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2023-07-29KVM: selftests: Verify stats fd can be dup()'d and readSean Christopherson1-1/+7
Expand the binary stats test to verify that a stats fd can be dup()'d and read, to (very) roughly simulate userspace passing around the file. Adding the dup() test is primarily an intermediate step towards verifying that userspace can read VM/vCPU stats before _and_ after userspace closes its copy of the VM fd; the dup() test itself is only mildly interesting. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Verify userspace can create "redundant" binary stats filesSean Christopherson1-2/+23
Verify that KVM doesn't artificially limit KVM_GET_STATS_FD to a single file per VM/vCPU. There's no known use case for getting multiple stats fds, but it should work, and more importantly creating multiple files will make it easier to test that KVM correct manages VM refcounts for stats files. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Explicitly free vcpus array in binary stats testSean Christopherson1-0/+1
Explicitly free the all-encompassing vcpus array in the binary stats test so that the test is consistent with respect to freeing all dynamically allocated resources (versus letting them be freed on exit). Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Clean up stats fd in common stats_test() helperSean Christopherson1-18/+4
Move the stats fd cleanup code into stats_test() and drop the superfluous vm_stats_test() and vcpu_stats_test() helpers in order to decouple creation of the stats file from consuming/testing the file (deduping code is a bonus). This will make it easier to test various edge cases related to stats, e.g. that userspace can dup() a stats fd, that userspace can have multiple stats files for a singleVM/vCPU, etc. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Use pread() to read binary stats headerSean Christopherson2-4/+8
Use pread() with an explicit offset when reading the header and the header name for a binary stats fd so that the common helper and the binary stats test don't subtly rely on the file effectively being untouched, e.g. to allow multiple reads of the header, name, etc. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29selftests/rseq: Play nice with binaries statically linked against glibc 2.35+Sean Christopherson1-6/+22
To allow running rseq and KVM's rseq selftests as statically linked binaries, initialize the various "trampoline" pointers to point directly at the expect glibc symbols, and skip the dlysm() lookups if the rseq size is non-zero, i.e. the binary is statically linked *and* the libc registered its own rseq. Define weak versions of the symbols so as not to break linking against libc versions that don't support rseq in any capacity. The KVM selftests in particular are often statically linked so that they can be run on targets with very limited runtime environments, i.e. test machines. Fixes: 233e667e1ae3 ("selftests/rseq: Uplift rseq selftests for compatibility with glibc-2.35") Cc: Aaron Lewis <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-28bpf: selftests: Add defrag selftestsDaniel Xu5-2/+536
These selftests tests 2 major scenarios: the BPF based defragmentation can successfully be done and that packet pointers are invalidated after calls to the kfunc. The logic is similar for both ipv4 and ipv6. In the first scenario, we create a UDP client and UDP echo server. The the server side is fairly straightforward: we attach the prog and simply echo back the message. The on the client side, we send fragmented packets to and expect the reassembled message back from the server. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/33e40fdfddf43be93f2cb259303f132f46750953.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28bpf: selftests: Support custom type and proto for client socketsDaniel Xu2-6/+17
Extend connect_to_fd_opts() to take optional type and protocol parameters for the client socket. These parameters are useful when opening a raw socket to send IP fragments. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/9067db539efdfd608aa86a2b143c521337c111fc.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28bpf: selftests: Support not connecting client socketDaniel Xu2-2/+4
For connectionless protocols or raw sockets we do not want to actually connect() to the server. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/525c13d66dac2d640a1db922546842c051c6f2e6.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28XArray: Do not return sibling entries from xa_load()Matthew Wilcox (Oracle)1-2/+66
