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, 305 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
new file mode 100644
index 000000000..09f1790d0
--- /dev/null
+++ b/arch/powerpc/include/asm/paca.h
@@ -0,0 +1,305 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * This control block defines the PACA which defines the processor
+ * specific data for each logical processor on the system.
+ * There are some pointers defined that are utilized by PLIC.
+ *
+ * C 2001 PPC 64 Team, IBM Corp
+ */
+#ifndef _ASM_POWERPC_PACA_H
+#define _ASM_POWERPC_PACA_H
+#ifdef __KERNEL__
+
+#ifdef CONFIG_PPC64
+
+#include <linux/cache.h>
+#include <linux/string.h>
+#include <asm/types.h>
+#include <asm/lppaca.h>
+#include <asm/mmu.h>
+#include <asm/page.h>
+#ifdef CONFIG_PPC_BOOK3E_64
+#include <asm/exception-64e.h>
+#else
+#include <asm/exception-64s.h>
+#endif
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+#include <asm/kvm_book3s_asm.h>
+#endif
+#include <asm/accounting.h>
+#include <asm/hmi.h>
+#include <asm/cpuidle.h>
+#include <asm/atomic.h>
+#include <asm/mce.h>
+
+#include <asm-generic/mmiowb_types.h>
+
+register struct paca_struct *local_paca asm("r13");
+
+#if defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_SMP)
+extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */
+/*
+ * Add standard checks that preemption cannot occur when using get_paca():
+ * otherwise the paca_struct it points to may be the wrong one just after.
+ */
+#define get_paca()	((void) debug_smp_processor_id(), local_paca)
+#else
+#define get_paca()	local_paca
+#endif
+
+#ifdef CONFIG_PPC_PSERIES
+#define get_lppaca()	(get_paca()->lppaca_ptr)
+#endif
+
+#define get_slb_shadow()	(get_paca()->slb_shadow_ptr)
+
+struct task_struct;
+struct rtas_args;
+
+/*
+ * Defines the layout of the paca.
+ *
+ * This structure is not directly accessed by firmware or the service
+ * processor.
+ */
+struct paca_struct {
+#ifdef CONFIG_PPC_PSERIES
+	/*
+	 * Because hw_cpu_id, unlike other paca fields, is accessed
+	 * routinely from other CPUs (from the IRQ code), we stick to
+	 * read-only (after boot) fields in the first cacheline to
+	 * avoid cacheline bouncing.
+	 */
+
+	struct lppaca *lppaca_ptr;	/* Pointer to LpPaca for PLIC */
+#endif /* CONFIG_PPC_PSERIES */
+
+	/*
+	 * MAGIC: the spinlock functions in arch/powerpc/lib/locks.c 
+	 * load lock_token and paca_index with a single lwz
+	 * instruction.  They must travel together and be properly
+	 * aligned.
