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, 219 insertions, 0 deletions

diff --git a/tools/testing/selftests/ir/ir_loopback.c b/tools/testing/selftests/ir/ir_loopback.c
new file mode 100644
index 000000000..f4a15cbdd
--- /dev/null
+++ b/tools/testing/selftests/ir/ir_loopback.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0
+// test ir decoder
+//
+// Copyright (C) 2018 Sean Young <sean@mess.org>
+
+// When sending LIRC_MODE_SCANCODE, the IR will be encoded. rc-loopback
+// will send this IR to the receiver side, where we try to read the decoded
+// IR. Decoding happens in a separate kernel thread, so we will need to
+// wait until that is scheduled, hence we use poll to check for read
+// readiness.
+
+#include <linux/lirc.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <poll.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "../kselftest.h"
+
+#define TEST_SCANCODES	10
+#define SYSFS_PATH_MAX 256
+#define DNAME_PATH_MAX 256
+
+/*
+ * Support ancient lirc.h which does not have these values. Can be removed
+ * once RHEL 8 is no longer a relevant testing platform.
+ */
+#if RC_PROTO_MAX < 26
+#define RC_PROTO_RCMM12 24
+#define RC_PROTO_RCMM24 25
+#define RC_PROTO_RCMM32 26
+#endif
+
+static const struct {
+	enum rc_proto proto;
+	const char *name;
+	unsigned int mask;
+	const char *decoder;
+} protocols[] = {
+	{ RC_PROTO_RC5, "rc-5", 0x1f7f, "rc-5" },
+	{ RC_PROTO_RC5X_20, "rc-5x-20", 0x1f7f3f, "rc-5" },
+	{ RC_PROTO_RC5_SZ, "rc-5-sz", 0x2fff, "rc-5-sz" },
+	{ RC_PROTO_JVC, "jvc", 0xffff, "jvc" },
+	{ RC_PROTO_SONY12, "sony-12", 0x1f007f, "sony" },
+	{ RC_PROTO_SONY15, "sony-15", 0xff007f, "sony" },
+	{ RC_PROTO_SONY20, "sony-20", 0x1fff7f, "sony" },
+	{ RC_PROTO_NEC, "nec", 0xffff, "nec" },
+	{ RC_PROTO_NECX, "nec-x", 0xffffff, "nec" },
+	{ RC_PROTO_NEC32, "nec-32", 0xffffffff, "nec" },
+	{ RC_PROTO_SANYO, "sanyo", 0x1fffff, "sanyo" },
+	{ RC_PROTO_RC6_0, "rc-6-0", 0xffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_20, "rc-6-6a-20", 0xfffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_24, "rc-6-6a-24", 0xffffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_32, "rc-6-6a-32", 0xffffffff, "rc-6" },
+	{ RC_PROTO_RC6_MCE, "rc-6-mce", 0x00007fff, "rc-6" },
+	{ RC_PROTO_SHARP, "sharp", 0x1fff, "sharp" },
+	{ RC_PROTO_IMON, "imon", 0x7fffffff, "imon" },
+	{ RC_PROTO_RCMM12, "rcmm-12", 0x00000fff, "rc-mm" },
+	{ RC_PROTO_RCMM24, "rcmm-24", 0x00ffffff, "rc-mm" },
+	{ RC_PROTO_RCMM32, "rcmm-32", 0xffffffff, "rc-mm" },
+};
+
+int lirc_open(const char *rc)
+{
+	struct dirent *dent;
+	char buf[SYSFS_PATH_MAX + DNAME_PATH_MAX];
+	DIR *d;
+	int fd;
+
+	snprintf(buf, sizeof(buf), "/sys/class/rc/%s", rc);
+
+	d = opendir(buf);
+	if (!d)
+		ksft_exit_fail_msg("cannot open %s: %m\n", buf);
+
+	while ((dent = readdir(d)) != NULL) {
+		if (!strncmp(dent->d_name, "lirc", 4)) {
+			snprintf(buf, sizeof(buf), "/dev/%s", dent->d_name);
+			break;
+		}
+	}
+
+	if (!dent)
+		ksft_exit_skip("cannot find lirc device for %s\n", rc);
+
+	closedir(d);
+
+	fd = open(buf, O_RDWR | O_NONBLOCK);
