA_PAUSE_ASYM ? 1 : 0; + + /* Read the link partner's 10G advertisment */ + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT); + if (val < 0) + return val; + + if (val & MDIO_AN_10GBT_STAT_LP10G) + phydev->lp_advertising |= ADVERTISED_10000baseT_Full; + + return 0; +} +EXPORT_SYMBOL_GPL(genphy_c45_read_lpa); + +/** + * genphy_c45_read_pma - read link speed etc from PMA + * @phydev: target phy_device struct + */ +int genphy_c45_read_pma(struct phy_device *phydev) +{ + int val; + + val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1); + if (val < 0) + return val; + + switch (val & MDIO_CTRL1_SPEEDSEL) { + case 0: + phydev->speed = SPEED_10; + break; + case MDIO_PMA_CTRL1_SPEED100: + phydev->speed = SPEED_100; + break; + case MDIO_PMA_CTRL1_SPEED1000: + phydev->speed = SPEED_1000; + break; + case MDIO_CTRL1_SPEED10G: + phydev->speed = SPEED_10000; + break; + default: + phydev->speed = SPEED_UNKNOWN; + break; + } + + phydev->duplex = DUPLEX_FULL; + + return 0; +} +EXPORT_SYMBOL_GPL(genphy_c45_read_pma); + +/* The gen10g_* functions are the old Clause 45 stub */ + +static int gen10g_config_aneg(struct phy_device *phydev) +{ + return 0; +} + +static int gen10g_read_status(struct phy_device *phydev) +{ + u32 mmd_mask = phydev->c45_ids.devices_in_package; + int ret; + + /* For now just lie and say it's 10G all the time */ + phydev->speed = SPEED_10000; + phydev->duplex = DUPLEX_FULL; + + /* Avoid reading the vendor MMDs */ + mmd_mask &= ~(BIT(MDIO_MMD_VEND1) | BIT(MDIO_MMD_VEND2)); + + ret = genphy_c45_read_link(phydev, mmd_mask); + + phydev->link = ret > 0 ? 1 : 0; + + return 0; +} + +static int gen10g_soft_reset(struct phy_device *phydev) +{ + /* Do nothing for now */ + return 0; +} + +static int gen10g_config_init(struct phy_device *phydev) +{ + /* Temporarily just say we support everything */ + phydev->supported = SUPPORTED_10000baseT_Full; + phydev->advertising = SUPPORTED_10000baseT_Full; + + return 0; +} + +static int gen10g_suspend(struct phy_device *phydev) +{ + return 0; +} + +static int gen10g_resume(struct phy_device *phydev) +{ + return 0; +} + +struct phy_driver genphy_10g_driver = { + .phy_id = 0xffffffff, + .phy_id_mask = 0xffffffff, + .name = "Generic 10G PHY", + .soft_reset = gen10g_soft_reset, + .config_init = gen10g_config_init, + .features = 0, + .config_aneg = gen10g_config_aneg, + .read_status = gen10g_read_status, + .suspend = gen10g_suspend, + .resume = gen10g_resume, +}; diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 40f4c6a2ef6c..12548e5b6037 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -149,6 +149,25 @@ static int phy_config_interrupt(struct phy_device *phydev, u32 interrupts) return 0; } +/** + * phy_restart_aneg - restart auto-negotiation + * @phydev: target phy_device struct + * + * Restart the autonegotiation on @phydev. Returns >= 0 on success or + * negative errno on error. + */ +int phy_restart_aneg(struct phy_device *phydev) +{ + int ret; + + if (phydev->is_c45 && !(phydev->c45_ids.devices_in_package & BIT(0))) + ret = genphy_c45_restart_aneg(phydev); + else + ret = genphy_restart_aneg(phydev); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_restart_aneg); /** * phy_aneg_done - return auto-negotiation status @@ -163,6 +182,12 @@ int phy_aneg_done(struct phy_device *phydev) if (phydev->drv && phydev->drv->aneg_done) return phydev->drv->aneg_done(phydev); + /* Avoid genphy_aneg_done() if the Clause 45 PHY does not + * implement Clause 22 registers + */ + if (phydev->is_c45 && !