Link Layer Tests
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In the first part, Examiner will not send any LMPs.
In the second part, Examiner will send a Port Capabilities LMP, but will not send Port
Configuration LMP (or Port Configuration ACK LMP).
In the third part, Examiner will send a Port Configuration LMP (or Port Configuration
ACK LMP), but will not send a Port Capabilities LMP.
Test Steps and Expected Results
If Examiner is configured as a Downstream Port:
1.
Examiner performs steps 1 to 3 of TD7.1 (Link Bring-Up Test) to bring the link to U0, and
does not transmit any LMP.
The test fails if the PUT does not transmit the Port Capabilities LMP.
The test fails if the PUT does not transition to SS.Disabled after
tPortConfiguration calculated test time (20.6us).
The test fails if the PUT transitions to SS.Disabled before tPortConfiguration
deadline (20us), or sends any other packets or LFPS signals at this point.
2.
Examiner performs steps 1 to 3 of TD7.1 (Link Bring-Up Test) to bring the link to U0.
3.
Examiner waits for the PUT’s Port Capabilities LMP.
The test fails if the PUT does not transmit the Port Capability LMP.
4.
Examiner sends its Port Capabilities LMP, but does not transmit its Port Configuration LMP.
The test fails if the PUT does not transition to SS.Disabled after
tPortConfiguration calculated test time (20.6us).
The test fails if the PUT transitions to SS.Disabled before tPortConfiguration
deadline (20us), or sends any other packets or LFPS signals at this point.
5.
Examiner performs steps 1 to 3 of TD7.1 (Link Bring-Up Test) to bring the link to U0.
6.
Examiner sends its Port Configuration LMP, but does not transmit its Port Capabilities LMP.
