RDMA/bnxt_re: Avoid clearing VLAN_ID mask in modify qp path

Driver is always clearing the mask that sets the VLAN ID/Service Level
in the adapter. Recent change for supporting multiple traffic class
exposed this issue.

Allow setting SL and VLAN_ID while QP is moved from INIT to RTR state.

Fixes: 1ac5a40 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Fixes: c64b16a ("RDMA/bnxt_re: Support different traffic class")
Signed-off-by: Saravanan Vajravel <[email protected]>
Signed-off-by: Selvin Xavier <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>

Author: Saravanan Vajravel

drivers/infiniband/hw/bnxt_re/qplib_fp.c

@@ -1217,8 +1217,6 @@ static void __modify_flags_from_init_state(struct bnxt_qplib_qp *qp)
 			qp->path_mtu =
 				CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
 		}
-		qp->modify_flags &=
-			~CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
 		/* Bono FW require the max_dest_rd_atomic to be >= 1 */
 		if (qp->max_dest_rd_atomic < 1)
 			qp->max_dest_rd_atomic = 1;