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, 283 insertions, 0 deletions

diff --git a/drivers/regulator/tps65132-regulator.c b/drivers/regulator/tps65132-regulator.c
new file mode 100644
index 000000000..0edc83089
--- /dev/null
+++ b/drivers/regulator/tps65132-regulator.c
@@ -0,0 +1,283 @@
+/*
+ * TI TPS65132 Regulator driver
+ *
+ * Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved.
+ *
+ * Author: Venkat Reddy Talla <vreddytalla@nvidia.com>
+ *		Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#define TPS65132_REG_VPOS		0x00
+#define TPS65132_REG_VNEG		0x01
+#define TPS65132_REG_APPS_DISP_DISN	0x03
+#define TPS65132_REG_CONTROL		0x0FF
+
+#define TPS65132_VOUT_MASK		0x1F
+#define TPS65132_VOUT_N_VOLTAGE		0x15
+#define TPS65132_VOUT_VMIN		4000000
+#define TPS65132_VOUT_VMAX		6000000
+#define TPS65132_VOUT_STEP		100000
+
+#define TPS65132_REG_APPS_DIS_VPOS		BIT(0)
+#define TPS65132_REG_APPS_DIS_VNEG		BIT(1)
+
+#define TPS65132_REGULATOR_ID_VPOS	0
+#define TPS65132_REGULATOR_ID_VNEG	1
+#define TPS65132_MAX_REGULATORS		2
+
+#define TPS65132_ACT_DIS_TIME_SLACK		1000
+
+struct tps65132_reg_pdata {
+	struct gpio_desc *en_gpiod;
+	struct gpio_desc *act_dis_gpiod;
+	unsigned int act_dis_time_us;
+	int ena_gpio_state;
+};
+
+struct tps65132_regulator {
+	struct device *dev;
+	struct tps65132_reg_pdata reg_pdata[TPS65132_MAX_REGULATORS];
+};
+
+static int tps65132_regulator_enable(struct regulator_dev *rdev)
+{
+	struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
+	int id = rdev_get_id(rdev);
+	struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
+	int ret;
+
+	if (!IS_ERR(rpdata->en_gpiod)) {
+		gpiod_set_value_cansleep(rpdata->en_gpiod, 1);
+		rpdata->ena_gpio_state = 1;
+	}
+
+	/* Hardware automatically enable discharge bit in enable */
+	if (rdev->constraints->active_discharge ==
+			REGULATOR_ACTIVE_DISCHARGE_DISABLE) {
+		ret = regulator_set_active_discharge_regmap(rdev, false);
+		if (ret < 0) {
+			dev_err(tps->dev, "Failed to disable active discharge: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int tps65132_regulator_disable(struct regulator_dev *rdev)
+{
+	struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
+	int id = rdev_get_id(rdev);
+	struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
+
+	if (!IS_ERR(rpdata->en_gpiod)) {
+		gpiod_set_value_cansleep(rpdata->en_gpiod, 0);
+		rpdata->ena_gpio_state = 0;
+	}
+
+	if (!IS_ERR(rpdata->act_dis_gpiod)) {
+		gpiod_set_value_cansleep(rpdata->act_dis_gpiod, 1);
+		usleep_range(rpdata->act_dis_time_us, rpdata->act_dis_time_us +
+			     TPS65132_ACT_DIS_TIME_SLACK);
+		gpiod_set_value_cansleep(rpdata->act_dis_gpiod, 0);
+	}
+
+	return 0;
+}
+
+static int tps65132_regulator_is_enabled(struct regulator_dev *rdev)
+{
+	struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
+	int id = rdev_get_id(rdev);
+	struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
+
+	if (!IS_ERR(rpdata->en_gpiod))
+		return rpdata->ena_gpio_state;
+
+	return 1;
+}
+
+static const struct regulator_ops tps65132_regulator_ops = {
+	.enable = tps65132_regulator_enable,
+	.disable = tps65132_regulator_disable,
+	.is_enabled = tps65132_regulator_is_enabled,
+	.list_voltage = regulator_list_voltage_linear,
+	.map_voltage = regulator_map_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.set_active_discharge = regulator_set_active_discharge_regmap,
+};
+
+static int tps65132_of_parse_cb(struct device_node *np,
+				const struct regulator_desc *desc,
+				struct regulator_config *config)
+{
+	struct tps65132_regulator *tps = config->driver_data;
+	struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[desc->id];
+	int ret;
+
+	rpdata->en_gpiod = devm_fwnode_gpiod_get(tps->dev, of_fwnode_handle(np),
+						 "enable", GPIOD_ASIS,
+						 "enable");
