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2020-04-05Merge tag 'perf-urgent-2020-04-05' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more perf updates from Thomas Gleixner: "Perf updates all over the place: core: - Support for cgroup tracking in samples to allow cgroup based analysis tools: - Support for cgroup analysis - Commandline option and hotkey for perf top to change the sort order - A set of fixes all over the place - Various build system related improvements - Updates of the X86 pmu event JSON data - Documentation updates" * tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits) perf python: Fix clang detection to strip out options passed in $CC perf tools: Support Python 3.8+ in Makefile perf script: Fix invalid read of directory entry after closedir() perf script report: Fix SEGFAULT when using DWARF mode perf script: add -S/--symbols documentation perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric perf events parser: Add missing Intel CPU events to parser perf script: Allow --symbol to accept hexadecimal addresses perf report/top TUI: Fix title line formatting perf top: Support hotkey to change sort order perf top: Support --group-sort-idx to change the sort order perf symbols: Fix arm64 gap between kernel start and module end perf build-test: Honour JOBS to override detection of number of cores perf script: Add --show-cgroup-events option perf top: Add --all-cgroups option perf record: Add --all-cgroups option perf record: Support synthesizing cgroup events perf report: Add 'cgroup' sort key perf cgroup: Maintain cgroup hierarchy perf tools: Basic support for CGROUP event ...
2020-04-04Merge tag 'perf-urgent-for-mingo-5.7-20200403' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo: perf python: Arnaldo Carvalho de Melo: - Fix clang detection to strip out options passed in $CC. build: He Zhe: - Normalize gcc parameter when generating arch errno table, fixing the build by removing options from $(CC). Sam Lunt: - Support Python 3.8+ in Makefile. perf report/top: Arnaldo Carvalho de Melo: - Fix title line formatting. perf script: Andreas Gerstmayr: - Fix SEGFAULT when using DWARF mode. - Fix invalid read of directory entry after closedir(), found with valgrind. Hagen Paul Pfeifer: - Introduce --deltatime option. Stephane Eranian: - Allow --symbol to accept hexadecimal addresses. Ian Rogers: - Add -S/--symbols documentation Namhyung Kim: - Add --show-cgroup-events option. perf python: Arnaldo Carvalho de Melo: - Include rwsem.c in the python binding, needed by the cgroups improvements. build-test: Arnaldo Carvalho de Melo: - Honour JOBS to override detection of number of cores perf top: Jin Yao: - Support --group-sort-idx to change the sort order - perf top: Support hotkey to change sort order perf pmu-events x86: Jin Yao: - Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric perf symbols arm64: Kemeng Shi: - Fix arm64 gap between kernel start and module end kernel perf subsystem: Namhyung Kim: - Add PERF_RECORD_CGROUP event and Add PERF_SAMPLE_CGROUP feature, to allow cgroup tracking, saving a link between cgroup path and its id number. perf cgroup: Namhyung Kim: - Maintain cgroup hierarchy. perf report: Namhyung Kim: - Add 'cgroup' sort key. perf record: Namhyung Kim: - Support synthesizing cgroup events for pre-existing cgroups. - Add --all-cgroups option Documentation: Tony Jones: - Update docs regarding kernel/user space unwinding. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-04-02tools headers UAPI: Update tools's copy of linux/perf_event.hNamhyung Kim
To get the changes in: 6546b19f95ac ("perf/core: Add PERF_SAMPLE_CGROUP feature") 96aaab686505 ("perf/core: Add PERF_RECORD_CGROUP event") This silences this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h This update is a prerequisite to adding support for the HW index of raw branch records. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: http://lore.kernel.org/lkml/20200325124536.2800725-4-namhyung@kernel.org [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextLinus Torvalds
Pull networking updates from David Miller: "Highlights: 1) Fix the iwlwifi regression, from Johannes Berg. 2) Support BSS coloring and 802.11 encapsulation offloading in hardware, from John Crispin. 3) Fix some potential Spectre issues in qtnfmac, from Sergey Matyukevich. 4) Add TTL decrement action to openvswitch, from Matteo Croce. 5) Allow paralleization through flow_action setup by not taking the RTNL mutex, from Vlad Buslov. 6) A lot of zero-length array to flexible-array conversions, from Gustavo A. R. Silva. 7) Align XDP statistics names across several drivers for consistency, from Lorenzo Bianconi. 8) Add various pieces of infrastructure for offloading conntrack, and make use of it in mlx5 driver, from Paul Blakey. 9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki. 10) Lots of parallelization improvements during configuration changes in mlxsw driver, from Ido Schimmel. 11) Add support to devlink for generic packet traps, which report packets dropped during ACL processing. And use them in mlxsw driver. From Jiri Pirko. 12) Support bcmgenet on ACPI, from Jeremy Linton. 13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei Starovoitov, and your's truly. 14) Support XDP meta-data in virtio_net, from Yuya Kusakabe. 15) Fix sysfs permissions when network devices change namespaces, from Christian Brauner. 16) Add a flags element to ethtool_ops so that drivers can more simply indicate which coalescing parameters they actually support, and therefore the generic layer can validate the user's ethtool request. Use this in all drivers, from Jakub Kicinski. 17) Offload FIFO qdisc in mlxsw, from Petr Machata. 18) Support UDP sockets in sockmap, from Lorenz Bauer. 19) Fix stretch ACK bugs in several TCP congestion control modules, from Pengcheng Yang. 20) Support virtual functiosn in octeontx2 driver, from Tomasz Duszynski. 21) Add region operations for devlink and use it in ice driver to dump NVM contents, from Jacob Keller. 22) Add support for hw offload of MACSEC, from Antoine Tenart. 23) Add support for BPF programs that can be attached to LSM hooks, from KP Singh. 24) Support for multiple paths, path managers, and counters in MPTCP. From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti, and others. 25) More progress on adding the netlink interface to ethtool, from Michal Kubecek" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits) net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline cxgb4/chcr: nic-tls stats in ethtool net: dsa: fix oops while probing Marvell DSA switches net/bpfilter: remove superfluous testing message net: macb: Fix handling of fixed-link node net: dsa: ksz: Select KSZ protocol tag netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write net: stmmac: add EHL 2.5Gbps PCI info and PCI ID net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID net: stmmac: create dwmac-intel.c to contain all Intel platform net: dsa: bcm_sf2: Support specifying VLAN tag egress rule net: dsa: bcm_sf2: Add support for matching VLAN TCI net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT net: dsa: bcm_sf2: Disable learning for ASP port net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge net: dsa: b53: Prevent tagged VLAN on port 7 for 7278 net: dsa: b53: Restore VLAN entries upon (re)configuration net: dsa: bcm_sf2: Fix overflow checks hv_netvsc: Remove unnecessary round_up for recv_completion_cnt ...
