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, 214 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-menz127.c b/drivers/gpio/gpio-menz127.c
new file mode 100644
index 000000000..a035a9bcb
--- /dev/null
+++ b/drivers/gpio/gpio-menz127.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MEN 16Z127 GPIO driver
+ *
+ * Copyright (C) 2016 MEN Mikroelektronik GmbH (www.men.de)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/mcb.h>
+#include <linux/bitops.h>
+#include <linux/gpio/driver.h>
+
+#define MEN_Z127_CTRL	0x00
+#define MEN_Z127_PSR	0x04
+#define MEN_Z127_IRQR	0x08
+#define MEN_Z127_GPIODR	0x0c
+#define MEN_Z127_IER1	0x10
+#define MEN_Z127_IER2	0x14
+#define MEN_Z127_DBER	0x18
+#define MEN_Z127_ODER	0x1C
+#define GPIO_TO_DBCNT_REG(gpio)	((gpio * 4) + 0x80)
+
+#define MEN_Z127_DB_MIN_US	50
+/* 16 bit compare register. Each bit represents 50us */
+#define MEN_Z127_DB_MAX_US	(0xffff * MEN_Z127_DB_MIN_US)
+#define MEN_Z127_DB_IN_RANGE(db)	((db >= MEN_Z127_DB_MIN_US) && \
+					 (db <= MEN_Z127_DB_MAX_US))
+
+struct men_z127_gpio {
+	struct gpio_chip gc;
+	void __iomem *reg_base;
+	struct resource *mem;
+};
+
+static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio,
+			     unsigned debounce)
+{
+	struct men_z127_gpio *priv = gpiochip_get_data(gc);
+	struct device *dev = gc->parent;
+	unsigned int rnd;
+	u32 db_en, db_cnt;
+
+	if (!MEN_Z127_DB_IN_RANGE(debounce)) {
+		dev_err(dev, "debounce value %u out of range", debounce);
+		return -EINVAL;
+	}
+
+	if (debounce > 0) {
+		/* round up or down depending on MSB-1 */
+		rnd = fls(debounce) - 1;
+
+		if (rnd && (debounce & BIT(rnd - 1)))
+			debounce = roundup(debounce, MEN_Z127_DB_MIN_US);
+		else
+			debounce = rounddown(debounce, MEN_Z127_DB_MIN_US);
+
+		if (debounce > MEN_Z127_DB_MAX_US)
+			debounce = MEN_Z127_DB_MAX_US;
+
+		/* 50us per register unit */
+		debounce /= 50;
+	}
+
+	raw_spin_lock(&gc->bgpio_lock);
+
+	db_en = readl(priv->reg_base + MEN_Z127_DBER);
+
+	if (debounce == 0) {
+		db_en &= ~BIT(gpio);
+		db_cnt = 0;
+	} else {
+		db_en |= BIT(gpio);
+		db_cnt = debounce;
+	}
+
+	writel(db_en, priv->reg_base + MEN_Z127_DBER);
+	writel(db_cnt, priv->reg_base + GPIO_TO_DBCNT_REG(gpio));
+
+	raw_spin_unlock(&gc->bgpio_lock);
+
+	return 0;
+}
+
+static int men_z127_set_single_ended(struct gpio_chip *gc,
+				     unsigned offset,
+				     enum pin_config_param param)
+{
+	struct men_z127_gpio *priv = gpiochip_get_data(gc);
+	u32 od_en;
+
+	raw_spin_lock(&gc->bgpio_lock);
+	od_en = readl(priv->reg_base + MEN_Z127_ODER);
+
+	if (param == PIN_CONFIG_DRIVE_OPEN_DRAIN)
+		od_en |= BIT(offset);
+	else
+		/* Implicitly PIN_CONFIG_DRIVE_PUSH_PULL */
+		od_en &= ~BIT(offset);
+
+	writel(od_en, priv->reg_base + MEN_Z127_ODER);
