remove crm acl_counters when acl_table removed (#918)

* fix bad parameter for gCrmOrch->incCrmAclUsedCounter in qosorch

* fix VS test failure for test_crm.py::test_CrmAcl FAILED

* remove crm acl_counters when acl_table removed

Signed-off-by: Jared.Liu <Jared.Liu@nephosinc.com>

* add test case for remove crm acl_counters when acl_table removed #918

Author: JaredLius

orchagent/crmorch.cpp

@@ -336,21 +336,28 @@ void CrmOrch::decCrmAclUsedCounter(CrmResourceType resource, sai_acl_stage_t sta
     {
         m_resourcesMap.at(resource).countersMap[getCrmAclKey(stage, point)].usedCounter--;
 
-        // Remove ACL table related counters
+        // remove acl_entry and acl_counter in this acl table
         if (resource == CrmResourceType::CRM_ACL_TABLE)
         {
-            auto & cntMap = m_resourcesMap.at(CrmResourceType::CRM_ACL_TABLE).countersMap;
-            for (auto it = cntMap.begin(); it != cntMap.end();)
+            for (auto &resourcesMap : m_resourcesMap)
             {
-                if (it->second.id == oid)
+                if ((resourcesMap.first == (CrmResourceType::CRM_ACL_ENTRY))
+                    || (resourcesMap.first == (CrmResourceType::CRM_ACL_COUNTER)))
                 {
-                    it = cntMap.erase(it);
-                }
-                else
-                {
-                    ++it;
+                    auto &cntMap = resourcesMap.second.countersMap;
+                    for (auto it = cntMap.begin(); it != cntMap.end(); ++it)
+                    {
+                        if (it->second.id == oid)
+                        {
+                            cntMap.erase(it);
+                            break;
+                        }
+                    }
                 }
             }
+
+            // remove ACL_TABLE_STATS in crm database
+            m_countersCrmTable->del(getCrmAclTableKey(oid));
         }
     }
     catch (...)

tests/test_crm.py

@@ -563,6 +563,7 @@ def test_CrmAcl(dvs, testlog):
     adb = swsscommon.DBConnector(1, dvs.redis_sock, 0)
 
     dvs.runcmd("crm config polling interval 1")
+    time.sleep(1)
 
     bind_ports = ["Ethernet0", "Ethernet4"]
 
@@ -615,3 +616,7 @@ def test_CrmAcl(dvs, testlog):
     table_used_counter = new_table_used_counter - old_table_used_counter
     assert table_used_counter == 0
 
+    counters_db = swsscommon.DBConnector(swsscommon.COUNTERS_DB, dvs.redis_sock, 0)
+    crm_stats_table = swsscommon.Table(counters_db, 'CRM')
+    keys = crm_stats_table.getKeys()
+    assert key not in keys