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, 332 insertions, 0 deletions

diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c
new file mode 100644
index 000000000..127d7ecdb
--- /dev/null
+++ b/arch/m68k/q40/q40ints.c
@@ -0,0 +1,332 @@
+/*
+ * arch/m68k/q40/q40ints.c
+ *
+ * Copyright (C) 1999,2001 Richard Zidlicky
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ * .. used to be loosely based on bvme6000ints.c
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <asm/machdep.h>
+#include <asm/ptrace.h>
+#include <asm/traps.h>
+
+#include <asm/q40_master.h>
+#include <asm/q40ints.h>
+
+/*
+ * Q40 IRQs are defined as follows:
+ *            3,4,5,6,7,10,11,14,15 : ISA dev IRQs
+ *            16-31: reserved
+ *            32   : keyboard int
+ *            33   : frame int (50/200 Hz periodic timer)
+ *            34   : sample int (10/20 KHz periodic timer)
+ *
+ */
+
+static void q40_irq_handler(unsigned int, struct pt_regs *fp);
+static void q40_irq_enable(struct irq_data *data);
+static void q40_irq_disable(struct irq_data *data);
+
+unsigned short q40_ablecount[35];
+unsigned short q40_state[35];
+
+static unsigned int q40_irq_startup(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
+
+	/* test for ISA ints not implemented by HW */
+	switch (irq) {
+	case 1: case 2: case 8: case 9:
+	case 11: case 12: case 13:
+		pr_warn("%s: ISA IRQ %d not implemented by HW\n", __func__,
+			irq);
+		/* FIXME return -ENXIO; */
+	}
+	return 0;
+}
+
+static void q40_irq_shutdown(struct irq_data *data)
+{
+}
+
+static struct irq_chip q40_irq_chip = {
+	.name		= "q40",
+	.irq_startup	= q40_irq_startup,
+	.irq_shutdown	= q40_irq_shutdown,
+	.irq_enable	= q40_irq_enable,
+	.irq_disable	= q40_irq_disable,
+};
+
+/*
+ * void q40_init_IRQ (void)
+ *
+ * Parameters:	None
+ *
+ * Returns:	Nothing
+ *
+ * This function is called during kernel startup to initialize
+ * the q40 IRQ handling routines.
+ */
+
+static int disabled;
+
+void __init q40_init_IRQ(void)
+{
+	m68k_setup_irq_controller(&q40_irq_chip, handle_simple_irq, 1,
+				  Q40_IRQ_MAX);
+
+	/* setup handler for ISA ints */
+	m68k_setup_auto_interrupt(q40_irq_handler);
+
+	m68k_irq_startup_irq(IRQ_AUTO_2);
+	m68k_irq_startup_irq(IRQ_AUTO_4);
+
+	/* now enable some ints.. */
+	master_outb(1, EXT_ENABLE_REG);  /* ISA IRQ 5-15 */
+
+	/* make sure keyboard IRQ is disabled */
+	master_outb(0, KEY_IRQ_ENABLE_REG);
+}
+
+
+/*
+ * this stuff doesn't really belong here..
+ */
+
+int ql_ticks;              /* 200Hz ticks since last jiffie */
+static int sound_ticks;
+
+#define SVOL 45
+
+void q40_mksound(unsigned int hz, unsigned int ticks)
+{
+	/* for now ignore hz, except that hz==0 switches off sound */
+	/* simply alternate the ampl (128-SVOL)-(128+SVOL)-..-.. at 200Hz */
+	if (hz == 0) {
+		if (sound_ticks)
+			sound_ticks = 1;
+
+		*DAC_LEFT = 128;
+		*DAC_RIGHT = 128;
+
+		return;
+	}
+	/* sound itself is done in q40_timer_int */
+	if (sound_ticks == 0)
+		sound_ticks = 1000; /* pretty long beep */
+	sound_ticks = ticks << 1;
+}
+
+static irqreturn_t q40_timer_int(int irq, void *dev_id)
+{
+	ql_ticks = ql_ticks ? 0 : 1;
+	if (sound_ticks) {
+		unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL;
+		sound_ticks--;
+		*DAC_LEFT=sval;
+		*DAC_RIGHT=sval;
+	}
+
+	if (!ql_ticks) {
+		unsigned long flags;
+
+		local_irq_save(flags);
+		legacy_timer_tick(1);
+		timer_heartbeat();
+		local_irq_restore(flags);
+	}
+	return IRQ_HANDLED;
+}
+
+void q40_sched_init (void)
+{
+	int timer_irq;
+
+	timer_irq = Q40_IRQ_FRAME;
+
+	if (request_irq(timer_irq, q40_timer_int, 0, "timer", NULL))
+		panic("Couldn't register timer int");
+
+	master_outb(-1, FRAME_CLEAR_REG);
+	master_outb( 1, FRAME_RATE_REG);
+}
+
+
+/*
+ * tables to translate bits into IRQ numbers
+ * it is a good idea to order the entries by priority
+ *
+*/
+
+struct IRQ_TABLE{ unsigned mask; int irq ;};
+#if 0
+static struct IRQ_TABLE iirqs[]={
+  {Q40_IRQ_FRAME_MASK,Q40_IRQ_FRAME},
+  {Q40_IRQ_KEYB_MASK,Q40_IRQ_KEYBOARD},
+  {0,0}};
+#endif
+static struct IRQ_TABLE eirqs[] = {
+  { .mask = Q40_IRQ3_MASK,	.irq = 3 },	/* ser 1 */
+  { .mask = Q40_IRQ4_MASK,	.irq = 4 },	/* ser 2 */
+  { .mask = Q40_IRQ14_MASK,	.irq = 14 },	/* IDE 1 */
