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, 206 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-idt3243x.c b/drivers/gpio/gpio-idt3243x.c
new file mode 100644
index 000000000..1cafdf46f
--- /dev/null
+++ b/drivers/gpio/gpio-idt3243x.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Driver for IDT/Renesas 79RC3243x Interrupt Controller  */
+
+#include <linux/bitops.h>
+#include <linux/gpio/driver.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+
+#define IDT_PIC_IRQ_PEND	0x00
+#define IDT_PIC_IRQ_MASK	0x08
+
+#define IDT_GPIO_DIR		0x00
+#define IDT_GPIO_DATA		0x04
+#define IDT_GPIO_ILEVEL		0x08
+#define IDT_GPIO_ISTAT		0x0C
+
+struct idt_gpio_ctrl {
+	struct gpio_chip gc;
+	void __iomem *pic;
+	void __iomem *gpio;
+	u32 mask_cache;
+};
+
+static void idt_gpio_dispatch(struct irq_desc *desc)
+{
+	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+	struct irq_chip *host_chip = irq_desc_get_chip(desc);
+	unsigned int bit, virq;
+	unsigned long pending;
+
+	chained_irq_enter(host_chip, desc);
+
+	pending = readl(ctrl->pic + IDT_PIC_IRQ_PEND);
+	pending &= ~ctrl->mask_cache;
+	for_each_set_bit(bit, &pending, gc->ngpio) {
+		virq = irq_linear_revmap(gc->irq.domain, bit);
+		if (virq)
+			generic_handle_irq(virq);
+	}
+
+	chained_irq_exit(host_chip, desc);
+}
+
+static int idt_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+	unsigned int sense = flow_type & IRQ_TYPE_SENSE_MASK;
+	unsigned long flags;
+	u32 ilevel;
+
+	/* hardware only supports level triggered */
+	if (sense == IRQ_TYPE_NONE || (sense & IRQ_TYPE_EDGE_BOTH))
+		return -EINVAL;
+
+	raw_spin_lock_irqsave(&gc->bgpio_lock, flags);
+
+	ilevel = readl(ctrl->gpio + IDT_GPIO_ILEVEL);
+	if (sense & IRQ_TYPE_LEVEL_HIGH)
+		ilevel |= BIT(d->hwirq);
+	else if (sense & IRQ_TYPE_LEVEL_LOW)
+		ilevel &= ~BIT(d->hwirq);
+
+	writel(ilevel, ctrl->gpio + IDT_GPIO_ILEVEL);
+	irq_set_handler_locked(d, handle_level_irq);
+
+	raw_spin_unlock_irqrestore(&gc->bgpio_lock, flags);
+	return 0;
+}
+
+static void idt_gpio_ack(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+
+	writel(~BIT(d->hwirq), ctrl->gpio + IDT_GPIO_ISTAT);
+}
+
+static void idt_gpio_mask(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&gc->bgpio_lock, flags);
+
+	ctrl->mask_cache |= BIT(d->hwirq);
+	writel(ctrl->mask_cache, ctrl->pic + IDT_PIC_IRQ_MASK);
+
+	raw_spin_unlock_irqrestore(&gc->bgpio_lock, flags);
+}
+
+static void idt_gpio_unmask(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&gc->bgpio_lock, flags);
+
+	ctrl->mask_cache &= ~BIT(d->hwirq);
+	writel(ctrl->mask_cache, ctrl->pic + IDT_PIC_IRQ_MASK);
+
+	raw_spin_unlock_irqrestore(&gc->bgpio_lock, flags);
+}
+
+static int idt_gpio_irq_init_hw(struct gpio_chip *gc)
+{
+	struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
+
+	/* Mask interrupts. */
+	ctrl->mask_cache = 0xffffffff;
+	writel(ctrl->mask_cache, ctrl->pic + IDT_PIC_IRQ_MASK);
+
+	return 0;
+}
+
+static struct irq_chip idt_gpio_irqchip = {
+	.name = "IDTGPIO",
+	.irq_mask = idt_gpio_mask,
+	.irq_ack = idt_gpio_ack,
+	.irq_unmask = idt_gpio_unmask,
+	.irq_set_type = idt_gpio_irq_set_type
+};
+
+static int idt_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct gpio_irq_chip *girq;
+	struct idt_gpio_ctrl *ctrl;
+	int parent_irq;
+	int ngpios;
+	int ret;
+
+
+	ctrl = devm_kzalloc(dev, sizeof(*ctrl), GFP_KERNEL);
+	if (!ctrl)
+		return -ENOMEM;
+
+	ctrl->gpio = devm_platform_ioremap_resource_byname(pdev, "gpio");
+	if (IS_ERR(ctrl->gpio))
+		return PTR_ERR(ctrl->gpio);
+
+	ctrl->gc.parent = dev;
+
+	ret = bgpio_init(&ctrl->gc, &pdev->dev, 4, ctrl->gpio + IDT_GPIO_DATA,
+			 NULL, NULL, ctrl->gpio + IDT_GPIO_DIR, NULL, 0);
+	if (ret) {
+		dev_err(dev, "bgpio_init failed\n");
+		return ret;
+	}
+
+	ret = device_property_read_u32(dev, "ngpios", &ngpios);
+	if (!ret)
+		ctrl->gc.ngpio = ngpios;
+
+	if (device_property_read_bool(dev, "interrupt-controller")) {
+		ctrl->pic = devm_platform_ioremap_resource_byname(pdev, "pic");
+		if (IS_ERR(ctrl->pic))
+			return PTR_ERR(ctrl->pic);
+
+		parent_irq = platform_get_irq(pdev, 0);
+		if (parent_irq < 0)
+			return parent_irq;
+
+		girq = &ctrl->gc.irq;
+		girq->chip = &idt_gpio_irqchip;
+		girq->init_hw = idt_gpio_irq_init_hw;
+		girq->parent_handler = idt_gpio_dispatch;
+		girq->num_parents = 1;
+		girq->parents = devm_kcalloc(dev, girq->num_parents,
+					     sizeof(*girq->parents),
+					     GFP_KERNEL);
+		if (!girq->parents)
+			return -ENOMEM;
+
+		girq->parents[0] = parent_irq;
+		girq->default_type = IRQ_TYPE_NONE;
+		girq->handler = handle_bad_irq;
+	}
+
+	return devm_gpiochip_add_data(&pdev->dev, &ctrl->gc, ctrl);
+}
+
+static const struct of_device_id idt_gpio_of_match[] = {
+	{ .compatible = "idt,32434-gpio" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, idt_gpio_of_match);
+
+static struct platform_driver idt_gpio_driver = {
+	.probe = idt_gpio_probe,
+	.driver = {
+		.name = "idt3243x-gpio",
+		.of_match_table = idt_gpio_of_match,
+	},
+};
+module_platform_driver(idt_gpio_driver);
+
+MODULE_DESCRIPTION("IDT 79RC3243x GPIO/PIC Driver");
+MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
+MODULE_LICENSE("GPL");