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, 975 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
new file mode 100644
index 000000000..e87360a0f
--- /dev/null
+++ b/arch/powerpc/platforms/ps3/device-init.c
@@ -0,0 +1,975 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  PS3 device registration routines.
+ *
+ *  Copyright (C) 2007 Sony Computer Entertainment Inc.
+ *  Copyright 2007 Sony Corp.
+ */
+
+#include <linux/delay.h>
+#include <linux/freezer.h>
+#include <linux/kernel.h>
+#include <linux/kthread.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/reboot.h>
+#include <linux/rcuwait.h>
+
+#include <asm/firmware.h>
+#include <asm/lv1call.h>
+#include <asm/ps3stor.h>
+
+#include "platform.h"
+
+static int __init ps3_register_lpm_devices(void)
+{
+	int result;
+	u64 tmp1;
+	u64 tmp2;
+	struct ps3_system_bus_device *dev;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->match_id = PS3_MATCH_ID_LPM;
+	dev->dev_type = PS3_DEVICE_TYPE_LPM;
+
+	/* The current lpm driver only supports a single BE processor. */
+
+	result = ps3_repository_read_be_node_id(0, &dev->lpm.node_id);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_repository_read_be_node_id failed \n",
+			__func__, __LINE__);
+		goto fail_read_repo;
+	}
+
+	result = ps3_repository_read_lpm_privileges(dev->lpm.node_id, &tmp1,
+		&dev->lpm.rights);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_repository_read_lpm_privileges failed\n",
+			__func__, __LINE__);
+		goto fail_read_repo;
+	}
+
+	lv1_get_logical_partition_id(&tmp2);
+
+	if (tmp1 != tmp2) {
+		pr_debug("%s:%d: wrong lpar\n",
+			__func__, __LINE__);
+		result = -ENODEV;
+		goto fail_rights;
+	}
+
+	if (!(dev->lpm.rights & PS3_LPM_RIGHTS_USE_LPM)) {
+		pr_debug("%s:%d: don't have rights to use lpm\n",
+			__func__, __LINE__);
+		result = -EPERM;
+		goto fail_rights;
+	}
+
+	pr_debug("%s:%d: pu_id %llu, rights %llu(%llxh)\n",
+		__func__, __LINE__, dev->lpm.pu_id, dev->lpm.rights,
+		dev->lpm.rights);
+
+	result = ps3_repository_read_pu_id(0, &dev->lpm.pu_id);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_repository_read_pu_id failed \n",
+			__func__, __LINE__);
+		goto fail_read_repo;
+	}
+
+	result = ps3_system_bus_device_register(dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_register;
+	}
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+
+fail_register:
+fail_rights:
+fail_read_repo:
+	kfree(dev);
+	pr_debug(" <- %s:%d: failed\n", __func__, __LINE__);
+	return result;
+}
+
+/**
+ * ps3_setup_gelic_device - Setup and register a gelic device instance.
+ *
+ * Allocates memory for a struct ps3_system_bus_device instance, initialises the
+ * structure members, and registers the device instance with the system bus.
+ */
+
+static int __init ps3_setup_gelic_device(
+	const struct ps3_repository_device *repo)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+		struct ps3_dma_region d_region;
+	} *p;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
+	BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_GELIC);
+
+	p = kzalloc(sizeof(struct layout), GFP_KERNEL);
+
+	if (!p) {
+		result = -ENOMEM;
+		goto fail_malloc;
+	}
+
+	p->dev.match_id = PS3_MATCH_ID_GELIC;
+	p->dev.dev_type = PS3_DEVICE_TYPE_SB;
+	p->dev.bus_id = repo->bus_id;
+	p->dev.dev_id = repo->dev_id;
+	p->dev.d_region = &p->d_region;
+
+	result = ps3_repository_find_interrupt(repo,
+		PS3_INTERRUPT_TYPE_EVENT_PORT, &p->dev.interrupt_id);
+
+	if (result) {
+		pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
+			__func__, __LINE__);
+		goto fail_find_interrupt;
+	}
+
+	BUG_ON(p->dev.interrupt_id != 0);
+
+	result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
+		PS3_DMA_OTHER, NULL, 0);
+
+	if (result) {
