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, 271 insertions, 0 deletions

diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c
new file mode 100644
index 000000000..b5846ffda
--- /dev/null
+++ b/arch/alpha/kernel/sys_rawhide.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_rawhide.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the RAWHIDE.
+ */
+
+#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 <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_mcpcia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/*
+ * HACK ALERT! only the boot cpu is used for interrupts.
+ */
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+
+static unsigned int hose_irq_masks[4] = {
+	0xff0000, 0xfe0000, 0xff0000, 0xff0000
+};
+static unsigned int cached_irq_masks[4];
+DEFINE_SPINLOCK(rawhide_irq_lock);
+
+static inline void
+rawhide_update_irq_hw(int hose, int mask)
+{
+	*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(hose)) = mask;
+	mb();
+	*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(hose));
+}
+
+#define hose_exists(h) \
+  (((h) < MCPCIA_MAX_HOSES) && (cached_irq_masks[(h)] != 0))
+
+static inline void 
+rawhide_enable_irq(struct irq_data *d)
+{
+	unsigned int mask, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask = 1 << irq;
+
+	spin_lock(&rawhide_irq_lock);
+	mask |= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static void 
+rawhide_disable_irq(struct irq_data *d)
+{
+	unsigned int mask, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask = ~(1 << irq) | hose_irq_masks[hose];
+
+	spin_lock(&rawhide_irq_lock);
+	mask &= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static void
+rawhide_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned int mask, mask1, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask1 = 1 << irq;
+	mask = ~mask1 | hose_irq_masks[hose];
+
+	spin_lock(&rawhide_irq_lock);
+
+	mask &= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+
+	/* Clear the interrupt.  */
+	*(vuip)MCPCIA_INT_REQ(MCPCIA_HOSE2MID(hose)) = mask1;
+
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static struct irq_chip rawhide_irq_type = {
+	.name		= "RAWHIDE",
+	.irq_unmask	= rawhide_enable_irq,
+	.irq_mask	= rawhide_disable_irq,
+	.irq_mask_ack	= rawhide_mask_and_ack_irq,
+};
+
+static void 
+rawhide_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+        /*
+         * The RAWHIDE SRM console reports PCI interrupts with a vector
+	 * 0x80 *higher* than one might expect, as PCI IRQ 0 (ie bit 0)
+	 * shows up as IRQ 24, etc, etc. We adjust it down by 8 to have
+	 * it line up with the actual bit numbers from the REQ registers,
+	 * which is how we manage the interrupts/mask. Sigh...
+	 *
+	 * Also, PCI #1 interrupts are offset some more... :-(
+         */
+
+	if (irq == 52) {
+		/* SCSI on PCI1 is special.  */
+		irq = 72;
+	}
+
+	/* Adjust by which hose it is from.  */
+	irq -= ((irq + 16) >> 2) & 0x38;
+
+	handle_irq(irq);
+}
+
+static void __init
+rawhide_init_irq(void)
+{
+	struct pci_controller *hose;
+	long i;
+
+	mcpcia_init_hoses();
+
+	/* Clear them all; only hoses that exist will be non-zero. */
+	for (i = 0; i < MCPCIA_MAX_HOSES; i++) cached_irq_masks[i] = 0;
+
+	for (hose = hose_head; hose; hose = hose->next) {
+		unsigned int h = hose->index;
+		unsigned int mask = hose_irq_masks[h];
+
+		cached_irq_masks[h] = mask;
+		*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(h)) = mask;
+		*(vuip)MCPCIA_INT_MASK1(MCPCIA_HOSE2MID(h)) = 0;
+	}
+
+	for (i = 16; i < 128; ++i) {
+		irq_set_chip_and_handler(i, &rawhide_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ MCPCIA_PCI0_INT_REQ:
+ * Bit      Meaning
+ * 0        Interrupt Line A from slot 2 PCI0
+ * 1        Interrupt Line B from slot 2 PCI0
+ * 2        Interrupt Line C from slot 2 PCI0
+ * 3        Interrupt Line D from slot 2 PCI0
+ * 4        Interrupt Line A from slot 3 PCI0
+ * 5        Interrupt Line B from slot 3 PCI0
+ * 6        Interrupt Line C from slot 3 PCI0
+ * 7        Interrupt Line D from slot 3 PCI0
+ * 8        Interrupt Line A from slot 4 PCI0
+ * 9        Interrupt Line B from slot 4 PCI0
+ * 10       Interrupt Line C from slot 4 PCI0
+ * 11       Interrupt Line D from slot 4 PCI0
+ * 12       Interrupt Line A from slot 5 PCI0
+ * 13       Interrupt Line B from slot 5 PCI0
+ * 14       Interrupt Line C from slot 5 PCI0
+ * 15       Interrupt Line D from slot 5 PCI0
+ * 16       EISA interrupt (PCI 0) or SCSI interrupt (PCI 1)
+ * 17-23    NA
+ *
+ * IdSel	
+ *   1	 EISA bridge (PCI bus 0 only)
+ *   2 	 PCI option slot 2
+ *   3	 PCI option slot 3
+ *   4   PCI option slot 4
+ *   5   PCI option slot 5
+ * 
+ */
+
+static int
+rawhide_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ 16+16, 16+16, 16+16, 16+16, 16+16}, /* IdSel 1 SCSI PCI 1 */
+		{ 16+ 0, 16+ 0, 16+ 1, 16+ 2, 16+ 3}, /* IdSel 2 slot 2 */
+		{ 16+ 4, 16+ 4, 16+ 5, 16+ 6, 16+ 7}, /* IdSel 3 slot 3 */
+		{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 4 slot 4 */
+		{ 16+12, 16+12, 16+13, 16+14, 16+15}  /* IdSel 5 slot 5 */
+	};
+	const long min_idsel = 1, max_idsel = 5, irqs_per_slot = 5;
+
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+	if (irq >= 0)
+		irq += 24 * hose->index;
+	return irq;
+}
+
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector rawhide_mv __initmv = {
+	.vector_name		= "Rawhide",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_MCPCIA_IO,
+	.machine_check		= mcpcia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= MCPCIA_DEFAULT_MEM_BASE,
+	.pci_dac_offset		= MCPCIA_DAC_OFFSET,
+
+	.nr_irqs		= 128,
+	.device_interrupt	= rawhide_srm_device_interrupt,
+
+	.init_arch		= mcpcia_init_arch,
+	.init_irq		= rawhide_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= NULL,
+	.pci_map_irq		= rawhide_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(rawhide)