synthPoRep in PreferredSeal..()

chain/actors/builtin/miner/miner.go

@@ -214,7 +214,7 @@ type Partition interface {
 
 type SectorOnChainInfo = minertypes.SectorOnChainInfo
 
-func PreferredSealProofTypeFromWindowPoStType(nver network.Version, proof abi.RegisteredPoStProof) (abi.RegisteredSealProof, error) {
+func PreferredSealProofTypeFromWindowPoStType(nver network.Version, proof abi.RegisteredPoStProof, configWantSynthetic bool) (abi.RegisteredSealProof, error) {
 	// We added support for the new proofs in network version 7, and removed support for the old
 	// ones in network version 8.
 	if nver < network.Version7 {
@@ -234,17 +234,33 @@ func PreferredSealProofTypeFromWindowPoStType(nver network.Version, proof abi.Re
 		}
 	}
 
+	if !configWantSynthetic {
+		switch proof {
+		case abi.RegisteredPoStProof_StackedDrgWindow2KiBV1, abi.RegisteredPoStProof_StackedDrgWindow2KiBV1_1:
+			return abi.RegisteredSealProof_StackedDrg2KiBV1_1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow8MiBV1, abi.RegisteredPoStProof_StackedDrgWindow8MiBV1_1:
+			return abi.RegisteredSealProof_StackedDrg8MiBV1_1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow512MiBV1, abi.RegisteredPoStProof_StackedDrgWindow512MiBV1_1:
+			return abi.RegisteredSealProof_StackedDrg512MiBV1_1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow32GiBV1, abi.RegisteredPoStProof_StackedDrgWindow32GiBV1_1:
+			return abi.RegisteredSealProof_StackedDrg32GiBV1_1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow64GiBV1, abi.RegisteredPoStProof_StackedDrgWindow64GiBV1_1:
+			return abi.RegisteredSealProof_StackedDrg64GiBV1_1, nil
+		default:
+			return -1, xerrors.Errorf("unrecognized window post type: %d", proof)
+		}
+	}
 	switch proof {
 	case abi.RegisteredPoStProof_StackedDrgWindow2KiBV1, abi.RegisteredPoStProof_StackedDrgWindow2KiBV1_1:
-		return abi.RegisteredSealProof_StackedDrg2KiBV1_1, nil
+		return abi.RegisteredSealProof_StackedDrg2KiBV1_1_Feat_SyntheticPoRep, nil
 	case abi.RegisteredPoStProof_StackedDrgWindow8MiBV1, abi.RegisteredPoStProof_StackedDrgWindow8MiBV1_1:
-		return abi.RegisteredSealProof_StackedDrg8MiBV1_1, nil
+		return abi.RegisteredSealProof_StackedDrg8MiBV1_1_Feat_SyntheticPoRep, nil
 	case abi.RegisteredPoStProof_StackedDrgWindow512MiBV1, abi.RegisteredPoStProof_StackedDrgWindow512MiBV1_1:
-		return abi.RegisteredSealProof_StackedDrg512MiBV1_1, nil
+		return abi.RegisteredSealProof_StackedDrg512MiBV1_1_Feat_SyntheticPoRep, nil
 	case abi.RegisteredPoStProof_StackedDrgWindow32GiBV1, abi.RegisteredPoStProof_StackedDrgWindow32GiBV1_1:
-		return abi.RegisteredSealProof_StackedDrg32GiBV1_1, nil
+		return abi.RegisteredSealProof_StackedDrg32GiBV1_1_Feat_SyntheticPoRep, nil
 	case abi.RegisteredPoStProof_StackedDrgWindow64GiBV1, abi.RegisteredPoStProof_StackedDrgWindow64GiBV1_1:
-		return abi.RegisteredSealProof_StackedDrg64GiBV1_1, nil
+		return abi.RegisteredSealProof_StackedDrg64GiBV1_1_Feat_SyntheticPoRep, nil
 	default:
 		return -1, xerrors.Errorf("unrecognized window post type: %d", proof)
 	}

chain/actors/builtin/miner/utils.go

@@ -49,25 +49,49 @@ func SealProofTypeFromSectorSize(ssize abi.SectorSize, nv network.Version, synth
 			return 0, xerrors.Errorf("unsupported sector size for miner: %v", ssize)
 		}
 	case nv >= network.Version7:
+		var v abi.RegisteredSealProof
 		switch ssize {
 		case 2 << 10:
-			return abi.RegisteredSealProof_StackedDrg2KiBV1_1, nil
+			v = abi.RegisteredSealProof_StackedDrg2KiBV1_1
 		case 8 << 20:
-			return abi.RegisteredSealProof_StackedDrg8MiBV1_1, nil
+			v = abi.RegisteredSealProof_StackedDrg8MiBV1_1
 		case 512 << 20:
-			return abi.RegisteredSealProof_StackedDrg512MiBV1_1, nil
+			v = abi.RegisteredSealProof_StackedDrg512MiBV1_1
 		case 32 << 30:
-			return abi.RegisteredSealProof_StackedDrg32GiBV1_1, nil
+			v = abi.RegisteredSealProof_StackedDrg32GiBV1_1
 		case 64 << 30:
-			return abi.RegisteredSealProof_StackedDrg64GiBV1_1, nil
+			v = abi.RegisteredSealProof_StackedDrg64GiBV1_1
 		default:
 			return 0, xerrors.Errorf("unsupported sector size for miner: %v", ssize)
 		}
+
+		if synthetic {
+			return toSynthetic(v)
+		} else {
+			return v, nil
+		}
 	}
 
