Displaying 5 results from an estimated 5 matches for "err_avail".
2018 Dec 13
0
[PATCH net-next 3/3] vhost: access vq metadata through kernel virtual address
...int ret;
+
+ vhost_clean_vmaps(vq);
+
+ avail_size = sizeof(*vq->avail) +
+ sizeof(*vq->avail->ring) * vq->num + event;
+ ret = vhost_init_vmap(&vq->avail_ring, avail, avail_size, false);
+ if (ret) {
+ vq_err(vq, "Fail to setup vmap for avail ring!\n");
+ goto err_avail;
+ }
+
+ desc_size = sizeof(*vq->desc) * vq->num;
+ ret = vhost_init_vmap(&vq->desc_ring, desc, desc_size, false);
+ if (ret) {
+ vq_err(vq, "Fail to setup vmap for desc ring!\n");
+ goto err_desc;
+ }
+
+ used_size = sizeof(*vq->used) +
+ sizeof(*vq->used->ri...
2018 Dec 13
11
[PATCH net-next 0/3] vhost: accelerate metadata access through vmap()
Hi:
This series tries to access virtqueue metadata through kernel virtual
address instead of copy_user() friends since they had too much
overheads like checks, spec barriers or even hardware feature
toggling.
Test shows about 24% improvement on TX PPS. It should benefit other
cases as well.
Please review
Jason Wang (3):
vhost: generalize adding used elem
vhost: fine grain userspace memory
2018 Dec 13
11
[PATCH net-next 0/3] vhost: accelerate metadata access through vmap()
Hi:
This series tries to access virtqueue metadata through kernel virtual
address instead of copy_user() friends since they had too much
overheads like checks, spec barriers or even hardware feature
toggling.
Test shows about 24% improvement on TX PPS. It should benefit other
cases as well.
Please review
Jason Wang (3):
vhost: generalize adding used elem
vhost: fine grain userspace memory
2018 Dec 13
5
[PATCH net-next 3/3] vhost: access vq metadata through kernel virtual address
...;
> +
> + avail_size = sizeof(*vq->avail) +
> + sizeof(*vq->avail->ring) * vq->num + event;
> + ret = vhost_init_vmap(&vq->avail_ring, avail, avail_size, false);
> + if (ret) {
> + vq_err(vq, "Fail to setup vmap for avail ring!\n");
> + goto err_avail;
> + }
> +
> + desc_size = sizeof(*vq->desc) * vq->num;
> + ret = vhost_init_vmap(&vq->desc_ring, desc, desc_size, false);
> + if (ret) {
> + vq_err(vq, "Fail to setup vmap for desc ring!\n");
> + goto err_desc;
> + }
> +
> + used_size = sizeof...
2018 Dec 13
5
[PATCH net-next 3/3] vhost: access vq metadata through kernel virtual address
...;
> +
> + avail_size = sizeof(*vq->avail) +
> + sizeof(*vq->avail->ring) * vq->num + event;
> + ret = vhost_init_vmap(&vq->avail_ring, avail, avail_size, false);
> + if (ret) {
> + vq_err(vq, "Fail to setup vmap for avail ring!\n");
> + goto err_avail;
> + }
> +
> + desc_size = sizeof(*vq->desc) * vq->num;
> + ret = vhost_init_vmap(&vq->desc_ring, desc, desc_size, false);
> + if (ret) {
> + vq_err(vq, "Fail to setup vmap for desc ring!\n");
> + goto err_desc;
> + }
> +
> + used_size = sizeof...