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/mt7915/pci.c | 241 ++++++++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7915/pci.c (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/pci.c') diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/pci.c b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c new file mode 100644 index 000000000..39132894e --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c @@ -0,0 +1,241 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. + * + * Author: Ryder Lee + */ + +#include +#include +#include + +#include "mt7915.h" +#include "mac.h" +#include "../trace.h" + +static LIST_HEAD(hif_list); +static DEFINE_SPINLOCK(hif_lock); +static u32 hif_idx; + +static const struct pci_device_id mt7915_pci_device_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7915) }, + { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7906) }, + { }, +}; + +static const struct pci_device_id mt7915_hif_device_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7916) }, + { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x790a) }, + { }, +}; + +static struct mt7915_hif *mt7915_pci_get_hif2(u32 idx) +{ + struct mt7915_hif *hif; + u32 val; + + spin_lock_bh(&hif_lock); + + list_for_each_entry(hif, &hif_list, list) { + val = readl(hif->regs + MT_PCIE_RECOG_ID); + val &= MT_PCIE_RECOG_ID_MASK; + if (val != idx) + continue; + + get_device(hif->dev); + goto out; + } + hif = NULL; + +out: + spin_unlock_bh(&hif_lock); + + return hif; +} + +static void mt7915_put_hif2(struct mt7915_hif *hif) +{ + if (!hif) + return; + + put_device(hif->dev); +} + +static struct mt7915_hif *mt7915_pci_init_hif2(struct pci_dev *pdev) +{ + struct pci_dev *tmp_pdev; + + hif_idx++; + + tmp_pdev = pci_get_device(PCI_VENDOR_ID_MEDIATEK, 0x7916, NULL); + if (!tmp_pdev) { + tmp_pdev = pci_get_device(PCI_VENDOR_ID_MEDIATEK, 0x790a, NULL); + if (!tmp_pdev) + return NULL; + } + pci_dev_put(tmp_pdev); + + writel(hif_idx | MT_PCIE_RECOG_ID_SEM, + pcim_iomap_table(pdev)[0] + MT_PCIE_RECOG_ID); + + return mt7915_pci_get_hif2(hif_idx); +} + +static int mt7915_pci_hif2_probe(struct pci_dev *pdev) +{ + struct mt7915_hif *hif; + + hif = devm_kzalloc(&pdev->dev, sizeof(*hif), GFP_KERNEL); + if (!hif) + return -ENOMEM; + + hif->dev = &pdev->dev; + hif->regs = pcim_iomap_table(pdev)[0]; + hif->irq = pdev->irq; + spin_lock_bh(&hif_lock); + list_add(&hif->list, &hif_list); + spin_unlock_bh(&hif_lock); + pci_set_drvdata(pdev, hif); + + return 0; +} + +static int mt7915_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct mt7915_hif *hif2 = NULL; + struct mt7915_dev *dev; + struct mt76_dev *mdev; + int irq; + int ret; + + ret = pcim_enable_device(pdev); + if (ret) + return ret; + + ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); + if (ret) + return ret; + + pci_set_master(pdev); + + ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + mt76_pci_disable_aspm(pdev); + + if (id->device == 0x7916 || id->device == 0x790a) + return mt7915_pci_hif2_probe(pdev); + + dev = mt7915_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0], + id->device); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + mdev = &dev->mt76; + mt7915_wfsys_reset(dev); + hif2 = mt7915_pci_init_hif2(pdev); + + ret = mt7915_mmio_wed_init(dev, pdev, true, &irq); + if (ret < 0) + goto free_wed_or_irq_vector; + + if (!ret) { + hif2 = mt7915_pci_init_hif2(pdev); + + ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); + if (ret < 0) + goto free_device; + + irq = pdev->irq; + } + + ret = devm_request_irq(mdev->dev, irq, mt7915_irq_handler, + IRQF_SHARED, KBUILD_MODNAME, dev); + if (ret) + goto free_wed_or_irq_vector; + + /* master switch of PCIe tnterrupt enable */ + mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); + + if (hif2) { + dev->hif2 = hif2; + + mt76_wr(dev, MT_INT1_MASK_CSR, 0); + /* master switch of PCIe tnterrupt enable */ + if (is_mt7915(mdev)) + mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff); + else + mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0xff); + + ret = devm_request_irq(mdev->dev, dev->hif2->irq, + mt7915_irq_handler, IRQF_SHARED, + KBUILD_MODNAME "-hif", dev); + if (ret) + goto free_hif2; + } + + ret = mt7915_register_device(dev); + if (ret) + goto free_hif2_irq; + + return 0; + +free_hif2_irq: + if (dev->hif2) + devm_free_irq(mdev->dev, dev->hif2->irq, dev); +free_hif2: + if (dev->hif2) + put_device(dev->hif2->dev); + devm_free_irq(mdev->dev, irq, dev); +free_wed_or_irq_vector: + if (mtk_wed_device_active(&mdev->mmio.wed)) + mtk_wed_device_detach(&mdev->mmio.wed); + else + pci_free_irq_vectors(pdev); +free_device: + mt76_free_device(&dev->mt76); + + return ret; +} + +static void mt7915_hif_remove(struct pci_dev *pdev) +{ + struct mt7915_hif *hif = pci_get_drvdata(pdev); + + list_del(&hif->list); +} + +static void mt7915_pci_remove(struct pci_dev *pdev) +{ + struct mt76_dev *mdev; + struct mt7915_dev *dev; + + mdev = pci_get_drvdata(pdev); + dev = container_of(mdev, struct mt7915_dev, mt76); + mt7915_put_hif2(dev->hif2); + mt7915_unregister_device(dev); +} + +struct pci_driver mt7915_hif_driver = { + .name = KBUILD_MODNAME "_hif", + .id_table = mt7915_hif_device_table, + .probe = mt7915_pci_probe, + .remove = mt7915_hif_remove, +}; + +struct pci_driver mt7915_pci_driver = { + .name = KBUILD_MODNAME, + .id_table = mt7915_pci_device_table, + .probe = mt7915_pci_probe, + .remove = mt7915_pci_remove, +}; + +MODULE_DEVICE_TABLE(pci, mt7915_pci_device_table); +MODULE_DEVICE_TABLE(pci, mt7915_hif_device_table); +MODULE_FIRMWARE(MT7915_FIRMWARE_WA); +MODULE_FIRMWARE(MT7915_FIRMWARE_WM); +MODULE_FIRMWARE(MT7915_ROM_PATCH); +MODULE_FIRMWARE(MT7916_FIRMWARE_WA); +MODULE_FIRMWARE(MT7916_FIRMWARE_WM); +MODULE_FIRMWARE(MT7916_ROM_PATCH); -- cgit v1.2.3