/// <summary>
/// Method removes DPC from powered on servers
/// </summary>
private static void RemoveAllBladeDpc()
{
for (int bladeIndex = 0; bladeIndex < ConfigLoaded.Population; bladeIndex++)
{
byte bladeId = (byte)(bladeIndex + 1);
if (ChassisState.BladePower[bladeIndex].GetCachedBladePowerState().BladePowerState == 0x01) // PowerState.On
{
// Spec 1.86 adds optimization there by current state of PsuAlert
// does not need to be queried to disable
PsuAlert psuAlert = WcsBladeFacade.GetPsuAlert(bladeId);
if (psuAlert.CompletionCode == 0x00)
{
BmcPsuAlertAction bmcAction = BmcPsuAlertAction.DpcOnly;
if (psuAlert.BmcProchotEnabled)
{
bmcAction = BmcPsuAlertAction.ProcHotAndDpc;
}
// disable DPC.
WcsBladeFacade.ActivatePsuAlert(bladeId, psuAlert.AutoProchotEnabled, bmcAction, true);
}
}
}
}
/// <summary>
/// Send Smbus payload to Fpga Mezz via MasterWriteRead
/// </summary>
/// <param name="bladeId"></param>
/// <param name="channel"></param>
/// <param name="slaveId"></param>
/// <param name="count"></param>
/// <param name="writeData"></param>
/// <param name="cmd"></param>
/// <returns>SmbusWriteRead</returns>
private static Ipmi.SmbusWriteRead SendSmbusPayload(int bladeId, byte channel, byte slaveId, byte count, byte[] writeData, string cmd)
{
Ipmi.SmbusWriteRead sendSmbusPayloadResponse = WcsBladeFacade.MasterWriteRead((byte)bladeId, channel, slaveId, count, writeData);
if (sendSmbusPayloadResponse.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteError(string.Format("{0}(): MasterWriteRead failed for bladeId {1} with completion code {2}",
cmd, bladeId, sendSmbusPayloadResponse.CompletionCode));
}
return(sendSmbusPayloadResponse);
}
internal static Contracts.StartSerialResponse StartBladeSerialSession(int bladeId, int timeoutInSecs)
{
Contracts.StartSerialResponse response = new Contracts.StartSerialResponse();
response.completionCode = Contracts.CompletionCode.Failure;
response.serialSessionToken = null;
Tracer.WriteInfo("BladeSerialSessionMetadata StartBladeSerialSession({0})", bladeId);
// If there is an already existing Blade serial session (indicated by a valid bladeId and a valid sessionToken), return failure with appropriate completion code
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken, ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken) != CompletionCode.Success)
{
Tracer.WriteError("StartBladeSerialSession({0}): Start failed because of already active session.", bladeId);
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
// Ipmi command to indicate start of serial session
// This has to be executed before Enabling comm. dev. safe mode otherwise this will fail
Ipmi.SerialMuxSwitch sms = WcsBladeFacade.SetSerialMuxSwitch((byte)bladeId, Ipmi.MuxSwtich.SwitchSystem);
// If set serial mux fails - reverse all operations
if (sms.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteError("BladeSerialSessionMetadata.StartBladeSerialSession({0}): Ipmi SetSerialMuxSwitch Failed", bladeId);
if (!CommunicationDevice.DisableSafeMode())
{
Tracer.WriteError("BladeSerialSessionMetadata.StartBladeSerialSession({0}): Unable to disable comm.dev. safe mode", bladeId);
}
// Whenever we disable safe mode, make sure that no more serial session activity may be performed - by reseting metadata
if (!BladeSerialSessionMetadata.ResetMetadata())
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession({0}): Unable to reset metadata", bladeId);
}
return(response);
}
byte[] randomNumber = new byte[8];
new System.Security.Cryptography.RNGCryptoServiceProvider().GetNonZeroBytes(randomNumber);
// Initialize Blade Serial Session MetaData - Init function does this automically
// This function acts as a serialization point - only one active thread can proceed beyond this
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken, bladeId, BitConverter.ToString(randomNumber), DateTime.Now) != CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
response.completionCode = Contracts.CompletionCode.Success;
response.serialSessionToken = BitConverter.ToString(randomNumber);
// Initializing TimeoutBladeSerialSessionInSecs with user defined session timeout
ConfigLoaded.TimeoutBladeSerialSessionInSecs = timeoutInSecs;
return(response);
}
/// <summary>
/// Reinitialize the sled and set chassis state
/// </summary>
private void ReInitialize(byte sledId)
{
// Serialize initialize and power behavior per sled
lock (ChassisState._lock[sledId - 1])
{
ChassisState.FailCount[sledId - 1] = 0; // reset fail count since we are going to reinitialize the blade
bool status = WcsBladeFacade.InitializeClient(sledId); // TODO: no completion code, only byte status returned
if (status != true)
{
// Initialization failed - move to fail state before retrying again
Tracer.WriteInfo("Reinitialization failed with code: {0} for Sled: {1}", status, sledId);
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Fail", sledId,
ChassisState.GetStateName(sledId));
ChassisState.SetBladeState((byte)sledId, (byte)BladeState.Fail);
// check power status to see if the blade was manually switched off or removed
BladePowerStatePacket response = ChassisState.BladePower[sledId - 1].GetBladePowerState();
// If the blade was turned off, set correct status / TODO: do we need this here?
