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/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
new file mode 100644
index 000000000..0345f38f6
--- /dev/null
+++ b/drivers/regulator/pcap-regulator.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PCAP2 Regulator Driver
+ *
+ * Copyright (c) 2009 Daniel Ribeiro <drwyrm@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/ezx-pcap.h>
+
+static const unsigned int V1_table[] = {
+	2775000, 1275000, 1600000, 1725000, 1825000, 1925000, 2075000, 2275000,
+};
+
+static const unsigned int V2_table[] = {
+	2500000, 2775000,
+};
+
+static const unsigned int V3_table[] = {
+	1075000, 1275000, 1550000, 1725000, 1876000, 1950000, 2075000, 2275000,
+};
+
+static const unsigned int V4_table[] = {
+	1275000, 1550000, 1725000, 1875000, 1950000, 2075000, 2275000, 2775000,
+};
+
+static const unsigned int V5_table[] = {
+	1875000, 2275000, 2475000, 2775000,
+};
+
+static const unsigned int V6_table[] = {
+	2475000, 2775000,
+};
+
+static const unsigned int V7_table[] = {
+	1875000, 2775000,
+};
+
+#define V8_table V4_table
+
+static const unsigned int V9_table[] = {
+	1575000, 1875000, 2475000, 2775000,
+};
+
+static const unsigned int V10_table[] = {
+	5000000,
+};
+
+static const unsigned int VAUX1_table[] = {
+	1875000, 2475000, 2775000, 3000000,
+};
+
+#define VAUX2_table VAUX1_table
+
+static const unsigned int VAUX3_table[] = {
+	1200000, 1200000, 1200000, 1200000, 1400000, 1600000, 1800000, 2000000,
+	2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000, 3600000,
+};
+
+static const unsigned int VAUX4_table[] = {
+	1800000, 1800000, 3000000, 5000000,
+};
+
+static const unsigned int VSIM_table[] = {
+	1875000, 3000000,
+};
+
+static const unsigned int VSIM2_table[] = {
+	1875000,
+};
+
+static const unsigned int VVIB_table[] = {
+	1300000, 1800000, 2000000, 3000000,
+};
+
+static const unsigned int SW1_table[] = {
+	 900000,  950000, 1000000, 1050000, 1100000, 1150000, 1200000, 1250000,
+	1300000, 1350000, 1400000, 1450000, 1500000, 1600000, 1875000, 2250000,
+};
+
+#define SW2_table SW1_table
+
+struct pcap_regulator {
+	const u8 reg;
+	const u8 en;
+	const u8 index;
+	const u8 stby;
+	const u8 lowpwr;
+};
+
+#define NA 0xff
+
+#define VREG_INFO(_vreg, _reg, _en, _index, _stby, _lowpwr)		\
+	[_vreg]	= {							\
+		.reg		= _reg,					\
+		.en		= _en,					\
+		.index		= _index,				\
+		.stby		= _stby,				\
+		.lowpwr		= _lowpwr,				\
+	}
+
+static struct pcap_regulator vreg_table[] = {
+	VREG_INFO(V1,    PCAP_REG_VREG1,   1,  2,  18, 0),
+	VREG_INFO(V2,    PCAP_REG_VREG1,   5,  6,  19, 22),
+	VREG_INFO(V3,    PCAP_REG_VREG1,   7,  8,  20, 23),
+	VREG_INFO(V4,    PCAP_REG_VREG1,   11, 12, 21, 24),
+	/* V5 STBY and LOWPWR are on PCAP_REG_VREG2 */
+	VREG_INFO(V5,    PCAP_REG_VREG1,   15, 16, 12, 19),
+
+	VREG_INFO(V6,    PCAP_REG_VREG2,   1,  2,  14, 20),
+	VREG_INFO(V7,    PCAP_REG_VREG2,   3,  4,  15, 21),
+	VREG_INFO(V8,    PCAP_REG_VREG2,   5,  6,  16, 22),
+	VREG_INFO(V9,    PCAP_REG_VREG2,   9,  10, 17, 23),
+	VREG_INFO(V10,   PCAP_REG_VREG2,   10, NA, 18, 24),
+
+	VREG_INFO(VAUX1, PCAP_REG_AUXVREG, 1,  2,  22, 23),
+	/* VAUX2 ... VSIM2 STBY and LOWPWR are on PCAP_REG_LOWPWR */
+	VREG_INFO(VAUX2, PCAP_REG_AUXVREG, 4,  5,  0,  1),
+	VREG_INFO(VAUX3, PCAP_REG_AUXVREG, 7,  8,  2,  3),
+	VREG_INFO(VAUX4, PCAP_REG_AUXVREG, 12, 13, 4,  5),
+	VREG_INFO(VSIM,  PCAP_REG_AUXVREG, 17, 18, NA, 6),
+	VREG_INFO(VSIM2, PCAP_REG_AUXVREG, 16, NA, NA, 7),
+	VREG_INFO(VVIB,  PCAP_REG_AUXVREG, 19, 20, NA, NA),
+
+	VREG_INFO(SW1,   PCAP_REG_SWCTRL,  1,  2,  NA, NA),
+	VREG_INFO(SW2,   PCAP_REG_SWCTRL,  6,  7,  NA, NA),
+	/* SW3 STBY is on PCAP_REG_AUXVREG */
+	VREG_INFO(SW3,   PCAP_REG_SWCTRL,  11, 12, 24, NA),
+
+	/* SWxS used to control SWx voltage on standby */
