Commit Graph

20548 Commits

Author SHA1 Message Date
Amit Cohen
3eba413713 selftests: mlxsw: resource_scale: Invoke for Spectrum-3
The scale test for Spectrum-2 should be invoked for Spectrum-2 and
Spectrum-3. Add the appropriate device ID.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Danielle Ratson
e781eedae2 selftests: mlxsw: Reduce router scale running time using offload indication
Currently, the test inserts X /32 routes and for each route it is
testing that a packet sent from the first host is received by the second
host, which is very time-consuming.

Instead only validate the offload flag of each route and get the same result.

Wait between the creation of the routes and the offload validation in
order to make sure that all the routes were successfully offloaded.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Danielle Ratson
abfce9e062 selftests: mlxsw: Reduce running time using offload indication
After adding a given number of flower rules for different IPv6
addresses, the test generates traffic and ensures that each packet is
received, which is time-consuming.

Instead, test the offload indication of the tc flower rules and reduce
the running time by half.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Shalom Toledo
a865ad9996 selftests: mlxsw: Add shared buffer traffic test
Test the max shared buffer occupancy for port's pool and port's TC's (using
different types of packets).

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Shalom Toledo
4240dbd8f3 selftests: mlxsw: Add mlxsw lib
Add mlxsw lib for common defines, helpers etc.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Shalom Toledo
9fb74734f4 selftests: devlink_lib: Add devlink port helpers
Add two devlink port helpers:
 * devlink port get by netdev
 * devlink cpu port get

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Shalom Toledo
552ec3d9d2 selftests: devlink_lib: Check devlink info command is supported
Sanity check for devlink info command.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:15 -08:00
Shalom Toledo
6697b51ed3 selftests: mlxsw: Add shared buffer configuration test
Test physical ports' shared buffer configuration options using random
values related to a specific configuration option. There are 3
configuration options: pool, TC bind and portpool.

Each sub-test, test a different configuration option and random the related
values as the follow:
 * For pools, pool's size will be randomized.
 * For TC bind, pool number and threshold will be randomized.
 * For portpools, threshold will be randomized.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Danielle Ratson
1cbe65e09b selftests: mlxsw: Use busywait helper in rtnetlink test
Rtnetlink test uses offload indication checks.

Use a busywait helper and wait until the offload indication is set or
fail if it reaches timeout.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Danielle Ratson
05ef614c55 selftests: mlxsw: Use busywait helper in vxlan test
Vxlan test uses offload indication checks.

Use a busywait helper and wait until the offload indication is set or
fail if it reaches timeout.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Danielle Ratson
0c22f993c9 selftests: mlxsw: Use busywait helper in blackhole routes test
Blackhole routes test uses offload indication checks.

Use busywait helper and wait until the routes offload indication is set or
fail if it reaches timeout.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Ido Schimmel
5d66773f41 selftests: devlink_trap_l3_drops: Avoid race condition
The test checks that packets are trapped when they should egress a
router interface (RIF) that has become disabled. This is a temporary
state in a RIF's deletion sequence.

Currently, the test deletes the RIF by flushing all the IP addresses
configured on the associated netdev (br0). However, this is racy, as
this also flushes all the routes pointing to the netdev and if the
routes are deleted from the device before the RIF is disabled, then no
packets will try to egress the disabled RIF and the trap will not be
triggered.

Instead, trigger the deletion of the RIF by unlinking the mlxsw port
from the bridge that is backing the RIF. Unlike before, this will not
cause the kernel to delete the routes pointing to the bridge.

Note that due to current mlxsw locking scheme the RIF is always deleted
first, but this is going to change.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Jiri Pirko
ab2b8ab253 selftests: add a mirror test to mlxsw tc flower restrictions
Include test of forbidding to have multiple mirror actions.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Jiri Pirko
c84e903f62 selftests: add egress redirect test to mlxsw tc flower restrictions
Include test of forbidding to have redirect rule on egress-bound block.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Petr Machata
3de611b507 selftests: mlxsw: Add a RED selftest
This tests that below the queue minimum length, there is no dropping /
marking, and above max, everything is dropped / marked.