+	raw_spin_unlock(&gc->bgpio_lock);
+
+	return 0;
+}
+
+static int men_z127_set_config(struct gpio_chip *gc, unsigned offset,
+			       unsigned long config)
+{
+	enum pin_config_param param = pinconf_to_config_param(config);
+
+	switch (param) {
+	case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+	case PIN_CONFIG_DRIVE_PUSH_PULL:
+		return men_z127_set_single_ended(gc, offset, param);
+
+	case PIN_CONFIG_INPUT_DEBOUNCE:
+		return men_z127_debounce(gc, offset,
+			pinconf_to_config_argument(config));
+
+	default:
+		break;
+	}
+
+	return -ENOTSUPP;
+}
+
+static int men_z127_probe(struct mcb_device *mdev,
+			  const struct mcb_device_id *id)
+{
+	struct men_z127_gpio *men_z127_gpio;
+	struct device *dev = &mdev->dev;
+	int ret;
+
+	men_z127_gpio = devm_kzalloc(dev, sizeof(struct men_z127_gpio),
+				     GFP_KERNEL);
+	if (!men_z127_gpio)
+		return -ENOMEM;
+
+	men_z127_gpio->mem = mcb_request_mem(mdev, dev_name(dev));
+	if (IS_ERR(men_z127_gpio->mem)) {
+		dev_err(dev, "failed to request device memory");
+		return PTR_ERR(men_z127_gpio->mem);
+	}
+
+	men_z127_gpio->reg_base = ioremap(men_z127_gpio->mem->start,
+					  resource_size(men_z127_gpio->mem));
+	if (men_z127_gpio->reg_base == NULL) {
+		ret = -ENXIO;
+		goto err_release;
+	}
+
+	mcb_set_drvdata(mdev, men_z127_gpio);
+
+	ret = bgpio_init(&men_z127_gpio->gc, &mdev->dev, 4,
+			 men_z127_gpio->reg_base + MEN_Z127_PSR,
+			 men_z127_gpio->reg_base + MEN_Z127_CTRL,
+			 NULL,
+			 men_z127_gpio->reg_base + MEN_Z127_GPIODR,
+			 NULL, 0);
+	if (ret)
+		goto err_unmap;
+
+	men_z127_gpio->gc.set_config = men_z127_set_config;
+
+	ret = gpiochip_add_data(&men_z127_gpio->gc, men_z127_gpio);
+	if (ret) {
+		dev_err(dev, "failed to register MEN 16Z127 GPIO controller");
+		goto err_unmap;
+	}
+
+	dev_info(dev, "MEN 16Z127 GPIO driver registered");
+
+	return 0;
+
+err_unmap:
+	iounmap(men_z127_gpio->reg_base);
+err_release:
+	mcb_release_mem(men_z127_gpio->mem);
+	return ret;
+}
+
+static void men_z127_remove(struct mcb_device *mdev)
+{
+	struct men_z127_gpio *men_z127_gpio = mcb_get_drvdata(mdev);
+
+	gpiochip_remove(&men_z127_gpio->gc);
+	iounmap(men_z127_gpio->reg_base);
+	mcb_release_mem(men_z127_gpio->mem);
+}
+
+static const struct mcb_device_id men_z127_ids[] = {
+	{ .device = 0x7f },
+	{ }
+};
+MODULE_DEVICE_TABLE(mcb, men_z127_ids);
+
+static struct mcb_driver men_z127_driver = {
+	.driver = {
+		.name = "z127-gpio",
+	},
+	.probe = men_z127_probe,
+	.remove = men_z127_remove,
+	.id_table = men_z127_ids,
+};
+module_mcb_driver(men_z127_driver);
+
+MODULE_AUTHOR("Andreas Werner <andreas.werner@men.de>");
+MODULE_DESCRIPTION("MEN 16z127 GPIO Controller");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("mcb:16z127");
+MODULE_IMPORT_NS(MCB);