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(). ... --- arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c | 198 ++++++++++++++++++++++ 1 file changed, 198 insertions(+) create mode 100644 arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c (limited to 'arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c') diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c new file mode 100644 index 000000000..ddf0c652a --- /dev/null +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -0,0 +1,198 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * mpc7448_hpc2.c + * + * Board setup routines for the Freescale mpc7448hpc2(taiga) platform + * + * Author: Jacob Pan + * jacob.pan@freescale.com + * Author: Xianghua Xiao + * x.xiao@freescale.com + * Maintainer: Roy Zang + * Add Flat Device Tree support fot mpc7448hpc2 board + * + * Copyright 2004-2006 Freescale Semiconductor, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#undef DEBUG +#ifdef DEBUG +#define DBG(fmt...) do { printk(fmt); } while(0) +#else +#define DBG(fmt...) do { } while(0) +#endif + +#define MPC7448HPC2_PCI_CFG_PHYS 0xfb000000 + +int mpc7448_hpc2_exclude_device(struct pci_controller *hose, + u_char bus, u_char devfn) +{ + if (bus == 0 && PCI_SLOT(devfn) == 0) + return PCIBIOS_DEVICE_NOT_FOUND; + else + return PCIBIOS_SUCCESSFUL; +} + +static void __init mpc7448_hpc2_setup_pci(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; + if (ppc_md.progress) + ppc_md.progress("mpc7448_hpc2_setup_pci():set_bridge", 0); + + /* setup PCI host bridge */ + for_each_compatible_node(np, "pci", "tsi108-pci") + tsi108_setup_pci(np, MPC7448HPC2_PCI_CFG_PHYS, 0); + + ppc_md.pci_exclude_device = mpc7448_hpc2_exclude_device; + if (ppc_md.progress) + ppc_md.progress("tsi108: resources set", 0x100); +#endif +} + +static void __init mpc7448_hpc2_setup_arch(void) +{ + tsi108_csr_vir_base = get_vir_csrbase(); + + printk(KERN_INFO "MPC7448HPC2 (TAIGA) Platform\n"); + printk(KERN_INFO + "Jointly ported by Freescale and Tundra Semiconductor\n"); + printk(KERN_INFO + "Enabling L2 cache then enabling the HID0 prefetch engine.\n"); +} + +/* + * Interrupt setup and service. Interrupts on the mpc7448_hpc2 come + * from the four external INT pins, PCI interrupts are routed via + * PCI interrupt control registers, it generates internal IRQ23 + * + * Interrupt routing on the Taiga Board: + * TSI108:PB_INT[0] -> CPU0:INT# + * TSI108:PB_INT[1] -> CPU0:MCP# + * TSI108:PB_INT[2] -> N/C + * TSI108:PB_INT[3] -> N/C + */ +static void __init mpc7448_hpc2_init_IRQ(void) +{ + struct mpic *mpic; +#ifdef CONFIG_PCI + unsigned int cascade_pci_irq; + struct device_node *tsi_pci; + struct device_node *cascade_node = NULL; +#endif + + mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, + 24, 0, + "Tsi108_PIC"); + + BUG_ON(mpic == NULL); + + mpic_assign_isu(mpic, 0, mpic->paddr + 0x100); + + mpic_init(mpic); + +#ifdef CONFIG_PCI + tsi_pci = of_find_node_by_type(NULL, "pci"); + if (tsi_pci == NULL) { + printk("%s: No tsi108 pci node found !\n", __func__); + return; + } + cascade_node = of_find_node_by_type(NULL, "pic-router"); + if (cascade_node == NULL) { + printk("%s: No tsi108 pci cascade node found !\n", __func__); + return; + } + + cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0); + DBG("%s: tsi108 cascade_pci_irq = 0x%x\n", __func__, + (u32) cascade_pci_irq); + tsi108_pci_int_init(cascade_node); + irq_set_handler_data(cascade_pci_irq, mpic); + irq_set_chained_handler(cascade_pci_irq, tsi108_irq_cascade); + + of_node_put(tsi_pci); + of_node_put(cascade_node); +#endif + /* Configure MPIC outputs to CPU0 */ + tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0); +} + +void mpc7448_hpc2_show_cpuinfo(struct seq_file *m) +{ + seq_printf(m, "vendor\t\t: Freescale Semiconductor\n"); +} + +static void __noreturn mpc7448_hpc2_restart(char *cmd) +{ + local_irq_disable(); + + /* Set exception prefix high - to the firmware */ + mtmsr(mfmsr() | MSR_IP); + isync(); + + for (;;) ; /* Spin until reset happens */ +} + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init mpc7448_hpc2_probe(void) +{ + if (!of_machine_is_compatible("mpc74xx")) + return 0; + return 1; +} + +static int mpc7448_machine_check_exception(struct pt_regs *regs) +{ + const struct exception_table_entry *entry; + + /* Are we prepared to handle this fault */ + if ((entry = search_exception_tables(regs->nip)) != NULL) { + tsi108_clear_pci_cfg_error(); + regs_set_recoverable(regs); + regs_set_return_ip(regs, extable_fixup(entry)); + return 1; + } + return 0; +} + +define_machine(mpc7448_hpc2){ + .name = "MPC7448 HPC2", + .probe = mpc7448_hpc2_probe, + .setup_arch = mpc7448_hpc2_setup_arch, + .discover_phbs = mpc7448_hpc2_setup_pci, + .init_IRQ = mpc7448_hpc2_init_IRQ, + .show_cpuinfo = mpc7448_hpc2_show_cpuinfo, + .get_irq = mpic_get_irq, + .restart = mpc7448_hpc2_restart, + .calibrate_decr = generic_calibrate_decr, + .machine_check_exception= mpc7448_machine_check_exception, + .progress = udbg_progress, +}; -- cgit v1.2.3