[PATCH 13/18] virtio_test: avail_event index support

[Michael S. Tsirkin]

Add ability to test the new avail_event feature,
enable by default.

Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
 tools/virtio/virtio_test.c |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index 157ec68..8adf55d 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -202,6 +202,14 @@ const struct option longopts[] = {
                .val = 'h',
        },
        {
+               .name = "avail-event-idx",
+               .val = 'A',
+       },
+       {
+               .name = "no-avail-event-idx",
+               .val = 'a',
+       },
+       {
                .name = "indirect",
                .val = 'I',
        },
@@ -224,7 +232,8 @@ const struct option longopts[] = {
 static void help()
 {
        fprintf(stderr, "Usage: virtio_test [--help]"
-               " [--no-indirect] "
+               " [--no-indirect]"
+               " [--no-avail-event-idx]"
                " [--no-used-event-idx]\n");
 }
 
@@ -232,7 +241,8 @@ int main(int argc, char **argv)
 {
        struct vdev_info dev;
        unsigned long long features = (1ULL << VIRTIO_RING_F_INDIRECT_DESC) |
-               (1ULL << VIRTIO_RING_F_USED_EVENT_IDX);
+               (1ULL << VIRTIO_RING_F_USED_EVENT_IDX) |
+               (1ULL << VIRTIO_RING_F_AVAIL_EVENT_IDX);
        int o;
 
        for (;;) {
@@ -243,6 +253,9 @@ int main(int argc, char **argv)
                case '?':
                        help();
                        exit(2);
+               case 'a':
+                       features &= ~(1ULL << VIRTIO_RING_F_AVAIL_EVENT_IDX);
+                       break;
                case 'h':
                        help();
                        goto done;
-- 
1.7.5.53.gc233e

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