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, 335 insertions, 0 deletions

diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
new file mode 100644
index 000000000..e2cc59db8
--- /dev/null
+++ b/arch/ia64/kernel/smp.c
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SMP Support
+ *
+ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
+ * Copyright (C) 1999, 2001, 2003 David Mosberger-Tang <davidm@hpl.hp.com>
+ *
+ * Lots of stuff stolen from arch/alpha/kernel/smp.c
+ *
+ * 01/05/16 Rohit Seth <rohit.seth@intel.com>  IA64-SMP functions. Reorganized
+ * the existing code (on the lines of x86 port).
+ * 00/09/11 David Mosberger <davidm@hpl.hp.com> Do loops_per_jiffy
+ * calibration on each CPU.
+ * 00/08/23 Asit Mallick <asit.k.mallick@intel.com> fixed logical processor id
+ * 00/03/31 Rohit Seth <rohit.seth@intel.com>	Fixes for Bootstrap Processor
+ * & cpu_online_map now gets done here (instead of setup.c)
+ * 99/10/05 davidm	Update to bring it in sync with new command-line processing
+ *  scheme.
+ * 10/13/00 Goutham Rao <goutham.rao@intel.com> Updated smp_call_function and
+ *		smp_call_function_single to resend IPI on timeouts
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/smp.h>
+#include <linux/kernel_stat.h>
+#include <linux/mm.h>
+#include <linux/cache.h>
+#include <linux/delay.h>
+#include <linux/efi.h>
+#include <linux/bitops.h>
+#include <linux/kexec.h>
+
+#include <linux/atomic.h>
+#include <asm/current.h>
+#include <asm/delay.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/sal.h>
+#include <asm/tlbflush.h>
+#include <asm/unistd.h>
+#include <asm/mca.h>
+#include <asm/xtp.h>
+
+/*
+ * Note: alignment of 4 entries/cacheline was empirically determined
+ * to be a good tradeoff between hot cachelines & spreading the array
+ * across too many cacheline.
+ */
+static struct local_tlb_flush_counts {
+	unsigned int count;
+} __attribute__((__aligned__(32))) local_tlb_flush_counts[NR_CPUS];
+
+static DEFINE_PER_CPU_SHARED_ALIGNED(unsigned short [NR_CPUS],
+				     shadow_flush_counts);
+
+#define IPI_CALL_FUNC		0
+#define IPI_CPU_STOP		1
+#define IPI_CALL_FUNC_SINGLE	2
+#define IPI_KDUMP_CPU_STOP	3
+
+/* This needs to be cacheline aligned because it is written to by *other* CPUs.  */
+static DEFINE_PER_CPU_SHARED_ALIGNED(unsigned long, ipi_operation);
+
+extern void cpu_halt (void);
+
+static void
+stop_this_cpu(void)
+{
+	/*
+	 * Remove this CPU:
+	 */
+	set_cpu_online(smp_processor_id(), false);
+	max_xtp();
+	local_irq_disable();
+	cpu_halt();
+}
+
+void
+cpu_die(void)
+{
+	max_xtp();
+	local_irq_disable();
+	cpu_halt();
+	/* Should never be here */
+	BUG();
+	for (;;);
+}
+
+irqreturn_t
+handle_IPI (int irq, void *dev_id)
+{
+	int this_cpu = get_cpu();
+	unsigned long *pending_ipis = &__ia64_per_cpu_var(ipi_operation);
+	unsigned long ops;
+
+	mb();	/* Order interrupt and bit testing. */
+	while ((ops = xchg(pending_ipis, 0)) != 0) {
+		mb();	/* Order bit clearing and data access. */
+		do {
+			unsigned long which;
+
+			which = ffz(~ops);
+			ops &= ~(1 << which);
+
+			switch (which) {
+			case IPI_CPU_STOP:
+				stop_this_cpu();
+				break;
+			case IPI_CALL_FUNC:
+				generic_smp_call_function_interrupt();
+				break;
+			case IPI_CALL_FUNC_SINGLE:
+				generic_smp_call_function_single_interrupt();
+				break;
+#ifdef CONFIG_KEXEC
+			case IPI_KDUMP_CPU_STOP:
+				unw_init_running(kdump_cpu_freeze, NULL);
+				break;
+#endif
+			default:
+				printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n",
+						this_cpu, which);
+				break;
+			}
+		} while (ops);
+		mb();	/* Order data access and bit testing. */
+	}
+	put_cpu();
+	return IRQ_HANDLED;
+}
+
+
+
+/*
+ * Called with preemption disabled.
+ */
+static inline void
+send_IPI_single (int dest_cpu, int op)
+{
+	set_bit(op, &per_cpu(ipi_operation, dest_cpu));
+	ia64_send_ipi(dest_cpu, IA64_IPI_VECTOR, IA64_IPI_DM_INT, 0);
+}
+
+/*
+ * Called with preemption disabled.
