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The current test just sends "hello\nworld" and verifies that is the
string received on the RX side. That is fine, but improve the test a bit
by sending 1K data. The test should be improved further to send more
data, but for now this should be a welcome improvement.
The test will send a repeating pattern of 0x01, 0x02, ... 0x06. The
ncdevmem `-v 7` flag will verify this pattern. ncdevmem will provide
useful debugging info when the test fails, such as the frags received
and verified fine, and which frag exactly failed, what was the expected
byte pattern, and what is the actual byte pattern received. All this
debug information will be useful when the test fails.
Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250523230524.1107879-8-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ncdevmem supports drivers that are limited to either 3-tuple or 5-tuple
FS support, but the ksft is currently 3-tuple only. Support drivers that
have 5-tuple FS supported by adding a ksft arg.
Signed-off-by: Mina Almasry <almasrymina@google.com>
fix 5-tuple
fix 5-tuple
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250523230524.1107879-7-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This exit_wait seems necessary to make the rx side test pass for me.
I think this is just missed from the original test add patch. Add it now.
Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250523230524.1107879-6-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ncdevmem supports both ipv4 and ipv6, but the ksft is currently
ipv6-only. Propagate the ipv4 support to the ksft, so that folks that
are limited to these networks can also test.
Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250523230524.1107879-5-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use prime 3 for length to make offset slowly drift away.
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Acked-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for devmem TX in ncdevmem.
This is a combination of the ncdevmem from the devmem TCP series RFCv1
which included the TX path, and work by Stan to include the netlink API
and refactored on top of his generic memory_provider support.
Signed-off-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250508004830.4100853-10-almasrymina@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Looks like more and more tests want to iterate over IP version,
run the same test over ipv4 and ipv6. The current naming of
members in the env class makes it a bit awkward, we have
separate members for ipv4 and ipv6 parameters.
Store the parameters inside dicts, so that tests can easily
index them with ip version.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250218225426.77726-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Only RX side for now and small message to test the setup.
In the future, we can extend it to TX side and to testing
both sides with a couple of megs of data.
make \
-C tools/testing/selftests \
TARGETS="drivers/hw/net" \
install INSTALL_PATH=~/tmp/ksft
scp ~/tmp/ksft ${HOST}:
scp ~/tmp/ksft ${PEER}:
cfg+="NETIF=${DEV}\n"
cfg+="LOCAL_V6=${HOST_IP}\n"
cfg+="REMOTE_V6=${PEER_IP}\n"
cfg+="REMOTE_TYPE=ssh\n"
cfg+="REMOTE_ARGS=root@${PEER}\n"
echo -e "$cfg" | ssh root@${HOST} "cat > ksft/drivers/net/net.config"
ssh root@${HOST} "cd ksft && ./run_kselftest.sh -t drivers/net:devmem.py"
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20241107181211.3934153-13-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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