+	if (fd == -1)
+		ksft_exit_fail_msg("cannot open: %s: %m\n", buf);
+
+	return fd;
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int mode;
+	char buf[100];
+	int rlircfd, wlircfd, protocolfd, i, n;
+
+	srand(time(NULL));
+
+	if (argc != 3)
+		ksft_exit_fail_msg("Usage: %s <write rcN> <read rcN>\n",
+				   argv[0]);
+
+	rlircfd = lirc_open(argv[2]);
+	mode = LIRC_MODE_SCANCODE;
+	if (ioctl(rlircfd, LIRC_SET_REC_MODE, &mode))
+		ksft_exit_fail_msg("failed to set scancode rec mode %s: %m\n",
+				   argv[2]);
+
+	wlircfd = lirc_open(argv[1]);
+	if (ioctl(wlircfd, LIRC_SET_SEND_MODE, &mode))
+		ksft_exit_fail_msg("failed to set scancode send mode %s: %m\n",
+				   argv[1]);
+
+	snprintf(buf, sizeof(buf), "/sys/class/rc/%s/protocols", argv[2]);
+	protocolfd = open(buf, O_WRONLY);
+	if (protocolfd == -1)
+		ksft_exit_fail_msg("failed to open %s: %m\n", buf);
+
+	printf("Sending IR on %s and receiving IR on %s.\n", argv[1], argv[2]);
+
+	for (i = 0; i < ARRAY_SIZE(protocols); i++) {
+		if (write(protocolfd, protocols[i].decoder,
+			  strlen(protocols[i].decoder)) == -1)
+			ksft_exit_fail_msg("failed to set write decoder\n");
+
+		printf("Testing protocol %s for decoder %s (%d/%d)...\n",
+		       protocols[i].name, protocols[i].decoder,
+		       i + 1, (int)ARRAY_SIZE(protocols));
+
+		for (n = 0; n < TEST_SCANCODES; n++) {
+			unsigned int scancode = rand() & protocols[i].mask;
+			unsigned int rc_proto = protocols[i].proto;
+
+			if (rc_proto == RC_PROTO_RC6_MCE)
+				scancode |= 0x800f0000;
+
+			if (rc_proto == RC_PROTO_NECX &&
+			    (((scancode >> 16) ^ ~(scancode >> 8)) & 0xff) == 0)
+				continue;
+
+			if (rc_proto == RC_PROTO_NEC32 &&
+			    (((scancode >> 8) ^ ~scancode) & 0xff) == 0)
+				continue;
+
+			if (rc_proto == RC_PROTO_RCMM32 &&
+			    (scancode & 0x000c0000) != 0x000c0000 &&
+			    scancode & 0x00008000)
+				continue;
+
+			struct lirc_scancode lsc = {
+				.rc_proto = rc_proto,
+				.scancode = scancode
+			};
+
+			printf("Testing scancode:%x\n", scancode);
+
+			while (write(wlircfd, &lsc, sizeof(lsc)) < 0) {
+				if (errno == EINTR)
+					continue;
+
+				ksft_exit_fail_msg("failed to send ir: %m\n");
+			}
+
+			struct pollfd pfd = { .fd = rlircfd, .events = POLLIN };
+			struct lirc_scancode lsc2;
+
+			poll(&pfd, 1, 1000);
+
+			bool decoded = true;
+
+			while (read(rlircfd, &lsc2, sizeof(lsc2)) < 0) {
+				if (errno == EINTR)
+					continue;
+
+				ksft_test_result_error("no scancode decoded: %m\n");
+				decoded = false;
+				break;
+			}
+
+			if (!decoded)
+				continue;
+
+			if (lsc.rc_proto != lsc2.rc_proto)
+				ksft_test_result_error("decoded protocol is different: %d\n",
+						       lsc2.rc_proto);
+
+			else if (lsc.scancode != lsc2.scancode)
+				ksft_test_result_error("decoded scancode is different: %llx\n",
+						       lsc2.scancode);
+			else
+				ksft_inc_pass_cnt();
+		}
+
+		printf("OK\n");
+	}
+
+	close(rlircfd);
+	close(wlircfd);
+	close(protocolfd);
+
+	if (ksft_get_fail_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+
+	return 0;
+}