Add in security support, make payload protos configurable
Have not yet added tests with security support, coming soon
diff --git a/Makefile b/Makefile
index 39bf687..9e2b5e0 100644
--- a/Makefile
+++ b/Makefile
@@ -3768,6 +3768,21 @@
 endif
 
 ifeq ($(NO_PROTOC),true)
+$(GENDIR)/test/proto/benchmarks/payloads.pb.cc: protoc_dep_error
+$(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc: protoc_dep_error
+else
+$(GENDIR)/test/proto/benchmarks/payloads.pb.cc: test/proto/benchmarks/payloads.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[PROTOC]  Generating protobuf CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc: test/proto/benchmarks/payloads.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+endif
+
+ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/proto/benchmarks/services.pb.cc: protoc_dep_error
 $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc: protoc_dep_error
 else
@@ -5420,6 +5435,7 @@
 LIBQPS_SRC = \
     $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc \
     $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc \
+    $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc \
     $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc \
     $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc \
     $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc \
@@ -5476,16 +5492,16 @@
 -include $(LIBQPS_OBJS:.o=.dep)
 endif
 endif
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_async.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_sync.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/perf_db_client.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/qps_worker.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_async.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_sync.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/util/benchmark_config.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_async.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_sync.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/perf_db_client.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/qps_worker.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_async.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_sync.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/util/benchmark_config.o: $(GENDIR)/test/proto/messages.pb.cc $(GENDIR)/test/proto/messages.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/control.pb.cc $(GENDIR)/test/proto/benchmarks/control.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.pb.cc $(GENDIR)/test/proto/benchmarks/payloads.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/services.pb.cc $(GENDIR)/test/proto/benchmarks/services.grpc.pb.cc $(GENDIR)/test/proto/benchmarks/stats.pb.cc $(GENDIR)/test/proto/benchmarks/stats.grpc.pb.cc $(GENDIR)/test/cpp/qps/perf_db.pb.cc $(GENDIR)/test/cpp/qps/perf_db.grpc.pb.cc
 
 
 LIBGRPC_CSHARP_EXT_SRC = \
diff --git a/build.yaml b/build.yaml
index 5561818..fba87cc 100644
--- a/build.yaml
+++ b/build.yaml
@@ -753,6 +753,7 @@
   src:
   - test/proto/messages.proto
   - test/proto/benchmarks/control.proto
+  - test/proto/benchmarks/payloads.proto
   - test/proto/benchmarks/services.proto
   - test/proto/benchmarks/stats.proto
   - test/cpp/qps/perf_db.proto
diff --git a/test/cpp/qps/async_streaming_ping_pong_test.cc b/test/cpp/qps/async_streaming_ping_pong_test.cc
index c66aa19..338eebe 100644
--- a/test/cpp/qps/async_streaming_ping_pong_test.cc
+++ b/test/cpp/qps/async_streaming_ping_pong_test.cc
@@ -52,17 +52,15 @@
 
   ClientConfig client_config;
   client_config.set_client_type(ASYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1);
   client_config.set_client_channels(1);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_async_client_threads(1);
   client_config.set_rpc_type(STREAMING);
   client_config.mutable_load_params()->mutable_closed_loop();
 
   ServerConfig server_config;
   server_config.set_server_type(ASYNC_SERVER);
-  server_config.set_use_tls(false);
   server_config.set_async_server_threads(1);
 
   const auto result =
diff --git a/test/cpp/qps/async_unary_ping_pong_test.cc b/test/cpp/qps/async_unary_ping_pong_test.cc
index efc599d..c17ea6c 100644
--- a/test/cpp/qps/async_unary_ping_pong_test.cc
+++ b/test/cpp/qps/async_unary_ping_pong_test.cc
@@ -52,17 +52,15 @@
 
   ClientConfig client_config;
   client_config.set_client_type(ASYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1);
   client_config.set_client_channels(1);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_async_client_threads(1);
   client_config.set_rpc_type(UNARY);
   client_config.mutable_load_params()->mutable_closed_loop();
 
