scsi/libsas/sas_expander.c

29 static void sas_port_add_ex_phy(struct sas_port *port, struct ex_phy *ex_phy)
31 	sas_port_add_phy(port, ex_phy->phy);
32 	ex_phy->port = port;
62 		to_sas_internal(dev->port->ha->shost->transportt);
63 	struct sas_ha_struct *ha = dev->port->ha;
207 	struct sas_ha_struct *ha = dev->port->ha;
339 		set_bit(DISCE_REVALIDATE_DOMAIN, &dev->port->disc.pending);
355 	if (!ex_phy->port)
358 	rphy = ex_phy->port->rphy;
642 static int sas_dev_present_in_domain(struct asd_sas_port *port,
647 	if (SAS_ADDR(port->sas_addr) == SAS_ADDR(sas_addr))
649 	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
748 	struct sas_port *port;
753 	port = parent_phy->port;
768 			sas_port_add_phy(port, phy->phy);
782 	rphy = sas_end_device_alloc(phy->port);
794 	list_add_tail(&child->disco_list_node, &parent->port->disco_list);
826 	child->port   = parent->port;
830 	if (!phy->port) {
831 		phy->port = sas_port_alloc(&parent->rphy->dev, phy_id);
832 		if (unlikely(!phy->port))
834 		if (unlikely(sas_port_add(phy->port) != 0)) {
835 			sas_port_free(phy->port);
840 	sas_device_set_phy(child, phy->port);
860 	sas_port_delete(phy->port);
862 	phy->port = NULL;
867 /* See if this phy is part of a wide port */
880 			    SAS_ADDR_SIZE) && ephy->port) {
881 			sas_port_add_ex_phy(ephy->port, phy);
897 	struct asd_sas_port *port;
911 	phy->port = sas_port_alloc(&parent->rphy->dev, phy_id);
913 	BUG_ON(sas_port_add(phy->port) != 0);
918 		rphy = sas_expander_alloc(phy->port,
922 		rphy = sas_expander_alloc(phy->port,
929 	port = parent->port;
936 	child->port = port;
943 	parent->port->disc.max_level = max(parent->port->disc.max_level,
949 	spin_lock_irq(&parent->port->dev_list_lock);
950 	list_add_tail(&child->dev_list_node, &parent->port->dev_list);
951 	spin_unlock_irq(&parent->port->dev_list_lock);
956 		spin_lock_irq(&parent->port->dev_list_lock);
958 		spin_unlock_irq(&parent->port->dev_list_lock);
960 		sas_port_delete(phy->port);
961 		phy->port = NULL;
984 	if (!dev->parent && sas_phy_match_port_addr(dev->port, ex_phy)) {
991 			sas_configure_phy(dev, phy_id, dev->port->sas_addr, 1);
995 	if (sas_dev_present_in_domain(dev->port, ex_phy->attached_sas_addr))
1027 		pr_debug("Attaching ex phy%02d to wide port %016llx\n",
1038 		if (SAS_ADDR(dev->port->disc.fanout_sas_addr)) {
1047 			memcpy(dev->port->disc.fanout_sas_addr,
1223 	struct sas_discovery *disc = &parent->port->disc;
1237 	struct sas_discovery *disc = &parent->port->disc;
1487  * @sas_addr: SAS port identifier of device directly attached to child
1528  * @sas_addr: port identifier of device directly attached to the expander device
1582 static int sas_ex_level_discovery(struct asd_sas_port *port, const int level)
1587 	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
1595 				res = sas_ex_discover_devices(port->port_dev, -1);
1603 static int sas_ex_bfs_disc(struct asd_sas_port *port)
1609 		level = port->disc.max_level;
1610 		res = sas_ex_level_discovery(port, level);
1612 	} while (level < port->disc.max_level);
1626 	ex->level = dev->port->disc.max_level; /* 0 */
1631 	sas_ex_bfs_disc(dev->port);
1831 static void sas_unregister_ex_tree(struct asd_sas_port *port, struct domain_device *dev)
1839 			sas_unregister_ex_tree(port, child);
1841 			sas_unregister_dev(port, child);
1843 	sas_unregister_dev(port, dev);
1858 					sas_unregister_ex_tree(parent->port, child);
1860 					sas_unregister_dev(parent->port, child);
1868 	if (phy->port) {
1869 		sas_port_delete_phy(phy->port, phy->phy);
1870 		sas_device_set_phy(found, phy->port);
1871 		if (phy->port->num_phys == 0) {
1872 			list_add_tail(&phy->port->del_list,
1873 				&parent->port->sas_port_del_list);
1874 			if (ex_dev->parent_port == phy->port)
1877 		phy->port = NULL;
1916 	} while (level <= dev->port->disc.max_level);
1976 		sprintf(msg, ", part of a wide port with phy%02d", sibling);
2052  * the last phy in the port, for other phys in this port, we just delete it
2053  * from the port.For inserting, we do discovery when it is the
2054  * first phy,for other phys in this port, we add it to the port to
2055  * forming the wide-port.
2063 	bool last = true;	/* is this the last phy of the port */
2087  * @port_dev: port domain device.