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, 429 insertions, 0 deletions

diff --git a/tools/testing/selftests/net/vrf_strict_mode_test.sh b/tools/testing/selftests/net/vrf_strict_mode_test.sh
new file mode 100755
index 000000000..417d21426
--- /dev/null
+++ b/tools/testing/selftests/net/vrf_strict_mode_test.sh
@@ -0,0 +1,429 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is designed for testing the new VRF strict_mode functionality.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+ret=0
+
+# identifies the "init" network namespace which is often called root network
+# namespace.
+INIT_NETNS_NAME="init"
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+TESTS="init testns mix"
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+ip_expand_args()
+{
+	local nsname=$1
+	local nsarg=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		nsarg="-netns ${nsname}"
+	fi
+
+	echo "${nsarg}"
+}
+
+vrf_count()
+{
+	local nsname=$1
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} -o link show type vrf | wc -l
+}
+
+count_vrf_by_table_id()
+{
+	local nsname=$1
+	local tableid=$2
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} -d -o link show type vrf | grep "table ${tableid}" | wc -l
+}
+
+add_vrf()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link add ${vrfname} type vrf table ${vrftable} &>/dev/null
+}
+
+add_vrf_and_check()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local cnt
+	local rc
+
+	add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+	cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+	log_test ${rc} 0 "${nsname}: add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+add_vrf_and_check_fail()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local cnt
+	local rc
+
+	add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+	cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+	log_test ${rc} 2 "${nsname}: CANNOT add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+del_vrf_and_check()
+{
+	local nsname=$1
+	local vrfname=$2
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link del ${vrfname}
+	log_test $? 0 "${nsname}: remove vrf ${vrfname}"
+}
+
+config_vrf_and_check()
+{
+	local nsname=$1
+	local addr=$2
+	local vrfname=$3
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link set dev ${vrfname} up && \
+		ip ${nsarg} addr add ${addr} dev ${vrfname}
+	log_test $? 0 "${nsname}: vrf ${vrfname} up, addr ${addr}"
+}
+
+read_strict_mode()
+{
+	local nsname=$1
+	local rval
+	local rc=0
+	local nsexec=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		# a custom network namespace is provided
+		nsexec="ip netns exec ${nsname}"
+	fi
+
+	rval="$(${nsexec} bash -c "cat /proc/sys/net/vrf/strict_mode" | \
+		grep -E "^[0-1]$")" &> /dev/null
+	if [ $? -ne 0 ]; then
+		# set errors
+		rval=255
+		rc=1
+	fi
+
+	# on success, rval can be only 0 or 1; on error, rval is equal to 255
+	echo ${rval}
+	return ${rc}
+}
+
+read_strict_mode_compare_and_check()
+{
+	local nsname=$1
+	local expected=$2
+	local res
+
+	res="$(read_strict_mode ${nsname})"
+	log_test ${res} ${expected} "${nsname}: check strict_mode=${res}"
+}
+
+set_strict_mode()
+{
+	local nsname=$1
+	local val=$2
+	local nsexec=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		# a custom network namespace is provided
+		nsexec="ip netns exec ${nsname}"
+	fi
+
+	${nsexec} bash -c "echo ${val} >/proc/sys/net/vrf/strict_mode" &>/dev/null
+}
+
+enable_strict_mode()
+{
+	local nsname=$1
+
+	set_strict_mode ${nsname} 1
+}
+
+disable_strict_mode()
+{
+	local nsname=$1
+
+	set_strict_mode ${nsname} 0
+}
+
+disable_strict_mode_and_check()
+{
+	local nsname=$1
+
+	disable_strict_mode ${nsname}
+	log_test $? 0 "${nsname}: disable strict_mode (=0)"
+}
+
+enable_strict_mode_and_check()
+{
+	local nsname=$1
+
+	enable_strict_mode ${nsname}
