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, 360 insertions, 0 deletions

diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
new file mode 100644
index 000000000..3aef78ceb
--- /dev/null
+++ b/arch/sh/mm/cache.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch/sh/mm/cache.c
+ *
+ * Copyright (C) 1999, 2000, 2002  Niibe Yutaka
+ * Copyright (C) 2002 - 2010  Paul Mundt
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/highmem.h>
+#include <linux/module.h>
+#include <asm/mmu_context.h>
+#include <asm/cacheflush.h>
+
+void (*local_flush_cache_all)(void *args) = cache_noop;
+void (*local_flush_cache_mm)(void *args) = cache_noop;
+void (*local_flush_cache_dup_mm)(void *args) = cache_noop;
+void (*local_flush_cache_page)(void *args) = cache_noop;
+void (*local_flush_cache_range)(void *args) = cache_noop;
+void (*local_flush_dcache_page)(void *args) = cache_noop;
+void (*local_flush_icache_range)(void *args) = cache_noop;
+void (*local_flush_icache_page)(void *args) = cache_noop;
+void (*local_flush_cache_sigtramp)(void *args) = cache_noop;
+
+void (*__flush_wback_region)(void *start, int size);
+EXPORT_SYMBOL(__flush_wback_region);
+void (*__flush_purge_region)(void *start, int size);
+EXPORT_SYMBOL(__flush_purge_region);
+void (*__flush_invalidate_region)(void *start, int size);
+EXPORT_SYMBOL(__flush_invalidate_region);
+
+static inline void noop__flush_region(void *start, int size)
+{
+}
+
+static inline void cacheop_on_each_cpu(void (*func) (void *info), void *info,
+                                   int wait)
+{
+	preempt_disable();
+
+	/* Needing IPI for cross-core flush is SHX3-specific. */
+#ifdef CONFIG_CPU_SHX3
+	/*
+	 * It's possible that this gets called early on when IRQs are
+	 * still disabled due to ioremapping by the boot CPU, so don't
+	 * even attempt IPIs unless there are other CPUs online.
+	 */
+	if (num_online_cpus() > 1)
+		smp_call_function(func, info, wait);
+#endif
+
+	func(info);
+
+	preempt_enable();
+}
+
+void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+		       unsigned long vaddr, void *dst, const void *src,
+		       unsigned long len)
+{
+	if (boot_cpu_data.dcache.n_aliases && page_mapcount(page) &&
+	    test_bit(PG_dcache_clean, &page->flags)) {
+		void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
+		memcpy(vto, src, len);
+		kunmap_coherent(vto);
+	} else {
+		memcpy(dst, src, len);
+		if (boot_cpu_data.dcache.n_aliases)
+			clear_bit(PG_dcache_clean, &page->flags);
+	}
+
+	if (vma->vm_flags & VM_EXEC)
+		flush_cache_page(vma, vaddr, page_to_pfn(page));
+}
+
+void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
+			 unsigned long vaddr, void *dst, const void *src,
+			 unsigned long len)
+{
+	if (boot_cpu_data.dcache.n_aliases && page_mapcount(page) &&
+	    test_bit(PG_dcache_clean, &page->flags)) {
+		void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
+		memcpy(dst, vfrom, len);
+		kunmap_coherent(vfrom);
+	} else {
+		memcpy(dst, src, len);
+		if (boot_cpu_data.dcache.n_aliases)
+			clear_bit(PG_dcache_clean, &page->flags);
+	}
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+			unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+
+	vto = kmap_atomic(to);
+
+	if (boot_cpu_data.dcache.n_aliases && page_mapcount(from) &&
+	    test_bit(PG_dcache_clean, &from->flags)) {
+		vfrom = kmap_coherent(from, vaddr);
+		copy_page(vto, vfrom);
+		kunmap_coherent(vfrom);
+	} else {
+		vfrom = kmap_atomic(from);
+		copy_page(vto, vfrom);
+		kunmap_atomic(vfrom);
+	}
+
+	if (pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK) ||
+	    (vma->vm_flags & VM_EXEC))
+		__flush_purge_region(vto, PAGE_SIZE);
+
+	kunmap_atomic(vto);
+	/* Make sure this page is cleared on other CPU's too before using it */
+	smp_wmb();
+}
+EXPORT_SYMBOL(copy_user_highpage);
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *kaddr = kmap_atomic(page);
+
+	clear_page(kaddr);
+
