IPoIB: Consolidate private neighbour data handling

[linux-2.6] / drivers / infiniband / ulp / ipoib / ipoib.h

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index e0a5412b7e68042f820a0c6c32261eba3f39d23c..374109df730353f9d9d7e5d711ade4e7684e6bfa 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -72,12 +72,14 @@ enum {
        IPOIB_MAX_MCAST_QUEUE     = 3,
 
        IPOIB_FLAG_OPER_UP        = 0,
-       IPOIB_FLAG_ADMIN_UP       = 1,
-       IPOIB_PKEY_ASSIGNED       = 2,
-       IPOIB_PKEY_STOP           = 3,
-       IPOIB_FLAG_SUBINTERFACE   = 4,
-       IPOIB_MCAST_RUN           = 5,
-       IPOIB_STOP_REAPER         = 6,
+       IPOIB_FLAG_INITIALIZED    = 1,
+       IPOIB_FLAG_ADMIN_UP       = 2,
+       IPOIB_PKEY_ASSIGNED       = 3,
+       IPOIB_PKEY_STOP           = 4,
+       IPOIB_FLAG_SUBINTERFACE   = 5,
+       IPOIB_MCAST_RUN           = 6,
+       IPOIB_STOP_REAPER         = 7,
+       IPOIB_MCAST_STARTED       = 8,
 
        IPOIB_MAX_BACKOFF_SECONDS = 16,
 
@@ -216,12 +218,21 @@ struct ipoib_neigh {
        struct list_head    list;
 };
 
+/*
+ * We stash a pointer to our private neighbour information after our
+ * hardware address in neigh->ha.  The ALIGN() expression here makes
+ * sure that this pointer is stored aligned so that an unaligned
+ * load is not needed to dereference it.
+ */
 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
 {
-       return (struct ipoib_neigh **) (neigh->ha + 24 -
-                                       (offsetof(struct neighbour, ha) & 4));
+       return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
+                                    INFINIBAND_ALEN, sizeof(void *));
 }
 
+struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh);
+void ipoib_neigh_free(struct ipoib_neigh *neigh);
+
 extern struct workqueue_struct *ipoib_workqueue;
 
 /* functions */
@@ -252,7 +263,7 @@ void ipoib_ib_dev_cleanup(struct net_device *dev);
 
 int ipoib_ib_dev_open(struct net_device *dev);
 int ipoib_ib_dev_up(struct net_device *dev);
-int ipoib_ib_dev_down(struct net_device *dev);
+int ipoib_ib_dev_down(struct net_device *dev, int flush);
 int ipoib_ib_dev_stop(struct net_device *dev);
 
 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);