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, 359 insertions, 0 deletions

diff --git a/drivers/irqchip/irq-mtk-cirq.c b/drivers/irqchip/irq-mtk-cirq.c
new file mode 100644
index 000000000..76bc0283e
--- /dev/null
+++ b/drivers/irqchip/irq-mtk-cirq.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Youlin.Pei <youlin.pei@mediatek.com>
+ */
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/syscore_ops.h>
+
+enum mtk_cirq_regoffs_index {
+	CIRQ_STA,
+	CIRQ_ACK,
+	CIRQ_MASK_SET,
+	CIRQ_MASK_CLR,
+	CIRQ_SENS_SET,
+	CIRQ_SENS_CLR,
+	CIRQ_POL_SET,
+	CIRQ_POL_CLR,
+	CIRQ_CONTROL
+};
+
+static const u32 mtk_cirq_regoffs_v1[] = {
+	[CIRQ_STA]	= 0x0,
+	[CIRQ_ACK]	= 0x40,
+	[CIRQ_MASK_SET]	= 0xc0,
+	[CIRQ_MASK_CLR]	= 0x100,
+	[CIRQ_SENS_SET]	= 0x180,
+	[CIRQ_SENS_CLR]	= 0x1c0,
+	[CIRQ_POL_SET]	= 0x240,
+	[CIRQ_POL_CLR]	= 0x280,
+	[CIRQ_CONTROL]	= 0x300,
+};
+
+static const u32 mtk_cirq_regoffs_v2[] = {
+	[CIRQ_STA]	= 0x0,
+	[CIRQ_ACK]	= 0x80,
+	[CIRQ_MASK_SET]	= 0x180,
+	[CIRQ_MASK_CLR]	= 0x200,
+	[CIRQ_SENS_SET]	= 0x300,
+	[CIRQ_SENS_CLR]	= 0x380,
+	[CIRQ_POL_SET]	= 0x480,
+	[CIRQ_POL_CLR]	= 0x500,
+	[CIRQ_CONTROL]	= 0x600,
+};
+
+#define CIRQ_EN	0x1
+#define CIRQ_EDGE	0x2
+#define CIRQ_FLUSH	0x4
+
+struct mtk_cirq_chip_data {
+	void __iomem *base;
+	unsigned int ext_irq_start;
+	unsigned int ext_irq_end;
+	const u32 *offsets;
+	struct irq_domain *domain;
+};
+
+static struct mtk_cirq_chip_data *cirq_data;
+
+static void __iomem *mtk_cirq_reg(struct mtk_cirq_chip_data *chip_data,
+				  enum mtk_cirq_regoffs_index idx)
+{
+	return chip_data->base + chip_data->offsets[idx];
+}
+
+static void __iomem *mtk_cirq_irq_reg(struct mtk_cirq_chip_data *chip_data,
+				      enum mtk_cirq_regoffs_index idx,
+				      unsigned int cirq_num)
+{
+	return mtk_cirq_reg(chip_data, idx) + (cirq_num / 32) * 4;
+}
+
+static void mtk_cirq_write_mask(struct irq_data *data, enum mtk_cirq_regoffs_index idx)
+{
+	struct mtk_cirq_chip_data *chip_data = data->chip_data;
+	unsigned int cirq_num = data->hwirq;
+	u32 mask = 1 << (cirq_num % 32);
+
+	writel_relaxed(mask, mtk_cirq_irq_reg(chip_data, idx, cirq_num));
+}
+
+static void mtk_cirq_mask(struct irq_data *data)
+{
+	mtk_cirq_write_mask(data, CIRQ_MASK_SET);
+	irq_chip_mask_parent(data);
+}
+
+static void mtk_cirq_unmask(struct irq_data *data)
+{
+	mtk_cirq_write_mask(data, CIRQ_MASK_CLR);
+	irq_chip_unmask_parent(data);
+}
+
+static int mtk_cirq_set_type(struct irq_data *data, unsigned int type)
+{
+	int ret;
+
+	switch (type & IRQ_TYPE_SENSE_MASK) {
+	case IRQ_TYPE_EDGE_FALLING:
+		mtk_cirq_write_mask(data, CIRQ_POL_CLR);
+		mtk_cirq_write_mask(data, CIRQ_SENS_CLR);
+		break;
+	case IRQ_TYPE_EDGE_RISING:
+		mtk_cirq_write_mask(data, CIRQ_POL_SET);
+		mtk_cirq_write_mask(data, CIRQ_SENS_CLR);
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		mtk_cirq_write_mask(data, CIRQ_POL_CLR);
+		mtk_cirq_write_mask(data, CIRQ_SENS_SET);
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		mtk_cirq_write_mask(data, CIRQ_POL_SET);