if (response.BladePowerState == (byte)Contracts.PowerState.OFF)
{
Tracer.WriteInfo("SledId {0} is in hard power off state", sledId);
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> HardPowerOff", sledId,
ChassisState.GetStateName(sledId));
ChassisState.SetBladeState(sledId, (byte)BladeState.HardPowerOff);
}
}
else
{
// State change: I -> P
Tracer.WriteInfo("Reinitialization of Sled: {0} succeeded with status {1}", sledId, status);
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Probation", sledId,
ChassisState.GetStateName(sledId));
ChassisState.SetBladeState(sledId, (byte)BladeState.Probation);
// Initialize Blade Type (Type might have changed when Blades were reinserted)
if (WcsBladeFacade.clients.ContainsKey(sledId))
{
ChassisState.BladeTypeCache[sledId - 1] = (byte)WcsBladeFacade.clients[sledId].BladeClassification;
}
else
{
ChassisState.BladeTypeCache[sledId - 1] = (byte)BladeType.Unknown;
}
}
}
}
/// <summary>
/// BladeOff commands switches off blade through IPMI (soft blade off)
/// </summary>
/// <param name="bladeId"></param>
/// <returns></returns>
internal static bool BladeOff(int bladeId)
{
bool powerOffStatus = false;
// Soft power enable
byte softStatus = WcsBladeFacade.SetPowerState((byte)bladeId, Ipmi.IpmiPowerState.Off);
Tracer.WriteInfo("Soft poweroff status " + softStatus);
if (softStatus != (byte)CompletionCode.Success)
{
Tracer.WriteWarning("Blade Soft Power Off Failed with Completion Code {0:X}", softStatus);
}
else
{
powerOffStatus = true;
}
return(powerOffStatus);
}
/// <summary>
/// Initialize blades state (powered?) and type (compute/JBOD)
/// </summary>
private static void BladeInitialize()
{
// Get power status of enable pin for each blade and update blade state
for (byte deviceId = 1; deviceId <= MaxSledCount; deviceId++)
{
CheckPowerEnableState(deviceId);
}
// Initialize Wcs Blade - TODO: This initialize should return some status
WcsBladeFacade.Initialize(); // This method just creates IPMI Client Class for each blade.
Tracer.WriteInfo("BladeInitialize: IPMI Facade Initialized, Number of blades initialized: {0}", WcsBladeFacade.Initialized);
// check all client initialization status and update state
Tracer.WriteInfo("BladeInitialize: Checking client status for {0} blades", MaxSledCount);
for (byte deviceId = 1; deviceId <= MaxSledCount; deviceId++)
{
// TODO: How to check initialized status, now that this has become a function
if (WcsBladeFacade.clients[deviceId].Initialize()) // This method logs on to an IPMI session.
{
// If initialized is true, change state to probation
Tracer.WriteInfo("BladeInitialize: State Transition for blade {0}: {1} -> Probation",
deviceId, ChassisState.GetStateName(deviceId));
ChassisState.SetBladeState(deviceId, (byte)BladeState.Probation);
}
else
{
Tracer.WriteInfo("BladeInitialize: Blade not initialized: Blade {0}", deviceId);
}
}
if (WcsBladeFacade.Initialized > 0)
{
// Identify what kind of sleds these are
for (byte loop = 1; loop <= MaxSledCount; loop++)
{
byte deviceId = WcsBladeFacade.clients[loop].DeviceId;
ChassisState.BladeTypeCache[deviceId - 1] = (byte)WcsBladeFacade.clients[loop].BladeClassification;
}
}
}
private static void EnableDisableDefaultBladeOperations(int bladeId)
{
// TODO: Check blade type etc and Kill any serial session
// TODO: Add trace log messages
// Check to see if the blade is hard powered off
BladePowerStatePacket response = ChassisState.BladePower[bladeId - 1].GetBladePowerState();
if (response.CompletionCode != CompletionCode.Success)
{
// Log error here, and proceed to check blade state since we still want to check BMC soft power status
// even if blade enable read failed for whatever reason
Tracer.WriteError("EnableDisableDefaultBladeOperations: Blade {0} Power Enable state read failed (Completion Code: {1:X})",
bladeId, response.CompletionCode);
}
else if (response.BladePowerState == (byte)Contracts.PowerState.OFF)
{
// If blade is hard powered off, no further processing is necessary
return;
}
// If the blade is a Jbod, return since the operations done in this method do not apply for Jbods
if (ChassisState.GetBladeType((byte)bladeId) == (byte)BladeType.Jbod)
{
Tracer.WriteInfo("EnableDisableDefaultBladeOperations (Blade#{0}): Ignoring since it is a Jbod", bladeId);
return;
}
DatasafeOperationSupport.ProcessDatasafeAction(bladeId, ConfigLoaded.DatasafeOperationsEnabled ? DatasafeActions.EnableDatasafe :
DatasafeActions.DisableDatasafe);
if (ConfigLoaded.PsuAlertMonitorEnabled)
{
WcsBladeFacade.ActivatePsuAlert((byte)bladeId, true, BmcPsuAlertAction.ProcHotAndDpc, true);
}
else
{
WcsBladeFacade.ActivatePsuAlert((byte)bladeId, false, BmcPsuAlertAction.NoAction, true);
}
}
/// <summary>
/// Internal method to Power off blade
/// </summary>
/// <param name="bladeId">Blade ID(1-48)</param>
/// <returns>true/false if operation was success/failure</returns>
internal static bool PowerOff(int bladeId)
{
Tracer.WriteInfo("Received poweroff({0})", bladeId);
bool powerOffStatus = false;
BladePowerStatePacket bladePowerSwitchStatePacket = new BladePowerStatePacket();
// Serialize power off and power on, on the same lock variable per blade, so we prevent inconsistent power state behavior
