Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/src/seastar/scripts/posix_net_conf.sh b/src/seastar/scripts/posix_net_conf.sh
new file mode 100755
index 00000000..d3fa52d3
--- /dev/null
+++ b/src/seastar/scripts/posix_net_conf.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+# !
+# !  Usage: posix_net_conf.sh [iface name, eth0 by default] [-mq|-sq] [--cpu-mask] [-h|--help] [--use-cpu-mask <mask>]
+# !
+# !  Ban NIC IRQs from being moved by irqbalance.
+# !
+# !  -sq - set all IRQs of a given NIC to CPU0 and configure RPS
+# !        to spreads NAPIs' handling between other CPUs.
+# !
+# !  -mq - distribute NIC's IRQs among all CPUs instead of binding
+# !        them all to CPU0. In this mode RPS is always enabled to
+# !        spreads NAPIs' handling between all CPUs.
+# !
+# !   --options-file <YAML file> - YAML file with perftune.py options
+# !
+# !  If there isn't any mode given script will use a default mode:
+# !     - If number of physical CPU cores per Rx HW queue is greater than 4 - use the '-sq' mode.
+# !     - Otherwise use the '-mq' mode.
+# !
+# !  --use-cpu-mask <mask> - mask of cores to use, by default use all available cores
+# !
+# !  --cpu-mask - Print out RPS CPU assignments. On MQ NIC, just print all cpus.
+# !
+# !  -h|--help - print this help information
+# !
+# !  Enable XPS, increase the default values of somaxconn and tcp_max_syn_backlog.
+# !
+
+usage()
+{
+    cat $0 | grep ^"# !" | cut -d"!" -f2-
+}
+
+parse_args()
+{
+    local i
+    local arg
+
+    until [ -z "$1" ]
+    do
+        arg=$1
+        case "$arg" in
+            "-mq")
+                MQ_MODE="--mode mq"
+                ;;
+            "-sq")
+                MQ_MODE="--mode sq"
+                ;;
+            "--cpu-mask")
+                CPU_MASK="--get-cpu-mask"
+                ;;
+            "--use-cpu-mask")
+                CPU_FILTER_MASK="--cpu-mask $2"
+                shift
+                ;;
+            "--options-file")
+                OPTIONS_FILE="--options-file $2"
+                shift
+                ;;
+            "-h"|"--help")
+                usage
+                exit 0
+                ;;
+            *)
+                IFACE=$arg
+                ;;
+            esac
+            shift
+    done
+}
+
+IFACE="eth0"
+MQ_MODE=""
+CPU_FILTER_MASK=""
+CPU_MASK=""
+MY_DIR=`dirname $0`
+OPTIONS_FILE=""
+
+parse_args $@
+
+$MY_DIR/perftune.py --nic $IFACE $MQ_MODE $CPU_FILTER_MASK $CPU_MASK $OPTIONS_FILE --tune net