   ServerConfig server_config;
   server_config.set_server_type(ASYNC_SERVER);
-  server_config.set_use_tls(false);
   server_config.set_async_server_threads(1);
 
   const auto result =
diff --git a/test/cpp/qps/client.h b/test/cpp/qps/client.h
index 961e714..507642b 100644
--- a/test/cpp/qps/client.h
+++ b/test/cpp/qps/client.h
@@ -41,6 +41,7 @@
 #include "test/cpp/qps/interarrival.h"
 #include "test/cpp/qps/timer.h"
 #include "test/cpp/util/create_test_channel.h"
+#include "test/proto/benchmarks/payloads.grpc.pb.h"
 #include "test/proto/benchmarks/services.grpc.pb.h"
 
 namespace grpc {
@@ -75,8 +76,20 @@
       channels_[i].init(config.server_targets(i % config.server_targets_size()),
                         config);
     }
-    request_.set_response_type(grpc::testing::PayloadType::COMPRESSABLE);
-    request_.set_response_size(config.payload_size());
+    if (config.payload_config().has_bytebuf_params()) {
+      GPR_ASSERT(false); // not yet implemented
+    } else if (config.payload_config().has_simple_params()) {
+      request_.set_response_type(grpc::testing::PayloadType::COMPRESSABLE);
+      request_.set_response_size(config.payload_config().simple_params().resp_size());
+      request_.mutable_payload()->set_type(grpc::testing::PayloadType::COMPRESSABLE);
+      int size = config.payload_config().simple_params().req_size();
+      std::unique_ptr<char[]> body(new char[size]);
+      request_.mutable_payload()->set_body(body.get(), size);
+    } else if (config.payload_config().has_complex_params()) {
+      GPR_ASSERT(false); // not yet implemented
+    } else {
+      GPR_ASSERT(false); // badly configured
+    }
   }
   virtual ~Client() {}
 
@@ -131,7 +144,11 @@
       // We have to use a 2-phase init like this with a default
       // constructor followed by an initializer function to make
       // old compilers happy with using this in std::vector
-      channel_ = CreateTestChannel(target, config.use_tls());
+      channel_ =
+	CreateTestChannel(target,
+			  config.security_params().server_host_override(),
+			  config.has_security_params(),
+			  !config.security_params().use_test_ca());
       stub_ = BenchmarkService::NewStub(channel_);
     }
     Channel* get_channel() { return channel_.get(); }
diff --git a/test/cpp/qps/qps_driver.cc b/test/cpp/qps/qps_driver.cc
index a314be6..e5d60d9 100644
--- a/test/cpp/qps/qps_driver.cc
+++ b/test/cpp/qps/qps_driver.cc
@@ -50,7 +50,6 @@
 DEFINE_int32(local_workers, 0, "Number of local workers to start");
 
 // Common config
-DEFINE_bool(use_tls, false, "Use TLS");
 DEFINE_string(rpc_type, "UNARY", "Type of RPC: UNARY or STREAMING");
 
 // Server config
@@ -61,7 +60,10 @@
 DEFINE_int32(outstanding_rpcs_per_channel, 1,
              "Number of outstanding rpcs per channel");
 DEFINE_int32(client_channels, 1, "Number of client channels");
-DEFINE_int32(payload_size, 1, "Payload size");
+
+DEFINE_int32(simple_req_size, -1, "Simple proto request payload size");
+DEFINE_int32(simple_resp_size, -1, "Simple proto response payload size");
+
 DEFINE_string(client_type, "SYNC_CLIENT", "Client type");
 DEFINE_int32(async_client_threads, 1, "Async client threads");
 
@@ -93,11 +95,22 @@
 
   ClientConfig client_config;
   client_config.set_client_type(client_type);
-  client_config.set_use_tls(FLAGS_use_tls);
   client_config.set_outstanding_rpcs_per_channel(
       FLAGS_outstanding_rpcs_per_channel);
   client_config.set_client_channels(FLAGS_client_channels);
-  client_config.set_payload_size(FLAGS_payload_size);
+
+  // Decide which type to use based on the response type
+  if (FLAGS_simple_resp_size >= 0) {
+    auto params = client_config.mutable_payload_config()->mutable_simple_params();
+    params->set_resp_size(FLAGS_simple_resp_size);
+    if (FLAGS_simple_req_size >= 0) {
+      params->set_req_size(FLAGS_simple_req_size);
+    }
+  } else {
+    GPR_ASSERT(false); // not yet implemented
+  }
+
+  
   client_config.set_async_client_threads(FLAGS_async_client_threads);
   client_config.set_rpc_type(rpc_type);
 
