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, 529 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
new file mode 100644
index 000000000..f1ac4c742
--- /dev/null
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -0,0 +1,529 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * spu management operations for of based platforms
+ *
+ * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
+ * Copyright 2006 Sony Corp.
+ * (C) Copyright 2007 TOSHIBA CORPORATION
+ */
+
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/export.h>
+#include <linux/ptrace.h>
+#include <linux/wait.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <asm/spu.h>
+#include <asm/spu_priv1.h>
+#include <asm/firmware.h>
+
+#include "spufs/spufs.h"
+#include "interrupt.h"
+
+struct device_node *spu_devnode(struct spu *spu)
+{
+	return spu->devnode;
+}
+
+EXPORT_SYMBOL_GPL(spu_devnode);
+
+static u64 __init find_spu_unit_number(struct device_node *spe)
+{
+	const unsigned int *prop;
+	int proplen;
+
+	/* new device trees should provide the physical-id attribute */
+	prop = of_get_property(spe, "physical-id", &proplen);
+	if (proplen == 4)
+		return (u64)*prop;
+
+	/* celleb device tree provides the unit-id */
+	prop = of_get_property(spe, "unit-id", &proplen);
+	if (proplen == 4)
+		return (u64)*prop;
+
+	/* legacy device trees provide the id in the reg attribute */
+	prop = of_get_property(spe, "reg", &proplen);
+	if (proplen == 4)
+		return (u64)*prop;
+
+	return 0;
+}
+
+static void spu_unmap(struct spu *spu)
+{
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		iounmap(spu->priv1);
+	iounmap(spu->priv2);
+	iounmap(spu->problem);
+	iounmap((__force u8 __iomem *)spu->local_store);
+}
+
+static int __init spu_map_interrupts_old(struct spu *spu,
+	struct device_node *np)
+{
+	unsigned int isrc;
+	const u32 *tmp;
+	int nid;
+
+	/* Get the interrupt source unit from the device-tree */
+	tmp = of_get_property(np, "isrc", NULL);
+	if (!tmp)
+		return -ENODEV;
+	isrc = tmp[0];
+
+	tmp = of_get_property(np->parent->parent, "node-id", NULL);
+	if (!tmp) {
+		printk(KERN_WARNING "%s: can't find node-id\n", __func__);
+		nid = spu->node;
+	} else
+		nid = tmp[0];
+
+	/* Add the node number */
+	isrc |= nid << IIC_IRQ_NODE_SHIFT;
+
+	/* Now map interrupts of all 3 classes */
+	spu->irqs[0] = irq_create_mapping(NULL, IIC_IRQ_CLASS_0 | isrc);
+	spu->irqs[1] = irq_create_mapping(NULL, IIC_IRQ_CLASS_1 | isrc);
+	spu->irqs[2] = irq_create_mapping(NULL, IIC_IRQ_CLASS_2 | isrc);
+
+	/* Right now, we only fail if class 2 failed */
+	if (!spu->irqs[2])
+		return -EINVAL;
+
+	return 0;
+}
+
+static void __iomem * __init spu_map_prop_old(struct spu *spu,
+					      struct device_node *n,
+					      const char *name)
+{
+	const struct address_prop {
+		unsigned long address;
+		unsigned int len;
+	} __attribute__((packed)) *prop;
+	int proplen;
+
+	prop = of_get_property(n, name, &proplen);
+	if (prop == NULL || proplen != sizeof (struct address_prop))
+		return NULL;
+
+	return ioremap(prop->address, prop->len);
+}
+
+static int __init spu_map_device_old(struct spu *spu)
+{
+	struct device_node *node = spu->devnode;
+	const char *prop;
+	int ret;
+
