RDMA/uverbs: Expose the new GID query API to user space

Expose the query GID table and entry API to user space by adding two new methods and method handlers to the device object. This API provides a faster way to query a GID table using single call and will be used in libibverbs to improve current approach that requires multiple calls to open, close and read multiple sysfs files for a single GID table entry.

Avihai Horon committed 6 years ago

Commit 9f85cbe1 parent c4b4d544 files · +220 −4Browse files

Showing the changes to include/uapi (2 of 4 files). Show all

Unified · Split

2 files

include/uapi/rdma/ib_user_ioctl_cmds.h +16 −0
include/uapi/rdma/ib_user_ioctl_verbs.h +6 −0

include/uapi/rdma/ib_user_ioctl_cmds.h+16−0

@@ -70,6 +70,8 @@ enum uverbs_methods_device { · 69 unmodified lines
70	70	UVERBS_METHOD_QUERY_PORT,
71	71	UVERBS_METHOD_GET_CONTEXT,
72	72	UVERBS_METHOD_QUERY_CONTEXT,
	73	+ UVERBS_METHOD_QUERY_GID_TABLE,
	74	+ UVERBS_METHOD_QUERY_GID_ENTRY,
73	75	};
74	76
75	77	enum uverbs_attrs_invoke_write_cmd_attr_ids {
@@ -352,4 +354,18 @@ enum uverbs_attrs_async_event_create { · 276 unmodified lines
352	354	UVERBS_ATTR_ASYNC_EVENT_ALLOC_FD_HANDLE,
353	355	};
354	356
	357	+enum uverbs_attrs_query_gid_table_cmd_attr_ids {
	358	+ UVERBS_ATTR_QUERY_GID_TABLE_ENTRY_SIZE,
	359	+ UVERBS_ATTR_QUERY_GID_TABLE_FLAGS,
	360	+ UVERBS_ATTR_QUERY_GID_TABLE_RESP_ENTRIES,
	361	+ UVERBS_ATTR_QUERY_GID_TABLE_RESP_NUM_ENTRIES,
	362	+};
	363	+
	364	+enum uverbs_attrs_query_gid_entry_cmd_attr_ids {
	365	+ UVERBS_ATTR_QUERY_GID_ENTRY_PORT,
	366	+ UVERBS_ATTR_QUERY_GID_ENTRY_GID_INDEX,
	367	+ UVERBS_ATTR_QUERY_GID_ENTRY_FLAGS,
	368	+ UVERBS_ATTR_QUERY_GID_ENTRY_RESP_ENTRY,
	369	+};
	370	+
355	371	#endif

include/uapi/rdma/ib_user_ioctl_verbs.h+6−0

@@ -251,6 +251,12 @@ enum rdma_driver_id { · 250 unmodified lines
251	251	RDMA_DRIVER_SIW,
252	252	};
253	253
	254	+enum ib_uverbs_gid_type {
	255	+ IB_UVERBS_GID_TYPE_IB,
	256	+ IB_UVERBS_GID_TYPE_ROCE_V1,
	257	+ IB_UVERBS_GID_TYPE_ROCE_V2,
	258	+};
	259	+
254	260	struct ib_uverbs_gid_entry {
255	261	__aligned_u64 gid[2];
256	262	__u32 gid_index;