Intel Extensible Firmware Interface User Manual
Page 1036
Extensible Firmware Interface Specification
K-26
12/01/02
Version 1.10
Table K-2. Functions Listed Alphabetically within a Service or Protocol
(continued)
Service or Protocol
Function
Function Description
Uses the ARP protocol to resolve a MAC address.
Attempts to complete a DHCPv4 D.O.R.A. (discover /
offer / request / acknowledge) or DHCPv6 S.A.R.R
(solicit / advertise / request / reply) sequence.
Attempts to complete the PXE Boot Server and/or
boot image discovery sequence.
Callback function that is invoked when the PXE Base
Code Protocol is waiting for an event.
Is used to perform TFTP and MTFTP services.
Updates the IP receive filters of a network device and
enables software filtering.
Updates the contents of the cached DHCP and
Discover packets.
Updates the parameters that affect the operation of
the PXE Base Code Protocol.
Updates the station IP address and/or subnet mask
values.
Enables the use of PXE Base Code Protocol
functions.
Disables the use of PXE Base Code Protocol
functions.
Reads a UDP packet from a network interface.
Writes a UDP packet to a network interface.
Used by EFI components to convert internal pointers
when switching to virtual addressing.
Returns the next high 32 bits of a platform’s
monotonic counter.
Enumerates the current variable names.
Returns the current time and date, and the time-
keeping capabilities of the platform.
Returns the value of the specific variable.
Returns the current wakeup alarm clock setting.
Resets the entire platform.
Sets the current local time and date information.
Sets the value of the specified variable.
Used by an OS loader to convert from physical
addressing to virtual addressing.
Sets the system wakeup alarm clock time.
continued