lock (ChassisState.locker[bladeId - 1])
{
bladePowerSwitchStatePacket = ChassisState.BladePower[bladeId - 1].SetBladePowerState((byte)PowerState.OFF);
CompletionCode status = bladePowerSwitchStatePacket.CompletionCode;
// Sleep for specified amount of time after blade hard power off to prevent hardware inconsistent state
// - hot-swap controller not completely draining its capacitance leading to inconsistent power state issues
Thread.Sleep(ConfigLoaded.WaitTimeAfterBladeHardPowerOffInMsecs);
Tracer.WriteInfo("PowerOff: Return: {0}", status);
if (status != CompletionCode.Success)
{
Tracer.WriteError("PowerOff: Blade Hard Power Off Failed with Completion code {0:X}", status);
powerOffStatus = false;
}
else
{
powerOffStatus = true;
// set state to Hard Power Off
Tracer.WriteInfo("PowerOff: State Transition for blade {0}: {1} -> HardPowerOff", bladeId,
ChassisState.GetStateName((byte)bladeId));
ChassisState.SetBladeState((byte)bladeId, (byte)BladeState.HardPowerOff);
ChassisState.PowerFailCount[bladeId - 1] = 0;
// Clear blade type and cache
ChassisState.BladeTypeCache[bladeId - 1] = (byte)BladeType.Unknown;
WcsBladeFacade.ClearBladeClassification((byte)bladeId);
}
}
return(powerOffStatus);
}
protected override void OnStop()
{
if (serviceHost != null)
{
serviceHost.Close();
serviceHost = null;
}
Tracer.WriteInfo("OnStop: Service closed");
RequestAdditionalTime(60 * 1000); // This is to prevent Windows service from timeouts
// Release Chassis Manager threads
this.Release();
Tracer.WriteInfo("OnStop: Chassis Manager threads stopped");
// Try to gracefully Close Open Ipmi sessions
WcsBladeFacade.Release();
Tracer.WriteInfo("OnStop: WcsBladeFacade released");
// Release the communication device layer holds
CommunicationDevice.Release();
Tracer.WriteInfo("OnStop: Communication Device released");
}
internal static Contracts.ChassisResponse StopBladeSerialSession(int bladeId, string sessionToken, bool forceKill = false)
{
Contracts.ChassisResponse response = new Contracts.ChassisResponse();
response.completionCode = Contracts.CompletionCode.Failure;
Tracer.WriteInfo("BladeSerialSessionMetadata.Received Stopbladeserialsession({0})", bladeId);
// If there is NOT an already existing Blade serial session (indicated by a invalid bladeId and a invalid sessionToken), return failure with appropriate completion code
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken,
ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken) == CompletionCode.Success)
{
Tracer.WriteError("StopBladeSerialSession({0}): Stop failed because of no active session.", bladeId);
response.completionCode = Contracts.CompletionCode.NoActiveSerialSession;
return(response);
}
// Normal scenario when forcekill option is not true.. check for bladeid correctness and if it currently holds the serial session
if (!forceKill)
{
if (ChassisManagerUtil.CheckBladeId((byte)bladeId) != (byte)CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.ParameterOutOfRange;
return(response);
}
// If this bladeid do not currently hold the serial session, return failure
if (CompareAndSwapMetadata(bladeId, sessionToken, bladeId, sessionToken) != CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
}
// Communication device has to come out of safe mode - should allow IPMI commands to go to the BMC
if (!CommunicationDevice.DisableSafeMode())
{
Tracer.WriteError(
"BladeSerialSessionMetadata.StopBladeSerialSession({0}): CommunicationDevice.DisableSafeMode Failed",
bladeId);
}
Ipmi.SerialMuxSwitch rms;
// If forcekill parameter is false, then use the bladeid that is passed by the user
if (!forceKill)
{
rms = WcsBladeFacade.ResetSerialMux((byte)bladeId);
}
// If forcekill parameter is true, then use the bladeid that currently holds the serial session
else
{
rms = WcsBladeFacade.ResetSerialMux((byte)BladeSerialSessionMetadata.bladeId);
}
if (rms.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession({0}): Ipmi ReSetSerialMuxSwitch Failed", bladeId);
}
if (!BladeSerialSessionMetadata.ResetMetadata())
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession: Unable to reset metadata");
}
response.completionCode = Contracts.CompletionCode.Success;
// Resetting TimeoutBladeSerialSessionInSecs to 0 to account for default or user provided session timeout value
ConfigLoaded.TimeoutBladeSerialSessionInSecs = 0;
return(response);
}
/// <summary>
/// Attempt to resolve Psu Faults
/// </summary>
private static Dictionary <byte, PsuAlertFaultStatus> PsuAlertRemediate(Dictionary <byte, PsuAlertFaultType> psuFailures)
{
Dictionary <byte, PsuAlertFaultStatus> failedPsu = new Dictionary <byte, PsuAlertFaultStatus>();
foreach (KeyValuePair <byte, PsuAlertFaultType> psu in psuFailures)
{
// If firmware update is in progress, skip this PSU
if (ChassisState.PsuFwUpdateInProgress[psu.Key - 1])
{
continue;
}
lock (ChassisState.psuLock[psu.Key - 1])
{
// Log PSU faults
ChassisState.Psu[psu.Key - 1].LogPsuFaultStatus();
// Clear PSU faults, which will clear PSU_ALERT
CompletionCode clearAlert = ClearPsuFault(psu.Key);
if (clearAlert != CompletionCode.Success)
{
// PSU clear faults failed. Log failure and continue to next PSU.
