net: Add net-device param to the get offloaded stats ndo

Some drivers would need to check few internal matters for
that. To be used in downstream mlx5 commit.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

@@ -857,7 +857,7 @@ mlxsw_sp_port_get_sw_stats64(const struct net_device *dev,
 	return 0;
 }
 
-static bool mlxsw_sp_port_has_offload_stats(int attr_id)
+static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id)
 {
 	switch (attr_id) {
 	case IFLA_OFFLOAD_XSTATS_CPU_HIT:

include/linux/netdevice.h

@@ -925,7 +925,7 @@ struct netdev_xdp {
  *	3. Update dev->stats asynchronously and atomically, and define
  *	   neither operation.
  *
- * bool (*ndo_has_offload_stats)(int attr_id)
+ * bool (*ndo_has_offload_stats)(const struct net_device *dev, int attr_id)
  *	Return true if this device supports offload stats of this attr_id.
  *
  * int (*ndo_get_offload_stats)(int attr_id, const struct net_device *dev,
@@ -1165,7 +1165,7 @@ struct net_device_ops {
 
 	struct rtnl_link_stats64* (*ndo_get_stats64)(struct net_device *dev,
 						     struct rtnl_link_stats64 *storage);
-	bool			(*ndo_has_offload_stats)(int attr_id);
+	bool			(*ndo_has_offload_stats)(const struct net_device *dev, int attr_id);
 	int			(*ndo_get_offload_stats)(int attr_id,
 							 const struct net_device *dev,
 							 void *attr_data);

net/core/rtnetlink.c

@@ -3671,7 +3671,7 @@ static int rtnl_get_offload_stats(struct sk_buff *skb, struct net_device *dev,
 		if (!size)
 			continue;
 
-		if (!dev->netdev_ops->ndo_has_offload_stats(attr_id))
+		if (!dev->netdev_ops->ndo_has_offload_stats(dev, attr_id))
 			continue;
 
 		attr = nla_reserve_64bit(skb, attr_id, size,
@@ -3712,7 +3712,7 @@ static int rtnl_get_offload_stats_size(const struct net_device *dev)
 
 	for (attr_id = IFLA_OFFLOAD_XSTATS_FIRST;
 	     attr_id <= IFLA_OFFLOAD_XSTATS_MAX; attr_id++) {
-		if (!dev->netdev_ops->ndo_has_offload_stats(attr_id))
+		if (!dev->netdev_ops->ndo_has_offload_stats(dev, attr_id))
 			continue;
 		size = rtnl_get_offload_stats_attr_size(attr_id);
 		nla_size += nla_total_size_64bit(size);