Driver Entry Points                                tranabort(9E)



NAME
     tranabort - abort a SCSI command

SYNOPSIS
     #include 



      int prefixtranabort(struct scsiaddress *ap,
          struct scsipkt *pkt);


INTERFACE LEVEL
     Solaris architecture specific (Solaris DI).

ARGUMENTS
     ap      Pointer to a scsiaddress(9S) structure.


     pkt     Pointer to a scsipkt(9S) structure.


DESCRIPTION
     The tranabort() vector in the  scsihbatran(9S)  structure
     must  be  initialized  during the HBA driver's attach(9E) to
     point to an HBA entry point  to  be  called  when  a  target
     driver calls scsiabort(9F).


     tranabort() should attempt to abort the  command  pkt  that
     has  been  transported  to the HBA.  If pkt is NUL, the HBA
     driver should attempt to abort all outstanding  packets  for
     the target/logical unit addressed by ap.


     Depending on the state of a particular command in the  tran-
     sport  layer,  the  HBA  driver may not be able to abort the
     command.


     While the abort is taking place, packets issued to the tran-
     sported layer may or may not be aborted.


     For each packet successfully aborted, tranabort() must  set
     the  pktreason  to  CMDABORTED, and pktstatistics must be
     OR'ed with STATABORTED .

RETURN VALUES
     tranabort() must return:





SunOS 5.11          Last change: 17 Aug 2005                    1






Driver Entry Points                                tranabort(9E)



     1     upon success or partial success.


     0     upon failure.


CONTEXT
     The tranabort() function can be called from user or  inter-
     rupt context. This requirement comes from scsiabort().

SEE ALSO
     attach(9E),       scsiabort(9F),       scsihbaattach(9F),
     scsiaddress(9S), scsihbatran(9S), scsipkt(9S)


     Writing Device Drivers

NOTES
     If pktreason already indicates that an  earlier  error  had
     occurred,  tranabort() should not overwrite pktreason with
     CMDABORTED.


































SunOS 5.11          Last change: 17 Aug 2005                    2