In order to initialize and destroy types in a generic way, we need to
provide information about the allocation size, release function and
order. This is done through a macro based DSL (domain specific
language). This patch adds macros to initialize a type and a type
group.
Signed-off-by: Matan Barak <matanb@xxxxxxxxxxxx>
---
include/rdma/uverbs_ioctl.h | 50 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index 382321b..54f592a 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -147,6 +147,56 @@ struct uverbs_root {
size_t num_groups;
};
+#define _UVERBS_ACTIONS_GROUP_SZ(...) \
+ (sizeof((const struct uverbs_action_group*[]){__VA_ARGS__}) / \
+ sizeof(const struct uverbs_action_group *))
+#define UVERBS_TYPE_ALLOC_FD(_order, _obj_size, _free_fn, _fops, _name, _flags)\
+ ((const struct uverbs_type_alloc_action) \
+ {.type = UVERBS_ATTR_TYPE_FD, \
+ .order = _order, \
+ .obj_size = _obj_size, \
+ .free_fn = _free_fn, \
+ .fd = {.fops = _fops, \
+ .name = _name, \
+ .flags = _flags} })
+#define UVERBS_TYPE_ALLOC_IDR_SZ(_size, _order, _free_fn) \
+ ((const struct uverbs_type_alloc_action) \
+ {.type = UVERBS_ATTR_TYPE_IDR, \
+ .order = _order, \
+ .free_fn = _free_fn, \
+ .obj_size = _size,})
+#define UVERBS_TYPE_ALLOC_IDR(_order, _free_fn) \
+ UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uobject), _order, _free_fn)
+#define DECLARE_UVERBS_TYPE(name, _alloc, ...) \
+ const struct uverbs_type name = { \
+ .alloc = _alloc, \
+ .num_groups = _UVERBS_ACTIONS_GROUP_SZ(__VA_ARGS__), \
+ .action_groups = (const struct uverbs_action_group *[]){__VA_ARGS__} \
+ }
+#define _UVERBS_TYPE_SZ(...) \
+ (sizeof((const struct uverbs_type *[]){__VA_ARGS__}) / \
+ sizeof(const struct uverbs_type *))
+#define ADD_UVERBS_TYPE_ACTIONS(type_idx, ...) \
+ [type_idx] = &UVERBS_ACTIONS(__VA_ARGS__)
+#define ADD_UVERBS_TYPE(type_idx, type_ptr) \
+ [type_idx] = ((const struct uverbs_type * const)&type_ptr)
+#define UVERBS_TYPES(...) ((const struct uverbs_type_group) \
+ {.num_types = _UVERBS_TYPE_SZ(__VA_ARGS__), \
+ .types = (const struct uverbs_type *[]){__VA_ARGS__} })
+#define DECLARE_UVERBS_TYPES(name, ...) \
+ const struct uverbs_type_group name = UVERBS_TYPES(__VA_ARGS__)
+
+#define _UVERBS_TYPES_SZ(...) \
+ (sizeof((const struct uverbs_type_group *[]){__VA_ARGS__}) / \
+ sizeof(const struct uverbs_type_group *))
+
+#define UVERBS_TYPES_GROUP(...) \
+ ((const struct uverbs_root){ \
+ .type_groups = (const struct uverbs_type_group *[]){__VA_ARGS__},\
+ .num_groups = _UVERBS_TYPES_SZ(__VA_ARGS__)})
+#define DECLARE_UVERBS_TYPES_GROUP(name, ...) \
+ const struct uverbs_root name = UVERBS_TYPES_GROUP(__VA_ARGS__)
+
/* =================================================
* Parsing infrastructure
* =================================================
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
