Test suite for verifying checksum hardware offload through the PMD works as expected. This is done by checking the verbose output in testpmd while in csum forwarding mode, specifically the ol_flags section, to ensure they match the flags in the test plan. However, there are a few issues I noticed while writing the suite that made me hesitant to submit a patch:
1. SCTP hardware offload is not supported on any of the NICs I tested on. I've tried this on mlx5, i40e, and bnxt drivers and none of them support it. SCTP offload is used as part of almost every test case, so I removed SCTP packets from the suite entirely. I intend to keep it that way unless anyone is able to use the command "csum set sctp hw 0" without an "SCTP not supported" error. 2. There are two Tx checksum test cases, which involve checking the Tx flags section of verbose output to ensure they match the ones in the test plan. However, the Tx flags don't appear to change at all depending on what packet you send to testpmd, which leaves me with no way to verify correct behavior. I'm considering removing the Tx cases entirely, but they are a large chunk of the suite so if anyone disagrees I can look for more of a workaround. If anyone has any comments or advice about the issues above it is greatly appreciated. Dean Marx (2): dts: add csum HW offload to testpmd shell dts: checksum offload test suite dts/framework/config/conf_yaml_schema.json | 3 +- dts/framework/remote_session/testpmd_shell.py | 94 ++++++ dts/tests/TestSuite_checksum_offload.py | 288 ++++++++++++++++++ 3 files changed, 384 insertions(+), 1 deletion(-) create mode 100644 dts/tests/TestSuite_checksum_offload.py -- 2.44.0