+		mtk_cirq_write_mask(data, CIRQ_SENS_SET);
+		break;
+	default:
+		break;
+	}
+
+	data = data->parent_data;
+	ret = data->chip->irq_set_type(data, type);
+	return ret;
+}
+
+static struct irq_chip mtk_cirq_chip = {
+	.name			= "MT_CIRQ",
+	.irq_mask		= mtk_cirq_mask,
+	.irq_unmask		= mtk_cirq_unmask,
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_set_type		= mtk_cirq_set_type,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+};
+
+static int mtk_cirq_domain_translate(struct irq_domain *d,
+				     struct irq_fwspec *fwspec,
+				     unsigned long *hwirq,
+				     unsigned int *type)
+{
+	if (is_of_node(fwspec->fwnode)) {
+		if (fwspec->param_count != 3)
+			return -EINVAL;
+
+		/* No PPI should point to this domain */
+		if (fwspec->param[0] != 0)
+			return -EINVAL;
+
+		/* cirq support irq number check */
+		if (fwspec->param[1] < cirq_data->ext_irq_start ||
+		    fwspec->param[1] > cirq_data->ext_irq_end)
+			return -EINVAL;
+
+		*hwirq = fwspec->param[1] - cirq_data->ext_irq_start;
+		*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int mtk_cirq_domain_alloc(struct irq_domain *domain, unsigned int virq,
+				 unsigned int nr_irqs, void *arg)
+{
+	int ret;
+	irq_hw_number_t hwirq;
+	unsigned int type;
+	struct irq_fwspec *fwspec = arg;
+	struct irq_fwspec parent_fwspec = *fwspec;
+
+	ret = mtk_cirq_domain_translate(domain, fwspec, &hwirq, &type);
+	if (ret)
+		return ret;
+
+	if (WARN_ON(nr_irqs != 1))
+		return -EINVAL;
+
+	irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
+				      &mtk_cirq_chip,
+				      domain->host_data);
+
+	parent_fwspec.fwnode = domain->parent->fwnode;
+	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
+					    &parent_fwspec);
+}
+
+static const struct irq_domain_ops cirq_domain_ops = {
+	.translate	= mtk_cirq_domain_translate,
+	.alloc		= mtk_cirq_domain_alloc,
+	.free		= irq_domain_free_irqs_common,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int mtk_cirq_suspend(void)
+{
+	void __iomem *reg;
+	u32 value, mask;
+	unsigned int irq, hwirq_num;
+	bool pending, masked;
+	int i, pendret, maskret;
+
+	/*
+	 * When external interrupts happened, CIRQ will record the status
+	 * even CIRQ is not enabled. When execute flush command, CIRQ will
+	 * resend the signals according to the status. So if don't clear the
+	 * status, CIRQ will resend the wrong signals.
+	 *
+	 * arch_suspend_disable_irqs() will be called before CIRQ suspend
+	 * callback. If clear all the status simply, the external interrupts
+	 * which happened between arch_suspend_disable_irqs and CIRQ suspend
+	 * callback will be lost. Using following steps to avoid this issue;
+	 *
+	 * - Iterate over all the CIRQ supported interrupts;
+	 * - For each interrupt, inspect its pending and masked status at GIC
+	 *   level;
+	 * - If pending and unmasked, it happened between
+	 *   arch_suspend_disable_irqs and CIRQ suspend callback, don't ACK
+	 *   it. Otherwise, ACK it.
