Query: tran_quiesce
OS: linux
Section: 9e
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
tran_quiesce(9e) Driver Entry Points 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 inter- faces. 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 VALUES
tran_quiesce() and tran_unquiesce() should return: 1 on success. 0 on failure. ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Stability Level |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5), tran_bus_reset(9E), scsi_hba_tran(9S) SunOS 5.10 31 Jan 1999 tran_quiesce(9e)