failedPsu.Add(psu.Key, PsuAlertFaultStatus.PsuClearFaultFailed);
Tracer.WriteError("PsuAlertRemediate: ClearPsuFault failed on PsuId: {0}", psu.Key);
continue;
}
if (psu.Value == PsuAlertFaultType.PsuFailure)
{
// Check that the PSU is on
PsuStatusPacket psuStatus = ChassisState.Psu[psu.Key - 1].GetPsuStatus();
if (psuStatus.CompletionCode != CompletionCode.Success)
{
failedPsu.Add(psu.Key, PsuAlertFaultStatus.PsuFault);
Tracer.WriteError("PsuAlertRemediate: GetPsuStatus on PSU ({0}) failed with return code {1}",
psu.Key, psuStatus.CompletionCode);
}
else
{
if (psuStatus.PsuStatus == (byte)Contracts.PowerState.ON)
{
// Check PSU power output
PsuPowerPacket power = ChassisState.Psu[psu.Key - 1].GetPsuPower();
if ((power.CompletionCode == CompletionCode.Success) && (power.PsuPower != 0))
{
Tracer.WriteInfo("PsuStatus clear faults succeeded. Psu: {0} drawing power: {1} Watts",
psu.Key, power.PsuPower);
}
else
{
// PSU is not outputting power.
failedPsu.Add(psu.Key, PsuAlertFaultStatus.PsuNoOutputPower);
Tracer.WriteError("PsuAlertRemediate failed Psu. PsuId: {0} Psu Error State: {1}",
psu.Key, PsuAlertFaultStatus.PsuNoOutputPower.ToString());
}
}
else
{
// PSU is turned off.
failedPsu.Add(psu.Key, PsuAlertFaultStatus.PsuPowerOff);
Tracer.WriteError("PsuAlertRemediate failed Psu. PsuId: {0} Psu Error State: {1}",
psu.Key, PsuAlertFaultStatus.PsuPowerOff.ToString());
}
}
}
else if ((ConfigLoaded.BatteryMonitoringEnabled) && (ChassisState.Psu[(psu.Key - 1)] is EmersonPsu))
{
// convert psu from base class object
EmersonPsu emersonPsu = (EmersonPsu)ChassisState.Psu[(psu.Key - 1)];
if (psu.Value == PsuAlertFaultType.BatteryFault)
{
// clear battery fault status
CompletionCode clearFault = emersonPsu.ClearBatteryFaultIndicator();
if (clearFault == CompletionCode.Success)
{
EmersonPsu.BatteryFaultIndicatorPacket faultIndicator = emersonPsu.GetBatteryFaultIndicator();
if (faultIndicator.BatteryFault == 1)
{
if (!failedPsu.ContainsKey(emersonPsu.PsuId))
{
// Psu Clear faults did not succeed.
failedPsu.Add(psu.Key, PsuAlertFaultStatus.BatteryFault);
}
Tracer.WriteError("PsuAlertRemediate failed to clear battery fault. PsuId: {0} Battery Error State: {1}",
psu.Key, PsuAlertFaultStatus.BatteryFault.ToString());
}
}
}
else if (psu.Value == PsuAlertFaultType.OnBattery && ConfigLoaded.NumBatteries > 0)
{
// Check if we need to trigger delegate to process battery status
if (ConfigLoaded.ProcessBatteryStatus)
{
double sumBatteryChargeLevel = 0;
ChassisEnergyStorageStatus status = null;
// list to store battery charge levels
List <string> batteryStates = new List <string>();
// battery present or not, set to true if even one battery is present.