+	ret = -ENODEV;
+	spu->name = of_get_property(node, "name", NULL);
+	if (!spu->name)
+		goto out;
+
+	prop = of_get_property(node, "local-store", NULL);
+	if (!prop)
+		goto out;
+	spu->local_store_phys = *(unsigned long *)prop;
+
+	/* we use local store as ram, not io memory */
+	spu->local_store = (void __force *)
+		spu_map_prop_old(spu, node, "local-store");
+	if (!spu->local_store)
+		goto out;
+
+	prop = of_get_property(node, "problem", NULL);
+	if (!prop)
+		goto out_unmap;
+	spu->problem_phys = *(unsigned long *)prop;
+
+	spu->problem = spu_map_prop_old(spu, node, "problem");
+	if (!spu->problem)
+		goto out_unmap;
+
+	spu->priv2 = spu_map_prop_old(spu, node, "priv2");
+	if (!spu->priv2)
+		goto out_unmap;
+
+	if (!firmware_has_feature(FW_FEATURE_LPAR)) {
+		spu->priv1 = spu_map_prop_old(spu, node, "priv1");
+		if (!spu->priv1)
+			goto out_unmap;
+	}
+
+	ret = 0;
+	goto out;
+
+out_unmap:
+	spu_unmap(spu);
+out:
+	return ret;
+}
+
+static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
+{
+	int i;
+
+	for (i=0; i < 3; i++) {
+		spu->irqs[i] = irq_of_parse_and_map(np, i);
+		if (!spu->irqs[i])
+			goto err;
+	}
+	return 0;
+
+err:
+	pr_debug("failed to map irq %x for spu %s\n", i, spu->name);
+	for (; i >= 0; i--) {
+		if (spu->irqs[i])
+			irq_dispose_mapping(spu->irqs[i]);
+	}
+	return -EINVAL;
+}
+
+static int __init spu_map_resource(struct spu *spu, int nr,
+			    void __iomem** virt, unsigned long *phys)
+{
+	struct device_node *np = spu->devnode;
+	struct resource resource = { };
+	unsigned long len;
+	int ret;
+
+	ret = of_address_to_resource(np, nr, &resource);
+	if (ret)
+		return ret;
+	if (phys)
+		*phys = resource.start;
+	len = resource_size(&resource);
+	*virt = ioremap(resource.start, len);
+	if (!*virt)
+		return -EINVAL;
+	return 0;
+}
+
+static int __init spu_map_device(struct spu *spu)
+{
+	struct device_node *np = spu->devnode;
+	int ret = -ENODEV;
+
+	spu->name = of_get_property(np, "name", NULL);
+	if (!spu->name)
+		goto out;
+
+	ret = spu_map_resource(spu, 0, (void __iomem**)&spu->local_store,
+			       &spu->local_store_phys);
+	if (ret) {
+		pr_debug("spu_new: failed to map %pOF resource 0\n",
+			 np);
+		goto out;
+	}
+	ret = spu_map_resource(spu, 1, (void __iomem**)&spu->problem,
+			       &spu->problem_phys);
+	if (ret) {
+		pr_debug("spu_new: failed to map %pOF resource 1\n",
+			 np);
+		goto out_unmap;
+	}
+	ret = spu_map_resource(spu, 2, (void __iomem**)&spu->priv2, NULL);
+	if (ret) {
+		pr_debug("spu_new: failed to map %pOF resource 2\n",
+			 np);
+		goto out_unmap;
+	}
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		ret = spu_map_resource(spu, 3,
+			       (void __iomem**)&spu->priv1, NULL);
+	if (ret) {
+		pr_debug("spu_new: failed to map %pOF resource 3\n",
+			 np);
+		goto out_unmap;
+	}
+	pr_debug("spu_new: %pOF maps:\n", np);
+	pr_debug("  local store   : 0x%016lx -> 0x%p\n",
+		 spu->local_store_phys, spu->local_store);
+	pr_debug("  problem state : 0x%016lx -> 0x%p\n",
+		 spu->problem_phys, spu->problem);
+	pr_debug("  priv2         :                       0x%p\n", spu->priv2);
+	pr_debug("  priv1         :                       0x%p\n", spu->priv1);
+
+	return 0;
+
