diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.9/424-net-mvneta-add-flow-control-support-via-phylink.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.9/424-net-mvneta-add-flow-control-support-via-phylink.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.9/424-net-mvneta-add-flow-control-support-via-phylink.patch b/target/linux/mvebu/patches-4.9/424-net-mvneta-add-flow-control-support-via-phylink.patch new file mode 100644 index 0000000000..b46359ccc8 --- /dev/null +++ b/target/linux/mvebu/patches-4.9/424-net-mvneta-add-flow-control-support-via-phylink.patch @@ -0,0 +1,76 @@ +From: Russell King <rmk+kernel@arm.linux.org.uk> +Date: Thu, 1 Oct 2015 17:41:44 +0100 +Subject: [PATCH] net: mvneta: add flow control support via phylink + +Add flow control support to mvneta, including the ethtool hooks. This +uses the phylink code to calculate the result of autonegotiation where +a phy is attached, and to handle the ethtool settings. + +Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> +--- + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -3180,6 +3180,12 @@ static int mvneta_mac_link_state(struct + 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; + } + +@@ -3222,6 +3228,8 @@ static void mvneta_mac_config(struct net + + 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; + + switch (mode) { + case MLO_AN_SGMII: +@@ -3246,7 +3254,7 @@ static void mvneta_mac_config(struct net + /* The MAC only supports FD mode */ + MVNETA_GMAC_CONFIG_FULL_DUPLEX; + +- if (state->an_enabled) ++ if (state->pause & MLO_PAUSE_AN && state->an_enabled) + new_an |= MVNETA_GMAC_AN_FLOW_CTRL_EN; + break; + +@@ -3712,6 +3720,22 @@ 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) + { +@@ -3903,6 +3927,8 @@ const struct ethtool_ops mvneta_eth_tool + .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, |