82598EB Datasheet, PDF (512/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - NC-SI Support
5.4.2.2.7.3 Set Unicast Packet Reduction Command (Intel Command 0x04, Reduction Filter
Index 0x00)
This command causes the NC to filter packets that have passed due to the unicast filter (MAC address
filters, as specified in the DMTF NC-SI). Note that unicast filtering might be affected by other 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 unicast 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 unicast filters (MAC address
filtering) as specified in the DMTF NC-SI.
The Unicast Packet Reduction field has the following structure:
Bit #
Name
0
Reserved
1
Reserved
2
Reserved
3
IP Address
4
Reserved
5
Reserved
6
Reserved
7
Reserved
8
ARP Response
9
Reserved
10
Port 0x298
11
Port 0x26F
12
Flex port 0
13
Flex port 1
14
Flex port 2
15
Flex port 3
16
Flex port 4
Description
If set, all unicast packets must also match an IP filter.
If set, all unicast packets must also match the ARP response filter (any of the active
filters).
If set, all unicast packets must also match a fixed TCP/UDP port 0x298 filter.
If set, all unicast packets must also match a fixed TCP/UDP port 0x26F filter.
If set, all unicast packets must also match the TCP/UDP port filter 0.
If set, all unicast packets must also match the TCP/UDP port filter 1.
If set, all unicast packets must also match the TCP/UDP port filter 2.
If set, all unicast packets must also match the TCP/UDP port filter 3.
If set, all unicast packets must also match the TCP/UDP port filter 4.
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