scsi/libsas/sas_expander.c

59 	int res, retry;
69 			res = -ECOMM;
75 			res = -ENOMEM;
89 		res = i->dft->lldd_execute_task(task, GFP_KERNEL);
91 		if (res) {
93 			pr_notice("executing SMP task failed:%d\n", res);
98 		res = -ECOMM;
109 			res = 0;
116 			res = task->task_status.residual;
121 			res = -EMSGSIZE;
142 	return res;
378 	int res;
382 	res = smp_execute_task(dev, disc_req, DISCOVER_REQ_SIZE,
384 	if (res)
385 		return res;
397 	int  res = 0;
414 		res = sas_ex_phy_discover_helper(dev, disc_req, disc_resp, single);
419 			res = sas_ex_phy_discover_helper(dev, disc_req,
421 			if (res)
428 	return res;
434 	int res;
440 	res = sas_ex_phy_discover(dev, -1);
441 	if (res)
448 	return res;
461 	int res;
477 		res = smp_execute_task(dev, rg_req, RG_REQ_SIZE, rg_resp,
480 		if (res) {
482 				  SAS_ADDR(dev->sas_addr), res);
487 			res = rg_resp->result;
511 	return res;
541 	int res;
555 	res = smp_execute_task(dev, mi_req, MI_REQ_SIZE, mi_resp, MI_RESP_SIZE);
556 	if (res) {
558 			  SAS_ADDR(dev->sas_addr), res);
570 	return res;
582 	int res;
602 	res = smp_execute_task(dev, pc_req, PC_REQ_SIZE, pc_resp, PC_RESP_SIZE);
603 	if (res) {
605 		       SAS_ADDR(dev->sas_addr), phy_id, res);
609 		res = pc_resp[2];
613 	return res;
660 	int res;
679 	res = smp_execute_task(dev, req, RPEL_REQ_SIZE,
682 	if (res)
693 	return res;
705 	int res;
715 	res = smp_execute_task(dev, rps_req, RPS_REQ_SIZE,
723 	if (!res && resp[27] == 0x34 && resp[24] != 0x34) {
739 	return res;
779 	int res;
796 	res = sas_notify_lldd_dev_found(child);
797 	if (res) {
800 			  SAS_ADDR(parent->sas_addr), phy_id, res);
803 		return res;
815 	int res;
843 		res = sas_ata_add_dev(parent, phy, child, phy_id);
845 		res = sas_ex_add_dev(parent, phy, child, phy_id);
850 		res = -ENODEV;
853 	if (res)
898 	int res;
953 	res = sas_discover_expander(child);
954 	if (res) {
973 	int res = 0;
978 			res = sas_ex_phy_discover(dev, phy_id);
979 		if (res)
980 			return res;
1018 	res = sas_configure_routing(dev, ex_phy->attached_sas_addr);
1019 	if (res) {
1021 			  SAS_ADDR(ex_phy->attached_sas_addr), res);
1023 		return res;
1029 		return res;
1045 			return res;
1060 	return res;
1128 	int res = 0;
1149 			res = sas_ex_discover_dev(dev, i);
1150 			if (res)
1156 	if (!res)
1159 	return res;
1235 	int res = 0;
1240 		res = -ENODEV;
1251 		res = -ENODEV;
1259 	return res;
1314 	int res = 0;
1337 				res = -ENODEV;
1341 				res = -ENODEV;
1348 	return res;
1357 	int i, res = 0;
1381 		res = smp_execute_task(dev, rri_req, RRI_REQ_SIZE, rri_resp,
1383 		if (res)
1385 		res = rri_resp[2];
1386 		if (res == SMP_RESP_NO_INDEX) {
1390 		} else if (res != SMP_RESP_FUNC_ACC) {
1393 				  i, res);
1417 	res = -1;
1421 	return res;
1430 	int res;
1451 	res = smp_execute_task(dev, cri_req, CRI_REQ_SIZE, cri_resp,
1453 	if (res)
1455 	res = cri_resp[2];
1456 	if (res == SMP_RESP_NO_INDEX) {
1463 	return res;
1471 	int res;
1473 	res = sas_configure_present(dev, phy_id, sas_addr, &index, &present);
1474 	if (res)
1475 		return res;
