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, 223 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
new file mode 100644
index 000000000..51a247ca4
--- /dev/null
+++ b/arch/arm/mach-exynos/exynos.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Samsung Exynos Flattened Device Tree enabled machine
+//
+// Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
+//		http://www.samsung.com
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/platform_device.h>
+#include <linux/irqchip.h>
+#include <linux/soc/samsung/exynos-regs-pmu.h>
+
+#include <asm/cacheflush.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "common.h"
+
+#define S3C_ADDR_BASE	0xF6000000
+#define S3C_ADDR(x)	((void __iomem __force *)S3C_ADDR_BASE + (x))
+#define S5P_VA_CHIPID	S3C_ADDR(0x02000000)
+
+static struct platform_device exynos_cpuidle = {
+	.name              = "exynos_cpuidle",
+#ifdef CONFIG_ARM_EXYNOS_CPUIDLE
+	.dev.platform_data = exynos_enter_aftr,
+#endif
+	.id                = -1,
+};
+
+void __iomem *sysram_base_addr __ro_after_init;
+phys_addr_t sysram_base_phys __ro_after_init;
+void __iomem *sysram_ns_base_addr __ro_after_init;
+
+unsigned long exynos_cpu_id;
+static unsigned int exynos_cpu_rev;
+
+unsigned int exynos_rev(void)
+{
+	return exynos_cpu_rev;
+}
+
+void __init exynos_sysram_init(void)
+{
+	struct device_node *node;
+
+	for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") {
+		if (!of_device_is_available(node))
+			continue;
+		sysram_base_addr = of_iomap(node, 0);
+		sysram_base_phys = of_translate_address(node,
+					   of_get_address(node, 0, NULL, NULL));
+		of_node_put(node);
+		break;
+	}
+
+	for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") {
+		if (!of_device_is_available(node))
+			continue;
+		sysram_ns_base_addr = of_iomap(node, 0);
+		of_node_put(node);
+		break;
+	}
+}
+
+static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
+					int depth, void *data)
+{
+	struct map_desc iodesc;
+	const __be32 *reg;
+	int len;
+
+	if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid"))
+		return 0;
+
+	reg = of_get_flat_dt_prop(node, "reg", &len);
+	if (reg == NULL || len != (sizeof(unsigned long) * 2))
+		return 0;
+
+	iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
+	iodesc.length = be32_to_cpu(reg[1]) - 1;
+	iodesc.virtual = (unsigned long)S5P_VA_CHIPID;
+	iodesc.type = MT_DEVICE;
+	iotable_init(&iodesc, 1);
+	return 1;
+}
+
+static void __init exynos_init_io(void)
+{
+	debug_ll_io_init();
+
+	of_scan_flat_dt(exynos_fdt_map_chipid, NULL);
+
+	/* detect cpu id and rev. */
+	exynos_cpu_id = readl_relaxed(S5P_VA_CHIPID);
+	exynos_cpu_rev = exynos_cpu_id & 0xFF;
+
+	pr_info("Samsung CPU ID: 0x%08lx\n", exynos_cpu_id);
+
+}
+
+/*
+ * Set or clear the USE_DELAYED_RESET_ASSERTION option. Used by smp code
+ * and suspend.
+ *
+ * This is necessary only on Exynos4 SoCs. When system is running
+ * USE_DELAYED_RESET_ASSERTION should be set so the ARM CLK clock down
+ * feature could properly detect global idle state when secondary CPU is
+ * powered down.
+ *
+ * However this should not be set when such system is going into suspend.
+ */
+void exynos_set_delayed_reset_assertion(bool enable)
+{
+	if (of_machine_is_compatible("samsung,exynos4")) {
+		unsigned int tmp, core_id;
+
+		for (core_id = 0; core_id < num_possible_cpus(); core_id++) {
+			tmp = pmu_raw_readl(EXYNOS_ARM_CORE_OPTION(core_id));
+			if (enable)
+				tmp |= S5P_USE_DELAYED_RESET_ASSERTION;
+			else
+				tmp &= ~(S5P_USE_DELAYED_RESET_ASSERTION);
+			pmu_raw_writel(tmp, EXYNOS_ARM_CORE_OPTION(core_id));
+		}
+	}
+}
+
+/*
+ * Apparently, these SoCs are not able to wake-up from suspend using
+ * the PMU. Too bad. Should they suddenly become capable of such a
+ * feat, the matches below should be moved to suspend.c.
+ */
+static const struct of_device_id exynos_dt_pmu_match[] = {
+	{ .compatible = "samsung,exynos5260-pmu" },
+	{ .compatible = "samsung,exynos5410-pmu" },
+	{ /*sentinel*/ },
+};
+
+static void exynos_map_pmu(void)
+{
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, exynos_dt_pmu_match);
+	if (np)
+		pmu_base_addr = of_iomap(np, 0);
+	of_node_put(np);
+}
+
+static void __init exynos_init_irq(void)
+{
+	irqchip_init();
+	/*
+	 * Since platsmp.c needs pmu base address by the time
+	 * DT is not unflatten so we can't use DT APIs before
+	 * init_irq
+	 */
+	exynos_map_pmu();
+}
+
+static void __init exynos_dt_machine_init(void)
+{
+	/*
+	 * This is called from smp_prepare_cpus if we've built for SMP, but
+	 * we still need to set it up for PM and firmware ops if not.
+	 */
+	if (!IS_ENABLED(CONFIG_SMP))
+		exynos_sysram_init();
+
+#if defined(CONFIG_SMP) && defined(CONFIG_ARM_EXYNOS_CPUIDLE)
+	if (of_machine_is_compatible("samsung,exynos4210") ||
+	    of_machine_is_compatible("samsung,exynos3250"))
+		exynos_cpuidle.dev.platform_data = &cpuidle_coupled_exynos_data;
+#endif
+	if (of_machine_is_compatible("samsung,exynos4210") ||
+	    (of_machine_is_compatible("samsung,exynos4412") &&
+	     (of_machine_is_compatible("samsung,trats2") ||
+		  of_machine_is_compatible("samsung,midas") ||
+		  of_machine_is_compatible("samsung,p4note"))) ||
+	    of_machine_is_compatible("samsung,exynos3250") ||
+	    of_machine_is_compatible("samsung,exynos5250"))
+		platform_device_register(&exynos_cpuidle);
+}
+
+static char const *const exynos_dt_compat[] __initconst = {
+	"samsung,exynos3",
+	"samsung,exynos3250",
+	"samsung,exynos4",
+	"samsung,exynos4210",
+	"samsung,exynos4412",
+	"samsung,exynos5",
+	"samsung,exynos5250",
+	"samsung,exynos5260",
+	"samsung,exynos5420",
+	NULL
+};
+
+static void __init exynos_dt_fixup(void)
+{
+	/*
+	 * Some versions of uboot pass garbage entries in the memory node,
+	 * use the old CONFIG_ARM_NR_BANKS
+	 */
+	of_fdt_limit_memory(8);
+}
+
+DT_MACHINE_START(EXYNOS_DT, "Samsung Exynos (Flattened Device Tree)")
+	.l2c_aux_val	= 0x08400000,
+	.l2c_aux_mask	= 0xf60fffff,
+	.smp		= smp_ops(exynos_smp_ops),
+	.map_io		= exynos_init_io,
+	.init_early	= exynos_firmware_init,
+	.init_irq	= exynos_init_irq,
+	.init_machine	= exynos_dt_machine_init,
+	.init_late	= exynos_pm_init,
+	.dt_compat	= exynos_dt_compat,
+	.dt_fixup	= exynos_dt_fixup,
+MACHINE_END