@@ -123,7 +136,6 @@
 
   ServerConfig server_config;
   server_config.set_server_type(server_type);
-  server_config.set_use_tls(FLAGS_use_tls);
   server_config.set_async_server_threads(FLAGS_async_server_threads);
 
   const auto result = RunScenario(
diff --git a/test/cpp/qps/qps_openloop_test.cc b/test/cpp/qps/qps_openloop_test.cc
index d9f5ffc..c867714 100644
--- a/test/cpp/qps/qps_openloop_test.cc
+++ b/test/cpp/qps/qps_openloop_test.cc
@@ -52,10 +52,9 @@
 
   ClientConfig client_config;
   client_config.set_client_type(ASYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1000);
   client_config.set_client_channels(8);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_async_client_threads(8);
   client_config.set_rpc_type(UNARY);
   client_config.mutable_load_params()->mutable_poisson()->set_offered_load(
@@ -63,7 +62,6 @@
 
   ServerConfig server_config;
   server_config.set_server_type(ASYNC_SERVER);
-  server_config.set_use_tls(false);
   server_config.set_async_server_threads(4);
 
   const auto result =
diff --git a/test/cpp/qps/qps_test.cc b/test/cpp/qps/qps_test.cc
index 770a0d4..c51663a 100644
--- a/test/cpp/qps/qps_test.cc
+++ b/test/cpp/qps/qps_test.cc
@@ -52,17 +52,15 @@
 
   ClientConfig client_config;
   client_config.set_client_type(ASYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1000);
   client_config.set_client_channels(8);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_async_client_threads(8);
   client_config.set_rpc_type(UNARY);
   client_config.mutable_load_params()->mutable_closed_loop();
 
   ServerConfig server_config;
   server_config.set_server_type(ASYNC_SERVER);
-  server_config.set_use_tls(false);
   server_config.set_async_server_threads(8);
 
   const auto result =
diff --git a/test/cpp/qps/qps_test_with_poll.cc b/test/cpp/qps/qps_test_with_poll.cc
deleted file mode 100644
index 153cbd7..0000000
--- a/test/cpp/qps/qps_test_with_poll.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <signal.h>
-
-#include <set>
-
-#include <grpc/support/log.h>
-
-#include "test/cpp/qps/driver.h"
-#include "test/cpp/qps/report.h"
-#include "test/cpp/util/benchmark_config.h"
-
-extern "C" {
-#include "src/core/iomgr/pollset_posix.h"
-}
-
-namespace grpc {
-namespace testing {
-
-static const int WARMUP = 5;
-static const int BENCHMARK = 5;
-
-static void RunQPS() {
-  gpr_log(GPR_INFO, "Running QPS test");
-
-  ClientConfig client_config;
-  client_config.set_client_type(ASYNC_CLIENT);
-  client_config.set_use_tls(false);
-  client_config.set_outstanding_rpcs_per_channel(1000);
-  client_config.set_client_channels(8);
-  client_config.set_payload_size(1);
-  client_config.set_async_client_threads(8);
-  client_config.set_rpc_type(UNARY);
-  client_config.mutable_load_params()->mutable_closed();
-
-  ServerConfig server_config;
-  server_config.set_server_type(ASYNC_SERVER);
-  server_config.set_use_tls(false);
-  server_config.set_threads(4);
-
-  const auto result =
-      RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK, -2);
-
-  GetReporter()->ReportQPSPerCore(*result);
-  GetReporter()->ReportLatency(*result);
-}
-
-}  // namespace testing
-}  // namespace grpc
-
-int main(int argc, char** argv) {
-  grpc::testing::InitBenchmark(&argc, &argv, true);
-
-  grpc_platform_become_multipoller = grpc_poll_become_multipoller;
-
-  signal(SIGPIPE, SIG_IGN);
-  grpc::testing::RunQPS();
-
-  return 0;
-}
diff --git a/test/cpp/qps/server.h b/test/cpp/qps/server.h
index 12bbf1f..f4ae990 100644
--- a/test/cpp/qps/server.h
+++ b/test/cpp/qps/server.h
@@ -35,7 +35,9 @@
 #define TEST_QPS_SERVER_H
 
