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/mediatek/mt76/mt7921/sdio.c | 342 +++++++++++++++++++++++ 1 file changed, 342 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/sdio.c (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/sdio.c') diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c new file mode 100644 index 000000000..8ce4252b8 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c @@ -0,0 +1,342 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2021 MediaTek Inc. + * + */ + +#include +#include +#include + +#include +#include +#include + +#include "mt7921.h" +#include "../sdio.h" +#include "mac.h" +#include "mcu.h" + +static const struct sdio_device_id mt7921s_table[] = { + { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7901), + .driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM }, + { } /* Terminating entry */ +}; + +static void mt7921s_txrx_worker(struct mt76_worker *w) +{ + struct mt76_sdio *sdio = container_of(w, struct mt76_sdio, + txrx_worker); + struct mt76_dev *mdev = container_of(sdio, struct mt76_dev, sdio); + struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); + + if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { + queue_work(mdev->wq, &dev->pm.wake_work); + return; + } + + mt76s_txrx_worker(sdio); + mt76_connac_pm_unref(&dev->mphy, &dev->pm); +} + +static void mt7921s_unregister_device(struct mt7921_dev *dev) +{ + struct mt76_connac_pm *pm = &dev->pm; + + cancel_work_sync(&dev->init_work); + mt76_unregister_device(&dev->mt76); + cancel_delayed_work_sync(&pm->ps_work); + cancel_work_sync(&pm->wake_work); + + mt76s_deinit(&dev->mt76); + mt7921s_wfsys_reset(dev); + skb_queue_purge(&dev->mt76.mcu.res_q); + + mt76_free_device(&dev->mt76); +} + +static int mt7921s_parse_intr(struct mt76_dev *dev, struct mt76s_intr *intr) +{ + struct mt76_sdio *sdio = &dev->sdio; + struct mt7921_sdio_intr *irq_data = sdio->intr_data; + int i, err; + + sdio_claim_host(sdio->func); + err = sdio_readsb(sdio->func, irq_data, MCR_WHISR, sizeof(*irq_data)); + sdio_release_host(sdio->func); + + if (err < 0) + return err; + + if (irq_data->rx.num[0] > 16 || + irq_data->rx.num[1] > 128) + return -EINVAL; + + intr->isr = irq_data->isr; + intr->rec_mb = irq_data->rec_mb; + intr->tx.wtqcr = irq_data->tx.wtqcr; + intr->rx.num = irq_data->rx.num; + for (i = 0; i < 2 ; i++) { + if (!i) + intr->rx.len[0] = irq_data->rx.len0; + else + intr->rx.len[1] = irq_data->rx.len1; + } + + return 0; +} + +static int mt7921s_probe(struct sdio_func *func, + const struct sdio_device_id *id) +{ + static const struct mt76_driver_ops drv_ops = { + .txwi_size = MT_SDIO_TXD_SIZE, + .drv_flags = MT_DRV_AMSDU_OFFLOAD, + .survey_flags = SURVEY_INFO_TIME_TX | + SURVEY_INFO_TIME_RX | + SURVEY_INFO_TIME_BSS_RX, + .tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb, + .tx_complete_skb = mt7921_usb_sdio_tx_complete_skb, + .tx_status_data = mt7921_usb_sdio_tx_status_data, + .rx_skb = mt7921_queue_rx_skb, + .rx_check = mt7921_rx_check, + .sta_ps = mt7921_sta_ps, + .sta_add = mt7921_mac_sta_add, + .sta_assoc = mt7921_mac_sta_assoc, + .sta_remove = mt7921_mac_sta_remove, + .update_survey = mt7921_update_channel, + }; + static const struct mt76_bus_ops mt7921s_ops = { + .rr = mt76s_rr, + .rmw = mt76s_rmw, + .wr = mt76s_wr, + .write_copy = mt76s_write_copy, + .read_copy = mt76s_read_copy, + .wr_rp = mt76s_wr_rp, + .rd_rp = mt76s_rd_rp, + .type = MT76_BUS_SDIO, + }; + static const struct mt7921_hif_ops mt7921_sdio_ops = { + .init_reset = mt7921s_init_reset, + .reset = mt7921s_mac_reset, + .mcu_init = mt7921s_mcu_init, + .drv_own = mt7921s_mcu_drv_pmctrl, + .fw_own = mt7921s_mcu_fw_pmctrl, + }; + + struct ieee80211_ops *ops; + struct mt7921_dev *dev; + struct mt76_dev *mdev; + u8 features; + int ret; + + features = mt7921_check_offload_capability(&func->dev, (const char *) + id->driver_data); + + ops = devm_kmemdup(&func->dev, &mt7921_ops, sizeof(mt7921_ops), + GFP_KERNEL); + if (!ops) + return -ENOMEM; + + if (!