From 595c7736d48037d67e7926f5d3ebf484b95b1d13 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Wed, 4 Jul 2018 08:50:26 +0300 Subject: [PATCH] RDMA/uverbs: Simplify method definition macros 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 Signed-off-by: Leon Romanovsky --- .../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 +- .../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 | 73 ++++++++++--------- 8 files changed, 60 insertions(+), 74 deletions(-) diff --git a/drivers/infiniband/core/uverbs_std_types_counters.c b/drivers/infiniband/core/uverbs_std_types_counters.c index 6d0b1ce9fc1f..61fd65bc9496 100644 --- 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, diff --git a/drivers/infiniband/core/uverbs_std_types_cq.c b/drivers/infiniband/core/uverbs_std_types_cq.c index f67b0895b48c..ca0f6a7435d0 100644 --- 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_CQ_DESTROY)(struct ib_device *ib_dev, 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)), diff --git a/drivers/infiniband/core/uverbs_std_types_dm.c b/drivers/infiniband/core/uverbs_std_types_dm.c index d294660a2e06..75ac20bed5e4 100644 --- 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_DM_ALLOC)(struct ib_device *ib_dev, 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(UVERBS_METHOD_DM_ALLOC, 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, diff --git a/drivers/infiniband/core/uverbs_std_types_flow_action.c b/drivers/infiniband/core/uverbs_std_types_flow_action.c index 1ba55d4ef590..1a572bdeff6a 100644 --- 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 uverbs_flow_action_esp_replay[] = { }, }; -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(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE, &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(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY, &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, diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c index d7f7ba3802af..0366814b81c2 100644 --- 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)), diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index 2f75edc010ab..ecd0900681fa 100644 --- 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_uobject *uobject, 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_IB_METHOD_DEVX_UMEM_REG, &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_IB_METHOD_DEVX_OTHER, 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_IB_METHOD_DEVX_OBJ_CREATE, 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_IB_METHOD_DEVX_OBJ_MODIFY, 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, diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h index a7246e9cb148..12fa0eef0ab0 100644 --- 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 *)) diff --git a/include/rdma/uverbs_named_ioctl.h b/include/rdma/uverbs_named_ioctl.h index 228421f2a427..06eac48ec4f2 100644 --- 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(_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), \ + } -#define DECLARE_UVERBS_NAMED_METHOD_NO_OVERRIDE(id, handler, ...) \ - DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, NULL, ##__VA_ARGS__) +/* 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 -- 2.39.5