Data Sheet

Ethernet Controller I210 —System Manageability
672
The status is 8 bytes where byte 0 (bits 7:0) is set in Data 2 of the status and byte 7 in Data 9 of the
status. Table 10-17 lists the content of the status data.
The meaning of the bits inside of each field can be found in Section 7.1.4.2.
10.5.9.2.2 Read Status Command
The MC should use this command after receiving a notification from the I210 (such as SMBus Alert).
The I210 also sends a notification to the MC in either of the following two cases:
• The MC asserts a request for reading the status.
• The I210 detects a change in one of the Status Data 1 bits (and was set to send status to the MC on
status change) in the Receive Enable command.
Note: Commands 0xC0/0xD0 are for backward compatibility and can be used for other payloads.
The I210 defines these commands in the opcode as well as which payload this transaction is.
When the 0XDE command is set, the I210 always returns opcode 0XDD with the I210 status.
The MC reads the event causing the notification, using the Read Status command as follows.
Table 10-17. TCO LAN Packet Status Data
Name Bits Description
Packet Length 13:0 Packet length including CRC, only 14 LSB bits.
Reserved 15:14 Reserved
Packet status 31:16 See Table 10-18
VLAN 47:32 The two bytes of the VLAN header tag.
MNG status 63:48 See Table 10-20. This field should be ignored if Receive TCO is not enabled,
Table 10-18. Packet Status Info
Field Bit(s) Description
Reserved 15:2 Reserved
VP 1
VLAN Stripped (indicates if the VLAN is part of the packet, or was
removed).
In the I210 this bit is always zero.
CRC stripped 0
Packet doesn’t include CRC.
In the I210 this bit is always one.
Table 10-20. MNG Status
Name Bits Description
Reserved 15:9 Reserved
Decision Filter match 8 Set when there is a match to one of the Decision filters
Decision Filter index 7:4
Indicates which of the decision filters match the packet.
(allows for up to 16 filters - although only 8 are currently
supported)
MNG VLAN Address Match 3
Set when the MNG packet matches one of the MNG VLAN
filters
Pass MNG VLAN Filter Index 2:0 Indicates which of the VLAN filters match the packet.