IO-PKT CPSW ethernet driver datasheet

Table of Contents

• IO-PKT CPSW2G driver
  • Test Setup for QNX TI_J721S2_EVM_Board
  • TCP Performance
  • UDP Performance

IO-PKT CPSW2G driver

Test Setup for QNX TI_J721S2_EVM_Board

Hardware Configuration	Value
Processing Core	A72
Core Frequency	2 GHz
Ethernet Interface Type	RGMII at 1Gbps
Packet buffer memory	DDR
Hardware checksum offload	No
Scatter-gather TX	No
Scatter-gather RX	No

Software Configuration	Value
OS	QNX
TCP/IP stack	IO-PKT network stack
Host PC tool version	iperf

TCP Performance

On EVM QNX prompt:

iperf2 -s

Host PC commands::

iperf -c <evm_ip> -r

iperf -c <evm_ip> -d

Test	Bandwidth (Mbps)	CPU Load (%)
TCP RX	872	48.6
TCP TX	852	47.9
TCP Bidirectional	RX=576, TX=493	48.1

UDP Performance

On EVM QNX prompt:

iperf2 -u -s

Host PC commands::

• Test with datagram length of 256B::

iperf -c <evm_ip> -u -l256 -b<bw> -r

where <bw> is 25M, 50M, 100M, etc

• Test with datagram length of 512B::

iperf -c <evm_ip> -u -l512 -b<bw> -r

where <bw> is 25M, 50M, 100M, etc

• Test with datagram length of 1470B (max)::

iperf -c <evm_ip> -u -b<bw> -r

where <bw> is 25M, 50M, 100M, etc

Test Datagram Length = 256B	Bandwidth (Mbps)	CPU Load (%)	Packet Loss (%)
UDP RX & TX (50M)	49.7 & 52.2	29 & 47	1e+02
UDP RX & TX (100M)	86.3 & 105	49.5 & 46	1e+02
UDP RX & TX (500M)	2.04 & 119	50 & 48.5	1e+02
UDP RX & TX (Auto)	.121 & 117	50 & 49	1e+02

Test Datagram Length = 512B	Bandwidth (Mbps)	CPU Load (%)	Packet Loss (%)
UDP RX + TX (50M)	49.7 & 51.7	19.5 & 47.5	1e+02
UDP RX & TX (100M)	98 & 105	29 & 45.5	1e+02
UDP RX & TX (500M)	54 & 230	50.5 & 48	1e+02
UDP RX & TX (Auto)	3.78 & 227	50 & 48	1e+02

Test Datagram Length = 1470B	Bandwidth (Mbps)	CPU Load (%)	Packet Loss (%)
UDP RX & TX (50M)	49.1 & 52.4	6.5 & 47.5	1e+02
UDP RX & TX (100M)	98.1 & 105	14 & 45	1e+02
UDP RX & TX (500M)	365 & 524	51.5 & 48	1e+02
UDP RX & TX (Auto)	191 & 593	49 & 45.5	1e+02

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