diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index ebe4181..c90bc6f6 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -243,6 +243,15 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
  * @get_ethtool_stats: Return extended statistics about the device.
  *	This is only useful if the device maintains statistics not
  *	included in &struct rtnl_link_stats64.
+ * @get_ethtool_stats2: Return extended statistics about the device.
+ *	This is only useful if the device maintains statistics not
+ *	included in &struct rtnl_link_stats64.
+ *      Takes a flags argument:  0 means all (same as get_ethtool_stats),
+ *      0x1 (ETHTOOL_GS2_NO_REFRESH_FW) means skip refreshing firmware stats.
+ *      Other flags are reserved for now.
+ *      Same number of stats will be returned, but some of them might
+ *      not be as accurate/refreshed.  This is to allow not querying
+ *      firmware or other expensive-to-read stats, for instance.
  * @begin: Function to be called before any other operation.  Returns a
  *	negative error code or zero.
  * @complete: Function to be called after any other operation except
@@ -355,6 +364,9 @@ struct ethtool_ops {
 	int	(*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
 	void	(*get_ethtool_stats)(struct net_device *,
 				     struct ethtool_stats *, u64 *);
+	void	(*get_ethtool_stats2)(struct net_device *dev,
+				      struct ethtool_stats *gstats, u64 *data,
+				      u32 flags);
 	int	(*begin)(struct net_device *);
 	void	(*complete)(struct net_device *);
 	u32	(*get_priv_flags)(struct net_device *);
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 4ca65b5..75c753d 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1396,11 +1396,22 @@ enum ethtool_fec_config_bits {
 #define ETHTOOL_PHY_STUNABLE	0x0000004f /* Set PHY tunable configuration */
 #define ETHTOOL_GFECPARAM	0x00000050 /* Get FEC settings */
 #define ETHTOOL_SFECPARAM	0x00000051 /* Set FEC settings */
+#define ETHTOOL_GSTATS2		0x00000052 /* get NIC-specific statistics
+					    * with ability to specify flags.
+					    * See ETHTOOL_GS2* below.
+					    */
 
 /* compatibility with older code */
 #define SPARC_ETH_GSET		ETHTOOL_GSET
 #define SPARC_ETH_SSET		ETHTOOL_SSET
 
+/* GSTATS2 flags */
+#define ETHTOOL_GS2_REFRESH_ALL     (0)    /* default is to update all stats */
+#define ETHTOOL_GS2_NO_REFRESH_FW   (1<<0) /* Skip refreshing stats that probe
+					    * firmware, and thus are
+					    * slow/expensive.
+					    */
+
 /* Link mode bit indices */
 enum ethtool_link_mode_bit_indices {
 	ETHTOOL_LINK_MODE_10baseT_Half_BIT	= 0,
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 03416e6..dd16f15 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1952,16 +1952,14 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
 	return rc;
 }
 
-static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
+static int _ethtool_get_stats(struct net_device *dev, void __user *useraddr,
+			      u32 flags)
 {
 	struct ethtool_stats stats;
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 	u64 *data;
 	int ret, n_stats;
 
-	if (!ops->get_ethtool_stats || !ops->get_sset_count)
-		return -EOPNOTSUPP;
-
 	n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
 	if (n_stats < 0)
 		return n_stats;
@@ -1976,7 +1974,10 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
 	if (n_stats && !data)
 		return -ENOMEM;
 
-	ops->get_ethtool_stats(dev, &stats, data);
+	if (flags != ETHTOOL_GS2_REFRESH_ALL)
+		ops->get_ethtool_stats2(dev, &stats, data, flags);
+	else
+		ops->get_ethtool_stats(dev, &stats, data);
 
 	ret = -EFAULT;
 	if (copy_to_user(useraddr, &stats, sizeof(stats)))
@@ -1991,6 +1992,31 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
 	return ret;
 }
 
+static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+
+	if (!ops->get_ethtool_stats || !ops->get_sset_count)
+		return -EOPNOTSUPP;
+	return _ethtool_get_stats(dev, useraddr, ETHTOOL_GS2_REFRESH_ALL);
+}
+
+static int ethtool_get_stats2(struct net_device *dev, void __user *useraddr)
+{
+	struct ethtool_stats stats;
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	u32 flags = 0;
+
+	if (!ops->get_ethtool_stats2 || !ops->get_sset_count)
+		return -EOPNOTSUPP;
+
+	if (copy_from_user(&stats, useraddr, sizeof(stats)))
+		return -EFAULT;
+
+	flags = stats.n_stats;
+	return _ethtool_get_stats(dev, useraddr, flags);
+}
+
 static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_stats stats;
@@ -2632,6 +2658,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_GSSET_INFO:
 	case ETHTOOL_GSTRINGS:
 	case ETHTOOL_GSTATS:
+	case ETHTOOL_GSTATS2:
 	case ETHTOOL_GPHYSTATS:
 	case ETHTOOL_GTSO:
 	case ETHTOOL_GPERMADDR:
@@ -2742,6 +2769,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_GSTATS:
 		rc = ethtool_get_stats(dev, useraddr);
 		break;
+	case ETHTOOL_GSTATS2:
+		rc = ethtool_get_stats2(dev, useraddr);
+		break;
 	case ETHTOOL_GPERMADDR:
 		rc = ethtool_get_perm_addr(dev, useraddr);
 		break;
