Displaying 20 results from an estimated 81 matches for "free_receive_page_frags".
2020 Jun 05
2
[PATCH] virtio_net: Unregister and re-register xdp_rxq across freeze/restore
...napi_disable(&vi->rq[i].napi);
virtnet_napi_tx_disable(&vi->sq[i].napi);
}
@@ -2313,6 +2322,8 @@ static void virtnet_freeze_down(struct virtio_device *vdev)
}
static int init_vqs(struct virtnet_info *vi);
+static void virtnet_del_vqs(struct virtnet_info *vi);
+static void free_receive_page_frags(struct virtnet_info *vi);
static int virtnet_restore_up(struct virtio_device *vdev)
{
@@ -2331,6 +2342,10 @@ static int virtnet_restore_up(struct virtio_device *vdev)
schedule_delayed_work(&vi->refill, 0);
for (i = 0; i < vi->max_queue_pairs; i++) {
+ err = virtnet_reg_...
2020 Jun 05
2
[PATCH] virtio_net: Unregister and re-register xdp_rxq across freeze/restore
...napi_disable(&vi->rq[i].napi);
virtnet_napi_tx_disable(&vi->sq[i].napi);
}
@@ -2313,6 +2322,8 @@ static void virtnet_freeze_down(struct virtio_device *vdev)
}
static int init_vqs(struct virtnet_info *vi);
+static void virtnet_del_vqs(struct virtnet_info *vi);
+static void free_receive_page_frags(struct virtnet_info *vi);
static int virtnet_restore_up(struct virtio_device *vdev)
{
@@ -2331,6 +2342,10 @@ static int virtnet_restore_up(struct virtio_device *vdev)
schedule_delayed_work(&vi->refill, 0);
for (i = 0; i < vi->max_queue_pairs; i++) {
+ err = virtnet_reg_...
2013 Dec 17
0
[PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs
..._init_one(rq->sg, buf, MERGE_BUFFER_LEN);
+ sg_init_one(rq->sg, buf, len);
err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
if (err < 0)
put_page(virt_to_head_page(buf));
@@ -1377,6 +1376,16 @@ static void free_receive_bufs(struct virtnet_info *vi)
}
}
+static void free_receive_page_frags(struct virtnet_info *vi)
+{
+ int i;
+ for (i = 0; i < vi->max_queue_pairs; i++)
+ if (vi->rq[i].atomic_frag.page)
+ put_page(vi->rq[i].atomic_frag.page);
+ if (vi->sleep_frag.page)
+ put_page(vi->sleep_frag.page);
+}
+
static void free_unused_bufs(struct virtnet_info *vi)
{...
2017 Jan 02
2
[PATCH net 9/9] virtio-net: XDP support for small buffers
...the buffer free with dev_kfree_skb()
instead of put_page in small receive mode. Seems more correct to me.
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 783e842..27ff76c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1898,6 +1898,10 @@ static void free_receive_page_frags(struct virtnet_info *vi)
static bool is_xdp_queue(struct virtnet_info *vi, int q)
{
+ /* For small receive mode always use kfree_skb variants */
+ if (!vi->mergeable_rx_bufs)
+ return false;
+
if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs))...
2017 Jan 02
2
[PATCH net 9/9] virtio-net: XDP support for small buffers
...the buffer free with dev_kfree_skb()
instead of put_page in small receive mode. Seems more correct to me.
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 783e842..27ff76c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1898,6 +1898,10 @@ static void free_receive_page_frags(struct virtnet_info *vi)
static bool is_xdp_queue(struct virtnet_info *vi, int q)
{
+ /* For small receive mode always use kfree_skb variants */
+ if (!vi->mergeable_rx_bufs)
+ return false;
+
if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs))...
2014 Jan 16
0
[PATCH net-next v4 2/6] virtio-net: use per-receive queue page frag alloc for mergeable bufs
...610,7 @@ static bool try_fill_recv(struct receive_queue *rq, gfp_t gfp)
int err;
bool oom;
+ gfp |= __GFP_COLD;
do {
if (vi->mergeable_rx_bufs)
err = add_recvbuf_mergeable(rq, gfp);
@@ -1377,6 +1371,14 @@ static void free_receive_bufs(struct virtnet_info *vi)
}
}
+static void free_receive_page_frags(struct virtnet_info *vi)
+{
+ int i;
+ for (i = 0; i < vi->max_queue_pairs; i++)
+ if (vi->rq[i].alloc_frag.page)
+ put_page(vi->rq[i].alloc_frag.page);
+}
+
static void free_unused_bufs(struct virtnet_info *vi)
{
void *buf;
@@ -1705,9 +1707,8 @@ free_recv_bufs:
unregister_netd...
