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, 321 insertions, 0 deletions

diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c
new file mode 100644
index 000000000..a5f70efa2
--- /dev/null
+++ b/sound/firewire/motu/motu-protocol-v2.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * motu-protocol-v2.c - a part of driver for MOTU FireWire series
+ *
+ * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
+ */
+
+#include "motu.h"
+
+#define V2_CLOCK_STATUS_OFFSET			0x0b14
+#define  V2_CLOCK_RATE_MASK			0x00000038
+#define  V2_CLOCK_RATE_SHIFT			3
+#define  V2_CLOCK_SRC_MASK			0x00000007
+#define  V2_CLOCK_SRC_SHIFT			0
+#define   V2_CLOCK_SRC_AESEBU_ON_XLR		0x07	// In Traveler.
+#define   V2_CLOCK_SRC_ADAT_ON_DSUB		0x05
+#define   V2_CLOCK_SRC_WORD_ON_BNC		0x04
+#define   V2_CLOCK_SRC_SPH			0x03
+#define   V2_CLOCK_SRC_SPDIF			0x02	// on either coaxial or optical. AES/EBU in 896HD.
+#define   V2_CLOCK_SRC_ADAT_ON_OPT		0x01
+#define   V2_CLOCK_SRC_INTERNAL			0x00
+#define  V2_CLOCK_FETCH_ENABLE			0x02000000
+#define  V2_CLOCK_MODEL_SPECIFIC		0x04000000
+
+#define V2_IN_OUT_CONF_OFFSET			0x0c04
+#define  V2_OPT_OUT_IFACE_MASK			0x00000c00
+#define  V2_OPT_OUT_IFACE_SHIFT			10
+#define  V2_OPT_IN_IFACE_MASK			0x00000300
+#define  V2_OPT_IN_IFACE_SHIFT			8
+#define  V2_OPT_IFACE_MODE_NONE			0
+#define  V2_OPT_IFACE_MODE_ADAT			1
+#define  V2_OPT_IFACE_MODE_SPDIF		2
+
+static int get_clock_rate(u32 data, unsigned int *rate)
+{
+	unsigned int index = (data & V2_CLOCK_RATE_MASK) >> V2_CLOCK_RATE_SHIFT;
+	if (index >= ARRAY_SIZE(snd_motu_clock_rates))
+		return -EIO;
+
+	*rate = snd_motu_clock_rates[index];
+
+	return 0;
+}
+
+int snd_motu_protocol_v2_get_clock_rate(struct snd_motu *motu,
+					unsigned int *rate)
+{
+	__be32 reg;
+	int err;
+
+	err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET, &reg,
+					sizeof(reg));
+	if (err < 0)
+		return err;
+
+	return get_clock_rate(be32_to_cpu(reg), rate);
+}
+
+int snd_motu_protocol_v2_set_clock_rate(struct snd_motu *motu,
+					unsigned int rate)
+{
+	__be32 reg;
+	u32 data;
+	int i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(snd_motu_clock_rates); ++i) {
+		if (snd_motu_clock_rates[i] == rate)
+			break;
+	}
+	if (i == ARRAY_SIZE(snd_motu_clock_rates))
+		return -EINVAL;
+
+	err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET, &reg,
+					sizeof(reg));
+	if (err < 0)
+		return err;
+	data = be32_to_cpu(reg);
+
+	data &= ~V2_CLOCK_RATE_MASK;
+	data |= i << V2_CLOCK_RATE_SHIFT;
+
+	reg = cpu_to_be32(data);
+	return snd_motu_transaction_write(motu, V2_CLOCK_STATUS_OFFSET, &reg,
+					  sizeof(reg));
+}
+
+static int get_clock_source(struct snd_motu *motu, u32 data,
+			    enum snd_motu_clock_source *src)
+{
+	switch (data & V2_CLOCK_SRC_MASK) {
+	case V2_CLOCK_SRC_INTERNAL:
+		*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
+		break;
+	case V2_CLOCK_SRC_ADAT_ON_OPT:
+		*src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT;
+		break;
+	case V2_CLOCK_SRC_SPDIF:
+	{
+		bool support_iec60958_on_opt = (motu->spec == &snd_motu_spec_828mk2 ||
+						motu->spec == &snd_motu_spec_traveler);
+
+		if (motu->spec == &snd_motu_spec_896hd) {
+			*src = SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR;
+		} else if (!support_iec60958_on_opt) {
+			*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
+		} else {
+			__be32 reg;
+
+			// To check the configuration of optical interface.
