Teledyne LeCroy Summit T3-16 PCIe Multi-lane Protocol Analyzer User Manual - Manual (Page 237)

Summit T3‐16 PCI Express Multi‐Lane Protocol Analyzer User Manual 225
PCIe SSD Base Address Mapping Teledyne LeCroy
Throughput: The Memory Write payload divided by response time, expressed in
megabytes per second.
10.23 PCIe SSD Base Address Mapping
In order for NVMe, PQI, AHCI and ATA command to work correctly, the PETracer software
needs to know the Memory Base Address of the device. In cases when Base Address
assignment is recorded in the trace, the software will determine all the values
automatically. If the Base Address assignment is not present in the trace, you can specify
the values manually using this dialog. You need to select the type of the device (NVMe,
PQI or AHCI) and set the value of the Base Address by selecting Tools > PCIe SSD Base
Address Mapping. The PCIe SSD Configuration dialog displays (see
Figure 10.36 on
page 226 ).
From software release 6.63 onwards, users are able to decode NVMe/PQI traces which
are lacking configuration space and administration information and from release 6.70 this
is applicable to AHCI traces. Users have to follow the steps below to facilitate this
decoding:
1. Record the trace for NVMe/PQI, AHCI or ATA device boot and decode it.
This saves the configuration space and administration information in .xml format,
which is used to decode traces with only IO commands.
2. Record the trace of the same NVMe/PQI, AHCI or ATA device without rebooting and
the application will decode it.
You can keep recording and decoding until rebooting. On reboot repeat steps 1 and 2
above.
10.23.1 NVMe PCIe SSD Device Configuration
The PCIe SSD Configuration dialog is used to add missing information to decode the trace
without the configuration space and queue administration information. See
Figure 10.36
on page 226 for NVMe PCIe SSD Device Configuration.
Prior to decoding if every thing is available in Configuration Space then Source equals
Config Space (see
Figure 10.36 on page 226 ).