diff options
Diffstat (limited to 'tools/testing/selftests/bpf/test_offload.py')
| -rwxr-xr-x | tools/testing/selftests/bpf/test_offload.py | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py index 15a666329a34..8294ae3ffb3c 100755 --- a/tools/testing/selftests/bpf/test_offload.py +++ b/tools/testing/selftests/bpf/test_offload.py @@ -22,6 +22,7 @@ import os import pprint import random import re +import stat import string import struct import subprocess @@ -311,7 +312,11 @@ class DebugfsDir: for f in out.split(): if f == "ports": continue + p = os.path.join(path, f) + if not os.stat(p).st_mode & stat.S_IRUSR: + continue + if os.path.isfile(p): _, out = cmd('cat %s/%s' % (path, f)) dfs[f] = out.strip() @@ -330,13 +335,22 @@ class NetdevSimDev: """ Class for netdevsim bus device and its attributes. """ + @staticmethod + def ctrl_write(path, val): + fullpath = os.path.join("/sys/bus/netdevsim/", path) + try: + with open(fullpath, "w") as f: + f.write(val) + except OSError as e: + log("WRITE %s: %r" % (fullpath, val), -e.errno) + raise e + log("WRITE %s: %r" % (fullpath, val), 0) def __init__(self, port_count=1): addr = 0 while True: try: - with open("/sys/bus/netdevsim/new_device", "w") as f: - f.write("%u %u" % (addr, port_count)) + self.ctrl_write("new_device", "%u %u" % (addr, port_count)) except OSError as e: if e.errno == errno.ENOSPC: addr += 1 @@ -398,14 +412,13 @@ class NetdevSimDev: return progs def remove(self): - with open("/sys/bus/netdevsim/del_device", "w") as f: - f.write("%u" % self.addr) + self.ctrl_write("del_device", "%u" % (self.addr, )) devs.remove(self) def remove_nsim(self, nsim): self.nsims.remove(nsim) - with open("/sys/bus/netdevsim/devices/netdevsim%u/del_port" % self.addr ,"w") as f: - f.write("%u" % nsim.port_index) + self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ), + "%u" % (nsim.port_index, )) class NetdevSim: """ |