+		pr_debug("%s:%d ps3_dma_region_init failed\n",
+			__func__, __LINE__);
+		goto fail_dma_init;
+	}
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return result;
+
+fail_device_register:
+fail_dma_init:
+fail_find_interrupt:
+	kfree(p);
+fail_malloc:
+	pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
+	return result;
+}
+
+static int __ref ps3_setup_uhc_device(
+	const struct ps3_repository_device *repo, enum ps3_match_id match_id,
+	enum ps3_interrupt_type interrupt_type, enum ps3_reg_type reg_type)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+		struct ps3_dma_region d_region;
+		struct ps3_mmio_region m_region;
+	} *p;
+	u64 bus_addr;
+	u64 len;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
+	BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_USB);
+
+	p = kzalloc(sizeof(struct layout), GFP_KERNEL);
+
+	if (!p) {
+		result = -ENOMEM;
+		goto fail_malloc;
+	}
+
+	p->dev.match_id = match_id;
+	p->dev.dev_type = PS3_DEVICE_TYPE_SB;
+	p->dev.bus_id = repo->bus_id;
+	p->dev.dev_id = repo->dev_id;
+	p->dev.d_region = &p->d_region;
+	p->dev.m_region = &p->m_region;
+
+	result = ps3_repository_find_interrupt(repo,
+		interrupt_type, &p->dev.interrupt_id);
+
+	if (result) {
+		pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
+			__func__, __LINE__);
+		goto fail_find_interrupt;
+	}
+
+	result = ps3_repository_find_reg(repo, reg_type,
+		&bus_addr, &len);
+
+	if (result) {
+		pr_debug("%s:%d ps3_repository_find_reg failed\n",
+			__func__, __LINE__);
+		goto fail_find_reg;
+	}
+
+	result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
+		PS3_DMA_INTERNAL, NULL, 0);
+
+	if (result) {
+		pr_debug("%s:%d ps3_dma_region_init failed\n",
+			__func__, __LINE__);
+		goto fail_dma_init;
+	}
+
+	result = ps3_mmio_region_init(&p->dev, p->dev.m_region, bus_addr, len,
+		PS3_MMIO_4K);
+
+	if (result) {
+		pr_debug("%s:%d ps3_mmio_region_init failed\n",
+			__func__, __LINE__);
+		goto fail_mmio_init;
+	}
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return result;
+
+fail_device_register:
+fail_mmio_init:
+fail_dma_init:
+fail_find_reg:
+fail_find_interrupt:
+	kfree(p);
+fail_malloc:
+	pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
+	return result;
+}
+
+static int __init ps3_setup_ehci_device(
+	const struct ps3_repository_device *repo)
+{
+	return ps3_setup_uhc_device(repo, PS3_MATCH_ID_EHCI,
+		PS3_INTERRUPT_TYPE_SB_EHCI, PS3_REG_TYPE_SB_EHCI);
+}
+
+static int __init ps3_setup_ohci_device(
+	const struct ps3_repository_device *repo)
+{
+	return ps3_setup_uhc_device(repo, PS3_MATCH_ID_OHCI,
+		PS3_INTERRUPT_TYPE_SB_OHCI, PS3_REG_TYPE_SB_OHCI);
+}
+
+static int __init ps3_setup_vuart_device(enum ps3_match_id match_id,
+	unsigned int port_number)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+	} *p;
+
+	pr_debug(" -> %s:%d: match_id %u, port %u\n", __func__, __LINE__,
+		match_id, port_number);
+
+	p = kzalloc(sizeof(struct layout), GFP_KERNEL);
+
+	if (!p)
+		return -ENOMEM;
+
+	p->dev.match_id = match_id;
+	p->dev.dev_type = PS3_DEVICE_TYPE_VUART;
+	p->dev.port_number = port_number;
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d fail\n", __func__, __LINE__);
+	return result;
+}
+
+static int ps3_setup_storage_dev(const struct ps3_repository_device *repo,
+				 enum ps3_match_id match_id)
+{
+	int result;
+	struct ps3_storage_device *p;
+	u64 port, blk_size, num_blocks;
+	unsigned int num_regions, i;
+
+	pr_debug(" -> %s:%u: match_id %u\n", __func__, __LINE__, match_id);
+
+	result = ps3_repository_read_stor_dev_info(repo->bus_index,
+						   repo->dev_index, &port,
+						   &blk_size, &num_blocks,
+						   &num_regions);
+	if (result) {
+		printk(KERN_ERR "%s:%u: _read_stor_dev_info failed %d\n",
