SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The ALE can map DSCP field to priority prior to classification matching. When enabled the DSCP is mapped via 64 priority entries such that any DSCP value can be mapped to any of the eight priorities. When a packet is received without a VLAN priority this remapped priority can be used instead of the default Port VLAN priority field. See CPSW_P0_RX_DSCP_MAP_REG_y and CPSW_PN_RX_DSCP_MAP_REG_y registers in the Register Manual section for DSCP mapping.