[PATCH net] octeontx2-af: nix: Fix TX vtag upper bits programming

[Ratheesh Kannoth]

From: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>

The upper bits of the vtag value above bit 47 were not written to
NIX_AF_TX_VTAG_DEFX_DATA, causing incorrect TX VLAN tag insertion
when extended vtag fields are used.

Fixes: 9a946def264d ("octeontx2-af: Modify nix_vtag_cfg mailbox to support TX VTAG entries")
Signed-off-by: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
Signed-off-by: Ratheesh Kannoth <rkannoth@xxxxxxxxxxx>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 153eb57bad06..091ef8dac7c9 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -3107,6 +3107,7 @@ static int nix_tx_vtag_alloc(struct rvu *rvu, int blkaddr,
 	mutex_unlock(&vlan->rsrc_lock);
 
 	regval = size ? vtag : vtag << 32;
+	regval |= (vtag & ~GENMASK_ULL(47, 0)) << 48;
 
 	rvu_write64(rvu, blkaddr,
 		    NIX_AF_TX_VTAG_DEFX_DATA(index), regval);
-- 
2.43.0