+		       __func__, __LINE__, result);
+		return -ENODEV;
+	}
+
+	pr_debug("%s:%u: (%u:%u:%u): port %llu blk_size %llu num_blocks %llu "
+		 "num_regions %u\n", __func__, __LINE__, repo->bus_index,
+		 repo->dev_index, repo->dev_type, port, blk_size, num_blocks,
+		 num_regions);
+
+	p = kzalloc(struct_size(p, regions, num_regions), GFP_KERNEL);
+	if (!p) {
+		result = -ENOMEM;
+		goto fail_malloc;
+	}
+
+	p->sbd.match_id = match_id;
+	p->sbd.dev_type = PS3_DEVICE_TYPE_SB;
+	p->sbd.bus_id = repo->bus_id;
+	p->sbd.dev_id = repo->dev_id;
+	p->sbd.d_region = &p->dma_region;
+	p->blk_size = blk_size;
+	p->num_regions = num_regions;
+
+	result = ps3_repository_find_interrupt(repo,
+					       PS3_INTERRUPT_TYPE_EVENT_PORT,
+					       &p->sbd.interrupt_id);
+	if (result) {
+		printk(KERN_ERR "%s:%u: find_interrupt failed %d\n", __func__,
+		       __LINE__, result);
+		result = -ENODEV;
+		goto fail_find_interrupt;
+	}
+
+	for (i = 0; i < num_regions; i++) {
+		unsigned int id;
+		u64 start, size;
+
+		result = ps3_repository_read_stor_dev_region(repo->bus_index,
+							     repo->dev_index,
+							     i, &id, &start,
+							     &size);
+		if (result) {
+			printk(KERN_ERR
+			       "%s:%u: read_stor_dev_region failed %d\n",
+			       __func__, __LINE__, result);
+			result = -ENODEV;
+			goto fail_read_region;
+		}
+		pr_debug("%s:%u: region %u: id %u start %llu size %llu\n",
+			 __func__, __LINE__, i, id, start, size);
+
+		p->regions[i].id = id;
+		p->regions[i].start = start;
+		p->regions[i].size = size;
+	}
+
+	result = ps3_system_bus_device_register(&p->sbd);
+	if (result) {
+		pr_debug("%s:%u ps3_system_bus_device_register failed\n",
+			 __func__, __LINE__);
+		goto fail_device_register;
+	}
+
+	pr_debug(" <- %s:%u\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+fail_read_region:
+fail_find_interrupt:
+	kfree(p);
+fail_malloc:
+	pr_debug(" <- %s:%u: fail.\n", __func__, __LINE__);
+	return result;
+}
+
+static int __init ps3_register_vuart_devices(void)
+{
+	int result;
+	unsigned int port_number;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	result = ps3_repository_read_vuart_av_port(&port_number);
+	if (result)
+		port_number = 0; /* av default */
+
+	result = ps3_setup_vuart_device(PS3_MATCH_ID_AV_SETTINGS, port_number);
+	WARN_ON(result);
+
+	result = ps3_repository_read_vuart_sysmgr_port(&port_number);
+	if (result)
+		port_number = 2; /* sysmgr default */
+
+	result = ps3_setup_vuart_device(PS3_MATCH_ID_SYSTEM_MANAGER,
+		port_number);
+	WARN_ON(result);
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return result;
+}
+
+static int __init ps3_register_sound_devices(void)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+		struct ps3_dma_region d_region;
+		struct ps3_mmio_region m_region;
+	} *p;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	p->dev.match_id = PS3_MATCH_ID_SOUND;
+	p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
+	p->dev.d_region = &p->d_region;
+	p->dev.m_region = &p->m_region;
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
+	return result;
+}
+
+static int __init ps3_register_graphics_devices(void)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+	} *p;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	p = kzalloc(sizeof(struct layout), GFP_KERNEL);
+
+	if (!p)
+		return -ENOMEM;
+
+	p->dev.match_id = PS3_MATCH_ID_GPU;
+	p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
+	p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
+	return result;
+}
+
+static int __init ps3_register_ramdisk_device(void)
+{
+	int result;
+	struct layout {
+		struct ps3_system_bus_device dev;
+	} *p;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	p = kzalloc(sizeof(struct layout), GFP_KERNEL);
