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, 360 insertions, 0 deletions

diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
new file mode 100644
index 000000000..122f7b931
--- /dev/null
+++ b/drivers/mfd/max8998.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// max8998.c - mfd core driver for the Maxim 8998
+//
+//  Copyright (C) 2009-2010 Samsung Electronics
+//  Kyungmin Park <kyungmin.park@samsung.com>
+//  Marek Szyprowski <m.szyprowski@samsung.com>
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/pm_runtime.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max8998.h>
+#include <linux/mfd/max8998-private.h>
+
+#define RTC_I2C_ADDR		(0x0c >> 1)
+
+static const struct mfd_cell max8998_devs[] = {
+	{
+		.name = "max8998-pmic",
+	}, {
+		.name = "max8998-rtc",
+	}, {
+		.name = "max8998-battery",
+	},
+};
+
+static const struct mfd_cell lp3974_devs[] = {
+	{
+		.name = "lp3974-pmic",
+	}, {
+		.name = "lp3974-rtc",
+	},
+};
+
+int max8998_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
+{
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&max8998->iolock);
+	ret = i2c_smbus_read_byte_data(i2c, reg);
+	mutex_unlock(&max8998->iolock);
+	if (ret < 0)
+		return ret;
+
+	ret &= 0xff;
+	*dest = ret;
+	return 0;
+}
+EXPORT_SYMBOL(max8998_read_reg);
+
+int max8998_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&max8998->iolock);
+	ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf);
+	mutex_unlock(&max8998->iolock);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL(max8998_bulk_read);
+
+int max8998_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
+{
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&max8998->iolock);
+	ret = i2c_smbus_write_byte_data(i2c, reg, value);
+	mutex_unlock(&max8998->iolock);
+	return ret;
+}
+EXPORT_SYMBOL(max8998_write_reg);
+
+int max8998_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&max8998->iolock);
+	ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf);
+	mutex_unlock(&max8998->iolock);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL(max8998_bulk_write);
+
+int max8998_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
+{
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&max8998->iolock);
+	ret = i2c_smbus_read_byte_data(i2c, reg);
+	if (ret >= 0) {
+		u8 old_val = ret & 0xff;
+		u8 new_val = (val & mask) | (old_val & (~mask));
+		ret = i2c_smbus_write_byte_data(i2c, reg, new_val);
+	}
+	mutex_unlock(&max8998->iolock);
+	return ret;
+}
+EXPORT_SYMBOL(max8998_update_reg);
+
+#ifdef CONFIG_OF
+static const struct of_device_id max8998_dt_match[] = {
+	{ .compatible = "maxim,max8998", .data = (void *)TYPE_MAX8998 },
+	{ .compatible = "national,lp3974", .data = (void *)TYPE_LP3974 },
+	{ .compatible = "ti,lp3974", .data = (void *)TYPE_LP3974 },
+	{},
+};
+#endif
+
+/*
+ * Only the common platform data elements for max8998 are parsed here from the
+ * device tree. Other sub-modules of max8998 such as pmic, rtc and others have
+ * to parse their own platform data elements from device tree.
+ *
+ * The max8998 platform data structure is instantiated here and the drivers for
+ * the sub-modules need not instantiate another instance while parsing their
+ * platform data.
+ */
+static struct max8998_platform_data *max8998_i2c_parse_dt_pdata(
+							struct device *dev)
+{
+	struct max8998_platform_data *pd;
+
+	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+	if (!pd)
+		return ERR_PTR(-ENOMEM);
+
+	pd->ono = irq_of_parse_and_map(dev->of_node, 1);
+
+	/*
+	 * ToDo: the 'wakeup' member in the platform data is more of a linux
+	 * specfic information. Hence, there is no binding for that yet and
+	 * not parsed here.
+	 */
+	return pd;
+}
+
+static inline unsigned long max8998_i2c_get_driver_data(struct i2c_client *i2c,
+						const struct i2c_device_id *id)
+{
+	if (i2c->dev.of_node)
+		return (unsigned long)of_device_get_match_data(&i2c->dev);
+
+	return id->driver_data;
+}
+
+static int max8998_i2c_probe(struct i2c_client *i2c)
+{
+	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
+	struct max8998_platform_data *pdata = dev_get_platdata(&i2c->dev);
+	struct max8998_dev *max8998;
+	int ret = 0;
+
+	max8998 = devm_kzalloc(&i2c->dev, sizeof(struct max8998_dev),
+				GFP_KERNEL);
+	if (max8998 == NULL)
+		return -ENOMEM;
+
+	if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node) {
+		pdata = max8998_i2c_parse_dt_pdata(&i2c->dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
+
+	i2c_set_clientdata(i2c, max8998);
+	max8998->dev = &i2c->dev;
+	max8998->i2c = i2c;
+	max8998->irq = i2c->irq;
+	max8998->type = max8998_i2c_get_driver_data(i2c, id);
+	max8998->pdata = pdata;
+	if (pdata) {
+		max8998->ono = pdata->ono;
+		max8998->irq_base = pdata->irq_base;
+		max8998->wakeup = pdata->wakeup;
+	}
+	mutex_init(&max8998->iolock);
+
+	max8998->rtc = i2c_new_dummy_device(i2c->adapter, RTC_I2C_ADDR);
+	if (IS_ERR(max8998->rtc)) {
+		dev_err(&i2c->dev, "Failed to allocate I2C device for RTC\n");
+		return PTR_ERR(max8998->rtc);
+	}
+	i2c_set_clientdata(max8998->rtc, max8998);
+
+	max8998_irq_init(max8998);
+
+	pm_runtime_set_active(max8998->dev);
+
+	switch (max8998->type) {
+	case TYPE_LP3974:
+		ret = mfd_add_devices(max8998->dev, -1,
+				      lp3974_devs, ARRAY_SIZE(lp3974_devs),
+				      NULL, 0, NULL);
+		break;
+	case TYPE_MAX8998:
+		ret = mfd_add_devices(max8998->dev, -1,
+				      max8998_devs, ARRAY_SIZE(max8998_devs),
+				      NULL, 0, NULL);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret < 0)
+		goto err;
+
+	device_init_wakeup(max8998->dev, max8998->wakeup);
+
+	return ret;
+
+err:
+	mfd_remove_devices(max8998->dev);
+	max8998_irq_exit(max8998);
+	i2c_unregister_device(max8998->rtc);
+	return ret;
+}
+
+static const struct i2c_device_id max8998_i2c_id[] = {
+	{ "max8998", TYPE_MAX8998 },
+	{ "lp3974", TYPE_LP3974},
+	{ }
+};
+
+static int max8998_suspend(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+
+	if (device_may_wakeup(dev))
+		irq_set_irq_wake(max8998->irq, 1);
+	return 0;
+}
+
+static int max8998_resume(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
+
+	if (device_may_wakeup(dev))
+		irq_set_irq_wake(max8998->irq, 0);
+	/*
+	 * In LP3974, if IRQ registers are not "read & clear"
+	 * when it's set during sleep, the interrupt becomes
+	 * disabled.
