ixgbe: Don't report unsupported timestamping filters for X550

The current code enables on X550 timestamping of all packets for any
filter, which means ethtool should not report any PTP-specific filters
as unsupported.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c

@@ -3085,9 +3085,18 @@ static int ixgbe_get_ts_info(struct net_device *dev,
 	case ixgbe_mac_X550EM_x:
 	case ixgbe_mac_x550em_a:
 		info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
-		/* fallthrough */
+		break;
 	case ixgbe_mac_X540:
 	case ixgbe_mac_82599EB:
+		info->rx_filters |=
+			BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+			BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+			BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
+		break;
+	default:
+		return ethtool_op_get_ts_info(dev, info);
+	}
+
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |
 		SOF_TIMESTAMPING_RX_SOFTWARE |
@@ -3105,14 +3114,6 @@ static int ixgbe_get_ts_info(struct net_device *dev,
 		BIT(HWTSTAMP_TX_OFF) |
 		BIT(HWTSTAMP_TX_ON);
 
-		info->rx_filters |=
-			BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
-			BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
-			BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
-		break;
-	default:
-		return ethtool_op_get_ts_info(dev, info);
-	}
 	return 0;
 }