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/mt7615/mmio.c | 276 +++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/mmio.c (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/mmio.c') diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7615/mmio.c new file mode 100644 index 000000000..83173efb5 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mmio.c @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include +#include +#include +#include + +#include "mt7615.h" +#include "regs.h" +#include "mac.h" +#include "../trace.h" + +const u32 mt7615e_reg_map[] = { + [MT_TOP_CFG_BASE] = 0x01000, + [MT_HW_BASE] = 0x01000, + [MT_PCIE_REMAP_2] = 0x02504, + [MT_ARB_BASE] = 0x20c00, + [MT_HIF_BASE] = 0x04000, + [MT_CSR_BASE] = 0x07000, + [MT_PLE_BASE] = 0x08000, + [MT_PSE_BASE] = 0x0c000, + [MT_CFG_BASE] = 0x20200, + [MT_AGG_BASE] = 0x20a00, + [MT_TMAC_BASE] = 0x21000, + [MT_RMAC_BASE] = 0x21200, + [MT_DMA_BASE] = 0x21800, + [MT_PF_BASE] = 0x22000, + [MT_WTBL_BASE_ON] = 0x23000, + [MT_WTBL_BASE_OFF] = 0x23400, + [MT_LPON_BASE] = 0x24200, + [MT_MIB_BASE] = 0x24800, + [MT_WTBL_BASE_ADDR] = 0x30000, + [MT_PCIE_REMAP_BASE2] = 0x80000, + [MT_TOP_MISC_BASE] = 0xc0000, + [MT_EFUSE_ADDR_BASE] = 0x81070000, +}; + +const u32 mt7663e_reg_map[] = { + [MT_TOP_CFG_BASE] = 0x01000, + [MT_HW_BASE] = 0x02000, + [MT_DMA_SHDL_BASE] = 0x06000, + [MT_PCIE_REMAP_2] = 0x0700c, + [MT_ARB_BASE] = 0x20c00, + [MT_HIF_BASE] = 0x04000, + [MT_CSR_BASE] = 0x07000, + [MT_PLE_BASE] = 0x08000, + [MT_PSE_BASE] = 0x0c000, + [MT_PP_BASE] = 0x0e000, + [MT_CFG_BASE] = 0x20000, + [MT_AGG_BASE] = 0x22000, + [MT_TMAC_BASE] = 0x24000, + [MT_RMAC_BASE] = 0x25000, + [MT_DMA_BASE] = 0x27000, + [MT_PF_BASE] = 0x28000, + [MT_WTBL_BASE_ON] = 0x29000, + [MT_WTBL_BASE_OFF] = 0x29800, + [MT_LPON_BASE] = 0x2b000, + [MT_MIB_BASE] = 0x2d000, + [MT_WTBL_BASE_ADDR] = 0x30000, + [MT_PCIE_REMAP_BASE2] = 0x90000, + [MT_TOP_MISC_BASE] = 0xc0000, + [MT_EFUSE_ADDR_BASE] = 0x78011000, +}; + +static void +mt7615_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + + mt7615_irq_enable(dev, MT_INT_RX_DONE(q)); +} + +static irqreturn_t mt7615_irq_handler(int irq, void *dev_instance) +{ + struct mt7615_dev *dev = dev_instance; + + mt76_wr(dev, MT_INT_MASK_CSR, 0); + + if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) + return IRQ_NONE; + + tasklet_schedule(&dev->irq_tasklet); + + return IRQ_HANDLED; +} + +static void mt7615_irq_tasklet(struct tasklet_struct *t) +{ + struct mt7615_dev *dev = from_tasklet(dev, t, irq_tasklet); + u32 intr, mask = 0, tx_mcu_mask = mt7615_tx_mcu_int_mask(dev); + u32 mcu_int; + + mt76_wr(dev, MT_INT_MASK_CSR, 0); + + intr = mt76_rr(dev, MT_INT_SOURCE_CSR); + intr &= dev->mt76.mmio.irqmask; + mt76_wr(dev, MT_INT_SOURCE_CSR, intr); + + trace_dev_irq(&dev->mt76, intr, dev->mt76.mmio.irqmask); + + mask |= intr & MT_INT_RX_DONE_ALL; + if (intr & tx_mcu_mask) + mask |= tx_mcu_mask; + mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0); + + if (intr & tx_mcu_mask) + napi_schedule(&dev->mt76.tx_napi); + + if (intr & MT_INT_RX_DONE(0)) + napi_schedule(&dev->mt76.napi[0]); + + if (intr & MT_INT_RX_DONE(1)) + napi_schedule(&dev->mt76.napi[1]); + + if (!