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, 320 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
new file mode 100644
index 000000000..8ed6ac14d
--- /dev/null
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -0,0 +1,320 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __M68K_MMU_CONTEXT_H
+#define __M68K_MMU_CONTEXT_H
+
+#include <asm-generic/mm_hooks.h>
+#include <linux/mm_types.h>
+
+#ifdef CONFIG_MMU
+
+#if defined(CONFIG_COLDFIRE)
+
+#include <asm/atomic.h>
+#include <asm/bitops.h>
+#include <asm/mcfmmu.h>
+#include <asm/mmu.h>
+
+#define NO_CONTEXT		256
+#define LAST_CONTEXT		255
+#define FIRST_CONTEXT		1
+
+extern unsigned long context_map[];
+extern mm_context_t next_mmu_context;
+
+extern atomic_t nr_free_contexts;
+extern struct mm_struct *context_mm[LAST_CONTEXT+1];
+extern void steal_context(void);
+
+static inline void get_mmu_context(struct mm_struct *mm)
+{
+	mm_context_t ctx;
+
+	if (mm->context != NO_CONTEXT)
+		return;
+	while (arch_atomic_dec_and_test_lt(&nr_free_contexts)) {
+		atomic_inc(&nr_free_contexts);
+		steal_context();
+	}
+	ctx = next_mmu_context;
+	while (test_and_set_bit(ctx, context_map)) {
+		ctx = find_next_zero_bit(context_map, LAST_CONTEXT+1, ctx);
+		if (ctx > LAST_CONTEXT)
+			ctx = 0;
+	}
+	next_mmu_context = (ctx + 1) & LAST_CONTEXT;
+	mm->context = ctx;
+	context_mm[ctx] = mm;
+}
+
+/*
+ * Set up the context for a new address space.
+ */
+#define init_new_context(tsk, mm)	(((mm)->context = NO_CONTEXT), 0)
+
+/*
+ * We're finished using the context for an address space.
+ */
+#define destroy_context destroy_context
+static inline void destroy_context(struct mm_struct *mm)
+{
+	if (mm->context != NO_CONTEXT) {
+		clear_bit(mm->context, context_map);
+		mm->context = NO_CONTEXT;
+		atomic_inc(&nr_free_contexts);
+	}
+}
+
+static inline void set_context(mm_context_t context, pgd_t *pgd)
+{
+	__asm__ __volatile__ ("movec %0,%%asid" : : "d" (context));
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+	struct task_struct *tsk)
+{
+	get_mmu_context(tsk->mm);
+	set_context(tsk->mm->context, next->pgd);
+}
+
+/*
+ * After we have set current->mm to a new value, this activates
+ * the context for the new mm so we see the new mappings.
+ */
+#define activate_mm activate_mm
+static inline void activate_mm(struct mm_struct *active_mm,
+	struct mm_struct *mm)
+{
+	get_mmu_context(mm);
+	set_context(mm->context, mm->pgd);
+}
+
+#define prepare_arch_switch(next) load_ksp_mmu(next)
+
+static inline void load_ksp_mmu(struct task_struct *task)
+{
+	unsigned long flags;
+	struct mm_struct *mm;
+	int asid;
+	pgd_t *pgd;
+	p4d_t *p4d;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	unsigned long mmuar;
+
+	local_irq_save(flags);
+	mmuar = task->thread.ksp;
+
+	/* Search for a valid TLB entry, if one is found, don't remap */
+	mmu_write(MMUAR, mmuar);
+	mmu_write(MMUOR, MMUOR_STLB | MMUOR_ADR);
+	if (mmu_read(MMUSR) & MMUSR_HIT)
+		goto end;
+
+	if (mmuar >= PAGE_OFFSET) {
+		mm = &init_mm;
+	} else {
+		pr_info("load_ksp_mmu: non-kernel mm found: 0x%p\n", task->mm);
+		mm = task->mm;
+	}
+
+	if (!mm)
+		goto bug;
+
+	pgd = pgd_offset(mm, mmuar);
+	if (pgd_none(*pgd))
+		goto bug;
+
+	p4d = p4d_offset(pgd, mmuar);
+	if (p4d_none(*p4d))
+		goto bug;
+
+	pud = pud_offset(p4d, mmuar);
+	if (pud_none(*pud))
+		goto bug;
+
+	pmd = pmd_offset(pud, mmuar);
+	if (pmd_none(*pmd))
+		goto bug;
+
+	pte = (mmuar >= PAGE_OFFSET) ? pte_offset_kernel(pmd, mmuar)
+				     : pte_offset_map(pmd, mmuar);
+	if (pte_none(*pte) || !pte_present(*pte))
+		goto bug;
+
+	set_pte(pte, pte_mkyoung(*pte));
+	asid = mm->context & 0xff;
+	if (!pte_dirty(*pte) && mmuar <= PAGE_OFFSET)
+		set_pte(pte, pte_wrprotect(*pte));
+
+	mmu_write(MMUTR, (mmuar & PAGE_MASK) | (asid << MMUTR_IDN) |
