[SAIServer]Upgrade SAI server init script (#13175) (#13227) (#13232)

Why I did it
why
In order to apply different config across different platform, and use the code with a unified format, reuse syncd init script to init saiserver.

How I did it
how
Reuse syncd init script

How to verify it
Test
Test in DUT s6000 and dx010 with sonic 202205

platform/broadcom/docker-saiserver-brcm.mk

@@ -3,7 +3,13 @@
 DOCKER_SAISERVER_BRCM = docker-saiserver$(SAITHRIFT_VER)-brcm.gz
 $(DOCKER_SAISERVER_BRCM)_PATH = $(PLATFORM_PATH)/docker-saiserver-brcm
 $(DOCKER_SAISERVER_BRCM)_DEPENDS += $(SAISERVER)
-$(DOCKER_SAISERVER_BRCM)_FILES += $(DSSERVE) $(BCMCMD)
+
+# Use syncd_init_common.sh to init hardware platform
+SYNCD_INIT_COMMON_SCRIPT = syncd_init_common.sh
+$(SYNCD_INIT_COMMON_SCRIPT)_PATH = $(SRC_PATH)/sonic-sairedis/syncd/scripts
+SONIC_COPY_FILES += $(SYNCD_INIT_COMMON_SCRIPT)
+
+$(DOCKER_SAISERVER_BRCM)_FILES += $(DSSERVE) $(BCMCMD) $(SYNCD_INIT_COMMON_SCRIPT)
 $(DOCKER_SAISERVER_BRCM)_LOAD_DOCKERS += $(DOCKER_CONFIG_ENGINE_BULLSEYE)
 SONIC_DOCKER_IMAGES += $(DOCKER_SAISERVER_BRCM)
 SONIC_BULLSEYE_DOCKERS += $(DOCKER_SAISERVER_BRCM)

platform/broadcom/docker-saiserver-brcm/Dockerfile.j2

@@ -25,7 +25,10 @@ debs/
 RUN apt-get install -yf kmod
 
 COPY ["files/dsserve", "files/bcmcmd", "start.sh", "bcmsh", "/usr/bin/"]
+COPY ["saiserver_start.sh", "/usr/bin/"]
+COPY ["files/syncd_init_common.sh", "/usr/bin/"]
 RUN chmod +x /usr/bin/dsserve /usr/bin/bcmcmd
+RUN chmod +x /usr/bin/saiserver_start.sh /usr/bin/syncd_init_common.sh
 
 COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
 

platform/broadcom/docker-saiserver-brcm/saiserver_start.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# Copy from src/sonic-sairedis/syncd/scripts/syncd_start.sh
+# Re-use the structure for syncd setup
+# Use it to start saiserver
+# Script to start syncd using supervisord
+#
+
+# Source the file that holds common code for systemd and supervisord
+. /usr/bin/syncd_init_common.sh
+
+get_saiserver_param()
+{
+    IFS=' ' read -r -a array <<< "$CMD_ARGS"
+    for index in "${!array[@]}"
+    do
+        #echo "$index ${array[index]}"
+        if [[ "${array[index]}" == *"-p"* ]]; then
+            SAI_PROFILE="${array[index+1]}"
+        fi
+        if [[ "${array[index]}" == *"-m"* ]]; then
+            PORT_CONFIG="${array[index+1]}"
+        fi
+    done
+}
+
+ENABLE_SAITHRIFT=1
+config_syncd
+get_saiserver_param
+
+echo exec /usr/sbin/saiserver -p ${SAI_PROFILE} -f ${PORT_CONFIG}
+exec /usr/sbin/saiserver -p ${SAI_PROFILE} -f ${PORT_CONFIG}
+#exec ${CMD} ${CMD_ARGS}

platform/broadcom/docker-saiserver-brcm/start.sh

@@ -1,13 +1,6 @@
 #!/usr/bin/env bash
 HWSKU_DIR=/usr/share/sonic/hwsku
 
-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
-}
-
 generate_profile()
 {
     # There are two ways to specify the contents of the SAI_INIT_CONFIG_FILE and they are mutually exclusive
@@ -35,10 +28,6 @@ generate_profile()
 }
 
 rm -f /var/run/rsyslogd.pid
-
 supervisorctl start rsyslogd
-
 generate_profile
-start_bcm
-
 supervisorctl start saiserver

platform/broadcom/docker-saiserver-brcm/supervisord.conf

@@ -20,7 +20,7 @@ stdout_logfile=syslog
 stderr_logfile=syslog
 
 [program:saiserver]
-command=/usr/sbin/saiserver -p /etc/sai.d/sai.profile -f /usr/share/sonic/hwsku/port_config.ini
+command=/usr/bin/saiserver_start.sh
 priority=3
 autostart=false
 autorestart=false