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HBA_RegisterCommonpFibreeChannelAHBA)InfoHBA_RegisterForAdapterEvents(3HBAAPI)

NAME
       HBA_RegisterForAdapterEvents, HBA_RegisterForAdapterAddEvents, HBA_Reg‐
       isterForAdapterPortEvents,	 HBA_RegisterForAdapterPortStatEvents,
       HBA_RegisterForTargetEvents, HBA_RegisterForLinkEvents, HBA_RemoveCall‐
       back - SNIA event handling functions

SYNOPSIS
       cc [ flag... ] file... -lHBAAPI [ library... ]
       #include <hbaapi.h>

       HBA_STATUS HBA_RegisterForAdapterEvents(void (*pCallback) (void *pData,
       HBA_WWN	PortWWN,  HBA_UINT32  eventType),  void *pUserData, HBA_HANDLE
       handle, HBA_CALLBACKHANDLE *pCallbackHandle);

       HBA_STATUS  HBA_RegisterForAdapterAddEvents(void	  (*pCallback)	 (void
       *pData,	 HBA_WWN  PortWWN,  HBA_UINT32	eventType),  void  *pUserData,
       HBA_CALLBACKHANDLE *pCallbackHandle);

       HBA_STATUS  HBA_RegisterForAdapterPortEvents(void  (*pCallback)	 (void
       *pData,	HBA_WWN	 PortWWN,  HBA_UINT32 eventType, HBA_UINT32 fabricPor‐
       tID), void *pUserData, HBA_HANDLE handle,  HBA_WWN  PortWWN,  HBA_CALL‐
       BACKHANDLE *pCallbackHandle);

       HBA_STATUS HBA_RegisterForAdapterPortStatEvents(void (*pCallback) (void
       *pData,	HBA_WWN	 PortWWN,  HBA_UINT32  eventType),  void   *pUserData,
       HBA_HANDLE   handle,   HBA_WWN	PortWWN,   HBA_PortStatistics	stats,
       HBA_UINT32 statType, HBA_CALLBACKHANDLE *pCallbackHandle);

       HBA_STATUS HBA_RegisterForTargetEvents(void (*pCallback) (void  *pData,
       HBA_WWN	hbaPortWWN,  HBA_WWN discoveredPortWWN, HBA_UINT32 eventType),
       void * pUserData, HBA_HANDLE handle, HBA_WWN hbaPortWWN,	 HBA_WWN  dis‐
       coveredPortWWN, HBA_CALLBACKHANDLE *pCallbackHandle, HBA_UINT32 allTar‐
       gets);

       HBA_STATUS HBA_RegisterForLinkEvents(void  (*pCallback)	(void  *pData,
       HBA_WWN	 adapterWWN,   HBA_UINT32   eventType,	 void  *  pRLIRBuffer,
       HBA_UINT32  RLIRBufferSize),   void   *pUserData,   void	  *PLIRBuffer,
       HBA_UINT32   RLIRBufferSize,   HBA_HANDLE   handle,  HBA_CALLBACKHANDLE
       *pCallbackHandle);

       HBA_STATUS HBA_RemoveCallback(HBA_CALLBACKHANDLE *pCallbackHandle);

PARAMETERS
       pCallback       A pointer to the entry of the callback routine.

		       pData

			   the pUserData that is passed in from	 registration.
			   This	 parameter  can be used to correlate the event
			   with the source of its event registration.

		       PortWWN

			   The Port WWN of the HBA  for	 which	the  event  is
			   being reported.

		       hbaPortWWN

			   The	Port WWN of the HBA for which the target event
			   is being reported.

		       discoveredPortWWN

			   The Port WWN of the target  for  which  the	target
			   event is being reported.

		       adapterWWN

			   The	Port  WWN of the of the HBA for which the link
			   event is being reported.

		       eventType

			   a value indicating  the  type  of  event  that  has
			   occured.

			   HBA_RegisterForAdapterEvents()

			       Possible	 values	 are  HBA_EVENT_ADAPTER_REMOVE
			       and HBA_EVENT_ADAPTER_CHANGE.

			   HBA_RegisterForAdaterAddEvents()

			       The	only	  possible	value	    is
			       HBA_EVENT_ADAPTER_ADD.