2020-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30Merge tag 'x86-entry-2020-03-30' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 entry code updates from Thomas Gleixner: - Convert the 32bit syscalls to be pt_regs based which removes the requirement to push all 6 potential arguments onto the stack and consolidates the interface with the 64bit variant - The first small portion of the exception and syscall related entry code consolidation which aims to address the recently discovered issues vs. RCU, int3, NMI and some other exceptions which can interrupt any context. The bulk of the changes is still work in progress and aimed for 5.8. - A few lockdep namespace cleanups which have been applied into this branch to keep the prerequisites for the ongoing work confined. * tag 'x86-entry-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits) x86/entry: Fix build error x86 with !CONFIG_POSIX_TIMERS lockdep: Rename trace_{hard,soft}{irq_context,irqs_enabled}() lockdep: Rename trace_softirqs_{on,off}() lockdep: Rename trace_hardirq_{enter,exit}() x86/entry: Rename ___preempt_schedule x86: Remove unneeded includes x86/entry: Drop asmlinkage from syscalls x86/entry/32: Enable pt_regs based syscalls x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments x86/entry/32: Rename 32-bit specific syscalls x86/entry/32: Clean up syscall_32.tbl x86/entry: Remove ABI prefixes from functions in syscall tables x86/entry/64: Add __SYSCALL_COMMON() x86/entry: Remove syscall qualifier support x86/entry/64: Remove ptregs qualifier from syscall table x86/entry: Move max syscall number calculation to syscallhdr.sh x86/entry/64: Split X32 syscall table into its own file x86/entry/64: Move sys_ni_syscall stub to common.c x86/entry/64: Use syscall wrappers for x32_rt_sigreturn x86/entry: Refactor SYS_NI macros ...
2020-03-30libbpf: Add support for bpf_link-based cgroup attachmentAndrii Nakryiko
Add bpf_program__attach_cgroup(), which uses BPF_LINK_CREATE subcommand to create an FD-based kernel bpf_link. Also add low-level bpf_link_create() API. If expected_attach_type is not specified explicitly with bpf_program__set_expected_attach_type(), libbpf will try to determine proper attach type from BPF program's section definition. Also add support for bpf_link's underlying BPF program replacement: - unconditional through high-level bpf_link__update_program() API; - cmpxchg-like with specifying expected current BPF program through low-level bpf_link_update() API. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200330030001.2312810-4-andriin@fb.com
2020-03-30bpf: Implement bpf_link-based cgroup BPF program attachmentAndrii Nakryiko
Implement new sub-command to attach cgroup BPF programs and return FD-based bpf_link back on success. bpf_link, once attached to cgroup, cannot be replaced, except by owner having its FD. Cgroup bpf_link supports only BPF_F_ALLOW_MULTI semantics. Both link-based and prog-based BPF_F_ALLOW_MULTI attachments can be freely intermixed. To prevent bpf_cgroup_link from keeping cgroup alive past the point when no BPF program can be executed, implement auto-detachment of link. When cgroup_bpf_release() is called, all attached bpf_links are forced to release cgroup refcounts, but they leave bpf_link otherwise active and allocated, as well as still owning underlying bpf_prog. This is because user-space might still have FDs open and active, so bpf_link as a user-referenced object can't be freed yet. Once last active FD is closed, bpf_link will be freed and underlying bpf_prog refcount will be dropped. But cgroup refcount won't be touched, because cgroup is released already. The inherent race between bpf_cgroup_link release (from closing last FD) and cgroup_bpf_release() is resolved by both operations taking cgroup_mutex. So the only additional check required is when bpf_cgroup_link attempts to detach itself from cgroup. At that time we need to check whether there is still cgroup associated with that link. And if not, exit with success, because bpf_cgroup_link was already successfully detached. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Roman Gushchin <guro@fb.com> Link: https://lore.kernel.org/bpf/20200330030001.2312810-2-andriin@fb.com
2020-03-30Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The main changes in this cycle were: Kernel side changes: - A couple of x86/cpu cleanups and changes were grandfathered in due to patch dependencies. These clean up the set of CPU model/family matching macros with a consistent namespace and C99 initializer style. - A bunch of updates to various low level PMU drivers: * AMD Family 19h L3 uncore PMU * Intel Tiger Lake uncore support * misc fixes to LBR TOS sampling - optprobe fixes - perf/cgroup: optimize cgroup event sched-in processing - misc cleanups and fixes Tooling side changes are to: - perf {annotate,expr,record,report,stat,test} - perl scripting - libapi, libperf and libtraceevent - vendor events on Intel and S390, ARM cs-etm - Intel PT updates - Documentation changes and updates to core facilities - misc cleanups, fixes and other enhancements" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (89 commits) cpufreq/intel_pstate: Fix wrong macro conversion x86/cpu: Cleanup the now unused CPU match macros hwrng: via_rng: Convert to new X86 CPU match macros crypto: Convert to new CPU match macros ASoC: Intel: Convert to new X86 CPU match macros powercap/intel_rapl: Convert to new X86 CPU match macros PCI: intel-mid: Convert to new X86 CPU match macros mmc: sdhci-acpi: Convert to new X86 CPU match macros intel_idle: Convert to new X86 CPU match macros extcon: axp288: Convert to new X86 CPU match macros thermal: Convert to new X86 CPU match macros hwmon: Convert to new X86 CPU match macros platform/x86: Convert to new CPU match macros EDAC: Convert to new X86 CPU match macros cpufreq: Convert to new X86 CPU match macros ACPI: Convert to new X86 CPU match macros x86/platform: Convert to new CPU match macros x86/kernel: Convert to new CPU match macros x86/kvm: Convert to new CPU match macros x86/perf/events: Convert to new CPU match macros ...
