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RDMA/uverbs: Simplify UVERBS_OBJECT and _TREE family of macros 

Instead of the large set of indirecting macros, define the few needed
macros to directly instantiate the struct uverbs_oject_tree_def and
associated objects 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>
This commit is contained in:
Jason Gunthorpe 2018-07-04 08:50:27 +03:00
parent 595c7736d4
commit 6c61d2a55c
6 changed files with 70 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/core/uverbs.h
View File

@ -238,8 +238,6 @@ void ib_uverbs_detach_umcast(struct ib_qp *qp,
struct ib_uqp_object *uobj);
void create_udata(struct uverbs_attr_bundle *ctx, struct ib_udata *udata);
extern const struct uverbs_attr_def uverbs_uhw_compat_in;
extern const struct uverbs_attr_def uverbs_uhw_compat_out;
long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
int uverbs_destroy_def_handler(struct ib_device *ib_dev,
struct ib_uverbs_file *file,

46
drivers/infiniband/core/uverbs_std_types.c
View File

@ -216,18 +216,6 @@ int uverbs_destroy_def_handler(struct ib_device *ib_dev,
return 0;
}
/*
* This spec is used in order to pass information to the hardware driver in a
* legacy way. Every verb that could get driver specific data should get this
* spec.
*/
const struct uverbs_attr_def uverbs_uhw_compat_in =
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_UHW_IN, UVERBS_ATTR_MIN_SIZE(0),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO));
const struct uverbs_attr_def uverbs_uhw_compat_out =
UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_UHW_OUT, UVERBS_ATTR_MIN_SIZE(0),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO));
void create_udata(struct uverbs_attr_bundle *ctx, struct ib_udata *udata)
{
/*
@ -300,23 +288,23 @@ DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_PD,
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_DEVICE, NULL);
static DECLARE_UVERBS_OBJECT_TREE(uverbs_default_objects,
&UVERBS_OBJECT(UVERBS_OBJECT_DEVICE),
&UVERBS_OBJECT(UVERBS_OBJECT_PD),
&UVERBS_OBJECT(UVERBS_OBJECT_MR),
&UVERBS_OBJECT(UVERBS_OBJECT_COMP_CHANNEL),
&UVERBS_OBJECT(UVERBS_OBJECT_CQ),
&UVERBS_OBJECT(UVERBS_OBJECT_QP),
&UVERBS_OBJECT(UVERBS_OBJECT_AH),
&UVERBS_OBJECT(UVERBS_OBJECT_MW),
&UVERBS_OBJECT(UVERBS_OBJECT_SRQ),
&UVERBS_OBJECT(UVERBS_OBJECT_FLOW),
&UVERBS_OBJECT(UVERBS_OBJECT_WQ),
&UVERBS_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL),
&UVERBS_OBJECT(UVERBS_OBJECT_XRCD),
&UVERBS_OBJECT(UVERBS_OBJECT_FLOW_ACTION),
&UVERBS_OBJECT(UVERBS_OBJECT_DM),
&UVERBS_OBJECT(UVERBS_OBJECT_COUNTERS));
DECLARE_UVERBS_OBJECT_TREE(uverbs_default_objects,
&UVERBS_OBJECT(UVERBS_OBJECT_DEVICE),
&UVERBS_OBJECT(UVERBS_OBJECT_PD),
&UVERBS_OBJECT(UVERBS_OBJECT_MR),
&UVERBS_OBJECT(UVERBS_OBJECT_COMP_CHANNEL),
&UVERBS_OBJECT(UVERBS_OBJECT_CQ),
&UVERBS_OBJECT(UVERBS_OBJECT_QP),
&UVERBS_OBJECT(UVERBS_OBJECT_AH),
&UVERBS_OBJECT(UVERBS_OBJECT_MW),
&UVERBS_OBJECT(UVERBS_OBJECT_SRQ),
&UVERBS_OBJECT(UVERBS_OBJECT_FLOW),
&UVERBS_OBJECT(UVERBS_OBJECT_WQ),
&UVERBS_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL),
&UVERBS_OBJECT(UVERBS_OBJECT_XRCD),
&UVERBS_OBJECT(UVERBS_OBJECT_FLOW_ACTION),
&UVERBS_OBJECT(UVERBS_OBJECT_DM),
&UVERBS_OBJECT(UVERBS_OBJECT_COUNTERS));
const struct uverbs_object_tree_def *uverbs_default_get_objects(void)
{

2
drivers/infiniband/core/uverbs_std_types_cq.c
View File

@ -165,7 +165,7 @@ DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_CREATE,
&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_FLAGS, UVERBS_ATTR_TYPE(u32)),
&UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_CQ_RESP_CQE, UVERBS_ATTR_TYPE(u32),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
&uverbs_uhw_compat_in, &uverbs_uhw_compat_out);
UVERBS_ATTR_UHW());
static int UVERBS_HANDLER(UVERBS_METHOD_CQ_DESTROY)(struct ib_device *ib_dev,
struct ib_uverbs_file *file,

8
drivers/infiniband/hw/mlx5/devx.c
View File

@ -1079,24 +1079,24 @@ DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)));
static DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN));
static DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
&UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY));
static DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM,
DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM,
&UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG));
static DECLARE_UVERBS_OBJECT_TREE(devx_objects,
DECLARE_UVERBS_OBJECT_TREE(devx_objects,
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX),
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ),
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM));

