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2020-11-30tools/bootconfig: Store size and checksum in footer as le32Masami Hiramatsu
Store the size and the checksum fields in the footer as le32 instead of u32. This will allow us to apply bootconfig to the cross build initrd without caring the endianness. Link: https://lkml.kernel.org/r/160583935332.547349.5897811300636587426.stgit@devnote2 Reported-by: Steven Rostedt <rostedt@goodmis.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30selftests/bpf: Fix flavored variants of test_imaKP Singh
Flavored variants of test_progs (e.g. test_progs-no_alu32) change their working directory to the corresponding subdirectory (e.g. no_alu32). Since the setup script required by test_ima (ima_setup.sh) is not mentioned in the dependencies, it does not get copied to these subdirectories and causes flavored variants of test_ima to fail. Adding the script to TRUNNER_EXTRA_FILES ensures that the file is also copied to the subdirectories for the flavored variants of test_progs. Fixes: 34b82d3ac105 ("bpf: Add a selftest for bpf_ima_inode_hash") Reported-by: Yonghong Song <yhs@fb.com> Suggested-by: Yonghong Song <yhs@fb.com> Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201126184946.1708213-1-kpsingh@chromium.org
2020-11-30ktest.pl: Fix incorrect reboot for grub2blsLibo Chen
This issue was first noticed when I was testing different kernels on Oracle Linux 8 which as Fedora 30+ adopts BLS as default. Even though a kernel entry was added successfully and the index of that kernel entry was retrieved correctly, ktest still wouldn't reboot the system into user-specified kernel. The bug was spotted in subroutine reboot_to where the if-statement never checks for REBOOT_TYPE "grub2bls", therefore the desired entry will not be set for the next boot. Add a check for "grub2bls" so that $grub_reboot $grub_number can be run before a reboot if REBOOT_TYPE is "grub2bls" then we can boot to the correct kernel. Link: https://lkml.kernel.org/r/20201121021243.1532477-1-libo.chen@oracle.com Cc: stable@vger.kernel.org Fixes: ac2466456eaa ("ktest: introduce grub2bls REBOOT_TYPE option") Signed-off-by: Libo Chen <libo.chen@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30kunit: Introduce get_file_path() helperAndy Shevchenko
Helper allows to derive file names depending on --build_dir argument. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Tested-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-11-28selftests: tc-testing: enable CONFIG_NET_SCH_RED as a moduleDavide Caratti
a proper kernel configuration for running kselftest can be obtained with: $ yes | make kselftest-merge enable compile support for the 'red' qdisc: otherwise, tdc kselftest fail when trying to run tdc test items contained in red.json. Signed-off-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/cfa23f2d4f672401e6cebca3a321dd1901a9ff07.1606416464.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-28Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf 2020-11-28 1) Do not reference the skb for xsk's generic TX side since when looped back into RX it might crash in generic XDP, from Björn Töpel. 2) Fix umem cleanup on a partially set up xsk socket when being destroyed, from Magnus Karlsson. 3) Fix an incorrect netdev reference count when failing xsk_bind() operation, from Marek Majtyka. 4) Fix bpftool to set an error code on failed calloc() in build_btf_type_table(), from Zhen Lei. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Add MAINTAINERS entry for BPF LSM bpftool: Fix error return value in build_btf_type_table net, xsk: Avoid taking multiple skbuff references xsk: Fix incorrect netdev reference count xsk: Fix umem cleanup bug at socket destruct MAINTAINERS: Update XDP and AF_XDP entries ==================== Link: https://lore.kernel.org/r/20201128005104.1205-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Trivial conflict in CAN, keep the net-next + the byteswap wrapper. Conflicts: drivers/net/can/usb/gs_usb.c Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27selftests/tls: add CHACHA20-POLY1305 to tls selftestsVadim Fedorenko
Add new cipher as a variant of standard tls selftests Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27libbpf: Replace size_t with __u32 in xsk interfacesMagnus Karlsson
Replace size_t with __u32 in the xsk interfaces that contain this. There is no reason to have size_t since the internal variable that is manipulated is a __u32. The following APIs are affected: __u32 xsk_ring_prod__reserve(struct xsk_ring_prod *prod, __u32 nb, __u32 *idx) void xsk_ring_prod__submit(struct xsk_ring_prod *prod, __u32 nb) __u32 xsk_ring_cons__peek(struct xsk_ring_cons *cons, __u32 nb, __u32 *idx) void xsk_ring_cons__cancel(struct xsk_ring_cons *cons, __u32 nb) void xsk_ring_cons__release(struct xsk_ring_cons *cons, __u32 nb) The "nb" variable and the return values have been changed from size_t to __u32. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/1606383455-8243-1-git-send-email-magnus.karlsson@gmail.com
2020-11-27perf probe: Change function definition check due to broken DWARFMasami Hiramatsu
Since some gcc generates a broken DWARF which lacks DW_AT_declaration attribute from the subprogram DIE of function prototype. (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97060) So, in addition to the DW_AT_declaration check, we also check the subprogram DIE has DW_AT_inline or actual entry pc. Committer testing: # cat /etc/fedora-release Fedora release 33 (Thirty Three) # Before: # perf test vfs_getname 78: Use vfs_getname probe to get syscall args filenames : FAILED! 79: Check open filename arg using perf trace + vfs_getname : FAILED! 81: Add vfs_getname probe to get syscall args filenames : FAILED! # After: # perf test vfs_getname 78: Use vfs_getname probe to get syscall args filenames : Ok 79: Check open filename arg using perf trace + vfs_getname : Ok 81: Add vfs_getname probe to get syscall args filenames : Ok # Reported-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Link: http://lore.kernel.org/lkml/160645613571.2824037.7441351537890235895.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-27perf probe: Fix to die_entrypc() returns error correctlyMasami Hiramatsu
Fix die_entrypc() to return error correctly if the DIE has no DW_AT_ranges attribute. Since dwarf_ranges() will treat the case as an empty ranges and return 0, we have to check it by ourselves. Fixes: 91e2f539eeda ("perf probe: Fix to show function entry line as probe-able") Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: http://lore.kernel.org/lkml/160645612634.2824037.5284932731175079426.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-27perf stat: Use proper cpu for shadow statsNamhyung Kim
Currently perf stat shows some metrics (like IPC) for defined events. But when no aggregation mode is used (-A option), it shows incorrect values since it used a value from a different cpu. Before: $ perf stat -aA -e cycles,instructions sleep 1 Performance counter stats for 'system wide': CPU0 116,057,380 cycles CPU1 86,084,722 cycles CPU2 99,423,125 cycles CPU3 98,272,994 cycles CPU0 53,369,217 instructions # 0.46 insn per cycle CPU1 33,378,058 instructions # 0.29 insn per cycle CPU2 58,150,086 instructions # 0.50 insn per cycle CPU3 40,029,703 instructions # 0.34 insn per cycle 1.001816971 seconds time elapsed So the IPC for CPU1 should be 0.38 (= 33,378,058 / 86,084,722) but it was 0.29 (= 33,378,058 / 116,057,380) and so on. After: $ perf stat -aA -e cycles,instructions sleep 1 Performance counter stats for 'system wide': CPU0 109,621,384 cycles CPU1 159,026,454 cycles CPU2 99,460,366 cycles CPU3 124,144,142 cycles CPU0 44,396,706 instructions # 0.41 insn per cycle CPU1 120,195,425 instructions # 0.76 insn per cycle CPU2 44,763,978 instructions # 0.45 insn per cycle CPU3 69,049,079 instructions # 0.56 insn per cycle 1.001910444 seconds time elapsed Fixes: 44d49a600259 ("perf stat: Support metrics in --per-core/socket mode") Reported-by: Sam Xi <xyzsam@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20201127041404.390276-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-27perf record: Synthesize cgroup events only if neededNamhyung Kim
It didn't check the tool->cgroup_events bit which is set when the --all-cgroups option is given. Without it, samples will not have cgroup info so no reason to synthesize. We can check the PERF_RECORD_CGROUP records after running perf record *WITHOUT* the --all-cgroups option: Before: $ perf report -D | grep CGROUP 0 0 0x8430 [0x38]: PERF_RECORD_CGROUP cgroup: 1 / CGROUP events: 1 CGROUP events: 0 CGROUP events: 0 After: $ perf report -D | grep CGROUP CGROUP events: 0 CGROUP events: 0 CGROUP events: 0 Committer testing: Before: # perf record -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.208 MB perf.data (10003 samples) ] # perf report -D | grep "CGROUP events" CGROUP events: 146 CGROUP events: 0 CGROUP events: 0 # After: # perf record -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.208 MB perf.data (10448 samples) ] # perf report -D | grep "CGROUP events" CGROUP events: 0 CGROUP events: 0 CGROUP events: 0 # With all-cgroups: # perf record --all-cgroups -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.374 MB perf.data (11526 samples) ] # perf report -D | grep "CGROUP events" CGROUP events: 146 CGROUP events: 0 CGROUP events: 0 # Fixes: 8fb4b67939e16 ("perf record: Add --all-cgroups option") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20201127054356.405481-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-27perf diff: Fix error return value in __cmd_diff()Zhen Lei
