Single-Vector Rss Mode Status Block Format - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide
Table 91: MIS-X Status-Block and Mail Box Addresses (Cont.)
Status
Status Block Host INT Mail
Block Address Box
Numbe Register Register
r (64-bit) Address Indication Items
5 0x3D20, 0x228
0x3D24
6 0x3D28, 0x22C
0x3D2C
7 0x3D30, 0x230
0x3D34
....... ........ ........
....... ........ ........
16 0x3D78, 0x254
0x3D7C
Each replicated Status Block has its own format; however, each of the new status block formats is extrapolated
from the legacy status block format.
Note: Although High Priority INT Mail Boxes are DWORD (32-bit) registers, the original four were
placed on QWORD (64-bit) boundaries for legacy PCI 64-bit target access purposes. Broadcom's
PCIe does not allow 64-bit target accesses. Thus, the new Mailboxes are being placed 32-bits apart;
however, we are keeping the original four addresses intact.

Single-Vector RSS Mode Status Block Format

Table 92 on page 247 shows the Status-Block format used by Vector#0 in the Single-Vector RSS mode. Note
that first 24B of this structure is identical to the legacy Status Block.
Broadcom
®
January 29, 2016 • 5718-PG108-R
IOV Mode
INT Mail
Box
Register
Address Indication Items
VRQ5 RR Prod N/A
Index
SBD5 Cons Index
RBD 5 Cons
Index
VRQ6 RR Prod N/A
Index
SBD6 Cons Index
RBD 6 Cons
Index
VRQ7 RR Prod N/A
Index
SBD7 Cons Index
RBD 7 Cons
Indexes
....... N/A
........
VRQ16 RR Prod N/A
Index
SBD16 Cons
Index
RBD 16 Cons
Index
RSS Mode
N/A
N/A
N/A
N/A
N/A
MSI-X Plumbing
Comments
Used in MSI-X
Multivector IOV mode
for
Vector#5 -- Vector#16
–
–
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