 #include <grpc/support/cpu.h>
+#include <grpc++/security/server_credentials.h>
 
+#include "test/core/end2end/data/ssl_test_data.h"
 #include "test/core/util/port.h"
 #include "test/cpp/qps/timer.h"
 #include "test/proto/messages.grpc.pb.h"
@@ -86,6 +88,18 @@
 
   int Port() const {return port_;}
   int Cores() const {return gpr_cpu_num_cores();}
+  static std::shared_ptr<ServerCredentials> CreateServerCredentials(const ServerConfig &config) {
+    if (config.has_security_params()) {
+      SslServerCredentialsOptions::PemKeyCertPair pkcp = {test_server1_key,
+							  test_server1_cert};
+      SslServerCredentialsOptions ssl_opts;
+      ssl_opts.pem_root_certs = "";
+      ssl_opts.pem_key_cert_pairs.push_back(pkcp);
+      return SslServerCredentials(ssl_opts);
+    } else {
+      return InsecureServerCredentials();
+    }
+  }
  private:
   int port_;
   std::unique_ptr<Timer> timer_;
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index b4b397a..fed59c0 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -63,7 +63,7 @@
     gpr_join_host_port(&server_address, "::", Port());
 
     ServerBuilder builder;
-    builder.AddListeningPort(server_address, InsecureServerCredentials());
+    builder.AddListeningPort(server_address, Server::CreateServerCredentials(config));
     gpr_free(server_address);
 
     builder.RegisterAsyncService(&async_service_);
diff --git a/test/cpp/qps/server_sync.cc b/test/cpp/qps/server_sync.cc
index feca7e2..c235069 100644
--- a/test/cpp/qps/server_sync.cc
+++ b/test/cpp/qps/server_sync.cc
@@ -91,7 +91,7 @@
     char* server_address = NULL;
 
     gpr_join_host_port(&server_address, "::", Port());
-    builder.AddListeningPort(server_address, InsecureServerCredentials());
+    builder.AddListeningPort(server_address, Server::CreateServerCredentials(config));
     gpr_free(server_address);
 
     builder.RegisterService(&service_);
diff --git a/test/cpp/qps/sync_streaming_ping_pong_test.cc b/test/cpp/qps/sync_streaming_ping_pong_test.cc
index dd3be73..8dbbec1 100644
--- a/test/cpp/qps/sync_streaming_ping_pong_test.cc
+++ b/test/cpp/qps/sync_streaming_ping_pong_test.cc
@@ -52,16 +52,14 @@
 
   ClientConfig client_config;
   client_config.set_client_type(SYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1);
   client_config.set_client_channels(1);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_rpc_type(STREAMING);
   client_config.mutable_load_params()->mutable_closed_loop();
 
   ServerConfig server_config;
   server_config.set_server_type(SYNC_SERVER);
-  server_config.set_use_tls(false);
 
   const auto result =
       RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK, -2);
diff --git a/test/cpp/qps/sync_unary_ping_pong_test.cc b/test/cpp/qps/sync_unary_ping_pong_test.cc
index 2c1d2aa..909529e 100644
--- a/test/cpp/qps/sync_unary_ping_pong_test.cc
+++ b/test/cpp/qps/sync_unary_ping_pong_test.cc
@@ -52,16 +52,14 @@
 
   ClientConfig client_config;
   client_config.set_client_type(SYNC_CLIENT);
-  client_config.set_use_tls(false);
   client_config.set_outstanding_rpcs_per_channel(1);
   client_config.set_client_channels(1);
-  client_config.set_payload_size(1);
+  client_config.mutable_payload_config()->mutable_simple_params()->set_resp_size(1);
   client_config.set_rpc_type(UNARY);
   client_config.mutable_load_params()->mutable_closed_loop();
 
   ServerConfig server_config;
   server_config.set_server_type(SYNC_SERVER);
-  server_config.set_use_tls(false);
 
   const auto result =
       RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK, -2);
diff --git a/test/proto/benchmarks/control.proto b/test/proto/benchmarks/control.proto
index 50c2a31..26a19ea 100644
--- a/test/proto/benchmarks/control.proto
+++ b/test/proto/benchmarks/control.proto
@@ -27,10 +27,9 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// An integration test service that covers all the method signature permutations
-// of unary/streaming requests/responses.
 syntax = "proto3";
 
