net/mlx4_core: set port QoS attributes

Adding QoS firmware commands:
- mlx4_en_SET_PORT_PRIO2TC - set UP <=> TC
- mlx4_en_SET_PORT_SCHEDULER - set promised BW, max BW and PG number

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/mlx4/cmd.h

@@ -150,6 +150,10 @@ enum {
 	/* statistics commands */
 	MLX4_CMD_QUERY_IF_STAT	 = 0X54,
 	MLX4_CMD_SET_IF_STAT	 = 0X55,
+
+	/* set port opcode modifiers */
+	MLX4_SET_PORT_PRIO2TC = 0x8,
+	MLX4_SET_PORT_SCHEDULER  = 0x9,
 };
 
 enum {