Fix AgentVoqSwitchFullScaleDsfNodesTest.systemPortScaleTest in dual s…

…tage

Summary: As titled. The calculation is fixed in new release to only account 3 queues for single VOQ creation.

Reviewed By: daiwei1983

Differential Revision: D68470872

fbshipit-source-id: d6e92819b86ede067f55925684bc79aa56a09275

fboss/agent/test/agent_hw_tests/AgentVoqSwitchWithMultipleDsfNodesTests.cpp

@@ -110,12 +110,8 @@ TEST_F(AgentVoqSwitchWithMultipleDsfNodesTest, remoteSystemPort) {
                  << " after sysPortsFree: " << afterSysPortsFree
                  << " voqsFree: " << afterVoqsFree;
       EXPECT_EVENTUALLY_EQ(beforeSysPortsFree - 1, afterSysPortsFree);
-      // 8 VOQs allocated per sys port for single stage
-      // 4 VOQs allocated per sys port for dual stage - 3 VOQs for the system
-      // port itself (since it's <16k port), and 1 VOQ for the 16k+ port. Please
-      // see 3Q2Q mode VOQ allocation for more details.
       EXPECT_EVENTUALLY_EQ(
-          isDualStage3Q2QMode() ? beforeVoqsFree - 4 : beforeVoqsFree - 8,
+          isDualStage3Q2QMode() ? beforeVoqsFree - 3 : beforeVoqsFree - 8,
           afterVoqsFree);
     });
   };