+import "test/proto/benchmarks/payloads.proto";
 import "test/proto/benchmarks/stats.proto";
 
 package grpc.testing;
@@ -81,17 +80,23 @@
   };
 }
 
+// presence of SecurityParams implies use of TLS
+message SecurityParams {
+    bool use_test_ca = 1;
+    string server_host_override = 2;
+}
+
 message ClientConfig {
   repeated string server_targets = 1;
   ClientType client_type = 2;
-  bool use_tls = 3;
+  SecurityParams security_params = 3;
   int32 outstanding_rpcs_per_channel = 4;
   int32 client_channels = 5;
-  int32 payload_size = 6;
   // only for async client:
   int32 async_client_threads = 7;
   RpcType rpc_type = 8;
   LoadParams load_params = 10;
+  PayloadConfig payload_config = 11;
 }
 
 message ClientStatus {
@@ -112,12 +117,13 @@
 
 message ServerConfig {
   ServerType server_type = 1;
-  bool use_tls = 2;
+  SecurityParams security_params = 2;
   int32 port = 4;
   // only for async server
   int32 async_server_threads = 7;
   // restrict core usage
   int32 core_limit = 8;
+  PayloadConfig payload_config = 9;
 }
 
 message ServerArgs {
diff --git a/test/proto/benchmarks/payloads.proto b/test/proto/benchmarks/payloads.proto
new file mode 100644
index 0000000..ad6c08a
--- /dev/null
+++ b/test/proto/benchmarks/payloads.proto
@@ -0,0 +1,56 @@
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package grpc.testing;
+
+message ByteBufferParams {
+  int32 req_size = 1;
+  int32 resp_size = 2;
+}
+
+message SimpleProtoParams {
+  int32 req_size = 1;
+  int32 resp_size = 2;
+}
+
+message ComplexProtoParams {
+// TODO (vpai): Fill this in once the details of complex, representative
+//              protos are decided
+}
+
+message PayloadConfig {
+  oneof payload {
+    ByteBufferParams bytebuf_params = 1;
+    SimpleProtoParams simple_params = 2;
+    ComplexProtoParams complex_params = 3;
+  }
+}
+
diff --git a/test/proto/benchmarks/stats.proto b/test/proto/benchmarks/stats.proto
index 0a98465..670af33 100644
--- a/test/proto/benchmarks/stats.proto
+++ b/test/proto/benchmarks/stats.proto
@@ -27,8 +27,6 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// An integration test service that covers all the method signature permutations
-// of unary/streaming requests/responses.
 syntax = "proto3";
 
 package grpc.testing;
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 8def62a..eb9a117 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -14651,6 +14651,8 @@
       "test/cpp/util/benchmark_config.h", 
       "test/proto/benchmarks/control.grpc.pb.h", 
       "test/proto/benchmarks/control.pb.h", 
+      "test/proto/benchmarks/payloads.grpc.pb.h", 
+      "test/proto/benchmarks/payloads.pb.h", 
       "test/proto/benchmarks/services.grpc.pb.h", 
       "test/proto/benchmarks/services.pb.h", 
       "test/proto/benchmarks/stats.grpc.pb.h", 
diff --git a/vsprojects/vcxproj/qps/qps.vcxproj b/vsprojects/vcxproj/qps/qps.vcxproj
index 3a85193..9c5a4da 100644
--- a/vsprojects/vcxproj/qps/qps.vcxproj
+++ b/vsprojects/vcxproj/qps/qps.vcxproj
@@ -163,6 +163,14 @@
     </ClCompile>
     <ClInclude Include="..\..\..\test\proto\benchmarks\control.grpc.pb.h">
     </ClInclude>
+    <ClCompile Include="..\..\..\test\proto\benchmarks\payloads.pb.cc">
+    </ClCompile>
+    <ClInclude Include="..\..\..\test\proto\benchmarks\payloads.pb.h">
+    </ClInclude>
+    <ClCompile Include="..\..\..\test\proto\benchmarks\payloads.grpc.pb.cc">
+    </ClCompile>
+    <ClInclude Include="..\..\..\test\proto\benchmarks\payloads.grpc.pb.h">
+    </ClInclude>
     <ClCompile Include="..\..\..\test\proto\benchmarks\services.pb.cc">
     </ClCompile>
     <ClInclude Include="..\..\..\test\proto\benchmarks\services.pb.h">
diff --git a/vsprojects/vcxproj/qps/qps.vcxproj.filters b/vsprojects/vcxproj/qps/qps.vcxproj.filters
index 0b9c2cb..afa7195 100644
--- a/vsprojects/vcxproj/qps/qps.vcxproj.filters
+++ b/vsprojects/vcxproj/qps/qps.vcxproj.filters
@@ -7,6 +7,9 @@
     <ClCompile Include="..\..\..\test\proto\benchmarks\control.proto">
       <Filter>test\proto\benchmarks</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\test\proto\benchmarks\payloads.proto">
+      <Filter>test\proto\benchmarks</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\test\proto\benchmarks\services.proto">
       <Filter>test\proto\benchmarks</Filter>
     </ClCompile>