2020-03-30bpf: Add socket assign supportJoe Stringer
Add support for TPROXY via a new bpf helper, bpf_sk_assign(). This helper requires the BPF program to discover the socket via a call to bpf_sk*_lookup_*(), then pass this socket to the new helper. The helper takes its own reference to the socket in addition to any existing reference that may or may not currently be obtained for the duration of BPF processing. For the destination socket to receive the traffic, the traffic must be routed towards that socket via local route. The simplest example route is below, but in practice you may want to route traffic more narrowly (eg by CIDR): $ ip route add local default dev lo This patch avoids trying to introduce an extra bit into the skb->sk, as that would require more invasive changes to all code interacting with the socket to ensure that the bit is handled correctly, such as all error-handling cases along the path from the helper in BPF through to the orphan path in the input. Instead, we opt to use the destructor variable to switch on the prefetch of the socket. Signed-off-by: Joe Stringer <joe@wand.net.nz> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20200329225342.16317-2-joe@wand.net.nz
2020-03-29net: macsec: add support for specifying offload upon link creationMark Starovoytov
This patch adds new netlink attribute to allow a user to (optionally) specify the desired offload mode immediately upon MACSec link creation. Separate iproute patch will be required to support this from user space. Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30bpf: Introduce BPF_PROG_TYPE_LSMKP Singh
Introduce types and configs for bpf programs that can be attached to LSM hooks. The programs can be enabled by the config option CONFIG_BPF_LSM. Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Brendan Jackman <jackmanb@google.com> Reviewed-by: Florent Revest <revest@google.com> Reviewed-by: Thomas Garnier <thgarnie@google.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Acked-by: James Morris <jamorris@linux.microsoft.com> Link: https://lore.kernel.org/bpf/20200329004356.27286-2-kpsingh@chromium.org
2020-03-28tools: Add EXPECTED_FD-related definitions in if_link.hToke Høiland-Jørgensen
This adds the IFLA_XDP_EXPECTED_FD netlink attribute definition and the XDP_FLAGS_REPLACE flag to if_link.h in tools/include. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/158515700747.92963.8615391897417388586.stgit@toke.dk
2020-03-27bpf: Enable bpf cgroup hooks to retrieve cgroup v2 and ancestor idDaniel Borkmann
Enable the bpf_get_current_cgroup_id() helper for connect(), sendmsg(), recvmsg() and bind-related hooks in order to retrieve the cgroup v2 context which can then be used as part of the key for BPF map lookups, for example. Given these hooks operate in process context 'current' is always valid and pointing to the app that is performing mentioned syscalls if it's subject to a v2 cgroup. Also with same motivation of commit 7723628101aa ("bpf: Introduce bpf_skb_ancestor_cgroup_id helper") enable retrieval of ancestor from current so the cgroup id can be used for policy lookups which can then forbid connect() / bind(), for example. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/d2a7ef42530ad299e3cbb245e6c12374b72145ef.1585323121.git.daniel@iogearbox.net
2020-03-27bpf: Add netns cookie and enable it for bpf cgroup hooksDaniel Borkmann
In Cilium we're mainly using BPF cgroup hooks today in order to implement kube-proxy free Kubernetes service translation for ClusterIP, NodePort (*), ExternalIP, and LoadBalancer as well as HostPort mapping [0] for all traffic between Cilium managed nodes. While this works in its current shape and avoids packet-level NAT for inter Cilium managed node traffic, there is one major limitation we're facing today, that is, lack of netns awareness. In Kubernetes, the concept of Pods (which hold one or multiple containers) has been built around network namespaces, so while we can use the global scope of attaching to root BPF cgroup hooks also to our advantage (e.g. for exposing NodePort ports on loopback addresses), we also have the need to differentiate between initial network namespaces and non-initial one. For example, ExternalIP services mandate that non-local service IPs are not to be translated from the host (initial) network namespace as one example. Right now, we have an ugly work-around in place where non-local service IPs for ExternalIP services are not xlated from connect() and friends BPF hooks but instead via less efficient packet-level NAT on the veth tc ingress hook for Pod traffic. On top of determining whether we're in initial or non-initial network namespace we also have a need for a socket-cookie like mechanism for network namespaces scope. Socket cookies have the nice property that they can be combined as part of the key structure e.g. for BPF LRU maps without having to worry that the cookie could be recycled. We are planning to use this