+
+	if (!p)
+		return -ENOMEM;
+
+	p->dev.match_id = PS3_MATCH_ID_GPU;
+	p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK;
+	p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
+
+	result = ps3_system_bus_device_register(&p->dev);
+
+	if (result) {
+		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+			__func__, __LINE__);
+		goto fail_device_register;
+	}
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
+	return result;
+}
+
+/**
+ * ps3_setup_dynamic_device - Setup a dynamic device from the repository
+ */
+
+static int ps3_setup_dynamic_device(const struct ps3_repository_device *repo)
+{
+	int result;
+
+	switch (repo->dev_type) {
+	case PS3_DEV_TYPE_STOR_DISK:
+		result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_DISK);
+
+		/* Some devices are not accessible from the Other OS lpar. */
+		if (result == -ENODEV) {
+			result = 0;
+			pr_debug("%s:%u: not accessible\n", __func__,
+				 __LINE__);
+		}
+
+		if (result)
+			pr_debug("%s:%u ps3_setup_storage_dev failed\n",
+				 __func__, __LINE__);
+		break;
+
+	case PS3_DEV_TYPE_STOR_ROM:
+		result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_ROM);
+		if (result)
+			pr_debug("%s:%u ps3_setup_storage_dev failed\n",
+				 __func__, __LINE__);
+		break;
+
+	case PS3_DEV_TYPE_STOR_FLASH:
+		result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_FLASH);
+		if (result)
+			pr_debug("%s:%u ps3_setup_storage_dev failed\n",
+				 __func__, __LINE__);
+		break;
+
+	default:
+		result = 0;
+		pr_debug("%s:%u: unsupported dev_type %u\n", __func__, __LINE__,
+			repo->dev_type);
+	}
+
+	return result;
+}
+
+/**
+ * ps3_setup_static_device - Setup a static device from the repository
+ */
+
+static int __init ps3_setup_static_device(const struct ps3_repository_device *repo)
+{
+	int result;
+
+	switch (repo->dev_type) {
+	case PS3_DEV_TYPE_SB_GELIC:
+		result = ps3_setup_gelic_device(repo);
+		if (result) {
+			pr_debug("%s:%d ps3_setup_gelic_device failed\n",
+				__func__, __LINE__);
+		}
+		break;
+	case PS3_DEV_TYPE_SB_USB:
+
+		/* Each USB device has both an EHCI and an OHCI HC */
+
+		result = ps3_setup_ehci_device(repo);
+
+		if (result) {
+			pr_debug("%s:%d ps3_setup_ehci_device failed\n",
+				__func__, __LINE__);
+		}
+
+		result = ps3_setup_ohci_device(repo);
+
+		if (result) {
+			pr_debug("%s:%d ps3_setup_ohci_device failed\n",
+				__func__, __LINE__);
+		}
+		break;
+
+	default:
+		return ps3_setup_dynamic_device(repo);
+	}
+
+	return result;
+}
+
+static void ps3_find_and_add_device(u64 bus_id, u64 dev_id)
+{
+	struct ps3_repository_device repo;
+	int res;
+	unsigned int retries;
+	unsigned long rem;
+
+	/*
+	 * On some firmware versions (e.g. 1.90), the device may not show up
+	 * in the repository immediately
+	 */
+	for (retries = 0; retries < 10; retries++) {
+		res = ps3_repository_find_device_by_id(&repo, bus_id, dev_id);
+		if (!res)
+			goto found;
+
+		rem = msleep_interruptible(100);
+		if (rem)
+			break;
+	}
+	pr_warn("%s:%u: device %llu:%llu not found\n",
+		__func__, __LINE__, bus_id, dev_id);
+	return;
+
+found:
+	if (retries)
+		pr_debug("%s:%u: device %llu:%llu found after %u retries\n",
+			 __func__, __LINE__, bus_id, dev_id, retries);
+
+	ps3_setup_dynamic_device(&repo);
+	return;
+}
+
+#define PS3_NOTIFICATION_DEV_ID		ULONG_MAX
+#define PS3_NOTIFICATION_INTERRUPT_ID	0
+
+struct ps3_notification_device {
+	struct ps3_system_bus_device sbd;
+	spinlock_t lock;
+	u64 tag;
+	u64 lv1_status;
+	struct rcuwait wait;
+	bool done;
+};
+
+enum ps3_notify_type {
+	notify_device_ready = 0,
+	notify_region_probe = 1,
+	notify_region_update = 2,
+};
+
+struct ps3_notify_cmd {
+	u64 operation_code;		/* must be zero */
