search for: vhost_set_vring_used_base

Displaying 12 results from an estimated 12 matches for "vhost_set_vring_used_base".

[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 12
2
[PATCH net-next V2 6/8] vhost: packed ring support
...ST_GET_VRING_BASE: > s.index = idx; > s.num = vq->last_avail_idx; > + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) > + s.num |= vq->last_avail_wrap_counter << 31; > + if (copy_to_user(argp, &s, sizeof(s))) > + r = -EFAULT; > + break; > + case VHOST_SET_VRING_USED_BASE: > + /* Moving base with an active backend? > + * You don't want to do that. > + */ > + if (vq->private_data) { > + r = -EBUSY; > + break; > + } > + if (copy_from_user(&s, argp, sizeof(s))) { > + r = -EFAULT; > + break; > + } > + if (...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 12
2
[PATCH net-next V2 6/8] vhost: packed ring support
...ST_GET_VRING_BASE: > s.index = idx; > s.num = vq->last_avail_idx; > + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) > + s.num |= vq->last_avail_wrap_counter << 31; > + if (copy_to_user(argp, &s, sizeof(s))) > + r = -EFAULT; > + break; > + case VHOST_SET_VRING_USED_BASE: > + /* Moving base with an active backend? > + * You don't want to do that. > + */ > + if (vq->private_data) { > + r = -EBUSY; > + break; > + } > + if (copy_from_user(&s, argp, sizeof(s))) { > + r = -EFAULT; > + break; > + } > + if (...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 15
2
[PATCH net-next V2 6/8] vhost: packed ring support
...s.num = vq->last_avail_idx; >>> + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) >>> + s.num |= vq->last_avail_wrap_counter << 31; >>> + if (copy_to_user(argp, &s, sizeof(s))) >>> + r = -EFAULT; >>> + break; >>> + case VHOST_SET_VRING_USED_BASE: >>> + /* Moving base with an active backend? >>> + * You don't want to do that. >>> + */ >>> + if (vq->private_data) { >>> + r = -EBUSY; >>> + break; >>> + } >>> + if (copy_from_user(&s, argp, sizeof(s))...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 15
2
[PATCH net-next V2 6/8] vhost: packed ring support
...s.num = vq->last_avail_idx; >>> + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) >>> + s.num |= vq->last_avail_wrap_counter << 31; >>> + if (copy_to_user(argp, &s, sizeof(s))) >>> + r = -EFAULT; >>> + break; >>> + case VHOST_SET_VRING_USED_BASE: >>> + /* Moving base with an active backend? >>> + * You don't want to do that. >>> + */ >>> + if (vq->private_data) { >>> + r = -EBUSY; >>> + break; >>> + } >>> + if (copy_from_user(&s, argp, sizeof(s))...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 15
1
[PATCH net-next V2 6/8] vhost: packed ring support
...;> + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) >>>>> + s.num |= vq->last_avail_wrap_counter << 31; >>>>> + if (copy_to_user(argp, &s, sizeof(s))) >>>>> + r = -EFAULT; >>>>> + break; >>>>> + case VHOST_SET_VRING_USED_BASE: >>>>> + /* Moving base with an active backend? >>>>> + * You don't want to do that. >>>>> + */ >>>>> + if (vq->private_data) { >>>>> + r = -EBUSY; >>>>> + break; >>>>> + } &gt...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 12
0
[PATCH net-next V2 6/8] vhost: packed ring support
...= idx; > > s.num = vq->last_avail_idx; > > + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) > > + s.num |= vq->last_avail_wrap_counter << 31; > > + if (copy_to_user(argp, &s, sizeof(s))) > > + r = -EFAULT; > > + break; > > + case VHOST_SET_VRING_USED_BASE: > > + /* Moving base with an active backend? > > + * You don't want to do that. > > + */ > > + if (vq->private_data) { > > + r = -EBUSY; > > + break; > > + } > > + if (copy_from_user(&s, argp, sizeof(s))) { > > + r = -E...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Oct 15
0
[PATCH net-next V2 6/8] vhost: packed ring support
...> > + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) > > > > + s.num |= vq->last_avail_wrap_counter << 31; > > > > + if (copy_to_user(argp, &s, sizeof(s))) > > > > + r = -EFAULT; > > > > + break; > > > > + case VHOST_SET_VRING_USED_BASE: > > > > + /* Moving base with an active backend? > > > > + * You don't want to do that. > > > > + */ > > > > + if (vq->private_data) { > > > > + r = -EBUSY; > > > > + break; > > > > + } > >...
[PATCH net-next V2 6/8] vhost: packed ring support
2018 Jul 16
0
[PATCH net-next V2 6/8] vhost: packed ring support
..._wrap_counter; + } break; case VHOST_GET_VRING_BASE: s.index = idx; s.num = vq->last_avail_idx; + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) + s.num |= vq->last_avail_wrap_counter << 31; + if (copy_to_user(argp, &s, sizeof(s))) + r = -EFAULT; + break; + case VHOST_SET_VRING_USED_BASE: + /* Moving base with an active backend? + * You don't want to do that. + */ + if (vq->private_data) { + r = -EBUSY; + break; + } + if (copy_from_user(&s, argp, sizeof(s))) { + r = -EFAULT; + break; + } + if (vhost_has_feature(vq, VIRTIO_F_RING_PACKED)) { + wrap_coun...
[PATCH net-next V2 0/8] Packed virtqueue support for vhost
2018 Jul 16
11
[PATCH net-next V2 0/8] Packed virtqueue support for vhost
Hi all: This series implements packed virtqueues. The code were tested with Tiwei's guest driver series at https://patchwork.ozlabs.org/cover/942297/ Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test
[PATCH net-next V2 0/8] Packed virtqueue support for vhost
2018 Jul 16
11
[PATCH net-next V2 0/8] Packed virtqueue support for vhost
Hi all: This series implements packed virtqueues. The code were tested with Tiwei's guest driver series at https://patchwork.ozlabs.org/cover/942297/ Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test
[PATCH net-next 0/8] Packed virtqueue for vhost
2018 Jul 03
12
[PATCH net-next 0/8] Packed virtqueue for vhost
Hi all: This series implements packed virtqueues. The code were tested with Tiwei's RFC V6 at https://lkml.org/lkml/2018/6/5/120. Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test virtio-net pmd as well when
[PATCH net-next 0/8] Packed virtqueue for vhost
2018 Jul 03
12
[PATCH net-next 0/8] Packed virtqueue for vhost
Hi all: This series implements packed virtqueues. The code were tested with Tiwei's RFC V6 at https://lkml.org/lkml/2018/6/5/120. Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test virtio-net pmd as well when