@@ -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_ */
@@ -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);
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: Vladimir Oltean <vladimir.oltean@nxp.com> --- v1->v2: - don't touch net/sched/sch_mqprio.c in this patch - add missing EXPORT_SYMBOL_GPL(ethtool_dev_mm_supported) include/linux/ethtool_netlink.h | 6 ++++++ net/ethtool/mm.c | 23 +++++++++++++++++++++++ 2 files changed, 29 insertions(+)