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[PATCH v4 0/4] iommufd: Add iommu hardware info reporting

by Yi Liu

iommufd gives userspace the capability to manipulate iommu subsytem. e.g. DMA map/unmap etc. In the near future, it will support iommu nested translation. Different platform vendors have different implementation for the nested translation. For example, Intel VT-d supports using guest I/O page table as the stage-1 translation table. This requires guest I/O page table be compatible with hardware IOMMU. So before set up nested translation, userspace needs to know the hardware iommu information to understand the nested translation requirements. This series reports the iommu hardware information for a given device which has been bound to iommufd. It is preparation work for userspace to allocate hwpt for given device. Like the nested translation support[1]. This series introduces an iommu op to report the iommu hardware info, and an ioctl IOMMU_GET_HW_INFO is added to report such hardware info to user. enum iommu_hw_info_type is defined to differentiate the iommu hardware info reported to user hence user can decode them. This series only adds the framework for iommu hw info reporting, the complete reporting path needs vendor specific definition and driver support. The full code is available in [1] as well. [1] https://github.com/yiliu1765/iommufd/tree/iommufd_nesting Change log: v4: - Rename ioctl to IOMMU_GET_HW_INFO and structure to iommu_hw_info - Move the iommufd_get_hw_info handler to main.c - Place iommu_hw_info prior to iommu_hwpt_alloc - Update the function namings accordingly - Update uapi kdocs v3: https://lore.kernel.org/linux-iommu/20230511143024.19542-1-yi.l.liu@intel.c… - Add r-b from Baolu - Rename IOMMU_HW_INFO_TYPE_DEFAULT to be IOMMU_HW_INFO_TYPE_NONE to better suit what it means - Let IOMMU_DEVICE_GET_HW_INFO succeed even the underlying iommu driver does not have driver-specific data to report per below remark. https://lore.kernel.org/kvm/ZAcwJSK%2F9UVI9LXu@nvidia.com/ v2: https://lore.kernel.org/linux-iommu/20230309075358.571567-1-yi.l.liu@intel.… - Drop patch 05 of v1 as it is already covered by other series - Rename the capability info to be iommu hardware info v1: https://lore.kernel.org/linux-iommu/20230209041642.9346-1-yi.l.liu@intel.co… Regards, Yi Liu Lu Baolu (1): iommu: Add new iommu op to get iommu hardware information Nicolin Chen (1): iommufd/selftest: Add coverage for IOMMU_GET_HW_INFO ioctl Yi Liu (2): iommu: Move dev_iommu_ops() to private header iommufd: Add IOMMU_GET_HW_INFO drivers/iommu/iommu-priv.h | 11 +++ drivers/iommu/iommufd/device.c | 1 + drivers/iommu/iommufd/iommufd_test.h | 9 +++ drivers/iommu/iommufd/main.c | 76 +++++++++++++++++++ drivers/iommu/iommufd/selftest.c | 16 ++++ include/linux/iommu.h | 27 ++++--- include/uapi/linux/iommufd.h | 44 +++++++++++ tools/testing/selftests/iommu/iommufd.c | 17 ++++- tools/testing/selftests/iommu/iommufd_utils.h | 26 +++++++ 9 files changed, 215 insertions(+), 12 deletions(-) -- 2.34.1

1 year, 11 months

5
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[PATCH bpf-next v4 0/2] bpf, xdp: Add tracepoint to xdp attaching failure

by Leon Hwang

This series introduces a new tracepoint in bpf_xdp_link_attach(). By this tracepoint, error message will be captured when error happens in dev_xdp_attach(), e.g. invalid attaching flags. v3 -> v4: * Fix selftest-crashed issue. Leon Hwang (2): bpf, xdp: Add tracepoint to xdp attaching failure selftests/bpf: Add testcase for xdp attaching failure tracepoint include/trace/events/xdp.h | 17 +++++ net/core/dev.c | 5 +- .../selftests/bpf/prog_tests/xdp_attach.c | 65 +++++++++++++++++++ .../bpf/progs/test_xdp_attach_fail.c | 54 +++++++++++++++ 4 files changed, 140 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_attach_fail.c base-commit: a33d978500acd8fb67efac9773ba0a8502c1ff06 -- 2.41.0

