mudsut4ke · pull · Jun 22, 2021 · Jun 22, 2021 · Jun 22, 2021
diff --git a/.gitmodules b/.gitmodules
@@ -88,3 +88,7 @@
 [submodule "src/wpasupplicant/sonic-wpa-supplicant"]
 	path = src/wpasupplicant/sonic-wpa-supplicant
 	url = https://github.com/Azure/sonic-wpa-supplicant.git
+[submodule "platform/broadcom/saibcm-modules-dnx"]
+	path = platform/broadcom/saibcm-modules-dnx
+	url = https://github.com/Azure/saibcm-modules.git
+	branch =  sdk-6.5.22-gpl-dnx
diff --git a/...arista/x86_64-arista_7280cr3_32p4/Arista-7280CR3-C40/jr2-a7280cr3-32p4-40x100G.config.bcm b/...arista/x86_64-arista_7280cr3_32p4/Arista-7280CR3-C40/jr2-a7280cr3-32p4-40x100G.config.bcm
@@ -273,10 +273,10 @@ tdma_timeout_usec.BCM8869X=1000000
 tslam_timeout_usec.BCM8869X=1000000
 
 appl_enable_intr_init.BCM8869X=1
-polled_irq_mode.BCM8869X=1
+polled_irq_mode.BCM8869X=0
 polled_irq_delay.BCM8869X=1000
 
-bcm_stat_interval.BCM8869X=1000
+bcm_stat_interval.BCM8869X=1000000
 
 mem_cache_enable_ecc.BCM8869X=1
 mem_cache_enable_parity.BCM8869X=1
@@ -750,7 +750,8 @@ ucode_port_38=CGE23:core_1.38
 ucode_port_39=CGE20:core_1.39
 ucode_port_40=CGE21:core_1.40
 
-rif_id_max=0x4000
+rif_id_max=0x6000
+dpp_db_path=/usr/share/bcm/db
 
 dma_desc_aggregator_chain_length_max.BCM8869X=1000
 dma_desc_aggregator_buff_size_kb.BCM8869X=100

diff --git a/device/arista/x86_64-arista_7280cr3_32p4/platform_env.conf b/device/arista/x86_64-arista_7280cr3_32p4/platform_env.conf
@@ -0,0 +1 @@
+usemsi=1
diff --git a/files/build_templates/sonic_debian_extension.j2 b/files/build_templates/sonic_debian_extension.j2
@@ -285,6 +285,14 @@ sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/sonic-ztp_*.deb || \
     sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
 {% endif %}
 
+{% for machine_debs in lazy_build_installer_debs.strip().split() -%}
+{% set machine, pkgname = machine_debs.split('|') %}
+if [[ -z "{{machine}}" || -n "{{machine}}" && $TARGET_MACHINE == "{{machine}}" ]]; then
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/{{pkgname}} || \
+    sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
+fi
+{% endfor %}
+
 # Install SONiC Device Data  (and its dependencies via 'apt-get -y install -f')
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/sonic-device-data_*.deb || \
     sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
@@ -653,10 +661,11 @@ sudo mount --bind target $FILESYSTEM_ROOT/target
 sudo chroot $FILESYSTEM_ROOT docker $SONIC_NATIVE_DOCKERD_FOR_DOCKERFS info
 
