vhost: use a function for each call

Replace the generic vhost_call() by specific functions for each
function call to help with type safety and changing arguments.

While doing this, I found that "unsigned long long" and "uint64_t" were
used interchangeably and causing compilation warnings, using uint64_t
instead, as the vhost & protocol specifies.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[Fix enum usage and MQ - Thibaut Collet]
Signed-off-by: Thibaut Collet <thibaut.collet@6wind.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>

1 files changed, 120 insertions, 12 deletions

diff --git a/hw/virtio/vhost-backend.c b/hw/virtio/vhost-backend.c
index 5a2f1af..1d5f684 100644
--- a/hw/virtio/vhost-backend.c
+++ b/hw/virtio/vhost-backend.c
@@ -43,13 +43,6 @@ static int vhost_kernel_cleanup(struct vhost_dev *dev)
     return close(fd);
 }
 
-static int vhost_kernel_get_vq_index(struct vhost_dev *dev, int idx)
-{
-    assert(idx >= dev->vq_index && idx < dev->vq_index + dev->nvqs);
-
-    return idx - dev->vq_index;
-}
-
 static int vhost_kernel_memslots_limit(struct vhost_dev *dev)
 {
     int limit = 64;
@@ -67,20 +60,135 @@ static int vhost_kernel_memslots_limit(struct vhost_dev *dev)
     return limit;
 }
 
-static int vhost_set_log_base(struct vhost_dev *dev, uint64_t base,
-                              struct vhost_log *log)
+static int vhost_kernel_net_set_backend(struct vhost_dev *dev,
+                                        struct vhost_vring_file *file)
+{
+    return vhost_kernel_call(dev, VHOST_NET_SET_BACKEND, file);
+}
+
+static int vhost_kernel_scsi_set_endpoint(struct vhost_dev *dev,
+                                          struct vhost_scsi_target *target)
+{
+    return vhost_kernel_call(dev, VHOST_SCSI_SET_ENDPOINT, target);
+}
+
+static int vhost_kernel_scsi_clear_endpoint(struct vhost_dev *dev,
+                                            struct vhost_scsi_target *target)
+{
+    return vhost_kernel_call(dev, VHOST_SCSI_CLEAR_ENDPOINT, target);
+}
+
+static int vhost_kernel_scsi_get_abi_version(struct vhost_dev *dev, int *version)
+{
+    return vhost_kernel_call(dev, VHOST_SCSI_GET_ABI_VERSION, version);
+}
+
+static int vhost_kernel_set_log_base(struct vhost_dev *dev, uint64_t base,
+                                     struct vhost_log *log)
 {
     return vhost_kernel_call(dev, VHOST_SET_LOG_BASE, &base);
 }
 
+static int vhost_kernel_set_mem_table(struct vhost_dev *dev,
+                                      struct vhost_memory *mem)
+{
+    return vhost_kernel_call(dev, VHOST_SET_MEM_TABLE, mem);
+}
+
+static int vhost_kernel_set_vring_addr(struct vhost_dev *dev,
+                                       struct vhost_vring_addr *addr)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_ADDR, addr);
+}
+
+static int vhost_kernel_set_vring_endian(struct vhost_dev *dev,
+                                         struct vhost_vring_state *ring)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_ENDIAN, ring);
+}
+
+static int vhost_kernel_set_vring_num(struct vhost_dev *dev,
+                                      struct vhost_vring_state *ring)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_NUM, ring);
+}
+
+static int vhost_kernel_set_vring_base(struct vhost_dev *dev,
+                                       struct vhost_vring_state *ring)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_BASE, ring);
+}
+
+static int vhost_kernel_get_vring_base(struct vhost_dev *dev,
+                                       struct vhost_vring_state *ring)
+{
+    return vhost_kernel_call(dev, VHOST_GET_VRING_BASE, ring);
+}
+
+static int vhost_kernel_set_vring_kick(struct vhost_dev *dev,
+                                       struct vhost_vring_file *file)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_KICK, file);
+}
+
+static int vhost_kernel_set_vring_call(struct vhost_dev *dev,
+                                       struct vhost_vring_file *file)
+{
+    return vhost_kernel_call(dev, VHOST_SET_VRING_CALL, file);
+}
+
+static int vhost_kernel_set_features(struct vhost_dev *dev,
+                                     uint64_t features)
+{
+    return vhost_kernel_call(dev, VHOST_SET_FEATURES, &features);
+}
+
+static int vhost_kernel_get_features(struct vhost_dev *dev,
+                                     uint64_t *features)
+{
+    return vhost_kernel_call(dev, VHOST_GET_FEATURES, features);
+}
+
+static int vhost_kernel_set_owner(struct vhost_dev *dev)
+{
+    return vhost_kernel_call(dev, VHOST_SET_OWNER, NULL);
+}
+
+static int vhost_kernel_reset_device(struct vhost_dev *dev)
+{
+    return vhost_kernel_call(dev, VHOST_RESET_DEVICE, NULL);
+}
+
+static int vhost_kernel_get_vq_index(struct vhost_dev *dev, int idx)
+{
+    assert(idx >= dev->vq_index && idx < dev->vq_index + dev->nvqs);
+
+    return idx - dev->vq_index;
+}
+
 static const VhostOps kernel_ops = {
         .backend_type = VHOST_BACKEND_TYPE_KERNEL,
-        .vhost_call = vhost_kernel_call,
         .vhost_backend_init = vhost_kernel_init,
         .vhost_backend_cleanup = vhost_kernel_cleanup,
-        .vhost_backend_get_vq_index = vhost_kernel_get_vq_index,
         .vhost_backend_memslots_limit = vhost_kernel_memslots_limit,
-        .vhost_set_log_base = vhost_set_log_base,
+        .vhost_net_set_backend = vhost_kernel_net_set_backend,
+        .vhost_scsi_set_endpoint = vhost_kernel_scsi_set_endpoint,
+        .vhost_scsi_clear_endpoint = vhost_kernel_scsi_clear_endpoint,
+        .vhost_scsi_get_abi_version = vhost_kernel_scsi_get_abi_version,
+        .vhost_set_log_base = vhost_kernel_set_log_base,
+        .vhost_set_mem_table = vhost_kernel_set_mem_table,
+        .vhost_set_vring_addr = vhost_kernel_set_vring_addr,
+        .vhost_set_vring_endian = vhost_kernel_set_vring_endian,
+        .vhost_set_vring_num = vhost_kernel_set_vring_num,
+        .vhost_set_vring_base = vhost_kernel_set_vring_base,
+        .vhost_get_vring_base = vhost_kernel_get_vring_base,
+        .vhost_set_vring_kick = vhost_kernel_set_vring_kick,
+        .vhost_set_vring_call = vhost_kernel_set_vring_call,
+        .vhost_set_features = vhost_kernel_set_features,
+        .vhost_get_features = vhost_kernel_get_features,
+        .vhost_set_owner = vhost_kernel_set_owner,
+        .vhost_reset_device = vhost_kernel_reset_device,
+        .vhost_get_vq_index = vhost_kernel_get_vq_index,
 };
 
 int vhost_set_backend_type(struct vhost_dev *dev, VhostBackendType backend_type)