All marker responses are sent out through this interface. If the IP is configured in
an internal mode (no descriptor bypass), there are some marker responses sent out on
this interface for packet completion. You can ignore this interface or set the
mrkr_dis
signal bit in the context settings.
Port Name | I/O | Description |
---|---|---|
qsts_out_op[7:0] | O | Opcode This indicates the type of packet being issued. Encoding of
this field is as follows. 0x0: CMPT Marker Response 0x1: H2C-ST Marker Response 0x2: C2H-MM Marker Response 0x3: H2C-MM Marker Response 0x4-0xff: reserved |
qsts_out_data[63:0] | O | The data field for the individual opcodes are defined in the tables Table 1 and Table 2. |
qsts_out_port_id[2:0] | O | Port ID |
qsts_out_qid[11:0] | O | Queue ID |
qsts_out_vld | O | Queue status valid |
qsts_out_rdy | I | Queue status ready. Ready must be tied to 1 so status output will not be blocked. Even if this interface is not used, the ready port must be tied to 1. |