man/man9e/tran_quiesce.9e

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 tran_quiesce 9E "31 Jan 1999" "SunOS 5.11" "Driver Entry Points"
 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 VALUES

tran_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 TYPEATTRIBUTE VALUE
Interface StabilityCommitted


 SEE ALSO

attributes(5), tran_bus_reset(9E), scsi_hba_tran(9S)