(phydev->c45_ids.devices_in_package & BIT(0))) + return -EINVAL; + return genphy_aneg_done(phydev); } EXPORT_SYMBOL(phy_aneg_done); @@ -1391,7 +1416,7 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) /* Restart autonegotiation so the new modes get sent to the * link partner. */ - ret = genphy_restart_aneg(phydev); + ret = phy_restart_aneg(phydev); if (ret < 0) return ret; } @@ -1450,6 +1475,6 @@ int phy_ethtool_nway_reset(struct net_device *ndev) if (!phydev->drv) return -EIO; - return genphy_restart_aneg(phydev); + return phy_restart_aneg(phydev); } EXPORT_SYMBOL(phy_ethtool_nway_reset); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 37a1e98908e3..acf00f071c9a 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -69,13 +69,8 @@ static void phy_mdio_device_remove(struct mdio_device *mdiodev) phy_device_remove(phydev); } -enum genphy_driver { - GENPHY_DRV_1G, - GENPHY_DRV_10G, - GENPHY_DRV_MAX -}; - -static struct phy_driver genphy_driver[GENPHY_DRV_MAX]; +static struct phy_driver genphy_driver; +extern struct phy_driver genphy_10g_driver; static LIST_HEAD(phy_fixup_list); static DEFINE_MUTEX(phy_fixup_lock); @@ -928,11 +923,9 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, */ if (!d->driver) { if (phydev->is_c45) - d->driver = - &genphy_driver[GENPHY_DRV_10G].mdiodrv.driver; + d->driver = &genphy_10g_driver.mdiodrv.driver; else - d->driver = - &genphy_driver[GENPHY_DRV_1G].mdiodrv.driver; + d->driver = &genphy_driver.mdiodrv.driver; using_genphy = true; } @@ -1069,7 +1062,6 @@ void phy_detach(struct phy_device *phydev) struct net_device *dev = phydev->attached_dev; struct module *ndev_owner = dev->dev.parent->driver->owner; struct mii_bus *bus; - int i; if (phydev->sysfs_links) { sysfs_remove_link(&dev->dev.kobj, "phydev"); @@ -1088,13 +1080,9 @@ void phy_detach(struct phy_device *phydev) * from the generic driver so that there's a chance a * real driver could be loaded */ - for (i = 0; i < ARRAY_SIZE(genphy_driver); i++) { - if (phydev->mdio.dev.driver == - &genphy_driver[i].mdiodrv.driver) { - device_release_driver(&phydev->mdio.dev); - break; - } - } + if (phydev->mdio.dev.driver == &genphy_10g_driver.mdiodrv.driver || + phydev->mdio.dev.driver == &genphy_driver.mdiodrv.driver) + device_release_driver(&phydev->mdio.dev); /* * The phydev might go away on the put_device() below, so avoid @@ -1368,11 +1356,6 @@ int genphy_aneg_done(struct phy_device *phydev) } EXPORT_SYMBOL(genphy_aneg_done); -static int gen10g_config_aneg(struct phy_device *phydev) -{ - return 0; -} - /** * genphy_update_link - update link status in @phydev * @phydev: target phy_device struct @@ -1506,33 +1489,6 @@ int genphy_read_status(struct phy_device *phydev) } EXPORT_SYMBOL(genphy_read_status); -static 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 = 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; -} - /** * genphy_soft_reset - software reset the PHY via BMCR_RESET bit * @phydev: target phy_device struct @@ -1598,21 +1554,6 @@ int genphy_config_init(struct phy_device *phydev) } EXPORT_SYMBOL(genphy_config_init); -static int gen10g_soft_reset(struct phy_device *phydev) -{ - /* Do nothing for now */ - return 0; -} - -static int gen10g_config_init(struct phy_device *phydev) -{ - /* Temporarily just say we support everything */ - phydev->supported = SUPPORTED_10000baseT_Full; - phydev->advertising = SUPPORTED_10000baseT_Full; - - return 0; -} - int genphy_suspend(struct phy_device *phydev) { int value; @@ -1628,11 +1569,6 @@ int genphy_suspend(struct phy_device *phydev) } EXPORT_SYMBOL(genphy_suspend); -static int gen10g_suspend(struct phy_device *phydev) -{ - return 0; -} - int genphy_resume(struct phy_device *phydev) { int value; @@ -1648,11 +1584,6 @@ int genphy_resume(struct phy_device *phydev) } EXPORT_SYMBOL(genphy_resume); -static int gen10g_resume(struct phy_device *phydev) -{ - return 0; -} - static int __set_phy_supported(struct phy_device *phydev, u32 max_speed) { /* The default values for phydev->supported are provided by the PHY @@ -1884,8 +1815,7 @@ void phy_drivers_unregister(struct phy_driver *drv, int n) } EXPORT_SYMBOL(phy_drivers_unregister); -static struct phy_driver genphy_driver[] = { -{ +static struct phy_driver genphy_driver = { .phy_id = 0xffffffff, .phy_id_mask = 0xffffffff, .name = "Generic PHY", @@ -1899,18 +1829,7 @@ static struct phy_driver genphy_driver[] = { .read_status = genphy_read_status, .suspend = genphy_suspend, .resume = genphy_resume, -}, { - .phy_id = 0xffffffff, - .phy_id_mask = 0xffffffff, - .name = "Generic 10G PHY", - .soft_reset = gen10g_soft_reset, - .config_init = gen10g_config_init, - .features = 0, - .config_aneg = gen10g_config_aneg, - .read_status = gen10g_read_status, - .suspend = gen10g_suspend, - .resume = gen10g_resume, -} }; +}; static int __init phy_init(void) { @@ -1920,18 +1839,24 @@ static int __init phy_init(void) if (rc) return rc; - rc = phy_drivers_register(genphy_driver, - ARRAY_SIZE(genphy_driver), THIS_MODULE); + rc = phy_driver_register(&genphy_10g_driver, THIS_MODULE); if (rc) + goto err_10g; + + rc = phy_driver_register(&genphy_driver, THIS_MODULE); + if (rc) { + phy_driver_unregister(&genphy_10g_driver); +err_10g: mdio_bus_exit(); + } return rc; } static void __exit phy_exit(void) { - phy_drivers_unregister(genphy_driver, - ARRAY_SIZE(genphy_driver)); + phy_driver_unregister(&genphy_10g_driver); + phy_driver_unregister(&genphy_driver); mdio_bus_exit(); } diff --git a/include/linux/phy.h b/include/linux/phy.h index 748e526c0698..414242200a90 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -83,6 +83,9 @@ typedef enum { PHY_INTERFACE_MODE_1000BASEX, PHY_INTERFACE_MODE_2500BASEX, PHY_INTERFACE_MODE_RXAUI, + PHY_INTERFACE_MODE_XAUI, + /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */ + PHY_INTERFACE_MODE_10GKR, PHY_INTERFACE_MODE_MAX, } phy_interface_t; @@ -149,6 +152,10 @@ static inline const char *phy_modes(phy_interface_t interface) return "2500base-x"; case PHY_INTERFACE_MODE_RXAUI: return "rxaui"; + case PHY_INTERFACE_MODE_XAUI: + return "xaui"; + case PHY_INTERFACE_MODE_10GKR: + return "10gbase-kr"; default: return "unknown"; } @@ -804,6 +811,7 @@ int phy_start_aneg(struct phy_device *phydev); int phy_aneg_done(struct phy_device *phydev); int phy_stop_interrupts(struct phy_device *phydev); +int phy_restart_aneg(struct phy_device *phydev); static inline int phy_read_status(struct phy_device *phydev) { @@ -827,6 +835,8 @@ static inline const char *phydev_name(const struct phy_device *phydev) void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) __printf(2, 3); void phy_attached_info(struct phy_device *phydev); + +/* Clause 22 PHY */ int genphy_config_init(struct phy_device *phydev); int genphy_setup_forced(struct phy_device *phydev); int genphy_restart_aneg(struct phy_device *phydev); @@ -841,6 +851,16 @@ static inline int genphy_no_soft_reset(struct phy_device *phydev) { return 0; } + +/* Clause 45 PHY */ +int genphy_c45_restart_aneg(struct phy_device *phydev); +int genphy_c45_aneg_done(struct phy_device *phydev); +int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask); +int genphy_c45_read_lpa(struct phy_device *phydev); +int genphy_c45_read_pma(struct phy_device *phydev); +int genphy_c45_pma_setup_forced(struct phy_device *phydev); +int genphy_c45_an_disable_aneg(struct phy_device *phydev); + void phy_driver_unregister(struct phy_driver *drv); void phy_drivers_unregister(struct phy_driver *drv, int n); int phy_driver_register(struct phy_driver *new_driver, struct module *owner); |