Understanding PCI Express Maximum Payload Size on OpenSolaris


 
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Old 12-18-2008
Understanding PCI Express Maximum Payload Size on OpenSolaris

When PCI Express fabrics are configured properly, PCIe protocol efficiency and performance can be improved in OpenSolaris. Consider a device's payload capabilities as one of the performance parameters when configuring each fabric.

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SCANPCI(1)						      General Commands Manual							SCANPCI(1)

NAME
scanpci - scan/probe PCI buses SYNOPSIS
/usr/bin/scanpci [-v] DESCRIPTION
Scanpci is a utility that can be used to scan PCI buses and report information about the configuration space settings for each PCI device. On most platforms, scanpci can only be run by the root user. On OpenSolaris and Solaris it may also be run using the Desktop Configuration rights profile. See rbac(5) and user_attr(4). OPTIONS
-v Print the configuration space information for each device in a verbose format. Without this option, only a brief description is printed for each device. SEE ALSO
prtconf(1M),prtdiag(1M),smbios(1M), user_attr(4),rbac(5). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWpciaccess | +-----------------------------+-----------------------------+ |Interface Stability |Volatile | +-----------------------------+-----------------------------+ libpciaccess 0.10.5 SCANPCI(1)