[PATCH] test/debug: fix test failure on ppc64

[luca.boccassi@gmail.com]

From: Luca Boccassi <bluca@debian.org>

1001s Running binary with argv[]:'/tmp/autopkgtest.LvdXhc/build.6vT/src/build/app/dpdk-test' '--file-prefix=debug' '-l' '0' '--no-huge' '-m' '2048'
<...>
1001s EAL: Cannot use IOVA as 'PA' since physical addresses are not available

This is similar to 6b07762e949036389030cf5a1a9bb8a1e4d6ee2d,
on ppc64 iova-mode=pa is the default, but it doesn't work with --no-huge,
so add --iova-mode=va to the test arguments.

Fixes: 2b403dd8fb37 ("test/debug: fix crash with mlx5 devices")
Cc: stable@dpdk.org

Signed-off-by: Luca Boccassi <bluca@debian.org>
---
 app/test/test_debug.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/test/test_debug.c b/app/test/test_debug.c
index fe5dd5b02d..5ff9068e2b 100644
--- a/app/test/test_debug.c
+++ b/app/test/test_debug.c
@@ -46,7 +46,7 @@ test_debug(void)
  * ==========
  */
 
-static const char *test_args[7];
+static const char *test_args[8];
 
 int
 test_panic(void)
@@ -158,10 +158,17 @@ test_debug(void)
 		test_args[4] = "";
 		test_args[5] = "";
 		test_args[6] = "";
+		test_args[7] = "";
 	} else {
 		test_args[4] = "--no-huge";
 		test_args[5] = "-m";
 		test_args[6] = "2048";
+#ifdef RTE_ARCH_PPC_64
+		/* iova=pa is the default, but fails on ppc64 with --no-huge */
+		test_args[7] = "--iova-mode=va";
+#else
+		test_args[7] = "";
+#endif
 	}
 
 	rte_dump_stack();
-- 
2.47.3