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, 225 insertions, 0 deletions

diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
new file mode 100644
index 000000000..d17e44c99
--- /dev/null
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Alpha specific irq code.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+
+#include <asm/machvec.h>
+#include <asm/dma.h>
+#include <asm/perf_event.h>
+#include <asm/mce.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+/* Hack minimum IPL during interrupt processing for broken hardware.  */
+#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
+int __min_ipl;
+EXPORT_SYMBOL(__min_ipl);
+#endif
+
+/*
+ * Performance counter hook.  A module can override this to
+ * do something useful.
+ */
+static void
+dummy_perf(unsigned long vector, struct pt_regs *regs)
+{
+	irq_err_count++;
+	printk(KERN_CRIT "Performance counter interrupt!\n");
+}
+
+void (*perf_irq)(unsigned long, struct pt_regs *) = dummy_perf;
+EXPORT_SYMBOL(perf_irq);
+
+/*
+ * The main interrupt entry point.
+ */
+
+asmlinkage void 
+do_entInt(unsigned long type, unsigned long vector,
+	  unsigned long la_ptr, struct pt_regs *regs)
+{
+	struct pt_regs *old_regs;
+
+	/*
+	 * Disable interrupts during IRQ handling.
+	 * Note that there is no matching local_irq_enable() due to
+	 * severe problems with RTI at IPL0 and some MILO PALcode
+	 * (namely LX164).
+	 */
+	local_irq_disable();
+	switch (type) {
+	case 0:
+#ifdef CONFIG_SMP
+		handle_ipi(regs);
+		return;
+#else
+		irq_err_count++;
+		printk(KERN_CRIT "Interprocessor interrupt? "
+		       "You must be kidding!\n");
+#endif
+		break;
+	case 1:
+		old_regs = set_irq_regs(regs);
+		handle_irq(RTC_IRQ);
+		set_irq_regs(old_regs);
+		return;
+	case 2:
+		old_regs = set_irq_regs(regs);
+		alpha_mv.machine_check(vector, la_ptr);
+		set_irq_regs(old_regs);
+		return;
+	case 3:
+		old_regs = set_irq_regs(regs);
+		alpha_mv.device_interrupt(vector);
+		set_irq_regs(old_regs);
+		return;
+	case 4:
+		perf_irq(la_ptr, regs);
+		return;
+	default:
+		printk(KERN_CRIT "Hardware intr %ld %lx? Huh?\n",
+		       type, vector);
+	}
+	printk(KERN_CRIT "PC = %016lx PS=%04lx\n", regs->pc, regs->ps);
+}
+
+void __init
+common_init_isa_dma(void)
+{
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(0, DMA1_CLR_MASK_REG);
+	outb(0, DMA2_CLR_MASK_REG);
+}
+
+void __init
+init_IRQ(void)
+{
+	/* Just in case the platform init_irq() causes interrupts/mchecks
+	   (as is the case with RAWHIDE, at least).  */
+	wrent(entInt, 0);
+
+	alpha_mv.init_irq();
+}
+
+/*
+ * machine error checks
+ */
+#define MCHK_K_TPERR           0x0080
+#define MCHK_K_TCPERR          0x0082
+#define MCHK_K_HERR            0x0084
+#define MCHK_K_ECC_C           0x0086
+#define MCHK_K_ECC_NC          0x0088
+#define MCHK_K_OS_BUGCHECK     0x008A
+#define MCHK_K_PAL_BUGCHECK    0x0090
+
+#ifndef CONFIG_SMP
+struct mcheck_info __mcheck_info;
+#endif
+
+void
+process_mcheck_info(unsigned long vector, unsigned long la_ptr,
+		    const char *machine, int expected)
+{
+	struct el_common *mchk_header;
+	const char *reason;
+
+	/*
+	 * See if the machine check is due to a badaddr() and if so,
+	 * ignore it.
