Intel Extensible Firmware Interface - Manual (Page 618)

Extensible Firmware Interface Specification
15-12 12/01/02 Version 1.10
If ResetMCastFilter is TRUE , then the multicast receive filter list on the network interface
will be reset to the default multicast receive filter list. If ResetMCastFilter is FALSE , and
this network interface allows the multicast receive filter list to be modified, then the
MCastFilterCnt and MCastFilter are used to update the current multicast receive filter list.
The modified receive filter list settings can be found in the MCastFilter field of
EFI_SIMPLE_NETWORK_MODE . If the network interface does not allow the multicast receive
filter list to be modified, then EFI_INVALID_PARAMETER will be returned. If the driver has not
been initialized, EFI_DEVICE_ERROR will be returned.
If the receive filter mask and multicast receive filter list have been successfully updated on the
network interface,
EFI_SUCCESS will be returned.
Status Codes Returned
EFI_SUCCESS The multicast receive filter list was updated.
EFI_NOT_STARTED The network interface has not been started.
EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
EFI_DEVICE_ERROR The command could not be sent to the network interface.
EFI_UNSUPPORTED This function is not supported by the network interface.