struct pmd_internal {
rte_atomic32_t dev_attached;
- char *dev_name;
char *iface_name;
+ uint64_t flags;
+ uint64_t disable_flags;
uint16_t max_queues;
int vid;
rte_atomic32_t started;
return nb_tx;
}
-static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
-{
- struct pmd_internal *internal = dev->data->dev_private;
- const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
-
- internal->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
-
- return 0;
-}
-
static inline struct internal_list *
find_internal_resource(char *ifname)
{
.vring_state_changed = vring_state_changed,
};
+static int
+vhost_driver_setup(struct rte_eth_dev *eth_dev)
+{
+ struct pmd_internal *internal = eth_dev->data->dev_private;
+ struct internal_list *list = NULL;
+ struct rte_vhost_vring_state *vring_state = NULL;
+ unsigned int numa_node = eth_dev->device->numa_node;
+ const char *name = eth_dev->device->name;
+
+ /* Don't try to setup again if it has already been done. */
+ list = find_internal_resource(internal->iface_name);
+ if (list)
+ return 0;
+
+ list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node);
+ if (list == NULL)
+ return -1;
+
+ vring_state = rte_zmalloc_socket(name, sizeof(*vring_state),
+ 0, numa_node);
+ if (vring_state == NULL)
+ goto free_list;
+
+ list->eth_dev = eth_dev;
+ pthread_mutex_lock(&internal_list_lock);
+ TAILQ_INSERT_TAIL(&internal_list, list, next);
+ pthread_mutex_unlock(&internal_list_lock);
+
+ rte_spinlock_init(&vring_state->lock);
+ vring_states[eth_dev->data->port_id] = vring_state;
+
+ if (rte_vhost_driver_register(internal->iface_name, internal->flags))
+ goto list_remove;
+
+ if (internal->disable_flags) {
+ if (rte_vhost_driver_disable_features(internal->iface_name,
+ internal->disable_flags))
+ goto drv_unreg;
+ }
+
+ if (rte_vhost_driver_callback_register(internal->iface_name,
+ &vhost_ops) < 0) {
+ VHOST_LOG(ERR, "Can't register callbacks\n");
+ goto drv_unreg;
+ }
+
+ if (rte_vhost_driver_start(internal->iface_name) < 0) {
+ VHOST_LOG(ERR, "Failed to start driver for %s\n",
+ internal->iface_name);
+ goto drv_unreg;
+ }
+
+ return 0;
+
+drv_unreg:
+ rte_vhost_driver_unregister(internal->iface_name);
+list_remove:
+ vring_states[eth_dev->data->port_id] = NULL;
+ pthread_mutex_lock(&internal_list_lock);
+ TAILQ_REMOVE(&internal_list, list, next);
+ pthread_mutex_unlock(&internal_list_lock);
+ rte_free(vring_state);
+free_list:
+ rte_free(list);
+
+ return -1;
+}
+
int
rte_eth_vhost_get_queue_event(uint16_t port_id,
struct rte_eth_vhost_queue_event *event)
return vid;
}
+static int
+eth_dev_configure(struct rte_eth_dev *dev)
+{
+ struct pmd_internal *internal = dev->data->dev_private;
+ const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+
+ /* NOTE: the same process has to operate a vhost interface
+ * from beginning to end (from eth_dev configure to eth_dev close).
+ * It is user's responsibility at the moment.
