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).

ARGUMENTS

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

scsi_hba_tran_alloc()

scsi_hba_tran_alloc() 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.

scsi_hba_tran_free()

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

RETURN VALUES

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

CONTEXT

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

scsi_hba_tran_free() can be called from user or interrupt context.

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