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, 261 insertions, 0 deletions

diff --git a/tools/testing/selftests/net/forwarding/no_forwarding.sh b/tools/testing/selftests/net/forwarding/no_forwarding.sh
new file mode 100755
index 000000000..af3b398d1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/no_forwarding.sh
@@ -0,0 +1,261 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="standalone two_bridges one_bridge_two_pvids"
+NUM_NETIFS=4
+
+source lib.sh
+
+h1=${NETIFS[p1]}
+h2=${NETIFS[p3]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p4]}
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+IPV4_ALLNODES="224.0.0.1"
+IPV6_ALLNODES="ff02::1"
+MACV4_ALLNODES="01:00:5e:00:00:01"
+MACV6_ALLNODES="33:33:00:00:00:01"
+NON_IP_MC="01:02:03:04:05:06"
+NON_IP_PKT="00:04 48:45:4c:4f"
+BC="ff:ff:ff:ff:ff:ff"
+
+# The full 4K VLAN space is too much to check, so strategically pick some
+# values which should provide reasonable coverage
+vids=(0 1 2 5 10 20 50 100 200 500 1000 1000 2000 4000 4094)
+
+send_non_ip()
+{
+	local if_name=$1
+	local smac=$2
+	local dmac=$3
+
+	$MZ -q $if_name "$dmac $smac $NON_IP_PKT"
+}
+
+send_uc_ipv4()
+{
+	local if_name=$1
+	local dmac=$2
+
+	ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
+	ping_do $if_name $H2_IPV4
+	ip neigh del $H2_IPV4 dev $if_name
+}
+
+send_mc_ipv4()
+{
+	local if_name=$1
+
+	ping_do $if_name $IPV4_ALLNODES "-I $if_name"
+}
+
+send_uc_ipv6()
+{
+	local if_name=$1
+	local dmac=$2
+
+	ip -6 neigh add $H2_IPV6 lladdr $dmac dev $if_name
+	ping6_do $if_name $H2_IPV6
+	ip -6 neigh del $H2_IPV6 dev $if_name
+}
+
+send_mc_ipv6()
+{
+	local if_name=$1
+
+	ping6_do $if_name $IPV6_ALLNODES%$if_name
+}
+
+check_rcv()
+{
+	local if_name=$1
+	local type=$2
+	local pattern=$3
+	local should_fail=1
+
+	RET=0
+
+	tcpdump_show $if_name | grep -q "$pattern"
+
+	check_err_fail "$should_fail" "$?" "reception"
+
+	log_test "$type"
+}
+
+run_test()
+{
+	local test_name="$1"
+	local smac=$(mac_get $h1)
+	local dmac=$(mac_get $h2)
+	local h1_ipv6_lladdr=$(ipv6_lladdr_get $h1)
+	local vid=
+
+	echo "$test_name: Sending packets"
+
+	tcpdump_start $h2
+
+	send_non_ip $h1 $smac $dmac
+	send_non_ip $h1 $smac $NON_IP_MC
+	send_non_ip $h1 $smac $BC
+	send_uc_ipv4 $h1 $dmac
+	send_mc_ipv4 $h1
+	send_uc_ipv6 $h1 $dmac
+	send_mc_ipv6 $h1
+
+	for vid in "${vids[@]}"; do
+		vlan_create $h1 $vid
+		simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+
+		send_non_ip $h1.$vid $smac $dmac
+		send_non_ip $h1.$vid $smac $NON_IP_MC
+		send_non_ip $h1.$vid $smac $BC
+		send_uc_ipv4 $h1.$vid $dmac
+		send_mc_ipv4 $h1.$vid
+		send_uc_ipv6 $h1.$vid $dmac
+		send_mc_ipv6 $h1.$vid
+
+		simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+		vlan_destroy $h1 $vid
+	done
+
+	sleep 1
+
+	echo "$test_name: Checking which packets were received"
+
+	tcpdump_stop $h2
+
+	check_rcv $h2 "$test_name: Unicast non-IP untagged" \
+		"$smac > $dmac, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Multicast non-IP untagged" \
+		"$smac > $NON_IP_MC, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Broadcast non-IP untagged" \
+		"$smac > $BC, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Unicast IPv4 untagged" \
+		"$smac > $dmac, ethertype IPv4 (0x0800)"
+
+	check_rcv $h2 "$test_name: Multicast IPv4 untagged" \
+		"$smac > $MACV4_ALLNODES, ethertype IPv4 (0x0800).*: $H1_IPV4 > $IPV4_ALLNODES"
+
+	check_rcv $h2 "$test_name: Unicast IPv6 untagged" \
+		"$smac > $dmac, ethertype IPv6 (0x86dd).*8: $H1_IPV6 > $H2_IPV6"
+
+	check_rcv $h2 "$test_name: Multicast IPv6 untagged" \
+		"$smac > $MACV6_ALLNODES, ethertype IPv6 (0x86dd).*: $h1_ipv6_lladdr > $IPV6_ALLNODES"
+
+	for vid in "${vids[@]}"; do
+		check_rcv $h2 "$test_name: Unicast non-IP VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Multicast non-IP VID $vid" \
+			"$smac > $NON_IP_MC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Broadcast non-IP VID $vid" \
+			"$smac > $BC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Unicast IPv4 VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $H2_IPV4"
+
+		check_rcv $h2 "$test_name: Multicast IPv4 VID $vid" \
+			"$smac > $MACV4_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $IPV4_ALLNODES"
+
+		check_rcv $h2 "$test_name: Unicast IPv6 VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $H1_IPV6 > $H2_IPV6"
+
+		check_rcv $h2 "$test_name: Multicast IPv6 VID $vid" \
+			"$smac > $MACV6_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $h1_ipv6_lladdr > $IPV6_ALLNODES"
+	done
+
+	tcpdump_cleanup $h2
+}
+
+standalone()
+{
+	run_test "Standalone switch ports"
+}
+
+two_bridges()
+{
+	ip link add br0 type bridge && ip link set br0 up
+	ip link add br1 type bridge && ip link set br1 up
+	ip link set $swp1 master br0
+	ip link set $swp2 master br1
+
+	run_test "Switch ports in different bridges"
+
+	ip link del br1
+	ip link del br0
+}
+
+one_bridge_two_pvids()
+{
+	ip link add br0 type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set br0 up
+	ip link set $swp1 master br0
+	ip link set $swp2 master br0
+
+	bridge vlan add dev $swp1 vid 1 pvid untagged
+	bridge vlan add dev $swp1 vid 2 pvid untagged
+
+	run_test "Switch ports in VLAN-aware bridge with different PVIDs"
+
+	ip link del br0
+}
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	# we call simple_if_init from the test itself, but setup_wait expects
+	# that we call it from here, and waits until the interfaces are up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS