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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
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treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ti,gpmc-child.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments GPMC Bus Child Nodes
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ This binding is meant for the child nodes of the GPMC node. The node
+ represents any device connected to the GPMC bus. It may be a Flash chip,
+ RAM chip or Ethernet controller, etc. These properties are meant for
+ configuring the GPMC settings/timings and will accompany the bindings
+ supported by the respective device.
+
+properties:
+ reg: true
+
+# GPMC Timing properties for child nodes. All are optional and default to 0.
+ gpmc,sync-clk-ps:
+ description: Minimum clock period for synchronous mode
+ default: 0
+
+# Chip-select signal timings corresponding to GPMC_CONFIG2:
+ gpmc,cs-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,cs-rd-off-ns:
+ description: Read deassertion time
+ default: 0
+
+ gpmc,cs-wr-off-ns:
+ description: Write deassertion time
+ default: 0
+
+# ADV signal timings corresponding to GPMC_CONFIG3:
+ gpmc,adv-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,adv-rd-off-ns:
+ description: Read deassertion time
+ default: 0
+
+ gpmc,adv-wr-off-ns:
+ description: Write deassertion time
+ default: 0
+
+ gpmc,adv-aad-mux-on-ns:
+ description: Assertion time for AAD
+ default: 0
+
+ gpmc,adv-aad-mux-rd-off-ns:
+ description: Read deassertion time for AAD
+ default: 0
+
+ gpmc,adv-aad-mux-wr-off-ns:
+ description: Write deassertion time for AAD
+ default: 0
+
+# WE signals timings corresponding to GPMC_CONFIG4:
+ gpmc,we-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,we-off-ns:
+ description: Deassertion time
+ default: 0
+
+# OE signals timings corresponding to GPMC_CONFIG4:
+ gpmc,oe-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,oe-off-ns:
+ description: Deassertion time
+ default: 0
+
+ gpmc,oe-aad-mux-on-ns:
+ description: Assertion time for AAD
+ default: 0
+
+ gpmc,oe-aad-mux-off-ns:
+ description: Deassertion time for AAD
+ default: 0
+
+# Access time and cycle time timings (in nanoseconds) corresponding to
+# GPMC_CONFIG5:
+ gpmc,page-burst-access-ns:
+ description: Multiple access word delay
+ default: 0
+
+ gpmc,access-ns:
+ description: Start-cycle to first data valid delay
+ default: 0
+
+ gpmc,rd-cycle-ns:
+ description: Total read cycle time
+ default: 0
+
+ gpmc,wr-cycle-ns:
+ description: Total write cycle time
+ default: 0
+
+ gpmc,bus-turnaround-ns:
+ description: Turn-around time between successive accesses
+ default: 0
+
+ gpmc,cycle2cycle-delay-ns:
+ description: Delay between chip-select pulses
+ default: 0
+
+ gpmc,clk-activation-ns:
+ description: GPMC clock activation time
+ default: 0
+
+ gpmc,wait-monitoring-ns:
+ description: Start of wait monitoring with regard to valid data
+ default: 0
+
+# Boolean timing parameters. If property is present, parameter is enabled
+# otherwise disabled.
+ gpmc,adv-extra-delay:
+ description: ADV signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,cs-extra-delay:
+ description: CS signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,cycle2cycle-diffcsen:
+ description: |
+ Add "cycle2cycle-delay" between successive accesses
+ to a different CS
+ type: boolean
+
+ gpmc,cycle2cycle-samecsen:
+ description: |
+ Add "cycle2cycle-delay" between successive accesses
+ to the same CS
+ type: boolean
+
+ gpmc,oe-extra-delay:
+ description: OE signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,we-extra-delay:
+ description: WE signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,time-para-granularity:
+ description: Multiply all access times by 2
+ type: boolean
+
+# The following two properties are applicable only to OMAP3+ and AM335x:
+ gpmc,wr-access-ns:
+ description: |
+ In synchronous write mode, for single or
+ burst accesses, defines the number of
+ GPMC_FCLK cycles from start access time
+ to the GPMC_CLK rising edge used by the
+ memory device for the first data capture.
+ default: 0
+
+ gpmc,wr-data-mux-bus-ns:
+ description: |
+ In address-data multiplex mode, specifies
+ the time when the first data is driven on
+ the address-data bus.
+ default: 0
+
+# GPMC chip-select settings properties for child nodes. All are optional.
+ gpmc,burst-length:
+ description: Page/burst length.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 4, 8, 16]
+ default: 0
+
+ gpmc,burst-wrap:
+ description: Enables wrap bursting
+ type: boolean
+
+ gpmc,burst-read:
+ description: Enables read page/burst mode
+ type: boolean
+
+ gpmc,burst-write:
+ description: Enables write page/burst mode
+ type: boolean
+
+ gpmc,device-width:
+ description: |
+ Total width of device(s) connected to a GPMC
+ chip-select in bytes. The GPMC supports 8-bit
+ and 16-bit devices and so this property must be
+ 1 or 2.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2]
+ default: 1
+
+ gpmc,mux-add-data:
+ description: |
+ Address and data multiplexing configuration.
+ Valid values are
+ 0 for Non multiplexed mode
+ 1 for address-address-data multiplexing mode and
+ 2 for address-data multiplexing mode.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ gpmc,sync-read:
+ description: |
+ Enables synchronous read. Defaults to asynchronous
+ is this is not set.
+ type: boolean
+
+ gpmc,sync-write:
+ description: |
+ Enables synchronous writes. Defaults to asynchronous
+ is this is not set.
+ type: boolean
+
+ gpmc,wait-pin:
+ description: |
+ Wait-pin used by client. Must be less than "gpmc,num-waitpins".
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,wait-pin-polarity:
+ description: |
+ Set the desired polarity for the selected wait pin.
+ 0 for active low, 1 for active high.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+
+ gpmc,wait-on-read:
+ description: Enables wait monitoring on reads.
+ type: boolean
+
+ gpmc,wait-on-write:
+ description: Enables wait monitoring on writes.
+ type: boolean
+
+required:
+ - reg
+
+# the GPMC child will have its own native properties
+additionalProperties: true