346 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_path_store()  local
350 	mutex_lock(&subsys->lock);  in nvmet_ns_device_path_store()
366 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
370 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
393 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
410 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
427 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_uuid_store()  local
430 	mutex_lock(&subsys->lock);  in nvmet_ns_device_uuid_store()
440 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_uuid_store()
455 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_nguid_store()  local
461 	mutex_lock(&subsys->lock);  in nvmet_ns_device_nguid_store()
486 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_nguid_store()
520 	nvmet_send_ana_event(ns->subsys, NULL);  in nvmet_ns_ana_grpid_store()
573 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
576 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
581 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
599 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
602 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
606 		nvmet_ns_changed(ns->subsys, ns->nsid);  in nvmet_ns_revalidate_size_store()
607 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
627 bool nvmet_subsys_nsid_exists(struct nvmet_subsys *subsys, u32 nsid)  in nvmet_subsys_nsid_exists()  argument
633 	mutex_lock(&subsys->namespaces_group.cg_subsys->su_mutex);  in nvmet_subsys_nsid_exists()
634 	ns_item = config_group_find_item(&subsys->namespaces_group, name);  in nvmet_subsys_nsid_exists()
635 	mutex_unlock(&subsys->namespaces_group.cg_subsys->su_mutex);  in nvmet_subsys_nsid_exists()
659 	struct nvmet_subsys *subsys = namespaces_to_subsys(&group->cg_item);  in nvmet_ns_make()  local
675 	ns = nvmet_ns_alloc(subsys, nsid);  in nvmet_ns_make()
680 	pr_info("adding nsid %d to subsystem %s\n", nsid, subsys->subsysnqn);  in nvmet_ns_make()
701 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_show()  local
703 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_show()
709 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_store()  local
713 	mutex_lock(&subsys->lock);  in nvmet_passthru_device_path_store()
716 	if (subsys->passthru_ctrl)  in nvmet_passthru_device_path_store()
724 	kfree(subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_store()
726 	subsys->passthru_ctrl_path = kstrndup(page, len, GFP_KERNEL);  in nvmet_passthru_device_path_store()
727 	if (!subsys->passthru_ctrl_path)  in nvmet_passthru_device_path_store()
730 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
734 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
742 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_show()  local
744 	return sprintf(page, "%d\n", subsys->passthru_ctrl ? 1 : 0);  in nvmet_passthru_enable_show()
750 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_store()  local
758 		ret = nvmet_passthru_ctrl_enable(subsys);  in nvmet_passthru_enable_store()
760 		nvmet_passthru_ctrl_disable(subsys);  in nvmet_passthru_enable_store()
775 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_admin_timeout_store()  local
780 	subsys->admin_timeout = timeout;  in nvmet_passthru_admin_timeout_store()
794 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_io_timeout_store()  local
799 	subsys->io_timeout = timeout;  in nvmet_passthru_io_timeout_store()
813 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_clear_ids_store()  local
818 	subsys->clear_ids = clear_ids;  in nvmet_passthru_clear_ids_store()
837 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
839 	config_group_init_type_name(&subsys->passthru_group,  in nvmet_add_passthru_group()
841 	configfs_add_default_group(&subsys->passthru_group,  in nvmet_add_passthru_group()
842 				   &subsys->group);  in nvmet_add_passthru_group()
847 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
857 	struct nvmet_subsys *subsys;  in nvmet_port_subsys_allow_link()  local
865 	subsys = to_subsys(target);  in nvmet_port_subsys_allow_link()
869 	link->subsys = subsys;  in nvmet_port_subsys_allow_link()
874 		if (p->subsys == subsys)  in nvmet_port_subsys_allow_link()
885 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_allow_link()
900 	struct nvmet_subsys *subsys = to_subsys(target);  in nvmet_port_subsys_drop_link()  local
905 		if (p->subsys == subsys)  in nvmet_port_subsys_drop_link()
913 	nvmet_port_del_ctrls(port, subsys);  in nvmet_port_subsys_drop_link()
914 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_drop_link()
935 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_allow_link()  local
953 	if (subsys->allow_any_host) {  in nvmet_allowed_hosts_allow_link()
959 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_allow_link()
963 	list_add_tail(&link->entry, &subsys->hosts);  in nvmet_allowed_hosts_allow_link()
964 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_allow_link()
977 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_drop_link()  local
982 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_drop_link()
991 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_drop_link()
1017 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_allow_any_host_store()  local
1025 	if (allow_any_host && !list_empty(&subsys->hosts)) {  in nvmet_subsys_attr_allow_any_host_store()
1031 	if (subsys->allow_any_host != allow_any_host) {  in nvmet_subsys_attr_allow_any_host_store()
1032 		subsys->allow_any_host = allow_any_host;  in nvmet_subsys_attr_allow_any_host_store()
1033 		nvmet_subsys_disc_changed(subsys, NULL);  in nvmet_subsys_attr_allow_any_host_store()
1046 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_show()  local
1048 	if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_show()
1050 				NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1051 				NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1052 				NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_show()
