82598EB Datasheet, PDF (458/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - SMBus Pass-Through Transactions
Table 5-13. Status Data Byte 2
Bit
5
4
3
Name
Reserved
Reserved
Driver Valid Indication
2
Interrupt Pending Indication
1
ICR Register Read/Write
0
Reserved
Description
Reserved.
Reserved.
0b = LAN driver is not alive.
1b = LAN driver is alive.
1b = LAN interrupt line is asserted.
0b = LAN interrupt line is not asserted.
1b = ICR register was read since the last read status cycle.
0b = ICR register was not read since the last read status cycle.
Reading the ICR indicates that the driver has dealt with the interrupt that
was asserted.
Reserved
Note: When 82598EB is in teaming mode, the bits listed in Status Data Byte 2 represent both
cores:
1. The LAN device driver alive indication is set if one of the LAN device drivers is alive.
2. The LAN interrupt is considered asserted if one of the interrupt lines is asserted.
3. The ICR is considered read if one of the ICRs was read (LAN 0 or LAN 1).
Status Data Byte 2 (bits 2 and 1) lists the possible values of bits 2 and 1 and what the BMC can assume
from the bits:
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