drivers/xen/xen-scsiback.c

79 	struct scsiback_tpg *tpg;	/* translate to   */
221 	struct scsiback_tpg *tpg = pending_req->v2p->tpg;
224 	       tpg->tport->tport_name, pending_req->v2p->lun,
274 	struct scsiback_tpg *tpg = entry->tpg;
276 	mutex_lock(&tpg->tv_tpg_mutex);
277 	tpg->tv_tpg_fe_count--;
278 	mutex_unlock(&tpg->tv_tpg_mutex);
424 	struct se_session *sess = pending_req->v2p->tpg->tpg_nexus->tvn_se_sess;
618 	struct scsiback_tpg *tpg = pending_req->v2p->tpg;
619 	struct scsiback_nexus *nexus = tpg->tpg_nexus;
675 	struct scsiback_tpg *tpg = v2p->tpg;
676 	struct scsiback_nexus *nexus = tpg->tpg_nexus;
931 	struct scsiback_tpg *tpg_entry, *tpg = NULL;
957 						tpg = tpg_entry;
965 	if (tpg) {
966 		mutex_lock(&tpg->tv_tpg_mutex);
967 		tpg->tv_tpg_fe_count++;
968 		mutex_unlock(&tpg->tv_tpg_mutex);
972 	if (!tpg) {
995 	new->tpg = tpg;
1004 		mutex_lock(&tpg->tv_tpg_mutex);
1005 		tpg->tv_tpg_fe_count--;
1006 		mutex_unlock(&tpg->tv_tpg_mutex);
1330 	struct scsiback_tpg *tpg = container_of(se_tpg,
1332 	struct scsiback_tport *tport = tpg->tport;
1339 	struct scsiback_tpg *tpg = container_of(se_tpg,
1341 	return tpg->tport_tpgt;
1470 	struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg,
1474 	mutex_lock(&tpg->tv_tpg_mutex);
1475 	rb = snprintf(page, PAGE_SIZE, "%s\n", tpg->param_alias);
1476 	mutex_unlock(&tpg->tv_tpg_mutex);
1485 	struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg,
1495 	mutex_lock(&tpg->tv_tpg_mutex);
1496 	len = snprintf(tpg->param_alias, VSCSI_NAMELEN, "%s", page);
1497 	if (tpg->param_alias[len - 1] == '\n')
1498 		tpg->param_alias[len - 1] = '\0';
1499 	mutex_unlock(&tpg->tv_tpg_mutex);
1514 	struct scsiback_tpg *tpg = container_of(se_tpg,
1517 	tpg->tpg_nexus = p;
1521 static int scsiback_make_nexus(struct scsiback_tpg *tpg,
1527 	mutex_lock(&tpg->tv_tpg_mutex);
1528 	if (tpg->tpg_nexus) {
1529 		pr_debug("tpg->tpg_nexus already exists\n");
1540 	tv_nexus->tvn_se_sess = target_setup_session(&tpg->se_tpg,
1552 	mutex_unlock(&tpg->tv_tpg_mutex);
1556 static int scsiback_drop_nexus(struct scsiback_tpg *tpg)
1561 	mutex_lock(&tpg->tv_tpg_mutex);
1562 	tv_nexus = tpg->tpg_nexus;
1564 		mutex_unlock(&tpg->tv_tpg_mutex);
1570 		mutex_unlock(&tpg->tv_tpg_mutex);
1574 	if (tpg->tv_tpg_port_count != 0) {
1575 		mutex_unlock(&tpg->tv_tpg_mutex);
1577 			tpg->tv_tpg_port_count);
1581 	if (tpg->tv_tpg_fe_count != 0) {
1582 		mutex_unlock(&tpg->tv_tpg_mutex);
1584 			tpg->tv_tpg_fe_count);
1589 		scsiback_dump_proto_id(tpg->tport),
1596 	tpg->tpg_nexus = NULL;
1597 	mutex_unlock(&tpg->tv_tpg_mutex);
1606 	struct scsiback_tpg *tpg = container_of(se_tpg,
1611 	mutex_lock(&tpg->tv_tpg_mutex);
1612 	tv_nexus = tpg->tpg_nexus;
1614 		mutex_unlock(&tpg->tv_tpg_mutex);
1619 	mutex_unlock(&tpg->tv_tpg_mutex);
1628 	struct scsiback_tpg *tpg = container_of(se_tpg,
1630 	struct scsiback_tport *tport_wwn = tpg->tport;
1637 		ret = scsiback_drop_nexus(tpg);
1692 	ret = scsiback_make_nexus(tpg, port_ptr);
1724 	struct scsiback_tpg *tpg = container_of(se_tpg,
1727 	mutex_lock(&tpg->tv_tpg_mutex);
1728 	tpg->tv_tpg_port_count++;
1729 	mutex_unlock(&tpg->tv_tpg_mutex);
1737 	struct scsiback_tpg *tpg = container_of(se_tpg,
1740 	mutex_lock(&tpg->tv_tpg_mutex);
1741 	tpg->tv_tpg_port_count--;
1742 	mutex_unlock(&tpg->tv_tpg_mutex);
1751 	struct scsiback_tpg *tpg;
1761 	tpg = kzalloc(sizeof(struct scsiback_tpg), GFP_KERNEL);
1762 	if (!tpg)
1765 	mutex_init(&tpg->tv_tpg_mutex);
1766 	INIT_LIST_HEAD(&tpg->tv_tpg_list);
1767 	INIT_LIST_HEAD(&tpg->info_list);
1768 	tpg->tport = tport;
1769 	tpg->tport_tpgt = tpgt;
1771 	ret = core_tpg_register(wwn, &tpg->se_tpg, tport->tport_proto_id);
1773 		kfree(tpg);
1777 	list_add_tail(&tpg->tv_tpg_list, &scsiback_list);
1780 	return &tpg->se_tpg;
1785 	struct scsiback_tpg *tpg = container_of(se_tpg,
1789 	list_del(&tpg->tv_tpg_list);
1794 	scsiback_drop_nexus(tpg);
1799 	kfree(tpg);