John Baldwin 3d0338a092 Implement a PCI bus rescan method. ... Rescanning a PCI bus uses the following steps: - Fetch the current set of child devices and save it in the 'devlist' array. - Allocate a parallel array 'unchanged' initalized with NULL pointers. - Scan the bus checking each slot (and each function on slots with a multifunction device). - If a valid function is found, look for a matching device in the 'devlist' array. If a device is found, save the pointer in the 'unchanged' array. If a device is not found, add a new device. - After the scan has finished, walk the 'devlist' array deleting any devices that do not have a matching pointer in the 'unchanged' array. - Finally, fetch an updated set of child devices and explicitly attach any devices that are not present in the 'unchanged' array. This builds on the previous changes to move subclass data management into pci_alloc_devinfo(), pci_child_added(), and bus_child_deleted(). Subclasses of the PCI bus use custom rescan logic explicitly override the rescan method to disable rescans. Differential Revision: https://reviews.freebsd.org/D6018		2016-04-27 16:31:12 +00:00
..
cardbus_cis.c	sys/dev: use our nitems() macro when it is avaliable through param.h.	2016-04-19 23:37:24 +00:00
cardbus_cis.h
cardbus_device.c
cardbus.c	Implement a PCI bus rescan method.	2016-04-27 16:31:12 +00:00
cardbusreg.h
cardbusvar.h	Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge	2014-02-12 04:30:37 +00:00