#include <stdbool.h>
#include <rte_mbuf.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
+#include <rte_ethdev_vdev.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
-#include <rte_vdev.h>
+#include <rte_bus_vdev.h>
#include <rte_kvargs.h>
#include <rte_vhost.h>
#include <rte_spinlock.h>
#define ETH_VHOST_QUEUES_ARG "queues"
#define ETH_VHOST_CLIENT_ARG "client"
#define ETH_VHOST_DEQUEUE_ZERO_COPY "dequeue-zero-copy"
+#define ETH_VHOST_IOMMU_SUPPORT "iommu-support"
#define VHOST_MAX_PKT_BURST 32
static const char *valid_arguments[] = {
ETH_VHOST_QUEUES_ARG,
ETH_VHOST_CLIENT_ARG,
ETH_VHOST_DEQUEUE_ZERO_COPY,
+ ETH_VHOST_IOMMU_SUPPORT,
NULL
};
rte_atomic32_t while_queuing;
struct pmd_internal *internal;
struct rte_mempool *mb_pool;
- uint8_t port;
+ uint16_t port;
uint16_t virtqueue_id;
struct vhost_stats stats;
};
char *dev_name;
char *iface_name;
uint16_t max_queues;
+ uint16_t vid;
rte_atomic32_t started;
+ uint8_t vlan_strip;
};
struct internal_list {
for (i = 0; likely(i < nb_rx); i++) {
bufs[i]->port = r->port;
+ bufs[i]->ol_flags = 0;
+ bufs[i]->vlan_tci = 0;
+
+ if (r->internal->vlan_strip)
+ rte_vlan_strip(bufs[i]);
+
r->stats.bytes += bufs[i]->pkt_len;
}
{
struct vhost_queue *r = q;
uint16_t i, nb_tx = 0;
- uint16_t nb_send = nb_bufs;
+ uint16_t nb_send = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
goto out;
+ for (i = 0; i < nb_bufs; i++) {
+ struct rte_mbuf *m = bufs[i];
+
+ /* Do VLAN tag insertion */
+ if (m->ol_flags & PKT_TX_VLAN_PKT) {
+ int error = rte_vlan_insert(&m);
+ if (unlikely(error)) {
+ rte_pktmbuf_free(m);
+ continue;
+ }
+ }
+
+ bufs[nb_send] = m;
+ ++nb_send;
+ }
+
/* Enqueue packets to guest RX queue */
while (nb_send) {
uint16_t nb_pkts;
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->hw_vlan_strip;
+
+ if (rxmode->hw_vlan_filter)
+ RTE_LOG(WARNING, PMD,
+ "vhost(%s): vlan filtering not available\n",
+ internal->dev_name);
+
return 0;
}
return list;
}
+static int
+eth_rxq_intr_enable(struct rte_eth_dev *dev, uint16_t qid)
+{
+ struct rte_vhost_vring vring;
+ struct vhost_queue *vq;
+ int ret = 0;
+
+ vq = dev->data->rx_queues[qid];
+ if (!vq) {
+ RTE_LOG(ERR, PMD, "rxq%d is not setup yet\n", qid);
+ return -1;
+ }
+
+ ret = rte_vhost_get_vhost_vring(vq->vid, (qid << 1) + 1, &vring);
+ if (ret < 0) {
+ RTE_LOG(ERR, PMD, "Failed to get rxq%d's vring\n", qid);
+ return ret;
+ }
+ RTE_LOG(INFO, PMD, "Enable interrupt for rxq%d\n", qid);
+ rte_vhost_enable_guest_notification(vq->vid, (qid << 1) + 1, 1);
+ rte_wmb();
+
+ return ret;
+}
+
+static int
+eth_rxq_intr_disable(struct rte_eth_dev *dev, uint16_t qid)
+{
+ struct rte_vhost_vring vring;
+ struct vhost_queue *vq;
+ int ret = 0;
+
+ vq = dev->data->rx_queues[qid];
+ if (!vq) {
+ RTE_LOG(ERR, PMD, "rxq%d is not setup yet\n", qid);
+ return -1;
+ }
+
+ ret = rte_vhost_get_vhost_vring(vq->vid, (qid << 1) + 1, &vring);
+ if (ret < 0) {
+ RTE_LOG(ERR, PMD, "Failed to get rxq%d's vring", qid);
+ return ret;
+ }
+ RTE_LOG(INFO, PMD, "Disable interrupt for rxq%d\n", qid);
+ rte_vhost_enable_guest_notification(vq->vid, (qid << 1) + 1, 0);
+ rte_wmb();
+
+ return 0;
+}
+
+static void
+eth_vhost_uninstall_intr(struct rte_eth_dev *dev)
+{
+ struct rte_intr_handle *intr_handle = dev->intr_handle;