			   HBA_RegisterForAdaterPortEvents()

			       Possible	  values  are  HBA_EVENT_PORT_OFFLINE,
			       HBA_EVENT_PORT_ONLINE,  HBA_EVENT_PORT_NEW_TAR‐
			       GETS,	     HBA_EVENT_PORT_FABRIC,	   and
			       HBA_EVENT_PORT_UNKNOWN.

			   HBA_RegisterForAdapterPortStatEvents()

			       Possible values are HBA_EVENT_PORT_STAT_THRESH‐
			       OLD and HBA_EVENT_PORT_STAT_GROWTH.

			   HBA_RegisterForTargetEvents()

			       If  the	value is HBA_EVENT_LINK_INCIDENT, RLIR
			       has occured and information  is	in  the	 RLIR‐
			       Buffer.	      If       the	 value	    is
			       HBA_EVENT_LINK_UNKNOWN, a fabric link or topol‐
			       ogy  change has occured and was not detected by
			       RLIR.  The RLIRBuffer is ignored

			   HBA_RegisterForLinkEvents()

			       Possible values	are  HBA_EVENT_TARGET_OFFLINE,
			       HBA_EVENT_TARGET_ONLINE,		HBA_EVENT_TAR‐
			       GET_REMOVED, and HBA_EVENT_TARGET_UNKNOWN.

		       fabricPortID

			   If the event is of type HBA_EVENT_PORT_FABRIC, this
			   parameter will be the RSCN-affected Port ID page as
			   defined in FC-FS.  It  is  ignored  for  all	 other
			   event types.

		       pRLIRBuffer

			   A pointer to a buffer where RLIR data may be passed
			   to the callback function.  The buffer will be over‐
			   written for each fabric link callback function, but
			   will not be overwritten within a single call to the
			   callback function.

		       RLIRBufferSize

			   Size in bytes of the RLIRBuffer.

       pUserData       a  pointer  passed with each event to the callback rou‐
		       tine that can be used to correlate the event  with  the
		       source of its event registration

       pRLIRBuffer     A  pointer to a buffer where RLIR data may be passed to
		       the callback function.  The buffer will be  overwritten
		       for each fabric link callback function, but will not be
		       overwritten within a single call to the callback	 func‐
		       tion.

       RLIRBufferSize  Size in bytes of the RLIRBuffer.

       handle	       a  handle  to  the  HBA	that event callbacks are being
		       requested

       PortWWN	       The Port WWN of the HBA for which the  event  is	 being
		       reported.

       hbaPortWWN      The  Port  WWN  of the HBA of which the event callbacks
		       are being requested.

       stats	       an HBA_PortStatistics  structure	 which	indicates  the
		       counters	   to	 be   monitored.    If	 statType   is
		       HBA_EVENT_PORT_STAT_THRESHOLD, any non-null values  are
		       thresholds   for	  which	 to  watch.   If  statType  is
		       HBA_EVET_PORT_STAT_GROWTH,  any	non-null  values   are
		       growth rate numbers over 1 minute.

       statType	       A   value   either   HBA_EVENT_PORT_STAT_TRHESHOLD   or
		       HBA_EVENT_PORT_STAT_GROWTH used	to  determine  whether
		       counters	 registered  are  for  threshold  crossing  or
		       growth rate.

       discoveredPortWWThe Port WWN of the target that the event callbacks are
		       being requested of.

       pCallbackHandle A pointer to structure in which an opaque identifier is
		       returned that is used to deregister  the	 callback.  To
		       deregister  this	 event, call HBA_RemoveCallback() with
		       this pCallbackHandle as an argument.

       allTargets      If value is  non-zero,  discoveredPortWWN  is  ignored.
		       Events for all discovered targets will be registered by
		       this call.  If value is zero, only events  for  discov‐
		       eredPortWWN will be registered.

       pcallbackHandle A handle returned by the event registration function of
		       the routine that is to be removed.

DESCRIPTION
       The HBA_RegisterForAdapterEvents() function registers  an  application-
       defined function that is called when an HBA category asynchronous event
       occurs. An HBA catetory event can  have	one  of	 the  following	 event
       types:  HBA_EVENT_ADAPTER_REMOVE or HBA_EVENT_ADAPTER_CHANGE. If either
       of these events occur, the callback function is called,	regardless  of
       whether	 the  HBA  handle  specified  at  registration	is  open.  The
       HBA_RemoveCallback() function must be called to end event delivery.

