man/man9e/tran_reset_notify.9e

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 TRAN_RESET_NOTIFY 9E "Aug 30, 1995"
 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