Пример #1
0
static int
adaclose(struct disk *dp)
{
	struct	cam_periph *periph;
	struct	ada_softc *softc;
	union ccb *ccb;
	int error;

	periph = (struct cam_periph *)dp->d_drv1;
	if (periph == NULL)
		return (ENXIO);	

	cam_periph_lock(periph);
	if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
		cam_periph_unlock(periph);
		cam_periph_release(periph);
		return (error);
	}

	softc = (struct ada_softc *)periph->softc;
	/* We only sync the cache if the drive is capable of it. */
	if ((softc->flags & ADA_FLAG_CAN_FLUSHCACHE) != 0 &&
	    (softc->flags & ADA_FLAG_PACK_INVALID) == 0) {

		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
		cam_fill_ataio(&ccb->ataio,
				    1,
				    adadone,
				    CAM_DIR_NONE,
				    0,
				    NULL,
				    0,
				    ada_default_timeout*1000);

		if (softc->flags & ADA_FLAG_CAN_48BIT)
			ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0);
		else
			ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0);
		cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
		    /*sense_flags*/0, softc->disk->d_devstat);

		if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
			xpt_print(periph->path, "Synchronize cache failed\n");

		if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
			cam_release_devq(ccb->ccb_h.path,
					 /*relsim_flags*/0,
					 /*reduction*/0,
					 /*timeout*/0,
					 /*getcount_only*/0);
		xpt_release_ccb(ccb);
	}

	softc->flags &= ~ADA_FLAG_OPEN;
	cam_periph_unhold(periph);
	cam_periph_unlock(periph);
	cam_periph_release(periph);
	return (0);	
}
Пример #2
0
static int
adaopen(struct disk *dp)
{
	struct cam_periph *periph;
	struct ada_softc *softc;
	int unit;
	int error;

	periph = (struct cam_periph *)dp->d_drv1;
	if (periph == NULL) {
		return (ENXIO);	
	}

	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
		return(ENXIO);
	}

	cam_periph_lock(periph);
	if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
		cam_periph_unlock(periph);
		cam_periph_release(periph);
		return (error);
	}

	unit = periph->unit_number;
	softc = (struct ada_softc *)periph->softc;
	softc->flags |= ADA_FLAG_OPEN;

	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
	    ("adaopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
	     unit));

	if ((softc->flags & ADA_FLAG_PACK_INVALID) != 0) {
		/* Invalidate our pack information. */
		softc->flags &= ~ADA_FLAG_PACK_INVALID;
	}

	cam_periph_unhold(periph);
	cam_periph_unlock(periph);
	return (0);
}