vhost: remove device operations pointers

The vhost_net_device_ops indirection is unnecessary because there is only
one implementation of the vhost common code.
Removing it makes the code more readable.

Signed-off-by: Rich Lane <rich.lane@bigswitch.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>

diff --git a/examples/vhost_xen/virtio-net.h b/examples/vhost_xen/virtio-net.h
index c8c5a7a..ab69726 100644 (file)
--- a/examples/vhost_xen/virtio-net.h
+++ b/examples/vhost_xen/virtio-net.h
@@ -110,6 +110,4 @@ struct virtio_net_device_ops {
        void (* destroy_device) (volatile struct virtio_net *); /* Remove device. */
 };
 
-struct vhost_net_device_ops const * get_virtio_net_callbacks(void);
-
 #endif

diff --git a/lib/librte_vhost/vhost-net.h b/lib/librte_vhost/vhost-net.h
index affbd1a..f193a1f 100644 (file)
--- a/lib/librte_vhost/vhost-net.h
+++ b/lib/librte_vhost/vhost-net.h
@@ -43,8 +43,6 @@
 
 #include "rte_virtio_net.h"
 
-extern struct vhost_net_device_ops const *ops;
-
 /* Macros for printing using RTE_LOG */
 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
 #define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER1
@@ -85,36 +83,28 @@ struct vhost_device_ctx {
        uint64_t        fh;     /* Populated with fi->fh to track the device index. */
 };
 
-/*
- * Structure contains function pointers to be defined in virtio-net.c. These
- * functions are called in CUSE context and are used to configure devices.
- */
-struct vhost_net_device_ops {
-       int (*new_device)(struct vhost_device_ctx);
-       void (*destroy_device)(struct vhost_device_ctx);
-
-       void (*set_ifname)(struct vhost_device_ctx,
-               const char *if_name, unsigned int if_len);
-
-       int (*get_features)(struct vhost_device_ctx, uint64_t *);
-       int (*set_features)(struct vhost_device_ctx, uint64_t *);
+int vhost_new_device(struct vhost_device_ctx);
+void vhost_destroy_device(struct vhost_device_ctx);
 
-       int (*set_vring_num)(struct vhost_device_ctx, struct vhost_vring_state *);
-       int (*set_vring_addr)(struct vhost_device_ctx, struct vhost_vring_addr *);
-       int (*set_vring_base)(struct vhost_device_ctx, struct vhost_vring_state *);
-       int (*get_vring_base)(struct vhost_device_ctx, uint32_t, struct vhost_vring_state *);
+void vhost_set_ifname(struct vhost_device_ctx,
+       const char *if_name, unsigned int if_len);
 
-       int (*set_vring_kick)(struct vhost_device_ctx, struct vhost_vring_file *);
-       int (*set_vring_call)(struct vhost_device_ctx, struct vhost_vring_file *);
+int vhost_get_features(struct vhost_device_ctx, uint64_t *);
+int vhost_set_features(struct vhost_device_ctx, uint64_t *);
 
-       int (*set_backend)(struct vhost_device_ctx, struct vhost_vring_file *);
+int vhost_set_vring_num(struct vhost_device_ctx, struct vhost_vring_state *);
+int vhost_set_vring_addr(struct vhost_device_ctx, struct vhost_vring_addr *);
+int vhost_set_vring_base(struct vhost_device_ctx, struct vhost_vring_state *);
+int vhost_get_vring_base(struct vhost_device_ctx,
+       uint32_t, struct vhost_vring_state *);
 
-       int (*set_owner)(struct vhost_device_ctx);
-       int (*reset_owner)(struct vhost_device_ctx);
-};
+int vhost_set_vring_kick(struct vhost_device_ctx, struct vhost_vring_file *);
+int vhost_set_vring_call(struct vhost_device_ctx, struct vhost_vring_file *);
 
+int vhost_set_backend(struct vhost_device_ctx, struct vhost_vring_file *);
 