+			int err = snd_motu_transaction_read(motu, V2_IN_OUT_CONF_OFFSET, &reg,
+							    sizeof(reg));
+			if (err < 0)
+				return err;
+
+			if (((data & V2_OPT_IN_IFACE_MASK) >> V2_OPT_IN_IFACE_SHIFT) ==
+			    V2_OPT_IFACE_MODE_SPDIF)
+				*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT;
+			else
+				*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
+		}
+		break;
+	}
+	case V2_CLOCK_SRC_SPH:
+		*src = SND_MOTU_CLOCK_SOURCE_SPH;
+		break;
+	case V2_CLOCK_SRC_WORD_ON_BNC:
+		*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
+		break;
+	case V2_CLOCK_SRC_ADAT_ON_DSUB:
+		*src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB;
+		break;
+	case V2_CLOCK_SRC_AESEBU_ON_XLR:
+		// For Traveler.
+		*src = SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR;
+		break;
+	default:
+		*src = SND_MOTU_CLOCK_SOURCE_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+int snd_motu_protocol_v2_get_clock_source(struct snd_motu *motu,
+					  enum snd_motu_clock_source *src)
+{
+	__be32 reg;
+	int err;
+
+	err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET, &reg,
+					sizeof(reg));
+	if (err < 0)
+		return err;
+
+	return get_clock_source(motu, be32_to_cpu(reg), src);
+}
+
+// Expected for Traveler, which implements Altera Cyclone EP1C3.
+static int switch_fetching_mode_cyclone(struct snd_motu *motu, u32 *data,
+					bool enable)
+{
+	*data |= V2_CLOCK_MODEL_SPECIFIC;
+
+	return 0;
+}
+
+// For UltraLite and 8pre, which implements Xilinx Spartan XC3S200.
+static int switch_fetching_mode_spartan(struct snd_motu *motu, u32 *data,
+					bool enable)
+{
+	unsigned int rate;
+	enum snd_motu_clock_source src;
+	int err;
+
+	err = get_clock_source(motu, *data, &src);
+	if (err < 0)
+		return err;
+
+	err = get_clock_rate(*data, &rate);
+	if (err < 0)
+		return err;
+
+	if (src == SND_MOTU_CLOCK_SOURCE_SPH && rate > 48000)
+		*data |= V2_CLOCK_MODEL_SPECIFIC;
+
+	return 0;
+}
+
+int snd_motu_protocol_v2_switch_fetching_mode(struct snd_motu *motu,
+					      bool enable)
+{
+	if (motu->spec == &snd_motu_spec_828mk2) {
+		// 828mkII implements Altera ACEX 1K EP1K30. Nothing to do.
+		return 0;
+	} else if (motu->spec == &snd_motu_spec_896hd) {
+		// 896HD implements Altera Cyclone EP1C3 but nothing to do.
