net/devlink/linecard.c

23 unsigned int devlink_linecard_index(struct devlink_linecard *linecard)
25 	return linecard->index;
52 		struct devlink_linecard *linecard;
54 		linecard = devlink_linecard_get_by_index(devlink, linecard_index);
55 		if (!linecard)
57 		return linecard;
75 				    struct devlink_linecard *linecard,
91 	if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index))
93 	if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state))
95 	if (linecard->type &&
96 	    nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type))
99 	if (linecard->types_count) {
104 		for (i = 0; i < linecard->types_count; i++) {
105 			linecard_type = &linecard->types[i];
116 					   linecard->rel_index,
129 static void devlink_linecard_notify(struct devlink_linecard *linecard,
132 	struct devlink *devlink = linecard->devlink;
146 	err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0,
158 	struct devlink_linecard *linecard;
160 	list_for_each_entry(linecard, &devlink->linecard_list, list)
161 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
166 	struct devlink_linecard *linecard;
168 	list_for_each_entry_reverse(linecard, &devlink->linecard_list, list)
169 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL);
175 	struct devlink_linecard *linecard;
179 	linecard = devlink_linecard_get_from_info(devlink, info);
180 	if (IS_ERR(linecard))
181 		return PTR_ERR(linecard);
187 	mutex_lock(&linecard->state_lock);
188 	err = devlink_nl_linecard_fill(msg, devlink, linecard,
192 	mutex_unlock(&linecard->state_lock);
207 	struct devlink_linecard *linecard;
211 	list_for_each_entry(linecard, &devlink->linecard_list, list) {
216 		mutex_lock(&linecard->state_lock);
217 		err = devlink_nl_linecard_fill(msg, devlink, linecard,
222 		mutex_unlock(&linecard->state_lock);
240 devlink_linecard_type_lookup(struct devlink_linecard *linecard,
246 	for (i = 0; i < linecard->types_count; i++) {
247 		linecard_type = &linecard->types[i];
254 static int devlink_linecard_type_set(struct devlink_linecard *linecard,
258 	const struct devlink_linecard_ops *ops = linecard->ops;
262 	mutex_lock(&linecard->state_lock);
263 	if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) {
268 	if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) {
274 	linecard_type = devlink_linecard_type_lookup(linecard, type);
281 	if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED &&
282 	    linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) {
290 		    ops->same_provision(linecard, linecard->priv,
297 	linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING;
298 	linecard->type = linecard_type->type;
299 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
300 	mutex_unlock(&linecard->state_lock);
301 	err = ops->provision(linecard, linecard->priv, linecard_type->type,
304 		/* Provisioning failed. Assume the linecard is unprovisioned
307 		mutex_lock(&linecard->state_lock);
308 		linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
309 		linecard->type = NULL;
310 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
311 		mutex_unlock(&linecard->state_lock);
316 	mutex_unlock(&linecard->state_lock);
320 static int devlink_linecard_type_unset(struct devlink_linecard *linecard,
325 	mutex_lock(&linecard->state_lock);
326 	if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) {
331 	if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) {
336 	if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) {
337 		linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
338 		linecard->type = NULL;
339 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
344 	if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) {
349 	linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING;
350 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
351 	mutex_unlock(&linecard->state_lock);
352 	err = linecard->ops->unprovision(linecard, linecard->priv,
355 		/* Unprovisioning failed. Assume the linecard is unprovisioned
358 		mutex_lock(&linecard->state_lock);
359 		linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
360 		linecard->type = NULL;
361 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
362 		mutex_unlock(&linecard->state_lock);
367 	mutex_unlock(&linecard->state_lock);
375 	struct devlink_linecard *linecard;
378 	linecard = devlink_linecard_get_from_info(devlink, info);
379 	if (IS_ERR(linecard))
380 		return PTR_ERR(linecard);
387 			err = devlink_linecard_type_set(linecard, type, extack);
391 			err = devlink_linecard_type_unset(linecard, extack);
400 static int devlink_linecard_types_init(struct devlink_linecard *linecard)
406 	count = linecard->ops->types_count(linecard, linecard->priv);
407 	linecard->types = kmalloc_array(count, sizeof(*linecard_type),
409 	if (!linecard->types)
411 	linecard->types_count = count;
414 		linecard_type = &linecard->types[i];
415 		linecard->ops->types_get(linecard, linecard->priv, i,
422 static void devlink_linecard_types_fini(struct devlink_linecard *linecard)
424 	kfree(linecard->types);
428  *	devl_linecard_create - Create devlink linecard
431  *	@linecard_index: driver-specific numerical identifier of the linecard
435  *	Create devlink linecard instance with provided linecard index.