It is possible for xa_load() to observe a sibling entry pointing to another sibling entry. An example: Thread A: Thread B: xa_store_range(xa, entry, 188, 191, gfp); xa_load(xa, 191); entry = xa_entry(xa, node, 63); [entry is a sibling of 188] xa_store_range(xa, entry, 184, 191, gfp); if (xa_is_sibling(entry)) offset = xa_to_sibling(entry); entry = xa_entry(xas->xa, node, offset); [entry is now a sibling of 184] It is sufficient to go around this loop until we hit a non-sibling entry. Sibling entries always point earlier in the node, so we are guaranteed to terminate this search. Signed-off-by: Matthew Wilcox (Oracle) <[email protected]> Fixes: 6b24ca4a1a8d ("mm: Use multi-index entries in the page cache") Cc: [email protected]
2023-07-28Merge tag 'cxl-fixes-6.5-rc4' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fixes from Vishal Verma: - Update MAINTAINERS for cxl - A few static analysis fixes - Fix a Kconfig dependency for CONFIG_FW_LOADER * tag 'cxl-fixes-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: tools/testing/cxl: Remove unused SZ_512G macro cxl/acpi: Return 'rc' instead of '0' in cxl_parse_cfmws() cxl/acpi: Fix a use-after-free in cxl_parse_cfmws() cxl: Update MAINTAINERS cxl/mem: Fix a double shift bug cxl: fix CONFIG_FW_LOADER dependency
2023-07-28iommufd/selftest: Add IOMMU_TEST_OP_ACCESS_REPLACE_IOAS coverageNicolin Chen2-2/+46
Add a new IOMMU_TEST_OP_ACCESS_REPLACE_IOAS to allow replacing the access->ioas, corresponding to the iommufd_access_replace() helper. Then add replace coverage as a part of user_copy test case, which basically repeats the copy test after replacing the old ioas with a new one. Link: https://lore.kernel.org/r/a4897f93d41c34b972213243b8dbf4c3832842e4.1690523699.git.nicolinc@nvidia.com Reviewed-by: Kevin Tian <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Signed-off-by: Nicolin Chen <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2023-07-28selftests/bpf: Enable test test_progs-cpuv4 for gcc build kernelYonghong Song1-2/+3
Currently, test_progs-cpuv4 is generated with clang build kernel when bpf cpu=v4 is supported by the clang compiler. Let us enable test_progs-cpuv4 for gcc build kernel as well. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28selftests/ptp: Add -X option for testing PTP_SYS_OFFSET_PRECISEAlex Maftei1-1/+30
The -X option was chosen because X looks like a cross, and the underlying callback is 'get cross timestamp'. Signed-off-by: Alex Maftei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-07-28selftests/ptp: Add -x option for testing PTP_SYS_OFFSET_EXTENDEDAlex Maftei1-2/+42
The -x option (where 'x' stands for eXtended) takes an argument which represents the number of samples to request from the PTP device. The help message will display the maximum number of samples allowed. Providing an invalid argument will also display the maximum number of samples allowed. Signed-off-by: Alex Maftei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-07-27Merge branch 'net-tls-fixes-for-nvme-over-tls'Jakub Kicinski1-0/+11
Hannes Reinecke says: ==================== net/tls: fixes for NVMe-over-TLS here are some small fixes to get NVMe-over-TLS up and running. The first set are just minor modifications to have MSG_EOR handled for TLS, but the second set implements the ->read_sock() callback for tls_sw. The ->read_sock() callbacks return -EIO when encountering any TLS Alert message, but as that's the default behaviour anyway I guess we can get away with it. ==================== Applied on top of the tag in case Sagi gets convinced to pull it. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-27selftests/net/tls: add test for MSG_EORHannes Reinecke1-0/+11
As the recent patch is modifying the behaviour for TLS re MSG_EOR handling we should be having a test for it. Signed-off-by: Hannes Reinecke <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-27selftests/bpf: Test ldsx with more complex casesYonghong Song3-1/+265
The following ldsx cases are tested: - signed readonly map value - read/write map value - probed memory - not-narrowed ctx field access - narrowed ctx field access. Without previous proper verifier/git handling, the test will fail. If cpuv4 is not supported either by compiler or by jit, the test will be skipped. # ./test_progs -t ldsx_insn #113/1 ldsx_insn/map_val and probed_memory:SKIP #113/2 ldsx_insn/ctx_member_sign_ext:SKIP #113/3 ldsx_insn/ctx_member_narrow_sign_ext:SKIP #113 ldsx_insn:SKIP Summary: 1/0 PASSED, 3 SKIPPED, 0 FAILED Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add unit tests for new gotol insnYonghong Song2-0/+46
Add unit tests for gotol insn. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add unit tests for new sdiv/smod insnsYonghong Song2-0/+783
Add unit tests for sdiv/smod insns. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add unit tests for new bswap insnsYonghong Song2-0/+61
Add unit tests for bswap insns. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add unit tests for new sign-extension mov insnsYonghong Song2-0/+215
Add unit tests for movsx insns. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add unit tests for new sign-extension load insnsYonghong Song2-0/+133
