diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 867c42154087..6811d1ef4ef2 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -50,8 +50,22 @@ static const char *phy_speed_to_str(int speed)
 		return "1Gbps";
 	case SPEED_2500:
 		return "2.5Gbps";
+	case SPEED_5000:
+		return "5Gbps";
 	case SPEED_10000:
 		return "10Gbps";
+	case SPEED_20000:
+		return "20Gbps";
+	case SPEED_25000:
+		return "25Gbps";
+	case SPEED_40000:
+		return "40Gbps";
+	case SPEED_50000:
+		return "50Gbps";
+	case SPEED_56000:
+		return "56Gbps";
+	case SPEED_100000:
+		return "100Gbps";
 	case SPEED_UNKNOWN:
 		return "Unknown";
 	default:
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 3dc91a46e8b8..5f4ea28eabe4 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1487,6 +1487,7 @@ enum ethtool_link_mode_bit_indices {
  */
 
 /* The forced speed, in units of 1Mb. All values 0 to INT_MAX are legal. */
+/* Update drivers/net/phy/phy.c:phy_speed_to_str() when adding new values */
 #define SPEED_10		10
 #define SPEED_100		100
 #define SPEED_1000		1000