The test is structured as a core file with topology and test code, and
three wrappers: one for RED used as a root Qdisc, and two for
testing (W)RED under PRIO and ETS.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Petr Machata
4113b04823 selftests: forwarding: lib.sh: Add start_tcp_traffic
Extract a helper __start_traffic() configurable by protocol type. Allow
passing through extra mausezahn arguments. Add a wrapper,
start_tcp_traffic().

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 11:10:14 -08:00
Jiri Pirko
7a3c3f4440 selftests: netdevsim: Extend devlink trap test to include flow action cookie
Extend existing devlink trap test to include metadata type for flow
action cookie.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-25 11:05:55 -08:00
Jiri Pirko
e3294d2b15 selftests: devlink_trap_acl_drops: Add ACL traps test
Add a test to check functionality of ACL traps.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 11:55:07 -08:00
Jiri Pirko
c902a52c40 selftests: pass pref and handle to devlink_trap_drop_* helpers
Currently the helpers assume pref 1 and handle 101. Make that explicit
and pass the values from callers.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 11:55:07 -08:00
Jiri Pirko
0facf109f6 selftests: introduce test for mlxsw tc flower restrictions
Include test of forbidding to have drop rule on mixed-bound
shared block.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 11:55:07 -08:00
Roman Mashak
3c419a2cbc tc-testing: updated tdc tests for basic filter with u32 extended match rules
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-23 20:41:37 -08:00
David S. Miller
b105e8e281 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2020-02-21

The following pull-request contains BPF updates for your *net-next* tree.

We've added 25 non-merge commits during the last 4 day(s) which contain
a total of 33 files changed, 2433 insertions(+), 161 deletions(-).

The main changes are:

1) Allow for adding TCP listen sockets into sock_map/hash so they can be used
   with reuseport BPF programs, from Jakub Sitnicki.

2) Add a new bpf_program__set_attach_target() helper for adding libbpf support
   to specify the tracepoint/function dynamically, from Eelco Chaudron.

3) Add bpf_read_branch_records() BPF helper which helps use cases like profile
   guided optimizations, from Daniel Xu.

4) Enable bpf_perf_event_read_value() in all tracing programs, from Song Liu.

5) Relax BTF mandatory check if only used for libbpf itself e.g. to process
   BTF defined maps, from Andrii Nakryiko.

6) Move BPF selftests -mcpu compilation attribute from 'probe' to 'v3' as it has
   been observed that former fails in envs with low memlock, from Yonghong Song.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-21 15:22:45 -08:00
David S. Miller
e65ee2fb54 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflict resolution of ice_virtchnl_pf.c based upon work by
Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-21 13:39:34 -08:00
Jakub Sitnicki
44d28be2b8 selftests/bpf: Tests for sockmap/sockhash holding listening sockets
Now that SOCKMAP and SOCKHASH map types can store listening sockets,
user-space and BPF API is open to a new set of potential pitfalls.

Exercise the map operations, with extra attention to code paths susceptible
to races between map ops and socket cloning, and BPF helpers that work with
SOCKMAP/SOCKHASH to gain confidence that all works as expected.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200218171023.844439-12-jakub@cloudflare.com
2020-02-21 22:29:46 +01:00
Jakub Sitnicki
11318ba8ca selftests/bpf: Extend SK_REUSEPORT tests to cover SOCKMAP/SOCKHASH
Parametrize the SK_REUSEPORT tests so that the map type for storing sockets
is not hard-coded in the test setup routine.

This, together with careful state cleaning after the tests, lets us run the
test cases for REUSEPORT_ARRAY, SOCKMAP, and SOCKHASH to have test coverage
for all supported map types. The last two support only TCP sockets at the
moment.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200218171023.844439-11-jakub@cloudflare.com
2020-02-21 22:29:45 +01:00
Jakub Sitnicki
8ca30379a4 bpf, sockmap: Allow inserting listening TCP sockets into sockmap
In order for sockmap/sockhash types to become generic collections for
storing TCP sockets we need to loosen the checks during map update, while
tightening the checks in redirect helpers.

