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, 494 insertions, 0 deletions

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
new file mode 100644
index 000000000..e973c6893
--- /dev/null
+++ b/drivers/parisc/superio.c
@@ -0,0 +1,494 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*      National Semiconductor NS87560UBD Super I/O controller used in
+ *      HP [BCJ]x000 workstations.
+ *
+ *      This chip is a horrid piece of engineering, and National
+ *      denies any knowledge of its existence. Thus no datasheet is
+ *      available off www.national.com. 
+ *
+ *	(C) Copyright 2000 Linuxcare, Inc.
+ * 	(C) Copyright 2000 Linuxcare Canada, Inc.
+ *	(C) Copyright 2000 Martin K. Petersen <mkp@linuxcare.com>
+ * 	(C) Copyright 2000 Alex deVries <alex@onefishtwo.ca>
+ *      (C) Copyright 2001 John Marvin <jsm fc hp com>
+ *      (C) Copyright 2003 Grant Grundler <grundler parisc-linux org>
+ *	(C) Copyright 2005 Kyle McMartin <kyle@parisc-linux.org>
+ *	(C) Copyright 2006 Helge Deller <deller@gmx.de>
+ *
+ *	The initial version of this is by Martin Peterson.  Alex deVries
+ *	has spent a bit of time trying to coax it into working.
+ *
+ *      Major changes to get basic interrupt infrastructure working to
+ *      hopefully be able to support all SuperIO devices. Currently
+ *      works with serial. -- John Marvin <jsm@fc.hp.com>
+ *
+ *	Converted superio_init() to be a PCI_FIXUP_FINAL callee.
+ *         -- Kyle McMartin <kyle@parisc-linux.org>
+ */
+
+
+/* NOTES:
+ * 
+ * Function 0 is an IDE controller. It is identical to a PC87415 IDE
+ * controller (and identifies itself as such).
+ *
+ * Function 1 is a "Legacy I/O" controller. Under this function is a
+ * whole mess of legacy I/O peripherals. Of course, HP hasn't enabled
+ * all the functionality in hardware, but the following is available:
+ *
+ *      Two 16550A compatible serial controllers
+ *      An IEEE 1284 compatible parallel port
+ *      A floppy disk controller
+ *
+ * Function 2 is a USB controller.
+ *
+ * We must be incredibly careful during initialization.  Since all
+ * interrupts are routed through function 1 (which is not allowed by
+ * the PCI spec), we need to program the PICs on the legacy I/O port
+ * *before* we attempt to set up IDE and USB.  @#$!&
+ *
+ * According to HP, devices are only enabled by firmware if they have
+ * a physical device connected.
+ *
+ * Configuration register bits:
+ *     0x5A: FDC, SP1, IDE1, SP2, IDE2, PAR, Reserved, P92
+ *     0x5B: RTC, 8259, 8254, DMA1, DMA2, KBC, P61, APM
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/serial.h>
+#include <linux/pci.h>
+#include <linux/parport.h>
+#include <linux/parport_pc.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/superio.h>
+
+static struct superio_device sio_dev;
+
+
+#undef DEBUG_SUPERIO_INIT
+
+#ifdef DEBUG_SUPERIO_INIT
+#define DBG_INIT(x...)  printk(x)
+#else
+#define DBG_INIT(x...)
+#endif
+
+#define SUPERIO	"SuperIO"
+#define PFX	SUPERIO ": "
+
+static irqreturn_t
+superio_interrupt(int parent_irq, void *devp)
+{
+	u8 results;
+	u8 local_irq;
+
+	/* Poll the 8259 to see if there's an interrupt. */
+	outb (OCW3_POLL,IC_PIC1+0);
+
+	results = inb(IC_PIC1+0);
+
+	/*
+	 * Bit    7:	1 = active Interrupt; 0 = no Interrupt pending
+	 * Bits 6-3:	zero
+	 * Bits 2-0:	highest priority, active requesting interrupt ID (0-7)
+	 */
+	if ((results & 0x80) == 0) {
+		/* I suspect "spurious" interrupts are from unmasking an IRQ.
+		 * We don't know if an interrupt was/is pending and thus
+		 * just call the handler for that IRQ as if it were pending.
+		 */
+		return IRQ_NONE;
+	}
+
+	/* Check to see which device is interrupting */
+	local_irq = results & 0x0f;
+
+	if (local_irq == 2 || local_irq > 7) {
+		printk(KERN_ERR PFX "slave interrupted!\n");
+		return IRQ_HANDLED;
+	}
+
+	if (local_irq == 7) {
+
+		/* Could be spurious. Check in service bits */
+
+		outb(OCW3_ISR,IC_PIC1+0);
+		results = inb(IC_PIC1+0);
+		if ((results & 0x80) == 0) { /* if ISR7 not set: spurious */
+			printk(KERN_WARNING PFX "spurious interrupt!\n");
+			return IRQ_HANDLED;
+		}
+	}
+
+	/* Call the appropriate device's interrupt */
+	generic_handle_irq(local_irq);
+
+	/* set EOI - forces a new interrupt if a lower priority device
+	 * still needs service.
