[devices]: Add Broadcom XLR/GTS (BCM9COMX2XMC) support for Tomahawk switch (BCM956960K) (#2682)

These patches add support for the Broadcom XMC card (XLR/GTS). At this moment
only Tomahawk switch (BCM956960K) is supported. Add
device/broadcom/x86_64-bcm_xlr-r0 and
platform/broadcom/sonic-platform-modules-brcm-xlr-gts files

Author: olivier-singla

device/broadcom/x86_64-bcm_xlr-r0/BCM956960K/config_th_32x100.bcm

@@ -0,0 +1,77 @@
+portmap_1=1:100                                       
+portmap_2=5:100                                       
+portmap_3=9:100                                       
+portmap_4=13:100                                      
+portmap_5=17:100                                      
+portmap_6=21:100                                      
+portmap_7=25:100                                      
+portmap_8=29:100                                      
+portmap_34=33:100                                     
+portmap_35=37:100                                     
+portmap_36=41:100                                     
+portmap_37=45:100                                     
+portmap_38=49:100                                     
+portmap_39=53:100                                     
+portmap_40=57:100                                     
+portmap_41=61:100                                     
+portmap_68=65:100                                     
+portmap_69=69:100                                     
+portmap_70=73:100                                     
+portmap_71=77:100                                     
+portmap_72=81:100                                     
+portmap_73=85:100                                     
+portmap_74=89:100                                     
+portmap_75=93:100                                     
+portmap_102=97:100                                    
+portmap_103=101:100                                   
+portmap_104=105:100                                   
+portmap_105=109:100                                   
+portmap_106=113:100                                   
+portmap_107=117:100                                   
+portmap_108=121:100                                   
+portmap_109=125:100                                   
+oversubscribe_mode=1
+portmap_66=129:10
+portmap_100=131:10
+pbmp_xport_xe=0x3fd000000ff4000003fc000001fe
+portmap_33=132:10
+portmap_67=133:10
+portmap_101=134:10
+portmap_135=135:10
+xgxs_tx_lane_map_ce18=0x1032
+xgxs_rx_lane_map_ce18=0x1032
+xgxs_rx_lane_map_ce19=0x2301
+xgxs_rx_lane_map_ce20=0x2301
+xgxs_rx_lane_map_ce21=0x2301
+xgxs_rx_lane_map_ce22=0x2301
+xgxs_rx_lane_map_ce23=0x2301
+xgxs_rx_lane_map_ce24=0x2301
+xgxs_rx_lane_map_ce25=0x2301
+xgxs_rx_lane_map_ce26=0x2301
+xgxs_rx_lane_map_ce27=0x2301
+xgxs_rx_lane_map_ce28=0x2301
+phy_xaui_rx_polarity_flip_ce4=0x2
+phy_xaui_tx_polarity_flip_ce5=0x8
+phy_xaui_rx_polarity_flip_ce5=0x5
+phy_xaui_rx_polarity_flip_ce6=0x2
+phy_xaui_tx_polarity_flip_ce7=0x8
+phy_xaui_tx_polarity_flip_ce8=0x8
+phy_xaui_rx_polarity_flip_ce8=0x8
+phy_xaui_tx_polarity_flip_ce10=0x8
+phy_xaui_rx_polarity_flip_ce10=0x1
+phy_xaui_rx_polarity_flip_ce11=0x2
+phy_xaui_tx_polarity_flip_ce19=0x2
+phy_xaui_rx_polarity_flip_ce19=0x3
+phy_xaui_tx_polarity_flip_ce20=0x8
+phy_xaui_rx_polarity_flip_ce21=0x4
+phy_xaui_tx_polarity_flip_ce22=0x8
+phy_xaui_rx_polarity_flip_ce22=0x8
+phy_xaui_rx_polarity_flip_ce23=0x4
+phy_xaui_rx_polarity_flip_ce24=0x4
+phy_xaui_tx_polarity_flip_ce25=0x8
+phy_xaui_rx_polarity_flip_ce25=0x8
+phy_xaui_rx_polarity_flip_ce26=0x4
+phy_xaui_tx_polarity_flip_ce27=0x8
+phy_xaui_rx_polarity_flip_ce27=0x8
+l2xmsg_mode=1
+fpem_mem_entries=32768

