diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 5a09a48f2658a64f7149ecddd30abd56c65cf69f..c26d0ec2ef3a90b7a988da8c31f9667716c78392 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -63,6 +63,7 @@ enum { NETIF_F_HW_VLAN_STAG_RX_BIT, /* Receive VLAN STAG HW acceleration */ NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */ NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ + NETIF_F_BUSY_POLL_BIT, /* Busy poll */ /* * Add your fresh new feature above and remember to update @@ -118,6 +119,7 @@ enum { #define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX) #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) +#define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL) /* Features valid for ethtool to change */ /* = all defined minus driver/device-class-related */ diff --git a/net/core/dev.c b/net/core/dev.c index 757063420ce0f2144d90fc6eeb67f0c44ef57126..75e88e0372cbc727232d029702b2f43e8f499d4f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5696,6 +5696,13 @@ static netdev_features_t netdev_fix_features(struct net_device *dev, } } +#ifdef CONFIG_NET_RX_BUSY_POLL + if (dev->netdev_ops->ndo_busy_poll) + features |= NETIF_F_BUSY_POLL; + else +#endif + features &= ~NETIF_F_BUSY_POLL; + return features; } diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 30071dec287a4674b64ec4f29c158d8a0a57bf56..640ba0e5831ce0334a9cbf03983c16a022e85065 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -97,6 +97,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] [NETIF_F_RXFCS_BIT] = "rx-fcs", [NETIF_F_RXALL_BIT] = "rx-all", [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload", + [NETIF_F_BUSY_POLL_BIT] = "busy-poll", }; static int ethtool_get_features(struct net_device *dev, void __user *useraddr)