[PATCH rdma-next V1 04/13] IB/core: Declare an object instead of declaring only type attributes

Matan Barak
2017-08-03T13:06:58Z

Switch all uverbs_type_attrs_xxxx with DECLARE_UVERBS_OBJECT
macros. This will be later used in order to embed the object
specific methods in the objects as well.

Signed-off-by: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/core/uverbs_std_types.c | 112 +++++++++++++----------------
include/rdma/uverbs_ioctl.h | 16 +++++
include/rdma/uverbs_std_types.h | 40 +++++------
include/rdma/uverbs_types.h | 38 ++++++----
4 files changed, 107 insertions(+), 99 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_std_types.c b/drivers/infiniband/core/uverbs_std_types.c
index ef29337..b75c7da 100644
--- a/drivers/infiniband/core/uverbs_std_types.c
+++ b/drivers/infiniband/core/uverbs_std_types.c
@@ -209,67 +209,51 @@ static int uverbs_hot_unplug_completion_event_file(struct ib_uobject_file *uobj_
return 0;
};

-const struct uverbs_obj_fd_type uverbs_type_attrs_comp_channel = {
- .type = UVERBS_TYPE_ALLOC_FD(sizeof(struct ib_uverbs_completion_event_file), 0),
- .context_closed = uverbs_hot_unplug_completion_event_file,
- .fops = &uverbs_event_fops,
- .name = "[infinibandevent]",
- .flags = O_RDONLY,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_cq = {
- .type = UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_ucq_object), 0),
- .destroy_object = uverbs_free_cq,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_qp = {
- .type = UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), 0),
- .destroy_object = uverbs_free_qp,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_mw = {
- .type = UVERBS_TYPE_ALLOC_IDR(0),
- .destroy_object = uverbs_free_mw,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_mr = {
- /* 1 is used in order to free the MR after all the MWs */
- .type = UVERBS_TYPE_ALLOC_IDR(1),
- .destroy_object = uverbs_free_mr,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_srq = {
- .type = UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0),
- .destroy_object = uverbs_free_srq,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_ah = {
- .type = UVERBS_TYPE_ALLOC_IDR(0),
- .destroy_object = uverbs_free_ah,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_flow = {
- .type = UVERBS_TYPE_ALLOC_IDR(0),
- .destroy_object = uverbs_free_flow,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_wq = {
- .type = UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), 0),
- .destroy_object = uverbs_free_wq,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_rwq_ind_table = {
- .type = UVERBS_TYPE_ALLOC_IDR(0),
- .destroy_object = uverbs_free_rwq_ind_tbl,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_xrcd = {
- .type = UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), 0),
- .destroy_object = uverbs_free_xrcd,
-};
-
-const struct uverbs_obj_idr_type uverbs_type_attrs_pd = {
- /* 2 is used in order to free the PD after MRs */
- .type = UVERBS_TYPE_ALLOC_IDR(2),
- .destroy_object = uverbs_free_pd,
-};
+DECLARE_UVERBS_OBJECT(uverbs_object_comp_channel,
+ UVERBS_OBJECT_COMP_CHANNEL,
+ &UVERBS_TYPE_ALLOC_FD(0,
+ sizeof(struct ib_uverbs_completion_event_file),
+ uverbs_hot_unplug_completion_event_file,
+ &uverbs_event_fops,
+ "[infinibandevent]", O_RDONLY));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_cq, UVERBS_OBJECT_CQ,
+ &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_ucq_object), 0,
+ uverbs_free_cq));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_qp, UVERBS_OBJECT_QP,
+ &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), 0,
+ uverbs_free_qp));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_mw, UVERBS_OBJECT_MW,
+ &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_mw));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_mr, UVERBS_OBJECT_MR,
+ /* 1 is used in order to free the MR after all the MWs */
+ &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_srq, UVERBS_OBJECT_SRQ,
+ &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0,
+ uverbs_free_srq));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_ah, UVERBS_OBJECT_AH,
+ &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_ah));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_flow, UVERBS_OBJECT_FLOW,
+ &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_flow));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_wq, UVERBS_OBJECT_WQ,
+ &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), 0,
+ uverbs_free_wq));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_rwq_ind_table,
+ UVERBS_OBJECT_RWQ_IND_TBL,
+ &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_rwq_ind_tbl));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_xrcd, UVERBS_OBJECT_XRCD,
+ &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), 0,
+ uverbs_free_xrcd));
+
+DECLARE_UVERBS_OBJECT(uverbs_object_pd, UVERBS_OBJECT_PD,
+ /* 2 is used in order to free the PD after MRs */
+ &UVERBS_TYPE_ALLOC_IDR(2, uverbs_free_pd));
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index f83f563..9913008 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -127,6 +127,22 @@ struct uverbs_root_spec {
struct uverbs_object_spec_hash *object_buckets[0];
};

+/*
+ * =======================================
+ * Verbs definitions
+ * =======================================
+ */
+
+struct uverbs_object_def {
+ const struct uverbs_obj_type *type_attrs;
+};
+
+#define _UVERBS_OBJECT(_id, _type_attrs, ...) \
+ ((const struct uverbs_object_def) { \
+ .type_attrs = _type_attrs})
+#define DECLARE_UVERBS_OBJECT(_name, _id, _type_attrs, ...) \
+ const struct uverbs_object_def _name = \
+ _UVERBS_OBJECT(_id, _type_attrs, ##__VA_ARGS__)
/* =================================================
* Parsing infrastructure
* =================================================
diff --git a/include/rdma/uverbs_std_types.h b/include/rdma/uverbs_std_types.h
index 7771ce9..eda271b 100644
--- a/include/rdma/uverbs_std_types.h
+++ b/include/rdma/uverbs_std_types.h
@@ -35,18 +35,18 @@