 {% for docker_installation_target in installer_images.strip().split() -%}
-{% set pkgname, docker_build_path, image = docker_installation_target.split('|') %}
+{% set pkgname, docker_build_path, machine, image = docker_installation_target.split('|') %}
 {% set imagefilepath = image.split(':')|first -%}
 {% set imagefilename = imagefilepath.split('/')|last -%}
 {% set imagename = imagefilename.split('.')|first -%}
+if [[ -z "{{machine}}" || -n "{{machine}}" && $TARGET_MACHINE == "{{machine}}" ]]; then
 sudo LANG=C chroot $FILESYSTEM_ROOT docker $SONIC_NATIVE_DOCKERD_FOR_DOCKERFS load -i {{imagefilepath}}
 sudo LANG=C chroot $FILESYSTEM_ROOT docker $SONIC_NATIVE_DOCKERD_FOR_DOCKERFS tag {{imagename}}:latest {{imagename}}:"${SONIC_IMAGE_VERSION}"
 # Check if manifest exists for {{imagename}} and it is a valid JSON
@@ -671,6 +680,7 @@ jq -e . /tmp/manifest.json || {
 sudo LANG=C chroot $FILESYSTEM_ROOT docker $SONIC_NATIVE_DOCKERD_FOR_DOCKERFS tag {{imagename}}:latest {{imagebasename}}:"${SONIC_IMAGE_VERSION}"
 sudo LANG=C chroot $FILESYSTEM_ROOT docker $SONIC_NATIVE_DOCKERD_FOR_DOCKERFS tag {{imagename}}:latest {{imagebasename}}:latest
 {% endif %}
+fi
 {% endfor %}
 
 SONIC_PACKAGE_MANAGER_FOLDER="/var/lib/sonic-package-manager/"
@@ -714,7 +724,11 @@ sudo bash -c "echo { > $FILESYSTEM_ROOT_USR_SHARE_SONIC_TEMPLATES/ctr_image_name
 sudo bash -c "echo } >> $FILESYSTEM_ROOT_USR_SHARE_SONIC_TEMPLATES/ctr_image_names.json"
 
 {% for script in installer_start_scripts.split(' ') -%}
-sudo cp {{script}} $FILESYSTEM_ROOT/usr/bin/
+if [ -f $TARGET_MACHINE"_{{script}}" ]; then
+    sudo cp $TARGET_MACHINE"_{{script}}" $FILESYSTEM_ROOT/usr/bin/{{script}}
+else
+    sudo cp {{script}} $FILESYSTEM_ROOT/usr/bin/
+fi
 {% endfor %}
 {% for service in installer_services.split(' ') -%}
 if [ -f {{service}} ]; then

diff --git a/onie-image-arm64.conf b/onie-image-arm64.conf
@@ -12,6 +12,9 @@
 
 ONIEIMAGE_VERSION=r0
 
+## Filesystem root
+FILESYSTEM_ROOT=./fsroot-${TARGET_MACHINE}
+
 ## Filename for squashfs file system
 FILESYSTEM_SQUASHFS=fs.squashfs
 

diff --git a/onie-image-armhf.conf b/onie-image-armhf.conf
@@ -12,6 +12,9 @@
 
 ONIEIMAGE_VERSION=r0
 
+## Filesystem root
+FILESYSTEM_ROOT=./fsroot-${TARGET_MACHINE}
+
 ## Filename for squashfs file system
 FILESYSTEM_SQUASHFS=fs.squashfs
 

diff --git a/onie-image.conf b/onie-image.conf
@@ -12,6 +12,9 @@
 
 ONIEIMAGE_VERSION=r0
 
+## Filesystem root
+FILESYSTEM_ROOT=./fsroot-${TARGET_MACHINE}
+
 ## Filename for squashfs file system
 FILESYSTEM_SQUASHFS=fs.squashfs
 

diff --git a/onie-mk-demo.sh b/onie-mk-demo.sh
@@ -40,8 +40,7 @@ fi
 }
 
 [ -r "$platform_conf" ] || {
-    echo "Error: Unable to read installer platform configuration file: $platform_conf"
-    exit 1
+    echo "Warning: Unable to read installer platform configuration file: $platform_conf"
 }
 
