Status BlockBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 83
The various status block formats are shown in this section.
INTx/MSI—Legacy Mode Status Block Format
INTx and MSI use this status-block format in non-RSS mode.
Status-Block [0] Status Word Format (single-vector RSS):
• Bit [0]: Update bit
• Bit [1]: Link status change
• Bit [2]: Error/attention
• Bits [31:3]: Reserved 0x0
Table 14: Status Block Format (MSI-X Single-Vector or INTx — RSS Mode)
Offset
31
1
6
15 0
0x00 Status Word
0x04 [31:8] Reserved 0x0 [7:0]Status Tag
0x08 Receive Standard Producer Ring Consumer
Index
Reserved 0x0
0x0C Reserved 0x0 Reserved 0x0
0x10 Send BD Consumer Index Receive Return Ring Producer Index
0x14 Reserved 0x0 Receive Jumbo Producer Ring Consumer Index
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