Currently sock{map,hash} require the TCP socket to be in established state,
which prevents inserting listening sockets.

Change the update pre-checks so the socket can also be in listening state.

Since it doesn't make sense to redirect with sock{map,hash} to listening
sockets, add appropriate socket state checks to BPF redirect helpers too.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200218171023.844439-5-jakub@cloudflare.com
2020-02-21 22:29:45 +01:00
Linus Torvalds
3dc55dba67 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Limit xt_hashlimit hash table size to avoid OOM or hung tasks, from
    Cong Wang.

 2) Fix deadlock in xsk by publishing global consumer pointers when NAPI
    is finished, from Magnus Karlsson.

 3) Set table field properly to RT_TABLE_COMPAT when necessary, from
    Jethro Beekman.

 4) NLA_STRING attributes are not necessary NULL terminated, deal wiht
    that in IFLA_ALT_IFNAME. From Eric Dumazet.

 5) Fix checksum handling in atlantic driver, from Dmitry Bezrukov.

 6) Handle mtu==0 devices properly in wireguard, from Jason A.
    Donenfeld.

 7) Fix several lockdep warnings in bonding, from Taehee Yoo.

 8) Fix cls_flower port blocking, from Jason Baron.

 9) Sanitize internal map names in libbpf, from Toke Høiland-Jørgensen.

10) Fix RDMA race in qede driver, from Michal Kalderon.

11) Fix several false lockdep warnings by adding conditions to
    list_for_each_entry_rcu(), from Madhuparna Bhowmik.

12) Fix sleep in atomic in mlx5 driver, from Huy Nguyen.

13) Fix potential deadlock in bpf_map_do_batch(), from Yonghong Song.

14) Hey, variables declared in switch statement before any case
    statements are not initialized. I learn something every day. Get
    rids of this stuff in several parts of the networking, from Kees
    Cook.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
  bnxt_en: Issue PCIe FLR in kdump kernel to cleanup pending DMAs.
  bnxt_en: Improve device shutdown method.
  net: netlink: cap max groups which will be considered in netlink_bind()
  net: thunderx: workaround BGX TX Underflow issue
  ionic: fix fw_status read
  net: disable BRIDGE_NETFILTER by default
  net: macb: Properly handle phylink on at91rm9200
  s390/qeth: fix off-by-one in RX copybreak check
  s390/qeth: don't warn for napi with 0 budget
  s390/qeth: vnicc Fix EOPNOTSUPP precedence
  openvswitch: Distribute switch variables for initialization
  net: ip6_gre: Distribute switch variables for initialization
  net: core: Distribute switch variables for initialization
  udp: rehash on disconnect
  net/tls: Fix to avoid gettig invalid tls record
  bpf: Fix a potential deadlock with bpf_map_do_batch
  bpf: Do not grab the bucket spinlock by default on htab batch ops
  ice: Wait for VF to be reset/ready before configuration
  ice: Don't tell the OS that link is going down
  ice: Don't reject odd values of usecs set by user
  ...
2020-02-21 11:59:51 -08:00
SeongJae Park
9e69fa4627 selftests/vm: add missed tests in run_vmtests
The commits introducing 'mlock-random-test'[1], 'map_fiex_noreplace'[2],
and 'thuge-gen'[3] have not added those in the 'run_vmtests' script and
thus the 'run_tests' command of kselftests doesn't run those.  This
commit adds those in the script.

'gup_benchmark' and 'transhuge-stress' are also not included in the
'run_vmtests', but this commit does not add those because those are for
performance measurement rather than pass/fail tests.