device/broadcom/x86_64-bcm_xlr-r0/BCM956960K/port_config.ini

@@ -0,0 +1,33 @@
+# name          lanes                 alias               index     speed
+Ethernet0       1,2,3,4               Ethernet1/0/1       0         100000
+Ethernet4       5,6,7,8               Ethernet1/0/5       1         100000
+Ethernet8       9,10,11,12            Ethernet1/0/9       2         100000 
+Ethernet12      13,14,15,16           Ethernet1/0/13      3         100000
+Ethernet16      17,18,19,20           Ethernet1/0/17      4         100000
+Ethernet20      21,22,23,24           Ethernet1/0/21      5         100000
+Ethernet24      25,26,27,28           Ethernet1/0/25      6         100000
+Ethernet28      29,30,31,32           Ethernet1/0/29      7         100000
+Ethernet32      33,34,35,36           Ethernet1/0/33      8         100000
+Ethernet36      37,38,39,40           Ethernet1/0/37      9         100000
+Ethernet40      41,42,43,44           Ethernet1/0/41      10        100000
+Ethernet44      45,46,47,48           Ethernet1/0/45      11        100000
+Ethernet48      49,50,51,52           Ethernet1/0/49      12        100000
+Ethernet52      53,54,55,56           Ethernet1/0/53      13        100000
+Ethernet56      57,58,59,60           Ethernet1/0/57      14        100000
+Ethernet60      61,62,63,64           Ethernet1/0/61      15        100000
+Ethernet64      65,66,67,68           Ethernet1/0/65      16        100000
+Ethernet68      69,70,71,72           Ethernet1/0/69      17        100000
+Ethernet72      73,74,75,76           Ethernet1/0/73      18        100000
+Ethernet76      77,78,79,80           Ethernet1/0/77      19        100000
+Ethernet80      81,82,83,84           Ethernet1/0/81      20        100000
+Ethernet84      85,86,87,88           Ethernet1/0/85      21        100000
+Ethernet88      89,90,91,92           Ethernet1/0/89      22        100000
+Ethernet92      93,94,95,96           Ethernet1/0/93      23        100000
+Ethernet96      97,98,99,100          Ethernet1/0/97      24        100000
+Ethernet100     101,102,103,104       Ethernet1/0/101     25        100000
+Ethernet104     105,106,107,108       Ethernet1/0/105     26        100000
+Ethernet108     109,110,111,112       Ethernet1/0/109     27        100000
+Ethernet112     113,114,115,116       Ethernet1/0/113     28        100000
+Ethernet116     117,118,119,120       Ethernet1/0/117     29        100000
+Ethernet120     121,122,123,124       Ethernet1/0/121     30        100000
+Ethernet124     125,126,127,128       Ethernet1/0/125     31        100000 

device/broadcom/x86_64-bcm_xlr-r0/BCM956960K/sai.profile

@@ -0,0 +1 @@
+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/config_th_32x100.bcm

device/broadcom/x86_64-bcm_xlr-r0/default_sku

@@ -0,0 +1 @@
+bcm_xlr t1

device/broadcom/x86_64-bcm_xlr-r0/installer.conf

@@ -0,0 +1,9 @@
+if [ -d /sys/devices/pci0000:00/0000:00:13.0 ]; then
+  CONSOLE_PORT=0x3e8
+  CONSOLE_DEV=2
+else
+  CONSOLE_PORT=0x3f8
+  CONSOLE_DEV=0
+fi
+ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.dma=0 libata.noacpi=1"
+CONSOLE_SPEED=115200

