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, 276 insertions, 0 deletions

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
new file mode 100644
index 000000000..df0d8d852
--- /dev/null
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Resctrl tests
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+
+#define BENCHMARK_ARGS		64
+#define BENCHMARK_ARG_SIZE	64
+
+static int detect_vendor(void)
+{
+	FILE *inf = fopen("/proc/cpuinfo", "r");
+	int vendor_id = 0;
+	char *s = NULL;
+	char *res;
+
+	if (!inf)
+		return vendor_id;
+
+	res = fgrep(inf, "vendor_id");
+
+	if (res)
+		s = strchr(res, ':');
+
+	if (s && !strcmp(s, ": GenuineIntel\n"))
+		vendor_id = ARCH_INTEL;
+	else if (s && !strcmp(s, ": AuthenticAMD\n"))
+		vendor_id = ARCH_AMD;
+
+	fclose(inf);
+	free(res);
+	return vendor_id;
+}
+
+int get_vendor(void)
+{
+	static int vendor = -1;
+
+	if (vendor == -1)
+		vendor = detect_vendor();
+	if (vendor == 0)
+		ksft_print_msg("Can not get vendor info...\n");
+
+	return vendor;
+}
+
+static void cmd_help(void)
+{
+	printf("usage: resctrl_tests [-h] [-b \"benchmark_cmd [options]\"] [-t test list] [-n no_of_bits]\n");
+	printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CMT\n");
+	printf("\t   default benchmark is builtin fill_buf\n");
+	printf("\t-t test list: run tests specified in the test list, ");
+	printf("e.g. -t mbm,mba,cmt,cat\n");
+	printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n");
+	printf("\t-p cpu_no: specify CPU number to run the test. 1 is default\n");
+	printf("\t-h: help\n");
+}
+
+void tests_cleanup(void)
+{
+	mbm_test_cleanup();
+	mba_test_cleanup();
+	cmt_test_cleanup();
+	cat_test_cleanup();
+}
+
+static void run_mbm_test(bool has_ben, char **benchmark_cmd, int span,
+			 int cpu_no, char *bw_report)
+{
+	int res;
+
+	ksft_print_msg("Starting MBM BW change ...\n");
+
+	if (!validate_resctrl_feature_request(MBM_STR)) {
+		ksft_test_result_skip("Hardware does not support MBM or MBM is disabled\n");
+		return;
+	}
+
+	if (!has_ben)
+		sprintf(benchmark_cmd[5], "%s", MBA_STR);
+	res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
+	ksft_test_result(!res, "MBM: bw change\n");
+	if ((get_vendor() == ARCH_INTEL) && res)
+		ksft_print_msg("Intel MBM may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n");
+	mbm_test_cleanup();
+}
+
+static void run_mba_test(bool has_ben, char **benchmark_cmd, int span,
+			 int cpu_no, char *bw_report)
+{
+	int res;
+
+	ksft_print_msg("Starting MBA Schemata change ...\n");
+
+	if (!validate_resctrl_feature_request(MBA_STR)) {
+		ksft_test_result_skip("Hardware does not support MBA or MBA is disabled\n");
+		return;
+	}
+
+	if (!has_ben)
+		sprintf(benchmark_cmd[1], "%d", span);
+	res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
+	ksft_test_result(!res, "MBA: schemata change\n");
+	mba_test_cleanup();
+}
+
+static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no)
+{
+	int res;
+
+	ksft_print_msg("Starting CMT test ...\n");
+	if (!validate_resctrl_feature_request(CMT_STR)) {
+		ksft_test_result_skip("Hardware does not support CMT or CMT is disabled\n");
+		return;
+	}
+
+	if (!has_ben)
+		sprintf(benchmark_cmd[5], "%s", CMT_STR);
+	res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd);
+	ksft_test_result(!res, "CMT: test\n");
+	if ((get_vendor() == ARCH_INTEL) && res)
+		ksft_print_msg("Intel CMT may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n");
+	cmt_test_cleanup();
+}
+
+static void run_cat_test(int cpu_no, int no_of_bits)
+{
+	int res;
+
