#define ETH_VHOST_CLIENT_ARG "client"
#define ETH_VHOST_DEQUEUE_ZERO_COPY "dequeue-zero-copy"
-static const char *drivername = "VHOST PMD";
-
static const char *valid_arguments[] = {
ETH_VHOST_IFACE_ARG,
ETH_VHOST_QUEUES_ARG,
};
struct pmd_internal {
+ rte_atomic32_t dev_attached;
char *dev_name;
char *iface_name;
uint16_t max_queues;
- uint64_t flags;
-
- volatile uint16_t once;
+ rte_atomic32_t started;
};
struct internal_list {
*(uint64_t *)(((char *)vq)
+ vhost_rxport_stat_strings[t].offset);
}
+ xstats[count].id = count;
count++;
}
for (t = 0; t < VHOST_NB_XSTATS_TXPORT; t++) {
*(uint64_t *)(((char *)vq)
+ vhost_txport_stat_strings[t].offset);
}
+ xstats[count].id = count;
count++;
}
return count;
return list;
}
+static void
+update_queuing_status(struct rte_eth_dev *dev)
+{
+ struct pmd_internal *internal = dev->data->dev_private;
+ struct vhost_queue *vq;
+ unsigned int i;
+ int allow_queuing = 1;
+
+ if (rte_atomic32_read(&internal->started) == 0 ||
+ rte_atomic32_read(&internal->dev_attached) == 0)
+ allow_queuing = 0;
+
+ /* Wait until rx/tx_pkt_burst stops accessing vhost device */
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ vq = dev->data->rx_queues[i];
+ if (vq == NULL)
+ continue;
+ rte_atomic32_set(&vq->allow_queuing, allow_queuing);
+ while (rte_atomic32_read(&vq->while_queuing))
+ rte_pause();
+ }
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ vq = dev->data->tx_queues[i];
+ if (vq == NULL)
+ continue;
+ rte_atomic32_set(&vq->allow_queuing, allow_queuing);
+ while (rte_atomic32_read(&vq->while_queuing))
+ rte_pause();
+ }
+}
+
static int
new_device(int vid)
{
eth_dev->data->dev_link.link_status = ETH_LINK_UP;
- for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
- vq = eth_dev->data->rx_queues[i];
- if (vq == NULL)
- continue;
- rte_atomic32_set(&vq->allow_queuing, 1);
- }
- for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
- vq = eth_dev->data->tx_queues[i];
- if (vq == NULL)
- continue;
- rte_atomic32_set(&vq->allow_queuing, 1);
- }
+ rte_atomic32_set(&internal->dev_attached, 1);
+ update_queuing_status(eth_dev);
RTE_LOG(INFO, PMD, "New connection established\n");
- _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC);
+ _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
return 0;
}
destroy_device(int vid)
{
struct rte_eth_dev *eth_dev;
+ struct pmd_internal *internal;
struct vhost_queue *vq;
struct internal_list *list;
char ifname[PATH_MAX];
return;
}
eth_dev = list->eth_dev;
+ internal = eth_dev->data->dev_private;
- /* Wait until rx/tx_pkt_burst stops accessing vhost device */
- for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
- vq = eth_dev->data->rx_queues[i];
- if (vq == NULL)
- continue;
- rte_atomic32_set(&vq->allow_queuing, 0);
- while (rte_atomic32_read(&vq->while_queuing))
- rte_pause();
- }
- for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
- vq = eth_dev->data->tx_queues[i];
- if (vq == NULL)
- continue;
- rte_atomic32_set(&vq->allow_queuing, 0);
- while (rte_atomic32_read(&vq->while_queuing))
- rte_pause();
- }
+ rte_atomic32_set(&internal->dev_attached, 0);
+ update_queuing_status(eth_dev);
eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
RTE_LOG(INFO, PMD, "Connection closed\n");
- _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC);
+ _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
}
static int
RTE_LOG(INFO, PMD, "vring%u is %s\n",
vring, enable ? "enabled" : "disabled");
- _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_QUEUE_STATE);
+ _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_QUEUE_STATE, NULL);
return 0;
}
eth_dev_start(struct rte_eth_dev *dev)
{
struct pmd_internal *internal = dev->data->dev_private;
- int ret = 0;
- if (rte_atomic16_cmpset(&internal->once, 0, 1)) {
- ret = rte_vhost_driver_register(internal->iface_name,
- internal->flags);
- if (ret)
- return ret;
- }
+ rte_atomic32_set(&internal->started, 1);
+ update_queuing_status(dev);
- /* We need only one message handling thread */
- if (rte_atomic16_add_return(&nb_started_ports, 1) == 1)
- ret = vhost_driver_session_start();
-
- return ret;
+ return 0;
}
static void
{
struct pmd_internal *internal = dev->data->dev_private;
- if (rte_atomic16_cmpset(&internal->once, 1, 0))
- rte_vhost_driver_unregister(internal->iface_name);
+ rte_atomic32_set(&internal->started, 0);
+ update_queuing_status(dev);
+}
- if (rte_atomic16_sub_return(&nb_started_ports, 1) == 0)
- vhost_driver_session_stop();
+static void
+eth_dev_close(struct rte_eth_dev *dev)
+{
+ struct pmd_internal *internal;
+ struct internal_list *list;
+
+ internal = dev->data->dev_private;
+ if (!internal)
+ return;
+
+ rte_vhost_driver_unregister(internal->iface_name);
+
+ list = find_internal_resource(internal->iface_name);
+ if (!list)
+ return;
+
+ pthread_mutex_lock(&internal_list_lock);
+ TAILQ_REMOVE(&internal_list, list, next);
+ pthread_mutex_unlock(&internal_list_lock);
+ rte_free(list);
+
+ free(internal->dev_name);
+ free(internal->iface_name);
+ rte_free(internal);
}
static int
return;
}
- dev_info->driver_name = drivername;
dev_info->max_mac_addrs = 1;
dev_info->max_rx_pktlen = (uint32_t)-1;
dev_info->max_rx_queues = internal->max_queues;
rte_free(q);
}
+static int
+eth_tx_done_cleanup(void *txq __rte_unused, uint32_t free_cnt __rte_unused)
+{
+ /*
+ * vHost does not hang onto mbuf. eth_vhost_tx() copies packet data
+ * and releases mbuf, so nothing to cleanup.