+	u64 event_mask;			/* OR of 1UL << enum ps3_notify_type */
+};
+
+struct ps3_notify_event {
+	u64 event_type;			/* enum ps3_notify_type */
+	u64 bus_id;
+	u64 dev_id;
+	u64 dev_type;
+	u64 dev_port;
+};
+
+static irqreturn_t ps3_notification_interrupt(int irq, void *data)
+{
+	struct ps3_notification_device *dev = data;
+	int res;
+	u64 tag, status;
+
+	spin_lock(&dev->lock);
+	res = lv1_storage_get_async_status(PS3_NOTIFICATION_DEV_ID, &tag,
+					   &status);
+	if (tag != dev->tag)
+		pr_err("%s:%u: tag mismatch, got %llx, expected %llx\n",
+		       __func__, __LINE__, tag, dev->tag);
+
+	if (res) {
+		pr_err("%s:%u: res %d status 0x%llx\n", __func__, __LINE__, res,
+		       status);
+	} else {
+		pr_debug("%s:%u: completed, status 0x%llx\n", __func__,
+			 __LINE__, status);
+		dev->lv1_status = status;
+		dev->done = true;
+		rcuwait_wake_up(&dev->wait);
+	}
+	spin_unlock(&dev->lock);
+	return IRQ_HANDLED;
+}
+
+static int ps3_notification_read_write(struct ps3_notification_device *dev,
+				       u64 lpar, int write)
+{
+	const char *op = write ? "write" : "read";
+	unsigned long flags;
+	int res;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	res = write ? lv1_storage_write(dev->sbd.dev_id, 0, 0, 1, 0, lpar,
+					&dev->tag)
+		    : lv1_storage_read(dev->sbd.dev_id, 0, 0, 1, 0, lpar,
+				       &dev->tag);
+	dev->done = false;
+	spin_unlock_irqrestore(&dev->lock, flags);
+	if (res) {
+		pr_err("%s:%u: %s failed %d\n", __func__, __LINE__, op, res);
+		return -EPERM;
+	}
+	pr_debug("%s:%u: notification %s issued\n", __func__, __LINE__, op);
+
+	rcuwait_wait_event(&dev->wait, dev->done || kthread_should_stop(), TASK_IDLE);
+
+	if (kthread_should_stop())
+		res = -EINTR;
+
+	if (dev->lv1_status) {
+		pr_err("%s:%u: %s not completed, status 0x%llx\n", __func__,
+		       __LINE__, op, dev->lv1_status);
+		return -EIO;
+	}
+	pr_debug("%s:%u: notification %s completed\n", __func__, __LINE__, op);
+
+	return 0;
+}
+
+static struct task_struct *probe_task;
+
+/**
+ * ps3_probe_thread - Background repository probing at system startup.
+ *
+ * This implementation only supports background probing on a single bus.
+ * It uses the hypervisor's storage device notification mechanism to wait until
+ * a storage device is ready.  The device notification mechanism uses a
+ * pseudo device to asynchronously notify the guest when storage devices become
+ * ready.  The notification device has a block size of 512 bytes.
+ */
+
+static int ps3_probe_thread(void *data)
+{
+	struct ps3_notification_device dev;
+	int res;
+	unsigned int irq;
+	u64 lpar;
+	void *buf;
+	struct ps3_notify_cmd *notify_cmd;
+	struct ps3_notify_event *notify_event;
+
+	pr_debug(" -> %s:%u: kthread started\n", __func__, __LINE__);
+
+	buf = kzalloc(512, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	lpar = ps3_mm_phys_to_lpar(__pa(buf));
+	notify_cmd = buf;
+	notify_event = buf;
+
+	/* dummy system bus device */
+	dev.sbd.bus_id = (u64)data;
+	dev.sbd.dev_id = PS3_NOTIFICATION_DEV_ID;
+	dev.sbd.interrupt_id = PS3_NOTIFICATION_INTERRUPT_ID;
+
+	res = lv1_open_device(dev.sbd.bus_id, dev.sbd.dev_id, 0);
+	if (res) {
+		pr_err("%s:%u: lv1_open_device failed %s\n", __func__,
+		       __LINE__, ps3_result(res));
+		goto fail_free;
+	}
+
+	res = ps3_sb_event_receive_port_setup(&dev.sbd, PS3_BINDING_CPU_ANY,
+					      &irq);
+	if (res) {
+		pr_err("%s:%u: ps3_sb_event_receive_port_setup failed %d\n",
+		       __func__, __LINE__, res);
+	       goto fail_close_device;
+	}
+
+	spin_lock_init(&dev.lock);
+	rcuwait_init(&dev.wait);
+
+	res = request_irq(irq, ps3_notification_interrupt, 0,
+			  "ps3_notification", &dev);
+	if (res) {
+		pr_err("%s:%u: request_irq failed %d\n", __func__, __LINE__,
+		       res);