An appropriate return value should be set on the failed path. Fixes: 2a09a84c720b436a ("perf diff: Support hot streams comparison") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20201124103652.438-1-thunder.leizhen@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-27perf tools: Update copy of libbpf's hashmap.cArnaldo Carvalho de Melo
To pick the changes in: 7a078d2d18801bba ("libbpf, hashmap: Fix undefined behavior in hash_bits") That don't entail any changes in tools/perf. This addresses this perf build warning: Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h' diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h Not a kernel ABI, its just that this uses the mechanism in place for checking kernel ABI files drift. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26bpf: Fix selftest compilation on clang 11Andrei Matei
Before this patch, profiler.inc.h wouldn't compile with clang-11 (before the __builtin_preserve_enum_value LLVM builtin was introduced in https://reviews.llvm.org/D83242). Another test that uses this builtin (test_core_enumval) is conditionally skipped if the compiler is too old. In that spirit, this patch inhibits part of populate_cgroup_info(), which needs this CO-RE builtin. The selftests build again on clang-11. The affected test (the profiler test) doesn't pass on clang-11 because it's missing https://reviews.llvm.org/D85570, but at least the test suite as a whole compiles. The test's expected failure is already called out in the README. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Florian Lehner <dev@der-flo.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201125035255.17970-1-andreimatei1@gmail.com
2020-11-26bpf: Add a selftest for bpf_ima_inode_hashKP Singh
The test does the following: - Mounts a loopback filesystem and appends the IMA policy to measure executions only on this file-system. Restricting the IMA policy to a particular filesystem prevents a system-wide IMA policy change. - Executes an executable copied to this loopback filesystem. - Calls the bpf_ima_inode_hash in the bprm_committed_creds hook and checks if the call succeeded and checks if a hash was calculated. The test shells out to the added ima_setup.sh script as the setup is better handled in a shell script and is more complicated to do in the test program or even shelling out individual commands from C. The list of required configs (i.e. IMA, SECURITYFS, IMA_{WRITE,READ}_POLICY) for running this test are also updated. Suggested-by: Mimi Zohar <zohar@linux.ibm.com> (limit policy rule to loopback mount) Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201124151210.1081188-4-kpsingh@chromium.org
2020-11-26bpf: Add a BPF helper for getting the IMA hash of an inodeKP Singh
Provide a wrapper function to get the IMA hash of an inode. This helper is useful in fingerprinting files (e.g executables on execution) and using these fingerprints in detections like an executable unlinking itself. Since the ima_inode_hash can sleep, it's only allowed for sleepable LSM hooks. Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201124151210.1081188-3-kpsingh@chromium.org
2020-11-25libbpf: Add support for canceling cached_cons advanceLi RongQing
Add a new function for returning descriptors the user received after an xsk_ring_cons__peek call. After the application has gotten a number of descriptors from a ring, it might not be able to or want to process them all for various reasons. Therefore, it would be useful to have an interface for returning or cancelling a number of them so that they are returned to the ring. This patch adds a new function called xsk_ring_cons__cancel that performs this operation on nb descriptors counted from the end of the batch of descriptors that was received through the peek call. Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> [ Magnus Karlsson: rewrote changelog ] Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/1606202474-8119-1-git-send-email-lirongqing@baidu.com
2020-11-25Merge branch 'fixes' into nextMichael Ellerman
Merge our fixes branch, in particular to bring in the changes for the entry/uaccess flush.
