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().
  ...

1 files changed, 317 insertions, 0 deletions

diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
new file mode 100644
index 000000000..21b7ac00d
--- /dev/null
+++ b/tools/perf/tests/parse-metric.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <string.h>
+#include <perf/cpumap.h>
+#include <perf/evlist.h>
+#include "metricgroup.h"
+#include "tests.h"
+#include "pmu-events/pmu-events.h"
+#include "evlist.h"
+#include "rblist.h"
+#include "debug.h"
+#include "expr.h"
+#include "stat.h"
+#include "pmu.h"
+
+struct value {
+	const char	*event;
+	u64		 val;
+};
+
+static u64 find_value(const char *name, struct value *values)
+{
+	struct value *v = values;
+
+	while (v->event) {
+		if (!strcmp(name, v->event))
+			return v->val;
+		v++;
+	}
+	return 0;
+}
+
+static void load_runtime_stat(struct runtime_stat *st, struct evlist *evlist,
+			      struct value *vals)
+{
+	struct evsel *evsel;
+	u64 count;
+
+	perf_stat__reset_shadow_stats();
+	evlist__for_each_entry(evlist, evsel) {
+		count = find_value(evsel->name, vals);
+		perf_stat__update_shadow_stats(evsel, count, 0, st);
+		if (!strcmp(evsel->name, "duration_time"))
+			update_stats(&walltime_nsecs_stats, count);
+	}
+}
+
+static double compute_single(struct rblist *metric_events, struct evlist *evlist,
+			     struct runtime_stat *st, const char *name)
+{
+	struct metric_expr *mexp;
+	struct metric_event *me;
+	struct evsel *evsel;
+
+	evlist__for_each_entry(evlist, evsel) {
+		me = metricgroup__lookup(metric_events, evsel, false);
+		if (me != NULL) {
+			list_for_each_entry (mexp, &me->head, nd) {
+				if (strcmp(mexp->metric_name, name))
+					continue;
+				return test_generic_metric(mexp, 0, st);
+			}
+		}
+	}
+	return 0.;
+}
+
+static int __compute_metric(const char *name, struct value *vals,
+			    const char *name1, double *ratio1,
+			    const char *name2, double *ratio2)
+{
+	struct rblist metric_events = {
+		.nr_entries = 0,
+	};
+	const struct pmu_events_table *pme_test;
+	struct perf_cpu_map *cpus;
+	struct runtime_stat st;
+	struct evlist *evlist;
+	int err;
+
+	/*
+	 * We need to prepare evlist for stat mode running on CPU 0
+	 * because that's where all the stats are going to be created.
+	 */
+	evlist = evlist__new();
+	if (!evlist)
+		return -ENOMEM;
+
+	cpus = perf_cpu_map__new("0");
+	if (!cpus) {
+		evlist__delete(evlist);
+		return -ENOMEM;
+	}
+
+	perf_evlist__set_maps(&evlist->core, cpus, NULL);
+	runtime_stat__init(&st);
+
+	/* Parse the metric into metric_events list. */
+	pme_test = find_core_events_table("testarch", "testcpu");
+	err = metricgroup__parse_groups_test(evlist, pme_test, name,
+					     false, false,
+					     &metric_events);
+	if (err)
+		goto out;
+
+	err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/false);
+	if (err)
+		goto out;
+
+	/* Load the runtime stats with given numbers for events. */
+	load_runtime_stat(&st, evlist, vals);
+
+	/* And execute the metric */
+	if (name1 && ratio1)
+		*ratio1 = compute_single(&metric_events, evlist, &st, name1);
+	if (name2 && ratio2)
+		*ratio2 = compute_single(&metric_events, evlist, &st, name2);
+
+out:
+	/* ... cleanup. */
+	metricgroup__rblist_exit(&metric_events);
+	runtime_stat__exit(&st);
+	evlist__free_stats(evlist);
+	perf_cpu_map__put(cpus);
+	evlist__delete(evlist);
+	return err;
+}
+
+static int compute_metric(const char *name, struct value *vals, double *ratio)
+{
+	return __compute_metric(name, vals, name, ratio, NULL, NULL);
+}
+
+static int compute_metric_group(const char *name, struct value *vals,
+				const char *name1, double *ratio1,
+				const char *name2, double *ratio2)
+{
+	return __compute_metric(name, vals, name1, ratio1, name2, ratio2);
+}
+
+static int test_ipc(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "inst_retired.any",        .val = 300 },
+		{ .event = "cpu_clk_unhalted.thread", .val = 200 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("IPC", vals, &ratio) == 0);
+
+	TEST_ASSERT_VAL("IPC failed, wrong ratio",
+			ratio == 1.5);
+	return 0;
+}
+
+static int test_frontend(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "idq_uops_not_delivered.core",        .val = 300 },
+		{ .event = "cpu_clk_unhalted.thread",            .val = 200 },
+		{ .event = "cpu_clk_unhalted.one_thread_active", .val = 400 },
