[centec]: Add centec arm64 architecture support for E530 (#4641)

summary of E530 platfrom:
 - CPU: CTC5236, arm64
 - LAN switch chip set: CENTEC CTC7132 (TsingMa). TsingMa is a purpose built device to address the challenge in the recent network evolution such as Cloud computing. CTC7132 provides 440Gbps I/O bandwidth and 400Gcore bandwidth, the CTC7132 family combines a feature-rich switch core and an embedded ARM A53 CPU Core running at 800MHz/1.2GHz. CTC7132 supports a variety of port configurations, such as QSGMII and USXGMII-M, providing full-rate port capability from 100M to 100G.
- device E530-48T4X: 48 * 10/100/1000 Base-T Ports, 4 * 10GE SFP+ Ports.
- device E530-24X2C: 24 * 10 GE SFP+ Ports, 2 * 100GE QSFP28 Ports.

add new files in three directories:
device/centec/arm64-centec_e530_24x2c-r0
device/centec/arm64-centec_e530_48t4x_p-r0
platform/centec-arm64

Co-authored-by: taocy <taocy2@centecnetworks.com>
Co-authored-by: Gu Xianghong <gxh2001757@163.com>
Co-authored-by: shil <shil@centecnetworks.com>

build_debian.sh

@@ -187,6 +187,10 @@ if [[ $CONFIGURED_ARCH == armhf || $CONFIGURED_ARCH == arm64 ]]; then
     sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/uboot-utils
     cat files/initramfs-tools/modules.arm | sudo tee -a $FILESYSTEM_ROOT/etc/initramfs-tools/modules > /dev/null
 fi
+# Update initramfs for load platform specific modules
+if [ -f platform/$CONFIGURED_PLATFORM/modules ]; then
+    cat platform/$CONFIGURED_PLATFORM/modules | sudo tee -a $FILESYSTEM_ROOT/etc/initramfs-tools/modules > /dev/null
+fi
 
 ## Install docker
 echo '[INFO] Install docker'

device/centec/arm64-centec_e530_24x2c-r0/E530-24x2c/buffers.json.j2

@@ -0,0 +1,70 @@
+{# Default values which will be used if no actual configura available #}
+{% set default_cable = '40m' %}
+{% set default_ports_num = 54 -%}
+
+{# Port configuration to cable length look-up table #}
+{# Each record describes mapping of DUT (DUT port) role and neighbor role to cable length #}
+{# Roles described in the minigraph #}
+{% set ports2cable = {
+        'torrouter_server'       : '5m',
+        'leafrouter_torrouter'   : '40m',
+        'spinerouter_leafrouter' : '300m'
+        }
+%}
+
+{%- macro cable_length(port_name) -%}
+    {%- set cable_len = [] -%}
+    {%- for local_port in DEVICE_NEIGHBOR -%}
+        {%- if local_port == port_name -%}
+            {%- if DEVICE_NEIGHBOR_METADATA[DEVICE_NEIGHBOR[local_port].name] -%}
+                {%- set neighbor = DEVICE_NEIGHBOR_METADATA[DEVICE_NEIGHBOR[local_port].name] -%}
+                {%- set neighbor_role = neighbor.type -%}
+                {%- set roles1 = switch_role + '_' + neighbor_role %}
+                {%- set roles2 = neighbor_role + '_' + switch_role -%}
+                {%- set roles1 = roles1 | lower -%}
+                {%- set roles2 = roles2 | lower -%}
+                {%- if roles1 in ports2cable -%}
+                    {%- if cable_len.append(ports2cable[roles1]) -%}{%- endif -%}
+                {%- elif roles2 in ports2cable -%}
+                    {%- if cable_len.append(ports2cable[roles2]) -%}{%- endif -%}
+                {%- endif -%}
+            {%- endif -%}
+        {%- endif -%}
+    {%- endfor -%}
+    {%- if cable_len -%}
+        {{ cable_len.0 }}
+    {%- else -%}
+        {{ default_cable }}
+    {%- endif -%}
+{% endmacro %}
+
+{%- if DEVICE_METADATA is defined %}
+{%- set switch_role = DEVICE_METADATA['localhost']['type'] %}
+{%- endif -%}
+
+{# Generate list of ports if not defined #}
+{% if PORT is not defined %}
+    {% set PORT = [] %}
+    {% for port_idx in range(1,default_ports_num+1) %}
+        {% if PORT.append("Ethernet%d" % (port_idx)) %}{% endif %}
+    {% endfor %}
+{% endif -%}
+
+{% set port_names_list = [] %}
+{% for port in PORT %}
+    {%- if port_names_list.append(port) %}{% endif %}
+{% endfor %}
+{% set port_names = port_names_list | join(',') -%}
+
+{
+    "CABLE_LENGTH": {
+        "AZURE": {
+    {% for port in PORT %}
+        {% set cable = cable_length(port) -%}
+        "{{ port }}": "{{ cable }}"{%- if not loop.last -%},{% endif %}
+
+    {% endfor %}
+    }
+    }
+}
+

