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, 247 insertions, 0 deletions

diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c
new file mode 100644
index 000000000..9f3c4a01b
--- /dev/null
+++ b/drivers/mfd/qcom-pm8008.c
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/bitops.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include <dt-bindings/mfd/qcom-pm8008.h>
+
+#define I2C_INTR_STATUS_BASE		0x0550
+#define INT_RT_STS_OFFSET		0x10
+#define INT_SET_TYPE_OFFSET		0x11
+#define INT_POL_HIGH_OFFSET		0x12
+#define INT_POL_LOW_OFFSET		0x13
+#define INT_LATCHED_CLR_OFFSET		0x14
+#define INT_EN_SET_OFFSET		0x15
+#define INT_EN_CLR_OFFSET		0x16
+#define INT_LATCHED_STS_OFFSET		0x18
+
+enum {
+	PM8008_MISC,
+	PM8008_TEMP_ALARM,
+	PM8008_GPIO1,
+	PM8008_GPIO2,
+	PM8008_NUM_PERIPHS,
+};
+
+#define PM8008_PERIPH_0_BASE	0x900
+#define PM8008_PERIPH_1_BASE	0x2400
+#define PM8008_PERIPH_2_BASE	0xC000
+#define PM8008_PERIPH_3_BASE	0xC100
+
+#define PM8008_TEMP_ALARM_ADDR	PM8008_PERIPH_1_BASE
+#define PM8008_GPIO1_ADDR	PM8008_PERIPH_2_BASE
+#define PM8008_GPIO2_ADDR	PM8008_PERIPH_3_BASE
+
+#define PM8008_STATUS_BASE	(PM8008_PERIPH_0_BASE | INT_LATCHED_STS_OFFSET)
+#define PM8008_MASK_BASE	(PM8008_PERIPH_0_BASE | INT_EN_SET_OFFSET)
+#define PM8008_UNMASK_BASE	(PM8008_PERIPH_0_BASE | INT_EN_CLR_OFFSET)
+#define PM8008_TYPE_BASE	(PM8008_PERIPH_0_BASE | INT_SET_TYPE_OFFSET)
+#define PM8008_ACK_BASE		(PM8008_PERIPH_0_BASE | INT_LATCHED_CLR_OFFSET)
+#define PM8008_POLARITY_HI_BASE	(PM8008_PERIPH_0_BASE | INT_POL_HIGH_OFFSET)
+#define PM8008_POLARITY_LO_BASE	(PM8008_PERIPH_0_BASE | INT_POL_LOW_OFFSET)
+
+#define PM8008_PERIPH_OFFSET(paddr)	(paddr - PM8008_PERIPH_0_BASE)
+
+static unsigned int p0_offs[] = {PM8008_PERIPH_OFFSET(PM8008_PERIPH_0_BASE)};
+static unsigned int p1_offs[] = {PM8008_PERIPH_OFFSET(PM8008_PERIPH_1_BASE)};
+static unsigned int p2_offs[] = {PM8008_PERIPH_OFFSET(PM8008_PERIPH_2_BASE)};
+static unsigned int p3_offs[] = {PM8008_PERIPH_OFFSET(PM8008_PERIPH_3_BASE)};
+
+static struct regmap_irq_sub_irq_map pm8008_sub_reg_offsets[] = {
+	REGMAP_IRQ_MAIN_REG_OFFSET(p0_offs),
+	REGMAP_IRQ_MAIN_REG_OFFSET(p1_offs),
+	REGMAP_IRQ_MAIN_REG_OFFSET(p2_offs),
+	REGMAP_IRQ_MAIN_REG_OFFSET(p3_offs),
+};
+
+static unsigned int pm8008_virt_regs[] = {
+	PM8008_POLARITY_HI_BASE,
+	PM8008_POLARITY_LO_BASE,
+};
+
+enum {
+	POLARITY_HI_INDEX,
+	POLARITY_LO_INDEX,
+	PM8008_NUM_VIRT_REGS,
+};
+
+static struct regmap_irq pm8008_irqs[] = {
+	REGMAP_IRQ_REG(PM8008_IRQ_MISC_UVLO,	PM8008_MISC,	BIT(0)),
+	REGMAP_IRQ_REG(PM8008_IRQ_MISC_OVLO,	PM8008_MISC,	BIT(1)),
+	REGMAP_IRQ_REG(PM8008_IRQ_MISC_OTST2,	PM8008_MISC,	BIT(2)),
+	REGMAP_IRQ_REG(PM8008_IRQ_MISC_OTST3,	PM8008_MISC,	BIT(3)),
+	REGMAP_IRQ_REG(PM8008_IRQ_MISC_LDO_OCP,	PM8008_MISC,	BIT(4)),
+	REGMAP_IRQ_REG(PM8008_IRQ_TEMP_ALARM,	PM8008_TEMP_ALARM, BIT(0)),
+	REGMAP_IRQ_REG(PM8008_IRQ_GPIO1,	PM8008_GPIO1,	BIT(0)),
+	REGMAP_IRQ_REG(PM8008_IRQ_GPIO2,	PM8008_GPIO2,	BIT(0)),
+};
+
+static int pm8008_set_type_virt(unsigned int **virt_buf,
+				      unsigned int type, unsigned long hwirq,
+				      int reg)
+{
+	switch (type) {
+	case IRQ_TYPE_EDGE_FALLING:
+	case IRQ_TYPE_LEVEL_LOW:
+		virt_buf[POLARITY_HI_INDEX][reg] &= ~pm8008_irqs[hwirq].mask;
+		virt_buf[POLARITY_LO_INDEX][reg] |= pm8008_irqs[hwirq].mask;
+		break;
+
+	case IRQ_TYPE_EDGE_RISING:
+	case IRQ_TYPE_LEVEL_HIGH:
+		virt_buf[POLARITY_HI_INDEX][reg] |= pm8008_irqs[hwirq].mask;
+		virt_buf[POLARITY_LO_INDEX][reg] &= ~pm8008_irqs[hwirq].mask;
+		break;
+
+	case IRQ_TYPE_EDGE_BOTH:
