nvme/target/configfs.c

484 	struct nvmet_subsys *subsys = ns->subsys;
488 	mutex_lock(&subsys->lock);
504 	mutex_unlock(&subsys->lock);
508 	mutex_unlock(&subsys->lock);
531 	mutex_lock(&ns->subsys->lock);
548 	mutex_unlock(&ns->subsys->lock);
565 	struct nvmet_subsys *subsys = ns->subsys;
568 	mutex_lock(&subsys->lock);
578 	mutex_unlock(&subsys->lock);
593 	struct nvmet_subsys *subsys = ns->subsys;
599 	mutex_lock(&subsys->lock);
624 	mutex_unlock(&subsys->lock);
658 	nvmet_send_ana_event(ns->subsys, NULL);
703 	mutex_lock(&ns->subsys->lock);
706 		mutex_unlock(&ns->subsys->lock);
711 	mutex_unlock(&ns->subsys->lock);
729 	mutex_lock(&ns->subsys->lock);
732 		mutex_unlock(&ns->subsys->lock);
736 		nvmet_ns_changed(ns->subsys, ns->nsid);
737 	mutex_unlock(&ns->subsys->lock);
757 bool nvmet_subsys_nsid_exists(struct nvmet_subsys *subsys, u32 nsid)
763 	mutex_lock(&subsys->namespaces_group.cg_subsys->su_mutex);
764 	ns_item = config_group_find_item(&subsys->namespaces_group, name);
765 	mutex_unlock(&subsys->namespaces_group.cg_subsys->su_mutex);
789 	struct nvmet_subsys *subsys = namespaces_to_subsys(&group->cg_item);
805 	ns = nvmet_ns_alloc(subsys, nsid);
810 	pr_info("adding nsid %d to subsystem %s\n", nsid, subsys->subsysnqn);
831 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
833 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->passthru_ctrl_path);
839 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
843 	mutex_lock(&subsys->lock);
846 	if (subsys->passthru_ctrl)
854 	kfree(subsys->passthru_ctrl_path);
856 	subsys->passthru_ctrl_path = kstrndup(page, len, GFP_KERNEL);
857 	if (!subsys->passthru_ctrl_path)
860 	mutex_unlock(&subsys->lock);
864 	mutex_unlock(&subsys->lock);
872 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
874 	return sprintf(page, "%d\n", subsys->passthru_ctrl ? 1 : 0);
880 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
888 		ret = nvmet_passthru_ctrl_enable(subsys);
890 		nvmet_passthru_ctrl_disable(subsys);
905 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
910 	subsys->admin_timeout = timeout;
924 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
929 	subsys->io_timeout = timeout;
943 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);
948 	subsys->clear_ids = clear_ids;
967 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)
969 	config_group_init_type_name(&subsys->passthru_group,
971 	configfs_add_default_group(&subsys->passthru_group,
972 				   &subsys->group);
977 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)
987 	struct nvmet_subsys *subsys;
995 	subsys = to_subsys(target);
999 	link->subsys = subsys;
1004 		if (p->subsys == subsys)
1015 	nvmet_port_disc_changed(port, subsys);
1030 	struct nvmet_subsys *subsys = to_subsys(target);
1035 		if (p->subsys == subsys)
1043 	nvmet_port_del_ctrls(port, subsys);
1044 	nvmet_port_disc_changed(port, subsys);
1065 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);
1083 	if (subsys->allow_any_host) {
1089 	list_for_each_entry(p, &subsys->hosts, entry) {
1093 	list_add_tail(&link->entry, &subsys->hosts);
1094 	nvmet_subsys_disc_changed(subsys, host);
1107 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);
1112 	list_for_each_entry(p, &subsys->hosts, entry) {
1121 	nvmet_subsys_disc_changed(subsys, host);
1147 	struct nvmet_subsys *subsys = to_subsys(item);
1155 	if (allow_any_host && !list_empty(&subsys->hosts)) {
1161 	if (subsys->allow_any_host != allow_any_host) {
1162 		subsys->allow_any_host = allow_any_host;
1163 		nvmet_subsys_disc_changed(subsys, NULL);
1176 	struct nvmet_subsys *subsys = to_subsys(item);
1178 	if (NVME_TERTIARY(subsys->ver))
1180 				NVME_MAJOR(subsys->ver),
1181 				NVME_MINOR(subsys->ver),
