[vslib] Add support for PoE feature

meta/Meta.cpp

@@ -1937,6 +1937,10 @@ void Meta::meta_generic_validation_post_remove(
                 // no special action required
                 break;
 
+            case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+                // no special action required
+                break;
+
             default:
                 META_LOG_THROW(md, "serialization type is not supported yet FIXME");
         }
@@ -3611,6 +3615,9 @@ sai_status_t Meta::meta_generic_validation_create(
                 VALIDATION_LIST(md, value.ipprefixlist);
                 break;
 
+            case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+                break;
+
             default:
 
                 META_LOG_THROW(md, "serialization type is not supported yet FIXME");
@@ -4286,6 +4293,9 @@ sai_status_t Meta::meta_generic_validation_set(
             VALIDATION_LIST(md, value.ipprefixlist);
             break;
 
+        case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+            break;
+
         default:
 
             META_LOG_THROW(md, "serialization type is not supported yet FIXME");
@@ -4673,6 +4683,9 @@ sai_status_t Meta::meta_generic_validation_get(
                 VALIDATION_LIST(md, value.ipprefixlist);
                 break;
 
+            case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+                break;
+
             default:
 
                 // acl capability will is more complex since is in/out we need to check stage
@@ -4946,6 +4959,9 @@ void Meta::meta_generic_validation_post_get(
                 VALIDATION_LIST_GET(md, value.ipprefixlist);
                 break;
 
+            case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+                break;
+
             default:
 
                 META_LOG_THROW(md, "serialization type is not supported yet FIXME");
@@ -5840,6 +5856,10 @@ void Meta::meta_generic_validation_post_create(
                 // no special action required
                 break;
 
+            case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+                // no special action required
+                break;
+
             default:
 
                 META_LOG_THROW(md, "serialization type is not supported yet FIXME");
@@ -6079,6 +6099,10 @@ void Meta::meta_generic_validation_post_set(
             // no special action required
             break;
 
+        case SAI_ATTR_VALUE_TYPE_POE_PORT_POWER_CONSUMPTION:
+            // no special action required
+            break;
+
         default:
             META_LOG_THROW(md, "serialization type is not supported yet FIXME");
     }

meta/SaiSerialize.cpp

@@ -784,6 +784,14 @@ std::string sai_serialize_object_type(
     return sai_serialize_enum(object_type, &sai_metadata_enum_sai_object_type_t);
 }
 
+std::string sai_serialize_switch_type(
+        _In_ const sai_switch_type_t switch_type)
+{
+    SWSS_LOG_ENTER();
+
+    return sai_serialize_enum(switch_type, &sai_metadata_enum_sai_switch_type_t);
+}
+
 std::string sai_serialize_log_level(
         _In_ sai_log_level_t log_level)
 {

meta/sai_serialize.h

@@ -81,6 +81,9 @@ std::string sai_serialize_vlan_id(
 std::string sai_serialize_object_type(
         _In_ const sai_object_type_t object_type);
 
+std::string sai_serialize_switch_type(
+        _In_ const sai_switch_type_t switch_type);
+
 std::string sai_serialize_object_id(
         _In_ const sai_object_id_t object_id);
 

syncd/SaiSwitch.cpp

@@ -135,24 +135,28 @@ void SaiSwitch::getDefaultMacAddress(
 sai_switch_type_t SaiSwitch::getSwitchType() const
 {
     SWSS_LOG_ENTER();
+    sai_switch_type_t switch_type;
     sai_attribute_t attr;
 
     attr.id = SAI_SWITCH_ATTR_TYPE;
 
     sai_status_t status = m_vendorSai->get(SAI_OBJECT_TYPE_SWITCH, m_switch_rid, 1, &attr);
-
     if (status != SAI_STATUS_SUCCESS)
     {
         SWSS_LOG_WARN("failed to get switch type with status: %s, assume default SAI_SWITCH_TYPE_NPU",
                 sai_serialize_status(status).c_str());
 
         // Set to SAI_SWITCH_TYPE_NPU and move on
-        attr.value.s32 = SAI_SWITCH_TYPE_NPU;
+        switch_type = SAI_SWITCH_TYPE_NPU;
+    }
+    else
+    {
+        switch_type = (sai_switch_type_t) attr.value.s32;
     }
 
-    SWSS_LOG_INFO("switch type: '%s'", (attr.value.s32 == SAI_SWITCH_TYPE_NPU ? "SAI_SWITCH_TYPE_NPU" : "SAI_SWITCH_TYPE_PHY"));
+    SWSS_LOG_INFO("switch type: '%s'", sai_serialize_switch_type(switch_type).c_str());
 
