skgepnmi.c

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 *	all instance of the OID will be set.
 *
 * Returns:
 *	SK_PNMI_ERR_OK           The request was successfully performed.
 *	SK_PNMI_ERR_GENERAL      A general severe internal error occured.
 *	SK_PNMI_ERR_TOO_SHORT    The passed buffer is too short to contain
 *	                         the correct data (e.g. a 32bit value is
 *	                         needed, but a 16 bit value was passed).
 *	SK_PNMI_ERR_BAD_VALUE    The passed value is not in the valid
 *	                         value range.
 *	SK_PNMI_ERR_READ_ONLY    The OID is read-only and cannot be set.
 *	SK_PNMI_ERR_UNKNOWN_OID  The requested OID is unknown.
 *	SK_PNMI_ERR_UNKNOWN_INST The requested instance of the OID doesn't
 *                               exist (e.g. port instance 3 on a two port
 *	                         adapter.
 */

int SkPnmiPreSetVar(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
SK_U32 Id,		/* Object ID that is to be processed */
void *pBuf,		/* Buffer which stores the mgmt data to be set */
unsigned int *pLen,	/* Total length of mgmt data */
SK_U32 Instance)	/* Instance (1..n) that is to be set or -1 */
{
	SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
		("PNMI: SkPnmiPreSetVar: Called, Id=0x%x, BufLen=%d\n",
		Id, *pLen));

	return (PnmiVar(pAC, IoC, SK_PNMI_PRESET, Id, (char *)pBuf, pLen,
		Instance));
}

/*****************************************************************************
 *
 * SkPnmiSetVar - Sets the value of a single OID
 *
 * Description:
 *	Calls a general sub-function for all this stuff. The preset does
 *	the same as a set, but returns just before finally setting the
 *	new value. This is usefull to check if a set might be successfull.
 *	If as instance a -1 is passed, an array of values is supposed and
 *	all instance of the OID will be set.
 *
 * Returns:
 *	SK_PNMI_ERR_OK           The request was successfully performed.
 *	SK_PNMI_ERR_GENERAL      A general severe internal error occured.
 *	SK_PNMI_ERR_TOO_SHORT    The passed buffer is too short to contain
 *	                         the correct data (e.g. a 32bit value is
 *	                         needed, but a 16 bit value was passed).
 *	SK_PNMI_ERR_BAD_VALUE    The passed value is not in the valid
 *	                         value range.
 *	SK_PNMI_ERR_READ_ONLY    The OID is read-only and cannot be set.
 *	SK_PNMI_ERR_UNKNOWN_OID  The requested OID is unknown.
 *	SK_PNMI_ERR_UNKNOWN_INST The requested instance of the OID doesn't
 *                               exist (e.g. port instance 3 on a two port
 *	                         adapter.
 */

int SkPnmiSetVar(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
SK_U32 Id,		/* Object ID that is to be processed */
void *pBuf,		/* Buffer which stores the mgmt data to be set */
unsigned int *pLen,	/* Total length of mgmt data */
SK_U32 Instance)	/* Instance (1..n) that is to be set or -1 */
{
	SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
		("PNMI: SkPnmiSetVar: Called, Id=0x%x, BufLen=%d\n", Id,
		*pLen));

	return (PnmiVar(pAC, IoC, SK_PNMI_SET, Id, (char *)pBuf, pLen,
		Instance));
}

/*****************************************************************************
 *
 * SkPnmiGetStruct - Retrieves the management database in SK_PNMI_STRUCT_DATA
 *
 * Description:
 *	Runs through the IdTable, queries the single OIDs and stores the
 *	returned data into the management database structure
 *	SK_PNMI_STRUCT_DATA. The offset of the OID in the structure
 *	is stored in the IdTable. The return value of the function will also
 *	be stored in SK_PNMI_STRUCT_DATA if the passed buffer has the
 *	minimum size of SK_PNMI_MIN_STRUCT_SIZE.
 *
 * Returns:
 *	SK_PNMI_ERR_OK           The request was successfully performed
 *	SK_PNMI_ERR_GENERAL      A general severe internal error occured
 *	SK_PNMI_ERR_TOO_SHORT    The passed buffer is too short to take
 *	                         the data.
 */

int SkPnmiGetStruct(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
void *pBuf,		/* Buffer which will store the retrieved data */
unsigned int *pLen)	/* Length of buffer */
{
	int		Ret;
	unsigned int	TableIndex;
	unsigned int	DstOffset;
	unsigned int	InstanceNo;
	unsigned int	InstanceCnt;
	SK_U32		Instance;
	unsigned int	TmpLen;
	char		KeyArr[SK_PNMI_VPD_ARR_SIZE][SK_PNMI_VPD_STR_SIZE];

