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, 236 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/avic.c b/arch/arm/mach-imx/avic.c
new file mode 100644
index 000000000..cf6546ddc
--- /dev/null
+++ b/arch/arm/mach-imx/avic.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ */
+
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <asm/mach/irq.h>
+#include <asm/exception.h>
+
+#include "common.h"
+#include "hardware.h"
+#include "irq-common.h"
+
+#define AVIC_INTCNTL		0x00	/* int control reg */
+#define AVIC_NIMASK		0x04	/* int mask reg */
+#define AVIC_INTENNUM		0x08	/* int enable number reg */
+#define AVIC_INTDISNUM		0x0C	/* int disable number reg */
+#define AVIC_INTENABLEH		0x10	/* int enable reg high */
+#define AVIC_INTENABLEL		0x14	/* int enable reg low */
+#define AVIC_INTTYPEH		0x18	/* int type reg high */
+#define AVIC_INTTYPEL		0x1C	/* int type reg low */
+#define AVIC_NIPRIORITY(x)	(0x20 + 4 * (7 - (x))) /* int priority */
+#define AVIC_NIVECSR		0x40	/* norm int vector/status */
+#define AVIC_FIVECSR		0x44	/* fast int vector/status */
+#define AVIC_INTSRCH		0x48	/* int source reg high */
+#define AVIC_INTSRCL		0x4C	/* int source reg low */
+#define AVIC_INTFRCH		0x50	/* int force reg high */
+#define AVIC_INTFRCL		0x54	/* int force reg low */
+#define AVIC_NIPNDH		0x58	/* norm int pending high */
+#define AVIC_NIPNDL		0x5C	/* norm int pending low */
+#define AVIC_FIPNDH		0x60	/* fast int pending high */
+#define AVIC_FIPNDL		0x64	/* fast int pending low */
+
+#define AVIC_NUM_IRQS 64
+
+/* low power interrupt mask registers */
+#define MX25_CCM_LPIMR0	0x68
+#define MX25_CCM_LPIMR1	0x6C
+
+static void __iomem *avic_base;
+static void __iomem *mx25_ccm_base;
+static struct irq_domain *domain;
+
+#ifdef CONFIG_FIQ
+static int avic_set_irq_fiq(unsigned int hwirq, unsigned int type)
+{
+	unsigned int irqt;
+
+	if (hwirq >= AVIC_NUM_IRQS)
+		return -EINVAL;
+
+	if (hwirq < AVIC_NUM_IRQS / 2) {
+		irqt = imx_readl(avic_base + AVIC_INTTYPEL) & ~(1 << hwirq);
+		imx_writel(irqt | (!!type << hwirq), avic_base + AVIC_INTTYPEL);
+	} else {
+		hwirq -= AVIC_NUM_IRQS / 2;
+		irqt = imx_readl(avic_base + AVIC_INTTYPEH) & ~(1 << hwirq);
+		imx_writel(irqt | (!!type << hwirq), avic_base + AVIC_INTTYPEH);
+	}
+
+	return 0;
+}
+#endif /* CONFIG_FIQ */
+
+
+static struct mxc_extra_irq avic_extra_irq = {
+#ifdef CONFIG_FIQ
+	.set_irq_fiq = avic_set_irq_fiq,
+#endif
+};
+
+#ifdef CONFIG_PM
+static u32 avic_saved_mask_reg[2];
+
+static void avic_irq_suspend(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = gc->chip_types;
+	int idx = d->hwirq >> 5;
+
+	avic_saved_mask_reg[idx] = imx_readl(avic_base + ct->regs.mask);
+	imx_writel(gc->wake_active, avic_base + ct->regs.mask);
+
+	if (mx25_ccm_base) {
+		u8 offs = d->hwirq < AVIC_NUM_IRQS / 2 ?
+			MX25_CCM_LPIMR0 : MX25_CCM_LPIMR1;
+		/*
+		 * The interrupts which are still enabled will be used as wakeup
+		 * sources. Allow those interrupts in low-power mode.
+		 * The LPIMR registers use 0 to allow an interrupt, the AVIC
+		 * registers use 1.
+		 */
+		imx_writel(~gc->wake_active, mx25_ccm_base + offs);
+	}
+}
+
+static void avic_irq_resume(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = gc->chip_types;
+	int idx = d->hwirq >> 5;
+
+	imx_writel(avic_saved_mask_reg[idx], avic_base + ct->regs.mask);
+
+	if (mx25_ccm_base) {
+		u8 offs = d->hwirq < AVIC_NUM_IRQS / 2 ?
