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, 340 insertions, 0 deletions

diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
new file mode 100644
index 000000000..a6733396b
--- /dev/null
+++ b/sound/soc/codecs/max9850.c
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * max9850.c  --  codec driver for max9850
+ *
+ * Copyright (C) 2011 taskit GmbH
+ *
+ * Author: Christian Glindkamp <christian.glindkamp@taskit.de>
+ *
+ * Initial development of this code was funded by
+ * MICRONIC Computer Systeme GmbH, https://www.mcsberlin.de/
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "max9850.h"
+
+struct max9850_priv {
+	struct regmap *regmap;
+	unsigned int sysclk;
+};
+
+/* these registers are not used at the moment but provided for the sake of
+ * completeness */
+static bool max9850_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX9850_STATUSA:
+	case MAX9850_STATUSB:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config max9850_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = MAX9850_DIGITAL_AUDIO,
+	.volatile_reg = max9850_volatile_register,
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static const DECLARE_TLV_DB_RANGE(max9850_tlv,
+	0x18, 0x1f, TLV_DB_SCALE_ITEM(-7450, 400, 0),
+	0x20, 0x33, TLV_DB_SCALE_ITEM(-4150, 200, 0),
+	0x34, 0x37, TLV_DB_SCALE_ITEM(-150, 100, 0),
+	0x38, 0x3f, TLV_DB_SCALE_ITEM(250, 50, 0)
+);
+
+static const struct snd_kcontrol_new max9850_controls[] = {
+SOC_SINGLE_TLV("Headphone Volume", MAX9850_VOLUME, 0, 0x3f, 1, max9850_tlv),
+SOC_SINGLE("Headphone Switch", MAX9850_VOLUME, 7, 1, 1),
+SOC_SINGLE("Mono Switch", MAX9850_GENERAL_PURPOSE, 2, 1, 0),
+};
+
+static const struct snd_kcontrol_new max9850_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line In Switch", MAX9850_ENABLE, 1, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget max9850_dapm_widgets[] = {
+SND_SOC_DAPM_SUPPLY("Charge Pump 1", MAX9850_ENABLE, 4, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("Charge Pump 2", MAX9850_ENABLE, 5, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("MCLK", MAX9850_ENABLE, 6, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("SHDN", MAX9850_ENABLE, 7, 0, NULL, 0),
+SND_SOC_DAPM_MIXER_NAMED_CTL("Output Mixer", MAX9850_ENABLE, 2, 0,
+		&max9850_mixer_controls[0],
+		ARRAY_SIZE(max9850_mixer_controls)),
+SND_SOC_DAPM_PGA("Headphone Output", MAX9850_ENABLE, 3, 0, NULL, 0),
+SND_SOC_DAPM_DAC("DAC", "HiFi Playback", MAX9850_ENABLE, 0, 0),
+SND_SOC_DAPM_OUTPUT("OUTL"),
+SND_SOC_DAPM_OUTPUT("HPL"),
+SND_SOC_DAPM_OUTPUT("OUTR"),
+SND_SOC_DAPM_OUTPUT("HPR"),
+SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
+SND_SOC_DAPM_INPUT("INL"),
+SND_SOC_DAPM_INPUT("INR"),
+};
+
+static const struct snd_soc_dapm_route max9850_dapm_routes[] = {
+	/* output mixer */
+	{"Output Mixer", NULL, "DAC"},
+	{"Output Mixer", "Line In Switch", "Line Input"},
+
+	/* outputs */
+	{"Headphone Output", NULL, "Output Mixer"},
+	{"HPL", NULL, "Headphone Output"},
+	{"HPR", NULL, "Headphone Output"},
+	{"OUTL", NULL, "Output Mixer"},
+	{"OUTR", NULL, "Output Mixer"},
+
+	/* inputs */
+	{"Line Input", NULL, "INL"},
+	{"Line Input", NULL, "INR"},
+
+	/* supplies */
+	{"Output Mixer", NULL, "Charge Pump 1"},
+	{"Output Mixer", NULL, "Charge Pump 2"},
+	{"Output Mixer", NULL, "SHDN"},
+	{"DAC", NULL, "MCLK"},
+};
+
+static int max9850_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct max9850_priv *max9850 = snd_soc_component_get_drvdata(component);
+	u64 lrclk_div;
+	u8 sf, da;
+
+	if (!max9850->sysclk)
+		return -EINVAL;
+
+	/* lrclk_div = 2^22 * rate / iclk with iclk = mclk / sf */
+	sf = (snd_soc_component_read(component, MAX9850_CLOCK) >> 2) + 1;
+	lrclk_div = (1 << 22);
+	lrclk_div *= params_rate(params);
+	lrclk_div *= sf;
+	do_div(lrclk_div, max9850->sysclk);
+
+	snd_soc_component_write(component, MAX9850_LRCLK_MSB, (lrclk_div >> 8) & 0x7f);
+	snd_soc_component_write(component, MAX9850_LRCLK_LSB, lrclk_div & 0xff);
+
+	switch (params_width(params)) {
+	case 16:
+		da = 0;
+		break;
+	case 20:
+		da = 0x2;
+		break;
+	case 24:
+		da = 0x3;
+		break;
+	default:
+		return -EINVAL;
+	}
+	snd_soc_component_update_bits(component, MAX9850_DIGITAL_AUDIO, 0x3, da);
+
+	return 0;
+}
+
