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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /tools/thermal/tmon/tmon.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to '')
-rw-r--r--tools/thermal/tmon/tmon.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/tools/thermal/tmon/tmon.c b/tools/thermal/tmon/tmon.c
new file mode 100644
index 000000000..7eb3216a2
--- /dev/null
+++ b/tools/thermal/tmon/tmon.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * tmon.c Thermal Monitor (TMON) main function and entry point
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ */
+
+#include <getopt.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ncurses.h>
+#include <ctype.h>
+#include <time.h>
+#include <signal.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <pthread.h>
+#include <math.h>
+#include <stdarg.h>
+#include <syslog.h>
+
+#include "tmon.h"
+
+unsigned long ticktime = 1; /* seconds */
+unsigned long no_control = 1; /* monitoring only or use cooling device for
+ * temperature control.
+ */
+double time_elapsed = 0.0;
+unsigned long target_temp_user = 65; /* can be select by tui later */
+int dialogue_on;
+int tmon_exit;
+static short daemon_mode;
+static int logging; /* for recording thermal data to a file */
+static int debug_on;
+FILE *tmon_log;
+/*cooling device used for the PID controller */
+char ctrl_cdev[CDEV_NAME_SIZE] = "None";
+int target_thermal_zone; /* user selected target zone instance */
+static void start_daemon_mode(void);
+
+pthread_t event_tid;
+pthread_mutex_t input_lock;
+void usage(void)
+{
+ printf("Usage: tmon [OPTION...]\n");
+ printf(" -c, --control cooling device in control\n");
+ printf(" -d, --daemon run as daemon, no TUI\n");
+ printf(" -g, --debug debug message in syslog\n");
+ printf(" -h, --help show this help message\n");
+ printf(" -l, --log log data to /var/tmp/tmon.log\n");
+ printf(" -t, --time-interval sampling time interval, > 1 sec.\n");
+ printf(" -T, --target-temp initial target temperature\n");
+ printf(" -v, --version show version\n");
+ printf(" -z, --zone target thermal zone id\n");
+
+ exit(0);
+}
+
+void version(void)
+{
+ printf("TMON version %s\n", VERSION);
+ exit(EXIT_SUCCESS);
+}
+
+static void tmon_cleanup(void)
+{
+ syslog(LOG_INFO, "TMON exit cleanup\n");
+ fflush(stdout);
+ refresh();
+ if (tmon_log)
+ fclose(tmon_log);
+ if (event_tid) {
+ pthread_mutex_lock(&input_lock);
+ pthread_cancel(event_tid);
+ pthread_mutex_unlock(&input_lock);
+ pthread_mutex_destroy(&input_lock);
+ }
+ closelog();
+ /* relax control knobs, undo throttling */
+ set_ctrl_state(0);
+
+ keypad(stdscr, FALSE);
+ echo();
+ nocbreak();
+ close_windows();
+ endwin();
+ free_thermal_data();
+
+ exit(1);
+}
+
+static void tmon_sig_handler(int sig)
+{
+ syslog(LOG_INFO, "TMON caught signal %d\n", sig);
+ refresh();
+ switch (sig) {
+ case SIGTERM:
+ printf("sigterm, exit and clean up\n");
+ fflush(stdout);
+ break;
+ case SIGKILL:
+ printf("sigkill, exit and clean up\n");
+ fflush(stdout);
