Start adding llfc flow control thresholds

Summary: As titled Reviewed By: shri-khare, srikrishnagopu Differential Revision: D64010121 fbshipit-source-id: d89bbd39310e891d60a1ea8505b340aa4ab9b4e9
facebook · Oct 8, 2024 · d30c05e · d30c05e
1 parent f841b94
commit d30c05e
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Showing 6 changed files with 31 additions and 0 deletions.
diff --git a/fboss/agent/hw/sai/api/SwitchApi.h b/fboss/agent/hw/sai/api/SwitchApi.h
@@ -552,6 +552,13 @@ struct SaiSwitchTraits {
         std::vector<sai_uint32_t>,
         AttributeReachabilityGroupList,
         SaiU32ListDefault>;
+    struct AttributeFabricLinkLayerFlowControlThreshold {
+      std::optional<sai_attr_id_t> operator()();
+    };
+    using FabricLinkLayerFlowControlThreshold = SaiExtensionAttribute<
+        std::vector<sai_uint32_t>,
+        AttributeFabricLinkLayerFlowControlThreshold,
+        SaiU32ListDefault>;
   };
   using AdapterKey = SwitchSaiId;
   using AdapterHostKey = std::monostate;

diff --git a/fboss/agent/hw/sai/api/bcm/SwitchApi.cpp b/fboss/agent/hw/sai/api/bcm/SwitchApi.cpp
@@ -295,4 +295,12 @@ SaiSwitchTraits::Attributes::AttributeReachabilityGroupList::operator()() {
 #endif
   return std::nullopt;
 }
+
+std::optional<sai_attr_id_t> SaiSwitchTraits::Attributes::
+    AttributeFabricLinkLayerFlowControlThreshold::operator()() {
+#if defined(BRCM_SAI_SDK_DNX) && defined(BRCM_SAI_SDK_GTE_12_0)
+  return SAI_SWITCH_ATTR_FABRIC_LLFC_THRESHOLD;
+#endif
+  return std::nullopt;
+}
 } // namespace facebook::fboss
diff --git a/fboss/agent/hw/sai/api/fake/FakeSaiExtensions.cpp b/fboss/agent/hw/sai/api/fake/FakeSaiExtensions.cpp
@@ -256,4 +256,10 @@ std::optional<sai_attr_id_t>
 SaiSwitchTraits::Attributes::AttributeReachabilityGroupList::operator()() {
   return SAI_SWITCH_ATTR_REACHABILITY_GROUP_LIST;
 }
+
+std::optional<sai_attr_id_t> SaiSwitchTraits::Attributes::
+    AttributeFabricLinkLayerFlowControlThreshold::operator()() {
+  return SAI_SWITCH_ATTR_FABRIC_LLFC_THRESHOLD;
+}
+
 } // namespace facebook::fboss
diff --git a/fboss/agent/hw/sai/api/fake/saifakeextensions.h b/fboss/agent/hw/sai/api/fake/saifakeextensions.h
@@ -50,6 +50,7 @@ typedef enum _sai_switch_extensions_attr_t {
   SAI_SWITCH_ATTR_VOQ_LATENCY_MIN_LEVEL_2,
   SAI_SWITCH_ATTR_VOQ_LATENCY_MAX_LEVEL_2,
   SAI_SWITCH_ATTR_REACHABILITY_GROUP_LIST,
+  SAI_SWITCH_ATTR_FABRIC_LLFC_THRESHOLD,
 } sai_switch_extensions_attr_t;
 
 typedef enum _sai_tam_event_extensions_attr_t {

diff --git a/fboss/agent/hw/sai/api/oss/SwitchApi.cpp b/fboss/agent/hw/sai/api/oss/SwitchApi.cpp
@@ -157,4 +157,9 @@ std::optional<sai_attr_id_t>
 SaiSwitchTraits::Attributes::AttributeReachabilityGroupList::operator()() {
   return std::nullopt;
 }
+
+std::optional<sai_attr_id_t> SaiSwitchTraits::Attributes::
+    AttributeFabricLinkLayerFlowControlThreshold::operator()() {
+  return std::nullopt;
+}
 } // namespace facebook::fboss
diff --git a/fboss/agent/hw/sai/api/tajo/SwitchApi.cpp b/fboss/agent/hw/sai/api/tajo/SwitchApi.cpp
@@ -179,4 +179,8 @@ std::optional<sai_attr_id_t>
 SaiSwitchTraits::Attributes::AttributeReachabilityGroupList::operator()() {
   return std::nullopt;
 }
+std::optional<sai_attr_id_t> SaiSwitchTraits::Attributes::
+    AttributeFabricLinkLayerFlowControlThreshold::operator()() {
+  return std::nullopt;
+}
 } // namespace facebook::fboss