Add unit tests for new ldsx insns. The test includes sign-extension with a single value or with a value range. If cpuv4 is not supported due to (1) older compiler, e.g., less than clang version 18, or (2) test runner test_progs and test_progs-no_alu32 which tests cpu v2 and v3, or (3) non-x86_64 arch not supporting new insns in jit yet, a dummy program is added with below output: #318/1 verifier_ldsx/cpuv4 is not supported by compiler or jit, use a dummy test:OK #318 verifier_ldsx:OK to indicate the test passed with a dummy test instead of actually testing cpuv4. I am using a dummy prog to avoid changing the verifier testing infrastructure. Once clang 18 is widely available and other architectures support cpuv4, at least for CI run, the dummy program can be removed. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Add a cpuv4 test runner for cpu=v4 testingYonghong Song2-4/+26
Similar to no-alu32 runner, if clang compiler supports -mcpu=v4, a cpuv4 runner is created to test bpf programs compiled with -mcpu=v4. The following are some num-of-insn statistics for each newer instructions based on existing selftests, excluding subsequent cpuv4 insn specific tests. insn pattern # of instructions reg = (s8)reg 4 reg = (s16)reg 4 reg = (s32)reg 144 reg = *(s8 *)(reg + off) 13 reg = *(s16 *)(reg + off) 14 reg = *(s32 *)(reg + off) 15215 reg = bswap16 reg 142 reg = bswap32 reg 38 reg = bswap64 reg 14 reg s/= reg 0 reg s%= reg 0 gotol <offset> 58 Note that in llvm -mcpu=v4 implementation, the compiler is a little bit conservative about generating 'gotol' insn (32-bit branch offset) as it didn't precise count the number of insns (e.g., some insns are debug insns, etc.). Compared to old 'goto' insn, newer 'gotol' insn should have comparable verification states to 'goto' insn. With current patch set, all selftests passed with -mcpu=v4 when running test_progs-cpuv4 binary. The -mcpu=v3 and -mcpu=v2 run are also successful. Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27selftests/bpf: Fix a test_verifier failureYonghong Song1-3/+3
The following test_verifier subtest failed due to new encoding for BSWAP. $ ./test_verifier ... #99/u invalid 64-bit BPF_END FAIL Unexpected success to load! verification time 215 usec stack depth 0 processed 3 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 #99/p invalid 64-bit BPF_END FAIL Unexpected success to load! verification time 198 usec stack depth 0 processed 3 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 Tighten the test so it still reports a failure. Acked-by: Eduard Zingerman <[email protected]> Signed-off-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-6/+3
Cross-merge networking fixes after downstream PR. No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-27Merge tag 'net-6.5-rc4' of ↵Linus Torvalds1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from can, netfilter. Current release - regressions: - core: fix splice_to_socket() for O_NONBLOCK socket - af_unix: fix fortify_panic() in unix_bind_bsd(). - can: raw: fix lockdep issue in raw_release() Previous releases - regressions: - tcp: reduce chance of collisions in inet6_hashfn(). - netfilter: skip immediate deactivate in _PREPARE_ERROR - tipc: stop tipc crypto on failure in tipc_node_create - eth: igc: fix kernel panic during ndo_tx_timeout callback - eth: iavf: fix potential deadlock on allocation failure Previous releases - always broken: - ipv6: fix bug where deleting a mngtmpaddr can create a new temporary address - eth: ice: fix memory management in ice_ethtool_fdir.c - eth: hns3: fix the imp capability bit cannot exceed 32 bits issue - eth: vxlan: calculate correct header length for GPE - eth: stmmac: apply redundant write work around on 4.xx too" * tag 'net-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits) tipc: stop tipc crypto on failure in tipc_node_create af_unix: Terminate sun_path when bind()ing pathname socket. tipc: check return value of pskb_trim() benet: fix return value check in be_lancer_xmit_workarounds() virtio-net: fix race between set queues and probe net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64 splice, net: Fix splice_to_socket() for O_NONBLOCK socket net: fec: tx processing does not call XDP APIs if budget is 0 mptcp: more accurate NL event generation selftests: mptcp: join: only check for ip6tables if needed tools: ynl-gen: fix parse multi-attr enum attribute tools: ynl-gen: fix enum index in _decode_enum(..) netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR netfilter: nft_set_rbtree: fix overlap expiration walk igc: Fix Kernel Panic during ndo_tx_timeout callback net: dsa: qca8k: fix mdb add/del case with 0 VID net: dsa: qca8k: fix broken search_and_del net: dsa: qca8k: fix search_and_insert wrong handling of new rule net: dsa: qca8k: enable use_single_write for qca8xxx ...