+	 */
+	return max8998_irq_resume(i2c_get_clientdata(i2c));
+}
+
+struct max8998_reg_dump {
+	u8	addr;
+	u8	val;
+};
+#define SAVE_ITEM(x)	{ .addr = (x), .val = 0x0, }
+static struct max8998_reg_dump max8998_dump[] = {
+	SAVE_ITEM(MAX8998_REG_IRQM1),
+	SAVE_ITEM(MAX8998_REG_IRQM2),
+	SAVE_ITEM(MAX8998_REG_IRQM3),
+	SAVE_ITEM(MAX8998_REG_IRQM4),
+	SAVE_ITEM(MAX8998_REG_STATUSM1),
+	SAVE_ITEM(MAX8998_REG_STATUSM2),
+	SAVE_ITEM(MAX8998_REG_CHGR1),
+	SAVE_ITEM(MAX8998_REG_CHGR2),
+	SAVE_ITEM(MAX8998_REG_LDO_ACTIVE_DISCHARGE1),
+	SAVE_ITEM(MAX8998_REG_LDO_ACTIVE_DISCHARGE1),
+	SAVE_ITEM(MAX8998_REG_BUCK_ACTIVE_DISCHARGE3),
+	SAVE_ITEM(MAX8998_REG_ONOFF1),
+	SAVE_ITEM(MAX8998_REG_ONOFF2),
+	SAVE_ITEM(MAX8998_REG_ONOFF3),
+	SAVE_ITEM(MAX8998_REG_ONOFF4),
+	SAVE_ITEM(MAX8998_REG_BUCK1_VOLTAGE1),
+	SAVE_ITEM(MAX8998_REG_BUCK1_VOLTAGE2),
+	SAVE_ITEM(MAX8998_REG_BUCK1_VOLTAGE3),
+	SAVE_ITEM(MAX8998_REG_BUCK1_VOLTAGE4),
+	SAVE_ITEM(MAX8998_REG_BUCK2_VOLTAGE1),
+	SAVE_ITEM(MAX8998_REG_BUCK2_VOLTAGE2),
+	SAVE_ITEM(MAX8998_REG_LDO2_LDO3),
+	SAVE_ITEM(MAX8998_REG_LDO4),
+	SAVE_ITEM(MAX8998_REG_LDO5),
+	SAVE_ITEM(MAX8998_REG_LDO6),
+	SAVE_ITEM(MAX8998_REG_LDO7),
+	SAVE_ITEM(MAX8998_REG_LDO8_LDO9),
+	SAVE_ITEM(MAX8998_REG_LDO10_LDO11),
+	SAVE_ITEM(MAX8998_REG_LDO12),
+	SAVE_ITEM(MAX8998_REG_LDO13),
+	SAVE_ITEM(MAX8998_REG_LDO14),
+	SAVE_ITEM(MAX8998_REG_LDO15),
+	SAVE_ITEM(MAX8998_REG_LDO16),
+	SAVE_ITEM(MAX8998_REG_LDO17),
+	SAVE_ITEM(MAX8998_REG_BKCHR),
+	SAVE_ITEM(MAX8998_REG_LBCNFG1),
+	SAVE_ITEM(MAX8998_REG_LBCNFG2),
+};
+/* Save registers before hibernation */
+static int max8998_freeze(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(max8998_dump); i++)
+		max8998_read_reg(i2c, max8998_dump[i].addr,
+				&max8998_dump[i].val);
+
+	return 0;
+}
+
+/* Restore registers after hibernation */
+static int max8998_restore(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(max8998_dump); i++)
+		max8998_write_reg(i2c, max8998_dump[i].addr,
+				max8998_dump[i].val);
+
+	return 0;
+}
+
+static const struct dev_pm_ops max8998_pm = {
+	.suspend = max8998_suspend,
+	.resume = max8998_resume,
+	.freeze = max8998_freeze,
+	.restore = max8998_restore,
+};
+
+static struct i2c_driver max8998_i2c_driver = {
+	.driver = {
+		   .name = "max8998",
+		   .pm = &max8998_pm,
+		   .suppress_bind_attrs = true,
+		   .of_match_table = of_match_ptr(max8998_dt_match),
+	},
+	.probe_new = max8998_i2c_probe,
+	.id_table = max8998_i2c_id,
+};
+
+static int __init max8998_i2c_init(void)
+{
+	return i2c_add_driver(&max8998_i2c_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(max8998_i2c_init);