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, 430 insertions, 0 deletions

diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh
new file mode 100755
index 000000000..8d91191a0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh
@@ -0,0 +1,430 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ipv4_route_addition_test
+	ipv4_route_deletion_test
+	ipv4_route_replacement_test
+	ipv4_route_offload_failed_test
+	ipv6_route_addition_test
+	ipv6_route_deletion_test
+	ipv6_route_replacement_test
+	ipv6_route_offload_failed_test
+"
+
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEVLINK_DEV=netdevsim/${DEV}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+check_rt_offload_failed()
+{
+	local outfile=$1; shift
+	local line
+
+	# Make sure that the first notification was emitted without
+	# RTM_F_OFFLOAD_FAILED flag and the second with RTM_F_OFFLOAD_FAILED
+	# flag
+	head -n 1 $outfile | grep -q "rt_offload_failed"
+	if [[ $? -eq 0 ]]; then
+		return 1
+	fi
+
+	head -n 2 $outfile | tail -n 1 | grep -q "rt_offload_failed"
+}
+
+check_rt_trap()
+{
+	local outfile=$1; shift
+	local line
+
+	# Make sure that the first notification was emitted without RTM_F_TRAP
+	# flag and the second with RTM_F_TRAP flag
+	head -n 1 $outfile | grep -q "rt_trap"
+	if [[ $? -eq 0 ]]; then
+		return 1
+	fi
+
+	head -n 2 $outfile | tail -n 1 | grep -q "rt_trap"
+}
+
+route_notify_check()
+{
+	local outfile=$1; shift
+	local expected_num_lines=$1; shift
+	local offload_failed=${1:-0}; shift
+
+	# check the monitor results
+	lines=`wc -l $outfile | cut "-d " -f1`
+	test $lines -eq $expected_num_lines
+	check_err $? "$expected_num_lines notifications were expected but $lines were received"
+
+	if [[ $expected_num_lines -eq 1 ]]; then
+		return
+	fi
+
+	if [[ $offload_failed -eq 0 ]]; then
+		check_rt_trap $outfile
+		check_err $? "Wrong RTM_F_TRAP flags in notifications"
+	else
+		check_rt_offload_failed $outfile
+		check_err $? "Wrong RTM_F_OFFLOAD_FAILED flags in notifications"
+	fi
+}
+
+route_addition_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+	local offload_failed=${1:-0}; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route add $route dev dummy1
+	sleep 1
+	kill %% && wait %% &> /dev/null
+
+	route_notify_check $outfile $expected_num_notifications $offload_failed
+	rm -f $outfile
+
+	$IP route del $route dev dummy1
+}
+
+ipv4_route_addition_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	# route_addition_check will assign value to RET.
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the programmed route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the programmed
+	# route.
+	notify=2
+	expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv4 route addition"
+}
+
+route_deletion_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+	$IP route add $route dev dummy1
+	sleep 1
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route del $route dev dummy1
+	sleep 1
+	kill %% && wait %% &> /dev/null
+
+	route_notify_check $outfile $expected_num_notifications
+	rm -f $outfile
+}
+
+ipv4_route_deletion_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+	local expected_num_notifications=1
+
+	# Make sure a single notification will be emitted for the deleted route,
+	# regardless of fib_notify_on_flag_change value.
+	local notify=0
+	# route_deletion_check will assign value to RET.
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	notify=1
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv4 route deletion"
+}
+
+route_replacement_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+	$IP route add $route dev dummy1
+	sleep 1
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route replace $route dev dummy2
+	sleep 1
+	kill %% && wait %% &> /dev/null
+
+	route_notify_check $outfile $expected_num_notifications
+	rm -f $outfile
+
+	$IP route del $route dev dummy2
+}
+
+ipv4_route_replacement_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+
+	$IP link add name dummy2 type dummy
+	$IP link set dev dummy2 up
+
+	# Make sure a single notification will be emitted for the new route.
+	local notify=0
+	local expected_num_notifications=1
+	# route_replacement_check will assign value to RET.
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the new route.
+	notify=2
+	expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	$IP link del name dummy2
+
+	log_test "IPv4 route replacement"
+}
+
+ipv4_route_offload_failed_test()
+{
+
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+	local offload_failed=1
+
+	echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload to fail"
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure two notifications will be emitted for the new route.
+	notify=2
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload not to fail"
+
+	log_test "IPv4 route offload failed"
+}
+
+ipv6_route_addition_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the programmed route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the programmed
+	# route.
+	notify=2
+	expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv6 route addition"
+}
+
+ipv6_route_deletion_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+	local expected_num_notifications=1
+
+	# Make sure a single notification will be emitted for the deleted route,
+	# regardless of fib_notify_on_flag_change value.
+	local notify=0
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	notify=1
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv6 route deletion"
+}
+
+ipv6_route_replacement_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+
+	$IP link add name dummy2 type dummy
+	$IP link set dev dummy2 up
+
+	# Make sure a single notification will be emitted for the new route.
+	local notify=0
+	local expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the new route.
+	notify=2
+	expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	$IP link del name dummy2
+
+	log_test "IPv6 route replacement"
+}
+
+ipv6_route_offload_failed_test()
+{
+
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+	local offload_failed=1
+
+	echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload to fail"
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure two notifications will be emitted for the new route.
+	notify=2
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload not to fail"
+
+	log_test "IPv6 route offload failed"
+}
+
+setup_prepare()
+{
+	modprobe netdevsim &> /dev/null
+	echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+	ip netns add testns1
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to add netns \"testns1\""
+		exit 1
+	fi
+
+	devlink dev reload $DEVLINK_DEV netns testns1
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to reload into netns \"testns1\""
+		exit 1
+	fi
+
+	IP="ip -n testns1"
+
+	$IP link add name dummy1 type dummy
+	$IP link set dev dummy1 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	$IP link del name dummy1
+	ip netns del testns1
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS