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2021-08-16selftest/bpf: Add new tests in sockmap for unix stream to tcp.Jiang Wang1-4/+12
Add two new test cases in sockmap tests, where unix stream is redirected to tcp and vice versa. Signed-off-by: Jiang Wang <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Reviewed-by: Cong Wang <[email protected]> Acked-by: John Fastabend <[email protected]> Acked-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-16selftest/bpf: Change udp to inet in some function namesJiang Wang1-13/+17
This is to prepare for adding new unix stream tests. Mostly renames, also pass the socket types as an argument. Signed-off-by: Jiang Wang <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Reviewed-by: Cong Wang <[email protected]> Acked-by: John Fastabend <[email protected]> Acked-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-16selftest/bpf: Add tests for sockmap with unix stream type.Jiang Wang1-0/+2
Add two tests for unix stream to unix stream redirection in sockmap tests. Signed-off-by: Jiang Wang <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Reviewed-by: Cong Wang <[email protected]> Acked-by: Jakub Sitnicki <[email protected]> Acked-by: John Fastabend <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-16selftests/bpf: Test btf__load_vmlinux_btf/btf__load_module_btf APIsHengqi Chen1-0/+34
Add test for btf__load_vmlinux_btf/btf__load_module_btf APIs. The test loads bpf_testmod module BTF and check existence of a symbol which is known to exist. Signed-off-by: Hengqi Chen <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-17selftests/bpf: Add ref_ctr_offset selftestsAndrii Nakryiko3-11/+50
Extend attach_probe selftests to specify ref_ctr_offset for uprobe/uretprobe and validate that its value is incremented from zero. Turns out that once uprobe is attached with ref_ctr_offset, uretprobe for the same location/function *has* to use ref_ctr_offset as well, otherwise perf_event_open() fails with -EINVAL. So this test uses ref_ctr_offset for both uprobe and uretprobe, even though for the purpose of test uprobe would be enough. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-17selftests/bpf: Add bpf_cookie selftests for high-level APIsAndrii Nakryiko2-0/+339
Add selftest with few subtests testing proper bpf_cookie usage. Kprobe and uprobe subtests are pretty straightforward and just validate that the same BPF program attached with different bpf_cookie will be triggered with those different bpf_cookie values. Tracepoint subtest is a bit more interesting, as it is the only perf_event-based BPF hook that shares bpf_prog_array between multiple perf_events internally. This means that the same BPF program can't be attached to the same tracepoint multiple times. So we have 3 identical copies. This arrangement allows to test bpf_prog_array_copy()'s handling of bpf_prog_array list manipulation logic when programs are attached and detached. The test validates that bpf_cookie isn't mixed up and isn't lost during such list manipulations. Perf_event subtest validates that two BPF links can be created against the same perf_event (but not at the same time, only one BPF program can be attached to perf_event itself), and that for each we can specify different bpf_cookie value. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-17selftests/bpf: Extract uprobe-related helpers into trace_helpers.{c,h}Andrii Nakryiko3-60/+70
Extract two helpers used for working with uprobes into trace_helpers.{c,h} to be re-used between multiple uprobe-using selftests. Also rename get_offset() into more appropriate get_uprobe_offset(). Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-17selftests/bpf: Test low-level perf BPF link APIAndrii Nakryiko2-0/+105
Add tests utilizing low-level bpf_link_create() API to create perf BPF link. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-16bootconfig/tracing/ktest: Update ktest example for boot-time tracingMasami Hiramatsu2-6/+16
Update ktest example for the boot-time tracing with histogram options. Note that since the histogram option uses "trace()" action instead of "EVENT()", this updates the matching pattern too. Link: https://lkml.kernel.org/r/162856130208.203126.4458319094852152589.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-08-15selftest/bpf: Extend the bpf_snprintf() test for "%c".Kuniyuki Iwashima2-4/+6
This patch adds various "positive" patterns for "%c" and two "negative" patterns for wide character. Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-15selftest/bpf: Implement sample UNIX domain socket iterator program.Kuniyuki Iwashima4-0/+108
The iterator can output almost the same result compared to /proc/net/unix. The header line is aligned, and the Inode column uses "%8lu" because "%5lu" can be easily overflown. # cat /sys/fs/bpf/unix Num RefCount Protocol Flags Type St Inode Path ffff963c06689800: 00000002 00000000 00010000 0001 01 18697 private/defer ffff963c7c979c00: 00000002 00000000 00000000 0001 01 598245 @Hello@World@ # cat /proc/net/unix Num RefCount Protocol Flags Type St Inode Path ffff963c06689800: 00000002 00000000 00010000 0001 01 18697 private/defer ffff963c7c979c00: 00000002 00000000 00000000 0001 01 598245 @Hello@World@ Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-14Merge tag 'libnvdimm-fixes-5.14-rc6' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "A couple of fixes for long standing bugs, a warning fixup, and some miscellaneous dax cleanups. The bugs were recently found due to new platforms looking to use the ACPI NFIT "virtual" device definition, and new error injection capabilities to trigger error responses to label area requests. Ira's cleanups have been long pending, I neglected to send them earlier, and see no harm in including them now. This has all appeared in -next with no reported issues. Summary: - Fix support for NFIT "virtual" ranges (BIOS-defined memory disks) - Fix recovery from failed label storage areas on NVDIMM devices - Miscellaneous cleanups from Ira's investigation of dax_direct_access paths preparing for stray-write protection" * tag 'libnvdimm-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: tools/testing/nvdimm: Fix missing 'fallthrough' warning libnvdimm/region: Fix label activation vs errors ACPI: NFIT: Fix support for virtual SPA ranges dax: Ensure errno is returned from dax_direct_access fs/dax: Clarify nr_pages to dax_direct_access() fs/fuse: Remove unneeded kaddr parameter
2021-08-15powerpc/bug: Provide better flexibility to WARN_ON/__WARN_FLAGS() with asm gotoChristophe Leroy1-0/+1
Using asm goto in __WARN_FLAGS() and WARN_ON() allows more flexibility to GCC. For that add an entry to the exception table so that program_check_exception() knowns where to resume execution after a WARNING. Here are two exemples. The first one is done on PPC32 (which benefits from the previous patch), the second is on PPC64. unsigned long test(struct pt_regs *regs) { int ret; WARN_ON(regs->msr & MSR_PR); return regs->gpr[3]; } unsigned long test9w(unsigned long a, unsigned long b) { if (WARN_ON(!b)) return 0; return a / b; } Before the patch: 000003a8 <test>: 3a8: 81 23 00 84 lwz r9,132(r3) 3ac: 71 29 40 00 andi. r9,r9,16384 3b0: 40 82 00 0c bne 3bc <test+0x14> 3b4: 80 63 00 0c lwz r3,12(r3) 3b8: 4e 80 00 20 blr 3bc: 0f e0 00 00 twui r0,0 3c0: 80 63 00 0c lwz r3,12(r3) 3c4: 4e 80 00 20 blr 0000000000000bf0 <.test9w>: bf0: 7c 89 00 74 cntlzd r9,r4 bf4: 79 29 d1 82 rldicl r9,r9,58,6 bf8: 0b 09 00 00 tdnei r9,0 bfc: 2c 24 00 00 cmpdi r4,0 c00: 41 82 00 0c beq c0c <.test9w+0x1c> c04: 7c 63 23 92 divdu r3,r3,r4 c08: 4e 80 00 20 blr c0c: 38 60 00 00 li r3,0 c10: 4e 80 00 20 blr After the patch: 000003a8 <test>: 3a8: 81 23 00 84 lwz r9,132(r3) 3ac: 71 29 40 00 andi. r9,r9,16384 3b0: 40 82 00 0c bne 3bc <test+0x14> 3b4: 80 63 00 0c lwz r3,12(r3) 3b8: 4e 80 00 20 blr 3bc: 0f e0 00 00 twui r0,0 0000000000000c50 <.test9w>: c50: 7c 89 00 74 cntlzd r9,r4 c54: 79 29 d1 82 rldicl r9,r9,58,6 c58: 0b 09 00 00 tdnei r9,0 c5c: 7c 63 23 92 divdu r3,r3,r4 c60: 4e 80 00 20 blr c70: 38 60 00 00 li r3,0 c74: 4e 80 00 20 blr In the first exemple, we see GCC doesn't need to duplicate what happens after the trap. In the second exemple, we see that GCC doesn't need to emit a test and a branch in the likely path in addition to the trap. We've got some WARN_ON() in .softirqentry.text section so it needs to be added in the OTHER_TEXT_SECTIONS in modpost.c Signed-off-by: Christophe Leroy <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/389962b1b702e3c78d169e59bcfac56282889173.1618331882.git.christophe.leroy@csgroup.eu
2021-08-14selftests: mptcp: add testcase for active-backPaolo Abeni1-31/+187
Add more test-case for link failures scenario, including recovery from link failure using only backup subflows and bi-directional transfer. Additionally explicitly check for stale count Co-developed-by: Geliang Tang <[email protected]> Signed-off-by: Geliang Tang <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-08-13selftests/bpf: Verify bpf_get_netns_cookie in BPF_PROG_TYPE_CGROUP_SOCKOPTStanislav Fomichev1-0/+16
Add extra calls to sockopt_sk.c. Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Martin KaFai Lau <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-13Merge tag 'linux-kselftest-fixes-5.14-rc6' of ↵Linus Torvalds1-20/+21
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fix from Shuah Khan: "A single patch to sgx test to fix Q1 and Q2 calculation" * tag 'linux-kselftest-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c
2021-08-13selftests/bpf: Fix test_core_autosize on big-endian machinesIlya Leoshkevich1-5/+15
The "probed" part of test_core_autosize copies an integer using bpf_core_read() into an integer of a potentially different size. On big-endian machines a destination offset is required for this to produce a sensible result. Fixes: 888d83b961f6 ("selftests/bpf: Validate libbpf's auto-sizing of LD/ST/STX instructions") Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-13libbpf: Support weak typed ksyms.Hao Luo2-0/+87
Currently weak typeless ksyms have default value zero, when they don't exist in the kernel. However, weak typed ksyms are rejected by libbpf if they can not be resolved. This means that if a bpf object contains the declaration of a nonexistent weak typed ksym, it will be rejected even if there is no program that references the symbol. Nonexistent weak typed ksyms can also default to zero just like typeless ones. This allows programs that access weak typed ksyms to be accepted by verifier, if the accesses are guarded. For example, extern const int bpf_link_fops3 __ksym __weak; /* then in BPF program */ if (&bpf_link_fops3) { /* use bpf_link_fops3 */ } If actual use of nonexistent typed ksym is not guarded properly, verifier would see that register is not PTR_TO_BTF_ID and wouldn't allow to use it for direct memory reads or passing it to BPF helpers. Signed-off-by: Hao Luo <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-13selftests/bpf: Fix running of XDP bonding testsJussi Maki1-3/+3
An "innocent" cleanup in the last version of the XDP bonding patchset moved the "test__start_subtest" calls to the test main function, but I forgot to reverse the condition, which lead to all tests being skipped. Fix it. Fixes: 6aab1c81b98a ("selftests/bpf: Add tests for XDP bonding") Signed-off-by: Jussi Maki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-13kunit: Print test statistics on failureDavid Gow1-1/+1
