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, 317 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_rpmsg.c b/sound/soc/fsl/fsl_rpmsg.c
new file mode 100644
index 000000000..46c7868a2
--- /dev/null
+++ b/sound/soc/fsl/fsl_rpmsg.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2018-2021 NXP
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/rpmsg.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_rpmsg.h"
+#include "imx-pcm.h"
+
+#define FSL_RPMSG_RATES        (SNDRV_PCM_RATE_8000 | \
+				SNDRV_PCM_RATE_16000 | \
+				SNDRV_PCM_RATE_48000)
+#define FSL_RPMSG_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
+
+/* 192kHz/32bit/2ch/60s size is 0x574e00 */
+#define LPA_LARGE_BUFFER_SIZE  (0x6000000)
+
+static const unsigned int fsl_rpmsg_rates[] = {
+	8000, 11025, 16000, 22050, 44100,
+	32000, 48000, 96000, 88200, 176400, 192000,
+	352800, 384000, 705600, 768000, 1411200, 2822400,
+};
+
+static const struct snd_pcm_hw_constraint_list fsl_rpmsg_rate_constraints = {
+	.count = ARRAY_SIZE(fsl_rpmsg_rates),
+	.list = fsl_rpmsg_rates,
+};
+
+static int fsl_rpmsg_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai)
+{
+	struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+	struct clk *p = rpmsg->mclk, *pll = NULL, *npll = NULL;
+	u64 rate = params_rate(params);
+	int ret = 0;
+
+	/* Get current pll parent */
+	while (p && rpmsg->pll8k && rpmsg->pll11k) {
+		struct clk *pp = clk_get_parent(p);
+
+		if (clk_is_match(pp, rpmsg->pll8k) ||
+		    clk_is_match(pp, rpmsg->pll11k)) {
+			pll = pp;
+			break;
+		}
+		p = pp;
+	}
+
+	/* Switch to another pll parent if needed. */
+	if (pll) {
+		npll = (do_div(rate, 8000) ? rpmsg->pll11k : rpmsg->pll8k);
+		if (!clk_is_match(pll, npll)) {
+			ret = clk_set_parent(p, npll);
+			if (ret < 0)
+				dev_warn(dai->dev, "failed to set parent %s: %d\n",
+					 __clk_get_name(npll), ret);
+		}
+	}
+
+	if (!(rpmsg->mclk_streams & BIT(substream->stream))) {
+		ret = clk_prepare_enable(rpmsg->mclk);
+		if (ret) {
+			dev_err(dai->dev, "failed to enable mclk: %d\n", ret);
+			return ret;
+		}
+
+		rpmsg->mclk_streams |= BIT(substream->stream);
+	}
+
+	return ret;
+}
+
+static int fsl_rpmsg_hw_free(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+
+	if (rpmsg->mclk_streams & BIT(substream->stream)) {
+		clk_disable_unprepare(rpmsg->mclk);
+		rpmsg->mclk_streams &= ~BIT(substream->stream);
+	}
+
+	return 0;
+}
+
+static int fsl_rpmsg_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *cpu_dai)
+{
+	int ret;
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_RATE,
+					 &fsl_rpmsg_rate_constraints);
+
+	return ret;
+}
+
+static const struct snd_soc_dai_ops fsl_rpmsg_dai_ops = {
+	.startup	= fsl_rpmsg_startup,
+	.hw_params      = fsl_rpmsg_hw_params,
+	.hw_free        = fsl_rpmsg_hw_free,
+};
+
+static struct snd_soc_dai_driver fsl_rpmsg_dai = {
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 2,
+		.channels_max = 32,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_RPMSG_FORMATS,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 2,
+		.channels_max = 32,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_RPMSG_FORMATS,
+	},
+	.symmetric_rate        = 1,
+	.symmetric_channels    = 1,
+	.symmetric_sample_bits = 1,
+	.ops = &fsl_rpmsg_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_component = {
+	.name			= "fsl-rpmsg",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct fsl_rpmsg_soc_data imx7ulp_data = {
+	.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
+		 SNDRV_PCM_RATE_48000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mm_data = {
+	.rates = SNDRV_PCM_RATE_KNOT,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_DSD_U8 |
+		   SNDRV_PCM_FMTBIT_DSD_U16_LE | SNDRV_PCM_FMTBIT_DSD_U32_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mn_data = {
+	.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+		 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+		 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+		 SNDRV_PCM_RATE_192000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mp_data = {
