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, 258 insertions, 0 deletions

diff --git a/sound/soc/xilinx/xlnx_i2s.c b/sound/soc/xilinx/xlnx_i2s.c
new file mode 100644
index 000000000..9de92d35e
--- /dev/null
+++ b/sound/soc/xilinx/xlnx_i2s.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Xilinx ASoC I2S audio support
+//
+// Copyright (C) 2018 Xilinx, Inc.
+//
+// Author: Praveen Vuppala <praveenv@xilinx.com>
+// Author: Maruthi Srinivas Bayyavarapu <maruthis@xilinx.com>
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define DRV_NAME "xlnx_i2s"
+
+#define I2S_CORE_CTRL_OFFSET		0x08
+#define I2S_CORE_CTRL_32BIT_LRCLK	BIT(3)
+#define I2S_CORE_CTRL_ENABLE		BIT(0)
+#define I2S_I2STIM_OFFSET		0x20
+#define I2S_CH0_OFFSET			0x30
+#define I2S_I2STIM_VALID_MASK		GENMASK(7, 0)
+
+struct xlnx_i2s_drv_data {
+	struct snd_soc_dai_driver dai_drv;
+	void __iomem *base;
+	unsigned int sysclk;
+	u32 data_width;
+	u32 channels;
+	bool is_32bit_lrclk;
+	struct snd_ratnum ratnum;
+	struct snd_pcm_hw_constraint_ratnums rate_constraints;
+};
+
+static int xlnx_i2s_set_sclkout_div(struct snd_soc_dai *cpu_dai,
+				    int div_id, int div)
+{
+	struct xlnx_i2s_drv_data *drv_data = snd_soc_dai_get_drvdata(cpu_dai);
+
+	if (!div || (div & ~I2S_I2STIM_VALID_MASK))
+		return -EINVAL;
+
+	drv_data->sysclk = 0;
+
+	writel(div, drv_data->base + I2S_I2STIM_OFFSET);
+
+	return 0;
+}
+
+static int xlnx_i2s_set_sysclk(struct snd_soc_dai *dai,
+			       int clk_id, unsigned int freq, int dir)
+{
+	struct xlnx_i2s_drv_data *drv_data = snd_soc_dai_get_drvdata(dai);
+
+	drv_data->sysclk = freq;
+	if (freq) {
+		unsigned int bits_per_sample;
+
+		if (drv_data->is_32bit_lrclk)
+			bits_per_sample = 32;
+		else
+			bits_per_sample = drv_data->data_width;
+
+		drv_data->ratnum.num = freq / (bits_per_sample * drv_data->channels) / 2;
+		drv_data->ratnum.den_step = 1;
+		drv_data->ratnum.den_min = 1;
+		drv_data->ratnum.den_max = 255;
+		drv_data->rate_constraints.rats = &drv_data->ratnum;
+		drv_data->rate_constraints.nrats = 1;
+	}
+	return 0;
+}
+
+static int xlnx_i2s_startup(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai)
+{
+	struct xlnx_i2s_drv_data *drv_data = snd_soc_dai_get_drvdata(dai);
+
+	if (drv_data->sysclk)
+		return snd_pcm_hw_constraint_ratnums(substream->runtime, 0,
+						     SNDRV_PCM_HW_PARAM_RATE,
+						     &drv_data->rate_constraints);
+
+	return 0;
+}
+
+static int xlnx_i2s_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params,
+			      struct snd_soc_dai *i2s_dai)
+{
+	u32 reg_off, chan_id;
+	struct xlnx_i2s_drv_data *drv_data = snd_soc_dai_get_drvdata(i2s_dai);
+
+	if (drv_data->sysclk) {
+		unsigned int bits_per_sample, sclk, sclk_div;
+
+		if (drv_data->is_32bit_lrclk)
+			bits_per_sample = 32;
+		else
+			bits_per_sample = drv_data->data_width;
+
+		sclk = params_rate(params) * bits_per_sample * params_channels(params);
+		sclk_div = drv_data->sysclk / sclk / 2;
+
+		if ((drv_data->sysclk % sclk != 0) ||
+		    !sclk_div || (sclk_div & ~I2S_I2STIM_VALID_MASK)) {
+			dev_warn(i2s_dai->dev, "invalid SCLK divisor for sysclk %u and sclk %u\n",
+				 drv_data->sysclk, sclk);
+			return -EINVAL;
+		}
+		writel(sclk_div, drv_data->base + I2S_I2STIM_OFFSET);
+	}
+
+	chan_id = params_channels(params) / 2;
+
+	while (chan_id > 0) {
+		reg_off = I2S_CH0_OFFSET + ((chan_id - 1) * 4);
+		writel(chan_id, drv_data->base + reg_off);
+		chan_id--;
+	}
+
+	return 0;
+}
+
+static int xlnx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+			    struct snd_soc_dai *i2s_dai)
+{
