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(). ... --- drivers/media/pci/ivtv/ivtv-alsa-main.c | 274 ++++++++++++++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100644 drivers/media/pci/ivtv/ivtv-alsa-main.c (limited to 'drivers/media/pci/ivtv/ivtv-alsa-main.c') diff --git a/drivers/media/pci/ivtv/ivtv-alsa-main.c b/drivers/media/pci/ivtv/ivtv-alsa-main.c new file mode 100644 index 000000000..9e13a7128 --- /dev/null +++ b/drivers/media/pci/ivtv/ivtv-alsa-main.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * ALSA interface to ivtv PCM capture streams + * + * Copyright (C) 2009,2012 Andy Walls + * Copyright (C) 2009 Devin Heitmueller + * + * Portions of this work were sponsored by ONELAN Limited for the cx18 driver + */ + +#include "ivtv-driver.h" +#include "ivtv-version.h" +#include "ivtv-alsa.h" +#include "ivtv-alsa-pcm.h" + +#include +#include + +int ivtv_alsa_debug; +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; + +#define IVTV_DEBUG_ALSA_INFO(__fmt, __arg...) \ + do { \ + if (ivtv_alsa_debug & 2) \ + printk(KERN_INFO pr_fmt("%s: alsa:" __fmt), \ + __func__, ##__arg); \ + } while (0) + +module_param_named(debug, ivtv_alsa_debug, int, 0644); +MODULE_PARM_DESC(debug, + "Debug level (bitmask). Default: 0\n" + "\t\t\t 1/0x0001: warning\n" + "\t\t\t 2/0x0002: info\n"); + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, + "Index value for IVTV ALSA capture interface(s).\n"); + +MODULE_AUTHOR("Andy Walls"); +MODULE_DESCRIPTION("CX23415/CX23416 ALSA Interface"); +MODULE_LICENSE("GPL"); + +MODULE_VERSION(IVTV_VERSION); + +static inline +struct snd_ivtv_card *to_snd_ivtv_card(struct v4l2_device *v4l2_dev) +{ + return to_ivtv(v4l2_dev)->alsa; +} + +static void snd_ivtv_card_free(struct snd_ivtv_card *itvsc) +{ + if (itvsc == NULL) + return; + + if (itvsc->v4l2_dev != NULL) + to_ivtv(itvsc->v4l2_dev)->alsa = NULL; + + /* FIXME - take any other stopping actions needed */ + + kfree(itvsc); +} + +static void snd_ivtv_card_private_free(struct snd_card *sc) +{ + if (sc == NULL) + return; + snd_ivtv_card_free(sc->private_data); + sc->private_data = NULL; + sc->private_free = NULL; +} + +static int snd_ivtv_card_create(struct v4l2_device *v4l2_dev, + struct snd_card *sc, + struct snd_ivtv_card **itvsc) +{ + *itvsc = kzalloc(sizeof(struct snd_ivtv_card), GFP_KERNEL); + if (*itvsc == NULL) + return -ENOMEM; + + (*itvsc)->v4l2_dev = v4l2_dev; + (*itvsc)->sc = sc; + + sc->private_data = *itvsc; + sc->private_free = snd_ivtv_card_private_free; + + return 0; +} + +static int snd_ivtv_card_set_names(struct snd_ivtv_card *itvsc) +{ + struct ivtv *itv = to_ivtv(itvsc->v4l2_dev); + struct snd_card *sc = itvsc->sc; + + /* sc->driver is used by alsa-lib's configurator: simple, unique */ + strscpy(sc->driver, "CX2341[56]", sizeof(sc->driver)); + + /* sc->shortname is a symlink in /proc/asound: IVTV-M -> cardN */ + snprintf(sc->shortname, sizeof(sc->shortname), "IVTV-%d", + itv->instance); + + /* sc->longname is read from /proc/asound/cards */ + snprintf(sc->longname, sizeof(sc->longname), + "CX2341[56] #%d %s TV/FM Radio/Line-In Capture", + itv->instance, itv->card_name); + + return 0; +} + +static int snd_ivtv_init(struct v4l2_device *v4l2_dev) +{ + struct ivtv *itv = to_ivtv(v4l2_dev); + struct snd_card *sc = NULL; + struct snd_ivtv_card *itvsc; + int ret, idx; + + /* Numbrs steps from "Writing an ALSA Driver" by Takashi Iwai */ + + /* (1) Check and increment the device index */ + /* This is a no-op for us. We'll use the itv->instance */ + + /* (2) Create a card instance */ + /* use first available id if not specified