From 36f29e6cf8071fed3854d9825217ed2a3c83b990 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Sep 2015 21:27:10 +0100 Subject: net: mvneta: convert to phylink Convert mvneta to use phylink, which models the MAC to PHY link in a generic, reusable form. Signed-off-by: Russell King - remove unused sync status --- drivers/net/ethernet/marvell/Kconfig | 2 +- drivers/net/ethernet/marvell/mvneta.c | 594 ++++++++++++++++++++-------------- 2 files changed, 349 insertions(+), 247 deletions(-) --- a/drivers/net/ethernet/marvell/Kconfig +++ b/drivers/net/ethernet/marvell/Kconfig @@ -60,7 +60,7 @@ config MVNETA depends on ARCH_MVEBU || COMPILE_TEST depends on HAS_DMA select MVMDIO - select FIXED_PHY + select PHYLINK ---help--- This driver supports the network interface units in the Marvell ARMADA XP, ARMADA 370, ARMADA 38x and --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -28,7 +28,7 @@ #include #include #include -#include +#include #include #include #include @@ -189,6 +189,7 @@ #define MVNETA_GMAC_CTRL_0 0x2c00 #define MVNETA_GMAC_MAX_RX_SIZE_SHIFT 2 #define MVNETA_GMAC_MAX_RX_SIZE_MASK 0x7ffc +#define MVNETA_GMAC0_PORT_1000BASE_X BIT(1) #define MVNETA_GMAC0_PORT_ENABLE BIT(0) #define MVNETA_GMAC_CTRL_2 0x2c08 #define MVNETA_GMAC2_INBAND_AN_ENABLE BIT(0) @@ -204,13 +205,19 @@ #define MVNETA_GMAC_TX_FLOW_CTRL_ENABLE BIT(5) #define MVNETA_GMAC_RX_FLOW_CTRL_ACTIVE BIT(6) #define MVNETA_GMAC_TX_FLOW_CTRL_ACTIVE BIT(7) +#define MVNETA_GMAC_AN_COMPLETE BIT(11) +#define MVNETA_GMAC_SYNC_OK BIT(14) #define MVNETA_GMAC_AUTONEG_CONFIG 0x2c0c #define MVNETA_GMAC_FORCE_LINK_DOWN BIT(0) #define MVNETA_GMAC_FORCE_LINK_PASS BIT(1) #define MVNETA_GMAC_INBAND_AN_ENABLE BIT(2) +#define MVNETA_GMAC_AN_BYPASS_ENABLE BIT(3) +#define MVNETA_GMAC_INBAND_RESTART_AN BIT(4) #define MVNETA_GMAC_CONFIG_MII_SPEED BIT(5) #define MVNETA_GMAC_CONFIG_GMII_SPEED BIT(6) #define MVNETA_GMAC_AN_SPEED_EN BIT(7) +#define MVNETA_GMAC_CONFIG_FLOW_CTRL BIT(8) +#define MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL BIT(9) #define MVNETA_GMAC_AN_FLOW_CTRL_EN BIT(11) #define MVNETA_GMAC_CONFIG_FULL_DUPLEX BIT(12) #define MVNETA_GMAC_AN_DUPLEX_EN BIT(13) @@ -237,6 +244,12 @@ #define MVNETA_TXQ_TOKEN_SIZE_REG(q) (0x3e40 + ((q) << 2)) #define MVNETA_TXQ_TOKEN_SIZE_MAX 0x7fffffff +#define MVNETA_LPI_CTRL_0 0x2cc0 +#define MVNETA_LPI_CTRL_1 0x2cc4 +#define MVNETA_LPI_REQUEST_ENABLE BIT(0) +#define MVNETA_LPI_CTRL_2 0x2cc8 +#define MVNETA_LPI_STATUS 0x2ccc + #define MVNETA_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff /* Descriptor ring Macros */ @@ -313,6 +326,11 @@ #define MVNETA_RX_GET_BM_POOL_ID(rxd) \ (((rxd)->status & MVNETA_RXD_BM_POOL_MASK) >> MVNETA_RXD_BM_POOL_SHIFT) +enum { + ETHTOOL_STAT_EEE_WAKEUP, + ETHTOOL_MAX_STATS, +}; + struct mvneta_statistic { unsigned short offset; unsigned short type; @@ -321,6 +339,7 @@ struct mvneta_statistic { #define T_REG_32 32 #define T_REG_64 64 +#define T_SW 1 static const struct mvneta_statistic mvneta_statistics[] = { { 0x3000, T_REG_64, "good_octets_received", }, @@ -355,6 +374,7 @@ static const struct mvneta_statistic mvn { 0x304c, T_REG_32, "broadcast_frames_sent", }, { 0x3054, T_REG_32, "fc_sent", }, { 0x300c, T_REG_32, "internal_mac_transmit_err", }, + { ETHTOOL_STAT_EEE_WAKEUP, T_SW, "eee_wakeup_errors", }, }; struct mvneta_pcpu_stats { @@ -407,20 +427,19 @@ struct mvneta_port { u16 tx_ring_size; u16 rx_ring_size; - struct mii_bus *mii_bus; - phy_interface_t phy_interface; - struct device_node *phy_node; - unsigned int