net: dsa: ksz9477: move get_stats64 to ksz_common.c

The mib counters for the ksz9477 is same for the ksz9477 switch and
LAN937x switch. Hence moving it to ksz_common.c file in order to have it
generic function. The DSA hook get_stats64 now can call ksz_get_stats64.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20220426091048.9311-1-arun.ramadoss@microchip.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/dsa/microchip/ksz9477.c

@@ -65,100 +65,6 @@ static const struct {
 	{ 0x83, "tx_discards" },
 };
 
-struct ksz9477_stats_raw {
-	u64 rx_hi;
-	u64 rx_undersize;
-	u64 rx_fragments;
-	u64 rx_oversize;
-	u64 rx_jabbers;
-	u64 rx_symbol_err;
-	u64 rx_crc_err;
-	u64 rx_align_err;
-	u64 rx_mac_ctrl;
-	u64 rx_pause;
-	u64 rx_bcast;
-	u64 rx_mcast;
-	u64 rx_ucast;
-	u64 rx_64_or_less;
-	u64 rx_65_127;
-	u64 rx_128_255;
-	u64 rx_256_511;
-	u64 rx_512_1023;
-	u64 rx_1024_1522;
-	u64 rx_1523_2000;
-	u64 rx_2001;
-	u64 tx_hi;
-	u64 tx_late_col;
-	u64 tx_pause;
-	u64 tx_bcast;
-	u64 tx_mcast;
-	u64 tx_ucast;
-	u64 tx_deferred;
-	u64 tx_total_col;
-	u64 tx_exc_col;
-	u64 tx_single_col;
-	u64 tx_mult_col;
-	u64 rx_total;
-	u64 tx_total;
-	u64 rx_discards;
-	u64 tx_discards;
-};
-
-static void ksz9477_r_mib_stats64(struct ksz_device *dev, int port)
-{
-	struct rtnl_link_stats64 *stats;
-	struct ksz9477_stats_raw *raw;
-	struct ksz_port_mib *mib;
-
-	mib = &dev->ports[port].mib;
-	stats = &mib->stats64;
-	raw = (struct ksz9477_stats_raw *)mib->counters;
-
-	spin_lock(&mib->stats64_lock);
-
-	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast;
-	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast;
-
-	/* HW counters are counting bytes + FCS which is not acceptable
-	 * for rtnl_link_stats64 interface
-	 */
-	stats->rx_bytes = raw->rx_total - stats->rx_packets * ETH_FCS_LEN;
-	stats->tx_bytes = raw->tx_total - stats->tx_packets * ETH_FCS_LEN;
-
-	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
-		raw->rx_oversize;
-
-	stats->rx_crc_errors = raw->rx_crc_err;
-	stats->rx_frame_errors = raw->rx_align_err;
-	stats->rx_dropped = raw->rx_discards;
-	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
-		stats->rx_frame_errors  + stats->rx_dropped;
-
-	stats->tx_window_errors = raw->tx_late_col;
-	stats->tx_fifo_errors = raw->tx_discards;
-	stats->tx_aborted_errors = raw->tx_exc_col;
-	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
-		stats->tx_aborted_errors;
-
-	stats->multicast = raw->rx_mcast;
-	stats->collisions = raw->tx_total_col;
-
-	spin_unlock(&mib->stats64_lock);
-}
-
-static void ksz9477_get_stats64(struct dsa_switch *ds, int port,
-			       struct rtnl_link_stats64 *s)
-{
-	struct ksz_device *dev = ds->priv;
-	struct ksz_port_mib *mib;
-
-	mib = &dev->ports[port].mib;
-
-	spin_lock(&mib->stats64_lock);
-	memcpy(s, &mib->stats64, sizeof(*s));
-	spin_unlock(&mib->stats64_lock);
-}
-
 static void ksz_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set)
 {
 	regmap_update_bits(dev->regmap[0], addr, bits, set ? bits : 0);
@@ -1462,7 +1368,7 @@ static const struct dsa_switch_ops ksz9477_switch_ops = {
 	.port_mdb_del           = ksz9477_port_mdb_del,
 	.port_mirror_add	= ksz9477_port_mirror_add,
 	.port_mirror_del	= ksz9477_port_mirror_del,
-	.get_stats64		= ksz9477_get_stats64,
+	.get_stats64		= ksz_get_stats64,
 	.port_change_mtu	= ksz9477_change_mtu,
 	.port_max_mtu		= ksz9477_max_mtu,
 };
@@ -1653,7 +1559,7 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
 	.port_setup = ksz9477_port_setup,
 	.r_mib_cnt = ksz9477_r_mib_cnt,
 	.r_mib_pkt = ksz9477_r_mib_pkt,
-	.r_mib_stat64 = ksz9477_r_mib_stats64,
+	.r_mib_stat64 = ksz_r_mib_stats64,
 	.freeze_mib = ksz9477_freeze_mib,
 	.port_init_cnt = ksz9477_port_init_cnt,
 	.shutdown = ksz9477_reset_switch,

drivers/net/dsa/microchip/ksz_common.c

@@ -20,6 +20,102 @@
 
 #include "ksz_common.h"
 
