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| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2016-02-01 11:17:56 +0530 |
|---|---|---|
| committer | Alexey Kardashevskiy <aik@ozlabs.ru> | 2016-02-08 16:40:38 +1100 |
| commit | bcdf942b91c3630764e2b8935ffb4c18484053cb (patch) | |
| tree | e6ff9ef54e95b28ecf3b0562afe41ac202d5323f /lib/libvirtio/virtio-blk.c | |
| parent | 805cc24afacb799a814327bd91005a5f21fd55fa (diff) | |
| download | SLOF-bcdf942b91c3630764e2b8935ffb4c18484053cb.zip SLOF-bcdf942b91c3630764e2b8935ffb4c18484053cb.tar.gz SLOF-bcdf942b91c3630764e2b8935ffb4c18484053cb.tar.bz2 | |
virtio: introduce helper for initializing virt queue
The routine takes care to allocate and set the queue address in the
device. Add these calls in virtio-net, virtio-blk and virtio-9p.
With the lack of this routine, devices like virtio-blk and virtio-9p did
not do a device reset in the driver initialization code. This helper
will fix that problem
Change the signature of virtio_set_qaddr, accepting queue address as
unsigned long argument.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Diffstat (limited to 'lib/libvirtio/virtio-blk.c')
| -rw-r--r-- | lib/libvirtio/virtio-blk.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/libvirtio/virtio-blk.c b/lib/libvirtio/virtio-blk.c index 6eb4a64..b78ada5 100644 --- a/lib/libvirtio/virtio-blk.c +++ b/lib/libvirtio/virtio-blk.c @@ -18,6 +18,8 @@ #define DEFAULT_SECTOR_SIZE 512 +static struct vqs vq; + /** * Initialize virtio-block device. * @param dev pointer to virtio device information @@ -44,6 +46,12 @@ virtioblk_init(struct virtio_device *dev) /* Device specific setup - we support F_BLK_SIZE */ virtio_set_guest_features(dev, VIRTIO_BLK_F_BLK_SIZE); + if (virtio_queue_init_vq(dev, &vq, 0)) { + virtio_set_status(dev, VIRTIO_STAT_ACKNOWLEDGE|VIRTIO_STAT_DRIVER + |VIRTIO_STAT_FAILED); + return 0; + } + vq_avail = virtio_get_vring_avail(dev, 0); vq_avail->flags = VRING_AVAIL_F_NO_INTERRUPT; vq_avail->idx = 0; |