[1] commit 26b4224d99 ("selftests: expanding more mlock selftest")
[2] commit 91cbacc345 ("tools/testing/selftests/vm/map_fixed_noreplace.c: add test for MAP_FIXED_NOREPLACE")
[3] commit fcc1f2d5dd ("selftests: add a test program for variable huge page sizes in mmap/shmget")

Link: http://lkml.kernel.org/r/20200206085144.29126-1-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-21 11:22:15 -08:00
Roman Mashak
5c4b513e59 tc-testing: updated tdc tests for basic filter with u16 extended match rules
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-21 08:17:21 -08:00
Andrii Nakryiko
006ed53e8c selftests/bpf: Fix trampoline_count clean up logic
Libbpf's Travis CI tests caught this issue. Ensure bpf_link and bpf_object
clean up is performed correctly.

Fixes: d633d57902 ("selftest/bpf: Add test for allowed trampolines count")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20200220230546.769250-1-andriin@fb.com
2020-02-20 18:03:10 -08:00
Eelco Chaudron
933ce62d68 selftests/bpf: Update xdp_bpf2bpf test to use new set_attach_target API
Use the new bpf_program__set_attach_target() API in the xdp_bpf2bpf
selftest so it can be referenced as an example on how to use it.

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/158220520562.127661.14289388017034825841.stgit@xdp-tutorial
2020-02-20 17:48:40 -08:00
Eelco Chaudron
ff26ce5cd7 libbpf: Add support for dynamic program attach target
Currently when you want to attach a trace program to a bpf program
the section name needs to match the tracepoint/function semantics.

However the addition of the bpf_program__set_attach_target() API
allows you to specify the tracepoint/function dynamically.

The call flow would look something like this:

  xdp_fd = bpf_prog_get_fd_by_id(id);
  trace_obj = bpf_object__open_file("func.o", NULL);
  prog = bpf_object__find_program_by_title(trace_obj,
                                           "fentry/myfunc");
  bpf_program__set_expected_attach_type(prog, BPF_TRACE_FENTRY);
  bpf_program__set_attach_target(prog, xdp_fd,
                                 "xdpfilt_blk_all");
  bpf_object__load(trace_obj)

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/158220519486.127661.7964708960649051384.stgit@xdp-tutorial
2020-02-20 17:48:40 -08:00
Eelco Chaudron
dd88aed92d libbpf: Bump libpf current version to v0.0.8
New development cycles starts, bump to v0.0.8.

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/158220518424.127661.8278643006567775528.stgit@xdp-tutorial
2020-02-20 17:48:40 -08:00
Andrii Nakryiko
5327644614 libbpf: Relax check whether BTF is mandatory
If BPF program is using BTF-defined maps, BTF is required only for
libbpf itself to process map definitions. If after that BTF fails to
be loaded into kernel (e.g., if it doesn't support BTF at all), this
shouldn't prevent valid BPF program from loading. Existing
retry-without-BTF logic for creating maps will succeed to create such
maps without any problems. So, presence of .maps section shouldn't make
BTF required for kernel. Update the check accordingly.

Validated by ensuring simple BPF program with BTF-defined maps is still
loaded on old kernel without BTF support and map is correctly parsed and
created.

Fixes: abd29c9314 ("libbpf: allow specifying map definitions using BTF")
Reported-by: Julia Kartseva <hex@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200220062635.1497872-1-andriin@fb.com
2020-02-20 11:03:39 -08:00
Linus Torvalds
ca7e1fd102 linux-kselftest-5.6-rc3
This Kselftest update for Linux 5.6-rc3 consists of fixes to build
 failures and other test bugs.
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Merge tag 'linux-kselftest-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
 "Fixes to build failures and other test bugs"

* tag 'linux-kselftest-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: openat2: fix build error on newer glibc
  selftests: use LDLIBS for libraries instead of LDFLAGS
  selftests: fix too long argument
  selftests: allow detection of build failures
  Kernel selftests: tpm2: check for tpm support
  selftests/ftrace: Have pid filter test use instance flag
  selftests: fix spelling mistaked "chaigned" -> "chained"
2020-02-19 17:22:10 -08:00
David S. Miller
41f57cfde1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2020-02-19

The following pull-request contains BPF updates for your *net* tree.

