262 static void	 xptaction(struct cam_sim *sim, union ccb *work_ccb);
263 static void	 xptpoll(struct cam_sim *sim);
387  * the appropriate SIM lock once the bus/SIM is located.
904 	 * The xpt layer is, itself, the equivalent of a SIM.  in xpt_init()
932 	 * Looking at the XPT from the SIM layer, the XPT is  in xpt_init()
1064 	    path->bus->sim->sim_name,  in xpt_announce_periph_sbuf()
1065 	    path->bus->sim->unit_number,  in xpt_announce_periph_sbuf()
1066 	    path->bus->sim->bus_id,  in xpt_announce_periph_sbuf()
1139 	    path->bus->sim->sim_name,  in xpt_denounce_periph_sbuf()
1140 	    path->bus->sim->unit_number,  in xpt_denounce_periph_sbuf()
1141 	    path->bus->sim->bus_id,  in xpt_denounce_periph_sbuf()
1335 		 && (cur_pattern->bus_id != bus->sim->bus_id))  in xptbusmatch()
1339 		 && (cur_pattern->unit_number != bus->sim->unit_number))  in xptbusmatch()
1343 		 && (strncmp(cur_pattern->dev_name, bus->sim->sim_name,  in xptbusmatch()
1643 		cdm->matches[j].result.bus_result.bus_id = bus->sim->bus_id;  in xptedtbusfunc()
1645 			bus->sim->unit_number;  in xptedtbusfunc()
1647 			bus->sim->sim_name,  in xptedtbusfunc()
2537 	struct cam_sim *sim;  in xpt_action_default()  local
2596 		devq = path->bus->sim->devq;  in xpt_action_default()
2625 			devq = device->sim->devq;  in xpt_action_default()
2644 				 * the SIM.  Flag it for abort and the  in xpt_action_default()
2645 				 * SIM will do so just before starting  in xpt_action_default()
2666 		 * in the XPT, pass the request down to the SIM for processing.  in xpt_action_default()
2684 		sim = path->bus->sim;  in xpt_action_default()
2685 		mtx = sim->mtx;  in xpt_action_default()
2692 		    ("Calling sim->sim_action(): func=%#x\n", start_ccb->ccb_h.func_code));  in xpt_action_default()
2693 		(*(sim->sim_action))(sim, start_ccb);  in xpt_action_default()
2695 		    ("sim->sim_action returned: status=%#x\n", start_ccb->ccb_h.status));  in xpt_action_default()
2733 		struct cam_devq *devq = bus->sim->devq;  in xpt_action_default()
2918 			cur_entry->event_lock = (path->bus->sim->mtx &&  in xpt_action_default()
2919 			    mtx_owned(path->bus->sim->mtx)) ? 1 : 0;  in xpt_action_default()
2952 		mtx_lock(&dev->sim->devq->send_mtx);  in xpt_action_default()
2996 		mtx_unlock(&dev->sim->devq->send_mtx);  in xpt_action_default()
3081  * Call the sim poll routine to allow the sim to complete
3086 xpt_sim_poll(struct cam_sim *sim)  in xpt_sim_poll()  argument
3090 	KASSERT(cam_sim_pollable(sim), ("%s: non-pollable sim", __func__));  in xpt_sim_poll()
3091 	mtx = sim->mtx;  in xpt_sim_poll()
3094 	(*(sim->sim_poll))(sim);  in xpt_sim_poll()
3104 	struct	  cam_sim *sim;  in xpt_poll_setup()  local
3109 	sim = start_ccb->ccb_h.path->bus->sim;  in xpt_poll_setup()
3110 	devq = sim->devq;  in xpt_poll_setup()
3113 	KASSERT(cam_sim_pollable(sim), ("%s: non-pollable sim", __func__));  in xpt_poll_setup()
3125 		xpt_sim_poll(sim);  in xpt_poll_setup()
3138 	KASSERT(cam_sim_pollable(start_ccb->ccb_h.path->bus->sim),  in xpt_pollwait()
3139 	    ("%s: non-pollable sim", __func__));  in xpt_pollwait()
3141 		xpt_sim_poll(start_ccb->ccb_h.path->bus->sim);  in xpt_pollwait()
3303 		struct	cam_sim *sim;  in xpt_run_devq()  local
3377 		 * Device queues can be shared among multiple SIM instances  in xpt_run_devq()
3378 		 * that reside on different buses.  Use the SIM from the  in xpt_run_devq()
3381 		sim = device->sim;  in xpt_run_devq()
3382 		mtx = sim->mtx;  in xpt_run_devq()
3388 		(*(sim->sim_action))(sim, work_ccb);  in xpt_run_devq()
3726 		    device->sim->sim_name,  in xpt_device_sbuf()
3727 		    device->sim->unit_number,  in xpt_device_sbuf()
3728 		    device->sim->bus_id,  in xpt_device_sbuf()
3778 			sbuf_printf(sb, "%s%d:%d:", path->bus->sim->sim_name,  in xpt_path_sbuf()
