Queue Status Ports - 3.4 English

Versal Adaptive SoC CPM DMA and Bridge Mode for PCI Express Product Guide (PG347)

Document ID
PG347
Release Date
2024-05-30
Version
3.4 English
Table 1. Queue Status Ports
Port Name I/O Description
dma<n>_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

dma<n>_qsts_out_data[63:0] O The data field for the individual opcodes are defined in the tables below.
dma<n>_qsts_out_port_id[2:0] O Port ID
dma<n>_qsts_out_qid[12:0] O Queue ID
dma<n>_qsts_out_vld O Queue status valid
dma<n>_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.