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, 186 insertions, 0 deletions

diff --git a/scripts/export_report.pl b/scripts/export_report.pl
new file mode 100755
index 000000000..feb3d5542
--- /dev/null
+++ b/scripts/export_report.pl
@@ -0,0 +1,186 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# (C) Copyright IBM Corporation 2006.
+#	Author : Ram Pai (linuxram@us.ibm.com)
+#
+# Usage: export_report.pl -k Module.symvers [-o report_file ] -f *.mod.c
+#
+
+use warnings;
+use Getopt::Std;
+use strict;
+
+sub numerically {
+	my $no1 = (split /\s+/, $a)[1];
+	my $no2 = (split /\s+/, $b)[1];
+	return $no1 <=> $no2;
+}
+
+sub alphabetically {
+	my ($module1, $value1) = @{$a};
+	my ($module2, $value2) = @{$b};
+	return $value1 <=> $value2 || $module2 cmp $module1;
+}
+
+sub print_depends_on {
+	my ($href) = @_;
+	print "\n";
+	for my $mod (sort keys %$href) {
+		my $list = $href->{$mod};
+		print "\t$mod:\n";
+		foreach my $sym (sort numerically @{$list}) {
+			my ($symbol, $no) = split /\s+/, $sym;
+			printf("\t\t%-25s\n", $symbol);
+		}
+		print "\n";
+	}
+	print "\n";
+	print "~"x80 , "\n";
+}
+
+sub usage {
+        print "Usage: @_ -h -k Module.symvers  [ -o outputfile ] \n",
+	      "\t-f: treat all the non-option argument as .mod.c files. ",
+	      "Recommend using this as the last option\n",
+	      "\t-h: print detailed help\n",
+	      "\t-k: the path to Module.symvers file. By default uses ",
+	      "the file from the current directory\n",
+	      "\t-o outputfile: output the report to outputfile\n";
+	exit 0;
+}
+
+sub collectcfiles {
+    my @file;
+    open my $fh, '< modules.order' or die "cannot open modules.order: $!\n";
+    while (<$fh>) {
+	s/\.ko$/.mod.c/;
+	push (@file, $_)
+    }
+    close($fh);
+    chomp @file;
+    return @file;
+}
+
+my (%SYMBOL, %MODULE, %opt, @allcfiles);
+
+if (not getopts('hk:o:f',\%opt) or defined $opt{'h'}) {
+        usage($0);
+}
+
+if (defined $opt{'f'}) {
+	@allcfiles = @ARGV;
+} else {
+	@allcfiles = collectcfiles();
+}
+
+if (not defined $opt{'k'}) {
+	$opt{'k'} = "Module.symvers";
+}
+
+open (my $module_symvers, '<', $opt{'k'})
+    or die "Sorry, cannot open $opt{'k'}: $!\n";
+
+if (defined $opt{'o'}) {
+    open (my $out, '>', $opt{'o'})
+	or die "Sorry, cannot open $opt{'o'} $!\n";
+
+    select $out;
+}
+
+#
+# collect all the symbols and their attributes from the
+# Module.symvers file
+#
+while ( <$module_symvers> ) {
+	chomp;
+	my (undef, $symbol, $module, $gpl, $namespace) = split('\t');
+	$SYMBOL { $symbol } =  [ $module , "0" , $symbol, $gpl];
+}
+close($module_symvers);
+
+#
+# collect the usage count of each symbol.
+#
+my $modversion_warnings = 0;
+
+foreach my $thismod (@allcfiles) {
+	my $module;
+
+	unless (open ($module, '<', $thismod)) {
+		warn "Sorry, cannot open $thismod: $!\n";
+		next;
+	}
+
+	my $state=0;
+	while ( <$module> ) {
+		chomp;
+		if ($state == 0) {
+			$state = 1 if ($_ =~ /static const struct modversion_info/);
+			next;
+		}
+		if ($state == 1) {
+			$state = 2 if ($_ =~ /__attribute__\(\(section\("__versions"\)\)\)/);
+			next;
+		}
+		if ($state == 2) {
+			if ( $_ !~ /0x[0-9a-f]+,/ ) {
+				next;
+			}
+			my $sym = (split /([,"])/,)[4];
+			my ($module, $value, $symbol, $gpl) = @{$SYMBOL{$sym}};
+			$SYMBOL{ $sym } =  [ $module, $value+1, $symbol, $gpl];
+			push(@{$MODULE{$thismod}} , $sym);
+		}
+	}
+	if ($state != 2) {
+		warn "WARNING:$thismod is not built with CONFIG_MODVERSIONS enabled\n";
+		$modversion_warnings++;
+	}
+	close($module);
+}
+
+print "\tThis file reports the exported symbols usage patterns by in-tree\n",
+	"\t\t\t\tmodules\n";
+printf("%s\n\n\n","x"x80);
+printf("\t\t\t\tINDEX\n\n\n");
+printf("SECTION 1: Usage counts of all exported symbols\n");
+printf("SECTION 2: List of modules and the exported symbols they use\n");
+printf("%s\n\n\n","x"x80);
+printf("SECTION 1:\tThe exported symbols and their usage count\n\n");
+printf("%-25s\t%-25s\t%-5s\t%-25s\n", "Symbol", "Module", "Usage count",
+	"export type");
+
+#
+# print the list of unused exported symbols
+#
+foreach my $list (sort alphabetically values(%SYMBOL)) {
+	my ($module, $value, $symbol, $gpl) = @{$list};
+	printf("%-25s\t%-25s\t%-10s\t", $symbol, $module, $value);
+	if (defined $gpl) {
+		printf("%-25s\n",$gpl);
+	} else {
+		printf("\n");
+	}
+}
+printf("%s\n\n\n","x"x80);
+
+printf("SECTION 2:\n\tThis section reports export-symbol-usage of in-kernel
+modules. Each module lists the modules, and the symbols from that module that
+it uses.  Each listed symbol reports the number of modules using it\n");
+
+print "\nNOTE: Got $modversion_warnings CONFIG_MODVERSIONS warnings\n\n"
+    if $modversion_warnings;
+
+print "~"x80 , "\n";
+for my $thismod (sort keys %MODULE) {
+	my $list = $MODULE{$thismod};
+	my %depends;
+	$thismod =~ s/\.mod\.c/.ko/;
+	print "\t\t\t$thismod\n";
+	foreach my $symbol (@{$list}) {
+		my ($module, $value, undef, $gpl) = @{$SYMBOL{$symbol}};
+		push (@{$depends{"$module"}}, "$symbol $value");
+	}
+	print_depends_on(\%depends);
+}