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, 324 insertions, 0 deletions

diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c
new file mode 100644
index 000000000..584c25b58
--- /dev/null
+++ b/arch/x86/pci/ce4100.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright(c) 2010 Intel Corporation. All rights reserved.
+ *
+ *  Contact Information:
+ *    Intel Corporation
+ *    2200 Mission College Blvd.
+ *    Santa Clara, CA  97052
+ *
+ * This provides access methods for PCI registers that mis-behave on
+ * the CE4100. Each register can be assigned a private init, read and
+ * write routine. The exception to this is the bridge device.  The
+ * bridge device is the only device on bus zero (0) that requires any
+ * fixup so it is a special case ATM
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ce4100.h>
+#include <asm/pci_x86.h>
+
+struct sim_reg {
+	u32 value;
+	u32 mask;
+};
+
+struct sim_dev_reg {
+	int dev_func;
+	int reg;
+	void (*init)(struct sim_dev_reg *reg);
+	void (*read)(struct sim_dev_reg *reg, u32 *value);
+	void (*write)(struct sim_dev_reg *reg, u32 value);
+	struct sim_reg sim_reg;
+};
+
+struct sim_reg_op {
+	void (*init)(struct sim_dev_reg *reg);
+	void (*read)(struct sim_dev_reg *reg, u32 value);
+	void (*write)(struct sim_dev_reg *reg, u32 value);
+};
+
+#define MB (1024 * 1024)
+#define KB (1024)
+#define SIZE_TO_MASK(size) (~(size - 1))
+
+#define DEFINE_REG(device, func, offset, size, init_op, read_op, write_op)\
+{ PCI_DEVFN(device, func), offset, init_op, read_op, write_op,\
+	{0, SIZE_TO_MASK(size)} },
+
+/*
+ * All read/write functions are called with pci_config_lock held.
+ */
+static void reg_init(struct sim_dev_reg *reg)
+{
+	pci_direct_conf1.read(0, 1, reg->dev_func, reg->reg, 4,
+			      &reg->sim_reg.value);
+}
+
+static void reg_read(struct sim_dev_reg *reg, u32 *value)
+{
+	*value = reg->sim_reg.value;
+}
+
+static void reg_write(struct sim_dev_reg *reg, u32 value)
+{
+	reg->sim_reg.value = (value & reg->sim_reg.mask) |
+		(reg->sim_reg.value & ~reg->sim_reg.mask);
+}
+
+static void sata_reg_init(struct sim_dev_reg *reg)
+{
+	pci_direct_conf1.read(0, 1, PCI_DEVFN(14, 0), 0x10, 4,
+			      &reg->sim_reg.value);
+	reg->sim_reg.value += 0x400;
+}
+
+static void ehci_reg_read(struct sim_dev_reg *reg, u32 *value)
+{
+	reg_read(reg, value);
+	if (*value != reg->sim_reg.mask)
+		*value |= 0x100;
+}
+
+void sata_revid_init(struct sim_dev_reg *reg)
+{
+	reg->sim_reg.value = 0x01060100;
+	reg->sim_reg.mask = 0;
+}
+
+static void sata_revid_read(struct sim_dev_reg *reg, u32 *value)
+{
+	reg_read(reg, value);
+}
+
+static void reg_noirq_read(struct sim_dev_reg *reg, u32 *value)
+{
+	/* force interrupt pin value to 0 */
+	*value = reg->sim_reg.value & 0xfff00ff;
+}
+
+static struct sim_dev_reg bus1_fixups[] = {
+	DEFINE_REG(2, 0, 0x10, (16*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(2, 0, 0x14, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(2, 1, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(3, 0, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(4, 0, 0x10, (128*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(4, 1, 0x10, (128*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(6, 0, 0x10, (512*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(6, 1, 0x10, (512*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(6, 2, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(8, 0, 0x10, (1*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(8, 1, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(8, 2, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(9, 0, 0x10 , (1*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(9, 0, 0x14, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(10, 0, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(10, 0, 0x14, (256*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 0, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 0, 0x14, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 1, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 2, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 2, 0x14, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 2, 0x18, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 3, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 3, 0x14, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 4, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 5, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 6, 0x10, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 7, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 7, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
+	DEFINE_REG(12, 0, 0x10, (128*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(12, 0, 0x14, (256), reg_init, reg_read, reg_write)
+	DEFINE_REG(12, 1, 0x10, (1024), reg_init, reg_read, reg_write)
+	DEFINE_REG(13, 0, 0x10, (32*KB), reg_init, ehci_reg_read, reg_write)
+	DEFINE_REG(13, 1, 0x10, (32*KB), reg_init, ehci_reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x8,  0, sata_revid_init, sata_revid_read, 0)
+	DEFINE_REG(14, 0, 0x10, 0, reg_init, reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x14, 0, reg_init, reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x18, 0, reg_init, reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x1C, 0, reg_init, reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x20, 0, reg_init, reg_read, reg_write)
+	DEFINE_REG(14, 0, 0x24, (0x200), sata_reg_init, reg_read, reg_write)
+	DEFINE_REG(15, 0, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(15, 0, 0x14, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(16, 0, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(16, 0, 0x14, (64*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(16, 0, 0x18, (64*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(16, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
+	DEFINE_REG(17, 0, 0x10, (128*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(18, 0, 0x10, (1*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(18, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
+};
+
+static void __init init_sim_regs(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
+		if (bus1_fixups[i].init)
+			bus1_fixups[i].init(&bus1_fixups[i]);
+	}
+}
+
+static inline void extract_bytes(u32 *value, int reg, int len)
+{
+	uint32_t mask;
+
+	*value >>= ((reg & 3) * 8);
+	mask = 0xFFFFFFFF >> ((4 - len) * 8);
+	*value &= mask;
+}
+
+int bridge_read(unsigned int devfn, int reg, int len, u32 *value)
+{
+	u32 av_bridge_base, av_bridge_limit;
+	int retval = 0;
+
+	switch (reg) {
+	/* Make BARs appear to not request any memory. */
+	case PCI_BASE_ADDRESS_0:
+	case PCI_BASE_ADDRESS_0 + 1:
+	case PCI_BASE_ADDRESS_0 + 2:
+	case PCI_BASE_ADDRESS_0 + 3:
+		*value = 0;
+		break;
+
+		/* Since subordinate bus number register is hardwired
+		 * to zero and read only, so do the simulation.
