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/clk/bcm/clk-iproc.h | 214 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 drivers/clk/bcm/clk-iproc.h (limited to 'drivers/clk/bcm/clk-iproc.h') diff --git a/drivers/clk/bcm/clk-iproc.h b/drivers/clk/bcm/clk-iproc.h new file mode 100644 index 000000000..0151d6ae1 --- /dev/null +++ b/drivers/clk/bcm/clk-iproc.h @@ -0,0 +1,214 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (C) 2014 Broadcom Corporation */ + +#ifndef _CLK_IPROC_H +#define _CLK_IPROC_H + +#include +#include +#include +#include +#include +#include +#include + +#define IPROC_CLK_NAME_LEN 25 +#define IPROC_CLK_INVALID_OFFSET 0xffffffff +#define bit_mask(width) ((1 << (width)) - 1) + +/* clocks that should not be disabled at runtime */ +#define IPROC_CLK_AON BIT(0) + +/* PLL that requires gating through ASIU */ +#define IPROC_CLK_PLL_ASIU BIT(1) + +/* PLL that has fractional part of the NDIV */ +#define IPROC_CLK_PLL_HAS_NDIV_FRAC BIT(2) + +/* + * Some of the iProc PLL/clocks may have an ASIC bug that requires read back + * of the same register following the write to flush the write transaction into + * the intended register + */ +#define IPROC_CLK_NEEDS_READ_BACK BIT(3) + +/* + * Some PLLs require the PLL SW override bit to be set before changes can be + * applied to the PLL + */ +#define IPROC_CLK_PLL_NEEDS_SW_CFG BIT(4) + +/* + * Some PLLs use a different way to control clock power, via the PWRDWN bit in + * the PLL control register + */ +#define IPROC_CLK_EMBED_PWRCTRL BIT(5) + +/* + * Some PLLs have separate registers for Status and Control. Identify this to + * let the driver know if additional registers need to be used + */ +#define IPROC_CLK_PLL_SPLIT_STAT_CTRL BIT(6) + +/* + * Some PLLs have an additional divide by 2 in master clock calculation; + * MCLK = VCO_freq / (Mdiv * 2). Identify this to let the driver know + * of modified calculations + */ +#define IPROC_CLK_MCLK_DIV_BY_2 BIT(7) + +/* + * Some PLLs provide a look up table for the leaf clock frequencies and + * auto calculates VCO frequency parameters based on the provided leaf + * clock frequencies. They have a user mode that allows the divider + * controls to be determined by the user + */ +#define IPROC_CLK_PLL_USER_MODE_ON BIT(8) + +/* + * Some PLLs have an active low reset + */ +#define IPROC_CLK_PLL_RESET_ACTIVE_LOW BIT(9) + +/* + * Calculate the PLL parameters are runtime, instead of using table + */ +#define IPROC_CLK_PLL_CALC_PARAM BIT(10) + +/* + * Parameters for VCO frequency configuration + * + * VCO frequency = + * ((ndiv_int + ndiv_frac / 2^20) * (ref frequency / pdiv) + */ +struct iproc_pll_vco_param { + unsigned long rate; + unsigned int ndiv_int; + unsigned int ndiv_frac; + unsigned int pdiv; +}; + +struct iproc_clk_reg_op { + unsigned int offset; + unsigned int shift; + unsigned int width; +}; + +/* + * Clock gating control at the top ASIU level + */ +struct iproc_asiu_gate { + unsigned int offset; + unsigned int en_shift; +}; + +/* + * Control of powering on/off of a PLL + * + * Before powering off a PLL, input isolation (ISO) needs to be enabled + */ +struct iproc_pll_aon_pwr_ctrl { + unsigned int offset; + unsigned int pwr_width; + unsigned int pwr_shift; + unsigned int iso_shift; +}; + +/* + * Control of the PLL reset + */ +struct iproc_pll_reset_ctrl { + unsigned int offset; + unsigned int reset_shift; + unsigned int p_reset_shift; +}; + +/* + * Control of the Ki, Kp, and Ka parameters + */ +struct iproc_pll_dig_filter_ctrl { + unsigned int offset; + unsigned int ki_shift; + unsigned int ki_width; + unsigned int kp_shift; + unsigned int kp_width; + unsigned int ka_shift; + unsigned int ka_width; +}; + +/* + * To enable SW control of the PLL + */ +struct iproc_pll_sw_ctrl { + unsigned int offset; + unsigned int shift; +}; + +struct iproc_pll_vco_ctrl { + unsigned int u_offset; + unsigned int l_offset; +}; + +/* + * Main PLL control parameters + */ +struct iproc_pll_ctrl { + unsigned long flags; + struct iproc_pll_aon_pwr_ctrl aon; + struct iproc_asiu_gate asiu; + struct iproc_pll_reset_ctrl reset; + struct iproc_pll_dig_filter_ctrl dig_filter; + struct iproc_pll_sw_ctrl sw_ctrl; + struct iproc_clk_reg_op ndiv_int; + struct iproc_clk_reg_op ndiv_frac; + struct iproc_clk_reg_op pdiv; + struct iproc_pll_vco_ctrl vco_ctrl; + struct iproc_clk_reg_op status; + struct iproc_clk_reg_op macro_mode; +}; + +/* + * Controls enabling/disabling a PLL derived clock + */ +struct iproc_clk_enable_ctrl { + unsigned int offset; + unsigned int enable_shift; + unsigned int hold_shift; + unsigned int bypass_shift; +}; + +/* + * Main clock control parameters for clocks derived from the PLLs + */ +struct iproc_clk_ctrl { + unsigned int channel; + unsigned long flags; + struct iproc_clk_enable_ctrl enable; + struct iproc_clk_reg_op mdiv; +}; + +/* + * Divisor of the ASIU clocks + */ +struct iproc_asiu_div { + unsigned int offset; + unsigned int en_shift; + unsigned int high_shift; + unsigned int high_width; + unsigned int low_shift; + unsigned int low_width; +}; + +void iproc_armpll_setup(struct device_node *node); +void iproc_pll_clk_setup(struct device_node *node, + const struct iproc_pll_ctrl *pll_ctrl, + const struct iproc_pll_vco_param *vco, + unsigned int num_vco_entries, + const struct iproc_clk_ctrl *clk_ctrl, + unsigned int num_clks); +void iproc_asiu_setup(struct device_node *node, + const struct iproc_asiu_div *div, + const struct iproc_asiu_gate *gate, + unsigned int num_clks); + +#endif /* _CLK_IPROC_H */ -- cgit v1.2.3