s390/cio/chp.c

28 #include "chp.h"
134 	struct channel_path *chp;
138 	chp = to_channelpath(device);
139 	if (chp->cmg == -1)
142 	return memory_read_from_buffer(buf, count, &off, &chp->cmg_chars,
143 				       sizeof(chp->cmg_chars));
150 	struct channel_path *chp;
158 	chp = to_channelpath(device);
159 	css = to_css(chp->dev.parent);
160 	id = chp->chpid.id;
164 		if (!chp->extended)
210 void chp_remove_cmg_attr(struct channel_path *chp)
212 	device_remove_groups(&chp->dev, measurement_groups);
215 int chp_add_cmg_attr(struct channel_path *chp)
217 	return device_add_groups(&chp->dev, measurement_groups);
226 	struct channel_path *chp = to_channelpath(dev);
229 	mutex_lock(&chp->lock);
230 	status = chp->state;
231 	mutex_unlock(&chp->lock);
308 	struct channel_path *chp = to_channelpath(dev);
311 	mutex_lock(&chp->lock);
312 	type = chp->desc.desc;
313 	mutex_unlock(&chp->lock);
322 	struct channel_path *chp = to_channelpath(dev);
324 	if (!chp)
326 	if (chp->cmg == -1) /* channel measurements not available */
328 	return sprintf(buf, "%d\n", chp->cmg);
336 	struct channel_path *chp = to_channelpath(dev);
338 	if (!chp)
340 	if (chp->shared == -1) /* channel measurements not available */
342 	return sprintf(buf, "%x\n", chp->shared);
350 	struct channel_path *chp = to_channelpath(dev);
353 	mutex_lock(&chp->lock);
354 	if (chp->desc_fmt1.flags & 0x10)
355 		rc = sprintf(buf, "%04x\n", chp->desc_fmt1.chid);
358 	mutex_unlock(&chp->lock);
367 	struct channel_path *chp = to_channelpath(dev);
370 	mutex_lock(&chp->lock);
371 	if (chp->desc_fmt1.flags & 0x10)
372 		rc = sprintf(buf, "%x\n", chp->desc_fmt1.flags & 0x8 ? 1 : 0);
375 	mutex_unlock(&chp->lock);
384 	struct channel_path *chp = to_channelpath(dev);
387 	mutex_lock(&chp->lock);
388 	rc = sprintf(buf, "%x\n", chp->desc_fmt1.esc);
389 	mutex_unlock(&chp->lock);
412 	struct channel_path *chp = to_channelpath(dev);
413 	unsigned long speed = chp->speed;
428 	struct channel_path *chp = to_channelpath(kobj_to_dev(kobj));
431 	mutex_lock(&chp->lock);
432 	rc = memory_read_from_buffer(buf, count, &off, chp->desc_fmt3.util_str,
433 				     sizeof(chp->desc_fmt3.util_str));
434 	mutex_unlock(&chp->lock);
477  * @chp: channel-path
483 int chp_update_desc(struct channel_path *chp)
487 	rc = chsc_determine_fmt0_channel_path_desc(chp->chpid, &chp->desc);
495 	chsc_determine_fmt1_channel_path_desc(chp->chpid, &chp->desc_fmt1);
496 	chsc_determine_fmt3_channel_path_desc(chp->chpid, &chp->desc_fmt3);
497 	chsc_get_channel_measurement_chars(chp);
512 	struct channel_path *chp;
519 	chp = kzalloc(sizeof(struct channel_path), GFP_KERNEL);
520 	if (!chp) {
525 	chp->chpid = chpid;
526 	chp->state = 1;
527 	chp->dev.parent = &css->device;
528 	chp->dev.groups = chp_attr_groups;
529 	chp->dev.release = chp_release;
530 	mutex_init(&chp->lock);
533 	ret = chp_update_desc(chp);
536 	if ((chp->desc.flags & 0x80) == 0) {
540 	dev_set_name(&chp->dev, "chp%x.%02x", chpid.cssid, chpid.id);
543 	ret = device_register(&chp->dev);
545 		CIO_MSG_EVENT(0, "Could not register chp%x.%02x: %d\n",
547 		put_device(&chp->dev);
552 		ret = chp_add_cmg_attr(chp);
554 			device_unregister(&chp->dev);
558 	css->chps[chpid.id] = chp;
561 	kfree(chp);
576 	struct channel_path *chp;
579 	chp = chpid_to_chp(chpid);
580 	if (!chp)
586 	mutex_lock(&chp->lock);
587 	memcpy(desc, &chp->desc, sizeof(*desc));
588 	mutex_unlock(&chp->lock);
765 			CIO_MSG_EVENT(2, "chp: sclp_chp_configure(%x.%02x)="
775 			CIO_MSG_EVENT(2, "chp: sclp_chp_deconfigure(%x.%02x)="