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, 273 insertions, 0 deletions

diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
new file mode 100644
index 000000000..1ee5e9941
--- /dev/null
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas IRQC Driver
+ *
+ *  Copyright (C) 2013 Magnus Damm
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#define IRQC_IRQ_MAX	32	/* maximum 32 interrupts per driver instance */
+
+#define IRQC_REQ_STS	0x00	/* Interrupt Request Status Register */
+#define IRQC_EN_STS	0x04	/* Interrupt Enable Status Register */
+#define IRQC_EN_SET	0x08	/* Interrupt Enable Set Register */
+#define IRQC_INT_CPU_BASE(n) (0x000 + ((n) * 0x10))
+				/* SYS-CPU vs. RT-CPU */
+#define DETECT_STATUS	0x100	/* IRQn Detect Status Register */
+#define MONITOR		0x104	/* IRQn Signal Level Monitor Register */
+#define HLVL_STS	0x108	/* IRQn High Level Detect Status Register */
+#define LLVL_STS	0x10c	/* IRQn Low Level Detect Status Register */
+#define S_R_EDGE_STS	0x110	/* IRQn Sync Rising Edge Detect Status Reg. */
+#define S_F_EDGE_STS	0x114	/* IRQn Sync Falling Edge Detect Status Reg. */
+#define A_R_EDGE_STS	0x118	/* IRQn Async Rising Edge Detect Status Reg. */
+#define A_F_EDGE_STS	0x11c	/* IRQn Async Falling Edge Detect Status Reg. */
+#define CHTEN_STS	0x120	/* Chattering Reduction Status Register */
+#define IRQC_CONFIG(n) (0x180 + ((n) * 0x04))
+				/* IRQn Configuration Register */
+
+struct irqc_irq {
+	int hw_irq;
+	int requested_irq;
+	struct irqc_priv *p;
+};
+
+struct irqc_priv {
+	void __iomem *iomem;
+	void __iomem *cpu_int_base;
+	struct irqc_irq irq[IRQC_IRQ_MAX];
+	unsigned int number_of_irqs;
+	struct device *dev;
+	struct irq_chip_generic *gc;
+	struct irq_domain *irq_domain;
+	atomic_t wakeup_path;
+};
+
+static struct irqc_priv *irq_data_to_priv(struct irq_data *data)
+{
+	return data->domain->host_data;
+}
+
+static void irqc_dbg(struct irqc_irq *i, char *str)
+{
+	dev_dbg(i->p->dev, "%s (%d:%d)\n", str, i->requested_irq, i->hw_irq);
+}
+
+static unsigned char irqc_sense[IRQ_TYPE_SENSE_MASK + 1] = {
+	[IRQ_TYPE_LEVEL_LOW]	= 0x01,
+	[IRQ_TYPE_LEVEL_HIGH]	= 0x02,
+	[IRQ_TYPE_EDGE_FALLING]	= 0x04,	/* Synchronous */
+	[IRQ_TYPE_EDGE_RISING]	= 0x08,	/* Synchronous */
+	[IRQ_TYPE_EDGE_BOTH]	= 0x0c,	/* Synchronous */
+};
+
+static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
+{
+	struct irqc_priv *p = irq_data_to_priv(d);
+	int hw_irq = irqd_to_hwirq(d);
+	unsigned char value = irqc_sense[type & IRQ_TYPE_SENSE_MASK];
+	u32 tmp;
+
+	irqc_dbg(&p->irq[hw_irq], "sense");
+
+	if (!value)
+		return -EINVAL;
+
+	tmp = ioread32(p->iomem + IRQC_CONFIG(hw_irq));
+	tmp &= ~0x3f;
+	tmp |= value;
+	iowrite32(tmp, p->iomem + IRQC_CONFIG(hw_irq));
+	return 0;
+}
+
+static int irqc_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+	struct irqc_priv *p = irq_data_to_priv(d);
+	int hw_irq = irqd_to_hwirq(d);
+
+	irq_set_irq_wake(p->irq[hw_irq].requested_irq, on);
+	if (on)
+		atomic_inc(&p->wakeup_path);
+	else
+		atomic_dec(&p->wakeup_path);
+
+	return 0;
+}
+
+static irqreturn_t irqc_irq_handler(int irq, void *dev_id)
+{
+	struct irqc_irq *i = dev_id;
+	struct irqc_priv *p = i->p;
+	u32 bit = BIT(i->hw_irq);
+
+	irqc_dbg(i, "demux1");
+
+	if (ioread32(p->iomem + DETECT_STATUS) & bit) {
+		iowrite32(bit, p->iomem + DETECT_STATUS);
+		irqc_dbg(i, "demux2");
+		generic_handle_domain_irq(p->irq_domain, i->hw_irq);
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+static int irqc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const char *name = dev_name(dev);
+	struct irqc_priv *p;
+	int ret;
+	int k;
+
