[portsorch]: Limit FlexPort feature to only Mellanox Platform (sonic-net#338)

For other platforms that do not support SAI create/remove_port API,
generate a log message instead of crash.

Author: lguohan

orchagent/aclorch.cpp

@@ -879,7 +879,7 @@ AclRange *AclRange::create(sai_acl_range_type_t type, int min, int max)
 
         // work around to avoid syncd termination on SAI error due to max count of ranges reached
         // can be removed when syncd start passing errors to the SAI callers
-        char *platform = getenv("onie_platform");
+        char *platform = getenv("platform");
         if (platform && strstr(platform, MLNX_PLATFORM_SUBSTRING))
         {
             if (m_ranges.size() >= MLNX_MAX_RANGES_COUNT)

orchagent/aclorch.h

@@ -57,7 +57,6 @@
 #define IP_TYPE_ARP_REQUEST     "ARP_REQUEST"
 #define IP_TYPE_ARP_REPLY       "ARP_REPLY"
 
-#define MLNX_PLATFORM_SUBSTRING "mlnx"
 #define MLNX_MAX_RANGES_COUNT   16
 
 typedef enum

orchagent/copporch.cpp

@@ -14,8 +14,6 @@ extern sai_policer_api_t*   sai_policer_api;
 extern sai_switch_api_t*    sai_switch_api;
 extern sai_object_id_t      gSwitchId;
 
-#define MLNX_PLATFORM_SUBSTRING     "mlnx"
-
 map<string, sai_meter_type_t> policer_meter_map = {
     {"packets", SAI_METER_TYPE_PACKETS},
     {"bytes", SAI_METER_TYPE_BYTES}

orchagent/orch.h

@@ -24,6 +24,8 @@ const char ref_end             = ']';
 const char comma               = ',';
 const char range_specifier     = '-';
 
+#define MLNX_PLATFORM_SUBSTRING "mlnx"
+
 typedef enum
 {
     task_success,

orchagent/portsorch.cpp

@@ -679,10 +679,19 @@ void PortsOrch::doPortTask(Consumer &consumer)
                 {
                     if (m_lanesAliasSpeedMap.find(it->first) == m_lanesAliasSpeedMap.end())
                     {
-                        if (!removePort(it->second))
+                        char *platform = getenv("platform");
+                        if (platform && strstr(platform, MLNX_PLATFORM_SUBSTRING))
                         {
-                            throw runtime_error("PortsOrch initialization failure.");
+                            if (!removePort(it->second))
+                            {
+                                throw runtime_error("PortsOrch initialization failure.");
+                            }
                         }
+                        else
+                        {
+                            SWSS_LOG_NOTICE("Failed to remove Port %lx due to missing SAI remove_port API.", it->second);
+                        }
+
                         it = m_portListLaneMap.erase(it);
                     }
                     else
@@ -693,23 +702,50 @@ void PortsOrch::doPortTask(Consumer &consumer)
 
                 for (auto it = m_lanesAliasSpeedMap.begin(); it != m_lanesAliasSpeedMap.end();)
                 {
+                    bool port_created = false;
+
                     if (m_portListLaneMap.find(it->first) == m_portListLaneMap.end())
                     {
-                        if (!addPort(it->first, get<1>(it->second)))
+                        // work around to avoid syncd termination on SAI error due missing create_port SAI API
+                        // can be removed when SAI redis return NotImplemented error
+                        char *platform = getenv("platform");
+                        if (platform && strstr(platform, MLNX_PLATFORM_SUBSTRING))
                         {
-                            throw runtime_error("PortsOrch initialization failure.");
+                            if (!addPort(it->first, get<1>(it->second)))
+                            {
+                                throw runtime_error("PortsOrch initialization failure.");
+                            }
+
+                            port_created = true;
+                        }
+                        else
+                        {
+                            SWSS_LOG_NOTICE("Failed to create Port %s due to missing SAI create_port API.", get<0>(it->second).c_str());
                         }
                     }
+                    else
+                    {
+                        port_created = true;
+                    }
 
-                    if (!initPort(get<0>(it->second), it->first))
+                    if (port_created)
                     {
-                        throw runtime_error("PortsOrch initialization failure.");
+                        if (!initPort(get<0>(it->second), it->first))
+                        {
+                            throw runtime_error("PortsOrch initialization failure.");
+                        }
                     }
 
                     it = m_lanesAliasSpeedMap.erase(it);
                 }
             }
 
+            if (!m_portConfigDone)
+            {
+                it = consumer.m_toSync.erase(it);
+                continue;
+            }
+
             Port p;
             if (!getPort(alias, p))
             {

orchagent/qosorch.cpp

@@ -610,7 +610,7 @@ QosOrch::QosOrch(DBConnector *db, vector<string> &tableNames) : Orch(db, tableNa
     // understand the underlying rationale.
 
     // Do not create color ACL on p4 platform as it does not support match dscp and ecn
-    char *platform = getenv("onie_platform");
+    char *platform = getenv("platform");
     if (!platform ||
         (platform && strcmp(platform, "x86_64-barefoot_p4-r0") != 0))
     {

orchagent/routeorch.cpp

@@ -15,7 +15,6 @@ extern PortsOrch *gPortsOrch;
 /* Default maximum number of next hop groups */
 #define DEFAULT_NUMBER_OF_ECMP_GROUPS   128
 #define DEFAULT_MAX_ECMP_GROUP_SIZE     32
-#define MLNX_PLATFORM_SUBSTRING         "mlnx"
 
 RouteOrch::RouteOrch(DBConnector *db, string tableName, NeighOrch *neighOrch) :
         Orch(db, tableName),