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, 297 insertions, 0 deletions

diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
new file mode 100644
index 000000000..96fd6ff3f
--- /dev/null
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_nautilus.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1998 Richard Henderson
+ *	Copyright (C) 1999 Alpha Processor, Inc.,
+ *		(David Daniel, Stig Telfer, Soohoon Lee)
+ *
+ * Code supporting NAUTILUS systems.
+ *
+ *
+ * NAUTILUS has the following I/O features:
+ *
+ * a) Driven by AMD 751 aka IRONGATE (northbridge):
+ *     4 PCI slots
+ *     1 AGP slot
+ *
+ * b) Driven by ALI M1543C (southbridge)
+ *     2 ISA slots
+ *     2 IDE connectors
+ *     1 dual drive capable FDD controller
+ *     2 serial ports
+ *     1 ECP/EPP/SP parallel port
+ *     2 USB ports
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/memblock.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_irongate.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "err_impl.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+static void __init
+nautilus_init_irq(void)
+{
+	if (alpha_using_srm) {
+		alpha_mv.device_interrupt = srm_device_interrupt;
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+static int
+nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/* Preserve the IRQ set up by the console.  */
+
+	u8 irq;
+	/* UP1500: AGP INTA is actually routed to IRQ 5, not IRQ 10 as
+	   console reports. Check the device id of AGP bridge to distinguish
+	   UP1500 from UP1000/1100. Note: 'pin' is 2 due to bridge swizzle. */
+	if (slot == 1 && pin == 2 &&
+	    dev->bus->self && dev->bus->self->device == 0x700f)
+		return 5;
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+	return irq;
+}
+
+void
+nautilus_kill_arch(int mode)
+{
+	struct pci_bus *bus = pci_isa_hose->bus;
+	u32 pmuport;
+	int off;
+
+	switch (mode) {
+	case LINUX_REBOOT_CMD_RESTART:
+		if (! alpha_using_srm) {
+			u8 t8;
+			pci_bus_read_config_byte(bus, 0x38, 0x43, &t8);
+			pci_bus_write_config_byte(bus, 0x38, 0x43, t8 | 0x80);
+			outb(1, 0x92);
+			outb(0, 0x92);
+			/* NOTREACHED */
+		}
+		break;
+
+	case LINUX_REBOOT_CMD_POWER_OFF:
+		/* Assume M1543C */
+		off = 0x2000;		/* SLP_TYPE = 0, SLP_EN = 1 */
+		pci_bus_read_config_dword(bus, 0x88, 0x10, &pmuport);
+		if (!pmuport) {
+			/* M1535D/D+ */
+			off = 0x3400;	/* SLP_TYPE = 5, SLP_EN = 1 */
+			pci_bus_read_config_dword(bus, 0x88, 0xe0, &pmuport);
+		}
+		pmuport &= 0xfffe;
+		outw(0xffff, pmuport);	/* Clear pending events. */
+		outw(off, pmuport + 4);
+		/* NOTREACHED */
+		break;
+	}
+}
+
+/* Perform analysis of a machine check that arrived from the system (NMI) */
+
+static void
+naut_sys_machine_check(unsigned long vector, unsigned long la_ptr,
+		       struct pt_regs *regs)
+{
+	printk("PC %lx RA %lx\n", regs->pc, regs->r26);
+	irongate_pci_clr_err();
+}
+
+/* Machine checks can come from two sources - those on the CPU and those
+   in the system.  They are analysed separately but all starts here.  */
+
+void
+nautilus_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	char *mchk_class;
+
+	/* Now for some analysis.  Machine checks fall into two classes --
+	   those picked up by the system, and those picked up by the CPU.