// default to false
bool isBatteryPresent = false;
// Calculate average battery charge level
for (int index = 1; index <= ConfigLoaded.NumBatteries; index++)
{
status = ChassisState.GetEnergyStorageStatus((byte)index);
// Add to the list battery charge levels
batteryStates.Add(status.State.ToString());
// If even one battery is present, set flag to true
if (status.Present)
{
isBatteryPresent = true;
}
// If battery state is not unknown, add up the charge level.
if (status.State != EnergyStorageState.Unknown)
{
sumBatteryChargeLevel += status.PercentCharge;
}
}
double avgChargeLevel = (sumBatteryChargeLevel / ConfigLoaded.NumBatteries);
// Process battery status if battery discharge time is greater than the allowed discharge time
// from app.config( default 35 seconds) or Average battery charge level is below a given threshold value.
if (BatteryDischargeTimer.Elapsed > new System.TimeSpan(0, 0, ConfigLoaded.BatteryDischargeTimeInSecs) ||
avgChargeLevel < ConfigLoaded.BatteryChargeLevelThreshold)
{
// Invoke method to trigger NVDIMM backup for critical battery status
ThreadPool.QueueUserWorkItem(new WaitCallback(ChassisManagerInternal.ProcessCriticalBatteryStatus));
}
// Calculate backup energy available per blade and per NVDIMM
double bladeEnergy = (ConfigLoaded.NumPsus * BATT_POUT_MAX * BATT_OP_TIME_100_LOAD * avgChargeLevel) /
ConfigLoaded.Population;
double nvdimmEnergy = (ConfigLoaded.NumPsus * BATT_POUT_EXTENDED * BATT_OP_TIME_75W_LOAD) /
(ConfigLoaded.Population * ConfigLoaded.NvDimmPerBlade);
// Scale the values
bladeEnergy = bladeEnergy / ENERGY_STORAGE_SCALING_JOULES;
nvdimmEnergy = nvdimmEnergy / ENERGY_STORAGE_SCALING_JOULES;
// Send battery status to BMC, check returned completion code for success
Dictionary <byte, CompletionCode> results = WcsBladeFacade.BroadcastSetEnergyStorage
(isBatteryPresent, GetBatteryStateToBroadcast(batteryStates), ENERGY_STORAGE_SCALING_JOULES, (ushort)bladeEnergy, (byte)nvdimmEnergy);
// Check if broadcast failed for any blade, if yes log error.
for (int index = 1; index <= ConfigLoaded.Population; index++)
{
CompletionCode code;
if (results.TryGetValue((byte)index, out code))
{
// If completion code returned is not success
if (code != CompletionCode.Success)
{
Tracer.WriteError("PsuMonitor: ProcessBatteryStatus: " +
"Failed to update battery status to BMC for blade: " + index +
", completion code returned: " + code);
}
}
else
{
// If blade entry does not exist.
Tracer.WriteError("PsuMonitor: ProcessBatteryStatus : " +
"Failed to update battery status to BMC for blade: " + index);
}
}
}
}
}
} // lock...
} // foreach...
return(failedPsu);
}
/// <summary>
/// Function that gets fan speed requirements
/// from all blades. It also updates the blade states.
/// </summary>
private static void GetAllBladePwmRequirements()
{
// Rate is required to timestep over each individual Blade call
double rate = (double)getBladePwmReqtTimePeriodInMilliseconds / (double)MaxSledCount;
double timeDiff = 0;
for (byte blade = 1; blade <= MaxSledCount; blade++)
{
// Handle shutdown state
if (ChassisState.ShutDown)
{
return;
}
// default PWM setting
byte PWM = (byte)ConfigLoaded.MinPWM;
// Query blade type from IPMI layer
ChassisState.BladeTypeCache[blade - 1] = (byte)WcsBladeFacade.clients[blade].BladeClassification;
// wait for rate limiter which includes the previous time difference for sensor get, and then issue get fan requirement
double sleepTime = rate - timeDiff;
if (sleepTime > rate)
{
sleepTime = rate;
}
if (sleepTime > 0)
{
Thread.Sleep(TimeSpan.FromMilliseconds(sleepTime));
}
Tracer.WriteInfo("GetBladeRequirement called at {0} for BladeId {1} (state: {2})", DateTime.Now, blade,
ChassisState.GetStateName(blade));
// Check for the condition where known state is hardpoweroff, but someone plugged a new blade in
if (ChassisState.GetBladeState(blade) == (byte)BladeState.HardPowerOff)
{
CheckPowerEnableState(blade);
}
// Log Start time
DateTime startTime = DateTime.Now;
#region Check fail State -> Initialize
// If blade was in Fail state
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Fail)
{
// If failed count is greater than a maximum value, we move it to Initialization state
if (ChassisState.FailCount[blade - 1] > ConfigLoaded.MaxFailCount)
{
// Move to Initialization state so that this blade could be reinitialized
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for blade {0}: {1} -> Initialization", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Initialization);
}
else
{
// Moving out of Fail state - First we use a light-weight get GUID to check whether the blade is there.
// do not allow retries on Get System Guid
DeviceGuid guid = WcsBladeFacade.GetSystemGuid(blade, false);
if (guid.CompletionCode == (byte)CompletionCode.Success)
{
Tracer.WriteInfo("GetAllBladePwmRequirements: GUID present for blade {0}, GUID: {1}", blade, guid.Guid.ToString());
DeviceGuid cachedGuid = WcsBladeFacade.GetCachedGuid(blade);
if (guid.Guid == cachedGuid.Guid)
{
// Change state to Probation and assume the system was in fail due to timeout.
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for blade {0}: {1} -> Probation", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Probation);
}
else
{
// Change state to Initialization as the device has changed.
