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, 308 insertions, 0 deletions

diff --git a/drivers/mfd/tqmx86.c b/drivers/mfd/tqmx86.c
new file mode 100644
index 000000000..7ae906ff8
--- /dev/null
+++ b/drivers/mfd/tqmx86.c
@@ -0,0 +1,308 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * TQ-Systems PLD MFD core driver, based on vendor driver by
+ * Vadim V.Vlasov <vvlasov@dev.rtsoft.ru>
+ *
+ * Copyright (c) 2015 TQ-Systems GmbH
+ * Copyright (c) 2019 Andrew Lunn <andrew@lunn.ch>
+ */
+
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/platform_data/i2c-ocores.h>
+#include <linux/platform_device.h>
+
+#define TQMX86_IOBASE	0x160
+#define TQMX86_IOSIZE	0x3f
+#define TQMX86_IOBASE_I2C	0x1a0
+#define TQMX86_IOSIZE_I2C	0xa
+#define TQMX86_IOBASE_WATCHDOG	0x18b
+#define TQMX86_IOSIZE_WATCHDOG	0x2
+#define TQMX86_IOBASE_GPIO	0x18d
+#define TQMX86_IOSIZE_GPIO	0x4
+
+#define TQMX86_REG_BOARD_ID	0x20
+#define TQMX86_REG_BOARD_ID_E38M	1
+#define TQMX86_REG_BOARD_ID_50UC	2
+#define TQMX86_REG_BOARD_ID_E38C	3
+#define TQMX86_REG_BOARD_ID_60EB	4
+#define TQMX86_REG_BOARD_ID_E39M	5
+#define TQMX86_REG_BOARD_ID_E39C	6
+#define TQMX86_REG_BOARD_ID_E39x	7
+#define TQMX86_REG_BOARD_ID_70EB	8
+#define TQMX86_REG_BOARD_ID_80UC	9
+#define TQMX86_REG_BOARD_ID_110EB	11
+#define TQMX86_REG_BOARD_ID_E40M	12
+#define TQMX86_REG_BOARD_ID_E40S	13
+#define TQMX86_REG_BOARD_ID_E40C1	14
+#define TQMX86_REG_BOARD_ID_E40C2	15
+#define TQMX86_REG_BOARD_REV	0x21
+#define TQMX86_REG_IO_EXT_INT	0x26
+#define TQMX86_REG_IO_EXT_INT_NONE		0
+#define TQMX86_REG_IO_EXT_INT_7			1
+#define TQMX86_REG_IO_EXT_INT_9			2
+#define TQMX86_REG_IO_EXT_INT_12		3
+#define TQMX86_REG_IO_EXT_INT_MASK		0x3
+#define TQMX86_REG_IO_EXT_INT_GPIO_SHIFT	4
+
+#define TQMX86_REG_I2C_DETECT	0x47
+#define TQMX86_REG_I2C_DETECT_SOFT		0xa5
+#define TQMX86_REG_I2C_INT_EN	0x49
+
+static uint gpio_irq;
+module_param(gpio_irq, uint, 0);
+MODULE_PARM_DESC(gpio_irq, "GPIO IRQ number (7, 9, 12)");
+
+static const struct resource tqmx_i2c_soft_resources[] = {
+	DEFINE_RES_IO(TQMX86_IOBASE_I2C, TQMX86_IOSIZE_I2C),
+};
+
+static const struct resource tqmx_watchdog_resources[] = {
+	DEFINE_RES_IO(TQMX86_IOBASE_WATCHDOG, TQMX86_IOSIZE_WATCHDOG),
+};
+
+/*
+ * The IRQ resource must be first, since it is updated with the
+ * configured IRQ in the probe function.