+static int max9850_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	struct max9850_priv *max9850 = snd_soc_component_get_drvdata(component);
+
+	/* calculate mclk -> iclk divider */
+	if (freq <= 13000000)
+		snd_soc_component_write(component, MAX9850_CLOCK, 0x0);
+	else if (freq <= 26000000)
+		snd_soc_component_write(component, MAX9850_CLOCK, 0x4);
+	else if (freq <= 40000000)
+		snd_soc_component_write(component, MAX9850_CLOCK, 0x8);
+	else
+		return -EINVAL;
+
+	max9850->sysclk = freq;
+	return 0;
+}
+
+static int max9850_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	u8 da = 0;
+
+	/* set clock provider for audio interface */
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_CBP_CFP:
+		da |= MAX9850_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBC_CFC:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		da |= MAX9850_DLY;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		da |= MAX9850_RTJ;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		da |= MAX9850_BCINV | MAX9850_INV;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		da |= MAX9850_BCINV;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		da |= MAX9850_INV;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* set da */
+	snd_soc_component_write(component, MAX9850_DIGITAL_AUDIO, da);
+
+	return 0;
+}
+
+static int max9850_set_bias_level(struct snd_soc_component *component,
+				  enum snd_soc_bias_level level)
+{
+	struct max9850_priv *max9850 = snd_soc_component_get_drvdata(component);
+	int ret;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+			ret = regcache_sync(max9850->regmap);
+			if (ret) {
+				dev_err(component->dev,
+					"Failed to sync cache: %d\n", ret);
+				return ret;
+			}
+		}
+		break;
+	case SND_SOC_BIAS_OFF:
+		break;
+	}
+	return 0;
+}
+
+#define MAX9850_RATES SNDRV_PCM_RATE_8000_48000
+
+#define MAX9850_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+	SNDRV_PCM_FMTBIT_S24_LE)
+
+static const struct snd_soc_dai_ops max9850_dai_ops = {
+	.hw_params	= max9850_hw_params,
+	.set_sysclk	= max9850_set_dai_sysclk,
+	.set_fmt	= max9850_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver max9850_dai = {
+	.name = "max9850-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = MAX9850_RATES,
+		.formats = MAX9850_FORMATS
+	},
+	.ops = &max9850_dai_ops,
+};
+
+static int max9850_probe(struct snd_soc_component *component)
+{
+	/* enable zero-detect */
+	snd_soc_component_update_bits(component, MAX9850_GENERAL_PURPOSE, 1, 1);
+	/* enable slew-rate control */
+	snd_soc_component_update_bits(component, MAX9850_VOLUME, 0x40, 0x40);
+	/* set slew-rate 125ms */
+	snd_soc_component_update_bits(component, MAX9850_CHARGE_PUMP, 0xff, 0xc0);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_max9850 = {
+	.probe			= max9850_probe,
+	.set_bias_level		= max9850_set_bias_level,
+	.controls		= max9850_controls,
+	.num_controls		= ARRAY_SIZE(max9850_controls),
+	.dapm_widgets		= max9850_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(max9850_dapm_widgets),
+	.dapm_routes		= max9850_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(max9850_dapm_routes),
+	.suspend_bias_off	= 1,
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static int max9850_i2c_probe(struct i2c_client *i2c)
+{
+	struct max9850_priv *max9850;
+	int ret;
+
+	max9850 = devm_kzalloc(&i2c->dev, sizeof(struct max9850_priv),
+			       GFP_KERNEL);
+	if (max9850 == NULL)
+		return -ENOMEM;
+
+	max9850->regmap = devm_regmap_init_i2c(i2c, &max9850_regmap);
+	if (IS_ERR(max9850->regmap))
+		return PTR_ERR(max9850->regmap);
+
+	i2c_set_clientdata(i2c, max9850);
+
+	ret = devm_snd_soc_register_component(&i2c->dev,
+			&soc_component_dev_max9850, &max9850_dai, 1);
+	return ret;
+}
+
+static const struct i2c_device_id max9850_i2c_id[] = {
+	{ "max9850", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max9850_i2c_id);
+
+static struct i2c_driver max9850_i2c_driver = {
+	.driver = {
+		.name = "max9850",
+	},
+	.probe_new = max9850_i2c_probe,
+	.id_table = max9850_i2c_id,
+};
+
+module_i2c_driver(max9850_i2c_driver);
+
+MODULE_AUTHOR("Christian Glindkamp <christian.glindkamp@taskit.de>");
+MODULE_DESCRIPTION("ASoC MAX9850 codec driver");
+MODULE_LICENSE("GPL");