 	return 0, xerrors.Errorf("unsupported network version")
 }
 
+func toSynthetic(in abi.RegisteredSealProof) (abi.RegisteredSealProof, error) {
+	switch in {
+	case abi.RegisteredSealProof_StackedDrg2KiBV1_1:
+		return abi.RegisteredSealProof_StackedDrg2KiBV1_1_Feat_SyntheticPoRep, nil
+	case abi.RegisteredSealProof_StackedDrg8MiBV1_1:
+		return abi.RegisteredSealProof_StackedDrg8MiBV1_1_Feat_SyntheticPoRep, nil
+	case abi.RegisteredSealProof_StackedDrg512MiBV1_1:
+		return abi.RegisteredSealProof_StackedDrg512MiBV1_1_Feat_SyntheticPoRep, nil
+	case abi.RegisteredSealProof_StackedDrg32GiBV1_1:
+		return abi.RegisteredSealProof_StackedDrg32GiBV1_1_Feat_SyntheticPoRep, nil
+	case abi.RegisteredSealProof_StackedDrg64GiBV1_1:
+		return abi.RegisteredSealProof_StackedDrg64GiBV1_1_Feat_SyntheticPoRep, nil
+	default:
+		return 0, xerrors.Errorf("unsupported conversion to synthetic: %v", in)
+	}
+}
+
 // WindowPoStProofTypeFromSectorSize returns preferred post proof type for creating
 // new miner actors and new sectors
 func WindowPoStProofTypeFromSectorSize(ssize abi.SectorSize, nv network.Version) (abi.RegisteredPoStProof, error) {

chain/gen/genesis/genesis.go

@@ -578,7 +578,7 @@ func MakeGenesisBlock(ctx context.Context, j journal.Journal, bs bstore.Blocksto
 	}
 
 	// setup Storage Miners
-	stateroot, err = SetupStorageMiners(ctx, cs, sys, stateroot, template.Miners, template.NetworkVersion)
+	stateroot, err = SetupStorageMiners(ctx, cs, sys, stateroot, template.Miners, template.NetworkVersion, false)
 	if err != nil {
 		return nil, xerrors.Errorf("setup miners failed: %w", err)
 	}

chain/gen/genesis/miners.go

@@ -78,7 +78,7 @@ func mkFakedSigSyscalls(base vm.SyscallBuilder) vm.SyscallBuilder {
 }
 
 // Note: Much of this is brittle, if the methodNum / param / return changes, it will break things
-func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sys vm.SyscallBuilder, sroot cid.Cid, miners []genesis.Miner, nv network.Version) (cid.Cid, error) {
+func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sys vm.SyscallBuilder, sroot cid.Cid, miners []genesis.Miner, nv network.Version, synthetic bool) (cid.Cid, error) {
 
 	cst := cbor.NewCborStore(cs.StateBlockstore())
 	av, err := actorstypes.VersionForNetwork(nv)
@@ -131,7 +131,7 @@ func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sys vm.Syscal
 		i := i
 		m := m
 
-		spt, err := miner.SealProofTypeFromSectorSize(m.SectorSize, nv)
+		spt, err := miner.SealProofTypeFromSectorSize(m.SectorSize, nv, synthetic)
 		if err != nil {
 			return cid.Undef, err
 		}

cmd/lotus-bench/main.go

@@ -827,7 +827,7 @@ func bps(sectorSize abi.SectorSize, sectorNum int, d time.Duration) string {
 }
 
 func spt(ssize abi.SectorSize) abi.RegisteredSealProof {
-	spt, err := miner.SealProofTypeFromSectorSize(ssize, build.TestNetworkVersion)
+	spt, err := miner.SealProofTypeFromSectorSize(ssize, build.TestNetworkVersion, false)
 	if err != nil {
 		panic(err)
 	}

cmd/lotus-seed/main.go

@@ -137,7 +137,9 @@ var preSealCmd = &cli.Command{
 			nv = network.Version(c.Uint64("network-version"))
 		}
 
-		spt, err := miner.SealProofTypeFromSectorSize(sectorSize, nv)
+		var synthetic = false // there's little reason to have this for a seed.
+
+		spt, err := miner.SealProofTypeFromSectorSize(sectorSize, nv, synthetic)
 		if err != nil {
 			return err
 		}

itests/migration_test.go

@@ -301,7 +301,7 @@ func TestMigrationNV17(t *testing.T) {
 	minerInfo, err := testClient.StateMinerInfo(ctx, testMiner.ActorAddr, types.EmptyTSK)
 	require.NoError(t, err)
 
-	spt, err := miner.SealProofTypeFromSectorSize(minerInfo.SectorSize, network.Version17)
+	spt, err := miner.SealProofTypeFromSectorSize(minerInfo.SectorSize, network.Version17, false)
 	require.NoError(t, err)
 
 	preCommitParams := miner9.PreCommitSectorParams{