+ */
+static struct resource tqmx_gpio_resources[] = {
+	DEFINE_RES_IRQ(0),
+	DEFINE_RES_IO(TQMX86_IOBASE_GPIO, TQMX86_IOSIZE_GPIO),
+};
+
+static struct i2c_board_info tqmx86_i2c_devices[] = {
+	{
+		/* 4K EEPROM at 0x50 */
+		I2C_BOARD_INFO("24c32", 0x50),
+	},
+};
+
+static struct ocores_i2c_platform_data ocores_platform_data = {
+	.num_devices = ARRAY_SIZE(tqmx86_i2c_devices),
+	.devices = tqmx86_i2c_devices,
+};
+
+static const struct mfd_cell tqmx86_i2c_soft_dev[] = {
+	{
+		.name = "ocores-i2c",
+		.platform_data = &ocores_platform_data,
+		.pdata_size = sizeof(ocores_platform_data),
+		.resources = tqmx_i2c_soft_resources,
+		.num_resources = ARRAY_SIZE(tqmx_i2c_soft_resources),
+	},
+};
+
+static const struct mfd_cell tqmx86_devs[] = {
+	{
+		.name = "tqmx86-wdt",
+		.resources = tqmx_watchdog_resources,
+		.num_resources = ARRAY_SIZE(tqmx_watchdog_resources),
+		.ignore_resource_conflicts = true,
+	},
+	{
+		.name = "tqmx86-gpio",
+		.resources = tqmx_gpio_resources,
+		.num_resources = ARRAY_SIZE(tqmx_gpio_resources),
+		.ignore_resource_conflicts = true,
+	},
+};
+
+static const char *tqmx86_board_id_to_name(u8 board_id)
+{
+	switch (board_id) {
+	case TQMX86_REG_BOARD_ID_E38M:
+		return "TQMxE38M";
+	case TQMX86_REG_BOARD_ID_50UC:
+		return "TQMx50UC";
+	case TQMX86_REG_BOARD_ID_E38C:
+		return "TQMxE38C";
+	case TQMX86_REG_BOARD_ID_60EB:
+		return "TQMx60EB";
+	case TQMX86_REG_BOARD_ID_E39M:
+		return "TQMxE39M";
+	case TQMX86_REG_BOARD_ID_E39C:
+		return "TQMxE39C";
+	case TQMX86_REG_BOARD_ID_E39x:
+		return "TQMxE39x";
+	case TQMX86_REG_BOARD_ID_70EB:
+		return "TQMx70EB";
+	case TQMX86_REG_BOARD_ID_80UC:
+		return "TQMx80UC";
+	case TQMX86_REG_BOARD_ID_110EB:
+		return "TQMx110EB";
+	case TQMX86_REG_BOARD_ID_E40M:
+		return "TQMxE40M";
+	case TQMX86_REG_BOARD_ID_E40S:
+		return "TQMxE40S";
+	case TQMX86_REG_BOARD_ID_E40C1:
+		return "TQMxE40C1";
+	case TQMX86_REG_BOARD_ID_E40C2:
+		return "TQMxE40C2";
+	default:
+		return "Unknown";
+	}
+}
+
+static int tqmx86_board_id_to_clk_rate(struct device *dev, u8 board_id)
+{
+	switch (board_id) {
+	case TQMX86_REG_BOARD_ID_50UC:
+	case TQMX86_REG_BOARD_ID_60EB:
+	case TQMX86_REG_BOARD_ID_70EB:
+	case TQMX86_REG_BOARD_ID_80UC:
+	case TQMX86_REG_BOARD_ID_110EB:
+	case TQMX86_REG_BOARD_ID_E40M:
+	case TQMX86_REG_BOARD_ID_E40S:
+	case TQMX86_REG_BOARD_ID_E40C1:
+	case TQMX86_REG_BOARD_ID_E40C2:
+		return 24000;
+	case TQMX86_REG_BOARD_ID_E39M:
+	case TQMX86_REG_BOARD_ID_E39C:
+	case TQMX86_REG_BOARD_ID_E39x:
+		return 25000;
+	case TQMX86_REG_BOARD_ID_E38M:
+	case TQMX86_REG_BOARD_ID_E38C:
+		return 33000;
+	default:
+		dev_warn(dev, "unknown board %d, assuming 24MHz LPC clock\n",
+			 board_id);
+		return 24000;
+	}
+}
+
+static int tqmx86_probe(struct platform_device *pdev)
+{
+	u8 board_id, rev, i2c_det, io_ext_int_val;
+	struct device *dev = &pdev->dev;
+	u8 gpio_irq_cfg, readback;
+	const char *board_name;
+	void __iomem *io_base;
+	int err;
+
+	switch (gpio_irq) {
+	case 0:
