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, 184 insertions, 0 deletions

diff --git a/include/sound/seq_midi_emul.h b/include/sound/seq_midi_emul.h
new file mode 100644
index 000000000..88799d1e1
--- /dev/null
+++ b/include/sound/seq_midi_emul.h
@@ -0,0 +1,184 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __SOUND_SEQ_MIDI_EMUL_H
+#define __SOUND_SEQ_MIDI_EMUL_H
+
+/*
+ *  Midi channel definition for optional channel management.
+ *
+ *  Copyright (C) 1999 Steve Ratcliffe
+ */
+
+#include <sound/seq_kernel.h>
+
+/*
+ * This structure is used to keep track of the current state on each
+ * channel.  All drivers for hardware that does not understand midi
+ * directly will probably need to use this structure.
+ */
+struct snd_midi_channel {
+	void *private;		/* A back pointer to driver data */
+	int  number;		/* The channel number */
+	int  client;		/* The client associated with this channel */
+	int  port;		/* The port associated with this channel */
+
+	unsigned char midi_mode;	/* GM, GS, XG etc */
+	unsigned int 
+		drum_channel:1,		/* Drum channel */
+		param_type:1		/* RPN/NRPN */
+		;
+
+	unsigned char midi_aftertouch;	/* Aftertouch (key pressure) */
+	unsigned char midi_pressure;	/* Channel pressure */
+	unsigned char midi_program;	/* Instrument number */
+	short midi_pitchbend;		/* Pitch bend amount */
+
+	unsigned char control[128];	/* Current value of all controls */
+	unsigned char note[128];	/* Current status for all notes */
+
+	short gm_rpn_pitch_bend_range;	/* Pitch bend range */
+	short gm_rpn_fine_tuning; 	/* Master fine tuning */
+	short gm_rpn_coarse_tuning;	/* Master coarse tuning */
+
+};
+
+/*
+ * A structure that represets a set of channels bound to a port.  There
+ * would usually be 16 channels per port.  But fewer could be used for
+ * particular cases.
+ * The channel set consists of information describing the client and
+ * port for this midi synth and an array of snd_midi_channel structures.
+ * A driver that had no need for snd_midi_channel could still use the
+ * channel set type if it wished with the channel array null.
+ */
+struct snd_midi_channel_set {
+	void *private_data;		/* Driver data */
+	int  client;			/* Client for this port */
+	int  port;			/* The port number */
+
+	int  max_channels;		/* Size of the channels array */
+	struct snd_midi_channel *channels;
+
+	unsigned char midi_mode;	/* MIDI operating mode */
+	unsigned char gs_master_volume;	/* SYSEX master volume: 0-127 */
+	unsigned char gs_chorus_mode;
+	unsigned char gs_reverb_mode;
+
+};
+
+struct snd_midi_op {
+	void (*note_on)(void *private_data, int note, int vel, struct snd_midi_channel *chan);
+	void (*note_off)(void *private_data,int note, int vel, struct snd_midi_channel *chan); /* release note */
+	void (*key_press)(void *private_data, int note, int vel, struct snd_midi_channel *chan);
+	void (*note_terminate)(void *private_data, int note, struct snd_midi_channel *chan); /* terminate note immediately */
+	void (*control)(void *private_data, int type, struct snd_midi_channel *chan);
+	void (*nrpn)(void *private_data, struct snd_midi_channel *chan,
+		     struct snd_midi_channel_set *chset);
+	void (*sysex)(void *private_data, unsigned char *buf, int len, int parsed,
+		      struct snd_midi_channel_set *chset);
+};
+
+/*
+ * These defines are used so that pitchbend, aftertouch etc, can be
+ * distinguished from controller values.
+ */
+/* 0-127 controller values */
+#define MIDI_CTL_PITCHBEND	0x80
+#define MIDI_CTL_AFTERTOUCH	0x81
+#define MIDI_CTL_CHAN_PRESSURE	0x82
+
+/*
+ * These names exist to allow symbolic access to the controls array.
+ * The usage is eg: chan->gm_bank_select.  Another implementation would
+ * be really have these members in the struct, and not the array.
+ */
+#define gm_bank_select		control[0]
+#define gm_modulation		control[1]
+#define gm_breath		control[2]
+#define gm_foot_pedal		control[4]
+#define gm_portamento_time	control[5]
+#define gm_data_entry		control[6]
+#define gm_volume		control[7]
+#define gm_balance		control[8]
+#define gm_pan			control[10]
+#define gm_expression		control[11]
+#define gm_effect_control1	control[12]
+#define gm_effect_control2	control[13]
+#define gm_slider1		control[16]
+#define gm_slider2		control[17]
+#define gm_slider3		control[18]
+#define gm_slider4		control[19]
+
+#define gm_bank_select_lsb	control[32]
+#define gm_modulation_wheel_lsb	control[33]
+#define gm_breath_lsb		control[34]
+#define gm_foot_pedal_lsb	control[36]
+#define gm_portamento_time_lsb	control[37]
+#define gm_data_entry_lsb	control[38]
+#define gm_volume_lsb		control[39]
+#define gm_balance_lsb		control[40]
+#define gm_pan_lsb		control[42]
+#define gm_expression_lsb	control[43]
+#define gm_effect_control1_lsb	control[44]
+#define gm_effect_control2_lsb	control[45]
+
+#define gm_sustain	 	control[MIDI_CTL_SUSTAIN]
+#define gm_hold			gm_sustain
+#define gm_portamento		control[MIDI_CTL_PORTAMENTO]
+#define gm_sostenuto		control[MIDI_CTL_SOSTENUTO]
+
+/*
+ * These macros give the complete value of the controls that consist
+ * of coarse and fine pairs.  Of course the fine controls are seldom used
+ * but there is no harm in being complete.
+ */
+#define SNDRV_GM_BANK_SELECT(cp)		(((cp)->control[0]<<7)|((cp)->control[32]))
+#define SNDRV_GM_MODULATION_WHEEL(cp)	(((cp)->control[1]<<7)|((cp)->control[33]))
+#define SNDRV_GM_BREATH(cp)		(((cp)->control[2]<<7)|((cp)->control[34]))
+#define SNDRV_GM_FOOT_PEDAL(cp)		(((cp)->control[4]<<7)|((cp)->control[36]))
+#define SNDRV_GM_PORTAMENTO_TIME(cp)	(((cp)->control[5]<<7)|((cp)->control[37]))
+#define SNDRV_GM_DATA_ENTRY(cp)		(((cp)->control[6]<<7)|((cp)->control[38]))
+#define SNDRV_GM_VOLUME(cp)		(((cp)->control[7]<<7)|((cp)->control[39]))
+#define SNDRV_GM_BALANCE(cp)		(((cp)->control[8]<<7)|((cp)->control[40]))
+#define SNDRV_GM_PAN(cp)			(((cp)->control[10]<<7)|((cp)->control[42]))
+#define SNDRV_GM_EXPRESSION(cp)		(((cp)->control[11]<<7)|((cp)->control[43]))
+
+
+/* MIDI mode */
+#define SNDRV_MIDI_MODE_NONE	0	/* Generic midi */
+#define SNDRV_MIDI_MODE_GM	1
+#define SNDRV_MIDI_MODE_GS	2
+#define SNDRV_MIDI_MODE_XG	3
+#define SNDRV_MIDI_MODE_MT32	4
+
+/* MIDI note state */
+#define SNDRV_MIDI_NOTE_OFF		0x00
+#define SNDRV_MIDI_NOTE_ON		0x01
+#define SNDRV_MIDI_NOTE_RELEASED		0x02
+#define SNDRV_MIDI_NOTE_SOSTENUTO		0x04
+ 
+#define SNDRV_MIDI_PARAM_TYPE_REGISTERED		0
+#define SNDRV_MIDI_PARAM_TYPE_NONREGISTERED	1
+
+/* SYSEX parse flag */
+enum {
+	SNDRV_MIDI_SYSEX_NOT_PARSED = 0,
+	SNDRV_MIDI_SYSEX_GM_ON,	
+	SNDRV_MIDI_SYSEX_GS_ON,	
+	SNDRV_MIDI_SYSEX_GS_RESET,	
+	SNDRV_MIDI_SYSEX_GS_CHORUS_MODE,
+	SNDRV_MIDI_SYSEX_GS_REVERB_MODE,
+	SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME,
+	SNDRV_MIDI_SYSEX_GS_PROGRAM,
+	SNDRV_MIDI_SYSEX_GS_DRUM_CHANNEL,
+	SNDRV_MIDI_SYSEX_XG_ON,	
+};
+
+/* Prototypes for midi_process.c */
+void snd_midi_process_event(const struct snd_midi_op *ops,
+			    struct snd_seq_event *ev,
+			    struct snd_midi_channel_set *chanset);
+void snd_midi_channel_set_clear(struct snd_midi_channel_set *chset);
+struct snd_midi_channel_set *snd_midi_channel_alloc_set(int n);
+void snd_midi_channel_free_set(struct snd_midi_channel_set *chset);
+
+#endif /* __SOUND_SEQ_MIDI_EMUL_H */