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/i2c/busses/i2c-robotfuzz-osif.c | 196 ++++++++++++++++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 drivers/i2c/busses/i2c-robotfuzz-osif.c (limited to 'drivers/i2c/busses/i2c-robotfuzz-osif.c') diff --git a/drivers/i2c/busses/i2c-robotfuzz-osif.c b/drivers/i2c/busses/i2c-robotfuzz-osif.c new file mode 100644 index 000000000..66dfa211e --- /dev/null +++ b/drivers/i2c/busses/i2c-robotfuzz-osif.c @@ -0,0 +1,196 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Driver for RobotFuzz OSIF + * + * Copyright (c) 2013 Andrew Lunn + * Copyright (c) 2007 Barry Carter + * + * Based on the i2c-tiny-usb by + * + * Copyright (C) 2006 Til Harbaum (Till@Harbaum.org) + */ + +#include +#include +#include +#include +#include +#include + +#define OSIFI2C_READ 20 +#define OSIFI2C_WRITE 21 +#define OSIFI2C_STOP 22 +#define OSIFI2C_STATUS 23 +#define OSIFI2C_SET_BIT_RATE 24 + +#define STATUS_ADDRESS_ACK 0 +#define STATUS_ADDRESS_NAK 2 + +struct osif_priv { + struct usb_device *usb_dev; + struct usb_interface *interface; + struct i2c_adapter adapter; + unsigned char status; +}; + +static int osif_usb_read(struct i2c_adapter *adapter, int cmd, + int value, int index, void *data, int len) +{ + struct osif_priv *priv = adapter->algo_data; + + return usb_control_msg(priv->usb_dev, usb_rcvctrlpipe(priv->usb_dev, 0), + cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE | + USB_DIR_IN, value, index, data, len, 2000); +} + +static int osif_usb_write(struct i2c_adapter *adapter, int cmd, + int value, int index, void *data, int len) +{ + + struct osif_priv *priv = adapter->algo_data; + + return usb_control_msg(priv->usb_dev, usb_sndctrlpipe(priv->usb_dev, 0), + cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE, + value, index, data, len, 2000); +} + +static int osif_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, + int num) +{ + struct osif_priv *priv = adapter->algo_data; + struct i2c_msg *pmsg; + int ret; + int i; + + for (i = 0; i < num; i++) { + pmsg = &msgs[i]; + + if (pmsg->flags & I2C_M_RD) { + ret = osif_usb_read(adapter, OSIFI2C_READ, + pmsg->flags, pmsg->addr, + pmsg->buf, pmsg->len); + if (ret != pmsg->len) { + dev_err(&adapter->dev, "failure reading data\n"); + return -EREMOTEIO; + } + } else { + ret = osif_usb_write(adapter, OSIFI2C_WRITE, + pmsg->flags, pmsg->addr, + pmsg->buf, pmsg->len); + if (ret != pmsg->len) { + dev_err(&adapter->dev, "failure writing data\n"); + return -EREMOTEIO; + } + } + + ret = osif_usb_write(adapter, OSIFI2C_STOP, 0, 0, NULL, 0); + if (ret) { + dev_err(&adapter->dev, "failure sending STOP\n"); + return -EREMOTEIO; + } + + /* read status */ + ret = osif_usb_read(adapter, OSIFI2C_STATUS, 0, 0, + &priv->status, 1); + if (ret != 1) { + dev_err(&adapter->dev, "failure reading status\n"); + return -EREMOTEIO; + } + + if (priv->status != STATUS_ADDRESS_ACK) { + dev_dbg(&adapter->dev, "status = %d\n", priv->status); + return -EREMOTEIO; + } + } + + return i; +} + +static u32 osif_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static const struct i2c_algorithm osif_algorithm = { + .master_xfer = osif_xfer, + .functionality = osif_func, +}; + +#define USB_OSIF_VENDOR_ID 0x1964 +#define USB_OSIF_PRODUCT_ID 0x0001 + +static const struct usb_device_id osif_table[] = { + { USB_DEVICE(USB_OSIF_VENDOR_ID, USB_OSIF_PRODUCT_ID) }, + { } +}; +MODULE_DEVICE_TABLE(usb, osif_table); + +static int osif_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + int ret; + struct osif_priv *priv; + u16 version; + + priv = devm_kzalloc(&interface->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->usb_dev = usb_get_dev(interface_to_usbdev(interface)); + priv->interface = interface; + + usb_set_intfdata(interface, priv); + + priv->adapter.owner = THIS_MODULE; + priv->adapter.class = I2C_CLASS_HWMON; + priv->adapter.algo = &osif_algorithm; + priv->adapter.algo_data = priv; + snprintf(priv->adapter.name, sizeof(priv->adapter.name), + "OSIF at bus %03d device %03d", + priv->usb_dev->bus->busnum, priv->usb_dev->devnum); + + /* + * Set bus frequency. The frequency is: + * 120,000,000 / ( 16 + 2 * div * 4^prescale). + * Using dev = 52, prescale = 0 give 100KHz */ + ret = osif_usb_write(&priv->adapter, OSIFI2C_SET_BIT_RATE, 52, 0, + NULL, 0); + if (ret) { + dev_err(&interface->dev, "failure sending bit rate"); + usb_put_dev(priv->usb_dev); + return ret; + } + + i2c_add_adapter(&(priv->adapter)); + + version = le16_to_cpu(priv->usb_dev->descriptor.bcdDevice); + dev_info(&interface->dev, + "version %x.%02x found at bus %03d address %03d", + version >> 8, version & 0xff, + priv->usb_dev->bus->busnum, priv->usb_dev->devnum); + + return 0; +} + +static void osif_disconnect(struct usb_interface *interface) +{ + struct osif_priv *priv = usb_get_intfdata(interface); + + i2c_del_adapter(&(priv->adapter)); + usb_set_intfdata(interface, NULL); + usb_put_dev(priv->usb_dev); +} + +static struct usb_driver osif_driver = { + .name = "RobotFuzz Open Source InterFace, OSIF", + .probe = osif_probe, + .disconnect = osif_disconnect, + .id_table = osif_table, +}; + +module_usb_driver(osif_driver); + +MODULE_AUTHOR("Andrew Lunn "); +MODULE_AUTHOR("Barry Carter "); +MODULE_DESCRIPTION("RobotFuzz OSIF driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3