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for blade {0}: {1} -> Probation", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Initialization);
}
}
else
{
Tracer.WriteInfo("GetAllBladePwmRequirements: Get System GUID returns a bad completion status: {0}", guid.CompletionCode);
}
}
// Increase time spent in Fail state everytime we are in this state
ChassisState.FailCount[blade - 1]++;
}
#endregion
#region Move Initialize -> Probation
// Handles Initialization
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Initialization)
{
BladePowerStatePacket powerstate = ChassisState.BladePower[blade - 1].GetCachedBladePowerState();
if (powerstate.CompletionCode == 0)
{
if (powerstate.DecompressionTime == 0)
{
// Will result in Hard Power off or Probation
ReInitialize(blade);
}
}
}
#endregion
// Normal operation - possible states are probation or healthy
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Probation ||
ChassisState.GetBladeState(blade) == (byte)BladeState.Healthy)
{
#region Jbod (no sensor reading)
if (ChassisState.GetBladeType(blade) == (byte)BladeType.Jbod)
{
// Do not allow retries on system guid.
DeviceGuid guid = WcsBladeFacade.GetSystemGuid(blade, false);
if (guid.CompletionCode == (byte)CompletionCode.Success)
{
Tracer.WriteInfo("GetAllBladePwmRequirements: GUID present for JBOD {0}, GUID: {1}",
blade, guid.Guid.ToString());
// Change state to Healthy
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Probation)
{
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for JBOD {0}: {1} -> Healthy",
blade, ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Healthy);
}
}
else
{
Tracer.WriteInfo("GetAllBladePwmRequirements: Get System GUID for JBOD {0} failed with status {1}",
blade, guid.CompletionCode);
// Set it to failed state, where we will retry guids and reinitialize if needed
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for JBOD {0}: {1} -> Fail",
blade, ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Fail);
}
// No need to check for sensor reading, just continue
continue;
}
#endregion
#region Server -> Get PWM move to Healthy or move to Fail
// Call temperature reading list command
SensorReading Temps = WcsBladeFacade.GetSensorReading((byte)blade, (byte)ConfigLoaded.InputSensor, PriorityLevel.System);
if (Temps.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteWarning("GetAllBladePwmRequirements: BladeId: {0} - GetSensorReading for temperature failed with code {1:X}",
blade, Temps.CompletionCode);
// Move to Fail state if no readings were obtained
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for blade {0}: {1} -> Fail", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Fail);
}
else
{
Tracer.WriteInfo("GetAllBladePwmRequirements: #### BladeId = " + blade + " Sensor id= " + ConfigLoaded.InputSensor +
" Sensor reading = " + Temps.Reading + " Raw = " + Temps.RawReading +
", LowerNonCritical= " + ConfigLoaded.SensorLowThreshold + ", UpperNonCritical= " + ConfigLoaded.SensorHighThreshold);
// Handle state logic if needed
// Probation state should be shifted to Healthy since there was no timeout, & sensorread succeeded
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Probation)
{
// Change state to healthy
Tracer.WriteInfo("GetAllBladePwmRequirements: State Transition for blade {0}: {1} -> Healthy",
blade, ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Healthy);
ChassisState.FailCount[blade - 1] = 0; // reset the fail count
// When a blade transitions to 'Healthy' state, enable/disable default blade operations
EnableDisableDefaultBladeOperations(blade);
}
if (ConfigLoaded.InputSensor != 1) // Non-PWM sensor.
{
PWM = GetPwmFromTemperature(Temps.Reading,
ConfigLoaded.SensorLowThreshold,
ConfigLoaded.SensorHighThreshold);
}
else
{
// PWM should never be higher or lower than the threshold.
if (Temps.Reading < ConfigLoaded.MinPWM || Temps.Reading > ConfigLoaded.MaxPWM)
{
Tracer.WriteWarning("PWM value " + Temps.Reading + " on blade " + blade +
" is out of range (lowThreshold: " + ConfigLoaded.MinPWM +
" - highThreshold: " + ConfigLoaded.MaxPWM);
PWM = (byte)ConfigLoaded.MinPWM;
}
else
{
PWM = (byte)Temps.Reading;
}
}
Tracer.WriteInfo("PWM value on blade {0} for Sensor {1} = {2}", blade, InputSensor, PWM);
}
#endregion
}
// write value into requirements table
BladeRequirementTable[blade - 1] = PWM;
// Log end time and capture time of execution for sensor get command
DateTime endTime = DateTime.Now;
timeDiff = endTime.Subtract(startTime).TotalMilliseconds; // convert time difference into milliseconds
}
}
/// <summary>
/// Function that gets all the fan speed requirements
/// from the Blade. It also updates the balde state
/// </summary>
private void GetAllBladePwmRequirements()
{
// Rate is required to timestep over each individual Blade call
double rate = (double)GetTimePeriod / (double)MaxSledCount;
double timeDiff = 0;
for (byte blade = 1; blade <= MaxSledCount; blade++)
{
// Handle shutdown state
if (ChassisState.ShutDown)
{
return;
}
// default PWM setting
byte PWM = (byte)ConfigLoaded.MinPWM;
// Query blade type from IPMI layer
ChassisState.BladeTypeCache[blade - 1] = (byte)WcsBladeFacade.clients[blade].BladeClassification;
// wait for rate limiter which includes the previous time difference for sensor get, and then issue get fan requirement
double sleepTime = rate - timeDiff;
if (sleepTime > rate)
{
sleepTime = rate;
}
if (sleepTime > 0)
{
Thread.Sleep(TimeSpan.FromMilliseconds(sleepTime));
}
if (CommunicationDevice.IsSafeMode())
{
// Do not perform any sensor reading - continue in the for loop
Tracer.WriteInfo("Monitoring thread: Safe Mode, Skipping sensor read");
continue;
}
Tracer.WriteInfo("GetBladeRequirement called at {0} for sledId {1} (state: {2})", DateTime.Now, blade,
ChassisState.GetStateName(blade));
// Check for the condition where known state is hardpoweroff, but someone plugged a new blade in
