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, 301 insertions, 0 deletions

diff --git a/sound/soc/qcom/lpass-cdc-dma.c b/sound/soc/qcom/lpass-cdc-dma.c
new file mode 100644
index 000000000..31b9f1c22
--- /dev/null
+++ b/sound/soc/qcom/lpass-cdc-dma.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 The Linux Foundation. All rights reserved.
+ *
+ * lpass-cdc-dma.c -- ALSA SoC CDC DMA CPU DAI driver for QTi LPASS
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "lpass-lpaif-reg.h"
+#include "lpass.h"
+
+#define CODEC_MEM_HZ_NORMAL 153600000
+
+enum codec_dma_interfaces {
+	LPASS_CDC_DMA_INTERFACE1 = 1,
+	LPASS_CDC_DMA_INTERFACE2,
+	LPASS_CDC_DMA_INTERFACE3,
+	LPASS_CDC_DMA_INTERFACE4,
+	LPASS_CDC_DMA_INTERFACE5,
+	LPASS_CDC_DMA_INTERFACE6,
+	LPASS_CDC_DMA_INTERFACE7,
+	LPASS_CDC_DMA_INTERFACE8,
+	LPASS_CDC_DMA_INTERFACE9,
+	LPASS_CDC_DMA_INTERFACE10,
+};
+
+static void __lpass_get_dmactl_handle(struct snd_pcm_substream *substream, struct snd_soc_dai *dai,
+				      struct lpaif_dmactl **dmactl, int *id)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
+	struct lpass_variant *v = drvdata->variant;
+	unsigned int dai_id = cpu_dai->driver->id;
+
+	switch (dai_id) {
+	case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+		*dmactl = drvdata->rxtx_rd_dmactl;
+		*id = pcm_data->dma_ch;
+		break;
+	case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+		*dmactl = drvdata->rxtx_wr_dmactl;
+		*id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start;
+		break;
+	case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+		*dmactl = drvdata->va_wr_dmactl;
+		*id = pcm_data->dma_ch - v->va_wrdma_channel_start;
+		break;
+	default:
+		dev_err(soc_runtime->dev, "invalid dai id for dma ctl: %d\n", dai_id);
+		break;
+	}
+}
+
+static int __lpass_get_codec_dma_intf_type(int dai_id)
+{
+	int ret;
+
+	switch (dai_id) {
+	case LPASS_CDC_DMA_RX0:
+	case LPASS_CDC_DMA_TX0:
+	case LPASS_CDC_DMA_VA_TX0:
+		ret = LPASS_CDC_DMA_INTERFACE1;
+		break;
+	case LPASS_CDC_DMA_RX1:
+	case LPASS_CDC_DMA_TX1:
+	case LPASS_CDC_DMA_VA_TX1:
+		ret = LPASS_CDC_DMA_INTERFACE2;
+		break;
+	case LPASS_CDC_DMA_RX2:
+	case LPASS_CDC_DMA_TX2:
+	case LPASS_CDC_DMA_VA_TX2:
+		ret = LPASS_CDC_DMA_INTERFACE3;
+		break;
+	case LPASS_CDC_DMA_RX3:
+	case LPASS_CDC_DMA_TX3:
+	case LPASS_CDC_DMA_VA_TX3:
+		ret = LPASS_CDC_DMA_INTERFACE4;
+		break;
+	case LPASS_CDC_DMA_RX4:
+	case LPASS_CDC_DMA_TX4:
+	case LPASS_CDC_DMA_VA_TX4:
+		ret = LPASS_CDC_DMA_INTERFACE5;
+		break;
+	case LPASS_CDC_DMA_RX5:
+	case LPASS_CDC_DMA_TX5:
+	case LPASS_CDC_DMA_VA_TX5:
+		ret = LPASS_CDC_DMA_INTERFACE6;
+		break;
+	case LPASS_CDC_DMA_RX6:
+	case LPASS_CDC_DMA_TX6:
+	case LPASS_CDC_DMA_VA_TX6:
+		ret = LPASS_CDC_DMA_INTERFACE7;
+		break;
+	case LPASS_CDC_DMA_RX7:
+	case LPASS_CDC_DMA_TX7:
+	case LPASS_CDC_DMA_VA_TX7:
+		ret = LPASS_CDC_DMA_INTERFACE8;
+		break;
+	case LPASS_CDC_DMA_RX8:
+	case LPASS_CDC_DMA_TX8:
+	case LPASS_CDC_DMA_VA_TX8:
+		ret = LPASS_CDC_DMA_INTERFACE9;
+		break;
+	case LPASS_CDC_DMA_RX9:
+		ret  = LPASS_CDC_DMA_INTERFACE10;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+static int __lpass_platform_codec_intf_init(struct snd_soc_dai *dai,
+					    struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+	struct lpaif_dmactl *dmactl = NULL;
+	struct device *dev = soc_runtime->dev;
+	int ret, id, codec_intf;
+	unsigned int dai_id = cpu_dai->driver->id;
+
+	codec_intf = __lpass_get_codec_dma_intf_type(dai_id);
+	if (codec_intf < 0) {
+		dev_err(dev, "failed to get codec_intf: %d\n", codec_intf);
+		return codec_intf;
+	}
+
+	__lpass_get_dmactl_handle(substream, dai, &dmactl, &id);
+	if (!dmactl)
+		return -EINVAL;
+
+	ret = regmap_fields_write(dmactl->codec_intf, id, codec_intf);
+	if (ret) {
+		dev_err(dev, "error writing to dmactl codec_intf reg field: %d\n", ret);
+		return ret;
+	}
+	ret = regmap_fields_write(dmactl->codec_fs_sel, id, 0x0);
+	if (ret) {
+		dev_err(dev, "error writing to dmactl codec_fs_sel reg field: %d\n", ret);
+		return ret;
+	}