+ */
+static inline void
+send_IPI_allbutself (int op)
+{
+	unsigned int i;
+
+	for_each_online_cpu(i) {
+		if (i != smp_processor_id())
+			send_IPI_single(i, op);
+	}
+}
+
+/*
+ * Called with preemption disabled.
+ */
+static inline void
+send_IPI_mask(const struct cpumask *mask, int op)
+{
+	unsigned int cpu;
+
+	for_each_cpu(cpu, mask) {
+			send_IPI_single(cpu, op);
+	}
+}
+
+/*
+ * Called with preemption disabled.
+ */
+static inline void
+send_IPI_all (int op)
+{
+	int i;
+
+	for_each_online_cpu(i) {
+		send_IPI_single(i, op);
+	}
+}
+
+/*
+ * Called with preemption disabled.
+ */
+static inline void
+send_IPI_self (int op)
+{
+	send_IPI_single(smp_processor_id(), op);
+}
+
+#ifdef CONFIG_KEXEC
+void
+kdump_smp_send_stop(void)
+{
+ 	send_IPI_allbutself(IPI_KDUMP_CPU_STOP);
+}
+
+void
+kdump_smp_send_init(void)
+{
+	unsigned int cpu, self_cpu;
+	self_cpu = smp_processor_id();
+	for_each_online_cpu(cpu) {
+		if (cpu != self_cpu) {
+			if(kdump_status[cpu] == 0)
+				ia64_send_ipi(cpu, 0, IA64_IPI_DM_INIT, 0);
+		}
+	}
+}
+#endif
+/*
+ * Called with preemption disabled.
+ */
+void
+smp_send_reschedule (int cpu)
+{
+	ia64_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0);
+}
+EXPORT_SYMBOL_GPL(smp_send_reschedule);
+
+/*
+ * Called with preemption disabled.
+ */
+static void
+smp_send_local_flush_tlb (int cpu)
+{
+	ia64_send_ipi(cpu, IA64_IPI_LOCAL_TLB_FLUSH, IA64_IPI_DM_INT, 0);
+}
+
+void
+smp_local_flush_tlb(void)
+{
+	/*
+	 * Use atomic ops. Otherwise, the load/increment/store sequence from
+	 * a "++" operation can have the line stolen between the load & store.
+	 * The overhead of the atomic op in negligible in this case & offers
+	 * significant benefit for the brief periods where lots of cpus
+	 * are simultaneously flushing TLBs.
+	 */
+	ia64_fetchadd(1, &local_tlb_flush_counts[smp_processor_id()].count, acq);
+	local_flush_tlb_all();
+}
+
+#define FLUSH_DELAY	5 /* Usec backoff to eliminate excessive cacheline bouncing */
+
+void
+smp_flush_tlb_cpumask(cpumask_t xcpumask)
+{
+	unsigned short *counts = __ia64_per_cpu_var(shadow_flush_counts);
+	cpumask_t cpumask = xcpumask;
+	int mycpu, cpu, flush_mycpu = 0;
+
+	preempt_disable();
+	mycpu = smp_processor_id();
+
+	for_each_cpu(cpu, &cpumask)
+		counts[cpu] = local_tlb_flush_counts[cpu].count & 0xffff;
+
+	mb();
+	for_each_cpu(cpu, &cpumask) {
+		if (cpu == mycpu)
+			flush_mycpu = 1;
+		else
+			smp_send_local_flush_tlb(cpu);
+	}
+
+	if (flush_mycpu)
+		smp_local_flush_tlb();
+
+	for_each_cpu(cpu, &cpumask)
+		while(counts[cpu] == (local_tlb_flush_counts[cpu].count & 0xffff))
+			udelay(FLUSH_DELAY);
+
+	preempt_enable();
+}
+
+void
+smp_flush_tlb_all (void)
+{
+	on_each_cpu((void (*)(void *))local_flush_tlb_all, NULL, 1);
+}
+
+void
+smp_flush_tlb_mm (struct mm_struct *mm)
+{
+	cpumask_var_t cpus;
+	preempt_disable();
+	/* this happens for the common case of a single-threaded fork():  */
+	if (likely(mm == current->active_mm && atomic_read(&mm->mm_users) == 1))
+	{
+		local_finish_flush_tlb_mm(mm);
+		preempt_enable();
+		return;
+	}
+	if (!alloc_cpumask_var(&cpus, GFP_ATOMIC)) {
+		smp_call_function((void (*)(void *))local_finish_flush_tlb_mm,
+			mm, 1);
+	} else {
+		cpumask_copy(cpus, mm_cpumask(mm));
+		smp_call_function_many(cpus,
+			(void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
+		free_cpumask_var(cpus);
+	}
+	local_irq_disable();
+	local_finish_flush_tlb_mm(mm);
+	local_irq_enable();
+	preempt_enable();
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+	send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
+}
+
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+	send_IPI_mask(mask, IPI_CALL_FUNC);
+}
+
+/*
+ * this function calls the 'stop' function on all other CPUs in the system.
+ */
+void
+smp_send_stop (void)
+{
+	send_IPI_allbutself(IPI_CPU_STOP);
+}