+/*	VREG_INFO(SW1S,  PCAP_REG_LOWPWR,  NA, 12, NA, NA),
+	VREG_INFO(SW2S,  PCAP_REG_LOWPWR,  NA, 20, NA, NA), */
+};
+
+static int pcap_regulator_set_voltage_sel(struct regulator_dev *rdev,
+					  unsigned selector)
+{
+	struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+	void *pcap = rdev_get_drvdata(rdev);
+
+	/* the regulator doesn't support voltage switching */
+	if (rdev->desc->n_voltages == 1)
+		return -EINVAL;
+
+	return ezx_pcap_set_bits(pcap, vreg->reg,
+				 (rdev->desc->n_voltages - 1) << vreg->index,
+				 selector << vreg->index);
+}
+
+static int pcap_regulator_get_voltage_sel(struct regulator_dev *rdev)
+{
+	struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+	void *pcap = rdev_get_drvdata(rdev);
+	u32 tmp;
+
+	if (rdev->desc->n_voltages == 1)
+		return 0;
+
+	ezx_pcap_read(pcap, vreg->reg, &tmp);
+	tmp = ((tmp >> vreg->index) & (rdev->desc->n_voltages - 1));
+	return tmp;
+}
+
+static int pcap_regulator_enable(struct regulator_dev *rdev)
+{
+	struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+	void *pcap = rdev_get_drvdata(rdev);
+
+	if (vreg->en == NA)
+		return -EINVAL;
+
+	return ezx_pcap_set_bits(pcap, vreg->reg, 1 << vreg->en, 1 << vreg->en);
+}
+
+static int pcap_regulator_disable(struct regulator_dev *rdev)
+{
+	struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+	void *pcap = rdev_get_drvdata(rdev);
+
+	if (vreg->en == NA)
+		return -EINVAL;
+
+	return ezx_pcap_set_bits(pcap, vreg->reg, 1 << vreg->en, 0);
+}
+
+static int pcap_regulator_is_enabled(struct regulator_dev *rdev)
+{
+	struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+	void *pcap = rdev_get_drvdata(rdev);
+	u32 tmp;
+
+	if (vreg->en == NA)
+		return -EINVAL;
+
+	ezx_pcap_read(pcap, vreg->reg, &tmp);
+	return (tmp >> vreg->en) & 1;
+}
+
+static const struct regulator_ops pcap_regulator_ops = {
+	.list_voltage	= regulator_list_voltage_table,
+	.set_voltage_sel = pcap_regulator_set_voltage_sel,
+	.get_voltage_sel = pcap_regulator_get_voltage_sel,
+	.enable		= pcap_regulator_enable,
+	.disable	= pcap_regulator_disable,
+	.is_enabled	= pcap_regulator_is_enabled,
+};
+
+#define VREG(_vreg)						\
+	[_vreg]	= {						\
+		.name		= #_vreg,			\
+		.id		= _vreg,			\
+		.n_voltages	= ARRAY_SIZE(_vreg##_table),	\
+		.volt_table	= _vreg##_table,		\
+		.ops		= &pcap_regulator_ops,		\
+		.type		= REGULATOR_VOLTAGE,		\
+		.owner		= THIS_MODULE,			\
+	}
+
+static const struct regulator_desc pcap_regulators[] = {
+	VREG(V1), VREG(V2), VREG(V3), VREG(V4), VREG(V5), VREG(V6), VREG(V7),
+	VREG(V8), VREG(V9), VREG(V10), VREG(VAUX1), VREG(VAUX2), VREG(VAUX3),
+	VREG(VAUX4), VREG(VSIM), VREG(VSIM2), VREG(VVIB), VREG(SW1), VREG(SW2),
+};
+
+static int pcap_regulator_probe(struct platform_device *pdev)
+{
+	struct regulator_dev *rdev;
+	void *pcap = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_config config = { };
+
+	config.dev = &pdev->dev;
+	config.init_data = dev_get_platdata(&pdev->dev);
+	config.driver_data = pcap;
+
+	rdev = devm_regulator_register(&pdev->dev, &pcap_regulators[pdev->id],
+				       &config);
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	platform_set_drvdata(pdev, rdev);
+
+	return 0;
+}
+
+static struct platform_driver pcap_regulator_driver = {
+	.driver = {
+		.name	= "pcap-regulator",
+	},
+	.probe	= pcap_regulator_probe,
+};
+
+static int __init pcap_regulator_init(void)
+{
+	return platform_driver_register(&pcap_regulator_driver);
+}
+
+static void __exit pcap_regulator_exit(void)
+{
+	platform_driver_unregister(&pcap_regulator_driver);
+}
+
+subsys_initcall(pcap_regulator_init);
+module_exit(pcap_regulator_exit);
+
+MODULE_AUTHOR("Daniel Ribeiro <drwyrm@gmail.com>");
+MODULE_DESCRIPTION("PCAP2 Regulator Driver");
+MODULE_LICENSE("GPL");