1480 	return res;
1495 	int res = 0;
1499 		res = sas_configure_parent(parent->parent, parent, sas_addr,
1501 		if (res)
1502 			return res;
1516 			res = sas_configure_phy(parent, i, sas_addr, include);
1517 			if (res)
1518 				return res;
1522 	return res;
1552 	int res;
1554 	res = sas_notify_lldd_dev_found(dev);
1555 	if (res)
1556 		return res;
1558 	res = sas_ex_general(dev);
1559 	if (res)
1561 	res = sas_ex_manuf_info(dev);
1562 	if (res)
1565 	res = sas_expander_discover(dev);
1566 	if (res) {
1568 			SAS_ADDR(dev->sas_addr), res);
1573 	res = sas_check_parent_topology(dev);
1574 	if (res)
1579 	return res;
1584 	int res = 0;
1593 				res = sas_ex_discover_devices(dev, -1);
1595 				res = sas_ex_discover_devices(port->port_dev, -1);
1600 	return res;
1605 	int res;
1610 		res = sas_ex_level_discovery(port, level);
1614 	return res;
1619 	int res;
1622 	res = sas_rphy_add(dev->rphy);
1623 	if (res)
1627 	res = sas_discover_expander(dev);
1628 	if (res)
1633 	return res;
1638 	return res;
1656 	int res;
1666 	res = smp_execute_task(dev, disc_req, DISCOVER_REQ_SIZE,
1668 	if (res)
1671 		res = disc_resp->result;
1674 	return res;
1680 	int res;
1687 	res = sas_get_phy_discover(dev, phy_id, disc_resp);
1688 	if (!res)
1692 	return res;
1698 	int res;
1705 	res = sas_get_phy_discover(dev, phy_id, disc_resp);
1706 	if (res == 0)
1709 	return res;
1716 	int res = 0;
1722 		res = sas_get_phy_change_count(dev, i, &phy_change_count);
1723 		switch (res) {
1730 			return res;
1746 	int res;
1762 	res = smp_execute_task(dev, rg_req, RG_REQ_SIZE, rg_resp,
1764 	if (res)
1767 		res = rg_resp->result;
1775 	return res;
1798 	int res;
1801 	res = sas_get_ex_change_count(dev, &ex_change_count);
1802 	if (res)
1809 		res = sas_find_bcast_phy(dev, &phy_id, 0, false);
1815 			return res;
1822 			res = sas_find_bcast_dev(ch, src_dev);
1824 				return res;
1828 	return res;
1886 	int res = 0;
1894 				res = sas_discover_bfs_by_root_level(child,
1897 				res = sas_ex_discover_devices(child, -1);
1900 	return res;
1905 	int res;
1909 	res = sas_ex_discover_devices(dev, -1);
1910 	if (res)
1913 		res = sas_discover_bfs_by_root_level(dev, level);
1918 	return res;
1925 	int res;
1929 	res = sas_ex_phy_discover(dev, phy_id);
1930 	if (res)
1931 		return res;
1936 	res = sas_ex_discover_devices(dev, phy_id);
1937 	if (res)
1938 		return res;
1942 				res = sas_discover_bfs_by_root(child);
1946 	return res;
1973 	int res;
1986 	res = sas_get_phy_discover(dev, phy_id, disc_resp);
1987 	switch (res) {
2004 	if (res == 0)
2007 	if ((SAS_ADDR(sas_addr) == 0) || (res == -ECOMM)) {
2014 		if (res == 0)
2037 	res = sas_discover_new(dev, phy_id);
2040 	return res;
2061 	int res = 0;
2079 		res = sas_rediscover_dev(dev, phy_id, last, i);
2081 		res = sas_discover_new(dev, phy_id);
2082 	return res;
2096 	int res;
2099 	res = sas_find_bcast_dev(port_dev, &dev);
2100 	if (res == 0 && dev) {
2106 			res = sas_find_bcast_phy(dev, &phy_id, i, true);
2109 			res = sas_rediscover(dev, phy_id);
2113 	return res;