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(). ... --- tools/testing/selftests/gpio/gpio-mockup.sh | 403 ++++++++++++++++++++++++++++ 1 file changed, 403 insertions(+) create mode 100755 tools/testing/selftests/gpio/gpio-mockup.sh (limited to 'tools/testing/selftests/gpio/gpio-mockup.sh') diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh new file mode 100755 index 000000000..0d6c5f7f9 --- /dev/null +++ b/tools/testing/selftests/gpio/gpio-mockup.sh @@ -0,0 +1,403 @@ +#!/bin/bash -efu +# SPDX-License-Identifier: GPL-2.0 + +#exit status +#0: success +#1: fail +#4: skip test - including run as non-root user + +BASE=${0%/*} +DEBUGFS= +GPIO_DEBUGFS= +dev_type="cdev" +module="gpio-mockup" +verbose= +full_test= +random= +uapi_opt= +active_opt= +bias_opt= +line_set_pid= + +# Kselftest return codes +ksft_fail=1 +ksft_skip=4 + +usage() +{ + echo "Usage:" + echo "$0 [-frv] [-t type]" + echo "-f: full test (minimal set run by default)" + echo "-r: test random lines as well as fence posts" + echo "-t: interface type:" + echo " cdev (character device ABI) - default" + echo " cdev_v1 (deprecated character device ABI)" + echo " sysfs (deprecated SYSFS ABI)" + echo "-v: verbose progress reporting" + exit $ksft_fail +} + +skip() +{ + echo "$*" >&2 + echo "GPIO $module test SKIP" + exit $ksft_skip +} + +prerequisite() +{ + [ $(id -u) -eq 0 ] || skip "must be run as root" + + DEBUGFS=$(grep -w debugfs /proc/mounts | cut -f2 -d' ') + [ -d "$DEBUGFS" ] || skip "debugfs is not mounted" + + GPIO_DEBUGFS=$DEBUGFS/$module +} + +remove_module() +{ + modprobe -r -q $module +} + +cleanup() +{ + set +e + release_line + remove_module + jobs -p | xargs -r kill > /dev/null 2>&1 +} + +fail() +{ + echo "test failed: $*" >&2 + echo "GPIO $module test FAIL" + exit $ksft_fail +} + +try_insert_module() +{ + modprobe -q $module "$1" || fail "insert $module failed with error $?" +} + +log() +{ + [ -z "$verbose" ] || echo "$*" +} + +# The following line helpers, release_Line, get_line and set_line, all +# make use of the global $chip and $offset variables. +# +# This implementation drives the GPIO character device (cdev) uAPI. +# Other implementations may override these to test different uAPIs. + +# Release any resources related to the line +release_line() +{ + [ "$line_set_pid" ] && kill $line_set_pid && wait $line_set_pid || true + line_set_pid= +} + +# Read the current value of the line +get_line() +{ + release_line + + local cdev_opts=${uapi_opt}${active_opt} + $BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset + echo $? +} + +# Set the state of the line +# +# Changes to line configuration are provided as parameters. +# The line is assumed to be an output if the line value 0 or 1 is +# specified, else an input. +set_line() +{ + local val= + + release_line + + # parse config options... + for option in $*; do + case $option in + active-low) + active_opt="-l " + ;; + active-high) + active_opt= + ;; + bias-none) + bias_opt= + ;; + pull-down) + bias_opt="-bpull-down " + ;; + pull-up) + bias_opt="-bpull-up " + ;; + 0) + val=0 + ;; + 1) + val=1 + ;; + esac + done + + local cdev_opts=${uapi_opt}${active_opt} + if [ "$val" ]; then + $BASE/gpio-mockup-cdev $cdev_opts -s$val /dev/$chip $offset & + # failure to set is detected by reading mockup and toggling values + line_set_pid=$! + # allow for gpio-mockup-cdev to launch and request line + # (there is limited value in checking if line has been requested) + sleep 0.01 + elif [ "$bias_opt" ]; then + cdev_opts=${cdev_opts}${bias_opt} + $BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset || true + fi +} + +assert_line() +{ + local val + # don't need any retry here as set_mock allows for propagation + val=$(get_line) + [ "$val" = "$1" ] || fail "line value is ${val:-empty} when $1 was expected" +} + +# The following mockup helpers all make use of the $mock_line +assert_mock() +{ + local backoff_wait=10 + local retry=0 + local val + # retry allows for set propagation from uAPI to mockup + while true; do + val=$(< $mock_line) + [ "$val" = "$1" ] && break + retry=$((retry + 1)) + [ $retry -lt 5 ] || fail "mockup $mock_line value ${val:-empty} when $1 expected" + sleep $(printf "%0.2f" $((backoff_wait))e-3) + backoff_wait=$((backoff_wait * 2)) + done +} + +set_mock() +{ + echo "$1" > $mock_line + # allow for set propagation - so we won't be in a race with set_line + assert_mock "$1" +} + +# test the functionality of a line +# +# The line is set from the mockup side and is read from the userspace side +# (input), and is set from the userspace side and is read from the mockup side +# (output). +# +# Setting the mockup pull using the userspace interface bias settings is +# tested where supported by the userspace interface (cdev). +test_line() +{ + chip=$1 + offset=$2 + log "test_line $chip $offset" + mock_line=$GPIO_DEBUGFS/$chip/$offset + [ -e "$mock_line" ] || fail "missing line $chip:$offset" + + # test input active-high + set_mock 1 + set_line input active-high + assert_line 1 + set_mock 0 + assert_line 0 + set_mock 1 + assert_line 1 + + if [ "$full_test" ]; then + if [ "$dev_type" != "sysfs" ]; then + # test pulls + set_mock 0 + set_line input pull-up + assert_line 1 + set_mock 0 + assert_line 0 + + set_mock 1 + set_line input pull-down + assert_line 0 + set_mock 1 + assert_line 1 + + set_line bias-none + fi + + # test input active-low + set_mock 0 + set_line active-low + assert_line 1 + set_mock 1 + assert_line 0 + set_mock 0 + assert_line 1 + + # test output active-high + set_mock 1 + set_line active-high 0 + assert_mock 0 + set_line 1 + assert_mock 1 + set_line 0 + assert_mock 0 + fi + + # test output active-low + set_mock 0 + set_line active-low 0 + assert_mock 1 + set_line 1 + assert_mock 0 + set_line 0 + assert_mock 1 + + release_line +} + +test_no_line() +{ + log test_no_line "$*" + [ ! -e "$GPIO_DEBUGFS/$1/$2" ] || fail "unexpected line $1:$2" +} + +# Load the module and check that the expected number of gpiochips, with the +# expected number of lines, are created and are functional. +# +# $1 is the gpio_mockup_ranges parameter for the module +# The remaining parameters are the number of lines, n, expected for each of +# the gpiochips expected to be created. +# +# For each gpiochip the fence post lines, 0 and n-1, are tested, and the +# line on the far side of the fence post, n, is tested to not exist. +# +# If the $random flag is set then a random line in the middle of the +# gpiochip is tested as well. +insmod_test() +{ + local ranges= + local gc= + local width= + + [ "${1:-}" ] || fail "missing ranges" + ranges=$1 ; shift + try_insert_module "gpio_mockup_ranges=$ranges" + log "GPIO $module test with ranges: <$ranges>:" + # e.g. /sys/kernel/debug/gpio-mockup/gpiochip1 + gpiochip=$(find "$DEBUGFS/$module/" -name gpiochip* -type d | sort) + for chip in $gpiochip; do + gc=${chip##*/} + [ "${1:-}" ] || fail "unexpected chip - $gc" + width=$1 ; shift + test_line $gc 0 + if [ "$random" -a $width -gt 2 ]; then + test_line $gc $((RANDOM % ($width - 2) + 1)) + fi + test_line $gc $(($width - 1)) + test_no_line $gc $width + done + [ "${1:-}" ] && fail "missing expected chip of width $1" + remove_module || fail "failed to remove module with error $?" +} + +while getopts ":frvt:" opt; do + case $opt in + f) + full_test=true + ;; + r) + random=true + ;; + t) + dev_type=$OPTARG + ;; + v) + verbose=true + ;; + *) + usage + ;; + esac +done +shift $((OPTIND - 1)) + +[ "${1:-}" ] && fail "unknown argument '$1'" + +prerequisite + +trap 'exit $ksft_fail' SIGTERM SIGINT +trap cleanup EXIT + +case "$dev_type" in +sysfs) + source $BASE/gpio-mockup-sysfs.sh + echo "WARNING: gpio sysfs ABI is deprecated." + ;; +cdev_v1) + echo "WARNING: gpio cdev ABI v1 is deprecated." + uapi_opt="-u1 " + ;; +cdev) + ;; +*) + fail "unknown interface type: $dev_type" + ;; +esac + +remove_module || fail "can't remove existing $module module" + +# manual gpio allocation tests fail if a physical chip already exists +[ "$full_test" -a -e "/dev/gpiochip0" ] && skip "full tests conflict with gpiochip0" + +echo "1. Module load tests" +echo "1.1. dynamic allocation of gpio" +insmod_test "-1,32" 32 +insmod_test "-1,23,-1,32" 23 32 +insmod_test "-1,23,-1,26,-1,32" 23 26 32 +if [ "$full_test" ]; then + echo "1.2. manual allocation of gpio" + insmod_test "0,32" 32 + insmod_test "0,32,32,60" 32 28 + insmod_test "0,32,40,64,64,96" 32 24 32 + echo "1.3. dynamic and manual allocation of gpio" + insmod_test "-1,32,32,62" 32 30 + insmod_test "-1,22,-1,23,0,24,32,64" 22 23 24 32 + insmod_test "-1,32,32,60,-1,29" 32 28 29 + insmod_test "-1,32,40,64,-1,5" 32 24 5 + insmod_test "0,32,32,44,-1,22,-1,31" 32 12 22 31 +fi +echo "2. Module load error tests" +echo "2.1 gpio overflow" +# Currently: The max number of gpio(1024) is defined in arm architecture. +insmod_test "-1,1024" +if [ "$full_test" ]; then + echo "2.2 no lines defined" + insmod_test "0,0" + echo "2.3 ignore range overlap" + insmod_test "0,32,0,1" 32 + insmod_test "0,32,1,5" 32 + insmod_test "0,32,30,35" 32 + insmod_test "0,32,31,32" 32 + insmod_test "10,32,30,35" 22 + insmod_test "10,32,9,14" 22 + insmod_test "0,32,20,21,40,56" 32 16 + insmod_test "0,32,32,64,32,40" 32 32 + insmod_test "0,32,32,64,36,37" 32 32 + insmod_test "0,32,35,64,34,36" 32 29 + insmod_test "0,30,35,64,35,45" 30 29 + insmod_test "0,32,40,56,30,33" 32 16 + insmod_test "0,32,40,56,30,41" 32 16 + insmod_test "0,32,40,56,39,45" 32 16 +fi + +echo "GPIO $module test PASS" -- cgit v1.2.3