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/hwtracing/coresight/Kconfig | 204 ++++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 drivers/hwtracing/coresight/Kconfig (limited to 'drivers/hwtracing/coresight/Kconfig') diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig new file mode 100644 index 000000000..45c1eb5df --- /dev/null +++ b/drivers/hwtracing/coresight/Kconfig @@ -0,0 +1,204 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Coresight configuration +# +menuconfig CORESIGHT + tristate "CoreSight Tracing Support" + depends on ARM || ARM64 + depends on OF || ACPI + select ARM_AMBA + select PERF_EVENTS + select CONFIGFS_FS + help + This framework provides a kernel interface for the CoreSight debug + and trace drivers to register themselves with. It's intended to build + a topological view of the CoreSight components based on a DT + specification and configure the right series of components when a + trace source gets enabled. + + To compile this driver as a module, choose M here: the + module will be called coresight. + +if CORESIGHT +config CORESIGHT_LINKS_AND_SINKS + tristate "CoreSight Link and Sink drivers" + help + This enables support for CoreSight link and sink drivers that are + responsible for transporting and collecting the trace data + respectively. Link and sinks are dynamically aggregated with a trace + entity at run time to form a complete trace path. + + To compile these drivers as modules, choose M here: the + modules will be called coresight-funnel and coresight-replicator. + +config CORESIGHT_LINK_AND_SINK_TMC + tristate "Coresight generic TMC driver" + + depends on CORESIGHT_LINKS_AND_SINKS + help + This enables support for the Trace Memory Controller driver. + Depending on its configuration the device can act as a link (embedded + trace router - ETR) or sink (embedded trace FIFO). The driver + complies with the generic implementation of the component without + special enhancement or added features. + + To compile this driver as a module, choose M here: the + module will be called coresight-tmc. + +config CORESIGHT_CATU + tristate "Coresight Address Translation Unit (CATU) driver" + depends on CORESIGHT_LINK_AND_SINK_TMC + help + Enable support for the Coresight Address Translation Unit (CATU). + CATU supports a scatter gather table of 4K pages, with forward/backward + lookup. CATU helps TMC ETR to use a large physically non-contiguous trace + buffer by translating the addresses used by ETR to the physical address + by looking up the provided table. CATU can also be used in pass-through + mode where the address is not translated. + + To compile this driver as a module, choose M here: the + module will be called coresight-catu. + +config CORESIGHT_SINK_TPIU + tristate "Coresight generic TPIU driver" + depends on CORESIGHT_LINKS_AND_SINKS + help + This enables support for the Trace Port Interface Unit driver, + responsible for bridging the gap between the on-chip coresight + components and a trace for bridging the gap between the on-chip + coresight components and a trace port collection engine, typically + connected to an external host for use case capturing more traces than + the on-board coresight memory can handle. + + To compile this driver as a module, choose M here: the + module will be called coresight-tpiu. + +config CORESIGHT_SINK_ETBV10 + tristate "Coresight ETBv1.0 driver" + depends on CORESIGHT_LINKS_AND_SINKS + help + This enables support for the Embedded Trace Buffer version 1.0 driver + that complies with the generic implementation of the component without + special enhancement or added features. + + To compile this driver as a module, choose M here: the + module will be called coresight-etb10. + +config CORESIGHT_SOURCE_ETM3X + tristate "CoreSight Embedded Trace Macrocell 3.x driver" + depends on !ARM64 + select CORESIGHT_LINKS_AND_SINKS + help + This driver provides support for processor ETM3.x and PTM1.x modules, + which allows tracing the instructions that a processor is executing + This is primarily useful for instruction level tracing. Depending + the ETM version data tracing may also be available. + + To compile this driver as a module, choose M here: the + module will be called coresight-etm3x. + +config CORESIGHT_SOURCE_ETM4X + tristate "CoreSight ETMv4.x / ETE driver" + depends on ARM64 + select CORESIGHT_LINKS_AND_SINKS + select PID_IN_CONTEXTIDR + help + This driver provides support for the CoreSight Embedded Trace Macrocell + version 4.x and the Embedded Trace Extensions (ETE). Both are CPU tracer + modules, tracing the instructions that a processor is executing. This is + primarily useful for instruction level tracing. + + To compile this driver as a module, choose M here: the + module will be called coresight-etm4x. + +config ETM4X_IMPDEF_FEATURE + bool "Control implementation defined overflow support in ETM 4.x driver" + depends on CORESIGHT_SOURCE_ETM4X + help + This control provides implementation define control for CoreSight + ETM 4.x tracer module that can't reduce commit rate automatically. + This avoids overflow between the ETM tracer module and the cpu core. + +config CORESIGHT_STM + tristate "CoreSight System Trace Macrocell driver" + depends on (ARM && !(CPU_32v3 || CPU_32v4 || CPU_32v4T)) || ARM64 + select CORESIGHT_LINKS_AND_SINKS + select STM + help + This driver provides support for hardware assisted software + instrumentation based tracing. This is primarily used for + logging useful software events or data coming from various entities + in the system, possibly running different OSs + + To compile this driver as a module, choose M here: the + module will be called coresight-stm. + +config CORESIGHT_CPU_DEBUG + tristate "CoreSight CPU Debug driver" + depends on ARM || ARM64 + depends on DEBUG_FS + help + This driver provides support for coresight debugging module. This + is primarily used to dump sample-based profiling registers when + system triggers panic, the driver will parse context registers so + can quickly get to know program counter (PC), secure state, + exception level, etc. Before use debugging functionality, platform + needs to ensure the clock domain and power domain are enabled + properly, please refer Documentation/trace/coresight/coresight-cpu-debug.rst + for detailed description and the example for usage. + + To compile this driver as a module, choose M here: the + module will be called coresight-cpu-debug. + +config CORESIGHT_CPU_DEBUG_DEFAULT_ON + bool "Enable CoreSight CPU Debug by default" + depends on CORESIGHT_CPU_DEBUG + help + Say Y here to enable the CoreSight Debug panic-debug by default. This + can also be enabled via debugfs, but this ensures the debug feature + is enabled as early as possible. + + Has the same effect as setting coresight_cpu_debug.enable=1 on the + kernel command line. + + Say N if unsure. + +config CORESIGHT_CTI + tristate "CoreSight Cross Trigger Interface (CTI) driver" + depends on ARM || ARM64 + help + This driver provides support for CoreSight CTI and CTM components. + These provide hardware triggering events between CoreSight trace + source and sink components. These can be used to halt trace or + inject events into the trace stream. CTI also provides a software + control to trigger the same halt events. This can provide fast trace + halt compared to disabling sources and sinks normally in driver + software. + + To compile this driver as a module, choose M here: the + module will be called coresight-cti. + +config CORESIGHT_CTI_INTEGRATION_REGS + bool "Access CTI CoreSight Integration Registers" + depends on CORESIGHT_CTI + help + This option adds support for the CoreSight integration registers on + this device. The integration registers allow the exploration of the + CTI trigger connections between this and other devices.These + registers are not used in normal operation and can leave devices in + an inconsistent state. + +config CORESIGHT_TRBE + tristate "Trace Buffer Extension (TRBE) driver" + depends on ARM64 && CORESIGHT_SOURCE_ETM4X + help + This driver provides support for percpu Trace Buffer Extension (TRBE). + TRBE always needs to be used along with its corresponding percpu ETE + component. ETE generates trace data which is then captured with TRBE. + Unlike traditional sink devices, TRBE is a CPU feature accessible via + system registers. But its explicit dependency with trace unit (ETE) + requires it to be plugged in as a coresight sink device. + + To compile this driver as a module, choose M here: the module will be + called coresight-trbe. +endif -- cgit v1.2.3