scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 139 insertions, 0 deletions

diff --git a/samples/pktgen/parameters.sh b/samples/pktgen/parameters.sh
new file mode 100644
index 000000000..81906f199
--- /dev/null
+++ b/samples/pktgen/parameters.sh
@@ -0,0 +1,139 @@
+#
+# SPDX-License-Identifier: GPL-2.0
+# Common parameter parsing for pktgen scripts
+#
+
+function usage() {
+    echo ""
+    echo "Usage: $0 [-vx] -i ethX"
+    echo "  -i : (\$DEV)       output interface/device (required)"
+    echo "  -s : (\$PKT_SIZE)  packet size"
+    echo "  -d : (\$DEST_IP)   destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed"
+    echo "  -m : (\$DST_MAC)   destination MAC-addr"
+    echo "  -p : (\$DST_PORT)  destination PORT range (e.g. 433-444) is also allowed"
+    echo "  -k : (\$UDP_CSUM)  enable UDP tx checksum"
+    echo "  -t : (\$THREADS)   threads to start"
+    echo "  -f : (\$F_THREAD)  index of first thread (zero indexed CPU number)"
+    echo "  -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
+    echo "  -n : (\$COUNT)     num messages to send per thread, 0 means indefinitely"
+    echo "  -b : (\$BURST)     HW level bursting of SKBs"
+    echo "  -v : (\$VERBOSE)   verbose"
+    echo "  -x : (\$DEBUG)     debug"
+    echo "  -6 : (\$IP6)       IPv6"
+    echo "  -w : (\$DELAY)     Tx Delay value (ns)"
+    echo "  -a : (\$APPEND)    Script will not reset generator's state, but will append its config"
+    echo ""
+}
+
+##  --- Parse command line arguments / parameters ---
+## echo "Commandline options:"
+while getopts "s:i:d:m:p:f:t:c:n:b:w:vxh6ak" option; do
+    case $option in
+        i) # interface
+          export DEV=$OPTARG
+	  info "Output device set to: DEV=$DEV"
+          ;;
+        s)
+          export PKT_SIZE=$OPTARG
+	  info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
+          ;;
+        d) # destination IP
+          export DEST_IP=$OPTARG
+	  info "Destination IP set to: DEST_IP=$DEST_IP"
+          ;;
+        m) # MAC
+          export DST_MAC=$OPTARG
+	  info "Destination MAC set to: DST_MAC=$DST_MAC"
+          ;;
+        p) # PORT
+          export DST_PORT=$OPTARG
+	  info "Destination PORT set to: DST_PORT=$DST_PORT"
+          ;;
+        f)
+	  export F_THREAD=$OPTARG
+	  info "Index of first thread (zero indexed CPU number): $F_THREAD"
+          ;;
+        t)
+	  export THREADS=$OPTARG
+	  info "Number of threads to start: $THREADS"
+          ;;
+        c)
+	  export CLONE_SKB=$OPTARG
+	  info "CLONE_SKB=$CLONE_SKB"
+          ;;
+        n)
+	  export COUNT=$OPTARG
+	  info "COUNT=$COUNT"
+          ;;
+        b)
+	  export BURST=$OPTARG
+	  info "SKB bursting: BURST=$BURST"
+          ;;
+        w)
+	  export DELAY=$OPTARG
+	  info "DELAY=$DELAY"
+          ;;
+        v)
+          export VERBOSE=yes
+          info "Verbose mode: VERBOSE=$VERBOSE"
+          ;;
+        x)
+          export DEBUG=yes
+          info "Debug mode: DEBUG=$DEBUG"
+          ;;
+	6)
+	  export IP6=6
+	  info "IP6: IP6=$IP6"
+	  ;;
+        a)
+          export APPEND=yes
+          info "Append mode: APPEND=$APPEND"
+          ;;
+        k)
+          export UDP_CSUM=yes
+          info "UDP tx checksum: UDP_CSUM=$UDP_CSUM"
+          ;;
+        h|?|*)
+          usage;
+          err 2 "[ERROR] Unknown parameters!!!"
+    esac
+done
+shift $(( $OPTIND - 1 ))
+
+if [ -z "$PKT_SIZE" ]; then
+    # NIC adds 4 bytes CRC
+    export PKT_SIZE=60
+    info "Default packet size set to: set to: $PKT_SIZE bytes"
+fi
+
+if [ -z "$F_THREAD" ]; then
+    # First thread (F_THREAD) reference the zero indexed CPU number
+    export F_THREAD=0
+fi
+
+if [ -z "$THREADS" ]; then
+    export THREADS=1
+fi
+
+# default DELAY
+[ -z "$DELAY" ] && export DELAY=0 # Zero means max speed
+
+export L_THREAD=$(( THREADS + F_THREAD - 1 ))
+
+if [ -z "$DEV" ]; then
+    usage
+    err 2 "Please specify output device"
+fi
+
+if [ -z "$DST_MAC" ]; then
+    warn "Missing destination MAC address"
+fi
+
+if [ -z "$DEST_IP" ]; then
+    warn "Missing destination IP address"
+fi
+
+if [ ! -d /proc/net/pktgen ]; then
+    info "Loading kernel module: pktgen"
+    modprobe pktgen
+fi