130 Keysight PXIe Chassis Family User Guide
PCIe Link Configuration Changing and Restoring the M9018 PCIe Switch Fabric Configuration
Reconfiguration failure
If the reconfiguration fails for any reason, the Configurator displays an error
message.
Click Retry to attempt to program the previously-selected switch fabric. Click
Ignore if, instead of attempting to program the previously-selected configuration,
you want to restore the 1x8 factory default configuration. Both of these
operations will bring up the Configurator progress indicator shown in Figure 66 on
page 127. If reconfiguration is successful, the selected configuration will become
active after the next boot.
Clicking Abort terminates all attempts to program a configuration and the chassis
defaults back to 1x8, which becomes active after the next boot. If self test is run
following the boot, code 537 and message “
Error detected during PCIe
Switch Fabric configuration. Base (factory default) PCIe Switch
Fabric was re-selected.”
will be returned. This code/message indicates
that the initial reconfiguration failed, and that the 1x8 Base Configuration was
automatically re-selected. Once the default fabric has been restored, you may
attempt to reconfigure the fabric again. If you continue to get the failure
message, contact Keysight support.
Restoring operation after an interruption of the configuration process
This section lists the steps that are needed if the configuration process is
interrupted—for example, if the chassis is powered down during the configuration
process. These steps are based on using Keysight IO Libraries Suite 16.1 (or
later), and will restore the PCIe Switch Fabric to the 1x8 factory default
configuration.
An important aspect of programming the PCIe Switch Fabric is that, as the fabric
is being programmed, the virtual switch shown in Figure 60 on page 116 is set to
point to the 1x8 Base Configuration. If programming of the fabric (for example, to
the 2x8 configuration) is successful, the virtual switch is then set to the Base
Configuration, which contains the 2x8 fabric. When the PC is booted next, the
2x8 Base Configuration will be loaded into the PCIe Switch Fabric as shown in
Figure 62 on page 122.
If programming of the 2x8 (or 4x4) configuration is interrupted, the fabric being
stored in the Base Configuration will likely be incomplete. However, the virtual
switch is set to the 1x8 Base Configuration during the programming (and
therefore remains set there after the interruption) will allow the 1x8 configuration
to be loaded at the next PC boot. When the chassis driver communicates to the
chassis after the boot (for example, when the SFP is brought up), the driver will
detect that the PCIe programming was interrupted, and will perform several
additional steps to instantiate 1x8 as the current chassis configuration.
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