device/broadcom/x86_64-bcm_xlr-r0/plugins/eeprom.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+#############################################################################
+# Broadcom XLR/GTS 'eeprom' support
+#
+# 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
+#
+# Note: the file /etc/sys_eeprom.bin is generated by the script
+#       brcm-xlr-gts-create-eeprom-file.py
+#############################################################################
+
+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 = "/etc/sys_eeprom.bin"
+        super(board, self).__init__(self.eeprom_path, 0, '', False, True)
+
+    def serial_number_str(self, e):
+        """Return service tag instead of serial number"""
+        return "No service tag"

device/broadcom/x86_64-bcm_xlr-r0/plugins/psuutil.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+import os.path
+
+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)
+
+    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 0
+
+    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
+        """
+        return False
+
+    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
+        """
+        return False

device/broadcom/x86_64-bcm_xlr-r0/plugins/sfputil.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+
+try:
+    import time
+    import os
+    from sonic_sfp.sfputilbase import SfpUtilBase
+except ImportError as e:
+    raise ImportError("%s - required module not found" % str(e))
+
+
+class SfpUtil(SfpUtilBase):
+    """Platform-specific SfpUtil class"""
+
+    PORT_START = 1
+    PORT_END = 52
+    _port_to_eeprom_mapping = {}
+
+    @property
+    def port_start(self):
+        return self.PORT_START
+
+    @property
+    def port_end(self):
+        return self.PORT_END
+
+    @property
+    def qsfp_ports(self):
+        return []
+
+    @property
+    def port_to_eeprom_mapping(self):
+        return self._port_to_eeprom_mapping
+
+    def __init__(self):
+        SfpUtilBase.__init__(self)
+
+    def get_presence(self, port_num):
+        return False
+
+    def get_low_power_mode(self, port_num):
+        raise NotImplementedError
+
+    def set_low_power_mode(self, port_num, lpmode):
+        raise NotImplementedError
+
+    def reset(self, port_num):
+        raise NotImplementedError
+
+    def get_transceiver_change_event(self, timeout=0):
+        raise NotImplementedError

platform/broadcom/one-image.mk

@@ -38,6 +38,7 @@ $(SONIC_ONE_IMAGE)_LAZY_INSTALLS += $(DELL_S6000_PLATFORM_MODULE) \
                                $(QUANTA_IX1B_32X_PLATFORM_MODULE) \
                                $(MITAC_LY1200_32X_PLATFORM_MODULE) \
                                $(ALPHANETWORKS_SNH60A0_320FV2_PLATFORM_MODULE) \
-                               $(ALPHANETWORKS_SNH60B0_640F_PLATFORM_MODULE)
+                               $(ALPHANETWORKS_SNH60B0_640F_PLATFORM_MODULE) \
+                               $(BRCM_XLR_GTS_PLATFORM_MODULE)
 $(SONIC_ONE_IMAGE)_DOCKERS += $(SONIC_INSTALL_DOCKER_IMAGES)
 SONIC_INSTALLERS += $(SONIC_ONE_IMAGE)

platform/broadcom/platform-modules-brcm-xlr-gts.mk

@@ -0,0 +1,15 @@
+# Broadcom XLR/GTS Platform modules
+
+BRCM_XLR_GTS_PLATFORM_MODULE_VERSION = 1.0
+
+export BRCM_XLR_GTS_PLATFORM_MODULE_VERSION
+
+BRCM_XLR_GTS_PLATFORM_MODULE = sonic-platform-brcm-xlr-gts_$(BRCM_XLR_GTS_PLATFORM_MODULE_VERSION)_amd64.deb
+$(BRCM_XLR_GTS_PLATFORM_MODULE)_SRC_PATH = $(PLATFORM_PATH)/sonic-platform-modules-brcm-xlr-gts
+$(BRCM_XLR_GTS_PLATFORM_MODULE)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
+$(BRCM_XLR_GTS_PLATFORM_MODULE)_PLATFORM = x86_64-bcm_xlr-r0
+SONIC_MAKE_DEBS += $(BRCM_XLR_GTS_PLATFORM_MODULE)
+
+export BRCM_XLR_GTS_PLATFORM_MODULE 
+
+SONIC_STRETCH_DEBS += $(BRCM_XLR_GTS_PLATFORM_MODULE)