1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef _ETHTOOL_COMMON_H 4 #define _ETHTOOL_COMMON_H 5 6 #include <linux/netdevice.h> 7 #include <linux/ethtool.h> 8 9 #define ETHTOOL_DEV_FEATURE_WORDS DIV_ROUND_UP(NETDEV_FEATURE_COUNT, 32) 10 11 /* compose link mode index from speed, type and duplex */ 12 #define ETHTOOL_LINK_MODE(speed, type, duplex) \ 13 ETHTOOL_LINK_MODE_ ## speed ## base ## type ## _ ## duplex ## _BIT 14 15 #define __SOF_TIMESTAMPING_CNT (const_ilog2(SOF_TIMESTAMPING_LAST) + 1) 16 #define __HWTSTAMP_FLAG_CNT (const_ilog2(HWTSTAMP_FLAG_LAST) + 1) 17 18 struct genl_info; 19 struct hwtstamp_provider_desc; 20 21 extern const char 22 netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]; 23 extern const char 24 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN]; 25 extern const char 26 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN]; 27 extern const char 28 phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN]; 29 extern const char link_mode_names[][ETH_GSTRING_LEN]; 30 extern const char netif_msg_class_names[][ETH_GSTRING_LEN]; 31 extern const char wol_mode_names[][ETH_GSTRING_LEN]; 32 extern const char sof_timestamping_names[][ETH_GSTRING_LEN]; 33 extern const char ts_tx_type_names[][ETH_GSTRING_LEN]; 34 extern const char ts_rx_filter_names[][ETH_GSTRING_LEN]; 35 extern const char ts_flags_names[][ETH_GSTRING_LEN]; 36 extern const char udp_tunnel_type_names[][ETH_GSTRING_LEN]; 37 38 int __ethtool_get_link(struct net_device *dev); 39 40 bool convert_legacy_settings_to_link_ksettings( 41 struct ethtool_link_ksettings *link_ksettings, 42 const struct ethtool_cmd *legacy_settings); 43 int ethtool_check_max_channel(struct net_device *dev, 44 struct ethtool_channels channels, 45 struct genl_info *info); 46 struct ethtool_rxfh_context * 47 ethtool_rxfh_ctx_alloc(const struct ethtool_ops *ops, 48 u32 indir_size, u32 key_size); 49 int ethtool_check_rss_ctx_busy(struct net_device *dev, u32 rss_context); 50 int ethtool_rxfh_config_is_sym(u64 rxfh); 51 52 void ethtool_ringparam_get_cfg(struct net_device *dev, 53 struct ethtool_ringparam *param, 54 struct kernel_ethtool_ringparam *kparam, 55 struct netlink_ext_ack *extack); 56 57 int ethtool_get_rx_ring_count(struct net_device *dev); 58 59 int __ethtool_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info); 60 int ethtool_get_ts_info_by_phc(struct net_device *dev, 61 struct kernel_ethtool_ts_info *info, 62 struct hwtstamp_provider_desc *hwprov_desc); 63 int ethtool_net_get_ts_info_by_phc(struct net_device *dev, 64 struct kernel_ethtool_ts_info *info, 65 struct hwtstamp_provider_desc *hwprov_desc); 66 struct phy_device * 67 ethtool_phy_get_ts_info_by_phc(struct net_device *dev, 68 struct kernel_ethtool_ts_info *info, 69 struct hwtstamp_provider_desc *hwprov_desc); 70 bool net_support_hwtstamp_qualifier(struct net_device *dev, 71 enum hwtstamp_provider_qualifier qualifier); 72 73 extern const struct ethtool_phy_ops *ethtool_phy_ops; 74 extern const struct ethtool_pse_ops *ethtool_pse_ops; 75 76 int ethtool_get_module_info_call(struct net_device *dev, 77 struct ethtool_modinfo *modinfo); 78 int ethtool_get_module_eeprom_call(struct net_device *dev, 79 struct ethtool_eeprom *ee, u8 *data); 80 81 bool __ethtool_dev_mm_supported(struct net_device *dev); 82 83 /** 84 * ethtool_nl_msg_needs_rtnl() - does this Netlink cmd need rtnl_lock? 85 * @dev: target device 86 * @cmd: ETHTOOL_MSG_* Netlink command value 87 * 88 * Return: true if @cmd is a command for which @dev has opted-in to 89 * keeping rtnl_lock held across the call (via op_needs_rtnl). 90 */ 91 static inline bool 92 ethtool_nl_msg_needs_rtnl(const struct net_device *dev, u8 cmd) 93 { 94 const struct ethtool_ops *ops = dev->ethtool_ops; 95 96 switch (cmd) { 97 case ETHTOOL_MSG_LINKINFO_GET: 98 case ETHTOOL_MSG_LINKMODES_GET: 99 return ops->op_needs_rtnl & ETHTOOL_OP_NEEDS_RTNL_LINKSETTINGS; 100 case ETHTOOL_MSG_PAUSE_GET: 101 return ops->op_needs_rtnl & ETHTOOL_OP_NEEDS_RTNL_GPAUSEPARAM; 102 } 103 return false; 104 } 105 106 /** 107 * ethtool_ioctl_needs_rtnl() - does this legacy ioctl cmd need rtnl_lock? 108 * @dev: target device 109 * @ethcmd: ETHTOOL_* ioctl command value 110 * 111 * Return: true if @ethcmd is a command for which @dev has opted-in to 112 * keeping rtnl_lock held across the call (via op_needs_rtnl). 113 */ 114 static inline bool 115 ethtool_ioctl_needs_rtnl(const struct net_device *dev, u32 ethcmd) 116 { 117 const struct ethtool_ops *ops = dev->ethtool_ops; 118 119 switch (ethcmd) { 120 case ETHTOOL_GLINKSETTINGS: 121 case ETHTOOL_GSET: 122 return ops->op_needs_rtnl & ETHTOOL_OP_NEEDS_RTNL_LINKSETTINGS; 123 case ETHTOOL_GPAUSEPARAM: 124 return ops->op_needs_rtnl & ETHTOOL_OP_NEEDS_RTNL_GPAUSEPARAM; 125 } 126 return false; 127 } 128 129 #if IS_ENABLED(CONFIG_ETHTOOL_NETLINK) 130 void ethtool_rss_notify(struct net_device *dev, u32 type, u32 rss_context); 131 #else 132 static inline void 133 ethtool_rss_notify(struct net_device *dev, u32 type, u32 rss_context) 134 { 135 } 136 #endif 137 138 #endif /* _ETHTOOL_COMMON_H */ 139