TRAN_RESET_NOTIFY(9E)TRAN_RESET_NOTIFY(9E)NAMEtran_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 noti‐
fication request.
callback
A pointer to the target driver's reset notification func‐
tion.
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 func‐
tion for the target.
SCSI_RESET_CANCEL
Cancel the reset notification request for the
target.
The HBA driver maintains a list of reset notification requests regis‐
tered 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 ALSOattach(9E), scsi_ifgetcap(9F), scsi_reset_notify(9F), scsi_address(9S),
scsi_hba_tran(9S)
Writing Device Drivers
Aug 30, 1995 TRAN_RESET_NOTIFY(9E)
