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, 299 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c
new file mode 100644
index 000000000..00705258e
--- /dev/null
+++ b/arch/powerpc/sysdev/ehv_pic.c
@@ -0,0 +1,299 @@
+/*
+ *  Driver for ePAPR Embedded Hypervisor PIC
+ *
+ *  Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ *  Author: Ashish Kalra <ashish.kalra@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/ehv_pic.h>
+#include <asm/fsl_hcalls.h>
+
+static struct ehv_pic *global_ehv_pic;
+static DEFINE_SPINLOCK(ehv_pic_lock);
+
+static u32 hwirq_intspec[NR_EHV_PIC_INTS];
+static u32 __iomem *mpic_percpu_base_vaddr;
+
+#define IRQ_TYPE_MPIC_DIRECT 4
+#define MPIC_EOI  0x00B0
+
+/*
+ * Linux descriptor level callbacks
+ */
+
+void ehv_pic_unmask_irq(struct irq_data *d)
+{
+	unsigned int src = virq_to_hw(d->irq);
+
+	ev_int_set_mask(src, 0);
+}
+
+void ehv_pic_mask_irq(struct irq_data *d)
+{
+	unsigned int src = virq_to_hw(d->irq);
+
+	ev_int_set_mask(src, 1);
+}
+
+void ehv_pic_end_irq(struct irq_data *d)
+{
+	unsigned int src = virq_to_hw(d->irq);
+
+	ev_int_eoi(src);
+}
+
+void ehv_pic_direct_end_irq(struct irq_data *d)
+{
+	out_be32(mpic_percpu_base_vaddr + MPIC_EOI / 4, 0);
+}
+
+int ehv_pic_set_affinity(struct irq_data *d, const struct cpumask *dest,
+			 bool force)
+{
+	unsigned int src = virq_to_hw(d->irq);
+	unsigned int config, prio, cpu_dest;
+	int cpuid = irq_choose_cpu(dest);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ehv_pic_lock, flags);
+	ev_int_get_config(src, &config, &prio, &cpu_dest);
+	ev_int_set_config(src, config, prio, cpuid);
+	spin_unlock_irqrestore(&ehv_pic_lock, flags);
+
+	return IRQ_SET_MASK_OK;
+}
+
+static unsigned int ehv_pic_type_to_vecpri(unsigned int type)
+{
+	/* Now convert sense value */
+
+	switch (type & IRQ_TYPE_SENSE_MASK) {
+	case IRQ_TYPE_EDGE_RISING:
+		return EHV_PIC_INFO(VECPRI_SENSE_EDGE) |
+		       EHV_PIC_INFO(VECPRI_POLARITY_POSITIVE);
+
+	case IRQ_TYPE_EDGE_FALLING:
+	case IRQ_TYPE_EDGE_BOTH:
+		return EHV_PIC_INFO(VECPRI_SENSE_EDGE) |
+		       EHV_PIC_INFO(VECPRI_POLARITY_NEGATIVE);
+
+	case IRQ_TYPE_LEVEL_HIGH:
+		return EHV_PIC_INFO(VECPRI_SENSE_LEVEL) |
+		       EHV_PIC_INFO(VECPRI_POLARITY_POSITIVE);
+
+	case IRQ_TYPE_LEVEL_LOW:
+	default:
+		return EHV_PIC_INFO(VECPRI_SENSE_LEVEL) |
+		       EHV_PIC_INFO(VECPRI_POLARITY_NEGATIVE);
+	}
+}
+
+int ehv_pic_set_irq_type(struct irq_data *d, unsigned int flow_type)
+{
+	unsigned int src = virq_to_hw(d->irq);
+	unsigned int vecpri, vold, vnew, prio, cpu_dest;
+	unsigned long flags;
+
+	if (flow_type == IRQ_TYPE_NONE)
+		flow_type = IRQ_TYPE_LEVEL_LOW;
+
+	irqd_set_trigger_type(d, flow_type);
+
+	vecpri = ehv_pic_type_to_vecpri(flow_type);
+
+	spin_lock_irqsave(&ehv_pic_lock, flags);
+	ev_int_get_config(src, &vold, &prio, &cpu_dest);
+	vnew = vold & ~(EHV_PIC_INFO(VECPRI_POLARITY_MASK) |
+			EHV_PIC_INFO(VECPRI_SENSE_MASK));
+	vnew |= vecpri;
+
+	/*
+	 * TODO : Add specific interface call for platform to set
+	 * individual interrupt priorities.