-struct vhost_net_device_ops const *get_virtio_net_callbacks(void);
+int vhost_set_owner(struct vhost_device_ctx);
+int vhost_reset_owner(struct vhost_device_ctx);
 
 /*
  * Backend-specific cleanup. Defined by vhost-cuse and vhost-user.

diff --git a/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c b/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
index ae7ad8d..c613e68 100644 (file)
--- a/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
+++ b/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
@@ -58,7 +58,6 @@ static const char cuse_device_name[] = "/dev/cuse";
 static const char default_cdev[] = "vhost-net";
 
 static struct fuse_session *session;
-struct vhost_net_device_ops const *ops;
 
 /*
  * Returns vhost_device_ctx from given fuse_req_t. The index is populated later
@@ -86,7 +85,7 @@ vhost_net_open(fuse_req_t req, struct fuse_file_info *fi)
        struct vhost_device_ctx ctx = fuse_req_to_vhost_ctx(req, fi);
        int err = 0;
 
-       err = ops->new_device(ctx);
+       err = vhost_new_device(ctx);
        if (err == -1) {
                fuse_reply_err(req, EPERM);
                return;
@@ -108,7 +107,7 @@ vhost_net_release(fuse_req_t req, struct fuse_file_info *fi)
        int err = 0;
        struct vhost_device_ctx ctx = fuse_req_to_vhost_ctx(req, fi);
 
-       ops->destroy_device(ctx);
+       vhost_destroy_device(ctx);
        RTE_LOG(INFO, VHOST_CONFIG, "(%"PRIu64") Device released\n", ctx.fh);
        fuse_reply_err(req, err);
 }
@@ -208,25 +207,25 @@ vhost_net_ioctl(fuse_req_t req, int cmd, void *arg,
        case VHOST_GET_FEATURES:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_GET_FEATURES\n", ctx.fh);
-               VHOST_IOCTL_W(uint64_t, features, ops->get_features);
+               VHOST_IOCTL_W(uint64_t, features, vhost_get_features);
                break;
 
        case VHOST_SET_FEATURES:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_SET_FEATURES\n", ctx.fh);
-               VHOST_IOCTL_R(uint64_t, features, ops->set_features);
+               VHOST_IOCTL_R(uint64_t, features, vhost_set_features);
                break;
 
        case VHOST_RESET_OWNER:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_RESET_OWNER\n", ctx.fh);
-               VHOST_IOCTL(ops->reset_owner);
+               VHOST_IOCTL(vhost_reset_owner);
                break;
 
        case VHOST_SET_OWNER:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_SET_OWNER\n", ctx.fh);
-               VHOST_IOCTL(ops->set_owner);
+               VHOST_IOCTL(vhost_set_owner);
                break;
 
        case VHOST_SET_MEM_TABLE:
@@ -267,28 +266,28 @@ vhost_net_ioctl(fuse_req_t req, int cmd, void *arg,
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_SET_VRING_NUM\n", ctx.fh);
                VHOST_IOCTL_R(struct vhost_vring_state, state,
-                       ops->set_vring_num);
+                       vhost_set_vring_num);
                break;
 
        case VHOST_SET_VRING_BASE:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_SET_VRING_BASE\n", ctx.fh);
                VHOST_IOCTL_R(struct vhost_vring_state, state,
-                       ops->set_vring_base);
+                       vhost_set_vring_base);
                break;
 
        case VHOST_GET_VRING_BASE:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_GET_VRING_BASE\n", ctx.fh);
                VHOST_IOCTL_RW(uint32_t, index,
-                       struct vhost_vring_state, state, ops->get_vring_base);
+                       struct vhost_vring_state, state, vhost_get_vring_base);
                break;
 
        case VHOST_SET_VRING_ADDR:
                LOG_DEBUG(VHOST_CONFIG,
                        "(%"PRIu64") IOCTL: VHOST_SET_VRING_ADDR\n", ctx.fh);
                VHOST_IOCTL_R(struct vhost_vring_addr, addr,
-                       ops->set_vring_addr);
+                       vhost_set_vring_addr);
                break;
 
