scsi/libsas/sas_expander.c

3  * Serial Attached SCSI (SAS) Expander discovery and configuration
348 /* check if we have an existing attached ata device on this expander phy */
1039 			pr_debug("second fanout expander %016llx phy%02d attached to ex %016llx phy%02d\n",  in sas_ex_discover_dev()
1117  * sas_ex_discover_devices - discover devices attached to this expander
1118  * @dev: pointer to the expander domain device
1121  * Configure this expander for use with its devices and register the
1122  * devices of this expander.
1485  * @parent: parent expander
1486  * @child: child expander
1488  * @include: whether or not to include @child in the expander routing table
1527  * @dev: expander device
1528  * @sas_addr: port identifier of device directly attached to the expander device
1545  * sas_discover_expander - expander discovery
1546  * @dev: pointer to expander domain device
1567 		pr_warn("expander %016llx discovery failed(0x%x)\n",  in sas_discover_expander()
1782  * Add self-configuration expander support. Suppose two expander cascading,
1783  * when the first level expander is self-configuring, hotplug the disks in
1784  * second level expander, BROADCAST(CHANGE) will not only be originated
1785  * in the second level expander, but also be originated in the first level
1786  * expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say,
1787  * expander changed count in two level expanders will all increment at least
1805 		/* Just detect if this expander phys phy change count changed,  in sas_find_bcast_dev()
1806 		* in order to determine if this expander originate BROADCAST,  in sas_find_bcast_dev()