44
include/rdma/uverbs_ioctl.h
View File

@ -253,33 +253,33 @@ struct uverbs_object_tree_def {
__VA_ARGS__ }, \
})
/*
* This spec is used in order to pass information to the hardware driver in a
* legacy way. Every verb that could get driver specific data should get this
* spec.
*/
#define UVERBS_ATTR_UHW() \
&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_UHW_IN, \
UVERBS_ATTR_SIZE(0, USHRT_MAX), \
UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)), \
&UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_UHW_OUT, \
UVERBS_ATTR_SIZE(0, USHRT_MAX), \
UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO))
/*
* =======================================
* Declaration helpers
* =======================================
*/
#define _UVERBS_OBJECT_METHODS_SZ(...) \
(sizeof((const struct uverbs_method_def * const []){__VA_ARGS__}) / \
sizeof(const struct uverbs_method_def *))
#define _UVERBS_OBJECT(_id, _type_attrs, ...) \
((const struct uverbs_object_def) { \
.id = _id, \
.type_attrs = _type_attrs, \
.num_methods = _UVERBS_OBJECT_METHODS_SZ(__VA_ARGS__), \
.methods = &(const struct uverbs_method_def * const []){__VA_ARGS__} })
#define DECLARE_UVERBS_OBJECT(_name, _id, _type_attrs, ...) \
const struct uverbs_object_def _name = \
_UVERBS_OBJECT(_id, _type_attrs, ##__VA_ARGS__)
#define _UVERBS_TREE_OBJECTS_SZ(...) \
(sizeof((const struct uverbs_object_def * const []){__VA_ARGS__}) / \
sizeof(const struct uverbs_object_def *))
#define _UVERBS_OBJECT_TREE(...) \
((const struct uverbs_object_tree_def) { \
.num_objects = _UVERBS_TREE_OBJECTS_SZ(__VA_ARGS__), \
.objects = &(const struct uverbs_object_def * const []){__VA_ARGS__} })
#define DECLARE_UVERBS_OBJECT_TREE(_name, ...) \
const struct uverbs_object_tree_def _name = \
_UVERBS_OBJECT_TREE(__VA_ARGS__)
#define DECLARE_UVERBS_OBJECT_TREE(_name, ...) \
static const struct uverbs_object_def *const _name##_ptr[] = { \
__VA_ARGS__, \
}; \
static const struct uverbs_object_tree_def _name = { \
.num_objects = ARRAY_SIZE(_name##_ptr), \
.objects = &_name##_ptr, \
}
/* =================================================
* Parsing infrastructure

38
include/rdma/uverbs_named_ioctl.h
View File

@ -45,8 +45,9 @@
#define UVERBS_HANDLER(id) _UVERBS_NAME(UVERBS_MODULE_NAME, _handler_##id)
#define UVERBS_OBJECT(id) _UVERBS_NAME(UVERBS_MOUDLE_NAME, _object_##id)
#define UVERBS_METHOD_ATTRS(id) \
_UVERBS_NAME(UVERBS_MODULE_NAME, _method_attrs_##id)
/* These are static so they do not need to be qualified */
#define UVERBS_METHOD_ATTRS(method_id) _method_attrs_##method_id
#define UVERBS_OBJECT_METHODS(object_id) _object_methods_##object_id
#define DECLARE_UVERBS_NAMED_METHOD(_method_id, ...) \
static const struct uverbs_attr_def *const UVERBS_METHOD_ATTRS( \
@ -72,14 +73,19 @@
.attrs = &UVERBS_METHOD_ATTRS(_method_id), \
}
#define DECLARE_UVERBS_NAMED_OBJECT(id, ...) \
DECLARE_UVERBS_OBJECT(UVERBS_OBJECT(id), id, ##__VA_ARGS__)
#define DECLARE_UVERBS_NAMED_OBJECT(_object_id, _type_attrs, ...) \
static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
_object_id)[] = { __VA_ARGS__ }; \
const struct uverbs_object_def UVERBS_OBJECT(_object_id) = { \
.id = _object_id, \
.type_attrs = _type_attrs, \
.num_methods = ARRAY_SIZE(UVERBS_OBJECT_METHODS(_object_id)), \
.methods = &UVERBS_OBJECT_METHODS(_object_id) \
}
#define DECLARE_UVERBS_GLOBAL_METHODS(_name, ...) \
DECLARE_UVERBS_NAMED_OBJECT(_name, NULL, ##__VA_ARGS__)
#define _UVERBS_COMP_NAME(x, y, z) _UVERBS_NAME(_UVERBS_NAME(x, y), z)
/* Used by drivers to declare a complete parsing tree for a single method that
* differs only in having additional driver specific attributes.
*/
@ -91,11 +97,19 @@
.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))
static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
_object_id)[] = { &UVERBS_METHOD(_method_id) }; \
static const struct uverbs_object_def _name##_struct = { \
.id = _object_id, \
.num_methods = 1, \
.methods = &UVERBS_OBJECT_METHODS(_object_id) \
}; \
static const struct uverbs_object_def *const _name##_ptrs[] = { \
&_name##_struct, \
}; \
static const struct uverbs_object_tree_def _name = { \
.num_objects = 1, \
.objects = &_name##_ptrs, \
}
#endif