2013 Nov 12
0
[PATCH net-next 3/4] virtio-net: use per-receive queue page frag alloc for mergeable bufs
..._init_one(rq->sg, buf, MERGE_BUFFER_LEN);
+ sg_init_one(rq->sg, buf, len);
err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
if (err < 0)
put_page(virt_to_head_page(buf));
@@ -1335,6 +1335,16 @@ static void free_receive_bufs(struct virtnet_info *vi)
}
}
+static void free_receive_page_frags(struct virtnet_info *vi)
+{
+ int i;
+ for (i = 0; i < vi->max_queue_pairs; i++)
+ if (vi->rq[i].atomic_frag.page)
+ put_page(vi->rq[i].atomic_frag.page);
+ if (vi->sleep_frag.page)
+ put_page(vi->sleep_frag.page);
+}
+
static void free_unused_bufs(struct virtnet_info *vi)
{...
2016 Jun 02
1
[PATCH -next 2/2] virtio_net: Read the advised MTU
...and TX vq's\n",
1952 dev->name, max_queue_pairs);
1953
1954 return 0;
1955
1956 free_unregister_netdev:
1957 vi->vdev->config->reset(vdev);
1958
1959 unregister_netdev(dev);
1960 free_vqs:
1961 cancel_delayed_work_sync(&vi->refill);
1962 free_receive_page_frags(vi);
1963 virtnet_del_vqs(vi);
1964 free_stats:
1965 free_percpu(vi->stats);
1966 free:
1967 free_netdev(dev);
1968 return err;
1969 }
1970
1971 static void remove_vq_common(struct virtnet_info *vi)
1972 {
1973 vi->vdev->config->reset(vi->vdev);
1974...
2016 Jun 02
1
[PATCH -next 2/2] virtio_net: Read the advised MTU
...and TX vq's\n",
1952 dev->name, max_queue_pairs);
1953
1954 return 0;
1955
1956 free_unregister_netdev:
1957 vi->vdev->config->reset(vdev);
1958
1959 unregister_netdev(dev);
1960 free_vqs:
1961 cancel_delayed_work_sync(&vi->refill);
1962 free_receive_page_frags(vi);
1963 virtnet_del_vqs(vi);
1964 free_stats:
1965 free_percpu(vi->stats);
1966 free:
1967 free_netdev(dev);
1968 return err;
1969 }
1970
1971 static void remove_vq_common(struct virtnet_info *vi)
1972 {
1973 vi->vdev->config->reset(vi->vdev);
1974...
2017 Jan 03
1
[PATCH net 9/9] virtio-net: XDP support for small buffers
...mall receive mode. Seems more correct to me.
>>
>>
>> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
>> index 783e842..27ff76c 100644
>> --- a/drivers/net/virtio_net.c
>> +++ b/drivers/net/virtio_net.c
>> @@ -1898,6 +1898,10 @@ static void free_receive_page_frags(struct virtnet_info
>> *vi)
>>
>> static bool is_xdp_queue(struct virtnet_info *vi, int q)
>> {
>> + /* For small receive mode always use kfree_skb variants */
>> + if (!vi->mergeable_rx_bufs)
>> + return false;
>> +
&...
2017 Jan 03
1
[PATCH net 9/9] virtio-net: XDP support for small buffers
...mall receive mode. Seems more correct to me.
>>
>>
>> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
>> index 783e842..27ff76c 100644
>> --- a/drivers/net/virtio_net.c
>> +++ b/drivers/net/virtio_net.c
>> @@ -1898,6 +1898,10 @@ static void free_receive_page_frags(struct virtnet_info
>> *vi)
>>
>> static bool is_xdp_queue(struct virtnet_info *vi, int q)
>> {
>> + /* For small receive mode always use kfree_skb variants */
>> + if (!vi->mergeable_rx_bufs)
>> + return false;
>> +
&...
2013 Dec 23
2
[PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs
...do some
optimizations for this in vhost.
> err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
> if (err < 0)
> put_page(virt_to_head_page(buf));
> @@ -1377,6 +1376,16 @@ static void free_receive_bufs(struct virtnet_info *vi)
> }
> }
>
> +static void free_receive_page_frags(struct virtnet_info *vi)
> +{
> + int i;
> + for (i = 0; i < vi->max_queue_pairs; i++)
> + if (vi->rq[i].atomic_frag.page)
> + put_page(vi->rq[i].atomic_frag.page);
> + if (vi->sleep_frag.page)
> + put_page(vi->sleep_frag.page);
> +}
> +
> static...