2020-11-24bpftool: Fix error return value in build_btf_type_tableZhen Lei
An appropriate return value should be set on the failed path. Fixes: 4d374ba0bf30 ("tools: bpftool: implement "bpftool btf show|list"") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201124104100.491-1-thunder.leizhen@huawei.com
2020-11-24selftest/bpf: Fix rst formatting in readmeAndrei Matei
A couple of places in the readme had invalid rst formatting causing the rendering to be off. This patch fixes them with minimal edits. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201122022205.57229-2-andreimatei1@gmail.com
2020-11-24selftest/bpf: Fix link in readmeAndrei Matei
The link was bad because of invalid rst; it was pointing to itself and was rendering badly. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201122022205.57229-1-andreimatei1@gmail.com
2020-11-24selftests: mlxsw: Add blackhole_nexthop trap testIdo Schimmel
Test that packets hitting a blackhole nexthop are trapped to the CPU when the trap is enabled. Test that packets are not reported when the trap is disabled. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24selftests: forwarding: Add blackhole nexthops testsIdo Schimmel
Test that IPv4 and IPv6 ping fail when the route is using a blackhole nexthop or a group with a blackhole nexthop. Test that ping passes when the route starts using a valid nexthop. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24selftests: mlxsw: Add blackhole nexthop configuration testsIdo Schimmel
Test the mlxsw allows blackhole nexthops to be installed and that the nexthops are marked as offloaded. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24selftests/x86: Add missing .note.GNU-stack sectionsAndy Lutomirski
Several of the x86 selftests end up with executable stacks because the asm was missing the annotation that says that they are modern and don't need executable stacks. Add the annotations. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/6f043c03e9e0e4557e1e975a63b07a4d18965a68.1604346596.git.luto@kernel.org
2020-11-24selftests/x86/fsgsbase: Fix GS == 1, 2, and 3 testsAndy Lutomirski
Setting GS to 1, 2, or 3 causes a nonsensical part of the IRET microcode to change GS back to zero on a return from kernel mode to user mode. The result is that these tests fail randomly depending on when interrupts happen. Detect when this happens and let the test pass. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/7567fd44a1d60a9424f25b19a998f12149993b0d.1604346596.git.luto@kernel.org
2020-11-23tools/testing/scatterlist: Test dynamic __sg_alloc_table_from_pagesMaor Gottlieb
Add few cases to test the dynamic allocation flow of __sg_alloc_table_from_pages. Link: https://lore.kernel.org/r/20201115120650.139277-1-leon@kernel.org Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-11-23pm-graph v5.8Todd Brandt
- if wakeups occur in s2idle: "freeze time: N (-x ms waking y times) ms" - change FREEZELOOP and FREEZEWAKE to S2LOOP and S2WAKE for brevity - returns all sysfs vals to their initial state after testing - use the dmesg log for debugging until the test is completed, instrument the executeSuspend process to have a full trace, if test completes, formal dmesg log overwrites the debug log - fix CPU_ON and CPU_OFF devices in the timeline, should include [n] Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-11-23Merge 5.10-rc5 into staging-testingGreg Kroah-Hartman
We want the staging/IIO fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-21Merge tag 'seccomp-v5.10-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp fixes from Kees Cook: "This gets the seccomp selftests running again on powerpc and sh, and fixes an audit reporting oversight noticed in both seccomp and ptrace. - Fix typos in seccomp selftests on powerpc and sh (Kees Cook) - Fix PF_SUPERPRIV audit marking in seccomp and ptrace (Mickaël Salaün)" * tag 'seccomp-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: sh: Fix register names selftests/seccomp: powerpc: Fix typo in macro variable name seccomp: Set PF_SUPERPRIV when checking capability ptrace: Set PF_SUPERPRIV when checking capability
