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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved.
*/
#ifndef _UVERBS_STD_TYPES__
#define _UVERBS_STD_TYPES__
#include <rdma/uverbs_types.h>
#include <rdma/uverbs_ioctl.h>
#include <rdma/ib_user_ioctl_verbs.h>
/* Returns _id, or causes a compile error if _id is not a u32.
*
* The uobj APIs should only be used with the write based uAPI to access
* object IDs. The write API must use a u32 for the object handle, which is
* checked by this macro.
*/
#define _uobj_check_id(_id) ((_id) * typecheck(u32, _id))
#define uobj_get_type(_attrs, _object) \
uapi_get_object((_attrs)->ufile->device->uapi, _object)
#define uobj_get_read(_type, _id, _attrs) \
rdma_lookup_get_uobject(uobj_get_type(_attrs, _type), (_attrs)->ufile, \
_uobj_check_id(_id), UVERBS_LOOKUP_READ, \
_attrs)
#define ufd_get_read(_type, _fdnum, _attrs) \
rdma_lookup_get_uobject(uobj_get_type(_attrs, _type), (_attrs)->ufile, \
(_fdnum)*typecheck(s32, _fdnum), \
UVERBS_LOOKUP_READ, _attrs)
static inline void *_uobj_get_obj_read(struct ib_uobject *uobj)
{
if (IS_ERR(uobj))
return ERR_CAST(uobj);
return uobj->object;
}
#define uobj_get_obj_read(_object, _type, _id, _attrs) \
((struct ib_##_object *)_uobj_get_obj_read( \
uobj_get_read(_type, _id, _attrs)))
#define uobj_get_write(_type, _id, _attrs) \
rdma_lookup_get_uobject(uobj_get_type(_attrs, _type), (_attrs)->ufile, \
_uobj_check_id(_id), UVERBS_LOOKUP_WRITE, \
_attrs)
int __uobj_perform_destroy(const struct uverbs_api_object *obj, u32 id,
struct uverbs_attr_bundle *attrs);
#define uobj_perform_destroy(_type, _id, _attrs) \
__uobj_perform_destroy(uobj_get_type(_attrs, _type), \
_uobj_check_id(_id), _attrs)
struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj,
u32 id, struct uverbs_attr_bundle *attrs);
#define uobj_get_destroy(_type, _id, _attrs) \
__uobj_get_destroy(uobj_get_type(_attrs, _type), _uobj_check_id(_id), \
_attrs)
static inline void uobj_put_destroy(struct ib_uobject *uobj)
{
rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_DESTROY);
}
static inline void uobj_put_read(struct ib_uobject *uobj)
{
rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_READ);
}
#define uobj_put_obj_read(_obj) \
uobj_put_read((_obj)->uobject)
static inline void uobj_put_write(struct ib_uobject *uobj)
{
rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_WRITE);
}
static inline void uobj_alloc_abort(struct ib_uobject *uobj,
struct uverbs_attr_bundle *attrs)
{
rdma_alloc_abort_uobject(uobj, attrs, false);
}
static inline void uobj_finalize_uobj_create(struct ib_uobject *uobj,
struct uverbs_attr_bundle *attrs)
{
/*
* Tell the core code that the write() handler has completed
* initializing the object and that the core should commit or
* abort this object based upon the return code from the write()
* method. Similar to what uverbs_finalize_uobj_create() does for
* ioctl()
*/
WARN_ON(attrs->uobject);
attrs->uobject = uobj;
}
static inline struct ib_uobject *
__uobj_alloc(const struct uverbs_api_object *obj,
struct uverbs_attr_bundle *attrs, struct ib_device **ib_dev)
{
struct ib_uobject *uobj = rdma_alloc_begin_uobject(obj, attrs);
if (!IS_ERR(uobj))
*ib_dev = attrs->context->device;
return uobj;
}
#define uobj_alloc(_type, _attrs, _ib_dev) \
__uobj_alloc(uobj_get_type(_attrs, _type), _attrs, _ib_dev)
static inline void uverbs_flow_action_fill_action(struct ib_flow_action *action,
struct ib_uobject *uobj,
struct ib_device *ib_dev,
enum ib_flow_action_type type)
{
atomic_set(&action->usecnt, 0);
action->device = ib_dev;
action->type = type;
action->uobject = uobj;
uobj->object = action;
}
struct ib_uflow_resources {
size_t max;
size_t num;
size_t collection_num;
size_t counters_num;
struct ib_counters **counters;
struct ib_flow_action **collection;
};
struct ib_uflow_object {
struct ib_uobject uobject;
struct ib_uflow_resources *resources;
};
struct ib_uflow_resources *flow_resources_alloc(size_t num_specs);
void flow_resources_add(struct ib_uflow_resources *uflow_res,
enum ib_flow_spec_type type,
void *ibobj);
void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res);
static inline void ib_set_flow(struct ib_uobject *uobj, struct ib_flow *ibflow,
struct ib_qp *qp, struct ib_device *device,
struct ib_uflow_resources *uflow_res)
{
struct ib_uflow_object *uflow;
uobj->object = ibflow;
ibflow->uobject = uobj;
if (qp) {
atomic_inc(&qp->usecnt);
ibflow->qp = qp;
}
ibflow->device = device;
uflow = container_of(uobj, typeof(*uflow), uobject);
uflow->resources = uflow_res;
}
struct uverbs_api_object {
const struct uverbs_obj_type *type_attrs;
const struct uverbs_obj_type_class *type_class;
u8 disabled:1;
u32 id;
};
static inline u32 uobj_get_object_id(struct ib_uobject *uobj)
{
return uobj->uapi_object->id;
}
#endif
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