[PATCH net] octeontx2-pf: Fix ethtool timestamping capabilities for SDP representors

[<nshettyj@marvell.com>]

From: Roy Franz <rfranz@marvell.com>

SDP representors do not support hardware timestamping. The current
implementation of otx2_get_ts_info incorrectly advertises hardware
timestamping capabilities and a PHC index to userspace for these
interfaces.

Fix this by checking if the device is an SDP representor and returning
the default software timestamping capabilities instead.

Fixes: 2f7f33a09516 ("octeontx2-pf: Add representors for sdp MAC")
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
Signed-off-by: Roy Franz <rfranz@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
index a0340f3422bf..f7a2202c4a3e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
@@ -978,7 +978,7 @@ static int otx2_get_ts_info(struct net_device *netdev,
 {
 	struct otx2_nic *pfvf = netdev_priv(netdev);
 
-	if (!pfvf->ptp)
+	if (!pfvf->ptp || is_otx2_sdp_rep(pfvf->pdev))
 		return ethtool_op_get_ts_info(netdev, info);
 
 	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
-- 
2.48.1