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