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Add a kselftest that exercises the RDS getsockopt() paths converted to
the getsockopt_iter() / sockopt_t callback:
- RDS_RECVERR and SO_RDS_TRANSPORT, which return their int value through
copy_to_iter() and report the written length in opt->optlen.
- RDS_INFO_*, which obtains the userspace buffer pages with
iov_iter_extract_pages() (including a non-zero starting page offset)
and lets the info producers copy the snapshot in under a spinlock.
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260608-getsock_more-v3-1-706ecf2ea332@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Make the RDMA test return XFAIL rather than skip when RXE is not
available, since the RDMA datapath is not run in netdev CI.
Change the three RDMA-prerequisite checks in check_rdma_conf() and
check_rdma_conf_enabled() to exit with KSFT_XFAIL (2) and tag their
messages [XFAIL] instead of [SKIP].
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-5-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 92cc6708f4a2 ("selftests: rds: config: disable modules") set
CONFIG_MODULES=n since run.sh required this kconfig. But disabling
modules also forces every =m option to =n rather than =y, which can
silently drop unrelated features.
This patch removes CONFIG_MODULES=n from the rds selftest config and
updates the check_*conf_enabled() routines to accept a config as
either built-in (=y) or modular (=m). A new probe_module() function
is added to load the backing module when a component is set to be
modular (=m). config.sh no longer forces CONFIG_MODULES=n, so a user
who follows the SKIP message to run config.sh does not silently end
up with modules disabled again.
rds.ko itself is auto-loaded on socket creation, and rds_rdma.ko is
auto-loaded when SO_RDS_TRANSPORT is set with RDS_TRANS_IB, but the
TCP transport (rds_tcp.ko) is not auto-loaded on the bind path, so
the backing modules are loaded explicitly here.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The RDS selftests create AF_RDS sockets but never selects a transport,
so the transport is chosen implicitly based on network topology when
the socket is bound. If underlying connection establishment fails, RDS
can fall back to another transport (e.g. loopback) and the test still
passes, silently bypassing the intended datapath it is meant to
exercise.
Set SO_RDS_TRANSPORT to the proper RDS_TRANS_IB or RDS_TRANS_TCP before
they are bound, so the test fails loudly if the intended transport is
unavailable rather than passing on a different path.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch renames run.sh to rds_run.sh. This gives the test a
self-describing name that appears in the netdev CI dashboard.
Suggested-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-7.1-rc5).
No conflicts, adjacent changes:
drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
cc199cd1b912 ("net/mlx5e: Reduce branches in napi poll")
c326f9c68921 ("net/mlx5e: xsk: Fix unlocked writing to ICOSQ")
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
c6df9a65cbb0 ("net/mlx5: Skip disabled vports when setting max TX speed")
1fba57c91416 ("net/mlx5: Add VHCA_ID page management mode support")
net/mac80211/mlme.c
a6e6ccd5bd07 ("wifi: mac80211: consume only present negotiated TTLM maps")
49e62ec6eb06 ("wifi: mac80211: move frame RX handling to type files")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The run.sh script explicitly checks that CONFIG_MODULES is disabled.
By default, this config option is enabled. Explicitly disable it to be
able to run the RDS tests.
Note that writing '# CONFIG_(...) is not set' is usually recommended to
disable an option in the .config, but it looks like selftests usually
set 'CONFIG_(...)=n', which looks clearer.
Fixes: 0f5d68004780 ("selftests: rds: add tools/testing/selftests/net/rds/config")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260520-net-rds-config-modules-v1-1-2100df02fe9a@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds support for testing rds rdma over ROCE. A new
-r flag is added to config.sh which enables the required kernel
configs for rdma. We also add a -T flag to run.sh, which takes
a transport option, tcp or rdma. The rdma option will check to
ensure the proper configs have been enabled. The flag is then
passed to test.py, which will run the test over the specified
transport(s)
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-12-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds support for testing rds rdma over ROCE in test.py
A new -T flag is added, which takes a transport option, tcp or rdma.
