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Message-ID: <20230217110211.433505-5-rakesh.sankaranarayanan@microchip.com>
Date:   Fri, 17 Feb 2023 16:32:10 +0530
From:   Rakesh Sankaranarayanan <rakesh.sankaranarayanan@...rochip.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <woojung.huh@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <andrew@...n.ch>, <f.fainelli@...il.com>, <olteanv@...il.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>
Subject: [PATCH v2 net-next 4/5] net: dsa: microchip: add eth phy grouping for ethtool statistics

    Add support for ethtool standard device statistics grouping. Support
    ethernet phy statistics grouping using eth-phy groups parameter in
    ethtool command.

Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@...rochip.com>
---
 drivers/net/dsa/microchip/ksz_common.c  | 13 +++++++++
 drivers/net/dsa/microchip/ksz_common.h  |  2 ++
 drivers/net/dsa/microchip/ksz_ethtool.c | 36 +++++++++++++++++++++++++
 drivers/net/dsa/microchip/ksz_ethtool.h |  5 ++++
 4 files changed, 56 insertions(+)

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index e4a51f13afa4..01adcbeffaaa 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -208,6 +208,7 @@ static const struct ksz_dev_ops ksz8_dev_ops = {
 	.get_rmon_stats = ksz8_get_rmon_stats,
 	.get_eth_ctrl_stats = ksz8_get_eth_ctrl_stats,
 	.get_eth_mac_stats = ksz8_get_eth_mac_stats,
+	.get_eth_phy_stats = ksz8_get_eth_phy_stats,
 	.mdb_add = ksz8_mdb_add,
 	.mdb_del = ksz8_mdb_del,
 	.vlan_filtering = ksz8_port_vlan_filtering,
@@ -248,6 +249,7 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
 	.get_rmon_stats = ksz9477_get_rmon_stats,
 	.get_eth_ctrl_stats = ksz9477_get_eth_ctrl_stats,
 	.get_eth_mac_stats = ksz9477_get_eth_mac_stats,
+	.get_eth_phy_stats = ksz9477_get_eth_phy_stats,
 	.vlan_filtering = ksz9477_port_vlan_filtering,
 	.vlan_add = ksz9477_port_vlan_add,
 	.vlan_del = ksz9477_port_vlan_del,
@@ -287,6 +289,7 @@ static const struct ksz_dev_ops lan937x_dev_ops = {
 	.get_rmon_stats = ksz9477_get_rmon_stats,
 	.get_eth_ctrl_stats = ksz9477_get_eth_ctrl_stats,
 	.get_eth_mac_stats = ksz9477_get_eth_mac_stats,
+	.get_eth_phy_stats = ksz9477_get_eth_phy_stats,
 	.vlan_filtering = ksz9477_port_vlan_filtering,
 	.vlan_add = ksz9477_port_vlan_add,
 	.vlan_del = ksz9477_port_vlan_del,
@@ -1768,6 +1771,15 @@ static void ksz_get_eth_mac_stats(struct dsa_switch *ds, int port,
 		dev->dev_ops->get_eth_mac_stats(dev, port, mac_stats);
 }
 
+static void ksz_get_eth_phy_stats(struct dsa_switch *ds, int port,
+				  struct ethtool_eth_phy_stats *phy_stats)
+{
+	struct ksz_device *dev = ds->priv;
+
+	if (dev->dev_ops->get_eth_phy_stats)
+		dev->dev_ops->get_eth_phy_stats(dev, port, phy_stats);
+}
+
 static void ksz_get_strings(struct dsa_switch *ds, int port,
 			    u32 stringset, uint8_t *buf)
 {
@@ -3227,6 +3239,7 @@ static const struct dsa_switch_ops ksz_switch_ops = {
 	.get_rmon_stats		= ksz_get_rmon_stats,
 	.get_eth_ctrl_stats	= ksz_get_eth_ctrl_stats,
 	.get_eth_mac_stats	= ksz_get_eth_mac_stats,
+	.get_eth_phy_stats	= ksz_get_eth_phy_stats,
 	.port_change_mtu	= ksz_change_mtu,
 	.port_max_mtu		= ksz_max_mtu,
 	.get_ts_info		= ksz_get_ts_info,
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 738e81923c31..8a71e035b699 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -368,6 +368,8 @@ struct ksz_dev_ops {
 				   struct ethtool_eth_ctrl_stats *ctrl_stats);
 	void (*get_eth_mac_stats)(struct ksz_device *dev, int port,
 				  struct ethtool_eth_mac_stats *mac_stats);
+	void (*get_eth_phy_stats)(struct ksz_device *dev, int port,
+				  struct ethtool_eth_phy_stats *phy_stats);
 };
 