+		goto fail_sb_event_receive_port_destroy;
+	}
+
+	/* Setup and write the request for device notification. */
+	notify_cmd->operation_code = 0; /* must be zero */
+	notify_cmd->event_mask = 1UL << notify_region_probe;
+
+	res = ps3_notification_read_write(&dev, lpar, 1);
+	if (res)
+		goto fail_free_irq;
+
+	/* Loop here processing the requested notification events. */
+	do {
+		try_to_freeze();
+
+		memset(notify_event, 0, sizeof(*notify_event));
+
+		res = ps3_notification_read_write(&dev, lpar, 0);
+		if (res)
+			break;
+
+		pr_debug("%s:%u: notify event type 0x%llx bus id %llu dev id %llu"
+			 " type %llu port %llu\n", __func__, __LINE__,
+			 notify_event->event_type, notify_event->bus_id,
+			 notify_event->dev_id, notify_event->dev_type,
+			 notify_event->dev_port);
+
+		if (notify_event->event_type != notify_region_probe ||
+		    notify_event->bus_id != dev.sbd.bus_id) {
+			pr_warn("%s:%u: bad notify_event: event %llu, dev_id %llu, dev_type %llu\n",
+				__func__, __LINE__, notify_event->event_type,
+				notify_event->dev_id, notify_event->dev_type);
+			continue;
+		}
+
+		ps3_find_and_add_device(dev.sbd.bus_id, notify_event->dev_id);
+
+	} while (!kthread_should_stop());
+
+fail_free_irq:
+	free_irq(irq, &dev);
+fail_sb_event_receive_port_destroy:
+	ps3_sb_event_receive_port_destroy(&dev.sbd, irq);
+fail_close_device:
+	lv1_close_device(dev.sbd.bus_id, dev.sbd.dev_id);
+fail_free:
+	kfree(buf);
+
+	probe_task = NULL;
+
+	pr_debug(" <- %s:%u: kthread finished\n", __func__, __LINE__);
+
+	return 0;
+}
+
+/**
+ * ps3_stop_probe_thread - Stops the background probe thread.
+ *
+ */
+
+static int ps3_stop_probe_thread(struct notifier_block *nb, unsigned long code,
+				 void *data)
+{
+	if (probe_task)
+		kthread_stop(probe_task);
+	return 0;
+}
+
+static struct notifier_block nb = {
+	.notifier_call = ps3_stop_probe_thread
+};
+
+/**
+ * ps3_start_probe_thread - Starts the background probe thread.
+ *
+ */
+
+static int __init ps3_start_probe_thread(enum ps3_bus_type bus_type)
+{
+	int result;
+	struct task_struct *task;
+	struct ps3_repository_device repo;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	memset(&repo, 0, sizeof(repo));
+
+	repo.bus_type = bus_type;
+
+	result = ps3_repository_find_bus(repo.bus_type, 0, &repo.bus_index);
+
+	if (result) {
+		printk(KERN_ERR "%s: Cannot find bus (%d)\n", __func__, result);
+		return -ENODEV;
+	}
+
+	result = ps3_repository_read_bus_id(repo.bus_index, &repo.bus_id);
+
+	if (result) {
+		printk(KERN_ERR "%s: read_bus_id failed %d\n", __func__,
+			result);
+		return -ENODEV;
+	}
+
+	task = kthread_run(ps3_probe_thread, (void *)repo.bus_id,
+			   "ps3-probe-%u", bus_type);
+
+	if (IS_ERR(task)) {
+		result = PTR_ERR(task);
+		printk(KERN_ERR "%s: kthread_run failed %d\n", __func__,
+		       result);
+		return result;
+	}
+
+	probe_task = task;
+	register_reboot_notifier(&nb);
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+}
+
+/**
+ * ps3_register_devices - Probe the system and register devices found.
+ *
+ * A device_initcall() routine.
+ */
+
+static int __init ps3_register_devices(void)
+{
+	int result;
+
+	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
+		return -ENODEV;
+
+	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
+	/* ps3_repository_dump_bus_info(); */
+
+	result = ps3_start_probe_thread(PS3_BUS_TYPE_STORAGE);
+
+	ps3_register_vuart_devices();
+
+	ps3_register_graphics_devices();
+
+	ps3_repository_find_devices(PS3_BUS_TYPE_SB, ps3_setup_static_device);
+
+	ps3_register_sound_devices();
+
+	ps3_register_lpm_devices();
+
+	ps3_register_ramdisk_device();
+
+	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+}
+
+device_initcall(ps3_register_devices);