2013 Dec 23
2
[PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs
...do some
optimizations for this in vhost.
> err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
> if (err < 0)
> put_page(virt_to_head_page(buf));
> @@ -1377,6 +1376,16 @@ static void free_receive_bufs(struct virtnet_info *vi)
> }
> }
>
> +static void free_receive_page_frags(struct virtnet_info *vi)
> +{
> + int i;
> + for (i = 0; i < vi->max_queue_pairs; i++)
> + if (vi->rq[i].atomic_frag.page)
> + put_page(vi->rq[i].atomic_frag.page);
> + if (vi->sleep_frag.page)
> + put_page(vi->sleep_frag.page);
> +}
> +
> static...
2020 Jun 07
0
[PATCH] virtio_net: Unregister and re-register xdp_rxq across freeze/restore
...ly cleanup in the reverse order
of init is a good idea.
> }
> @@ -2313,6 +2322,8 @@ static void virtnet_freeze_down(struct virtio_device *vdev)
> }
>
> static int init_vqs(struct virtnet_info *vi);
> +static void virtnet_del_vqs(struct virtnet_info *vi);
> +static void free_receive_page_frags(struct virtnet_info *vi);
I'd really rather we reordered code so forward decls are not necessary.
> static int virtnet_restore_up(struct virtio_device *vdev)
> {
> @@ -2331,6 +2342,10 @@ static int virtnet_restore_up(struct virtio_device *vdev)
> schedule_delayed_work(&...
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the existing
page allocation
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the existing
page allocation
2019 Nov 22
2
[PATCH net-next v2] drivers: net: virtio_net: Implement a dev_watchdog handler
...@ static int virtnet_validate(struct virtio_device *vdev)
return 0;
}
+static void _remove_vq_common(struct virtnet_info *vi)
+{
+ vi->vdev->config->reset(vi->vdev);
+
+ /* Free unused buffers in both send and recv, if any. */
+ free_unused_bufs(vi);
+
+ _free_receive_bufs(vi);
+
+ free_receive_page_frags(vi);
+
+ virtnet_del_vqs(vi);
+}
+
+static int _virtnet_reset(struct virtnet_info *vi)
+{
+ struct virtio_device *vdev = vi->vdev;
+ int ret;
+
+ virtio_config_disable(vdev);
+ vdev->failed = vdev->config->get_status(vdev) & VIRTIO_CONFIG_S_FAILED;
+
+ virtnet_freeze_down(vdev);
+ _...
2019 Nov 22
2
[PATCH net-next v2] drivers: net: virtio_net: Implement a dev_watchdog handler
...@ static int virtnet_validate(struct virtio_device *vdev)
return 0;
}
+static void _remove_vq_common(struct virtnet_info *vi)
+{
+ vi->vdev->config->reset(vi->vdev);
+
+ /* Free unused buffers in both send and recv, if any. */
+ free_unused_bufs(vi);
+
+ _free_receive_bufs(vi);
+
+ free_receive_page_frags(vi);
+
+ virtnet_del_vqs(vi);
+}
+
+static int _virtnet_reset(struct virtnet_info *vi)
+{
+ struct virtio_device *vdev = vi->vdev;
+ int ret;
+
+ virtio_config_disable(vdev);
+ vdev->failed = vdev->config->get_status(vdev) & VIRTIO_CONFIG_S_FAILED;
+
+ virtnet_freeze_down(vdev);
+ _...
2017 Jan 03
0
[PATCH net 9/9] virtio-net: XDP support for small buffers
...gt; instead of put_page in small receive mode. Seems more correct to me.
>
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index 783e842..27ff76c 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -1898,6 +1898,10 @@ static void free_receive_page_frags(struct virtnet_info *vi)
>
> static bool is_xdp_queue(struct virtnet_info *vi, int q)
> {
> + /* For small receive mode always use kfree_skb variants */
> + if (!vi->mergeable_rx_bufs)
> + return false;
> +
> if (q < (vi->curr_...
2016 Jun 02
7
[PATCH -next 0/2] virtio-net: Advised MTU feature
The following series adds the ability for a hypervisor to set an MTU on the
guest during feature negotiation phase. This is useful for VM orchestration
when, for instance, tunneling is involved and the MTU of the various systems
should be homogenous.
The first patch adds the feature bit as described in the proposed VFIO spec
addition found at