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, 369 insertions, 0 deletions

diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
new file mode 100755
index 000000000..0bd5ffc21
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
@@ -0,0 +1,369 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap policer functionality over mlxsw.
+
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |                                                                           |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |                            |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	rate_limits_test
+	burst_limits_test
+	rate_test
+	burst_test
+"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+	mtu_set $h1 10000
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	mtu_restore $h1
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24
+	mtu_set $h2 10000
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+}
+
+h2_destroy()
+{
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	mtu_restore $h2
+	simple_if_fini $h2 198.51.100.1/24
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	__addr_add_del $rp1 add 192.0.2.2/24
+	__addr_add_del $rp2 add 198.51.100.2/24
+	mtu_set $rp1 10000
+	mtu_set $rp2 10000
+
+	ip -4 route add blackhole 198.51.100.100
+
+	devlink trap set $DEVLINK_DEV trap blackhole_route action trap
+}
+
+router_destroy()
+{
+	devlink trap set $DEVLINK_DEV trap blackhole_route action drop
+
+	ip -4 route del blackhole 198.51.100.100
+
+	mtu_restore $rp2
+	mtu_restore $rp1
+	__addr_add_del $rp2 del 198.51.100.2/24
+	__addr_add_del $rp1 del 192.0.2.2/24
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1_mac=$(mac_get $rp1)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	# Reload to ensure devlink-trap settings are back to default.
+	devlink_reload
+}
+
+rate_limits_test()
+{
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 0 &> /dev/null
+	check_fail $? "Policer rate was changed to rate lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 \
+		rate 2000000001 &> /dev/null
+	check_fail $? "Policer rate was changed to rate higher than limit"
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 1
+	check_err $? "Failed to set policer rate to minimum"
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 2000000000
+	check_err $? "Failed to set policer rate to maximum"
+
+	log_test "Trap policer rate limits"
+}
+
+burst_limits_test()
+{
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 0 &> /dev/null
+	check_fail $? "Policer burst size was changed to 0"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 17 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size that is not power of 2"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 8 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 \
+		burst $((2**25)) &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size higher than limit"
+
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 16
+	check_err $? "Failed to set policer burst size to minimum"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst $((2**24))
+	check_err $? "Failed to set policer burst size to maximum"
+
+	log_test "Trap policer burst size limits"
+}
+
+trap_rate_get()
+{
+	local t0 t1
+
+	t0=$(devlink_trap_rx_packets_get blackhole_route)
+	sleep 10
+	t1=$(devlink_trap_rx_packets_get blackhole_route)
+
+	echo $(((t1 - t0) / 10))
+}
+
+policer_drop_rate_get()
+{
+	local id=$1; shift
+	local t0 t1
+
+	t0=$(devlink_trap_policer_rx_dropped_get $id)
+	sleep 10
+	t1=$(devlink_trap_policer_rx_dropped_get $id)
+
+	echo $(((t1 - t0) / 10))
+}
+
+__rate_test()
+{
+	local rate pct drop_rate
+	local id=$1; shift
+
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 512
+	devlink trap group set $DEVLINK_DEV group l3_drops policer $id
+
+	# Send packets at highest possible rate and make sure they are dropped
+	# by the policer. Make sure measured received rate is about 1000 pps
+	log_info "=== Tx rate: Highest, Policer rate: 1000 pps ==="
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+
+	sleep 5 # Take measurements when rate is stable
+
+	rate=$(trap_rate_get)
+	pct=$((100 * (rate - 1000) / 1000))
+	((-10 <= pct && pct <= 10))
+	check_err $? "Expected rate 1000 pps, got $rate pps, which is $pct% off. Required accuracy is +-10%"
+	log_info "Expected rate 1000 pps, measured rate $rate pps"
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate > 0 ))
+	check_err $? "Expected non-zero policer drop rate, got 0"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	stop_traffic
+
+	# Send packets at a rate of 1000 pps and make sure they are not dropped
+	# by the policer
+	log_info "=== Tx rate: 1000 pps, Policer rate: 1000 pps ==="
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -d 1msec
+
+	sleep 5 # Take measurements when rate is stable
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate == 0 ))
+	check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	stop_traffic
+
+	# Unbind the policer and send packets at highest possible rate. Make
+	# sure they are not dropped by the policer and that the measured
+	# received rate is higher than 1000 pps
+	log_info "=== Tx rate: Highest, Policer rate: No policer ==="
+
+	devlink trap group set $DEVLINK_DEV group l3_drops nopolicer
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+
+	rate=$(trap_rate_get)
+	(( rate > 1000 ))
+	check_err $? "Expected rate higher than 1000 pps, got $rate pps"
+	log_info "Measured rate $rate pps"
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate == 0 ))
+	check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	stop_traffic
+
+	log_test "Trap policer rate"
+}
+
+rate_test()
+{
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
+
+	log_info "Running rate test for policer 1"
+	__rate_test 1
+
+	log_info "Running rate test for policer $((last_policer / 2))"
+	__rate_test $((last_policer / 2))
+
+	log_info "Running rate test for policer $last_policer"
+	__rate_test $last_policer
+}
+
+__burst_test()
+{
+	local t0_rx t0_drop t1_rx t1_drop rx drop
+	local id=$1; shift
+
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 512
+	devlink trap group set $DEVLINK_DEV group l3_drops policer $id
+
+	# Send a burst of 16 packets and make sure that 16 are received
+	# and that none are dropped by the policer
+	log_info "=== Tx burst size: 16, Policer burst size: 512 ==="
+
+	t0_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t0_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -c 16
+
+	t1_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t1_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	rx=$((t1_rx - t0_rx))
+	(( rx == 16 ))
+	check_err $? "Expected burst size of 16 packets, got $rx packets"
+	log_info "Expected burst size of 16 packets, measured burst size of $rx packets"
+
+	drop=$((t1_drop - t0_drop))
+	(( drop == 0 ))
+	check_err $? "Expected zero policer drops, got $drop"
+	log_info "Measured policer drops of $drop packets"
+
+	# Unbind the policer and send a burst of 64 packets. Make sure that
+	# 64 packets are received and that none are dropped by the policer
+	log_info "=== Tx burst size: 64, Policer burst size: No policer ==="
+
+	devlink trap group set $DEVLINK_DEV group l3_drops nopolicer
+
+	t0_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t0_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -c 64
+
+	t1_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t1_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	rx=$((t1_rx - t0_rx))
+	(( rx == 64 ))
+	check_err $? "Expected burst size of 64 packets, got $rx packets"
+	log_info "Expected burst size of 64 packets, measured burst size of $rx packets"
+
+	drop=$((t1_drop - t0_drop))
+	(( drop == 0 ))
+	check_err $? "Expected zero policer drops, got $drop"
+	log_info "Measured policer drops of $drop packets"
+
+	log_test "Trap policer burst size"
+}
+
+burst_test()
+{
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
+
+	log_info "Running burst test for policer 1"
+	__burst_test 1
+
+	log_info "Running burst test for policer $((last_policer / 2))"
+	__burst_test $((last_policer / 2))
+
+	log_info "Running burst test for policer $last_policer"
+	__burst_test $last_policer
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS