Displaying 20 results from an estimated 87 matches for "vhost_update_avail_event".
2011 Jun 21
1
[PATCH 1/2] vhost: init used ring after backend was set
This patch move the used ring initialization after backend was set. This make us
possible to disable the backend and tweak the used ring then restart. And it's
also useful for log setting as used ring have been checked then.
Signed-off-by: Jason Wang <jasowang at redhat.com>
---
drivers/vhost/net.c | 4 ++++
drivers/vhost/vhost.c | 11 +++--------
drivers/vhost/vhost.h | 1 +
2011 Jun 21
1
[PATCH 1/2] vhost: init used ring after backend was set
This patch move the used ring initialization after backend was set. This make us
possible to disable the backend and tweak the used ring then restart. And it's
also useful for log setting as used ring have been checked then.
Signed-off-by: Jason Wang <jasowang at redhat.com>
---
drivers/vhost/net.c | 4 ++++
drivers/vhost/vhost.c | 11 +++--------
drivers/vhost/vhost.h | 1 +
2014 Nov 24
2
[PATCH v3 26/41] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 24
2
[PATCH v3 26/41] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Dec 01
0
[PATCH v8 33/50] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,7 +1038,7 @@ static int vhos...
2014 Dec 01
0
[PATCH v8 33/50] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,7 +1038,7 @@ static int vhos...
2014 Nov 25
0
[PATCH v4 27/42] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 27
0
[PATCH v5 30/45] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 27
0
[PATCH v6 31/46] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 25
0
[PATCH v4 27/42] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 27
0
[PATCH v5 30/45] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 27
0
[PATCH v6 31/46] vhost: virtio 1.0 endian-ness support
...lt; 0)
+ if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
@@ -1038,6 +1038,7 @@ static int vhos...
2014 Nov 24
0
[PATCH v3 26/41] vhost: virtio 1.0 endian-ness support
...o_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
> return -EFAULT;
> if (unlikely(vq->log_used)) {
> /* Make sure the flag is seen before log. */
> @@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
>
> static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
> {
> - if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
> + if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
> return -EFAULT;
> if (unlikely(vq->log_used)) {
> void __user *used;
> @@...
2014 Nov 24
0
[PATCH v3 26/41] vhost: virtio 1.0 endian-ness support
...o_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)
> return -EFAULT;
> if (unlikely(vq->log_used)) {
> /* Make sure the flag is seen before log. */
> @@ -1019,7 +1019,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
>
> static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
> {
> - if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
> + if (__put_user(cpu_to_vhost16(vq, vq->avail_idx), vhost_avail_event(vq)))
> return -EFAULT;
> if (unlikely(vq->log_used)) {
> void __user *used;
> @@...
2011 Jul 19
0
[PATCH RFC] vhost: optimize interrupt enable/disable
...gt;used->flags) < 0)
+ if (__put_user(vq->used_flags, &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1016,7 +1016,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
--
1.7.5.53.gc233e
2011 Jul 19
0
[PATCH RFC] vhost: optimize interrupt enable/disable
...gt;used->flags) < 0)
+ if (__put_user(vq->used_flags, &vq->used->flags) < 0)
return -EFAULT;
if (unlikely(vq->log_used)) {
/* Make sure the flag is seen before log. */
@@ -1016,7 +1016,7 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
{
- if (put_user(vq->avail_idx, vhost_avail_event(vq)))
+ if (__put_user(vq->avail_idx, vhost_avail_event(vq)))
return -EFAULT;
if (unlikely(vq->log_used)) {
void __user *used;
--
1.7.5.53.gc233e
2014 Dec 01
0
[PATCH v8 32/50] vhost: switch to __get/__put_user exclusively
...lt;mst at redhat.com>
---
drivers/vhost/vhost.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c90f437..6a40837 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1038,6 +1038,7 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
int vhost_init_used(struct vhost_virtqueue *vq)
{
+ u16 last_used_idx;
int r;
if (!vq->private_data)
return 0;
@@ -1046,7 +1047,13 @@ int vhost_init_used(struct vhost_virtqueue *vq)
if (r)
return r;
vq->signalled_used_valid = fals...
2014 Dec 01
0
[PATCH v8 32/50] vhost: switch to __get/__put_user exclusively
...lt;mst at redhat.com>
---
drivers/vhost/vhost.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c90f437..6a40837 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1038,6 +1038,7 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
int vhost_init_used(struct vhost_virtqueue *vq)
{
+ u16 last_used_idx;
int r;
if (!vq->private_data)
return 0;
@@ -1046,7 +1047,13 @@ int vhost_init_used(struct vhost_virtqueue *vq)
if (r)
return r;
vq->signalled_used_valid = fals...
2015 Apr 21
2
[PATCH v4 7/8] vhost: feature to set the vring endianness
...case VHOST_SET_VRING_BIG_ENDIAN:
> + r = vhost_set_vring_big_endian(vq, argp);
> + break;
> + case VHOST_GET_VRING_BIG_ENDIAN:
> + r = vhost_get_vring_big_endian(vq, idx, argp);
> + break;
> default:
> r = -ENOIOCTLCMD;
> }
> @@ -1040,12 +1097,29 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
> return 0;
> }
>
> +#ifdef CONFIG_VHOST_SET_ENDIAN_LEGACY
> +static void vhost_init_is_le(struct vhost_virtqueue *vq)
> +{
> + vq->is_le = vhost_has_feature(vq, VIRTIO_F_VERSION_1) || !vq->user_be;
> +}
> +#else
>...
2018 Dec 12
2
[PATCH net V2 4/4] vhost: log dirty page correctly
...(used - (void __user *)vq->used),
> - sizeof vq->used->flags);
> + log_used(vq, (used - (void __user *)vq->used),
> + sizeof vq->used->flags);
> if (vq->log_ctx)
> eventfd_signal(vq->log_ctx, 1);
> }
> @@ -1789,9 +1844,8 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
> smp_wmb();
> /* Log avail event write */
> used = vhost_avail_event(vq);
> - log_write(vq->log_base, vq->log_addr +
> - (used - (void __user *)vq->used),
> - sizeof *vhost_avail_event(vq));
> + log_used(...