[LTP] [PATCH v3 1/2] ioctl: add two receive mode checking for TUN/TAP driver

[Li Wang]

IFF_NAPI(1) and IFF_NAPI_FRAGS(2) are two new flags for TUN/TAP
driver, but currently ioctl03 does not hanlde them so it always
failed on latest kernel-4.15.0-rc2 like:

ioctl03     0  TINFO  :  Available features are: 0x7133
ioctl03     0  TINFO  :  TUN 0x1
ioctl03     0  TINFO  :  TAP 0x2
ioctl03     0  TINFO  :  NO_PI 0x1000
ioctl03     0  TINFO  :  ONE_QUEUE 0x2000
ioctl03     0  TINFO  :  VNET_HDR 0x4000
ioctl03     0  TINFO  :  MULTI_QUEUE 0x100
ioctl03     1  TFAIL  :  ioctl03.c:114: (UNKNOWN 0x30)

See kernel commit:
(1) commit 943170998b2 (tun: enable NAPI for TUN/TAP driver)
(2) commit 90e33d45940 (tun: enable napi_gro_frags() for TUN/TAP driver)

Signed-off-by: Li Wang <liwang@redhat.com>
---
 testcases/kernel/syscalls/ioctl/ioctl03.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/ioctl/ioctl03.c b/testcases/kernel/syscalls/ioctl/ioctl03.c
index 83433b8..8c3d446 100644
--- a/testcases/kernel/syscalls/ioctl/ioctl03.c
+++ b/testcases/kernel/syscalls/ioctl/ioctl03.c
@@ -60,6 +60,14 @@
 #define IFF_MULTI_QUEUE	0x0100
 #endif
 
+#ifndef IFF_NAPI
+#define IFF_NAPI       0x0010
+#endif
+
+#ifndef IFF_NAPI_FRAGS
+#define IFF_NAPI_FRAGS 0x0020
+#endif
+
 char *TCID = "ioctl03";
 int TST_TOTAL = 1;
 
@@ -84,7 +92,9 @@ static struct {
 	IFF_NO_PI, "NO_PI"}, {
 	IFF_ONE_QUEUE, "ONE_QUEUE"}, {
 	IFF_VNET_HDR, "VNET_HDR"}, {
-	IFF_MULTI_QUEUE, "MULTI_QUEUE"}
+	IFF_MULTI_QUEUE, "MULTI_QUEUE"}, {
+	IFF_NAPI, "IFF_NAPI"}, {
+	IFF_NAPI_FRAGS, "IFF_NAPI_FRAGS"}
 };
 
 int main(void)
-- 
2.9.3