       The HBA_RegisterForAdapterAddEvents() function  registers  an  applica‐
       tion-defined function that is called whenever an HBA add category asyn‐
       chronous event occurs.  The callback function is called when a new  HBA
       is added to the local system. The HBA_RemoveCallback() function must be
       called to end event delivery.

       The HBA_RegisterForAdapterPortEvents() function registers  an  applica‐
       tion-defined  function  that  is called on the specified HBA whenever a
       port category asynchronous event occurs. A port catetory event  can  be
       one    of    the	  following   event   types:   HBA_EVENT_PORT_OFFLINE,
       HBA_EVENT_PORT_ONLINE, HBA_EVENT_PORT_NEW_TARGETS,  HBA_EVENT_PORT_FAB‐
       RIC,  or HBA_EVENT_PORT_UNKNOWN.	 The handle need not be open for call‐
       backs to occur. The HBA_RemoveCallback() function must be called to end
       event delivery.

       The  HBA_RegisterForAdapterPortStatEvents() function defines conditions
       that would cause an HBA port statistics asynchronous event  and	regis‐
       ters  an	 application-defined  function	that is called whenever one of
       these events occur. An HBA port statistics asynchronous	event  can  be
       one  of	the  following	event types:  HBA_EVENT_PORT_STAT_THRESHOLD or
       HBA_EVENT_PORT_STAT_GROWTH.  More than one statistic can be  registered
       with  one  call	by  setting multiple statistics in the stats argument.
       For threshold events, once a specific threshold has been	 crossed,  the
       callback	 is automatically deregistered for that statistic.  The handle
       need not be open for callbacks to occur. The HBA_RemoveCallback() func‐
       tion must be called to end event delivery.

       The  HBA_RegisterForTargetEvents()  function  registers an application-
       defined function that is called on the specified HBA whenever a	target
       category	 asynchronous event occurs. A Target category event can be one
       of the following event types: HBA_EVENT_TARGET_OFFLINE,	HBA_EVENT_TAR‐
       GET_ONLINE,  HBA_EVENT_TARGET_REMOVED,  HBA_EVENT_TARGET_UNKNOWN.   The
       handle need not be open for callbacks  to  occur.  The  HBA_RemoveCall‐
       back() function must be called to end event delivery.

       The   HBA_RegisterForLinkEvents()  function  registers  an  application
       defined function that is called on the specified HBA  whenever  a  link
       category asynchronous event occurs. A link category event can be one of
       the    following	   event     types:	HBA_EVENT_LINK_INCIDENT	    or
       HBA_EVENT_LINK_UNKNOWN.	 RLIR  ELS  is the only fabric link event type
       and the callback function is called whenever is it detected by the HBA.
       The handle need not be open for callbacks to occur. The HBA_RemoveCall‐
       back() function must be called to end event delivery.

       The  HBA_RemoveCallback()  function  removes   the   HBA_CALLBACKHANDLE
       instance of the callback routine.

RETURN VALUES
       Upon  successful completion, HBA_RegisterForAdapterEvents(), HBA_Regis‐
       terForAdapterAddEvents(), HBA_RegisterForAdapterPortEvents(),  HBA_Reg‐
       isterForAdapterPortStatEvents(),	  HBA_RegisterForTargetEvents(),   and
       HBA_RegisterForLinkEvents() return  HBA_STATUS_OK  and  pCallbackHandle
       may  be	used  to deregister the callback. Otherwise, an error value is
       returned and pCallbackHandle is not valid.

       Upon successful completion, HBA_RemoveCallback() returns HBA_STATUS_OK.
       Otherwise, an error value is returned.

ERRORS
       See libhbaapi(3LIB) for general error status values.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Standard:	 FC-MI	1.92 (API  │
       │			     │version 1)		   │
       ├─────────────────────────────┼─────────────────────────────┤
       │			     │Standard: FC-HBA Version	4  │
       │			     │(API version 2)		   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       libhbaapi(3LIB), attributes(5)

       T11 FC-MI Specification

SunOS 5.10			  1 Sep 2HBA_RegisterForAdapterEvents(3HBAAPI)
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