static int get_attention_status(struct hotplug_slot *slot, u8 * value);
static int get_adapter_status(struct hotplug_slot *slot, u8 * value);
static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value);
-static int rpaphp_disable_slot(struct pci_dev *dev);
struct hotplug_slot_ops rpaphp_hotplug_slot_ops = {
.owner = THIS_MODULE,
return deregister_slot(slot);
}
-static int get_dn_properties(struct device_node *dn, int **indexes, int **names,
- int **types, int **power_domains)
+static int get_children_props(struct device_node *dn, int **drc_indexes,
+ int **drc_names, int **drc_types, int **drc_power_domains)
{
- *indexes = (int *) get_property(dn, "ibm,drc-indexes", NULL);
+ int *indexes, *names;
+ int *types, *domains;
- /* &names[1] contains NULL terminated slot names */
- *names = (int *) get_property(dn, "ibm,drc-names", NULL);
+ indexes = (int *) get_property(dn, "ibm,drc-indexes", NULL);
+ names = (int *) get_property(dn, "ibm,drc-names", NULL);
+ types = (int *) get_property(dn, "ibm,drc-types", NULL);
+ domains = (int *) get_property(dn, "ibm,drc-power-domains", NULL);
- /* &types[1] contains NULL terminated slot types */
- *types = (int *) get_property(dn, "ibm,drc-types", NULL);
+ if (!indexes || !names || !types || !domains) {
+ /* Slot does not have dynamically-removable children */
+ return -EINVAL;
+ }
+ if (drc_indexes)
+ *drc_indexes = indexes;
+ if (drc_names)
+ /* &drc_names[1] contains NULL terminated slot names */
+ *drc_names = names;
+ if (drc_types)
+ /* &drc_types[1] contains NULL terminated slot types */
+ *drc_types = types;
+ if (drc_power_domains)
+ *drc_power_domains = domains;
- /* power_domains[1...n] are the slot power domains */
- *power_domains = (int *) get_property(dn, "ibm,drc-power-domains", NULL);
-
- if (*indexes && *names && *types && *power_domains)
- return (1);
-
- return (0);
+ return 0;
}
-static int is_php_dn(struct device_node *dn, int **indexes, int **names, int **types,
- int **power_domains)
+/* To get the DRC props describing the current node, first obtain it's
+ * my-drc-index property. Next obtain the DRC list from it's parent. Use
+ * the my-drc-index for correlation, and obtain the requested properties.
+ */
+int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
+ char **drc_name, char **drc_type, int *drc_power_domain)
{
- if (!is_hotplug_capable(dn))
- return (0);
- if (!get_dn_properties(dn, indexes, names, types, power_domains))
- return (0);
- return (1);
+ int *indexes, *names;
+ int *types, *domains;
+ unsigned int *my_index;
+ char *name_tmp, *type_tmp;
+ int i, rc;
+
+ my_index = (int *) get_property(dn, "ibm,my-drc-index", NULL);
+ if (!my_index) {
+ /* Node isn't DLPAR/hotplug capable */
+ return 1;
+ }
+
+ rc = get_children_props(dn->parent, &indexes, &names, &types, &domains);
+ if (rc < 0) {
+ return 1;
+ }
+
+ name_tmp = (char *) &names[1];
+ type_tmp = (char *) &types[1];
+
+ /* Iterate through parent properties, looking for my-drc-index */
+ for (i = 0; i < indexes[0]; i++) {
+ if ((unsigned int) indexes[i + 1] == *my_index) {
+ if (drc_name)
+ *drc_name = name_tmp;
+ if (drc_type)
+ *drc_type = type_tmp;
+ if (drc_index)
+ *drc_index = *my_index;
+ if (drc_power_domain)
+ *drc_power_domain = domains[i+1];
+ return 0;
+ }
+ name_tmp += (strlen(name_tmp) + 1);
+ type_tmp += (strlen(type_tmp) + 1);
+ }
+
+ return 1;
}
