From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- .../net/mlxsw/spectrum/vxlan_flooding_ipv6.sh | 334 +++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100755 tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh (limited to 'tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh') diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh new file mode 100755 index 000000000..d8fd875ad --- /dev/null +++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh @@ -0,0 +1,334 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Test VxLAN flooding. The device stores flood records in a singly linked list +# where each record stores up to five IPv6 addresses of remote VTEPs. The test +# verifies that packets are correctly flooded in various cases such as deletion +# of a record in the middle of the list. +# +# +-----------------------+ +# | H1 (vrf) | +# | + $h1 | +# | | 2001:db8:1::1/64 | +# +----|------------------+ +# | +# +----|----------------------------------------------------------------------+ +# | SW | | +# | +--|--------------------------------------------------------------------+ | +# | | + $swp1 BR0 (802.1d) | | +# | | | | +# | | + vxlan0 (vxlan) | | +# | | local 2001:db8:2::1 | | +# | | remote 2001:db8:2::{2..21} | | +# | | id 10 dstport 4789 | | +# | +-----------------------------------------------------------------------+ | +# | | +# | 2001:db8:2::0/64 via 2001:db8:3::2 | +# | | +# | + $rp1 | +# | | 2001:db8:3::1/64 | +# +----|----------------------------------------------------------------------+ +# | +# +----|--------------------------------------------------------+ +# | | R2 (vrf) | +# | + $rp2 | +# | 2001:db8:3::2/64 | +# | | +# +-------------------------------------------------------------+ + +lib_dir=$(dirname $0)/../../../../net/forwarding + +ALL_TESTS="flooding_test" +NUM_NETIFS=4 +source $lib_dir/tc_common.sh +source $lib_dir/lib.sh + +h1_create() +{ + simple_if_init $h1 2001:db8:1::1/64 +} + +h1_destroy() +{ + simple_if_fini $h1 2001:db8:1::1/64 +} + +switch_create() +{ + # Make sure the bridge uses the MAC address of the local port and + # not that of the VxLAN's device + ip link add dev br0 type bridge mcast_snooping 0 + ip link set dev br0 address $(mac_get $swp1) + + ip link add name vxlan0 type vxlan id 10 nolearning \ + udp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \ + local 2001:db8:2::1 dstport 4789 + + ip address add 2001:db8:2::1/128 dev lo + + ip link set dev $swp1 master br0 + ip link set dev vxlan0 master br0 + + ip link set dev br0 up + ip link set dev $swp1 up + ip link set dev vxlan0 up +} + +switch_destroy() +{ + ip link set dev vxlan0 down + ip link set dev $swp1 down + ip link set dev br0 down + + ip link set dev vxlan0 nomaster + ip link set dev $swp1 nomaster + + ip address del 2001:db8:2::1/128 dev lo + + ip link del dev vxlan0 + + ip link del dev br0 +} + +router1_create() +{ + # This router is in the default VRF, where the VxLAN device is + # performing the L3 lookup + ip link set dev $rp1 up + ip address add 2001:db8:3::1/64 dev $rp1 + ip route add 2001:db8:2::0/64 via 2001:db8:3::2 +} + +router1_destroy() +{ + ip route del 2001:db8:2::0/64 via 2001:db8:3::2 + ip address del 2001:db8:3::1/64 dev $rp1 + ip link set dev $rp1 down +} + +router2_create() +{ + # This router is not in the default VRF, so use simple_if_init() + simple_if_init $rp2 2001:db8:3::2/64 +} + +router2_destroy() +{ + simple_if_fini $rp2 2001:db8:3::2/64 +} + +setup_prepare() +{ + h1=${NETIFS[p1]} + swp1=${NETIFS[p2]} + + rp1=${NETIFS[p3]} + rp2=${NETIFS[p4]} + + vrf_prepare + + h1_create + + switch_create + + router1_create + router2_create + + forwarding_enable +} + +cleanup() +{ + pre_cleanup + + forwarding_restore + + router2_destroy + router1_destroy + + switch_destroy + + h1_destroy + + vrf_cleanup +} + +flooding_remotes_add() +{ + local num_remotes=$1 + local lsb + local i + + for i in $(eval echo {1..$num_remotes}); do + lsb=$((i + 1)) + + bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \ + dst 2001:db8:2::$lsb + done +} + +flooding_filters_add() +{ + local num_remotes=$1 + local lsb + local i + + tc qdisc add dev $rp2 clsact + + for i in $(eval echo {1..$num_remotes}); do + lsb=$((i + 1)) + + tc filter add dev $rp2 ingress protocol ipv6 pref $i handle $i \ + flower ip_proto udp dst_ip 2001:db8:2::$lsb \ + dst_port 4789 skip_sw action drop + done +} + +flooding_filters_del() +{ + local num_remotes=$1 + local i + + for i in $(eval echo {1..$num_remotes}); do + tc filter del dev $rp2 ingress protocol ipv6 pref $i \ + handle $i flower + done + + tc qdisc del dev $rp2 clsact +} + +flooding_check_packets() +{ + local packets=("$@") + local num_remotes=${#packets[@]} + local i + + for i in $(eval echo {1..$num_remotes}); do + tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]} + check_err $? "remote $i - did not get expected number of packets" + done +} + +flooding_test() +{ + # Use 20 remote VTEPs that will be stored in 4 records. The array + # 'packets' will store how many packets are expected to be received + # by each remote VTEP at each stage of the test + declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1) + local num_remotes=20 + + RET=0 + + # Add FDB entries for remote VTEPs and corresponding tc filters on the + # ingress of the nexthop router. These filters will count how many + # packets were flooded to each remote VTEP + flooding_remotes_add $num_remotes + flooding_filters_add $num_remotes + + # Send one packet and make sure it is flooded to all the remote VTEPs + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 1 packet" + + # Delete the third record which corresponds to VTEPs with LSB 12..16 + # and check that packet is flooded correctly when we remove a record + # from the middle of the list + RET=0 + + packets=(2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::12 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::13 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::14 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::15 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::16 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 2 packets" + + # Delete the first record and make sure the packet is flooded correctly + RET=0 + + packets=(2 2 2 2 2 3 3 3 3 3 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::2 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::3 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::4 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::5 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::6 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 3 packets" + + # Delete the last record and make sure the packet is flooded correctly + RET=0 + + packets=(2 2 2 2 2 4 4 4 4 4 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::17 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::18 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::19 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::20 + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::21 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 4 packets" + + # Delete the last record, one entry at a time and make sure single + # entries are correctly removed + RET=0 + + packets=(2 2 2 2 2 4 5 5 5 5 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::7 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 5 packets" + + RET=0 + + packets=(2 2 2 2 2 4 5 6 6 6 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::8 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 6 packets" + + RET=0 + + packets=(2 2 2 2 2 4 5 6 7 7 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::9 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 7 packets" + + RET=0 + + packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::10 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 8 packets" + + RET=0 + + packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3) + bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::11 + + $MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1 + flooding_check_packets "${packets[@]}" + log_test "flood after 9 packets" + + flooding_filters_del $num_remotes +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS -- cgit v1.2.3