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author | Michael S. Tsirkin <mst@redhat.com> | 2012-04-16 10:11:12 -0400 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2012-05-02 18:22:14 +0300 |
commit | 64d098886e0ec01f88349fe757161c2e2e89086b (patch) | |
tree | 88f3daa1187f1fa8e84c56859fc4e2adc81b0e95 /tools/virtio/virtio_test.c | |
parent | e4ae004b84b315dd4b762e474f97403eac70f76a (diff) | |
download | op-kernel-dev-64d098886e0ec01f88349fe757161c2e2e89086b.zip op-kernel-dev-64d098886e0ec01f88349fe757161c2e2e89086b.tar.gz |
virtio/tools: add delayed interupt mode
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/virtio/virtio_test.c')
-rw-r--r-- | tools/virtio/virtio_test.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c index 6bf95f9..e626fa5 100644 --- a/tools/virtio/virtio_test.c +++ b/tools/virtio/virtio_test.c @@ -144,7 +144,8 @@ static void wait_for_interrupt(struct vdev_info *dev) } } -static void run_test(struct vdev_info *dev, struct vq_info *vq, int bufs) +static void run_test(struct vdev_info *dev, struct vq_info *vq, + bool delayed, int bufs) { struct scatterlist sl; long started = 0, completed = 0; @@ -183,8 +184,12 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq, int bufs) assert(started <= bufs); if (completed == bufs) break; - if (virtqueue_enable_cb(vq->vq)) { - wait_for_interrupt(dev); + if (delayed) { + if (virtqueue_enable_cb_delayed(vq->vq)) + wait_for_interrupt(dev); + } else { + if (virtqueue_enable_cb(vq->vq)) + wait_for_interrupt(dev); } } test = 0; @@ -216,6 +221,14 @@ const struct option longopts[] = { .val = 'i', }, { + .name = "delayed-interrupt", + .val = 'D', + }, + { + .name = "no-delayed-interrupt", + .val = 'd', + }, + { } }; @@ -224,6 +237,7 @@ static void help() fprintf(stderr, "Usage: virtio_test [--help]" " [--no-indirect]" " [--no-event-idx]" + " [--delayed-interrupt]" "\n"); } @@ -233,6 +247,7 @@ int main(int argc, char **argv) unsigned long long features = (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | (1ULL << VIRTIO_RING_F_EVENT_IDX); int o; + bool delayed = false; for (;;) { o = getopt_long(argc, argv, optstring, longopts, NULL); @@ -251,6 +266,9 @@ int main(int argc, char **argv) case 'i': features &= ~(1ULL << VIRTIO_RING_F_INDIRECT_DESC); break; + case 'D': + delayed = true; + break; default: assert(0); break; @@ -260,6 +278,6 @@ int main(int argc, char **argv) done: vdev_info_init(&dev, features); vq_info_add(&dev, 256); - run_test(&dev, &dev.vqs[0], 0x100000); + run_test(&dev, &dev.vqs[0], delayed, 0x100000); return 0; } |