Driver Entry Points                         tranresetnotify(9E)



NAME
     tranresetnotify - request to notify  SCSI  target  of  bus
     reset

SYNOPSIS
     #include 



     int prefixtranresetnotify(struct scsiaddress *ap, int flag,
          void (*callback, caddrt),caddrt arg);


INTERFACE LEVEL
     Solaris architecture specific (Solaris DI).

PARAMETERS
     ap           Pointer to the scsiaddress(9S) structure.


     flag         A flag indicating registration or  cancellation
                  of a notification request.


     callback     A pointer to the target driver's reset  notifi-
                  cation function.


     arg          The callback function argument.


DESCRIPTION
     The tranresetnotify() entry point is called when a  target
     driver requests notification of a bus reset.


     The  tranresetnotify()  vector  in  the  scsihbatran(9S)
     structure may be initialized in the  HBA driver's attach(9E)
     routine to point to the HBA entry point to be called when  a
     target driver calls scsiresetnotify(9F).


     The argument  flag is used to register or cancel the notifi-
     cation.  The supported values for  flag are as follows:

     SCSIRESETNOTIFY     Register callback as the reset notifi-
                           cation function for the target.


     SCSIRESETCANCEL     Cancel the reset notification  request
                           for the target.




SunOS 5.11          Last change: 30 Aug 1995                    1






Driver Entry Points                         tranresetnotify(9E)



     The  HBA driver  maintains  a  list  of  reset  notification
     requests   registered  by  the  target drivers.   When a bus
     reset occurs, the  HBA  driver  notifies  registered  target
     drivers  by calling the callback routine, callback, with the
     argument, arg, for each registered target.

RETURN VALUES
     For SCSIRESETNOTIFY  requests,   tranresetnotify()  must
     return  DISUCES  if  the  notification  request has been
     accepted, and  DIFAILURE otherwise.


     For SCSIRESETCANCEL  requests,   tranresetnotify()  must
     return DISUCES if the notification request has been can-
     celed, and DIFAILURE otherwise.

SEE ALSO
     attach(9E),    scsiifgetcap(9F),     scsiresetnotify(9F),
     scsiaddress(9S), scsihbatran(9S)


     Writing Device Drivers

































SunOS 5.11          Last change: 30 Aug 1995                    2