static ssize_t target_stat_transport_inst_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_proto_id_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->proto_id);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_device_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
/* scsiTransportType */
ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
tpg->se_tpg_tfo->get_fabric_name());
}
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_dev_name_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
struct t10_wwn *wwn;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
wwn = &dev->t10_wwn;
/* scsiTransportDevName */
ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
tpg->se_tpg_tfo->tpg_get_wwn(tpg),
(strlen(wwn->unit_serial)) ? wwn->unit_serial :
wwn->vendor);
}
rcu_read_unlock();
return ret;
}