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(). ... --- lib/kunit/executor.c | 226 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 lib/kunit/executor.c (limited to 'lib/kunit/executor.c') diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c new file mode 100644 index 000000000..74982b837 --- /dev/null +++ b/lib/kunit/executor.c @@ -0,0 +1,226 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include + +/* + * These symbols point to the .kunit_test_suites section and are defined in + * include/asm-generic/vmlinux.lds.h, and consequently must be extern. + */ +extern struct kunit_suite * const __kunit_suites_start[]; +extern struct kunit_suite * const __kunit_suites_end[]; + +#if IS_BUILTIN(CONFIG_KUNIT) + +static char *filter_glob_param; +static char *action_param; + +module_param_named(filter_glob, filter_glob_param, charp, 0); +MODULE_PARM_DESC(filter_glob, + "Filter which KUnit test suites/tests run at boot-time, e.g. list* or list*.*del_test"); +module_param_named(action, action_param, charp, 0); +MODULE_PARM_DESC(action, + "Changes KUnit executor behavior, valid values are:\n" + ": run the tests like normal\n" + "'list' to list test names instead of running them.\n"); + +/* glob_match() needs NULL terminated strings, so we need a copy of filter_glob_param. */ +struct kunit_test_filter { + char *suite_glob; + char *test_glob; +}; + +/* Split "suite_glob.test_glob" into two. Assumes filter_glob is not empty. */ +static void kunit_parse_filter_glob(struct kunit_test_filter *parsed, + const char *filter_glob) +{ + const int len = strlen(filter_glob); + const char *period = strchr(filter_glob, '.'); + + if (!period) { + parsed->suite_glob = kzalloc(len + 1, GFP_KERNEL); + parsed->test_glob = NULL; + strcpy(parsed->suite_glob, filter_glob); + return; + } + + parsed->suite_glob = kzalloc(period - filter_glob + 1, GFP_KERNEL); + parsed->test_glob = kzalloc(len - (period - filter_glob) + 1, GFP_KERNEL); + + strncpy(parsed->suite_glob, filter_glob, period - filter_glob); + strncpy(parsed->test_glob, period + 1, len - (period - filter_glob)); +} + +/* Create a copy of suite with only tests that match test_glob. */ +static struct kunit_suite * +kunit_filter_tests(const struct kunit_suite *const suite, const char *test_glob) +{ + int n = 0; + struct kunit_case *filtered, *test_case; + struct kunit_suite *copy; + + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + ++n; + } + + if (n == 0) + return NULL; + + copy = kmemdup(suite, sizeof(*copy), GFP_KERNEL); + if (!copy) + return ERR_PTR(-ENOMEM); + + filtered = kcalloc(n + 1, sizeof(*filtered), GFP_KERNEL); + if (!filtered) { + kfree(copy); + return ERR_PTR(-ENOMEM); + } + + n = 0; + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + filtered[n++] = *test_case; + } + + copy->test_cases = filtered; + return copy; +} + +static char *kunit_shutdown; +core_param(kunit_shutdown, kunit_shutdown, charp, 0644); + +/* Stores an array of suites, end points one past the end */ +struct suite_set { + struct kunit_suite * const *start; + struct kunit_suite * const *end; +}; + +static void kunit_free_suite_set(struct suite_set suite_set) +{ + struct kunit_suite * const *suites; + + for (suites = suite_set.start; suites < suite_set.end; suites++) + kfree(*suites); + kfree(suite_set.start); +} + +static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, + const char *filter_glob, + int *err) +{ + int i; + struct kunit_suite **copy, *filtered_suite; + struct suite_set filtered; + struct kunit_test_filter filter; + + const size_t max = suite_set->end - suite_set->start; + + copy = kmalloc_array(max, sizeof(*filtered.start), GFP_KERNEL); + filtered.start = copy; + if (!copy) { /* won't be able to run anything, return an empty set */ + filtered.end = copy; + return filtered; + } + + kunit_parse_filter_glob(&filter, filter_glob); + + for (i = 0; &suite_set->start[i] != suite_set->end; i++) { + if (!glob_match(filter.suite_glob, suite_set->start[i]->name)) + continue; + + filtered_suite = kunit_filter_tests(suite_set->start[i], filter.test_glob); + if (IS_ERR(filtered_suite)) { + *err = PTR_ERR(filtered_suite); + return filtered; + } + if (!filtered_suite) + continue; + + *copy++ = filtered_suite; + } + filtered.end = copy; + + kfree(filter.suite_glob); + kfree(filter.test_glob); + return filtered; +} + +static void kunit_handle_shutdown(void) +{ + if (!kunit_shutdown) + return; + + if (!strcmp(kunit_shutdown, "poweroff")) + kernel_power_off(); + else if (!strcmp(kunit_shutdown, "halt")) + kernel_halt(); + else if (!strcmp(kunit_shutdown, "reboot")) + kernel_restart(NULL); + +} + +static void kunit_exec_run_tests(struct suite_set *suite_set) +{ + size_t num_suites = suite_set->end - suite_set->start; + + pr_info("KTAP version 1\n"); + pr_info("1..%zu\n", num_suites); + + __kunit_test_suites_init(suite_set->start, num_suites); +} + +static void kunit_exec_list_tests(struct suite_set *suite_set) +{ + struct kunit_suite * const *suites; + struct kunit_case *test_case; + + /* Hack: print a ktap header so kunit.py can find the start of KUnit output. */ + pr_info("KTAP version 1\n"); + + for (suites = suite_set->start; suites < suite_set->end; suites++) + kunit_suite_for_each_test_case((*suites), test_case) { + pr_info("%s.%s\n", (*suites)->name, test_case->name); + } +} + +int kunit_run_all_tests(void) +{ + struct suite_set suite_set = {__kunit_suites_start, __kunit_suites_end}; + int err = 0; + if (!kunit_enabled()) { + pr_info("kunit: disabled\n"); + goto out; + } + + if (filter_glob_param) { + suite_set = kunit_filter_suites(&suite_set, filter_glob_param, &err); + if (err) { + pr_err("kunit executor: error filtering suites: %d\n", err); + goto out; + } + } + + if (!action_param) + kunit_exec_run_tests(&suite_set); + else if (strcmp(action_param, "list") == 0) + kunit_exec_list_tests(&suite_set); + else + pr_err("kunit executor: unknown action '%s'\n", action_param); + + if (filter_glob_param) { /* a copy was made of each suite */ + kunit_free_suite_set(suite_set); + } + +out: + kunit_handle_shutdown(); + return err; +} + +#if IS_BUILTIN(CONFIG_KUNIT_TEST) +#include "executor_test.c" +#endif + +#endif /* IS_BUILTIN(CONFIG_KUNIT) */ -- cgit v1.2.3