VIRTIO_ F_NOTIFY_ON_EMPTY feature is negotiated, indicating that: the transmission queue is completely emptied. The normal behavior in this interrupt handler is to retrieve and: new descriptors from the used ring and free the corresponding: headers and packets. Setting Up Receive Buffers: It is generally a good idea to keep the receive virtqueue as, VIRTIO_ F_NOTIFY_ON_EMPTY ,} static struct virtio_driver virtio_net = {. feature_table = features,. feature_table_size = ARRAY_SIZE (features),. driver. name = KBUILD_MODNAME,. driver. owner = THIS_MODULE,. id_table = id_table,. probe = virtnet_probe,. remove = __devexit_p (virtnet_remove),. config_changed = virtnet_config_changed,} static int __init init (void), virtio_ f_notify_on_empty , true) hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n) hwaddr virtio_queue_get_avail_addr (VirtIODevice *vdev, int n), re: (virtio-13) remove virtio_ f_notify_on_empty ? From Rusty Russell on Mon, 19 Aug 2013 01:33:31 -0700 (PDT) [OASIS Issue Tracker].
See subj net: skb_orphan on dev_hard_start_xmit.] [ rusty also seems to be suggesting that disabling VIRTIO_ F_NOTIFY_ON_EMPTY on the host should help the case where the host out-paces the guest ] 4. when queue is stopped or when first packet was sent after device was.
11/5/2019 · + (1ull f_notify_on_empty ) | + (1ull << virtio_f_any_layout) | + (1ull << virtio_f_version_1) | + (1ull << virtio_f_iommu_platform) | + (1ull << virtio_f_ring_packed) | + (1ull << virtio_f_order_platform) | + (1ull << virtio_ring_f_indirect_desc) | + (1ull << virtio_ring_f_event_idx), + + vhost_mdev_net_features = vhost_mdev_features |, 5/28/2015 · And I think VIRTIO_ F_NOTIFY_ON_EMPTY is safe to move to DEFINE_VIRTIO_COMMON_FEATURES: it's not set on s390 ATM but there's no real reason for this. In fact if you really want the truth, we only want it for virtio net, but we can't change it for old machine types.[OASIS Issue Tracker] (VIRTIO-13) Remove VIRTIO_ F_NOTIFY_ON_EMPTY ? From OASIS Issues Tracker on Wed, 26 Mar 2014 17:02:25 -0700 (PDT) [OASIS Issue Tracker] (VIRTIO-20) block: remove ioprio field From OASIS Issues Tracker on Wed, 26 Mar 2014 17:02:25 -0700 (PDT), + !vhost_has_feature(dev, VIRTIO_ F_NOTIFY_ON_EMPTY ))) + return + + /* Send the Guest an interrupt tell them we used something up. */ + if (vq->call_ctx) + eventfd_signal(vq->call_ctx, 1) +} + +/* And here’s the combo meal deal. Supersize me! */ +void vhost_add_used_and_trigger(struct vhost_dev *dev, + struct vhost_virtqueue *vq,, VHOST_FEATURES = (1ULL F_NOTIFY_ON_EMPTY ) | 236 (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | 237 (1ULL << VIRTIO_RING_F_EVENT_IDX) | 238 (1ULL << VHOST_F_LOG_ALL) | 239 (1ULL << VIRTIO_F_ANY_LAYOUT) | 240 (1ULL << VIRTIO_F_VERSION_1) 241} 242: 243: static inline bool vhost_has_feature(struct vhost_virtqueue …
