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vdpa: Make VhostVDPAState cvq_cmd_in_buffer control ack type

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This allows to simplify the code. Rename to status while we're at it.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-09-06 17:07:14 +02:00 committed by Jason Wang
parent 8dc2779180
commit 17fb889f8a
1 changed files with 12 additions and 11 deletions
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23
net/vhost-vdpa.c
View File

@ -35,7 +35,9 @@ typedef struct VhostVDPAState {
VHostNetState *vhost_net;
/* Control commands shadow buffers */
void *cvq_cmd_out_buffer, *cvq_cmd_in_buffer;
void *cvq_cmd_out_buffer;
virtio_net_ctrl_ack *status;
bool started;
} VhostVDPAState;
@ -158,7 +160,7 @@ static void vhost_vdpa_cleanup(NetClientState *nc)
struct vhost_dev *dev = &s->vhost_net->dev;
qemu_vfree(s->cvq_cmd_out_buffer);
qemu_vfree(s->cvq_cmd_in_buffer);
qemu_vfree(s->status);
if (dev->vq_index + dev->nvqs == dev->vq_index_end) {
g_clear_pointer(&s->vhost_vdpa.iova_tree, vhost_iova_tree_delete);
}
@ -310,7 +312,7 @@ static int vhost_vdpa_net_cvq_start(NetClientState *nc)
return r;
}
r = vhost_vdpa_cvq_map_buf(&s->vhost_vdpa, s->cvq_cmd_in_buffer,
r = vhost_vdpa_cvq_map_buf(&s->vhost_vdpa, s->status,
vhost_vdpa_net_cvq_cmd_page_len(), true);
if (unlikely(r < 0)) {
vhost_vdpa_cvq_unmap_buf(&s->vhost_vdpa, s->cvq_cmd_out_buffer);
@ -327,7 +329,7 @@ static void vhost_vdpa_net_cvq_stop(NetClientState *nc)
if (s->vhost_vdpa.shadow_vqs_enabled) {
vhost_vdpa_cvq_unmap_buf(&s->vhost_vdpa, s->cvq_cmd_out_buffer);
vhost_vdpa_cvq_unmap_buf(&s->vhost_vdpa, s->cvq_cmd_in_buffer);
vhost_vdpa_cvq_unmap_buf(&s->vhost_vdpa, s->status);
}
}
@ -340,7 +342,7 @@ static ssize_t vhost_vdpa_net_cvq_add(VhostVDPAState *s, size_t out_len,
.iov_len = out_len,
};
const struct iovec in = {
.iov_base = s->cvq_cmd_in_buffer,
.iov_base = s->status,
.iov_len = sizeof(virtio_net_ctrl_ack),
};
VhostShadowVirtqueue *svq = g_ptr_array_index(s->vhost_vdpa.shadow_vqs, 0);
@ -396,7 +398,7 @@ static int vhost_vdpa_net_load(NetClientState *nc)
return dev_written;
}
return *((virtio_net_ctrl_ack *)s->cvq_cmd_in_buffer) != VIRTIO_NET_OK;
return *s->status != VIRTIO_NET_OK;
}
return 0;
@ -491,8 +493,7 @@ static int vhost_vdpa_net_handle_ctrl_avail(VhostShadowVirtqueue *svq,
goto out;
}
memcpy(&status, s->cvq_cmd_in_buffer, sizeof(status));
if (status != VIRTIO_NET_OK) {
if (*s->status != VIRTIO_NET_OK) {
return VIRTIO_NET_ERR;
}
@ -549,9 +550,9 @@ static NetClientState *net_vhost_vdpa_init(NetClientState *peer,
s->cvq_cmd_out_buffer = qemu_memalign(qemu_real_host_page_size(),
vhost_vdpa_net_cvq_cmd_page_len());
memset(s->cvq_cmd_out_buffer, 0, vhost_vdpa_net_cvq_cmd_page_len());
s->cvq_cmd_in_buffer = qemu_memalign(qemu_real_host_page_size(),
vhost_vdpa_net_cvq_cmd_page_len());
memset(s->cvq_cmd_in_buffer, 0, vhost_vdpa_net_cvq_cmd_page_len());
s->status = qemu_memalign(qemu_real_host_page_size(),
vhost_vdpa_net_cvq_cmd_page_len());
memset(s->status, 0, vhost_vdpa_net_cvq_cmd_page_len());
s->vhost_vdpa.shadow_vq_ops = &vhost_vdpa_net_svq_ops;
s->vhost_vdpa.shadow_vq_ops_opaque = s;