+	 */
+#ifdef __BIG_ENDIAN__
+	u16 lock_token;			/* Constant 0x8000, used in locks */
+	u16 paca_index;			/* Logical processor number */
+#else
+	u16 paca_index;			/* Logical processor number */
+	u16 lock_token;			/* Constant 0x8000, used in locks */
+#endif
+
+	u64 kernel_toc;			/* Kernel TOC address */
+	u64 kernelbase;			/* Base address of kernel */
+	u64 kernel_msr;			/* MSR while running in kernel */
+	void *emergency_sp;		/* pointer to emergency stack */
+	u64 data_offset;		/* per cpu data offset */
+	s16 hw_cpu_id;			/* Physical processor number */
+	u8 cpu_start;			/* At startup, processor spins until */
+					/* this becomes non-zero. */
+	u8 kexec_state;		/* set when kexec down has irqs off */
+#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_PPC_64S_HASH_MMU
+	struct slb_shadow *slb_shadow_ptr;
+#endif
+	struct dtl_entry *dispatch_log;
+	struct dtl_entry *dispatch_log_end;
+#endif
+	u64 dscr_default;		/* per-CPU default DSCR */
+
+#ifdef CONFIG_PPC_BOOK3S_64
+	/*
+	 * Now, starting in cacheline 2, the exception save areas
+	 */
+	/* used for most interrupts/exceptions */
+	u64 exgen[EX_SIZE] __attribute__((aligned(0x80)));
+
+#ifdef CONFIG_PPC_64S_HASH_MMU
+	/* SLB related definitions */
+	u16 vmalloc_sllp;
+	u8 slb_cache_ptr;
+	u8 stab_rr;			/* stab/slb round-robin counter */
+#ifdef CONFIG_DEBUG_VM
+	u8 in_kernel_slb_handler;
+#endif
+	u32 slb_used_bitmap;		/* Bitmaps for first 32 SLB entries. */
+	u32 slb_kern_bitmap;
+	u32 slb_cache[SLB_CACHE_ENTRIES];
+#endif
+#endif /* CONFIG_PPC_BOOK3S_64 */
+
+#ifdef CONFIG_PPC_BOOK3E_64
+	u64 exgen[8] __aligned(0x40);
+	/* Keep pgd in the same cacheline as the start of extlb */
+	pgd_t *pgd __aligned(0x40); /* Current PGD */
+	pgd_t *kernel_pgd;		/* Kernel PGD */
+
+	/* Shared by all threads of a core -- points to tcd of first thread */
+	struct tlb_core_data *tcd_ptr;
+
+	/*
+	 * We can have up to 3 levels of reentrancy in the TLB miss handler,
+	 * in each of four exception levels (normal, crit, mcheck, debug).
+	 */
+	u64 extlb[12][EX_TLB_SIZE / sizeof(u64)];
+	u64 exmc[8];		/* used for machine checks */
+	u64 excrit[8];		/* used for crit interrupts */
+	u64 exdbg[8];		/* used for debug interrupts */
+
+	/* Kernel stack pointers for use by special exceptions */
+	void *mc_kstack;
+	void *crit_kstack;
+	void *dbg_kstack;
+
+	struct tlb_core_data tcd;
+#endif /* CONFIG_PPC_BOOK3E_64 */
+
+#ifdef CONFIG_PPC_64S_HASH_MMU
+	unsigned char mm_ctx_low_slices_psize[BITS_PER_LONG / BITS_PER_BYTE];
+	unsigned char mm_ctx_high_slices_psize[SLICE_ARRAY_SIZE];
+#endif
+
+	/*
+	 * then miscellaneous read-write fields
+	 */
+	struct task_struct *__current;	/* Pointer to current */
+	u64 kstack;			/* Saved Kernel stack addr */
+	u64 saved_r1;			/* r1 save for RTAS calls or PM or EE=0 */
+	u64 saved_msr;			/* MSR saved here by enter_rtas */
+#ifdef CONFIG_PPC64
+	u64 exit_save_r1;		/* Syscall/interrupt R1 save */
+#endif
+#ifdef CONFIG_PPC_BOOK3E_64
+	u16 trap_save;			/* Used when bad stack is encountered */
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+	u8 hsrr_valid;			/* HSRRs set for HRFID */
+	u8 srr_valid;			/* SRRs set for RFID */
+#endif
+	u8 irq_soft_mask;		/* mask for irq soft masking */
+	u8 irq_happened;		/* irq happened while soft-disabled */
+	u8 irq_work_pending;		/* IRQ_WORK interrupt while soft-disable */
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	u8 pmcregs_in_use;		/* pseries puts this in lppaca */
+#endif
+	u64 sprg_vdso;			/* Saved user-visible sprg */
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	u64 tm_scratch;                 /* TM scratch area for reclaim */
+#endif
+
+#ifdef CONFIG_PPC_POWERNV
+	/* PowerNV idle fields */
+	/* PNV_CORE_IDLE_* bits, all siblings work on thread 0 paca */
+	unsigned long idle_state;
+	union {
+		/* P7/P8 specific fields */
+		struct {
+			/* PNV_THREAD_RUNNING/NAP/SLEEP	*/
+			u8 thread_idle_state;
+			/* Mask to denote subcore sibling threads */
+			u8 subcore_sibling_mask;
+		};
+
+		/* P9 specific fields */
+		struct {
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+			/* The PSSCR value that the kernel requested before going to stop */
+			u64 requested_psscr;
+			/* Flag to request this thread not to stop */
+			atomic_t dont_stop;
+#endif
+		};
+	};
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+	/* Non-maskable exceptions that are not performance critical */
+	u64 exnmi[EX_SIZE];	/* used for system reset (nmi) */
+	u64 exmc[EX_SIZE];	/* used for machine checks */
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+	/* Exclusive stacks for system reset and machine check exception. */
+	void *nmi_emergency_sp;
+	void *mc_emergency_sp;
+
+	u16 in_nmi;			/* In nmi handler */
+
+	/*
+	 * Flag to check whether we are in machine check early handler
+	 * and already using emergency stack.
+	 */
+	u16 in_mce;
+	u8 hmi_event_available;		/* HMI event is available */
+	u8 hmi_p9_special_emu;		/* HMI P9 special emulation */
+	u32 hmi_irqs;			/* HMI irq stat */
+#endif
+	u8 ftrace_enabled;		/* Hard disable ftrace */
+
+	/* Stuff for accurate time accounting */
+	struct cpu_accounting_data accounting;
+	u64 dtl_ridx;			/* read index in dispatch log */
+	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */
+
+#ifdef CONFIG_KVM_BOOK3S_HANDLER
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
+	/* We use this to store guest state in */
+	struct kvmppc_book3s_shadow_vcpu shadow_vcpu;
+#endif
+	struct kvmppc_host_state kvm_hstate;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	/*
+	 * Bitmap for sibling subcore status. See kvm/book3s_hv_ras.c for
+	 * more details
+	 */
+	struct sibling_subcore_state *sibling_subcore_state;
+#endif
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+	/*
+	 * rfi fallback flush must be in its own cacheline to prevent
+	 * other paca data leaking into the L1d
+	 */
+	u64 exrfi[EX_SIZE] __aligned(0x80);
+	void *rfi_flush_fallback_area;
+	u64 l1d_flush_size;
+#endif
+#ifdef CONFIG_PPC_PSERIES
+	u8 *mce_data_buf;		/* buffer to hold per cpu rtas errlog */
+#endif /* CONFIG_PPC_PSERIES */
+
+#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_PPC_64S_HASH_MMU
+	/* Capture SLB related old contents in MCE handler. */
+	struct slb_entry *mce_faulty_slbs;
+	u16 slb_save_cache_ptr;
+#endif
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_STACKPROTECTOR
+	unsigned long canary;
+#endif
+#ifdef CONFIG_MMIOWB
+	struct mmiowb_state mmiowb_state;
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+	struct mce_info *mce_info;
+	u8 mce_pending_irq_work;
+#endif /* CONFIG_PPC_BOOK3S_64 */
+} ____cacheline_aligned;
+
+extern void copy_mm_to_paca(struct mm_struct *mm);
+extern struct paca_struct **paca_ptrs;
+extern void initialise_paca(struct paca_struct *new_paca, int cpu);
+extern void setup_paca(struct paca_struct *new_paca);
+extern void allocate_paca_ptrs(void);
+extern void allocate_paca(int cpu);
+extern void free_unused_pacas(void);
+
+#else /* CONFIG_PPC64 */
+
+static inline void allocate_paca_ptrs(void) { }
+static inline void allocate_paca(int cpu) { }
+static inline void free_unused_pacas(void) { }
+
+#endif /* CONFIG_PPC64 */
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_PACA_H */