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Message-Id: <20231214135029.383595-6-tobias@waldekranz.com>
Date: Thu, 14 Dec 2023 14:50:26 +0100
From: Tobias Waldekranz <tobias@...dekranz.com>
To: davem@...emloft.net,
	kuba@...nel.org
Cc: andrew@...n.ch,
	f.fainelli@...il.com,
	olteanv@...il.com,
	netdev@...r.kernel.org,
	Vladimir Oltean <vladimir.oltean@....com>,
	Florian Fainelli <florian.fainelli@...adcom.com>
Subject: [PATCH v4 net-next 5/8] net: dsa: mv88e6xxx: Add "eth-mac" counter group support

Report the applicable subset of an mv88e6xxx port's counters using
ethtool's standardized "eth-mac" counter group.

Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>
Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 39 ++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index c1cfe4f72868..627ed0d8be94 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1331,6 +1331,44 @@ static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port,
 	mv88e6xxx_get_stats(chip, port, data);
 }
 
+static void mv88e6xxx_get_eth_mac_stats(struct dsa_switch *ds, int port,
+					struct ethtool_eth_mac_stats *mac_stats)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+	int ret;
+
+	ret = mv88e6xxx_stats_snapshot(chip, port);
+	if (ret < 0)
+		return;
+
+#define MV88E6XXX_ETH_MAC_STAT_MAP(_id, _member)			\
+	mv88e6xxx_stats_get_stat(chip, port,				\
+				 &mv88e6xxx_hw_stats[MV88E6XXX_HW_STAT_ID_ ## _id], \
+				 &mac_stats->stats._member)
+
+	MV88E6XXX_ETH_MAC_STAT_MAP(out_unicast, FramesTransmittedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(single, SingleCollisionFrames);
+	MV88E6XXX_ETH_MAC_STAT_MAP(multiple, MultipleCollisionFrames);
+	MV88E6XXX_ETH_MAC_STAT_MAP(in_unicast, FramesReceivedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(in_fcs_error, FrameCheckSequenceErrors);
+	MV88E6XXX_ETH_MAC_STAT_MAP(out_octets, OctetsTransmittedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(deferred, FramesWithDeferredXmissions);
+	MV88E6XXX_ETH_MAC_STAT_MAP(late, LateCollisions);
+	MV88E6XXX_ETH_MAC_STAT_MAP(in_good_octets, OctetsReceivedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(out_multicasts, MulticastFramesXmittedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(out_broadcasts, BroadcastFramesXmittedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(excessive, FramesWithExcessiveDeferral);
+	MV88E6XXX_ETH_MAC_STAT_MAP(in_multicasts, MulticastFramesReceivedOK);
+	MV88E6XXX_ETH_MAC_STAT_MAP(in_broadcasts, BroadcastFramesReceivedOK);
+
+#undef MV88E6XXX_ETH_MAC_STAT_MAP
+
+	mac_stats->stats.FramesTransmittedOK += mac_stats->stats.MulticastFramesXmittedOK;
+	mac_stats->stats.FramesTransmittedOK += mac_stats->stats.BroadcastFramesXmittedOK;
+	mac_stats->stats.FramesReceivedOK += mac_stats->stats.MulticastFramesReceivedOK;
+	mac_stats->stats.FramesReceivedOK += mac_stats->stats.BroadcastFramesReceivedOK;
+}
+
 static int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
@@ -6852,6 +6890,7 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.phylink_mac_link_up	= mv88e6xxx_mac_link_up,
 	.get_strings		= mv88e6xxx_get_strings,
 	.get_ethtool_stats	= mv88e6xxx_get_ethtool_stats,
+	.get_eth_mac_stats	= mv88e6xxx_get_eth_mac_stats,
 	.get_sset_count		= mv88e6xxx_get_sset_count,
 	.port_max_mtu		= mv88e6xxx_get_max_mtu,
 	.port_change_mtu	= mv88e6xxx_change_mtu,
-- 
2.34.1


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