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/usb/dvb-usb/dvb-usb-dvb.c | 350 ++++++++++++++++++++++++++++++++ 1 file changed, 350 insertions(+) create mode 100644 drivers/media/usb/dvb-usb/dvb-usb-dvb.c (limited to 'drivers/media/usb/dvb-usb/dvb-usb-dvb.c') diff --git a/drivers/media/usb/dvb-usb/dvb-usb-dvb.c b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c new file mode 100644 index 000000000..0a7f8ba90 --- /dev/null +++ b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c @@ -0,0 +1,350 @@ +// SPDX-License-Identifier: GPL-2.0 +/* dvb-usb-dvb.c is part of the DVB USB library. + * + * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de) + * see dvb-usb-init.c for copyright information. + * + * This file contains functions for initializing and handling the + * linux-dvb API. + */ +#include "dvb-usb-common.h" +#include + +/* does the complete input transfer handling */ +static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) +{ + struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; + int newfeedcount, ret; + + if (adap == NULL) + return -ENODEV; + + if ((adap->active_fe < 0) || + (adap->active_fe >= adap->num_frontends_initialized)) { + return -EINVAL; + } + + newfeedcount = adap->feedcount + (onoff ? 1 : -1); + + /* stop feed before setting a new pid if there will be no pid anymore */ + if (newfeedcount == 0) { + deb_ts("stop feeding\n"); + usb_urb_kill(&adap->fe_adap[adap->active_fe].stream); + + if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { + ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0); + if (ret < 0) { + err("error while stopping stream."); + return ret; + } + } + } + + adap->feedcount = newfeedcount; + + /* activate the pid on the device specific pid_filter */ + deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n", + adap->fe_adap[adap->active_fe].pid_filtering ? + "yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid, + dvbdmxfeed->index, onoff ? "on" : "off"); + if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && + adap->fe_adap[adap->active_fe].pid_filtering && + adap->props.fe[adap->active_fe].pid_filter != NULL) + adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff); + + /* start the feed if this was the first feed and there is still a feed + * for reception. + */ + if (adap->feedcount == onoff && adap->feedcount > 0) { + deb_ts("controlling pid parser\n"); + if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && + adap->props.fe[adap->active_fe].caps & + DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF && + adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) { + ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap, + adap->fe_adap[adap->active_fe].pid_filtering); + if (ret < 0) { + err("could not handle pid_parser"); + return ret; + } + } + deb_ts("start feeding\n"); + if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { + ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1); + if (ret < 0) { + err("error while enabling fifo."); + return ret; + } + } + + deb_ts("submitting all URBs\n"); + usb_urb_submit(&adap->fe_adap[adap->active_fe].stream); + } + return 0; +} + +static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, + dvbdmxfeed->type); + return dvb_usb_ctrl_feed(dvbdmxfeed, 1); +} + +static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type); + return dvb_usb_ctrl_feed(dvbdmxfeed, 0); +} + +static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap) +{ +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + struct media_device *mdev; + struct dvb_usb_device *d = adap->dev; + struct usb_device *udev = d->udev; + + mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); + if (!mdev) + return -ENOMEM; + + media_device_usb_init(mdev, udev, d->desc->name); + + dvb_register_media_controller(&adap->dvb_adap, mdev); + + dev_info(&d->udev->dev, "media controller created\n"); +#endif + return 0; +} + +static int dvb_usb_media_device_register(struct dvb_usb_adapter *adap) +{ +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + return media_device_register(adap->dvb_adap.mdev); +#else + return 0; +#endif +} + +static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap) +{ +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + if (!adap->dvb_adap.mdev) + return; + + mutex_lock(&adap->dvb_adap.mdev_lock); + + media_device_unregister(adap->dvb_adap.mdev); + media_device_cleanup(adap->dvb_adap.mdev); + kfree(adap->dvb_adap.mdev); + adap->dvb_adap.mdev = NULL; + + mutex_unlock(&adap->dvb_adap.mdev_lock); +#endif +} + +int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums) +{ + int i; + int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name, + adap->dev->owner, &adap->dev->udev->dev, + adapter_nums); + + if (ret < 0) { + deb_info("dvb_register_adapter failed: error %d", ret); + goto err; + } + adap->dvb_adap.priv = adap; + + ret = dvb_usb_media_device_init(adap); + if (ret < 