+	 * platform currently using static/default priority for all ints
+	 */
+
+	prio = 8;
+
+	ev_int_set_config(src, vecpri, prio, cpu_dest);
+
+	spin_unlock_irqrestore(&ehv_pic_lock, flags);
+	return IRQ_SET_MASK_OK_NOCOPY;
+}
+
+static struct irq_chip ehv_pic_irq_chip = {
+	.irq_mask	= ehv_pic_mask_irq,
+	.irq_unmask	= ehv_pic_unmask_irq,
+	.irq_eoi	= ehv_pic_end_irq,
+	.irq_set_type	= ehv_pic_set_irq_type,
+};
+
+static struct irq_chip ehv_pic_direct_eoi_irq_chip = {
+	.irq_mask	= ehv_pic_mask_irq,
+	.irq_unmask	= ehv_pic_unmask_irq,
+	.irq_eoi	= ehv_pic_direct_end_irq,
+	.irq_set_type	= ehv_pic_set_irq_type,
+};
+
+/* Return an interrupt vector or 0 if no interrupt is pending. */
+unsigned int ehv_pic_get_irq(void)
+{
+	int irq;
+
+	BUG_ON(global_ehv_pic == NULL);
+
+	if (global_ehv_pic->coreint_flag)
+		irq = mfspr(SPRN_EPR); /* if core int mode */
+	else
+		ev_int_iack(0, &irq); /* legacy mode */
+
+	if (irq == 0xFFFF)    /* 0xFFFF --> no irq is pending */
+		return 0;
+
+	/*
+	 * this will also setup revmap[] in the slow path for the first
+	 * time, next calls will always use fast path by indexing revmap
+	 */
+	return irq_linear_revmap(global_ehv_pic->irqhost, irq);
+}
+
+static int ehv_pic_host_match(struct irq_domain *h, struct device_node *node,
+			      enum irq_domain_bus_token bus_token)
+{
+	/* Exact match, unless ehv_pic node is NULL */
+	struct device_node *of_node = irq_domain_get_of_node(h);
+	return of_node == NULL || of_node == node;
+}
+
+static int ehv_pic_host_map(struct irq_domain *h, unsigned int virq,
+			 irq_hw_number_t hw)
+{
+	struct ehv_pic *ehv_pic = h->host_data;
+	struct irq_chip *chip;
+
+	/* Default chip */
+	chip = &ehv_pic->hc_irq;
+
+	if (mpic_percpu_base_vaddr)
+		if (hwirq_intspec[hw] & IRQ_TYPE_MPIC_DIRECT)
+			chip = &ehv_pic_direct_eoi_irq_chip;
+
+	irq_set_chip_data(virq, chip);
+	/*
+	 * using handle_fasteoi_irq as our irq handler, this will
+	 * only call the eoi callback and suitable for the MPIC
+	 * controller which set ISR/IPR automatically and clear the
+	 * highest priority active interrupt in ISR/IPR when we do
+	 * a specific eoi
+	 */
+	irq_set_chip_and_handler(virq, chip, handle_fasteoi_irq);
+
+	/* Set default irq type */
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+
+	return 0;
+}
+
+static int ehv_pic_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)
+
+{
+	/*
+	 * interrupt sense values coming from the guest device tree
+	 * interrupt specifiers can have four possible sense and
+	 * level encoding information and they need to
+	 * be translated between firmware type & linux type.
+	 */
+
+	static unsigned char map_of_senses_to_linux_irqtype[4] = {
+		IRQ_TYPE_EDGE_FALLING,
+		IRQ_TYPE_EDGE_RISING,
+		IRQ_TYPE_LEVEL_LOW,
+		IRQ_TYPE_LEVEL_HIGH,
+	};
+
+	*out_hwirq = intspec[0];
+	if (intsize > 1) {
+		hwirq_intspec[intspec[0]] = intspec[1];
+		*out_flags = map_of_senses_to_linux_irqtype[intspec[1] &
+							~IRQ_TYPE_MPIC_DIRECT];
+	} else {
+		*out_flags = IRQ_TYPE_NONE;
+	}
+
+	return 0;
+}
+
+static const struct irq_domain_ops ehv_pic_host_ops = {
+	.match = ehv_pic_host_match,
+	.map = ehv_pic_host_map,
+	.xlate = ehv_pic_host_xlate,
+};
+
+void __init ehv_pic_init(void)
+{
+	struct device_node *np, *np2;
+	struct ehv_pic *ehv_pic;
+	int coreint_flag = 1;
+
+	np = of_find_compatible_node(NULL, NULL, "epapr,hv-pic");
+	if (!np) {
+		pr_err("ehv_pic_init: could not find epapr,hv-pic node\n");
+		return;
+	}
+
+	if (!of_find_property(np, "has-external-proxy", NULL))
+		coreint_flag = 0;
+
+	ehv_pic = kzalloc(sizeof(struct ehv_pic), GFP_KERNEL);
+	if (!ehv_pic) {
+		of_node_put(np);
+		return;
+	}
+
+	ehv_pic->irqhost = irq_domain_add_linear(np, NR_EHV_PIC_INTS,
+						 &ehv_pic_host_ops, ehv_pic);
+	if (!ehv_pic->irqhost) {
+		of_node_put(np);
+		kfree(ehv_pic);
+		return;
+	}
+
+	np2 = of_find_compatible_node(NULL, NULL, "fsl,hv-mpic-per-cpu");
+	if (np2) {
+		mpic_percpu_base_vaddr = of_iomap(np2, 0);
+		if (!mpic_percpu_base_vaddr)
+			pr_err("ehv_pic_init: of_iomap failed\n");
+
+		of_node_put(np2);
+	}
+
+	ehv_pic->hc_irq = ehv_pic_irq_chip;
+	ehv_pic->hc_irq.irq_set_affinity = ehv_pic_set_affinity;
+	ehv_pic->coreint_flag = coreint_flag;
+
+	global_ehv_pic = ehv_pic;
+	irq_set_default_host(global_ehv_pic->irqhost);
+}