 [ $# -gt 0 ] || {
@@ -98,7 +97,9 @@ sed -i -e "s/%%DEMO_TYPE%%/$demo_type/g" \
 echo -n "."
 cp -r $* $tmp_installdir || clean_up 1
 echo -n "."
-cp $platform_conf $tmp_installdir || clean_up 1
+[ -r "$platform_conf" ] && {
+    cp $platform_conf $tmp_installdir || clean_up 1
+}
 echo "machine=$machine" > $tmp_installdir/machine.conf
 echo "platform=$platform" >> $tmp_installdir/machine.conf
 echo -n "."

diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc.dep b/platform/broadcom/docker-syncd-brcm-dnx-rpc.dep
@@ -0,0 +1,10 @@
+
+DPATH       := $($(DOCKER_SYNCD_BRCM_DNX_RPC)_PATH)
+DEP_FILES   := $(SONIC_COMMON_FILES_LIST) $(PLATFORM_PATH)/docker-syncd-brcm-dnx-rpc.mk $(PLATFORM_PATH)/docker-syncd-brcm-dnx-rpc.dep   
+DEP_FILES   += $(SONIC_COMMON_BASE_FILES_LIST)
+DEP_FILES   += $(shell git ls-files $(DPATH))
+
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_CACHE_MODE  := GIT_CONTENT_SHA 
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_DEP_FLAGS   := $(SONIC_COMMON_FLAGS_LIST)
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_DEP_FILES   := $(DEP_FILES)
+
diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc.mk b/platform/broadcom/docker-syncd-brcm-dnx-rpc.mk
@@ -0,0 +1,31 @@
+# docker image for brcm syncd with rpc
+
+DOCKER_SYNCD_BRCM_DNX_RPC = docker-syncd-brcm-dnx-rpc.gz
+DOCKER_SYNCD_DNX_BASE = docker-syncd-brcm-dnx.gz
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_PATH = $(PLATFORM_PATH)/docker-syncd-brcm-dnx-rpc
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_DEPENDS += $(SYNCD_RPC) $(LIBTHRIFT) $(PTF)
+ifeq ($(INSTALL_DEBUG_TOOLS), y)
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_DEPENDS += $(SYNCD_RPC_DBG) \
+                                    $(LIBSWSSCOMMON_DBG) \
+                                    $(LIBSAIMETADATA_DBG) \
+                                    $(LIBSAIREDIS_DBG)
+endif
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_FILES += $(DSSERVE) $(BCMCMD) $(SUPERVISOR_PROC_EXIT_LISTENER_SCRIPT)
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_LOAD_DOCKERS += $(DOCKER_SYNCD_DNX_BASE)
+SONIC_DOCKER_IMAGES += $(DOCKER_SYNCD_BRCM_DNX_RPC)
+ifeq ($(ENABLE_SYNCD_RPC),y)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_SYNCD_BRCM_DNX_RPC)
+endif
+
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_CONTAINER_NAME = syncd
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_VERSION = 1.0.0-rpc
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_PACKAGE_NAME = syncd-dnx
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_RUN_OPT += --privileged -t
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_RUN_OPT += -v /host/machine.conf:/etc/machine.conf
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_RUN_OPT += -v /host/warmboot:/var/warmboot
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_RUN_OPT += -v /var/run/docker-syncd:/var/run/sswsyncd
