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| author | Yuxue Liu <yuxue.liu@jaguarmicro.com> | 2024-12-03 10:37:43 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-01-08 07:29:05 -0500 |
| commit | 33bb2d16063bd105acd99075a6161761ab510e33 (patch) | |
| tree | 03a4f43cdb5ec0fa42cf8bb1555afb0bfd7f2aad /drivers/vdpa | |
| parent | 302b49daf0c75cafd0719eadf09127abf5a69e50 (diff) | |
| download | lwn-33bb2d16063bd105acd99075a6161761ab510e33.tar.gz lwn-33bb2d16063bd105acd99075a6161761ab510e33.zip | |
vdpa/vp_vdpa: implement kick_vq_with_data callback
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>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/virtio_pci/vp_vdpa.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c index 16380764275e..8787407f75b0 100644 --- a/drivers/vdpa/virtio_pci/vp_vdpa.c +++ b/drivers/vdpa/virtio_pci/vp_vdpa.c @@ -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, |