	
	SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
		("PNMI: SkPnmiGetStruct: Called, BufLen=%d\n", *pLen));

	if (*pLen < SK_PNMI_STRUCT_SIZE) {

		if (*pLen >= SK_PNMI_MIN_STRUCT_SIZE) {

			SK_PNMI_SET_STAT(pBuf, SK_PNMI_ERR_TOO_SHORT,
				(SK_U32)(-1));
		}

		*pLen = SK_PNMI_STRUCT_SIZE;
		return (SK_PNMI_ERR_TOO_SHORT);
	}

	/* Update statistic */
	SK_PNMI_CHECKFLAGS("SkPnmiGetStruct: On call");

	if ((Ret = MacUpdate(pAC, IoC, 0, pAC->GIni.GIMacsFound - 1)) !=
		SK_PNMI_ERR_OK) {

		SK_PNMI_SET_STAT(pBuf, Ret, (SK_U32)(-1));
		*pLen = SK_PNMI_MIN_STRUCT_SIZE;
		return (Ret);
	}

	if ((Ret = RlmtUpdate(pAC, IoC)) != SK_PNMI_ERR_OK) {

		SK_PNMI_SET_STAT(pBuf, Ret, (SK_U32)(-1));
		*pLen = SK_PNMI_MIN_STRUCT_SIZE;
		return (Ret);
	}

	if ((Ret = SirqUpdate(pAC, IoC)) != SK_PNMI_ERR_OK) {

		SK_PNMI_SET_STAT(pBuf, Ret, (SK_U32)(-1));
		*pLen = SK_PNMI_MIN_STRUCT_SIZE;
		return (Ret);
	}

	/*
	 * Increment semaphores to indicate that an update was
	 * already done
	 */
	pAC->Pnmi.MacUpdatedFlag ++;
	pAC->Pnmi.RlmtUpdatedFlag ++;
	pAC->Pnmi.SirqUpdatedFlag ++;

	/* Get vpd keys for instance calculation */
	Ret = GetVpdKeyArr(pAC, IoC, &KeyArr[0][0], sizeof(KeyArr), &TmpLen);
	if (Ret != SK_PNMI_ERR_OK) {

		pAC->Pnmi.MacUpdatedFlag --;
		pAC->Pnmi.RlmtUpdatedFlag --;
		pAC->Pnmi.SirqUpdatedFlag --;

		SK_PNMI_CHECKFLAGS("SkPnmiGetStruct: On return");
		SK_PNMI_SET_STAT(pBuf, Ret, (SK_U32)(-1));
		*pLen = SK_PNMI_MIN_STRUCT_SIZE;
		return (SK_PNMI_ERR_GENERAL);
	}

	/* Retrieve values */
	SK_MEMSET((char *)pBuf, 0, SK_PNMI_STRUCT_SIZE);
	for (TableIndex = 0; TableIndex < sizeof(IdTable)/sizeof(IdTable[0]);
		TableIndex ++) {

		InstanceNo = IdTable[TableIndex].InstanceNo;

		for (InstanceCnt = 1; InstanceCnt <= InstanceNo;
			InstanceCnt ++) {

			DstOffset = IdTable[TableIndex].Offset +
				(InstanceCnt - 1) *
				IdTable[TableIndex].StructSize;

			/*
			 * For the VPD the instance is not an index number
			 * but the key itself. Determin with the instance
			 * counter the VPD key to be used.
			 */
			if (IdTable[TableIndex].Id == OID_SKGE_VPD_KEY ||
				IdTable[TableIndex].Id == OID_SKGE_VPD_VALUE ||
				IdTable[TableIndex].Id == OID_SKGE_VPD_ACCESS ||
				IdTable[TableIndex].Id == OID_SKGE_VPD_ACTION) {

				SK_PNMI_READ_U32(KeyArr[InstanceCnt - 1],
					Instance);
			}
			else {
				Instance = (SK_U32)InstanceCnt;
			}

