net: mscc: ocelot: correctly report the timestamping RX filters in ethtool

[ Upstream commit c49a35eedfef08bffd46b53c25dbf9d6016a86ff ]

The driver doesn't support RX timestamping for non-PTP packets, but it
declares that it does. Restrict the reported RX filters to PTP v2 over
L2 and over L4.

Fixes: 4e3b0468e6d7 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 154d67066d0129405885f0bc8a5c1fa0e46a5fd7..52401915828a1287d70edf567f01974117d69907 100644 (file)
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -929,7 +929,10 @@ int ocelot_get_ts_info(struct ocelot *ocelot, int port,
                                 SOF_TIMESTAMPING_RAW_HARDWARE;
        info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
                         BIT(HWTSTAMP_TX_ONESTEP_SYNC);
-       info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
+       info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+                          BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
+                          BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+                          BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT);
 
        return 0;
 }