cam/scsi/scsi_target.c

94 	struct cam_periph	*periph;
141 static void		targdone(struct cam_periph *periph,
172 	struct cam_periph *periph;
175 	if (softc->periph == NULL) {
182 	 * Acquire a hold on the periph so that it doesn't go away before
185 	periph = softc->periph;
186 	cam_periph_acquire(periph);
187 	cam_periph_lock(periph);
189 	if (softc->periph != NULL) {
190 		cam_periph_invalidate(softc->periph);
191 		softc->periph = NULL;
193 	cam_periph_unlock(periph);
194 	cam_periph_release(periph);
200  * periph doesn't get created until an ioctl is issued to do so, and
212 	softc->periph = NULL;
241 		status = xpt_create_path(&path, /*periph*/NULL,
257 		if (softc->periph == NULL) {
261 		cam_periph_lock(softc->periph);
263 		cam_periph_unlock(softc->periph);
269 		/* If no periph available, disallow debugging changes */
307 		cam_periph_lock(softc->periph);
312 		cam_periph_unlock(softc->periph);
350 	cam_periph_lock(softc->periph);
353 	cam_periph_unlock(softc->periph);
385 	struct cam_periph *periph;
407 	/* Destroy any periph on our path if it is disabled */
408 	periph = cam_periph_find(path, "targ");
409 	if (periph != NULL) {
412 		del_softc = (struct targ_softc *)periph->softc;
414 			cam_periph_invalidate(del_softc->periph);
415 			del_softc->periph = NULL;
418 			       periph->unit_number);
424 	/* Create a periph instance attached to this path */
432 	/* Ensure that the periph now exists. */
434 		panic("targenable: succeeded but no periph?");
475 /* Initialize a periph (called from cam_periph_alloc) */
477 targctor(struct cam_periph *periph, void *arg)
481 	/* Store pointer to softc for periph-driven routines */
483 	periph->softc = softc;
484 	softc->periph = periph;
485 	softc->path = periph->path;
490 targdtor(struct cam_periph *periph)
496 	softc = (struct targ_softc *)periph->softc;
512 	softc->periph = NULL;
514 	periph->softc = NULL;
550 			cam_periph_lock(softc->periph);
561 			cam_periph_unlock(softc->periph);
564 			cam_periph_lock(softc->periph);
575 				xpt_schedule(softc->periph, priority);
590 			cam_periph_unlock(softc->periph);
609 /* Process requests (descrs) via the periph-supplied CCBs */
611 targstart(struct cam_periph *periph, union ccb *start_ccb)
617 	softc = (struct targ_softc *)periph->softc;
632 			xpt_print(periph->path,
643 			xpt_schedule(periph, next_descr->priority);
757 targdone(struct cam_periph *periph, union ccb *done_ccb)
762 	CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("targdone %p\n", done_ccb));
763 	softc = (struct targ_softc *)periph->softc;
785  		cam_periph_unlock(softc->periph);
787  		cam_periph_lock(softc->periph);
816 	cam_periph_lock(softc->periph);
821 			error = cam_periph_sleep(softc->periph, user_queue,
833 			cam_periph_unlock(softc->periph);
852 		cam_periph_unlock(softc->periph);
854 		cam_periph_lock(softc->periph);
872 		cam_periph_unlock(softc->periph);
874 		cam_periph_lock(softc->periph);
891 	cam_periph_unlock(softc->periph);
966 		/* Send back CCB if we got it from the periph */
1049 		cam_periph_sleep(softc->periph, &softc->pending_ccb_queue,
1056 		cam_periph_unlock(softc->periph);
1058 		cam_periph_lock(softc->periph);