for our sessionAffinity implementation for services. Therefore, add a new bpf_get_netns_cookie() helper which would resolve both use cases at once: bpf_get_netns_cookie(NULL) would provide the cookie for the initial network namespace while passing the context instead of NULL would provide the cookie from the application's network namespace. We're using a hole, so no size increase; the assignment happens only once. Therefore this allows for a comparison on initial namespace as well as regular cookie usage as we have today with socket cookies. We could later on enable this helper for other program types as well as we would see need. (*) Both externalTrafficPolicy={Local|Cluster} types [0] https://github.com/cilium/cilium/blob/master/bpf/bpf_sock.c Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/c47d2346982693a9cf9da0e12690453aded4c788.1585323121.git.daniel@iogearbox.net
2020-03-26net: macsec: add support for offloading to the MACAntoine Tenart
This patch adds a new MACsec offloading option, MACSEC_OFFLOAD_MAC, allowing a user to select a MAC as a provider for MACsec offloading operations. Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Overlapping header include additions in macsec.c A bug fix in 'net' overlapping with the removal of 'version' string in ena_netdev.c Overlapping test additions in selftests Makefile Overlapping PCI ID table adjustments in iwlwifi driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-24tools headers uapi: Update linux/in.h copyArnaldo Carvalho de Melo
To get the changes in: 267762538705 ("seg6: fix SRv6 L2 tunnels to use IANA-assigned protocol number") That ends up automatically adding the new IPPROTO_ETHERNET to the socket args beautifiers: $ tools/perf/trace/beauty/socket_ipproto.sh > before Apply this patch: $ tools/perf/trace/beauty/socket_ipproto.sh > after $ diff -u before after --- before 2020-03-19 11:48:36.876673819 -0300 +++ after 2020-03-19 11:49:00.148541377 -0300 @@ -6,6 +6,7 @@ [132] = "SCTP", [136] = "UDPLITE", [137] = "MPLS", + [143] = "ETHERNET", [17] = "UDP", [1] = "ICMP", [22] = "IDP", $ Addresses this tools/perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h' diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h Cc: David S. Miller <davem@davemloft.net> Cc: Paolo Lungaroni <paolo.lungaroni@cnit.it> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-21lockdep: Rename trace_{hard,soft}{irq_context,irqs_enabled}()Peter Zijlstra
Continue what commit: d820ac4c2fa8 ("locking: rename trace_softirq_[enter|exit] => lockdep_softirq_[enter|exit]") started, rename these to avoid confusing them with tracepoints. git grep -l "trace_\(soft\|hard\)\(irq_context\|irqs_enabled\)" | while read file; do sed -ie 's/trace_\(soft\|hard\)\(irq_context\|irqs_enabled\)/lockdep_\1\2/g' $file; done Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200320115859.178626842@infradead.org
2020-03-21lockdep: Rename trace_hardirq_{enter,exit}()Thomas Gleixner
Continue what commit: d820ac4c2fa8 ("locking: rename trace_softirq_[enter|exit] => lockdep_softirq_[enter|exit]") started, rename these to avoid confusing them with tracepoints. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200320115859.060481361@infradead.org
2020-03-19tools headers uapi: Update linux/in.h copyArnaldo Carvalho de Melo
To get the changes in: 267762538705 ("seg6: fix SRv6 L2 tunnels to use IANA-assigned protocol number") That ends up automatically adding the new IPPROTO_ETHERNET to the socket args beautifiers: $ tools/perf/trace/beauty/socket_ipproto.sh > before Apply this patch: $ tools/perf/trace/beauty/socket_ipproto.sh > after $ diff -u before after --- before 2020-03-19 11:48:36.876673819 -0300 +++ after 2020-03-19 11:49:00.148541377 -0300 @@ -6,6 +6,7 @@ [132] = "SCTP", [136] = "UDPLITE", [137] = "MPLS", + [143] = "ETHERNET", [17] = "UDP", [1] = "ICMP", [22] = "IDP", $ Addresses this tools/perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h' diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h Cc: David S. Miller <davem@davemloft.net> Cc: Paolo Lungaroni <paolo.lungaroni@cnit.it> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-19Merge branch 'perf/urgent' into perf/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-03-13tools/bpf: Move linux/types.h for selftests and bpftoolTobias Klauser
Commit fe4eb069edb7 ("bpftool: Use linux/types.h from source tree for profiler build") added a build dependency on tools/testing/selftests/bpf to tools/bpf/bpftool. This is suboptimal with respect to a possible stand-alone build of bpftool. Fix this by moving tools/testing/selftests/bpf/include/uapi/linux/types.h to tools/include/uapi/linux/types.h. This requires an adjustment in the include search path order for the tests in tools/testing/selftests/bpf so that tools/include/linux/types.h is selected when building host binaries and tools/include/uapi/linux/types.h is selected when building bpf binaries. Verified by compiling bpftool and the bpf selftests on x86_64 with this change. Fixes: fe4eb069edb7 ("bpftool: Use linux/types.h from source tree for profiler build") Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200313113105.6918-1-tklauser@distanz.ch
2020-03-12bpf: Add bpf_xdp_output() helperEelco Chaudron
Introduce new helper that reuses existing xdp perf_event output implementation, but can be called from raw_tracepoint programs that receive 'struct xdp_buff *' as a tracepoint argument. Signed-off-by: Eelco Chaudron <echaudro@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/158348514556.2239.11050972434793741444.stgit@xdp-tutorial