+ */
+ return 0;
+}
+
static int
eth_link_update(struct rte_eth_dev *dev __rte_unused,
int wait_to_complete __rte_unused)
static const struct eth_dev_ops ops = {
.dev_start = eth_dev_start,
.dev_stop = eth_dev_stop,
+ .dev_close = eth_dev_close,
.dev_configure = eth_dev_configure,
.dev_infos_get = eth_dev_info,
.rx_queue_setup = eth_rx_queue_setup,
.tx_queue_setup = eth_tx_queue_setup,
.rx_queue_release = eth_queue_release,
.tx_queue_release = eth_queue_release,
+ .tx_done_cleanup = eth_tx_done_cleanup,
.link_update = eth_link_update,
.stats_get = eth_stats_get,
.stats_reset = eth_stats_reset,
.xstats_get_names = vhost_dev_xstats_get_names,
};
+static struct rte_vdev_driver pmd_vhost_drv;
+
static int
eth_dev_vhost_create(const char *name, char *iface_name, int16_t queues,
const unsigned numa_node, uint64_t flags)
if (vring_state == NULL)
goto error;
- TAILQ_INIT(ð_dev->link_intr_cbs);
-
/* now put it all together
* - store queue data in internal,
* - store numa_node info in ethdev data
internal->iface_name = strdup(iface_name);
if (internal->iface_name == NULL)
goto error;
- internal->flags = flags;
list->eth_dev = eth_dev;
pthread_mutex_lock(&internal_list_lock);
data->dev_flags =
RTE_ETH_DEV_DETACHABLE | RTE_ETH_DEV_INTR_LSC;
data->kdrv = RTE_KDRV_NONE;
- data->drv_name = internal->dev_name;
+ data->drv_name = pmd_vhost_drv.driver.name;
data->numa_node = numa_node;
/* finally assign rx and tx ops */
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;
+
+ /* We need only one message handling thread */
+ if (rte_atomic16_add_return(&nb_started_ports, 1) == 1) {
+ if (vhost_driver_session_start())
+ goto error;
+ }
+
return data->port_id;
error:
rte_pmd_vhost_remove(const char *name)
{
struct rte_eth_dev *eth_dev = NULL;
- struct pmd_internal *internal;
- struct internal_list *list;
unsigned int i;
RTE_LOG(INFO, PMD, "Un-Initializing pmd_vhost for %s\n", name);
if (eth_dev == NULL)
return -ENODEV;
- internal = eth_dev->data->dev_private;
- if (internal == NULL)
- return -ENODEV;
-
- list = find_internal_resource(internal->iface_name);
- if (list == NULL)
- return -ENODEV;
+ eth_dev_stop(eth_dev);
- pthread_mutex_lock(&internal_list_lock);
- TAILQ_REMOVE(&internal_list, list, next);
- pthread_mutex_unlock(&internal_list_lock);
- rte_free(list);
+ eth_dev_close(eth_dev);
- eth_dev_stop(eth_dev);
+ if (rte_atomic16_sub_return(&nb_started_ports, 1) == 0)
+ vhost_driver_session_stop();
rte_free(vring_states[eth_dev->data->port_id]);
vring_states[eth_dev->data->port_id] = NULL;
- free(internal->dev_name);
- free(internal->iface_name);
-
for (i = 0; i < eth_dev->data->nb_rx_queues; i++)
rte_free(eth_dev->data->rx_queues[i]);
for (i = 0; i < eth_dev->data->nb_tx_queues; i++)
rte_free(eth_dev->data->mac_addrs);
rte_free(eth_dev->data);
- rte_free(internal);
rte_eth_dev_release_port(eth_dev);
.remove = rte_pmd_vhost_remove,
};
-DRIVER_REGISTER_VDEV(net_vhost, pmd_vhost_drv);
-DRIVER_REGISTER_PARAM_STRING(net_vhost,
+RTE_PMD_REGISTER_VDEV(net_vhost, pmd_vhost_drv);
+RTE_PMD_REGISTER_ALIAS(net_vhost, eth_vhost);
+RTE_PMD_REGISTER_PARAM_STRING(net_vhost,
"iface=<ifc> "
"queues=<int>");
git.droids-corp.org / dpdk.git / blobdiff