| Port Name | I/O | Description |
|---|---|---|
| s_axis_c2h_cmpt_tdata[511:0] | I | Completion data from the user application. This contains information that is written to the completion ring in the host. |
| s_axis_c2h_cmpt_size [1:0] | I | 00: 8B completion. 01: 16B completion. 10: 32B completion. 11: 64B completion |
| s_axis_c2h_cmpt_dpar [15:0] | I |
Odd parity computed as bit per 32b. s_axis_c2h_cmpt_dpar[0] is parity over s_axis_c2h_cmpt_tdata[31:0]. s_axis_c2h_cmpt_dpar[1] is parity over s_axis_c2h_cmpt_tdata[63:31] and so on. |
| s_axis_c2h_cmpt_ctrl_qid[10:0] | I | Completion queue ID. |
| s_axis_c2h_cmpt_ctrl_marker | I | Marker message used for making sure pipeline is completely flushed. After that, you can safely do queue invalidation. |
| s_axis_c2h_cmpt_ctrl_user_trig | I | User can trigger the interrupt and the status descriptor write if they are enabled. |
| s_axis_c2h_cmpt_ctrl_cmpt_type[1:0] | I |
2’b00: NO_PLD_NO_WAIT. The CMPT packet does not have a corresponding payload packet, and it does not need to wait. 2’b01: NO_PLD_BUT_WAIT. The CMPT packet does not have a corresponding payload packet; however, it still needs to wait for the payload packet to be sent before sending the CMPT packet. 2’b10: RSVD. 2’b11: HAS_PLD. The CMPT packet has a corresponding payload packe, and it needs to wait for the payload packet to be sent before sending the CMPT packet. |
| s_axis_c2h_cmpt_ctrl_wait_pld_pkt_id[15:0] | I | The data payload packet ID that the CMPT packet needs to wait for before it can be sent. |
| s_axis_c2h_cmpt_ctrl_port_id[2:0] | I | Port ID. |
| s_axis_c2h_cmpt_ctrl_col_idx[2:0] | I | Color index that defines if the user wants to have the color bit in the CMPT packet and the bit location of the color bit if present. |
| s_axis_c2h_cmpt_ctrl_err_idx[2:0] | I | Error index that defines if the user wants to have the error bit in the CMPT packet and the bit location of the error bit if present. |
|
s_axis_c2h_cmpt_ctrl_no_wrb_marker |
I | Disables CMPT packet during Marker transfer. 1'b0 : CMPT packets are sent to CMPT ring 1'b1 : CMPT packets are not sent to CMPT ring. |
| s_axis_c2h_cmpt_tvalid | I | Valid. s_axis_c2h_cmpt_tvalid must be asserted until s_axis_c2h_cmpt_tready is asserted. |
| s_axis_c2h_cmpt_tready | O | Ready. |