EthernetMac, EthernetCsmaMac: added allowNonstandardBitrate NED param…

…eter

Usually disabled. When enable it, the ethernet allows any bitrate.
See EthernetModes class.

src/inet/linklayer/ethernet/base/EthernetMacBase.cc

@@ -63,6 +63,7 @@ void EthernetMacBase::initialize(int stage)
     MacProtocolBase::initialize(stage);
     if (stage == INITSTAGE_LOCAL) {
         fcsMode = parseFcsMode(par("fcsMode"));
+        allowNonstandardBitrate = par("allowNonstandardBitrate");
         physInGate = gate("phys$i");
         physOutGate = gate("phys$o");
         lowerLayerInGateId = physInGate->getId();
@@ -428,7 +429,7 @@ void EthernetMacBase::readChannelParameters(bool errorWhenAsymmetric)
 
     if (connected) {
         // Check valid speeds
-        curEtherDescr = EthernetModes::getEthernetMode(txRate);
+        curEtherDescr = EthernetModes::getEthernetMode(txRate, allowNonstandardBitrate);
         halfBitTime = 0.5 / txRate;
         if (networkInterface) {
             networkInterface->setCarrier(true);

src/inet/linklayer/ethernet/base/EthernetMacBase.h

@@ -65,6 +65,7 @@ class INET_API EthernetMacBase : public MacProtocolBase, public queueing::IActiv
     // configuration
     const char *displayStringTextFormat = nullptr;
     bool sendRawBytes = false;
+    bool allowNonstandardBitrate = true;
     FcsMode fcsMode = FCS_MODE_UNDEFINED;
     EthernetModes::EthernetMode curEtherDescr = EthernetModes::nullEthernetMode; // constants for the current Ethernet mode, e.g. txrate
     simtime_t halfBitTime = SIMTIME_ZERO; // transmission time of a half bit

src/inet/linklayer/ethernet/basic/EthernetCsmaMac.ned

@@ -106,6 +106,7 @@ module EthernetCsmaMac like IEtherMac
                                             // ones with matching destination MAC address
         bool duplexMode;                    // selects full-duplex (true) or half-duplex (false) operation
         bool frameBursting = default(true); // enable/disable frame bursting mode in Gigabit Ethernet
+        bool allowNonstandardBitrate = default(false); // allows any bitrate and uses first larger bitrate specified parameters
         int mtu @unit(B) = default(1500B);
         string fcsMode @enum("declared","computed");
         @lifecycleSupport;

src/inet/linklayer/ethernet/basic/EthernetMac.ned

@@ -113,6 +113,7 @@ module EthernetMac like IEtherMac
                                             // ones with matching destination MAC address
         bool duplexMode;                    // must be set to "true", as EthernetMac does not support half-duplex operation
                                             // (parameter is present to reduce the risk of accidental misconfiguration)
+        bool allowNonstandardBitrate = default(false); // allows any bitrate and uses first larger bitrate specified parameters
         int mtu @unit(B) = default(1500B);
         string fcsMode @enum("declared","computed");
         @lifecycleSupport;