+  { .mask = Q40_IRQ15_MASK,	.irq = 15 },	/* IDE 2 */
+  { .mask = Q40_IRQ6_MASK,	.irq = 6 },	/* floppy, handled elsewhere */
+  { .mask = Q40_IRQ7_MASK,	.irq = 7 },	/* par */
+  { .mask = Q40_IRQ5_MASK,	.irq = 5 },
+  { .mask = Q40_IRQ10_MASK,	.irq = 10 },
+  {0,0}
+};
+
+/* complain only this many times about spurious ints : */
+static int ccleirq=60;    /* ISA dev IRQs*/
+/*static int cclirq=60;*/     /* internal */
+
+/* FIXME: add shared ints,mask,unmask,probing.... */
+
+#define IRQ_INPROGRESS 1
+/*static unsigned short saved_mask;*/
+//static int do_tint=0;
+
+#define DEBUG_Q40INT
+/*#define IP_USE_DISABLE *//* would be nice, but crashes ???? */
+
+static int mext_disabled;	/* ext irq disabled by master chip? */
+static int aliased_irq;		/* how many times inside handler ?*/
+
+
+/* got interrupt, dispatch to ISA or keyboard/timer IRQs */
+static void q40_irq_handler(unsigned int irq, struct pt_regs *fp)
+{
+	unsigned mir, mer;
+	int i;
+
+//repeat:
+	mir = master_inb(IIRQ_REG);
+#ifdef CONFIG_BLK_DEV_FD
+	if ((mir & Q40_IRQ_EXT_MASK) &&
+	    (master_inb(EIRQ_REG) & Q40_IRQ6_MASK)) {
+		floppy_hardint();
+		return;
+	}
+#endif
+	switch (irq) {
+	case 4:
+	case 6:
+		do_IRQ(Q40_IRQ_SAMPLE, fp);
+		return;
+	}
+	if (mir & Q40_IRQ_FRAME_MASK) {
+		do_IRQ(Q40_IRQ_FRAME, fp);
+		master_outb(-1, FRAME_CLEAR_REG);
+	}
+	if ((mir & Q40_IRQ_SER_MASK) || (mir & Q40_IRQ_EXT_MASK)) {
+		mer = master_inb(EIRQ_REG);
+		for (i = 0; eirqs[i].mask; i++) {
+			if (mer & eirqs[i].mask) {
+				irq = eirqs[i].irq;
+/*
+ * There is a little mess wrt which IRQ really caused this irq request. The
+ * main problem is that IIRQ_REG and EIRQ_REG reflect the state when they
+ * are read - which is long after the request came in. In theory IRQs should
+ * not just go away but they occasionally do
+ */
+				if (irq > 4 && irq <= 15 && mext_disabled) {
+					/*aliased_irq++;*/
+					goto iirq;
+				}
+				if (q40_state[irq] & IRQ_INPROGRESS) {
+					/* some handlers do local_irq_enable() for irq latency reasons, */
+					/* however reentering an active irq handler is not permitted */
+#ifdef IP_USE_DISABLE
+					/* in theory this is the better way to do it because it still */
+					/* lets through eg the serial irqs, unfortunately it crashes */
+					disable_irq(irq);
+					disabled = 1;
+#else
+					/*pr_warn("IRQ_INPROGRESS detected for irq %d, disabling - %s disabled\n",
+						irq, disabled ? "already" : "not yet"); */
+					fp->sr = (((fp->sr) & (~0x700))+0x200);
+					disabled = 1;
+#endif
+					goto iirq;
+				}
+				q40_state[irq] |= IRQ_INPROGRESS;
+				do_IRQ(irq, fp);
+				q40_state[irq] &= ~IRQ_INPROGRESS;
+
+				/* naively enable everything, if that fails than    */
+				/* this function will be reentered immediately thus */
+				/* getting another chance to disable the IRQ        */
+
+				if (disabled) {
+#ifdef IP_USE_DISABLE
+					if (irq > 4) {
+						disabled = 0;
+						enable_irq(irq);
+					}
+#else
+					disabled = 0;
+					/*pr_info("reenabling irq %d\n", irq); */
+#endif
+				}
+// used to do 'goto repeat;' here, this delayed bh processing too long
+				return;
+			}
+		}
+		if (mer && ccleirq > 0 && !aliased_irq) {
+			pr_warn("ISA interrupt from unknown source? EIRQ_REG = %x\n",
+				mer);
+			ccleirq--;
+		}
+	}
+ iirq:
+	mir = master_inb(IIRQ_REG);
+	/* should test whether keyboard irq is really enabled, doing it in defhand */
+	if (mir & Q40_IRQ_KEYB_MASK)
+		do_IRQ(Q40_IRQ_KEYBOARD, fp);
+
+	return;
+}
+
+void q40_irq_enable(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
+
+	if (irq >= 5 && irq <= 15) {
+		mext_disabled--;
+		if (mext_disabled > 0)
+			pr_warn("q40_irq_enable : nested disable/enable\n");
+		if (mext_disabled == 0)
+			master_outb(1, EXT_ENABLE_REG);
+	}
+}
+
+
+void q40_irq_disable(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
+
+	/* disable ISA iqs : only do something if the driver has been
+	 * verified to be Q40 "compatible" - right now IDE, NE2K
+	 * Any driver should not attempt to sleep across disable_irq !!
+	 */
+
+	if (irq >= 5 && irq <= 15) {
+		master_outb(0, EXT_ENABLE_REG);
+		mext_disabled++;
+		if (mext_disabled > 1)
+			pr_info("disable_irq nesting count %d\n",
+				mext_disabled);
+	}
+}