2023-07-27kselftest/arm64: Validate that changing one VL type does not affect anotherMark Brown1-1/+21
On a system with both SVE and SME when we change one of the VLs this should not result in a change in the other VL. Add a check that this is in fact the case to vec-syscfg. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/20230720-arm64-fix-sve-sme-vl-change-v2-3-8eea06b82d57@kernel.org Signed-off-by: Will Deacon <[email protected]>
2023-07-27kselftest/arm64: Add a test case for SVE VL changes with SME activeMark Brown1-3/+102
We just fixed an issue where changing the SVE VL while SME was active could result in us attempting to save the streaming mode SVE vectors without any backing storage. Add a test case which provokes that issue, ideally we should also verify that the contents of ZA are unaffected by any of what we did. Note that since we need to keep streaming mode enabled we can't use any syscalls to trigger the issue, we have to sit in a loop in usersapce and hope to be preempted. The chosen numbers trigger with defconfig on all the virtual platforms for me, this won't be 100% on all systems but avoid an overcomplicated test implementation. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/20230720-arm64-fix-sve-sme-vl-change-v2-2-8eea06b82d57@kernel.org Signed-off-by: Will Deacon <[email protected]>
2023-07-27vsock/test: MSG_PEEK test for SOCK_SEQPACKETArseniy Krasnov1-4/+54
This adds MSG_PEEK test for SOCK_SEQPACKET. It works in the same way as SOCK_STREAM test, except it also tests MSG_TRUNC flag. Signed-off-by: Arseniy Krasnov <[email protected]> Reviewed-by: Stefano Garzarella <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
2023-07-27vsock/test: rework MSG_PEEK test for SOCK_STREAMArseniy Krasnov1-3/+75
This new version makes test more complicated by adding empty read, partial read and data comparisons between MSG_PEEK and normal reads. Signed-off-by: Arseniy Krasnov <[email protected]> Reviewed-by: Stefano Garzarella <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
2023-07-27selftests: Add fchmodat2 selftestAlexey Gladkov4-0/+171
The test marks as skipped if a syscall with the AT_SYMLINK_NOFOLLOW flag fails. This is because not all filesystems support changing the mode bits of symlinks properly. These filesystems return an error but change the mode bits: newfstatat(4, "regfile", {st_mode=S_IFREG|0640, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0 newfstatat(4, "symlink", {st_mode=S_IFLNK|0777, st_size=7, ...}, AT_SYMLINK_NOFOLLOW) = 0 syscall_0x1c3(0x4, 0x55fa1f244396, 0x180, 0x100, 0x55fa1f24438e, 0x34) = -1 EOPNOTSUPP (Operation not supported) newfstatat(4, "regfile", {st_mode=S_IFREG|0640, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0 This happens with btrfs and xfs: $ tools/testing/selftests/fchmodat2/fchmodat2_test TAP version 13 1..1 ok 1 # SKIP fchmodat2(symlink) # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0 $ stat /tmp/ksft-fchmodat2.*/symlink File: /tmp/ksft-fchmodat2.3NCqlE/symlink -> regfile Size: 7 Blocks: 0 IO Block: 4096 symbolic link Device: 7,0 Inode: 133 Links: 1 Access: (0600/lrw-------) Uid: ( 0/ root) Gid: ( 0/ root) Signed-off-by: Alexey Gladkov <[email protected]> Message-Id: <4532a04a870ff589ba62ceeacf76f0bd81b9ba01.1689092120.git.legion@kernel.org> Signed-off-by: Christian Brauner <[email protected]>
2023-07-26selftests: mptcp: join: only check for ip6tables if neededMatthieu Baerts1-3/+1
If 'iptables-legacy' is available, 'ip6tables-legacy' command will be used instead of 'ip6tables'. So no need to look if 'ip6tables' is available in this case. Cc: [email protected] Fixes: 0c4cd3f86a40 ("selftests: mptcp: join: use 'iptables-legacy' if available") Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-26kunit: tool: Add command line interface to filter and report attributesRae Moar4-29/+99
