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, 419 insertions, 0 deletions

diff --git a/tools/perf/tests/dlfilter-test.c b/tools/perf/tests/dlfilter-test.c
new file mode 100644
index 000000000..086fd2179
--- /dev/null
+++ b/tools/perf/tests/dlfilter-test.c
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test dlfilter C API. A perf.data file is synthesized and then processed
+ * by perf script with a dlfilter named dlfilter-test-api-v0.so. Also a C file
+ * is compiled to provide a dso to match the synthesized perf.data file.
+ */
+
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/perf_event.h>
+#include <internal/lib.h>
+#include <subcmd/exec-cmd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <string.h>
+#include <errno.h>
+#include "debug.h"
+#include "tool.h"
+#include "event.h"
+#include "header.h"
+#include "machine.h"
+#include "dso.h"
+#include "map.h"
+#include "symbol.h"
+#include "synthetic-events.h"
+#include "util.h"
+#include "archinsn.h"
+#include "dlfilter.h"
+#include "tests.h"
+#include "util/sample.h"
+
+#define MAP_START 0x400000
+
+struct test_data {
+	struct perf_tool tool;
+	struct machine *machine;
+	int fd;
+	u64 foo;
+	u64 bar;
+	u64 ip;
+	u64 addr;
+	char perf[PATH_MAX];
+	char perf_data_file_name[PATH_MAX];
+	char c_file_name[PATH_MAX];
+	char prog_file_name[PATH_MAX];
+	char dlfilters[PATH_MAX];
+};
+
+static int test_result(const char *msg, int ret)
+{
+	pr_debug("%s\n", msg);
+	return ret;
+}
+
+static int process(struct perf_tool *tool, union perf_event *event,
+		   struct perf_sample *sample __maybe_unused,
+		   struct machine *machine __maybe_unused)
+{
+	struct test_data *td = container_of(tool, struct test_data, tool);
+	int fd = td->fd;
+
+	if (writen(fd, event, event->header.size) != event->header.size)
+		return -1;
+
+	return 0;
+}
+
+#define MAXCMD 4096
+#define REDIRECT_TO_DEV_NULL " >/dev/null 2>&1"
+
+static __printf(1, 2) int system_cmd(const char *fmt, ...)
+{
+	char cmd[MAXCMD + sizeof(REDIRECT_TO_DEV_NULL)];
+	int ret;
+
+	va_list args;
+
+	va_start(args, fmt);
+	ret = vsnprintf(cmd, MAXCMD, fmt, args);
+	va_end(args);
+
+	if (ret <= 0 || ret >= MAXCMD)
+		return -1;
+
+	if (verbose <= 0)
+		strcat(cmd, REDIRECT_TO_DEV_NULL);
+
+	pr_debug("Command: %s\n", cmd);
+	ret = system(cmd);
+	if (ret)
+		pr_debug("Failed with return value %d\n", ret);
+
+	return ret;
+}
+
+static bool have_gcc(void)
+{
+	pr_debug("Checking for gcc\n");
+	return !system_cmd("gcc --version");
+}
+
+static int write_attr(struct test_data *td, u64 sample_type, u64 *id)
+{
+	struct perf_event_attr attr = {
+		.size = sizeof(attr),
+		.type = PERF_TYPE_HARDWARE,
+		.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+		.sample_type = sample_type,
+		.sample_period = 1,
+	};
+
+	return perf_event__synthesize_attr(&td->tool, &attr, 1, id, process);
+}
+
+static int write_comm(int fd, pid_t pid, pid_t tid, const char *comm_str)
+{
+	struct perf_record_comm comm;
+	ssize_t sz = sizeof(comm);
+
+	comm.header.type = PERF_RECORD_COMM;
+	comm.header.misc = PERF_RECORD_MISC_USER;
+	comm.header.size = sz;
+
+	comm.pid = pid;
+	comm.tid = tid;
+	strncpy(comm.comm, comm_str, 16);
+
+	if (writen(fd, &comm, sz) != sz) {
+		pr_debug("%s failed\n", __func__);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int write_mmap(int fd, pid_t pid, pid_t tid, u64 start, u64 len, u64 pgoff,
+		      const char *filename)
+{
+	char buf[PERF_SAMPLE_MAX_SIZE];
