From be0a18867a45744a5a2d0dce5b2ef857def1f4e8 Mon Sep 17 00:00:00 2001
From: Joe LeVeque <jolevequ@microsoft.com>
Date: Wed, 10 May 2017 21:22:26 +0000
Subject: [PATCH] [docker-syncd-centec]: Properly manage syncd with supervisord

---
 platform/centec/docker-syncd-centec/syncd.sh | 122 ++++++++++++++++++-
 1 file changed, 116 insertions(+), 6 deletions(-)

diff --git a/platform/centec/docker-syncd-centec/syncd.sh b/platform/centec/docker-syncd-centec/syncd.sh
index 993cf100f2f0..4dfa3d2a1826 100755
--- a/platform/centec/docker-syncd-centec/syncd.sh
+++ b/platform/centec/docker-syncd-centec/syncd.sh
@@ -1,12 +1,122 @@
 #!/usr/bin/env bash
+#
+# Based on /etc/init.d/syncd
 
-function clean_up {
-    service syncd stop
-    exit
+CMD_SYNCD=/usr/bin/syncd
+
+CMD_DSSERVE=/usr/bin/dsserve
+CMD_DSSERVE_ARGS="$CMD_SYNCD --diag"
+
+ENABLE_SAITHRIFT=0
+
+PLATFORM_DIR=/usr/share/sonic/platform
+HWSKU_DIR=/usr/share/sonic/hwsku
+
+if [ -x $CMD_DSSERVE ]; then
+    CMD=$CMD_DSSERVE
+    CMD_ARGS=$CMD_DSSERVE_ARGS
+else
+    CMD=$CMD_SYNCD
+fi
+
+parse_yaml() {
+    local prefix=$2
+    local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
+    sed -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
+         -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p"  $1 |
+    awk -F$fs '{
+        indent = length($1)/2;
+        vname[indent] = $2;
+        for (i in vname) {if (i > indent) {delete vname[i]}}
+        if (length($3) > 0) {
+           vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
+           printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
+        }
+     }'
+}
+
+start_bcm()
+{
+    [ -e /dev/linux-bcm-knet ] || mknod /dev/linux-bcm-knet c 122 0
+    [ -e /dev/linux-user-bde ] || mknod /dev/linux-user-bde c 126 0
+    [ -e /dev/linux-kernel-bde ] || mknod /dev/linux-kernel-bde c 127 0
+}
+
+start_mlnx()
+{
+    [ -e /dev/sxdevs/sxcdev ] || ( mkdir -p /dev/sxdevs && mknod /dev/sxdevs/sxcdev c 231 193 )
+
+    # Read MAC address and align the last 6 bits.
+    MAC_ADDRESS=`ip link show eth0 | grep ether | awk '{print $2}'`
+    last_byte=`python -c "print '$MAC_ADDRESS'[-2:]"`
+    aligned_last_byte=`python -c "print format(int(int('$last_byte', 16) & 0b11000000), '02x')"`  # put mask and take away the 0x prefix
+    ALIGNED_MAC_ADDRESS=`python -c "print '$MAC_ADDRESS'[:-2] + '$aligned_last_byte'"`          # put aligned byte into the end of MAC
+
+    # Write MAC address into /tmp/profile file.
+    cat $HWSKU_DIR/sai.profile > /tmp/sai.profile
+    echo "DEVICE_MAC_ADDRESS=$ALIGNED_MAC_ADDRESS" >> /tmp/sai.profile
 }
 
-trap clean_up SIGTERM SIGKILL
+start_centec()
+{
+    [ -e /dev/linux_dal ] || mknod /dev/linux_dal c 198 0
+    [ -e /dev/net/tun ] || ( mkdir -p /dev/net && mknod /dev/net/tun c 10 200 )
+
+    # Read MAC address and align the last 6 bits.
+    MAC_ADDRESS=`ip link show eth0 | grep ether | awk '{print $2}'`
+    last_byte=`python -c "print '$MAC_ADDRESS'[-2:]"`
+    aligned_last_byte=`python -c "print format(int(int('$last_byte', 16) & 0b11000000), '02x')"`  # put mask and take away the 0x prefix
+    ALIGNED_MAC_ADDRESS=`python -c "print '$MAC_ADDRESS'[:-2] + '$aligned_last_byte'"`          # put aligned byte into the end of MAC
+
+    # Write MAC address into /tmp/profile file.
+
+    # Write MAC address into /tmp/profile file.
+    cat $HWSKU_DIR/sai.profile > /tmp/sai.profile
+    echo "DEVICE_MAC_ADDRESS=$ALIGNED_MAC_ADDRESS" >> /tmp/sai.profile
+}
+
+start_cavium()
+{
+    export XP_ROOT=/usr/bin/
+}
+
+case "$(cat /proc/cmdline)" in
+    *fast-reboot*)
+        FAST_REBOOT='yes'
+        ;;
+    *)
+        FAST_REBOOT='no'
+        ;;
+esac
+
+eval $(parse_yaml /etc/sonic/sonic_version.yml "sonic_")
+
+if [ $sonic_asic_type == "broadcom" ]; then
+    start_bcm
+    CMD_ARGS+=" -p $HWSKU_DIR/sai.profile "
+    if [ $FAST_REBOOT == "yes" ];
+    then
+      CMD_ARGS+=" -t fast "
+    fi
+elif [ $sonic_asic_type == "mellanox" ]; then
+    start_mlnx
+    CMD_ARGS+=" -p /tmp/sai.profile "
+elif [ $sonic_asic_type == "cavium" ]; then
+    CMD_ARGS+=" -p $HWSKU_DIR/sai.profile "
+    start_cavium
+elif [ $sonic_asic_type == "centec" ]; then
+    start_centec
+    CMD_ARGS+=" -p /tmp/sai.profile "
+else
+    echo "Unknown asic type $sonic_asic_type"
+    exit 1
+fi
+
+if [ ${ENABLE_SAITHRIFT} == 1 ]; then
+    CMD_ARGS+=" -r -m $HWSKU_DIR/port_config.ini"
+fi
+
+[ -r $PLATFORM_DIR/syncd.conf ] && . $PLATFORM_DIR/syncd.conf
 
-service syncd start
+exec ${CMD} ${CMD_ARGS}
 
-read