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![Jason Gunthorpe](/assets/img/avatar_default.png)
Now that all callers provide a non-NULL attrs the ufile is redundant. Adjust things so that the context handling is done inside alloc_uobj, and the ib_uverbs_get_ucontext_file() is avoided if we already have the context. Link: https://lore.kernel.org/r/1578504126-9400-13-git-send-email-yishaih@mellanox.com Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
191 lines
6.1 KiB
C
191 lines
6.1 KiB
C
/*
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* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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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_WRITE);
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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);
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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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