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/phy/allwinner/phy-sun50i-usb3.c | 188 ++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 drivers/phy/allwinner/phy-sun50i-usb3.c (limited to 'drivers/phy/allwinner/phy-sun50i-usb3.c') diff --git a/drivers/phy/allwinner/phy-sun50i-usb3.c b/drivers/phy/allwinner/phy-sun50i-usb3.c new file mode 100644 index 000000000..84055b720 --- /dev/null +++ b/drivers/phy/allwinner/phy-sun50i-usb3.c @@ -0,0 +1,188 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Allwinner sun50i(H6) USB 3.0 phy driver + * + * Copyright (C) 2017 Icenowy Zheng + * + * Based on phy-sun9i-usb.c, which is: + * + * Copyright (C) 2014-2015 Chen-Yu Tsai + * + * Based on code from Allwinner BSP, which is: + * + * Copyright (c) 2010-2015 Allwinner Technology Co., Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Interface Status and Control Registers */ +#define SUNXI_ISCR 0x00 +#define SUNXI_PIPE_CLOCK_CONTROL 0x14 +#define SUNXI_PHY_TUNE_LOW 0x18 +#define SUNXI_PHY_TUNE_HIGH 0x1c +#define SUNXI_PHY_EXTERNAL_CONTROL 0x20 + +/* USB2.0 Interface Status and Control Register */ +#define SUNXI_ISCR_FORCE_VBUS (3 << 12) + +/* PIPE Clock Control Register */ +#define SUNXI_PCC_PIPE_CLK_OPEN (1 << 6) + +/* PHY External Control Register */ +#define SUNXI_PEC_EXTERN_VBUS (3 << 1) +#define SUNXI_PEC_SSC_EN (1 << 24) +#define SUNXI_PEC_REF_SSP_EN (1 << 26) + +/* PHY Tune High Register */ +#define SUNXI_TX_DEEMPH_3P5DB(n) ((n) << 19) +#define SUNXI_TX_DEEMPH_3P5DB_MASK GENMASK(24, 19) +#define SUNXI_TX_DEEMPH_6DB(n) ((n) << 13) +#define SUNXI_TX_DEEMPH_6GB_MASK GENMASK(18, 13) +#define SUNXI_TX_SWING_FULL(n) ((n) << 6) +#define SUNXI_TX_SWING_FULL_MASK GENMASK(12, 6) +#define SUNXI_LOS_BIAS(n) ((n) << 3) +#define SUNXI_LOS_BIAS_MASK GENMASK(5, 3) +#define SUNXI_TXVBOOSTLVL(n) ((n) << 0) +#define SUNXI_TXVBOOSTLVL_MASK GENMASK(2, 0) + +struct sun50i_usb3_phy { + struct phy *phy; + void __iomem *regs; + struct reset_control *reset; + struct clk *clk; +}; + +static void sun50i_usb3_phy_open(struct sun50i_usb3_phy *phy) +{ + u32 val; + + val = readl(phy->regs + SUNXI_PHY_EXTERNAL_CONTROL); + val |= SUNXI_PEC_EXTERN_VBUS; + val |= SUNXI_PEC_SSC_EN | SUNXI_PEC_REF_SSP_EN; + writel(val, phy->regs + SUNXI_PHY_EXTERNAL_CONTROL); + + val = readl(phy->regs + SUNXI_PIPE_CLOCK_CONTROL); + val |= SUNXI_PCC_PIPE_CLK_OPEN; + writel(val, phy->regs + SUNXI_PIPE_CLOCK_CONTROL); + + val = readl(phy->regs + SUNXI_ISCR); + val |= SUNXI_ISCR_FORCE_VBUS; + writel(val, phy->regs + SUNXI_ISCR); + + /* + * All the magic numbers written to the PHY_TUNE_{LOW_HIGH} + * registers are directly taken from the BSP USB3 driver from + * Allwiner. + */ + writel(0x0047fc87, phy->regs + SUNXI_PHY_TUNE_LOW); + + val = readl(phy->regs + SUNXI_PHY_TUNE_HIGH); + val &= ~(SUNXI_TXVBOOSTLVL_MASK | SUNXI_LOS_BIAS_MASK | + SUNXI_TX_SWING_FULL_MASK | SUNXI_TX_DEEMPH_6GB_MASK | + SUNXI_TX_DEEMPH_3P5DB_MASK); + val |= SUNXI_TXVBOOSTLVL(0x7); + val |= SUNXI_LOS_BIAS(0x7); + val |= SUNXI_TX_SWING_FULL(0x55); + val |= SUNXI_TX_DEEMPH_6DB(0x20); + val |= SUNXI_TX_DEEMPH_3P5DB(0x15); + writel(val, phy->regs + SUNXI_PHY_TUNE_HIGH); +} + +static int sun50i_usb3_phy_init(struct phy *_phy) +{ + struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy); + int ret; + + ret = clk_prepare_enable(phy->clk); + if (ret) + return ret; + + ret = reset_control_deassert(phy->reset); + if (ret) { + clk_disable_unprepare(phy->clk); + return ret; + } + + sun50i_usb3_phy_open(phy); + return 0; +} + +static int sun50i_usb3_phy_exit(struct phy *_phy) +{ + struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy); + + reset_control_assert(phy->reset); + clk_disable_unprepare(phy->clk); + + return 0; +} + +static const struct phy_ops sun50i_usb3_phy_ops = { + .init = sun50i_usb3_phy_init, + .exit = sun50i_usb3_phy_exit, + .owner = THIS_MODULE, +}; + +static int sun50i_usb3_phy_probe(struct platform_device *pdev) +{ + struct sun50i_usb3_phy *phy; + struct device *dev = &pdev->dev; + struct phy_provider *phy_provider; + + phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); + if (!phy) + return -ENOMEM; + + phy->clk = devm_clk_get(dev, NULL); + if (IS_ERR(phy->clk)) { + if (PTR_ERR(phy->clk) != -EPROBE_DEFER) + dev_err(dev, "failed to get phy clock\n"); + return PTR_ERR(phy->clk); + } + + phy->reset = devm_reset_control_get(dev, NULL); + if (IS_ERR(phy->reset)) { + dev_err(dev, "failed to get reset control\n"); + return PTR_ERR(phy->reset); + } + + phy->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(phy->regs)) + return PTR_ERR(phy->regs); + + phy->phy = devm_phy_create(dev, NULL, &sun50i_usb3_phy_ops); + if (IS_ERR(phy->phy)) { + dev_err(dev, "failed to create PHY\n"); + return PTR_ERR(phy->phy); + } + + phy_set_drvdata(phy->phy, phy); + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +} + +static const struct of_device_id sun50i_usb3_phy_of_match[] = { + { .compatible = "allwinner,sun50i-h6-usb3-phy" }, + { }, +}; +MODULE_DEVICE_TABLE(of, sun50i_usb3_phy_of_match); + +static struct platform_driver sun50i_usb3_phy_driver = { + .probe = sun50i_usb3_phy_probe, + .driver = { + .of_match_table = sun50i_usb3_phy_of_match, + .name = "sun50i-usb3-phy", + } +}; +module_platform_driver(sun50i_usb3_phy_driver); + +MODULE_DESCRIPTION("Allwinner H6 USB 3.0 phy driver"); +MODULE_AUTHOR("Icenowy Zheng "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3