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, 218 insertions, 0 deletions

diff --git a/drivers/irqchip/irq-mscc-ocelot.c b/drivers/irqchip/irq-mscc-ocelot.c
new file mode 100644
index 000000000..4d0c3532d
--- /dev/null
+++ b/drivers/irqchip/irq-mscc-ocelot.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Microsemi Ocelot IRQ controller driver
+ *
+ * Copyright (c) 2017 Microsemi Corporation
+ */
+#include <linux/bitops.h>
+#include <linux/irq.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/interrupt.h>
+
+#define ICPU_CFG_INTR_DST_INTR_IDENT(_p, x) ((_p)->reg_off_ident + 0x4 * (x))
+#define ICPU_CFG_INTR_INTR_TRIGGER(_p, x)   ((_p)->reg_off_trigger + 0x4 * (x))
+
+#define FLAGS_HAS_TRIGGER	BIT(0)
+#define FLAGS_NEED_INIT_ENABLE	BIT(1)
+
+struct chip_props {
+	u8 flags;
+	u8 reg_off_sticky;
+	u8 reg_off_ena;
+	u8 reg_off_ena_clr;
+	u8 reg_off_ena_set;
+	u8 reg_off_ident;
+	u8 reg_off_trigger;
+	u8 reg_off_ena_irq0;
+	u8 n_irq;
+};
+
+static struct chip_props ocelot_props = {
+	.flags			= FLAGS_HAS_TRIGGER,
+	.reg_off_sticky		= 0x10,
+	.reg_off_ena		= 0x18,
+	.reg_off_ena_clr	= 0x1c,
+	.reg_off_ena_set	= 0x20,
+	.reg_off_ident		= 0x38,
+	.reg_off_trigger	= 0x5c,
+	.n_irq			= 24,
+};
+
+static struct chip_props serval_props = {
+	.flags			= FLAGS_HAS_TRIGGER,
+	.reg_off_sticky		= 0xc,
+	.reg_off_ena		= 0x14,
+	.reg_off_ena_clr	= 0x18,
+	.reg_off_ena_set	= 0x1c,
+	.reg_off_ident		= 0x20,
+	.reg_off_trigger	= 0x4,
+	.n_irq			= 24,
+};
+
+static struct chip_props luton_props = {
+	.flags			= FLAGS_NEED_INIT_ENABLE,
+	.reg_off_sticky		= 0,
+	.reg_off_ena		= 0x4,
+	.reg_off_ena_clr	= 0x8,
+	.reg_off_ena_set	= 0xc,
+	.reg_off_ident		= 0x18,
+	.reg_off_ena_irq0	= 0x14,
+	.n_irq			= 28,
+};
+
+static struct chip_props jaguar2_props = {
+	.flags			= FLAGS_HAS_TRIGGER,
+	.reg_off_sticky		= 0x10,
+	.reg_off_ena		= 0x18,
+	.reg_off_ena_clr	= 0x1c,
+	.reg_off_ena_set	= 0x20,
+	.reg_off_ident		= 0x38,
+	.reg_off_trigger	= 0x5c,
+	.n_irq			= 29,
+};
+
+static void ocelot_irq_unmask(struct irq_data *data)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+	struct irq_domain *d = data->domain;
+	struct chip_props *p = d->host_data;
+	struct irq_chip_type *ct = irq_data_get_chip_type(data);
+	unsigned int mask = data->mask;
+	u32 val;
+
+	irq_gc_lock(gc);
+	val = irq_reg_readl(gc, ICPU_CFG_INTR_INTR_TRIGGER(p, 0)) |
+		irq_reg_readl(gc, ICPU_CFG_INTR_INTR_TRIGGER(p, 1));
+	if (!(val & mask))
+		irq_reg_writel(gc, mask, p->reg_off_sticky);
+
+	*ct->mask_cache &= ~mask;
+	irq_reg_writel(gc, mask, p->reg_off_ena_set);
+	irq_gc_unlock(gc);
+}
+
+static void ocelot_irq_handler(struct irq_desc *desc)
+{
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct irq_domain *d = irq_desc_get_handler_data(desc);
+	struct chip_props *p = d->host_data;
+	struct irq_chip_generic *gc = irq_get_domain_generic_chip(d, 0);
+	u32 reg = irq_reg_readl(gc, ICPU_CFG_INTR_DST_INTR_IDENT(p, 0));
+
+	chained_irq_enter(chip, desc);
+
+	while (reg) {
