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, 360 insertions, 0 deletions

diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
new file mode 100644
index 000000000..f8920d001
--- /dev/null
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/arch/arm/kernel/dec21285.c: PCI functions for DC21285
+ *
+ *  Copyright (C) 1998-2001 Russell King
+ *  Copyright (C) 1998-2000 Phil Blundell
+ */
+#include <linux/dma-map-ops.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/hardware/dec21285.h>
+
+#define MAX_SLOTS		21
+
+#define PCICMD_ABORT		((PCI_STATUS_REC_MASTER_ABORT| \
+				  PCI_STATUS_REC_TARGET_ABORT)<<16)
+
+#define PCICMD_ERROR_BITS	((PCI_STATUS_DETECTED_PARITY | \
+				  PCI_STATUS_REC_MASTER_ABORT | \
+				  PCI_STATUS_REC_TARGET_ABORT | \
+				  PCI_STATUS_PARITY) << 16)
+
+extern int setup_arm_irq(int, struct irqaction *);
+
+static unsigned long
+dc21285_base_address(struct pci_bus *bus, unsigned int devfn)
+{
+	unsigned long addr = 0;
+
+	if (bus->number == 0) {
+		if (PCI_SLOT(devfn) == 0)
+			/*
+			 * For devfn 0, point at the 21285
+			 */
+			addr = ARMCSR_BASE;
+		else {
+			devfn -= 1 << 3;
+
+			if (devfn < PCI_DEVFN(MAX_SLOTS, 0))
+				addr = PCICFG0_BASE | 0xc00000 | (devfn << 8);
+		}
+	} else
+		addr = PCICFG1_BASE | (bus->number << 16) | (devfn << 8);
+
+	return addr;
+}
+
+static int
+dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 *value)
+{
+	unsigned long addr = dc21285_base_address(bus, devfn);
+	u32 v = 0xffffffff;
+
+	if (addr)
+		switch (size) {
+		case 1:
+			asm volatile("ldrb	%0, [%1, %2]"
+				: "=r" (v) : "r" (addr), "r" (where) : "cc");
+			break;
+		case 2:
+			asm volatile("ldrh	%0, [%1, %2]"
+				: "=r" (v) : "r" (addr), "r" (where) : "cc");
+			break;
+		case 4:
+			asm volatile("ldr	%0, [%1, %2]"
+				: "=r" (v) : "r" (addr), "r" (where) : "cc");
+			break;
+		}
+
+	*value = v;
+
+	v = *CSR_PCICMD;
+	if (v & PCICMD_ABORT) {
+		*CSR_PCICMD = v & (0xffff|PCICMD_ABORT);
+		return -1;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 value)
+{
+	unsigned long addr = dc21285_base_address(bus, devfn);
+	u32 v;
+
+	if (addr)
+		switch (size) {
+		case 1:
+			asm volatile("strb	%0, [%1, %2]"
+				: : "r" (value), "r" (addr), "r" (where)
+				: "cc");
+			break;
+		case 2:
+			asm volatile("strh	%0, [%1, %2]"
+				: : "r" (value), "r" (addr), "r" (where)
+				: "cc");
+			break;
+		case 4:
+			asm volatile("str	%0, [%1, %2]"
+				: : "r" (value), "r" (addr), "r" (where)
+				: "cc");
+			break;
+		}
+
+	v = *CSR_PCICMD;
+	if (v & PCICMD_ABORT) {
+		*CSR_PCICMD = v & (0xffff|PCICMD_ABORT);
+		return -1;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops dc21285_ops = {
+	.read	= dc21285_read_config,
+	.write	= dc21285_write_config,
+};
+
+static struct timer_list serr_timer;
+static struct timer_list perr_timer;
+
+static void dc21285_enable_error(struct timer_list *timer)
+{
+	del_timer(timer);
+
+	if (timer == &serr_timer)
+		enable_irq(IRQ_PCI_SERR);
+	else if (timer == &perr_timer)
+		enable_irq(IRQ_PCI_PERR);
+}
+
+/*
+ * Warn on PCI errors.
