Perftest: Add print in case blueflame is not supported

Warn if blueflame is not supported, as it can impact latency.
Adding the print to all latency tests.

Signed-off-by: Maor Gottlieb <[email protected]>

Author: maorgottlieb

configure.ac

@@ -170,6 +170,14 @@ if [test $HAVE_DCS = yes] && [test $HAVE_MLX5DV = yes]; then
         AC_DEFINE([HAVE_DCS], [1], [Have DCS support])
 fi
 
+AC_TRY_LINK([
+#include <infiniband/mlx5dv.h>],
+	[int x = MLX5DV_CONTEXT_FLAGS_BLUEFLAME;],[HAVE_MLX5DV_BF_FLAG=yes], [HAVE_MLX5DV_BF_FLAG=no])
+AM_CONDITIONAL([HAVE_MLX5DV_BF_FLAG],[test "x$HAVE_MLX5DV_BF_FLAG" = "xyes"])
+if [test $HAVE_MLX5DV_BF_FLAG = yes] && [test $HAVE_MLX5DV = yes]; then
+	AC_DEFINE([HAVE_MLX5DV_BF_FLAG], [1], [Have BF indication support])
+fi
+
 AC_TRY_LINK([
 #include <infiniband/mlx5dv.h>],
 	[int x = MLX5DV_CONTEXT_MASK_OOO_RECV_WRS;],[HAVE_OOO_RECV_WRS=yes], [HAVE_OOO_RECV_WRS=no])

src/atomic_lat.c

@@ -179,6 +179,7 @@ int main(int argc, char *argv[])
 
 	/* Print basic test information. */
 	ctx_print_test_info(&user_param);
+	check_bf_support(&ctx);
 
 	/* shaking hands and gather the other side info. */
 	if (ctx_hand_shake(&user_comm,my_dest,rem_dest)) {

src/perftest_resources.c

@@ -2011,6 +2011,28 @@ static int verify_ooo_settings(struct pingpong_context *ctx,
 	}
 }
 #endif
+
+void check_bf_support(struct pingpong_context *ctx)
+{
+	if (get_device_vendor(ctx->context) != 0x02c9)
+		return;
+
+	#ifdef HAVE_MLX5DV_BF_FLAG
+	struct mlx5dv_context ctx_dv;
+	int ret;
+
+	ret = mlx5dv_query_device(ctx->context, &ctx_dv);
+	if (ret) {
+		fprintf(stderr, "Failed to query device capabilities, ret=%d\n", ret);
+		return;
+	}
+	if (!(ctx_dv.flags & MLX5DV_CONTEXT_FLAGS_BLUEFLAME)) {
+		fprintf(stderr, "Warning: Blueflame is not supported in the system\n");
+		printf(RESULT_LINE);
+	}
+	#endif
+}
+
 int ctx_init(struct pingpong_context *ctx, struct perftest_parameters *user_param)
 {
 	int i;

src/perftest_resources.h

@@ -1021,4 +1021,6 @@ int rdma_cm_destroy_cma(struct pingpong_context *ctx,
 */
 int error_handler(char *error_message);
 
+void check_bf_support(struct pingpong_context *ctx);
+
 #endif /* PERFTEST_RESOURCES_H */

src/read_lat.c

@@ -179,6 +179,7 @@ int main(int argc, char *argv[])
 
 	/* Print basic test information. */
 	ctx_print_test_info(&user_param);
+	check_bf_support(&ctx);
 
 	/*  shaking hands and gather the other side info. */
 	if (ctx_hand_shake(&user_comm,my_dest,rem_dest)) {

src/send_lat.c

@@ -299,6 +299,7 @@ int main(int argc, char *argv[])
 
 	/* Print basic test information. */
 	ctx_print_test_info(&user_param);
+	check_bf_support(&ctx);
 
 	for (i=0; i < user_param.num_of_qps; i++) {
 

src/write_lat.c

@@ -187,6 +187,7 @@ int main(int argc, char *argv[])
 
 	/* Print basic test information. */
 	ctx_print_test_info(&user_param);
+	check_bf_support(&ctx);
 
 	/* shaking hands and gather the other side info. */
 	if (ctx_hand_shake(&user_comm,my_dest,rem_dest)) {