When a number of tests fail, it can be useful to get higher-level statistics of how many tests are failing (or how many parameters are failing in parameterised tests), and in what cases or suites. This is already done by some non-KUnit tests, so add support for automatically generating these for KUnit tests. This change adds a 'kunit.stats_enabled' switch which has three values: - 0: No stats are printed (current behaviour) - 1: Stats are printed only for tests/suites with more than one subtest (new default) - 2: Always print test statistics For parameterised tests, the summary line looks as follows: " # inode_test_xtimestamp_decoding: pass:16 fail:0 skip:0 total:16" For test suites, there are two lines looking like this: "# ext4_inode_test: pass:1 fail:0 skip:0 total:1" "# Totals: pass:16 fail:0 skip:0 total:16" The first line gives the number of direct subtests, the second "Totals" line is the accumulated sum of all tests and test parameters. This format is based on the one used by kselftest[1]. [1]: https://elixir.bootlin.com/linux/latest/source/tools/testing/selftests/kselftest.h#L109 Signed-off-by: David Gow <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-08-13kunit: tool: make --raw_output support only showing kunit outputDaniel Latypov3-9/+24
--raw_output is nice, but it would be nicer if could show only output after KUnit tests have started. So change the flag to allow specifying a string ('kunit'). Make it so `--raw_output` alone will default to `--raw_output=all` and have the same original behavior. Drop the small kunit_parser.raw_output() function since it feels wrong to put it in "kunit_parser.py" when the point of it is to not parse anything. E.g. $ ./tools/testing/kunit/kunit.py run --raw_output=kunit ... [15:24:07] Starting KUnit Kernel ... TAP version 14 1..1 # Subtest: example 1..3 # example_simple_test: initializing ok 1 - example_simple_test # example_skip_test: initializing # example_skip_test: You should not see a line below. ok 2 - example_skip_test # SKIP this test should be skipped # example_mark_skipped_test: initializing # example_mark_skipped_test: You should see a line below. # example_mark_skipped_test: You should see this line. ok 3 - example_mark_skipped_test # SKIP this test should be skipped ok 1 - example [15:24:10] Elapsed time: 6.487s total, 0.001s configuring, 3.510s building, 0.000s running Signed-off-by: Daniel Latypov <[email protected]> Reviewed-by: David Gow <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-08-13kunit: tool: add --kernel_args to allow setting module paramsDaniel Latypov2-10/+26
kunit.py currently does not make it possible for users to specify module parameters (/kernel arguments more generally) unless one directly tweaks the kunit.py code itself. This hasn't mattered much so far, but this would make it easier to port existing tests that expose module parameters over to KUnit and/or let current KUnit tests take advantage of them. Tested using an kunit internal parameter: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit \ --kernel_args=kunit.filter_glob=kunit_status ... Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. Signed-off-by: Daniel Latypov <[email protected]> Reviewed-by: David Gow <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-08-13selftests, bpf: Test that dead ldx_w insns are acceptedIlya Leoshkevich1-0/+12
Prevent regressions related to zero-extension metadata handling during dead code sanitization. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-11tools/testing/nvdimm: Fix missing 'fallthrough' warningDan Williams1-1/+1
Use "fallthrough;" to address: tools/testing/nvdimm/test/nfit.c: In function ‘nd_intel_test_finish_query’: tools/testing/nvdimm/test/nfit.c:436:37: warning: this statement may fall through [-Wimplicit-fallthrough=] 436 | fw->missed_activate = false; | ~~~~~~~~~~~~~~~~~~~~^~~~~~~ tools/testing/nvdimm/test/nfit.c:438:9: note: here 438 | case FW_STATE_UPDATED: | ^~~~ Reviewed-by: Jeff Moyer <[email protected]> Link: https://lore.kernel.org/r/162767522046.3313209.14767278726893995797.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <[email protected]>
2021-08-10Merge branch 'kvm-vmx-secctl' into HEADPaolo Bonzini3-5/+43
Merge common topic branch for 5.14-rc6 and 5.15 merge window.
