Lines Matching refs:zbus
34 * @zbus: the zbus holding the zdevices
41 static int zpci_bus_scan(struct zpci_bus *zbus, int domain, struct pci_ops *ops)
49 zbus->domain_nr = rc;
51 bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, ops, zbus, &zbus->resources);
53 zpci_free_domain(zbus->domain_nr);
57 zbus->bus = bus;
64 struct zpci_bus *zbus = container_of(kref, struct zpci_bus, kref);
66 if (zbus->bus) {
68 pci_stop_root_bus(zbus->bus);
70 zpci_free_domain(zbus->domain_nr);
71 pci_free_resource_list(&zbus->resources);
73 pci_remove_root_bus(zbus->bus);
78 list_del(&zbus->bus_next);
80 kfree(zbus);
83 static void zpci_bus_put(struct zpci_bus *zbus)
85 kref_put(&zbus->kref, zpci_bus_release);
90 struct zpci_bus *zbus;
93 list_for_each_entry(zbus, &zbus_list, bus_next) {
94 if (pchid == zbus->pchid) {
95 kref_get(&zbus->kref);
99 zbus = NULL;
102 return zbus;
107 struct zpci_bus *zbus;
109 zbus = kzalloc(sizeof(*zbus), GFP_KERNEL);
110 if (!zbus)
113 zbus->pchid = pchid;
114 INIT_LIST_HEAD(&zbus->bus_next);
116 list_add_tail(&zbus->bus_next, &zbus_list);
119 kref_init(&zbus->kref);
120 INIT_LIST_HEAD(&zbus->resources);
122 zbus->bus_resource.start = 0;
123 zbus->bus_resource.end = ZPCI_BUS_NR;
124 zbus->bus_resource.flags = IORESOURCE_BUS;
125 pci_add_resource(&zbus->resources, &zbus->bus_resource);
127 return zbus;
139 zpci_iov_setup_virtfn(zdev->zbus, pdev, zdev->vfn);
144 static int zpci_bus_add_device(struct zpci_bus *zbus, struct zpci_dev *zdev)
152 bus = zbus->bus;
168 resource_list_for_each_entry_safe(window, n, &zbus->resources) {
180 static void zpci_bus_add_devices(struct zpci_bus *zbus)
185 if (zbus->function[i])
186 zpci_bus_add_device(zbus, zbus->function[i]);
189 pci_bus_add_devices(zbus->bus);
195 struct zpci_bus *zbus = NULL;
209 zbus = zpci_bus_get(zdev->pchid);
211 if (!zbus) {
212 zbus = zpci_bus_alloc(zdev->pchid);
213 if (!zbus)
217 zdev->zbus = zbus;
218 if (zbus->function[zdev->devfn]) {
222 zbus->function[zdev->devfn] = zdev;
224 zpci_setup_bus_resources(zdev, &zbus->resources);
226 if (zbus->bus) {
227 if (!zbus->multifunction) {
228 WARN_ONCE(1, "zbus is not multifunction\n");
235 rc = zpci_bus_add_device(zbus, zdev);
239 if (zbus->multifunction && !zdev->rid_available) {
243 rc = zpci_bus_scan(zbus, (u16)zdev->uid, ops);
246 zpci_bus_add_devices(zbus);
251 zbus->multifunction = zdev->rid_available;
252 zbus->max_bus_speed = zdev->max_bus_speed;
254 zbus->multifunction = 1;
261 zbus->function[zdev->devfn] = NULL;
264 zpci_bus_put(zbus);
270 struct zpci_bus *zbus = zdev->zbus;
273 zbus->function[zdev->devfn] = NULL;
274 zpci_bus_put(zbus);