From b23ce9e8b3d6e862ad2f7f818802ae4958550a51 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 29 Nov 2016 09:57:18 -0800 Subject: [PATCH] net: phy: bcm7xxx: Plug in support for reading PHY error counters Broadcom BCM7xxx internal PHYs can leverage the Broadcom PHY library module PHY error counters helper functions, just implement the appropriate PHY driver function calls to do so. We need to allocate some storage space for our PHY statistics, and provide it to the Broadcom PHY library, so do this in a specific probe function, and slightly wrap the get_stats function call. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/bcm7xxx.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c index 5b3be4c67be8..aae00bde5980 100644 --- a/drivers/net/phy/bcm7xxx.c +++ b/drivers/net/phy/bcm7xxx.c @@ -45,6 +45,10 @@ #define AFE_VDAC_OTHERS_0 MISC_ADDR(0x39, 3) #define AFE_HPF_TRIM_OTHERS MISC_ADDR(0x3a, 0) +struct bcm7xxx_phy_priv { + u64 *stats; +}; + static void r_rc_cal_reset(struct phy_device *phydev) { /* Reset R_CAL/RC_CAL Engine */ @@ -350,6 +354,33 @@ static int bcm7xxx_28nm_set_tunable(struct phy_device *phydev, return genphy_restart_aneg(phydev); } +static void bcm7xxx_28nm_get_phy_stats(struct phy_device *phydev, + struct ethtool_stats *stats, u64 *data) +{ + struct bcm7xxx_phy_priv *priv = phydev->priv; + + bcm_phy_get_stats(phydev, priv->stats, stats, data); +} + +static int bcm7xxx_28nm_probe(struct phy_device *phydev) +{ + struct bcm7xxx_phy_priv *priv; + + priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + phydev->priv = priv; + + priv->stats = devm_kcalloc(&phydev->mdio.dev, + bcm_phy_get_sset_count(phydev), sizeof(u64), + GFP_KERNEL); + if (!priv->stats) + return -ENOMEM; + + return 0; +} + #define BCM7XXX_28NM_GPHY(_oui, _name) \ { \ .phy_id = (_oui), \ @@ -364,6 +395,10 @@ static int bcm7xxx_28nm_set_tunable(struct phy_device *phydev, .resume = bcm7xxx_28nm_resume, \ .get_tunable = bcm7xxx_28nm_get_tunable, \ .set_tunable = bcm7xxx_28nm_set_tunable, \ + .get_sset_count = bcm_phy_get_sset_count, \ + .get_strings = bcm_phy_get_strings, \ + .get_stats = bcm7xxx_28nm_get_phy_stats, \ + .probe = bcm7xxx_28nm_probe, \ } #define BCM7XXX_40NM_EPHY(_oui, _name) \ -- 2.39.5