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/misc/ibmasm/remote.c | 268 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 268 insertions(+) create mode 100644 drivers/misc/ibmasm/remote.c (limited to 'drivers/misc/ibmasm/remote.c') diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c new file mode 100644 index 000000000..ec816d3b3 --- /dev/null +++ b/drivers/misc/ibmasm/remote.c @@ -0,0 +1,268 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * IBM ASM Service Processor Device Driver + * + * Copyright (C) IBM Corporation, 2004 + * + * Authors: Max Asböck + * Vernon Mauery + */ + +/* Remote mouse and keyboard event handling functions */ + +#include +#include "ibmasm.h" +#include "remote.h" + +#define MOUSE_X_MAX 1600 +#define MOUSE_Y_MAX 1200 + +static const unsigned short xlate_high[XLATE_SIZE] = { + [KEY_SYM_ENTER & 0xff] = KEY_ENTER, + [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH, + [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK, + [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS, + [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT, + [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS, + [KEY_SYM_KP0 & 0xff] = KEY_KP0, + [KEY_SYM_KP1 & 0xff] = KEY_KP1, + [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2, + [KEY_SYM_KP3 & 0xff] = KEY_KP3, + [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4, + [KEY_SYM_KP5 & 0xff] = KEY_KP5, + [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6, + [KEY_SYM_KP7 & 0xff] = KEY_KP7, + [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8, + [KEY_SYM_KP9 & 0xff] = KEY_KP9, + [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE, + [KEY_SYM_TAB & 0xff] = KEY_TAB, + [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL, + [KEY_SYM_ALT & 0xff] = KEY_LEFTALT, + [KEY_SYM_INSERT & 0xff] = KEY_INSERT, + [KEY_SYM_DELETE & 0xff] = KEY_DELETE, + [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT, + [KEY_SYM_UARROW & 0xff] = KEY_UP, + [KEY_SYM_DARROW & 0xff] = KEY_DOWN, + [KEY_SYM_LARROW & 0xff] = KEY_LEFT, + [KEY_SYM_RARROW & 0xff] = KEY_RIGHT, + [KEY_SYM_ESCAPE & 0xff] = KEY_ESC, + [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP, + [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN, + [KEY_SYM_HOME & 0xff] = KEY_HOME, + [KEY_SYM_END & 0xff] = KEY_END, + [KEY_SYM_F1 & 0xff] = KEY_F1, + [KEY_SYM_F2 & 0xff] = KEY_F2, + [KEY_SYM_F3 & 0xff] = KEY_F3, + [KEY_SYM_F4 & 0xff] = KEY_F4, + [KEY_SYM_F5 & 0xff] = KEY_F5, + [KEY_SYM_F6 & 0xff] = KEY_F6, + [KEY_SYM_F7 & 0xff] = KEY_F7, + [KEY_SYM_F8 & 0xff] = KEY_F8, + [KEY_SYM_F9 & 0xff] = KEY_F9, + [KEY_SYM_F10 & 0xff] = KEY_F10, + [KEY_SYM_F11 & 0xff] = KEY_F11, + [KEY_SYM_F12 & 0xff] = KEY_F12, + [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK, + [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK, + [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK, +}; + +static const unsigned short