+
+ if (intr_handle) {
+ if (intr_handle->intr_vec)
+ free(intr_handle->intr_vec);
+ free(intr_handle);
+ }
+
+ dev->intr_handle = NULL;
+}
+
+static int
+eth_vhost_install_intr(struct rte_eth_dev *dev)
+{
+ struct rte_vhost_vring vring;
+ struct vhost_queue *vq;
+ int count = 0;
+ int nb_rxq = dev->data->nb_rx_queues;
+ int i;
+ int ret;
+
+ /* uninstall firstly if we are reconnecting */
+ if (dev->intr_handle)
+ eth_vhost_uninstall_intr(dev);
+
+ dev->intr_handle = malloc(sizeof(*dev->intr_handle));
+ if (!dev->intr_handle) {
+ RTE_LOG(ERR, PMD, "Fail to allocate intr_handle\n");
+ return -ENOMEM;
+ }
+ memset(dev->intr_handle, 0, sizeof(*dev->intr_handle));
+
+ dev->intr_handle->efd_counter_size = sizeof(uint64_t);
+
+ dev->intr_handle->intr_vec =
+ malloc(nb_rxq * sizeof(dev->intr_handle->intr_vec[0]));
+
+ if (!dev->intr_handle->intr_vec) {
+ RTE_LOG(ERR, PMD,
+ "Failed to allocate memory for interrupt vector\n");
+ free(dev->intr_handle);
+ return -ENOMEM;
+ }
+
+ RTE_LOG(INFO, PMD, "Prepare intr vec\n");
+ for (i = 0; i < nb_rxq; i++) {
+ vq = dev->data->rx_queues[i];
+ if (!vq) {
+ RTE_LOG(INFO, PMD, "rxq-%d not setup yet, skip!\n", i);
+ continue;
+ }
+
+ ret = rte_vhost_get_vhost_vring(vq->vid, (i << 1) + 1, &vring);
+ if (ret < 0) {
+ RTE_LOG(INFO, PMD,
+ "Failed to get rxq-%d's vring, skip!\n", i);
+ continue;
+ }
+
+ if (vring.kickfd < 0) {
+ RTE_LOG(INFO, PMD,
+ "rxq-%d's kickfd is invalid, skip!\n", i);
+ continue;
+ }
+ dev->intr_handle->intr_vec[i] = RTE_INTR_VEC_RXTX_OFFSET + i;
+ dev->intr_handle->efds[i] = vring.kickfd;
+ count++;
+ RTE_LOG(INFO, PMD, "Installed intr vec for rxq-%d\n", i);
+ }
+
+ dev->intr_handle->nb_efd = count;
+ dev->intr_handle->max_intr = count + 1;
+ dev->intr_handle->type = RTE_INTR_HANDLE_VDEV;
+
+ return 0;
+}
+
static void
update_queuing_status(struct rte_eth_dev *dev)
{
unsigned int i;
int allow_queuing = 1;
+ if (!dev->data->rx_queues || !dev->data->tx_queues)
+ return;
+
if (rte_atomic32_read(&internal->started) == 0 ||
rte_atomic32_read(&internal->dev_attached) == 0)
allow_queuing = 0;
}
}
+static void
+queue_setup(struct rte_eth_dev *eth_dev, struct pmd_internal *internal)
+{
+ struct vhost_queue *vq;
+ int i;
+
+ for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
+ vq = eth_dev->data->rx_queues[i];
+ if (!vq)
+ continue;
+ vq->vid = internal->vid;
+ vq->internal = internal;
+ vq->port = eth_dev->data->port_id;
+ }
+ for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
+ vq = eth_dev->data->tx_queues[i];
+ if (!vq)
+ continue;
+ vq->vid = internal->vid;
+ vq->internal = internal;
+ vq->port = eth_dev->data->port_id;
+ }
+}
+
static int
new_device(int vid)
{
struct rte_eth_dev *eth_dev;
struct internal_list *list;
struct pmd_internal *internal;
- struct vhost_queue *vq;
+ struct rte_eth_conf *dev_conf;
unsigned i;
char ifname[PATH_MAX];
#ifdef RTE_LIBRTE_VHOST_NUMA
eth_dev = list->eth_dev;
internal = eth_dev->data->dev_private;
+ dev_conf = ð_dev->data->dev_conf;
#ifdef RTE_LIBRTE_VHOST_NUMA
newnode = rte_vhost_get_numa_node(vid);
eth_dev->data->numa_node = newnode;
#endif
- for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
- vq = eth_dev->data->rx_queues[i];