0) { + deb_info("dvb_usb_media_device_init failed: error %d", ret); + goto err_mc; + } + + if (adap->dev->props.read_mac_address) { + if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0) + info("MAC address: %pM", adap->dvb_adap.proposed_mac); + else + err("MAC address reading failed."); + } + + + adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; + adap->demux.priv = adap; + + adap->demux.filternum = 0; + for (i = 0; i < adap->props.num_frontends; i++) { + if (adap->demux.filternum < adap->fe_adap[i].max_feed_count) + adap->demux.filternum = adap->fe_adap[i].max_feed_count; + } + adap->demux.feednum = adap->demux.filternum; + adap->demux.start_feed = dvb_usb_start_feed; + adap->demux.stop_feed = dvb_usb_stop_feed; + adap->demux.write_to_decoder = NULL; + if ((ret = dvb_dmx_init(&adap->demux)) < 0) { + err("dvb_dmx_init failed: error %d", ret); + goto err_dmx; + } + + adap->dmxdev.filternum = adap->demux.filternum; + adap->dmxdev.demux = &adap->demux.dmx; + adap->dmxdev.capabilities = 0; + if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) { + err("dvb_dmxdev_init failed: error %d", ret); + goto err_dmx_dev; + } + + if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, + &adap->demux.dmx)) < 0) { + err("dvb_net_init failed: error %d", ret); + goto err_net_init; + } + + adap->state |= DVB_USB_ADAP_STATE_DVB; + return 0; + +err_net_init: + dvb_dmxdev_release(&adap->dmxdev); +err_dmx_dev: + dvb_dmx_release(&adap->demux); +err_dmx: + dvb_usb_media_device_unregister(adap); +err_mc: + dvb_unregister_adapter(&adap->dvb_adap); +err: + return ret; +} + +int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap) +{ + if (adap->state & DVB_USB_ADAP_STATE_DVB) { + deb_info("unregistering DVB part\n"); + dvb_net_release(&adap->dvb_net); + adap->demux.dmx.close(&adap->demux.dmx); + dvb_dmxdev_release(&adap->dmxdev); + dvb_dmx_release(&adap->demux); + dvb_usb_media_device_unregister(adap); + dvb_unregister_adapter(&adap->dvb_adap); + adap->state &= ~DVB_USB_ADAP_STATE_DVB; + } + return 0; +} + +static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff) +{ + struct dvb_usb_adapter *adap = fe->dvb->priv; + + int ret = (adap->props.frontend_ctrl) ? + adap->props.frontend_ctrl(fe, onoff) : 0; + + if (ret < 0) { + err("frontend_ctrl request failed"); + return ret; + } + if (onoff) + adap->active_fe = fe->id; + + return 0; +} + +static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) +{ + struct dvb_usb_adapter *adap = fe->dvb->priv; + + dvb_usb_device_power_ctrl(adap->dev, 1); + + dvb_usb_set_active_fe(fe, 1); + + if (adap->fe_adap[fe->id].fe_init) + adap->fe_adap[fe->id].fe_init(fe); + + return 0; +} + +static int dvb_usb_fe_sleep(struct dvb_frontend *fe) +{ + struct dvb_usb_adapter *adap = fe->dvb->priv; + + if (adap->fe_adap[fe->id].fe_sleep) + adap->fe_adap[fe->id].fe_sleep(fe); + + dvb_usb_set_active_fe(fe, 0); + + return dvb_usb_device_power_ctrl(adap->dev, 0); +} + +int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) +{ + int ret, i; + + /* register all given adapter frontends */ + for (i = 0; i < adap->props.num_frontends; i++) { + + if (adap->props.fe[i].frontend_attach == NULL) { + err("strange: '%s' #%d,%d doesn't want to attach a frontend.", + adap->dev->desc->name, adap->id, i); + + return 0; + } + + ret = adap->props.fe[i].frontend_attach(adap); + if (ret || adap->fe_adap[i].fe == NULL) { + /* only print error when there is no FE at all */ + if (i == 0) + err("no frontend was attached by '%s'", + adap->dev->desc->name); + + return 0; + } + + adap->fe_adap[i].fe->id = i; + + /* re-assign sleep and wakeup functions */ + adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init; + adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup; + adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep; + adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep; + + if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) { + err("Frontend %d registration failed.", i); + dvb_frontend_detach(adap->fe_adap[i].fe); + adap->fe_adap[i].fe = NULL; + /* In error case, do not try register more FEs, + * still leaving already registered FEs alive. */ + if (i == 0) + return -ENODEV; + else + return 0; + } + + /* only attach the tuner if the demod is there */ + if (adap->props.fe[i].tuner_attach != NULL) + adap->props.fe[i].tuner_attach(adap); + + adap->num_frontends_initialized++; + } + + ret = dvb_create_media_graph(&adap->dvb_adap, true); + if (ret) + return ret; + + ret = dvb_usb_media_device_register(adap); + + return ret; +} + +int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap) +{ + int i = adap->num_frontends_initialized - 1; + + /* unregister all given adapter frontends */ + for (; i >= 0; i--) { + if (adap->fe_adap[i].fe != NULL) { + dvb_unregister_frontend(adap->fe_adap[i].fe); + dvb_frontend_detach(adap->fe_adap[i].fe); + } + } + adap->num_frontends_initialized = 0; + + return 0; +} -- cgit v1.2.3