TRAN_QUIESCE(9E)TRAN_QUIESCE(9E)NAME
tran_quiesce, tran_unquiesce - quiesce and unquiesce a SCSI bus
SYNOPSIS
#include <sys/scsi/scsi.h>
int prefixtran_quiesce(dev_info_t *hba_dip);
int prefixtran_unquiesce(dev_info_t *hba_dip);
INTERFACE LEVEL
Solaris DDI
PARAMETERS
hba_dip
The dev_info_t pointer associated with the SCSI HBA.
DESCRIPTION
The tran_quiesce() and tran_unquiesce() vectors in the
scsi_hba_tran(9S) structure should be initialized during the HBA
driver's attach(9E). They are HBA entry points to be called when a user
initiates quiesce and unquiesce operations through device control
interfaces.
tran_quiesce() should wait for all outstanding commands to complete and
blocks (or queues) any I/O requests issued. tran_unquiesce() should
allow I/O activities to resume on the SCSI bus.
Implementation is hardware specific.
RETURN VALUEStran_quiesce() and tran_unquiesce() should return:
0
Successful completion.
Non-zero
An error occurred.
ATTRIBUTES
See attributes(5) for a description of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Committed │
└────────────────────┴─────────────────┘
SEE ALSOattributes(5), tran_bus_reset(9E), scsi_hba_tran(9S)
Jan 31, 1999 TRAN_QUIESCE(9E)
