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, 216 insertions, 0 deletions

diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
new file mode 100644
index 000000000..cf0eaa04b
--- /dev/null
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -0,0 +1,216 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *	intel TCO vendor specific watchdog driver support
+ *
+ *	(c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ *	Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor
+ *	provide warranty for any of this software. This material is
+ *	provided "AS-IS" and at no charge.
+ */
+
+/*
+ *	Includes, defines, variables, module parameters, ...
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+/* Module and version information */
+#define DRV_NAME	"iTCO_vendor_support"
+#define DRV_VERSION	"1.04"
+
+/* Includes */
+#include <linux/module.h>		/* For module specific items */
+#include <linux/moduleparam.h>		/* For new moduleparam's */
+#include <linux/types.h>		/* For standard types (like size_t) */
+#include <linux/errno.h>		/* For the -ENODEV/... values */
+#include <linux/kernel.h>		/* For printk/panic/... */
+#include <linux/init.h>			/* For __init/__exit/... */
+#include <linux/ioport.h>		/* For io-port access */
+#include <linux/io.h>			/* For inb/outb/... */
+
+#include "iTCO_vendor.h"
+
+/* List of vendor support modes */
+/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
+#define SUPERMICRO_OLD_BOARD	1
+/* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems - no longer supported */
+#define SUPERMICRO_NEW_BOARD	2
+/* Broken BIOS */
+#define BROKEN_BIOS		911
+
+int iTCO_vendorsupport;
+EXPORT_SYMBOL(iTCO_vendorsupport);
+
+module_param_named(vendorsupport, iTCO_vendorsupport, int, 0);
+MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default="
+			"0 (none), 1=SuperMicro Pent3, 911=Broken SMI BIOS");
+
+/*
+ *	Vendor Specific Support
+ */
+
+/*
+ *	Vendor Support: 1
+ *	Board: Super Micro Computer Inc. 370SSE+-OEM1/P3TSSE
+ *	iTCO chipset: ICH2
+ *
+ *	Code contributed by: R. Seretny <lkpatches@paypc.com>
+ *	Documentation obtained by R. Seretny from SuperMicro Technical Support
+ *
+ *	To enable Watchdog function:
+ *	    BIOS setup -> Power -> TCO Logic SMI Enable -> Within5Minutes
+ *	    This setting enables SMI to clear the watchdog expired flag.
+ *	    If BIOS or CPU fail which may cause SMI hang, then system will
+ *	    reboot. When application starts to use watchdog function,
+ *	    application has to take over the control from SMI.
+ *
+ *	    For P3TSSE, J36 jumper needs to be removed to enable the Watchdog
+ *	    function.
+ *
+ *	    Note: The system will reboot when Expire Flag is set TWICE.
+ *	    So, if the watchdog timer is 20 seconds, then the maximum hang
+ *	    time is about 40 seconds, and the minimum hang time is about
+ *	    20.6 seconds.
+ */
+
+static void supermicro_old_pre_start(struct resource *smires)
+{
+	unsigned long val32;
+
+	/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+	val32 = inl(smires->start);
+	val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
+	outl(val32, smires->start);	/* Needed to activate watchdog */
+}
+
+static void supermicro_old_pre_stop(struct resource *smires)
+{
+	unsigned long val32;
+
+	/* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
+	val32 = inl(smires->start);
+	val32 |= 0x00002000;	/* Turn on SMI clearing watchdog */
+	outl(val32, smires->start);	/* Needed to deactivate watchdog */
+}
+
+/*
+ *	Vendor Support: 911
+ *	Board: Some Intel ICHx based motherboards
+ *	iTCO chipset: ICH7+
+ *
+ *	Some Intel motherboards have a broken BIOS implementation: i.e.
+ *	the SMI handler clear's the TIMEOUT bit in the TC01_STS register
+ *	and does not reload the time. Thus the TCO watchdog does not reboot
+ *	the system.
