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, 390 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
new file mode 100644
index 000000000..03ee8152e
--- /dev/null
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -0,0 +1,390 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Cell Internal Interrupt Controller
+ *
+ * Copyright (C) 2006 Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *                    IBM, Corp.
+ *
+ * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
+ *
+ * Author: Arnd Bergmann <arndb@de.ibm.com>
+ *
+ * TODO:
+ * - Fix various assumptions related to HW CPU numbers vs. linux CPU numbers
+ *   vs node numbers in the setup code
+ * - Implement proper handling of maxcpus=1/2 (that is, routing of irqs from
+ *   a non-active node to the active node)
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/export.h>
+#include <linux/percpu.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/kernel_stat.h>
+#include <linux/pgtable.h>
+#include <linux/of_address.h>
+
+#include <asm/io.h>
+#include <asm/ptrace.h>
+#include <asm/machdep.h>
+#include <asm/cell-regs.h>
+
+#include "interrupt.h"
+
+struct iic {
+	struct cbe_iic_thread_regs __iomem *regs;
+	u8 target_id;
+	u8 eoi_stack[16];
+	int eoi_ptr;
+	struct device_node *node;
+};
+
+static DEFINE_PER_CPU(struct iic, cpu_iic);
+#define IIC_NODE_COUNT	2
+static struct irq_domain *iic_host;
+
+/* Convert between "pending" bits and hw irq number */
+static irq_hw_number_t iic_pending_to_hwnum(struct cbe_iic_pending_bits bits)
+{
+	unsigned char unit = bits.source & 0xf;
+	unsigned char node = bits.source >> 4;
+	unsigned char class = bits.class & 3;
+
+	/* Decode IPIs */
+	if (bits.flags & CBE_IIC_IRQ_IPI)
+		return IIC_IRQ_TYPE_IPI | (bits.prio >> 4);
+	else
+		return (node << IIC_IRQ_NODE_SHIFT) | (class << 4) | unit;
+}
+
+static void iic_mask(struct irq_data *d)
+{
+}
+
+static void iic_unmask(struct irq_data *d)
+{
+}
+
+static void iic_eoi(struct irq_data *d)
+{
+	struct iic *iic = this_cpu_ptr(&cpu_iic);
+	out_be64(&iic->regs->prio, iic->eoi_stack[--iic->eoi_ptr]);
+	BUG_ON(iic->eoi_ptr < 0);
+}
+
+static struct irq_chip iic_chip = {
+	.name = "CELL-IIC",
+	.irq_mask = iic_mask,
+	.irq_unmask = iic_unmask,
+	.irq_eoi = iic_eoi,
+};
+
+
+static void iic_ioexc_eoi(struct irq_data *d)
+{
+}
+
+static void iic_ioexc_cascade(struct irq_desc *desc)
+{
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct cbe_iic_regs __iomem *node_iic =
+		(void __iomem *)irq_desc_get_handler_data(desc);
+	unsigned int irq = irq_desc_get_irq(desc);
+	unsigned int base = (irq & 0xffffff00) | IIC_IRQ_TYPE_IOEXC;
+	unsigned long bits, ack;
+	int cascade;
+
+	for (;;) {
+		bits = in_be64(&node_iic->iic_is);
+		if (bits == 0)
+			break;
+		/* pre-ack edge interrupts */
+		ack = bits & IIC_ISR_EDGE_MASK;
+		if (ack)
+			out_be64(&node_iic->iic_is, ack);
+		/* handle them */
+		for (cascade = 63; cascade >= 0; cascade--)
+			if (bits & (0x8000000000000000UL >> cascade))
+				generic_handle_domain_irq(iic_host,
+							  base | cascade);
+		/* post-ack level interrupts */
+		ack = bits & ~IIC_ISR_EDGE_MASK;
+		if (ack)
+			out_be64(&node_iic->iic_is, ack);
+	}
+	chip->irq_eoi(&desc->irq_data);
+}
+
+
+static struct irq_chip iic_ioexc_chip = {
+	.name = "CELL-IOEX",
+	.irq_mask = iic_mask,
+	.irq_unmask = iic_unmask,
+	.irq_eoi = iic_ioexc_eoi,
+};
+
+/* Get an IRQ number from the pending state register of the IIC */
+static unsigned int iic_get_irq(void)
+{
+	struct cbe_iic_pending_bits pending;
+	struct iic *iic;
+	unsigned int virq;
+
+	iic = this_cpu_ptr(&cpu_iic);
+	*(unsigned long *) &pending =
+		in_be64((u64 __iomem *) &iic->regs->pending_destr);
+	if (!(pending.flags & CBE_IIC_IRQ_VALID))
+		return 0;
+	virq = irq_linear_revmap(iic_host, iic_pending_to_hwnum(pending));
+	if (!virq)
+		return 0;
+	iic->eoi_stack[++iic->eoi_ptr] = pending.prio;
+	BUG_ON(iic->eoi_ptr > 15);
+	return virq;
+}
+
+void iic_setup_cpu(void)
+{
+	out_be64(&this_cpu_ptr(&cpu_iic)->regs->prio, 0xff);
+}
+
+u8 iic_get_target_id(int cpu)
+{
+	return per_cpu(cpu_iic, cpu).target_id;
+}
+
+EXPORT_SYMBOL_GPL(iic_get_target_id);
+
+#ifdef CONFIG_SMP
+
+/* Use the highest interrupt priorities for IPI */
+static inline int iic_msg_to_irq(int msg)
+{
+	return IIC_IRQ_TYPE_IPI + 0xf - msg;
+}
+
+void iic_message_pass(int cpu, int msg)
+{
+	out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - msg) << 4);
+}
+
+static void iic_request_ipi(int msg)
+{
+	int virq;
+
+	virq = irq_create_mapping(iic_host, iic_msg_to_irq(msg));
+	if (!virq) {
+		printk(KERN_ERR
+		       "iic: failed to map IPI %s\n", smp_ipi_name[msg]);
+		return;
+	}
+
+	/*
+	 * If smp_request_message_ipi encounters an error it will notify
+	 * the error.  If a message is not needed it will return non-zero.
