Layerscape中的主题 Re: DPSW no buffer discard

DPSW no buffer discard

linxings — Tue, 23 Sep 2025 10:13:26 GMT

Hello,

I used the ls - addsw command to create a dpsw, and during the running test, I discovered an issue.
When my packet rate reaches 1.2Gbps, dpsw will experience no buffer discard, and its rate can only reach 945Mbps.
May I ask how I should solve this problem?

The corresponding dprc resources are shown in the file.

Re: DPSW no buffer discard

Bio_TICFSL — Tue, 23 Sep 2025 14:04:38 GMT

Hello, And now we want to use DPSW to do traffic bifurcation between DPDK and Linux Kernel on in DPAA2, according to the LLDPUG, we only need to replace DPDMUX with DPSW and the steps to configure the setup are same as DPDMUX. You could use recent released LSDK Layerscape Linux Distribution POC User Guide Rev, L6.1.55_2.2.0

https://docs.nxp.com/bundle/Layerscape_Linux_Distribution_POC_User_Guide/page/topics/setting_up_ethernet_switch_capability.html

Regards

Re: DPSW no buffer discard

linxings — Wed, 24 Sep 2025 03:28:34 GMT

Is there a solution that uses DPSW?

Re: DPSW no buffer discard

Bio_TICFSL — Wed, 24 Sep 2025 13:24:18 GMT

Hello,

Yes, you can check the RM or this page:

https://docs.nxp.com/bundle/GUID-487B2E69-BB19-42CB-AC38-7EF18C0FE3AE/page/GUID-6B20C5FB-B787-4CC1-B6AB-351276113960.html#

Regards