444 	struct devlink_linecard *linecard;
454 	linecard = kzalloc(sizeof(*linecard), GFP_KERNEL);
455 	if (!linecard)
458 	linecard->devlink = devlink;
459 	linecard->index = linecard_index;
460 	linecard->ops = ops;
461 	linecard->priv = priv;
462 	linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
463 	mutex_init(&linecard->state_lock);
465 	err = devlink_linecard_types_init(linecard);
467 		mutex_destroy(&linecard->state_lock);
468 		kfree(linecard);
472 	list_add_tail(&linecard->list, &devlink->linecard_list);
473 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
474 	return linecard;
479  *	devl_linecard_destroy - Destroy devlink linecard
481  *	@linecard: devlink linecard
483 void devl_linecard_destroy(struct devlink_linecard *linecard)
485 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL);
486 	list_del(&linecard->list);
487 	devlink_linecard_types_fini(linecard);
488 	mutex_destroy(&linecard->state_lock);
489 	kfree(linecard);
494  *	devlink_linecard_provision_set - Set provisioning on linecard
496  *	@linecard: devlink linecard
497  *	@type: linecard type
502 void devlink_linecard_provision_set(struct devlink_linecard *linecard,
505 	mutex_lock(&linecard->state_lock);
506 	WARN_ON(linecard->type && strcmp(linecard->type, type));
507 	linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
508 	linecard->type = type;
509 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
510 	mutex_unlock(&linecard->state_lock);
515  *	devlink_linecard_provision_clear - Clear provisioning on linecard
517  *	@linecard: devlink linecard
522 void devlink_linecard_provision_clear(struct devlink_linecard *linecard)
524 	mutex_lock(&linecard->state_lock);
525 	linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
526 	linecard->type = NULL;
527 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
528 	mutex_unlock(&linecard->state_lock);
533  *	devlink_linecard_provision_fail - Fail provisioning on linecard
535  *	@linecard: devlink linecard
540 void devlink_linecard_provision_fail(struct devlink_linecard *linecard)
542 	mutex_lock(&linecard->state_lock);
543 	linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED;
544 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
545 	mutex_unlock(&linecard->state_lock);
550  *	devlink_linecard_activate - Set linecard active
552  *	@linecard: devlink linecard
554 void devlink_linecard_activate(struct devlink_linecard *linecard)
556 	mutex_lock(&linecard->state_lock);
557 	WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED);
558 	linecard->state = DEVLINK_LINECARD_STATE_ACTIVE;
559 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
560 	mutex_unlock(&linecard->state_lock);
565  *	devlink_linecard_deactivate - Set linecard inactive
567  *	@linecard: devlink linecard
569 void devlink_linecard_deactivate(struct devlink_linecard *linecard)
571 	mutex_lock(&linecard->state_lock);
572 	switch (linecard->state) {
574 		linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
575 		devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
586 	mutex_unlock(&linecard->state_lock);
593 	struct devlink_linecard *linecard;
595 	linecard = devlink_linecard_get_by_index(devlink, linecard_index);
596 	if (!linecard)
598 	devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
604 	struct devlink_linecard *linecard;
606 	linecard = devlink_linecard_get_by_index(devlink, linecard_index);
607 	if (linecard && linecard->rel_index == rel_index)
608 		linecard->rel_index = 0;
613  *					 instance to linecard.
615  *	@linecard: devlink linecard
618 int devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
621 	return devlink_rel_nested_in_add(&linecard->rel_index,
622 					 linecard->devlink->index,
623 					 linecard->index,