Visible to Intel only — GUID: lro1402201428830
Ixiasoft
Visible to Intel only — GUID: lro1402201428830
Ixiasoft
31.4.3. Sequence Number Field
The sequence number field is available only when using extended descriptors.The sequence number is an arbitrary value that you assign to a descriptor, so that you can determine which descriptor is being operated on by the read and write hosts. When performing memory-mapped to memory-mapped transfers, this value is tracked independently for hosts since each can be operating on a different descriptor. To use this functionality, program the descriptors with unique sequence numbers. Then, access the dispatcher CSR agent port to determine which descriptor is operated on.