+	 */
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		printk(KERN_CRIT "%s machine check %s\n", machine,
+		       expected ? "expected." : "NOT expected!!!");
+	}
+#endif
+
+	if (expected) {
+		int cpu = smp_processor_id();
+		mcheck_expected(cpu) = 0;
+		mcheck_taken(cpu) = 1;
+		return;
+	}
+
+	mchk_header = (struct el_common *)la_ptr;
+
+	printk(KERN_CRIT "%s machine check: vector=0x%lx pc=0x%lx code=0x%x\n",
+	       machine, vector, get_irq_regs()->pc, mchk_header->code);
+
+	switch (mchk_header->code) {
+	/* Machine check reasons.  Defined according to PALcode sources.  */
+	case 0x80: reason = "tag parity error"; break;
+	case 0x82: reason = "tag control parity error"; break;
+	case 0x84: reason = "generic hard error"; break;
+	case 0x86: reason = "correctable ECC error"; break;
+	case 0x88: reason = "uncorrectable ECC error"; break;
+	case 0x8A: reason = "OS-specific PAL bugcheck"; break;
+	case 0x90: reason = "callsys in kernel mode"; break;
+	case 0x96: reason = "i-cache read retryable error"; break;
+	case 0x98: reason = "processor detected hard error"; break;
+	
+	/* System specific (these are for Alcor, at least): */
+	case 0x202: reason = "system detected hard error"; break;
+	case 0x203: reason = "system detected uncorrectable ECC error"; break;
+	case 0x204: reason = "SIO SERR occurred on PCI bus"; break;
+	case 0x205: reason = "parity error detected by core logic"; break;
+	case 0x206: reason = "SIO IOCHK occurred on ISA bus"; break;
+	case 0x207: reason = "non-existent memory error"; break;
+	case 0x208: reason = "MCHK_K_DCSR"; break;
+	case 0x209: reason = "PCI SERR detected"; break;
+	case 0x20b: reason = "PCI data parity error detected"; break;
+	case 0x20d: reason = "PCI address parity error detected"; break;
+	case 0x20f: reason = "PCI master abort error"; break;
+	case 0x211: reason = "PCI target abort error"; break;
+	case 0x213: reason = "scatter/gather PTE invalid error"; break;
+	case 0x215: reason = "flash ROM write error"; break;
+	case 0x217: reason = "IOA timeout detected"; break;
+	case 0x219: reason = "IOCHK#, EISA add-in board parity or other catastrophic error"; break;
+	case 0x21b: reason = "EISA fail-safe timer timeout"; break;
+	case 0x21d: reason = "EISA bus time-out"; break;
+	case 0x21f: reason = "EISA software generated NMI"; break;
+	case 0x221: reason = "unexpected ev5 IRQ[3] interrupt"; break;
+	default: reason = "unknown"; break;
+	}
+
+	printk(KERN_CRIT "machine check type: %s%s\n",
+	       reason, mchk_header->retry ? " (retryable)" : "");
+
+	dik_show_regs(get_irq_regs(), NULL);
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		/* Dump the logout area to give all info.  */
+		unsigned long *ptr = (unsigned long *)la_ptr;
+		long i;
+		for (i = 0; i < mchk_header->size / sizeof(long); i += 2) {
+			printk(KERN_CRIT "   +%8lx %016lx %016lx\n",
+			       i*sizeof(long), ptr[i], ptr[i+1]);
+		}
+	}
+#endif /* CONFIG_VERBOSE_MCHECK */
+}
+
+/*
+ * The special RTC interrupt type.  The interrupt itself was
+ * processed by PALcode, and comes in via entInt vector 1.
+ */
+void __init
+init_rtc_irq(irq_handler_t handler)
+{
+	irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
+				      handle_percpu_irq, "RTC");
+	if (!handler)
+		handler = rtc_timer_interrupt;
+	if (request_irq(RTC_IRQ, handler, 0, "timer", NULL))
+		pr_err("Failed to register timer interrupt\n");
+}