xlate[XLATE_SIZE] = { + [NO_KEYCODE] = KEY_RESERVED, + [KEY_SYM_SPACE] = KEY_SPACE, + [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE, + [KEY_SYM_ONE] = KEY_1, [KEY_SYM_BANG] = KEY_1, + [KEY_SYM_TWO] = KEY_2, [KEY_SYM_AT] = KEY_2, + [KEY_SYM_THREE] = KEY_3, [KEY_SYM_POUND] = KEY_3, + [KEY_SYM_FOUR] = KEY_4, [KEY_SYM_DOLLAR] = KEY_4, + [KEY_SYM_FIVE] = KEY_5, [KEY_SYM_PERCENT] = KEY_5, + [KEY_SYM_SIX] = KEY_6, [KEY_SYM_CARAT] = KEY_6, + [KEY_SYM_SEVEN] = KEY_7, [KEY_SYM_AMPER] = KEY_7, + [KEY_SYM_EIGHT] = KEY_8, [KEY_SYM_STAR] = KEY_8, + [KEY_SYM_NINE] = KEY_9, [KEY_SYM_LPAREN] = KEY_9, + [KEY_SYM_ZERO] = KEY_0, [KEY_SYM_RPAREN] = KEY_0, + [KEY_SYM_MINUS] = KEY_MINUS, [KEY_SYM_USCORE] = KEY_MINUS, + [KEY_SYM_EQUAL] = KEY_EQUAL, [KEY_SYM_PLUS] = KEY_EQUAL, + [KEY_SYM_LBRKT] = KEY_LEFTBRACE, [KEY_SYM_LCURLY] = KEY_LEFTBRACE, + [KEY_SYM_RBRKT] = KEY_RIGHTBRACE, [KEY_SYM_RCURLY] = KEY_RIGHTBRACE, + [KEY_SYM_SLASH] = KEY_BACKSLASH, [KEY_SYM_PIPE] = KEY_BACKSLASH, + [KEY_SYM_TIC] = KEY_APOSTROPHE, [KEY_SYM_QUOTE] = KEY_APOSTROPHE, + [KEY_SYM_SEMIC] = KEY_SEMICOLON, [KEY_SYM_COLON] = KEY_SEMICOLON, + [KEY_SYM_COMMA] = KEY_COMMA, [KEY_SYM_LT] = KEY_COMMA, + [KEY_SYM_PERIOD] = KEY_DOT, [KEY_SYM_GT] = KEY_DOT, + [KEY_SYM_BSLASH] = KEY_SLASH, [KEY_SYM_QMARK] = KEY_SLASH, + [KEY_SYM_A] = KEY_A, [KEY_SYM_a] = KEY_A, + [KEY_SYM_B] = KEY_B, [KEY_SYM_b] = KEY_B, + [KEY_SYM_C] = KEY_C, [KEY_SYM_c] = KEY_C, + [KEY_SYM_D] = KEY_D, [KEY_SYM_d] = KEY_D, + [KEY_SYM_E] = KEY_E, [KEY_SYM_e] = KEY_E, + [KEY_SYM_F] = KEY_F, [KEY_SYM_f] = KEY_F, + [KEY_SYM_G] = KEY_G, [KEY_SYM_g] = KEY_G, + [KEY_SYM_H] = KEY_H, [KEY_SYM_h] = KEY_H, + [KEY_SYM_I] = KEY_I, [KEY_SYM_i] = KEY_I, + [KEY_SYM_J] = KEY_J, [KEY_SYM_j] = KEY_J, + [KEY_SYM_K] = KEY_K, [KEY_SYM_k] = KEY_K, + [KEY_SYM_L] = KEY_L, [KEY_SYM_l] = KEY_L, + [KEY_SYM_M] = KEY_M, [KEY_SYM_m] = KEY_M, + [KEY_SYM_N] = KEY_N, [KEY_SYM_n] = KEY_N, + [KEY_SYM_O] = KEY_O, [KEY_SYM_o] = KEY_O, + [KEY_SYM_P] = KEY_P, [KEY_SYM_p] = KEY_P, + [KEY_SYM_Q] = KEY_Q, [KEY_SYM_q] = KEY_Q, + [KEY_SYM_R] = KEY_R, [KEY_SYM_r] = KEY_R, + [KEY_SYM_S] = KEY_S, [KEY_SYM_s] = KEY_S, + [KEY_SYM_T] = KEY_T, [KEY_SYM_t] = KEY_T, + [KEY_SYM_U] = KEY_U, [KEY_SYM_u] = KEY_U, + [KEY_SYM_V] = KEY_V, [KEY_SYM_v] = KEY_V, + [KEY_SYM_W] = KEY_W, [KEY_SYM_w] = KEY_W, + [KEY_SYM_X] = KEY_X, [KEY_SYM_x] = KEY_X, + [KEY_SYM_Y] = KEY_Y, [KEY_SYM_y] = KEY_Y, + [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z, +}; + +static void print_input(struct remote_input *input) +{ + if (input->type == INPUT_TYPE_MOUSE) { + unsigned char buttons = input->mouse_buttons; + dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n", + input->data.mouse.x, input->data.mouse.y, + (buttons) ? " -- buttons:" : "", + (buttons & REMOTE_BUTTON_LEFT) ? "left " : "", + (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "", + (buttons & REMOTE_BUTTON_RIGHT) ? "right" : "" + ); + } else { + dbg("remote keypress (code, flag, down):" + "%d (0x%x) [0x%x] [0x%x]\n", + input->data.keyboard.key_code, + input->data.keyboard.key_code, + input->data.keyboard.key_flag, + input->data.keyboard.key_down + ); + } +} + +static void send_mouse_event(struct input_dev *dev, struct remote_input *input) +{ + unsigned char buttons = input->mouse_buttons; + + input_report_abs(dev, ABS_X, input->data.mouse.x); + input_report_abs(dev, ABS_Y, input->data.mouse.y); + input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT); + input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE); + input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT); + input_sync(dev); +} + +static