- if (vq == NULL)
- continue;
- vq->vid = vid;
- vq->internal = internal;
- vq->port = eth_dev->data->port_id;
- }
- for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
- vq = eth_dev->data->tx_queues[i];
- if (vq == NULL)
- continue;
- vq->vid = vid;
- vq->internal = internal;
- vq->port = eth_dev->data->port_id;
+ internal->vid = vid;
+ if (rte_atomic32_read(&internal->started) == 1) {
+ queue_setup(eth_dev, internal);
+
+ if (dev_conf->intr_conf.rxq) {
+ if (eth_vhost_install_intr(eth_dev) < 0) {
+ RTE_LOG(INFO, PMD,
+ "Failed to install interrupt handler.");
+ return -1;
+ }
+ }
+ } else {
+ RTE_LOG(INFO, PMD, "RX/TX queues not exist yet\n");
}
for (i = 0; i < rte_vhost_get_vring_num(vid); i++)
rte_atomic32_set(&internal->dev_attached, 1);
update_queuing_status(eth_dev);
- RTE_LOG(INFO, PMD, "New connection established\n");
+ RTE_LOG(INFO, PMD, "Vhost device %d created\n", vid);
_rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
- for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
- vq = eth_dev->data->rx_queues[i];
- if (vq == NULL)
- continue;
- vq->vid = -1;
- }
- for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
- vq = eth_dev->data->tx_queues[i];
- if (vq == NULL)
- continue;
- vq->vid = -1;
+ if (eth_dev->data->rx_queues && eth_dev->data->tx_queues) {
+ for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
+ vq = eth_dev->data->rx_queues[i];
+ if (!vq)
+ continue;
+ vq->vid = -1;
+ }
+ for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
+ vq = eth_dev->data->tx_queues[i];
+ if (!vq)
+ continue;
+ vq->vid = -1;
+ }
}
state = vring_states[eth_dev->data->port_id];
state->max_vring = 0;
rte_spinlock_unlock(&state->lock);
- RTE_LOG(INFO, PMD, "Connection closed\n");
+ RTE_LOG(INFO, PMD, "Vhost device %d destroyed\n", vid);
+ eth_vhost_uninstall_intr(eth_dev);
_rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
}
};
int
-rte_eth_vhost_get_queue_event(uint8_t port_id,
+rte_eth_vhost_get_queue_event(uint16_t port_id,
struct rte_eth_vhost_queue_event *event)
{
struct rte_vhost_vring_state *state;
}
int
-rte_eth_vhost_get_vid_from_port_id(uint8_t port_id)
+rte_eth_vhost_get_vid_from_port_id(uint16_t port_id)
{
struct internal_list *list;
struct rte_eth_dev *eth_dev;
}
static int
-eth_dev_start(struct rte_eth_dev *dev)
+eth_dev_start(struct rte_eth_dev *eth_dev)
{
- struct pmd_internal *internal = dev->data->dev_private;
+ struct pmd_internal *internal = eth_dev->data->dev_private;
+ struct rte_eth_conf *dev_conf = ð_dev->data->dev_conf;
+
+ queue_setup(eth_dev, internal);
+
+ if (rte_atomic32_read(&internal->dev_attached) == 1) {
+ if (dev_conf->intr_conf.rxq) {
+ if (eth_vhost_install_intr(eth_dev) < 0) {
+ RTE_LOG(INFO, PMD,
+ "Failed to install interrupt handler.");
+ return -1;
+ }
+ }
+ }
rte_atomic32_set(&internal->started, 1);
- update_queuing_status(dev);
+ update_queuing_status(eth_dev);
return 0;
}
{
struct pmd_internal *internal;
struct internal_list *list;
+ unsigned int i;
internal = dev->data->dev_private;
if (!internal)
return;
+ eth_dev_stop(dev);
+
rte_vhost_driver_unregister(internal->iface_name);
list = find_internal_resource(internal->iface_name);
pthread_mutex_unlock(&internal_list_lock);
rte_free(list);