if (ChassisState.GetBladeState(blade) == (byte)BladeState.HardPowerOff)
{
ChassisState.PowerFailCount[blade - 1]++;
// TODO: identify if this period is sufficient to do this check
if (ChassisState.PowerFailCount[blade - 1] > (ConfigLoaded.MaxRetries * ConfigLoaded.Population))
{
CheckPowerEnableState(blade);
ChassisState.PowerFailCount[blade - 1] = 0;
}
}
// Log Start time
DateTime startTime = DateTime.Now;
// If blade was in Fail state
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Fail)
{
// If failed count is greater than a maximum value, we move it to Initialization state
if (ChassisState.FailCount[blade - 1] > ConfigLoaded.MaxFailCount)
{
// Move to Initialization state so that this sled could be reinitialized
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Initialization", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Initialization);
}
else
{
// Moving out of Fail state - First we use a light-weight get GUID to check whether the blade is there
DeviceGuid guid = WcsBladeFacade.GetSystemGuid(blade);
if (guid.CompletionCode == (byte)CompletionCode.Success)
{
Tracer.WriteInfo("GUID present for sled {0}, GUID: {1}", blade, guid.Guid.ToString());
// Change state to Probation
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Probation", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Probation);
}
else
{
Tracer.WriteInfo("Get System GUID returns a bad completion status: {0}", guid.CompletionCode);
}
}
// Increase time spent in Fail state everytime we are in this state
ChassisState.FailCount[blade - 1]++;
}
// Handles Initialization
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Initialization)
{
this.ReInitialize(blade);
}
// Normal operation - possible states are probation or healthy
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Probation ||
ChassisState.GetBladeState(blade) == (byte)BladeState.Healthy)
{
if (ChassisState.GetBladeType(blade) == (byte)BladeType.Jbod)
{
DeviceGuid guid = WcsBladeFacade.GetSystemGuid(blade);
if (guid.CompletionCode == (byte)CompletionCode.Success)
{
Tracer.WriteInfo("GUID present for jbod {0}, GUID: {1}", blade, guid.Guid.ToString());
// Change state to Probation
Tracer.WriteInfo("State Transition for jbod {0}: {1} -> Healthy", blade, ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Healthy);
}
else
{
Tracer.WriteInfo("Get System GUID for jbod {0} failed with status {1}", blade, guid.CompletionCode);
// Set it to failed state, where we will retry guids and reinitialize if needed
Tracer.WriteInfo("State Transition for jbod {0}: {1} -> Fail", blade, ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Fail);
}
// No need to check for sensor reading, just continue
continue;
}
// Call temperature reading list command
SensorReading Temps = WcsBladeFacade.GetSensorReading((byte)blade, (byte)ConfigLoaded.InputSensor, PriorityLevel.System);
if (Temps.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteWarning("SledId: {0} - getTempSensorReading failed with code {1:X}", blade, Temps.CompletionCode);
// Move to Fail state if no readings were obtained
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Fail", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Fail);
}
else
{
Tracer.WriteInfo("#### Sledid= " + blade + " Sensor id= " + ConfigLoaded.InputSensor + " Sensor reading= " +
Temps.Reading + " Raw= " + Temps.RawReading + ", LowerNonCritical= " +
ConfigLoaded.SensorLowThreshold + ", UpperNonCritical= " + ConfigLoaded.SensorHighThreshold);
// Handle state logic if needed
// Probation state should be shifted to Healthy since there was no timeout, & sensorread succeeded
if (ChassisState.GetBladeState(blade) == (byte)BladeState.Probation)
{
// Change state to healthy
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Healthy", blade,
ChassisState.GetStateName(blade));
ChassisState.SetBladeState(blade, (byte)BladeState.Healthy);
ChassisState.FailCount[blade - 1] = 0; // reset the fail count
}
PWM = GetPwmFromTemperature(Temps.Reading,
ConfigLoaded.SensorLowThreshold,
ConfigLoaded.SensorHighThreshold);
Tracer.WriteInfo("PWM value for Sensor {0} = {1}", InputSensor, PWM);
}
}
// write value into requirements table
BladeRequirementTable[blade - 1] = PWM;
// Log end time and capture time of execution for sensor get command
DateTime endTime = DateTime.Now;
timeDiff = endTime.Subtract(startTime).TotalMilliseconds; // convert time difference into milliseconds
}
}
/// <summary>
/// Initialize Chassis constants and configs
/// </summary>
internal byte Initialize()
{
Tracer.WriteInfo("Initializing state");
byte status = (byte)CompletionCode.UnspecifiedError;
ChassisState.Initialize();
Tracer.WriteInfo("Initializing Communication Device");
// Initializer lower layer communication device
CompletionCode completionCode = CommunicationDevice.Init();
if (CompletionCodeChecker.Failed(completionCode))
{
Tracer.WriteWarning("Initialization failed: {0}", completionCode);
int loop = 0;
// Retry 3 times before failing completely
for (loop = 0; loop < ConfigLoaded.MaxRetries; loop++)
{
Tracer.WriteInfo("Initialization Retry: {0}", loop);
completionCode = CommunicationDevice.Init();
if (CompletionCodeChecker.Succeeded(completionCode))
{
break;
}
}
if (loop == ConfigLoaded.MaxRetries)
{
Tracer.WriteError("Re-attempt at Communication Device Initialization failed with code: {0}", completionCode);
return(status);
}
}
if (CompletionCodeChecker.Succeeded(completionCode))
{
Tracer.WriteInfo("Communication Device Initialized");
status = (byte)CompletionCode.Success;
}
// Get power status of enable pin for each blade and update blade state
for (byte deviceId = 1; deviceId <= MaxSledCount; deviceId++)
{
CheckPowerEnableState(deviceId);
}
// Initialize Wcs Blade - TODO: This initialize should return some status
WcsBladeFacade.Initialize(); // This method just creates IPMI Client Class for each blade.