+		u32 hwirq = __fls(reg);
+
+		generic_handle_domain_irq(d, hwirq);
+		reg &= ~(BIT(hwirq));
+	}
+
+	chained_irq_exit(chip, desc);
+}
+
+static int __init vcoreiii_irq_init(struct device_node *node,
+				    struct device_node *parent,
+				    struct chip_props *p)
+{
+	struct irq_domain *domain;
+	struct irq_chip_generic *gc;
+	int parent_irq, ret;
+
+	parent_irq = irq_of_parse_and_map(node, 0);
+	if (!parent_irq)
+		return -EINVAL;
+
+	domain = irq_domain_add_linear(node, p->n_irq,
+				       &irq_generic_chip_ops, NULL);
+	if (!domain) {
+		pr_err("%pOFn: unable to add irq domain\n", node);
+		return -ENOMEM;
+	}
+
+	ret = irq_alloc_domain_generic_chips(domain, p->n_irq, 1,
+					     "icpu", handle_level_irq,
+					     0, 0, 0);
+	if (ret) {
+		pr_err("%pOFn: unable to alloc irq domain gc\n", node);
+		goto err_domain_remove;
+	}
+
+	gc = irq_get_domain_generic_chip(domain, 0);
+	gc->reg_base = of_iomap(node, 0);
+	if (!gc->reg_base) {
+		pr_err("%pOFn: unable to map resource\n", node);
+		ret = -ENOMEM;
+		goto err_gc_free;
+	}
+
+	gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
+	gc->chip_types[0].regs.ack = p->reg_off_sticky;
+	if (p->flags & FLAGS_HAS_TRIGGER) {
+		gc->chip_types[0].regs.mask = p->reg_off_ena_clr;
+		gc->chip_types[0].chip.irq_unmask = ocelot_irq_unmask;
+		gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
+	} else {
+		gc->chip_types[0].regs.enable = p->reg_off_ena_set;
+		gc->chip_types[0].regs.disable = p->reg_off_ena_clr;
+		gc->chip_types[0].chip.irq_mask = irq_gc_mask_disable_reg;
+		gc->chip_types[0].chip.irq_unmask = irq_gc_unmask_enable_reg;
+	}
+
+	/* Mask and ack all interrupts */
+	irq_reg_writel(gc, 0, p->reg_off_ena);
+	irq_reg_writel(gc, 0xffffffff, p->reg_off_sticky);
+
+	/* Overall init */
+	if (p->flags & FLAGS_NEED_INIT_ENABLE)
+		irq_reg_writel(gc, BIT(0), p->reg_off_ena_irq0);
+
+	domain->host_data = p;
+	irq_set_chained_handler_and_data(parent_irq, ocelot_irq_handler,
+					 domain);
+
+	return 0;
+
+err_gc_free:
+	irq_free_generic_chip(gc);
+
+err_domain_remove:
+	irq_domain_remove(domain);
+
+	return ret;
+}
+
+static int __init ocelot_irq_init(struct device_node *node,
+				  struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &ocelot_props);
+}
+
+IRQCHIP_DECLARE(ocelot_icpu, "mscc,ocelot-icpu-intr", ocelot_irq_init);
+
+static int __init serval_irq_init(struct device_node *node,
+				  struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &serval_props);
+}
+
+IRQCHIP_DECLARE(serval_icpu, "mscc,serval-icpu-intr", serval_irq_init);
+
+static int __init luton_irq_init(struct device_node *node,
+				 struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &luton_props);
+}
+
+IRQCHIP_DECLARE(luton_icpu, "mscc,luton-icpu-intr", luton_irq_init);
+
+static int __init jaguar2_irq_init(struct device_node *node,
+				   struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &jaguar2_props);
+}
+
+IRQCHIP_DECLARE(jaguar2_icpu, "mscc,jaguar2-icpu-intr", jaguar2_irq_init);