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/cell/setup.c | 274 ++++++++++++++++++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100644 arch/powerpc/platforms/cell/setup.c (limited to 'arch/powerpc/platforms/cell/setup.c') diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c new file mode 100644 index 000000000..47eaf7534 --- /dev/null +++ b/arch/powerpc/platforms/cell/setup.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * linux/arch/powerpc/platforms/cell/cell_setup.c + * + * Copyright (C) 1995 Linus Torvalds + * Adapted from 'alpha' version by Gary Thomas + * Modified by Cort Dougan (cort@cs.nmt.edu) + * Modified by PPC64 Team, IBM Corp + * Modified by Cell Team, IBM Deutschland Entwicklung GmbH + */ +#undef DEBUG + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cell.h" +#include "interrupt.h" +#include "pervasive.h" +#include "ras.h" + +#ifdef DEBUG +#define DBG(fmt...) udbg_printf(fmt) +#else +#define DBG(fmt...) +#endif + +static void cell_show_cpuinfo(struct seq_file *m) +{ + struct device_node *root; + const char *model = ""; + + root = of_find_node_by_path("/"); + if (root) + model = of_get_property(root, "model", NULL); + seq_printf(m, "machine\t\t: CHRP %s\n", model); + of_node_put(root); +} + +static void cell_progress(char *s, unsigned short hex) +{ + printk("*** %04x : %s\n", hex, s ? s : ""); +} + +static void cell_fixup_pcie_rootcomplex(struct pci_dev *dev) +{ + struct pci_controller *hose; + const char *s; + int i; + + if (!machine_is(cell)) + return; + + /* We're searching for a direct child of the PHB */ + if (dev->bus->self != NULL || dev->devfn != 0) + return; + + hose = pci_bus_to_host(dev->bus); + if (hose == NULL) + return; + + /* Only on PCIE */ + if (!of_device_is_compatible(hose->dn, "pciex")) + return; + + /* And only on axon */ + s = of_get_property(hose->dn, "model", NULL); + if (!s || strcmp(s, "Axon") != 0) + return; + + for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) { + dev->resource[i].start = dev->resource[i].end = 0; + dev->resource[i].flags = 0; + } + + printk(KERN_DEBUG "PCI: Hiding resources on Axon PCIE RC %s\n", + pci_name(dev)); +} +DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, cell_fixup_pcie_rootcomplex); + +static int cell_setup_phb(struct pci_controller *phb) +{ + const char *model; + struct device_node *np; + + int rc = rtas_setup_phb(phb); + if (rc) + return rc; + + phb->controller_ops = cell_pci_controller_ops; + + np = phb->dn; + model = of_get_property(np, "model", NULL); + if (model == NULL || !of_node_name_eq(np, "pci")) + return 0; + + /* Setup workarounds for spider */ + if (strcmp(model, "Spider")) + return 0; + + iowa_register_bus(phb, &spiderpci_ops, &spiderpci_iowa_init, + (void *)SPIDER_PCI_REG_BASE); + return 0; +} + +static const struct of_device_id cell_bus_ids[] __initconst = { + { .type = "soc", }, + { .compatible = "soc", }, + { .type = "spider", }, + { .type = "axon", }, + { .type = "plb5", }, + { .type = "plb4", }, + { .type = "opb", }, + { .type = "ebc", }, + {}, +}; + +static int __init cell_publish_devices(void) +{ + struct device_node *root = of_find_node_by_path("/"); + struct device_node *np; + int node; + + /* Publish OF platform devices for southbridge IOs */ + of_platform_bus_probe(NULL, cell_bus_ids, NULL); + + /* On spider based blades, we need to manually create the OF + * platform devices for the PCI host bridges + */ + for_each_child_of_node(root, np) { + if (!of_node_is_type(np, "pci") && !of_node_is_type(np, "pciex")) + continue; + of_platform_device_create(np, NULL, NULL); + } + + of_node_put(root); + + /* There is no device for the MIC memory controller, thus we create + * a platform device for it to attach the EDAC driver to. + */ + for_each_online_node(node) { + if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL) + continue; + platform_device_register_simple("cbe-mic", node, NULL, 0); + } + + return 0; +} +machine_subsys_initcall(cell, cell_publish_devices); + +static void __init mpic_init_IRQ(void) +{ + struct device_node *dn; + struct mpic *mpic; + + for_each_node_by_name(dn, "interrupt-controller") { + if (!of_device_is_compatible(dn, "CBEA,platform-open-pic")) + continue; + + /* The MPIC driver will get everything it needs from the + * device-tree, just pass 0 to all arguments + */ + mpic = mpic_alloc(dn, 0, MPIC_SECONDARY | MPIC_NO_RESET, + 0, 0, " MPIC "); + if (mpic == NULL) + continue; + mpic_init(mpic); + } +} + + +static void __init cell_init_irq(void) +{ + iic_init_IRQ(); + spider_init_IRQ(); + mpic_init_IRQ(); +} + +static void __init cell_set_dabrx(void) +{ + mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER); +} + +static void __init cell_setup_arch(void) +{ +#ifdef CONFIG_SPU_BASE + spu_priv1_ops = &spu_priv1_mmio_ops; + spu_management_ops = &spu_management_of_ops; +#endif + + cbe_regs_init(); + + cell_set_dabrx(); + +#ifdef CONFIG_CBE_RAS + cbe_ras_init(); +#endif + +#ifdef CONFIG_SMP + smp_init_cell(); +#endif + /* init to some ~sane value until calibrate_delay() runs */ + loops_per_jiffy = 50000000; + + /* Find and initialize PCI host bridges */ + init_pci_config_tokens(); + + cbe_pervasive_init(); + + mmio_nvram_init(); +} + +static int __init cell_probe(void) +{ + if (!of_machine_is_compatible("IBM,CBEA") && + !of_machine_is_compatible("IBM,CPBW-1.0")) + return 0; + + pm_power_off = rtas_power_off; + + return 1; +} + +define_machine(cell) { + .name = "Cell", + .probe = cell_probe, + .setup_arch = cell_setup_arch, + .show_cpuinfo = cell_show_cpuinfo, + .restart = rtas_restart, + .halt = rtas_halt, + .get_boot_time = rtas_get_boot_time, + .get_rtc_time = rtas_get_rtc_time, + .set_rtc_time = rtas_set_rtc_time, + .calibrate_decr = generic_calibrate_decr, + .progress = cell_progress, + .init_IRQ = cell_init_irq, + .pci_setup_phb = cell_setup_phb, +}; + +struct pci_controller_ops cell_pci_controller_ops; -- cgit v1.2.3