device/centec/arm64-centec_e530_24x2c-r0/E530-24x2c/pg_profile_lookup.ini

@@ -0,0 +1,21 @@
+# PG lossless profiles.
+# speed cable size    xon  xoff threshold
+   1000  5m   34816  18432 16384  0
+  10000  5m   34816  18432 16384  0
+  25000  5m   34816  18432 16384  0
+  40000  5m   34816  18432 16384  0
+  50000  5m   34816  18432 16384  0
+ 100000  5m   36864  18432 18432  0
+   1000  40m  36864  18432 18432  0
+  10000  40m  36864  18432 18432  0
+  25000  40m  39936  18432 21504  0
+  40000  40m  41984  18432 23552  0
+  50000  40m  41984  18432 23552  0
+ 100000  40m  54272  18432 35840  0
+   1000  300m 49152  18432 30720  0
+  10000  300m 49152  18432 30720  0
+  25000  300m 71680  18432 53248  0
+  40000  300m 94208  18432 75776  0
+  50000  300m 94208  18432 75776  0
+ 100000  300m 184320 18432 165888 0
+

device/centec/arm64-centec_e530_24x2c-r0/E530-24x2c/port_config.ini

@@ -0,0 +1,27 @@
+# name lanes  alias             speed
+Ethernet1         0              eth-0-1         10000
+Ethernet2         1              eth-0-2         10000
+Ethernet3         2              eth-0-3         10000
+Ethernet4         3              eth-0-4         10000
+Ethernet5         8              eth-0-5         10000
+Ethernet6         9              eth-0-6         10000
+Ethernet7         10             eth-0-7         10000
+Ethernet8         11             eth-0-8         10000
+Ethernet9         20             eth-0-9         10000
+Ethernet10        21             eth-0-10        10000  
+Ethernet11        22             eth-0-11        10000
+Ethernet12        23             eth-0-12        10000
+Ethernet13        12             eth-0-13        10000
+Ethernet14        13             eth-0-14        10000
+Ethernet15        14             eth-0-15        10000
+Ethernet16        15             eth-0-16        10000
+Ethernet17        24             eth-0-17        10000
+Ethernet18        25             eth-0-18        10000
+Ethernet19        26             eth-0-19        10000
+Ethernet20        27             eth-0-20        10000
+Ethernet21        28             eth-0-21        10000
+Ethernet22        29             eth-0-22        10000
+Ethernet23        30             eth-0-23        10000
+Ethernet24        31             eth-0-24        10000
+Ethernet25        61,60,63,62    eth-0-25        100000
+Ethernet26        45,44,47,46    eth-0-26        100000

device/centec/arm64-centec_e530_24x2c-r0/E530-24x2c/qos.json.j2

@@ -0,0 +1 @@
+{%- include 'qos_config.j2' %}

device/centec/arm64-centec_e530_24x2c-r0/E530-24x2c/sai.profile

@@ -0,0 +1,2 @@
+SAI_INIT_CONFIG_FILE=/etc/centec/E530-24x2c-chip-profile.txt
+SAI_HW_PORT_PROFILE_ID_CONFIG_FILE=/etc/centec/E530-24x2c-datapath-cfg.txt

device/centec/arm64-centec_e530_24x2c-r0/default_sku

@@ -0,0 +1 @@
+E530-24x2c l2

device/centec/arm64-centec_e530_24x2c-r0/fancontrol

@@ -0,0 +1 @@
+# Configuration file generated by pwmconfig, changes will be lost

device/centec/arm64-centec_e530_24x2c-r0/plugins/eeprom.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+
+#############################################################################
+# Centec E550-24X8Y2C
+#
+# Platform and model specific eeprom subclass, inherits from the base class,
+# and provides the followings:
+# - the eeprom format definition
+# - specific encoder/decoder if there is special need
+#############################################################################
+
+try:
+    from sonic_eeprom import eeprom_tlvinfo
+except ImportError, e:
+    raise ImportError (str(e) + "- required module not found")
+
+
+class board(eeprom_tlvinfo.TlvInfoDecoder):
+
+    def __init__(self, name, path, cpld_root, ro):
+        self.eeprom_path = "/dev/mtd3"
+        super(board, self).__init__(self.eeprom_path, 0, '', True)

