1 files changed, 14 insertions, 91 deletions

diff --git a/drivers/infiniband/sw/rxe/rxe_pool.h b/drivers/infiniband/sw/rxe/rxe_pool.h
index 214279310f4d..24bcc786c1b3 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.h
+++ b/drivers/infiniband/sw/rxe/rxe_pool.h
@@ -8,9 +8,7 @@
 #define RXE_POOL_H
 
 enum rxe_pool_flags {
-	RXE_POOL_INDEX		= BIT(1),
-	RXE_POOL_KEY		= BIT(2),
-	RXE_POOL_NO_ALLOC	= BIT(4),
+	RXE_POOL_ALLOC		= BIT(1),
 };
 
 enum rxe_elem_type {
@@ -22,8 +20,6 @@ enum rxe_elem_type {
 	RXE_TYPE_CQ,
 	RXE_TYPE_MR,
 	RXE_TYPE_MW,
-	RXE_TYPE_MC_GRP,
-	RXE_TYPE_MC_ELEM,
 	RXE_NUM_TYPES,		/* keep me last */
 };
 
@@ -32,20 +28,13 @@ struct rxe_pool_elem {
 	void			*obj;
 	struct kref		ref_cnt;
 	struct list_head	list;
-
-	/* only used if keyed */
-	struct rb_node		key_node;
-
-	/* only used if indexed */
-	struct rb_node		index_node;
 	u32			index;
 };
 
 struct rxe_pool {
 	struct rxe_dev		*rxe;
 	const char		*name;
-	rwlock_t		pool_lock; /* protects pool add/del/search */
-	void			(*cleanup)(struct rxe_pool_elem *obj);
+	void			(*cleanup)(struct rxe_pool_elem *elem);
 	enum rxe_pool_flags	flags;
 	enum rxe_elem_type	type;
 
@@ -54,36 +43,22 @@ struct rxe_pool {
 	size_t			elem_size;
 	size_t			elem_offset;
 
-	/* only used if indexed */
-	struct {
-		struct rb_root		tree;
-		unsigned long		*table;
-		u32			last;
-		u32			max_index;
-		u32			min_index;
-	} index;
-
-	/* only used if keyed */
-	struct {
-		struct rb_root		tree;
-		size_t			key_offset;
-		size_t			key_size;
-	} key;
+	struct xarray		xa;
+	struct xa_limit		limit;
+	u32			next;
 };
 
 /* initialize a pool of objects with given limit on
  * number of elements. gets parameters from rxe_type_info
  * pool elements will be allocated out of a slab cache
  */
-int rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
-		  enum rxe_elem_type type, u32 max_elem);
+void rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
+		  enum rxe_elem_type type);
 
 /* free resources from object pool */
 void rxe_pool_cleanup(struct rxe_pool *pool);
 
-/* allocate an object from pool holding and not holding the pool lock */
-void *rxe_alloc_locked(struct rxe_pool *pool);
-
+/* allocate an object from pool */
 void *rxe_alloc(struct rxe_pool *pool);
 
 /* connect already allocated object to pool */
@@ -91,69 +66,17 @@ int __rxe_add_to_pool(struct rxe_pool *pool, struct rxe_pool_elem *elem);
 
 #define rxe_add_to_pool(pool, obj) __rxe_add_to_pool(pool, &(obj)->elem)
 
-/* assign an index to an indexed object and insert object into
- *  pool's rb tree holding and not holding the pool_lock
- */
-int __rxe_add_index_locked(struct rxe_pool_elem *elem);
-
-#define rxe_add_index_locked(obj) __rxe_add_index_locked(&(obj)->elem)
-
-int __rxe_add_index(struct rxe_pool_elem *elem);
-
-#define rxe_add_index(obj) __rxe_add_index(&(obj)->elem)
-
-/* drop an index and remove object from rb tree
- * holding and not holding the pool_lock
- */
-void __rxe_drop_index_locked(struct rxe_pool_elem *elem);
-
-#define rxe_drop_index_locked(obj) __rxe_drop_index_locked(&(obj)->elem)
-
-void __rxe_drop_index(struct rxe_pool_elem *elem);
-
-#define rxe_drop_index(obj) __rxe_drop_index(&(obj)->elem)
-
-/* assign a key to a keyed object and insert object into
- * pool's rb tree holding and not holding pool_lock
- */
-int __rxe_add_key_locked(struct rxe_pool_elem *elem, void *key);
-
-#define rxe_add_key_locked(obj, key) __rxe_add_key_locked(&(obj)->elem, key)
-
-int __rxe_add_key(struct rxe_pool_elem *elem, void *key);
-
-#define rxe_add_key(obj, key) __rxe_add_key(&(obj)->elem, key)
-
-/* remove elem from rb tree holding and not holding the pool_lock */
-void __rxe_drop_key_locked(struct rxe_pool_elem *elem);
-
-#define rxe_drop_key_locked(obj) __rxe_drop_key_locked(&(obj)->elem)
-
-void __rxe_drop_key(struct rxe_pool_elem *elem);
-
-#define rxe_drop_key(obj) __rxe_drop_key(&(obj)->elem)
-
-/* lookup an indexed object from index holding and not holding the pool_lock.
- * takes a reference on object
- */
-void *rxe_pool_get_index_locked(struct rxe_pool *pool, u32 index);
-
+/* lookup an indexed object from index. takes a reference on object */
 void *rxe_pool_get_index(struct rxe_pool *pool, u32 index);
 
-/* lookup keyed object from key holding and not holding the pool_lock.
- * takes a reference on the objecti
- */
-void *rxe_pool_get_key_locked(struct rxe_pool *pool, void *key);
+int __rxe_get(struct rxe_pool_elem *elem);
 
-void *rxe_pool_get_key(struct rxe_pool *pool, void *key);
+#define rxe_get(obj) __rxe_get(&(obj)->elem)
 
-/* cleanup an object when all references are dropped */
-void rxe_elem_release(struct kref *kref);
+int __rxe_put(struct rxe_pool_elem *elem);
 
-/* take a reference on an object */
-#define rxe_add_ref(obj) kref_get(&(obj)->elem.ref_cnt)
+#define rxe_put(obj) __rxe_put(&(obj)->elem)
 
-/* drop a reference on an object */
-#define rxe_drop_ref(obj) kref_put(&(obj)->elem.ref_cnt, rxe_elem_release)
+#define rxe_read(obj) kref_read(&(obj)->elem.ref_cnt)
 
 #endif /* RXE_POOL_H */