link; - unsigned int duplex; - unsigned int speed; + struct device_node *dn; unsigned int tx_csum_limit; - unsigned int use_inband_status:1; + struct phylink *phylink; struct mvneta_bm *bm_priv; struct mvneta_bm_pool *pool_long; struct mvneta_bm_pool *pool_short; int bm_win_id; + bool eee_enabled; + bool eee_active; + bool tx_lpi_enabled; + u64 ethtool_stats[ARRAY_SIZE(mvneta_statistics)]; u32 indir[MVNETA_RSS_LU_TABLE_SIZE]; @@ -1215,10 +1234,6 @@ static void mvneta_port_disable(struct m val &= ~MVNETA_GMAC0_PORT_ENABLE; mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); - pp->link = 0; - pp->duplex = -1; - pp->speed = 0; - udelay(200); } @@ -1278,44 +1293,6 @@ static void mvneta_set_other_mcast_table mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + offset, val); } -static void mvneta_set_autoneg(struct mvneta_port *pp, int enable) -{ - u32 val; - - if (enable) { - val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~(MVNETA_GMAC_FORCE_LINK_PASS | - MVNETA_GMAC_FORCE_LINK_DOWN | - MVNETA_GMAC_AN_FLOW_CTRL_EN); - val |= MVNETA_GMAC_INBAND_AN_ENABLE | - MVNETA_GMAC_AN_SPEED_EN | - MVNETA_GMAC_AN_DUPLEX_EN; - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); - - val = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); - val |= MVNETA_GMAC_1MS_CLOCK_ENABLE; - mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, val); - - val = mvreg_read(pp, MVNETA_GMAC_CTRL_2); - val |= MVNETA_GMAC2_INBAND_AN_ENABLE; - mvreg_write(pp, MVNETA_GMAC_CTRL_2, val); - } else { - val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~(MVNETA_GMAC_INBAND_AN_ENABLE | - MVNETA_GMAC_AN_SPEED_EN | - MVNETA_GMAC_AN_DUPLEX_EN); - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); - - val = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); - val &= ~MVNETA_GMAC_1MS_CLOCK_ENABLE; - mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, val); - - val = mvreg_read(pp, MVNETA_GMAC_CTRL_2); - val &= ~MVNETA_GMAC2_INBAND_AN_ENABLE; - mvreg_write(pp, MVNETA_GMAC_CTRL_2, val); - } -} - static void mvneta_percpu_unmask_interrupt(void *arg) { struct mvneta_port *pp = arg; @@ -1468,7 +1445,6 @@ static void mvneta_defaults_set(struct m val &= ~MVNETA_PHY_POLLING_ENABLE; mvreg_write(pp, MVNETA_UNIT_CONTROL, val); - mvneta_set_autoneg(pp, pp->use_inband_status); mvneta_set_ucast_table(pp, -1); mvneta_set_special_mcast_table(pp, -1); mvneta_set_other_mcast_table(pp, -1); @@ -2693,26 +2669,11 @@ static irqreturn_t mvneta_percpu_isr(int return IRQ_HANDLED; } -static int mvneta_fixed_link_update(struct mvneta_port *pp, - struct phy_device *phy) +static void mvneta_link_change(struct mvneta_port *pp) { - struct fixed_phy_status status; - struct fixed_phy_status changed = {}; u32 gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS); - status.link = !!(gmac_stat & MVNETA_GMAC_LINK_UP); - if (gmac_stat & MVNETA_GMAC_SPEED_1000) - status.speed = SPEED_1000; - else if (gmac_stat & MVNETA_GMAC_SPEED_100) - status.speed = SPEED_100; - else - status.speed = SPEED_10; - status.duplex = !!(gmac_stat & MVNETA_GMAC_FULL_DUPLEX); - changed.link = 1; - changed.speed = 1; - changed.duplex = 1; - fixed_phy_update_state(phy, &status, &changed); - return 0; + phylink_mac_change(pp->phylink, !!