+ break;
+ case SIGINT:
+ printf("ctrl-c, exit and clean up\n");
+ fflush(stdout);
+ break;
+ default:
+ break;
+ }
+ tmon_exit = true;
+}
+
+static void start_syslog(void)
+{
+ if (debug_on)
+ setlogmask(LOG_UPTO(LOG_DEBUG));
+ else
+ setlogmask(LOG_UPTO(LOG_ERR));
+ openlog("tmon.log", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL0);
+ syslog(LOG_NOTICE, "TMON started by User %d", getuid());
+}
+
+static void prepare_logging(void)
+{
+ int i;
+ struct stat logstat;
+
+ if (!logging)
+ return;
+ /* open local data log file */
+ tmon_log = fopen(TMON_LOG_FILE, "w+");
+ if (!tmon_log) {
+ syslog(LOG_ERR, "failed to open log file %s\n", TMON_LOG_FILE);
+ return;
+ }
+
+ if (lstat(TMON_LOG_FILE, &logstat) < 0) {
+ syslog(LOG_ERR, "Unable to stat log file %s\n", TMON_LOG_FILE);
+ fclose(tmon_log);
+ tmon_log = NULL;
+ return;
+ }
+
+ /* The log file must be a regular file owned by us */
+ if (S_ISLNK(logstat.st_mode)) {
+ syslog(LOG_ERR, "Log file is a symlink. Will not log\n");
+ fclose(tmon_log);
+ tmon_log = NULL;
+ return;
+ }
+
+ if (logstat.st_uid != getuid()) {
+ syslog(LOG_ERR, "We don't own the log file. Not logging\n");
+ fclose(tmon_log);
+ tmon_log = NULL;
+ return;
+ }
+
+ fprintf(tmon_log, "#----------- THERMAL SYSTEM CONFIG -------------\n");
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ char binding_str[33]; /* size of long + 1 */
+ int j;
+
+ memset(binding_str, 0, sizeof(binding_str));
+ for (j = 0; j < 32; j++)
+ binding_str[j] = (ptdata.tzi[i].cdev_binding & (1 << j)) ?
+ '1' : '0';
+
+ fprintf(tmon_log, "#thermal zone %s%02d cdevs binding: %32s\n",
+ ptdata.tzi[i].type,
+ ptdata.tzi[i].instance,
+ binding_str);
+ for (j = 0; j < ptdata.tzi[i].nr_trip_pts; j++) {
+ fprintf(tmon_log, "#\tTP%02d type:%s, temp:%lu\n", j,
+ trip_type_name[ptdata.tzi[i].tp[j].type],
+ ptdata.tzi[i].tp[j].temp);
+ }
+ }
+
+ for (i = 0; i < ptdata.nr_cooling_dev; i++)
+ fprintf(tmon_log, "#cooling devices%02d: %s\n",
+ i, ptdata.cdi[i].type);
+
+ fprintf(tmon_log, "#---------- THERMAL DATA LOG STARTED -----------\n");
+ fprintf(tmon_log, "Samples TargetTemp ");
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ fprintf(tmon_log, "%s%d ", ptdata.tzi[i].type,
+ ptdata.tzi[i].instance);
+ }
+ for (i = 0; i < ptdata.nr_cooling_dev; i++)
+ fprintf(tmon_log, "%s%d ", ptdata.cdi[i].type,
+ ptdata.cdi[i].instance);
+
+ fprintf(tmon_log, "\n");
+}
+
+static struct option opts[] = {
+ { "control", 1, NULL, 'c' },
+ { "daemon", 0, NULL, 'd' },
+ { "time-interval", 1, NULL, 't' },
+ { "target-temp", 1, NULL, 'T' },
+ { "log", 0, NULL, 'l' },
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'v' },
+ { "debug", 0, NULL, 'g' },
+ { 0, 0, NULL, 0 }
+};
+
+int main(int argc, char **argv)
+{
+ int err = 0;
+ int id2 = 0, c;
+ double yk = 0.0, temp; /* controller output */
+ int target_tz_index;
+
+ if (geteuid() != 0) {
+ printf("TMON needs to be run as root\n");
+ exit(EXIT_FAILURE);
+ }
+
+ while ((c = getopt_long(argc, argv, "c:dlht:T:vgz:", opts, &id2)) != -1) {
