sector import: Plumb sector download task canfig

node/config/def.go

@@ -146,6 +146,7 @@ func DefaultStorageMiner() *StorageMiner {
 		},
 
 		Storage: SealerConfig{
+			AllowSectorDownload:      true,
 			AllowAddPiece:            true,
 			AllowPreCommit1:          true,
 			AllowPreCommit2:          true,

node/config/doc_gen.go

@@ -796,11 +796,17 @@ This parameter is ONLY applicable if the retrieval pricing policy strategy has b
 
 			Comment: ``,
 		},
+		{
+			Num: "AllowSectorDownload",
+			Type: "bool",
+
+			Comment: ``,
+		},
 		{
 			Name: "AllowAddPiece",
 			Type: "bool",
 
-			Comment: `Local worker config`,
+			Comment: ``,
 		},
 		{
 			Name: "AllowPreCommit1",

node/config/storage.go

@@ -54,6 +54,7 @@ func WriteStorageFile(path string, config paths.StorageConfig) error {
 func (c *StorageMiner) StorageManager() sealer.Config {
 	return sealer.Config{
 		ParallelFetchLimit:       c.Storage.ParallelFetchLimit,
+		AllowSectorDownload:      c.Storage.AllowSectorDownload,
 		AllowAddPiece:            c.Storage.AllowAddPiece,
 		AllowPreCommit1:          c.Storage.AllowPreCommit1,
 		AllowPreCommit2:          c.Storage.AllowPreCommit2,

node/config/types.go

@@ -409,7 +409,7 @@ type SealingConfig struct {
 type SealerConfig struct {
 	ParallelFetchLimit int
 
-	// Local worker config
+	AllowSectorDownload      bool
 	AllowAddPiece            bool
 	AllowPreCommit1          bool
 	AllowPreCommit2          bool