+	.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+		 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+		 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+		 SNDRV_PCM_RATE_192000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+};
+
+static const struct of_device_id fsl_rpmsg_ids[] = {
+	{ .compatible = "fsl,imx7ulp-rpmsg-audio", .data = &imx7ulp_data},
+	{ .compatible = "fsl,imx8mm-rpmsg-audio", .data = &imx8mm_data},
+	{ .compatible = "fsl,imx8mn-rpmsg-audio", .data = &imx8mn_data},
+	{ .compatible = "fsl,imx8mp-rpmsg-audio", .data = &imx8mp_data},
+	{ .compatible = "fsl,imx8ulp-rpmsg-audio", .data = &imx7ulp_data},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_rpmsg_ids);
+
+static int fsl_rpmsg_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_rpmsg *rpmsg;
+	int ret;
+
+	rpmsg = devm_kzalloc(&pdev->dev, sizeof(struct fsl_rpmsg), GFP_KERNEL);
+	if (!rpmsg)
+		return -ENOMEM;
+
+	rpmsg->soc_data = of_device_get_match_data(&pdev->dev);
+
+	fsl_rpmsg_dai.playback.rates = rpmsg->soc_data->rates;
+	fsl_rpmsg_dai.capture.rates = rpmsg->soc_data->rates;
+	fsl_rpmsg_dai.playback.formats = rpmsg->soc_data->formats;
+	fsl_rpmsg_dai.capture.formats = rpmsg->soc_data->formats;
+
+	if (of_property_read_bool(np, "fsl,enable-lpa")) {
+		rpmsg->enable_lpa = 1;
+		rpmsg->buffer_size = LPA_LARGE_BUFFER_SIZE;
+	} else {
+		rpmsg->buffer_size = IMX_DEFAULT_DMABUF_SIZE;
+	}
+
+	/* Get the optional clocks */
+	rpmsg->ipg = devm_clk_get_optional(&pdev->dev, "ipg");
+	if (IS_ERR(rpmsg->ipg))
+		return PTR_ERR(rpmsg->ipg);
+
+	rpmsg->mclk = devm_clk_get_optional(&pdev->dev, "mclk");
+	if (IS_ERR(rpmsg->mclk))
+		return PTR_ERR(rpmsg->mclk);
+
+	rpmsg->dma = devm_clk_get_optional(&pdev->dev, "dma");
+	if (IS_ERR(rpmsg->dma))
+		return PTR_ERR(rpmsg->dma);
+
+	rpmsg->pll8k = devm_clk_get_optional(&pdev->dev, "pll8k");
+	if (IS_ERR(rpmsg->pll8k))
+		return PTR_ERR(rpmsg->pll8k);
+
+	rpmsg->pll11k = devm_clk_get_optional(&pdev->dev, "pll11k");
+	if (IS_ERR(rpmsg->pll11k))
+		return PTR_ERR(rpmsg->pll11k);
+
+	platform_set_drvdata(pdev, rpmsg);
+	pm_runtime_enable(&pdev->dev);
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
+					      &fsl_rpmsg_dai, 1);
+	if (ret)
+		return ret;
+
+	rpmsg->card_pdev = platform_device_register_data(&pdev->dev,
+							 "imx-audio-rpmsg",
+							 PLATFORM_DEVID_AUTO,
+							 NULL,
+							 0);
+	if (IS_ERR(rpmsg->card_pdev)) {
+		dev_err(&pdev->dev, "failed to register rpmsg card\n");
+		ret = PTR_ERR(rpmsg->card_pdev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_rpmsg_remove(struct platform_device *pdev)
+{
+	struct fsl_rpmsg *rpmsg = platform_get_drvdata(pdev);
+
+	if (rpmsg->card_pdev)
+		platform_device_unregister(rpmsg->card_pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_rpmsg_runtime_resume(struct device *dev)
+{
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(rpmsg->ipg);
+	if (ret) {
+		dev_err(dev, "failed to enable ipg clock: %d\n", ret);
+		goto ipg_err;
+	}
+
+	ret = clk_prepare_enable(rpmsg->dma);
+	if (ret) {
+		dev_err(dev, "Failed to enable dma clock %d\n", ret);
+		goto dma_err;
+	}
+
+	return 0;
+
+dma_err:
+	clk_disable_unprepare(rpmsg->ipg);
+ipg_err:
+	return ret;
+}
+
+static int fsl_rpmsg_runtime_suspend(struct device *dev)
+{
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rpmsg->dma);
+	clk_disable_unprepare(rpmsg->ipg);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops fsl_rpmsg_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_rpmsg_runtime_suspend,
+			   fsl_rpmsg_runtime_resume,
+			   NULL)
+};
+
+static struct platform_driver fsl_rpmsg_driver = {
+	.probe  = fsl_rpmsg_probe,
+	.remove = fsl_rpmsg_remove,
+	.driver = {
+		.name = "fsl_rpmsg",
+		.pm = &fsl_rpmsg_pm_ops,
+		.of_match_table = fsl_rpmsg_ids,
+	},
+};
+module_platform_driver(fsl_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio PRMSG CPU Interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:fsl_rpmsg");
+MODULE_LICENSE("GPL");