Extensible Firmware Interface Specification
444 12/12/00 Version 1.02
G.4.13 Statistics
This command is used to read and clear the NIC traffic statistics. Before using this command check
to see if statistics is supported in the !PXE.Implementation flags.
G.4.13.1 Issuing the Command
To issue a Statistics command, create a CDB and fill it in as shows in the table below:
CDB Field How to initialize the CDB structure for a Statistics command
OpCode PXE_OPCODE_STATISTICS
OpFlags Set as needed.
CPBsize PXE_CPBSIZE_NOT_USED
DBsize sizeof(PXE_DB_STATISTICS)
CPBaddr PXE_CPBADDR_NOT_USED
DBaddr Address of PXE_DB_STATISTICS structure.
StatCode PXE_STATCODE_INITIALIZE
StatFlags PXE_STATFLAGS_INITIALIZE
IFnum A valid interface number from zero to !PXE.IFcnt.
Control Set as needed.
OpFlags
To read the current statistics counters set the OpFlags field to:
PXE_OPFLAGS_STATISTICS_READ
To reset the current statistics counters set the OpFlags field to:
PXE_OPFLAGS_STATISTICS_RESET