+			MX25_CCM_LPIMR0 : MX25_CCM_LPIMR1;
+
+		imx_writel(0xffffffff, mx25_ccm_base + offs);
+	}
+}
+
+#else
+#define avic_irq_suspend NULL
+#define avic_irq_resume NULL
+#endif
+
+static __init void avic_init_gc(int idx, unsigned int irq_start)
+{
+	struct irq_chip_generic *gc;
+	struct irq_chip_type *ct;
+
+	gc = irq_alloc_generic_chip("mxc-avic", 1, irq_start, avic_base,
+				    handle_level_irq);
+	gc->private = &avic_extra_irq;
+	gc->wake_enabled = IRQ_MSK(32);
+
+	ct = gc->chip_types;
+	ct->chip.irq_mask = irq_gc_mask_clr_bit;
+	ct->chip.irq_unmask = irq_gc_mask_set_bit;
+	ct->chip.irq_ack = irq_gc_mask_clr_bit;
+	ct->chip.irq_set_wake = irq_gc_set_wake;
+	ct->chip.irq_suspend = avic_irq_suspend;
+	ct->chip.irq_resume = avic_irq_resume;
+	ct->regs.mask = !idx ? AVIC_INTENABLEL : AVIC_INTENABLEH;
+	ct->regs.ack = ct->regs.mask;
+
+	irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0);
+}
+
+static void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
+{
+	u32 nivector;
+
+	do {
+		nivector = imx_readl(avic_base + AVIC_NIVECSR) >> 16;
+		if (nivector == 0xffff)
+			break;
+
+		generic_handle_domain_irq(domain, nivector);
+	} while (1);
+}
+
+/*
+ * This function initializes the AVIC hardware and disables all the
+ * interrupts. It registers the interrupt enable and disable functions
+ * to the kernel for each interrupt source.
+ */
+static void __init mxc_init_irq(void __iomem *irqbase)
+{
+	struct device_node *np;
+	int irq_base;
+	int i;
+
+	avic_base = irqbase;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx25-ccm");
+	mx25_ccm_base = of_iomap(np, 0);
+
+	if (mx25_ccm_base) {
+		/*
+		 * By default, we mask all interrupts. We set the actual mask
+		 * before we go into low-power mode.
+		 */
+		imx_writel(0xffffffff, mx25_ccm_base + MX25_CCM_LPIMR0);
+		imx_writel(0xffffffff, mx25_ccm_base + MX25_CCM_LPIMR1);
+	}
+
+	/* put the AVIC into the reset value with
+	 * all interrupts disabled
+	 */
+	imx_writel(0, avic_base + AVIC_INTCNTL);
+	imx_writel(0x1f, avic_base + AVIC_NIMASK);
+
+	/* disable all interrupts */
+	imx_writel(0, avic_base + AVIC_INTENABLEH);
+	imx_writel(0, avic_base + AVIC_INTENABLEL);
+
+	/* all IRQ no FIQ */
+	imx_writel(0, avic_base + AVIC_INTTYPEH);
+	imx_writel(0, avic_base + AVIC_INTTYPEL);
+
+	irq_base = irq_alloc_descs(-1, 0, AVIC_NUM_IRQS, numa_node_id());
+	WARN_ON(irq_base < 0);
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,avic");
+	domain = irq_domain_add_legacy(np, AVIC_NUM_IRQS, irq_base, 0,
+				       &irq_domain_simple_ops, NULL);
+	WARN_ON(!domain);
+
+	for (i = 0; i < AVIC_NUM_IRQS / 32; i++, irq_base += 32)
+		avic_init_gc(i, irq_base);
+
+	/* Set default priority value (0) for all IRQ's */
+	for (i = 0; i < 8; i++)
+		imx_writel(0, avic_base + AVIC_NIPRIORITY(i));
+
+	set_handle_irq(avic_handle_irq);
+
+#ifdef CONFIG_FIQ
+	/* Initialize FIQ */
+	init_FIQ(FIQ_START);
+#endif
+
+	printk(KERN_INFO "MXC IRQ initialized\n");
+}
+
+static int __init imx_avic_init(struct device_node *node,
+			       struct device_node *parent)
+{
+	void __iomem *avic_base;
+
+	avic_base = of_iomap(node, 0);
+	BUG_ON(!avic_base);
+	mxc_init_irq(avic_base);
+	return 0;
+}
+
+IRQCHIP_DECLARE(imx_avic, "fsl,avic", imx_avic_init);