2020-11-20selftests: mptcp: add ADD_ADDR IPv6 test casesGeliang Tang
This patch added IPv6 support for do_transfer, and the test cases for ADD_ADDR IPv6. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: mptcp: add link failure test caseFlorian Westphal
Add a test case where a link fails with multiple subflows. The expectation is that MPTCP will transmit any data that could not be delivered via the failed link on another subflow. Co-developed-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: forwarding: Add multipath tunneling nexthop testIdo Schimmel
Add a nexthop objects version of gre_multipath.sh. Unlike the original test, it also tests IPv6 overlay which is not possible with the legacy nexthop implementation. See commit 9a2ad3623868 ("selftests: forwarding: gre_multipath: Drop IPv6 tests") for more info. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: forwarding: Add device-only nexthop testIdo Schimmel
In a similar fashion to router_multipath.sh and its nexthop objects version router_mpath_nh.sh, create a nexthop objects version of router.sh. It reuses the same topology, but uses device-only nexthop objects instead of legacy ones. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: forwarding: Test IPv4 routes with IPv6 link-local nexthopsIdo Schimmel
In addition to IPv4 multipath tests with IPv4 nexthops, also test IPv4 multipath with nexthops that use IPv6 link-local addresses. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: forwarding: Do not configure nexthop objects twiceIdo Schimmel
routing_nh_obj() is used to configure the nexthop objects employed by the test, but it is called twice resulting in "RTNETLINK answers: File exists" messages. Remove the first call, so that the function is only called after setup_wait(), when all the interfaces are up and ready. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: mlxsw: Add nexthop objects configuration testsIdo Schimmel
Test that unsupported nexthop objects are rejected and that offload indication is correctly set on: nexthop objects, nexthop group objects and routes associated these objects. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: add ring and coalesce selftestsAntonio Cardace
Add scripts to test ring and coalesce settings of netdevsim. Signed-off-by: Antonio Cardace <acardace@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: refactor get_netdev_name functionAntonio Cardace
As pointed out by Michal Kubecek, getting the name with the previous approach was racy, it's better and easier to get the name of the device with this patch's approach. Essentialy the function doesn't need to exist anymore as it's a simple 'ls' command. Signed-off-by: Antonio Cardace <acardace@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20selftests: extract common functions in ethtool-common.shAntonio Cardace
Factor out some useful functions so that they can be reused by other ethtool-netdevsim scripts. Signed-off-by: Antonio Cardace <acardace@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20Merge branch 'for-linus/seccomp' into for-next/seccompKees Cook
2020-11-20selftests/seccomp: Compare bitmap vs filter overheadKees Cook
