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().
  ...

1 files changed, 389 insertions, 0 deletions

diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
new file mode 100644
index 000000000..ad8094d95
--- /dev/null
+++ b/arch/sparc/kernel/smp_32.c
@@ -0,0 +1,389 @@
+// SPDX-License-Identifier: GPL-2.0
+/* smp.c: Sparc SMP support.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 2004 Keith M Wesolowski (wesolows@foobazco.org)
+ */
+
+#include <asm/head.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/threads.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/seq_file.h>
+#include <linux/cache.h>
+#include <linux/delay.h>
+#include <linux/profile.h>
+#include <linux/cpu.h>
+
+#include <asm/ptrace.h>
+#include <linux/atomic.h>
+
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/oplib.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/cpudata.h>
+#include <asm/timer.h>
+#include <asm/leon.h>
+
+#include "kernel.h"
+#include "irq.h"
+
+volatile unsigned long cpu_callin_map[NR_CPUS] = {0,};
+
+cpumask_t smp_commenced_mask = CPU_MASK_NONE;
+
+const struct sparc32_ipi_ops *sparc32_ipi_ops;
+
+/* The only guaranteed locking primitive available on all Sparc
+ * processors is 'ldstub [%reg + immediate], %dest_reg' which atomically
+ * places the current byte at the effective address into dest_reg and
+ * places 0xff there afterwards.  Pretty lame locking primitive
+ * compared to the Alpha and the Intel no?  Most Sparcs have 'swap'
+ * instruction which is much better...
+ */
+
+void smp_store_cpu_info(int id)
+{
+	int cpu_node;
+	int mid;
+
+	cpu_data(id).udelay_val = loops_per_jiffy;
+
+	cpu_find_by_mid(id, &cpu_node);
+	cpu_data(id).clock_tick = prom_getintdefault(cpu_node,
+						     "clock-frequency", 0);
+	cpu_data(id).prom_node = cpu_node;
+	mid = cpu_get_hwmid(cpu_node);
+
+	if (mid < 0) {
+		printk(KERN_NOTICE "No MID found for CPU%d at node 0x%08x", id, cpu_node);
+		mid = 0;
+	}
+	cpu_data(id).mid = mid;
+}
+
+void __init smp_cpus_done(unsigned int max_cpus)
+{
+	unsigned long bogosum = 0;
+	int cpu, num = 0;
+
+	for_each_online_cpu(cpu) {
+		num++;
+		bogosum += cpu_data(cpu).udelay_val;
+	}
+
+	printk("Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
+		num, bogosum/(500000/HZ),
+		(bogosum/(5000/HZ))%100);
+
+	switch(sparc_cpu_model) {
+	case sun4m:
+		smp4m_smp_done();
+		break;
+	case sun4d:
+		smp4d_smp_done();
+		break;
+	case sparc_leon:
+		leon_smp_done();
+		break;
+	case sun4e:
+		printk("SUN4E\n");
+		BUG();
+		break;
+	case sun4u:
+		printk("SUN4U\n");
+		BUG();
+		break;
+	default:
+		printk("UNKNOWN!\n");
+		BUG();
+		break;
+	}
+}
+
+void cpu_panic(void)
+{
+	printk("CPU[%d]: Returns from cpu_idle!\n", smp_processor_id());
+	panic("SMP bolixed\n");
+}
+
+struct linux_prom_registers smp_penguin_ctable = { 0 };
+
+void smp_send_reschedule(int cpu)
+{
+	/*
+	 * CPU model dependent way of implementing IPI generation targeting
+	 * a single CPU. The trap handler needs only to do trap entry/return
+	 * to call schedule.
+	 */
+	sparc32_ipi_ops->resched(cpu);
+}
+
+void smp_send_stop(void)
+{
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+	/* trigger one IPI single call on one CPU */
+	sparc32_ipi_ops->single(cpu);
+}
+
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+	int cpu;
+
+	/* trigger IPI mask call on each CPU */
+	for_each_cpu(cpu, mask)
+		sparc32_ipi_ops->mask_one(cpu);
+}
+
+void smp_resched_interrupt(void)
+{
+	irq_enter();
+	scheduler_ipi();
+	local_cpu_data().irq_resched_count++;
+	irq_exit();
+	/* re-schedule routine called by interrupt return code. */
+}
+
+void smp_call_function_single_interrupt(void)
+{
+	irq_enter();
+	generic_smp_call_function_single_interrupt();
+	local_cpu_data().irq_call_count++;
+	irq_exit();
+}
+
+void smp_call_function_interrupt(void)
+{
+	irq_enter();
+	generic_smp_call_function_interrupt();
+	local_cpu_data().irq_call_count++;
+	irq_exit();
+}
+
+void __init smp_prepare_cpus(unsigned int max_cpus)
+{
+	int i, cpuid, extra;
+
+	printk("Entering SMP Mode...\n");
+
+	extra = 0;
+	for (i = 0; !cpu_find_by_instance(i, NULL, &cpuid); i++) {
+		if (cpuid >= NR_CPUS)
+			extra++;
+	}
+	/* i = number of cpus */
+	if (extra && max_cpus > i - extra)
+		printk("Warning: NR_CPUS is too low to start all cpus\n");
+
+	smp_store_cpu_info(boot_cpu_id);
+
+	switch(sparc_cpu_model) {
+	case sun4m:
+		smp4m_boot_cpus();
+		break;
+	case sun4d:
+		smp4d_boot_cpus();
+		break;
+	case sparc_leon:
+		leon_boot_cpus();
+		break;
+	case sun4e:
+		printk("SUN4E\n");
+		BUG();
+		break;
+	case sun4u:
+		printk("SUN4U\n");
+		BUG();
+		break;
+	default:
+		printk("UNKNOWN!\n");
+		BUG();
+		break;
+	}
+}
+
+/* Set this up early so that things like the scheduler can init
+ * properly.  We use the same cpu mask for both the present and
+ * possible cpu map.