#include <rdma/uverbs_types.h>

-extern const struct uverbs_obj_fd_type uverbs_type_attrs_comp_channel;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_cq;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_qp;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_rwq_ind_table;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_wq;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_srq;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_ah;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_flow;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_mr;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_mw;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_pd;
-extern const struct uverbs_obj_idr_type uverbs_type_attrs_xrcd;
+extern const struct uverbs_object_def uverbs_object_comp_channel;
+extern const struct uverbs_object_def uverbs_object_cq;
+extern const struct uverbs_object_def uverbs_object_qp;
+extern const struct uverbs_object_def uverbs_object_rwq_ind_table;
+extern const struct uverbs_object_def uverbs_object_wq;
+extern const struct uverbs_object_def uverbs_object_srq;
+extern const struct uverbs_object_def uverbs_object_ah;
+extern const struct uverbs_object_def uverbs_object_flow;
+extern const struct uverbs_object_def uverbs_object_mr;
+extern const struct uverbs_object_def uverbs_object_mw;
+extern const struct uverbs_object_def uverbs_object_pd;
+extern const struct uverbs_object_def uverbs_object_xrcd;

static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type,
bool write,
@@ -56,22 +56,22 @@ static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type,
return rdma_lookup_get_uobject(type, ucontext, id, write);
}

-#define uobj_get_type(_type) uverbs_type_attrs_##_type.type
+#define uobj_get_type(_object) uverbs_object_##_object.type_attrs

#define uobj_get_read(_type, _id, _ucontext) \
- __uobj_get(&(_type), false, _ucontext, _id)
+ __uobj_get(_type, false, _ucontext, _id)

-#define uobj_get_obj_read(_type, _id, _ucontext) \
+#define uobj_get_obj_read(_object, _id, _ucontext) \
({ \
- struct ib_uobject *uobj = \
- __uobj_get(&uobj_get_type(_type), \
+ struct ib_uobject *__uobj = \
+ __uobj_get(uverbs_object_##_object.type_attrs, \
false, _ucontext, _id); \
\
- (struct ib_##_type *)(IS_ERR(uobj) ? NULL : uobj->object); \
+ (struct ib_##_object *)(IS_ERR(__uobj) ? NULL : __uobj->object);\
})

#define uobj_get_write(_type, _id, _ucontext) \
- __uobj_get(&(_type), true, _ucontext, _id)
+ __uobj_get(_type, true, _ucontext, _id)

static inline void uobj_put_read(struct ib_uobject *uobj)
{
@@ -108,7 +108,7 @@ static inline struct ib_uobject *__uobj_alloc(const struct uverbs_obj_type *type
}

#define uobj_alloc(_type, ucontext) \
- __uobj_alloc(&(_type), ucontext)
+ __uobj_alloc(_type, ucontext)

#endif

diff --git a/include/rdma/uverbs_types.h b/include/rdma/uverbs_types.h
index 351ea18..9760b6d 100644
--- a/include/rdma/uverbs_types.h
+++ b/include/rdma/uverbs_types.h
@@ -151,22 +151,30 @@ struct uverbs_obj_fd_type {

#define UVERBS_BUILD_BUG_ON(cond) (sizeof(char[1 - 2 * !!(cond)]) - \
sizeof(char))
-#define UVERBS_TYPE_ALLOC_FD(_size, _order) \
- { \
- .destroy_order = _order, \
- .type_class = &uverbs_fd_class, \
- .obj_size = (_size) + \
- UVERBS_BUILD_BUG_ON((_size) < \
- sizeof(struct ib_uobject_file)),\
- }
-#define UVERBS_TYPE_ALLOC_IDR_SZ(_size, _order) \
- { \
+#define UVERBS_TYPE_ALLOC_FD(_order, _obj_size, _context_closed, _fops, _name, _flags)\
+ ((&((const struct uverbs_obj_fd_type) \
+ {.type = { \
+ .destroy_order = _order, \
+ .type_class = &uverbs_fd_class, \
+ .obj_size = (_obj_size) + \
+ UVERBS_BUILD_BUG_ON((_obj_size) < sizeof(struct ib_uobject_file)), \
+ }, \
+ .context_closed = _context_closed, \
+ .fops = _fops, \
+ .name = _name, \
+ .flags = _flags}))->type)
+#define UVERBS_TYPE_ALLOC_IDR_SZ(_size, _order, _destroy_object) \
+ ((&((const struct uverbs_obj_idr_type) \
+ {.type = { \
.destroy_order = _order, \
.type_class = &uverbs_idr_class, \
.obj_size = (_size) + \
- UVERBS_BUILD_BUG_ON((_size) < \
- sizeof(struct ib_uobject)), \
- }
-#define UVERBS_TYPE_ALLOC_IDR(_order) \
- UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uobject), _order)
+ UVERBS_BUILD_BUG_ON((_size) < \
+ sizeof(struct ib_uobject)) \
+ }, \
+ .destroy_object = _destroy_object,}))->type)
+#define UVERBS_TYPE_ALLOC_IDR(_order, _destroy_object) \
+ UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uobject), _order, \
+ _destroy_object)
+
#endif