[sai_failure_dump]Invoking dump during SAI failure (sonic-net#2644)

* [sai_failure_dump]Invoking dump during SAI failure
mihirpat1 · Feb 8, 2023 · 44ea6a0 · 44ea6a0
1 parent 065a471
commit 44ea6a0
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Showing 7 changed files with 208 additions and 14 deletions.
diff --git a/orchagent/main.cpp b/orchagent/main.cpp
@@ -126,7 +126,7 @@ void syncd_apply_view()
     if (status != SAI_STATUS_SUCCESS)
     {
         SWSS_LOG_ERROR("Failed to notify syncd APPLY_VIEW %d", status);
-        exit(EXIT_FAILURE);
+        handleSaiFailure(true);
     }
 }
 
@@ -619,7 +619,7 @@ int main(int argc, char **argv)
     if (status != SAI_STATUS_SUCCESS)
     {
         SWSS_LOG_ERROR("Failed to create a switch, rv:%d", status);
-        exit(EXIT_FAILURE);
+        handleSaiFailure(true);
     }
     SWSS_LOG_NOTICE("Create a switch, id:%" PRIu64, gSwitchId);
 
@@ -650,7 +650,7 @@ int main(int argc, char **argv)
             if (status != SAI_STATUS_SUCCESS)
             {
                 SWSS_LOG_ERROR("Failed to get MAC address from switch, rv:%d", status);
-                exit(EXIT_FAILURE);
+                handleSaiFailure(true);
             }
             else
             {
@@ -665,7 +665,7 @@ int main(int argc, char **argv)
         if (status != SAI_STATUS_SUCCESS)
         {
             SWSS_LOG_ERROR("Fail to get switch virtual router ID %d", status);
-            exit(EXIT_FAILURE);
+            handleSaiFailure(true);
         }
 
         gVirtualRouterId = attr.value.oid;
@@ -707,7 +707,7 @@ int main(int argc, char **argv)
         if (status != SAI_STATUS_SUCCESS)
         {
             SWSS_LOG_ERROR("Failed to create underlay router interface %d", status);
-            exit(EXIT_FAILURE);
+            handleSaiFailure(true);
         }
 
         SWSS_LOG_NOTICE("Created underlay router interface ID %" PRIx64, gUnderlayIfId);

diff --git a/orchagent/orchdaemon.cpp b/orchagent/orchdaemon.cpp
@@ -675,7 +675,7 @@ void OrchDaemon::flush()
     if (status != SAI_STATUS_SUCCESS)
     {
         SWSS_LOG_ERROR("Failed to flush redis pipeline %d", status);
-        abort();
+        handleSaiFailure(true);
     }
 }
 

diff --git a/orchagent/saihelper.cpp b/orchagent/saihelper.cpp
@@ -496,7 +496,8 @@ task_process_status handleSaiCreateStatus(sai_api_t api, sai_status_t status, vo
                 default:
                     SWSS_LOG_ERROR("Encountered failure in create operation, exiting orchagent, SAI API: %s, status: %s",
                                 sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-                    abort();
+                    handleSaiFailure(true);
+                    break;
             }
             break;
         case SAI_API_HOSTIF:
@@ -514,8 +515,10 @@ task_process_status handleSaiCreateStatus(sai_api_t api, sai_status_t status, vo
                 default:
                     SWSS_LOG_ERROR("Encountered failure in create operation, exiting orchagent, SAI API: %s, status: %s",
                                 sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-                    abort();
+                    handleSaiFailure(true);
+                    break;
             }
+            break;
         default:
             switch (status)
             {
@@ -525,7 +528,8 @@ task_process_status handleSaiCreateStatus(sai_api_t api, sai_status_t status, vo
                 default:
                     SWSS_LOG_ERROR("Encountered failure in create operation, exiting orchagent, SAI API: %s, status: %s",
                                 sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-                    abort();
+                    handleSaiFailure(true);
+                    break;
             }
     }
     return task_need_retry;
@@ -566,8 +570,10 @@ task_process_status handleSaiSetStatus(sai_api_t api, sai_status_t status, void
                 default:
                     SWSS_LOG_ERROR("Encountered failure in set operation, exiting orchagent, SAI API: %s, status: %s",
                             sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-                    abort();
+                    handleSaiFailure(true);
+                    break;
             }
+            break;
         case SAI_API_TUNNEL:
             switch (status)
             {
@@ -578,12 +584,15 @@ task_process_status handleSaiSetStatus(sai_api_t api, sai_status_t status, void
                 default:
                     SWSS_LOG_ERROR("Encountered failure in set operation, exiting orchagent, SAI API: %s, status: %s",
                             sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-                    abort();
+                    handleSaiFailure(true);
+                    break;
             }
+            break;
         default:
             SWSS_LOG_ERROR("Encountered failure in set operation, exiting orchagent, SAI API: %s, status: %s",
                         sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-            abort();
+            handleSaiFailure(true);
+            break;
     }
 
