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netdevsim: change debugfs tree topology

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With the model where dev is represented by devlink and ports are
represented by devlink ports, make debugfs file names independent
on netdev names. Change the topology to the one illustrated
by the following example:

$ ls /sys/kernel/debug/netdevsim/
netdevsim1
$ ls /sys/kernel/debug/netdevsim/netdevsim1/
bpf_bind_accept  bpf_bind_verifier_delay  bpf_bound_progs  ports
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/
0  1
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/
bpf_map_accept  bpf_offloaded_id  bpf_tc_accept  bpf_tc_non_bound_accept  bpf_xdpdrv_accept  bpf_xdpoffload_accept  dev  ipsec
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -l
lrwxrwxrwx 1 root root 0 Apr 13 15:58 /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -> ../../../netdevsim1

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-04-25 15:59:52 +02:00 • committed by David S. Miller
parent 514cf64cc5
commit ab1d0cc004
5 changed files with 15 additions and 17 deletions
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4
tools/testing/selftests/bpf/test_offload.py
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@ -306,6 +306,8 @@ class DebugfsDir:
_, out = cmd('ls ' + path)
for f in out.split():
if f == "ports":
continue
p = os.path.join(path, f)
if os.path.isfile(p):
_, out = cmd('cat %s/%s' % (path, f))
@ -334,7 +336,7 @@ class NetdevSim:
self.ns = ""
self.dfs_dir = '/sys/kernel/debug/netdevsim/%s' % (self.dev['ifname'])
self.dfs_dir = '/sys/kernel/debug/netdevsim/netdevsim0/ports/0/'
self.dev_dir = self.dfs_dir + '/dev/'
self.dfs_refresh()