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, 272 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/mac_via.h b/arch/m68k/include/asm/mac_via.h
new file mode 100644
index 000000000..a9ef1e9ba
--- /dev/null
+++ b/arch/m68k/include/asm/mac_via.h
@@ -0,0 +1,272 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	6522 Versatile Interface Adapter (VIA)
+ *
+ *	There are two of these on the Mac II. Some IRQ's are vectored
+ *	via them as are assorted bits and bobs - eg rtc, adb. The picture
+ *	is a bit incomplete as the Mac documentation doesn't cover this well
+ */
+
+#ifndef _ASM_MAC_VIA_H_
+#define _ASM_MAC_VIA_H_
+
+/*
+ * Base addresses for the VIAs. There are two in every machine,
+ * although on some machines the second is an RBV or an OSS.
+ * The OSS is different enough that it's handled separately.
+ *
+ * Do not use these values directly; use the via1 and via2 variables
+ * instead (and don't forget to check rbv_present when using via2!)
+ */
+
+#define VIA1_BASE	(0x50F00000)
+#define VIA2_BASE	(0x50F02000)
+#define  RBV_BASE	(0x50F26000)
+
+/*
+ *	Not all of these are true post MacII I think.
+ *      CSA: probably the ones CHRP marks as 'unused' change purposes
+ *      when the IWM becomes the SWIM.
+ *      http://www.rs6000.ibm.com/resource/technology/chrpio/via5.mak.html
+ *      ftp://ftp.austin.ibm.com/pub/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
+ *
+ * also, http://developer.apple.com/technotes/hw/hw_09.html claims the
+ * following changes for IIfx:
+ * VIA1A_vSccWrReq not available and that VIA1A_vSync has moved to an IOP.
+ * Also, "All of the functionality of VIA2 has been moved to other chips".
+ */
+
+#define VIA1A_vSccWrReq	0x80	/* SCC write. (input)
+				 * [CHRP] SCC WREQ: Reflects the state of the
+				 * Wait/Request pins from the SCC.
+				 * [Macintosh Family Hardware]
+				 * as CHRP on SE/30,II,IIx,IIcx,IIci.
+				 * on IIfx, "0 means an active request"
+				 */
+#define VIA1A_vRev8	0x40	/* Revision 8 board ???
+                                 * [CHRP] En WaitReqB: Lets the WaitReq_L
+				 * signal from port B of the SCC appear on
+				 * the PA7 input pin. Output.
+				 * [Macintosh Family] On the SE/30, this
+				 * is the bit to flip screen buffers.
+				 * 0=alternate, 1=main.
+				 * on II,IIx,IIcx,IIci,IIfx this is a bit
+				 * for Rev ID. 0=II,IIx, 1=IIcx,IIci,IIfx
+				 */
+#define VIA1A_vHeadSel	0x20	/* Head select for IWM.
+				 * [CHRP] unused.
+				 * [Macintosh Family] "Floppy disk
+				 * state-control line SEL" on all but IIfx
+				 */
+#define VIA1A_vOverlay	0x10    /* [Macintosh Family] On SE/30,II,IIx,IIcx
+				 * this bit enables the "Overlay" address
+				 * map in the address decoders as it is on
+				 * reset for mapping the ROM over the reset
+				 * vector. 1=use overlay map.
+				 * On the IIci,IIfx it is another bit of the
+				 * CPU ID: 0=normal IIci, 1=IIci with parity
+				 * feature or IIfx.
+				 * [CHRP] En WaitReqA: Lets the WaitReq_L
+				 * signal from port A of the SCC appear
+				 * on the PA7 input pin (CHRP). Output.
+				 * [MkLinux] "Drive Select"
+				 *  (with 0x20 being 'disk head select')
+				 */
+#define VIA1A_vSync	0x08    /* [CHRP] Sync Modem: modem clock select:
+                                 * 1: select the external serial clock to
+				 *    drive the SCC's /RTxCA pin.
+				 * 0: Select the 3.6864MHz clock to drive
+				 *    the SCC cell.
+				 * [Macintosh Family] Correct on all but IIfx
+				 */
+
+/* Macintosh Family Hardware sez: bits 0-2 of VIA1A are volume control
+ * on Macs which had the PWM sound hardware.  Reserved on newer models.
+ * On IIci,IIfx, bits 1-2 are the rest of the CPU ID:
+ * bit 2: 1=IIci, 0=IIfx
+ * bit 1: 1 on both IIci and IIfx.
+ * MkLinux sez bit 0 is 'burnin flag' in this case.
+ * CHRP sez: VIA1A bits 0-2 and 5 are 'unused': if programmed as
+ * inputs, these bits will read 0.
+ */
+#define VIA1A_vVolume	0x07	/* Audio volume mask for PWM */
+#define VIA1A_CPUID0	0x02	/* CPU id bit 0 on RBV, others */
+#define VIA1A_CPUID1	0x04	/* CPU id bit 0 on RBV, others */
+#define VIA1A_CPUID2	0x10	/* CPU id bit 0 on RBV, others */
+#define VIA1A_CPUID3	0x40	/* CPU id bit 0 on RBV, others */
+
+/* Info on VIA1B is from Macintosh Family Hardware & MkLinux.
