82598EB Datasheet, PDF (516/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - NC-SI Support
Bits 4, 5, and 7-31 work in an OR manner; at least one of them must be true for a packet to pass (if
any were set).
See Figure 5-5 for more details on the decision filters.
5.4.2.2.7.6 Set Multicast Packet Reduction Response (Intel Command 0x04, Reduction
Filter Index 0x01)
5.4.2.2.7.7 Set Broadcast Packet Reduction Command (Intel Command 0x04, Reduction
Filter Index 0x02)
This command causes the NC to filter packets that have passed due to the broadcast filter (MAC
address filters, as specified in the DMTF NC-SI).
The filtering of these packets are done such that the MC might add a logical condition that a packet
must match, or it must be discarded.
Note: Packets that might have been blocked can still pass due to other decision filters.
In order to disable broadcast packet reduction, the MC should set all reduction filters to 0b. Following
such a setting, the NC must forward, to the MC, all packets that have passed the broadcast filters as
specified in the DMTF NC-SI.
The Broadcast Packet Reduction field has the following structure:
Bit #
0
1
2
Name
Reserved
Reserved
Reserved
Reserved.
Description
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