VSC7440 datasheet(218/444 Pages) MICROSEMI

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Functional Descriptions

VMDS-10492 VSC7440 Datasheet Revision 4.2

201

Set ANA_AC:STAT_CNT_CFG_PORT[port].STAT_CFG[3].CFG_CNT_BYTE = 1.

Set ANA_AC:STAT_CNT_CFG_PORT[port].STAT_CFG[3].CFG_PRIO_MASK = 0xFF.

•

Enable global event 3 as trigger:

Set ANA_AC:STAT_GLOBAL_CFG_PORT[3]. STAT_GLOBAL_EVENT_MASK = 8.

Example: To set up port counter 0 to count frames dropped by port policer, the following configuration is

required.

•

Set up port counters. For each active Ethernet port:

Set ANA_AC:STAT_CNT_CFG_PORT[port].STAT_CFG[0].CFG_CNT_FRM_TYPE = 3.

Set ANA_AC:STAT_CNT_CFG_PORT[port].STAT_CFG[0].CFG_CNT_BYTE = 0.

Set ANA_AC:STAT_CNT_CFG_PORT[port].STAT_CFG[0].CFG_PRIO_MASK = 0xFF.

•

Enable global event 4 to 7 as trigger:

Set ANA_AC:STAT_GLOBAL_CFG_PORT[0]. STAT_GLOBAL_EVENT_MASK = 0xF0.

3.23.3.2 Queue Statistics

The following table lists the applicable queue statistics registers.

The following illustration shows the configuration and status available for each queue statistics counter.

Figure 47 •

Queue Statistics

Each counter type must be configured to count either bytes or frames

(ANA_AC:STAT_GLOBAL_CFG_QUEUE: STAT_GLOBAL_CFG.CFG_CNT_BYTE).

ACL events that can trigger counting can be selected among the following events:

•

Count traffic applicable for queue policer, but not discarded

•

Count traffic discarded by queue policer

There is one common event mask for each of the two queue counter types

(ANA_AC:STAT_GLOBAL_CFG_QUEUE:STAT_GLOBAL_EVENT_MASK).

Each 40-bit counter consists of an MSB part and an LSB part

(ANA_AC:STAT_CNT_CFG_QUEUE.STAT_MSB_CNT and

ANA_AC:STAT_CNT_CFG_QUEUE.STAT_LSB_CNT). The MSB part of the counter is latched to a

Table 128 •

Queue Statistics Registers Overview

Target::Register.Field

Description

Replication

ANA_AC:STAT_GLOBAL_CFG_QUEUE:

STAT_GLOBAL_CFG

Configures counting of bytes or frames per

queue (= port × 8 + iprio).

ANA_AC:STAT_GLOBAL_CFG_QUEUE:

STAT_GLOBAL_EVENT_MASK

Configures global event mask per queue

(= port × 8 + iprio).

ANA_AC:STAT_CNT_CFG_QUEUE.STAT_LSB_CNT Least significant 32 bits of counters per queue. per queue × 2

ANA_AC:STAT_CNT_CFG_QUEUE.STAT_MSB_CNT Most significant 8 bits of counters per queue.

per queue × 2

index = port number × 8 + IPRIO

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