+		return 0;
+	} else {
+		__be32 reg;
+		u32 data;
+		int err;
+
+		err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET,
+						&reg, sizeof(reg));
+		if (err < 0)
+			return err;
+		data = be32_to_cpu(reg);
+
+		data &= ~(V2_CLOCK_FETCH_ENABLE | V2_CLOCK_MODEL_SPECIFIC);
+		if (enable)
+			data |= V2_CLOCK_FETCH_ENABLE;
+
+		if (motu->spec == &snd_motu_spec_traveler)
+			err = switch_fetching_mode_cyclone(motu, &data, enable);
+		else
+			err = switch_fetching_mode_spartan(motu, &data, enable);
+		if (err < 0)
+			return err;
+
+		reg = cpu_to_be32(data);
+		return snd_motu_transaction_write(motu, V2_CLOCK_STATUS_OFFSET,
+						  &reg, sizeof(reg));
+	}
+}
+
+int snd_motu_protocol_v2_cache_packet_formats(struct snd_motu *motu)
+{
+	bool has_two_opt_ifaces = (motu->spec == &snd_motu_spec_8pre);
+	__be32 reg;
+	u32 data;
+	int err;
+
+	motu->tx_packet_formats.pcm_byte_offset = 10;
+	motu->rx_packet_formats.pcm_byte_offset = 10;
+
+	motu->tx_packet_formats.msg_chunks = 2;
+	motu->rx_packet_formats.msg_chunks = 2;
+
+	err = snd_motu_transaction_read(motu, V2_IN_OUT_CONF_OFFSET, &reg,
+					sizeof(reg));
+	if (err < 0)
+		return err;
+	data = be32_to_cpu(reg);
+
+	memcpy(motu->tx_packet_formats.pcm_chunks,
+	       motu->spec->tx_fixed_pcm_chunks,
+	       sizeof(motu->tx_packet_formats.pcm_chunks));
+	memcpy(motu->rx_packet_formats.pcm_chunks,
+	       motu->spec->rx_fixed_pcm_chunks,
+	       sizeof(motu->rx_packet_formats.pcm_chunks));
+
+	if (((data & V2_OPT_IN_IFACE_MASK) >> V2_OPT_IN_IFACE_SHIFT) == V2_OPT_IFACE_MODE_ADAT) {
+		motu->tx_packet_formats.pcm_chunks[0] += 8;
+
+		if (!has_two_opt_ifaces)
+			motu->tx_packet_formats.pcm_chunks[1] += 4;
+		else
+			motu->tx_packet_formats.pcm_chunks[1] += 8;
+	}
+
+	if (((data & V2_OPT_OUT_IFACE_MASK) >> V2_OPT_OUT_IFACE_SHIFT) == V2_OPT_IFACE_MODE_ADAT) {
+		motu->rx_packet_formats.pcm_chunks[0] += 8;
+
+		if (!has_two_opt_ifaces)
+			motu->rx_packet_formats.pcm_chunks[1] += 4;
+		else
+			motu->rx_packet_formats.pcm_chunks[1] += 8;
+	}
+
+	return 0;
+}
+
+const struct snd_motu_spec snd_motu_spec_828mk2 = {
+	.name = "828mk2",
+	.protocol_version = SND_MOTU_PROTOCOL_V2,
+	.flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_TX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_REGISTER_DSP,
+	.tx_fixed_pcm_chunks = {14, 14, 0},
+	.rx_fixed_pcm_chunks = {14, 14, 0},
+};
+
+const struct snd_motu_spec snd_motu_spec_896hd = {
+	.name = "896HD",
+	.protocol_version = SND_MOTU_PROTOCOL_V2,
+	.flags = SND_MOTU_SPEC_REGISTER_DSP,
+	.tx_fixed_pcm_chunks = {14, 14, 8},
+	.rx_fixed_pcm_chunks = {14, 14, 8},
+};
+
+const struct snd_motu_spec snd_motu_spec_traveler = {
+	.name = "Traveler",
+	.protocol_version = SND_MOTU_PROTOCOL_V2,
+	.flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_TX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_REGISTER_DSP,
+	.tx_fixed_pcm_chunks = {14, 14, 8},
+	.rx_fixed_pcm_chunks = {14, 14, 8},
+};
+
+const struct snd_motu_spec snd_motu_spec_ultralite = {
+	.name = "UltraLite",
+	.protocol_version = SND_MOTU_PROTOCOL_V2,
+	.flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_TX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_REGISTER_DSP,
+	.tx_fixed_pcm_chunks = {14, 14, 0},
+	.rx_fixed_pcm_chunks = {14, 14, 0},
+};
+
+const struct snd_motu_spec snd_motu_spec_8pre = {
+	.name = "8pre",
+	.protocol_version = SND_MOTU_PROTOCOL_V2,
+	.flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_TX_MIDI_2ND_Q |
+		 SND_MOTU_SPEC_REGISTER_DSP,
+	// Two dummy chunks always in the end of data block.
+	.tx_fixed_pcm_chunks = {10, 10, 0},
+	.rx_fixed_pcm_chunks = {6, 6, 0},
+};