A new setup_rdma() function is added that will configure rdma
interfaces and sockets for use in the test case.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-11-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds a teardown_tcp() helper that removes net0/net1.
The cmd calls here use fail=False so they can be called from
completed or partially-setup states on error. Also call
teardown_tcp() at the top of setup_tcp() so a previous
interrupted run does not leave net0/net1 lingering and break a
subsequent ip netns add. Register teardown_tcp() with atexit
before setup_tcp() is invoked.
Likewise, we can simpliy stop_pcaps() handling by registering it
with atexit instead of calling it from the signal handler.
atexit handlers run on any exit path - normal completion, raised
exception, and sys.exit() from the timeout signal handler. This
guarantees cleanup are called without further wrapping the test
body in a try/finally blocks.
atexit LIFO ordering keeps stop_pcaps before teardown_tcp so
tcpdumps are killed cleanly before their namespaces go away.
This is a preparatory cleanup for the upcoming ROCE patch which
will also register a teardown_rdma() alongside teardown_tcp()
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-10-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Sockets created by child processes in netns_socket may raise
exceptions that are currently not handled by the parent. If for
example a namespace didn't exist or the rds module didn't load. Because
these exceptions occur with in a child thread, the child thread exits,
but the parent does not check the return status.
Further, allowing the child processes to quietly raise exceptions
will cause problems later if the parent registers clean up functions
with atexit. Since the child processes inherit the parents handlers,
they may prematurely call the parents cleanup routines without the
parent being aware.
Fix this by all catching exceptions raised by the child processes.
Child errors surface as a non-zero exit status, which are then
properly raised in the parent process.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-9-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist the send/recv logic in test.py into a helper function,
snd_rcv_packets(). This is a preparatory refactoring for the
rds over ROCE series which can use the same function to run
the test over tcp, rdma, or both. No functional changes are
introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-8-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist the verify hashes logic in test.py into a helper function,
verify_hashes(). This is a preparatory refactoring for the rds over
ROCE series that helps modularize the send/recv logic. Breaking up the
logic now will help avoid large function pylint errors later. No
functional changes are introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-7-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist receive packet logic in test.py into a helper function,
recv_burst(). This is a preparatory refactoring for the rds over ROCE
series that helps modularize the send/recv logic. Breaking up the logic
now will help avoid large function pylint errors later. No functional
changes are introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-6-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist the send packet logic in test.py into a helper function,
send_burst(). This is a preparatory refactoring for the rds over ROCE
series that helps modularize the send/recv logic. Breaking up the logic
now will help avoid large function pylint errors later. No functional
changes are introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-5-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist the page info logic in test.py into a helper function,
check_info(). This is a preparatory refactoring for the rds over ROCE
series that helps modularize the send/recv logic. Breaking up the logic
now will help avoid large function pylint errors later. No functional
changes are introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Hoist the network configs in test.py into a tcp specific helper
function, setup_tcp(). This is a preparatory refactoring for the
rds over ROCE series which will add separate function for rdma
specific configs. No functional changes are introduced in this patch.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260518012443.2629206-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A race in stop_pcaps is possible if the test completes and then
times out while waiting for the tcpdump process to exit. The
signal handler may fire again and needlessly call stop_pcap a
second time. Fix this by disabling the alarm after normal
test completion.
Also if there are no tcpdump processes to wait on, stop_pcaps can
just exit. This avoids misleading prints when there are no procs
to collect dumps from.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260507233213.556182-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds the # prefix to info and warning prints in
the check_gcov* routines. Since these routines do not exit,
as the other check_* routines do, the output here should be
kept TAP compliant.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260507233213.556182-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since rds self tests no longer has a default folder, users must
specify a log collection folder if they want to collect logs.
Currently the log folder is deleted and recreated, but this can
be dangerous if the user exports RDS_LOG_DIR=/tmp or /var/log.
