Adding PARALLEL_MODE to be used by the simulator.

Author: MatiasBjorling

.project

@@ -31,7 +31,7 @@
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.buildLocation</key>
-					<value>${workspace_loc:/FTL/BAST}</value>
+					<value>${workspace_loc:/FTL/Page}</value>
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.cleanBuildTarget</key>

ssd.conf

@@ -93,3 +93,6 @@ FAST_LOG_PAGE_LIMIT 1024
 
 # Number of pages allowed to be in DFTL Cached Mapping Table.
 CACHE_DFTL_LIMIT 512
+
+# 0 -> Normal behavior, 1 -> Striping, 2 -> Logical address space parallelism
+PARALLELISM_MODE 0

ssd.h

@@ -143,6 +143,11 @@ extern const uint FAST_LOG_PAGE_LIMIT;
  */
 extern const uint CACHE_DFTL_LIMIT;
 
+/*
+ * Parallelism mode
+ */
+extern const uint PARALLELISM_MODE = 0;
+
 /*
  * Memory area to support pages with data.
  */
@@ -284,7 +289,7 @@ class Stats
 	long numGCWrite;
 	long numGCErase;
 
-	// Wearleveling
+	// Wear-leveling
 	long numWLRead;
 	long numWLWrite;
 	long numWLErase;

ssd_config.cpp

@@ -153,6 +153,14 @@ uint FAST_LOG_PAGE_LIMIT = 4;
  */
 uint CACHE_DFTL_LIMIT = 8;
 
+/*
+ * Parallelism mode.
+ * 0 -> Normal
+ * 1 -> Striping
+ * 2 -> Logical Address Space Parallelism (LASP)
+ */
+uint PARALLELISM_MODE = 0;
+
 void load_entry(char *name, double value, uint line_number) {
 	/* cheap implementation - go through all possibilities and match entry */
 	if (!strcmp(name, "RAM_READ_DELAY"))
@@ -205,6 +213,8 @@ void load_entry(char *name, double value, uint line_number) {
 		FAST_LOG_PAGE_LIMIT = value;
 	else if (!strcmp(name, "CACHE_DFTL_LIMIT"))
 		CACHE_DFTL_LIMIT = value;
+	else if (!strcmp(name, "PARALLELISM_MODE"))
+		PARALLELISM_MODE = value;
 	else
 		fprintf(stderr, "Config file parsing error on line %u\n", line_number);
 	return;
@@ -270,6 +280,7 @@ void print_config(FILE *stream) {
 	fprintf(stream, "PAGE_ENABLE_DATA: %i\n", PAGE_ENABLE_DATA);
 	fprintf(stream, "MAP_DIRECTORY_SIZE: %i\n", MAP_DIRECTORY_SIZE);
 	fprintf(stream, "FTL_IMPLEMENTATION: %i\n", FTL_IMPLEMENTATION);
+	fprintf(stream, "PARALLELISM_MODE: %i\n", PARALLELISM_MODE);
 	return;
 }