(gmac_stat & MVNETA_GMAC_LINK_UP)); } /* NAPI handler @@ -2728,7 +2689,6 @@ static int mvneta_poll(struct napi_struc u32 cause_rx_tx; int rx_queue; struct mvneta_port *pp = netdev_priv(napi->dev); - struct net_device *ndev = pp->dev; struct mvneta_pcpu_port *port = this_cpu_ptr(pp->ports); if (!netif_running(pp->dev)) { @@ -2742,12 +2702,11 @@ static int mvneta_poll(struct napi_struc u32 cause_misc = mvreg_read(pp, MVNETA_INTR_MISC_CAUSE); mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0); - if (pp->use_inband_status && (cause_misc & - (MVNETA_CAUSE_PHY_STATUS_CHANGE | - MVNETA_CAUSE_LINK_CHANGE | - MVNETA_CAUSE_PSC_SYNC_CHANGE))) { - mvneta_fixed_link_update(pp, ndev->phydev); - } + + if (cause_misc & (MVNETA_CAUSE_PHY_STATUS_CHANGE | + MVNETA_CAUSE_LINK_CHANGE | + MVNETA_CAUSE_PSC_SYNC_CHANGE)) + mvneta_link_change(pp); } /* Release Tx descriptors */ @@ -3061,7 +3020,6 @@ static int mvneta_setup_txqs(struct mvne static void mvneta_start_dev(struct mvneta_port *pp) { int cpu; - struct net_device *ndev = pp->dev; mvneta_max_rx_size_set(pp, pp->pkt_size); mvneta_txq_max_tx_size_set(pp, pp->pkt_size); @@ -3089,16 +3047,15 @@ static void mvneta_start_dev(struct mvne MVNETA_CAUSE_LINK_CHANGE | MVNETA_CAUSE_PSC_SYNC_CHANGE); - phy_start(ndev->phydev); + phylink_start(pp->phylink); netif_tx_start_all_queues(pp->dev); } static void mvneta_stop_dev(struct mvneta_port *pp) { unsigned int cpu; - struct net_device *ndev = pp->dev; - phy_stop(ndev->phydev); + phylink_stop(pp->phylink); if (!pp->neta_armada3700) { for_each_online_cpu(cpu) { @@ -3251,103 +3208,232 @@ static int mvneta_set_mac_addr(struct ne return 0; } -static void mvneta_adjust_link(struct net_device *ndev) +static void mvneta_validate(struct net_device *ndev, unsigned long *supported, + struct phylink_link_state *state) +{ + __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; + + /* Allow all the expected bits */ + phylink_set(mask, Autoneg); + phylink_set_port_modes(mask); + + /* Asymmetric pause is unsupported */ + phylink_set(mask, Pause); + /* Half-duplex at speeds higher than 100Mbit is unsupported */ + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseX_Full); + + if (state->interface != PHY_INTERFACE_MODE_1000BASEX) { + /* 10M and 100M are only supported in non-802.3z mode */ + phylink_set(mask, 10baseT_Half); + phylink_set(mask, 10baseT_Full); + phylink_set(mask, 100baseT_Half); + phylink_set(mask, 100baseT_Full); + } + + bitmap_and(supported, supported, mask, + __ETHTOOL_LINK_MODE_MASK_NBITS); + bitmap_and(state->advertising, state->advertising, mask, + __ETHTOOL_LINK_MODE_MASK_NBITS); +} + +static int mvneta_mac_link_state(struct net_device *ndev, + struct phylink_link_state *state) { struct mvneta_port *pp = netdev_priv(ndev); - struct phy_device *phydev = ndev->phydev; - int status_change = 0; + u32 gmac_stat; - if (phydev->link) { - if ((pp->speed != phydev->speed) || - (pp->duplex != phydev->duplex)) { - u32 val; - - val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~(MVNETA_GMAC_CONFIG_MII_SPEED | - MVNETA_GMAC_CONFIG_GMII_SPEED | - MVNETA_GMAC_CONFIG_FULL_DUPLEX); - - if (phydev->duplex) - val |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; - - if (phydev->speed == SPEED_1000) - val |= MVNETA_GMAC_CONFIG_GMII_SPEED; - else if (phydev->speed == SPEED_100) - val |= MVNETA_GMAC_CONFIG_MII_SPEED; + gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS); - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + if (gmac_stat & MVNETA_GMAC_SPEED_1000) + state->speed = SPEED_1000; + else if (gmac_stat & MVNETA_GMAC_SPEED_100) + state->speed = SPEED_100; + else + state->speed = SPEED_10; - pp->duplex = phydev->duplex; - pp->speed = phydev->speed; - } + state->an_complete = !!(gmac_stat & MVNETA_GMAC_AN_COMPLETE); + state->link = !!