+	ret = regmap_fields_write(dmactl->codec_fs_delay, id, 0x0);
+	if (ret) {
+		dev_err(dev, "error writing to dmactl codec_fs_delay reg field: %d\n", ret);
+		return ret;
+	}
+	ret = regmap_fields_write(dmactl->codec_pack, id, 0x1);
+	if (ret) {
+		dev_err(dev, "error writing to dmactl codec_pack reg field: %d\n", ret);
+		return ret;
+	}
+	ret = regmap_fields_write(dmactl->codec_enable, id, LPAIF_DMACTL_ENABLE_ON);
+	if (ret) {
+		dev_err(dev, "error writing to dmactl codec_enable reg field: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int lpass_cdc_dma_daiops_startup(struct snd_pcm_substream *substream,
+				    struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+
+	switch (dai->id) {
+	case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+	case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+		clk_set_rate(drvdata->codec_mem0, CODEC_MEM_HZ_NORMAL);
+		clk_prepare_enable(drvdata->codec_mem0);
+		break;
+	case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX0:
+		clk_set_rate(drvdata->va_mem0, CODEC_MEM_HZ_NORMAL);
+		clk_prepare_enable(drvdata->va_mem0);
+		break;
+	default:
+		dev_err(soc_runtime->dev, "%s: invalid  interface: %d\n", __func__, dai->id);
+		break;
+	}
+	return 0;
+}
+
+static void lpass_cdc_dma_daiops_shutdown(struct snd_pcm_substream *substream,
+				      struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+
+	switch (dai->id) {
+	case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+	case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+		clk_disable_unprepare(drvdata->codec_mem0);
+		break;
+	case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX0:
+		clk_disable_unprepare(drvdata->va_mem0);
+		break;
+	default:
+		dev_err(soc_runtime->dev, "%s: invalid  interface: %d\n", __func__, dai->id);
+		break;
+	}
+}
+
+static int lpass_cdc_dma_daiops_hw_params(struct snd_pcm_substream *substream,
+				      struct snd_pcm_hw_params *params,
+				      struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct lpaif_dmactl *dmactl = NULL;
+	unsigned int ret, regval;
+	unsigned int channels = params_channels(params);
+	int id;
+
+	switch (channels) {
+	case 1:
+		regval = LPASS_CDC_DMA_INTF_ONE_CHANNEL;
+		break;
+	case 2:
+		regval = LPASS_CDC_DMA_INTF_TWO_CHANNEL;
+		break;
+	case 4:
+		regval = LPASS_CDC_DMA_INTF_FOUR_CHANNEL;
+		break;
+	case 6:
+		regval = LPASS_CDC_DMA_INTF_SIX_CHANNEL;
+		break;
+	case 8:
+		regval = LPASS_CDC_DMA_INTF_EIGHT_CHANNEL;
+		break;
+	default:
+		dev_err(soc_runtime->dev, "invalid PCM config\n");
+		return -EINVAL;
+	}
+
+	__lpass_get_dmactl_handle(substream, dai, &dmactl, &id);
+	if (!dmactl)
+		return -EINVAL;
+
+	ret = regmap_fields_write(dmactl->codec_channel, id, regval);
+	if (ret) {
+		dev_err(soc_runtime->dev,
+			"error writing to dmactl codec_channel reg field: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int lpass_cdc_dma_daiops_trigger(struct snd_pcm_substream *substream,
+				    int cmd, struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct lpaif_dmactl *dmactl;
+	int ret = 0, id;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		__lpass_platform_codec_intf_init(dai, substream);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		__lpass_get_dmactl_handle(substream, dai, &dmactl, &id);
+		if (!dmactl)
+			return -EINVAL;
+
+		ret = regmap_fields_write(dmactl->codec_enable, id, LPAIF_DMACTL_ENABLE_OFF);
+		if (ret) {
+			dev_err(soc_runtime->dev,
+				"error writing to dmactl codec_enable reg: %d\n", ret);
+			return ret;
+		}
+		break;
+	default:
+		ret = -EINVAL;
+		dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, cmd);
+		break;
+	}
+	return ret;
+}
+
+const struct snd_soc_dai_ops asoc_qcom_lpass_cdc_dma_dai_ops = {
+	.startup	= lpass_cdc_dma_daiops_startup,
+	.shutdown	= lpass_cdc_dma_daiops_shutdown,
+	.hw_params	= lpass_cdc_dma_daiops_hw_params,
+	.trigger	= lpass_cdc_dma_daiops_trigger,
+};
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cdc_dma_dai_ops);
+
+MODULE_DESCRIPTION("QTi LPASS CDC DMA Driver");
+MODULE_LICENSE("GPL");