+out_unmap:
+	spu_unmap(spu);
+out:
+	pr_debug("failed to map spe %s: %d\n", spu->name, ret);
+	return ret;
+}
+
+static int __init of_enumerate_spus(int (*fn)(void *data))
+{
+	int ret;
+	struct device_node *node;
+	unsigned int n = 0;
+
+	ret = -ENODEV;
+	for_each_node_by_type(node, "spe") {
+		ret = fn(node);
+		if (ret) {
+			printk(KERN_WARNING "%s: Error initializing %pOFn\n",
+				__func__, node);
+			of_node_put(node);
+			break;
+		}
+		n++;
+	}
+	return ret ? ret : n;
+}
+
+static int __init of_create_spu(struct spu *spu, void *data)
+{
+	int ret;
+	struct device_node *spe = (struct device_node *)data;
+	static int legacy_map = 0, legacy_irq = 0;
+
+	spu->devnode = of_node_get(spe);
+	spu->spe_id = find_spu_unit_number(spe);
+
+	spu->node = of_node_to_nid(spe);
+	if (spu->node >= MAX_NUMNODES) {
+		printk(KERN_WARNING "SPE %pOF on node %d ignored,"
+		       " node number too big\n", spe, spu->node);
+		printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	ret = spu_map_device(spu);
+	if (ret) {
+		if (!legacy_map) {
+			legacy_map = 1;
+			printk(KERN_WARNING "%s: Legacy device tree found, "
+				"trying to map old style\n", __func__);
+		}
+		ret = spu_map_device_old(spu);
+		if (ret) {
+			printk(KERN_ERR "Unable to map %s\n",
+				spu->name);
+			goto out;
+		}
+	}
+
+	ret = spu_map_interrupts(spu, spe);
+	if (ret) {
+		if (!legacy_irq) {
+			legacy_irq = 1;
+			printk(KERN_WARNING "%s: Legacy device tree found, "
+				"trying old style irq\n", __func__);
+		}
+		ret = spu_map_interrupts_old(spu, spe);
+		if (ret) {
+			printk(KERN_ERR "%s: could not map interrupts\n",
+				spu->name);
+			goto out_unmap;
+		}
+	}
+
+	pr_debug("Using SPE %s %p %p %p %p %d\n", spu->name,
+		spu->local_store, spu->problem, spu->priv1,
+		spu->priv2, spu->number);
+	goto out;
+
+out_unmap:
+	spu_unmap(spu);
+out:
+	return ret;
+}
+
+static int of_destroy_spu(struct spu *spu)
+{
+	spu_unmap(spu);
+	of_node_put(spu->devnode);
+	return 0;
+}
+
+static void enable_spu_by_master_run(struct spu_context *ctx)
+{
+	ctx->ops->master_start(ctx);
+}
+
+static void disable_spu_by_master_run(struct spu_context *ctx)
+{
+	ctx->ops->master_stop(ctx);
+}
+
+/* Hardcoded affinity idxs for qs20 */
+#define QS20_SPES_PER_BE 8
+static int qs20_reg_idxs[QS20_SPES_PER_BE] =   { 0, 2, 4, 6, 7, 5, 3, 1 };
+static int qs20_reg_memory[QS20_SPES_PER_BE] = { 1, 1, 0, 0, 0, 0, 0, 0 };
+
+static struct spu *__init spu_lookup_reg(int node, u32 reg)
+{
+	struct spu *spu;
+	const u32 *spu_reg;
+
+	list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
+		spu_reg = of_get_property(spu_devnode(spu), "reg", NULL);
+		if (*spu_reg == reg)
+			return spu;
+	}
+	return NULL;
+}
+
+static void __init init_affinity_qs20_harcoded(void)
+{
+	int node, i;
+	struct spu *last_spu, *spu;
+	u32 reg;
+
+	for (node = 0; node < MAX_NUMNODES; node++) {
+		last_spu = NULL;
+		for (i = 0; i < QS20_SPES_PER_BE; i++) {
+			reg = qs20_reg_idxs[i];
+			spu = spu_lookup_reg(node, reg);
+			if (!spu)
+				continue;
+			spu->has_mem_affinity = qs20_reg_memory[reg];
+			if (last_spu)
+				list_add_tail(&spu->aff_list,
+						&last_spu->aff_list);
+			last_spu = spu;
+		}
+	}
+}
+