(gmac_stat & MVNETA_GMAC_LINK_UP); + state->duplex = !!(gmac_stat & MVNETA_GMAC_FULL_DUPLEX); + + state->pause = 0; + if (gmac_stat & MVNETA_GMAC_RX_FLOW_CTRL_ENABLE) + state->pause |= MLO_PAUSE_RX; + if (gmac_stat & MVNETA_GMAC_TX_FLOW_CTRL_ENABLE) + state->pause |= MLO_PAUSE_TX; + + return 1; +} + +static void mvneta_mac_an_restart(struct net_device *ndev) +{ + struct mvneta_port *pp = netdev_priv(ndev); + u32 gmac_an = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, + gmac_an | MVNETA_GMAC_INBAND_RESTART_AN); + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, + gmac_an & ~MVNETA_GMAC_INBAND_RESTART_AN); +} + +static void mvneta_mac_config(struct net_device *ndev, unsigned int mode, + const struct phylink_link_state *state) +{ + struct mvneta_port *pp = netdev_priv(ndev); + u32 new_ctrl0, gmac_ctrl0 = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + u32 new_ctrl2, gmac_ctrl2 = mvreg_read(pp, MVNETA_GMAC_CTRL_2); + u32 new_clk, gmac_clk = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); + u32 new_an, gmac_an = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + + new_ctrl0 = gmac_ctrl0 & ~MVNETA_GMAC0_PORT_1000BASE_X; + new_ctrl2 = gmac_ctrl2 & ~MVNETA_GMAC2_INBAND_AN_ENABLE; + new_clk = gmac_clk & ~MVNETA_GMAC_1MS_CLOCK_ENABLE; + new_an = gmac_an & ~(MVNETA_GMAC_INBAND_AN_ENABLE | + MVNETA_GMAC_INBAND_RESTART_AN | + MVNETA_GMAC_CONFIG_MII_SPEED | + MVNETA_GMAC_CONFIG_GMII_SPEED | + MVNETA_GMAC_AN_SPEED_EN | + MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL | + MVNETA_GMAC_CONFIG_FLOW_CTRL | + MVNETA_GMAC_AN_FLOW_CTRL_EN | + MVNETA_GMAC_CONFIG_FULL_DUPLEX | + MVNETA_GMAC_AN_DUPLEX_EN); + + if (phylink_test(state->advertising, Pause)) + new_an |= MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL; + if (state->pause & MLO_PAUSE_TXRX_MASK) + new_an |= MVNETA_GMAC_CONFIG_FLOW_CTRL; + + if (!phylink_autoneg_inband(mode)) { + /* Phy or fixed speed */ + if (state->duplex) + new_an |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; + + if (state->speed == SPEED_1000) + new_an |= MVNETA_GMAC_CONFIG_GMII_SPEED; + else if (state->speed == SPEED_100) + new_an |= MVNETA_GMAC_CONFIG_MII_SPEED; + } else if (state->interface == PHY_INTERFACE_MODE_SGMII) { + /* SGMII mode receives the state from the PHY */ + new_ctrl2 |= MVNETA_GMAC2_INBAND_AN_ENABLE; + new_clk |= MVNETA_GMAC_1MS_CLOCK_ENABLE; + new_an = (new_an & ~(MVNETA_GMAC_FORCE_LINK_DOWN | + MVNETA_GMAC_FORCE_LINK_PASS)) | + MVNETA_GMAC_INBAND_AN_ENABLE | + MVNETA_GMAC_AN_SPEED_EN | + MVNETA_GMAC_AN_DUPLEX_EN; + } else { + /* 802.3z negotiation - only 1000base-X */ + new_ctrl0 |= MVNETA_GMAC0_PORT_1000BASE_X; + new_clk |= MVNETA_GMAC_1MS_CLOCK_ENABLE; + new_an = (new_an & ~(MVNETA_GMAC_FORCE_LINK_DOWN | + MVNETA_GMAC_FORCE_LINK_PASS)) | + MVNETA_GMAC_INBAND_AN_ENABLE | + MVNETA_GMAC_CONFIG_GMII_SPEED | + /* The MAC only supports FD mode */ + MVNETA_GMAC_CONFIG_FULL_DUPLEX; + + if (state->pause & MLO_PAUSE_AN && state->an_enabled) + new_an |= MVNETA_GMAC_AN_FLOW_CTRL_EN; + } + + /* Armada 370 documentation says we can only change the port mode + * and in-band enable when the link is down, so force it down + * while making these changes. We also do this for GMAC_CTRL2 */ + if ((new_ctrl0 ^ gmac_ctrl0) & MVNETA_GMAC0_PORT_1000BASE_X || + (new_ctrl2 ^ gmac_ctrl2) & MVNETA_GMAC2_INBAND_AN_ENABLE || + (new_an ^ gmac_an) & MVNETA_GMAC_INBAND_AN_ENABLE) { + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, + (gmac_an & ~MVNETA_GMAC_FORCE_LINK_PASS) | + MVNETA_GMAC_FORCE_LINK_DOWN); + } + + if (new_ctrl0 != gmac_ctrl0) + mvreg_write(pp, MVNETA_GMAC_CTRL_0, new_ctrl0); + if (new_ctrl2 != gmac_ctrl2) + mvreg_write(pp, MVNETA_GMAC_CTRL_2, new_ctrl2); + if (new_clk != gmac_clk) + mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, new_clk); + if (new_an != gmac_an) + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, new_an); +} + +static void mvneta_set_eee(struct mvneta_port *pp, bool enable) +{ + u32 lpi_ctl1; + + lpi_ctl1 = mvreg_read(pp, MVNETA_LPI_CTRL_1); + if (enable) + lpi_ctl1 |= MVNETA_LPI_REQUEST_ENABLE; + else + lpi_ctl1 &= ~MVNETA_LPI_REQUEST_ENABLE; + mvreg_write(pp, MVNETA_LPI_CTRL_1, lpi_ctl1); +} + +static void mvneta_mac_link_down(struct net_device *ndev, unsigned int mode) +{ + struct mvneta_port *pp = netdev_priv(ndev); + u32 val; + + mvneta_port_down(pp); + + if (!phylink_autoneg_inband(mode)) { + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_FORCE_LINK_PASS; + val |= MVNETA_GMAC_FORCE_LINK_DOWN; + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); } - if (phydev->link != pp->link) { - if (!phydev->link) { - pp->duplex = -1; - pp->speed = 0; - } + pp->eee_active = false; + mvneta_set_eee(pp, false); +} + +static void mvneta_mac_link_up(struct net_device *ndev, unsigned int mode, + struct phy_device *phy) +{ + struct mvneta_port *pp = netdev_priv(ndev); + u32 val; - pp->link = phydev->link; - status_change = 1; + if (!phylink_autoneg_inband(mode)) { + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_FORCE_LINK_DOWN; + val |= MVNETA_GMAC_FORCE_LINK_PASS; + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); } - if (status_change) { - if (phydev->link) { - if (!pp->use_inband_status) { - u32 val = mvreg_read(pp, - MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~MVNETA_GMAC_FORCE_LINK_DOWN; - val |= MVNETA_GMAC_FORCE_LINK_PASS; - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, - val); - } - mvneta_port_up(pp); - } else { - if (!pp->use_inband_status) { - u32 val = mvreg_read(pp, - MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~MVNETA_GMAC_FORCE_LINK_PASS; - val |= MVNETA_GMAC_FORCE_LINK_DOWN; - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, - val); - } - mvneta_port_down(pp); - } - phy_print_status(phydev); + mvneta_port_up(pp); + + if (phy && pp->eee_enabled) { + pp->eee_active = phy_init_eee(phy, 0) >= 0; + mvneta_set_eee(pp, pp->eee_active && pp->tx_lpi_enabled); } } +static const struct phylink_mac_ops mvneta_phylink_ops = { + .validate = mvneta_validate, + .mac_link_state = mvneta_mac_link_state, + .mac_an_restart = mvneta_mac_an_restart, + .mac_config = mvneta_mac_config, + .mac_link_down = mvneta_mac_link_down, + .mac_link_up = mvneta_mac_link_up, +}; + static int mvneta_mdio_probe(struct mvneta_port *pp) { - struct phy_device *phy_dev; struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; + int err = phylink_of_phy_connect(pp->phylink, pp->dn); + if (err) + netdev_err(pp->dev, "could not attach PHY\n"); - phy_dev = of_phy_connect(pp->dev, pp->phy_node, mvneta_adjust_link, 0, - pp->phy_interface); - if (!phy_dev) { - netdev_err(pp->dev, "could not find the PHY\n"); - return -ENODEV; - } - - phy_ethtool_get_wol(phy_dev, &wol); + phylink_ethtool_get_wol(pp->phylink, &wol); device_set_wakeup_capable(&pp->dev->dev, !!wol.supported); - phy_dev->supported &= PHY_GBIT_FEATURES; - phy_dev->advertising = phy_dev->supported; - - pp->link = 0; - pp->duplex = 0; - pp->speed = 0; - - return 0; + return err; } static void mvneta_mdio_remove(struct