This patch corrects the clean up to delete only rds log artifacts
from the log folder, and further prefixes rds specific logs as rds*
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260507233213.556182-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch updates the rds selftests output to be TAP compliant.
Use ksft_pr() to mark debug output with a leading '# ' so that TAP
parsers treat it as commentary, and convert all informational print()
calls to use ksft_pr(). sys.exit(0) is changed to os._exit(0) to
avoid duplicate prints from the buffered TAP output. The console
output from the tcpdump subprocess is silenced, and the gcov console
output is redirected to a gcovr.log.
Finally adjust the exit path so that the hash check loop sets a
return code instead exiting directly. Then print the TAP results
and totals lines before exiting.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-11-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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debugfs is not mounted automatically in a virtme-ng guest, so the
gcov data copy from /sys/kernel/debug/gcov/ silently finds nothing
depending on whether debugfs is mounted by default on the host OS.
Fix this by mounting debugfs in run.sh before copying the gcda
files.
Finally when invoked through the kselftest runner, the working
directory is the test directory rather than the kernel source root.
gcovr defaults --root to the current working directory, which causes
it to filter out all coverage data for files under net/rds/ since
they are not under the test directory. Fix this by passing --root
to gcovr explicitly.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-10-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The timeout signal handler for the rds selftests currently just
exits when the time limit is exceeded, and forgets to stop the
network dumps. Fix this by hoisting the tcpdump terminate commands
into a helper function, and call it from the signal handler before
exiting
Bound proc.wait() with a timeout (and fall back to proc.kill())
so an unresponsive tcpdump cannot hang the timeout path itself.
We also pop() tcpdump_procs as we iterate, so stop_pcaps() is safe
to call from both the normal cleanup path and the signal handler,
since the second invocation simply has nothing to do
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-9-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch removes the initial tmp tcpdumps and instead saves
the pcaps directly to the logdir if it is set.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-8-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch modifies rds selftests to use the environment variable
SUDO_USER for tcpdumps if it is set. This is needed to avoid chown
operations on the vng 9pfs which is not supported. Passing a user
listed in sudoers avoids the tcpdump privilege drop which may
otherwise create empty pcaps
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-7-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch modifies the rds selftest to look for an env variable
RDS_LOG_DIR, and log all traces, pcaps and gcov collections to
the folder specified in RDS_LOG_DIR. If RDS_LOG_DIR is unset,
logs are not collected.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-6-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a -t flag to run.sh to optionally override the default
timeout. The --timeout flag is already supported in test.py,
so just add the shorthand -t flag
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-5-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch fixes a few pylint errors in test.py. Remove unused exception
variables from except blocks, and disable warnings for imports that cannot
appear at the start of the module. Also disable warnings for the
tcpdump processes. The suggestion to use a with block does not apply
here since the process needs to outlive the parent to collect the dumps.
Lastly add the module docstring at the top of the module.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The run.sh script does not have a -g flag. Update USAGE string with
correct flags. Also fix typo packet_duplcate -> packet_duplicate
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 400s time out was originally developed under a leaner
kernel config that booted much faster than a default config.
Boot up is included as part of the over all test runtime, as
well as any log collection done when the test is complete.
A slower config combined with the gcov enabled test means
we'll need more time to accommodate the boot up and log
collection. So, bump time out to 800s.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260504054143.4027538-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds a new -c flag to config.sh that enables callers
to specify the file path of the config they would like to update.
If no config is specified, the default will be the .config of the
current directory.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260320041834.2761069-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ksft CI runtime needs an rds specific config file to build a
minimal kernel with the right options enabled. This patch adds
an rds selftest config containing the required CONFIG_RDS* and
CONFIG_NET_* options.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260320041834.2761069-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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net/rds/test.py sees a segfault in tcpdump when executed through the
ksft runner.