+	 */
+	hwirq_num = cirq_data->ext_irq_end - cirq_data->ext_irq_start + 1;
+	for (i = 0; i < hwirq_num; i++) {
+		irq = irq_find_mapping(cirq_data->domain, i);
+		if (irq) {
+			pendret = irq_get_irqchip_state(irq,
+							IRQCHIP_STATE_PENDING,
+							&pending);
+
+			maskret = irq_get_irqchip_state(irq,
+							IRQCHIP_STATE_MASKED,
+							&masked);
+
+			if (pendret == 0 && maskret == 0 &&
+			    (pending && !masked))
+				continue;
+		}
+
+		reg = mtk_cirq_irq_reg(cirq_data, CIRQ_ACK, i);
+		mask = 1 << (i % 32);
+		writel_relaxed(mask, reg);
+	}
+
+	/* set edge_only mode, record edge-triggerd interrupts */
+	/* enable cirq */
+	reg = mtk_cirq_reg(cirq_data, CIRQ_CONTROL);
+	value = readl_relaxed(reg);
+	value |= (CIRQ_EDGE | CIRQ_EN);
+	writel_relaxed(value, reg);
+
+	return 0;
+}
+
+static void mtk_cirq_resume(void)
+{
+	void __iomem *reg = mtk_cirq_reg(cirq_data, CIRQ_CONTROL);
+	u32 value;
+
+	/* flush recorded interrupts, will send signals to parent controller */
+	value = readl_relaxed(reg);
+	writel_relaxed(value | CIRQ_FLUSH, reg);
+
+	/* disable cirq */
+	value = readl_relaxed(reg);
+	value &= ~(CIRQ_EDGE | CIRQ_EN);
+	writel_relaxed(value, reg);
+}
+
+static struct syscore_ops mtk_cirq_syscore_ops = {
+	.suspend	= mtk_cirq_suspend,
+	.resume		= mtk_cirq_resume,
+};
+
+static void mtk_cirq_syscore_init(void)
+{
+	register_syscore_ops(&mtk_cirq_syscore_ops);
+}
+#else
+static inline void mtk_cirq_syscore_init(void) {}
+#endif
+
+static const struct of_device_id mtk_cirq_of_match[] = {
+	{ .compatible = "mediatek,mt2701-cirq", .data = &mtk_cirq_regoffs_v1 },
+	{ .compatible = "mediatek,mt8135-cirq", .data = &mtk_cirq_regoffs_v1 },
+	{ .compatible = "mediatek,mt8173-cirq", .data = &mtk_cirq_regoffs_v1 },
+	{ .compatible = "mediatek,mt8192-cirq", .data = &mtk_cirq_regoffs_v2 },
+	{ /* sentinel */ }
+};
+
+static int __init mtk_cirq_of_init(struct device_node *node,
+				   struct device_node *parent)
+{
+	struct irq_domain *domain, *domain_parent;
+	const struct of_device_id *match;
+	unsigned int irq_num;
+	int ret;
+
+	domain_parent = irq_find_host(parent);
+	if (!domain_parent) {
+		pr_err("mtk_cirq: interrupt-parent not found\n");
+		return -EINVAL;
+	}
+
+	cirq_data = kzalloc(sizeof(*cirq_data), GFP_KERNEL);
+	if (!cirq_data)
+		return -ENOMEM;
+
+	cirq_data->base = of_iomap(node, 0);
+	if (!cirq_data->base) {
+		pr_err("mtk_cirq: unable to map cirq register\n");
+		ret = -ENXIO;
+		goto out_free;
+	}
+
+	ret = of_property_read_u32_index(node, "mediatek,ext-irq-range", 0,
+					 &cirq_data->ext_irq_start);
+	if (ret)
+		goto out_unmap;
+
+	ret = of_property_read_u32_index(node, "mediatek,ext-irq-range", 1,
+					 &cirq_data->ext_irq_end);
+	if (ret)
+		goto out_unmap;
+
+	match = of_match_node(mtk_cirq_of_match, node);
+	if (!match) {
+		ret = -ENODEV;
+		goto out_unmap;
+	}
+	cirq_data->offsets = match->data;
+
+	irq_num = cirq_data->ext_irq_end - cirq_data->ext_irq_start + 1;
+	domain = irq_domain_add_hierarchy(domain_parent, 0,
+					  irq_num, node,
+					  &cirq_domain_ops, cirq_data);
+	if (!domain) {
+		ret = -ENOMEM;
+		goto out_unmap;
+	}
+	cirq_data->domain = domain;
+
+	mtk_cirq_syscore_init();
+
+	return 0;
+
+out_unmap:
+	iounmap(cirq_data->base);
+out_free:
+	kfree(cirq_data);
+	return ret;
+}
+
+IRQCHIP_DECLARE(mtk_cirq, "mediatek,mtk-cirq", mtk_cirq_of_init);