2020-03-12bpf: Added new helper bpf_get_ns_current_pid_tgidCarlos Neira
New bpf helper bpf_get_ns_current_pid_tgid, This helper will return pid and tgid from current task which namespace matches dev_t and inode number provided, this will allows us to instrument a process inside a container. Signed-off-by: Carlos Neira <cneirabustos@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20200304204157.58695-3-cneirabustos@gmail.com
2020-03-06tools: Fix off-by 1 relative directory includesIan Rogers
This is currently working due to extra include paths in the build. Committer testing: $ cd tools/include/uapi/asm/ Before this patch: $ ls -la ../../arch/x86/include/uapi/asm/errno.h ls: cannot access '../../arch/x86/include/uapi/asm/errno.h': No such file or directory $ After this patch; $ ls -la ../../../arch/x86/include/uapi/asm/errno.h -rw-rw-r--. 1 acme acme 31 Feb 20 12:42 ../../../arch/x86/include/uapi/asm/errno.h $ Check that that is still under tools/, i.e. hasn't escaped into the main kernel sources: $ cd ../../../arch/x86/include/uapi/asm/ $ pwd /home/acme/git/perf/tools/arch/x86/include/uapi/asm $ Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Igor Lubashev <ilubashe@akamai.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wei Li <liwei391@huawei.com> Link: http://lore.kernel.org/lkml/20200306071110.130202-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-05tools headers UAPI: Update tools's copy of linux/perf_event.hArnaldo Carvalho de Melo
To get the changes in: bbfd5e4fab63 ("perf/core: Add new branch sample type for HW index of raw branch records") This silences this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h This update is a prerequisite to adding support for the HW index of raw branch records. Acked-by: Kan Liang <kan.liang@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pavel Gerasimov <pavel.gerasimov@intel.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Stephane Eranian <eranian@google.com> Cc: Vitaly Slobodskoy <vitaly.slobodskoy@intel.com> Link: http://lore.kernel.org/lkml/20200304134902.GB12612@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-04bpf: Introduce BPF_MODIFY_RETURNKP Singh
When multiple programs are attached, each program receives the return value from the previous program on the stack and the last program provides the return value to the attached function. The fmod_ret bpf programs are run after the fentry programs and before the fexit programs. The original function is only called if all the fmod_ret programs return 0 to avoid any unintended side-effects. The success value, i.e. 0 is not currently configurable but can be made so where user-space can specify it at load time. For example: int func_to_be_attached(int a, int b) { <--- do_fentry do_fmod_ret: <update ret by calling fmod_ret> if (ret != 0) goto do_fexit; original_function: <side_effects_happen_here> } <--- do_fexit The fmod_ret program attached to this function can be defined as: SEC("fmod_ret/func_to_be_attached") int BPF_PROG(func_name, int a, int b, int ret) { // This will skip the original function logic. return 1; } The first fmod_ret program is passed 0 in its return argument. Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200304191853.1529-4-kpsingh@chromium.org
2020-03-04bpf: Switch BPF UAPI #define constants used from BPF program side to enumsAndrii Nakryiko
Switch BPF UAPI constants, previously defined as #define macro, to anonymous enum values. This preserves constants values and behavior in expressions, but has added advantaged of being captured as part of DWARF and, subsequently, BTF type info. Which, in turn, greatly improves usefulness of generated vmlinux.h for BPF applications, as it will not require BPF users to copy/paste various flags and constants, which are frequently used with BPF helpers. Only those constants that are used/useful from BPF program side are converted. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200303003233.3496043-2-andriin@fb.com
2020-03-03bpf: Sync uapi bpf.h to tools/Willem de Bruijn
sync tools/include/uapi/linux/bpf.h to match include/uapi/linux/bpf.h Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200303200503.226217-3-willemdebruijn.kernel@gmail.com
2020-02-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2020-02-21 The following pull-request contains BPF updates for your *net-next* tree. We've added 25 non-merge commits during the last 4 day(s) which contain a total of 33 files changed, 2433 insertions(+), 161 deletions(-). The main changes are: 1) Allow for adding TCP listen sockets into sock_map/hash so they can be used with reuseport BPF programs, from Jakub Sitnicki. 2) Add a new bpf_program__set_attach_target() helper for adding libbpf support to specify the tracepoint/function dynamically, from Eelco Chaudron. 3) Add bpf_read_branch_records() BPF helper which helps use cases like profile guided optimizations, from Daniel Xu. 4) Enable bpf_perf_event_read_value() in all tracing programs, from Song Liu. 5) Relax BTF mandatory check if only used for libbpf itself e.g. to process BTF defined maps, from Andrii Nakryiko. 6) Move BPF selftests -mcpu compilation attribute from 'probe' to 'v3' as it has been observed that former fails in envs with low memlock, from Yonghong Song. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Limit xt_hashlimit hash table size to avoid OOM or hung tasks, from Cong Wang. 2) Fix deadlock in xsk by publishing global consumer pointers when NAPI is finished, from Magnus Karlsson. 