opensolaris man page for scsi_hba_tran_alloc

scsi_hba_tran_alloc(9F) 				   Kernel Functions for Drivers 				   scsi_hba_tran_alloc(9F)

NAME
       scsi_hba_tran_alloc, scsi_hba_tran_free - allocate and free transport structures

SYNOPSIS
       #include <sys/scsi/scsi.h>

       scsi_hba_tran_t *scsi_hba_tran_alloc(dev_info_t *dip, int flags);

       void scsi_hba_tran_free(scsi_hba_tran_t *hba_tran);

INTERFACE LEVEL
       Solaris architecture specific (Solaris DDI).

PARAMETERS
       dip	   Pointer to a dev_info structure, defining the HBA driver instance.

       flag	   Flag modifiers. The only possible flag value is SCSI_HBA_CANSLEEP (memory allocation may sleep).

       hba_tran    Pointer to a scsi_hba_tran(9S) structure.

DESCRIPTION
       For scsi_hba_tran_alloc():

       The  scsi_hba_tran_alloc()  function allocates a  scsi_hba_tran(9S) structure for a HBA driver. The HBA must use this structure to register
       its transport vectors with the system by using scsi_hba_attach_setup(9F).

       If the flag SCSI_HBA_CANSLEEP is set in flags, scsi_hba_tran_alloc() may sleep when allocating resources; otherwise it may not  sleep,  and
       callers should be prepared to deal with allocation failures.

       For scsi_hba_tran_free():

       The scsi_hba_tran_free() function is used to free the scsi_hba_tran(9S) structure allocated by scsi_hba_tran_alloc().

RETURN VALUES
       The scsi_hba_tran_alloc() function returns a pointer to the allocated transport structure, or NULL if no space is available.

CONTEXT
       The  scsi_hba_tran_alloc()  function can be called from user, interrupt, or kernel context. Drivers must not allow scsi_hba_tran_alloc() to
       sleep if called from an interrupt routine.

       The scsi_hba_tran_free() function can be called from user, interrupt, or kernel context context.

SEE ALSO
       scsi_hba_attach_setup(9F), scsi_hba_tran(9S)

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 					   scsi_hba_tran_alloc(9F)