TRAN_BUS_RESET(9E) Driver Entry Points TRAN_BUS_RESET(9E)


NAME


tran_bus_reset - reset a SCSI bus

SYNOPSIS


#include <sys/scsi/scsi.h> int prefix

tran_bus_reset(dev_info_t *hba_dip, int level);


INTERFACE LEVEL


illumos DDI

PARAMETERS


hba_dip
The dev_info_t pointer associated with the SCSI HBA.


level
The level of reset required.


DESCRIPTION


The tran_bus_reset() vector in the scsi_hba_tran(9S) structure should be
initialized during the HBA driver's attach(9E). It is an HBA entry point
to be called when a user initiates a bus reset through device control
interfaces.


tran_bus_reset() must reset the SCSI bus without resetting targets.


level will be one of the following:

RESET_BUS
Reset the SCSI bus only, not the targets.


Implementation is hardware specific. If it is not possible to reset the
SCSI bus without changing the state and operating mode of the targets,
the HBA driver should not initialize this vector or return failure.

RETURN VALUES


tran_bus_reset() should return:

1
on success.


0
on failure.


ATTRIBUTES


See attributes(7) for a description of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+

SEE ALSO


attributes(7), tran_quiesce(9E), scsi_hba_tran(9S)


illumos March 17, 1999 TRAN_BUS_RESET(9E)