tran_tgt_init(9E) manual page
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tran_tgt_init - request to initialize HBA resources on behalf of
a particular target
#include <sys/scsi/scsi.h>
void prefixtran_tgt_init(dev_info_t
*hba_dip, dev_info_t *tgt_dip, scsi_hba_tran_t *hba_tran, struct scsi_device
*sd);
Solaris architecture specific (Solaris DDI).
- hba_dip
- Pointer to a dev_info_t structure, referring to the HBA device instance.
- tgt_dip
- Pointer to a dev_info_t structure, referring to the target device
instance.
- hba_tran
- Pointer to a scsi_hba_tran(9S)
structure, consisting
of the HBA’s transport vectors.
- sd
- Pointer to a scsi_device(9S)
structure,
describing the target.
The tran_tgt_init() vector in the scsi_hba_tran(9S)
structure may be initialized during the HBA driver’s attach(9E)
to point
to an HBA driver function to be called by the system when an instance of
a target device is being created. The tran_tgt_init() vector, if not NULL
,
is called after the dev_info node structure is created for this target
device instance, but before probe(9E)
for this instance is called. Before
receiving transport requests from the target driver instance, the HBA may
perform any initialization required for this particular target during the
call of the tran_tgt_init() vector.
Note that hba_tran will point to a
cloned copy of the scsi_hba_tran_t structure allocated by the HBA driver
if the SCSI_HBA_TRAN_CLONE
flag was specified in the call to scsi_hba_attach(9F)
.
In this case, the HBA driver may choose to initialize the tran_tgt_private
field in the structure pointed to by hba_tran, to point to the data specific
to the particular target device instance.
tran_tgt_init()
must return:
- DDI_SUCCESS
- the HBA driver can support the addressed target,
and was able to initialize per-target resources.
- DDI_FAILURE
- the HBA driver
cannot support the addressed target, or was unable to initialize per-target
resources. In this event, the initialization of this instance of the target
device will not be continued, the target driver’s probe(9E)
will not be
called, and the tgt_dip structure destroyed.
attach(9E)
, probe(9E)
,
tran_tgt_free(9E)
, tran_tgt_probe(9E)
, scsi_hba_attach_setup(9F)
, scsi_device(9S)
,
scsi_hba_tran(9S)
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