mvneta_port *pp) { - struct net_device *ndev = pp->dev; - - phy_disconnect(ndev->phydev); + phylink_disconnect_phy(pp->phylink); } /* Electing a CPU must be done in an atomic way: it should be done @@ -3626,10 +3712,9 @@ static int mvneta_stop(struct net_device static int mvneta_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { - if (!dev->phydev) - return -ENOTSUPP; + struct mvneta_port *pp = netdev_priv(dev); - return phy_mii_ioctl(dev->phydev, ifr, cmd); + return phylink_mii_ioctl(pp->phylink, ifr, cmd); } /* Ethtool methods */ @@ -3640,44 +3725,25 @@ mvneta_ethtool_set_link_ksettings(struct const struct ethtool_link_ksettings *cmd) { struct mvneta_port *pp = netdev_priv(ndev); - struct phy_device *phydev = ndev->phydev; - if (!phydev) - return -ENODEV; - - if ((cmd->base.autoneg == AUTONEG_ENABLE) != pp->use_inband_status) { - u32 val; - - mvneta_set_autoneg(pp, cmd->base.autoneg == AUTONEG_ENABLE); - - if (cmd->base.autoneg == AUTONEG_DISABLE) { - val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); - val &= ~(MVNETA_GMAC_CONFIG_MII_SPEED | - MVNETA_GMAC_CONFIG_GMII_SPEED | - MVNETA_GMAC_CONFIG_FULL_DUPLEX); - - if (phydev->duplex) - val |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; + return phylink_ethtool_ksettings_set(pp->phylink, cmd); +} - if (phydev->speed == SPEED_1000) - val |= MVNETA_GMAC_CONFIG_GMII_SPEED; - else if (phydev->speed == SPEED_100) - val |= MVNETA_GMAC_CONFIG_MII_SPEED; +/* Get link ksettings for ethtools */ +static int +mvneta_ethtool_get_link_ksettings(struct net_device *ndev, + struct ethtool_link_ksettings *cmd) +{ + struct mvneta_port *pp = netdev_priv(ndev); - mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); - } + return phylink_ethtool_ksettings_get(pp->phylink, cmd); +} - pp->use_inband_status = (cmd->base.autoneg == AUTONEG_ENABLE); - netdev_info(pp->dev, "autoneg status set to %i\n", - pp->use_inband_status); - - if (netif_running(ndev)) { - mvneta_port_down(pp); - mvneta_port_up(pp); - } - } +static int mvneta_ethtool_nway_reset(struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); - return phy_ethtool_ksettings_set(ndev->phydev, cmd); + return phylink_ethtool_nway_reset(pp->phylink); } /* Set interrupt coalescing for ethtools */ @@ -3769,6 +3835,22 @@ static int mvneta_ethtool_set_ringparam( return 0; } +static void mvneta_ethtool_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvneta_port *pp = netdev_priv(dev); + + phylink_ethtool_get_pauseparam(pp->phylink, pause); +} + +static int mvneta_ethtool_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvneta_port *pp = netdev_priv(dev); + + return phylink_ethtool_set_pauseparam(pp->phylink, pause); +} + static void mvneta_ethtool_get_strings(struct net_device *netdev, u32 sset, u8 *data) { @@ -3785,26 +3867,35 @@ static void mvneta_ethtool_update_stats( { const struct mvneta_statistic *s; void __iomem *base = pp->base; - u32 high, low, val; - u64 val64; + u32 high, low; + u64 val; int i; for (i = 0, s = mvneta_statistics; s < mvneta_statistics + ARRAY_SIZE(mvneta_statistics); s++, i++) { + val = 0; + switch (s->type) { case T_REG_32: val = readl_relaxed(base + s->offset); - pp->ethtool_stats[i] += val; break; case T_REG_64: /* Docs say to read low 32-bit then high */ low = readl_relaxed(base + s->offset); high = readl_relaxed(base + s->offset + 4); - val64 = (u64)high << 32 | low; - pp->ethtool_stats[i] += val64; + val = (u64)high << 32 | low; + break; + case T_SW: + switch (s->offset) { + case ETHTOOL_STAT_EEE_WAKEUP: + val = phylink_get_eee_err(pp->phylink); + break; + } break; } + + pp->ethtool_stats[i] += val; } } @@ -3939,28 +4030,65 @@ static int mvneta_ethtool_get_rxfh(struc static void mvneta_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { - wol->supported = 0; - wol->wolopts = 0; + struct mvneta_port *pp = netdev_priv(dev); - if (dev->phydev) - phy_ethtool_get_wol(dev->phydev, wol); + phylink_ethtool_get_wol(pp->phylink, wol); } static int mvneta_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { + struct mvneta_port *pp = netdev_priv(dev); int ret; - if (!dev->phydev) - return -EOPNOTSUPP; - - ret = phy_ethtool_set_wol(dev->phydev, wol); + ret = phylink_ethtool_set_wol(pp->phylink, wol); if (!ret) device_set_wakeup_enable(&dev->dev, !!wol->wolopts); return ret; } +static int mvneta_ethtool_get_eee(struct net_device *dev, + struct ethtool_eee *eee) +{ + struct mvneta_port *pp = netdev_priv(dev); + u32 lpi_ctl0; + + lpi_ctl0 = mvreg_read(pp, MVNETA_LPI_CTRL_0); + + eee->eee_enabled = pp->eee_enabled; + eee->eee_active = pp->eee_active; + eee->tx_lpi_enabled = pp->tx_lpi_enabled; + eee->tx_lpi_timer = (lpi_ctl0) >> 8; // * scale; + + return phylink_ethtool_get_eee(pp->phylink, eee); +} + +static int mvneta_ethtool_set_eee(struct net_device *dev, + struct ethtool_eee *eee) +{ + struct mvneta_port *pp = netdev_priv(dev); + u32 lpi_ctl0; + + /* The Armada 37x documents do not give limits for this other than + * it being an 8-bit register. */ + if (eee->tx_lpi_enabled && + (eee->tx_lpi_timer < 0 || eee->tx_lpi_timer > 255)) + return -EINVAL; + + lpi_ctl0 = mvreg_read(pp, MVNETA_LPI_CTRL_0); + lpi_ctl0 &= ~(0xff << 8); + lpi_ctl0 |= eee->tx_lpi_timer << 8; + mvreg_write(pp, MVNETA_LPI_CTRL_0, lpi_ctl0); + + pp->eee_enabled = eee->eee_enabled; + pp->tx_lpi_enabled = eee->tx_lpi_enabled; + + mvneta_set_eee(pp, eee->tx_lpi_enabled && eee->eee_enabled); + + return phylink_ethtool_set_eee(pp->phylink, eee); +} + static u16 mvneta_select_queue(struct net_device *dev, struct sk_buff *skb, void *accel_priv, select_queue_fallback_t fallback) @@ -3984,13 +4112,15 @@ static const struct net_device_ops mvnet }; static const struct ethtool_ops mvneta_eth_tool_ops = { - .nway_reset = phy_ethtool_nway_reset, + .nway_reset = mvneta_ethtool_nway_reset, .get_link = ethtool_op_get_link, .set_coalesce = mvneta_ethtool_set_coalesce, .get_coalesce = mvneta_ethtool_get_coalesce, .get_drvinfo = mvneta_ethtool_get_drvinfo, .get_ringparam = mvneta_ethtool_get_ringparam, .set_ringparam = mvneta_ethtool_set_ringparam, + .get_pauseparam = mvneta_ethtool_get_pauseparam, + .set_pauseparam = mvneta_ethtool_set_pauseparam, .get_strings = mvneta_ethtool_get_strings, .get_ethtool_stats = mvneta_ethtool_get_stats, .get_sset_count = mvneta_ethtool_get_sset_count, @@ -3998,10 +4128,12 @@ static const struct ethtool_ops mvneta_e .get_rxnfc = mvneta_ethtool_get_rxnfc, .get_rxfh = mvneta_ethtool_get_rxfh, .set_rxfh = mvneta_ethtool_set_rxfh, - .get_link_ksettings = phy_ethtool_get_link_ksettings, + .get_link_ksettings = mvneta_ethtool_get_link_ksettings, .set_link_ksettings = mvneta_ethtool_set_link_ksettings, .get_wol = mvneta_ethtool_get_wol, .set_wol = mvneta_ethtool_set_wol, + .get_eee = mvneta_ethtool_get_eee, + .set_eee = mvneta_ethtool_set_eee, }; /* Initialize hw */ @@ -4146,14 +4278,13 @@ static int mvneta_probe(struct platform_ { struct resource *res; struct device_node *dn = pdev->dev.of_node; - struct device_node *phy_node; struct device_node *bm_node; struct mvneta_port *pp; struct net_device *dev; + struct phylink *phylink; const char *dt_mac_addr; char hw_mac_addr[ETH_ALEN]; const char *mac_from; - const char *managed; int tx_csum_limit; int phy_mode; int err; @@ -4169,31 +4300,11 @@ static int mvneta_probe(struct platform_ goto err_free_netdev; } - phy_node = of_parse_phandle(dn, "phy", 0); - if (!phy_node) { - if (!of_phy_is_fixed_link(dn)) { - dev_err(&pdev->dev, "no PHY specified\n"); - err = -ENODEV; - goto err_free_irq; - } - - err = of_phy_register_fixed_link(dn); - if (err < 0) { - dev_err(&pdev->dev, "cannot register fixed PHY\n"); - goto err_free_irq; - } - - /* In the case of a fixed PHY, the DT node associated - * to the PHY is the Ethernet MAC DT node. - */ - phy_node = of_node_get(dn); - } - phy_mode = of_get_phy_mode(dn); if (phy_mode < 0) { dev_err(&pdev->dev, "incorrect phy-mode\n"); err = -EINVAL; - goto err_put_phy_node; + goto err_free_irq; } dev->tx_queue_len = MVNETA_MAX_TXD; @@ -4204,12 +4315,7 @@ static int mvneta_probe(struct platform_ pp = netdev_priv(dev); spin_lock_init(&pp->lock); - pp->phy_node = phy_node; - pp->phy_interface = phy_mode; - - err = of_property_read_string(dn, "managed", &managed); - pp->use_inband_status = (err == 0 && - strcmp(managed, "in-band-status") == 0); + pp->dn = dn; pp->rxq_def = rxq_def; @@ -4231,7 +4337,7 @@ static int mvneta_probe(struct platform_ pp->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(pp->clk)) { err = PTR_ERR(pp->clk); - goto err_put_phy_node; + goto err_free_irq; } clk_prepare_enable(pp->clk); @@ -4357,6 +4463,14 @@ static int mvneta_probe(struct platform_ /* 9676 == 9700 - 20 and rounding to 8 */ dev->max_mtu = 9676; + phylink = phylink_create(dev, dn, phy_mode, &mvneta_phylink_ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + goto err_free_stats; + } + + pp->phylink = phylink; + err = register_netdev(dev); if (err < 0) { dev_err(&pdev->dev, "failed to register\n"); @@ -4368,14 +4482,6 @@ static int mvneta_probe(struct platform_ platform_set_drvdata(pdev, pp->dev); - if (pp->use_inband_status) { - struct phy_device *phy = of_phy_find_device(dn); - - mvneta_fixed_link_update(pp, phy); - - put_device(&phy->mdio.dev); - } - return 0; err_netdev: @@ -4384,16 +4490,14 @@ err_netdev: mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short, 1 << pp->id); } + if (pp->phylink) + phylink_destroy(pp->phylink); free_percpu(pp->stats); err_free_ports: free_percpu(pp->ports); err_clk: clk_disable_unprepare(pp->clk_bus); clk_disable_unprepare(pp->clk); -err_put_phy_node: - of_node_put(phy_node); - if (of_phy_is_fixed_link(dn)) - of_phy_deregister_fixed_link(dn); err_free_irq: irq_dispose_mapping(dev->irq); err_free_netdev: @@ -4405,7 +4509,6 @@ err_free_netdev: static int mvneta_remove(struct platform_device *pdev) { struct net_device *dev = platform_get_drvdata(pdev); - struct device_node *dn = pdev->dev.of_node; struct mvneta_port *pp = netdev_priv(dev); unregister_netdev(dev); @@ -4413,10 +4516,8 @@ static int mvneta_remove(struct platform clk_disable_unprepare(pp->clk); free_percpu(pp->ports); free_percpu(pp->stats); - if (of_phy_is_fixed_link(dn)) - of_phy_deregister_fixed_link(dn); irq_dispose_mapping(dev->irq); - of_node_put(pp->phy_node); + phylink_destroy(pp->phylink); free_netdev(dev); if (pp->bm_priv) { @@ -4468,9 +4569,6 @@ static int mvneta_resume(struct device * return err; } - if (pp->use_inband_status) - mvneta_fixed_link_update(pp, dev->phydev); - netif_device_attach(dev); if (netif_running(dev)) { mvneta_open(dev);