+	 */
+	if (smp_request_message_ipi(virq, msg))
+		irq_dispose_mapping(virq);
+}
+
+void iic_request_IPIs(void)
+{
+	iic_request_ipi(PPC_MSG_CALL_FUNCTION);
+	iic_request_ipi(PPC_MSG_RESCHEDULE);
+	iic_request_ipi(PPC_MSG_TICK_BROADCAST);
+	iic_request_ipi(PPC_MSG_NMI_IPI);
+}
+
+#endif /* CONFIG_SMP */
+
+
+static int iic_host_match(struct irq_domain *h, struct device_node *node,
+			  enum irq_domain_bus_token bus_token)
+{
+	return of_device_is_compatible(node,
+				    "IBM,CBEA-Internal-Interrupt-Controller");
+}
+
+static int iic_host_map(struct irq_domain *h, unsigned int virq,
+			irq_hw_number_t hw)
+{
+	switch (hw & IIC_IRQ_TYPE_MASK) {
+	case IIC_IRQ_TYPE_IPI:
+		irq_set_chip_and_handler(virq, &iic_chip, handle_percpu_irq);
+		break;
+	case IIC_IRQ_TYPE_IOEXC:
+		irq_set_chip_and_handler(virq, &iic_ioexc_chip,
+					 handle_edge_eoi_irq);
+		break;
+	default:
+		irq_set_chip_and_handler(virq, &iic_chip, handle_edge_eoi_irq);
+	}
+	return 0;
+}
+
+static int iic_host_xlate(struct irq_domain *h, struct device_node *ct,
+			   const u32 *intspec, unsigned int intsize,
+			   irq_hw_number_t *out_hwirq, unsigned int *out_flags)
+
+{
+	unsigned int node, ext, unit, class;
+	const u32 *val;
+
+	if (!of_device_is_compatible(ct,
+				     "IBM,CBEA-Internal-Interrupt-Controller"))
+		return -ENODEV;
+	if (intsize != 1)
+		return -ENODEV;
+	val = of_get_property(ct, "#interrupt-cells", NULL);
+	if (val == NULL || *val != 1)
+		return -ENODEV;
+
+	node = intspec[0] >> 24;
+	ext = (intspec[0] >> 16) & 0xff;
+	class = (intspec[0] >> 8) & 0xff;
+	unit = intspec[0] & 0xff;
+
+	/* Check if node is in supported range */
+	if (node > 1)
+		return -EINVAL;
+
+	/* Build up interrupt number, special case for IO exceptions */
+	*out_hwirq = (node << IIC_IRQ_NODE_SHIFT);
+	if (unit == IIC_UNIT_IIC && class == 1)
+		*out_hwirq |= IIC_IRQ_TYPE_IOEXC | ext;
+	else
+		*out_hwirq |= IIC_IRQ_TYPE_NORMAL |
+			(class << IIC_IRQ_CLASS_SHIFT) | unit;
+
+	/* Dummy flags, ignored by iic code */
+	*out_flags = IRQ_TYPE_EDGE_RISING;
+
+	return 0;
+}
+
+static const struct irq_domain_ops iic_host_ops = {
+	.match = iic_host_match,
+	.map = iic_host_map,
+	.xlate = iic_host_xlate,
+};
+
+static void __init init_one_iic(unsigned int hw_cpu, unsigned long addr,
+				struct device_node *node)
+{
+	/* XXX FIXME: should locate the linux CPU number from the HW cpu
+	 * number properly. We are lucky for now
+	 */
+	struct iic *iic = &per_cpu(cpu_iic, hw_cpu);
+
+	iic->regs = ioremap(addr, sizeof(struct cbe_iic_thread_regs));
+	BUG_ON(iic->regs == NULL);
+
+	iic->target_id = ((hw_cpu & 2) << 3) | ((hw_cpu & 1) ? 0xf : 0xe);
+	iic->eoi_stack[0] = 0xff;
+	iic->node = of_node_get(node);
+	out_be64(&iic->regs->prio, 0);
+
+	printk(KERN_INFO "IIC for CPU %d target id 0x%x : %pOF\n",
+	       hw_cpu, iic->target_id, node);
+}
+
