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/sparc/kernel/of_device_32.c | 433 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 433 insertions(+) create mode 100644 arch/sparc/kernel/of_device_32.c (limited to 'arch/sparc/kernel/of_device_32.c') diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c new file mode 100644 index 000000000..4ebf51e6e --- /dev/null +++ b/arch/sparc/kernel/of_device_32.c @@ -0,0 +1,433 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "of_device_common.h" +#include "irq.h" + +/* + * PCI bus specific translator + */ + +static int of_bus_pci_match(struct device_node *np) +{ + if (of_node_is_type(np, "pci") || of_node_is_type(np, "pciex")) { + /* Do not do PCI specific frobbing if the + * PCI bridge lacks a ranges property. We + * want to pass it through up to the next + * parent as-is, not with the PCI translate + * method which chops off the top address cell. + */ + if (!of_find_property(np, "ranges", NULL)) + return 0; + + return 1; + } + + return 0; +} + +static void of_bus_pci_count_cells(struct device_node *np, + int *addrc, int *sizec) +{ + if (addrc) + *addrc = 3; + if (sizec) + *sizec = 2; +} + +static int of_bus_pci_map(u32 *addr, const u32 *range, + int na, int ns, int pna) +{ + u32 result[OF_MAX_ADDR_CELLS]; + int i; + + /* Check address type match */ + if ((addr[0] ^ range[0]) & 0x03000000) + return -EINVAL; + + if (of_out_of_range(addr + 1, range + 1, range + na + pna, + na - 1, ns)) + return -EINVAL; + + /* Start with the parent range base. */ + memcpy(result, range + na, pna * 4); + + /* Add in the child address offset, skipping high cell. */ + for (i = 0; i < na - 1; i++) + result[pna - 1 - i] += + (addr[na - 1 - i] - + range[na - 1 - i]); + + memcpy(addr, result, pna * 4); + + return 0; +} + +static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags) +{ + u32 w = addr[0]; + + /* For PCI, we override whatever child busses may have used. */ + flags = 0; + switch((w >> 24) & 0x03) { + case 0x01: + flags |= IORESOURCE_IO; + break; + + case 0x02: /* 32 bits */ + case 0x03: /* 64 bits */ + flags |= IORESOURCE_MEM; + break; + } + if (w & 0x40000000) + flags |= IORESOURCE_PREFETCH; + return flags; +} + +static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags) +{ + return IORESOURCE_MEM; +} + + /* + * AMBAPP bus specific translator + */ + +static int of_bus_ambapp_match(struct device_node *np) +{ + return of_node_is_type(np, "ambapp"); +} + +static void of_bus_ambapp_count_cells(struct device_node *child, + int *addrc, int *sizec) +{ + if (addrc) + *addrc = 1; + if (sizec) + *sizec = 1; +} + +static int of_bus_ambapp_map(u32 *addr, const u32 *range, + int na, int ns, int pna) +{ + return of_bus_default_map(addr, range, na, ns, pna); +} + +static unsigned long of_bus_ambapp_get_flags(const u32 *addr, + unsigned long flags) +{ + return IORESOURCE_MEM; +} + +/* + * Array of bus specific translators + */ + +static struct of_bus of_busses[] = { + /* PCI */ + { + .name = "pci", + .addr_prop_name = "assigned-addresses", + .match = of_bus_pci_match, + .count_cells = of_bus_pci_count_cells, + .map = of_bus_pci_map, + .get_flags = of_bus_pci_get_flags, + }, + /* SBUS */ + { + .name = "sbus", + .addr_prop_name = "reg", + .match = of_bus_sbus_match, + .count_cells = of_bus_sbus_count_cells, + .map = of_bus_default_map, + .get_flags = of_bus_sbus_get_flags, + }, + /* AMBA */ + { + .name = "ambapp", + .addr_prop_name = "reg", + .match = of_bus_ambapp_match, + .count_cells = of_bus_ambapp_count_cells, + .map = of_bus_ambapp_map, + .get_flags = of_bus_ambapp_get_flags, + }, + /* Default */ + { + .name = "default", + .addr_prop_name = "reg", + .match = NULL, + .count_cells = of_bus_default_count_cells, + .map = of_bus_default_map, + .get_flags = of_bus_default_get_flags, + }, +}; + +static struct of_bus *of_match_bus(struct device_node *np) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(of_busses); i ++) + if (!of_busses[i].match || of_busses[i].match(np)) + return &of_busses[i]; + BUG(); + return NULL; +} + +static int __init build_one_resource(struct device_node *parent, + struct of_bus *bus, + struct of_bus *pbus, + u32 *addr, + int na, int ns, int pna) +{ + const u32 *ranges; + unsigned int rlen; + int rone; + + ranges = of_get_property(parent, "ranges", &rlen); + if (ranges == NULL || rlen == 0) { + u32 result[OF_MAX_ADDR_CELLS]; + int i; + + memset(result, 0, pna * 4); + for (i = 0; i < na; i++) + result[pna - 1 - i] = + addr[na - 1 - i]; + + memcpy(addr, result, pna * 4); + return 0; + } + + /* Now walk through the ranges */ + rlen /= 4; + rone = na + pna + ns; + for (; rlen >= rone; rlen -= rone, ranges += rone) { + if (!bus->map(addr, ranges, na, ns, pna)) + return 