+ */
+static irqreturn_t dc21285_abort_irq(int irq, void *dev_id)
+{
+	unsigned int cmd;
+	unsigned int status;
+
+	cmd = *CSR_PCICMD;
+	status = cmd >> 16;
+	cmd = cmd & 0xffff;
+
+	if (status & PCI_STATUS_REC_MASTER_ABORT) {
+		printk(KERN_DEBUG "PCI: master abort, pc=0x%08lx\n",
+			instruction_pointer(get_irq_regs()));
+		cmd |= PCI_STATUS_REC_MASTER_ABORT << 16;
+	}
+
+	if (status & PCI_STATUS_REC_TARGET_ABORT) {
+		printk(KERN_DEBUG "PCI: target abort: ");
+		pcibios_report_status(PCI_STATUS_REC_MASTER_ABORT |
+				      PCI_STATUS_SIG_TARGET_ABORT |
+				      PCI_STATUS_REC_TARGET_ABORT, 1);
+		printk("\n");
+
+		cmd |= PCI_STATUS_REC_TARGET_ABORT << 16;
+	}
+
+	*CSR_PCICMD = cmd;
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dc21285_serr_irq(int irq, void *dev_id)
+{
+	struct timer_list *timer = dev_id;
+	unsigned int cntl;
+
+	printk(KERN_DEBUG "PCI: system error received: ");
+	pcibios_report_status(PCI_STATUS_SIG_SYSTEM_ERROR, 1);
+	printk("\n");
+
+	cntl = *CSR_SA110_CNTL & 0xffffdf07;
+	*CSR_SA110_CNTL = cntl | SA110_CNTL_RXSERR;
+
+	/*
+	 * back off this interrupt
+	 */
+	disable_irq(irq);
+	timer->expires = jiffies + HZ;
+	add_timer(timer);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dc21285_discard_irq(int irq, void *dev_id)
+{
+	printk(KERN_DEBUG "PCI: discard timer expired\n");
+	*CSR_SA110_CNTL &= 0xffffde07;
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dc21285_dparity_irq(int irq, void *dev_id)
+{
+	unsigned int cmd;
+
+	printk(KERN_DEBUG "PCI: data parity error detected: ");
+	pcibios_report_status(PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY, 1);
+	printk("\n");
+
+	cmd = *CSR_PCICMD & 0xffff;
+	*CSR_PCICMD = cmd | 1 << 24;
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dc21285_parity_irq(int irq, void *dev_id)
+{
+	struct timer_list *timer = dev_id;
+	unsigned int cmd;
+
+	printk(KERN_DEBUG "PCI: parity error detected: ");
+	pcibios_report_status(PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY, 1);
+	printk("\n");
+
+	cmd = *CSR_PCICMD & 0xffff;
+	*CSR_PCICMD = cmd | 1 << 31;
+
+	/*
+	 * back off this interrupt
+	 */
+	disable_irq(irq);
+	timer->expires = jiffies + HZ;
+	add_timer(timer);
+
+	return IRQ_HANDLED;
+}
+
+static int dc21285_pci_bus_notifier(struct notifier_block *nb,
+				    unsigned long action,
+				    void *data)
+{
+	if (action != BUS_NOTIFY_ADD_DEVICE)
+		return NOTIFY_DONE;
+
+	dma_direct_set_offset(data, PHYS_OFFSET, BUS_OFFSET, SZ_256M);
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block dc21285_pci_bus_nb = {
+	.notifier_call = dc21285_pci_bus_notifier,
+};
+
+int __init dc21285_setup(int nr, struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	res = kcalloc(2, sizeof(struct resource), GFP_KERNEL);
+	if (!res) {
+		printk("out of memory for root bus resources");
+		return 0;
+	}
+
+	res[0].flags = IORESOURCE_MEM;
+	res[0].name  = "Footbridge non-prefetch";
+	res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
+	res[1].name  = "Footbridge prefetch";
+
+	allocate_resource(&iomem_resource, &res[1], 0x20000000,
+			  0xa0000000, 0xffffffff, 0x20000000, NULL, NULL);
+	allocate_resource(&iomem_resource, &res[0], 0x40000000,
+			  0x80000000, 0xffffffff, 0x40000000, NULL, NULL);
+
+	sys->mem_offset  = DC21285_PCI_MEM;
+
+	pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset);
+	pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+
+	bus_register_notifier(&pci_bus_type, &dc21285_pci_bus_nb);
+
+	return 1;
+}
+
+#define dc21285_request_irq(_a, _b, _c, _d, _e) \
+	WARN_ON(request_irq(_a, _b, _c, _d, _e) < 0)
+
+void __init dc21285_preinit(void)
+{
+	unsigned int mem_size, mem_mask;
+
+	pcibios_min_mem = 0x81000000;
+
+	mem_size = (unsigned int)high_memory - PAGE_OFFSET;
+	for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1)
+		if (mem_mask >= mem_size)
+			break;
+
+	/*
+	 * These registers need to be set up whether we're the
+	 * central function or not.