+		(((int)(pte->pte) & (int)CF_PAGE_MMUTR_MASK)
+		>> CF_PAGE_MMUTR_SHIFT) | MMUTR_V);
+
+	mmu_write(MMUDR, (pte_val(*pte) & PAGE_MASK) |
+		((pte->pte) & CF_PAGE_MMUDR_MASK) | MMUDR_SZ_8KB | MMUDR_X);
+
+	mmu_write(MMUOR, MMUOR_ACC | MMUOR_UAA);
+
+	goto end;
+
+bug:
+	pr_info("ksp load failed: mm=0x%p ksp=0x08%lx\n", mm, mmuar);
+end:
+	local_irq_restore(flags);
+}
+
+#elif defined(CONFIG_SUN3)
+#include <asm/sun3mmu.h>
+#include <linux/sched.h>
+
+extern unsigned long get_free_context(struct mm_struct *mm);
+extern void clear_context(unsigned long context);
+
+/* set the context for a new task to unmapped */
+#define init_new_context init_new_context
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	mm->context = SUN3_INVALID_CONTEXT;
+	return 0;
+}
+
+/* find the context given to this process, and if it hasn't already
+   got one, go get one for it. */
+static inline void get_mmu_context(struct mm_struct *mm)
+{
+	if (mm->context == SUN3_INVALID_CONTEXT)
+		mm->context = get_free_context(mm);
+}
+
+/* flush context if allocated... */
+#define destroy_context destroy_context
+static inline void destroy_context(struct mm_struct *mm)
+{
+	if (mm->context != SUN3_INVALID_CONTEXT)
+		clear_context(mm->context);
+}
+
+static inline void activate_context(struct mm_struct *mm)
+{
+	get_mmu_context(mm);
+	sun3_put_context(mm->context);
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+			     struct task_struct *tsk)
+{
+	activate_context(tsk->mm);
+}
+
+#define activate_mm activate_mm
+static inline void activate_mm(struct mm_struct *prev_mm,
+			       struct mm_struct *next_mm)
+{
+	activate_context(next_mm);
+}
+
+#else
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/cacheflush.h>
+
+#define init_new_context init_new_context
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	mm->context = virt_to_phys(mm->pgd);
+	return 0;
+}
+
+static inline void switch_mm_0230(struct mm_struct *mm)
+{
+	unsigned long crp[2] = {
+		0x80000000 | _PAGE_TABLE, mm->context
+	};
+	unsigned long tmp;
+
+	asm volatile (".chip 68030");
+
+	/* flush MC68030/MC68020 caches (they are virtually addressed) */
+	asm volatile (
+		"movec %%cacr,%0;"
+		"orw %1,%0; "
+		"movec %0,%%cacr"
+		: "=d" (tmp) : "di" (FLUSH_I_AND_D));
+
+	/* Switch the root pointer. For a 030-only kernel,
+	 * avoid flushing the whole ATC, we only need to
+	 * flush the user entries. The 68851 does this by
+	 * itself. Avoid a runtime check here.
+	 */
+	asm volatile (
+#ifdef CPU_M68030_ONLY
+		"pmovefd %0,%%crp; "
+		"pflush #0,#4"
+#else
+		"pmove %0,%%crp"
+#endif
+		: : "m" (crp[0]));
+
+	asm volatile (".chip 68k");
+}
+
+static inline void switch_mm_0460(struct mm_struct *mm)
+{
+	asm volatile (".chip 68040");
+
+	/* flush address translation cache (user entries) */
+	asm volatile ("pflushan");
+
+	/* switch the root pointer */
+	asm volatile ("movec %0,%%urp" : : "r" (mm->context));
+
+	if (CPU_IS_060) {
+		unsigned long tmp;
+
+		/* clear user entries in the branch cache */
+		asm volatile (
+			"movec %%cacr,%0; "
+		        "orl %1,%0; "
+		        "movec %0,%%cacr"
+			: "=d" (tmp): "di" (0x00200000));
+	}
+
+	asm volatile (".chip 68k");
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+{
+	if (prev != next) {
+		if (CPU_IS_020_OR_030)
+			switch_mm_0230(next);
+		else
+			switch_mm_0460(next);
+	}
+}
+
+#define activate_mm activate_mm
+static inline void activate_mm(struct mm_struct *prev_mm,
+			       struct mm_struct *next_mm)
+{
+	next_mm->context = virt_to_phys(next_mm->pgd);
+
+	if (CPU_IS_020_OR_030)
+		switch_mm_0230(next_mm);
+	else
+		switch_mm_0460(next_mm);
+}
+
+#endif
+
+#include <asm-generic/mmu_context.h>
+
+#else /* !CONFIG_MMU */
+
+#include <asm-generic/nommu_context.h>
+
+#endif /* CONFIG_MMU */
+#endif /* __M68K_MMU_CONTEXT_H */