+	 */
+	outb((OCW2_SEOI|local_irq),IC_PIC1 + 0);
+	return IRQ_HANDLED;
+}
+
+/* Initialize Super I/O device */
+static void
+superio_init(struct pci_dev *pcidev)
+{
+	struct superio_device *sio = &sio_dev;
+	struct pci_dev *pdev = sio->lio_pdev;
+	u16 word;
+	int ret;
+
+	if (sio->suckyio_irq_enabled)
+		return;
+
+	BUG_ON(!pdev);
+	BUG_ON(!sio->usb_pdev);
+
+	/* use the IRQ iosapic found for USB INT D... */
+	pdev->irq = sio->usb_pdev->irq;
+
+	/* ...then properly fixup the USB to point at suckyio PIC */
+	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
+
+	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
+	       pci_name(pdev), pdev->irq);
+
+	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
+	sio->sp1_base &= ~1;
+	printk(KERN_INFO PFX "Serial port 1 at 0x%x\n", sio->sp1_base);
+
+	pci_read_config_dword (pdev, SIO_SP2BAR, &sio->sp2_base);
+	sio->sp2_base &= ~1;
+	printk(KERN_INFO PFX "Serial port 2 at 0x%x\n", sio->sp2_base);
+
+	pci_read_config_dword (pdev, SIO_PPBAR, &sio->pp_base);
+	sio->pp_base &= ~1;
+	printk(KERN_INFO PFX "Parallel port at 0x%x\n", sio->pp_base);
+
+	pci_read_config_dword (pdev, SIO_FDCBAR, &sio->fdc_base);
+	sio->fdc_base &= ~1;
+	printk(KERN_INFO PFX "Floppy controller at 0x%x\n", sio->fdc_base);
+	pci_read_config_dword (pdev, SIO_ACPIBAR, &sio->acpi_base);
+	sio->acpi_base &= ~1;
+	printk(KERN_INFO PFX "ACPI at 0x%x\n", sio->acpi_base);
+
+	request_region (IC_PIC1, 0x1f, "pic1");
+	request_region (IC_PIC2, 0x1f, "pic2");
+	request_region (sio->acpi_base, 0x1f, "acpi");
+
+	/* Enable the legacy I/O function */
+	pci_read_config_word (pdev, PCI_COMMAND, &word);
+	word |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_IO;
+	pci_write_config_word (pdev, PCI_COMMAND, word);
+
+	pci_set_master (pdev);
+	ret = pci_enable_device(pdev);
+	BUG_ON(ret < 0);	/* not too much we can do about this... */
+
+	/*
+	 * Next project is programming the onboard interrupt controllers.
+	 * PDC hasn't done this for us, since it's using polled I/O.
+	 *
+	 * XXX Use dword writes to avoid bugs in Elroy or Suckyio Config
+	 *     space access.  PCI is by nature a 32-bit bus and config
+	 *     space can be sensitive to that.
+	 */
+
+	/* 0x64 - 0x67 :
+		DMA Rtg 2
+		DMA Rtg 3
+		DMA Chan Ctl
+		TRIGGER_1    == 0x82   USB & IDE level triggered, rest to edge
+	*/
+	pci_write_config_dword (pdev, 0x64,         0x82000000U);
+
+	/* 0x68 - 0x6b :
+		TRIGGER_2    == 0x00   all edge triggered (not used)
+		CFG_IR_SER   == 0x43   SerPort1 = IRQ3, SerPort2 = IRQ4
+		CFG_IR_PF    == 0x65   ParPort  = IRQ5, FloppyCtlr = IRQ6
+		CFG_IR_IDE   == 0x07   IDE1 = IRQ7, reserved
+	*/
+	pci_write_config_dword (pdev, TRIGGER_2,    0x07654300U);
+
+	/* 0x6c - 0x6f :
+		CFG_IR_INTAB == 0x00
+		CFG_IR_INTCD == 0x10   USB = IRQ1
+		CFG_IR_PS2   == 0x00
+		CFG_IR_FXBUS == 0x00
+	*/
+	pci_write_config_dword (pdev, CFG_IR_INTAB, 0x00001000U);
+
+	/* 0x70 - 0x73 :
+		CFG_IR_USB   == 0x00  not used. USB is connected to INTD.
+		CFG_IR_ACPI  == 0x00  not used.
