From: Jason Gunthorpe <jgg@mellanox.com>
Date: Wed, 4 Jul 2018 08:50:26 +0300
Subject: RDMA/uverbs: Simplify method definition macros
Patch-mainline: v4.19-rc1
Git-commit: 595c7736d48037d67e7926f5d3ebf484b95b1d13
References: bsc#1103992 FATE#326009
Instead of the large set of indirecting macros, define the few needed
macros to directly instantiate the struct uverbs_method_def and associated
attributes list.
This is small amount of code duplication but the readability is far
better.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/uverbs_std_types_counters.c | 7 -
drivers/infiniband/core/uverbs_std_types_cq.c | 4
drivers/infiniband/core/uverbs_std_types_dm.c | 5 -
drivers/infiniband/core/uverbs_std_types_flow_action.c | 7 -
drivers/infiniband/core/uverbs_std_types_mr.c | 2
drivers/infiniband/hw/mlx5/devx.c | 18 ++--
include/rdma/uverbs_ioctl.h | 18 ----
include/rdma/uverbs_named_ioctl.h | 75 +++++++++--------
8 files changed, 61 insertions(+), 75 deletions(-)
--- a/drivers/infiniband/core/uverbs_std_types_counters.c
+++ b/drivers/infiniband/core/uverbs_std_types_counters.c
@@ -124,21 +124,20 @@ err_read:
return ret;
}
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_COUNTERS_CREATE,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_COUNTERS_CREATE,
&UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_COUNTERS_HANDLE,
UVERBS_OBJECT_COUNTERS,
UVERBS_ACCESS_NEW,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(UVERBS_METHOD_COUNTERS_DESTROY,
- uverbs_destroy_def_handler,
+DECLARE_UVERBS_NAMED_METHOD_DESTROY(UVERBS_METHOD_COUNTERS_DESTROY,
&UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_COUNTERS_HANDLE,
UVERBS_OBJECT_COUNTERS,
UVERBS_ACCESS_DESTROY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
#define MAX_COUNTERS_BUFF_SIZE USHRT_MAX
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_COUNTERS_READ,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_COUNTERS_READ,
&UVERBS_ATTR_IDR(UVERBS_ATTR_READ_COUNTERS_HANDLE,
UVERBS_OBJECT_COUNTERS,
UVERBS_ACCESS_READ,
--- a/drivers/infiniband/core/uverbs_std_types_cq.c
+++ b/drivers/infiniband/core/uverbs_std_types_cq.c
@@ -147,7 +147,7 @@ err_event_file:
return ret;
};
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_CREATE,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_CREATE,
&UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_CQ_HANDLE, UVERBS_OBJECT_CQ,
UVERBS_ACCESS_NEW,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
@@ -196,7 +196,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_
sizeof(resp));
}
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_DESTROY,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_DESTROY,
&UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_CQ_HANDLE, UVERBS_OBJECT_CQ,
UVERBS_ACCESS_DESTROY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
--- a/drivers/infiniband/core/uverbs_std_types_dm.c
+++ b/drivers/infiniband/core/uverbs_std_types_dm.c
@@ -85,7 +85,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_
return 0;
}
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_DM_ALLOC,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_DM_ALLOC,
&UVERBS_ATTR_IDR(UVERBS_ATTR_ALLOC_DM_HANDLE, UVERBS_OBJECT_DM,
UVERBS_ACCESS_NEW,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
@@ -96,8 +96,7 @@ static DECLARE_UVERBS_NAMED_METHOD(UVERB
UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(UVERBS_METHOD_DM_FREE,
- uverbs_destroy_def_handler,
+DECLARE_UVERBS_NAMED_METHOD_DESTROY(UVERBS_METHOD_DM_FREE,
&UVERBS_ATTR_IDR(UVERBS_ATTR_FREE_DM_HANDLE,
UVERBS_OBJECT_DM,
UVERBS_ACCESS_DESTROY,
--- a/drivers/infiniband/core/uverbs_std_types_flow_action.c
+++ b/drivers/infiniband/core/uverbs_std_types_flow_action.c
@@ -385,7 +385,7 @@ static const struct uverbs_attr_spec uve
},
};
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE,
&UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_FLOW_ACTION_ESP_HANDLE,
UVERBS_OBJECT_FLOW_ACTION,
UVERBS_ACCESS_NEW,
@@ -403,7 +403,7 @@ static DECLARE_UVERBS_NAMED_METHOD(UVERB
&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_FLOW_ACTION_ESP_ENCAP,
UVERBS_ATTR_STRUCT(struct ib_uverbs_flow_action_esp_encap, type)));
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY,
&UVERBS_ATTR_IDR(UVERBS_ATTR_MODIFY_FLOW_ACTION_ESP_HANDLE,
UVERBS_OBJECT_FLOW_ACTION,
UVERBS_ACCESS_WRITE,
@@ -419,8 +419,7 @@ static DECLARE_UVERBS_NAMED_METHOD(UVERB
&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_FLOW_ACTION_ESP_ENCAP,