2021-08-10Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski13-175/+628
Daniel Borkmann says: ==================== bpf-next 2021-08-10 We've added 31 non-merge commits during the last 8 day(s) which contain a total of 28 files changed, 3644 insertions(+), 519 deletions(-). 1) Native XDP support for bonding driver & related BPF selftests, from Jussi Maki. 2) Large batch of new BPF JIT tests for test_bpf.ko that came out as a result from 32-bit MIPS JIT development, from Johan Almbladh. 3) Rewrite of netcnt BPF selftest and merge into test_progs, from Stanislav Fomichev. 4) Fix XDP bpf_prog_test_run infra after net to net-next merge, from Andrii Nakryiko. 5) Follow-up fix in unix_bpf_update_proto() to enforce socket type, from Cong Wang. 6) Fix bpf-iter-tcp4 selftest to print the correct dest IP, from Jose Blanquicet. 7) Various misc BPF XDP sample improvements, from Niklas Söderlund, Matthew Cover, and Muhammad Falak R Wani. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (31 commits) bpf, tests: Add tail call test suite bpf, tests: Add tests for BPF_CMPXCHG bpf, tests: Add tests for atomic operations bpf, tests: Add test for 32-bit context pointer argument passing bpf, tests: Add branch conversion JIT test bpf, tests: Add word-order tests for load/store of double words bpf, tests: Add tests for ALU operations implemented with function calls bpf, tests: Add more ALU64 BPF_MUL tests bpf, tests: Add more BPF_LSH/RSH/ARSH tests for ALU64 bpf, tests: Add more ALU32 tests for BPF_LSH/RSH/ARSH bpf, tests: Add more tests of ALU32 and ALU64 bitwise operations bpf, tests: Fix typos in test case descriptions bpf, tests: Add BPF_MOV tests for zero and sign extension bpf, tests: Add BPF_JMP32 test cases samples, bpf: Add an explict comment to handle nested vlan tagging. selftests/bpf: Add tests for XDP bonding selftests/bpf: Fix xdp_tx.c prog section name net, core: Allow netdev_lower_get_next_private_rcu in bh context bpf, devmap: Exclude XDP broadcast to master device net, bonding: Add XDP support to the bonding driver ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2021-08-09selftests/bpf: Add tests for XDP bondingJussi Maki1-0/+520
Add a test suite to test XDP bonding implementation over a pair of veth devices. Signed-off-by: Jussi Maki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-09selftests/bpf: Fix xdp_tx.c prog section nameJussi Maki2-2/+2
The program type cannot be deduced from 'tx' which causes an invalid argument error when trying to load xdp_tx.o using the skeleton. Rename the section name to "xdp" so that libbpf can deduce the type. Signed-off-by: Jussi Maki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-09Merge 5.14-rc5 into driver-core-nextGreg Kroah-Hartman11-9/+870
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-08-09Merge 5.14-rc5 into char-misc-nextGreg Kroah-Hartman11-9/+870
We need the fixes in here as well, and resolves some merge issues with the mhi codebase. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-08-06selftests/bpf: Rename reference_tracking BPF programsAndrii Nakryiko2-9/+9
BPF programs for reference_tracking selftest use "fail_" prefix to notify that they are expected to fail. This is really confusing and inconvenient when trying to grep through test_progs output to find *actually* failed tests. So rename the prefix from "fail_" to "err_". Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-06selftests/bpf: Fix bpf-iter-tcp4 test to print correctly the dest IPJose Blanquicet1-1/+1
Currently, this test is incorrectly printing the destination port in place of the destination IP. Fixes: 2767c97765cb ("selftests/bpf: Implement sample tcp/tcp6 bpf_iter programs") Signed-off-by: Jose Blanquicet <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-06KVM: selftests: Move vcpu_args_set into perf_test_utilDavid Matlack5-5/+2