+ * CHRP offers no info. */
+#define VIA1B_vSound	0x80	/* Sound enable (for compatibility with
+				 * PWM hardware) 0=enabled.
+				 * Also, on IIci w/parity, shows parity error
+				 * 0=error, 1=OK. */
+#define VIA1B_vMystery	0x40    /* On IIci, parity enable. 0=enabled,1=disabled
+				 * On SE/30, vertical sync interrupt enable.
+				 * 0=enabled. This vSync interrupt shows up
+				 * as a slot $E interrupt. */
+#define VIA1B_vADBS2	0x20	/* ADB state input bit 1 (unused on IIfx) */
+#define VIA1B_vADBS1	0x10	/* ADB state input bit 0 (unused on IIfx) */
+#define VIA1B_vADBInt	0x08	/* ADB interrupt 0=interrupt (unused on IIfx)*/
+#define VIA1B_vRTCEnb	0x04	/* Enable Real time clock. 0=enabled. */
+#define VIA1B_vRTCClk	0x02    /* Real time clock serial-clock line. */
+#define VIA1B_vRTCData	0x01    /* Real time clock serial-data line. */
+
+/* MkLinux defines the following "VIA1 Register B contents where they
+ * differ from standard VIA1".  From the naming scheme, we assume they
+ * correspond to a VIA work-alike named 'EVR'. */
+#define	EVRB_XCVR	0x08	/* XCVR_SESSION* */
+#define	EVRB_FULL	0x10	/* VIA_FULL */
+#define	EVRB_SYSES	0x20	/* SYS_SESSION */
+#define	EVRB_AUXIE	0x00	/* Enable A/UX Interrupt Scheme */
+#define	EVRB_AUXID	0x40	/* Disable A/UX Interrupt Scheme */
+#define	EVRB_SFTWRIE	0x00	/* Software Interrupt ReQuest */
+#define	EVRB_SFTWRID	0x80	/* Software Interrupt ReQuest */
+
+/*
+ *	VIA2 A register is the interrupt lines raised off the nubus
+ *	slots.
+ *      The below info is from 'Macintosh Family Hardware.'
+ *      MkLinux calls the 'IIci internal video IRQ' below the 'RBV slot 0 irq.'
+ *      It also notes that the slot $9 IRQ is the 'Ethernet IRQ' and
+ *      defines the 'Video IRQ' as 0x40 for the 'EVR' VIA work-alike.
+ *      Perhaps OSS uses vRAM1 and vRAM2 for ADB.
+ */
+
+#define VIA2A_vRAM1	0x80	/* RAM size bit 1 (IIci: reserved) */
+#define VIA2A_vRAM0	0x40	/* RAM size bit 0 (IIci: internal video IRQ) */
+#define VIA2A_vIRQE	0x20	/* IRQ from slot $E */
+#define VIA2A_vIRQD	0x10	/* IRQ from slot $D */
+#define VIA2A_vIRQC	0x08	/* IRQ from slot $C */
+#define VIA2A_vIRQB	0x04	/* IRQ from slot $B */
+#define VIA2A_vIRQA	0x02	/* IRQ from slot $A */
+#define VIA2A_vIRQ9	0x01	/* IRQ from slot $9 */
+
+/* RAM size bits decoded as follows:
+ * bit1 bit0  size of ICs in bank A
+ *  0    0    256 kbit
+ *  0    1    1 Mbit
+ *  1    0    4 Mbit
+ *  1    1   16 Mbit
+ */
+
+/*
+ *	Register B has the fun stuff in it
+ */
+
+#define VIA2B_vVBL	0x80	/* VBL output to VIA1 (60.15Hz) driven by
+				 * timer T1.
+				 * on IIci, parity test: 0=test mode.
+				 * [MkLinux] RBV_PARODD: 1=odd,0=even. */
+#define VIA2B_vSndJck	0x40	/* External sound jack status.
+				 * 0=plug is inserted.  On SE/30, always 0 */
+#define VIA2B_vTfr0	0x20	/* Transfer mode bit 0 ack from NuBus */
+#define VIA2B_vTfr1	0x10	/* Transfer mode bit 1 ack from NuBus */
+#define VIA2B_vMode32	0x08	/* 24/32bit switch - doubles as cache flush
+				 * on II, AMU/PMMU control.
+				 *   if AMU, 0=24bit to 32bit translation
+				 *   if PMMU, 1=PMMU is accessing page table.
+				 * on SE/30 tied low.
+				 * on IIx,IIcx,IIfx, unused.
+				 * on IIci/RBV, cache control. 0=flush cache.
+				 */
+#define VIA2B_vPower	0x04	/* Power off, 0=shut off power.
+				 * on SE/30 this signal sent to PDS card. */
+#define VIA2B_vBusLk	0x02	/* Lock NuBus transactions, 0=locked.