     return task_need_retry;
@@ -611,7 +620,8 @@ task_process_status handleSaiRemoveStatus(sai_api_t api, sai_status_t status, vo
         default:
             SWSS_LOG_ERROR("Encountered failure in remove operation, exiting orchagent, SAI API: %s, status: %s",
                         sai_serialize_api(api).c_str(), sai_serialize_status(status).c_str());
-            abort();
+            handleSaiFailure(true);
+            break;
     }
     return task_need_retry;
 }
@@ -663,3 +673,23 @@ bool parseHandleSaiStatusFailure(task_process_status status)
     }
     return true;
 }
+
+/* Handling SAI failure. Request redis to invoke SAI failure dump and abort if set*/
+void handleSaiFailure(bool abort_on_failure)
+{
+    SWSS_LOG_ENTER();
+
+    sai_attribute_t attr;
+
+    attr.id = SAI_REDIS_SWITCH_ATTR_NOTIFY_SYNCD;
+    attr.value.s32 =  SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP;
+    sai_status_t status = sai_switch_api->set_switch_attribute(gSwitchId, &attr);
+    if (status != SAI_STATUS_SUCCESS)
+    {
+        SWSS_LOG_ERROR("Failed to take sai failure dump %d", status);
+    }
+    if (abort_on_failure)
+    {
+        abort();
+    }
+}
diff --git a/orchagent/saihelper.h b/orchagent/saihelper.h
@@ -18,4 +18,4 @@ task_process_status handleSaiSetStatus(sai_api_t api, sai_status_t status, void
 task_process_status handleSaiRemoveStatus(sai_api_t api, sai_status_t status, void *context = nullptr);
 task_process_status handleSaiGetStatus(sai_api_t api, sai_status_t status, void *context = nullptr);
 bool parseHandleSaiStatusFailure(task_process_status status);
-
+void handleSaiFailure(bool abort_on_failure);
diff --git a/tests/mock_tests/Makefile.am b/tests/mock_tests/Makefile.am
@@ -50,6 +50,7 @@ tests_SOURCES = aclorch_ut.cpp \
                 flowcounterrouteorch_ut.cpp \
                 orchdaemon_ut.cpp \
                 warmrestartassist_ut.cpp \
+                test_failure_handling.cpp \
                 $(top_srcdir)/lib/gearboxutils.cpp \
                 $(top_srcdir)/lib/subintf.cpp \
                 $(top_srcdir)/orchagent/orchdaemon.cpp \

diff --git a/tests/mock_tests/portsorch_ut.cpp b/tests/mock_tests/portsorch_ut.cpp
@@ -9,6 +9,7 @@
 #include "notifier.h"
 #define private public
 #include "pfcactionhandler.h"
+#include <sys/mman.h>
 #undef private
 
 #include <sstream>
@@ -21,6 +22,8 @@ namespace portsorch_test
 
     sai_port_api_t ut_sai_port_api;
     sai_port_api_t *pold_sai_port_api;
+    sai_switch_api_t ut_sai_switch_api;
+    sai_switch_api_t *pold_sai_switch_api;
 
     bool not_support_fetching_fec;
     vector<sai_port_fec_mode_t> mock_port_fec_modes = {SAI_PORT_FEC_MODE_RS, SAI_PORT_FEC_MODE_FC};
@@ -66,9 +69,28 @@ namespace portsorch_test
             _sai_set_port_fec_count++;
             _sai_port_fec_mode = attr[0].value.s32;
         }
+        else if (attr[0].id == SAI_PORT_ATTR_AUTO_NEG_MODE)
+        {
+            /* Simulating failure case */
+            return SAI_STATUS_FAILURE;
+        }
         return pold_sai_port_api->set_port_attribute(port_id, attr);
     }
 
+    uint32_t *_sai_syncd_notifications_count;
+    int32_t *_sai_syncd_notification_event;
+    sai_status_t _ut_stub_sai_set_switch_attribute(
+        _In_ sai_object_id_t switch_id,
+        _In_ const sai_attribute_t *attr)
+    {
+        if (attr[0].id == SAI_REDIS_SWITCH_ATTR_NOTIFY_SYNCD)
+        {
+            *_sai_syncd_notifications_count =+ 1;
+            *_sai_syncd_notification_event = attr[0].value.s32;
+        }
+        return pold_sai_switch_api->set_switch_attribute(switch_id, attr);
+    }
+
     void _hook_sai_port_api()
     {
         ut_sai_port_api = *sai_port_api;
@@ -83,6 +105,19 @@ namespace portsorch_test
         sai_port_api = pold_sai_port_api;
     }
 
+    void _hook_sai_switch_api()
+    {
+        ut_sai_switch_api = *sai_switch_api;
+        pold_sai_switch_api = sai_switch_api;
+        ut_sai_switch_api.set_switch_attribute = _ut_stub_sai_set_switch_attribute;
+        sai_switch_api = &ut_sai_switch_api;
+    }
+
+    void _unhook_sai_switch_api()
+    {
+        sai_switch_api = pold_sai_switch_api;
+    }
+
     sai_queue_api_t ut_sai_queue_api;
     sai_queue_api_t *pold_sai_queue_api;
     int _sai_set_queue_attr_count = 0;
@@ -473,6 +508,52 @@ namespace portsorch_test
         _unhook_sai_port_api();
     }
 