3779 				    path->bus->sim->unit_number,  in xpt_path_sbuf()
3780 				    path->bus->sim->bus_id);  in xpt_path_sbuf()
3825 	return (path->bus->sim);  in xpt_path_sim()
3858 /* Functions accessed by SIM drivers */
3874  * A sim structure, listing the SIM entry points and instance
3875  * identification info is passed to xpt_bus_register to hook the SIM
3883 xpt_bus_register(struct cam_sim *sim, device_t parent, uint32_t bus)  in xpt_bus_register()  argument
3891 	sim->bus_id = bus;  in xpt_bus_register()
3901 	cam_sim_hold(sim);  in xpt_bus_register()
3902 	new_bus->sim = sim;  in xpt_bus_register()
3910 	sim->path_id = new_bus->path_id =  in xpt_bus_register()
3911 	    xptpathid(sim->sim_name, sim->unit_number, sim->bus_id);  in xpt_bus_register()
3925 	 * the SIM.  This will then allow for probing and attaching of  in xpt_bus_register()
3930 	status = xpt_create_path(&path, /*periph*/NULL, sim->path_id,  in xpt_bus_register()
3965 	if (sim->path_id != CAM_XPT_PATH_ID) {  in xpt_bus_register()
4234 		xpt_release_simq(path->bus->sim, TRUE);  in xpt_async_process()
4260 			    path->device->sim->mtx : NULL;  in xpt_async_bcast()
4323 		xpt_freeze_simq(path->bus->sim, 1);  in xpt_async()
4349 	devq = dev->sim->devq;  in xpt_freeze_devq_device()
4368 	devq = dev->sim->devq;  in xpt_freeze_devq()
4377 xpt_freeze_simq(struct cam_sim *sim, u_int count)  in xpt_freeze_simq()  argument
4382 	devq = sim->devq;  in xpt_freeze_simq()
4397 	devq = dev->sim->devq;  in xpt_release_devq_timeout()
4412 	devq = dev->sim->devq;  in xpt_release_devq()
4415 		xpt_run_devq(dev->sim->devq);  in xpt_release_devq()
4423 	mtx_assert(&dev->sim->devq->send_mtx, MA_OWNED);  in xpt_release_devq_device()
4454 		xpt_schedule_devq(dev->sim->devq, dev);  in xpt_release_devq_device()
4461 xpt_release_simq(struct cam_sim *sim, int run_queue)  in xpt_release_simq()  argument
4465 	devq = sim->devq;  in xpt_release_simq()
4479 			xpt_run_devq(sim->devq);  in xpt_release_simq()
4505 	/* Store the time the ccb was in the sim */  in xpt_done()
4529 	/* Store the time the ccb was in the sim */  in xpt_done_direct()
4662 	cam_sim_release(bus->sim);  in xpt_release_bus()
4772 	devq = bus->sim->devq;  in xpt_alloc_device()
4787 	device->sim = bus->sim;  in xpt_alloc_device()
4789 			  bus->sim->max_dev_openings) != 0) {  in xpt_alloc_device()
4847 	devq = bus->sim->devq;  in xpt_release_device()
4888 	mtx_lock(&dev->sim->devq->send_mtx);  in xpt_dev_ccbq_resize()
4890 	mtx_unlock(&dev->sim->devq->send_mtx);  in xpt_dev_ccbq_resize()
4954 	struct cam_sim *sim;  in xpt_start_tags()  local
4958 	sim = path->bus->sim;  in xpt_start_tags()
4966 				  sim->max_tagged_dev_openings);  in xpt_start_tags()
4985 	struct cam_sim *sim;  in xpt_stop_tags()  local
4988 	sim = path->bus->sim;  in xpt_stop_tags()
4993 	xpt_dev_ccbq_resize(path, sim->max_dev_openings);  in xpt_stop_tags()
5191 xptaction(struct cam_sim *sim, union ccb *work_ccb)  in xptaction()  argument
5212 		strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);  in xptaction()
5213 		cpi->unit_number = sim->unit_number;  in xptaction()
5214 		cpi->bus_id = sim->bus_id;  in xptaction()
5235 xptpoll(struct cam_sim *sim)  in xptpoll()  argument
5261 	struct cam_sim *sim = NULL;  in xpt_done_process()  local
5296 			mtx_lock(&device->sim->devq->send_mtx);  in xpt_done_process()
5299 			mtx_unlock(&device->sim->devq->send_mtx);  in xpt_done_process()
5310 		sim = ccb_h->path->bus->sim;  in xpt_done_process()
5313 		KASSERT(sim, ("sim missing for CAM_RELEASE_SIMQ request"));  in xpt_done_process()
5314 		xpt_release_simq(sim, /*run_queue*/FALSE);  in xpt_done_process()
5327 		if (sim)  in xpt_done_process()
5328 			devq = sim->devq;  in xpt_done_process()
5467  * When a SIM is created, it registers a bus with a NEWBUS device_t. This is