If the DISCARD feature is enabled, we try this command in the
test_basic(), checking only the status returned by the request.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
tests/virtio-blk-test.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
index cfc560be46..0bdbee32ba 100644
--- a/tests/virtio-blk-test.c
+++ b/tests/virtio-blk-test.c
@@ -317,6 +317,33 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
guest_free(alloc, req_addr);
}
+ if (features & (1u << VIRTIO_BLK_F_DISCARD)) {
+ struct virtio_blk_discard_write_zeroes dwz_hdr;
+
+ req.type = VIRTIO_BLK_T_DISCARD;
+ req.data = (char *) &dwz_hdr;
+ dwz_hdr.sector = 0;
+ dwz_hdr.num_sectors = 1;
+ dwz_hdr.flags = 0;
+
+ virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
+
+ req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
+
+ free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
+ qvirtqueue_add(vq, req_addr + 16, sizeof(dwz_hdr), false, true);
+ qvirtqueue_add(vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, false);
+
+ qvirtqueue_kick(dev, vq, free_head);
+
+ qvirtio_wait_used_elem(dev, vq, free_head, NULL,
+ QVIRTIO_BLK_TIMEOUT_US);
+ status = readb(req_addr + 16 + sizeof(dwz_hdr));
+ g_assert_cmpint(status, ==, 0);
+
+ guest_free(alloc, req_addr);
+ }
+
if (features & (1u << VIRTIO_F_ANY_LAYOUT)) {
/* Write and read with 2 descriptor layout */
/* Write request */
--
2.20.1