forked from luck/tmp_suning_uos_patched
IB/core: Add DEVICE object and root tree structure
This adds the DEVICE object. This object supports creating the context that all objects are created from. Moreover, it supports executing methods which are related to the device itself, such as QUERY_DEVICE. This is a singleton object (per file instance). All standard objects are put in the root structure. This root will later on be used in drivers as the source for their whole parsing tree. Later on, when new features are added, these drivers could mix this root with other customized objects. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -257,3 +257,20 @@ DECLARE_UVERBS_OBJECT(uverbs_object_xrcd, UVERBS_OBJECT_XRCD,
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DECLARE_UVERBS_OBJECT(uverbs_object_pd, UVERBS_OBJECT_PD,
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/* 2 is used in order to free the PD after MRs */
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&UVERBS_TYPE_ALLOC_IDR(2, uverbs_free_pd));
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DECLARE_UVERBS_OBJECT(uverbs_object_device, UVERBS_OBJECT_DEVICE, NULL);
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DECLARE_UVERBS_OBJECT_TREE(uverbs_default_objects,
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&uverbs_object_device,
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&uverbs_object_pd,
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&uverbs_object_mr,
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&uverbs_object_comp_channel,
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&uverbs_object_cq,
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&uverbs_object_qp,
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&uverbs_object_ah,
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&uverbs_object_mw,
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&uverbs_object_srq,
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&uverbs_object_flow,
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&uverbs_object_wq,
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&uverbs_object_rwq_ind_table,
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&uverbs_object_xrcd);
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@ -133,16 +133,51 @@ struct uverbs_root_spec {
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* =======================================
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*/
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struct uverbs_attr_def {
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u16 id;
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struct uverbs_attr_spec attr;
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};
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struct uverbs_method_def {
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u16 id;
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/* Combination of bits from enum UVERBS_ACTION_FLAG_XXXX */
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u32 flags;
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size_t num_attrs;
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const struct uverbs_attr_def * const (*attrs)[];
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int (*handler)(struct ib_device *ib_dev, struct ib_uverbs_file *ufile,
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struct uverbs_attr_bundle *ctx);
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};
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struct uverbs_object_def {
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u16 id;
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const struct uverbs_obj_type *type_attrs;
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size_t num_methods;
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const struct uverbs_method_def * const (*methods)[];
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};
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struct uverbs_object_tree_def {
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size_t num_objects;
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const struct uverbs_object_def * const (*objects)[];
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};
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#define _UVERBS_OBJECT(_id, _type_attrs, ...) \
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((const struct uverbs_object_def) { \
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.id = _id, \
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.type_attrs = _type_attrs})
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#define DECLARE_UVERBS_OBJECT(_name, _id, _type_attrs, ...) \
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const struct uverbs_object_def _name = \
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_UVERBS_OBJECT(_id, _type_attrs, ##__VA_ARGS__)
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#define _UVERBS_TREE_OBJECTS_SZ(...) \
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(sizeof((const struct uverbs_object_def * const []){__VA_ARGS__}) / \
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sizeof(const struct uverbs_object_def *))
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#define _UVERBS_OBJECT_TREE(...) \
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((const struct uverbs_object_tree_def) { \
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.num_objects = _UVERBS_TREE_OBJECTS_SZ(__VA_ARGS__), \
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.objects = &(const struct uverbs_object_def * const []){__VA_ARGS__} })
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#define DECLARE_UVERBS_OBJECT_TREE(_name, ...) \
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const struct uverbs_object_tree_def _name = \
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_UVERBS_OBJECT_TREE(__VA_ARGS__)
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/* =================================================
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* Parsing infrastructure
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* =================================================
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@ -35,6 +35,23 @@
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#include <rdma/uverbs_types.h>
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enum uverbs_default_objects {
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UVERBS_OBJECT_DEVICE, /* No instances of DEVICE are allowed */
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UVERBS_OBJECT_PD,
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UVERBS_OBJECT_COMP_CHANNEL,
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UVERBS_OBJECT_CQ,
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UVERBS_OBJECT_QP,
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UVERBS_OBJECT_SRQ,
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UVERBS_OBJECT_AH,
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UVERBS_OBJECT_MR,
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UVERBS_OBJECT_MW,
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UVERBS_OBJECT_FLOW,
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UVERBS_OBJECT_XRCD,
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UVERBS_OBJECT_RWQ_IND_TBL,
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UVERBS_OBJECT_WQ,
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UVERBS_OBJECT_LAST,
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};
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extern const struct uverbs_object_def uverbs_object_comp_channel;
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extern const struct uverbs_object_def uverbs_object_cq;
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extern const struct uverbs_object_def uverbs_object_qp;
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@ -47,6 +64,7 @@ extern const struct uverbs_object_def uverbs_object_mr;
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extern const struct uverbs_object_def uverbs_object_mw;
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extern const struct uverbs_object_def uverbs_object_pd;
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extern const struct uverbs_object_def uverbs_object_xrcd;
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extern const struct uverbs_object_def uverbs_object_device;
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static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type,
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bool write,
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