Broadcom NetXtreme/NetLink BCM5718 Series

MSI-X PlumbingBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 247
Status-Block [0] Status Word Format (Single-Vector RSS):
• Bit [0]: Update-Bit
• Bit [1]: Link Status Change
• Bit [2]: Error/Attention
• Bits [31:4]: Reserved 0x0
Single-Vector IOV Mode Status Block Format
In Single-Vector IOV mode, all events are reported in the same Status Block used by Vector#0.
Table 92: Status Block Format (MSI-X Single-Vector RSS Mode)
Offset 3116 150
0x00 Status Word
0x04 [31:8] Reserved 0x0 [7:0]Status Tag
0x08 Receive Standard Producer Ring Consumer Index Receive Return Ring 1 Producer Index
0x0C Receive Return Ring 2 Producer Index Receive Return Ring 3 Producer Index
0x10 Send BD [1] Consumer Index
(Acts as Single Send queue Cons Index)
Receive Jumbo Producer Ring Consumer Index
0x14 Send BD 2 Consumer Index (IF Multi SendQ) Receive Return Ring 0 Producer Index
0x18 Send BD 3 Consumer Index (IF Multi SendQ) Send BD 4 Consumer Index (IF Multi SendQ)
Table 93: Status Block format (MSI-X Single-Vector IOV Mode)
Offset 3116 150
0x00 Status Word
0x04 [31:8] Reserved 0x0 [7:0]Status Tag
0x08 Single Send BD Consumer Index (IF Single Send
queue ELSE 0x0)
Receive Return Ring 0 Producer Index
0x0C Send BD 1 Consumer Index (IF Multi SendQ) Receive Return Ring 1 Producer Index
0x10 Send BD 2 Consumer Index (IF Multi SendQ) Receive Return Ring 2 Producer Index
0x14 Send BD 3 Consumer Index (IF Multi SendQ) Receive Return Ring 3 Producer Index
0x18 Send BD 4 Consumer Index (IF Multi SendQ) Receive Return Ring 4 Producer Index
0x1C Send BD 5 Consumer Index (IF Multi SendQ) Receive Return Ring 5 Producer Index
0x20 Send BD 6 Consumer Index (IF Multi SendQ) Receive Return Ring 6 Producer Index
0x24 Send BD 7 Consumer Index (IF Multi SendQ) Receive Return Ring 7 Producer Index
…… ………………………… ……………………….
0x48 Send BD 16 Consumer Index (IF Multi SendQ) Receive Return Ring 16 Producer Index
0x4C Standard RBD Ring 0 Consumer Index Jumbo RBD Ring 0 Consumer Index
0x50 Standard RBD Ring 1 Consumer Index Jumbo RBD Ring 1 Consumer Index
0x54 Standard RBD Ring 2 Consumer Index Jumbo RBD Ring 2 Consumer Index
0x58 Standard RBD Ring 3 Consumer Index Jumbo RBD Ring 3 Consumer Index
…….. ………………………… ……………………….