Tracer.WriteInfo("IPMI Facade Initialized, Number of blades initialized: {0}", WcsBladeFacade.Initialized);
// check all client initialization status and update state
Tracer.WriteInfo("Checking client status for {0} blades", MaxSledCount);
for (byte deviceId = 1; deviceId <= MaxSledCount; deviceId++)
{
// TODO: How to check initialized status, now that this has become a function
if (WcsBladeFacade.clients[deviceId].Initialize()) // This method logs on to an IPMI session.
{
// If initialized is true, change state to probation
Tracer.WriteInfo("State Transition for Sled {0}: {1} -> Probation", deviceId,
ChassisState.GetStateName(deviceId));
ChassisState.SetBladeState(deviceId, (byte)BladeState.Probation);
}
else
{
Tracer.WriteInfo("Blade not initialized: Blade ", +deviceId);
}
}
Tracer.WriteInfo("Initializing Watchdog Timer");
// Initialize WatchDog Timer
ChassisState.Wdt.EnableWatchDogTimer();
Tracer.WriteInfo("Watchdog timer initialized");
// Initialize internal chassis manager tables
this.ChassisInternalInitialize();
return(status);
}
/// <summary>
/// Internal method to power cycle specified blade
/// </summary>
/// <param name="bladeId">Blade ID(1-48)</param>
/// <param name="offTime">time for which the blades will be powered off in seconds</param>
/// <returns>true/false indicating if blade operation was success/failure</returns>
internal static bool PowerCycle(int bladeId, uint offTime)
{
Tracer.WriteInfo("Received PowerCycle({0},{1})", bladeId, offTime);
bool powerStatus = false;
bool intervalStatus = WcsBladeFacade.SetPowerCycleInterval((byte)bladeId, (byte)offTime);
if (intervalStatus != true)
{
Tracer.WriteWarning("Blade PowerCycle Interval setting failed with Completion code {0:X}", intervalStatus);
return(powerStatus);
}
byte status = WcsBladeFacade.SetPowerState((byte)bladeId, Ipmi.IpmiPowerState.Cycle);
Tracer.WriteInfo("PowerCycle: SetPowerState Return: {0}", status);
// We want the blade to always power on when it receives a Power Cycle command.
// Some BMC implementations may not turn on the blade for Power Cycle if the blade
// is in the OFF state, and will return 0xD5 (Request parameter(s) not supported
// in present state) as recommended in the IPMI standard.
// Check for 0xD5 and manually turn on the blade.
if (status == 0xD5)
{
// Check that the blade is actually off
Ipmi.SystemStatus powerState = WcsBladeFacade.GetChassisState((byte)bladeId);
Tracer.WriteInfo("PowerCycle: GetChassisState Return: {0}, Blade State: {1}", powerState.CompletionCode, powerState.PowerState.ToString());
if (powerState.CompletionCode != 0)
{
Tracer.WriteError("PowerCycle: GetChassisState Failed with Completion code {0:X}", powerState.CompletionCode);
}
else
{
if (powerState.PowerState == Ipmi.IpmiPowerState.Off)
{
// Set blade on
if (BladeOn(bladeId))
{
Tracer.WriteInfo("PowerCycle: {0} SetBladeOn(): Blade soft power set to ON", bladeId);
powerStatus = true;
}
else
{
Tracer.WriteError("PowerCycle: {0} SetBladeOn(): Failed to set Blade soft power ON", bladeId);
}
}
else
{
// The blade is ON but the BMC returns 0xD5. Return error.
Tracer.WriteError("SetPowerState returned 0xD5 but blade is not Off. Blade state: {0}", powerState.PowerState);
}
}
}
else if (status != 0)
{
Tracer.WriteWarning("Blade PowerCycle Failed with Completion code {0:X}", status);
}
else
{
powerStatus = true;
}
return(powerStatus);
}