+ */
+void __init smp_setup_cpu_possible_map(void)
+{
+	int instance, mid;
+
+	instance = 0;
+	while (!cpu_find_by_instance(instance, NULL, &mid)) {
+		if (mid < NR_CPUS) {
+			set_cpu_possible(mid, true);
+			set_cpu_present(mid, true);
+		}
+		instance++;
+	}
+}
+
+void __init smp_prepare_boot_cpu(void)
+{
+	int cpuid = hard_smp_processor_id();
+
+	if (cpuid >= NR_CPUS) {
+		prom_printf("Serious problem, boot cpu id >= NR_CPUS\n");
+		prom_halt();
+	}
+	if (cpuid != 0)
+		printk("boot cpu id != 0, this could work but is untested\n");
+
+	current_thread_info()->cpu = cpuid;
+	set_cpu_online(cpuid, true);
+	set_cpu_possible(cpuid, true);
+}
+
+int __cpu_up(unsigned int cpu, struct task_struct *tidle)
+{
+	int ret=0;
+
+	switch(sparc_cpu_model) {
+	case sun4m:
+		ret = smp4m_boot_one_cpu(cpu, tidle);
+		break;
+	case sun4d:
+		ret = smp4d_boot_one_cpu(cpu, tidle);
+		break;
+	case sparc_leon:
+		ret = leon_boot_one_cpu(cpu, tidle);
+		break;
+	case sun4e:
+		printk("SUN4E\n");
+		BUG();
+		break;
+	case sun4u:
+		printk("SUN4U\n");
+		BUG();
+		break;
+	default:
+		printk("UNKNOWN!\n");
+		BUG();
+		break;
+	}
+
+	if (!ret) {
+		cpumask_set_cpu(cpu, &smp_commenced_mask);
+		while (!cpu_online(cpu))
+			mb();
+	}
+	return ret;
+}
+
+static void arch_cpu_pre_starting(void *arg)
+{
+	local_ops->cache_all();
+	local_ops->tlb_all();
+
+	switch(sparc_cpu_model) {
+	case sun4m:
+		sun4m_cpu_pre_starting(arg);
+		break;
+	case sun4d:
+		sun4d_cpu_pre_starting(arg);
+		break;
+	case sparc_leon:
+		leon_cpu_pre_starting(arg);
+		break;
+	default:
+		BUG();
+	}
+}
+
+static void arch_cpu_pre_online(void *arg)
+{
+	unsigned int cpuid = hard_smp_processor_id();
+
+	register_percpu_ce(cpuid);
+
+	calibrate_delay();
+	smp_store_cpu_info(cpuid);
+
+	local_ops->cache_all();
+	local_ops->tlb_all();
+
+	switch(sparc_cpu_model) {
+	case sun4m:
+		sun4m_cpu_pre_online(arg);
+		break;
+	case sun4d:
+		sun4d_cpu_pre_online(arg);
+		break;
+	case sparc_leon:
+		leon_cpu_pre_online(arg);
+		break;
+	default:
+		BUG();
+	}
+}
+
+static void sparc_start_secondary(void *arg)
+{
+	unsigned int cpu;
+
+	/*
+	 * SMP booting is extremely fragile in some architectures. So run
+	 * the cpu initialization code first before anything else.
+	 */
+	arch_cpu_pre_starting(arg);
+
+	cpu = smp_processor_id();
+
+	notify_cpu_starting(cpu);
+	arch_cpu_pre_online(arg);
+
+	/* Set the CPU in the cpu_online_mask */
+	set_cpu_online(cpu, true);
+
+	/* Enable local interrupts now */
+	local_irq_enable();
+
+	wmb();
+	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
+
+	/* We should never reach here! */
+	BUG();
+}
+
+void smp_callin(void)
+{
+	sparc_start_secondary(NULL);
+}
+
+void smp_bogo(struct seq_file *m)
+{
+	int i;
+	
+	for_each_online_cpu(i) {
+		seq_printf(m,
+			   "Cpu%dBogo\t: %lu.%02lu\n",
+			   i,
+			   cpu_data(i).udelay_val/(500000/HZ),
+			   (cpu_data(i).udelay_val/(5000/HZ))%100);
+	}
+}
+
+void smp_info(struct seq_file *m)
+{
+	int i;
+
+	seq_printf(m, "State:\n");
+	for_each_online_cpu(i)
+		seq_printf(m, "CPU%d\t\t: online\n", i);
+}