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-rw-r--r--drivers/net/phy/icplus.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c
index f98edd66cdd2..41bd0fa2ce17 100644
--- a/drivers/net/phy/icplus.c
+++ b/drivers/net/phy/icplus.c
@@ -51,6 +51,12 @@ MODULE_LICENSE("GPL");
 
 #define IP101G_DEFAULT_PAGE			16
 
+#define IP101G_P1_CNT_CTRL		17
+#define CNT_CTRL_RX_EN			BIT(13)
+#define IP101G_P8_CNT_CTRL		17
+#define CNT_CTRL_RDCLR_EN		BIT(15)
+#define IP101G_CNT_REG			18
+
 #define IP175C_PHY_ID 0x02430d80
 #define IP1001_PHY_ID 0x02430d90
 #define IP101A_PHY_ID 0x02430c54
@@ -65,8 +71,19 @@ enum ip101gr_sel_intr32 {
 	IP101GR_SEL_INTR32_RXER,
 };
 
+struct ip101g_hw_stat {
+	const char *name;
+	int page;
+};
+
+static struct ip101g_hw_stat ip101g_hw_stats[] = {
+	{ "phy_crc_errors", 1 },
+	{ "phy_symbol_errors", 11, },
+};
+
 struct ip101a_g_phy_priv {
 	enum ip101gr_sel_intr32 sel_intr32;
+	u64 stats[ARRAY_SIZE(ip101g_hw_stats)];
 };
 
 static int ip175c_config_init(struct phy_device *phydev)
@@ -265,6 +282,20 @@ static int ip101a_config_init(struct phy_device *phydev)
 
 static int ip101g_config_init(struct phy_device *phydev)
 {
+	int ret;
+
+	/* Enable the PHY counters */
+	ret = phy_modify_paged(phydev, 1, IP101G_P1_CNT_CTRL,
+			       CNT_CTRL_RX_EN, CNT_CTRL_RX_EN);
+	if (ret)
+		return ret;
+
+	/* Clear error counters on read */
+	ret = phy_modify_paged(phydev, 8, IP101G_P8_CNT_CTRL,
+			       CNT_CTRL_RDCLR_EN, CNT_CTRL_RDCLR_EN);
+	if (ret)
+		return ret;
+
 	return ip101a_g_config_intr_pin(phydev);
 }
 
@@ -405,6 +436,47 @@ static int ip101g_match_phy_device(struct phy_device *phydev)
 	return ip101a_g_match_phy_device(phydev, false);
 }
 
+static int ip101g_get_sset_count(struct phy_device *phydev)
+{
+	return ARRAY_SIZE(ip101g_hw_stats);
+}
+
+static void ip101g_get_strings(struct phy_device *phydev, u8 *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ip101g_hw_stats); i++)
+		strscpy(data + i * ETH_GSTRING_LEN,
+			ip101g_hw_stats[i].name, ETH_GSTRING_LEN);
+}
+
+static u64 ip101g_get_stat(struct phy_device *phydev, int i)
+{
+	struct ip101g_hw_stat stat = ip101g_hw_stats[i];
+	struct ip101a_g_phy_priv *priv = phydev->priv;
+	int val;
+	u64 ret;
+
+	val = phy_read_paged(phydev, stat.page, IP101G_CNT_REG);
+	if (val < 0) {
+		ret = U64_MAX;
+	} else {
+		priv->stats[i] += val;
+		ret = priv->stats[i];
+	}
+
+	return ret;
+}
+
+static void ip101g_get_stats(struct phy_device *phydev,
+			     struct ethtool_stats *stats, u64 *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ip101g_hw_stats); i++)
+		data[i] = ip101g_get_stat(phydev, i);
+}
+
 static struct phy_driver icplus_driver[] = {
 {
 	PHY_ID_MATCH_MODEL(IP175C_PHY_ID),
@@ -445,6 +517,9 @@ static struct phy_driver icplus_driver[] = {
 	.handle_interrupt = ip101a_g_handle_interrupt,
 	.config_init	= ip101g_config_init,
 	.soft_reset	= genphy_soft_reset,
+	.get_sset_count = ip101g_get_sset_count,
+	.get_strings	= ip101g_get_strings,
+	.get_stats	= ip101g_get_stats,
 	.suspend	= genphy_suspend,
 	.resume		= genphy_resume,
 } };