+ *
+ *	These are the conclusions of Andriy Gapon <avg@icyb.net.ua> after
+ *	debugging: the SMI handler is quite simple - it tests value in
+ *	TCO1_CNT against 0x800, i.e. checks TCO_TMR_HLT. If the bit is set
+ *	the handler goes into an infinite loop, apparently to allow the
+ *	second timeout and reboot. Otherwise it simply clears TIMEOUT bit
+ *	in TCO1_STS and that's it.
+ *	So the logic seems to be reversed, because it is hard to see how
+ *	TIMEOUT can get set to 1 and SMI generated when TCO_TMR_HLT is set
+ *	(other than a transitional effect).
+ *
+ *	The only fix found to get the motherboard(s) to reboot is to put
+ *	the glb_smi_en bit to 0. This is a dirty hack that bypasses the
+ *	broken code by disabling Global SMI.
+ *
+ *	WARNING: globally disabling SMI could possibly lead to dramatic
+ *	problems, especially on laptops! I.e. various ACPI things where
+ *	SMI is used for communication between OS and firmware.
+ *
+ *	Don't use this fix if you don't need to!!!
+ */
+
+static void broken_bios_start(struct resource *smires)
+{
+	unsigned long val32;
+
+	val32 = inl(smires->start);
+	/* Bit 13: TCO_EN     -> 0 = Disables TCO logic generating an SMI#
+	   Bit  0: GBL_SMI_EN -> 0 = No SMI# will be generated by ICH. */
+	val32 &= 0xffffdffe;
+	outl(val32, smires->start);
+}
+
+static void broken_bios_stop(struct resource *smires)
+{
+	unsigned long val32;
+
+	val32 = inl(smires->start);
+	/* Bit 13: TCO_EN     -> 1 = Enables TCO logic generating an SMI#
+	   Bit  0: GBL_SMI_EN -> 1 = Turn global SMI on again. */
+	val32 |= 0x00002001;
+	outl(val32, smires->start);
+}
+
+/*
+ *	Generic Support Functions
+ */
+
+void iTCO_vendor_pre_start(struct resource *smires,
+			   unsigned int heartbeat)
+{
+	switch (iTCO_vendorsupport) {
+	case SUPERMICRO_OLD_BOARD:
+		supermicro_old_pre_start(smires);
+		break;
+	case BROKEN_BIOS:
+		broken_bios_start(smires);
+		break;
+	}
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_start);
+
+void iTCO_vendor_pre_stop(struct resource *smires)
+{
+	switch (iTCO_vendorsupport) {
+	case SUPERMICRO_OLD_BOARD:
+		supermicro_old_pre_stop(smires);
+		break;
+	case BROKEN_BIOS:
+		broken_bios_stop(smires);
+		break;
+	}
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_stop);
+
+int iTCO_vendor_check_noreboot_on(void)
+{
+	switch (iTCO_vendorsupport) {
+	case SUPERMICRO_OLD_BOARD:
+		return 0;
+	default:
+		return 1;
+	}
+}
+EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on);
+
+static int __init iTCO_vendor_init_module(void)
+{
+	if (iTCO_vendorsupport == SUPERMICRO_NEW_BOARD) {
+		pr_warn("Option vendorsupport=%d is no longer supported, "
+			"please use the w83627hf_wdt driver instead\n",
+			SUPERMICRO_NEW_BOARD);
+		return -EINVAL;
+	}
+	pr_info("vendor-support=%d\n", iTCO_vendorsupport);
+	return 0;
+}
+
+static void __exit iTCO_vendor_exit_module(void)
+{
+	pr_info("Module Unloaded\n");
+}
+
+module_init(iTCO_vendor_init_module);
+module_exit(iTCO_vendor_exit_module);
+
+MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>, "
+		"R. Seretny <lkpatches@paypc.com>");
+MODULE_DESCRIPTION("Intel TCO Vendor Specific WatchDog Timer Driver Support");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");