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, 322 insertions, 0 deletions

diff --git a/sound/soc/amd/acp/acp-platform.c b/sound/soc/amd/acp/acp-platform.c
new file mode 100644
index 000000000..447612a7a
--- /dev/null
+++ b/sound/soc/amd/acp/acp-platform.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+
+/*
+ * Generic interface for ACP audio blck PCM component
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
+#include <linux/dma-mapping.h>
+
+#include "amd.h"
+
+#define DRV_NAME "acp_i2s_dma"
+
+static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE |  SNDRV_PCM_FMTBIT_S8 |
+		   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 2,
+	.channels_max = 8,
+	.rates = SNDRV_PCM_RATE_8000_96000,
+	.rate_min = 8000,
+	.rate_max = 96000,
+	.buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE,
+	.period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE,
+	.period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE,
+	.periods_min = PLAYBACK_MIN_NUM_PERIODS,
+	.periods_max = PLAYBACK_MAX_NUM_PERIODS,
+};
+
+static const struct snd_pcm_hardware acp_pcm_hardware_capture = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+		   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 2,
+	.channels_max = 2,
+	.rates = SNDRV_PCM_RATE_8000_48000,
+	.rate_min = 8000,
+	.rate_max = 48000,
+	.buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE,
+	.period_bytes_min = CAPTURE_MIN_PERIOD_SIZE,
+	.period_bytes_max = CAPTURE_MAX_PERIOD_SIZE,
+	.periods_min = CAPTURE_MIN_NUM_PERIODS,
+	.periods_max = CAPTURE_MAX_NUM_PERIODS,
+};
+
+int acp_machine_select(struct acp_dev_data *adata)
+{
+	struct snd_soc_acpi_mach *mach;
+	int size;
+
+	size = sizeof(*adata->machines);
+	mach = snd_soc_acpi_find_machine(adata->machines);
+	if (!mach) {
+		dev_err(adata->dev, "warning: No matching ASoC machine driver found\n");
+		return -EINVAL;
+	}
+
+	adata->mach_dev = platform_device_register_data(adata->dev, mach->drv_name,
+							PLATFORM_DEVID_NONE, mach, size);
+	if (IS_ERR(adata->mach_dev))
+		dev_warn(adata->dev, "Unable to register Machine device\n");
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_machine_select, SND_SOC_ACP_COMMON);
+
+static irqreturn_t i2s_irq_handler(int irq, void *data)
+{
+	struct acp_dev_data *adata = data;
+	struct acp_resource *rsrc = adata->rsrc;
+	struct acp_stream *stream;
+	u16 i2s_flag = 0;
+	u32 ext_intr_stat, ext_intr_stat1;
+
+	if (!adata)
+		return IRQ_NONE;
+
+	if (adata->rsrc->no_of_ctrls == 2)
+		ext_intr_stat1 = readl(ACP_EXTERNAL_INTR_STAT(adata, (rsrc->irqp_used - 1)));
+
+	ext_intr_stat = readl(ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
+
+	spin_lock(&adata->acp_lock);
+	list_for_each_entry(stream, &adata->stream_list, list) {
+		if (ext_intr_stat & stream->irq_bit) {
+			writel(stream->irq_bit,
+			       ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
+			snd_pcm_period_elapsed(stream->substream);
+			i2s_flag = 1;
+		}
+		if (adata->rsrc->no_of_ctrls == 2) {
+			if (ext_intr_stat1 & stream->irq_bit) {
+				writel(stream->irq_bit, ACP_EXTERNAL_INTR_STAT(adata,
+				       (rsrc->irqp_used - 1)));
+				snd_pcm_period_elapsed(stream->substream);
+				i2s_flag = 1;
+			}
+		}
+	}
+	spin_unlock(&adata->acp_lock);
+	if (i2s_flag)
+		return IRQ_HANDLED;
+
+	return IRQ_NONE;
+}
+
+static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream)
+{
+	struct acp_resource *rsrc = adata->rsrc;
+	u32 pte_reg, pte_size, reg_val;
+
+	/* Use ATU base Group5 */
+	pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_5;
+	pte_size =  ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5;
+	stream->reg_offset = 0x02000000;
+
+	/* Group Enable */
+	reg_val = rsrc->sram_pte_offset;
+	writel(reg_val | BIT(31), adata->acp_base + pte_reg);
+	writel(PAGE_SIZE_4K_ENABLE,  adata->acp_base + pte_size);
+	writel(0x01, adata->acp_base + ACPAXI2AXI_ATU_CTRL);
+}
+
+static void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size)
+{
+	struct snd_pcm_substream *substream = stream->substream;
+	struct acp_resource *rsrc = adata->rsrc;
+	dma_addr_t addr = substream->dma_buffer.addr;
+	int num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