UVERBS_ATTR_STRUCT(struct ib_uverbs_flow_action_esp_encap, type)));
-static DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(UVERBS_METHOD_FLOW_ACTION_DESTROY,
- uverbs_destroy_def_handler,
+DECLARE_UVERBS_NAMED_METHOD_DESTROY(UVERBS_METHOD_FLOW_ACTION_DESTROY,
&UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_FLOW_ACTION_HANDLE,
UVERBS_OBJECT_FLOW_ACTION,
UVERBS_ACCESS_DESTROY,
--- a/drivers/infiniband/core/uverbs_std_types_mr.c
+++ b/drivers/infiniband/core/uverbs_std_types_mr.c
@@ -115,7 +115,7 @@ err_dereg:
return ret;
}
-static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_DM_MR_REG,
+DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_DM_MR_REG,
&UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_HANDLE, UVERBS_OBJECT_MR,
UVERBS_ACCESS_NEW,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -984,7 +984,7 @@ static int devx_umem_cleanup(struct ib_u
return 0;
}
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE,
MLX5_IB_OBJECT_DEVX_UMEM,
UVERBS_ACCESS_NEW,
@@ -998,25 +998,25 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_
&UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE,
MLX5_IB_OBJECT_DEVX_UMEM,
UVERBS_ACCESS_DESTROY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN,
&UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
&UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR,
&UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
&UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
&UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
@@ -1028,7 +1028,7 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO))
);
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_NEW,
@@ -1043,13 +1043,13 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_DESTROY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_WRITE,
@@ -1064,7 +1064,7 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)));
-static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY,
+DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_READ,
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -258,24 +258,6 @@ struct uverbs_object_tree_def {
* Declaration helpers
* =======================================
*/
-#define _UVERBS_METHOD_ATTRS_SZ(...) \
- (sizeof((const struct uverbs_attr_def * const []){__VA_ARGS__}) /\
- sizeof(const struct uverbs_attr_def *))
-#define _UVERBS_METHOD(_id, _handler, _flags, ...) \
- ((const struct uverbs_method_def) { \
- .id = _id, \
- .flags = _flags, \
- .handler = _handler, \
- .num_attrs = _UVERBS_METHOD_ATTRS_SZ(__VA_ARGS__), \
- .attrs = &(const struct uverbs_attr_def * const []){__VA_ARGS__} })
-#define DECLARE_UVERBS_METHOD(_name, _id, _handler, ...) \
- const struct uverbs_method_def _name = \
- _UVERBS_METHOD(_id, _handler, 0, ##__VA_ARGS__)
-#define DECLARE_UVERBS_CTX_METHOD(_name, _id, _handler, _flags, ...) \
- const struct uverbs_method_def _name = \
- _UVERBS_METHOD(_id, _handler, \
- UVERBS_ACTION_FLAG_CREATE_ROOT, \
- ##__VA_ARGS__)
#define _UVERBS_OBJECT_METHODS_SZ(...) \
(sizeof((const struct uverbs_method_def * const []){__VA_ARGS__}) / \
sizeof(const struct uverbs_method_def *))
--- a/include/rdma/uverbs_named_ioctl.h
+++ b/include/rdma/uverbs_named_ioctl.h
@@ -45,14 +45,32 @@
#define UVERBS_HANDLER(id) _UVERBS_NAME(UVERBS_MODULE_NAME, _handler_##id)
#define UVERBS_OBJECT(id) _UVERBS_NAME(UVERBS_MOUDLE_NAME, _object_##id)
-#define DECLARE_UVERBS_NAMED_METHOD(id, ...) \
- DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, UVERBS_HANDLER(id), ##__VA_ARGS__)
+#define UVERBS_METHOD_ATTRS(id) \
+ _UVERBS_NAME(UVERBS_MODULE_NAME, _method_attrs_##id)
-#define DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(id, handler, ...) \
- DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, handler, ##__VA_ARGS__)
-
-#define DECLARE_UVERBS_NAMED_METHOD_NO_OVERRIDE(id, handler, ...) \
- DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, NULL, ##__VA_ARGS__)
+#define DECLARE_UVERBS_NAMED_METHOD(_method_id, ...) \
+ static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
+ _method_id)[] = { __VA_ARGS__ }; \
+ static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
+ .id = _method_id, \
+ .handler = UVERBS_HANDLER(_method_id), \
+ .num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
+ .attrs = &UVERBS_METHOD_ATTRS(_method_id), \
+ }
+
+/* Create a standard destroy method using the default handler. The handle_attr
+ * argument must be the attribute specifying the handle to destroy, the
+ * default handler does not support any other attributes.
