From fc0e6db30941a66e284b8516b82356f97f31061d Mon Sep 17 00:00:00 2001 From: "Kory Maincent (Dent Project)" Date: Tue, 17 Jun 2025 14:12:01 +0200 Subject: net: pse-pd: Add support for reporting events Add support for devm_pse_irq_helper() to register PSE interrupts and report events such as over-current or over-temperature conditions. This follows a similar approach to the regulator API but also sends notifications using a dedicated PSE ethtool netlink socket. Signed-off-by: Kory Maincent (Dent Project) Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-2-78a1a645e2ee@bootlin.com Signed-off-by: Jakub Kicinski --- include/linux/ethtool_netlink.h | 7 +++++++ include/linux/pse-pd/pse.h | 20 ++++++++++++++++++++ 2 files changed, 27 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ethtool_netlink.h b/include/linux/ethtool_netlink.h index aba91335273a..1dcc4059b5ab 100644 --- a/include/linux/ethtool_netlink.h +++ b/include/linux/ethtool_netlink.h @@ -43,6 +43,8 @@ void ethtool_aggregate_rmon_stats(struct net_device *dev, struct ethtool_rmon_stats *rmon_stats); bool ethtool_dev_mm_supported(struct net_device *dev); +void ethnl_pse_send_ntf(struct net_device *netdev, unsigned long notif); + #else static inline int ethnl_cable_test_alloc(struct phy_device *phydev, u8 cmd) { @@ -120,6 +122,11 @@ static inline bool ethtool_dev_mm_supported(struct net_device *dev) return false; } +static inline void ethnl_pse_send_ntf(struct phy_device *phydev, + unsigned long notif) +{ +} + #endif /* IS_ENABLED(CONFIG_ETHTOOL_NETLINK) */ static inline int ethnl_cable_test_result(struct phy_device *phydev, u8 pair, diff --git a/include/linux/pse-pd/pse.h b/include/linux/pse-pd/pse.h index 8b0866fad2ad..6eb064722aa8 100644 --- a/include/linux/pse-pd/pse.h +++ b/include/linux/pse-pd/pse.h @@ -7,12 +7,15 @@ #include #include +#include +#include /* Maximum current in uA according to IEEE 802.3-2022 Table 145-1 */ #define MAX_PI_CURRENT 1920000 /* Maximum power in mW according to IEEE 802.3-2022 Table 145-16 */ #define MAX_PI_PW 99900 +struct net_device; struct phy_device; struct pse_controller_dev; struct netlink_ext_ack; @@ -37,6 +40,19 @@ struct ethtool_c33_pse_pw_limit_range { u32 max; }; +/** + * struct pse_irq_desc - notification sender description for IRQ based events. + * + * @name: the visible name for the IRQ + * @map_event: driver callback to map IRQ status into PSE devices with events. + */ +struct pse_irq_desc { + const char *name; + int (*map_event)(int irq, struct pse_controller_dev *pcdev, + unsigned long *notifs, + unsigned long *notifs_mask); +}; + /** * struct pse_control_config - PSE control/channel configuration. * @@ -228,6 +244,7 @@ struct pse_pi { * @types: types of the PSE controller * @pi: table of PSE PIs described in this controller device * @no_of_pse_pi: flag set if the pse_pis devicetree node is not used + * @irq: PSE interrupt */ struct pse_controller_dev { const struct pse_controller_ops *ops; @@ -241,6 +258,7 @@ struct pse_controller_dev { enum ethtool_pse_types types; struct pse_pi *pi; bool no_of_pse_pi; + int irq; }; #if IS_ENABLED(CONFIG_PSE_CONTROLLER) @@ -249,6 +267,8 @@ void pse_controller_unregister(struct pse_controller_dev *pcdev); struct device; int devm_pse_controller_register(struct device *dev, struct pse_controller_dev *pcdev); +int devm_pse_irq_helper(struct pse_controller_dev *pcdev, int irq, + int irq_flags, const struct pse_irq_desc *d); struct pse_control *of_pse_control_get(struct device_node *node, struct phy_device *phydev); -- cgit v1.2.3