+		{ .event = "cpu_clk_unhalted.ref_xclk",          .val = 600 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("Frontend_Bound_SMT", vals, &ratio) == 0);
+
+	TEST_ASSERT_VAL("Frontend_Bound_SMT failed, wrong ratio",
+			ratio == 0.45);
+	return 0;
+}
+
+static int test_cache_miss_cycles(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "l1d-loads-misses",  .val = 300 },
+		{ .event = "l1i-loads-misses",  .val = 200 },
+		{ .event = "inst_retired.any",  .val = 400 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("cache_miss_cycles", vals, &ratio) == 0);
+
+	TEST_ASSERT_VAL("cache_miss_cycles failed, wrong ratio",
+			ratio == 1.25);
+	return 0;
+}
+
+
+/*
+ * DCache_L2_All_Hits = l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hi
+ * DCache_L2_All_Miss = max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) +
+ *                      l2_rqsts.pf_miss + l2_rqsts.rfo_miss
+ * DCache_L2_All      = dcache_l2_all_hits + dcache_l2_all_miss
+ * DCache_L2_Hits     = d_ratio(dcache_l2_all_hits, dcache_l2_all)
+ * DCache_L2_Misses   = d_ratio(dcache_l2_all_miss, dcache_l2_all)
+ *
+ * l2_rqsts.demand_data_rd_hit = 100
+ * l2_rqsts.pf_hit             = 200
+ * l2_rqsts.rfo_hi             = 300
+ * l2_rqsts.all_demand_data_rd = 400
+ * l2_rqsts.pf_miss            = 500
+ * l2_rqsts.rfo_miss           = 600
+ *
+ * DCache_L2_All_Hits = 600
+ * DCache_L2_All_Miss = MAX(400 - 100, 0) + 500 + 600 = 1400
+ * DCache_L2_All      = 600 + 1400  = 2000
+ * DCache_L2_Hits     = 600 / 2000  = 0.3
+ * DCache_L2_Misses   = 1400 / 2000 = 0.7
+ */
+static int test_dcache_l2(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "l2_rqsts.demand_data_rd_hit", .val = 100 },
+		{ .event = "l2_rqsts.pf_hit",             .val = 200 },
+		{ .event = "l2_rqsts.rfo_hit",            .val = 300 },
+		{ .event = "l2_rqsts.all_demand_data_rd", .val = 400 },
+		{ .event = "l2_rqsts.pf_miss",            .val = 500 },
+		{ .event = "l2_rqsts.rfo_miss",           .val = 600 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("DCache_L2_Hits", vals, &ratio) == 0);
+
+	TEST_ASSERT_VAL("DCache_L2_Hits failed, wrong ratio",
+			ratio == 0.3);
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("DCache_L2_Misses", vals, &ratio) == 0);
+
+	TEST_ASSERT_VAL("DCache_L2_Misses failed, wrong ratio",
+			ratio == 0.7);
+	return 0;
+}
+
+static int test_recursion_fail(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "inst_retired.any",        .val = 300 },
+		{ .event = "cpu_clk_unhalted.thread", .val = 200 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to find recursion",
+			compute_metric("M1", vals, &ratio) == -1);
+
+	TEST_ASSERT_VAL("failed to find recursion",
+			compute_metric("M3", vals, &ratio) == -1);
+	return 0;
+}
+
+static int test_memory_bandwidth(void)
+{
+	double ratio;
+	struct value vals[] = {
+		{ .event = "l1d.replacement", .val = 4000000 },
+		{ .event = "duration_time",  .val = 200000000 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to compute metric",
+			compute_metric("L1D_Cache_Fill_BW", vals, &ratio) == 0);
+	TEST_ASSERT_VAL("L1D_Cache_Fill_BW, wrong ratio",
+			1.28 == ratio);
+
+	return 0;
+}
+
+static int test_metric_group(void)
+{
+	double ratio1, ratio2;
+	struct value vals[] = {
+		{ .event = "cpu_clk_unhalted.thread", .val = 200 },
+		{ .event = "l1d-loads-misses",        .val = 300 },
+		{ .event = "l1i-loads-misses",        .val = 200 },
+		{ .event = "inst_retired.any",        .val = 400 },
+		{ .event = NULL, },
+	};
+
+	TEST_ASSERT_VAL("failed to find recursion",
+			compute_metric_group("group1", vals,
+					     "IPC", &ratio1,
+					     "cache_miss_cycles", &ratio2) == 0);
+
+	TEST_ASSERT_VAL("group IPC failed, wrong ratio",
+			ratio1 == 2.0);
+
+	TEST_ASSERT_VAL("group cache_miss_cycles failed, wrong ratio",
+			ratio2 == 1.25);
+	return 0;
+}
+
+static int test__parse_metric(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	TEST_ASSERT_VAL("IPC failed", test_ipc() == 0);
+	TEST_ASSERT_VAL("frontend failed", test_frontend() == 0);
+	TEST_ASSERT_VAL("DCache_L2 failed", test_dcache_l2() == 0);
+	TEST_ASSERT_VAL("recursion fail failed", test_recursion_fail() == 0);
+	TEST_ASSERT_VAL("Memory bandwidth", test_memory_bandwidth() == 0);
+
+	if (!perf_pmu__has_hybrid()) {
+		TEST_ASSERT_VAL("cache_miss_cycles failed", test_cache_miss_cycles() == 0);
+		TEST_ASSERT_VAL("test metric group", test_metric_group() == 0);
+	}
+	return 0;
+}
+
+DEFINE_SUITE("Parse and process metrics", parse_metric);