+				 * on SE/30 sent to PDS card. */
+#define VIA2B_vCDis	0x01	/* Cache control. On IIci, 1=disable cache card
+				 * on others, 0=disable processor's instruction
+				 * and data caches. */
+
+/* Apple sez: http://developer.apple.com/technotes/ov/ov_04.html
+ * Another example of a valid function that has no ROM support is the use
+ * of the alternate video page for page-flipping animation. Since there
+ * is no ROM call to flip pages, it is necessary to go play with the
+ * right bit in the VIA chip (6522 Versatile Interface Adapter).
+ * [CSA: don't know which one this is, but it's one of 'em!]
+ */
+
+/*
+ *	6522 registers - see databook.
+ * CSA: Assignments for VIA1 confirmed from CHRP spec.
+ */
+
+/* partial address decode.  0xYYXX : XX part for RBV, YY part for VIA */
+/* Note: 15 VIA regs, 8 RBV regs */
+
+#define vBufB	0x0000	/* [VIA/RBV]  Register B */
+#define vBufAH	0x0200  /* [VIA only] Buffer A, with handshake. DON'T USE! */
+#define vDirB	0x0400  /* [VIA only] Data Direction Register B. */
+#define vDirA	0x0600  /* [VIA only] Data Direction Register A. */
+#define vT1CL	0x0800  /* [VIA only] Timer one counter low. */
+#define vT1CH	0x0a00  /* [VIA only] Timer one counter high. */
+#define vT1LL	0x0c00  /* [VIA only] Timer one latches low. */
+#define vT1LH	0x0e00  /* [VIA only] Timer one latches high. */
+#define vT2CL	0x1000  /* [VIA only] Timer two counter low. */
+#define vT2CH	0x1200  /* [VIA only] Timer two counter high. */
+#define vSR	0x1400  /* [VIA only] Shift register. */
+#define vACR	0x1600  /* [VIA only] Auxiliary control register. */
+#define vPCR	0x1800  /* [VIA only] Peripheral control register. */
+                        /*            CHRP sez never ever to *write* this.
+			 *            Mac family says never to *change* this.
+			 * In fact we need to initialize it once at start. */
+#define vIFR	0x1a00  /* [VIA/RBV]  Interrupt flag register. */
+#define vIER	0x1c00  /* [VIA/RBV]  Interrupt enable register. */
+#define vBufA	0x1e00  /* [VIA/RBV] register A (no handshake) */
+
+/* The RBV only decodes the bottom eight address lines; the VIA doesn't
+ * decode the bottom eight -- so vBufB | rBufB will always get you BufB */
+/* CSA: in fact, only bits 0,1, and 4 seem to be decoded.
+ * BUT note the values for rIER and rIFR, where the top 8 bits *do* seem
+ * to matter.  In fact *all* of the top 8 bits seem to matter;
+ * setting rIER=0x1813 and rIFR=0x1803 doesn't work, either.
+ * Perhaps some sort of 'compatibility mode' is built-in? [21-May-1999]
+ */
+
+#define rBufB   0x0000  /* [VIA/RBV]  Register B */
+#define rExp	0x0001	/* [RBV only] RBV future expansion (always 0) */
+#define rSIFR	0x0002  /* [RBV only] RBV slot interrupts register. */
+#define rIFR	0x1a03  /* [VIA/RBV]  RBV interrupt flag register. */
+#define rMonP   0x0010  /* [RBV only] RBV video monitor type. */
+#define rChpT   0x0011  /* [RBV only] RBV test mode register (reads as 0). */
+#define rSIER   0x0012  /* [RBV only] RBV slot interrupt enables. */
+#define rIER    0x1c13  /* [VIA/RBV]  RBV interrupt flag enable register. */
+#define rBufA	rSIFR   /* the 'slot interrupts register' is BufA on a VIA */
+
+/*
+ * Video monitor parameters, for rMonP:
+ */
+#define RBV_DEPTH  0x07	/* bits per pixel: 000=1,001=2,010=4,011=8 */
+#define RBV_MONID  0x38	/* monitor type, as below. */
+#define RBV_VIDOFF 0x40	/* 1 turns off onboard video */
+/* Supported monitor types: */
+#define MON_15BW   (1<<3) /* 15" BW portrait. */
+#define MON_IIGS   (2<<3) /* 12" color (modified IIGS monitor). */
+#define MON_15RGB  (5<<3) /* 15" RGB portrait. */
+#define MON_12OR13 (6<<3) /* 12" BW or 13" RGB. */
+#define MON_NONE   (7<<3) /* No monitor attached. */
+
+/* To clarify IER manipulations */
+#define IER_SET_BIT(b) (0x80 | (1<<(b)) )
+#define IER_CLR_BIT(b) (0x7F & (1<<(b)) )
+
+#ifndef __ASSEMBLY__
+
+extern volatile __u8 *via1,*via2;
+extern int rbv_present,via_alt_mapping;
+
+struct irq_desc;
+
+extern void via_l2_flush(int writeback);
+extern void via_register_interrupts(void);
+extern void via_irq_enable(int);
+extern void via_irq_disable(int);
+extern void via_nubus_irq_startup(int irq);
+extern void via_nubus_irq_shutdown(int irq);
+extern void via1_irq(struct irq_desc *desc);
+extern void via1_set_head(int);
+extern int via2_scsi_drq_pending(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MAC_VIA_H_ */