3) Set table field properly to RT_TABLE_COMPAT when necessary, from Jethro Beekman. 4) NLA_STRING attributes are not necessary NULL terminated, deal wiht that in IFLA_ALT_IFNAME. From Eric Dumazet. 5) Fix checksum handling in atlantic driver, from Dmitry Bezrukov. 6) Handle mtu==0 devices properly in wireguard, from Jason A. Donenfeld. 7) Fix several lockdep warnings in bonding, from Taehee Yoo. 8) Fix cls_flower port blocking, from Jason Baron. 9) Sanitize internal map names in libbpf, from Toke Høiland-Jørgensen. 10) Fix RDMA race in qede driver, from Michal Kalderon. 11) Fix several false lockdep warnings by adding conditions to list_for_each_entry_rcu(), from Madhuparna Bhowmik. 12) Fix sleep in atomic in mlx5 driver, from Huy Nguyen. 13) Fix potential deadlock in bpf_map_do_batch(), from Yonghong Song. 14) Hey, variables declared in switch statement before any case statements are not initialized. I learn something every day. Get rids of this stuff in several parts of the networking, from Kees Cook. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits) bnxt_en: Issue PCIe FLR in kdump kernel to cleanup pending DMAs. bnxt_en: Improve device shutdown method. net: netlink: cap max groups which will be considered in netlink_bind() net: thunderx: workaround BGX TX Underflow issue ionic: fix fw_status read net: disable BRIDGE_NETFILTER by default net: macb: Properly handle phylink on at91rm9200 s390/qeth: fix off-by-one in RX copybreak check s390/qeth: don't warn for napi with 0 budget s390/qeth: vnicc Fix EOPNOTSUPP precedence openvswitch: Distribute switch variables for initialization net: ip6_gre: Distribute switch variables for initialization net: core: Distribute switch variables for initialization udp: rehash on disconnect net/tls: Fix to avoid gettig invalid tls record bpf: Fix a potential deadlock with bpf_map_do_batch bpf: Do not grab the bucket spinlock by default on htab batch ops ice: Wait for VF to be reset/ready before configuration ice: Don't tell the OS that link is going down ice: Don't reject odd values of usecs set by user ...
2020-02-19selftests/bpf: Add bpf_read_branch_records() selftestDaniel Xu
Add a selftest to test: * default bpf_read_branch_records() behavior * BPF_F_GET_BRANCH_RECORDS_SIZE flag behavior * error path on non branch record perf events * using helper to write to stack * using helper to write to global On host with hardware counter support: # ./test_progs -t perf_branches #27/1 perf_branches_hw:OK #27/2 perf_branches_no_hw:OK #27 perf_branches:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED On host without hardware counter support (VM): # ./test_progs -t perf_branches #27/1 perf_branches_hw:OK #27/2 perf_branches_no_hw:OK #27 perf_branches:OK Summary: 1/2 PASSED, 1 SKIPPED, 0 FAILED Also sync tools/include/uapi/linux/bpf.h. Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200218030432.4600-3-dxu@dxuuu.xyz
2020-02-18bpf, uapi: Remove text about bpf_redirect_map() giving higher performanceToke Høiland-Jørgensen
The performance of bpf_redirect() is now roughly the same as that of bpf_redirect_map(). However, David Ahern pointed out that the header file has not been updated to reflect this, and still says that a significant performance increase is possible when using bpf_redirect_map(). Remove this text from the bpf_redirect_map() description, and reword the description in bpf_redirect() slightly. Also fix the 'Return' section of the bpf_redirect_map() documentation. Fixes: 1d233886dd90 ("xdp: Use bulking for non-map XDP_REDIRECT and consolidate code paths") Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200218130334.29889-1-toke@redhat.com
2020-02-12tools headers kvm: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from: 7de3f1423ff9 ("KVM: s390: Add new reset vcpu API") So far we're ignoring those arch specific ioctls, we need to revisit this at some time to have arch specific tables, etc: $ grep S390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-12tools include UAPI: Sync sound/asound.h copyArnaldo Carvalho de Melo
Picking the changes from: 46b770f720bd ("ALSA: uapi: Fix sparse warning") a103a3989993 ("ALSA: control: Fix incompatible protocol error") bd3eb4e87eb3 ("ALSA: ctl: bump protocol version up to v2.1.0") ff16351e3f30 ("ALSA: ctl: remove dimen member from elem_info structure") 542283566679 ("ALSA: ctl: remove unused macro for timestamping of elem_value") 7fd7d6c50451 ("ALSA: uapi: Fix typos and header inclusion in asound.h") 1cfaef961703 ("ALSA: bump uapi version numbers") 80fe7430c708 ("ALSA: add new 32-bit layout for snd_pcm_mmap_status/control") 07094ae6f952 ("ALSA: Avoid using timespec for struct snd_timer_tread") d9e5582c4bb2 ("ALSA: Avoid using timespec for struct snd_rawmidi_status") 3ddee7f88aaf ("ALSA: Avoid using timespec for struct snd_pcm_status") a4e7dd35b9da ("ALSA: Avoid using timespec for struct snd_ctl_elem_value") a07804cc7472 ("ALSA: Avoid using timespec for struct snd_timer_status") Which entails no changes in the tooling side. To silence this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h' diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Baolin Wang <baolin.wang@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-12tools headers UAPI: Sync asm-generic/mman-common.h with the kernelArnaldo Carvalho de Melo