[ 21.903713] tcpdump[1469]: segfault at 0 ip 000072100e99126d
sp 00007ffccf740fd0 error 4
[ 21.903721] in libc.so.6[16a26d,7798b149a000+188000]
[ 21.905074] in libc.so.6[16a26d,72100e84f000+188000] likely on
CPU 5 (core 5, socket 0)
[ 21.905084] Code: 00 0f 85 a0 00 00 00 48 83 c4 38 89 d8 5b 41 5c
41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 48 8b 05 91 8b 09 00 8b 4d ac
64 89 08 <41> 0f b6 07 83 e8 2b a8 fd 0f 84 54 ff ff ff 49 8b 36 4c 89
ff e8
[ 21.906760] likely on CPU 9 (core 9, socket 0)
[ 21.913469] Code: 00 0f 85 a0 00 00 00 48 83 c4 38 89 d8 5b 41 5c 41
5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 48 8b 05 91 8b 09 00 8b 4d ac 64 89
08 <41> 0f b6 07 83 e8 2b a8 fd 0f 84 54 ff ff ff 49 8b 36 4c 89 ff e8
The os.fork() call creates extra complexity because it forks the entire
process including the python interpreter. ip() then calls cmd() which
creates a subprocess.Popen. We can avoid the extra layering by simply
calling subprocess.Popen directly. Track the process handles directly
and terminate them at cleanup rather than relying on killall. Further
tcpdump's -Z flag attempts to change savefile ownership, which is not
supported by the 9p protocol. Fix this by writing pcap captures to
"/tmp" during the test and move them to the log directory after tcpdump
exits.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260308055835.1338257-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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rds/run.sh sets a timer of 400s when calling test.py. However when
tests are run through ksft, a default 45s timer is applied. Fix this
by adding a ksft timeout in tools/testing/selftests/net/rds/settings
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260308055835.1338257-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tidy up all exiting pylint errors in test.py. No functional
changes are introduced in this patch
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260308055835.1338257-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We get a significant number of conflicts between net and net-next
because of selftests Makefile changes. People tend to append new
test cases at the end of the Makefile when there's no clear sort
order. Sort all networking selftests Makefiles, use the following
format:
VAR_NAME := \
entry1 \
entry2 \
entry3 \
# end of VAR_NAME
Some Makefiles are already pretty close to this.
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20251003210127.1021918-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The test.py should not be run separately. It should be run via run.sh,
which will do some sanity checks first. Move the test.py from TEST_PROGS
to TEST_FILES.
Reported-by: Maximilian Heyne <mheyne@amazon.de>
Closes: https://lore.kernel.org/netdev/20241122150129.GB18887@dev-dsk-mheyne-1b-55676e6a.eu-west-1.amazon.com
Fixes: 3ade6ce1255e ("selftests: rds: add testing infrastructure")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Link: https://patch.msgid.link/20241124073243.847932-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This fix solves this error, when calling kselftest with targets "net/rds":
The error was found by running tests manually with the command:
make kselftest TARGETS="net/rds"
The patch also specifies to import ip() function from the utils module.
Signed-off-by: Alessandro Zanni <alessandro.zanni87@gmail.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Link: https://patch.msgid.link/20241010194421.48198-1-alessandro.zanni87@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The generated include.sh should be ignored by git. Create a new
gitignore and add the file to the list.
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241005-net-selftests-gitignore-v2-3-3a0b2876394a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The include.sh file is generated when building the net/rds selftests,
but there is no rule to delete it with the clean target. Add the file to
EXTRA_CLEAN in order to remove it when required.
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241005-net-selftests-gitignore-v2-2-3a0b2876394a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The include.sh file is generated for inclusion and should not be executable.
Otherwise, it will be added to kselftest-list.txt. Additionally, add the
executable bit for test.py at the same time to ensure proper functionality.
Fixes: 3ade6ce1255e ("selftests: rds: add testing infrastructure")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20240927041349.81216-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This adds some basic self-testing infrastructure for RDS-TCP.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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