tran_tgt_probe - request to probe SCSI bus for a particular target
int prefixtran_tgt_probe(struct scsi_device *sd, int (*waitfunc,
illumos architecture specific (illumos DDI).
Pointer to either NULL_FUNC or
The tran_tgt_probe() vector in the scsi_hba_tran(9S) structure may
be initialized during the HBA driver's attach(9E) to point to a
function to be called by scsi_probe(9F) when called by a target driver
during probe(9E) and attach(9E) to probe for a particular
SCSI target on the bus. In the absence of an HBA-specific
tran_tgt_probe() function, the default scsi_probe(9F) behavior
is supplied by the function scsi_hba_probe(9F).
The possible choices the HBA driver may make are:
- Initialize the tran_tgt_probe vector to point to
scsi_hba_probe(9F), which results in the same behavior.
- Initialize the tran_tgt_probe vector to point to a private function
in the HBA, which may call scsi_hba_probe(9F) before or
after any necessary processing, as long as all the defined
scsi_probe(9F) semantics are preserved.
waitfunc indicates what tran_tgt_probe() should do
when resources are not available:
Do not wait for resources. See scsi_probe(9F)
defined return values if no resources are available.
Wait indefinitely for resources.