diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index eed46b6aa07df53e422e3615f42c18b245b4c28e..7e651ea33eabbcae100a025c7608aa128508f589 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -454,10 +454,12 @@ Request contents:
 
 Kernel response contents:
 
-  ====================================  ======  ==========================
+  ====================================  ======  ============================
   ``ETHTOOL_A_LINKSTATE_HEADER``        nested  reply header
   ``ETHTOOL_A_LINKSTATE_LINK``          bool    link state (up/down)
-  ====================================  ======  ==========================
+  ``ETHTOOL_A_LINKSTATE_SQI``           u32     Current Signal Quality Index
+  ``ETHTOOL_A_LINKSTATE_SQI_MAX``       u32     Max support SQI value
+  ====================================  ======  ============================
 
 For most NIC drivers, the value of ``ETHTOOL_A_LINKSTATE_LINK`` returns
 carrier flag provided by ``netif_carrier_ok()`` but there are drivers which
diff --git a/drivers/net/phy/nxp-tja11xx.c b/drivers/net/phy/nxp-tja11xx.c
index 0d4f9067ca715c92054d34c328e19dfb32269f09..1e79c30ca81a57a58ba24cea8dc8c3511b519766 100644
--- a/drivers/net/phy/nxp-tja11xx.c
+++ b/drivers/net/phy/nxp-tja11xx.c
@@ -53,6 +53,8 @@
 
 #define MII_COMMSTAT			23
 #define MII_COMMSTAT_LINK_UP		BIT(15)
+#define MII_COMMSTAT_SQI_STATE		GENMASK(7, 5)
+#define MII_COMMSTAT_SQI_MAX		7
 
 #define MII_GENSTAT			24
 #define MII_GENSTAT_PLL_LOCKED		BIT(14)
@@ -329,6 +331,22 @@ static int tja11xx_read_status(struct phy_device *phydev)
 	return 0;
 }
 
+static int tja11xx_get_sqi(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_COMMSTAT);
+	if (ret < 0)
+		return ret;
+
+	return FIELD_GET(MII_COMMSTAT_SQI_STATE, ret);
+}
+
+static int tja11xx_get_sqi_max(struct phy_device *phydev)
+{
+	return MII_COMMSTAT_SQI_MAX;
+}
+
 static int tja11xx_get_sset_count(struct phy_device *phydev)
 {
 	return ARRAY_SIZE(tja11xx_hw_stats);
@@ -683,6 +701,8 @@ static struct phy_driver tja11xx_driver[] = {
 		.config_aneg	= tja11xx_config_aneg,
 		.config_init	= tja11xx_config_init,
 		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.set_loopback   = genphy_loopback,
@@ -699,6 +719,8 @@ static struct phy_driver tja11xx_driver[] = {
 		.config_aneg	= tja11xx_config_aneg,
 		.config_init	= tja11xx_config_init,
 		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.set_loopback   = genphy_loopback,
@@ -715,6 +737,8 @@ static struct phy_driver tja11xx_driver[] = {
 		.config_aneg	= tja11xx_config_aneg,
 		.config_init	= tja11xx_config_init,
 		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
 		.match_phy_device = tja1102_p0_match_phy_device,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
@@ -736,6 +760,8 @@ static struct phy_driver tja11xx_driver[] = {
 		.config_aneg	= tja11xx_config_aneg,
 		.config_init	= tja11xx_config_init,
 		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
 		.match_phy_device = tja1102_p1_match_phy_device,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 467aa8bf9f6436e06087d4653d4f5b51616dbc65..2bcdf19ed3b410fd40f6f0ad4d62efaa775c445b 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -723,6 +723,8 @@ struct phy_driver {
 			    struct ethtool_tunable *tuna,
 			    const void *data);
 	int (*set_loopback)(struct phy_device *dev, bool enable);
+	int (*get_sqi)(struct phy_device *dev);
+	int (*get_sqi_max)(struct phy_device *dev);
 };
 #define to_phy_driver(d) container_of(to_mdio_common_driver(d),		\
 				      struct phy_driver, mdiodrv)
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index 2881af411f761db0a3e8404029b038ae6d745a85..e6f109b76c9aa36b2f3086dda26b77fa7ce87cac 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -232,6 +232,8 @@ enum {
 	ETHTOOL_A_LINKSTATE_UNSPEC,
 	ETHTOOL_A_LINKSTATE_HEADER,		/* nest - _A_HEADER_* */
 	ETHTOOL_A_LINKSTATE_LINK,		/* u8 */
+	ETHTOOL_A_LINKSTATE_SQI,		/* u32 */
+	ETHTOOL_A_LINKSTATE_SQI_MAX,		/* u32 */
 
