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vhost-user: use VHOST_USER_XXX macro for switch statement 

So that we could let vhost_user_call to handle extented requests,
such as VHOST_USER_GET/SET_PROTOCOL_FEATURES, instead of invoking
vhost_user_read/write and constructing the msg again by ourself.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Tested-by: Marcel Apfelbaum <marcel@redhat.com>
This commit is contained in:
Yuanhan Liu 2015-09-23 12:19:55 +08:00 committed by Michael S. Tsirkin
parent 542571d523
commit 7305483a3d
1 changed files with 22 additions and 16 deletions
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38
hw/virtio/vhost-user.c
View File

@ -193,27 +193,33 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_USER);
msg_request = vhost_user_request_translate(request);
/* only translate vhost ioctl requests */
if (request > VHOST_USER_MAX) {
msg_request = vhost_user_request_translate(request);
} else {
msg_request = request;
}
msg.request = msg_request;
msg.flags = VHOST_USER_VERSION;
msg.size = 0;
switch (request) {
case VHOST_GET_FEATURES:
switch (msg_request) {
case VHOST_USER_GET_FEATURES:
need_reply = 1;
break;
case VHOST_SET_FEATURES:
case VHOST_SET_LOG_BASE:
case VHOST_USER_SET_FEATURES:
case VHOST_USER_SET_LOG_BASE:
msg.u64 = *((__u64 *) arg);
msg.size = sizeof(m.u64);
break;
case VHOST_SET_OWNER:
case VHOST_RESET_OWNER:
case VHOST_USER_SET_OWNER:
case VHOST_USER_RESET_OWNER:
break;
case VHOST_SET_MEM_TABLE:
case VHOST_USER_SET_MEM_TABLE:
for (i = 0; i < dev->mem->nregions; ++i) {
struct vhost_memory_region *reg = dev->mem->regions + i;
ram_addr_t ram_addr;
@ -246,30 +252,30 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
break;
case VHOST_SET_LOG_FD:
case VHOST_USER_SET_LOG_FD:
fds[fd_num++] = *((int *) arg);
break;
case VHOST_SET_VRING_NUM:
case VHOST_SET_VRING_BASE:
case VHOST_USER_SET_VRING_NUM:
case VHOST_USER_SET_VRING_BASE:
memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
msg.size = sizeof(m.state);
break;
case VHOST_GET_VRING_BASE:
case VHOST_USER_GET_VRING_BASE:
memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
msg.size = sizeof(m.state);
need_reply = 1;
break;
case VHOST_SET_VRING_ADDR:
case VHOST_USER_SET_VRING_ADDR:
memcpy(&msg.addr, arg, sizeof(struct vhost_vring_addr));
msg.size = sizeof(m.addr);
break;
case VHOST_SET_VRING_KICK:
case VHOST_SET_VRING_CALL:
case VHOST_SET_VRING_ERR:
case VHOST_USER_SET_VRING_KICK:
case VHOST_USER_SET_VRING_CALL:
case VHOST_USER_SET_VRING_ERR:
file = arg;
msg.u64 = file->index & VHOST_USER_VRING_IDX_MASK;
msg.size = sizeof(m.u64);