As part of the seccomp benchmarking, include the expectations with regard to the timing behavior of the constant action bitmaps, and report inconsistencies better. Example output with constant action bitmaps on x86: $ sudo ./seccomp_benchmark 100000000 Current BPF sysctl settings: net.core.bpf_jit_enable = 1 net.core.bpf_jit_harden = 0 Benchmarking 200000000 syscalls... 129.359381409 - 0.008724424 = 129350656985 (129.4s) getpid native: 646 ns 264.385890006 - 129.360453229 = 135025436777 (135.0s) getpid RET_ALLOW 1 filter (bitmap): 675 ns 399.400511893 - 264.387045901 = 135013465992 (135.0s) getpid RET_ALLOW 2 filters (bitmap): 675 ns 545.872866260 - 399.401718327 = 146471147933 (146.5s) getpid RET_ALLOW 3 filters (full): 732 ns 696.337101319 - 545.874097681 = 150463003638 (150.5s) getpid RET_ALLOW 4 filters (full): 752 ns Estimated total seccomp overhead for 1 bitmapped filter: 29 ns Estimated total seccomp overhead for 2 bitmapped filters: 29 ns Estimated total seccomp overhead for 3 full filters: 86 ns Estimated total seccomp overhead for 4 full filters: 106 ns Estimated seccomp entry overhead: 29 ns Estimated seccomp per-filter overhead (last 2 diff): 20 ns Estimated seccomp per-filter overhead (filters / 4): 19 ns Expectations: native ≤ 1 bitmap (646 ≤ 675): ✔️ native ≤ 1 filter (646 ≤ 732): ✔️ per-filter (last 2 diff) ≈ per-filter (filters / 4) (20 ≈ 19): ✔️ 1 bitmapped ≈ 2 bitmapped (29 ≈ 29): ✔️ entry ≈ 1 bitmapped (29 ≈ 29): ✔️ entry ≈ 2 bitmapped (29 ≈ 29): ✔️ native + entry + (per filter * 4) ≈ 4 filters total (755 ≈ 752): ✔️ [YiFei: Changed commit message to show stats for this patch series] Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/1b61df3db85c5f7f1b9202722c45e7b39df73ef2.1602431034.git.yifeifz2@illinois.edu
2020-11-20selftests/seccomp: sh: Fix register namesKees Cook
It looks like the seccomp selftests was never actually built for sh. This fixes it, though I don't have an environment to do a runtime test of it yet. Fixes: 0bb605c2c7f2b4b3 ("sh: Add SECCOMP_FILTER") Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/lkml/a36d7b48-6598-1642-e403-0c77a86f416d@physik.fu-berlin.de Signed-off-by: Kees Cook <keescook@chromium.org>
2020-11-20selftests/seccomp: powerpc: Fix typo in macro variable nameKees Cook
A typo sneaked into the powerpc selftest. Fix the name so it builds again. Fixes: 46138329faea ("selftests/seccomp: powerpc: Fix seccomp return value testing") Acked-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/lkml/87y2ix2895.fsf@mpe.ellerman.id.au Signed-off-by: Kees Cook <keescook@chromium.org>
2020-11-20bpftool: Add {i,d}tlb_misses support for bpftool profileYonghong Song
Commit 47c09d6a9f67("bpftool: Introduce "prog profile" command") introduced "bpftool prog profile" command which can be used to profile bpf program with metrics like # of instructions, This patch added support for itlb_misses and dtlb_misses. During an internal bpf program performance evaluation, I found these two metrics are also very useful. The following is an example output: $ bpftool prog profile id 324 duration 3 cycles itlb_misses 1885029 run_cnt 5134686073 cycles 306893 itlb_misses $ bpftool prog profile id 324 duration 3 cycles dtlb_misses 1827382 run_cnt 4943593648 cycles 5975636 dtlb_misses $ bpftool prog profile id 324 duration 3 cycles llc_misses 1836527 run_cnt 5019612972 cycles 4161041 llc_misses From the above, we can see quite some dtlb misses, 3 dtlb misses perf prog run. This might be something worth further investigation. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20201119073039.4060095-1-yhs@fb.com
2020-11-19Merge branch 'lkmm.2020.11.06a' into HEADPaul E. McKenney
lkmm.2020.11.06a: Linux-kernel memory model (LKMM) updates.
2020-11-19Merge branches 'cpuinfo.2020.11.06a', 'doc.2020.11.06a', ↵Paul E. McKenney
'fixes.2020.11.19b', 'lockdep.2020.11.02a', 'tasks.2020.11.06a' and 'torture.2020.11.06a' into HEAD cpuinfo.2020.11.06a: Speedups for /proc/cpuinfo. doc.2020.11.06a: Documentation updates. fixes.2020.11.19b: Miscellaneous fixes. lockdep.2020.11.02a: Lockdep-RCU updates to avoid "unused variable". tasks.2020.11.06a: Tasks-RCU updates. torture.2020.11.06a': Torture-test updates.
2020-11-19Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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