Receive Data And Receive Bd Initiator Control Registers; Receive Data And Receive Bd Initiator Mode Register (Offset: 0X2400) - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide

Receive Data and Receive BD Initiator Control Registers

All registers reset are core reset unless specified.

Receive Data and Receive BD Initiator Mode Register (offset: 0x2400)

Name
Reserved
Legacy
Large RX Ring Sizes
Reserved
No BD Discard Policy
Broadcom
®
January 29, 2016 • 5718-PG108-R
Default
Bits Access Value
31:17 RO 0
31:14 0
16 RW 0
15 RO 0
14:13 RW 00
Receive Data and Receive BD Initiator Control Registers
Description
–
Defined by Legacy
When this bit is 1, following are the maximum
allowable Receive Ring sizes:
Standard Producer Ring == 2048
Jumbo Producer Ring
Receive Return Ring
When this bit is 0, following are the maximum
allowable Receive Ring sizes:
Standard Producer Ring == 512
Jumbo Producer Ring
Receive Return Ring
–
This field decides what to do with a packet in
RXMBUF belonging to a generic VRQ, when not
a single BD is available in the VRQ's BD Cache:
00 => The RDI shall discard an RX packet
belonging to a VRQ, if no corresponding RX BD
is available in the VRQ's BD Cache
01 => RDI shall place the RX packet in the
Default VRQ instead
10 => RDI shall wait for a BD to become
available in the VRQ's BD cache, no matter how
long it takes.
11 => Reserved for future use.
Ignored in non-IOV mode
== 1024
== 4096
== 256
== 1024
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