+	if (IS_ERR(rpdata->en_gpiod)) {
+		ret = PTR_ERR(rpdata->en_gpiod);
+
+		/* Ignore the error other than probe defer */
+		if (ret == -EPROBE_DEFER)
+			return ret;
+		return 0;
+	}
+
+	rpdata->act_dis_gpiod = devm_fwnode_gpiod_get(tps->dev,
+						      of_fwnode_handle(np),
+						      "active-discharge",
+						      GPIOD_ASIS,
+						      "active-discharge");
+	if (IS_ERR(rpdata->act_dis_gpiod)) {
+		ret = PTR_ERR(rpdata->act_dis_gpiod);
+
+		/* Ignore the error other than probe defer */
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
+		return 0;
+	}
+
+	ret = of_property_read_u32(np, "ti,active-discharge-time-us",
+				   &rpdata->act_dis_time_us);
+	if (ret < 0) {
+		dev_err(tps->dev, "Failed to read active discharge time:%d\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+#define TPS65132_REGULATOR_DESC(_id, _name)		\
+	[TPS65132_REGULATOR_ID_##_id] = {		\
+		.name = "tps65132-"#_name,		\
+		.supply_name = "vin",			\
+		.id = TPS65132_REGULATOR_ID_##_id,	\
+		.of_match = of_match_ptr(#_name),	\
+		.of_parse_cb	= tps65132_of_parse_cb,	\
+		.ops = &tps65132_regulator_ops,		\
+		.n_voltages = TPS65132_VOUT_N_VOLTAGE,	\
+		.min_uV = TPS65132_VOUT_VMIN,		\
+		.uV_step = TPS65132_VOUT_STEP,		\
+		.enable_time = 500,			\
+		.vsel_mask = TPS65132_VOUT_MASK,	\
+		.vsel_reg = TPS65132_REG_##_id,		\
+		.active_discharge_off = 0,			\
+		.active_discharge_on = TPS65132_REG_APPS_DIS_##_id, \
+		.active_discharge_mask = TPS65132_REG_APPS_DIS_##_id, \
+		.active_discharge_reg = TPS65132_REG_APPS_DISP_DISN, \
+		.type = REGULATOR_VOLTAGE,		\
+		.owner = THIS_MODULE,			\
+	}
+
+static const struct regulator_desc tps_regs_desc[TPS65132_MAX_REGULATORS] = {
+	TPS65132_REGULATOR_DESC(VPOS, outp),
+	TPS65132_REGULATOR_DESC(VNEG, outn),
+};
+
+static const struct regmap_range tps65132_no_reg_ranges[] = {
+	regmap_reg_range(TPS65132_REG_APPS_DISP_DISN + 1,
+			 TPS65132_REG_CONTROL - 1),
+};
+
+static const struct regmap_access_table tps65132_no_reg_table = {
+	.no_ranges = tps65132_no_reg_ranges,
+	.n_no_ranges = ARRAY_SIZE(tps65132_no_reg_ranges),
+};
+
+static const struct regmap_config tps65132_regmap_config = {
+	.reg_bits	= 8,
+	.val_bits	= 8,
+	.max_register	= TPS65132_REG_CONTROL,
+	.cache_type	= REGCACHE_NONE,
+	.rd_table	= &tps65132_no_reg_table,
+	.wr_table	= &tps65132_no_reg_table,
+};
+
+static int tps65132_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct tps65132_regulator *tps;
+	struct regulator_dev *rdev;
+	struct regmap *rmap;
+	struct regulator_config config = { };
+	int id;
+	int ret;
+
+	tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
+	if (!tps)
+		return -ENOMEM;
+
+	rmap = devm_regmap_init_i2c(client, &tps65132_regmap_config);
+	if (IS_ERR(rmap)) {
+		ret = PTR_ERR(rmap);
+		dev_err(dev, "regmap init failed: %d\n", ret);
+		return ret;
+	}
+
+	i2c_set_clientdata(client, tps);
+	tps->dev = dev;
+
+	for (id = 0; id < TPS65132_MAX_REGULATORS; ++id) {
+		config.regmap = rmap;
+		config.dev = dev;
+		config.driver_data = tps;
+
+		rdev = devm_regulator_register(dev, &tps_regs_desc[id],
+					       &config);
+		if (IS_ERR(rdev)) {
+			ret = PTR_ERR(rdev);
+			dev_err(dev, "regulator %s register failed: %d\n",
+				tps_regs_desc[id].name, ret);
+			return ret;
+		}
+	}
+	return 0;
+}
+
+static const struct i2c_device_id tps65132_id[] = {
+	{.name = "tps65132",},
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, tps65132_id);
+
+static struct i2c_driver tps65132_i2c_driver = {
+	.driver = {
+		.name = "tps65132",
+	},
+	.probe_new = tps65132_probe,
+	.id_table = tps65132_id,
+};
+
+module_i2c_driver(tps65132_i2c_driver);
+
+MODULE_DESCRIPTION("tps65132 regulator driver");
+MODULE_AUTHOR("Venkat Reddy Talla <vreddytalla@nvidia.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL v2");