PCI: Make current and maximum bus speeds part of the PCI core

Move the max_bus_speed and cur_bus_speed into the pci_bus.  Expose the
values through the PCI slot driver instead of the hotplug slot driver.
Update all the hotplug drivers to use the pci_bus instead of their own
data structures.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

2 files changed, 5 insertions, 13 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index d76a8a0..a446097 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -380,6 +380,8 @@ struct pci_bus {
 	unsigned char	primary;	/* number of primary bridge */
 	unsigned char	secondary;	/* number of secondary bridge */
 	unsigned char	subordinate;	/* max number of subordinate buses */
+	unsigned char	max_bus_speed;	/* enum pci_bus_speed */
+	unsigned char	cur_bus_speed;	/* enum pci_bus_speed */
 
 	char		name[48];
 
@@ -610,6 +612,7 @@ struct pci_bus *pci_create_bus(struct device *parent, int bus,
 			       struct pci_ops *ops, void *sysdata);
 struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
 				int busnr);
+void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
 struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
 				 const char *name,
 				 struct hotplug_slot *hotplug);
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 56251ac..5d09cba 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -63,12 +63,6 @@ enum pcie_link_width {
  * @get_adapter_status: Called to get see if an adapter is present in the slot or not.
  *	If this field is NULL, the value passed in the struct hotplug_slot_info
  *	will be used when this value is requested by a user.
- * @get_max_bus_speed: Called to get the max bus speed for a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_cur_bus_speed: Called to get the current bus speed for a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
  *
  * The table of function pointers that is passed to the hotplug pci core by a
  * hotplug pci driver.  These functions are called by the hotplug pci core when
@@ -86,17 +80,14 @@ struct hotplug_slot_ops {
 	int (*get_attention_status)	(struct hotplug_slot *slot, u8 *value);
 	int (*get_latch_status)		(struct hotplug_slot *slot, u8 *value);
 	int (*get_adapter_status)	(struct hotplug_slot *slot, u8 *value);
-	int (*get_max_bus_speed)	(struct hotplug_slot *slot, enum pci_bus_speed *value);
-	int (*get_cur_bus_speed)	(struct hotplug_slot *slot, enum pci_bus_speed *value);
 };
 
 /**
  * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
- * @power: if power is enabled or not (1/0)
+ * @power_status: if power is enabled or not (1/0)
  * @attention_status: if the attention light is enabled or not (1/0)
  * @latch_status: if the latch (if any) is open or closed (1/0)
- * @adapter_present: if there is a pci board present in the slot or not (1/0)
- * @address: (domain << 16 | bus << 8 | dev)
+ * @adapter_status: if there is a pci board present in the slot or not (1/0)
  *
  * Used to notify the hotplug pci core of the status of a specific slot.
  */
@@ -105,8 +96,6 @@ struct hotplug_slot_info {
 	u8	attention_status;
 	u8	latch_status;
 	u8	adapter_status;
-	enum pci_bus_speed	max_bus_speed;
-	enum pci_bus_speed	cur_bus_speed;
 };
 
 /**