xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vhost: allow per device message handler

Browse Source 
This patch allow device to register its own message handler during
vhost_dev_init(). vDPA device will use it to implement its own DMA
mapping logic.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200326140125.19794-3-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jason Wang
2020-03-26 22:01:18 +08:00
committed by Michael S. Tsirkin
parent 20c384f1ea
commit 792a4f2ed2
5 changed files with 19 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/vhost/vhost.h
View File

@@ -174,11 +174,15 @@ struct vhost_dev {
int weight;
int byte_weight;
u64 kcov_handle;
int (*msg_handler)(struct vhost_dev *dev,
struct vhost_iotlb_msg *msg);
};
bool vhost_exceeds_weight(struct vhost_virtqueue *vq, int pkts, int total_len);
void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs,
int nvqs, int iov_limit, int weight, int byte_weight);
int nvqs, int iov_limit, int weight, int byte_weight,
int (*msg_handler)(struct vhost_dev *dev,
struct vhost_iotlb_msg *msg));
long vhost_dev_set_owner(struct vhost_dev *dev);
bool vhost_dev_has_owner(struct vhost_dev *dev);
long vhost_dev_check_owner(struct vhost_dev *);