+static int __init of_has_vicinity(void)
+{
+	struct device_node *dn;
+
+	for_each_node_by_type(dn, "spe") {
+		if (of_find_property(dn, "vicinity", NULL))  {
+			of_node_put(dn);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static struct spu *__init devnode_spu(int cbe, struct device_node *dn)
+{
+	struct spu *spu;
+
+	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list)
+		if (spu_devnode(spu) == dn)
+			return spu;
+	return NULL;
+}
+
+static struct spu * __init
+neighbour_spu(int cbe, struct device_node *target, struct device_node *avoid)
+{
+	struct spu *spu;
+	struct device_node *spu_dn;
+	const phandle *vic_handles;
+	int lenp, i;
+
+	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list) {
+		spu_dn = spu_devnode(spu);
+		if (spu_dn == avoid)
+			continue;
+		vic_handles = of_get_property(spu_dn, "vicinity", &lenp);
+		for (i=0; i < (lenp / sizeof(phandle)); i++) {
+			if (vic_handles[i] == target->phandle)
+				return spu;
+		}
+	}
+	return NULL;
+}
+
+static void __init init_affinity_node(int cbe)
+{
+	struct spu *spu, *last_spu;
+	struct device_node *vic_dn, *last_spu_dn;
+	phandle avoid_ph;
+	const phandle *vic_handles;
+	int lenp, i, added;
+
+	last_spu = list_first_entry(&cbe_spu_info[cbe].spus, struct spu,
+								cbe_list);
+	avoid_ph = 0;
+	for (added = 1; added < cbe_spu_info[cbe].n_spus; added++) {
+		last_spu_dn = spu_devnode(last_spu);
+		vic_handles = of_get_property(last_spu_dn, "vicinity", &lenp);
+
+		/*
+		 * Walk through each phandle in vicinity property of the spu
+		 * (typically two vicinity phandles per spe node)
+		 */
+		for (i = 0; i < (lenp / sizeof(phandle)); i++) {
+			if (vic_handles[i] == avoid_ph)
+				continue;
+
+			vic_dn = of_find_node_by_phandle(vic_handles[i]);
+			if (!vic_dn)
+				continue;
+
+			if (of_node_name_eq(vic_dn, "spe") ) {
+				spu = devnode_spu(cbe, vic_dn);
+				avoid_ph = last_spu_dn->phandle;
+			} else {
+				/*
+				 * "mic-tm" and "bif0" nodes do not have
+				 * vicinity property. So we need to find the
+				 * spe which has vic_dn as neighbour, but
+				 * skipping the one we came from (last_spu_dn)
+				 */
+				spu = neighbour_spu(cbe, vic_dn, last_spu_dn);
+				if (!spu)
+					continue;
+				if (of_node_name_eq(vic_dn, "mic-tm")) {
+					last_spu->has_mem_affinity = 1;
+					spu->has_mem_affinity = 1;
+				}
+				avoid_ph = vic_dn->phandle;
+			}
+
+			of_node_put(vic_dn);
+
+			list_add_tail(&spu->aff_list, &last_spu->aff_list);
+			last_spu = spu;
+			break;
+		}
+	}
+}
+
+static void __init init_affinity_fw(void)
+{
+	int cbe;
+
+	for (cbe = 0; cbe < MAX_NUMNODES; cbe++)
+		init_affinity_node(cbe);
+}
+
+static int __init init_affinity(void)
+{
+	if (of_has_vicinity()) {
+		init_affinity_fw();
+	} else {
+		if (of_machine_is_compatible("IBM,CPBW-1.0"))
+			init_affinity_qs20_harcoded();
+		else
+			printk("No affinity configuration found\n");
+	}
+
+	return 0;
+}
+
+const struct spu_management_ops spu_management_of_ops = {
+	.enumerate_spus = of_enumerate_spus,
+	.create_spu = of_create_spu,
+	.destroy_spu = of_destroy_spu,
+	.enable_spu = enable_spu_by_master_run,
+	.disable_spu = disable_spu_by_master_run,
+	.init_affinity = init_affinity,
+};