scsi/libsas/sas_expander.c

3  * Serial Attached SCSI (SAS) Expander discovery and configuration
327 /* check if we have an existing attached ata device on this expander phy */
1020 			pr_debug("second fanout expander %016llx phy%02d attached to ex %016llx phy%02d\n",  in sas_ex_discover_dev()
1098  * sas_ex_discover_devices - discover devices attached to this expander
1099  * @dev: pointer to the expander domain device
1102  * Configure this expander for use with its devices and register the
1103  * devices of this expander.
1466  * @parent: parent expander
1467  * @child: child expander
1469  * @include: whether or not to include @child in the expander routing table
1508  * @dev: expander device
1509  * @sas_addr: port identifier of device directly attached to the expander device
1526  * sas_discover_expander - expander discovery
1527  * @dev: pointer to expander domain device
1548 		pr_warn("expander %016llx discovery failed(0x%x)\n",  in sas_discover_expander()
1758  * Add self-configuration expander support. Suppose two expander cascading,
1759  * when the first level expander is self-configuring, hotplug the disks in
1760  * second level expander, BROADCAST(CHANGE) will not only be originated
1761  * in the second level expander, but also be originated in the first level
1762  * expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say,
1763  * expander changed count in two level expanders will all increment at least
1781 		/* Just detect if this expander phys phy change count changed,  in sas_find_bcast_dev()
1782 		* in order to determine if this expander originate BROADCAST,  in sas_find_bcast_dev()