diff mbox series

[bpf-next,2/3] libbpf: introduce bpf_prog_test_run_xattr_opts

Message ID 20200923012841.2701378-3-songliubraving@fb.com
State Changes Requested
Delegated to: BPF Maintainers
Headers show
Series enable BPF_PROG_TEST_RUN for raw_tp | expand

Commit Message

Song Liu Sept. 23, 2020, 1:28 a.m. UTC 
This API supports new field cpu_plus in bpf_attr.test.

Signed-off-by: Song Liu <songliubraving@fb.com>
---
 tools/lib/bpf/bpf.c      | 13 ++++++++++++-
 tools/lib/bpf/bpf.h      | 11 +++++++++++
 tools/lib/bpf/libbpf.map |  1 +
 3 files changed, 24 insertions(+), 1 deletion(-)

Comments

John Fastabend Sept. 23, 2020, 4:26 a.m. UTC | #1 
Song Liu wrote:
> This API supports new field cpu_plus in bpf_attr.test.
> 
> Signed-off-by: Song Liu <songliubraving@fb.com>
> ---

Acked-by: John Fastabend <john.fastabend@gmail.com>
diff mbox series

Patch

diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 2baa1308737c8..3228dd60fa32f 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -684,7 +684,8 @@  int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
 	return ret;
 }
 
-int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
+int bpf_prog_test_run_xattr_opts(struct bpf_prog_test_run_attr *test_attr,
+				 const struct bpf_prog_test_run_opts *opts)
 {
 	union bpf_attr attr;
 	int ret;
@@ -693,6 +694,11 @@  int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
 		return -EINVAL;
 
 	memset(&attr, 0, sizeof(attr));
+	if (opts) {
+		if (!OPTS_VALID(opts, bpf_prog_test_run_opts))
+			return -EINVAL;
+		attr.test.cpu_plus = opts->cpu_plus;
+	}
 	attr.test.prog_fd = test_attr->prog_fd;
 	attr.test.data_in = ptr_to_u64(test_attr->data_in);
 	attr.test.data_out = ptr_to_u64(test_attr->data_out);
@@ -712,6 +718,11 @@  int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
 	return ret;
 }
 
+int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
+{
+	return bpf_prog_test_run_xattr_opts(test_attr, NULL);
+}
+
 static int bpf_obj_get_next_id(__u32 start_id, __u32 *next_id, int cmd)
 {
 	union bpf_attr attr;
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 8c1ac4b42f908..61318f47c8e1b 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -251,6 +251,17 @@  struct bpf_prog_bind_opts {
 
 LIBBPF_API int bpf_prog_bind_map(int prog_fd, int map_fd,
 				 const struct bpf_prog_bind_opts *opts);
+
+struct bpf_prog_test_run_opts {
+	size_t sz; /* size of this struct for forward/backward compatibility */
+	__u32 cpu_plus;
+};
+#define bpf_prog_test_run_opts__last_field cpu_plus
+
+LIBBPF_API
+int bpf_prog_test_run_xattr_opts(struct bpf_prog_test_run_attr *test_attr,
+				 const struct bpf_prog_test_run_opts *opts);
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 5f054dadf0829..c84a8bec57634 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -303,6 +303,7 @@  LIBBPF_0.1.0 {
 LIBBPF_0.2.0 {
 	global:
 		bpf_prog_bind_map;
+		bpf_prog_test_run_xattr_opts;
 		bpf_program__section_name;
 		perf_buffer__buffer_cnt;
 		perf_buffer__buffer_fd;