			TmpLen = *pLen - DstOffset;
			Ret = IdTable[TableIndex].Func(pAC, IoC, SK_PNMI_GET,
				IdTable[TableIndex].Id, (char *)pBuf +
				DstOffset, &TmpLen, Instance, TableIndex);

			/*
			 * An unknown instance error means that we reached
			 * the last instance of that variable. Proceed with
			 * the next OID in the table and ignore the return
			 * code.
			 */
			if (Ret == SK_PNMI_ERR_UNKNOWN_INST) {

				break;
			}

			if (Ret != SK_PNMI_ERR_OK) {

				pAC->Pnmi.MacUpdatedFlag --;
				pAC->Pnmi.RlmtUpdatedFlag --;
				pAC->Pnmi.SirqUpdatedFlag --;

				SK_PNMI_CHECKFLAGS("SkPnmiGetStruct: On return");
				SK_PNMI_SET_STAT(pBuf, Ret, DstOffset);
				*pLen = SK_PNMI_MIN_STRUCT_SIZE;
				return (Ret);
			}
		}
	}

	pAC->Pnmi.MacUpdatedFlag --;
	pAC->Pnmi.RlmtUpdatedFlag --;
	pAC->Pnmi.SirqUpdatedFlag --;

	*pLen = SK_PNMI_STRUCT_SIZE;
	SK_PNMI_CHECKFLAGS("SkPnmiGetStruct: On return");
	SK_PNMI_SET_STAT(pBuf, SK_PNMI_ERR_OK, (SK_U32)(-1));
	return (SK_PNMI_ERR_OK);
}

/*****************************************************************************
 *
 * SkPnmiPreSetStruct - Presets the management database in SK_PNMI_STRUCT_DATA
 *
 * Description:
 *	Calls a general sub-function for all this set stuff. The preset does
 *	the same as a set, but returns just before finally setting the
 *	new value. This is usefull to check if a set might be successfull.
 *	The sub-function runs through the IdTable, checks which OIDs are able
 *	to set, and calls the handler function of the OID to perform the
 *	preset. The return value of the function will also be stored in
 *	SK_PNMI_STRUCT_DATA if the passed buffer has the minimum size of
 *	SK_PNMI_MIN_STRUCT_SIZE.
 *
 * Returns:
 *	SK_PNMI_ERR_OK           The request was successfully performed.
 *	SK_PNMI_ERR_GENERAL      A general severe internal error occured.
 *	SK_PNMI_ERR_TOO_SHORT    The passed buffer is too short to contain
 *	                         the correct data (e.g. a 32bit value is
 *	                         needed, but a 16 bit value was passed).
 *	SK_PNMI_ERR_BAD_VALUE    The passed value is not in the valid
 *	                         value range.
 */

int SkPnmiPreSetStruct(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
void *pBuf,		/* Buffer which contains the data to be set */
unsigned int *pLen)	/* Length of buffer */
{
	SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
		("PNMI: SkPnmiPreSetStruct: Called, BufLen=%d\n", *pLen));

	return (PnmiStruct(pAC, IoC, SK_PNMI_PRESET, (char *)pBuf, pLen));
}

/*****************************************************************************
 *
 * SkPnmiSetStruct - Sets the management database in SK_PNMI_STRUCT_DATA
 *
 * Description:
 *	Calls a general sub-function for all this set stuff. The return value
 *	of the function will also be stored in SK_PNMI_STRUCT_DATA if the
 *	passed buffer has the minimum size of SK_PNMI_MIN_STRUCT_SIZE.
 *	The sub-function runs through the IdTable, checks which OIDs are able
 *	to set, and calls the handler function of the OID to perform the
 *	set. The return value of the function will also be stored in
 *	SK_PNMI_STRUCT_DATA if the passed buffer has the minimum size of
 *	SK_PNMI_MIN_STRUCT_SIZE.
 *
 * Returns:
 *	SK_PNMI_ERR_OK           The request was successfully performed.
 *	SK_PNMI_ERR_GENERAL      A general severe internal error occured.
 *	SK_PNMI_ERR_TOO_SHORT    The passed buffer is too short to contain
 *	                         the correct data (e.g. a 32bit value is
 *	                         needed, but a 16 bit value was passed).
 *	SK_PNMI_ERR_BAD_VALUE    The passed value is not in the valid
 *	                         value range.
 */

