89 int cio_set_options(struct subchannel *sch, int flags)  in cio_set_options()  argument
91 	struct io_subchannel_private *priv = to_io_private(sch);  in cio_set_options()
100 cio_start_handle_notoper(struct subchannel *sch, __u8 lpm)  in cio_start_handle_notoper()  argument
105 		sch->lpm &= ~lpm;  in cio_start_handle_notoper()
107 		sch->lpm = 0;  in cio_start_handle_notoper()
110 		      "subchannel 0.%x.%04x!\n", sch->schid.ssid,  in cio_start_handle_notoper()
111 		      sch->schid.sch_no);  in cio_start_handle_notoper()
113 	if (cio_update_schib(sch))  in cio_start_handle_notoper()
116 	sprintf(dbf_text, "no%s", dev_name(&sch->dev));  in cio_start_handle_notoper()
118 	CIO_HEX_EVENT(0, &sch->schib, sizeof (struct schib));  in cio_start_handle_notoper()
120 	return (sch->lpm ? -EACCES : -ENODEV);  in cio_start_handle_notoper()
124 cio_start_key (struct subchannel *sch,	/* subchannel structure */  in cio_start_key()  argument
129 	struct io_subchannel_private *priv = to_io_private(sch);  in cio_start_key()
134 	CIO_TRACE_EVENT(5, dev_name(&sch->dev));  in cio_start_key()
137 	/* sch is always under 2G. */  in cio_start_key()
138 	orb->cmd.intparm = (u32)virt_to_phys(sch);  in cio_start_key()
144 	orb->cmd.lpm = (lpm != 0) ? lpm : sch->lpm;  in cio_start_key()
153 	ccode = ssch(sch->schid, orb);  in cio_start_key()
163 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND;  in cio_start_key()
169 		return cio_start_handle_notoper(sch, lpm);  in cio_start_key()
177 cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm)  in cio_start()  argument
179 	return cio_start_key(sch, cpa, lpm, PAGE_DEFAULT_KEY);  in cio_start()
187 cio_resume (struct subchannel *sch)  in cio_resume()  argument
192 	CIO_TRACE_EVENT(4, dev_name(&sch->dev));  in cio_resume()
194 	ccode = rsch (sch->schid);  in cio_resume()
200 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_RESUME_PEND;  in cio_resume()
220 cio_halt(struct subchannel *sch)  in cio_halt()  argument
224 	if (!sch)  in cio_halt()
228 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));  in cio_halt()
233 	ccode = hsch (sch->schid);  in cio_halt()
239 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_HALT_PEND;  in cio_halt()
254 cio_clear(struct subchannel *sch)  in cio_clear()  argument
258 	if (!sch)  in cio_clear()
262 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));  in cio_clear()
267 	ccode = csch (sch->schid);  in cio_clear()
273 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_CLEAR_PEND;  in cio_clear()
289 cio_cancel (struct subchannel *sch)  in cio_cancel()  argument
293 	if (!sch)  in cio_cancel()
297 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));  in cio_cancel()
299 	ccode = xsch (sch->schid);  in cio_cancel()
306 		if (cio_update_schib(sch))  in cio_cancel()
322  * @sch: subchannel on which to perform the cancel_halt_clear operation
335 int cio_cancel_halt_clear(struct subchannel *sch, int *iretry)  in cio_cancel_halt_clear()  argument
339 	if (cio_update_schib(sch))  in cio_cancel_halt_clear()
341 	if (!sch->schib.pmcw.ena)  in cio_cancel_halt_clear()
345 	if (!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_HALT_PEND) &&  in cio_cancel_halt_clear()
346 	    !(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_CLEAR_PEND)) {  in cio_cancel_halt_clear()
347 		if (!scsw_is_tm(&sch->schib.scsw)) {  in cio_cancel_halt_clear()
348 			ret = cio_cancel(sch);  in cio_cancel_halt_clear()
359 	if (!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_CLEAR_PEND)) {  in cio_cancel_halt_clear()
362 			ret = cio_halt(sch);  in cio_cancel_halt_clear()
372 		ret = cio_clear(sch);  in cio_cancel_halt_clear()
380 static void cio_apply_config(struct subchannel *sch, struct schib *schib)  in cio_apply_config()  argument
382 	schib->pmcw.intparm = sch->config.intparm;  in cio_apply_config()
383 	schib->pmcw.mbi = sch->config.mbi;  in cio_apply_config()
384 	schib->pmcw.isc = sch->config.isc;  in cio_apply_config()
385 	schib->pmcw.ena = sch->config.ena;  in cio_apply_config()
386 	schib->pmcw.mme = sch->config.mme;  in cio_apply_config()
387 	schib->pmcw.mp = sch->config.mp;  in cio_apply_config()
388 	schib->pmcw.csense = sch->config.csense;  in cio_apply_config()
389 	schib->pmcw.mbfc = sch->config.mbfc;  in cio_apply_config()
390 	if (sch->config.mbfc)  in cio_apply_config()
391 		schib->mba = sch->config.mba;  in cio_apply_config()
394 static int cio_check_config(struct subchannel *sch, struct schib *schib)  in cio_check_config()  argument
396 	return (schib->pmcw.intparm == sch->config.intparm) &&  in cio_check_config()
397 		(schib->pmcw.mbi == sch->config.mbi) &&  in cio_check_config()