 struct ksz_device *ksz_switch_alloc(struct device *base, void *priv);
diff --git a/drivers/net/dsa/microchip/ksz_ethtool.c b/drivers/net/dsa/microchip/ksz_ethtool.c
index 42954bbfb9b4..c0b95d78e41e 100644
--- a/drivers/net/dsa/microchip/ksz_ethtool.c
+++ b/drivers/net/dsa/microchip/ksz_ethtool.c
@@ -204,6 +204,24 @@ void ksz8_get_eth_mac_stats(struct ksz_device *dev, int port,
 	mutex_unlock(&mib->cnt_mutex);
 }
 
+void ksz8_get_eth_phy_stats(struct ksz_device *dev, int port,
+			    struct ethtool_eth_phy_stats *phy_stats)
+{
+	struct ksz_port_mib *mib;
+	u64 *cnt;
+
+	mib = &dev->ports[port].mib;
+
+	mutex_lock(&mib->cnt_mutex);
+
+	cnt = &mib->counters[KSZ8_RX_SYMBOL_ERR];
+	dev->dev_ops->r_mib_pkt(dev, port, KSZ8_RX_SYMBOL_ERR, NULL, cnt);
+
+	phy_stats->SymbolErrorDuringCarrier = *cnt;
+
+	mutex_unlock(&mib->cnt_mutex);
+}
+
 void ksz9477_get_rmon_stats(struct ksz_device *dev, int port,
 			    struct ethtool_rmon_stats *rmon_stats,
 			    const struct ethtool_rmon_hist_range **ranges)
@@ -310,3 +328,21 @@ void ksz9477_get_eth_mac_stats(struct ksz_device *dev, int port,
 
 	mutex_unlock(&mib->cnt_mutex);
 }
+
+void ksz9477_get_eth_phy_stats(struct ksz_device *dev, int port,
+			       struct ethtool_eth_phy_stats *phy_stats)
+{
+	struct ksz_port_mib *mib;
+	u64 *cnt;
+
+	mib = &dev->ports[port].mib;
+
+	mutex_lock(&mib->cnt_mutex);
+
+	cnt = &mib->counters[KSZ9477_RX_SYMBOL_ERR];
+	dev->dev_ops->r_mib_pkt(dev, port, KSZ9477_RX_SYMBOL_ERR, NULL, cnt);
+
+	phy_stats->SymbolErrorDuringCarrier = *cnt;
+
+	mutex_unlock(&mib->cnt_mutex);
+}
diff --git a/drivers/net/dsa/microchip/ksz_ethtool.h b/drivers/net/dsa/microchip/ksz_ethtool.h
index 2dcfe8922b4e..042a0b38a899 100644
--- a/drivers/net/dsa/microchip/ksz_ethtool.h
+++ b/drivers/net/dsa/microchip/ksz_ethtool.h
@@ -15,6 +15,8 @@ void ksz8_get_eth_ctrl_stats(struct ksz_device *dev, int port,
 			     struct ethtool_eth_ctrl_stats *ctrl_stats);
 void ksz8_get_eth_mac_stats(struct ksz_device *dev, int port,
 			    struct ethtool_eth_mac_stats *mac_stats);
+void ksz8_get_eth_phy_stats(struct ksz_device *dev, int port,
+			    struct ethtool_eth_phy_stats *phy_stats);
 
 void ksz9477_get_rmon_stats(struct ksz_device *dev, int port,
 			    struct ethtool_rmon_stats *rmon_stats,
@@ -23,4 +25,7 @@ void ksz9477_get_eth_ctrl_stats(struct ksz_device *dev, int port,
 				struct ethtool_eth_ctrl_stats *ctrl_stats);
 void ksz9477_get_eth_mac_stats(struct ksz_device *dev, int port,
 			       struct ethtool_eth_mac_stats *mac_stats);
+void ksz9477_get_eth_phy_stats(struct ksz_device *dev, int port,
+			       struct ethtool_eth_phy_stats *phy_stats);
+
 #endif
-- 
2.34.1

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