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
+
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_BASE_IMAGE_FILES += bcmcmd:/usr/bin/bcmcmd
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_BASE_IMAGE_FILES += bcmsh:/usr/bin/bcmsh
+$(DOCKER_SYNCD_BRCM_DNX_RPC)_MACHINE = broadcom-dnx
diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc/Dockerfile.j2 b/platform/broadcom/docker-syncd-brcm-dnx-rpc/Dockerfile.j2
@@ -0,0 +1,57 @@
+FROM docker-syncd-brcm-dnx
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+COPY \
+{% for deb in docker_syncd_brcm_dnx_rpc_debs.split(' ') -%}
+debs/{{ deb }}{{' '}}
+{%- endfor -%}
+debs/
+
+RUN apt-get purge -y syncd
+
+## Pre-install the fundamental packages
+RUN apt-get update \
+ && apt-get -y install  \
+    net-tools           \
+    python-pip          \
+    python-setuptools   \
+    build-essential     \
+    libssl-dev          \
+    libffi-dev          \
+    python-dev          \
+    wget                \
+    cmake               \
+    libqt5core5a        \
+    libqt5network5      \
+    libboost-atomic1.71.0
+
+RUN dpkg_apt() { [ -f $1 ] && { dpkg -i $1 || apt-get -y install -f; } || return 1; } ; \
+{% for deb in docker_syncd_brcm_dnx_rpc_debs.split(' ') -%}
+dpkg_apt debs/{{ deb }}{{'; '}}
+{%- endfor %}
+
+RUN wget https://github.com/nanomsg/nanomsg/archive/1.0.0.tar.gz \
+ && tar xvfz 1.0.0.tar.gz \
+ && cd nanomsg-1.0.0    \
+ && mkdir -p build      \
+ && cmake .             \
+ && make install        \
+ && ldconfig            \
+ && cd ..               \
+ && rm -fr nanomsg-1.0.0 \
+ && rm -f 1.0.0.tar.gz  \
+ && pip2 install cffi==1.7.0    \
+ && pip2 install --upgrade cffi==1.7.0 \
+ && pip2 install wheel  \
+ && pip2 install nnpy   \
+ && mkdir -p /opt       \
+ && cd /opt             \
+ && wget https://raw.githubusercontent.com/p4lang/ptf/master/ptf_nn/ptf_nn_agent.py \
+ && apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y \
+ && rm -rf /root/deps
+
+COPY ["ptf_nn_agent.conf", "/etc/supervisor/conf.d/"]
+
+ENTRYPOINT ["/usr/local/bin/supervisord"]
diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc/base_image_files/bcmcmd b/platform/broadcom/docker-syncd-brcm-dnx-rpc/base_image_files/bcmcmd
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker exec -i syncd bcmcmd "$@"
diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc/base_image_files/bcmsh b/platform/broadcom/docker-syncd-brcm-dnx-rpc/base_image_files/bcmsh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker exec -it syncd bcmsh "$@"
diff --git a/platform/broadcom/docker-syncd-brcm-dnx-rpc/ptf_nn_agent.conf b/platform/broadcom/docker-syncd-brcm-dnx-rpc/ptf_nn_agent.conf
@@ -0,0 +1,10 @@
+[program:ptf_nn_agent]
