Send Bd Fetch Threshold Register (Offset: 0X1850); Send Mail Box Registers; Table 105: Multiple Send Ring Mail Boxes - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide

Send BD Fetch Threshold Register (offset: 0x1850)

Name
Reserved
Send BD Fetch Threshold

Send Mail Box Registers

15 more Host Send Producer Index registers are added to the High Priority Mail Box region as shown in the
Table below. Similarly, 15 more NIC Send Producer Index registers are also added in the GRC space.
Host Send Ring
Producer Index
Send Ring # (High Priority Mail Box)
Legacy /1 0x304
2 0x300
3 0x30C
4 0x308
5 0x314
6 0x310
7 0x31C
8 0x318
9 0x324
10 0x320
11 0x32C
12 0x328
13 0x334
14 0x330
15 0x33C
16 0x338
Broadcom
®
January 29, 2016 • 5718-PG108-R
Default
Bits Access Value
31:6 RO 0x00
5:0 RW 0x1F

Table 105: Multiple Send Ring Mail Boxes

NIC Send Ring
Producer Index
0x5980
0x5984
0x5988
0x598C
0x5990
0x5994
0x5998
0x599C
0x59A0
0x59A4
0x59A8
0x59AC
0x59B0
0x59B4
0x59B8
0x59BC
Send BD Initiator Control Registers
Description
Unused
The value programmed in this field sets a cap to
the number of SBDs that would be fetched by a
single DMA transaction (although there are other
factors which might further limit the DMA size).
This parameter uniformly applies to all 16 Send
Rings.
This parameter is meaningful only in the Multiple
Send Ring mode. 0x1800[5] == 1
NIC Diagnostic
Send Ring
Consumer Index
0x3CC0
0x3F04
0x3F08
0x3F0C
0x3F10
0x3F14
0x3F18
0x3F1C
0x3F20
0x3F24
0x3F28
0x3F2C
0x3F30
0x3F34
0x3F38
0x3F3C
Usable in
Legacy Mode,
RSS Mode and
IOV Mode
RSS Mode and
IOV Mode
IOV Mode Only
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