+static int __init setup_iic(void)
+{
+	struct device_node *dn;
+	struct resource r0, r1;
+	unsigned int node, cascade, found = 0;
+	struct cbe_iic_regs __iomem *node_iic;
+	const u32 *np;
+
+	for_each_node_by_name(dn, "interrupt-controller") {
+		if (!of_device_is_compatible(dn,
+				     "IBM,CBEA-Internal-Interrupt-Controller"))
+			continue;
+		np = of_get_property(dn, "ibm,interrupt-server-ranges", NULL);
+		if (np == NULL) {
+			printk(KERN_WARNING "IIC: CPU association not found\n");
+			of_node_put(dn);
+			return -ENODEV;
+		}
+		if (of_address_to_resource(dn, 0, &r0) ||
+		    of_address_to_resource(dn, 1, &r1)) {
+			printk(KERN_WARNING "IIC: Can't resolve addresses\n");
+			of_node_put(dn);
+			return -ENODEV;
+		}
+		found++;
+		init_one_iic(np[0], r0.start, dn);
+		init_one_iic(np[1], r1.start, dn);
+
+		/* Setup cascade for IO exceptions. XXX cleanup tricks to get
+		 * node vs CPU etc...
+		 * Note that we configure the IIC_IRR here with a hard coded
+		 * priority of 1. We might want to improve that later.
+		 */
+		node = np[0] >> 1;
+		node_iic = cbe_get_cpu_iic_regs(np[0]);
+		cascade = node << IIC_IRQ_NODE_SHIFT;
+		cascade |= 1 << IIC_IRQ_CLASS_SHIFT;
+		cascade |= IIC_UNIT_IIC;
+		cascade = irq_create_mapping(iic_host, cascade);
+		if (!cascade)
+			continue;
+		/*
+		 * irq_data is a generic pointer that gets passed back
+		 * to us later, so the forced cast is fine.
+		 */
+		irq_set_handler_data(cascade, (void __force *)node_iic);
+		irq_set_chained_handler(cascade, iic_ioexc_cascade);
+		out_be64(&node_iic->iic_ir,
+			 (1 << 12)		/* priority */ |
+			 (node << 4)		/* dest node */ |
+			 IIC_UNIT_THREAD_0	/* route them to thread 0 */);
+		/* Flush pending (make sure it triggers if there is
+		 * anything pending
+		 */
+		out_be64(&node_iic->iic_is, 0xfffffffffffffffful);
+	}
+
+	if (found)
+		return 0;
+	else
+		return -ENODEV;
+}
+
+void __init iic_init_IRQ(void)
+{
+	/* Setup an irq host data structure */
+	iic_host = irq_domain_add_linear(NULL, IIC_SOURCE_COUNT, &iic_host_ops,
+					 NULL);
+	BUG_ON(iic_host == NULL);
+	irq_set_default_host(iic_host);
+
+	/* Discover and initialize iics */
+	if (setup_iic() < 0)
+		panic("IIC: Failed to initialize !\n");
+
+	/* Set master interrupt handling function */
+	ppc_md.get_irq = iic_get_irq;
+
+	/* Enable on current CPU */
+	iic_setup_cpu();
+}
+
+void iic_set_interrupt_routing(int cpu, int thread, int priority)
+{
+	struct cbe_iic_regs __iomem *iic_regs = cbe_get_cpu_iic_regs(cpu);
+	u64 iic_ir = 0;
+	int node = cpu >> 1;
+
+	/* Set which node and thread will handle the next interrupt */
+	iic_ir |= CBE_IIC_IR_PRIO(priority) |
+		  CBE_IIC_IR_DEST_NODE(node);
+	if (thread == 0)
+		iic_ir |= CBE_IIC_IR_DEST_UNIT(CBE_IIC_IR_PT_0);
+	else
+		iic_ir |= CBE_IIC_IR_DEST_UNIT(CBE_IIC_IR_PT_1);
+	out_be64(&iic_regs->iic_ir, iic_ir);
+}