        case VHOST_SET_VRING_KICK:
@@ -316,10 +315,10 @@ vhost_net_ioctl(fuse_req_t req, int cmd, void *arg,
                        }
                        file.fd = fd;
                        if (cmd == VHOST_SET_VRING_KICK) {
-                               result = ops->set_vring_kick(ctx, &file);
+                               result = vhost_set_vring_kick(ctx, &file);
                                fuse_reply_ioctl(req, result, NULL, 0);
                        } else {
-                               result = ops->set_vring_call(ctx, &file);
+                               result = vhost_set_vring_call(ctx, &file);
                                fuse_reply_ioctl(req, result, NULL, 0);
                        }
                }
@@ -397,8 +396,6 @@ rte_vhost_driver_register(const char *dev_name)
        cuse_info.dev_info_argv = device_argv;
        cuse_info.flags = CUSE_UNRESTRICTED_IOCTL;
 
-       ops = get_virtio_net_callbacks();
-
        session = cuse_lowlevel_setup(3, fuse_argv,
                        &cuse_info, &vhost_net_ops, 0, NULL);
        if (session == NULL)

diff --git a/lib/librte_vhost/vhost_cuse/virtio-net-cdev.c b/lib/librte_vhost/vhost_cuse/virtio-net-cdev.c
index 374c884..a68a8bd 100644 (file)
--- a/lib/librte_vhost/vhost_cuse/virtio-net-cdev.c
+++ b/lib/librte_vhost/vhost_cuse/virtio-net-cdev.c
@@ -399,7 +399,7 @@ get_ifname(struct vhost_device_ctx ctx, struct virtio_net *dev, int tap_fd, int
 
        if (ret >= 0) {
                ifr_size = strnlen(ifr.ifr_name, sizeof(ifr.ifr_name));
-               ops->set_ifname(ctx, ifr.ifr_name, ifr_size);
+               vhost_set_ifname(ctx, ifr.ifr_name, ifr_size);
        } else
                RTE_LOG(ERR, VHOST_CONFIG,
                        "(%"PRIu64") TUNGETIFF ioctl failed\n",
@@ -419,7 +419,7 @@ int cuse_set_backend(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
        if (!(dev->flags & VIRTIO_DEV_RUNNING) && file->fd != VIRTIO_DEV_STOPPED)
                get_ifname(ctx, dev, file->fd, ctx.pid);
 
-       return ops->set_backend(ctx, file);
+       return vhost_set_backend(ctx, file);
 }
 
 void

diff --git a/lib/librte_vhost/vhost_user/vhost-net-user.c b/lib/librte_vhost/vhost_user/vhost-net-user.c
index 6ed7669..de7eecb 100644 (file)
--- a/lib/librte_vhost/vhost_user/vhost-net-user.c
+++ b/lib/librte_vhost/vhost_user/vhost-net-user.c
@@ -55,7 +55,6 @@
 
 static void vserver_new_vq_conn(int fd, void *data, int *remove);
 static void vserver_message_handler(int fd, void *dat, int *remove);
-struct vhost_net_device_ops const *ops;
 
 struct connfd_ctx {
        struct vhost_server *vserver;
@@ -302,7 +301,7 @@ vserver_new_vq_conn(int fd, void *dat, __rte_unused int *remove)
                return;
        }
 
-       fh = ops->new_device(vdev_ctx);
+       fh = vhost_new_device(vdev_ctx);
        if (fh == -1) {
                free(ctx);
                close(conn_fd);
@@ -311,7 +310,7 @@ vserver_new_vq_conn(int fd, void *dat, __rte_unused int *remove)
 
        vdev_ctx.fh = fh;
        size = strnlen(vserver->path, PATH_MAX);
-       ops->set_ifname(vdev_ctx, vserver->path,
+       vhost_set_ifname(vdev_ctx, vserver->path,
                size);
 