To pick the changes from: d41938d2cbee ("mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use") No changes in tooling, just a rebuild as files needed got touched. This addresses the following perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h' diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-12tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the change in: cc662126b413 ("drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET") That don't result in any changes in tooling, just silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-12tools headers uapi: Sync linux/fscrypt.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes from: e933adde6f97 ("fscrypt: include <linux/ioctl.h> in UAPI header") 93edd392cad7 ("fscrypt: support passing a keyring key to FS_IOC_ADD_ENCRYPTION_KEY") That don't trigger any changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h' diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-11tools headers UAPI: Sync sched.h with the kernelArnaldo Carvalho de Melo
To get the changes in: 769071ac9f20 ("ns: Introduce Time Namespace") Silencing this tools/perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h' diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h Which enables 'perf trace' to decode the CLONE_NEWTIME bit in the 'flags' argument to the clone syscalls. Example of clone flags being decoded: [root@quaco ~]# perf trace -e clone* 0.000 qemu-system-x8/23923 clone(clone_flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, newsp: 0x7f0dad7f9870, parent_tidptr: 0x7f0dad7fa9d0, child_tidptr: 0x7f0dad7fa9d0, tls: 0x7f0dad7fa700) = 6806 (qemu-system-x86) ? qemu-system-x8/6806 ... [continued]: clone()) = 0 ^C[root@quaco ~]# At some point this should enable things like: # perf trace -e 'clone*/clone_flags&NEWTIME/' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrei Vagin <avagin@openvz.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-11tools headers UAPI: Sync prctl.h with the kernel sourcesArnaldo Carvalho de Melo
To get the changes in: 8d19f1c8e193 ("prctl: PR_{G,S}ET_IO_FLUSHER to support controlling memory reclaim") Which ends up having this effect in tooling, i.e. the addition of the support to those prctl's options: $ tools/perf/trace/beauty/prctl_option.sh > before $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ git diff diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h index 7da1b37b27aa..07b4f8131e36 100644 --- a/tools/include/uapi/linux/prctl.h +++ b/tools/include/uapi/linux/prctl.h @@ -234,4 +234,8 @@ struct prctl_mm_map { #define PR_GET_TAGGED_ADDR_CTRL 56 # define PR_TAGGED_ADDR_ENABLE (1UL << 0) +/* Control reclaim behavior when allocating memory */ +#define PR_SET_IO_FLUSHER 57 +#define PR_GET_IO_FLUSHER 58 + #endif /* _LINUX_PRCTL_H */ $ tools/perf/trace/beauty/prctl_option.sh > after $ diff -u before after --- before 2020-02-11 15:24:35.339289912 -0300 +++ after 2020-02-11 15:24:56.319711315 -0300 @@ -51,6 +51,8 @@ [54] = "PAC_RESET_KEYS", [55] = "SET_TAGGED_ADDR_CTRL", [56] = "GET_TAGGED_ADDR_CTRL", + [57] = "SET_IO_FLUSHER", + [58] = "GET_IO_FLUSHER", }; static const char *prctl_set_mm_options[] = { [1] = "START_CODE", $ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-11tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h ↵Arnaldo Carvalho de Melo
to pick up openat2 and pidfd_getfd fddb5d430ad9 ("open: introduce openat2(2) syscall") 9a2cef09c801 ("arch: wire up pidfd_getfd syscall") We also need to grab a copy of uapi/linux/openat2.h since it is now needed by fcntl.h, add it to tools/perf/check_headers.h. $ diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl --- tools/perf/arch/x86/entry/syscalls/syscall_64.tbl 2019-12-20 16:43:57.662429958 -0300 +++ arch/x86/entry/syscalls/syscall_64.tbl 2020-02-10 16:36:22.070012468 -0300 @@ -357,6 +357,8 @@ 433 common fspick __x64_sys_fspick 434 common pidfd_open __x64_sys_pidfd_open 435 common clone3 __x64_sys_clone3/ptregs +437 common openat2 __x64_sys_openat2 +438 common pidfd_getfd __x64_sys_pidfd_getfd # # x32-specific system call numbers start at 512 to avoid cache impact $ Update tools/'s copy of that file: $ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl See the result: $ diff -u /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c --- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2020-02-10 16:42:59.010636041 -0300 +++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2020-02-10 16:43:24.149958337 -0300 @@ -346,5 +346,7 @@ [433] = "fspick", [434] = "pidfd_open", [435] = "clone3", + [437] = "openat2", + [438] = "pidfd_getfd", }; -#define SYSCALLTBL_x86_64_MAX_ID 435 +#define SYSCALLTBL_x86_64_MAX_ID 438 $ Now one can use: perf trace -e openat2,pidfd_getfd To get just those syscalls or use in things like: perf trace -e open* To get all the open variant (open, openat, openat2, etc) or: perf trace pidfd* To get the pidfd syscalls. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sargun Dhillon <sargun@sargun.me> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-04bitops: more BITS_TO_* macrosYury Norov
Introduce BITS_TO_U64, BITS_TO_U32 and BITS_TO_BYTES as they are handy in the following patches (BITS_TO_U32 specifically). Reimplement tools/ version of the macros according to the kernel implementation. Also fix indentation for BITS_PER_TYPE definition. Link: http://lkml.kernel.org/r/20200102043031.30357-3-yury.norov@gmail.com Signed-off-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Amritha Nambiar <amritha.nambiar@intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Kees Cook <keescook@chromium.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miklos Szeredi <mszeredi@redhat.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: "Tobin C . Harding" <tobin@kernel.org> Cc: Vineet Gupta <vineet.gupta1@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextLinus Torvalds