1055 			NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1056 			NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_show()
1060 nvmet_subsys_attr_version_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_version_store_locked()  argument
1066 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_version_store_locked()
1067 		if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_store_locked()
1069 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1070 			       NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1071 			       NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1074 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1075 			       NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1080 	if (nvmet_is_passthru_subsys(subsys))  in nvmet_subsys_attr_version_store_locked()
1087 	subsys->ver = NVME_VS(major, minor, tertiary);  in nvmet_subsys_attr_version_store_locked()
1095 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_store()  local
1099 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1100 	ret = nvmet_subsys_attr_version_store_locked(subsys, page, count);  in nvmet_subsys_attr_version_store()
1101 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1117 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_show()  local
1120 			NVMET_SN_MAX_SIZE, subsys->serial);  in nvmet_subsys_attr_serial_show()
1124 nvmet_subsys_attr_serial_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_serial_store_locked()  argument
1129 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_serial_store_locked()
1131 		       subsys->serial);  in nvmet_subsys_attr_serial_store_locked()
1148 	memcpy_and_pad(subsys->serial, NVMET_SN_MAX_SIZE, page, len, ' ');  in nvmet_subsys_attr_serial_store_locked()
1156 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_store()  local
1160 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1161 	ret = nvmet_subsys_attr_serial_store_locked(subsys, page, count);  in nvmet_subsys_attr_serial_store()
1162 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1232 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_show()  local
1234 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->model_number);  in nvmet_subsys_attr_model_show()
1237 static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_model_store_locked()  argument
1243 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_model_store_locked()
1245 		       subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1267 	kfree(subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1268 	subsys->model_number = val;  in nvmet_subsys_attr_model_store_locked()
1275 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_store()  local
1279 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1280 	ret = nvmet_subsys_attr_model_store_locked(subsys, page, count);  in nvmet_subsys_attr_model_store()
1281 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1291 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_show()  local
1293 	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_show()
1296 static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_ieee_oui_store_locked()  argument
1302 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_ieee_oui_store_locked()
1304 		      subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_store_locked()
1315 	subsys->ieee_oui = val;  in nvmet_subsys_attr_ieee_oui_store_locked()
1323 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_store()  local
1327 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1328 	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);  in nvmet_subsys_attr_ieee_oui_store()
1329 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1339 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_show()  local
1341 	return sysfs_emit(page, "%s\n", subsys->firmware_rev);  in nvmet_subsys_attr_firmware_show()
1344 static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_firmware_store_locked()  argument
1350 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_firmware_store_locked()
1352 		       subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1375 	kfree(subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1377 	subsys->firmware_rev = val;  in nvmet_subsys_attr_firmware_store_locked()
1385 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_store()  local
1389 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1390 	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);  in nvmet_subsys_attr_firmware_store()
1391 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1408 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_pi_enable_store()  local
1414 	subsys->pi_support = pi_enable;  in nvmet_subsys_attr_pi_enable_store()
1429 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_qid_max_store()  local
1440 	subsys->max_qid = qid_max;  in nvmet_subsys_attr_qid_max_store()
1443 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)  in nvmet_subsys_attr_qid_max_store()
1472 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_release()  local
1474 	nvmet_subsys_del_ctrls(subsys);  in nvmet_subsys_release()
1475 	nvmet_subsys_put(subsys);  in nvmet_subsys_release()
1491 	struct nvmet_subsys *subsys;  in nvmet_subsys_make()  local
1498 	subsys = nvmet_subsys_alloc(name, NVME_NQN_NVME);  in nvmet_subsys_make()
1499 	if (IS_ERR(subsys))  in nvmet_subsys_make()
1500 		return ERR_CAST(subsys);  in nvmet_subsys_make()
1502 	config_group_init_type_name(&subsys->group, name, &nvmet_subsys_type);  in nvmet_subsys_make()
1504 	config_group_init_type_name(&subsys->namespaces_group,  in nvmet_subsys_make()
1506 	configfs_add_default_group(&subsys->namespaces_group, &subsys->group);  in nvmet_subsys_make()
1508 	config_group_init_type_name(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1510 	configfs_add_default_group(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1511 			&subsys->group);  in nvmet_subsys_make()
1513 	nvmet_add_passthru_group(subsys);  in nvmet_subsys_make()
1515 	return &subsys->group;  in nvmet_subsys_make()