+		gpio_irq_cfg = TQMX86_REG_IO_EXT_INT_NONE;
+		break;
+	case 7:
+		gpio_irq_cfg = TQMX86_REG_IO_EXT_INT_7;
+		break;
+	case 9:
+		gpio_irq_cfg = TQMX86_REG_IO_EXT_INT_9;
+		break;
+	case 12:
+		gpio_irq_cfg = TQMX86_REG_IO_EXT_INT_12;
+		break;
+	default:
+		pr_err("tqmx86: Invalid GPIO IRQ (%d)\n", gpio_irq);
+		return -EINVAL;
+	}
+
+	io_base = devm_ioport_map(dev, TQMX86_IOBASE, TQMX86_IOSIZE);
+	if (!io_base)
+		return -ENOMEM;
+
+	board_id = ioread8(io_base + TQMX86_REG_BOARD_ID);
+	board_name = tqmx86_board_id_to_name(board_id);
+	rev = ioread8(io_base + TQMX86_REG_BOARD_REV);
+
+	dev_info(dev,
+		 "Found %s - Board ID %d, PCB Revision %d, PLD Revision %d\n",
+		 board_name, board_id, rev >> 4, rev & 0xf);
+
+	i2c_det = ioread8(io_base + TQMX86_REG_I2C_DETECT);
+
+	if (gpio_irq_cfg) {
+		io_ext_int_val =
+			gpio_irq_cfg << TQMX86_REG_IO_EXT_INT_GPIO_SHIFT;
+		iowrite8(io_ext_int_val, io_base + TQMX86_REG_IO_EXT_INT);
+		readback = ioread8(io_base + TQMX86_REG_IO_EXT_INT);
+		if (readback != io_ext_int_val) {
+			dev_warn(dev, "GPIO interrupts not supported.\n");
+			return -EINVAL;
+		}
+
+		/* Assumes the IRQ resource is first. */
+		tqmx_gpio_resources[0].start = gpio_irq;
+	} else {
+		tqmx_gpio_resources[0].flags = 0;
+	}
+
+	ocores_platform_data.clock_khz = tqmx86_board_id_to_clk_rate(dev, board_id);
+
+	if (i2c_det == TQMX86_REG_I2C_DETECT_SOFT) {
+		err = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+					   tqmx86_i2c_soft_dev,
+					   ARRAY_SIZE(tqmx86_i2c_soft_dev),
+					   NULL, 0, NULL);
+		if (err)
+			return err;
+	}
+
+	return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+				    tqmx86_devs,
+				    ARRAY_SIZE(tqmx86_devs),
+				    NULL, 0, NULL);
+}
+
+static int tqmx86_create_platform_device(const struct dmi_system_id *id)
+{
+	struct platform_device *pdev;
+	int err;
+
+	pdev = platform_device_alloc("tqmx86", -1);
+	if (!pdev)
+		return -ENOMEM;
+
+	err = platform_device_add(pdev);
+	if (err)
+		platform_device_put(pdev);
+
+	return err;
+}
+
+static const struct dmi_system_id tqmx86_dmi_table[] __initconst = {
+	{
+		.ident = "TQMX86",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TQ-Group"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TQMx"),
+		},
+		.callback = tqmx86_create_platform_device,
+	},
+	{
+		.ident = "TQMX86",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TQ-Systems"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TQMx"),
+		},
+		.callback = tqmx86_create_platform_device,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(dmi, tqmx86_dmi_table);
+
+static struct platform_driver tqmx86_driver = {
+	.driver		= {
+		.name	= "tqmx86",
+	},
+	.probe		= tqmx86_probe,
+};
+
+static int __init tqmx86_init(void)
+{
+	if (!dmi_check_system(tqmx86_dmi_table))
+		return -ENODEV;
+
+	return platform_driver_register(&tqmx86_driver);
+}
+
+module_init(tqmx86_init);
+
+MODULE_DESCRIPTION("TQMx86 PLD Core Driver");
+MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:tqmx86");