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, 226 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
new file mode 100644
index 000000000..3edbf0719
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * R-Car Generation 2 support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ * Copyright (C) 2014  Ulrich Hecht
+ */
+
+#include <linux/clocksource.h>
+#include <linux/device.h>
+#include <linux/dma-map-ops.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/memblock.h>
+#include <linux/of.h>
+#include <linux/of_clk.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+#include <linux/psci.h>
+#include <asm/mach/arch.h>
+#include <asm/secure_cntvoff.h>
+#include "common.h"
+#include "rcar-gen2.h"
+
+static const struct of_device_id cpg_matches[] __initconst = {
+	{ .compatible = "renesas,r8a7742-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7743-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7744-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7790-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7791-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7793-cpg-mssr", .data = "extal" },
+	{ /* sentinel */ }
+};
+
+static unsigned int __init get_extal_freq(void)
+{
+	const struct of_device_id *match;
+	struct device_node *cpg, *extal;
+	u32 freq = 20000000;
+	int idx = 0;
+
+	cpg = of_find_matching_node_and_match(NULL, cpg_matches, &match);
+	if (!cpg)
+		return freq;
+
+	if (match->data)
+		idx = of_property_match_string(cpg, "clock-names", match->data);
+	extal = of_parse_phandle(cpg, "clocks", idx);
+	of_node_put(cpg);
+	if (!extal)
+		return freq;
+
+	of_property_read_u32(extal, "clock-frequency", &freq);
+	of_node_put(extal);
+	return freq;
+}
+
+#define CNTCR 0
+#define CNTFID0 0x20
+
+static void __init rcar_gen2_timer_init(void)
+{
+	bool need_update = true;
+	void __iomem *base;
+	u32 freq;
+
+	/*
+	 * If PSCI is available then most likely we are running on PSCI-enabled
+	 * U-Boot which, we assume, has already taken care of resetting CNTVOFF
+	 * and updating counter module before switching to non-secure mode
+	 * and we don't need to.
+	 */
+#ifdef CONFIG_ARM_PSCI_FW
+	if (psci_ops.cpu_on)
+		need_update = false;
+#endif
+
+	if (need_update == false)
+		goto skip_update;
+
+	secure_cntvoff_init();
+
+	if (of_machine_is_compatible("renesas,r8a7745") ||
+	    of_machine_is_compatible("renesas,r8a77470") ||
+	    of_machine_is_compatible("renesas,r8a7792") ||
+	    of_machine_is_compatible("renesas,r8a7794")) {
+		freq = 260000000 / 8;	/* ZS / 8 */
+	} else {
+		/* At Linux boot time the r8a7790 arch timer comes up
+		 * with the counter disabled. Moreover, it may also report
+		 * a potentially incorrect fixed 13 MHz frequency. To be
+		 * correct these registers need to be updated to use the
+		 * frequency EXTAL / 2.
+		 */
+		freq = get_extal_freq() / 2;
+	}
+
+	/* Remap "armgcnt address map" space */
+	base = ioremap(0xe6080000, PAGE_SIZE);
+
+	/*
+	 * Update the timer if it is either not running, or is not at the
+	 * right frequency. The timer is only configurable in secure mode
+	 * so this avoids an abort if the loader started the timer and
+	 * entered the kernel in non-secure mode.
+	 */
+
+	if ((ioread32(base + CNTCR) & 1) == 0 ||
+	    ioread32(base + CNTFID0) != freq) {
+		/* Update registers with correct frequency */
+		iowrite32(freq, base + CNTFID0);
+		asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
+
+		/* make sure arch timer is started by setting bit 0 of CNTCR */
+		iowrite32(1, base + CNTCR);
+	}
+
+	iounmap(base);
+
+skip_update:
+	of_clk_init(NULL);
+	timer_probe();
+}
+
+struct memory_reserve_config {
+	u64 reserved;
+	u64 base, size;
+};
+
+static int __init rcar_gen2_scan_mem(unsigned long node, const char *uname,
+				     int depth, void *data)
+{
+	const char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+	const __be32 *reg, *endp;
+	int l;
+	struct memory_reserve_config *mrc = data;
+	u64 lpae_start = 1ULL << 32;
+
+	/* We are scanning "memory" nodes only */
+	if (type == NULL || strcmp(type, "memory"))
+		return 0;
+
+	reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);
+	if (reg == NULL)
+		reg = of_get_flat_dt_prop(node, "reg", &l);
+	if (reg == NULL)
+		return 0;
+
+	endp = reg + (l / sizeof(__be32));
+	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
+		u64 base, size;
+
+		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
+		size = dt_mem_next_cell(dt_root_size_cells, &reg);
+
+		if (base >= lpae_start)
+			continue;
+
+		if ((base + size) >= lpae_start)
+			size = lpae_start - base;
+
+		if (size < mrc->reserved)
+			continue;
+
+		if (base < mrc->base)
+			continue;
+
+		/* keep the area at top near the 32-bit legacy limit */
+		mrc->base = base + size - mrc->reserved;
+		mrc->size = mrc->reserved;
+	}
+
+	return 0;
+}
+
+static void __init rcar_gen2_reserve(void)
+{
+	struct memory_reserve_config mrc;
+
+	/* reserve 256 MiB at the top of the physical legacy 32-bit space */
+	memset(&mrc, 0, sizeof(mrc));
+	mrc.reserved = SZ_256M;
+
+	of_scan_flat_dt(rcar_gen2_scan_mem, &mrc);
+#ifdef CONFIG_DMA_CMA
+	if (mrc.size && memblock_is_region_memory(mrc.base, mrc.size)) {
+		static struct cma *rcar_gen2_dma_contiguous;
+
+		dma_contiguous_reserve_area(mrc.size, mrc.base, 0,
+					    &rcar_gen2_dma_contiguous, true);
+	}
+#endif
+}
+
+static const char * const rcar_gen2_boards_compat_dt[] __initconst = {
+	"renesas,r8a7790",
+	"renesas,r8a7791",
+	"renesas,r8a7792",
+	"renesas,r8a7793",
+	"renesas,r8a7794",
+	NULL
+};
+
+DT_MACHINE_START(RCAR_GEN2_DT, "Generic R-Car Gen2 (Flattened Device Tree)")
+	.init_late	= shmobile_init_late,
+	.init_time	= rcar_gen2_timer_init,
+	.reserve	= rcar_gen2_reserve,
+	.dt_compat	= rcar_gen2_boards_compat_dt,
+MACHINE_END
+
+static const char * const rz_g1_boards_compat_dt[] __initconst = {
+	"renesas,r8a7742",
+	"renesas,r8a7743",
+	"renesas,r8a7744",
+	"renesas,r8a7745",
+	"renesas,r8a77470",
+	NULL
+};
+
+DT_MACHINE_START(RZ_G1_DT, "Generic RZ/G1 (Flattened Device Tree)")
+	.init_late	= shmobile_init_late,
+	.init_time	= rcar_gen2_timer_init,
+	.reserve	= rcar_gen2_reserve,
+	.dt_compat	= rz_g1_boards_compat_dt,
+MACHINE_END