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| author | Stefano Garzarella <sgarzare@redhat.com> | 2019-02-21 11:33:14 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2019-02-22 09:42:17 +0000 |
| commit | 9a9f4b74fa547b68edb38fa414999836770a4735 (patch) | |
| tree | cdaddd74088164f370556c454844505447857a02 /tests/virtio-blk-test.c | |
| parent | 06879094bb7a50dd5ee503f3f0e208e0cd91dbc3 (diff) | |
| download | qemu-9a9f4b74fa547b68edb38fa414999836770a4735.zip qemu-9a9f4b74fa547b68edb38fa414999836770a4735.tar.gz qemu-9a9f4b74fa547b68edb38fa414999836770a4735.tar.bz2 | |
tests/virtio-blk: add test for DISCARD command
If the DISCARD feature is enabled, we try this command in the
test_basic(), checking only the status returned by the request.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20190221103314.58500-11-sgarzare@redhat.com
Message-Id: <20190221103314.58500-11-sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'tests/virtio-blk-test.c')
| -rw-r--r-- | tests/virtio-blk-test.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c index f43d971..8d2fc9c 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 */ |