+		DMA Priority == 0x4c88  Power on default value. NFC.
+	*/
+	pci_write_config_dword (pdev, CFG_IR_USB, 0x4c880000U);
+
+	/* PIC1 Initialization Command Word register programming */
+	outb (0x11,IC_PIC1+0);	/* ICW1: ICW4 write req | ICW1 */
+	outb (0x00,IC_PIC1+1);	/* ICW2: interrupt vector table - not used */
+	outb (0x04,IC_PIC1+1);	/* ICW3: Cascade */
+	outb (0x01,IC_PIC1+1);	/* ICW4: x86 mode */
+
+	/* PIC1 Program Operational Control Words */
+	outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
+	outb (0xc2,IC_PIC1+0);  /* OCW2: priority (3-7,0-2) */
+
+	/* PIC2 Initialization Command Word register programming */
+	outb (0x11,IC_PIC2+0);	/* ICW1: ICW4 write req | ICW1 */
+	outb (0x00,IC_PIC2+1);	/* ICW2: N/A */
+	outb (0x02,IC_PIC2+1);	/* ICW3: Slave ID code */
+	outb (0x01,IC_PIC2+1);	/* ICW4: x86 mode */
+		
+	/* Program Operational Control Words */
+	outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
+	outb (0x68,IC_PIC1+0);	/* OCW3: OCW3 select | ESMM | SMM */
+
+	/* Write master mask reg */
+	outb (0xff,IC_PIC1+1);
+
+	/* Setup USB power regulation */
+	outb(1, sio->acpi_base + USB_REG_CR);
+	if (inb(sio->acpi_base + USB_REG_CR) & 1)
+		printk(KERN_INFO PFX "USB regulator enabled\n");
+	else
+		printk(KERN_ERR PFX "USB regulator not initialized!\n");
+
+	if (request_irq(pdev->irq, superio_interrupt, 0,
+			SUPERIO, (void *)sio)) {
+
+		printk(KERN_ERR PFX "could not get irq\n");
+		BUG();
+		return;
+	}
+
+	sio->suckyio_irq_enabled = 1;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO, superio_init);
+
+static void superio_mask_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	u8 r8;
+
+	if ((irq < 1) || (irq == 2) || (irq > 7)) {
+		printk(KERN_ERR PFX "Illegal irq number.\n");
+		BUG();
+		return;
+	}
+
+	/* Mask interrupt */
+
+	r8 = inb(IC_PIC1+1);
+	r8 |= (1 << irq);
+	outb (r8,IC_PIC1+1);
+}
+
+static void superio_unmask_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	u8 r8;
+
+	if ((irq < 1) || (irq == 2) || (irq > 7)) {
+		printk(KERN_ERR PFX "Illegal irq number (%d).\n", irq);
+		BUG();
+		return;
+	}
+
+	/* Unmask interrupt */
+	r8 = inb(IC_PIC1+1);
+	r8 &= ~(1 << irq);
+	outb (r8,IC_PIC1+1);
+}
+
+static struct irq_chip superio_interrupt_type = {
+	.name		=	SUPERIO,
+	.irq_unmask	=	superio_unmask_irq,
+	.irq_mask	=	superio_mask_irq,
+};
+
+#ifdef DEBUG_SUPERIO_INIT
+static unsigned short expected_device[3] = {
+	PCI_DEVICE_ID_NS_87415,
+	PCI_DEVICE_ID_NS_87560_LIO,
+	PCI_DEVICE_ID_NS_87560_USB
+};
+#endif
+
+int superio_fixup_irq(struct pci_dev *pcidev)
+{
+	int local_irq, i;
+
+#ifdef DEBUG_SUPERIO_INIT
+	int fn;
+	fn = PCI_FUNC(pcidev->devfn);
+
+	/* Verify the function number matches the expected device id. */
+	if (expected_device[fn] != pcidev->device) {
+		BUG();
+		return -1;
+	}
+	printk(KERN_DEBUG "superio_fixup_irq(%s) ven 0x%x dev 0x%x from %ps\n",
+		pci_name(pcidev),
+		pcidev->vendor, pcidev->device,
+		__builtin_return_address(0));
+#endif
+
+	for (i = 0; i < 16; i++) {
+		irq_set_chip_and_handler(i, &superio_interrupt_type,
+					 handle_simple_irq);
+	}
+
+	/*
+	 * We don't allocate a SuperIO irq for the legacy IO function,
+	 * since it is a "bridge". Instead, we will allocate irq's for
+	 * each legacy device as they are initialized.
