From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- tools/perf/util/print-events.c | 406 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 406 insertions(+) create mode 100644 tools/perf/util/print-events.c (limited to 'tools/perf/util/print-events.c') diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c new file mode 100644 index 000000000..2646ae18d --- /dev/null +++ b/tools/perf/util/print-events.c @@ -0,0 +1,406 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "build-id.h" +#include "debug.h" +#include "evsel.h" +#include "metricgroup.h" +#include "parse-events.h" +#include "pmu.h" +#include "print-events.h" +#include "probe-file.h" +#include "string2.h" +#include "strlist.h" +#include "tracepoint.h" +#include "pfm.h" +#include "pmu-hybrid.h" + +#define MAX_NAME_LEN 100 + +/** Strings corresponding to enum perf_type_id. */ +static const char * const event_type_descriptors[] = { + "Hardware event", + "Software event", + "Tracepoint event", + "Hardware cache event", + "Raw hardware event descriptor", + "Hardware breakpoint", +}; + +static const struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = { + [PERF_TOOL_DURATION_TIME] = { + .symbol = "duration_time", + .alias = "", + }, + [PERF_TOOL_USER_TIME] = { + .symbol = "user_time", + .alias = "", + }, + [PERF_TOOL_SYSTEM_TIME] = { + .symbol = "system_time", + .alias = "", + }, +}; + +/* + * Print the events from /tracing/events + */ +void print_tracepoint_events(const struct print_callbacks *print_cb, void *print_state) +{ + struct dirent **sys_namelist = NULL; + int sys_items = tracing_events__scandir_alphasort(&sys_namelist); + + for (int i = 0; i < sys_items; i++) { + struct dirent *sys_dirent = sys_namelist[i]; + struct dirent **evt_namelist = NULL; + char *dir_path; + int evt_items; + + if (sys_dirent->d_type != DT_DIR || + !strcmp(sys_dirent->d_name, ".") || + !strcmp(sys_dirent->d_name, "..")) + continue; + + dir_path = get_events_file(sys_dirent->d_name); + if (!dir_path) + continue; + + evt_items = scandir(dir_path, &evt_namelist, NULL, alphasort); + for (int j = 0; j < evt_items; j++) { + struct dirent *evt_dirent = evt_namelist[j]; + char evt_path[MAXPATHLEN]; + + if (evt_dirent->d_type != DT_DIR || + !strcmp(evt_dirent->d_name, ".") || + !strcmp(evt_dirent->d_name, "..")) + continue; + + if (tp_event_has_id(dir_path, evt_dirent) != 0) + continue; + + snprintf(evt_path, MAXPATHLEN, "%s:%s", + sys_dirent->d_name, evt_dirent->d_name); + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + evt_path, + /*event_alias=*/NULL, + /*scale_unit=*/NULL, + /*deprecated=*/false, + "Tracepoint event", + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + } + free(dir_path); + free(evt_namelist); + } + free(sys_namelist); +} + +void print_sdt_events(const struct print_callbacks *print_cb, void *print_state) +{ + struct strlist *bidlist, *sdtlist; + struct str_node *bid_nd, *sdt_name, *next_sdt_name; + const char *last_sdt_name = NULL; + + /* + * The implicitly sorted sdtlist will hold the tracepoint name followed + * by @. If the tracepoint name is unique (determined by + * looking at the adjacent nodes) the @ is dropped otherwise + * the executable path and buildid are added to the name. + */ + sdtlist = strlist__new(NULL, NULL); + if (!sdtlist) { + pr_debug("Failed to allocate new strlist for SDT\n"); + return; + } + bidlist = build_id_cache__list_all(true); + if (!bidlist) { + pr_debug("Failed to get buildids: %d\n", errno); + return; + } + strlist__for_each_entry(bid_nd, bidlist) { + struct probe_cache *pcache; + struct probe_cache_entry *ent; + + pcache = probe_cache__new(bid_nd->s, NULL); + if (!pcache) + continue; + list_for_each_entry(ent, &pcache->entries, node) { + char buf[1024]; + + snprintf(buf, sizeof(buf), "%s:%s@%s", + ent->pev.group, ent->pev.event, bid_nd->s); + strlist__add(sdtlist, buf); + } + probe_cache__delete(pcache); + } + strlist__delete(bidlist); + + strlist__for_each_entry(sdt_name, sdtlist) { + bool show_detail = false; + char *bid = strchr(sdt_name->s, '@'); + char *evt_name = NULL; + + if (bid) + *(bid++) = '\0'; + + if (last_sdt_name && !strcmp(last_sdt_name, sdt_name->s)) { + show_detail = true; + } else { + next_sdt_name = strlist__next(sdt_name); + if (next_sdt_name) { + char *bid2 = strchr(next_sdt_name->s, '@'); + + if (bid2) + *bid2 = '\0'; + if (strcmp(sdt_name->s, next_sdt_name->s) == 0) + show_detail = true; + if (bid2) + *bid2 = '@'; + } + } + last_sdt_name = sdt_name->s; + + if (show_detail) { + char *path = build_id_cache__origname(bid); + + if (path) { + if (asprintf(&evt_name, "%s@%s(%.12s)", sdt_name->s, path, bid) < 0) + evt_name = NULL; + free(path); + } + } + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + evt_name ?: sdt_name->s, + /*event_alias=*/NULL, + /*deprecated=*/false, + /*scale_unit=*/NULL, + "SDT event", + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + + free(evt_name); + } + strlist__delete(sdtlist); +} + +int print_hwcache_events(const struct print_callbacks *print_cb, void *print_state) +{ + struct strlist *evt_name_list = strlist__new(NULL, NULL); + struct str_node *nd; + + if (!evt_name_list) { + pr_debug("Failed to allocate new strlist for hwcache events\n"); + return -ENOMEM; + } + for (int type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { + for (int op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { + /* skip invalid cache type */ + if (!evsel__is_cache_op_valid(type, op)) + continue; + + for (int i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { + struct perf_pmu *pmu = NULL; + char name[64]; + + __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name)); + if (!perf_pmu__has_hybrid()) { + if (is_event_supported(PERF_TYPE_HW_CACHE, + type | (op << 8) | (i << 16))) + strlist__add(evt_name_list, name); + continue; + } + perf_pmu__for_each_hybrid_pmu(pmu) { + if (is_event_supported(PERF_TYPE_HW_CACHE, + type | (op << 8) | (i << 16) | + ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT))) { + char new_name[128]; + snprintf(new_name, sizeof(new_name), + "%s/%s/", pmu->name, name); + strlist__add(evt_name_list, new_name); + } + } + } + } + } + + strlist__for_each_entry(nd, evt_name_list) { + print_cb->print_event(print_state, + "cache", + /*pmu_name=*/NULL, + nd->s, + /*event_alias=*/NULL, + /*scale_unit=*/NULL, + /*deprecated=*/false, + event_type_descriptors[PERF_TYPE_HW_CACHE], + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + } + strlist__delete(evt_name_list); + return 0; +} + +void print_tool_events(const struct print_callbacks *print_cb, void *print_state) +{ + // Start at 1 because the first enum entry means no tool event. + for (int i = 1; i < PERF_TOOL_MAX; ++i) { + print_cb->print_event(print_state, + "tool", + /*pmu_name=*/NULL, + event_symbols_tool[i].symbol, + event_symbols_tool[i].alias, + /*scale_unit=*/NULL, + /*deprecated=*/false, + "Tool event", + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + } +} + +void print_symbol_events(const struct print_callbacks *print_cb, void *print_state, + unsigned int type, const struct event_symbol *syms, + unsigned int max) +{ + struct strlist *evt_name_list = strlist__new(NULL, NULL); + struct str_node *nd; + + if (!evt_name_list) { + pr_debug("Failed to allocate new strlist for symbol events\n"); + return; + } + for (unsigned int i = 0; i < max; i++) { + /* + * New attr.config still not supported here, the latest + * example was PERF_COUNT_SW_CGROUP_SWITCHES + */ + if (syms[i].symbol == NULL) + continue; + + if (!is_event_supported(type, i)) + continue; + + if (strlen(syms[i].alias)) { + char name[MAX_NAME_LEN]; + + snprintf(name, MAX_NAME_LEN, "%s OR %s", syms[i].symbol, syms[i].alias); + strlist__add(evt_name_list, name); + } else + strlist__add(evt_name_list, syms[i].symbol); + } + + strlist__for_each_entry(nd, evt_name_list) { + char *alias = strstr(nd->s, " OR "); + + if (alias) { + *alias = '\0'; + alias += 4; + } + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + nd->s, + alias, + /*scale_unit=*/NULL, + /*deprecated=*/false, + event_type_descriptors[type], + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + } + strlist__delete(evt_name_list); +} + +/* + * Print the help text for the event symbols: + */ +void print_events(const struct print_callbacks *print_cb, void *print_state) +{ + print_symbol_events(print_cb, print_state, PERF_TYPE_HARDWARE, + event_symbols_hw, PERF_COUNT_HW_MAX); + print_symbol_events(print_cb, print_state, PERF_TYPE_SOFTWARE, + event_symbols_sw, PERF_COUNT_SW_MAX); + + print_tool_events(print_cb, print_state); + + print_hwcache_events(print_cb, print_state); + + print_pmu_events(print_cb, print_state); + + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + "rNNN", + /*event_alias=*/NULL, + /*scale_unit=*/NULL, + /*deprecated=*/false, + event_type_descriptors[PERF_TYPE_RAW], + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + "cpu/t1=v1[,t2=v2,t3 ...]/modifier", + /*event_alias=*/NULL, + /*scale_unit=*/NULL, + /*deprecated=*/false, + event_type_descriptors[PERF_TYPE_RAW], + "(see 'man perf-list' on how to encode it)", + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + + print_cb->print_event(print_state, + /*topic=*/NULL, + /*pmu_name=*/NULL, + "mem:[/len][:access]", + /*scale_unit=*/NULL, + /*event_alias=*/NULL, + /*deprecated=*/false, + event_type_descriptors[PERF_TYPE_BREAKPOINT], + /*desc=*/NULL, + /*long_desc=*/NULL, + /*encoding_desc=*/NULL, + /*metric_name=*/NULL, + /*metric_expr=*/NULL); + + print_tracepoint_events(print_cb, print_state); + + print_sdt_events(print_cb, print_state); + + metricgroup__print(print_cb, print_state); + + print_libpfm_events(print_cb, print_state); +} -- cgit v1.2.3