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/acpi/acpica/evmisc.c | 273 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 drivers/acpi/acpica/evmisc.c (limited to 'drivers/acpi/acpica/evmisc.c') diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c new file mode 100644 index 000000000..6172cddc1 --- /dev/null +++ b/drivers/acpi/acpica/evmisc.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/****************************************************************************** + * + * Module Name: evmisc - Miscellaneous event manager support functions + * + * Copyright (C) 2000 - 2022, Intel Corp. + * + *****************************************************************************/ + +#include +#include "accommon.h" +#include "acevents.h" +#include "acnamesp.h" + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evmisc") + +/* Local prototypes */ +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_is_notify_object + * + * PARAMETERS: node - Node to check + * + * RETURN: TRUE if notifies allowed on this object + * + * DESCRIPTION: Check type of node for a object that supports notifies. + * + * TBD: This could be replaced by a flag bit in the node. + * + ******************************************************************************/ + +u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node) +{ + + switch (node->type) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + /* + * These are the ONLY objects that can receive ACPI notifications + */ + return (TRUE); + + default: + + return (FALSE); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_queue_notify_request + * + * PARAMETERS: node - NS node for the notified object + * notify_value - Value from the Notify() request + * + * RETURN: Status + * + * DESCRIPTION: Dispatch a device notification event to a previously + * installed handler. + * + ******************************************************************************/ + +acpi_status +acpi_ev_queue_notify_request(struct acpi_namespace_node *node, u32 notify_value) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_list_head = NULL; + union acpi_generic_state *info; + u8 handler_list_id = 0; + acpi_status status = AE_OK; + + ACPI_FUNCTION_NAME(ev_queue_notify_request); + + /* Are Notifies allowed on this object? */ + + if (!acpi_ev_is_notify_object(node)) { + return (AE_TYPE); + } + + /* Get the correct notify list type (System or Device) */ + + if (notify_value <= ACPI_MAX_SYS_NOTIFY) { + handler_list_id = ACPI_SYSTEM_HANDLER_LIST; + } else { + handler_list_id = ACPI_DEVICE_HANDLER_LIST; + } + + /* Get the notify object attached to the namespace Node */ + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + + /* We have an attached object, Get the correct handler list */ + + handler_list_head = + obj_desc->common_notify.notify_list[handler_list_id]; + } + + /* + * If there is no notify handler (Global or Local) + * for this object, just ignore the notify + */ + if (!acpi_gbl_global_notify[handler_list_id].handler + && !handler_list_head) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "No notify handler for Notify, ignoring (%4.4s, %X) node %p\n", + acpi_ut_get_node_name(node), notify_value, + node)); + + return (AE_OK); + } + + /* Setup notify info and schedule the notify dispatcher */ + + info = acpi_ut_create_generic_state(); + if (!info) { + return (AE_NO_MEMORY); + } + + info->common.descriptor_type = ACPI_DESC_TYPE_STATE_NOTIFY; + + info->notify.node = node; + info->notify.value = (u16)notify_value; + info->notify.handler_list_id = handler_list_id; + info->notify.handler_list_head = handler_list_head; + info->notify.global = &acpi_gbl_global_notify[handler_list_id]; + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n", + acpi_ut_get_node_name(node), + acpi_ut_get_type_name(node->type), notify_value, + acpi_ut_get_notify_name(notify_value, ACPI_TYPE_ANY), + node)); + + status = acpi_os_execute(OSL_NOTIFY_HANDLER, + acpi_ev_notify_dispatch, info); + if (ACPI_FAILURE(status)) { + acpi_ut_delete_generic_state(info); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_notify_dispatch + * + * PARAMETERS: context - To be passed to the notify handler + * + * RETURN: None. + * + * DESCRIPTION: Dispatch a device notification event to a previously + * installed handler. + * + ******************************************************************************/ + +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) +{ + union acpi_generic_state *info = (union acpi_generic_state *)context; + union acpi_operand_object *handler_obj; + + ACPI_FUNCTION_ENTRY(); + + /* Invoke a global notify handler if installed */ + + if (info->notify.global->handler) { + info->notify.global->handler(info->notify.node, + info->notify.value, + info->notify.global->context); + } + + /* Now invoke the local notify handler(s) if any are installed */ + + handler_obj = info->notify.handler_list_head; + while (handler_obj) { + handler_obj->notify.handler(info->notify.node, + info->notify.value, + handler_obj->notify.context); + + handler_obj = + handler_obj->notify.next[info->notify.handler_list_id]; + } + + /* All done with the info object */ + + acpi_ut_delete_generic_state(info); +} + +#if (!ACPI_REDUCED_HARDWARE) +/****************************************************************************** + * + * FUNCTION: acpi_ev_terminate + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: Disable events and free memory allocated for table storage. + * + ******************************************************************************/ + +void acpi_ev_terminate(void) +{ + u32 i; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_terminate); + + if (acpi_gbl_events_initialized) { + /* + * Disable all event-related functionality. In all cases, on error, + * print a message but obviously we don't abort. + */ + + /* Disable all fixed events */ + + for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + status = acpi_disable_event(i, 0); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not disable fixed event %u", + (u32) i)); + } + } + + /* Disable all GPEs in all GPE blocks */ + + status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not disable GPEs in GPE block")); + } + + status = acpi_ev_remove_global_lock_handler(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not remove Global Lock handler")); + } + + acpi_gbl_events_initialized = FALSE; + } + + /* Remove SCI handlers */ + + status = acpi_ev_remove_all_sci_handlers(); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); + } + + /* Deallocate all handler objects installed within GPE info structs */ + + status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not delete GPE handlers")); + } + + /* Return to original mode if necessary */ + + if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) { + status = acpi_disable(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "AcpiDisable failed")); + } + } + return_VOID; +} + +#endif /* !ACPI_REDUCED_HARDWARE */ -- cgit v1.2.3