+ switch (c) {
+ case 'c':
+ no_control = 0;
+ strncpy(ctrl_cdev, optarg, CDEV_NAME_SIZE);
+ break;
+ case 'd':
+ start_daemon_mode();
+ printf("Run TMON in daemon mode\n");
+ break;
+ case 't':
+ ticktime = strtod(optarg, NULL);
+ if (ticktime < 1)
+ ticktime = 1;
+ break;
+ case 'T':
+ temp = strtod(optarg, NULL);
+ if (temp < 0) {
+ fprintf(stderr, "error: temperature must be positive\n");
+ return 1;
+ }
+ target_temp_user = temp;
+ break;
+ case 'l':
+ printf("Logging data to /var/tmp/tmon.log\n");
+ logging = 1;
+ break;
+ case 'h':
+ usage();
+ break;
+ case 'v':
+ version();
+ break;
+ case 'g':
+ debug_on = 1;
+ break;
+ case 'z':
+ target_thermal_zone = strtod(optarg, NULL);
+ break;
+ default:
+ break;
+ }
+ }
+ if (pthread_mutex_init(&input_lock, NULL) != 0) {
+ fprintf(stderr, "\n mutex init failed, exit\n");
+ return 1;
+ }
+ start_syslog();
+ if (signal(SIGINT, tmon_sig_handler) == SIG_ERR)
+ syslog(LOG_DEBUG, "Cannot handle SIGINT\n");
+ if (signal(SIGTERM, tmon_sig_handler) == SIG_ERR)
+ syslog(LOG_DEBUG, "Cannot handle SIGTERM\n");
+
+ if (probe_thermal_sysfs()) {
+ pthread_mutex_destroy(&input_lock);
+ closelog();
+ return -1;
+ }
+ initialize_curses();
+ setup_windows();
+ signal(SIGWINCH, resize_handler);
+ show_title_bar();
+ show_sensors_w();
+ show_cooling_device();
+ update_thermal_data();
+ show_data_w();
+ prepare_logging();
+ init_thermal_controller();
+
+ nodelay(stdscr, TRUE);
+ err = pthread_create(&event_tid, NULL, &handle_tui_events, NULL);
+ if (err != 0) {
+ printf("\ncan't create thread :[%s]", strerror(err));
+ tmon_cleanup();
+ exit(EXIT_FAILURE);
+ }
+
+ /* validate range of user selected target zone, default to the first
+ * instance if out of range
+ */
+ target_tz_index = zone_instance_to_index(target_thermal_zone);
+ if (target_tz_index < 0) {
+ target_thermal_zone = ptdata.tzi[0].instance;
+ syslog(LOG_ERR, "target zone is not found, default to %d\n",
+ target_thermal_zone);
+ }
+ while (1) {
+ sleep(ticktime);
+ show_title_bar();
+ show_sensors_w();
+ update_thermal_data();
+ if (!dialogue_on) {
+ show_data_w();
+ show_cooling_device();
+ }
+ time_elapsed += ticktime;
+ controller_handler(trec[0].temp[target_tz_index] / 1000, &yk);
+ trec[0].pid_out_pct = yk;
+ if (!dialogue_on)
+ show_control_w();
+ if (tmon_exit)
+ break;
+ }
+ tmon_cleanup();
+ return 0;
+}
+
+static void start_daemon_mode(void)
+{
+ daemon_mode = 1;
+ /* fork */
+ pid_t sid, pid = fork();
+
+ if (pid < 0)
+ exit(EXIT_FAILURE);
+ else if (pid > 0)
+ /* kill parent */
+ exit(EXIT_SUCCESS);
+
+ /* disable TUI, it may not be necessary, but saves some resource */
+ disable_tui();
+
+ /* change the file mode mask */
+ umask(S_IWGRP | S_IWOTH);
+
+ /* new SID for the daemon process */
+ sid = setsid();
+ if (sid < 0)
+ exit(EXIT_FAILURE);
+
+ /* change working directory */
+ if ((chdir("/")) < 0)
+ exit(EXIT_FAILURE);
+
+ sleep(10);
+
+ close(STDIN_FILENO);
+ close(STDOUT_FILENO);
+ close(STDERR_FILENO);
+}