(features & MT7921_FW_CAP_CNM)) { + ops->remain_on_channel = NULL; + ops->cancel_remain_on_channel = NULL; + ops->add_chanctx = NULL; + ops->remove_chanctx = NULL; + ops->change_chanctx = NULL; + ops->assign_vif_chanctx = NULL; + ops->unassign_vif_chanctx = NULL; + ops->mgd_prepare_tx = NULL; + ops->mgd_complete_tx = NULL; + } + + mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops); + if (!mdev) + return -ENOMEM; + + dev = container_of(mdev, struct mt7921_dev, mt76); + dev->fw_features = features; + dev->hif_ops = &mt7921_sdio_ops; + sdio_set_drvdata(func, dev); + + ret = mt76s_init(mdev, func, &mt7921s_ops); + if (ret < 0) + goto error; + + ret = mt76s_hw_init(mdev, func, MT76_CONNAC2_SDIO); + if (ret) + goto error; + + mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | + (mt76_rr(dev, MT_HW_REV) & 0xff); + dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); + + mdev->sdio.parse_irq = mt7921s_parse_intr; + mdev->sdio.intr_data = devm_kmalloc(mdev->dev, + sizeof(struct mt7921_sdio_intr), + GFP_KERNEL); + if (!mdev->sdio.intr_data) { + ret = -ENOMEM; + goto error; + } + + ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN); + if (ret) + goto error; + + ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MCU); + if (ret) + goto error; + + ret = mt76s_alloc_tx(mdev); + if (ret) + goto error; + + ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker, + mt7921s_txrx_worker, "sdio-txrx"); + if (ret) + goto error; + + sched_set_fifo_low(mdev->sdio.txrx_worker.task); + + ret = mt7921_register_device(dev); + if (ret) + goto error; + + return 0; + +error: + mt76s_deinit(&dev->mt76); + mt76_free_device(&dev->mt76); + + return ret; +} + +static void mt7921s_remove(struct sdio_func *func) +{ + struct mt7921_dev *dev = sdio_get_drvdata(func); + + mt7921s_unregister_device(dev); +} + +static int mt7921s_suspend(struct device *__dev) +{ + struct sdio_func *func = dev_to_sdio_func(__dev); + struct mt7921_dev *dev = sdio_get_drvdata(func); + struct mt76_connac_pm *pm = &dev->pm; + struct mt76_dev *mdev = &dev->mt76; + int err; + + pm->suspended = true; + set_bit(MT76_STATE_SUSPEND, &mdev->phy.state); + + flush_work(&dev->reset_work); + cancel_delayed_work_sync(&pm->ps_work); + cancel_work_sync(&pm->wake_work); + + err = mt7921_mcu_drv_pmctrl(dev); + if (err < 0) + goto restore_suspend; + + /* always enable deep sleep during suspend to reduce + * power consumption + */ + mt76_connac_mcu_set_deep_sleep(mdev, true); + + mt76_txq_schedule_all(&dev->mphy); + mt76_worker_disable(&mdev->tx_worker); + mt76_worker_disable(&mdev->sdio.status_worker); + cancel_work_sync(&mdev->sdio.stat_work); + clear_bit(MT76_READING_STATS, &dev->mphy.state); + mt76_tx_status_check(mdev, true); + + mt76_worker_schedule(&mdev->sdio.txrx_worker); + wait_event_timeout(dev->mt76.sdio.wait, + mt76s_txqs_empty(&dev->mt76), 5 * HZ); + + /* It is supposed that SDIO bus is idle at the point */ + err = mt76_connac_mcu_set_hif_suspend(mdev, true); + if (err) + goto restore_worker; + + mt76_worker_disable(&mdev->sdio.txrx_worker); + mt76_worker_disable(&mdev->sdio.net_worker); + + err = mt7921_mcu_fw_pmctrl(dev); + if (err) + goto restore_txrx_worker; + + sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + + return 0; + +restore_txrx_worker: + mt76_worker_enable(&mdev->sdio.net_worker); + mt76_worker_enable(&mdev->sdio.txrx_worker); + mt76_connac_mcu_set_hif_suspend(mdev, false); + +restore_worker: + mt76_worker_enable(&mdev->tx_worker); + mt76_worker_enable(&mdev->sdio.status_worker); + + if (!pm->ds_enable) + mt76_connac_mcu_set_deep_sleep(mdev, false); + +restore_suspend: + clear_bit(MT76_STATE_SUSPEND, &mdev->phy.state); + pm->suspended = false; + + if (err < 0) + mt7921_reset(&dev->mt76); + + return err; +} + +static int mt7921s_resume(struct device *__dev) +{ + struct sdio_func *func = dev_to_sdio_func(__dev); + struct mt7921_dev *dev = sdio_get_drvdata(func); + struct mt76_connac_pm *pm = &dev->pm; + struct mt76_dev *mdev = &dev->mt76; + int err; + + clear_bit(MT76_STATE_SUSPEND, &mdev->phy.state); + + err = mt7921_mcu_drv_pmctrl(dev); + if (err < 0) + goto failed; + + mt76_worker_enable(&mdev->tx_worker); + mt76_worker_enable(&mdev->sdio.txrx_worker); + mt76_worker_enable(&mdev->sdio.status_worker); + mt76_worker_enable(&mdev->sdio.net_worker); + + /* restore previous ds setting */ + if (!pm->ds_enable) + mt76_connac_mcu_set_deep_sleep(mdev, false); + + err = mt76_connac_mcu_set_hif_suspend(mdev, false); +failed: + pm->suspended = false; + + if (err < 0) + mt7921_reset(&dev->mt76); + + return err; +} + +MODULE_DEVICE_TABLE(sdio, mt7921s_table); +MODULE_FIRMWARE(MT7921_FIRMWARE_WM); +MODULE_FIRMWARE(MT7921_ROM_PATCH); + +static DEFINE_SIMPLE_DEV_PM_OPS(mt7921s_pm_ops, mt7921s_suspend, mt7921s_resume); + +static struct sdio_driver mt7921s_driver = { + .name = KBUILD_MODNAME, + .probe = mt7921s_probe, + .remove = mt7921s_remove, + .id_table = mt7921s_table, + .drv.pm = pm_sleep_ptr(&mt7921s_pm_ops), +}; +module_sdio_driver(mt7921s_driver); +MODULE_AUTHOR("Sean Wang "); +MODULE_LICENSE("Dual BSD/GPL"); -- cgit v1.2.3