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/ohci-ppc-of.c | 234 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 drivers/usb/host/ohci-ppc-of.c (limited to 'drivers/usb/host/ohci-ppc-of.c') diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c new file mode 100644 index 000000000..f2f6c832e --- /dev/null +++ b/drivers/usb/host/ohci-ppc-of.c @@ -0,0 +1,234 @@ +// SPDX-License-Identifier: GPL-1.0+ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2002 David Brownell + * (C) Copyright 2002 Hewlett-Packard Company + * (C) Copyright 2006 Sylvain Munaut + * + * Bus glue for OHCI HC on the of_platform bus + * + * Modified for of_platform bus from ohci-sa1111.c + * + * This file is licenced under the GPL. + */ + +#include +#include +#include +#include + +static int +ohci_ppc_of_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + dev_err(hcd->self.controller, "can't start %s\n", + hcd->self.bus_name); + ohci_stop(hcd); + return ret; + } + + return 0; +} + +static const struct hc_driver ohci_ppc_of_hc_driver = { + .description = hcd_name, + .product_desc = "OF OHCI", + .hcd_priv_size = sizeof(struct ohci_hcd), + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_DMA | HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .start = ohci_ppc_of_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ohci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + + +static int ohci_hcd_ppc_of_probe(struct platform_device *op) +{ + struct device_node *dn = op->dev.of_node; + struct usb_hcd *hcd; + struct ohci_hcd *ohci; + struct resource res; + int irq; + + int rv; + int is_bigendian; + struct device_node *np; + + if (usb_disabled()) + return -ENODEV; + + is_bigendian = + of_device_is_compatible(dn, "ohci-bigendian") || + of_device_is_compatible(dn, "ohci-be"); + + dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n"); + + rv = of_address_to_resource(dn, 0, &res); + if (rv) + return rv; + + hcd = usb_create_hcd(&ohci_ppc_of_hc_driver, &op->dev, "PPC-OF USB"); + if (!hcd) + return -ENOMEM; + + hcd->rsrc_start = res.start; + hcd->rsrc_len = resource_size(&res); + + hcd->regs = devm_ioremap_resource(&op->dev, &res); + if (IS_ERR(hcd->regs)) { + rv = PTR_ERR(hcd->regs); + goto err_rmr; + } + + irq = irq_of_parse_and_map(dn, 0); + if (!irq) { + dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", + __FILE__); + rv = -EBUSY; + goto err_rmr; + } + + ohci = hcd_to_ohci(hcd); + if (is_bigendian) { + ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC; + if (of_device_is_compatible(dn, "fsl,mpc5200-ohci")) + ohci->flags |= OHCI_QUIRK_FRAME_NO; + if (of_device_is_compatible(dn, "mpc5200-ohci")) + ohci->flags |= OHCI_QUIRK_FRAME_NO; + } + + ohci_hcd_init(ohci); + + rv = usb_add_hcd(hcd, irq, 0); + if (rv == 0) { + device_wakeup_enable(hcd->self.controller); + return 0; + } + + /* by now, 440epx is known to show usb_23 erratum */ + np = of_find_compatible_node(NULL, NULL, "ibm,usb-ehci-440epx"); + + /* Work around - At this point ohci_run has executed, the + * controller is running, everything, the root ports, etc., is + * set up. If the ehci driver is loaded, put the ohci core in + * the suspended state. The ehci driver will bring it out of + * suspended state when / if a non-high speed USB device is + * attached to the USB Host port. If the ehci driver is not + * loaded, do nothing. request_mem_region is used to test if + * the ehci driver is loaded. + */ + if (np != NULL) { + if (!of_address_to_resource(np, 0, &res)) { + if (!request_mem_region(res.start, 0x4, hcd_name)) { + writel_be((readl_be(&ohci->regs->control) | + OHCI_USB_SUSPEND), &ohci->regs->control); + (void) readl_be(&ohci->regs->control); + } else + release_mem_region(res.start, 0x4); + } else + pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__); + of_node_put(np); + } + + irq_dispose_mapping(irq); +err_rmr: + usb_put_hcd(hcd); + + return rv; +} + +static int ohci_hcd_ppc_of_remove(struct platform_device *op) +{ + struct usb_hcd *hcd = platform_get_drvdata(op); + + dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n"); + + usb_remove_hcd(hcd); + + irq_dispose_mapping(hcd->irq); + + usb_put_hcd(hcd); + + return 0; +} + +static const struct of_device_id ohci_hcd_ppc_of_match[] = { +#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE + { + .name = "usb", + .compatible = "ohci-bigendian", + }, + { + .name = "usb", + .compatible = "ohci-be", + }, +#endif +#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_LE + { + .name = "usb", + .compatible = "ohci-littledian", + }, + { + .name = "usb", + .compatible = "ohci-le", + }, +#endif + {}, +}; +MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_match); + +#if !defined(CONFIG_USB_OHCI_HCD_PPC_OF_BE) && \ + !defined(CONFIG_USB_OHCI_HCD_PPC_OF_LE) +#error "No endianness selected for ppc-of-ohci" +#endif + + +static struct platform_driver ohci_hcd_ppc_of_driver = { + .probe = ohci_hcd_ppc_of_probe, + .remove = ohci_hcd_ppc_of_remove, + .shutdown = usb_hcd_platform_shutdown, + .driver = { + .name = "ppc-of-ohci", + .of_match_table = ohci_hcd_ppc_of_match, + }, +}; + -- cgit v1.2.3