+		virt_buf[POLARITY_HI_INDEX][reg] |= pm8008_irqs[hwirq].mask;
+		virt_buf[POLARITY_LO_INDEX][reg] |= pm8008_irqs[hwirq].mask;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct regmap_irq_chip pm8008_irq_chip = {
+	.name			= "pm8008_irq",
+	.main_status		= I2C_INTR_STATUS_BASE,
+	.num_main_regs		= 1,
+	.num_virt_regs		= PM8008_NUM_VIRT_REGS,
+	.irqs			= pm8008_irqs,
+	.num_irqs		= ARRAY_SIZE(pm8008_irqs),
+	.num_regs		= PM8008_NUM_PERIPHS,
+	.not_fixed_stride	= true,
+	.sub_reg_offsets	= pm8008_sub_reg_offsets,
+	.set_type_virt		= pm8008_set_type_virt,
+	.status_base		= PM8008_STATUS_BASE,
+	.mask_base		= PM8008_MASK_BASE,
+	.unmask_base		= PM8008_UNMASK_BASE,
+	.type_base		= PM8008_TYPE_BASE,
+	.ack_base		= PM8008_ACK_BASE,
+	.virt_reg_base		= pm8008_virt_regs,
+	.num_type_reg		= PM8008_NUM_PERIPHS,
+};
+
+static struct regmap_config qcom_mfd_regmap_cfg = {
+	.reg_bits	= 16,
+	.val_bits	= 8,
+	.max_register	= 0xFFFF,
+};
+
+static int pm8008_init(struct regmap *regmap)
+{
+	int rc;
+
+	/*
+	 * Set TEMP_ALARM peripheral's TYPE so that the regmap-irq framework
+	 * reads this as the default value instead of zero, the HW default.
+	 * This is required to enable the writing of TYPE registers in
+	 * regmap_irq_sync_unlock().
+	 */
+	rc = regmap_write(regmap, (PM8008_TEMP_ALARM_ADDR | INT_SET_TYPE_OFFSET), BIT(0));
+	if (rc)
+		return rc;
+
+	/* Do the same for GPIO1 and GPIO2 peripherals */
+	rc = regmap_write(regmap, (PM8008_GPIO1_ADDR | INT_SET_TYPE_OFFSET), BIT(0));
+	if (rc)
+		return rc;
+
+	rc = regmap_write(regmap, (PM8008_GPIO2_ADDR | INT_SET_TYPE_OFFSET), BIT(0));
+
+	return rc;
+}
+
+static int pm8008_probe_irq_peripherals(struct device *dev,
+					struct regmap *regmap,
+					int client_irq)
+{
+	int rc, i;
+	struct regmap_irq_type *type;
+	struct regmap_irq_chip_data *irq_data;
+
+	rc = pm8008_init(regmap);
+	if (rc) {
+		dev_err(dev, "Init failed: %d\n", rc);
+		return rc;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(pm8008_irqs); i++) {
+		type = &pm8008_irqs[i].type;
+
+		type->type_reg_offset	  = pm8008_irqs[i].reg_offset;
+		type->type_rising_val	  = pm8008_irqs[i].mask;
+		type->type_falling_val	  = pm8008_irqs[i].mask;
+		type->type_level_high_val = 0;
+		type->type_level_low_val  = 0;
+
+		if (type->type_reg_offset == PM8008_MISC)
+			type->types_supported = IRQ_TYPE_EDGE_RISING;
+		else
+			type->types_supported = (IRQ_TYPE_EDGE_BOTH |
+				IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW);
+	}
+
+	rc = devm_regmap_add_irq_chip(dev, regmap, client_irq,
+			IRQF_SHARED, 0, &pm8008_irq_chip, &irq_data);
+	if (rc) {
+		dev_err(dev, "Failed to add IRQ chip: %d\n", rc);
+		return rc;
+	}
+
+	return 0;
+}
+
+static int pm8008_probe(struct i2c_client *client)
+{
+	int rc;
+	struct device *dev;
+	struct regmap *regmap;
+
+	dev = &client->dev;
+	regmap = devm_regmap_init_i2c(client, &qcom_mfd_regmap_cfg);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	i2c_set_clientdata(client, regmap);
+
+	if (of_property_read_bool(dev->of_node, "interrupt-controller")) {
+		rc = pm8008_probe_irq_peripherals(dev, regmap, client->irq);
+		if (rc)
+			dev_err(dev, "Failed to probe irq periphs: %d\n", rc);
+	}
+
+	return devm_of_platform_populate(dev);
+}
+
+static const struct of_device_id pm8008_match[] = {
+	{ .compatible = "qcom,pm8008", },
+	{ },
+};
+
+static struct i2c_driver pm8008_mfd_driver = {
+	.driver = {
+		.name = "pm8008",
+		.of_match_table = pm8008_match,
+	},
+	.probe_new = pm8008_probe,
+};
+module_i2c_driver(pm8008_mfd_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("i2c:qcom-pm8008");