forked from mirrors/linux
b7a2c1fe6b
Introduce support for standardized PHY statistics reporting in ethtool by extending the PHYLIB framework. Add the functions phy_ethtool_get_phy_stats() and phy_ethtool_get_link_ext_stats() to provide a consistent interface for retrieving PHY-level and link-specific statistics. These functions are used within the ethtool implementation to avoid direct access to the phy_device structure outside of the PHYLIB framework. A new structure, ethtool_phy_stats, is introduced to standardize PHY statistics such as packet counts, byte counts, and error counters. Drivers are updated to include callbacks for retrieving PHY and link-specific statistics, ensuring values are explicitly set only for supported fields, initialized with ETHTOOL_STAT_NOT_SET to avoid ambiguity. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Stubs for the Network PHY library
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*/
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#include <linux/rtnetlink.h>
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struct ethtool_eth_phy_stats;
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struct ethtool_link_ext_stats;
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struct ethtool_phy_stats;
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struct kernel_hwtstamp_config;
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struct netlink_ext_ack;
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struct phy_device;
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#if IS_ENABLED(CONFIG_PHYLIB)
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extern const struct phylib_stubs *phylib_stubs;
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struct phylib_stubs {
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int (*hwtstamp_get)(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config);
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int (*hwtstamp_set)(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config,
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struct netlink_ext_ack *extack);
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void (*get_phy_stats)(struct phy_device *phydev,
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struct ethtool_eth_phy_stats *phy_stats,
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struct ethtool_phy_stats *phydev_stats);
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void (*get_link_ext_stats)(struct phy_device *phydev,
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struct ethtool_link_ext_stats *link_stats);
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};
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static inline int phy_hwtstamp_get(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config)
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{
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/* phylib_register_stubs() and phylib_unregister_stubs()
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* also run under rtnl_lock().
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*/
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ASSERT_RTNL();
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if (!phylib_stubs)
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return -EOPNOTSUPP;
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return phylib_stubs->hwtstamp_get(phydev, config);
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}
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static inline int phy_hwtstamp_set(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config,
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struct netlink_ext_ack *extack)
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{
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/* phylib_register_stubs() and phylib_unregister_stubs()
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* also run under rtnl_lock().
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*/
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ASSERT_RTNL();
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if (!phylib_stubs)
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return -EOPNOTSUPP;
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return phylib_stubs->hwtstamp_set(phydev, config, extack);
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}
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static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev,
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struct ethtool_eth_phy_stats *phy_stats,
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struct ethtool_phy_stats *phydev_stats)
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{
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ASSERT_RTNL();
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if (!phylib_stubs)
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return;
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phylib_stubs->get_phy_stats(phydev, phy_stats, phydev_stats);
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}
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static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev,
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struct ethtool_link_ext_stats *link_stats)
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{
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ASSERT_RTNL();
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if (!phylib_stubs)
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return;
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phylib_stubs->get_link_ext_stats(phydev, link_stats);
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}
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#else
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static inline int phy_hwtstamp_get(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config)
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{
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return -EOPNOTSUPP;
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}
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static inline int phy_hwtstamp_set(struct phy_device *phydev,
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struct kernel_hwtstamp_config *config,
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struct netlink_ext_ack *extack)
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{
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return -EOPNOTSUPP;
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}
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static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev,
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struct ethtool_eth_phy_stats *phy_stats,
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struct ethtool_phy_stats *phydev_stats)
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{
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}
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static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev,
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struct ethtool_link_ext_stats *link_stats)
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{
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}
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#endif
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