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authorMatan Barak <matanb@mellanox.com>2017-04-04 13:31:47 +0300
committerDoug Ledford <dledford@redhat.com>2017-04-05 13:28:04 -0400
commit1e7710f3f6563940bb6bbc94aa8eadfd344a86af (patch)
treefcb76beff0bfd2e9c24e7962c5afa9c40fef25d6 /include
parentIB/core: Add support for fd objects (diff)
downloadlinux-dev-1e7710f3f6563940bb6bbc94aa8eadfd344a86af.tar.xz
linux-dev-1e7710f3f6563940bb6bbc94aa8eadfd344a86af.zip
IB/core: Change completion channel to use the reworked objects schema
This patch adds the standard fd based type - completion_channel. The completion_channel is now prefixed with ib_uobject, similarly to the rest of the uobjects. This requires a few changes: (1) We define a new completion channel fd based object type. (2) completion_event and async_event are now two different types. This means they use different fops. (3) We release the completion_channel exactly as we release other idr based objects. (4) Since ib_uobjects are already kref-ed, we only add the kref to the async event. A fd object requires filling out several parameters. Its op pointer should point to uverbs_fd_ops and its size should be at least the size if ib_uobject. We use a macro to make the type declaration easier. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/rdma/uverbs_std_types.h1
-rw-r--r--include/rdma/uverbs_types.h9
2 files changed, 10 insertions, 0 deletions
diff --git a/include/rdma/uverbs_std_types.h b/include/rdma/uverbs_std_types.h
index 88856642fdf5..7771ce966952 100644
--- a/include/rdma/uverbs_std_types.h
+++ b/include/rdma/uverbs_std_types.h
@@ -35,6 +35,7 @@
#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;
diff --git a/include/rdma/uverbs_types.h b/include/rdma/uverbs_types.h
index 58674290fab0..a37692167a45 100644
--- a/include/rdma/uverbs_types.h
+++ b/include/rdma/uverbs_types.h
@@ -146,9 +146,18 @@ struct uverbs_obj_fd_type {
};
extern const struct uverbs_obj_type_class uverbs_idr_class;
+extern const struct uverbs_obj_type_class uverbs_fd_class;
#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) \
{ \
.destroy_order = _order, \