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-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
new file mode 100644
index 000000000..d5c1c750c
--- /dev/null
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -0,0 +1,218 @@
+/*
+ * Synopsys DW APB ICTL irqchip driver.
+ *
+ * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+ *
+ * based on GPL'ed 2.6 kernel sources
+ *  (c) Marvell International Ltd.
+ *
+ * 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/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/interrupt.h>
+
+#define APB_INT_ENABLE_L	0x00
+#define APB_INT_ENABLE_H	0x04
+#define APB_INT_MASK_L		0x08
+#define APB_INT_MASK_H		0x0c
+#define APB_INT_FINALSTATUS_L	0x30
+#define APB_INT_FINALSTATUS_H	0x34
+#define APB_INT_BASE_OFFSET	0x04
+
+/* irq domain of the primary interrupt controller. */
+static struct irq_domain *dw_apb_ictl_irq_domain;
+
+static void __irq_entry dw_apb_ictl_handle_irq(struct pt_regs *regs)
+{
+	struct irq_domain *d = dw_apb_ictl_irq_domain;
+	int n;
+
+	for (n = 0; n < d->revmap_size; n += 32) {
+		struct irq_chip_generic *gc = irq_get_domain_generic_chip(d, n);
+		u32 stat = readl_relaxed(gc->reg_base + APB_INT_FINALSTATUS_L);
+
+		while (stat) {
+			u32 hwirq = ffs(stat) - 1;
+
+			generic_handle_domain_irq(d, hwirq);
+			stat &= ~BIT(hwirq);
+		}
+	}
+}
+
+static void dw_apb_ictl_handle_irq_cascaded(struct irq_desc *desc)
+{
+	struct irq_domain *d = irq_desc_get_handler_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	int n;
+
+	chained_irq_enter(chip, desc);
+
+	for (n = 0; n < d->revmap_size; n += 32) {
+		struct irq_chip_generic *gc = irq_get_domain_generic_chip(d, n);
+		u32 stat = readl_relaxed(gc->reg_base + APB_INT_FINALSTATUS_L);
+
+		while (stat) {
+			u32 hwirq = ffs(stat) - 1;
+			generic_handle_domain_irq(d, gc->irq_base + hwirq);
+
+			stat &= ~BIT(hwirq);
+		}
+	}
+
+	chained_irq_exit(chip, desc);
+}
+
+static int dw_apb_ictl_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
+				unsigned int nr_irqs, void *arg)
+{
+	int i, ret;
+	irq_hw_number_t hwirq;
+	unsigned int type = IRQ_TYPE_NONE;
+	struct irq_fwspec *fwspec = arg;
+
+	ret = irq_domain_translate_onecell(domain, fwspec, &hwirq, &type);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < nr_irqs; i++)
+		irq_map_generic_chip(domain, virq + i, hwirq + i);
+
+	return 0;
+}
+
+static const struct irq_domain_ops dw_apb_ictl_irq_domain_ops = {
+	.translate = irq_domain_translate_onecell,
+	.alloc = dw_apb_ictl_irq_domain_alloc,
+	.free = irq_domain_free_irqs_top,
+};
+
+#ifdef CONFIG_PM
+static void dw_apb_ictl_resume(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = irq_data_get_chip_type(d);
+
+	irq_gc_lock(gc);
+	writel_relaxed(~0, gc->reg_base + ct->regs.enable);
+	writel_relaxed(*ct->mask_cache, gc->reg_base + ct->regs.mask);
+	irq_gc_unlock(gc);
+}
+#else
+#define dw_apb_ictl_resume	NULL
+#endif /* CONFIG_PM */
+
+static int __init dw_apb_ictl_init(struct device_node *np,
+				   struct device_node *parent)
+{
+	const struct irq_domain_ops *domain_ops;
+	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+	struct resource r;
+	struct irq_domain *domain;
+	struct irq_chip_generic *gc;
+	void __iomem *iobase;
+	int ret, nrirqs, parent_irq, i;
+	u32 reg;
+
+	if (!parent) {
+		/* Used as the primary interrupt controller */
+		parent_irq = 0;
+		domain_ops = &dw_apb_ictl_irq_domain_ops;
+	} else {
+		/* Map the parent interrupt for the chained handler */
+		parent_irq = irq_of_parse_and_map(np, 0);
+		if (parent_irq <= 0) {
+			pr_err("%pOF: unable to parse irq\n", np);
+			return -EINVAL;
+		}
+		domain_ops = &irq_generic_chip_ops;
+	}
+
+	ret = of_address_to_resource(np, 0, &r);
+	if (ret) {
+		pr_err("%pOF: unable to get resource\n", np);
+		return ret;
+	}
+
+	if (!request_mem_region(r.start, resource_size(&r), np->full_name)) {
+		pr_err("%pOF: unable to request mem region\n", np);
+		return -ENOMEM;
+	}
+
+	iobase = ioremap(r.start, resource_size(&r));
+	if (!iobase) {
+		pr_err("%pOF: unable to map resource\n", np);
+		ret = -ENOMEM;
+		goto err_release;
+	}
+
+	/*
+	 * DW IP can be configured to allow 2-64 irqs. We can determine
+	 * the number of irqs supported by writing into enable register
+	 * and look for bits not set, as corresponding flip-flops will
+	 * have been removed by synthesis tool.
+	 */
+
+	/* mask and enable all interrupts */
+	writel_relaxed(~0, iobase + APB_INT_MASK_L);
+	writel_relaxed(~0, iobase + APB_INT_MASK_H);
+	writel_relaxed(~0, iobase + APB_INT_ENABLE_L);
+	writel_relaxed(~0, iobase + APB_INT_ENABLE_H);
+
+	reg = readl_relaxed(iobase + APB_INT_ENABLE_H);
+	if (reg)
+		nrirqs = 32 + fls(reg);
+	else
+		nrirqs = fls(readl_relaxed(iobase + APB_INT_ENABLE_L));
+
+	domain = irq_domain_add_linear(np, nrirqs, domain_ops, NULL);
+	if (!domain) {
+		pr_err("%pOF: unable to add irq domain\n", np);
+		ret = -ENOMEM;
+		goto err_unmap;
+	}
+
+	ret = irq_alloc_domain_generic_chips(domain, 32, 1, np->name,
+					     handle_level_irq, clr, 0,
+					     IRQ_GC_INIT_MASK_CACHE);
+	if (ret) {
+		pr_err("%pOF: unable to alloc irq domain gc\n", np);
+		goto err_unmap;
+	}
+
+	for (i = 0; i < DIV_ROUND_UP(nrirqs, 32); i++) {
+		gc = irq_get_domain_generic_chip(domain, i * 32);
+		gc->reg_base = iobase + i * APB_INT_BASE_OFFSET;
+		gc->chip_types[0].regs.mask = APB_INT_MASK_L;
+		gc->chip_types[0].regs.enable = APB_INT_ENABLE_L;
+		gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
+		gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
+		gc->chip_types[0].chip.irq_resume = dw_apb_ictl_resume;
+	}
+
+	if (parent_irq) {
+		irq_set_chained_handler_and_data(parent_irq,
+				dw_apb_ictl_handle_irq_cascaded, domain);
+	} else {
+		dw_apb_ictl_irq_domain = domain;
+		set_handle_irq(dw_apb_ictl_handle_irq);
+	}
+
+	return 0;
+
+err_unmap:
+	iounmap(iobase);
+err_release:
+	release_mem_region(r.start, resource_size(&r));
+	return ret;
+}
+IRQCHIP_DECLARE(dw_apb_ictl,
+		"snps,dw-apb-ictl", dw_apb_ictl_init);