Content-type: text/html Man page of tran_reset_notify

tran_reset_notify

Section: Driver Entry Points (9E)
Updated: 30 Aug 1995
Index Return to Main Contents
 

NAME

tran_reset_notify - request to notify SCSI target of bus reset  

SYNOPSIS

#include <sys/scsi/scsi.h>

int prefixtran_reset_notify(struct scsi_address *ap, int flag, void (*callback, caddr_t),caddr_t arg);  

INTERFACE LEVEL

Solaris architecture specific (Solaris DDI).  

PARAMETERS

ap Pointer to the scsi_address(9S) structure.

flag A flag indicating registration or cancellation of a notification request.

callback A pointer to the target driver's reset notification function.

arg The callback function argument.

 

DESCRIPTION

The tran_reset_notify() entry point is called when a target driver requests notification of a bus reset.

The tran_reset_notify() vector in the scsi_hba_tran(9S) structure may be initialized in the HBA driver's attach(9E) routine to point to the HBA entry point to be called when a target driver calls scsi_reset_notify(9F).

The argument flag is used to register or cancel the notification. The supported values for flag are as follows:

SCSI_RESET_NOTIFY Register callback as the reset notification function for the target.

SCSI_RESET_CANCEL Cancel the reset notification request for the target.

The HBA driver maintains a list of reset notification requests registered by the target drivers. When a bus reset occurs, the HBA driver notifies registered target drivers by calling the callback routine, callback, with the argument, arg, for each registered target.  

RETURN VALUES

For SCSI_RESET_NOTIFY requests, tran_reset_notify() must return DDI_SUCCESS if the notification request has been accepted, and DDI_FAILURE otherwise.

For SCSI_RESET_CANCEL requests, tran_reset_notify() must return DDI_SUCCESS if the notification request has been canceled, and DDI_FAILURE otherwise.  

SEE ALSO

attach(9E), scsi_ifgetcap(9F), scsi_reset_notify(9F), scsi_address(9S), scsi_hba_tran(9S)

Writing Device Drivers


 

Index

NAME
SYNOPSIS
INTERFACE LEVEL
PARAMETERS
DESCRIPTION
RETURN VALUES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:39:35 GMT, October 02, 2010