Intel IXF1104 manual MAC RX Statistics Register Overview

Models: IXF1104

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IXF1104 4-Port Gigabit Ethernet Media Access Controller

8.4.2MAC RX Statistics Register Overview

The MAC RX Statistics registers contain the MAC receiver statistic counters and are cleared when read. The software polls these registers and accumulates values to ensure that the counters do not wrap. The 32-bit counters wrap after approximately 30 seconds.

Table 93 covers the RX statistics for the four MAC ports. Port_Index is the port number (0, 1, 2, or 3).

Table 93. MAC RX Statistics ($ Port_Index + 0x20 – + 0x39) (Sheet 1 of 4)

Name

Description

Address

Type1

Default

 

 

 

 

 

 

Counts the bytes received in all legal frames,

 

 

 

 

including all bytes from the destination MAC

Port_Index

 

 

RxOctetsTotalOK

address to and including the cyclic redundancy

R

0x00000000

+ 0x20

 

check (CRC). The initial preamble and Start of

 

 

 

 

 

 

 

Frame Delimiter (SFD) bytes are not counted.

 

 

 

 

 

 

 

 

 

Counts the bytes received in all bad frames with

 

 

 

 

legal size (frames with CRC error, alignment

 

 

 

 

errors, or code violations), including all bytes

 

 

 

 

from the destination MAC address to (and

 

 

 

RxOctetsBAD2

including) the CRC. The initial preamble and

Port_Index

R

0x00000000

SFD bytes are not counted. Frames with illegal

+ 0x21

 

size do not add to this counter (shorts, runts,

 

 

 

 

longs, jabbers, and very longs).

 

 

 

 

Note: This register does not count octets on

 

 

 

 

undersized received packets.

 

 

 

 

 

 

 

 

 

The total number of unicast packets received

 

 

 

 

(excluding bad packets).

 

 

 

 

Note: This count includes non-pause control and

Port_Index

 

 

RxUCPkts

VLAN packets, which are also counted in other

R

0x00000000

counters. These packet types are counted twice.

+ 0x22

 

 

 

 

Take care when summing register counts for

 

 

 

 

reporting Management Information Base (MIB)

 

 

 

 

information.

 

 

 

 

 

 

 

 

 

The total number of multicast packets received

 

 

 

 

(excluding bad packets)

 

 

 

RxMCPkts

Note: This count includes pause control packets,

Port_Index

R

0x00000000

which are also counted in the PauseMacControl-

+ 0x23

 

ReceivedCounter. These packet types are

 

 

 

 

 

 

 

counted twice. Take care when summing register

 

 

 

 

counts for reporting MIB information.

 

 

 

 

 

 

 

 

RxBCPkts

The total number of Broadcast packets received

Port_Index

R

0x00000000

(excluding bad packets).

+ 0x24

 

 

 

 

 

 

 

 

 

The total number of packets received (including

 

 

 

RxPkts64Octets

bad packets) that were 64 octets in length.

Port_Index

R

0x00000000

Incremented for tagged packets with a length of

+ 0x25

 

 

 

 

64 bytes, including tag field.

 

 

 

 

 

 

 

 

1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No clear; R/W/C = Read/Write, Clear on Write

2. When sending in large frames, the counters can only handle certain limits. The behavior of the LongErrors and VeryLongErrors counters is as follows: VeryLongErrors counts frames that are 2*maxframesize, dependent upon where maxframesize is set. If maxframesize sets greater than half of the available count in RxOctetsBad (2^14-1), VeryLongErrors is never incremented, but LongErrors is incremented. This is due to a limitation in the counter size, which means that an accurate count will not occur in the RxOctetsBAD counter if the frame is larger than 2^14-1.

3. This register is relevant only when configured for copper operation.

4. This register is relevant only when configured for fiber operation (line side interface is SerDes).

Datasheet

173

Document Number: 278757

Revision Number: 007

Revision Date: March 25, 2004

Page 173
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Intel IXF1104 manual MAC RX Statistics Register Overview, MAC RX Statistics $ PortIndex + 0x20 + 0x39 Sheet 1

IXF1104 specifications

The Intel IXF1104 is a cutting-edge Network Interface Controller (NIC) designed to meet the needs of high-speed communication in modern networking environments. As the demand for bandwidth-intensive applications continues to grow, Intel's IXF1104 is engineered to deliver exceptional performance, reliability, and scalability, making it an ideal choice for data centers and enterprise networks.

One of the main features of the IXF1104 is its support for high-speed Ethernet connectivity, providing up to 100 Gbps throughput. This capability allows organizations to handle large amounts of data traffic efficiently, accommodating everything from cloud computing to big data analytics. The NIC utilizes advanced packet processing technology which ensures minimal latency, enhancing the overall user experience.

The IXF1104 is built on a robust architecture that integrates Intel's latest processing technologies. It incorporates a multi-core processing engine that allows for parallel processing of network packets, improving the handling of simultaneous network requests. This architecture also supports offloading features, freeing up CPU resources for other critical tasks, which optimizes system performance.

In terms of technologies, the IXF1104 supports a variety of standards including Ethernet and Fiber Channel, making it versatile across different networking environments. Its compatibility with industry-standard networking protocols ensures that it can easily integrate into existing frameworks, facilitating seamless upgrades and expansions.

Another significant characteristic of the IXF1104 is its energy efficiency. With Intel’s focus on sustainability, this NIC is designed to consume less power relative to its performance output, thereby reducing overall operational costs for organizations. It employs dynamic power management features that adjust power usage based on demand, which is especially beneficial in large-scale deployments.

Additionally, security features are woven into the IXF1104 design, protecting sensitive data from potential threats. Hardware-based security functions, including encryption capabilities and secure boot processes, ensure that the NIC can safeguard data integrity against unauthorized access.

Overall, the Intel IXF1104 stands out in the crowded NIC market by offering high-performance capabilities, energy efficiency, and robust security features. Its combination of advanced technologies and characteristics positions it as a strategic asset for modern networks, empowering organizations to achieve their connectivity and performance goals in an increasingly data-driven world.