perf_test_util is used to set up KVM selftests where vCPUs touch a region of memory. The guest code is implemented in perf_test_util.c (not the calling selftests). The guest code requires a 1 parameter, the vcpuid, which has to be set by calling vcpu_args_set(vm, vcpu_id, 1, vcpu_id). Today all of the selftests that use perf_test_util are making this call. Instead, perf_test_util should just do it. This will save some code but more importantly prevents mistakes since totally non-obvious that this needs to be called and failing to do so results in vCPUs not accessing the right regions of memory. Signed-off-by: David Matlack <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-08-06KVM: selftests: Support multiple slots in dirty_log_perf_testDavid Matlack6-20/+84
Introduce a new option to dirty_log_perf_test: -x number_of_slots. This causes the test to attempt to split the region of memory into the given number of slots. If the region cannot be evenly divided, the test will fail. This allows testing with more than one slot and therefore measure how performance scales with the number of memslots. Signed-off-by: David Matlack <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-08-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski4-7/+206
Build failure in drivers/net/wwan/mhi_wwan_mbim.c: add missing parameter (0, assuming we don't want buffer pre-alloc). Conflict in drivers/net/dsa/sja1105/sja1105_main.c between: 589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too") 0fac6aa098ed ("net: dsa: sja1105: delete the best_effort_vlan_filtering mode") Follow the instructions from the commit message of the former commit - removed the if conditions. When looking at commit 589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too") note that the mask_iotag fields get removed by the following patch. Signed-off-by: Jakub Kicinski <[email protected]>
2021-08-05Merge tag 'net-5.14-rc5' of ↵Linus Torvalds1-2/+163
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from ipsec. Current release - regressions: - sched: taprio: fix init procedure to avoid inf loop when dumping - sctp: move the active_key update after sh_keys is added Current release - new code bugs: - sparx5: fix build with old GCC & bitmask on 32-bit targets Previous releases - regressions: - xfrm: redo the PREEMPT_RT RCU vs hash_resize_mutex deadlock fix - xfrm: fixes for the compat netlink attribute translator - phy: micrel: Fix detection of ksz87xx switch Previous releases - always broken: - gro: set inner transport header offset in tcp/udp GRO hook to avoid crashes when such packets reach GSO - vsock: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST, as required by spec - dsa: sja1105: fix static FDB entries on SJA1105P/Q/R/S and SJA1110 - bridge: validate the NUD_PERMANENT bit when adding an extern_learn FDB entry - usb: lan78xx: don't modify phy_device state concurrently - usb: pegasus: check for errors of IO routines" * tag 'net-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (48 commits) net: vxge: fix use-after-free in vxge_device_unregister net: fec: fix use-after-free in fec_drv_remove net: pegasus: fix uninit-value in get_interrupt_interval net: ethernet: ti: am65-cpsw: fix crash in am65_cpsw_port_offload_fwd_mark_update() bnx2x: fix an error code in bnx2x_nic_load() net: wwan: iosm: fix recursive lock acquire in unregister net: wwan: iosm: correct data protocol mask bit net: wwan: iosm: endianness type correction net: wwan: iosm: fix lkp buildbot warning net: usb: lan78xx: don't modify phy_device state concurrently docs: networking: netdevsim rules net: usb: pegasus: Remove the changelog and DRIVER_VERSION. net: usb: pegasus: Check the return value of get_geristers() and friends; net/prestera: Fix devlink groups leakage in error flow net: sched: fix lockdep_set_class() typo error for sch->seqlock net: dsa: qca: ar9331: reorder MDIO write sequence VSOCK: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST mptcp: drop unused rcu member in mptcp_pm_addr_entry net: ipv6: fix returned variable type in ip6_skb_dst_mtu nfp: update ethtool reporting of pauseframe control ...