+	log_test $? 0 "${nsname}: enable strict_mode (=1)"
+}
+
+enable_strict_mode_and_check_fail()
+{
+	local nsname=$1
+
+	enable_strict_mode ${nsname}
+	log_test $? 1 "${nsname}: CANNOT enable strict_mode"
+}
+
+strict_mode_check_default()
+{
+	local nsname=$1
+	local strictmode
+	local vrfcnt
+
+	vrfcnt=$(vrf_count ${nsname})
+	strictmode=$(read_strict_mode ${nsname})
+	log_test ${strictmode} 0 "${nsname}: strict_mode=0 by default, ${vrfcnt} vrfs"
+}
+
+setup()
+{
+	modprobe vrf
+
+	ip netns add testns
+	ip netns exec testns ip link set lo up
+}
+
+cleanup()
+{
+	ip netns del testns 2>/dev/null
+
+	ip link del vrf100 2>/dev/null
+	ip link del vrf101 2>/dev/null
+	ip link del vrf102 2>/dev/null
+
+	echo 0 >/proc/sys/net/vrf/strict_mode 2>/dev/null
+}
+
+vrf_strict_mode_tests_init()
+{
+	log_section "VRF strict_mode test on init network namespace"
+
+	vrf_strict_mode_check_support init
+
+	strict_mode_check_default init
+
+	add_vrf_and_check init vrf100 100
+	config_vrf_and_check init 172.16.100.1/24 vrf100
+
+	enable_strict_mode_and_check init
+
+	add_vrf_and_check_fail init vrf101 100
+
+	disable_strict_mode_and_check init
+
+	add_vrf_and_check init vrf101 100
+	config_vrf_and_check init 172.16.101.1/24 vrf101
+
+	enable_strict_mode_and_check_fail init
+
+	del_vrf_and_check init vrf101
+
+	enable_strict_mode_and_check init
+
+	add_vrf_and_check init vrf102 102
+	config_vrf_and_check init 172.16.102.1/24 vrf102
+
+	# the strict_modle is enabled in the init
+}
+
+vrf_strict_mode_tests_testns()
+{
+	log_section "VRF strict_mode test on testns network namespace"
+
+	vrf_strict_mode_check_support testns
+
+	strict_mode_check_default testns
+
+	enable_strict_mode_and_check testns
+
+	add_vrf_and_check testns vrf100 100
+	config_vrf_and_check testns 10.0.100.1/24 vrf100
+
+	add_vrf_and_check_fail testns vrf101 100
+
+	add_vrf_and_check_fail testns vrf102 100
+
+	add_vrf_and_check testns vrf200 200
+
+	disable_strict_mode_and_check testns
+
+	add_vrf_and_check testns vrf101 100
+
+	add_vrf_and_check testns vrf102 100
+
+	#the strict_mode is disabled in the testns
+}
+
+vrf_strict_mode_tests_mix()
+{
+	log_section "VRF strict_mode test mixing init and testns network namespaces"
+
+	read_strict_mode_compare_and_check init 1
+
+	read_strict_mode_compare_and_check testns 0
+
+	del_vrf_and_check testns vrf101
+
+	del_vrf_and_check testns vrf102
+
+	disable_strict_mode_and_check init
+
+	enable_strict_mode_and_check testns
+
+	enable_strict_mode_and_check init
+	enable_strict_mode_and_check init
+
+	disable_strict_mode_and_check testns
+	disable_strict_mode_and_check testns
+
+	read_strict_mode_compare_and_check init 1
+
+	read_strict_mode_compare_and_check testns 0
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+	-t <test>	Test(s) to run (default: all)
+			(options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+vrf_strict_mode_check_support()
+{
+	local nsname=$1
+	local output
+	local rc
+
+	output="$(lsmod | grep '^vrf' | awk '{print $1}')"
+	if [ -z "${output}" ]; then
+		modinfo vrf || return $?
+	fi
+
+	# we do not care about the value of the strict_mode; we only check if
+	# the strict_mode parameter is available or not.
+	read_strict_mode ${nsname} &>/dev/null; rc=$?
+	log_test ${rc} 0 "${nsname}: net.vrf.strict_mode is available"
+
+	return ${rc}
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+	echo "SKIP: vrf sysctl does not exist"
+	exit $ksft_skip
+fi
+
+cleanup &> /dev/null
+
+setup
+for t in $TESTS
+do
+	case $t in
+	vrf_strict_mode_tests_init|init) vrf_strict_mode_tests_init;;
+	vrf_strict_mode_tests_testns|testns) vrf_strict_mode_tests_testns;;
+	vrf_strict_mode_tests_mix|mix) vrf_strict_mode_tests_mix;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+
+	esac
+done
+cleanup
+
+print_log_test_results
+
+exit $ret