device/centec/arm64-centec_e530_24x2c-r0/plugins/led_control.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+#
+# led_control.py
+#
+# Platform-specific LED control functionality for SONiC
+#
+
+try:
+    from sonic_led.led_control_base import LedControlBase
+    import syslog
+    from socket import *
+    from select import *
+except ImportError, e:
+    raise ImportError(str(e) + " - required module not found")
+
+
+def DBG_PRINT(str):
+    syslog.openlog("centec-led")
+    syslog.syslog(syslog.LOG_INFO, str)
+    syslog.closelog()
+
+
+class LedControl(LedControlBase):
+    """Platform specific LED control class"""
+
+
+    # Helper method to map SONiC port name to index
+    def _port_name_to_index(self, port_name):
+        # Strip "Ethernet" off port name
+        if not port_name.startswith(self.SONIC_PORT_NAME_PREFIX):
+            return -1
+
+        port_idx = int(port_name[len(self.SONIC_PORT_NAME_PREFIX):])
+        return port_idx
+
+    def _port_state_to_mode(self, port_idx, state):
+        if state == "up":
+            return self.LED_MODE_UP[0] if (port_idx < 25) else self.LED_MODE_UP[1]
+        else:
+            return self.LED_MODE_DOWN[0] if (port_idx < 25) else self.LED_MODE_DOWN[1]
+
+    def _port_led_mode_update(self, port_idx, ledMode):
+        with open(self.f_led.format("port{}".format(port_idx)), 'w') as led_file:
+            led_file.write(str(ledMode))
+
+    def _initSystemLed(self):
+        try:
+            with open(self.f_led.format("system"), 'w') as led_file:
+                led_file.write("1")
+            DBG_PRINT("init system led to normal")
+            with open(self.f_led.format("idn"), 'w') as led_file:
+                led_file.write("1")
+            DBG_PRINT("init idn led to off")
+        except IOError as e:
+            DBG_PRINT(str(e))
+
+    def _initPanelLed(self):
+        with open(self.f_led.format("port1"), 'r') as led_file:
+            shouldInit = (int(led_file.read()) == 0)
+
+        if shouldInit == True:
+            for idx in range(1, 27):
+                defmode = self._port_state_to_mode(idx, "down")
+                with open(self.f_led.format("port{}".format(idx)), 'w') as led_file:
+                    led_file.write(str(defmode))
+                    DBG_PRINT("init port{} led to mode={}".format(idx, defmode))
+
+    def _initDefaultConfig(self):
+        DBG_PRINT("start init led")
+
+        self._initSystemLed()
+        self._initPanelLed()
+
+        DBG_PRINT("init led done")
+
+
+    # Concrete implementation of port_link_state_change() method
+    def port_link_state_change(self, portname, state):
+        port_idx = self._port_name_to_index(portname)
+        ledMode = self._port_state_to_mode(port_idx, state)
+        with open(self.f_led.format("port{}".format(port_idx)), 'r') as led_file:
+            saveMode = int(led_file.read())
+
+        if ledMode == saveMode:
+            return
+
+        self._port_led_mode_update(port_idx, ledMode)
+        DBG_PRINT("update {} led mode from {} to {}".format(portname, saveMode, ledMode))
+
+
+    # Constructor
+    def __init__(self):
+        self.SONIC_PORT_NAME_PREFIX = "Ethernet"
+        self.LED_MODE_UP = [11, 11]
+        self.LED_MODE_DOWN = [7, 7]
+
+        self.f_led = "/sys/class/leds/{}/brightness"
+        self._initDefaultConfig()

device/centec/arm64-centec_e530_24x2c-r0/plugins/psuutil.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+
+#############################################################################
+# Centec
+#
+# Module contains an implementation of SONiC PSU Base API and
+# provides the PSUs status which are available in the platform
+#
+#############################################################################
+
+try:
+    from sonic_psu.psu_base import PsuBase
+except ImportError as e:
+    raise ImportError (str(e) + "- required module not found")
+
+class PsuUtil(PsuBase):
+    """Platform-specific PSUutil class"""
+
+    def __init__(self):
+        PsuBase.__init__(self)
+
+        self.psu_path = "/sys/class/psu/psu{}/"
+        self.psu_presence = "psu_presence"
+        self.psu_oper_status = "psu_status"
+
+    def get_num_psus(self):
+        """
+        Retrieves the number of PSUs available on the device
+
+        :return: An integer, the number of PSUs available on the device
+        """
+        return 2
+
+    def get_psu_status(self, index):
+        """
+        Retrieves the oprational status of power supply unit (PSU) defined
+                by 1-based index <index>
+
+        :param index: An integer, 1-based index of the PSU of which to query status
+        :return: Boolean, True if PSU is operating properly, False if PSU is faulty
+        """
+        if index is None:
+            return False
+
+        status = 0
+        try:
+            with open(self.psu_path.format(index) + self.psu_oper_status, 'r') as power_status:
+                status = int(power_status.read())
+        except IOError:
+            return False
+
+        return status == 1
+
+    def get_psu_presence(self, index):
+        """
+        Retrieves the presence status of power supply unit (PSU) defined
+                by 1-based index <index>
+
+        :param index: An integer, 1-based index of the PSU of which to query status
+        :return: Boolean, True if PSU is plugged, False if not
+        """
+        if index is None:
+            return False
+
+        status = 0
+        try:
+            with open(self.psu_path.format(index) + self.psu_presence, 'r') as presence_status:
+                status = int(presence_status.read())
+        except IOError:
+            return False
+
+        return status == 1