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/net/wireless/ath/ath9k/htc_drv_gpio.c | 334 ++++++++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/htc_drv_gpio.c (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_gpio.c') diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c new file mode 100644 index 000000000..ecb848b60 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c @@ -0,0 +1,334 @@ +/* + * Copyright (c) 2010-2011 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "htc.h" + +/******************/ +/* BTCOEX */ +/******************/ + +#define ATH_HTC_BTCOEX_PRODUCT_ID "wb193" + +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT + +/* + * Detects if there is any priority bt traffic + */ +static void ath_detect_bt_priority(struct ath9k_htc_priv *priv) +{ + struct ath_btcoex *btcoex = &priv->btcoex; + struct ath_hw *ah = priv->ah; + + if (ath9k_hw_gpio_get(ah, ah->btcoex_hw.btpriority_gpio)) + btcoex->bt_priority_cnt++; + + if (time_after(jiffies, btcoex->bt_priority_time + + msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { + clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + clear_bit(OP_BT_SCAN, &priv->op_flags); + /* Detect if colocated bt started scanning */ + if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { + ath_dbg(ath9k_hw_common(ah), BTCOEX, + "BT scan detected\n"); + set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + set_bit(OP_BT_SCAN, &priv->op_flags); + } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { + ath_dbg(ath9k_hw_common(ah), BTCOEX, + "BT priority traffic detected\n"); + set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + } + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + } +} + +/* + * This is the master bt coex work which runs for every + * 45ms, bt traffic will be given priority during 55% of this + * period while wlan gets remaining 45% + */ +static void ath_btcoex_period_work(struct work_struct *work) +{ + struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv, + coex_period_work.work); + struct ath_btcoex *btcoex = &priv->btcoex; + struct ath_common *common = ath9k_hw_common(priv->ah); + u32 timer_period; + int ret; + + ath_detect_bt_priority(priv); + + ret = ath9k_htc_update_cap_target(priv, + test_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags)); + if (ret) { + ath_err(common, "Unable to set BTCOEX parameters\n"); + return; + } + + ath9k_hw_btcoex_bt_stomp(priv->ah, test_bit(OP_BT_SCAN, &priv->op_flags) ? + ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type); + + ath9k_hw_btcoex_enable(priv->ah); + timer_period = test_bit(OP_BT_SCAN, &priv->op_flags) ? + btcoex->btscan_no_stomp : btcoex->btcoex_no_stomp; + ieee80211_queue_delayed_work(priv->hw, &priv->duty_cycle_work, + msecs_to_jiffies(timer_period)); + ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work, + msecs_to_jiffies(btcoex->btcoex_period)); +} + +/* + * Work to time slice between wlan and bt traffic and + * configure weight registers + */ +static void ath_btcoex_duty_cycle_work(struct work_struct *work) +{ + struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv, + duty_cycle_work.work); + struct ath_hw *ah = priv->ah; + struct ath_btcoex *btcoex = &priv->btcoex; + struct ath_common *common = ath9k_hw_common(ah); + + ath_dbg(common, BTCOEX, "time slice work for bt and wlan\n"); + + if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || + test_bit(OP_BT_SCAN, &priv->op_flags)) + ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); + else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) + ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + + ath9k_hw_btcoex_enable(priv->ah); +} + +static void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv) +{ + struct ath_btcoex *btcoex = &priv->btcoex; + + btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD; + btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + INIT_DELAYED_WORK(&priv->coex_period_work, ath_btcoex_period_work); + INIT_DELAYED_WORK(&priv->duty_cycle_work, ath_btcoex_duty_cycle_work); +} + +/* + * (Re)start btcoex work + */ + +static void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv) +{ + struct ath_btcoex *btcoex = &priv->btcoex; + struct ath_hw *ah = priv->ah; + + ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex work\n"); + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + clear_bit(OP_BT_SCAN, &priv->op_flags); + ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work, 0); +} + + +/* + * Cancel btcoex and bt duty cycle work. + */ +static void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv) +{ + cancel_delayed_work_sync(&priv->coex_period_work); + cancel_delayed_work_sync(&priv->duty_cycle_work); +} + +void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv) +{ + struct ath_hw *ah = priv->ah; + + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) { + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT, 0); + ath9k_hw_btcoex_enable(ah); + ath_htc_resume_btcoex_work(priv); + } +} + +void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv) +{ + struct ath_hw *ah = priv->ah; + + if (ah->btcoex_hw.enabled && + ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) { + if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) + ath_htc_cancel_btcoex_work(priv); + ath9k_hw_btcoex_disable(ah); + } +} + +void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product) +{ + struct ath_hw *ah = priv->ah; + struct ath_common *common = ath9k_hw_common(ah); + int qnum; + + /* + * Check if BTCOEX is globally disabled. + */ + if (!common->btcoex_enabled) { + ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_NONE; + return; + } + + if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) { + ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE; + } + + switch (ath9k_hw_get_btcoex_scheme(priv->ah)) { + case ATH_BTCOEX_CFG_NONE: + break; + case ATH_BTCOEX_CFG_3WIRE: + priv->ah->btcoex_hw.btactive_gpio = 7; + priv->ah->btcoex_hw.btpriority_gpio = 6; + priv->ah->btcoex_hw.wlanactive_gpio = 8; + priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + ath9k_hw_btcoex_init_3wire(priv->ah); + ath_htc_init_btcoex_work(priv); + qnum = priv->hwq_map[IEEE80211_AC_BE]; + ath9k_hw_init_btcoex_hw(priv->ah, qnum); + break; + default: + WARN_ON(1); + break; + } +} + +#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ + +/*******/ +/* LED */ +/*******/ + +#ifdef CONFIG_MAC80211_LEDS +void ath9k_led_work(struct work_struct *work) +{ + struct ath9k_htc_priv *priv = container_of(work, + struct ath9k_htc_priv, + led_work); + + ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, + (priv->brightness == LED_OFF)); +} + +static void ath9k_led_brightness(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct ath9k_htc_priv *priv = container_of(led_cdev, + struct ath9k_htc_priv, + led_cdev); + + /* Not locked, but it's just a tiny green light..*/ + priv->brightness = brightness; + ieee80211_queue_work(priv->hw, &priv->led_work); +} + +void ath9k_deinit_leds(struct ath9k_htc_priv *priv) +{ + if (!priv->led_registered) + return; + + ath9k_led_brightness(&priv->led_cdev, LED_OFF); + led_classdev_unregister(&priv->led_cdev); + cancel_work_sync(&priv->led_work); + + ath9k_hw_gpio_free(priv->ah, priv->ah->led_pin); +} + + +void ath9k_configure_leds(struct ath9k_htc_priv *priv) +{ + /* Configure gpio 1 for output */ + ath9k_hw_gpio_request_out(priv->ah, priv->ah->led_pin, + "ath9k-led", + AR_GPIO_OUTPUT_MUX_AS_OUTPUT); + /* LED off, active low */ + ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1); +} + +void ath9k_init_leds(struct ath9k_htc_priv *priv) +{ + int ret; + + if (AR_SREV_9287(priv->ah)) + priv->ah->led_pin = ATH_LED_PIN_9287; + else if (AR_SREV_9271(priv->ah)) + priv->ah->led_pin = ATH_LED_PIN_9271; + else if (AR_DEVID_7010(priv->ah)) + priv->ah->led_pin = ATH_LED_PIN_7010; + else + priv->ah->led_pin = ATH_LED_PIN_DEF; + + if (!ath9k_htc_led_blink) + priv->led_cdev.default_trigger = + ieee80211_get_radio_led_name(priv->hw); + + ath9k_configure_leds(priv); + + snprintf(priv->led_name, sizeof(priv->led_name), + "ath9k_htc-%s", wiphy_name(priv->hw->wiphy)); + priv->led_cdev.name = priv->led_name; + priv->led_cdev.brightness_set = ath9k_led_brightness; + + ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &priv->led_cdev); + if (ret < 0) + return; + + INIT_WORK(&priv->led_work, ath9k_led_work); + priv->led_registered = true; + + return; +} +#endif + +/*******************/ +/* Rfkill */ +/*******************/ + +static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv) +{ + bool is_blocked; + + ath9k_htc_ps_wakeup(priv); + is_blocked = ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) == + priv->ah->rfkill_polarity; + ath9k_htc_ps_restore(priv); + + return is_blocked; +} + +void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw) +{ + struct ath9k_htc_priv *priv = hw->priv; + bool blocked = !!ath_is_rfkill_set(priv); + + wiphy_rfkill_set_hw_state(hw->wiphy, blocked); +} + +void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv) +{ + if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + wiphy_rfkill_start_polling(priv->hw->wiphy); +} -- cgit v1.2.3