+struct ksz_stats_raw {
+	u64 rx_hi;
+	u64 rx_undersize;
+	u64 rx_fragments;
+	u64 rx_oversize;
+	u64 rx_jabbers;
+	u64 rx_symbol_err;
+	u64 rx_crc_err;
+	u64 rx_align_err;
+	u64 rx_mac_ctrl;
+	u64 rx_pause;
+	u64 rx_bcast;
+	u64 rx_mcast;
+	u64 rx_ucast;
+	u64 rx_64_or_less;
+	u64 rx_65_127;
+	u64 rx_128_255;
+	u64 rx_256_511;
+	u64 rx_512_1023;
+	u64 rx_1024_1522;
+	u64 rx_1523_2000;
+	u64 rx_2001;
+	u64 tx_hi;
+	u64 tx_late_col;
+	u64 tx_pause;
+	u64 tx_bcast;
+	u64 tx_mcast;
+	u64 tx_ucast;
+	u64 tx_deferred;
+	u64 tx_total_col;
+	u64 tx_exc_col;
+	u64 tx_single_col;
+	u64 tx_mult_col;
+	u64 rx_total;
+	u64 tx_total;
+	u64 rx_discards;
+	u64 tx_discards;
+};
+
+void ksz_r_mib_stats64(struct ksz_device *dev, int port)
+{
+	struct rtnl_link_stats64 *stats;
+	struct ksz_stats_raw *raw;
+	struct ksz_port_mib *mib;
+
+	mib = &dev->ports[port].mib;
+	stats = &mib->stats64;
+	raw = (struct ksz_stats_raw *)mib->counters;
+
+	spin_lock(&mib->stats64_lock);
+
+	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast;
+	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast;
+
+	/* HW counters are counting bytes + FCS which is not acceptable
+	 * for rtnl_link_stats64 interface
+	 */
+	stats->rx_bytes = raw->rx_total - stats->rx_packets * ETH_FCS_LEN;
+	stats->tx_bytes = raw->tx_total - stats->tx_packets * ETH_FCS_LEN;
+
+	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
+		raw->rx_oversize;
+
+	stats->rx_crc_errors = raw->rx_crc_err;
+	stats->rx_frame_errors = raw->rx_align_err;
+	stats->rx_dropped = raw->rx_discards;
+	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
+		stats->rx_frame_errors  + stats->rx_dropped;
+
+	stats->tx_window_errors = raw->tx_late_col;
+	stats->tx_fifo_errors = raw->tx_discards;
+	stats->tx_aborted_errors = raw->tx_exc_col;
+	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
+		stats->tx_aborted_errors;
+
+	stats->multicast = raw->rx_mcast;
+	stats->collisions = raw->tx_total_col;
+
+	spin_unlock(&mib->stats64_lock);
+}
+EXPORT_SYMBOL_GPL(ksz_r_mib_stats64);
+
+void ksz_get_stats64(struct dsa_switch *ds, int port,
+		     struct rtnl_link_stats64 *s)
+{
+	struct ksz_device *dev = ds->priv;
+	struct ksz_port_mib *mib;
+
+	mib = &dev->ports[port].mib;
+
+	spin_lock(&mib->stats64_lock);
+	memcpy(s, &mib->stats64, sizeof(*s));
+	spin_unlock(&mib->stats64_lock);
+}
+EXPORT_SYMBOL_GPL(ksz_get_stats64);
+
 void ksz_update_port_member(struct ksz_device *dev, int port)
 {
 	struct ksz_port *p = &dev->ports[port];

drivers/net/dsa/microchip/ksz_common.h

@@ -151,6 +151,9 @@ int ksz9477_switch_register(struct ksz_device *dev);
 
 void ksz_update_port_member(struct ksz_device *dev, int port);
 void ksz_init_mib_timer(struct ksz_device *dev);
+void ksz_r_mib_stats64(struct ksz_device *dev, int port);
+void ksz_get_stats64(struct dsa_switch *ds, int port,
+		     struct rtnl_link_stats64 *s);
 
 /* Common DSA access functions */