+	struct perf_record_mmap *mmap = (struct perf_record_mmap *)buf;
+	size_t fsz = roundup(strlen(filename) + 1, 8);
+	ssize_t sz = sizeof(*mmap) - sizeof(mmap->filename) + fsz;
+
+	mmap->header.type = PERF_RECORD_MMAP;
+	mmap->header.misc = PERF_RECORD_MISC_USER;
+	mmap->header.size = sz;
+
+	mmap->pid   = pid;
+	mmap->tid   = tid;
+	mmap->start = start;
+	mmap->len   = len;
+	mmap->pgoff = pgoff;
+	strncpy(mmap->filename, filename, sizeof(mmap->filename));
+
+	if (writen(fd, mmap, sz) != sz) {
+		pr_debug("%s failed\n", __func__);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int write_sample(struct test_data *td, u64 sample_type, u64 id, pid_t pid, pid_t tid)
+{
+	char buf[PERF_SAMPLE_MAX_SIZE];
+	union perf_event *event = (union perf_event *)buf;
+	struct perf_sample sample = {
+		.ip		= td->ip,
+		.addr		= td->addr,
+		.id		= id,
+		.time		= 1234567890,
+		.cpu		= 31,
+		.pid		= pid,
+		.tid		= tid,
+		.period		= 543212345,
+		.stream_id	= 101,
+	};
+	int err;
+
+	event->header.type = PERF_RECORD_SAMPLE;
+	event->header.misc = PERF_RECORD_MISC_USER;
+	event->header.size = perf_event__sample_event_size(&sample, sample_type, 0);
+	err = perf_event__synthesize_sample(event, sample_type, 0, &sample);
+	if (err)
+		return test_result("perf_event__synthesize_sample() failed", TEST_FAIL);
+
+	err = process(&td->tool, event, &sample, td->machine);
+	if (err)
+		return test_result("Failed to write sample", TEST_FAIL);
+
+	return TEST_OK;
+}
+
+static void close_fd(int fd)
+{
+	if (fd >= 0)
+		close(fd);
+}
+
+static const char *prog = "int bar(){};int foo(){bar();};int main(){foo();return 0;}";
+
+static int write_prog(char *file_name)
+{
+	int fd = creat(file_name, 0644);
+	ssize_t n = strlen(prog);
+	bool err = fd < 0 || writen(fd, prog, n) != n;
+
+	close_fd(fd);
+	return err ? -1 : 0;
+}
+
+static int get_dlfilters_path(char *buf, size_t sz)
+{
+	char perf[PATH_MAX];
+	char path[PATH_MAX];
+	char *perf_path;
+	char *exec_path;
+
+	perf_exe(perf, sizeof(perf));
+	perf_path = dirname(perf);
+	snprintf(path, sizeof(path), "%s/dlfilters/dlfilter-test-api-v0.so", perf_path);
+	if (access(path, R_OK)) {
+		exec_path = get_argv_exec_path();
+		if (!exec_path)
+			return -1;
+		snprintf(path, sizeof(path), "%s/dlfilters/dlfilter-test-api-v0.so", exec_path);
+		free(exec_path);
+		if (access(path, R_OK))
+			return -1;
+	}
+	strlcpy(buf, dirname(path), sz);
+	return 0;
+}
+
+static int check_filter_desc(struct test_data *td)
+{
+	char *long_desc = NULL;
+	char *desc = NULL;
+	int ret;
+
+	if (get_filter_desc(td->dlfilters, "dlfilter-test-api-v0.so", &desc, &long_desc) &&
+	    long_desc && !strcmp(long_desc, "Filter used by the 'dlfilter C API' perf test") &&
+	    desc && !strcmp(desc, "dlfilter to test v0 C API"))
+		ret = 0;
+	else
+		ret = -1;
+
+	free(desc);
+	free(long_desc);
+	return ret;
+}
+
+static int get_ip_addr(struct test_data *td)
+{
+	struct map *map;
+	struct symbol *sym;
+
+	map = dso__new_map(td->prog_file_name);
+	if (!map)
+		return -1;
+
+	sym = map__find_symbol_by_name(map, "foo");
+	if (sym)
+		td->foo = sym->start;
+
+	sym = map__find_symbol_by_name(map, "bar");
+	if (sym)
+		td->bar = sym->start;
+
+	map__put(map);
+
+	td->ip = MAP_START + td->foo;
+	td->addr = MAP_START + td->bar;
+
+	return td->foo && td->bar ? 0 : -1;
+}
+
+static int do_run_perf_script(struct test_data *td, int do_early)
+{
+	return system_cmd("%s script -i %s "
+			  "--dlfilter %s/dlfilter-test-api-v0.so "
+			  "--dlarg first "
