linux-kernel - [PATCH net-next 1/3] net: phy: Add pluming for ethtool_{get,set}

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Date:   Tue, 16 May 2023 16:17:11 -0700
From:   Florian Fainelli <florian.fainelli@...adcom.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <florian.fainelli@...adcom.com>,
        Doug Berger <opendmb@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 1/3] net: phy: Add pluming for ethtool_{get,set}_rxnfc

Ethernet MAC drivers supporting Wake-on-LAN using programmable filters
(WAKE_FILTER) typically configure such programmable filters using the
ethtool::set_rxnfc API and with a sepcial RX_CLS_FLOW_WAKE to indicate
the filter is also wake-up capable.

In order to offer the same functionality for capable Ethernet PHY
drivers, wire-up the ethtool::{get,set}_rxnfc APIs within the PHY
library.

Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 drivers/net/phy/phy.c | 19 +++++++++++++++++++
 include/linux/phy.h   |  8 ++++++++
 2 files changed, 27 insertions(+)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 0c0df38cd1ab..15c03fb5aab4 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1683,3 +1683,22 @@ int phy_ethtool_nway_reset(struct net_device *ndev)
 	return ret;
 }
 EXPORT_SYMBOL(phy_ethtool_nway_reset);
+
+int phy_ethtool_get_rxnfc(struct phy_device *phydev,
+			  struct ethtool_rxnfc *nfc, u32 *rule_locs)
+{
+	if (phydev->drv && phydev->drv->get_rxnfc)
+		return phydev->drv->get_rxnfc(phydev, nfc, rule_locs);
+
+	return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(phy_ethtool_get_rxnfc);
+
+int phy_ethtool_set_rxnfc(struct phy_device *phydev, struct ethtool_rxnfc *nfc)
+{
+	if (phydev->drv && phydev->drv->set_rxnfc)
+		return phydev->drv->set_rxnfc(phydev, nfc);
+
+	return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(phy_ethtool_set_rxnfc);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index e0df8b3c2bdb..3de9ac620088 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1069,6 +1069,10 @@ struct phy_driver {
 	int (*get_sqi)(struct phy_device *dev);
 	/** @get_sqi_max: Get the maximum signal quality indication */
 	int (*get_sqi_max)(struct phy_device *dev);
+	/* Used for WAKE_FILTER programming only */
+	int (*get_rxnfc)(struct phy_device *dev,
+			 struct ethtool_rxnfc *nfc, u32 *rule_locs);
+	int (*set_rxnfc)(struct phy_device *dev, struct ethtool_rxnfc *nfc);
 
 	/* PLCA RS interface */
 	/** @get_plca_cfg: Return the current PLCA configuration */
@@ -1920,6 +1924,10 @@ int phy_ethtool_set_plca_cfg(struct phy_device *phydev,
 			     struct netlink_ext_ack *extack);
 int phy_ethtool_get_plca_status(struct phy_device *phydev,
 				struct phy_plca_status *plca_st);
+int phy_ethtool_get_rxnfc(struct phy_device *phydev,
+			  struct ethtool_rxnfc *nfc, u32 *rule_locs);
+int phy_ethtool_set_rxnfc(struct phy_device *phydev,
+			  struct ethtool_rxnfc *nfc);
 
 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
 {
-- 
2.34.1


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