 	/* add new constants above here */
 	__ETHTOOL_A_LINKSTATE_CNT,
diff --git a/net/ethtool/linkstate.c b/net/ethtool/linkstate.c
index 2740cde0a182b98e9d3252179a42f83d2de3b9e4..7f47ba89054e1fa16180ed01daf0a8a5870ab6a3 100644
--- a/net/ethtool/linkstate.c
+++ b/net/ethtool/linkstate.c
@@ -2,6 +2,7 @@
 
 #include "netlink.h"
 #include "common.h"
+#include <linux/phy.h>
 
 struct linkstate_req_info {
 	struct ethnl_req_info		base;
@@ -10,6 +11,8 @@ struct linkstate_req_info {
 struct linkstate_reply_data {
 	struct ethnl_reply_data		base;
 	int				link;
+	int				sqi;
+	int				sqi_max;
 };
 
 #define LINKSTATE_REPDATA(__reply_base) \
@@ -20,8 +23,46 @@ linkstate_get_policy[ETHTOOL_A_LINKSTATE_MAX + 1] = {
 	[ETHTOOL_A_LINKSTATE_UNSPEC]		= { .type = NLA_REJECT },
 	[ETHTOOL_A_LINKSTATE_HEADER]		= { .type = NLA_NESTED },
 	[ETHTOOL_A_LINKSTATE_LINK]		= { .type = NLA_REJECT },
+	[ETHTOOL_A_LINKSTATE_SQI]		= { .type = NLA_REJECT },
+	[ETHTOOL_A_LINKSTATE_SQI_MAX]		= { .type = NLA_REJECT },
 };
 
+static int linkstate_get_sqi(struct net_device *dev)
+{
+	struct phy_device *phydev = dev->phydev;
+	int ret;
+
+	if (!phydev)
+		return -EOPNOTSUPP;
+
+	mutex_lock(&phydev->lock);
+	if (!phydev->drv || !phydev->drv->get_sqi)
+		ret = -EOPNOTSUPP;
+	else
+		ret = phydev->drv->get_sqi(phydev);
+	mutex_unlock(&phydev->lock);
+
+	return ret;
+}
+
+static int linkstate_get_sqi_max(struct net_device *dev)
+{
+	struct phy_device *phydev = dev->phydev;
+	int ret;
+
+	if (!phydev)
+		return -EOPNOTSUPP;
+
+	mutex_lock(&phydev->lock);
+	if (!phydev->drv || !phydev->drv->get_sqi_max)
+		ret = -EOPNOTSUPP;
+	else
+		ret = phydev->drv->get_sqi_max(phydev);
+	mutex_unlock(&phydev->lock);
+
+	return ret;
+}
+
 static int linkstate_prepare_data(const struct ethnl_req_info *req_base,
 				  struct ethnl_reply_data *reply_base,
 				  struct genl_info *info)
@@ -34,6 +75,19 @@ static int linkstate_prepare_data(const struct ethnl_req_info *req_base,
 	if (ret < 0)
 		return ret;
 	data->link = __ethtool_get_link(dev);
+
+	ret = linkstate_get_sqi(dev);
+	if (ret < 0 && ret != -EOPNOTSUPP)
+		return ret;
+
+	data->sqi = ret;
+
+	ret = linkstate_get_sqi_max(dev);
+	if (ret < 0 && ret != -EOPNOTSUPP)
+		return ret;
+
+	data->sqi_max = ret;
+
 	ethnl_ops_complete(dev);
 
 	return 0;
@@ -42,8 +96,19 @@ static int linkstate_prepare_data(const struct ethnl_req_info *req_base,
 static int linkstate_reply_size(const struct ethnl_req_info *req_base,
 				const struct ethnl_reply_data *reply_base)
 {
-	return nla_total_size(sizeof(u8)) /* LINKSTATE_LINK */
+	struct linkstate_reply_data *data = LINKSTATE_REPDATA(reply_base);
+	int len;
+
+	len = nla_total_size(sizeof(u8)) /* LINKSTATE_LINK */
 		+ 0;
+
+	if (data->sqi != -EOPNOTSUPP)
+		len += nla_total_size(sizeof(u32));
+
+	if (data->sqi_max != -EOPNOTSUPP)
+		len += nla_total_size(sizeof(u32));
+
+	return len;
 }
 
 static int linkstate_fill_reply(struct sk_buff *skb,
@@ -56,6 +121,14 @@ static int linkstate_fill_reply(struct sk_buff *skb,
 	    nla_put_u8(skb, ETHTOOL_A_LINKSTATE_LINK, !!data->link))
 		return -EMSGSIZE;
 
+	if (data->sqi != -EOPNOTSUPP &&
+	    nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI, data->sqi))
+		return -EMSGSIZE;
+
+	if (data->sqi_max != -EOPNOTSUPP &&
+	    nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI_MAX, data->sqi_max))
+		return -EMSGSIZE;
+
 	return 0;
 }