3.2.2.10.3.3. TSN with CPSW

3.2.2.10.3.3.1. Introduction

TI Common Platform Ethernet Switch (CPSW) supports TSN features such as:

1. PTP (Precision Time Protocol) [IEEE-1588, IEEE-802.1AS]

2. EST (Enhancements for Scheduled Traffic) [IEEE-802.1Qbv]

3. FQTSS / CBS (Credit Based Shaper) [IEEE-802.1Qav]

4. IET (Interspersing Express Traffic) [IEEE-802.3br, IEEE-802.1Qbu]

Note

All TSN features require CONFIG_TI_AM65_CPTS to be enabled.

Note

Switch based TSN features are supported only with CPSWxg for x >= 3.

3.2.2.10.3.3.2. Documentation and Testing

The documentation for each of the TSN features along with the tests are present at:

• 3.2.2.10.3.3.2.1. PTP
• 3.2.2.10.3.3.2.2. EST
• 3.2.2.10.3.3.2.3. CBS
• 3.2.2.10.3.3.2.4. IET

3.2.2.10.3.3.3. Testing Details

• The tests have been performed on TI’s J7VCL with CPSW5G in QSGMII/SGMII modes and on TI’s AM625-SK with CPSW3G in RGMII mode.

• TI’s AM64-SK with CPSW3G in RGMII mode has been used to assist in the testing process.

• TSN testing has been done in MAC mode as well as SWITCH mode.

• The test setup and the scripts are documented in this page to help replicate the tests with appropriate changes if required.

• The outputs for each of the performed tests have also been documented.

• For all the tests, CONFIG_TI_K3_AM65_CPTS has to be enabled in kernel config.

• For tuning the TSN features in Switch Mode, refer TSN Switch Tuning Guide