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-rw-r--r--include/linux/netdev_features.h2
-rw-r--r--net/core/dev.c7
-rw-r--r--net/core/ethtool.c1
3 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 5a09a48..c26d0ec 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 7570634..75e88e0 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 30071de..640ba0e 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)
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