2021-08-05Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds3-5/+43
Pull kvm fixes from Paolo Bonzini: "Mostly bugfixes; plus, support for XMM arguments to Hyper-V hypercalls now obeys KVM_CAP_HYPERV_ENFORCE_CPUID. Both the XMM arguments feature and KVM_CAP_HYPERV_ENFORCE_CPUID are new in 5.14, and each did not know of the other" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86/mmu: Fix per-cpu counter corruption on 32-bit builds KVM: selftests: fix hyperv_clock test KVM: SVM: improve the code readability for ASID management KVM: SVM: Fix off-by-one indexing when nullifying last used SEV VMCB KVM: Do not leak memory for duplicate debugfs directories KVM: selftests: Test access to XMM fast hypercalls KVM: x86: hyper-v: Check if guest is allowed to use XMM registers for hypercall input KVM: x86: Introduce trace_kvm_hv_hypercall_done() KVM: x86: hyper-v: Check access to hypercall before reading XMM registers KVM: x86: accept userspace interrupt only if no event is injected
2021-08-05selftests/net: toeplitz testCoco Li4-0/+813
To verify that this hash implements the Toeplitz hash function. Additionally, provide a script toeplitz.sh to run the test in loopback mode on a networking device of choice (see setup_loopback.sh). Since the script modifies the NIC setup, it will not be run by selftests automatically. Tested: ./toeplitz.sh -i eth0 -irq_prefix <eth0_pattern> -t -6 carrier ready rxq 0: cpu 14 rxq 1: cpu 20 rxq 2: cpu 17 rxq 3: cpu 23 cpu 14: rx_hash 0x69103ebc [saddr fda8::2 daddr fda8::1 sport 58938 dport 8000] OK rxq 0 (cpu 14) ... cpu 20: rx_hash 0x257118b9 [saddr fda8::2 daddr fda8::1 sport 59258 dport 8000] OK rxq 1 (cpu 20) count: pass=111 nohash=0 fail=0 Test Succeeded! Signed-off-by: Coco Li <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-08-05selftests/net: GRO coalesce testCoco Li4-0/+1306
Implement a GRO testsuite that expects Linux kernel GRO behavior. All tests pass with the kernel software GRO stack. Run against a device with hardware GRO to verify that it matches the software stack. gro.c generates packets and sends them out through a packet socket. The receiver in gro.c (run separately) receives the packets on a packet socket, filters them by destination ports using BPF and checks the packet geometry to see whether GRO was applied. gro.sh provides a wrapper to run the gro.c in NIC loopback mode. It is not included in continuous testing because it modifies network configuration around a physical NIC: gro.sh sets the NIC in loopback mode, creates macvlan devices on the physical device in separate namespaces, and sends traffic generated by gro.c between the two namespaces to observe coalescing behavior. GRO coalescing is time sensitive. Some tests may prove flaky on some hardware. Note that this test suite tests for software GRO unless hardware GRO is enabled (ethtool -K $DEV rx-gro-hw on). To test, run ./gro.sh. The wrapper will output success or failed test names, and generate log.txt and stderr. Sample log.txt result: ... pure data packet of same size: Test succeeded large data packets followed by a smaller one: Test succeeded small data packets followed by a larger one: Test succeeded ... Sample stderr result: ... carrier ready running test ipv4 data Expected {200 }, Total 1 packets Received {200 }, Total 1 packets. ... Signed-off-by: Coco Li <[email protected]> Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-08-04selftests/bpf: Move netcnt test under test_progsStanislav Fomichev7-163/+96
Rewrite to skel and ASSERT macros as well while we are at it. v3: - replace -f with -A to make it work with busybox ping. -A is available on both busybox and iputils, from the man page: On networks with low RTT this mode is essentially equivalent to flood mode. v2: - don't check result of bpf_map__fd (Yonghong Song) - remove from .gitignore (Andrii Nakryiko) - move ping_command into network_helpers (Andrii Nakryiko) - remove assert() (Andrii Nakryiko) Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-08-04KVM: selftests: fix hyperv_clock testMaxim Levitsky1-1/+1
The test was mistakenly using addr_gpa2hva on a gva and that happened to work accidentally. Commit 106a2e766eae ("KVM: selftests: Lower the min virtual address for misc page allocations") revealed this bug. Fixes: 2c7f76b4c42b ("selftests: kvm: Add basic Hyper-V clocksources tests", 2021-03-18) Signed-off-by: Maxim Levitsky <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-08-04tc-testing: Add control-plane selftests for sch_mqPeilin Ye2-0/+138
