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, 341 insertions, 0 deletions

diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
new file mode 100644
index 000000000..3cee05443
--- /dev/null
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/sys_wildfire.c
+ *
+ *  Wildfire support.
+ *
+ *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_wildfire.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+static unsigned long cached_irq_mask[WILDFIRE_NR_IRQS/(sizeof(long)*8)];
+
+DEFINE_SPINLOCK(wildfire_irq_lock);
+
+static int doing_init_irq_hw = 0;
+
+static void
+wildfire_update_irq_hw(unsigned int irq)
+{
+	int qbbno = (irq >> 8) & (WILDFIRE_MAX_QBB - 1);
+	int pcano = (irq >> 6) & (WILDFIRE_PCA_PER_QBB - 1);
+	wildfire_pca *pca;
+	volatile unsigned long * enable0;
+
+	if (!WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
+		if (!doing_init_irq_hw) {
+			printk(KERN_ERR "wildfire_update_irq_hw:"
+			       " got irq %d for non-existent PCA %d"
+			       " on QBB %d.\n",
+			       irq, pcano, qbbno);
+		}
+		return;
+	}
+
+	pca = WILDFIRE_pca(qbbno, pcano);
+	enable0 = (unsigned long *) &pca->pca_int[0].enable; /* ??? */
+
+	*enable0 = cached_irq_mask[qbbno * WILDFIRE_PCA_PER_QBB + pcano];
+	mb();
+	*enable0;
+}
+
+static void __init
+wildfire_init_irq_hw(void)
+{
+#if 0
+	register wildfire_pca * pca = WILDFIRE_pca(0, 0);
+	volatile unsigned long * enable0, * enable1, * enable2, *enable3;
+	volatile unsigned long * target0, * target1, * target2, *target3;
+
+	enable0 = (unsigned long *) &pca->pca_int[0].enable;
+	enable1 = (unsigned long *) &pca->pca_int[1].enable;
+	enable2 = (unsigned long *) &pca->pca_int[2].enable;
+	enable3 = (unsigned long *) &pca->pca_int[3].enable;
+
+	target0 = (unsigned long *) &pca->pca_int[0].target;
+	target1 = (unsigned long *) &pca->pca_int[1].target;
+	target2 = (unsigned long *) &pca->pca_int[2].target;
+	target3 = (unsigned long *) &pca->pca_int[3].target;
+
+	*enable0 = *enable1 = *enable2 = *enable3 = 0;
+
+	*target0 = (1UL<<8) | WILDFIRE_QBB(0);
+	*target1 = *target2 = *target3 = 0;
+
+	mb();
+
+	*enable0; *enable1; *enable2; *enable3;
+	*target0; *target1; *target2; *target3;
+
+#else
+	int i;
+
+	doing_init_irq_hw = 1;
+
+	/* Need to update only once for every possible PCA. */
+	for (i = 0; i < WILDFIRE_NR_IRQS; i+=WILDFIRE_IRQ_PER_PCA)
+		wildfire_update_irq_hw(i);
+
+	doing_init_irq_hw = 0;
+#endif
+}
+
+static void
+wildfire_enable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_enable_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	set_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static void
+wildfire_disable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_disable_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	clear_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static void
+wildfire_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_mask_and_ack_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	clear_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static struct irq_chip wildfire_irq_type = {
+	.name		= "WILDFIRE",
+	.irq_unmask	= wildfire_enable_irq,
+	.irq_mask	= wildfire_disable_irq,
+	.irq_mask_ack	= wildfire_mask_and_ack_irq,
+};
+
+static void __init
+wildfire_init_irq_per_pca(int qbbno, int pcano)
+{
+	int i, irq_bias;
+
+	irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+		 + pcano * WILDFIRE_IRQ_PER_PCA;
+
+#if 0
+	unsigned long io_bias;
+
+	/* Only need the following for first PCI bus per PCA. */
+	io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;
+
+	outb(0, DMA1_RESET_REG + io_bias);
+	outb(0, DMA2_RESET_REG + io_bias);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
+	outb(0, DMA2_MASK_REG + io_bias);
+#endif
+
+#if 0
+	/* ??? Not sure how to do this, yet... */
+	init_i8259a_irqs(); /* ??? */
+#endif
+
+	for (i = 0; i < 16; ++i) {
+		if (i == 2)
+			continue;
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
+	}
+
+	irq_set_chip_and_handler(36 + irq_bias, &wildfire_irq_type,
+				 handle_level_irq);
+	irq_set_status_flags(36 + irq_bias, IRQ_LEVEL);
