[switchorch] Implement VXLAN src port range feature (sonic-net#1959)

* Implement VXLAN src port range feature configuring
Signed-off-by: Andriy Yurkiv <ayurkiv@nvidia.com>

orchagent/switchorch.cpp

@@ -26,6 +26,12 @@ const map<string, sai_switch_attr_t> switch_attribute_map =
     {"vxlan_router_mac",                    SAI_SWITCH_ATTR_VXLAN_DEFAULT_ROUTER_MAC}
 };
 
+const map<string, sai_switch_tunnel_attr_t> switch_tunnel_attribute_map =
+{
+    {"vxlan_sport", SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT},
+    {"vxlan_mask",  SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT_MASK}
+};
+
 const map<string, sai_packet_action_t> packet_action_map =
 {
     {"drop",    SAI_PACKET_ACTION_DROP},
@@ -127,6 +133,61 @@ void SwitchOrch::doCfgSensorsTableTask(Consumer &consumer)
     }
 }
 
+
+sai_status_t SwitchOrch::setSwitchTunnelVxlanParams(swss::FieldValueTuple &val)
+{
+    auto attribute = fvField(val);
+    auto value = fvValue(val);
+    sai_attribute_t attr;
+    sai_status_t status;
+
+    if (!m_vxlanSportUserModeEnabled)
+    {
+        // Enable Vxlan src port range feature
+        vector<sai_attribute_t> attrs;
+        attr.id = SAI_SWITCH_TUNNEL_ATTR_TUNNEL_TYPE;
+        attr.value.s32 = SAI_TUNNEL_TYPE_VXLAN;
+        attrs.push_back(attr);
+        attr.id = SAI_SWITCH_TUNNEL_ATTR_TUNNEL_VXLAN_UDP_SPORT_MODE;
+        attr.value.s32 = SAI_TUNNEL_VXLAN_UDP_SPORT_MODE_USER_DEFINED;
+        attrs.push_back(attr);
+
+        status = sai_switch_api->create_switch_tunnel(&m_switchTunnelId, gSwitchId, static_cast<uint32_t>(attrs.size()), attrs.data());
+
+        if (status != SAI_STATUS_SUCCESS)
+        {
+            SWSS_LOG_ERROR("Failed to create switch_tunnel object, rv:%d",  status);
+            return status;
+        }
+
+        m_vxlanSportUserModeEnabled = true;
+    }
+
+    attr.id = switch_tunnel_attribute_map.at(attribute);
+    switch (attr.id)
+    {
+        case SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT:
+            attr.value.u16 = to_uint<uint16_t>(value);
+            break;
+        case SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT_MASK:
+            attr.value.u8 = to_uint<uint8_t>(value);
+            break;
+        default:
+            SWSS_LOG_ERROR("Invalid switch tunnel attribute id %d", attr.id);
+            return SAI_STATUS_SUCCESS;
+    }
+
+    status  = sai_switch_api->set_switch_tunnel_attribute(m_switchTunnelId, &attr);
+    if (status != SAI_STATUS_SUCCESS)
+    {
+        SWSS_LOG_ERROR("Failed to set tunnnel switch attribute %s to %s, rv:%d", attribute.c_str(), value.c_str(), status);
+        return status;
+    }
+
+    SWSS_LOG_NOTICE("Set switch attribute %s to %s", attribute.c_str(), value.c_str());
+    return SAI_STATUS_SUCCESS;
+}
+
 void SwitchOrch::doAppSwitchTableTask(Consumer &consumer)
 {
     SWSS_LOG_ENTER();
@@ -136,19 +197,31 @@ void SwitchOrch::doAppSwitchTableTask(Consumer &consumer)
     {
         auto t = it->second;
         auto op = kfvOp(t);
+        bool retry = false;
 
         if (op == SET_COMMAND)
         {
-            bool retry = false;
-
             for (auto i : kfvFieldsValues(t))
             {
                 auto attribute = fvField(i);
 