1182 				NVME_TERTIARY(subsys->ver));
1185 			NVME_MAJOR(subsys->ver),
1186 			NVME_MINOR(subsys->ver));
1190 nvmet_subsys_attr_version_store_locked(struct nvmet_subsys *subsys,
1196 	if (subsys->subsys_discovered) {
1197 		if (NVME_TERTIARY(subsys->ver))
1199 			       NVME_MAJOR(subsys->ver),
1200 			       NVME_MINOR(subsys->ver),
1201 			       NVME_TERTIARY(subsys->ver));
1204 			       NVME_MAJOR(subsys->ver),
1205 			       NVME_MINOR(subsys->ver));
1210 	if (nvmet_is_passthru_subsys(subsys))
1217 	subsys->ver = NVME_VS(major, minor, tertiary);
1225 	struct nvmet_subsys *subsys = to_subsys(item);
1229 	mutex_lock(&subsys->lock);
1230 	ret = nvmet_subsys_attr_version_store_locked(subsys, page, count);
1231 	mutex_unlock(&subsys->lock);
1247 	struct nvmet_subsys *subsys = to_subsys(item);
1250 			NVMET_SN_MAX_SIZE, subsys->serial);
1254 nvmet_subsys_attr_serial_store_locked(struct nvmet_subsys *subsys,
1259 	if (subsys->subsys_discovered) {
1261 		       subsys->serial);
1278 	memcpy_and_pad(subsys->serial, NVMET_SN_MAX_SIZE, page, len, ' ');
1286 	struct nvmet_subsys *subsys = to_subsys(item);
1290 	mutex_lock(&subsys->lock);
1291 	ret = nvmet_subsys_attr_serial_store_locked(subsys, page, count);
1292 	mutex_unlock(&subsys->lock);
1362 	struct nvmet_subsys *subsys = to_subsys(item);
1364 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->model_number);
1367 static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,
1373 	if (subsys->subsys_discovered) {
1375 		       subsys->model_number);
1397 	kfree(subsys->model_number);
1398 	subsys->model_number = val;
1405 	struct nvmet_subsys *subsys = to_subsys(item);
1409 	mutex_lock(&subsys->lock);
1410 	ret = nvmet_subsys_attr_model_store_locked(subsys, page, count);
1411 	mutex_unlock(&subsys->lock);
1421 	struct nvmet_subsys *subsys = to_subsys(item);
1423 	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);
1426 static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,
1432 	if (subsys->subsys_discovered) {
1434 		      subsys->ieee_oui);
1445 	subsys->ieee_oui = val;
1453 	struct nvmet_subsys *subsys = to_subsys(item);
1457 	mutex_lock(&subsys->lock);
1458 	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);
1459 	mutex_unlock(&subsys->lock);
1469 	struct nvmet_subsys *subsys = to_subsys(item);
1471 	return sysfs_emit(page, "%s\n", subsys->firmware_rev);
1474 static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,
1480 	if (subsys->subsys_discovered) {
1482 		       subsys->firmware_rev);
1505 	kfree(subsys->firmware_rev);
1507 	subsys->firmware_rev = val;
1515 	struct nvmet_subsys *subsys = to_subsys(item);
1519 	mutex_lock(&subsys->lock);
1520 	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);
1521 	mutex_unlock(&subsys->lock);
1538 	struct nvmet_subsys *subsys = to_subsys(item);
1544 	subsys->pi_support = pi_enable;
1559 	struct nvmet_subsys *subsys = to_subsys(item);
1570 	subsys->max_qid = qid_max;
1573 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)
1602 	struct nvmet_subsys *subsys = to_subsys(item);
1604 	nvmet_subsys_del_ctrls(subsys);
1605 	nvmet_subsys_put(subsys);
1621 	struct nvmet_subsys *subsys;
1633 	subsys = nvmet_subsys_alloc(name, NVME_NQN_NVME);
1634 	if (IS_ERR(subsys))
1635 		return ERR_CAST(subsys);
1637 	config_group_init_type_name(&subsys->group, name, &nvmet_subsys_type);
1639 	config_group_init_type_name(&subsys->namespaces_group,
1641 	configfs_add_default_group(&subsys->namespaces_group, &subsys->group);
1643 	config_group_init_type_name(&subsys->allowed_hosts_group,
1645 	configfs_add_default_group(&subsys->allowed_hosts_group,
1646 			&subsys->group);
1648 	nvmet_add_passthru_group(subsys);
1650 	return &subsys->group;