+		 */
+	case PCI_PRIMARY_BUS:
+		if (len == 4)
+			*value = 0x00010100;
+		break;
+
+	case PCI_SUBORDINATE_BUS:
+		*value = 1;
+		break;
+
+	case PCI_MEMORY_BASE:
+	case PCI_MEMORY_LIMIT:
+		/* Get the A/V bridge base address. */
+		pci_direct_conf1.read(0, 0, devfn,
+				PCI_BASE_ADDRESS_0, 4, &av_bridge_base);
+
+		av_bridge_limit = av_bridge_base + (512*MB - 1);
+		av_bridge_limit >>= 16;
+		av_bridge_limit &= 0xFFF0;
+
+		av_bridge_base >>= 16;
+		av_bridge_base &= 0xFFF0;
+
+		if (reg == PCI_MEMORY_LIMIT)
+			*value = av_bridge_limit;
+		else if (len == 2)
+			*value = av_bridge_base;
+		else
+			*value = (av_bridge_limit << 16) | av_bridge_base;
+		break;
+		/* Make prefetchable memory limit smaller than prefetchable
+		 * memory base, so not claim prefetchable memory space.
+		 */
+	case PCI_PREF_MEMORY_BASE:
+		*value = 0xFFF0;
+		break;
+	case PCI_PREF_MEMORY_LIMIT:
+		*value = 0x0;
+		break;
+		/* Make IO limit smaller than IO base, so not claim IO space. */
+	case PCI_IO_BASE:
+		*value = 0xF0;
+		break;
+	case PCI_IO_LIMIT:
+		*value = 0;
+		break;
+	default:
+		retval = 1;
+	}
+	return retval;
+}
+
+static int ce4100_bus1_read(unsigned int devfn, int reg, int len, u32 *value)
+{
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
+		if (bus1_fixups[i].dev_func == devfn &&
+		    bus1_fixups[i].reg == (reg & ~3) &&
+		    bus1_fixups[i].read) {
+
+			raw_spin_lock_irqsave(&pci_config_lock, flags);
+			bus1_fixups[i].read(&(bus1_fixups[i]), value);
+			raw_spin_unlock_irqrestore(&pci_config_lock, flags);
+			extract_bytes(value, reg, len);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+static int ce4100_conf_read(unsigned int seg, unsigned int bus,
+			    unsigned int devfn, int reg, int len, u32 *value)
+{
+	WARN_ON(seg);
+
+	if (bus == 1 && !ce4100_bus1_read(devfn, reg, len, value))
+		return 0;
+
+	if (bus == 0 && (PCI_DEVFN(1, 0) == devfn) &&
+	    !bridge_read(devfn, reg, len, value))
+		return 0;
+
+	return pci_direct_conf1.read(seg, bus, devfn, reg, len, value);
+}
+
+static int ce4100_bus1_write(unsigned int devfn, int reg, int len, u32 value)
+{
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
+		if (bus1_fixups[i].dev_func == devfn &&
+		    bus1_fixups[i].reg == (reg & ~3) &&
+		    bus1_fixups[i].write) {
+
+			raw_spin_lock_irqsave(&pci_config_lock, flags);
+			bus1_fixups[i].write(&(bus1_fixups[i]), value);
+			raw_spin_unlock_irqrestore(&pci_config_lock, flags);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+static int ce4100_conf_write(unsigned int seg, unsigned int bus,
+			     unsigned int devfn, int reg, int len, u32 value)
+{
+	WARN_ON(seg);
+
+	if (bus == 1 && !ce4100_bus1_write(devfn, reg, len, value))
+		return 0;
+
+	/* Discard writes to A/V bridge BAR. */
+	if (bus == 0 && PCI_DEVFN(1, 0) == devfn &&
+	    ((reg & ~3) == PCI_BASE_ADDRESS_0))
+		return 0;
+
+	return pci_direct_conf1.write(seg, bus, devfn, reg, len, value);
+}
+
+static const struct pci_raw_ops ce4100_pci_conf = {
+	.read	= ce4100_conf_read,
+	.write	= ce4100_conf_write,
+};
+
+int __init ce4100_pci_init(void)
+{
+	init_sim_regs();
+	raw_pci_ops = &ce4100_pci_conf;
+	/* Indicate caller that it should invoke pci_legacy_init() */
+	return 1;
+}