398 		(schib->pmcw.isc == sch->config.isc) &&  in cio_check_config()
399 		(schib->pmcw.ena == sch->config.ena) &&  in cio_check_config()
400 		(schib->pmcw.mme == sch->config.mme) &&  in cio_check_config()
401 		(schib->pmcw.mp == sch->config.mp) &&  in cio_check_config()
402 		(schib->pmcw.csense == sch->config.csense) &&  in cio_check_config()
403 		(schib->pmcw.mbfc == sch->config.mbfc) &&  in cio_check_config()
404 		(!sch->config.mbfc || (schib->mba == sch->config.mba));  in cio_check_config()
410 int cio_commit_config(struct subchannel *sch)  in cio_commit_config()  argument
416 	if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))  in cio_commit_config()
421 		cio_apply_config(sch, &schib);  in cio_commit_config()
422 		ccode = msch(sch->schid, &schib);  in cio_commit_config()
427 			if (stsch(sch->schid, &schib) ||  in cio_commit_config()
430 			if (cio_check_config(sch, &schib)) {  in cio_commit_config()
432 				memcpy(&sch->schib, &schib, sizeof(schib));  in cio_commit_config()
439 			if (tsch(sch->schid, &irb))  in cio_commit_config()
456  * @sch: subchannel on which to perform stsch
459 int cio_update_schib(struct subchannel *sch)  in cio_update_schib()  argument
463 	if (stsch(sch->schid, &schib))  in cio_update_schib()
466 	memcpy(&sch->schib, &schib, sizeof(schib));  in cio_update_schib()
477  * @sch: subchannel to be enabled
480 int cio_enable_subchannel(struct subchannel *sch, u32 intparm)  in cio_enable_subchannel()  argument
485 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));  in cio_enable_subchannel()
487 	if (sch_is_pseudo_sch(sch))  in cio_enable_subchannel()
489 	if (cio_update_schib(sch))  in cio_enable_subchannel()
492 	sch->config.ena = 1;  in cio_enable_subchannel()
493 	sch->config.isc = sch->isc;  in cio_enable_subchannel()
494 	sch->config.intparm = intparm;  in cio_enable_subchannel()
496 	ret = cio_commit_config(sch);  in cio_enable_subchannel()
502 		sch->config.csense = 0;  in cio_enable_subchannel()
503 		ret = cio_commit_config(sch);  in cio_enable_subchannel()
512  * @sch: subchannel to disable
514 int cio_disable_subchannel(struct subchannel *sch)  in cio_disable_subchannel()  argument
519 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));  in cio_disable_subchannel()
521 	if (sch_is_pseudo_sch(sch))  in cio_disable_subchannel()
523 	if (cio_update_schib(sch))  in cio_disable_subchannel()
526 	sch->config.ena = 0;  in cio_disable_subchannel()
527 	ret = cio_commit_config(sch);  in cio_disable_subchannel()
540 	struct subchannel *sch;  in do_cio_interrupt()  local
552 	sch = phys_to_virt(tpi_info->intparm);  in do_cio_interrupt()
553 	spin_lock(&sch->lock);  in do_cio_interrupt()
557 		memcpy (&sch->schib.scsw, &irb->scsw, sizeof (irb->scsw));  in do_cio_interrupt()
559 		if (sch->driver && sch->driver->irq)  in do_cio_interrupt()
560 			sch->driver->irq(sch);  in do_cio_interrupt()
565 	spin_unlock(&sch->lock);  in do_cio_interrupt()
586 void cio_tsch(struct subchannel *sch)  in cio_tsch()  argument
593 	if (tsch(sch->schid, irb) != 0)  in cio_tsch()
596 	memcpy(&sch->schib.scsw, &irb->scsw, sizeof(union scsw));  in cio_tsch()
604 	if (sch->driver && sch->driver->irq)  in cio_tsch()
605 		sch->driver->irq(sch);  in cio_tsch()
651 	struct subchannel *sch;  in cio_probe_console()  local
666 	sch = css_alloc_subchannel(schid, &schib);  in cio_probe_console()
667 	if (IS_ERR(sch))  in cio_probe_console()
668 		return sch;  in cio_probe_console()
670 	lockdep_set_class(&sch->lock, &console_sch_key);  in cio_probe_console()
672 	sch->config.isc = CONSOLE_ISC;  in cio_probe_console()
673 	sch->config.intparm = (u32)virt_to_phys(sch);  in cio_probe_console()
674 	ret = cio_commit_config(sch);  in cio_probe_console()
677 		put_device(&sch->dev);  in cio_probe_console()
680 	console_sch = sch;  in cio_probe_console()
681 	return sch;  in cio_probe_console()
706  * @sch: subchannel on which to perform the start function
714 int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key)  in cio_tm_start_key()  argument
717 	union orb *orb = &to_io_private(sch)->orb;  in cio_tm_start_key()
720 	orb->tm.intparm = (u32)virt_to_phys(sch);  in cio_tm_start_key()
723 	orb->tm.lpm = lpm ? lpm : sch->lpm;  in cio_tm_start_key()
725 	cc = ssch(sch->schid, orb);  in cio_tm_start_key()
733 		return cio_start_handle_notoper(sch, lpm);  in cio_tm_start_key()
740  * @sch: subchannel on which to perform the interrogate function
745 int cio_tm_intrg(struct subchannel *sch)  in cio_tm_intrg()  argument
749 	if (!to_io_private(sch)->orb.tm.b)  in cio_tm_intrg()
751 	cc = xsch(sch->schid);  in cio_tm_intrg()