+	   Add to that the two levels of severity - correctable or not.  */
+
+	if (vector == SCB_Q_SYSMCHK
+	    && ((IRONGATE0->dramms & 0x300) == 0x300)) {
+		unsigned long nmi_ctl;
+
+		/* Clear ALI NMI */
+		nmi_ctl = inb(0x61);
+		nmi_ctl |= 0x0c;
+		outb(nmi_ctl, 0x61);
+		nmi_ctl &= ~0x0c;
+		outb(nmi_ctl, 0x61);
+
+		/* Write again clears error bits.  */
+		IRONGATE0->stat_cmd = IRONGATE0->stat_cmd & ~0x100;
+		mb();
+		IRONGATE0->stat_cmd;
+
+		/* Write again clears error bits.  */
+		IRONGATE0->dramms = IRONGATE0->dramms;
+		mb();
+		IRONGATE0->dramms;
+
+		draina();
+		wrmces(0x7);
+		mb();
+		return;
+	}
+
+	if (vector == SCB_Q_SYSERR)
+		mchk_class = "Correctable";
+	else if (vector == SCB_Q_SYSMCHK)
+		mchk_class = "Fatal";
+	else {
+		ev6_machine_check(vector, la_ptr);
+		return;
+	}
+
+	printk(KERN_CRIT "NAUTILUS Machine check 0x%lx "
+			 "[%s System Machine Check (NMI)]\n",
+	       vector, mchk_class);
+
+	naut_sys_machine_check(vector, la_ptr, get_irq_regs());
+
+	/* Tell the PALcode to clear the machine check */
+	draina();
+	wrmces(0x7);
+	mb();
+}
+
+extern void pcibios_claim_one_bus(struct pci_bus *);
+
+static struct resource irongate_mem = {
+	.name	= "Irongate PCI MEM",
+	.flags	= IORESOURCE_MEM,
+};
+static struct resource busn_resource = {
+	.name	= "PCI busn",
+	.start	= 0,
+	.end	= 255,
+	.flags	= IORESOURCE_BUS,
+};
+
+void __init
+nautilus_init_pci(void)
+{
+	struct pci_controller *hose = hose_head;
+	struct pci_host_bridge *bridge;
+	struct pci_bus *bus;
+	unsigned long bus_align, bus_size, pci_mem;
+	unsigned long memtop = max_low_pfn << PAGE_SHIFT;
+
+	bridge = pci_alloc_host_bridge(0);
+	if (!bridge)
+		return;
+
+	/* Use default IO. */
+	pci_add_resource(&bridge->windows, &ioport_resource);
+	/* Irongate PCI memory aperture, calculate required size before
+	   setting it up. */
+	pci_add_resource(&bridge->windows, &irongate_mem);
+
+	pci_add_resource(&bridge->windows, &busn_resource);
+	bridge->dev.parent = NULL;
+	bridge->sysdata = hose;
+	bridge->busnr = 0;
+	bridge->ops = alpha_mv.pci_ops;
+	bridge->swizzle_irq = alpha_mv.pci_swizzle;
+	bridge->map_irq = alpha_mv.pci_map_irq;
+	bridge->size_windows = 1;
+
+	/* Scan our single hose.  */
+	if (pci_scan_root_bus_bridge(bridge)) {
+		pci_free_host_bridge(bridge);
+		return;
+	}
+	bus = hose->bus = bridge->bus;
+	pcibios_claim_one_bus(bus);
+
+	pci_bus_size_bridges(bus);
+
+	/* Now we've got the size and alignment of PCI memory resources
+	   stored in irongate_mem. Set up the PCI memory range: limit is
+	   hardwired to 0xffffffff, base must be aligned to 16Mb. */
+	bus_align = irongate_mem.start;
+	bus_size = irongate_mem.end + 1 - bus_align;
+	if (bus_align < 0x1000000UL)
+		bus_align = 0x1000000UL;
+
+	pci_mem = (0x100000000UL - bus_size) & -bus_align;
+	irongate_mem.start = pci_mem;
+	irongate_mem.end = 0xffffffffUL;
+
+	/* Register our newly calculated PCI memory window in the resource
+	   tree. */
+	if (request_resource(&iomem_resource, &irongate_mem) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose 0\n");
+
+	printk(KERN_INFO "Irongate pci_mem %pR\n", &irongate_mem);
+
+	if (pci_mem < memtop)
+		memtop = pci_mem;
+	if (memtop > alpha_mv.min_mem_address) {
+		free_reserved_area(__va(alpha_mv.min_mem_address),
+				   __va(memtop), -1, NULL);
+		printk(KERN_INFO "nautilus_init_pci: %ldk freed\n",
+			(memtop - alpha_mv.min_mem_address) >> 10);
+	}
+	if ((IRONGATE0->dev_vendor >> 16) > 0x7006)	/* Albacore? */
+		IRONGATE0->pci_mem = pci_mem;
+
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
+}
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector nautilus_mv __initmv = {
+	.vector_name		= "Nautilus",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_IRONGATE_IO,
+	.machine_check		= nautilus_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= IRONGATE_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= isa_device_interrupt,
+
+	.init_arch		= irongate_init_arch,
+	.init_irq		= nautilus_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= nautilus_init_pci,
+	.kill_arch		= nautilus_kill_arch,
+	.pci_map_irq		= nautilus_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(nautilus)