[VHOST_USER_POSTCOPY_END] = "VHOST_USER_POSTCOPY_END",
[VHOST_USER_GET_INFLIGHT_FD] = "VHOST_USER_GET_INFLIGHT_FD",
[VHOST_USER_SET_INFLIGHT_FD] = "VHOST_USER_SET_INFLIGHT_FD",
+ [VHOST_USER_SET_STATUS] = "VHOST_USER_SET_STATUS",
+ [VHOST_USER_GET_STATUS] = "VHOST_USER_GET_STATUS",
};
static int send_vhost_reply(int sockfd, struct VhostUserMsg *msg);
int enable)
{
struct rte_vdpa_device *vdpa_dev = dev->vdpa_dev;
+ struct vhost_virtqueue *vq = dev->virtqueue[index];
+
+ /* Configure guest notifications on enable */
+ if (enable && vq->notif_enable != VIRTIO_UNINITIALIZED_NOTIF)
+ vhost_enable_guest_notification(dev, vq, vq->notif_enable);
if (vdpa_dev && vdpa_dev->ops->set_vring_state)
vdpa_dev->ops->set_vring_state(dev->vid, index, enable);
VHOST_LOG_CONFIG(ERR,
"(%d) received invalid negotiated features.\n",
dev->vid);
+ dev->flags |= VIRTIO_DEV_FEATURES_FAILED;
+ dev->status &= ~VIRTIO_DEVICE_STATUS_FEATURES_OK;
+
return RTE_VHOST_MSG_RESULT_ERR;
}
}
vdpa_dev = dev->vdpa_dev;
- if (vdpa_dev && vdpa_dev->ops->set_features)
+ if (vdpa_dev)
vdpa_dev->ops->set_features(dev->vid);
+ dev->flags &= ~VIRTIO_DEV_FEATURES_FAILED;
return RTE_VHOST_MSG_RESULT_OK;
}
} else {
if (vq->shadow_used_split)
rte_free(vq->shadow_used_split);
+
vq->shadow_used_split = rte_malloc(NULL,
vq->size * sizeof(struct vring_used_elem),
RTE_CACHE_LINE_SIZE);
+
if (!vq->shadow_used_split) {
VHOST_LOG_CONFIG(ERR,
- "failed to allocate memory for shadow used ring.\n");
+ "failed to allocate memory for vq internal data.\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
}
goto err_mmap;
}
- populate = (dev->dequeue_zero_copy) ? MAP_POPULATE : 0;
+ populate = (dev->dequeue_zero_copy || dev->async_copy) ?
+ MAP_POPULATE : 0;
mmap_addr = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
MAP_SHARED | populate, fd, 0);
reg->host_user_addr = (uint64_t)(uintptr_t)mmap_addr +
mmap_offset;
- if (dev->dequeue_zero_copy)
+ if (dev->dequeue_zero_copy || dev->async_copy)
if (add_guest_pages(dev, reg, alignment) < 0) {
VHOST_LOG_CONFIG(ERR,
"adding guest pages to region %u failed.\n",
struct vhost_virtqueue *vq;
uint32_t i;
+ if (dev->flags & VIRTIO_DEV_READY)
+ return 1;
+
if (dev->nr_vring < VIRTIO_DEV_NUM_VQS_TO_BE_READY)
return 0;
return 0;
}
+ /* If supported, ensure the frontend is really done with config */
+ if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS))
+ if (!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER_OK))
+ return 0;
+
+ dev->flags |= VIRTIO_DEV_READY;
+
if (!(dev->flags & VIRTIO_DEV_RUNNING))
VHOST_LOG_CONFIG(INFO,
"virtio is now ready for processing.\n");
vq = dev->virtqueue[file.index];
if (vq->ready) {
- vhost_user_notify_queue_state(dev, file.index, 0);
vq->ready = 0;
+ vhost_user_notify_queue_state(dev, file.index, 0);
}
if (vq->callfd >= 0)
}
if (vq->ready) {
- vhost_user_notify_queue_state(dev, file.index, 0);
vq->ready = 0;
+ vhost_user_notify_queue_state(dev, file.index, 0);
}
if (vq->kickfd >= 0)
drain_zmbuf_list(vq);
rte_free(vq->zmbufs);
+ vq->zmbufs = NULL;
}
/*
} else {
rte_free(vq->shadow_used_split);
vq->shadow_used_split = NULL;
+ if (vq->async_pkts_pending)
+ rte_free(vq->async_pkts_pending);
+ if (vq->async_pending_info)
+ rte_free(vq->async_pending_info);
+ vq->async_pkts_pending = NULL;
+ vq->async_pending_info = NULL;
}
rte_free(vq->batch_copy_elems);
"set queue enable: %d to qp idx: %d\n",
enable, index);
+ if (!enable && dev->virtqueue[index]->async_registered) {
+ if (dev->virtqueue[index]->async_pkts_inflight_n) {
+ VHOST_LOG_CONFIG(ERR, "failed to disable vring. "
+ "async inflight packets must be completed first\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ }
+
/* On disable, rings have to be stopped being processed. */
if (!enable && dev->dequeue_zero_copy)
drain_zmbuf_list(dev->virtqueue[index]);
return RTE_VHOST_MSG_RESULT_REPLY;
}
+static int
+vhost_user_get_status(struct virtio_net **pdev, struct VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ msg->payload.u64 = dev->status;
+ msg->size = sizeof(msg->payload.u64);
+ msg->fd_num = 0;
+
+ return RTE_VHOST_MSG_RESULT_REPLY;
+}
+
+static int
+vhost_user_set_status(struct virtio_net **pdev, struct VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ /* As per Virtio specification, the device status is 8bits long */
+ if (msg->payload.u64 > UINT8_MAX) {
+ VHOST_LOG_CONFIG(ERR, "Invalid VHOST_USER_SET_STATUS payload 0x%" PRIx64 "\n",
+ msg->payload.u64);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ dev->status = msg->payload.u64;
+
+ if ((dev->status & VIRTIO_DEVICE_STATUS_FEATURES_OK) &&
+ (dev->flags & VIRTIO_DEV_FEATURES_FAILED)) {
+ VHOST_LOG_CONFIG(ERR, "FEATURES_OK bit is set but feature negotiation failed\n");
+ /*
+ * Clear the bit to let the driver know about the feature
+ * negotiation failure
+ */
+ dev->status &= ~VIRTIO_DEVICE_STATUS_FEATURES_OK;
+ }
+
+ VHOST_LOG_CONFIG(INFO, "New device status(0x%08x):\n"
+ "\t-ACKNOWLEDGE: %u\n"
+ "\t-DRIVER: %u\n"
+ "\t-FEATURES_OK: %u\n"
+ "\t-DRIVER_OK: %u\n"
+ "\t-DEVICE_NEED_RESET: %u\n"
+ "\t-FAILED: %u\n",
+ dev->status,
+ !!(dev->status & VIRTIO_DEVICE_STATUS_ACK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_FEATURES_OK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER_OK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DEV_NEED_RESET),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_FAILED));
+
+ return RTE_VHOST_MSG_RESULT_OK;
+}
+
typedef int (*vhost_message_handler_t)(struct virtio_net **pdev,
struct VhostUserMsg *msg,
int main_fd);
[VHOST_USER_POSTCOPY_END] = vhost_user_postcopy_end,
[VHOST_USER_GET_INFLIGHT_FD] = vhost_user_get_inflight_fd,
[VHOST_USER_SET_INFLIGHT_FD] = vhost_user_set_inflight_fd,
+ [VHOST_USER_SET_STATUS] = vhost_user_set_status,
+ [VHOST_USER_GET_STATUS] = vhost_user_get_status,
};
/* return bytes# of read on success or negative val on failure. */
bool cur_ready = vq_is_ready(dev, vq);
if (cur_ready != (vq && vq->ready)) {
- vhost_user_notify_queue_state(dev, i, cur_ready);
vq->ready = cur_ready;
+ vhost_user_notify_queue_state(dev, i, cur_ready);
}
}
- if (!(dev->flags & VIRTIO_DEV_RUNNING) && virtio_is_ready(dev)) {
- dev->flags |= VIRTIO_DEV_READY;
+ if (!virtio_is_ready(dev))
+ goto out;
- if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
- if (dev->dequeue_zero_copy) {
- VHOST_LOG_CONFIG(INFO,
- "dequeue zero copy is enabled\n");
- }
+ /*
+ * Virtio is now ready. If not done already, it is time
+ * to notify the application it can process the rings and
+ * configure the vDPA device if present.
+ */
- if (dev->notify_ops->new_device(dev->vid) == 0)
- dev->flags |= VIRTIO_DEV_RUNNING;
- }
+ if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
+ if (dev->notify_ops->new_device(dev->vid) == 0)
+ dev->flags |= VIRTIO_DEV_RUNNING;
}
vdpa_dev = dev->vdpa_dev;
- if (vdpa_dev && virtio_is_ready(dev) &&
- !(dev->flags & VIRTIO_DEV_VDPA_CONFIGURED)) {
- if (vdpa_dev->ops->dev_conf)
- vdpa_dev->ops->dev_conf(dev->vid);
- dev->flags |= VIRTIO_DEV_VDPA_CONFIGURED;
+ if (!vdpa_dev)
+ goto out;
+
+ if (!(dev->flags & VIRTIO_DEV_VDPA_CONFIGURED)) {
+ if (vdpa_dev->ops->dev_conf(dev->vid))
+ VHOST_LOG_CONFIG(ERR,
+ "Failed to configure vDPA device\n");
+ else
+ dev->flags |= VIRTIO_DEV_VDPA_CONFIGURED;
}
+out:
return 0;
}
git.droids-corp.org / dpdk.git / blobdiff