0; + } + + return 1; +} + +static int __init use_1to1_mapping(struct device_node *pp) +{ + /* If we have a ranges property in the parent, use it. */ + if (of_find_property(pp, "ranges", NULL) != NULL) + return 0; + + /* Some SBUS devices use intermediate nodes to express + * hierarchy within the device itself. These aren't + * real bus nodes, and don't have a 'ranges' property. + * But, we should still pass the translation work up + * to the SBUS itself. + */ + if (of_node_name_eq(pp, "dma") || + of_node_name_eq(pp, "espdma") || + of_node_name_eq(pp, "ledma") || + of_node_name_eq(pp, "lebuffer")) + return 0; + + return 1; +} + +static int of_resource_verbose; + +static void __init build_device_resources(struct platform_device *op, + struct device *parent) +{ + struct platform_device *p_op; + struct of_bus *bus; + int na, ns; + int index, num_reg; + const void *preg; + + if (!parent) + return; + + p_op = to_platform_device(parent); + bus = of_match_bus(p_op->dev.of_node); + bus->count_cells(op->dev.of_node, &na, &ns); + + preg = of_get_property(op->dev.of_node, bus->addr_prop_name, &num_reg); + if (!preg || num_reg == 0) + return; + + /* Convert to num-cells. */ + num_reg /= 4; + + /* Conver to num-entries. */ + num_reg /= na + ns; + + op->resource = op->archdata.resource; + op->num_resources = num_reg; + for (index = 0; index < num_reg; index++) { + struct resource *r = &op->resource[index]; + u32 addr[OF_MAX_ADDR_CELLS]; + const u32 *reg = (preg + (index * ((na + ns) * 4))); + struct device_node *dp = op->dev.of_node; + struct device_node *pp = p_op->dev.of_node; + struct of_bus *pbus, *dbus; + u64 size, result = OF_BAD_ADDR; + unsigned long flags; + int dna, dns; + int pna, pns; + + size = of_read_addr(reg + na, ns); + + memcpy(addr, reg, na * 4); + + flags = bus->get_flags(reg, 0); + + if (use_1to1_mapping(pp)) { + result = of_read_addr(addr, na); + goto build_res; + } + + dna = na; + dns = ns; + dbus = bus; + + while (1) { + dp = pp; + pp = dp->parent; + if (!pp) { + result = of_read_addr(addr, dna); + break; + } + + pbus = of_match_bus(pp); + pbus->count_cells(dp, &pna, &pns); + + if (build_one_resource(dp, dbus, pbus, addr, + dna, dns, pna)) + break; + + flags = pbus->get_flags(addr, flags); + + dna = pna; + dns = pns; + dbus = pbus; + } + + build_res: + memset(r, 0, sizeof(*r)); + + if (of_resource_verbose) + printk("%pOF reg[%d] -> %llx\n", + op->dev.of_node, index, + result); + + if (result != OF_BAD_ADDR) { + r->start = result & 0xffffffff; + r->end = result + size - 1; + r->flags = flags | ((result >> 32ULL) & 0xffUL); + } + r->name = op->dev.of_node->full_name; + } +} + +static struct platform_device * __init scan_one_device(struct device_node *dp, + struct device *parent) +{ + struct platform_device *op = kzalloc(sizeof(*op), GFP_KERNEL); + const struct linux_prom_irqs *intr; + struct dev_archdata *sd; + int len, i; + + if (!op) + return NULL; + + sd = &op->dev.archdata; + sd->op = op; + + op->dev.of_node = dp; + + intr = of_get_property(dp, "intr", &len); + if (intr) { + op->archdata.num_irqs = len / sizeof(struct linux_prom_irqs); + for (i = 0; i < op->archdata.num_irqs; i++) + op->archdata.irqs[i] = + sparc_config.build_device_irq(op, intr[i].pri); + } else { + const unsigned int *irq = + of_get_property(dp, "interrupts", &len); + + if (irq) { + op->archdata.num_irqs = len / sizeof(unsigned int); + for (i = 0; i < op->archdata.num_irqs; i++) + op->archdata.irqs[i] = + sparc_config.build_device_irq(op, irq[i]); + } else { + op->archdata.num_irqs = 0; + } + } + + build_device_resources(op, parent); + + op->dev.parent = parent; + op->dev.bus = &platform_bus_type; + if (!parent) + dev_set_name(&op->dev, "root"); + else + dev_set_name(&op->dev, "%08x", dp->phandle); + + op->dev.coherent_dma_mask = DMA_BIT_MASK(32); + op->dev.dma_mask = &op->dev.coherent_dma_mask; + + if (of_device_register(op)) { + printk("%pOF: Could not register of device.\n", dp); + kfree(op); + op = NULL; + } + + return op; +} + +static void __init scan_tree(struct device_node *dp, struct device *parent) +{ + while (dp) { + struct platform_device *op = scan_one_device(dp, parent); + + if (op) + scan_tree(dp->child, &op->dev); + + dp = dp->sibling; + } +} + +static int __init scan_of_devices(void) +{ + struct device_node *root = of_find_node_by_path("/"); + struct platform_device *parent; + + parent = scan_one_device(root, NULL); + if (!parent) + return 0; + + scan_tree(root->child, &parent->dev); + return 0; +} +postcore_initcall(scan_of_devices); + +static int __init of_debug(char *str) +{ + int val = 0; + + get_option(&str, &val); + if (val & 1) + of_resource_verbose = 1; + return 1; +} + +__setup("of_debug=", of_debug); -- cgit v1.2.3