1 year, 11 months

3
6
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[PATCH net-next 0/4] mptcp: cleanup and improvements in the selftests

by Matthieu Baerts

This small series of 4 patches adds some improvements in MPTCP selftests: - Patch 1 reworks the detailed report of mptcp_join.sh selftest to better display what went well or wrong per test. - Patch 2 adds colours (if supported, forced and/or not disabled) in mptcp_join.sh selftest output to help spotting issues. - Patch 3 modifies an MPTCP selftest tool to interact with the path-manager via Netlink to always look for errors if any. This makes sure odd behaviours can be seen in the logs and errors can be caught later if needed. - Patch 4 removes stdout and stderr redirections to /dev/null when using pm_nl_ctl if no errors are expected in order to log odd behaviours. Signed-off-by: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- Matthieu Baerts (4): selftests: mptcp: join: rework detailed report selftests: mptcp: join: colored results selftests: mptcp: pm_nl_ctl: always look for errors selftests: mptcp: userspace_pm: unmute unexpected errors tools/testing/selftests/net/mptcp/mptcp_join.sh | 452 ++++++++++------------ tools/testing/selftests/net/mptcp/mptcp_lib.sh | 39 ++ tools/testing/selftests/net/mptcp/pm_netlink.sh | 6 +- tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 33 +- tools/testing/selftests/net/mptcp/userspace_pm.sh | 100 ++--- 5 files changed, 329 insertions(+), 301 deletions(-) --- base-commit: 64a37272fa5fb2d951ebd1a96fd42b045d64924c change-id: 20230728-upstream-net-next-20230728-mptcp-selftests-misc-0190cfd69ef9 Best regards, -- Matthieu Baerts <matthieu.baerts(a)tessares.net>

1 year, 11 months

2
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[RESEND PATCH v2] selftests:connector: Fix input argument error paths to skip

by Shuah Khan

Fix input argument parsing paths to skip from their error legs. This fix helps to avoid false test failure reports without running the test. Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> --- v2: Removed root check based on Anjali's review comments. Add netdev to RESEND tools/testing/selftests/connector/proc_filter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/connector/proc_filter.c b/tools/testing/selftests/connector/proc_filter.c index 4fe8c6763fd8..4a825b997666 100644 --- a/tools/testing/selftests/connector/proc_filter.c +++ b/tools/testing/selftests/connector/proc_filter.c @@ -248,7 +248,7 @@ int main(int argc, char *argv[]) if (argc > 2) { printf("Expected 0(assume no-filter) or 1 argument(-f)\n"); - exit(1); + exit(KSFT_SKIP); } if (argc == 2) { @@ -256,7 +256,7 @@ int main(int argc, char *argv[]) filter = 1; } else { printf("Valid option : -f (for filter feature)\n"); - exit(1); + exit(KSFT_SKIP); } } -- 2.39.2

1 year, 11 months

4
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[PATCH -next] selftests: cgroup: Remove redundant if statements

by Li Zetao

There is a warning reported by coccinelle: ./tools/testing/selftests/cgroup/test_zswap.c:211:6-18: WARNING: Unsigned expression compared with zero: stored_pages < 0 The type of "stored_pages" is size_t, which always be an unsigned type, so it is impossible less than zero. Drop the if statements to silence the warning. Signed-off-by: Li Zetao <lizetao1(a)huawei.com> --- tools/testing/selftests/cgroup/test_zswap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c index 49def87a909b..dbad8d0cd090 100644 --- a/tools/testing/selftests/cgroup/test_zswap.c +++ b/tools/testing/selftests/cgroup/test_zswap.c @@ -208,8 +208,6 @@ static int test_no_kmem_bypass(const char *root) free(trigger_allocation); if (get_zswap_stored_pages(&stored_pages)) break; - if (stored_pages < 0) - break; /* If memory was pushed to zswap, verify it belongs to memcg */ if (stored_pages > stored_pages_threshold) { int zswapped = cg_read_key_long(test_group, "memory.stat", "zswapped "); -- 2.34.1

1 year, 11 months

2
1
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[PATCH 0/4] tools/nolibc: enable compiler warnings

by Thomas Weißschuh

To help the developers to avoid mistakes and keep the code smaller let's enable compiler warnings. Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Thomas Weißschuh (4): selftests/nolibc: drop unused test helpers selftests/nolibc: drop unused variables tools/nolibc: drop unused variables selftests/nolibc: enable -Wall compiler warnings tools/include/nolibc/sys.h | 1 - tools/testing/selftests/nolibc/Makefile | 2 +- tools/testing/selftests/nolibc/nolibc-test.c | 103 --------------------------- 3 files changed, 1 insertion(+), 105 deletions(-) --- base-commit: dfef4fc45d5713eb23d87f0863aff9c33bd4bfaf change-id: 20230731-nolibc-warnings-c6e47284ac03 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

1 year, 11 months

3
15
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[PATCH next 0/3] Connector/proc_filter test fixes

by Shuah Khan

This 3 patch series consists of fixes to proc_filter test found during linun-next testing. The first patch fixes the LKFT reported compile error, second one adds .gitignore and the third fixes error paths to skip instead of fail (root check, and argument checks) Shuah Khan (3): selftests:connector: Fix Makefile to include KHDR_INCLUDES selftests:connector: Add .gitignore and poupulate it with test selftests:connector: Add root check and fix arg error paths to skip tools/testing/selftests/connector/.gitignore | 1 + tools/testing/selftests/connector/Makefile | 2 +- tools/testing/selftests/connector/proc_filter.c | 9 +++++++-- 3 files changed, 9 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/connector/.gitignore -- 2.39.2

