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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/clock/mvebu-gated-clock.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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+* Gated Clock bindings for Marvell EBU SoCs
+
+Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some
+peripheral clocks to be gated to save some power. The clock consumer
+should specify the desired clock by having the clock ID in its
+"clocks" phandle cell. The clock ID is directly mapped to the
+corresponding clock gating control bit in HW to ease manual clock
+lookup in datasheet.
+
+The following is a list of provided IDs for Armada 370:
+ID Clock Peripheral
+-----------------------------------
+0 Audio AC97 Cntrl
+1 pex0_en PCIe 0 Clock out
+2 pex1_en PCIe 1 Clock out
+3 ge1 Gigabit Ethernet 1
+4 ge0 Gigabit Ethernet 0
+5 pex0 PCIe Cntrl 0
+9 pex1 PCIe Cntrl 1
+15 sata0 SATA Host 0
+17 sdio SDHCI Host
+23 crypto CESA (crypto engine)
+25 tdm Time Division Mplx
+28 ddr DDR Cntrl
+30 sata1 SATA Host 0
+
+The following is a list of provided IDs for Armada 375:
+ID Clock Peripheral
+-----------------------------------
+2 mu Management Unit
+3 pp Packet Processor
+4 ptp PTP
+5 pex0 PCIe 0 Clock out
+6 pex1 PCIe 1 Clock out
+8 audio Audio Cntrl
+11 nd_clk Nand Flash Cntrl
+14 sata0_link SATA 0 Link
+15 sata0_core SATA 0 Core
+16 usb3 USB3 Host
+17 sdio SDHCI Host
+18 usb USB Host
+19 gop Gigabit Ethernet MAC
+20 sata1_link SATA 1 Link
+21 sata1_core SATA 1 Core
+22 xor0 XOR DMA 0
+23 xor1 XOR DMA 0
+24 copro Coprocessor
+25 tdm Time Division Mplx
+28 crypto0_enc Cryptographic Unit Port 0 Encryption
+29 crypto0_core Cryptographic Unit Port 0 Core
+30 crypto1_enc Cryptographic Unit Port 1 Encryption
+31 crypto1_core Cryptographic Unit Port 1 Core
+
+The following is a list of provided IDs for Armada 380/385:
+ID Clock Peripheral
+-----------------------------------
+0 audio Audio
+2 ge2 Gigabit Ethernet 2
+3 ge1 Gigabit Ethernet 1
+4 ge0 Gigabit Ethernet 0
+5 pex1 PCIe 1
+6 pex2 PCIe 2
+7 pex3 PCIe 3
+8 pex0 PCIe 0
+9 usb3h0 USB3 Host 0
+10 usb3h1 USB3 Host 1
+11 usb3d USB3 Device
+13 bm Buffer Management
+14 crypto0z Cryptographic 0 Z
+15 sata0 SATA 0
+16 crypto1z Cryptographic 1 Z
+17 sdio SDIO
+18 usb2 USB 2
+21 crypto1 Cryptographic 1
+22 xor0 XOR 0
+23 crypto0 Cryptographic 0
+25 tdm Time Division Multiplexing
+28 xor1 XOR 1
+30 sata1 SATA 1
+
+The following is a list of provided IDs for Armada 39x:
+ID Clock Peripheral
+-----------------------------------
+5 pex1 PCIe 1
+6 pex2 PCIe 2
+7 pex3 PCIe 3
+8 pex0 PCIe 0
+9 usb3h0 USB3 Host 0
+10 usb3h1 USB3 Host 1
+15 sata0 SATA 0
+17 sdio SDIO
+22 xor0 XOR 0
+28 xor1 XOR 1
+
+The following is a list of provided IDs for Armada XP:
+ID Clock Peripheral
+-----------------------------------
+0 audio Audio Cntrl
+1 ge3 Gigabit Ethernet 3