-    return (sai_switch_type_t) attr.value.s32;
+    return switch_type;
 }
 
 #define MAX_HARDWARE_INFO_LENGTH 0x1000

syncd/scripts/poesyncdmgrd

@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+
+import os
+import signal
+import subprocess
+import sys
+import syslog
+import time
+
+
+SYSLOG_IDENTIFIER = os.path.basename(__file__)
+
+EXIT_SUCCESS = 0
+EXIT_INSUFFICIENT_PERMISSIONS = 1
+EXIT_UNKNOWN = 2
+
+running = True
+exit_code = EXIT_UNKNOWN
+
+
+def fatal_signal_handler(sig, frame):
+    global running
+
+    signal_name = signal.Signals(sig).name
+
+    syslog.syslog(syslog.LOG_NOTICE, 'Caught signal {} - exiting...'.format(signal_name))
+    exit_code = sig + 128
+    running = False
+
+
+def main():
+    # Only privileged users can run this daemon
+    if os.geteuid() != 0:
+        print('Root privileges required for this operation')
+        return EXIT_INSUFFICIENT_PERMISSIONS
+
+    syslog.openlog(SYSLOG_IDENTIFIER)
+
+    # Register our signal handlers
+    signal.signal(signal.SIGTERM, fatal_signal_handler)
+
+    # Check if a poe config exists
+    if not os.path.isfile('/usr/share/sonic/hwsku/poe_config.json'):
+        syslog.syslog(syslog.LOG_NOTICE, 'PoE is not supported on this platform. Exiting ...')
+        syslog.closelog()
+        time.sleep(2)
+        return EXIT_SUCCESS
+
+    # Spawn poe syncd process
+    cmd = '/usr/bin/syncd -s -p /etc/sai.d/poe.profile -x /usr/share/sonic/hwsku/context_config.json -g 1'
+    proc = subprocess.Popen(cmd.split(), close_fds=True)
+
+    global running
+
+    # Check all of our subprocesses. If any exit, we should too.
+    while running:
+        proc.poll()
+        if proc.returncode is not None:
+            syslog.syslog(syslog.LOG_NOTICE, 'Subprocess PID {} exited. Shutting down ...'.format(proc.pid))
+            running = False
+            break
+        time.sleep(1)
+
+    # If we get here, either the subprocess exited or we recieved a signal to exit
+    # so we send SIGTERM to the subprocesses (if it is still running) before exiting
+    if proc.returncode is None:
+        syslog.syslog(syslog.LOG_INFO, 'Terminating PID {} ...'.format(proc.pid))
+        proc.terminate()
+
+    syslog.closelog()
+
+    return exit_code
+
+
+if __name__ == '__main__':
+    sys.exit(main())

tests/aspell.en.pws

@@ -317,6 +317,8 @@ pn
 PN
 policer
 PORTs
+POE
+PSE
 pre
 printf
 ptr

unittest/vslib/Makefile.am

@@ -42,6 +42,7 @@ tests_SOURCES = main.cpp \
 				TestSwitchNvdaMBF2H536C.cpp \
 				TestSwitchBCM56850.cpp \
 				TestSwitchBCM81724.cpp \
+				TestSwitchPoe.cpp \
 				TestSwitchStateBaseMACsec.cpp \
 				TestMACsecManager.cpp \
 				TestSwitchStateBase.cpp \

unittest/vslib/TestSwitchConfig.cpp

@@ -19,6 +19,9 @@ TEST(SwitchConfig, parseSaiSwitchType)
 
     EXPECT_TRUE(SwitchConfig::parseSaiSwitchType(SAI_VALUE_SAI_SWITCH_TYPE_PHY, type));
     EXPECT_EQ(type, SAI_SWITCH_TYPE_PHY);
+
+    EXPECT_TRUE(SwitchConfig::parseSaiSwitchType(SAI_VALUE_SAI_SWITCH_TYPE_POE, type));
+    EXPECT_EQ(type, SAI_SWITCH_TYPE_POE);
 }
 
 TEST(SwitchConfig, parseSwitchType)
@@ -36,6 +39,9 @@ TEST(SwitchConfig, parseSwitchType)
 
     EXPECT_TRUE(SwitchConfig::parseSwitchType(SAI_VALUE_VS_SWITCH_TYPE_MLNX2700, type));
     EXPECT_EQ(type, SAI_VS_SWITCH_TYPE_MLNX2700);
+
+    EXPECT_TRUE(SwitchConfig::parseSwitchType(SAI_VALUE_VS_SWITCH_TYPE_POE, type));
+    EXPECT_EQ(type, SAI_VS_SWITCH_TYPE_POE);
 }