linux-kernel - [PATCH net-next v1 1/3] net: dsa: add get_pause

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Message-Id: <20220624125902.4068436-1-o.rempel@pengutronix.de>
Date:   Fri, 24 Jun 2022 14:59:00 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Woojung Huh <woojung.huh@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Lukas Wunner <lukas@...ner.de>, UNGLinuxDriver@...rochip.com
Subject: [PATCH net-next v1 1/3] net: dsa: add get_pause_stats support

Add support for pause stats

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 include/net/dsa.h |  2 ++
 net/dsa/slave.c   | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 14f07275852b..c8d7696cb2bf 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -890,6 +890,8 @@ struct dsa_switch_ops {
 				      struct ethtool_eth_ctrl_stats *ctrl_stats);
 	void	(*get_stats64)(struct dsa_switch *ds, int port,
 				   struct rtnl_link_stats64 *s);
+	void	(*get_pause_stats)(struct dsa_switch *ds, int port,
+				   struct ethtool_pause_stats *pause_stats);
 	void	(*self_test)(struct dsa_switch *ds, int port,
 			     struct ethtool_test *etest, u64 *data);
 
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2e1ac638d135..b2710ee46644 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1097,6 +1097,16 @@ static int dsa_slave_set_link_ksettings(struct net_device *dev,
 	return phylink_ethtool_ksettings_set(dp->pl, cmd);
 }
 
+static void dsa_slave_get_pause_stats(struct net_device *dev,
+				  struct ethtool_pause_stats *pause_stats)
+{
+	struct dsa_port *dp = dsa_slave_to_port(dev);
+	struct dsa_switch *ds = dp->ds;
+
+	if (ds->ops->get_pause_stats)
+		ds->ops->get_pause_stats(ds, dp->index, pause_stats);
+}
+
 static void dsa_slave_get_pauseparam(struct net_device *dev,
 				     struct ethtool_pauseparam *pause)
 {
@@ -2087,6 +2097,7 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
 	.get_eee		= dsa_slave_get_eee,
 	.get_link_ksettings	= dsa_slave_get_link_ksettings,
 	.set_link_ksettings	= dsa_slave_set_link_ksettings,
+	.get_pause_stats	= dsa_slave_get_pause_stats,
 	.get_pauseparam		= dsa_slave_get_pauseparam,
 	.set_pauseparam		= dsa_slave_set_pauseparam,
 	.get_rxnfc		= dsa_slave_get_rxnfc,
-- 
2.30.2