rapidio: add relation links between RIO device structures

[pandora-kernel.git] / include / linux / rio.h

diff --git a/include/linux/rio.h b/include/linux/rio.h
index ffdfe5a..8d9e66d 100644 (file)
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -99,6 +99,7 @@ union rio_pw_msg;
  * @riores: RIO resources this device owns
  * @pwcback: port-write callback function for this device
  * @destid: Network destination ID
+ * @prev: Previous RIO device connected to the current one
  */
 struct rio_dev {
        struct list_head global_list;   /* node in list of all RIO devices */
@@ -125,6 +126,7 @@ struct rio_dev {
        struct resource riores[RIO_MAX_DEV_RESOURCES];
        int (*pwcback) (struct rio_dev *rdev, union rio_pw_msg *msg, int step);
        u16 destid;
+       struct rio_dev *prev;
 };
 
 #define rio_dev_g(n) list_entry(n, struct rio_dev, global_list)
@@ -232,6 +234,7 @@ struct rio_net {
  * @get_domain: Callback for switch-specific domain get function
  * @em_init: Callback for switch-specific error management initialization function
  * @em_handle: Callback for switch-specific error management handler function
+ * @nextdev: Array of per-port pointers to the next attached device
  */
 struct rio_switch {
        struct list_head node;
@@ -253,6 +256,7 @@ struct rio_switch {
                           u8 *sw_domain);
        int (*em_init) (struct rio_dev *dev);
        int (*em_handle) (struct rio_dev *dev, u8 swport);
+       struct rio_dev *nextdev[0];
 };
 
 /* Low-level architecture-dependent routines */