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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
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /Documentation/devicetree/bindings/mfd/qcom-rpm.txt
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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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+Qualcomm Resource Power Manager (RPM)
+
+This driver is used to interface with the Resource Power Manager (RPM) found in
+various Qualcomm platforms. The RPM allows each component in the system to vote
+for state of the system resources, such as clocks, regulators and bus
+frequencies.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-apq8064"
+ "qcom,rpm-msm8660"
+ "qcom,rpm-msm8960"
+ "qcom,rpm-ipq8064"
+ "qcom,rpm-mdm9615"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: base address and size of the RPM's message ram
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: three entries specifying the RPM's:
+ 1. acknowledgement interrupt
+ 2. error interrupt
+ 3. wakeup interrupt
+
+- interrupt-names:
+ Usage: required
+ Value type: <string-array>
+ Definition: must be the three strings "ack", "err" and "wakeup", in order
+
+- qcom,ipc:
+ Usage: required
+ Value type: <prop-encoded-array>
+
+ Definition: three entries specifying the outgoing ipc bit used for
+ signaling the RPM:
+ - phandle to a syscon node representing the apcs registers
+ - u32 representing offset to the register within the syscon
+ - u32 representing the ipc bit within the register
+
+
+= SUBNODES
+
+The RPM exposes resources to its subnodes. The below bindings specify the set
+of valid subnodes that can operate on these resources.
+
+== Regulators
+
+Regulator nodes are identified by their compatible:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8058-regulators"
+ "qcom,rpm-pm8901-regulators"
+ "qcom,rpm-pm8921-regulators"
+ "qcom,rpm-pm8018-regulators"
+ "qcom,rpm-smb208-regulators"
+
+- vdd_l0_l1_lvs-supply:
+- vdd_l2_l11_l12-supply:
+- vdd_l3_l4_l5-supply:
+- vdd_l6_l7-supply:
+- vdd_l8-supply:
+- vdd_l9-supply:
+- vdd_l10-supply:
+- vdd_l13_l16-supply:
+- vdd_l14_l15-supply:
+- vdd_l17_l18-supply:
+- vdd_l19_l20-supply:
+- vdd_l21-supply:
+- vdd_l22-supply:
+- vdd_l23_l24_l25-supply:
+- vdd_ncp-supply:
+- vdd_s0-supply:
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_s4-supply:
+ Usage: optional (pm8058 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+- lvs0_in-supply:
+- lvs1_in-supply:
+- lvs2_in-supply:
+- lvs3_in-supply:
+- mvs_in-supply:
+- vdd_l0-supply:
+- vdd_l1-supply:
+- vdd_l2-supply:
+- vdd_l3-supply:
+- vdd_l4-supply:
+- vdd_l5-supply:
+- vdd_l6-supply:
+- vdd_s0-supply:
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_s4-supply:
+ Usage: optional (pm8901 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+- vdd_l1_l2_l12_l18-supply:
+- vdd_l3_l15_l17-supply:
+- vdd_l4_l14-supply:
+- vdd_l5_l8_l16-supply:
+- vdd_l6_l7-supply:
+- vdd_l9_l11-supply:
+- vdd_l10_l22-supply:
+- vdd_l21_l23_l29-supply:
+- vdd_l24-supply:
+- vdd_l25-supply:
+- vdd_l26-supply:
+- vdd_l27-supply:
+- vdd_l28-supply:
+- vdd_ncp-supply:
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s4-supply:
+- vdd_s5-supply:
+- vdd_s6-supply:
+- vdd_s7-supply:
+- vdd_s8-supply:
+- vin_5vs-supply:
+- vin_lvs1_3_6-supply:
+- vin_lvs2-supply:
+- vin_lvs4_5_7-supply:
+ Usage: optional (pm8921 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+- vin_lvs1-supply:
+- vdd_l7-supply:
+- vdd_l8-supply:
+- vdd_l9_l10_l11_l12-supply:
+ Usage: optional (pm8018 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+The regulator node houses sub-nodes for each regulator within the device. Each
+sub-node is identified using the node's name, with valid values listed for each
+of the pmics below.
