builder gas limit & some refactoring (#6583)

* Cache gas_limit

* Payload Parameters Refactor

* Enforce Proposer Gas Limit

* Fixed and Added New Tests

* Fix Beacon Chain Tests

beacon_node/beacon_chain/src/execution_payload.rs

@@ -14,7 +14,7 @@ use crate::{
 };
 use execution_layer::{
     BlockProposalContents, BlockProposalContentsType, BuilderParams, NewPayloadRequest,
-    PayloadAttributes, PayloadStatus,
+    PayloadAttributes, PayloadParameters, PayloadStatus,
 };
 use fork_choice::{InvalidationOperation, PayloadVerificationStatus};
 use proto_array::{Block as ProtoBlock, ExecutionStatus};
@@ -375,8 +375,9 @@ pub fn get_execution_payload<T: BeaconChainTypes>(
     let timestamp =
         compute_timestamp_at_slot(state, state.slot(), spec).map_err(BeaconStateError::from)?;
     let random = *state.get_randao_mix(current_epoch)?;
-    let latest_execution_payload_header_block_hash =
-        state.latest_execution_payload_header()?.block_hash();
+    let latest_execution_payload_header = state.latest_execution_payload_header()?;
+    let latest_execution_payload_header_block_hash = latest_execution_payload_header.block_hash();
+    let latest_execution_payload_header_gas_limit = latest_execution_payload_header.gas_limit();
     let withdrawals = match state {
         &BeaconState::Capella(_) | &BeaconState::Deneb(_) | &BeaconState::Electra(_) => {
             Some(get_expected_withdrawals(state, spec)?.0.into())
@@ -406,6 +407,7 @@ pub fn get_execution_payload<T: BeaconChainTypes>(
                     random,
                     proposer_index,
                     latest_execution_payload_header_block_hash,
+                    latest_execution_payload_header_gas_limit,
                     builder_params,
                     withdrawals,
                     parent_beacon_block_root,
@@ -443,6 +445,7 @@ pub async fn prepare_execution_payload<T>(
     random: Hash256,
     proposer_index: u64,
     latest_execution_payload_header_block_hash: ExecutionBlockHash,
+    latest_execution_payload_header_gas_limit: u64,
     builder_params: BuilderParams,
     withdrawals: Option<Vec<Withdrawal>>,
     parent_beacon_block_root: Option<Hash256>,
@@ -526,13 +529,20 @@ where
         parent_beacon_block_root,
     );
 
+    let target_gas_limit = execution_layer.get_proposer_gas_limit(proposer_index).await;
+    let payload_parameters = PayloadParameters {
+        parent_hash,
+        parent_gas_limit: latest_execution_payload_header_gas_limit,
+        proposer_gas_limit: target_gas_limit,
+        payload_attributes: &payload_attributes,
+        forkchoice_update_params: &forkchoice_update_params,
+        current_fork: fork,
+    };
+
     let block_contents = execution_layer
         .get_payload(
-            parent_hash,
-            &payload_attributes,
-            forkchoice_update_params,
+            payload_parameters,
             builder_params,
-            fork,
             &chain.spec,
             builder_boost_factor,
             block_production_version,

beacon_node/beacon_chain/tests/payload_invalidation.rs

@@ -986,10 +986,13 @@ async fn payload_preparation() {
     // Provide preparation data to the EL for `proposer`.
     el.update_proposer_preparation(
         Epoch::new(1),
-        &[ProposerPreparationData {
-            validator_index: proposer as u64,
-            fee_recipient,
-        }],
+        [(
+            &ProposerPreparationData {
+                validator_index: proposer as u64,
+                fee_recipient,
+            },
+            &None,
+        )],
     )
     .await;
 
@@ -1119,10 +1122,13 @@ async fn payload_preparation_before_transition_block() {
     // Provide preparation data to the EL for `proposer`.
     el.update_proposer_preparation(
         Epoch::new(0),
-        &[ProposerPreparationData {
-            validator_index: proposer as u64,
-            fee_recipient,
-        }],
+        [(
+            &ProposerPreparationData {
+                validator_index: proposer as u64,
+                fee_recipient,
+            },
+            &None,
+        )],
     )
     .await;