+	struct xlnx_i2s_drv_data *drv_data = snd_soc_dai_get_drvdata(i2s_dai);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		writel(I2S_CORE_CTRL_ENABLE, drv_data->base + I2S_CORE_CTRL_OFFSET);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		writel(0, drv_data->base + I2S_CORE_CTRL_OFFSET);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops xlnx_i2s_dai_ops = {
+	.trigger = xlnx_i2s_trigger,
+	.set_sysclk = xlnx_i2s_set_sysclk,
+	.set_clkdiv = xlnx_i2s_set_sclkout_div,
+	.startup = xlnx_i2s_startup,
+	.hw_params = xlnx_i2s_hw_params
+};
+
+static const struct snd_soc_component_driver xlnx_i2s_component = {
+	.name = DRV_NAME,
+	.legacy_dai_naming = 1,
+};
+
+static const struct of_device_id xlnx_i2s_of_match[] = {
+	{ .compatible = "xlnx,i2s-transmitter-1.0", },
+	{ .compatible = "xlnx,i2s-receiver-1.0", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, xlnx_i2s_of_match);
+
+static int xlnx_i2s_probe(struct platform_device *pdev)
+{
+	struct xlnx_i2s_drv_data *drv_data;
+	int ret;
+	u32 format;
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+
+	drv_data = devm_kzalloc(&pdev->dev, sizeof(*drv_data), GFP_KERNEL);
+	if (!drv_data)
+		return -ENOMEM;
+
+	drv_data->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(drv_data->base))
+		return PTR_ERR(drv_data->base);
+
+	ret = of_property_read_u32(node, "xlnx,num-channels", &drv_data->channels);
+	if (ret < 0) {
+		dev_err(dev, "cannot get supported channels\n");
+		return ret;
+	}
+	drv_data->channels *= 2;
+
+	ret = of_property_read_u32(node, "xlnx,dwidth", &drv_data->data_width);
+	if (ret < 0) {
+		dev_err(dev, "cannot get data width\n");
+		return ret;
+	}
+	switch (drv_data->data_width) {
+	case 16:
+		format = SNDRV_PCM_FMTBIT_S16_LE;
+		break;
+	case 24:
+		format = SNDRV_PCM_FMTBIT_S24_LE;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (of_device_is_compatible(node, "xlnx,i2s-transmitter-1.0")) {
+		drv_data->dai_drv.name = "xlnx_i2s_playback";
+		drv_data->dai_drv.playback.stream_name = "Playback";
+		drv_data->dai_drv.playback.formats = format;
+		drv_data->dai_drv.playback.channels_min = drv_data->channels;
+		drv_data->dai_drv.playback.channels_max = drv_data->channels;
+		drv_data->dai_drv.playback.rates	= SNDRV_PCM_RATE_8000_192000;
+		drv_data->dai_drv.ops = &xlnx_i2s_dai_ops;
+	} else if (of_device_is_compatible(node, "xlnx,i2s-receiver-1.0")) {
+		drv_data->dai_drv.name = "xlnx_i2s_capture";
+		drv_data->dai_drv.capture.stream_name = "Capture";
+		drv_data->dai_drv.capture.formats = format;
+		drv_data->dai_drv.capture.channels_min = drv_data->channels;
+		drv_data->dai_drv.capture.channels_max = drv_data->channels;
+		drv_data->dai_drv.capture.rates = SNDRV_PCM_RATE_8000_192000;
+		drv_data->dai_drv.ops = &xlnx_i2s_dai_ops;
+	} else {
+		return -ENODEV;
+	}
+	drv_data->is_32bit_lrclk = readl(drv_data->base + I2S_CORE_CTRL_OFFSET) &
+				   I2S_CORE_CTRL_32BIT_LRCLK;
+
+	dev_set_drvdata(&pdev->dev, drv_data);
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &xlnx_i2s_component,
+					      &drv_data->dai_drv, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "i2s component registration failed\n");
+		return ret;
+	}
+
+	dev_info(&pdev->dev, "%s DAI registered\n", drv_data->dai_drv.name);
+
+	return ret;
+}
+
+static struct platform_driver xlnx_i2s_aud_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = xlnx_i2s_of_match,
+	},
+	.probe = xlnx_i2s_probe,
+};
+
+module_platform_driver(xlnx_i2s_aud_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Praveen Vuppala  <praveenv@xilinx.com>");
+MODULE_AUTHOR("Maruthi Srinivas Bayyavarapu <maruthis@xilinx.com>");