Commit 1c78c64e authored by John Fastabend's avatar John Fastabend Committed by David S. Miller
Browse files

net: add tc offload feature flag 



Its useful to turn off the qdisc offload feature at a per device
level. This gives us a big hammer to enable/disable offloading.
More fine grained control (i.e. per rule) may be supported later.

Signed-off-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Acked-by: default avatarJamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a1b7c5fd

include/linux/netdev_features.h

+3 −0
Original line number Diff line number Diff line
@@ -67,6 +67,8 @@ enum { 
	NETIF_F_HW_L2FW_DOFFLOAD_BIT,	/* Allow L2 Forwarding in Hardware */

	NETIF_F_BUSY_POLL_BIT,		/* Busy poll */



	NETIF_F_HW_TC_BIT,		/* Offload TC infrastructure */



	/*

	 * Add your fresh new feature above and remember to update

	 * netdev_features_strings[] in net/core/ethtool.c and maybe
@@ -124,6 +126,7 @@ enum { 
#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)

#define NETIF_F_HW_TC		__NETIF_F(HW_TC)



#define for_each_netdev_feature(mask_addr, bit)	\

	for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)

net/core/ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -98,6 +98,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] 
	[NETIF_F_RXALL_BIT] =            "rx-all",

	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",

	[NETIF_F_BUSY_POLL_BIT] =        "busy-poll",

	[NETIF_F_HW_TC_BIT] =		 "hw-tc-offload",

};



static const char

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