1 year, 11 months

3
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[PATCH v2 net-next 0/5] selftests: openvswitch: add flow programming cases

by Aaron Conole

The openvswitch selftests currently contain a few cases for managing the datapath, which includes creating datapath instances, adding interfaces, and doing some basic feature / upcall tests. This is useful to validate the control path. Add the ability to program some of the more common flows with actions. This can be improved overtime to include regression testing, etc. Changes from original: 1. Fix issue when parsing ipv6 in the NAT action 2. Fix issue calculating length during ctact parsing 3. Fix error message when invalid bridge is passed 4. Fold in Adrian's patch to support key masks Aaron Conole (4): selftests: openvswitch: add an initial flow programming case selftests: openvswitch: add a test for ipv4 forwarding selftests: openvswitch: add basic ct test case parsing selftests: openvswitch: add ct-nat test case with ipv4 Adrian Moreno (1): selftests: openvswitch: support key masks .../selftests/net/openvswitch/openvswitch.sh | 223 +++++++ .../selftests/net/openvswitch/ovs-dpctl.py | 601 +++++++++++++++++- 2 files changed, 800 insertions(+), 24 deletions(-) -- 2.40.1

1 year, 11 months

3
11
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[bug report] selftest: Add test for SO_INCOMING_CPU.

by Dan Carpenter

Hello Kuniyuki Iwashima, The patch 6df96146b202: "selftest: Add test for SO_INCOMING_CPU." from Oct 21, 2022 (linux-next), leads to the following Smatch static checker warning: ./tools/testing/selftests/net/so_incoming_cpu.c:163 create_clients() error: uninitialized symbol 'ret'. ./tools/testing/selftests/net/so_incoming_cpu.c 146 void create_clients(struct __test_metadata *_metadata, 147 FIXTURE_DATA(so_incoming_cpu) *self) 148 { 149 cpu_set_t cpu_set; 150 int i, j, fd, ret; 151 152 for (i = 0; i < NR_SERVER; i++) { 153 CPU_ZERO(&cpu_set); 154 155 CPU_SET(i, &cpu_set); 156 ASSERT_EQ(CPU_COUNT(&cpu_set), 1); 157 ASSERT_NE(CPU_ISSET(i, &cpu_set), 0); 158 159 /* Make sure SYN will be processed on the i-th CPU 160 * and finally distributed to the i-th listener. 161 */ 162 sched_setaffinity(0, sizeof(cpu_set), &cpu_set); Presumabley ret = sched_setaffinity() was intended. --> 163 ASSERT_EQ(ret, 0); 164 165 for (j = 0; j < CLIENT_PER_SERVER; j++) { 166 fd = socket(AF_INET, SOCK_STREAM, 0); 167 ASSERT_NE(fd, -1); 168 169 ret = connect(fd, &self->addr, self->addrlen); 170 ASSERT_EQ(ret, 0); 171 172 close(fd); 173 } 174 } 175 } regards, dan carpenter

1 year, 11 months

2
1
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[PATCH v3 0/2] Unify uapi bitsperlong.h

by Tiezhu Yang

v3: -- Check the definition of __BITS_PER_LONG first at the beginning of uapi/asm-generic/bitsperlong.h v2: -- Check __CHAR_BIT__ and __SIZEOF_LONG__ rather than __aarch64__, __riscv, __loongarch__, thanks Ruoyao -- Update the code comment and commit message v1: -- Rebase on 6.4-rc6 -- Only unify uapi bitsperlong.h for arm64, riscv and loongarch -- Remove uapi bitsperlong.h of hexagon and microblaze in a new patch Here is the RFC patch: https://lore.kernel.org/linux-arch/1683615903-10862-1-git-send-email-yangti… Tiezhu Yang (2): asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch tools arch: Remove uapi bitsperlong.h of hexagon and microblaze arch/arm64/include/uapi/asm/bitsperlong.h | 24 ------------------- arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- arch/riscv/include/uapi/asm/bitsperlong.h | 14 ----------- include/uapi/asm-generic/bitsperlong.h | 13 ++++++++++- tools/arch/arm64/include/uapi/asm/bitsperlong.h | 24 ------------------- tools/arch/hexagon/include/uapi/asm/bitsperlong.h | 27 ---------------------- .../arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- .../arch/microblaze/include/uapi/asm/bitsperlong.h | 2 -- tools/arch/riscv/include/uapi/asm/bitsperlong.h | 14 ----------- tools/include/uapi/asm-generic/bitsperlong.h | 14 ++++++++++- tools/include/uapi/asm/bitsperlong.h | 6 ----- 11 files changed, 25 insertions(+), 131 deletions(-) delete mode 100644 arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 arch/riscv/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/hexagon/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/microblaze/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/riscv/include/uapi/asm/bitsperlong.h -- 2.1.0

1 year, 11 months

4
14
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