+ */
+ if (vhost_driver_setup(dev) < 0)
+ return -1;
+
+ internal->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
+
+ return 0;
+}
+
static int
eth_dev_start(struct rte_eth_dev *eth_dev)
{
for (i = 0; i < dev->data->nb_tx_queues; i++)
rte_free(dev->data->tx_queues[i]);
- free(internal->dev_name);
- free(internal->iface_name);
+ rte_free(internal->iface_name);
rte_free(internal);
dev->data->dev_private = NULL;
struct pmd_internal *internal = NULL;
struct rte_eth_dev *eth_dev = NULL;
struct rte_ether_addr *eth_addr = NULL;
- struct rte_vhost_vring_state *vring_state = NULL;
- struct internal_list *list = NULL;
VHOST_LOG(INFO, "Creating VHOST-USER backend on numa socket %u\n",
numa_node);
- list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node);
- if (list == NULL)
- goto error;
-
/* reserve an ethdev entry */
eth_dev = rte_eth_vdev_allocate(dev, sizeof(*internal));
if (eth_dev == NULL)
*eth_addr = base_eth_addr;
eth_addr->addr_bytes[5] = eth_dev->data->port_id;
- vring_state = rte_zmalloc_socket(name,
- sizeof(*vring_state), 0, numa_node);
- if (vring_state == NULL)
- goto error;
-
/* now put it all together
* - store queue data in internal,
* - point eth_dev_data to internals
* - and point eth_dev structure to new eth_dev_data structure
*/
internal = eth_dev->data->dev_private;
- internal->dev_name = strdup(name);
- if (internal->dev_name == NULL)
- goto error;
- internal->iface_name = strdup(iface_name);
+ internal->iface_name = rte_malloc_socket(name, strlen(iface_name) + 1,
+ 0, numa_node);
if (internal->iface_name == NULL)
goto error;
-
- list->eth_dev = eth_dev;
- pthread_mutex_lock(&internal_list_lock);
- TAILQ_INSERT_TAIL(&internal_list, list, next);
- pthread_mutex_unlock(&internal_list_lock);
-
- rte_spinlock_init(&vring_state->lock);
- vring_states[eth_dev->data->port_id] = vring_state;
+ strcpy(internal->iface_name, iface_name);
data->nb_rx_queues = queues;
data->nb_tx_queues = queues;
internal->max_queues = queues;
internal->vid = -1;
+ internal->flags = flags;
+ internal->disable_flags = disable_flags;
data->dev_link = pmd_link;
data->dev_flags = RTE_ETH_DEV_INTR_LSC | RTE_ETH_DEV_CLOSE_REMOVE;
eth_dev->rx_pkt_burst = eth_vhost_rx;
eth_dev->tx_pkt_burst = eth_vhost_tx;
- if (rte_vhost_driver_register(iface_name, flags))
- goto error;
-
- if (disable_flags) {
- if (rte_vhost_driver_disable_features(iface_name,
- disable_flags))
- goto error;
- }
-
- if (rte_vhost_driver_callback_register(iface_name, &vhost_ops) < 0) {
- VHOST_LOG(ERR, "Can't register callbacks\n");
- goto error;
- }
-
- if (rte_vhost_driver_start(iface_name) < 0) {
- VHOST_LOG(ERR, "Failed to start driver for %s\n",
- iface_name);
- goto error;
- }
-
rte_eth_dev_probing_finish(eth_dev);
- return data->port_id;
+ return 0;
error:
- if (internal) {
- free(internal->iface_name);
- free(internal->dev_name);
- }
- rte_free(vring_state);
+ if (internal)
+ rte_free(internal->iface_name);
rte_eth_dev_release_port(eth_dev);
- rte_free(list);
return -1;
}
VHOST_LOG(ERR, "Failed to probe %s\n", name);
return -1;
}
- /* TODO: request info from primary to set up Rx and Tx */
+ eth_dev->rx_pkt_burst = eth_vhost_rx;
+ eth_dev->tx_pkt_burst = eth_vhost_tx;
eth_dev->dev_ops = &ops;
+ if (dev->device.numa_node == SOCKET_ID_ANY)
+ dev->device.numa_node = rte_socket_id();
eth_dev->device = &dev->device;
rte_eth_dev_probing_finish(eth_dev);
return 0;
if (dev->device.numa_node == SOCKET_ID_ANY)
dev->device.numa_node = rte_socket_id();
- eth_dev_vhost_create(dev, iface_name, queues, dev->device.numa_node,
- flags, disable_flags);
+ ret = eth_dev_vhost_create(dev, iface_name, queues,
+ dev->device.numa_node, flags, disable_flags);
+ if (ret == -1)
+ VHOST_LOG(ERR, "Failed to create %s\n", name);
out_free:
rte_kvargs_free(kvlist);
git.droids-corp.org / dpdk.git / blobdiff