+	 */
+
+	switch(pcidev->device) {
+	case PCI_DEVICE_ID_NS_87415:		/* Function 0 */
+		local_irq = IDE_IRQ;
+		break;
+	case PCI_DEVICE_ID_NS_87560_LIO:	/* Function 1 */
+		sio_dev.lio_pdev = pcidev;	/* save for superio_init() */
+		return -1;
+	case PCI_DEVICE_ID_NS_87560_USB:	/* Function 2 */
+		sio_dev.usb_pdev = pcidev;	/* save for superio_init() */
+		local_irq = USB_IRQ;
+		break;
+	default:
+		local_irq = -1;
+		BUG();
+		break;
+	}
+
+	return local_irq;
+}
+
+static void __init superio_serial_init(void)
+{
+#ifdef CONFIG_SERIAL_8250
+	int retval;
+	struct uart_port serial_port;
+
+	memset(&serial_port, 0, sizeof(serial_port));
+	serial_port.iotype	= UPIO_PORT;
+	serial_port.type	= PORT_16550A;
+	serial_port.uartclk	= 115200*16;
+	serial_port.flags	= UPF_FIXED_PORT | UPF_FIXED_TYPE |
+				  UPF_BOOT_AUTOCONF;
+
+	/* serial port #1 */
+	serial_port.iobase	= sio_dev.sp1_base;
+	serial_port.irq		= SP1_IRQ;
+	serial_port.line	= 0;
+	retval = early_serial_setup(&serial_port);
+	if (retval < 0) {
+		printk(KERN_WARNING PFX "Register Serial #0 failed.\n");
+		return;
+	}
+
+	/* serial port #2 */
+	serial_port.iobase	= sio_dev.sp2_base;
+	serial_port.irq		= SP2_IRQ;
+	serial_port.line	= 1;
+	retval = early_serial_setup(&serial_port);
+	if (retval < 0)
+		printk(KERN_WARNING PFX "Register Serial #1 failed.\n");
+#endif /* CONFIG_SERIAL_8250 */
+}
+
+
+static void __init superio_parport_init(void)
+{
+#ifdef CONFIG_PARPORT_PC
+	if (!parport_pc_probe_port(sio_dev.pp_base,
+			0 /*base_hi*/,
+			PAR_IRQ, 
+			PARPORT_DMA_NONE /* dma */,
+			NULL /*struct pci_dev* */,
+			0 /* shared irq flags */))
+
+		printk(KERN_WARNING PFX "Probing parallel port failed.\n");
+#endif	/* CONFIG_PARPORT_PC */
+}
+
+
+static void superio_fixup_pci(struct pci_dev *pdev)
+{
+	u8 prog;
+
+	pdev->class |= 0x5;
+	pci_write_config_byte(pdev, PCI_CLASS_PROG, pdev->class);
+
+	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
+	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
+
+
+static int __init
+superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+	struct superio_device *sio = &sio_dev;
+
+	/*
+	** superio_probe(00:0e.0) ven 0x100b dev 0x2 sv 0x0 sd 0x0 class 0x1018a
+	** superio_probe(00:0e.1) ven 0x100b dev 0xe sv 0x0 sd 0x0 class 0x68000
+	** superio_probe(00:0e.2) ven 0x100b dev 0x12 sv 0x0 sd 0x0 class 0xc0310
+	*/
+	DBG_INIT("superio_probe(%s) ven 0x%x dev 0x%x sv 0x%x sd 0x%x class 0x%x\n",
+		pci_name(dev),
+		dev->vendor, dev->device,
+		dev->subsystem_vendor, dev->subsystem_device,
+		dev->class);
+
+	BUG_ON(!sio->suckyio_irq_enabled);	/* Enabled by PCI_FIXUP_FINAL */
+
+	if (dev->device == PCI_DEVICE_ID_NS_87560_LIO) {	/* Function 1 */
+		superio_parport_init();
+		superio_serial_init();
+		/* REVISIT XXX : superio_fdc_init() ? */
+		return 0;
+	} else if (dev->device == PCI_DEVICE_ID_NS_87415) {	/* Function 0 */
+		DBG_INIT("superio_probe: ignoring IDE 87415\n");
+	} else if (dev->device == PCI_DEVICE_ID_NS_87560_USB) {	/* Function 2 */
+		DBG_INIT("superio_probe: ignoring USB OHCI controller\n");
+	} else {
+		DBG_INIT("superio_probe: WTF? Fire Extinguisher?\n");
+	}
+
+	/* Let appropriate other driver claim this device. */
+	return -ENODEV;
+}
+
+static const struct pci_device_id superio_tbl[] __initconst = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
+	{ 0, }
+};
+
+static struct pci_driver superio_driver __refdata = {
+	.name =         SUPERIO,
+	.id_table =     superio_tbl,
+	.probe =        superio_probe,
+};
+
+module_pci_driver(superio_driver);