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Chapter 4, Xgig TraceControl Capture Configuration Configure Ports or Domains
84 Xgig Analyzer User’s Guide
If you are adding information manually, you should add every PCIe or AHCI device found in the
capture and provide the Device ID, Class Code, and the Base Address Register (BAR) information
for the address ranges used in the capture.
When the device is of Class Code 0x010802 (NVMe), you should also create the NVMe queues
that are used in the trace and verify that the Memory Page Size (MPS) and Sector Size are set
correctly. The NVMe queues have an ID, type, and size. Likewise, when the device is of Class
Code 0x010601 (SATA-AHCI), you should create the SATA-AHCI queues.
The regular Submission and Completion queues can be Physically Contiguous or not, while the
Admin queues are always physically contiguous. When physically contiguous, a queue has only
one starting address. When non-contiguous, the queue uses a PRP List, and you need to enter the
starting address of every memory page covering the queue (not the address of the PRP List itself,
but all the addresses inside the PRP List).
There are several optional settings in the dialog that improve expert's analysis, annotations and
decodes for the capture.
• PCIe Device/Vendor ID : This combination uniquely identifies a PCIe device worldwide
• Revision ID, Header Type : Informational only for this release
• Expansion ROM Base/Size and Additional BARs : Used by Expert to identify the target
device of a packet routed by address
• MSI Interrupts : Addresses for each MSI interrupt sent by the device
• MSI-X Interrupts : Addresses for each MSI-X interrupt sent by the device
• TC to VC Mapping : Traffic Class to Virtual Channel mapping as found in the Virtual
Channel Capability of the device
• NVMe Version : Informational only for this release
Once you have finished editing the device mapping, you can click the Validate button to check the
consistency and reports issues. This process ensures that all the memory regions do not overlap,
the device ids are unique, and the queue ids and types are appropriate. TraceControl performs the
validation when you click the
Save
button.
To view the Configuration Space for each device, click the View Cfg Space button.