+			  "--dlarg %d "
+			  "--dlarg %" PRIu64 " "
+			  "--dlarg %" PRIu64 " "
+			  "--dlarg %d "
+			  "--dlarg last",
+			  td->perf, td->perf_data_file_name, td->dlfilters,
+			  verbose, td->ip, td->addr, do_early);
+}
+
+static int run_perf_script(struct test_data *td)
+{
+	int do_early;
+	int err;
+
+	for (do_early = 0; do_early < 3; do_early++) {
+		err = do_run_perf_script(td, do_early);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+#define TEST_SAMPLE_TYPE (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \
+			  PERF_SAMPLE_IDENTIFIER | PERF_SAMPLE_TIME | \
+			  PERF_SAMPLE_ADDR | PERF_SAMPLE_CPU | \
+			  PERF_SAMPLE_PERIOD | PERF_SAMPLE_STREAM_ID)
+
+static int test__dlfilter_test(struct test_data *td)
+{
+	u64 sample_type = TEST_SAMPLE_TYPE;
+	pid_t pid = 12345;
+	pid_t tid = 12346;
+	u64 id = 99;
+	int err;
+
+	if (get_dlfilters_path(td->dlfilters, PATH_MAX))
+		return test_result("dlfilters not found", TEST_SKIP);
+
+	if (check_filter_desc(td))
+		return test_result("Failed to get expected filter description", TEST_FAIL);
+
+	if (!have_gcc())
+		return test_result("gcc not found", TEST_SKIP);
+
+	pr_debug("dlfilters path: %s\n", td->dlfilters);
+
+	if (write_prog(td->c_file_name))
+		return test_result("Failed to write test C file", TEST_FAIL);
+
+	if (verbose > 1)
+		system_cmd("cat %s ; echo", td->c_file_name);
+
+	if (system_cmd("gcc -g -o %s %s", td->prog_file_name, td->c_file_name))
+		return TEST_FAIL;
+
+	if (verbose > 2)
+		system_cmd("objdump -x -dS %s", td->prog_file_name);
+
+	if (get_ip_addr(td))
+		return test_result("Failed to find program symbols", TEST_FAIL);
+
+	pr_debug("Creating new host machine structure\n");
+	td->machine = machine__new_host();
+	td->machine->env = &perf_env;
+
+	td->fd = creat(td->perf_data_file_name, 0644);
+	if (td->fd < 0)
+		return test_result("Failed to create test perf.data file", TEST_FAIL);
+
+	err = perf_header__write_pipe(td->fd);
+	if (err < 0)
+		return test_result("perf_header__write_pipe() failed", TEST_FAIL);
+
+	err = write_attr(td, sample_type, &id);
+	if (err)
+		return test_result("perf_event__synthesize_attr() failed", TEST_FAIL);
+
+	if (write_comm(td->fd, pid, tid, "test-prog"))
+		return TEST_FAIL;
+
+	if (write_mmap(td->fd, pid, tid, MAP_START, 0x10000, 0, td->prog_file_name))
+		return TEST_FAIL;
+
+	if (write_sample(td, sample_type, id, pid, tid) != TEST_OK)
+		return TEST_FAIL;
+
+	if (verbose > 1)
+		system_cmd("%s script -i %s -D", td->perf, td->perf_data_file_name);
+
+	err = run_perf_script(td);
+	if (err)
+		return TEST_FAIL;
+
+	return TEST_OK;
+}
+
+static void unlink_path(const char *path)
+{
+	if (*path)
+		unlink(path);
+}
+
+static void test_data__free(struct test_data *td)
+{
+	machine__delete(td->machine);
+	close_fd(td->fd);
+	if (verbose <= 2) {
+		unlink_path(td->c_file_name);
+		unlink_path(td->prog_file_name);
+		unlink_path(td->perf_data_file_name);
+	}
+}
+
+static int test__dlfilter(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	struct test_data td = {.fd = -1};
+	int pid = getpid();
+	int err;
+
+	perf_exe(td.perf, sizeof(td.perf));
+
+	snprintf(td.perf_data_file_name, PATH_MAX, "/tmp/dlfilter-test-%u-perf-data", pid);
+	snprintf(td.c_file_name, PATH_MAX, "/tmp/dlfilter-test-%u-prog.c", pid);
+	snprintf(td.prog_file_name, PATH_MAX, "/tmp/dlfilter-test-%u-prog", pid);
+
+	err = test__dlfilter_test(&td);
+	test_data__free(&td);
+	return err;
+}
+
+DEFINE_SUITE("dlfilter C API", dlfilter);