+command=/usr/bin/python /opt/ptf_nn_agent.py --device-socket 1@tcp://0.0.0.0:10900 -i 1-3@Ethernet12 --set-iface-rcv-buffer=109430400
+process_name=ptf_nn_agent
+stdout_logfile=/tmp/ptf_nn_agent.out.log
+stderr_logfile=/tmp/ptf_nn_agent.err.log
+redirect_stderr=false
+autostart=true
+autorestart=true
+startsecs=1
+numprocs=1
diff --git a/platform/broadcom/docker-syncd-brcm-dnx.dep b/platform/broadcom/docker-syncd-brcm-dnx.dep
@@ -0,0 +1,13 @@
+#DPKG FRK
+DOCKER_SYNCD_DNX_BASE = docker-syncd-brcm-dnx.gz
+DOCKER_SYNCD_DNX_BASE_DBG = docker-syncd-brcm-dnx-$(DBG_IMAGE_MARK).gz
+DPATH       := $($(DOCKER_SYNCD_DNX_BASE)_PATH)
+DEP_FILES   := $(SONIC_COMMON_FILES_LIST) platform/broadcom/docker-syncd-brcm-dnx.mk platform/broadcom/docker-syncd-brcm-dnx.dep platform/broadcom/sai.mk 
+DEP_FILES   += $(SONIC_COMMON_BASE_FILES_LIST)
+DEP_FILES   += $(shell git ls-files $(DPATH))
+
+$(DOCKER_SYNCD_DNX_BASE)_CACHE_MODE  := GIT_CONTENT_SHA 
+$(DOCKER_SYNCD_DNX_BASE)_DEP_FLAGS   := $(SONIC_COMMON_FLAGS_LIST)
+$(DOCKER_SYNCD_DNX_BASE)_DEP_FILES   := $(DEP_FILES)
+
+$(eval $(call add_dbg_docker,$(DOCKER_SYNCD_DNX_BASE),$(DOCKER_SYNCD_DNX_BASE_DBG)))
diff --git a/platform/broadcom/docker-syncd-brcm-dnx.mk b/platform/broadcom/docker-syncd-brcm-dnx.mk
@@ -0,0 +1,49 @@
+# docker image for brcm-dnx syncd
+
+DOCKER_SYNCD_DNX_BASE = docker-syncd-brcm-dnx.gz
+DOCKER_SYNCD_DNX_BASE_DBG = docker-syncd-brcm-dnx-$(DBG_IMAGE_MARK).gz
+DOCKER_SYNCD_DNX_PLATFORM_CODE = brcm-dnx
+
+$(DOCKER_SYNCD_DNX_BASE)_PATH = $(PLATFORM_PATH)/docker-syncd-$(DOCKER_SYNCD_DNX_PLATFORM_CODE)
+$(DOCKER_SYNCD_DNX_BASE)_FILES += $(SUPERVISOR_PROC_EXIT_LISTENER_SCRIPT)
+
+$(DOCKER_SYNCD_DNX_BASE)_LOAD_DOCKERS += $(DOCKER_CONFIG_ENGINE_BUSTER)
+$(DOCKER_SYNCD_DNX_BASE)_DBG_DEPENDS += $($(DOCKER_CONFIG_ENGINE_BUSTER)_DBG_DEPENDS)
+$(DOCKER_SYNCD_DNX_BASE)_DBG_IMAGE_PACKAGES = $($(DOCKER_CONFIG_ENGINE_BUSTER)_DBG_IMAGE_PACKAGES)
+
+SONIC_DOCKER_IMAGES += $(DOCKER_SYNCD_DNX_BASE)
+ifneq ($(ENABLE_SYNCD_RPC),y)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_SYNCD_DNX_BASE)
+endif
+
+SONIC_DOCKER_DBG_IMAGES += $(DOCKER_SYNCD_DNX_BASE_DBG)
+ifneq ($(ENABLE_SYNCD_RPC),y)
+SONIC_INSTALL_DOCKER_DBG_IMAGES += $(DOCKER_SYNCD_DNX_BASE_DBG)
+endif
+
+
+$(DOCKER_SYNCD_DNX_BASE)_DEPENDS += $(SYNCD)
+$(DOCKER_SYNCD_DNX_BASE)_DEPENDS += $(BRCM_DNX_SAI)
+$(DOCKER_SYNCD_DNX_BASE)_FILES += $(DSSERVE) $(BCMCMD)
+
+ifeq ($(INSTALL_DEBUG_TOOLS), y)
+$(DOCKER_SYNCD_DNX_BASE)_DBG_DEPENDS += $(SYNCD_DBG) \
+                                $(LIBSWSSCOMMON_DBG) \
+                                $(LIBSAIMETADATA_DBG) \
+                                $(LIBSAIREDIS_DBG)
+endif
+
+$(DOCKER_SYNCD_DNX_BASE)_VERSION = 1.0.0
+$(DOCKER_SYNCD_DNX_BASE)_PACKAGE_NAME = syncd-dnx
+$(DOCKER_SYNCD_DNX_BASE)_MACHINE = broadcom-dnx
+$(DOCKER_SYNCD_DNX_BASE)_AFTER = $(DOCKER_SYNCD_BASE)
+$(DOCKER_SYNCD_DNX_BASE)_CONTAINER_NAME = syncd
