From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- include/sound/control.h | 294 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 294 insertions(+) create mode 100644 include/sound/control.h (limited to 'include/sound/control.h') diff --git a/include/sound/control.h b/include/sound/control.h new file mode 100644 index 000000000..cc3dcc6cf --- /dev/null +++ b/include/sound/control.h @@ -0,0 +1,294 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __SOUND_CONTROL_H +#define __SOUND_CONTROL_H + +/* + * Header file for control interface + * Copyright (c) by Jaroslav Kysela + */ + +#include +#include +#include + +#define snd_kcontrol_chip(kcontrol) ((kcontrol)->private_data) + +struct snd_kcontrol; +typedef int (snd_kcontrol_info_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_info * uinfo); +typedef int (snd_kcontrol_get_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol); +typedef int (snd_kcontrol_put_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol); +typedef int (snd_kcontrol_tlv_rw_t)(struct snd_kcontrol *kcontrol, + int op_flag, /* SNDRV_CTL_TLV_OP_XXX */ + unsigned int size, + unsigned int __user *tlv); + +/* internal flag for skipping validations */ +#ifdef CONFIG_SND_CTL_DEBUG +#define SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK (1 << 24) +#define snd_ctl_skip_validation(info) \ + ((info)->access & SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK) +#else +#define SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK 0 +#define snd_ctl_skip_validation(info) true +#endif + +/* kernel only - LED bits */ +#define SNDRV_CTL_ELEM_ACCESS_LED_SHIFT 25 +#define SNDRV_CTL_ELEM_ACCESS_LED_MASK (7<<25) /* kernel three bits - LED group */ +#define SNDRV_CTL_ELEM_ACCESS_SPK_LED (1<<25) /* kernel speaker (output) LED flag */ +#define SNDRV_CTL_ELEM_ACCESS_MIC_LED (2<<25) /* kernel microphone (input) LED flag */ + +enum { + SNDRV_CTL_TLV_OP_READ = 0, + SNDRV_CTL_TLV_OP_WRITE = 1, + SNDRV_CTL_TLV_OP_CMD = -1, +}; + +struct snd_kcontrol_new { + snd_ctl_elem_iface_t iface; /* interface identifier */ + unsigned int device; /* device/client number */ + unsigned int subdevice; /* subdevice (substream) number */ + const char *name; /* ASCII name of item */ + unsigned int index; /* index of item */ + unsigned int access; /* access rights */ + unsigned int count; /* count of same elements */ + snd_kcontrol_info_t *info; + snd_kcontrol_get_t *get; + snd_kcontrol_put_t *put; + union { + snd_kcontrol_tlv_rw_t *c; + const unsigned int *p; + } tlv; + unsigned long private_value; +}; + +struct snd_kcontrol_volatile { + struct snd_ctl_file *owner; /* locked */ + unsigned int access; /* access rights */ +}; + +struct snd_kcontrol { + struct list_head list; /* list of controls */ + struct snd_ctl_elem_id id; + unsigned int count; /* count of same elements */ + snd_kcontrol_info_t *info; + snd_kcontrol_get_t *get; + snd_kcontrol_put_t *put; + union { + snd_kcontrol_tlv_rw_t *c; + const unsigned int *p; + } tlv; + unsigned long private_value; + void *private_data; + void (*private_free)(struct snd_kcontrol *kcontrol); + struct snd_kcontrol_volatile vd[]; /* volatile data */ +}; + +#define snd_kcontrol(n) list_entry(n, struct snd_kcontrol, list) + +struct snd_kctl_event { + struct list_head list; /* list of events */ + struct snd_ctl_elem_id id; + unsigned int mask; +}; + +#define snd_kctl_event(n) list_entry(n, struct snd_kctl_event, list) + +struct pid; + +enum { + SND_CTL_SUBDEV_PCM, + SND_CTL_SUBDEV_RAWMIDI, + SND_CTL_SUBDEV_ITEMS, +}; + +struct snd_ctl_file { + struct list_head list; /* list of all control files */ + struct snd_card *card; + struct pid *pid; + int preferred_subdevice[SND_CTL_SUBDEV_ITEMS]; + wait_queue_head_t change_sleep; + spinlock_t read_lock; + struct snd_fasync *fasync; + int subscribed; /* read interface is activated */ + struct list_head events; /* waiting events for read */ +}; + +struct snd_ctl_layer_ops { + struct snd_ctl_layer_ops *next; + const char *module_name; + void (*lregister)(struct snd_card *card); + void (*ldisconnect)(struct snd_card *card); + void (*lnotify)(struct snd_card *card, unsigned int mask, struct snd_kcontrol *kctl, unsigned int ioff); +}; + +#define snd_ctl_file(n) list_entry(n, struct snd_ctl_file, list) + +typedef int (*snd_kctl_ioctl_func_t) (struct snd_card * card, + struct snd_ctl_file * control, + unsigned int cmd, unsigned long arg); + +void snd_ctl_notify(struct snd_card * card, unsigned int mask, struct snd_ctl_elem_id * id); +void snd_ctl_notify_one(struct snd_card * card, unsigned int mask, struct snd_kcontrol * kctl, unsigned int ioff); + +struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new * kcontrolnew, void * private_data); +void snd_ctl_free_one(struct snd_kcontrol * kcontrol); +int snd_ctl_add(struct snd_card * card, struct snd_kcontrol * kcontrol); +int snd_ctl_remove(struct snd_card * card, struct snd_kcontrol * kcontrol); +int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol, bool add_on_replace); +int snd_ctl_remove_id(struct snd_card * card, struct snd_ctl_elem_id *id); +int snd_ctl_rename_id(struct snd_card * card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id); +void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl, const char *name); +int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id, int active); +struct snd_kcontrol *snd_ctl_find_numid(struct snd_card * card, unsigned int numid); +struct snd_kcontrol *snd_ctl_find_id(struct snd_card * card, struct snd_ctl_elem_id *id); + +int snd_ctl_create(struct snd_card *card); + +int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn); +int snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn); +#ifdef CONFIG_COMPAT +int snd_ctl_register_ioctl_compat(snd_kctl_ioctl_func_t fcn); +int snd_ctl_unregister_ioctl_compat(snd_kctl_ioctl_func_t fcn); +#else +#define snd_ctl_register_ioctl_compat(fcn) +#define snd_ctl_unregister_ioctl_compat(fcn) +#endif + +int snd_ctl_request_layer(const char *module_name); +void snd_ctl_register_layer(struct snd_ctl_layer_ops *lops); +void snd_ctl_disconnect_layer(struct snd_ctl_layer_ops *lops); + +int snd_ctl_get_preferred_subdevice(struct snd_card *card, int type); + +static inline unsigned int snd_ctl_get_ioffnum(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id) +{ + unsigned int ioff = id->numid - kctl->id.numid; + return array_index_nospec(ioff, kctl->count); +} + +static inline unsigned int snd_ctl_get_ioffidx(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id) +{ + unsigned int ioff = id->index - kctl->id.index; + return array_index_nospec(ioff, kctl->count); +} + +static inline unsigned int snd_ctl_get_ioff(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id) +{ + if (id->numid) { + return snd_ctl_get_ioffnum(kctl, id); + } else { + return snd_ctl_get_ioffidx(kctl, id); + } +} + +static inline struct snd_ctl_elem_id *snd_ctl_build_ioff(struct snd_ctl_elem_id *dst_id, + struct snd_kcontrol *src_kctl, + unsigned int offset) +{ + *dst_id = src_kctl->id; + dst_id->index += offset; + dst_id->numid += offset; + return dst_id; +} + +/* + * Frequently used control callbacks/helpers + */ +int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels, + unsigned int items, const char *const names[]); + +/* + * virtual master control + */ +struct snd_kcontrol *snd_ctl_make_virtual_master(char *name, + const unsigned int *tlv); +int _snd_ctl_add_follower(struct snd_kcontrol *master, + struct snd_kcontrol *follower, + unsigned int flags); +/* optional flags for follower */ +#define SND_CTL_FOLLOWER_NEED_UPDATE (1 << 0) + +/** + * snd_ctl_add_follower - Add a virtual follower control + * @master: vmaster element + * @follower: follower element to add + * + * Add a virtual follower control to the given master element created via + * snd_ctl_create_virtual_master() beforehand. + * + * All followers must be the same type (returning the same information + * via info callback). The function doesn't check it, so it's your + * responsibility. + * + * Also, some additional limitations: + * at most two channels, + * logarithmic volume control (dB level) thus no linear volume, + * master can only attenuate the volume without gain + * + * Return: Zero if successful or a negative error code. + */ +static inline int +snd_ctl_add_follower(struct snd_kcontrol *master, struct snd_kcontrol *follower) +{ + return _snd_ctl_add_follower(master, follower, 0); +} + +/** + * snd_ctl_add_follower_uncached - Add a virtual follower control + * @master: vmaster element + * @follower: follower element to add + * + * Add a virtual follower control to the given master. + * Unlike snd_ctl_add_follower(), the element added via this function + * is supposed to have volatile values, and get callback is called + * at each time queried from the master. + * + * When the control peeks the hardware values directly and the value + * can be changed by other means than the put callback of the element, + * this function should be used to keep the value always up-to-date. + * + * Return: Zero if successful or a negative error code. + */ +static inline int +snd_ctl_add_follower_uncached(struct snd_kcontrol *master, + struct snd_kcontrol *follower) +{ + return _snd_ctl_add_follower(master, follower, SND_CTL_FOLLOWER_NEED_UPDATE); +} + +int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl, + void (*hook)(void *private_data, int), + void *private_data); +void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); +#define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true) +int snd_ctl_apply_vmaster_followers(struct snd_kcontrol *kctl, + int (*func)(struct snd_kcontrol *vfollower, + struct snd_kcontrol *follower, + void *arg), + void *arg); + +/* + * Control LED trigger layer + */ +#define SND_CTL_LAYER_MODULE_LED "snd-ctl-led" + +#if IS_MODULE(CONFIG_SND_CTL_LED) +static inline int snd_ctl_led_request(void) { return snd_ctl_request_layer(SND_CTL_LAYER_MODULE_LED); } +#else +static inline int snd_ctl_led_request(void) { return 0; } +#endif + +/* + * Helper functions for jack-detection controls + */ +struct snd_kcontrol * +snd_kctl_jack_new(const char *name, struct snd_card *card); +void snd_kctl_jack_report(struct snd_card *card, + struct snd_kcontrol *kctl, bool status); + +#endif /* __SOUND_CONTROL_H */ -- cgit v1.2.3