        RTE_LOG(INFO, VHOST_CONFIG, "new device, handle is %d\n", fh);
@@ -348,7 +347,7 @@ vserver_message_handler(int connfd, void *dat, int *remove)
                close(connfd);
                *remove = 1;
                free(cfd_ctx);
-               ops->destroy_device(ctx);
+               vhost_destroy_device(ctx);
 
                return;
        }
@@ -357,14 +356,14 @@ vserver_message_handler(int connfd, void *dat, int *remove)
                vhost_message_str[msg.request]);
        switch (msg.request) {
        case VHOST_USER_GET_FEATURES:
-               ret = ops->get_features(ctx, &features);
+               ret = vhost_get_features(ctx, &features);
                msg.payload.u64 = features;
                msg.size = sizeof(msg.payload.u64);
                send_vhost_message(connfd, &msg);
                break;
        case VHOST_USER_SET_FEATURES:
                features = msg.payload.u64;
-               ops->set_features(ctx, &features);
+               vhost_set_features(ctx, &features);
                break;
 
        case VHOST_USER_GET_PROTOCOL_FEATURES:
@@ -377,10 +376,10 @@ vserver_message_handler(int connfd, void *dat, int *remove)
                break;
 
        case VHOST_USER_SET_OWNER:
-               ops->set_owner(ctx);
+               vhost_set_owner(ctx);
                break;
        case VHOST_USER_RESET_OWNER:
-               ops->reset_owner(ctx);
+               vhost_reset_owner(ctx);
                break;
 
        case VHOST_USER_SET_MEM_TABLE:
@@ -400,13 +399,13 @@ vserver_message_handler(int connfd, void *dat, int *remove)
                break;
 
        case VHOST_USER_SET_VRING_NUM:
-               ops->set_vring_num(ctx, &msg.payload.state);
+               vhost_set_vring_num(ctx, &msg.payload.state);
                break;
        case VHOST_USER_SET_VRING_ADDR:
-               ops->set_vring_addr(ctx, &msg.payload.addr);
+               vhost_set_vring_addr(ctx, &msg.payload.addr);
                break;
        case VHOST_USER_SET_VRING_BASE:
-               ops->set_vring_base(ctx, &msg.payload.state);
+               vhost_set_vring_base(ctx, &msg.payload.state);
                break;
 
        case VHOST_USER_GET_VRING_BASE:
@@ -456,8 +455,6 @@ rte_vhost_driver_register(const char *path)
        struct vhost_server *vserver;
 
        pthread_mutex_lock(&g_vhost_server.server_mutex);
-       if (ops == NULL)
-               ops = get_virtio_net_callbacks();
 
        if (g_vhost_server.vserver_cnt == MAX_VHOST_SERVER) {
                RTE_LOG(ERR, VHOST_CONFIG,

diff --git a/lib/librte_vhost/vhost_user/virtio-net-user.c b/lib/librte_vhost/vhost_user/virtio-net-user.c
index ffce0d6..68b24f4 100644 (file)
--- a/lib/librte_vhost/vhost_user/virtio-net-user.c
+++ b/lib/librte_vhost/vhost_user/virtio-net-user.c
@@ -269,7 +269,7 @@ user_set_vring_call(struct vhost_device_ctx ctx, struct VhostUserMsg *pmsg)
                file.fd = pmsg->fds[0];
        RTE_LOG(INFO, VHOST_CONFIG,
                "vring call idx:%d file:%d\n", file.index, file.fd);
-       ops->set_vring_call(ctx, &file);
+       vhost_set_vring_call(ctx, &file);
 }
 
 
@@ -290,7 +290,7 @@ user_set_vring_kick(struct vhost_device_ctx ctx, struct VhostUserMsg *pmsg)
                file.fd = pmsg->fds[0];
        RTE_LOG(INFO, VHOST_CONFIG,
                "vring kick idx:%d file:%d\n", file.index, file.fd);
-       ops->set_vring_kick(ctx, &file);
+       vhost_set_vring_kick(ctx, &file);
 
        if (virtio_is_ready(dev) &&
                !(dev->flags & VIRTIO_DEV_RUNNING))
@@ -313,7 +313,7 @@ user_get_vring_base(struct vhost_device_ctx ctx,
                notify_ops->destroy_device(dev);
 