+	u32 low, high, val;
+	u16 page_idx;
+
+	val = stream->pte_offset;
+
+	for (page_idx = 0; page_idx < num_pages; page_idx++) {
+		/* Load the low address of page int ACP SRAM through SRBM */
+		low = lower_32_bits(addr);
+		high = upper_32_bits(addr);
+		writel(low, adata->acp_base + rsrc->scratch_reg_offset + val);
+		high |= BIT(31);
+		writel(high, adata->acp_base + rsrc->scratch_reg_offset + val + 4);
+
+		/* Move to next physically contiguous page */
+		val += 8;
+		addr += PAGE_SIZE;
+	}
+}
+
+static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream;
+	int ret;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (!stream)
+		return -ENOMEM;
+
+	stream->substream = substream;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		runtime->hw = acp_pcm_hardware_playback;
+	else
+		runtime->hw = acp_pcm_hardware_capture;
+
+	ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		dev_err(component->dev, "set integer constraint failed\n");
+		kfree(stream);
+		return ret;
+	}
+	runtime->private_data = stream;
+
+	writel(1, ACP_EXTERNAL_INTR_ENB(adata));
+
+	spin_lock_irq(&adata->acp_lock);
+	list_add_tail(&stream->list, &adata->stream_list);
+	spin_unlock_irq(&adata->acp_lock);
+
+	return ret;
+}
+
+static int acp_dma_hw_params(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct acp_dev_data *adata = snd_soc_component_get_drvdata(component);
+	struct acp_stream *stream = substream->runtime->private_data;
+	u64 size = params_buffer_bytes(params);
+
+	/* Configure ACP DMA block with params */
+	config_pte_for_stream(adata, stream);
+	config_acp_dma(adata, stream, size);
+
+	return 0;
+}
+
+static snd_pcm_uframes_t acp_dma_pointer(struct snd_soc_component *component,
+					 struct snd_pcm_substream *substream)
+{
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream = substream->runtime->private_data;
+	u32 pos, buffersize;
+	u64 bytescount;
+
+	buffersize = frames_to_bytes(substream->runtime,
+				     substream->runtime->buffer_size);
+
+	bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream);
+
+	if (bytescount > stream->bytescount)
+		bytescount -= stream->bytescount;
+
+	pos = do_div(bytescount, buffersize);
+
+	return bytes_to_frames(substream->runtime, pos);
+}
+
+static int acp_dma_new(struct snd_soc_component *component,
+		       struct snd_soc_pcm_runtime *rtd)
+{
+	struct device *parent = component->dev->parent;
+
+	snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+				       parent, MIN_BUFFER, MAX_BUFFER);
+	return 0;
+}
+
+static int acp_dma_close(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream = substream->runtime->private_data;
+
+	/* Remove entry from list */
+	spin_lock_irq(&adata->acp_lock);
+	list_del(&stream->list);
+	spin_unlock_irq(&adata->acp_lock);
+	kfree(stream);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver acp_pcm_component = {
+	.name			= DRV_NAME,
+	.open			= acp_dma_open,
+	.close			= acp_dma_close,
+	.hw_params		= acp_dma_hw_params,
+	.pointer		= acp_dma_pointer,
+	.pcm_construct		= acp_dma_new,
+	.legacy_dai_naming	= 1,
+};
+
+int acp_platform_register(struct device *dev)
+{
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct snd_soc_dai_driver;
+	unsigned int status;
+
+	status = devm_request_irq(dev, adata->i2s_irq, i2s_irq_handler,
+				  IRQF_SHARED, "ACP_I2S_IRQ", adata);
+	if (status) {
+		dev_err(dev, "ACP I2S IRQ request failed\n");
+		return status;
+	}
+
+	status = devm_snd_soc_register_component(dev, &acp_pcm_component,
+						 adata->dai_driver,
+						 adata->num_dai);
+	if (status) {
+		dev_err(dev, "Fail to register acp i2s component\n");
+		return status;
+	}
+
+	INIT_LIST_HEAD(&adata->stream_list);
+	spin_lock_init(&adata->acp_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_platform_register, SND_SOC_ACP_COMMON);
+
+int acp_platform_unregister(struct device *dev)
+{
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+
+	if (adata->mach_dev)
+		platform_device_unregister(adata->mach_dev);
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_platform_unregister, SND_SOC_ACP_COMMON);
+
+MODULE_DESCRIPTION("AMD ACP PCM Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS(DRV_NAME);