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/usb/host/fhci-hub.c | 335 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 335 insertions(+) create mode 100644 drivers/usb/host/fhci-hub.c (limited to 'drivers/usb/host/fhci-hub.c') diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c new file mode 100644 index 000000000..5f48660eb --- /dev/null +++ b/drivers/usb/host/fhci-hub.c @@ -0,0 +1,335 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Freescale QUICC Engine USB Host Controller Driver + * + * Copyright (c) Freescale Semicondutor, Inc. 2006. + * Shlomi Gridish + * Jerry Huang + * Copyright (c) Logic Product Development, Inc. 2007 + * Peter Barada + * Copyright (c) MontaVista Software, Inc. 2008. + * Anton Vorontsov + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "fhci.h" + +/* virtual root hub specific descriptor */ +static u8 root_hub_des[] = { + 0x09, /* blength */ + USB_DT_HUB, /* bDescriptorType;hub-descriptor */ + 0x01, /* bNbrPorts */ + HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_NO_OCPM, /* wHubCharacteristics */ + 0x00, /* per-port power, no overcurrent */ + 0x01, /* bPwrOn2pwrGood;2ms */ + 0x00, /* bHubContrCurrent;0mA */ + 0x00, /* DeviceRemoveable */ + 0xff, /* PortPwrCtrlMask */ +}; + +static void fhci_gpio_set_value(struct fhci_hcd *fhci, int gpio_nr, bool on) +{ + struct gpio_desc *gpiod = fhci->gpiods[gpio_nr]; + + if (!gpiod) + return; + + gpiod_set_value(gpiod, on); + mdelay(5); +} + +void fhci_config_transceiver(struct fhci_hcd *fhci, + enum fhci_port_status status) +{ + fhci_dbg(fhci, "-> %s: %d\n", __func__, status); + + switch (status) { + case FHCI_PORT_POWER_OFF: + fhci_gpio_set_value(fhci, GPIO_POWER, false); + break; + case FHCI_PORT_DISABLED: + case FHCI_PORT_WAITING: + fhci_gpio_set_value(fhci, GPIO_POWER, true); + break; + case FHCI_PORT_LOW: + fhci_gpio_set_value(fhci, GPIO_SPEED, false); + break; + case FHCI_PORT_FULL: + fhci_gpio_set_value(fhci, GPIO_SPEED, true); + break; + default: + WARN_ON(1); + break; + } + + fhci_dbg(fhci, "<- %s: %d\n", __func__, status); +} + +/* disable the USB port by clearing the EN bit in the USBMOD register */ +void fhci_port_disable(struct fhci_hcd *fhci) +{ + struct fhci_usb *usb = (struct fhci_usb *)fhci->usb_lld; + enum fhci_port_status port_status; + + fhci_dbg(fhci, "-> %s\n", __func__); + + fhci_stop_sof_timer(fhci); + + fhci_flush_all_transmissions(usb); + + fhci_usb_disable_interrupt((struct fhci_usb *)fhci->usb_lld); + port_status = usb->port_status; + usb->port_status = FHCI_PORT_DISABLED; + + /* Enable IDLE since we want to know if something comes along */ + usb->saved_msk |= USB_E_IDLE_MASK; + out_be16(&usb->fhci->regs->usb_usbmr, usb->saved_msk); + + /* check if during the disconnection process attached new device */ + if (port_status == FHCI_PORT_WAITING) + fhci_device_connected_interrupt(fhci); + usb->vroot_hub->port.wPortStatus &= ~USB_PORT_STAT_ENABLE; + usb->vroot_hub->port.wPortChange |= USB_PORT_STAT_C_ENABLE; + fhci_usb_enable_interrupt((struct fhci_usb *)fhci->usb_lld); + + fhci_dbg(fhci, "<- %s\n", __func__); +} + +/* enable the USB port by setting the EN bit in the USBMOD register */ +void fhci_port_enable(void *lld) +{ + struct fhci_usb *usb = (struct fhci_usb *)lld; + struct fhci_hcd *fhci = usb->fhci; + + fhci_dbg(fhci, "-> %s\n", __func__); + + fhci_config_transceiver(fhci, usb->port_status); + + if ((usb->port_status != FHCI_PORT_FULL) && + (usb->port_status != FHCI_PORT_LOW)) + fhci_start_sof_timer(fhci); + + usb->vroot_hub->port.wPortStatus |= USB_PORT_STAT_ENABLE; + usb->vroot_hub->port.wPortChange |= USB_PORT_STAT_C_ENABLE; + + fhci_dbg(fhci, "<- %s\n", __func__); +} + +void fhci_io_port_generate_reset(struct fhci_hcd *fhci) +{ + fhci_dbg(fhci, "-> %s\n", __func__); + + gpiod_direction_output(fhci->gpiods[GPIO_USBOE], 0); + gpiod_direction_output(fhci->gpiods[GPIO_USBTP], 0); + gpiod_direction_output(fhci->gpiods[GPIO_USBTN], 0); + + mdelay(5); + + qe_pin_set_dedicated(fhci->pins[PIN_USBOE]); + qe_pin_set_dedicated(fhci->pins[PIN_USBTP]); + qe_pin_set_dedicated(fhci->pins[PIN_USBTN]); + + fhci_dbg(fhci, "<- %s\n", __func__); +} + +/* generate the RESET condition on the bus */ +void fhci_port_reset(void *lld) +{ + struct fhci_usb *usb = (struct fhci_usb *)lld; + struct fhci_hcd *fhci = usb->fhci; + u8 mode; + u16 mask; + + fhci_dbg(fhci, "-> %s\n", __func__); + + fhci_stop_sof_timer(fhci); + /* disable the USB controller */ + mode = in_8(&fhci->regs->usb_usmod); + out_8(&fhci->regs->usb_usmod, mode & (~USB_MODE_EN)); + + /* disable idle interrupts */ + mask = in_be16(&fhci->regs->usb_usbmr); + out_be16(&fhci->regs->usb_usbmr, mask & (~USB_E_IDLE_MASK)); + + fhci_io_port_generate_reset(fhci); + + /* enable interrupt on this endpoint */ + out_be16(&fhci->regs->usb_usbmr, mask); + + /* enable the USB controller */ + mode = in_8(&fhci->regs->usb_usmod); + out_8(&fhci->regs->usb_usmod, mode | USB_MODE_EN); + fhci_start_sof_timer(fhci); + + fhci_dbg(fhci, "<- %s\n", __func__); +} + +int fhci_hub_status_data(struct usb_hcd *hcd, char *buf) +{ + struct fhci_hcd *fhci = hcd_to_fhci(hcd); + int ret = 0; + unsigned long flags; + + fhci_dbg(fhci, "-> %s\n", __func__); + + spin_lock_irqsave(&fhci->lock, flags); + + if (fhci->vroot_hub->port.wPortChange & (USB_PORT_STAT_C_CONNECTION | + USB_PORT_STAT_C_ENABLE | USB_PORT_STAT_C_SUSPEND | + USB_PORT_STAT_C_RESET | USB_PORT_STAT_C_OVERCURRENT)) { + *buf = 1 << 1; + ret = 1; + fhci_dbg(fhci, "-- %s\n", __func__); + } + + spin_unlock_irqrestore(&fhci->lock, flags); + + fhci_dbg(fhci, "<- %s\n", __func__); + + return ret; +} + +int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, + u16 wIndex, char *buf, u16 wLength) +{ + struct fhci_hcd *fhci = hcd_to_fhci(hcd); + int retval = 0; + struct usb_hub_status *hub_status; + struct usb_port_status *port_status; + unsigned long flags; + + spin_lock_irqsave(&fhci->lock, flags); + + fhci_dbg(fhci, "-> %s\n", __func__); + + switch (typeReq) { + case ClearHubFeature: + switch (wValue) { + case C_HUB_LOCAL_POWER: + case C_HUB_OVER_CURRENT: + break; + default: + goto error; + } + break; + case ClearPortFeature: + fhci->vroot_hub->feature &= (1 << wValue); + + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + fhci->vroot_hub->port.wPortStatus &= + ~USB_PORT_STAT_ENABLE; + fhci_port_disable(fhci); + break; + case USB_PORT_FEAT_C_ENABLE: + fhci->vroot_hub->port.wPortChange &= + ~USB_PORT_STAT_C_ENABLE; + break; + case USB_PORT_FEAT_SUSPEND: + fhci->vroot_hub->port.wPortStatus &= + ~USB_PORT_STAT_SUSPEND; + fhci_stop_sof_timer(fhci); + break; + case USB_PORT_FEAT_C_SUSPEND: + fhci->vroot_hub->port.wPortChange &= + ~USB_PORT_STAT_C_SUSPEND; + break; + case USB_PORT_FEAT_POWER: + fhci->vroot_hub->port.wPortStatus &= + ~USB_PORT_STAT_POWER; + fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF); + break; + case USB_PORT_FEAT_C_CONNECTION: + fhci->vroot_hub->port.wPortChange &= + ~USB_PORT_STAT_C_CONNECTION; + break; + case USB_PORT_FEAT_C_OVER_CURRENT: + fhci->vroot_hub->port.wPortChange &= + ~USB_PORT_STAT_C_OVERCURRENT; + break; + case USB_PORT_FEAT_C_RESET: + fhci->vroot_hub->port.wPortChange &= + ~USB_PORT_STAT_C_RESET; + break; + default: + goto error; + } + break; + case GetHubDescriptor: + memcpy(buf, root_hub_des, sizeof(root_hub_des)); + break; + case GetHubStatus: + hub_status = (struct usb_hub_status *)buf; + hub_status->wHubStatus = + cpu_to_le16(fhci->vroot_hub->hub.wHubStatus); + hub_status->wHubChange = + cpu_to_le16(fhci->vroot_hub->hub.wHubChange); + break; + case GetPortStatus: + port_status = (struct usb_port_status *)buf; + port_status->wPortStatus = + cpu_to_le16(fhci->vroot_hub->port.wPortStatus); + port_status->wPortChange = + cpu_to_le16(fhci->vroot_hub->port.wPortChange); + break; + case SetHubFeature: + switch (wValue) { + case C_HUB_OVER_CURRENT: + case C_HUB_LOCAL_POWER: + break; + default: + goto error; + } + break; + case SetPortFeature: + fhci->vroot_hub->feature |= (1 << wValue); + + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + fhci->vroot_hub->port.wPortStatus |= + USB_PORT_STAT_ENABLE; + fhci_port_enable(fhci->usb_lld); + break; + case USB_PORT_FEAT_SUSPEND: + fhci->vroot_hub->port.wPortStatus |= + USB_PORT_STAT_SUSPEND; + fhci_stop_sof_timer(fhci); + break; + case USB_PORT_FEAT_RESET: + fhci->vroot_hub->port.wPortStatus |= + USB_PORT_STAT_RESET; + fhci_port_reset(fhci->usb_lld); + fhci->vroot_hub->port.wPortStatus |= + USB_PORT_STAT_ENABLE; + fhci->vroot_hub->port.wPortStatus &= + ~USB_PORT_STAT_RESET; + break; + case USB_PORT_FEAT_POWER: + fhci->vroot_hub->port.wPortStatus |= + USB_PORT_STAT_POWER; + fhci_config_transceiver(fhci, FHCI_PORT_WAITING); + break; + default: + goto error; + } + break; + default: +error: + retval = -EPIPE; + } + + fhci_dbg(fhci, "<- %s\n", __func__); + + spin_unlock_irqrestore(&fhci->lock, flags); + + return retval; +} -- cgit v1.2.3