otherwise*/ + idx = index[itv->instance] == -1 ? SNDRV_DEFAULT_IDX1 : index[itv->instance]; + ret = snd_card_new(&itv->pdev->dev, + idx, + SNDRV_DEFAULT_STR1, /* xid from end of shortname*/ + THIS_MODULE, 0, &sc); + if (ret) { + IVTV_ALSA_ERR("%s: snd_card_new() failed with err %d\n", + __func__, ret); + goto err_exit; + } + + /* (3) Create a main component */ + ret = snd_ivtv_card_create(v4l2_dev, sc, &itvsc); + if (ret) { + IVTV_ALSA_ERR("%s: snd_ivtv_card_create() failed with err %d\n", + __func__, ret); + goto err_exit_free; + } + + /* (4) Set the driver ID and name strings */ + snd_ivtv_card_set_names(itvsc); + + /* (5) Create other components: PCM, & proc files */ + ret = snd_ivtv_pcm_create(itvsc); + if (ret) { + IVTV_ALSA_ERR("%s: snd_ivtv_pcm_create() failed with err %d\n", + __func__, ret); + goto err_exit_free; + } + /* FIXME - proc files */ + + /* (7) Set the driver data and return 0 */ + /* We do this out of normal order for PCI drivers to avoid races */ + itv->alsa = itvsc; + + /* (6) Register the card instance */ + ret = snd_card_register(sc); + if (ret) { + itv->alsa = NULL; + IVTV_ALSA_ERR("%s: snd_card_register() failed with err %d\n", + __func__, ret); + goto err_exit_free; + } + + IVTV_ALSA_INFO("%s: Instance %d registered as ALSA card %d\n", + __func__, itv->instance, sc->number); + + return 0; + +err_exit_free: + if (sc != NULL) + snd_card_free(sc); + kfree(itvsc); +err_exit: + return ret; +} + +static int ivtv_alsa_load(struct ivtv *itv) +{ + struct v4l2_device *v4l2_dev = &itv->v4l2_dev; + struct ivtv_stream *s; + + if (v4l2_dev == NULL) { + pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n", + __func__); + return 0; + } + + itv = to_ivtv(v4l2_dev); + if (itv == NULL) { + pr_err("ivtv-alsa itv is NULL\n"); + return 0; + } + + s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM]; + if (s->vdev.v4l2_dev == NULL) { + IVTV_DEBUG_ALSA_INFO("PCM stream for card is disabled - skipping\n"); + return 0; + } + + if (itv->alsa != NULL) { + IVTV_ALSA_ERR("%s: struct snd_ivtv_card * already exists\n", + __func__); + return 0; + } + + if (snd_ivtv_init(v4l2_dev)) { + IVTV_ALSA_ERR("%s: failed to create struct snd_ivtv_card\n", + __func__); + } else { + IVTV_DEBUG_ALSA_INFO("created ivtv ALSA interface instance\n"); + } + return 0; +} + +static int __init ivtv_alsa_init(void) +{ + pr_info("ivtv-alsa: module loading...\n"); + ivtv_ext_init = &ivtv_alsa_load; + return 0; +} + +static void __exit snd_ivtv_exit(struct snd_ivtv_card *itvsc) +{ + struct ivtv *itv = to_ivtv(itvsc->v4l2_dev); + + /* FIXME - pointer checks & shutdown itvsc */ + + snd_card_free(itvsc->sc); + itv->alsa = NULL; +} + +static int __exit ivtv_alsa_exit_callback(struct device *dev, void *data) +{ + struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); + struct snd_ivtv_card *itvsc; + + if (v4l2_dev == NULL) { + pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n", + __func__); + return 0; + } + + itvsc = to_snd_ivtv_card(v4l2_dev); + if (itvsc == NULL) { + IVTV_ALSA_WARN("%s: struct snd_ivtv_card * is NULL\n", + __func__); + return 0; + } + + snd_ivtv_exit(itvsc); + return 0; +} + +static void __exit ivtv_alsa_exit(void) +{ + struct device_driver *drv; + int ret; + + pr_info("ivtv-alsa: module unloading...\n"); + + drv = driver_find("ivtv", &pci_bus_type); + ret = driver_for_each_device(drv, NULL, NULL, ivtv_alsa_exit_callback); + (void)ret; /* suppress compiler warning */ + + ivtv_ext_init = NULL; + pr_info("ivtv-alsa: module unload complete\n"); +} + +module_init(ivtv_alsa_init); +module_exit(ivtv_alsa_exit); -- cgit v1.2.3