We've added 10 non-merge commits during the last 10 day(s) which contain
a total of 10 files changed, 93 insertions(+), 31 deletions(-).

The main changes are:

1) batched bpf hashtab fixes from Brian and Yonghong.

2) various selftests and libbpf fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19 16:42:35 -08:00
Roman Mashak
2bb07f4e1d tc-testing: updated tdc tests for basic filter
Added tests for 'u32' extended match rules for u8 alignment.

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19 16:39:57 -08:00
Alexei Starovoitov
500897804a selftests/bpf: Fix build of sockmap_ktls.c
The selftests fails to build with:
tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c: In function ‘test_sockmap_ktls_disconnect_after_delete’:
tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c:72:37: error: ‘TCP_ULP’ undeclared (first use in this function)
   72 |  err = setsockopt(cli, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
      |                                     ^~~~~~~

Similar to commit that fixes build of sockmap_basic.c on systems with old
/usr/include fix the build of sockmap_ktls.c

Fixes: d1ba1204f2 ("selftests/bpf: Test unhashing kTLS socket after removing from map")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200219205514.3353788-1-ast@kernel.org
2020-02-20 01:17:24 +01:00
Yonghong Song
83250f2b69 selftests/bpf: Change llvm flag -mcpu=probe to -mcpu=v3
The latest llvm supports cpu version v3, which is cpu version v1
plus some additional 64bit jmp insns and 32bit jmp insn support.

In selftests/bpf Makefile, the llvm flag -mcpu=probe did runtime
probe into the host system. Depending on compilation environments,
it is possible that runtime probe may fail, e.g., due to
memlock issue. This will cause generated code with cpu version v1.
This may cause confusion as the same compiler and the same C code
generates different byte codes in different environment.

Let us change the llvm flag -mcpu=probe to -mcpu=v3 so the
generated code will be the same regardless of the compilation
environment.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200219004236.2291125-1-yhs@fb.com
2020-02-19 15:15:07 -08:00
Daniel Xu
67306f84ca selftests/bpf: Add bpf_read_branch_records() selftest
Add a selftest to test:

* default bpf_read_branch_records() behavior
* BPF_F_GET_BRANCH_RECORDS_SIZE flag behavior
* error path on non branch record perf events
* using helper to write to stack
* using helper to write to global

On host with hardware counter support:

    # ./test_progs -t perf_branches
    #27/1 perf_branches_hw:OK
    #27/2 perf_branches_no_hw:OK
    #27 perf_branches:OK
    Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED

On host without hardware counter support (VM):

    # ./test_progs -t perf_branches
    #27/1 perf_branches_hw:OK
    #27/2 perf_branches_no_hw:OK
    #27 perf_branches:OK
    Summary: 1/2 PASSED, 1 SKIPPED, 0 FAILED

Also sync tools/include/uapi/linux/bpf.h.

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200218030432.4600-3-dxu@dxuuu.xyz
2020-02-19 15:01:07 -08:00
Jakub Sitnicki
d1ba1204f2 selftests/bpf: Test unhashing kTLS socket after removing from map
When a TCP socket gets inserted into a sockmap, its sk_prot callbacks get
replaced with tcp_bpf callbacks built from regular tcp callbacks. If TLS
gets enabled on the same socket, sk_prot callbacks get replaced once again,
this time with kTLS callbacks built from tcp_bpf callbacks.

Now, we allow removing a socket from a sockmap that has kTLS enabled. After
removal, socket remains with kTLS configured. This is where things things
get tricky.

Since the socket has a set of sk_prot callbacks that are a mix of kTLS and
tcp_bpf callbacks, we need to restore just the tcp_bpf callbacks to the
original ones. At the moment, it comes down to the the unhash operation.

We had a regression recently because tcp_bpf callbacks were not cleared in
this particular scenario of removing a kTLS socket from a sockmap. It got
fixed in commit 4da6a196f9 ("bpf: Sockmap/tls, during free we may call
tcp_bpf_unhash() in loop").