+	if (pages_do_alias((unsigned long)kaddr, vaddr & PAGE_MASK))
+		__flush_purge_region(kaddr, PAGE_SIZE);
+
+	kunmap_atomic(kaddr);
+}
+EXPORT_SYMBOL(clear_user_highpage);
+
+void __update_cache(struct vm_area_struct *vma,
+		    unsigned long address, pte_t pte)
+{
+	struct page *page;
+	unsigned long pfn = pte_pfn(pte);
+
+	if (!boot_cpu_data.dcache.n_aliases)
+		return;
+
+	page = pfn_to_page(pfn);
+	if (pfn_valid(pfn)) {
+		int dirty = !test_and_set_bit(PG_dcache_clean, &page->flags);
+		if (dirty)
+			__flush_purge_region(page_address(page), PAGE_SIZE);
+	}
+}
+
+void __flush_anon_page(struct page *page, unsigned long vmaddr)
+{
+	unsigned long addr = (unsigned long) page_address(page);
+
+	if (pages_do_alias(addr, vmaddr)) {
+		if (boot_cpu_data.dcache.n_aliases && page_mapcount(page) &&
+		    test_bit(PG_dcache_clean, &page->flags)) {
+			void *kaddr;
+
+			kaddr = kmap_coherent(page, vmaddr);
+			/* XXX.. For now kunmap_coherent() does a purge */
+			/* __flush_purge_region((void *)kaddr, PAGE_SIZE); */
+			kunmap_coherent(kaddr);
+		} else
+			__flush_purge_region((void *)addr, PAGE_SIZE);
+	}
+}
+
+void flush_cache_all(void)
+{
+	cacheop_on_each_cpu(local_flush_cache_all, NULL, 1);
+}
+EXPORT_SYMBOL(flush_cache_all);
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	if (boot_cpu_data.dcache.n_aliases == 0)
+		return;
+
+	cacheop_on_each_cpu(local_flush_cache_mm, mm, 1);
+}
+
+void flush_cache_dup_mm(struct mm_struct *mm)
+{
+	if (boot_cpu_data.dcache.n_aliases == 0)
+		return;
+
+	cacheop_on_each_cpu(local_flush_cache_dup_mm, mm, 1);
+}
+
+void flush_cache_page(struct vm_area_struct *vma, unsigned long addr,
+		      unsigned long pfn)
+{
+	struct flusher_data data;
+
+	data.vma = vma;
+	data.addr1 = addr;
+	data.addr2 = pfn;
+
+	cacheop_on_each_cpu(local_flush_cache_page, (void *)&data, 1);
+}
+
+void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
+		       unsigned long end)
+{
+	struct flusher_data data;
+
+	data.vma = vma;
+	data.addr1 = start;
+	data.addr2 = end;
+
+	cacheop_on_each_cpu(local_flush_cache_range, (void *)&data, 1);
+}
+EXPORT_SYMBOL(flush_cache_range);
+
+void flush_dcache_page(struct page *page)
+{
+	cacheop_on_each_cpu(local_flush_dcache_page, page, 1);
+}
+EXPORT_SYMBOL(flush_dcache_page);
+
+void flush_icache_range(unsigned long start, unsigned long end)
+{
+	struct flusher_data data;
+
+	data.vma = NULL;
+	data.addr1 = start;
+	data.addr2 = end;
+
+	cacheop_on_each_cpu(local_flush_icache_range, (void *)&data, 1);
+}
+EXPORT_SYMBOL(flush_icache_range);
+
+void flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+	/* Nothing uses the VMA, so just pass the struct page along */
+	cacheop_on_each_cpu(local_flush_icache_page, page, 1);
+}
+
+void flush_cache_sigtramp(unsigned long address)
+{
+	cacheop_on_each_cpu(local_flush_cache_sigtramp, (void *)address, 1);
+}
+
+static void compute_alias(struct cache_info *c)
+{
+#ifdef CONFIG_MMU
+	c->alias_mask = ((c->sets - 1) << c->entry_shift) & ~(PAGE_SIZE - 1);
+#else
+	c->alias_mask = 0;
+#endif
+	c->n_aliases = c->alias_mask ? (c->alias_mask >> PAGE_SHIFT) + 1 : 0;
+}
+
+static void __init emit_cache_params(void)
+{
+	printk(KERN_NOTICE "I-cache : n_ways=%d n_sets=%d way_incr=%d\n",
+		boot_cpu_data.icache.ways,
+		boot_cpu_data.icache.sets,
+		boot_cpu_data.icache.way_incr);
+	printk(KERN_NOTICE "I-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n",
+		boot_cpu_data.icache.entry_mask,
+		boot_cpu_data.icache.alias_mask,
+		boot_cpu_data.icache.n_aliases);
+	printk(KERN_NOTICE "D-cache : n_ways=%d n_sets=%d way_incr=%d\n",
+		boot_cpu_data.dcache.ways,
+		boot_cpu_data.dcache.sets,
+		boot_cpu_data.dcache.way_incr);
+	printk(KERN_NOTICE "D-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n",
+		boot_cpu_data.dcache.entry_mask,
+		boot_cpu_data.dcache.alias_mask,
+		boot_cpu_data.dcache.n_aliases);
+
+	/*
+	 * Emit Secondary Cache parameters if the CPU has a probed L2.