int SkPnmiSetStruct(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
void *pBuf,		/* Buffer which contains the data to be set */
unsigned int *pLen)	/* Length of buffer */
{
	SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
		("PNMI: SkPnmiSetStruct: Called, BufLen=%d\n", *pLen));

	return (PnmiStruct(pAC, IoC, SK_PNMI_SET, (char *)pBuf, pLen));
}

/*****************************************************************************
 *
 * SkPnmiEvent - Event handler
 *
 * Description:
 *	Handles the following events:
 *	SK_PNMI_EVT_SIRQ_OVERFLOW     When a hardware counter overflows an
 *	                              interrupt will be generated which is
 *	                              first handled by SIRQ which generates a
 *	                              this event. The event increments the
 *	                              upper 32 bit of the 64 bit counter.
 *	SK_PNMI_EVT_SEN_XXX           The event is generated by the I2C module
 *	                              when a sensor reports a warning or
 *	                              error. The event will store a trap
 *	                              message in the trap buffer.
 *	SK_PNMI_EVT_CHG_EST_TIMER     The timer event was initiated by this
 *	                              module and is used to calculate the
 *	                              port switches per hour.
 *	SK_PNMI_EVT_CLEAR_COUNTER     The event clears all counters and
 *	                              timestamps.
 *	SK_PNMI_EVT_XMAC_RESET        The event is generated by the driver
 *	                              before a hard reset of the XMAC is
 *	                              performed. All counters will be saved
 *	                              and added to the hardware counter
 *	                              values after reset to grant continuous
 *	                              counter values.
 *	SK_PNMI_EVT_RLMT_PORT_UP      Generated by RLMT to notify that a port
 *	                              went logically up. A trap message will
 *	                              be stored to the trap buffer.
 *	SK_PNMI_EVT_RLMT_PORT_DOWN    Generated by RLMT to notify that a port
 *	                              went logically down. A trap message will
 *	                              be stored to the trap buffer.
 *	SK_PNMI_EVT_RLMT_PORT_SWITCH  Generated by RLMT to notify that the
 *	                              active port switched. PNMI will split
 *	                              this into two message ACTIVE_DOWN and
 *	                              ACTIVE_UP to be future compatible with
 *	                              load balancing and card fail over.
 *	SK_PNMI_EVT_RLMT_SEGMENTATION Generated by RLMT to notify that two
 *	                              spanning tree root bridges were
 *	                              detected. A trap message will be stored
 *	                              to the trap buffer.
 *	SK_PNMI_EVT_RLMT_ACTIVE_DOWN  Notifies PNMI that an active port went
 *	                              down. PNMI will not further add the
 *	                              statistic values to the virtual port.
 *	SK_PNMI_EVT_RLMT_ACTIVE_UP    Notifies PNMI that a port went up and
 *	                              is now an active port. PNMI will now
 *	                              add the statistic data of this port to
 *	                              the virtual port.
 *
 * Returns:
 *	Always 0
 */

int SkPnmiEvent(
SK_AC *pAC,		/* Pointer to adapter context */
SK_IOC IoC,		/* IO context handle */
SK_U32 Event,		/* Event-Id */
SK_EVPARA Param)	/* Event dependent parameter */
{
	unsigned int	PhysPortIndex;
	int		CounterIndex;
	int		Ret;
	SK_U16		MacStatus;
	SK_U64		OverflowStatus;
	SK_U64		Mask;
	SK_U32		MacCntEvent;
	SK_U64		Value;
	SK_U16		Register;
	SK_EVPARA	EventParam;
	SK_U64		NewestValue;
	SK_U64		OldestValue;
	SK_U64		Delta;
	SK_PNMI_ESTIMATE *pEst;


#ifdef DEBUG
	if (Event != SK_PNMI_EVT_XMAC_RESET) {

		SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_CTRL,
			("PNMI: SkPnmiEvent: Called, Event=0x%x, Param=0x%x\n",
			(unsigned long)Event, (unsigned long)Param.Para64));
	}
#endif
	SK_PNMI_CHECKFLAGS("SkPnmiEvent: On call");

	switch (Event) {

	case SK_PNMI_EVT_SIRQ_OVERFLOW:
		PhysPortIndex = (int)Param.Para32[0];
		MacStatus = (SK_U16)Param.Para32[1]