Commit d54151aa authored by Vladimir Oltean's avatar Vladimir Oltean Committed by Jakub Kicinski
Browse files

net: ethtool: create and export ethtool_dev_mm_supported() 



Create a wrapper over __ethtool_dev_mm_supported() which also calls
ethnl_ops_begin() and ethnl_ops_complete(). It can be used by other code
layers, such as tc, to make sure that preemptible TCs are supported
(this is true if an underlying MAC Merge layer exists).

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: default avatarFerenc Fejes <fejes@inf.elte.hu>
Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 85a4abed

include/linux/ethtool_netlink.h

+6 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ void ethtool_aggregate_pause_stats(struct net_device *dev, 
				   struct ethtool_pause_stats *pause_stats);

void ethtool_aggregate_rmon_stats(struct net_device *dev,

				  struct ethtool_rmon_stats *rmon_stats);

bool ethtool_dev_mm_supported(struct net_device *dev);



#else

static inline int ethnl_cable_test_alloc(struct phy_device *phydev, u8 cmd)
@@ -112,5 +113,10 @@ ethtool_aggregate_rmon_stats(struct net_device *dev, 
{

}



static inline bool ethtool_dev_mm_supported(struct net_device *dev)

{

	return false;

}



#endif /* IS_ENABLED(CONFIG_ETHTOOL_NETLINK) */

#endif /* _LINUX_ETHTOOL_NETLINK_H_ */

net/ethtool/mm.c

+23 −0
Original line number Diff line number Diff line
@@ -249,3 +249,26 @@ bool __ethtool_dev_mm_supported(struct net_device *dev) 


	return !ret;

}



bool ethtool_dev_mm_supported(struct net_device *dev)

{

	const struct ethtool_ops *ops = dev->ethtool_ops;

	bool supported;

	int ret;



	ASSERT_RTNL();



	if (!ops)

		return false;



	ret = ethnl_ops_begin(dev);

	if (ret < 0)

		return false;



	supported = __ethtool_dev_mm_supported(dev);



	ethnl_ops_complete(dev);



	return supported;

}

EXPORT_SYMBOL_GPL(ethtool_dev_mm_supported);