+	 */
+	if (boot_cpu_data.flags & CPU_HAS_L2_CACHE) {
+		printk(KERN_NOTICE "S-cache : n_ways=%d n_sets=%d way_incr=%d\n",
+			boot_cpu_data.scache.ways,
+			boot_cpu_data.scache.sets,
+			boot_cpu_data.scache.way_incr);
+		printk(KERN_NOTICE "S-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n",
+			boot_cpu_data.scache.entry_mask,
+			boot_cpu_data.scache.alias_mask,
+			boot_cpu_data.scache.n_aliases);
+	}
+}
+
+void __init cpu_cache_init(void)
+{
+	unsigned int cache_disabled = 0;
+
+#ifdef SH_CCR
+	cache_disabled = !(__raw_readl(SH_CCR) & CCR_CACHE_ENABLE);
+#endif
+
+	compute_alias(&boot_cpu_data.icache);
+	compute_alias(&boot_cpu_data.dcache);
+	compute_alias(&boot_cpu_data.scache);
+
+	__flush_wback_region		= noop__flush_region;
+	__flush_purge_region		= noop__flush_region;
+	__flush_invalidate_region	= noop__flush_region;
+
+	/*
+	 * No flushing is necessary in the disabled cache case so we can
+	 * just keep the noop functions in local_flush_..() and __flush_..()
+	 */
+	if (unlikely(cache_disabled))
+		goto skip;
+
+	if (boot_cpu_data.type == CPU_J2) {
+		extern void __weak j2_cache_init(void);
+
+		j2_cache_init();
+	} else if (boot_cpu_data.family == CPU_FAMILY_SH2) {
+		extern void __weak sh2_cache_init(void);
+
+		sh2_cache_init();
+	}
+
+	if (boot_cpu_data.family == CPU_FAMILY_SH2A) {
+		extern void __weak sh2a_cache_init(void);
+
+		sh2a_cache_init();
+	}
+
+	if (boot_cpu_data.family == CPU_FAMILY_SH3) {
+		extern void __weak sh3_cache_init(void);
+
+		sh3_cache_init();
+
+		if ((boot_cpu_data.type == CPU_SH7705) &&
+		    (boot_cpu_data.dcache.sets == 512)) {
+			extern void __weak sh7705_cache_init(void);
+
+			sh7705_cache_init();
+		}
+	}
+
+	if ((boot_cpu_data.family == CPU_FAMILY_SH4) ||
+	    (boot_cpu_data.family == CPU_FAMILY_SH4A) ||
+	    (boot_cpu_data.family == CPU_FAMILY_SH4AL_DSP)) {
+		extern void __weak sh4_cache_init(void);
+
+		sh4_cache_init();
+
+		if ((boot_cpu_data.type == CPU_SH7786) ||
+		    (boot_cpu_data.type == CPU_SHX3)) {
+			extern void __weak shx3_cache_init(void);
+
+			shx3_cache_init();
+		}
+	}
+
+skip:
+	emit_cache_params();
+}