void send_keyboard_event(struct input_dev *dev, + struct remote_input *input) +{ + unsigned int key; + unsigned short code = input->data.keyboard.key_code; + + if (code & 0xff00) + key = xlate_high[code & 0xff]; + else + key = xlate[code]; + input_report_key(dev, key, input->data.keyboard.key_down); + input_sync(dev); +} + +void ibmasm_handle_mouse_interrupt(struct service_processor *sp) +{ + unsigned long reader; + unsigned long writer; + struct remote_input input; + + reader = get_queue_reader(sp); + writer = get_queue_writer(sp); + + while (reader != writer) { + memcpy_fromio(&input, get_queue_entry(sp, reader), + sizeof(struct remote_input)); + + print_input(&input); + if (input.type == INPUT_TYPE_MOUSE) { + send_mouse_event(sp->remote.mouse_dev, &input); + } else if (input.type == INPUT_TYPE_KEYBOARD) { + send_keyboard_event(sp->remote.keybd_dev, &input); + } else + break; + + reader = advance_queue_reader(sp, reader); + writer = get_queue_writer(sp); + } +} + +int ibmasm_init_remote_input_dev(struct service_processor *sp) +{ + /* set up the mouse input device */ + struct input_dev *mouse_dev, *keybd_dev; + struct pci_dev *pdev = to_pci_dev(sp->dev); + int error = -ENOMEM; + int i; + + sp->remote.mouse_dev = mouse_dev = input_allocate_device(); + sp->remote.keybd_dev = keybd_dev = input_allocate_device(); + + if (!mouse_dev || !keybd_dev) + goto err_free_devices; + + mouse_dev->id.bustype = BUS_PCI; + mouse_dev->id.vendor = pdev->vendor; + mouse_dev->id.product = pdev->device; + mouse_dev->id.version = 1; + mouse_dev->dev.parent = sp->dev; + mouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | + BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); + set_bit(BTN_TOUCH, mouse_dev->keybit); + mouse_dev->name = "ibmasm RSA I remote mouse"; + input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0); + input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0); + + keybd_dev->id.bustype = BUS_PCI; + keybd_dev->id.vendor = pdev->vendor; + keybd_dev->id.product = pdev->device; + keybd_dev->id.version = 2; + keybd_dev->dev.parent = sp->dev; + keybd_dev->evbit[0] = BIT_MASK(EV_KEY); + keybd_dev->name = "ibmasm RSA I remote keyboard"; + + for (i = 0; i < XLATE_SIZE; i++) { + if (xlate_high[i]) + set_bit(xlate_high[i], keybd_dev->keybit); + if (xlate[i]) + set_bit(xlate[i], keybd_dev->keybit); + } + + error = input_register_device(mouse_dev); + if (error) + goto err_free_devices; + + error = input_register_device(keybd_dev); + if (error) + goto err_unregister_mouse_dev; + + enable_mouse_interrupts(sp); + + printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number); + + return 0; + + err_unregister_mouse_dev: + input_unregister_device(mouse_dev); + mouse_dev = NULL; /* so we don't try to free it again below */ + err_free_devices: + input_free_device(mouse_dev); + input_free_device(keybd_dev); + + return error; +} + +void ibmasm_free_remote_input_dev(struct service_processor *sp) +{ + disable_mouse_interrupts(sp); + input_unregister_device(sp->remote.mouse_dev); + input_unregister_device(sp->remote.keybd_dev); +} + -- cgit v1.2.3