diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2018-01-02 17:24:59 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-03 10:38:53 -0500 |
| commit | 4932a9187df3fab8adcd7b87fd11af722973b6fc (patch) | |
| tree | 32bd6b3969dae9ac35d633f26101a4cfe5c45bc0 /drivers/net/ethernet/marvell/mvneta.c | |
| parent | 22f4bf8aa929c31d927685d7dabda6400e1506f3 (diff) | |
| download | linux-4932a9187df3fab8adcd7b87fd11af722973b6fc.tar.bz2 | |
net: mvneta: add flow control support
Add support for flow control to mvneta.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/mvneta.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 73643dbd5cb0..0b8701d3ba38 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -3211,6 +3211,8 @@ static void mvneta_validate(struct net_device *ndev, unsigned long *supported, 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); @@ -3249,6 +3251,10 @@ static int mvneta_mac_link_state(struct net_device *ndev, 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; } @@ -3298,6 +3304,11 @@ static void mvneta_mac_config(struct net_device *ndev, unsigned int mode, phy_interface_mode_is_8023z(state->interface)) new_ctrl2 |= MVNETA_GMAC2_PCS_ENABLE; + 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) @@ -3326,6 +3337,9 @@ static void mvneta_mac_config(struct net_device *ndev, unsigned int mode, 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 @@ -3813,6 +3827,22 @@ static int mvneta_ethtool_set_ringparam(struct net_device *dev, 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) { @@ -4021,6 +4051,8 @@ static const struct ethtool_ops mvneta_eth_tool_ops = { .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, |