Pull networking updates from David Miller: 1) Add WireGuard 2) Add HE and TWT support to ath11k driver, from John Crispin. 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca. 4) Add variable window congestion control to TIPC, from Jon Maloy. 5) Add BCM84881 PHY driver, from Russell King. 6) Start adding netlink support for ethtool operations, from Michal Kubecek. 7) Add XDP drop and TX action support to ena driver, from Sameeh Jubran. 8) Add new ipv4 route notifications so that mlxsw driver does not have to handle identical routes itself. From Ido Schimmel. 9) Add BPF dynamic program extensions, from Alexei Starovoitov. 10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes. 11) Add support for macsec HW offloading, from Antoine Tenart. 12) Add initial support for MPTCP protocol, from Christoph Paasch, Matthieu Baerts, Florian Westphal, Peter Krystad, and many others. 13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu Cherian, and others. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits) net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC udp: segment looped gso packets correctly netem: change mailing list qed: FW 8.42.2.0 debug features qed: rt init valid initialization changed qed: Debug feature: ilt and mdump qed: FW 8.42.2.0 Add fw overlay feature qed: FW 8.42.2.0 HSI changes qed: FW 8.42.2.0 iscsi/fcoe changes qed: Add abstraction for different hsi values per chip qed: FW 8.42.2.0 Additional ll2 type qed: Use dmae to write to widebus registers in fw_funcs qed: FW 8.42.2.0 Parser offsets modified qed: FW 8.42.2.0 Queue Manager changes qed: FW 8.42.2.0 Expose new registers and change windows qed: FW 8.42.2.0 Internal ram offsets modifications MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver Documentation: net: octeontx2: Add RVU HW and drivers overview octeontx2-pf: ethtool RSS config support octeontx2-pf: Add basic ethtool support ...
2020-01-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf-next 2020-01-22 The following pull-request contains BPF updates for your *net-next* tree. We've added 92 non-merge commits during the last 16 day(s) which contain a total of 320 files changed, 7532 insertions(+), 1448 deletions(-). The main changes are: 1) function by function verification and program extensions from Alexei. 2) massive cleanup of selftests/bpf from Toke and Andrii. 3) batched bpf map operations from Brian and Yonghong. 4) tcp congestion control in bpf from Martin. 5) bulking for non-map xdp_redirect form Toke. 6) bpf_send_signal_thread helper from Yonghong. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-22bpf: Sync uapi bpf.h to tools/Martin KaFai Lau
This patch sync uapi bpf.h to tools/. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200122233652.903348-1-kafai@fb.com
2020-01-22libbpf: Add support for program extensionsAlexei Starovoitov
Add minimal support for program extensions. bpf_object_open_opts() needs to be called with attach_prog_fd = target_prog_fd and BPF program extension needs to have in .c file section definition like SEC("freplace/func_to_be_replaced"). libbpf will search for "func_to_be_replaced" in the target_prog_fd's BTF and will pass it in attach_btf_id to the kernel. This approach works for tests, but more compex use case may need to request function name (and attach_btf_id that kernel sees) to be more dynamic. Such API will be added in future patches. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20200121005348.2769920-3-ast@kernel.org
2020-01-15tools/bpf: Sync uapi header bpf.hYonghong Song
sync uapi header include/uapi/linux/bpf.h to tools/include/uapi/linux/bpf.h Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200115184308.162644-7-brianvv@google.com
2020-01-15bpf: Add bpf_send_signal_thread() helperYonghong Song
Commit 8b401f9ed244 ("bpf: implement bpf_send_signal() helper") added helper bpf_send_signal() which permits bpf program to send a signal to the current process. The signal may be delivered to any threads in the process. We found a use case where sending the signal to the current thread is more preferable. - A bpf program will collect the stack trace and then send signal to the user application. - The user application will add some thread specific information to the just collected stack trace for later analysis. If bpf_send_signal() is used, user application will need to check whether the thread receiving the signal matches the thread collecting the stack by checking thread id. If not, it will need to send signal to another thread through pthread_kill(). This patch proposed a new helper bpf_send_signal_thread(), which sends the signal to the thread corresponding to the current kernel task. This way, user space is guaranteed that bpf_program execution context and user space signal handling context are the same thread. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200115035002.602336-1-yhs@fb.com
2020-01-14net: macsec: introduce the macsec_context structureAntoine Tenart
This patch introduces the macsec_context structure. It will be used in the kernel to exchange information between the common MACsec implementation (macsec.c) and the MACsec hardware offloading implementations. This structure contains pointers to MACsec specific structures which contain the actual MACsec configuration, and to the underlying device (phydev for now). Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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