+$(DOCKER_SYNCD_DNX_BASE)_RUN_OPT += --privileged -t
+$(DOCKER_SYNCD_DNX_BASE)_RUN_OPT += -v /host/machine.conf:/etc/machine.conf
+$(DOCKER_SYNCD_DNX_BASE)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
+$(DOCKER_SYNCD_DNX_BASE)_RUN_OPT += -v /host/warmboot:/var/warmboot
+
+$(DOCKER_SYNCD_DNX_BASE)_BASE_IMAGE_FILES += bcmcmd:/usr/bin/bcmcmd
+$(DOCKER_SYNCD_DNX_BASE)_BASE_IMAGE_FILES += bcmsh:/usr/bin/bcmsh
+$(DOCKER_SYNCD_DNX_BASE)_BASE_IMAGE_FILES += bcm_common:/usr/bin/bcm_common
+$(DOCKER_SYNCD_DNX_BASE)_BASE_IMAGE_FILES += monit_syncd:/etc/monit/conf.d
diff --git a/platform/broadcom/docker-syncd-brcm-dnx/Dockerfile.j2 b/platform/broadcom/docker-syncd-brcm-dnx/Dockerfile.j2
@@ -0,0 +1,39 @@
+{% from "dockers/dockerfile-macros.j2" import install_debian_packages %}
+FROM docker-config-engine-buster
+
+ARG docker_container_name
+
+RUN [ -f /etc/rsyslog.conf ] && sed -ri "s/%syslogtag%/$docker_container_name#%syslogtag%/;" /etc/rsyslog.conf
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update
+
+COPY \
+{% for deb in docker_syncd_brcm_dnx_debs.split(' ') -%}
+debs/{{ deb }}{{' '}}
+{%- endfor -%}
+debs/
+
+# Install locally-built Debian packages and implicitly install their dependencies
+{{ install_debian_packages(docker_syncd_brcm_dnx_debs.split(' ')) }}
+
+## TODO: add kmod into Depends
+RUN apt-get install -yf kmod
+
+## BRCM uses ethtool to set host interface speed
+RUN apt-get install -y ethtool
+
+COPY ["files/dsserve", "files/bcmcmd", "start.sh", "start_led.sh", "bcmsh", "/usr/bin/"]
+RUN chmod +x /usr/bin/dsserve /usr/bin/bcmcmd
+
+COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
+COPY ["files/supervisor-proc-exit-listener", "/usr/bin"]
+COPY ["critical_processes", "/etc/supervisor/"]
+
+## Clean up
+RUN apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y
+RUN rm -rf /debs
+
+ENTRYPOINT ["/usr/local/bin/supervisord"]
diff --git a/platform/broadcom/docker-syncd-brcm-dnx/base_image_files/bcm_common b/platform/broadcom/docker-syncd-brcm-dnx/base_image_files/bcm_common
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+function help()
+{
+    echo "Usage: $0 -n [0 to $(($NUM_ASIC-1))]" 1>&2; exit 1;
+
+}
+
+
+DEV=""
+
+PLATFORM=`sonic-cfggen -H -v DEVICE_METADATA.localhost.platform`
+
+# Parse the device specific asic conf file, if it exists
+
+ASIC_CONF=/usr/share/sonic/device/$PLATFORM/asic.conf
+if [ -f "$ASIC_CONF" ]; then
+    source $ASIC_CONF
+fi
+
+
+if [[ ($NUM_ASIC -gt 1) ]]; then
+    OPTIND=1
+
+    while getopts ":n:h:" opt; do
+        case "${opt}" in
+            h) help
+               exit 0
+               ;;
+            n) DEV=${OPTARG}
+               [ $DEV -lt $NUM_ASIC -a  $DEV -ge 0 ] || help
+               ;;
+        esac
+    done
+    shift "$((OPTIND-1))"
+
+    if [ -z "${DEV}" ]; then
+        help
+    fi
+fi