-static int is_dr_dn(struct device_node *dn, int **indexes, int **names, int **types,
- int **power_domains, int **my_drc_index)
+static int is_php_type(char *drc_type)
{
- if (!is_hotplug_capable(dn))
- return (0);
+ unsigned long value;
+ char *endptr;
+
+ /* PCI Hotplug nodes have an integer for drc_type */
+ value = simple_strtoul(drc_type, &endptr, 10);
+ if (endptr == drc_type)
+ return 0;
+
+ return 1;
+}
+
+static int is_php_dn(struct device_node *dn, int **indexes, int **names,
+ int **types, int **power_domains)
+{
+ int *drc_types;
+ int rc;
+
+ rc = get_children_props(dn, indexes, names, &drc_types, power_domains);
+ if (rc >= 0) {
+ if (is_php_type((char *) &drc_types[1])) {
+ *types = drc_types;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static int is_dr_dn(struct device_node *dn, int **indexes, int **names,
+ int **types, int **power_domains, int **my_drc_index)
+{
+ int rc;
*my_drc_index = (int *) get_property(dn, "ibm,my-drc-index", NULL);
- if(!*my_drc_index)
+ if(!*my_drc_index)
return (0);
if (!dn->parent)
return (0);
- return get_dn_properties(dn->parent, indexes, names, types, power_domains);
+ rc = get_children_props(dn->parent, indexes, names, types,
+ power_domains);
+ return (rc >= 0);
}
static inline int is_vdevice_root(struct device_node *dn)
return !strcmp(dn->name, "vdevice");
}
-char *rpaphp_get_drc_name(struct device_node *dn)
+int is_dlpar_type(const char *type_str)
{
- char *name, *ptr = NULL;
- int *drc_names, *drc_indexes, i;
- struct device_node *parent = dn->parent;
- u32 *my_drc_index;
-
- if (!parent)
- return NULL;
-
- my_drc_index = (u32 *) get_property(dn, "ibm,my-drc-index", NULL);
- if (!my_drc_index)
- return NULL;
-
- drc_names = (int *) get_property(parent, "ibm,drc-names", NULL);
- drc_indexes = (int *) get_property(parent, "ibm,drc-indexes", NULL);
- if (!drc_names || !drc_indexes)
- return NULL;
-
- name = (char *) &drc_names[1];
- for (i = 0; i < drc_indexes[0]; i++, name += (strlen(name) + 1)) {
- if (drc_indexes[i + 1] == *my_drc_index) {
- ptr = (char *) name;
- break;
- }
- }
-
- return ptr;
+ /* Only register DLPAR-capable nodes of drc-type PHB or SLOT */
+ return (!strcmp(type_str, "PHB") || !strcmp(type_str, "SLOT"));
}
/****************************************************************
for (i = 0; i < indexes[0]; i++,
name += (strlen(name) + 1), type += (strlen(type) + 1)) {
- if ( slot_type == HOTPLUG ||
- (slot_type == EMBEDDED && indexes[i + 1] == my_drc_index[0])) {
-
+ if (slot_type == HOTPLUG ||
+ (slot_type == EMBEDDED &&
+ indexes[i + 1] == my_drc_index[0] &&
+ is_dlpar_type(type))) {
if (!(slot = alloc_slot_struct(dn, indexes[i + 1], name,
power_domains[i + 1]))) {
retval = -ENOMEM;
goto exit;
}
- if (slot_type == EMBEDDED)
+ if (!strcmp(type, "PHB"))
+ slot->type = PHB;
+ else if (slot_type == EMBEDDED)
slot->type = EMBEDDED;
else
slot->type = simple_strtoul(type, NULL, 10);
return retval;
}
-static int rpaphp_disable_slot(struct pci_dev *dev)
-{
- return disable_slot(rpaphp_find_hotplug_slot(dev));
-}
-
static int disable_slot(struct hotplug_slot *hotplug_slot)
{
int retval = -EINVAL;
EXPORT_SYMBOL_GPL(rpaphp_add_slot);
EXPORT_SYMBOL_GPL(rpaphp_remove_slot);
EXPORT_SYMBOL_GPL(rpaphp_slot_head);
-EXPORT_SYMBOL_GPL(rpaphp_get_drc_name);
+EXPORT_SYMBOL_GPL(rpaphp_get_drc_props);
git://git.onelab.eu / linux-2.6.git / blobdiff