Recently we added multi-queue support to netdevsim in commit d4861fc6be58 ("netdevsim: Add multi-queue support"); add a few control-plane selftests for sch_mq using this new feature. Use nsPlugin.py to avoid network interface name collisions. Reviewed-by: Cong Wang <[email protected]> Signed-off-by: Peilin Ye <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-08-04Merge branch 'master' of ↵David S. Miller1-2/+163
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2021-08-04 1) Fix a sysbot reported memory leak in xfrm_user_rcv_msg. From Pavel Skripkin. 2) Revert "xfrm: policy: Read seqcount outside of rcu-read side in xfrm_policy_lookup_bytype". This commit tried to fix a lockin bug, but only cured some of the symptoms. A proper fix is applied on top of this revert. 3) Fix a locking bug on xfrm state hash resize. A recent change on sequence counters accidentally repaced a spinlock by a mutex. Fix from Frederic Weisbecker. 4) Fix possible user-memory-access in xfrm_user_rcv_msg_compat(). From Dmitry Safonov. 5) Add initialiation sefltest fot xfrm_spdattr_type_t. From Dmitry Safonov. ==================== Signed-off-by: David S. Miller <[email protected]>
2021-08-04af_unix: Add OOB supportRao Shoaib3-0/+443
This patch adds OOB support for AF_UNIX sockets. The semantics is same as TCP. The last byte of a message with the OOB flag is treated as the OOB byte. The byte is separated into a skb and a pointer to the skb is stored in unix_sock. The pointer is used to enforce OOB semantics. Signed-off-by: Rao Shoaib <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-08-03kselftest/arm64: Add a TODO list for floating point testsMark Brown1-0/+4
Write down some ideas for additional coverage for floating point in case someone feels inspired to look into them. Signed-off-by: Mark Brown <[email protected]> Reviewed-by: Dave Martin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2021-08-03kselftest/arm64: Add tests for SVE vector configurationMark Brown3-1/+596
We provide interfaces for configuring the SVE vector length seen by processes using prctl and also via /proc for configuring the default values. Provide tests that exercise all these interfaces and verify that they take effect as expected, though at present no test fully enumerates all the possible vector lengths. A subset of this is already tested via sve-probe-vls but the /proc interfaces are not currently covered at all. In preparation for the forthcoming support for SME, the Scalable Matrix Extension, which has separately but similarly configured vector lengths which we expect to offer similar userspace interfaces for, all the actual files and prctls used are parameterised and we don't validate that the architectural minimum vector length is the minimum we see. Signed-off-by: Mark Brown <[email protected]> Reviewed-by: Dave Martin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2021-08-03kselftest/arm64: Validate vector lengths are set in sve-probe-vlsMark Brown2-1/+6
Currently sve-probe-vls does not verify that the vector lengths reported by the prctl() interface are actually what is reported by the architecture, use the rdvl_sve() helper to validate this. Signed-off-by: Mark Brown <[email protected]> Reviewed-by: Dave Martin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2021-08-03kselftest/arm64: Provide a helper binary and "library" for SVE RDVLMark Brown5-1/+38
SVE provides an instruction RDVL which reports the currently configured vector length. In order to validate that our vector length configuration interfaces are working correctly without having to build the C code for our test programs with SVE enabled provide a trivial assembly library with a C callable function that executes RDVL. Since these interfaces also control behaviour on exec*() provide a trivial wrapper program which reports the currently configured vector length on stdout, tests can use this to verify that behaviour on exec*() is as expected. In preparation for providing similar helper functionality for SME, the Scalable Matrix Extension, which allows separately configured vector lengths to be read back both the assembler function and wrapper binary have SVE included in their name. Signed-off-by: Mark Brown <[email protected]> Reviewed-by: Dave Martin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2021-08-03KVM: selftests: Test access to XMM fast hypercallsVitaly Kuznetsov2-4/+42
Check that #UD is raised if bit 16 is clear in HYPERV_CPUID_FEATURES.EDX and an 'XMM fast' hypercall is issued. Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Siddharth Chandrasekaran <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-08-02kselftest/arm64: Ignore check_gcr_el1_cswitch binaryMark Brown1-0/+1
We added check_gcr_el1_cswitch but did not ignore the generated binary, add it. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
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