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++)
+ rte_free(dev->data->rx_queues[i]);
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++)
+ rte_free(dev->data->tx_queues[i]);
+
+ rte_free(dev->data->mac_addrs);
free(internal->dev_name);
free(internal->iface_name);
rte_free(internal);
+
+ dev->data->dev_private = NULL;
}
static int
dev_info->min_rx_bufsize = 0;
}
-static void
+static int
eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
unsigned i;
stats->oerrors = tx_missed_total;
stats->ibytes = rx_total_bytes;
stats->obytes = tx_total_bytes;
+
+ return 0;
}
static void
return 0;
}
+static uint32_t
+eth_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+ struct vhost_queue *vq;
+
+ vq = dev->data->rx_queues[rx_queue_id];
+ if (vq == NULL)
+ return 0;
+
+ return rte_vhost_rx_queue_count(vq->vid, vq->virtqueue_id);
+}
+
static const struct eth_dev_ops ops = {
.dev_start = eth_dev_start,
.dev_stop = eth_dev_stop,
.rx_queue_release = eth_queue_release,
.tx_queue_release = eth_queue_release,
.tx_done_cleanup = eth_tx_done_cleanup,
+ .rx_queue_count = eth_rx_queue_count,
.link_update = eth_link_update,
.stats_get = eth_stats_get,
.stats_reset = eth_stats_reset,
.xstats_reset = vhost_dev_xstats_reset,
.xstats_get = vhost_dev_xstats_get,
.xstats_get_names = vhost_dev_xstats_get_names,
+ .rx_queue_intr_enable = eth_rxq_intr_enable,
+ .rx_queue_intr_disable = eth_rxq_intr_disable,
};
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)
+eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
+ int16_t queues, const unsigned int numa_node, uint64_t flags)
{
- struct rte_eth_dev_data *data = NULL;
+ const char *name = rte_vdev_device_name(dev);
+ struct rte_eth_dev_data *data;
struct pmd_internal *internal = NULL;
struct rte_eth_dev *eth_dev = NULL;
struct ether_addr *eth_addr = NULL;
RTE_LOG(INFO, PMD, "Creating VHOST-USER backend on numa socket %u\n",
numa_node);
- /* now do all data allocation - for eth_dev structure, dummy pci driver
- * and internal (private) data
- */
- data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
- if (data == NULL)
- goto error;
-
- internal = rte_zmalloc_socket(name, sizeof(*internal), 0, numa_node);
- if (internal == NULL)
- goto error;
-
list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node);
if (list == NULL)
goto error;
/* reserve an ethdev entry */
- eth_dev = rte_eth_dev_allocate(name);
+ eth_dev = rte_eth_vdev_allocate(dev, sizeof(*internal));
if (eth_dev == NULL)
goto error;
/* now put it all together
* - store queue data in internal,
- * - store numa_node info in ethdev data
* - 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;
rte_spinlock_init(&vring_state->lock);
vring_states[eth_dev->data->port_id] = vring_state;
- data->dev_private = internal;
- data->port_id = eth_dev->data->port_id;
- memmove(data->name, eth_dev->data->name, sizeof(data->name));
+ data = eth_dev->data;
data->nb_rx_queues = queues;
data->nb_tx_queues = queues;
internal->max_queues = queues;
data->dev_link = pmd_link;
data->mac_addrs = eth_addr;
+ data->dev_flags = RTE_ETH_DEV_INTR_LSC;
- /* We'll replace the 'data' originally allocated by eth_dev. So the
- * vhost PMD resources won't be shared between multi processes.
