[inbandif]VOQ Inband intf support - code review comments fix - 1

Signed-off-by: vedganes <vedavinayagam.ganesan@nokia.com>

Fixed code review comments:
- Added comment to delInbandNeighbor() to indicate this is for local
inband interface
- Used hardcoded "Inband" prefix
- Reverted to net dev link up event detection using IFF_LOWER_UP flag
- Renamed "oper_status" of net dev to "netdev_oper_status" in the state
db PORT_TABLE.

Author: vedganes

cfgmgr/nbrmgr.cpp

@@ -422,11 +422,11 @@ bool NbrMgr::isIntfOperUp(const string &alias)
 {
     string oper;
 
-    if (m_statePortTable.hget(alias, "oper_status", oper))
+    if (m_statePortTable.hget(alias, "netdev_oper_status", oper))
     {
         if (oper == "up")
         {
-            SWSS_LOG_DEBUG("Intf %s is oper up", alias.c_str());
+            SWSS_LOG_DEBUG("NetDev %s is oper up", alias.c_str());
             return true;
         }
     }

orchagent/neighorch.cpp

@@ -1223,7 +1223,8 @@ bool NeighOrch::addInbandNeighbor(string alias, IpAddress ip_address)
 
 bool NeighOrch::delInbandNeighbor(string alias, IpAddress ip_address)
 {
-    //Remove neighbor from SAI
+    // Remove local inband neighbor from SAI
+
     if(gIntfsOrch->isRemoteSystemPortIntf(alias))
     {
         //Remote Inband interface. Skip

portsyncd/linksync.cpp

@@ -30,6 +30,7 @@ using namespace swss;
 const string MGMT_PREFIX = "eth";
 const string INTFS_PREFIX = "Ethernet";
 const string LAG_PREFIX = "PortChannel";
+const string INBAND_PREFIX = "Inband";
 
 extern set<string> g_portSet;
 extern bool g_init;
@@ -165,18 +166,17 @@ void LinkSync::onMsg(int nlmsg_type, struct nl_object *obj)
     struct rtnl_link *link = (struct rtnl_link *)obj;
     string key = rtnl_link_get_name(link);
 
-    vector<FieldValueTuple> temp;
     if (key.compare(0, INTFS_PREFIX.length(), INTFS_PREFIX) &&
         key.compare(0, LAG_PREFIX.length(), LAG_PREFIX) &&
         key.compare(0, MGMT_PREFIX.length(), MGMT_PREFIX) &&
-        !m_portTable.get(key, temp))
+        key.compare(0, INBAND_PREFIX.length(), INBAND_PREFIX))
     {
         return;
     }
 
     unsigned int flags = rtnl_link_get_flags(link);
     bool admin = flags & IFF_UP;
-    bool oper = flags & IFF_RUNNING;
+    bool oper = flags & IFF_LOWER_UP;
 
     char addrStr[MAX_ADDR_SIZE+1] = {0};
     nl_addr2str(rtnl_link_get_addr(link), addrStr, MAX_ADDR_SIZE);
@@ -248,13 +248,14 @@ void LinkSync::onMsg(int nlmsg_type, struct nl_object *obj)
     /* front panel interfaces: Check if the port is in the PORT_TABLE
      * non-front panel interfaces such as eth0, lo which are not in the
      * PORT_TABLE are ignored. */
+    vector<FieldValueTuple> temp;
     if (m_portTable.get(key, temp))
     {
         g_portSet.erase(key);
         FieldValueTuple tuple("state", "ok");
         vector<FieldValueTuple> vector;
         vector.push_back(tuple);
-        FieldValueTuple op("oper_status", oper ? "up" : "down");
+        FieldValueTuple op("netdev_oper_status", oper ? "up" : "down");
         vector.push_back(op);
         m_statePortTable.set(key, vector);
         SWSS_LOG_NOTICE("Publish %s(ok:%s) to state db", key.c_str(), oper ? "up" : "down");