+ */
+#define DECLARE_UVERBS_NAMED_METHOD_DESTROY(_method_id, _handle_attr) \
+ static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
+ _method_id)[] = { _handle_attr }; \
+ static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
+ .id = _method_id, \
+ .handler = uverbs_destroy_def_handler, \
+ .num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
+ .attrs = &UVERBS_METHOD_ATTRS(_method_id), \
+ }
#define DECLARE_UVERBS_NAMED_OBJECT(id, ...) \
DECLARE_UVERBS_OBJECT(UVERBS_OBJECT(id), id, ##__VA_ARGS__)
@@ -62,33 +80,22 @@
#define _UVERBS_COMP_NAME(x, y, z) _UVERBS_NAME(_UVERBS_NAME(x, y), z)
-#define UVERBS_NO_OVERRIDE NULL
-
-/* This declares a parsing tree with one object and one method. This is usually
- * used for merging driver attributes to the common attributes. The driver has
- * a chance to override the handler and type attrs of the original object.
- * The __VA_ARGS__ just contains a list of attributes.
- */
-#define ADD_UVERBS_ATTRIBUTES(_name, _object, _method, _type_attrs, _handler, ...) \
-static DECLARE_UVERBS_METHOD(_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
- _method_, _name), \
- _method, _handler, ##__VA_ARGS__); \
- \
-static DECLARE_UVERBS_OBJECT(_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
- _object_, _name), \
- _object, _type_attrs, \
- &_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
- _method_, _name)); \
- \
-static DECLARE_UVERBS_OBJECT_TREE(_name, \
- &_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, \
- _object_, _name))
-
-/* A very common use case is that the driver doesn't override the handler and
- * type_attrs. Therefore, we provide a simplified macro for this common case.
+/* Used by drivers to declare a complete parsing tree for a single method that
+ * differs only in having additional driver specific attributes.
*/
-#define ADD_UVERBS_ATTRIBUTES_SIMPLE(_name, _object, _method, ...) \
- ADD_UVERBS_ATTRIBUTES(_name, _object, _method, UVERBS_NO_OVERRIDE, \
- UVERBS_NO_OVERRIDE, ##__VA_ARGS__)
+#define ADD_UVERBS_ATTRIBUTES_SIMPLE(_name, _object_id, _method_id, ...) \
+ static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
+ _method_id)[] = { __VA_ARGS__ }; \
+ static const struct uverbs_method_def UVERBS_METHOD(_method_id) = { \
+ .id = _method_id, \
+ .num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
+ .attrs = &UVERBS_METHOD_ATTRS(_method_id), \
+ }; \
+ static DECLARE_UVERBS_OBJECT( \
+ _UVERBS_COMP_NAME(UVERBS_MODULE_NAME, _object_id, _name), \
+ _object_id, NULL, &UVERBS_METHOD(_method_id)); \
+ static DECLARE_UVERBS_OBJECT_TREE( \
+ _name, \
+ &_UVERBS_COMP_NAME(UVERBS_MODULE_NAME, _object_id, _name))
#endif