- */
- eth_dev->data = data;
eth_dev->dev_ops = &ops;
- eth_dev->driver = NULL;
- data->dev_flags =
- RTE_ETH_DEV_DETACHABLE | RTE_ETH_DEV_INTR_LSC;
- data->kdrv = RTE_KDRV_NONE;
- 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;
return data->port_id;
error:
- if (internal)
+ if (internal) {
+ free(internal->iface_name);
free(internal->dev_name);
+ }
rte_free(vring_state);
rte_free(eth_addr);
if (eth_dev)
rte_eth_dev_release_port(eth_dev);
rte_free(internal);
rte_free(list);
- rte_free(data);
return -1;
}
static int
rte_pmd_vhost_probe(struct rte_vdev_device *dev)
{
- const char *name;
struct rte_kvargs *kvlist = NULL;
int ret = 0;
char *iface_name;
uint64_t flags = 0;
int client_mode = 0;
int dequeue_zero_copy = 0;
+ int iommu_support = 0;
- name = rte_vdev_device_name(dev);
- RTE_LOG(INFO, PMD, "Initializing pmd_vhost for %s\n", name);
+ RTE_LOG(INFO, PMD, "Initializing pmd_vhost for %s\n",
+ rte_vdev_device_name(dev));
kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_arguments);
if (kvlist == NULL)
flags |= RTE_VHOST_USER_DEQUEUE_ZERO_COPY;
}
- eth_dev_vhost_create(name, iface_name, queues, rte_socket_id(), flags);
+ if (rte_kvargs_count(kvlist, ETH_VHOST_IOMMU_SUPPORT) == 1) {
+ ret = rte_kvargs_process(kvlist, ETH_VHOST_IOMMU_SUPPORT,
+ &open_int, &iommu_support);
+ if (ret < 0)
+ goto out_free;
+
+ if (iommu_support)
+ flags |= RTE_VHOST_USER_IOMMU_SUPPORT;
+ }
+
+ 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);
out_free:
rte_kvargs_free(kvlist);
{
const char *name;
struct rte_eth_dev *eth_dev = NULL;
- unsigned int i;
name = rte_vdev_device_name(dev);
RTE_LOG(INFO, PMD, "Un-Initializing pmd_vhost for %s\n", name);
if (eth_dev == NULL)
return -ENODEV;
- eth_dev_stop(eth_dev);
-
eth_dev_close(eth_dev);
rte_free(vring_states[eth_dev->data->port_id]);
vring_states[eth_dev->data->port_id] = NULL;
- 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->tx_queues[i]);
-
- rte_free(eth_dev->data->mac_addrs);
- rte_free(eth_dev->data);
-
rte_eth_dev_release_port(eth_dev);
return 0;
git.droids-corp.org / dpdk.git / blobdiff