+2 ge2 Gigabit Ethernet 2
+3 ge1 Gigabit Ethernet 1
+4 ge0 Gigabit Ethernet 0
+5 pex0 PCIe Cntrl 0
+6 pex1 PCIe Cntrl 1
+7 pex2 PCIe Cntrl 2
+8 pex3 PCIe Cntrl 3
+13 bp
+14 sata0lnk
+15 sata0 SATA Host 0
+16 lcd LCD Cntrl
+17 sdio SDHCI Host
+18 usb0 USB Host 0
+19 usb1 USB Host 1
+20 usb2 USB Host 2
+22 xor0 XOR DMA 0
+23 crypto CESA engine
+25 tdm Time Division Mplx
+28 xor1 XOR DMA 1
+29 sata1lnk
+30 sata1 SATA Host 1
+
+The following is a list of provided IDs for 98dx3236:
+ID Clock Peripheral
+-----------------------------------
+3 ge1 Gigabit Ethernet 1
+4 ge0 Gigabit Ethernet 0
+5 pex0 PCIe Cntrl 0
+17 sdio SDHCI Host
+18 usb0 USB Host 0
+22 xor0 XOR DMA 0
+
+The following is a list of provided IDs for Dove:
+ID Clock Peripheral
+-----------------------------------
+0 usb0 USB Host 0
+1 usb1 USB Host 1
+2 ge Gigabit Ethernet
+3 sata SATA Host
+4 pex0 PCIe Cntrl 0
+5 pex1 PCIe Cntrl 1
+8 sdio0 SDHCI Host 0
+9 sdio1 SDHCI Host 1
+10 nand NAND Cntrl
+11 camera Camera Cntrl
+12 i2s0 I2S Cntrl 0
+13 i2s1 I2S Cntrl 1
+15 crypto CESA engine
+21 ac97 AC97 Cntrl
+22 pdma Peripheral DMA
+23 xor0 XOR DMA 0
+24 xor1 XOR DMA 1
+30 gephy Gigabit Ethernel PHY
+Note: gephy(30) is implemented as a parent clock of ge(2)
+
+The following is a list of provided IDs for Kirkwood:
+ID Clock Peripheral
+-----------------------------------
+0 ge0 Gigabit Ethernet 0
+2 pex0 PCIe Cntrl 0
+3 usb0 USB Host 0
+4 sdio SDIO Cntrl
+5 tsu Transp. Stream Unit
+6 dunit SDRAM Cntrl
+7 runit Runit
+8 xor0 XOR DMA 0
+9 audio I2S Cntrl 0
+14 sata0 SATA Host 0
+15 sata1 SATA Host 1
+16 xor1 XOR DMA 1
+17 crypto CESA engine
+18 pex1 PCIe Cntrl 1
+19 ge1 Gigabit Ethernet 1
+20 tdm Time Division Mplx
+
+Required properties:
+- compatible : shall be one of the following:
+ "marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating
+ "marvell,armada-375-gating-clock" - for Armada 375 SoC clock gating
+ "marvell,armada-380-gating-clock" - for Armada 380/385 SoC clock gating
+ "marvell,armada-390-gating-clock" - for Armada 39x SoC clock gating
+ "marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating
+ "marvell,mv98dx3236-gating-clock" - for 98dx3236 SoC clock gating
+ "marvell,dove-gating-clock" - for Dove SoC clock gating
+ "marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating
+- reg : shall be the register address of the Clock Gating Control register
+- #clock-cells : from common clock binding; shall be set to 1
+
+Optional properties:
+- clocks : default parent clock phandle (e.g. tclk)
+
+Example:
+
+gate_clk: clock-gating-control@d0038 {
+ compatible = "marvell,dove-gating-clock";
+ reg = <0xd0038 0x4>;
+ /* default parent clock is tclk */
+ clocks = <&core_clk 0>;
+ #clock-cells = <1>;
+};
+
+sdio0: sdio@92000 {
+ compatible = "marvell,dove-sdhci";
+ /* get clk gate bit 8 (sdio0) */
+ clocks = <&gate_clk 8>;
+};