selftests/bpf/test_offload.py

7 # June 1991 as shown in the file COPYING in the top-level directory of this
35 bpf_test_dir = os.path.dirname(os.path.realpath(__file__))
50     log_level -= sub
98     Run a command in subprocess and return tuple of (retval, stdout);
101     proc = subprocess.Popen(cmd, shell=shell, stdout=subprocess.PIPE,
112     stdout, stderr = proc.communicate()
113     stdout = stdout.decode("utf-8")
114     stderr = stderr.decode("utf-8")
115     proc.stdout.close()
119     if stderr[-1] == "\n":
120         stderr = stderr[:-1]
124         "RETCODE: %d\n%s STDOUT:\n%s%s STDERR:%s\n%s END: %s" %
125         (proc.returncode, sec, stdout, sec, stderr,
129         if len(stderr) > 0 and stderr[-1] == "\n":
130             stderr = stderr[:-1]
134         return proc.returncode, stdout, stderr
136         return proc.returncode, stdout
139     cmd("rm -f %s" % (f))
152         ret, stdout, stderr = cmd(ns + name + " " + params + args,
155         ret, stdout = cmd(ns + name + " " + params + args,
158     if JSON and len(stdout.strip()) != 0:
159         out = json.loads(stdout)
161         out = stdout
169     return tool("bpftool", args, {"json":"-p"}, JSON=JSON, ns=ns,
212     args = "prog load %s %s" % (os.path.join(bpf_test_dir, sample), file_name)
227         args = "-force " + args
228     return tool("ip", args, {"json":"-j"}, JSON=JSON, ns=ns,
232     return tool("tc", args, {"json":"-p"}, JSON=JSON, ns=ns,
238 def bpf_obj(name, sec=".text", path=bpf_test_dir,):  argument
239     return "obj %s sec %s" % (os.path.join(path, name), sec)
281     def __init__(self, path):  argument
282         self.path = path
283         self._dict = self._debugfs_dir_read(path)
297         cmd("echo '%s' > %s/%s" % (value, self.path, key))
300         _, out = cmd('cat %s/%s' % (self.path, key))
303     def _debugfs_dir_read(self, path):  argument
306         log("DebugFS state for %s" % (path), "")
309         _, out = cmd('ls ' + path)
314             p = os.path.join(path, f)
318             if os.path.isfile(p):
321                     cmd('echo deadbeef > %s/%s' % (path, f))
322                 _, out = cmd('cat %s/%s' % (path, f))
324             elif os.path.isdir(p):
340     def ctrl_write(path, val):  argument
341         fullpath = os.path.join("/sys/bus/netdevsim/", path)
346             log("WRITE %s: %r" % (fullpath, val), -e.errno)
403         path = os.path.join(self.dfs_dir, "bpf_bound_progs")
404         _, progs = cmd('ls %s' % (path))
408         progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs"))
455         path = os.path.join(self.dfs_dir, f)
456         _, data = cmd('cat %s' % (path))
518         args = "-s filter show dev %s ingress" % (self['ifname'])
581         args = "hw-tc-offload %s" % ("on" if enable else "off")
582         return ethtool(self, "-K", args, fail=fail)
591         cmd("rm -f %s" % (f))
617     fail(err["error"].find("No such device") == -1,
624     fail(err["error"].find("No such device") == -1,
692     start_test("Test multi-attachment XDP - %s + offload..." %
712     start_test("Test multi-attachment XDP - replace...")
714     fail(ret == 0, "Replaced one of programs without -force")
717     start_test("Test multi-attachment XDP - remove without mode...")
736     start_test("Test multi-attachment XDP - reattach...")
744     start_test("Test multi-attachment XDP - device remove...")
754 parser.add_argument("--log", help="output verbose log to given file")
758     logfile.write("# -*-Org-*-")
781 if out.find("/sys/kernel/debug type debugfs") == -1:
782     cmd("mount -t debugfs none /sys/kernel/debug")
794 if err.find("Error: Failed to find qdisc with specified handle.") == -1:
820     start_test("Test TC non-offloaded...")
824     start_test("Test TC non-offloaded isn't getting bound...")
870     start_test("Test non-0 chain offload...")
940     start_test("Test TC offload is device-bound...")
990     fail(ret == 0, "Replaced XDP program without -force")
995     fail(ret != 0, "Could not replace XDP program with -force")
1002          "Device parameters reported for non-offloaded program")
1025     start_test("Test non-offload XDP attaching to HW...")
1030     fail(ret == 0, "attached non-offloaded XDP program to HW")
1031     check_extack_nsim(err, "xdpoffload of non-bound program.", args)
1040     check_extack(err, "Using device-bound program without HW_MODE flag is not supported.", args)
1094     check_extack_nsim(err, "xdpoffload of non-bound program.", args)
1158     time_diff = end - start
1231         fail(ret == 0, "updated non-existing key")
1232         fail(err["error"].find("No such file or directory") == -1,
1242         fail(err["error"].find("File exists") == -1,
1266         fail(err["error"].find("No such file or directory") == -1,
1278         fail(err["error"].find("No such file or directory") == -1,
1292     start_test("Test map creation fail path...")
1302     start_test("Test multi-dev ASIC program reuse...")
1321     start_test("Test multi-dev ASIC cross-dev replace...")
1323     fail(ret == 0, "cross-ASIC program allowed")
1326         fail(ret == 0, "cross-ASIC program allowed")
1328     start_test("Test multi-dev ASIC cross-dev install...")
1334     fail(ret == 0, "cross-ASIC program allowed")
1339         fail(ret == 0, "cross-ASIC program allowed")
1342     start_test("Test multi-dev ASIC cross-dev map reuse...")
1360          "error message missing for cross-ASIC map")
1368          "error message missing for cross-ASIC map")
1370     start_test("Test multi-dev ASIC cross-dev destruction...")
1381     start_test("Test multi-dev ASIC cross-dev destruction - move...")
1394     start_test("Test multi-dev ASIC cross-dev destruction - orphaned...")
1401     print("%s: OK" % (os.path.basename(__file__)))