Add a test that triggers the regression so that we don't reintroduce it in
the future.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200217121530.754315-4-jakub@cloudflare.com
2020-02-19 16:54:05 +01:00
Toke Høiland-Jørgensen
113e6b7e15 libbpf: Sanitise internal map names so they are not rejected by the kernel
The kernel only accepts map names with alphanumeric characters, underscores
and periods in their name. However, the auto-generated internal map names
used by libbpf takes their prefix from the user-supplied BPF object name,
which has no such restriction. This can lead to "Invalid argument" errors
when trying to load a BPF program using global variables.

Fix this by sanitising the map names, replacing any non-allowed characters
with underscores.

Fixes: d859900c4c ("bpf, libbpf: support global data/bss/rodata sections")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200217171701.215215-1-toke@redhat.com
2020-02-18 15:34:20 +01:00
Toke Høiland-Jørgensen
f25975f42f bpf, uapi: Remove text about bpf_redirect_map() giving higher performance
The performance of bpf_redirect() is now roughly the same as that of
bpf_redirect_map(). However, David Ahern pointed out that the header file
has not been updated to reflect this, and still says that a significant
performance increase is possible when using bpf_redirect_map(). Remove this
text from the bpf_redirect_map() description, and reword the description in
bpf_redirect() slightly. Also fix the 'Return' section of the
bpf_redirect_map() documentation.

Fixes: 1d233886dd ("xdp: Use bulking for non-map XDP_REDIRECT and consolidate code paths")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200218130334.29889-1-toke@redhat.com
2020-02-18 15:31:31 +01:00
Hangbin Liu
9b64208f74 selftests: forwarding: vxlan_bridge_1d: use more proper tos value
0x11 and 0x12 set the ECN bits based on RFC2474, it would be better to avoid
that. 0x14 and 0x18 would be better and works as well.

Reported-by: Petr Machata <petrm@mellanox.com>
Fixes: 4e867c9a50 ("selftests: forwarding: vxlan_bridge_1d: fix tos value")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 22:41:10 -08:00
Ido Schimmel
495c3da648 selftests: mlxsw: vxlan: Add test for error path
Test that when two VXLAN tunnels with conflicting configurations (i.e.,
different TTL) are enslaved to the same VLAN-aware bridge, then the
enslavement of a port to the bridge is denied.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 14:42:53 -08:00
Ido Schimmel
58ba0238e9 selftests: mlxsw: vxlan: Adjust test to recent changes
After recent changes, the VXLAN tunnel will be offloaded regardless if
any local ports are member in the FID or not. Adjust the test to make
sure the tunnel is offloaded in this case.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 14:42:53 -08:00
Ido Schimmel
6c4e61ff5f selftests: mlxsw: extack: Test creation of multiple VLAN-aware bridges
The driver supports a single VLAN-aware bridge. Test that the
enslavement of a port to the second VLAN-aware bridge fails with an
extack.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 14:42:53 -08:00
Ido Schimmel
bdc58bea0d selftests: mlxsw: extack: Test bridge creation with VXLAN
Test that creation of a bridge (both VLAN-aware and VLAN-unaware) fails
with an extack when a VXLAN device with an unsupported configuration is
already enslaved to it.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 14:42:53 -08:00
Ido Schimmel
745a7ea72d selftests: mlxsw: Remove deprecated test
The addition of a VLAN on a bridge slave prompts the driver to have the
local port in question join the FID corresponding to this VLAN.

Before recent changes, the operation of joining the FID would also mean
that the driver would enable VXLAN tunneling if a VXLAN device was also
member in the VLAN. In case the configuration of the VXLAN tunnel was
not supported, an extack error would be returned.

Since the operation of joining the FID no longer means that VXLAN
tunneling is potentially enabled, the test is no longer relevant. Remove
it.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 14:42:53 -08:00
Jason A. Donenfeld
04ddf1208f wireguard: selftests: reduce complexity and fix make races
This gives us fewer dependencies and shortens build time, fixes up some
hash checking race conditions, and also fixes missing directory creation
that caused issues on massively parallel builds.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:21:56 -08:00