        /* Here we are safe to get the last used index */
-       ops->get_vring_base(ctx, state->index, state);
+       vhost_get_vring_base(ctx, state->index, state);
 
        RTE_LOG(INFO, VHOST_CONFIG,
                "vring base idx:%d file:%d\n", state->index, state->num);

diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index 196e1cf..e189c74 100644 (file)
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -350,8 +350,8 @@ reset_device(struct virtio_net *dev)
  * initialised and a new entry is added to the device configuration linked
  * list.
  */
-static int
-new_device(struct vhost_device_ctx ctx)
+int
+vhost_new_device(struct vhost_device_ctx ctx)
 {
        struct virtio_net_config_ll *new_ll_dev;
 
@@ -376,8 +376,8 @@ new_device(struct vhost_device_ctx ctx)
  * Function is called from the CUSE release function. This function will
  * cleanup the device and remove it from device configuration linked list.
  */
-static void
-destroy_device(struct vhost_device_ctx ctx)
+void
+vhost_destroy_device(struct vhost_device_ctx ctx)
 {
        struct virtio_net_config_ll *ll_dev_cur_ctx, *ll_dev_last = NULL;
        struct virtio_net_config_ll *ll_dev_cur = ll_root;
@@ -405,8 +405,8 @@ destroy_device(struct vhost_device_ctx ctx)
        }
 }
 
-static void
-set_ifname(struct vhost_device_ctx ctx,
+void
+vhost_set_ifname(struct vhost_device_ctx ctx,
        const char *if_name, unsigned int if_len)
 {
        struct virtio_net *dev;
@@ -428,8 +428,8 @@ set_ifname(struct vhost_device_ctx ctx,
  * This function just returns success at the moment unless
  * the device hasn't been initialised.
  */
-static int
-set_owner(struct vhost_device_ctx ctx)
+int
+vhost_set_owner(struct vhost_device_ctx ctx)
 {
        struct virtio_net *dev;
 
@@ -443,8 +443,8 @@ set_owner(struct vhost_device_ctx ctx)
 /*
  * Called from CUSE IOCTL: VHOST_RESET_OWNER
  */
-static int
-reset_owner(struct vhost_device_ctx ctx)
+int
+vhost_reset_owner(struct vhost_device_ctx ctx)
 {
        struct virtio_net *dev;
 
@@ -464,8 +464,8 @@ reset_owner(struct vhost_device_ctx ctx)
  * Called from CUSE IOCTL: VHOST_GET_FEATURES
  * The features that we support are requested.
  */
-static int
-get_features(struct vhost_device_ctx ctx, uint64_t *pu)
+int
+vhost_get_features(struct vhost_device_ctx ctx, uint64_t *pu)
 {
        struct virtio_net *dev;
 
@@ -482,8 +482,8 @@ get_features(struct vhost_device_ctx ctx, uint64_t *pu)
  * Called from CUSE IOCTL: VHOST_SET_FEATURES
  * We receive the negotiated features supported by us and the virtio device.
  */
-static int
-set_features(struct vhost_device_ctx ctx, uint64_t *pu)
+int
+vhost_set_features(struct vhost_device_ctx ctx, uint64_t *pu)
 {
        struct virtio_net *dev;
        uint16_t vhost_hlen;
@@ -522,8 +522,9 @@ set_features(struct vhost_device_ctx ctx, uint64_t *pu)
  * Called from CUSE IOCTL: VHOST_SET_VRING_NUM
  * The virtio device sends us the size of the descriptor ring.
  */
-static int
-set_vring_num(struct vhost_device_ctx ctx, struct vhost_vring_state *state)
+int
+vhost_set_vring_num(struct vhost_device_ctx ctx,
+       struct vhost_vring_state *state)
 {
        struct virtio_net *dev;
 