+	ksft_print_msg("Starting CAT test ...\n");
+
+	if (!validate_resctrl_feature_request(CAT_STR)) {
+		ksft_test_result_skip("Hardware does not support CAT or CAT is disabled\n");
+		return;
+	}
+
+	res = cat_perf_miss_val(cpu_no, no_of_bits, "L3");
+	ksft_test_result(!res, "CAT: test\n");
+	cat_test_cleanup();
+}
+
+int main(int argc, char **argv)
+{
+	bool has_ben = false, mbm_test = true, mba_test = true, cmt_test = true;
+	int c, cpu_no = 1, span = 250, argc_new = argc, i, no_of_bits = 0;
+	char *benchmark_cmd[BENCHMARK_ARGS], bw_report[64], bm_type[64];
+	char benchmark_cmd_area[BENCHMARK_ARGS][BENCHMARK_ARG_SIZE];
+	int ben_ind, ben_count, tests = 0;
+	bool cat_test = true;
+
+	for (i = 0; i < argc; i++) {
+		if (strcmp(argv[i], "-b") == 0) {
+			ben_ind = i + 1;
+			ben_count = argc - ben_ind;
+			argc_new = ben_ind - 1;
+			has_ben = true;
+			break;
+		}
+	}
+
+	while ((c = getopt(argc_new, argv, "ht:b:n:p:")) != -1) {
+		char *token;
+
+		switch (c) {
+		case 't':
+			token = strtok(optarg, ",");
+
+			mbm_test = false;
+			mba_test = false;
+			cmt_test = false;
+			cat_test = false;
+			while (token) {
+				if (!strncmp(token, MBM_STR, sizeof(MBM_STR))) {
+					mbm_test = true;
+					tests++;
+				} else if (!strncmp(token, MBA_STR, sizeof(MBA_STR))) {
+					mba_test = true;
+					tests++;
+				} else if (!strncmp(token, CMT_STR, sizeof(CMT_STR))) {
+					cmt_test = true;
+					tests++;
+				} else if (!strncmp(token, CAT_STR, sizeof(CAT_STR))) {
+					cat_test = true;
+					tests++;
+				} else {
+					printf("invalid argument\n");
+
+					return -1;
+				}
+				token = strtok(NULL, ",");
+			}
+			break;
+		case 'p':
+			cpu_no = atoi(optarg);
+			break;
+		case 'n':
+			no_of_bits = atoi(optarg);
+			if (no_of_bits <= 0) {
+				printf("Bail out! invalid argument for no_of_bits\n");
+				return -1;
+			}
+			break;
+		case 'h':
+			cmd_help();
+
+			return 0;
+		default:
+			printf("invalid argument\n");
+
+			return -1;
+		}
+	}
+
+	ksft_print_header();
+
+	/*
+	 * Typically we need root privileges, because:
+	 * 1. We write to resctrl FS
+	 * 2. We execute perf commands
+	 */
+	if (geteuid() != 0)
+		return ksft_exit_skip("Not running as root. Skipping...\n");
+
+	if (has_ben) {
+		/* Extract benchmark command from command line. */
+		for (i = ben_ind; i < argc; i++) {
+			benchmark_cmd[i - ben_ind] = benchmark_cmd_area[i];
+			sprintf(benchmark_cmd[i - ben_ind], "%s", argv[i]);
+		}
+		benchmark_cmd[ben_count] = NULL;
+	} else {
+		/* If no benchmark is given by "-b" argument, use fill_buf. */
+		for (i = 0; i < 6; i++)
+			benchmark_cmd[i] = benchmark_cmd_area[i];
+
+		strcpy(benchmark_cmd[0], "fill_buf");
+		sprintf(benchmark_cmd[1], "%d", span);
+		strcpy(benchmark_cmd[2], "1");
+		strcpy(benchmark_cmd[3], "1");
+		strcpy(benchmark_cmd[4], "0");
+		strcpy(benchmark_cmd[5], "");
+		benchmark_cmd[6] = NULL;
+	}
+
+	sprintf(bw_report, "reads");
+	sprintf(bm_type, "fill_buf");
+
+	if (!check_resctrlfs_support())
+		return ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config option.\n");
+
+	filter_dmesg();
+
+	ksft_set_plan(tests ? : 4);
+
+	if ((get_vendor() == ARCH_INTEL) && mbm_test)
+		run_mbm_test(has_ben, benchmark_cmd, span, cpu_no, bw_report);
+
+	if ((get_vendor() == ARCH_INTEL) && mba_test)
+		run_mba_test(has_ben, benchmark_cmd, span, cpu_no, bw_report);
+
+	if (cmt_test)
+		run_cmt_test(has_ben, benchmark_cmd, cpu_no);
+
+	if (cat_test)
+		run_cat_test(cpu_no, no_of_bits);
+
+	umount_resctrlfs();
+
+	return ksft_exit_pass();
+}