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vdpa/vp_vdpa: implement kick_vq_with_data callback

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Implement the kick_vq_with_data vDPA callback.
On kick, we pass the next available data to the hardware by writing it in
the kick offset.

Signed-off-by: Yuxue Liu <yuxue.liu@jaguarmicro.com>
Message-Id: <20241203023743.1757-1-yuxue.liu@jaguarmicro.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Yuxue Liu 2024-12-03 10:37:43 +08:00 committed by Michael S. Tsirkin
parent 302b49daf0
commit 33bb2d1606
1 changed files with 9 additions and 0 deletions
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9
drivers/vdpa/virtio_pci/vp_vdpa.c
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@ -367,6 +367,14 @@ static void vp_vdpa_kick_vq(struct vdpa_device *vdpa, u16 qid)
vp_iowrite16(qid, vp_vdpa->vring[qid].notify);
}
static void vp_vdpa_kick_vq_with_data(struct vdpa_device *vdpa, u32 data)
{
struct vp_vdpa *vp_vdpa = vdpa_to_vp(vdpa);
u16 qid = data & 0xFFFF;
vp_iowrite32(data, vp_vdpa->vring[qid].notify);
}
static u32 vp_vdpa_get_generation(struct vdpa_device *vdpa)
{
struct virtio_pci_modern_device *mdev = vdpa_to_mdev(vdpa);
@ -472,6 +480,7 @@ static const struct vdpa_config_ops vp_vdpa_ops = {
.get_vq_size = vp_vdpa_get_vq_size,
.set_vq_address = vp_vdpa_set_vq_address,
.kick_vq = vp_vdpa_kick_vq,
.kick_vq_with_data = vp_vdpa_kick_vq_with_data,
.get_generation = vp_vdpa_get_generation,
.get_device_id = vp_vdpa_get_device_id,
.get_vendor_id = vp_vdpa_get_vendor_id,