selftests/net/bpf_offload.py

7 # June 1991 as shown in the file COPYING in the top-level directory of this
38 bpf_test_dir = os.path.dirname(os.path.realpath(__file__))
53     log_level -= sub
101     Run a command in subprocess and return tuple of (retval, stdout);
104     proc = subprocess.Popen(cmd, shell=shell, stdout=subprocess.PIPE,
115     stdout, stderr = proc.communicate()
116     stdout = stdout.decode("utf-8")
117     stderr = stderr.decode("utf-8")
118     proc.stdout.close()
122     if stderr[-1] == "\n":
123         stderr = stderr[:-1]
127         "RETCODE: %d\n%s STDOUT:\n%s%s STDERR:%s\n%s END: %s" %
128         (proc.returncode, sec, stdout, sec, stderr,
132         if len(stderr) > 0 and stderr[-1] == "\n":
133             stderr = stderr[:-1]
137         return proc.returncode, stdout, stderr
139         return proc.returncode, stdout
142     cmd("rm -f %s" % (f))
157         ret, stdout, stderr = cmd(ns + name + " " + params + args,
160         ret, stdout = cmd(ns + name + " " + params + args,
163     if JSON and len(stdout.strip()) != 0:
164         out = json.loads(stdout)
166         out = stdout
174     return tool("bpftool", args, {"json":"-p"}, JSON=JSON, ns=ns,
219     args = "prog load %s %s" % (os.path.join(bpf_test_dir, sample), file_name)
234         args = "-force " + args
235     return tool("ip", args, {"json":"-j"}, JSON=JSON, ns=ns,
239     return tool("tc", args, {"json":"-p"}, JSON=JSON, ns=ns,
245 def bpf_obj(name, sec="xdp", path=bpf_test_dir,):  argument
246     return "obj %s sec %s" % (os.path.join(path, name), sec)
288     def __init__(self, path):  argument
289         self.path = path
290         self._dict = self._debugfs_dir_read(path)
304         cmd("echo '%s' > %s/%s" % (value, self.path, key))
307         _, out = cmd('cat %s/%s' % (self.path, key))
310     def _debugfs_dir_read(self, path):  argument
313         log("DebugFS state for %s" % (path), "")
316         _, out = cmd('ls ' + path)
321             p = os.path.join(path, f)
325             if os.path.isfile(p):
328                     cmd('echo deadbeef > %s/%s' % (path, f))
329                 _, out = cmd('cat %s/%s' % (path, f))
331             elif os.path.isdir(p):
354         path = os.path.join(self.dfs_dir, "bpf_bound_progs")
355         _, progs = cmd('ls %s' % (path))
359         progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs"))
393         path = os.path.join(self.dfs_dir, f)
394         _, data = cmd('cat %s' % (path))
456         args = "-s filter show dev %s ingress" % (self['ifname'])
519         args = "hw-tc-offload %s" % ("on" if enable else "off")
520         return ethtool(self, "-K", args, fail=fail)
529         cmd("rm -f %s" % (f))
560     fail(err["error"].find("No such device") == -1,
628     start_test("Test multi-attachment XDP - %s + offload..." %
648     start_test("Test multi-attachment XDP - replace...")
650     fail(ret == 0, "Replaced one of programs without -force")
653     start_test("Test multi-attachment XDP - remove without mode...")
672     start_test("Test multi-attachment XDP - reattach...")
680     start_test("Test multi-attachment XDP - device remove...")
690 parser.add_argument("--log", help="output verbose log to given file")
694     logfile.write("# -*-Org-*-")
713 if not os.path.isdir("/sys/bus/netdevsim/"):
719 if out.find("/sys/kernel/debug type debugfs") == -1:
720     cmd("mount -t debugfs none /sys/kernel/debug")
732 if err.find("Error: Failed to find qdisc with specified handle.") == -1:
758     start_test("Test TC non-offloaded...")
762     start_test("Test TC non-offloaded isn't getting bound...")
808     start_test("Test non-0 chain offload...")
878     start_test("Test TC offload is device-bound...")
928     fail(ret == 0, "Replaced XDP program without -force")
933     fail(ret != 0, "Could not replace XDP program with -force")
940          "Device parameters reported for non-offloaded program")
963     start_test("Test non-offload XDP attaching to HW...")
968     fail(ret == 0, "attached non-offloaded XDP program to HW")
969     check_extack_nsim(err, "xdpoffload of non-bound program.", args)
1096     time_diff = end - start
1169         fail(ret == 0, "updated non-existing key")
1170         fail(err["error"].find("No such file or directory") == -1,
1180         fail(err["error"].find("File exists") == -1,
1204         fail(err["error"].find("No such file or directory") == -1,
1216         fail(err["error"].find("No such file or directory") == -1,
1230     start_test("Test map creation fail path...")
1240     start_test("Test multi-dev ASIC program reuse...")
1259     start_test("Test multi-dev ASIC cross-dev replace...")
1261     fail(ret == 0, "cross-ASIC program allowed")
1264         fail(ret == 0, "cross-ASIC program allowed")
1266     start_test("Test multi-dev ASIC cross-dev install...")
1272     fail(ret == 0, "cross-ASIC program allowed")
1277         fail(ret == 0, "cross-ASIC program allowed")
1280     start_test("Test multi-dev ASIC cross-dev map reuse...")
1298          "error message missing for cross-ASIC map")
1306          "error message missing for cross-ASIC map")
1308     start_test("Test multi-dev ASIC cross-dev destruction...")
1319     start_test("Test multi-dev ASIC cross-dev destruction - move...")
1332     start_test("Test multi-dev ASIC cross-dev destruction - orphaned...")
1336     print("%s: OK" % (os.path.basename(__file__)))