+    TEST_F(PortsOrchTest, PortTestSAIFailureHandling)
+    {
+        _hook_sai_port_api();
+        _hook_sai_switch_api();
+        Table portTable = Table(m_app_db.get(), APP_PORT_TABLE_NAME);
+        std::deque<KeyOpFieldsValuesTuple> entries;
+
+        not_support_fetching_fec = false;
+        // Get SAI default ports to populate DB
+        auto ports = ut_helper::getInitialSaiPorts();
+
+        for (const auto &it : ports)
+        {
+            portTable.set(it.first, it.second);
+        }
+
+        // Set PortConfigDone
+        portTable.set("PortConfigDone", { { "count", to_string(ports.size()) } });
+
+        // refill consumer
+        gPortsOrch->addExistingData(&portTable);
+
+        // Apply configuration :
+        //  create ports
+        static_cast<Orch *>(gPortsOrch)->doTask();
+
+        _sai_syncd_notifications_count = (uint32_t*)mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+        _sai_syncd_notification_event = (int32_t*)mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+        *_sai_syncd_notifications_count = 0;
+
+        entries.push_back({"Ethernet0", "SET",
+                           {
+                               {"autoneg", "on"}
+                           }});
+        auto consumer = dynamic_cast<Consumer *>(gPortsOrch->getExecutor(APP_PORT_TABLE_NAME));
+        consumer->addToSync(entries);
+        ASSERT_DEATH({static_cast<Orch *>(gPortsOrch)->doTask();}, "");
+
+        ASSERT_EQ(*_sai_syncd_notifications_count, 1);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+        _unhook_sai_port_api();
+        _unhook_sai_switch_api();
+    }
+
     TEST_F(PortsOrchTest, PortReadinessColdBoot)
     {
         Table portTable = Table(m_app_db.get(), APP_PORT_TABLE_NAME);

diff --git a/tests/mock_tests/test_failure_handling.cpp b/tests/mock_tests/test_failure_handling.cpp
@@ -0,0 +1,82 @@
+#include "saihelper.h"
+#include "ut_helper.h"
+#include <sys/mman.h>
+
+extern sai_switch_api_t *sai_switch_api;
+
+namespace saifailure_test
+{
+    struct SaiFailureTest : public ::testing::Test
+    {
+    };
+    uint32_t *_sai_syncd_notifications_count;
+    int32_t *_sai_syncd_notification_event;
+    sai_switch_api_t *pold_sai_switch_api;
+    sai_switch_api_t ut_sai_switch_api;
+
+        sai_status_t _ut_stub_sai_set_switch_attribute(
+        _In_ sai_object_id_t switch_id,
+        _In_ const sai_attribute_t *attr)
+    {
+        if (attr[0].id == SAI_REDIS_SWITCH_ATTR_NOTIFY_SYNCD)
+        {
+            *_sai_syncd_notifications_count = *_sai_syncd_notifications_count + 1;
+            *_sai_syncd_notification_event = attr[0].value.s32;
+        }
+        return pold_sai_switch_api->set_switch_attribute(switch_id, attr);
+    }
+
+    void _hook_sai_switch_api()
+    {
+        ut_sai_switch_api = *sai_switch_api;
+        pold_sai_switch_api = sai_switch_api;
+        ut_sai_switch_api.set_switch_attribute = _ut_stub_sai_set_switch_attribute;
+        sai_switch_api = &ut_sai_switch_api;
+    }
+
+    void _unhook_sai_switch_api()
+    {
+        sai_switch_api = pold_sai_switch_api;
+    }
+
+    TEST_F(SaiFailureTest, handleSaiFailure)
+    {
+        _hook_sai_switch_api();
+        _sai_syncd_notifications_count = (uint32_t*)mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+        _sai_syncd_notification_event = (int32_t*)mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+        *_sai_syncd_notifications_count = 0;
+        uint32_t notif_count = *_sai_syncd_notifications_count;
+
+        ASSERT_DEATH({handleSaiCreateStatus(SAI_API_FDB, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiCreateStatus(SAI_API_HOSTIF, SAI_STATUS_INVALID_PARAMETER);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiCreateStatus(SAI_API_PORT, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiSetStatus(SAI_API_HOSTIF, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiSetStatus(SAI_API_PORT, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiSetStatus(SAI_API_TUNNEL, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        ASSERT_DEATH({handleSaiRemoveStatus(SAI_API_LAG, SAI_STATUS_FAILURE);}, "");
+        ASSERT_EQ(*_sai_syncd_notifications_count, ++notif_count);
+        ASSERT_EQ(*_sai_syncd_notification_event, SAI_REDIS_NOTIFY_SYNCD_INVOKE_DUMP);
+
+        _unhook_sai_switch_api();
+    }
+}