+	 */
+	*CSR_SDRAMBASEMASK    = (mem_mask - 1) & 0x0ffc0000;
+	*CSR_SDRAMBASEOFFSET  = 0;
+	*CSR_ROMBASEMASK      = 0x80000000;
+	*CSR_CSRBASEMASK      = 0;
+	*CSR_CSRBASEOFFSET    = 0;
+	*CSR_PCIADDR_EXTN     = 0;
+
+	printk(KERN_INFO "PCI: DC21285 footbridge, revision %02lX, in "
+		"central function mode\n", *CSR_CLASSREV & 0xff);
+
+	/*
+	 * Clear any existing errors - we aren't
+	 * interested in historical data...
+	 */
+	*CSR_SA110_CNTL	= (*CSR_SA110_CNTL & 0xffffde07) | SA110_CNTL_RXSERR;
+	*CSR_PCICMD = (*CSR_PCICMD & 0xffff) | PCICMD_ERROR_BITS;
+
+	timer_setup(&serr_timer, dc21285_enable_error, 0);
+	timer_setup(&perr_timer, dc21285_enable_error, 0);
+
+	/*
+	 * We don't care if these fail.
+	 */
+	dc21285_request_irq(IRQ_PCI_SERR, dc21285_serr_irq, 0,
+			    "PCI system error", &serr_timer);
+	dc21285_request_irq(IRQ_PCI_PERR, dc21285_parity_irq, 0,
+			    "PCI parity error", &perr_timer);
+	dc21285_request_irq(IRQ_PCI_ABORT, dc21285_abort_irq, 0,
+			    "PCI abort", NULL);
+	dc21285_request_irq(IRQ_DISCARD_TIMER, dc21285_discard_irq, 0,
+			    "Discard timer", NULL);
+	dc21285_request_irq(IRQ_PCI_DPERR, dc21285_dparity_irq, 0,
+			    "PCI data parity", NULL);
+
+	/*
+	 * Map our SDRAM at a known address in PCI space, just in case
+	 * the firmware had other ideas.  Using a nonzero base is
+	 * necessary, since some VGA cards forcefully use PCI addresses
+	 * in the range 0x000a0000 to 0x000c0000. (eg, S3 cards).
+	 */
+	*CSR_PCICSRBASE       = 0xf4000000;
+	*CSR_PCICSRIOBASE     = 0;
+	*CSR_PCISDRAMBASE     = BUS_OFFSET;
+	*CSR_PCIROMBASE       = 0;
+	*CSR_PCICMD = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
+		      PCI_COMMAND_INVALIDATE | PCICMD_ERROR_BITS;
+}
+
+void __init dc21285_postinit(void)
+{
+	register_isa_ports(DC21285_PCI_MEM, DC21285_PCI_IO, 0);
+}