From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- samples/pktgen/functions.sh | 340 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 340 insertions(+) create mode 100644 samples/pktgen/functions.sh (limited to 'samples/pktgen/functions.sh') diff --git a/samples/pktgen/functions.sh b/samples/pktgen/functions.sh new file mode 100644 index 000000000..c08cefb8e --- /dev/null +++ b/samples/pktgen/functions.sh @@ -0,0 +1,340 @@ +# +# Common functions used by pktgen scripts +# - Depending on bash 3 (or higher) syntax +# +# Author: Jesper Dangaaard Brouer +# License: GPL + +set -o errexit + +## -- General shell logging cmds -- +function err() { + local exitcode=$1 + shift + echo "ERROR: $@" >&2 + exit $exitcode +} + +function warn() { + echo "WARN : $@" >&2 +} + +function info() { + if [[ -n "$VERBOSE" ]]; then + echo "INFO : $@" >&2 + fi +} + +## -- Pktgen proc config commands -- ## +export PROC_DIR=/proc/net/pktgen +# +# Three different shell functions for configuring the different +# components of pktgen: +# pg_ctrl(), pg_thread() and pg_set(). +# +# These functions correspond to pktgens different components. +# * pg_ctrl() control "pgctrl" (/proc/net/pktgen/pgctrl) +# * pg_thread() control the kernel threads and binding to devices +# * pg_set() control setup of individual devices +function pg_ctrl() { + local proc_file="pgctrl" + proc_cmd ${proc_file} "$@" +} + +function pg_thread() { + local thread=$1 + local proc_file="kpktgend_${thread}" + shift + proc_cmd ${proc_file} "$@" +} + +function pg_set() { + local dev=$1 + local proc_file="$dev" + shift + proc_cmd ${proc_file} "$@" +} + +# More generic replacement for pgset(), that does not depend on global +# variable for proc file. +function proc_cmd() { + local result + local proc_file=$1 + local status=0 + # after shift, the remaining args are contained in $@ + shift + local proc_ctrl=${PROC_DIR}/$proc_file + if [[ ! -e "$proc_ctrl" ]]; then + err 3 "proc file:$proc_ctrl does not exists (dev added to thread?)" + else + if [[ ! -w "$proc_ctrl" ]]; then + err 4 "proc file:$proc_ctrl not writable, not root?!" + fi + fi + + if [[ "$DEBUG" == "yes" ]]; then + echo "cmd: $@ > $proc_ctrl" + fi + # Quoting of "$@" is important for space expansion + echo "$@" > "$proc_ctrl" || status=$? + + if [[ "$proc_file" != "pgctrl" ]]; then + result=$(grep "Result: OK:" $proc_ctrl) || true + if [[ "$result" == "" ]]; then + grep "Result:" $proc_ctrl >&2 + fi + fi + if (( $status != 0 )); then + err 5 "Write error($status) occurred cmd: \"$@ > $proc_ctrl\"" + fi +} + +# Old obsolete "pgset" function, with slightly improved err handling +function pgset() { + local result + + if [[ "$DEBUG" == "yes" ]]; then + echo "cmd: $1 > $PGDEV" + fi + echo $1 > $PGDEV + local status=$? + + result=`cat $PGDEV | fgrep "Result: OK:"` + if [[ "$result" == "" ]]; then + cat $PGDEV | fgrep Result: + fi + if (( $status != 0 )); then + err 5 "Write error($status) occurred cmd: \"$1 > $PGDEV\"" + fi +} + +function trap_exit() +{ + # Cleanup pktgen setup on exit if thats not "append mode" + if [[ -z "$APPEND" ]] && [[ $EUID -eq 0 ]]; then + trap 'pg_ctrl "reset"' EXIT + fi +} + +## -- General shell tricks -- + +function root_check_run_with_sudo() { + # Trick so, program can be run as normal user, will just use "sudo" + # call as root_check_run_as_sudo "$@" + if [ "$EUID" -ne 0 ]; then + if [ -x $0 ]; then # Directly executable use sudo + info "Not root, running with sudo" + sudo -E "$0" "$@" + exit $? + fi + err 4 "cannot perform sudo run of $0" + fi +} + +# Exact input device's NUMA node info +function get_iface_node() +{ + local node=$( fe80:0:0:0:42:bcff:fe84:e10a +function extend_addr6() +{ + local addr=$1 + local sep=: sep2=:: + local sep_cnt=$(tr -cd $sep <<< $1 | wc -c) + local shrink + + # separator count should be (2 <= $sep_cnt <= 7) + if ! (in_between $sep_cnt 2 7); then + err 5 "Invalid IP6 address: $1" + fi + + # if shrink '::' occurs multiple, it's malformed. + shrink=( $(grep -E -o "$sep{2,}" <<< $addr) ) + if [[ ${#shrink[@]} -ne 0 ]]; then + if [[ ${#shrink[@]} -gt 1 || ( ${shrink[0]} != $sep2 ) ]]; then + err 5 "Invalid IP6 address: $1" + fi + fi + + # add 0 at begin & end, and extend addr by adding :0 + [[ ${addr:0:1} == $sep ]] && addr=0${addr} + [[ ${addr: -1} == $sep ]] && addr=${addr}0 + echo "${addr/$sep2/$(printf ':0%.s' $(seq $[8-sep_cnt])):}" +} + +# Given a single IP(v4/v6) address, whether it is valid. +function validate_addr() +{ + # check function is called with (funcname)6 + [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6 + local bitlen=$[ IP6 ? 128 : 32 ] + local len=$[ IP6 ? 8 : 4 ] + local max=$[ 2**(len*2)-1 ] + local net prefix + local addr sep + + IFS='/' read net prefix <<< $1 + [[ $IP6 ]] && net=$(extend_addr6 $net) + + # if prefix exists, check (0 <= $prefix <= $bitlen) + if [[ -n $prefix ]]; then + if ! (in_between $prefix 0 $bitlen); then + err 5 "Invalid prefix: /$prefix" + fi + fi + + # set separator for each IP(v4/v6) + [[ $IP6 ]] && sep=: || sep=. + IFS=$sep read -a addr <<< $net + + # array length + if [[ ${#addr[@]} != $len ]]; then + err 5 "Invalid IP$IP6 address: $1" + fi + + # check each digit (0 <= $digit <= $max) + for digit in "${addr[@]}"; do + [[ $IP6 ]] && digit=$[ 16#$digit ] + if ! (in_between $digit 0 $max); then + err 5 "Invalid IP$IP6 address: $1" + fi + done + + return 0 +} + +function validate_addr6() { validate_addr $@ ; } + +# Given a single IP(v4/v6) or CIDR, return minimum and maximum IP addr. +function parse_addr() +{ + # check function is called with (funcname)6 + [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6 + local net prefix + local min_ip max_ip + + IFS='/' read net prefix <<< $1 + [[ $IP6 ]] && net=$(extend_addr6 $net) + + if [[ -z $prefix ]]; then + min_ip=$net + max_ip=$net + else + # defining array for converting Decimal 2 Binary + # 00000000 00000001 00000010 00000011 00000100 ... + local d2b='{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}' + [[ $IP6 ]] && d2b+=$d2b + eval local D2B=($d2b) + + local bitlen=$[ IP6 ? 128 : 32 ] + local remain=$[ bitlen-prefix ] + local octet=$[ IP6 ? 16 : 8 ] + local min_mask max_mask + local min max + local ip_bit + local ip sep + + # set separator for each IP(v4/v6) + [[ $IP6 ]] && sep=: || sep=. + IFS=$sep read -ra ip <<< $net + + min_mask="$(printf '1%.s' $(seq $prefix))$(printf '0%.s' $(seq $remain))" + max_mask="$(printf '0%.s' $(seq $prefix))$(printf '1%.s' $(seq $remain))" + + # calculate min/max ip with &,| operator + for i in "${!ip[@]}"; do + digit=$[ IP6 ? 16#${ip[$i]} : ${ip[$i]} ] + ip_bit=${D2B[$digit]} + + idx=$[ octet*i ] + min[$i]=$[ 2#$ip_bit & 2#${min_mask:$idx:$octet} ] + max[$i]=$[ 2#$ip_bit | 2#${max_mask:$idx:$octet} ] + [[ $IP6 ]] && { min[$i]=$(printf '%X' ${min[$i]}); + max[$i]=$(printf '%X' ${max[$i]}); } + done + + min_ip=$(IFS=$sep; echo "${min[*]}") + max_ip=$(IFS=$sep; echo "${max[*]}") + fi + + echo $min_ip $max_ip +} + +function parse_addr6() { parse_addr $@ ; } + +# Given a single or range of port(s), return minimum and maximum port number. +function parse_ports() +{ + local port_str=$1 + local port_list + local min_port + local max_port + + IFS="-" read -ra port_list <<< $port_str + + min_port=${port_list[0]} + max_port=${port_list[1]:-$min_port} + + echo $min_port $max_port +} + +# Given a minimum and maximum port, verify port number. +function validate_ports() +{ + local min_port=$1 + local max_port=$2 + + # 1 <= port <= 65535 + if (in_between $min_port 1 65535); then + if (in_between $max_port 1 65535); then + if [[ $min_port -le $max_port ]]; then + return 0 + fi + fi + fi + + err 5 "Invalid port(s): $min_port-$max_port" +} -- cgit v1.3.1