Add ability to kunit.py to filter attributes and report a list of tests including attributes without running tests. Add flag "--filter" to input filters on test attributes. Tests will be filtered out if they do not match all inputted filters. Example: --filter speed=slow (This filter would run only the tests that are marked as slow) Filters have operations: <, >, <=, >=, !=, and =. But note that the characters < and > are often interpreted by the shell, so they may need to be quoted or escaped. Example: --filter "speed>slow" or --filter speed\>slow (This filter would run only the tests that have the speed faster than slow. Additionally, multiple filters can be used. Example: --filter "speed=slow, module!=example" (This filter would run only the tests that have the speed slow and are not in the "example" module) Note if the user wants to skip filtered tests instead of not running/showing them use the "--filter_action=skip" flag instead. Expose the output of kunit.action=list option with flag "--list_tests" to output a list of tests. Additionally, add flag "--list_tests_attr" to output a list of tests and their attributes. These flags are useful to see tests and test attributes without needing to run tests. Example of the output of "--list_tests_attr": example example.test_1 example.test_2 # example.test_2.speed: slow This output includes a suite, example, with two test cases, test_1 and test_2. And in this instance test_2 has been marked as slow. Reviewed-by: David Gow <[email protected]> Signed-off-by: Rae Moar <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-26iommufd/selftest: Add a selftest for IOMMU_HWPT_ALLOCJason Gunthorpe3-1/+46
Test the basic flow. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Kevin Tian <[email protected]> Tested-by: Nicolin Chen <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2023-07-26iommufd/selftest: Return the real idev id from selftest mock_domainJason Gunthorpe3-21/+26
Now that we actually call iommufd_device_bind() we can return the idev_id from that function to userspace for use in other APIs. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Kevin Tian <[email protected]> Tested-by: Nicolin Chen <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2023-07-26iommufd/selftest: Test iommufd_device_replace()Nicolin Chen3-4/+105
Allow the selftest to call the function on the mock idev, add some tests to exercise it. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Kevin Tian <[email protected]> Tested-by: Nicolin Chen <[email protected]> Signed-off-by: Nicolin Chen <[email protected]> Signed-off-by: Yi Liu <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2023-07-26selftests/ftrace: Fix to check fprobe event eneblementMasami Hiramatsu (Google)1-1/+1
Fix to check the availability of fprobe and kprobes for add_remove_btfarg.tc. Only if both kprobe and fprobe are not supported, it should return "unsupported". Link: https://lore.kernel.org/all/169024904889.395371.17998733386857387118.stgit@devnote2/ Fixes: 4231f30fcc34 ("selftests/ftrace: Add BTF arguments test cases") Signed-off-by: Masami Hiramatsu (Google) <[email protected]> Reviewed-by: Steven Rostedt (Google) <[email protected]>
2023-07-25selftests/xsk: Fix spelling mistake "querrying" -> "querying"Colin Ian King1-1/+1
There is a spelling mistake in an error message. Fix it. Signed-off-by: Colin Ian King <[email protected]> Acked-by: Björn Töpel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin KaFai Lau <[email protected]>
2023-07-25selftests/bpf: Test that SO_REUSEPORT can be used with sk_assign helperDaniel Borkmann3-0/+344
We use two programs to check that the new reuseport logic is executed appropriately. The first is a TC clsact program which bpf_sk_assigns the skb to a UDP or TCP socket created by user space. Since the test communicates via lo we see both directions of packets in the eBPF. Traffic ingressing to the reuseport socket is identified by looking at the destination port. For TCP, we additionally need to make sure that we only assign the initial SYN packets towards our listening socket. The network stack then creates a request socket which transitions to ESTABLISHED after the 3WHS. The second is a reuseport program which shares the fact that it has been executed with user space. This tells us that the delayed lookup mechanism is working. Signed-off-by: Daniel Borkmann <[email protected]> Co-developed-by: Lorenz Bauer <[email protected]> Signed-off-by: Lorenz Bauer <[email protected]> Cc: Joe Stringer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin KaFai Lau <[email protected]>
2023-07-25selftests:prctl: add set-process-name to .gitignoreShuah Khan1-0/+1
Add newly addded set-process-name test to .gitignore Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests:prctl: Fix make clean override warningShuah Khan1-2/+0
Remove clean target in Makefile to fix the following warning and use the one in common lib.mk Makefile:14: warning: overriding recipe for target 'clean' ../lib.mk:160: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Remove test type checks from cat_val()Ilpo Järvinen1-27/+20
cat_val() is only used during CAT test but it checks for test type. Remove test type checks and the unused else branch from cat_val(). Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Pass the real number of tests to show_cache_info()Ilpo Järvinen3-3/+3
Results include warm-up test which is discarded before passing the sum to show_cache_info(). show_cache_info() handles this by subtracting one from the number of tests in divisor. It is a trappy construct to have sum and number of tests parameters to disagree like this. A more logical place for subtracting the skipped tests is where the sum is calculated so move it there. Pass the correct number of tests to show_cache_info() so it can be used directly as the divisor for calculating the average. Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Move CAT/CMT test global vars to function they are used inIlpo Järvinen2-14/+8
CAT and CMT tests have count_of_bits, long_mask, cbm_mask, and cache_size global variables that can be moved into the sole using function. Make the global variables local variables of the relevant function to scope them better. While at it, move cache_size initialization into the declaration line. Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Don't use variable argument list for ->setup()Ilpo Järvinen7-33/+7
struct resctrl_val_param has ->setup() function that accepts variable argument list. All test cases use only 1 argument as input and it's the struct resctrl_val_param pointer. Instead of variable argument list, directly pass struct resctrl_val_param pointer as the only parameter to ->setup(). Co-developed-by: Fenghua Yu <[email protected]> Signed-off-by: Fenghua Yu <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Don't pass test name to fill_bufIlpo Järvinen5-26/+24
Test name is passed to fill_buf functions so that they can loop around buffer only once. This is required for CAT test case. To loop around buffer only once, caller doesn't need to let fill_buf know which test case it is. Instead, pass a boolean argument 'once' which makes fill_buf more generic. As run_benchmark() no longer needs to pass the test name to run_fill_buf(), a few test running functions can be simplified to not write the test name into the default benchmark_cmd. The has_ben argument can also be removed now from those test running functions. Co-developed-by: Fenghua Yu <[email protected]> Signed-off-by: Fenghua Yu <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Improve parameter consistency in fill_bufIlpo Järvinen1-25/+24
fill_buf's arguments can be improved in multiple ways: - Multiple functions in fill_buf have start_ptr as one of their argument which is a bit long and the extra "start" is pretty obvious when it comes to pointers. - Some of the functions take end_ptr and others size_t to indicate the end of the buffer. - Some arguments meaning buffer size are called just 's' - mem_flush() takes void * but immediately converts it to char * Cleanup the parameters to make things simpler and more consistent: - Rename start_ptr to simply buf as it's shorter. - Replace end_ptr and s parameters with buf_size and only calculate end_ptr in the functions that truly use it. - Make mem_flush() parameters to follow the same convention as the other functions in fill_buf. - convert mem_flush() char * to unsigned char *. While at it, fix also a typo in a comment. Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Remove unnecessary startptr global from fill_bufIlpo Järvinen1-4/+1
fill_buf stores buffer pointer into global variable startptr that is only used in fill_cache(). Remove startptr as global variable, the local variable in fill_cache() is enough to keep the pointer. Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-07-25selftests/resctrl: Remove "malloc_and_init_memory" param from run_fill_buf()Ilpo Järvinen5-43/+19
run_fill_buf()'s malloc_and_init_memory parameter is always 1. There's also duplicated memory init code for malloc_and_init_memory == 0 case in fill_buf() which is unused. Remove the malloc_and_init_memory parameter and the duplicated mem init code. While at it, fix also a typo in run_fill_buf() prototype's argument. Co-developed-by: Fenghua Yu <[email protected]> Signed-off-by: Fenghua Yu <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Reinette Chatre <[email protected]> Tested-by: Babu Moger <[email protected]> Tested-by: Shaopeng Tan (Fujitsu) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>