+	p = devm_kzalloc(dev, sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	p->dev = dev;
+	platform_set_drvdata(pdev, p);
+
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	/* allow any number of IRQs between 1 and IRQC_IRQ_MAX */
+	for (k = 0; k < IRQC_IRQ_MAX; k++) {
+		ret = platform_get_irq_optional(pdev, k);
+		if (ret == -ENXIO)
+			break;
+		if (ret < 0)
+			goto err_runtime_pm_disable;
+
+		p->irq[k].p = p;
+		p->irq[k].hw_irq = k;
+		p->irq[k].requested_irq = ret;
+	}
+
+	p->number_of_irqs = k;
+	if (p->number_of_irqs < 1) {
+		dev_err(dev, "not enough IRQ resources\n");
+		ret = -EINVAL;
+		goto err_runtime_pm_disable;
+	}
+
+	/* ioremap IOMEM and setup read/write callbacks */
+	p->iomem = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(p->iomem)) {
+		ret = PTR_ERR(p->iomem);
+		goto err_runtime_pm_disable;
+	}
+
+	p->cpu_int_base = p->iomem + IRQC_INT_CPU_BASE(0); /* SYS-SPI */
+
+	p->irq_domain = irq_domain_add_linear(dev->of_node, p->number_of_irqs,
+					      &irq_generic_chip_ops, p);
+	if (!p->irq_domain) {
+		ret = -ENXIO;
+		dev_err(dev, "cannot initialize irq domain\n");
+		goto err_runtime_pm_disable;
+	}
+
+	ret = irq_alloc_domain_generic_chips(p->irq_domain, p->number_of_irqs,
+					     1, "irqc", handle_level_irq,
+					     0, 0, IRQ_GC_INIT_NESTED_LOCK);
+	if (ret) {
+		dev_err(dev, "cannot allocate generic chip\n");
+		goto err_remove_domain;
+	}
+
+	p->gc = irq_get_domain_generic_chip(p->irq_domain, 0);
+	p->gc->reg_base = p->cpu_int_base;
+	p->gc->chip_types[0].regs.enable = IRQC_EN_SET;
+	p->gc->chip_types[0].regs.disable = IRQC_EN_STS;
+	p->gc->chip_types[0].chip.irq_mask = irq_gc_mask_disable_reg;
+	p->gc->chip_types[0].chip.irq_unmask = irq_gc_unmask_enable_reg;
+	p->gc->chip_types[0].chip.irq_set_type	= irqc_irq_set_type;
+	p->gc->chip_types[0].chip.irq_set_wake	= irqc_irq_set_wake;
+	p->gc->chip_types[0].chip.flags	= IRQCHIP_MASK_ON_SUSPEND;
+
+	irq_domain_set_pm_device(p->irq_domain, dev);
+
+	/* request interrupts one by one */
+	for (k = 0; k < p->number_of_irqs; k++) {
+		if (devm_request_irq(dev, p->irq[k].requested_irq,
+				     irqc_irq_handler, 0, name, &p->irq[k])) {
+			dev_err(dev, "failed to request IRQ\n");
+			ret = -ENOENT;
+			goto err_remove_domain;
+		}
+	}
+
+	dev_info(dev, "driving %d irqs\n", p->number_of_irqs);
+
+	return 0;
+
+err_remove_domain:
+	irq_domain_remove(p->irq_domain);
+err_runtime_pm_disable:
+	pm_runtime_put(dev);
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static int irqc_remove(struct platform_device *pdev)
+{
+	struct irqc_priv *p = platform_get_drvdata(pdev);
+
+	irq_domain_remove(p->irq_domain);
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+static int __maybe_unused irqc_suspend(struct device *dev)
+{
+	struct irqc_priv *p = dev_get_drvdata(dev);
+
+	if (atomic_read(&p->wakeup_path))
+		device_set_wakeup_path(dev);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(irqc_pm_ops, irqc_suspend, NULL);
+
+static const struct of_device_id irqc_dt_ids[] = {
+	{ .compatible = "renesas,irqc", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, irqc_dt_ids);
+
+static struct platform_driver irqc_device_driver = {
+	.probe		= irqc_probe,
+	.remove		= irqc_remove,
+	.driver		= {
+		.name	= "renesas_irqc",
+		.of_match_table	= irqc_dt_ids,
+		.pm	= &irqc_pm_ops,
+	}
+};
+
+static int __init irqc_init(void)
+{
+	return platform_driver_register(&irqc_device_driver);
+}
+postcore_initcall(irqc_init);
+
+static void __exit irqc_exit(void)
+{
+	platform_driver_unregister(&irqc_device_driver);
+}
+module_exit(irqc_exit);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("Renesas IRQC Driver");
+MODULE_LICENSE("GPL v2");