                 if (switch_attribute_map.find(attribute) == switch_attribute_map.end())
                 {
-                    SWSS_LOG_ERROR("Unsupported switch attribute %s", attribute.c_str());
-                    break;
+                    // Check additionally 'switch_tunnel_attribute_map' for Switch Tunnel
+                    if (switch_tunnel_attribute_map.find(attribute) == switch_tunnel_attribute_map.end())
+                    {
+                        SWSS_LOG_ERROR("Unsupported switch attribute %s", attribute.c_str());
+                        break;
+                    }
+
+                    auto status = setSwitchTunnelVxlanParams(i);
+                    if ((status != SAI_STATUS_SUCCESS) && (handleSaiSetStatus(SAI_API_SWITCH, status) == task_need_retry))
+                    {
+                        retry = true;
+                        break;
+                    }
+
+                    continue;
                 }
 
                 auto value = fvValue(i);

orchagent/switchorch.h

@@ -35,11 +35,13 @@ class SwitchOrch : public Orch
     void doAppSwitchTableTask(Consumer &consumer);
     void initSensorsTable();
     void querySwitchTpidCapability();
+    sai_status_t setSwitchTunnelVxlanParams(swss::FieldValueTuple &val);
 
     swss::NotificationConsumer* m_restartCheckNotificationConsumer;
     void doTask(swss::NotificationConsumer& consumer);
     swss::DBConnector *m_db;
     swss::Table m_switchTable;
+    sai_object_id_t m_switchTunnelId;
 
     // ASIC temperature sensors
     std::shared_ptr<swss::DBConnector> m_stateDb = nullptr;
@@ -52,6 +54,7 @@ class SwitchOrch : public Orch
     bool m_numTempSensorsInitialized = false;
     bool m_sensorsMaxTempSupported = true;
     bool m_sensorsAvgTempSupported = true;
+    bool m_vxlanSportUserModeEnabled = false;
 
     // Information contained in the request from
     // external program for orchagent pre-shutdown state check

tests/test_switch.py

@@ -40,14 +40,16 @@ def check_object(db, table, key, expected_attributes):
                                                (value, name, expected_attributes[name])
 
 
-def vxlan_switch_test(dvs, oid, port, mac):
+def vxlan_switch_test(dvs, oid, port, mac, mask, sport):
     app_db = swsscommon.DBConnector(swsscommon.APPL_DB, dvs.redis_sock, 0)
     create_entry_pst(
         app_db,
         "SWITCH_TABLE", ':', "switch",
         [
             ("vxlan_port", port),
-            ("vxlan_router_mac", mac)
+            ("vxlan_router_mac", mac),
+            ("vxlan_mask", mask),
+            ("vxlan_sport", sport),
         ],
     )
     time.sleep(2)
@@ -57,6 +59,8 @@ def vxlan_switch_test(dvs, oid, port, mac):
         {
             'SAI_SWITCH_ATTR_VXLAN_DEFAULT_PORT': port,
             'SAI_SWITCH_ATTR_VXLAN_DEFAULT_ROUTER_MAC': mac,
+            'SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT_MASK': mask,
+            'SAI_SWITCH_TUNNEL_ATTR_VXLAN_UDP_SPORT': sport,
         }
     )
 
@@ -67,10 +71,9 @@ class TestSwitch(object):
     '''
     def test_switch_attribute(self, dvs, testlog):
         switch_oid = get_exist_entry(dvs, "ASIC_STATE:SAI_OBJECT_TYPE_SWITCH")
+        vxlan_switch_test(dvs, switch_oid, "12345", "00:01:02:03:04:05", "20", "54321")
 
-        vxlan_switch_test(dvs, switch_oid, "12345", "00:01:02:03:04:05")
-
-        vxlan_switch_test(dvs, switch_oid, "56789", "00:0A:0B:0C:0D:0E")
+        vxlan_switch_test(dvs, switch_oid, "56789", "00:0A:0B:0C:0D:0E", "15", "56789")
 
 
 # Add Dummy always-pass test at end as workaroud