Displaying 5 results from an estimated 5 matches for "36ccf7c".
2019 Mar 06
0
[RFC PATCH V2 5/5] vhost: access vq metadata through kernel virtual address
...mp;vq->mutex);
}
@@ -1250,6 +1251,7 @@ static void handle_rx(struct vhost_net *net)
vhost_net_enable_vq(net, vq);
out:
vhost_net_signal_used(nvq);
+ vq_meta_prefetch_done(vq);
mutex_unlock(&vq->mutex);
}
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 1015464..36ccf7c 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -434,6 +434,74 @@ static size_t vhost_get_desc_size(struct vhost_virtqueue *vq, int num)
return sizeof(*vq->desc) * num;
}
+static void vhost_uninit_vmap(struct vhost_vmap *map)
+{
+ if (map->addr) {
+ vunmap(map->unma...
2019 Mar 06
2
[RFC PATCH V2 5/5] vhost: access vq metadata through kernel virtual address
...atic void handle_rx(struct vhost_net *net)
> vhost_net_enable_vq(net, vq);
> out:
> vhost_net_signal_used(nvq);
> + vq_meta_prefetch_done(vq);
> mutex_unlock(&vq->mutex);
> }
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 1015464..36ccf7c 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -434,6 +434,74 @@ static size_t vhost_get_desc_size(struct vhost_virtqueue *vq, int num)
> return sizeof(*vq->desc) * num;
> }
>
> +static void vhost_uninit_vmap(struct vhost_vmap *map)
> +{
>...
2019 Mar 06
2
[RFC PATCH V2 5/5] vhost: access vq metadata through kernel virtual address
...atic void handle_rx(struct vhost_net *net)
> vhost_net_enable_vq(net, vq);
> out:
> vhost_net_signal_used(nvq);
> + vq_meta_prefetch_done(vq);
> mutex_unlock(&vq->mutex);
> }
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 1015464..36ccf7c 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -434,6 +434,74 @@ static size_t vhost_get_desc_size(struct vhost_virtqueue *vq, int num)
> return sizeof(*vq->desc) * num;
> }
>
> +static void vhost_uninit_vmap(struct vhost_vmap *map)
> +{
>...
2019 Mar 06
12
[RFC PATCH V2 0/5] vhost: accelerate metadata access through vmap()
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. This is done through setup kernel address through vmap() and
resigter MMU notifier for invalidation.
Test shows about 24% improvement on TX PPS. TCP_STREAM doesn't see
obvious improvement.
2019 Mar 06
12
[RFC PATCH V2 0/5] vhost: accelerate metadata access through vmap()
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. This is done through setup kernel address through vmap() and
resigter MMU notifier for invalidation.
Test shows about 24% improvement on TX PPS. TCP_STREAM doesn't see
obvious improvement.