+
+pm8058:
+ l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15,
+ l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, s0, s1, s2, s3, s4,
+ lvs0, lvs1, ncp
+
+pm8901:
+ l0, l1, l2, l3, l4, l5, l6, s0, s1, s2, s3, s4, lvs0, lvs1, lvs2, lvs3,
+ mvs
+
+pm8921:
+ s1, s2, s3, s4, s7, s8, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
+ l12, l14, l15, l16, l17, l18, l21, l22, l23, l24, l25, l26, l27, l28,
+ l29, lvs1, lvs2, lvs3, lvs4, lvs5, lvs6, lvs7, usb-switch, hdmi-switch,
+ ncp
+
+pm8018:
+ s1, s2, s3, s4, s5, , l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
+ l12, l14, lvs1
+
+smb208:
+ s1a, s1b, s2a, s2b
+
+The content of each sub-node is defined by the standard binding for regulators -
+see regulator.txt - with additional custom properties described below:
+
+=== Switch-mode Power Supply regulator custom properties
+
+- bias-pull-down:
+ Usage: optional
+ Value type: <empty>
+ Definition: enable pull down of the regulator when inactive
+
+- qcom,switch-mode-frequency:
+ Usage: required
+ Value type: <u32>
+ Definition: Frequency (Hz) of the switch-mode power supply;
+ must be one of:
+ 19200000, 9600000, 6400000, 4800000, 3840000, 3200000,
+ 2740000, 2400000, 2130000, 1920000, 1750000, 1600000,
+ 1480000, 1370000, 1280000, 1200000
+
+- qcom,force-mode:
+ Usage: optional (default if no other qcom,force-mode is specified)
+ Value type: <u32>
+ Definition: indicates that the regulator should be forced to a
+ particular mode, valid values are:
+ QCOM_RPM_FORCE_MODE_NONE - do not force any mode
+ QCOM_RPM_FORCE_MODE_LPM - force into low power mode
+ QCOM_RPM_FORCE_MODE_HPM - force into high power mode
+ QCOM_RPM_FORCE_MODE_AUTO - allow regulator to automatically
+ select its own mode based on
+ realtime current draw, only for:
+ pm8921 smps and ftsmps
+
+- qcom,power-mode-hysteretic:
+ Usage: optional
+ Value type: <empty>
+ Definition: select that the power supply should operate in hysteretic
+ mode, instead of the default pwm mode
+
+=== Low-dropout regulator custom properties
+
+- bias-pull-down:
+ Usage: optional
+ Value type: <empty>
+ Definition: enable pull down of the regulator when inactive
+
+- qcom,force-mode:
+ Usage: optional
+ Value type: <u32>
+ Definition: indicates that the regulator should not be forced to any
+ particular mode, valid values are:
+ QCOM_RPM_FORCE_MODE_NONE - do not force any mode
+ QCOM_RPM_FORCE_MODE_LPM - force into low power mode
+ QCOM_RPM_FORCE_MODE_HPM - force into high power mode
+ QCOM_RPM_FORCE_MODE_BYPASS - set regulator to use bypass
+ mode, i.e. to act as a switch
+ and not regulate, only for:
+ pm8921 pldo, nldo and nldo1200
+
+=== Negative Charge Pump custom properties
+
+- qcom,switch-mode-frequency:
+ Usage: required
+ Value type: <u32>
+ Definition: Frequency (Hz) of the switch mode power supply;
+ must be one of:
+ 19200000, 9600000, 6400000, 4800000, 3840000, 3200000,
+ 2740000, 2400000, 2130000, 1920000, 1750000, 1600000,
+ 1480000, 1370000, 1280000, 1200000
+
+= EXAMPLE
+
+ #include <dt-bindings/mfd/qcom-rpm.h>
+
+ rpm@108000 {
+ compatible = "qcom,rpm-msm8960";
+ reg = <0x108000 0x1000>;
+ qcom,ipc = <&apcs 0x8 2>;
+
+ interrupts = <0 19 0>, <0 21 0>, <0 22 0>;
+ interrupt-names = "ack", "err", "wakeup";
+
+ regulators {
+ compatible = "qcom,rpm-pm8921-regulators";
+ vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
+
+ s1 {
+ regulator-min-microvolt = <1225000>;
+ regulator-max-microvolt = <1225000>;
+
+ bias-pull-down;
+
+ qcom,switch-mode-frequency = <3200000>;
+ };
+
+ pm8921_s4: s4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ qcom,switch-mode-frequency = <1600000>;
+ bias-pull-down;
+
+ qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>;
+ };
+ };
+ };
+