@@ -624,8 +625,8 @@ numa_realloc(struct virtio_net *dev, int index __rte_unused)
  * The virtio device sends us the desc, used and avail ring addresses.
  * This function then converts these to our address space.
  */
-static int
-set_vring_addr(struct vhost_device_ctx ctx, struct vhost_vring_addr *addr)
+int
+vhost_set_vring_addr(struct vhost_device_ctx ctx, struct vhost_vring_addr *addr)
 {
        struct virtio_net *dev;
        struct vhost_virtqueue *vq;
@@ -686,8 +687,9 @@ set_vring_addr(struct vhost_device_ctx ctx, struct vhost_vring_addr *addr)
  * Called from CUSE IOCTL: VHOST_SET_VRING_BASE
  * The virtio device sends us the available ring last used index.
  */
-static int
-set_vring_base(struct vhost_device_ctx ctx, struct vhost_vring_state *state)
+int
+vhost_set_vring_base(struct vhost_device_ctx ctx,
+       struct vhost_vring_state *state)
 {
        struct virtio_net *dev;
 
@@ -706,8 +708,8 @@ set_vring_base(struct vhost_device_ctx ctx, struct vhost_vring_state *state)
  * Called from CUSE IOCTL: VHOST_GET_VRING_BASE
  * We send the virtio device our available ring last used index.
  */
-static int
-get_vring_base(struct vhost_device_ctx ctx, uint32_t index,
+int
+vhost_get_vring_base(struct vhost_device_ctx ctx, uint32_t index,
        struct vhost_vring_state *state)
 {
        struct virtio_net *dev;
@@ -729,8 +731,8 @@ get_vring_base(struct vhost_device_ctx ctx, uint32_t index,
  * The virtio device sends an eventfd to interrupt the guest. This fd gets
  * copied into our process space.
  */
-static int
-set_vring_call(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
+int
+vhost_set_vring_call(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
 {
        struct virtio_net *dev;
        struct vhost_virtqueue *vq;
@@ -766,8 +768,8 @@ set_vring_call(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
  * The virtio device sends an eventfd that it can use to notify us.
  * This fd gets copied into our process space.
  */
-static int
-set_vring_kick(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
+int
+vhost_set_vring_kick(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
 {
        struct virtio_net *dev;
        struct vhost_virtqueue *vq;
@@ -796,8 +798,8 @@ set_vring_kick(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
  * At that point we remove the device from the data core.
  * The device will still exist in the device configuration linked list.
  */
-static int
-set_backend(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
+int
+vhost_set_backend(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
 {
        struct virtio_net *dev;
 
@@ -824,42 +826,6 @@ set_backend(struct vhost_device_ctx ctx, struct vhost_vring_file *file)
        return 0;
 }
 
-/*
- * Function pointers are set for the device operations to allow CUSE to call
- * functions when an IOCTL, device_add or device_release is received.
- */
-static const struct vhost_net_device_ops vhost_device_ops = {
-       .new_device = new_device,
-       .destroy_device = destroy_device,
-
-       .set_ifname = set_ifname,
-
-       .get_features = get_features,
-       .set_features = set_features,
-
-       .set_vring_num = set_vring_num,
-       .set_vring_addr = set_vring_addr,
-       .set_vring_base = set_vring_base,
-       .get_vring_base = get_vring_base,
-
-       .set_vring_kick = set_vring_kick,
-       .set_vring_call = set_vring_call,
-
-       .set_backend = set_backend,
-
-       .set_owner = set_owner,
-       .reset_owner = reset_owner,
-};
-
-/*
- * Called by main to setup callbacks when registering CUSE device.
- */
-struct vhost_net_device_ops const *
-get_virtio_net_callbacks(void)
-{
-       return &vhost_device_ops;
-}
-
 int rte_vhost_enable_guest_notification(struct virtio_net *dev,
        uint16_t queue_id, int enable)
 {