(intr & (MT_INT_MCU_CMD | MT7663_INT_MCU_CMD))) + return; + + if (is_mt7663(&dev->mt76)) { + mcu_int = mt76_rr(dev, MT_MCU2HOST_INT_STATUS); + mcu_int &= MT7663_MCU_CMD_ERROR_MASK; + mt76_wr(dev, MT_MCU2HOST_INT_STATUS, mcu_int); + } else { + mcu_int = mt76_rr(dev, MT_MCU_CMD); + mcu_int &= MT_MCU_CMD_ERROR_MASK; + } + + if (!mcu_int) + return; + + dev->reset_state = mcu_int; + queue_work(dev->mt76.wq, &dev->reset_work); + wake_up(&dev->reset_wait); +} + +static u32 __mt7615_reg_addr(struct mt7615_dev *dev, u32 addr) +{ + if (addr < 0x100000) + return addr; + + return mt7615_reg_map(dev, addr); +} + +static u32 mt7615_rr(struct mt76_dev *mdev, u32 offset) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + u32 addr = __mt7615_reg_addr(dev, offset); + + return dev->bus_ops->rr(mdev, addr); +} + +static void mt7615_wr(struct mt76_dev *mdev, u32 offset, u32 val) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + u32 addr = __mt7615_reg_addr(dev, offset); + + dev->bus_ops->wr(mdev, addr, val); +} + +static u32 mt7615_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + u32 addr = __mt7615_reg_addr(dev, offset); + + return dev->bus_ops->rmw(mdev, addr, mask, val); +} + +int mt7615_mmio_probe(struct device *pdev, void __iomem *mem_base, + int irq, const u32 *map) +{ + static const struct mt76_driver_ops drv_ops = { + /* txwi_size = txd size + txp size */ + .txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_txp_common), + .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ, + .survey_flags = SURVEY_INFO_TIME_TX | + SURVEY_INFO_TIME_RX | + SURVEY_INFO_TIME_BSS_RX, + .token_size = MT7615_TOKEN_SIZE, + .tx_prepare_skb = mt7615_tx_prepare_skb, + .tx_complete_skb = mt76_connac_tx_complete_skb, + .rx_check = mt7615_rx_check, + .rx_skb = mt7615_queue_rx_skb, + .rx_poll_complete = mt7615_rx_poll_complete, + .sta_ps = mt7615_sta_ps, + .sta_add = mt7615_mac_sta_add, + .sta_remove = mt7615_mac_sta_remove, + .update_survey = mt7615_update_channel, + }; + struct mt76_bus_ops *bus_ops; + struct ieee80211_ops *ops; + struct mt7615_dev *dev; + struct mt76_dev *mdev; + int ret; + + ops = devm_kmemdup(pdev, &mt7615_ops, sizeof(mt7615_ops), GFP_KERNEL); + if (!ops) + return -ENOMEM; + + mdev = mt76_alloc_device(pdev, sizeof(*dev), ops, &drv_ops); + if (!mdev) + return -ENOMEM; + + dev = container_of(mdev, struct mt7615_dev, mt76); + mt76_mmio_init(&dev->mt76, mem_base); + tasklet_setup(&dev->irq_tasklet, mt7615_irq_tasklet); + + dev->reg_map = map; + dev->ops = ops; + 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); + + dev->bus_ops = dev->mt76.bus; + bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops), + GFP_KERNEL); + if (!bus_ops) { + ret = -ENOMEM; + goto err_free_dev; + } + + bus_ops->rr = mt7615_rr; + bus_ops->wr = mt7615_wr; + bus_ops->rmw = mt7615_rmw; + dev->mt76.bus = bus_ops; + + mt76_wr(dev, MT_INT_MASK_CSR, 0); + + ret = devm_request_irq(mdev->dev, irq, mt7615_irq_handler, + IRQF_SHARED, KBUILD_MODNAME, dev); + if (ret) + goto err_free_dev; + + if (is_mt7663(mdev)) + mt76_wr(dev, MT_PCIE_IRQ_ENABLE, 1); + + ret = mt7615_register_device(dev); + if (ret) + goto err_free_irq; + + return 0; + +err_free_irq: + devm_free_irq(pdev, irq, dev); +err_free_dev: + mt76_free_device(&dev->mt76); + + return ret; +} + +static int __init mt7615_init(void) +{ + int ret; + + ret = pci_register_driver(&mt7615_pci_driver); + if (ret) + return ret; + + if (IS_ENABLED(CONFIG_MT7622_WMAC)) { + ret = platform_driver_register(&mt7622_wmac_driver); + if (ret) + pci_unregister_driver(&mt7615_pci_driver); + } + + return ret; +} + +static void __exit mt7615_exit(void) +{ + if (IS_ENABLED(CONFIG_MT7622_WMAC)) + platform_driver_unregister(&mt7622_wmac_driver); + pci_unregister_driver(&mt7615_pci_driver); +} + +module_init(mt7615_init); +module_exit(mt7615_exit); +MODULE_LICENSE("Dual BSD/GPL"); -- cgit v1.2.3