+	for (i = 40; i < 64; ++i) {
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
+	}
+
+	if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL))
+		pr_err("Failed to register isa_enable interrupt\n");
+}
+
+static void __init
+wildfire_init_irq(void)
+{
+	int qbbno, pcano;
+
+#if 1
+	wildfire_init_irq_hw();
+	init_i8259a_irqs();
+#endif
+
+	for (qbbno = 0; qbbno < WILDFIRE_MAX_QBB; qbbno++) {
+	  if (WILDFIRE_QBB_EXISTS(qbbno)) {
+	    for (pcano = 0; pcano < WILDFIRE_PCA_PER_QBB; pcano++) {
+	      if (WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
+		wildfire_init_irq_per_pca(qbbno, pcano);
+	      }
+	    }
+	  }
+	}
+}
+
+static void 
+wildfire_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+	/*
+	 * bits 10-8:	source QBB ID
+	 * bits 7-6:	PCA
+	 * bits 5-0:	irq in PCA
+	 */
+
+	handle_irq(irq);
+	return;
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary per PCA (2 PCI or HIPPI buses):
+ *
+ * Bit      Meaning
+ * 0-15     ISA
+ *
+ *32        ISA summary
+ *33        SMI
+ *34        NMI
+ *36        builtin QLogic SCSI (or slot 0 if no IO module)
+ *40        Interrupt Line A from slot 2 PCI0
+ *41        Interrupt Line B from slot 2 PCI0
+ *42        Interrupt Line C from slot 2 PCI0
+ *43        Interrupt Line D from slot 2 PCI0
+ *44        Interrupt Line A from slot 3 PCI0
+ *45        Interrupt Line B from slot 3 PCI0
+ *46        Interrupt Line C from slot 3 PCI0
+ *47        Interrupt Line D from slot 3 PCI0
+ *
+ *48        Interrupt Line A from slot 4 PCI1
+ *49        Interrupt Line B from slot 4 PCI1
+ *50        Interrupt Line C from slot 4 PCI1
+ *51        Interrupt Line D from slot 4 PCI1
+ *52        Interrupt Line A from slot 5 PCI1
+ *53        Interrupt Line B from slot 5 PCI1
+ *54        Interrupt Line C from slot 5 PCI1
+ *55        Interrupt Line D from slot 5 PCI1
+ *56        Interrupt Line A from slot 6 PCI1
+ *57        Interrupt Line B from slot 6 PCI1
+ *58        Interrupt Line C from slot 6 PCI1
+ *50        Interrupt Line D from slot 6 PCI1
+ *60        Interrupt Line A from slot 7 PCI1
+ *61        Interrupt Line B from slot 7 PCI1
+ *62        Interrupt Line C from slot 7 PCI1
+ *63        Interrupt Line D from slot 7 PCI1
+ * 
+ *
+ * IdSel	
+ *   0	 Cypress Bridge I/O (ISA summary interrupt)
+ *   1	 64 bit PCI 0 option slot 1 (SCSI QLogic builtin)
+ *   2	 64 bit PCI 0 option slot 2
+ *   3	 64 bit PCI 0 option slot 3
+ *   4	 64 bit PCI 1 option slot 4
+ *   5	 64 bit PCI 1 option slot 5
+ *   6	 64 bit PCI 1 option slot 6
+ *   7	 64 bit PCI 1 option slot 7
+ */
+
+static int
+wildfire_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[8][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ -1,    -1,    -1,    -1,    -1}, /* IdSel 0 ISA Bridge */
+		{ 36,    36,    36+1, 36+2, 36+3}, /* IdSel 1 SCSI builtin */
+		{ 40,    40,    40+1, 40+2, 40+3}, /* IdSel 2 PCI 0 slot 2 */
+		{ 44,    44,    44+1, 44+2, 44+3}, /* IdSel 3 PCI 0 slot 3 */
+		{ 48,    48,    48+1, 48+2, 48+3}, /* IdSel 4 PCI 1 slot 4 */
+		{ 52,    52,    52+1, 52+2, 52+3}, /* IdSel 5 PCI 1 slot 5 */
+		{ 56,    56,    56+1, 56+2, 56+3}, /* IdSel 6 PCI 1 slot 6 */
+		{ 60,    60,    60+1, 60+2, 60+3}, /* IdSel 7 PCI 1 slot 7 */
+	};
+	long min_idsel = 0, max_idsel = 7, irqs_per_slot = 5;
+
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+
+	if (irq > 0) {
+		int qbbno = hose->index >> 3;
+		int pcano = (hose->index >> 1) & 3;
+		irq += (qbbno << 8) + (pcano << 6);
+	}
+	return irq;
+}
+
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector wildfire_mv __initmv = {
+	.vector_name		= "WILDFIRE",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_WILDFIRE_IO,
+	.machine_check		= wildfire_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+
+	.nr_irqs		= WILDFIRE_NR_IRQS,
+	.device_interrupt	= wildfire_device_interrupt,
+
+	.init_arch		= wildfire_init_arch,
+	.init_irq		= wildfire_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= wildfire_kill_arch,
+	.pci_map_irq		= wildfire_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(wildfire)