Displaying 20 results from an estimated 109 matches for "xdp_prog".
2023 Apr 03
1
[PATCH net-next 3/8] virtio_net: introduce virtnet_xdp_handler() to seprate the logic of run xdp
..._unused_buf(struct virtqueue *vq, void *buf);
> static void virtnet_sq_free_unused_buf(struct virtqueue *vq, void *buf);
>
> @@ -789,6 +798,59 @@ static int virtnet_xdp_xmit(struct net_device *dev,
> return ret;
> }
>
> +static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
> + struct net_device *dev,
> + unsigned int *xdp_xmit,
> + struct virtnet_rq_stats *stats)
> +{
> + struct xdp_frame *xdpf;
> + int err;
> + u32 act;...
2018 Sep 06
2
[PATCH net-next 06/11] tuntap: split out XDP logic
...et/tun.c
> +++ b/drivers/net/tun.c
> @@ -1635,6 +1635,44 @@ static bool tun_can_build_skb(struct tun_struct *tun, struct tun_file *tfile,
> return true;
> }
>
> +static u32 tun_do_xdp(struct tun_struct *tun,
> + struct tun_file *tfile,
> + struct bpf_prog *xdp_prog,
> + struct xdp_buff *xdp,
> + int *err)
> +{
> + u32 act = bpf_prog_run_xdp(xdp_prog, xdp);
> +
> + switch (act) {
> + case XDP_REDIRECT:
> + *err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
> + xdp_do_flush_map();
> + if (*err)
> + break;
>...
2018 Sep 06
2
[PATCH net-next 06/11] tuntap: split out XDP logic
...et/tun.c
> +++ b/drivers/net/tun.c
> @@ -1635,6 +1635,44 @@ static bool tun_can_build_skb(struct tun_struct *tun, struct tun_file *tfile,
> return true;
> }
>
> +static u32 tun_do_xdp(struct tun_struct *tun,
> + struct tun_file *tfile,
> + struct bpf_prog *xdp_prog,
> + struct xdp_buff *xdp,
> + int *err)
> +{
> + u32 act = bpf_prog_run_xdp(xdp_prog, xdp);
> +
> + switch (act) {
> + case XDP_REDIRECT:
> + *err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
> + xdp_do_flush_map();
> + if (*err)
> + break;
>...
2023 Apr 04
1
[PATCH net-next 3/8] virtio_net: introduce virtnet_xdp_handler() to seprate the logic of run xdp
...(struct virtqueue *vq, void *buf);
> > > >
> > > > @@ -789,6 +798,59 @@ static int virtnet_xdp_xmit(struct net_device *dev,
> > > > return ret;
> > > > }
> > > >
> > > > +static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
> > > > + struct net_device *dev,
> > > > + unsigned int *xdp_xmit,
> > > > + struct virtnet_rq_stats *stats)
> > > > +{
> > > >...
2023 Apr 04
1
[PATCH net-next 3/8] virtio_net: introduce virtnet_xdp_handler() to seprate the logic of run xdp
...uf);
> > > > >
> > > > > @@ -789,6 +798,59 @@ static int virtnet_xdp_xmit(struct net_device *dev,
> > > > > return ret;
> > > > > }
> > > > >
> > > > > +static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
> > > > > + struct net_device *dev,
> > > > > + unsigned int *xdp_xmit,
> > > > > + struct virtnet_rq_stats *stats)
> > > > > +{...
2023 Mar 28
8
[PATCH net-next 0/8] virtio_net: refactor xdp codes
Due to historical reasons, the implementation of XDP in virtio-net is relatively
chaotic. For example, the processing of XDP actions has two copies of similar
code. Such as page, xdp_page processing, etc.
The purpose of this patch set is to refactor these code. Reduce the difficulty
of subsequent maintenance. Subsequent developers will not introduce new bugs
because of some complex logical
2023 Apr 04
1
[PATCH net-next 3/8] virtio_net: introduce virtnet_xdp_handler() to seprate the logic of run xdp
...> > > @@ -789,6 +798,59 @@ static int virtnet_xdp_xmit(struct net_device *dev,
> > > > > > > return ret;
> > > > > > > }
> > > > > > >
> > > > > > > +static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
> > > > > > > + struct net_device *dev,
> > > > > > > + unsigned int *xdp_xmit,
> > > > > > > + struct virtnet_rq_stats *stats...
2023 Mar 22
9
[PATCH net-next 0/8] virtio_net: refactor xdp codes
Due to historical reasons, the implementation of XDP in virtio-net is relatively
chaotic. For example, the processing of XDP actions has two copies of similar
code. Such as page, xdp_page processing, etc.
The purpose of this patch set is to refactor these code. Reduce the difficulty
of subsequent maintenance. Subsequent developers will not introduce new bugs
because of some complex logical
2023 Mar 15
10
[RFC net-next 0/8] virtio_net: refactor xdp codes
Due to historical reasons, the implementation of XDP in virtio-net is relatively
chaotic. For example, the processing of XDP actions has two copies of similar
code. Such as page, xdp_page processing, etc.
The purpose of this patch set is to refactor these code. Reduce the difficulty
of subsequent maintenance. Subsequent developers will not introduce new bugs
because of some complex logical
2018 Sep 06
0
[PATCH net-next 06/11] tuntap: split out XDP logic
...cc6..21b125020b3b 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1635,6 +1635,44 @@ static bool tun_can_build_skb(struct tun_struct *tun, struct tun_file *tfile,
return true;
}
+static u32 tun_do_xdp(struct tun_struct *tun,
+ struct tun_file *tfile,
+ struct bpf_prog *xdp_prog,
+ struct xdp_buff *xdp,
+ int *err)
+{
+ u32 act = bpf_prog_run_xdp(xdp_prog, xdp);
+
+ switch (act) {
+ case XDP_REDIRECT:
+ *err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
+ xdp_do_flush_map();
+ if (*err)
+ break;
+ goto out;
+ case XDP_TX:
+ *err = tun_xdp_tx(tun->d...
2023 Mar 30
1
[PATCH net-next 7/8] virtio_net: introduce receive_mergeable_xdp()
..._prepare(struct virtnet_info *vi,
> return page_address(xdp_page) + VIRTIO_XDP_HEADROOM;
> }
>
> +static struct sk_buff *receive_mergeable_xdp(struct net_device *dev,
> + struct virtnet_info *vi,
> + struct receive_queue *rq,
> + struct bpf_prog *xdp_prog,
> + void *buf,
> + void *ctx,
> + unsigned int len,
> + unsigned int *xdp_xmit,
> + struct virtnet_rq_stats *stats)
> +{
> + struct virtio_net_hdr_mrg_rxbuf *hdr = buf;
> + int num_buf = virtio16_to_cpu(vi->vdev, hdr->num_b...
2018 Sep 07
0
[PATCH net-next 06/11] tuntap: split out XDP logic
.../tun.c
>> @@ -1635,6 +1635,44 @@ static bool tun_can_build_skb(struct tun_struct *tun, struct tun_file *tfile,
>> return true;
>> }
>>
>> +static u32 tun_do_xdp(struct tun_struct *tun,
>> + struct tun_file *tfile,
>> + struct bpf_prog *xdp_prog,
>> + struct xdp_buff *xdp,
>> + int *err)
>> +{
>> + u32 act = bpf_prog_run_xdp(xdp_prog, xdp);
>> +
>> + switch (act) {
>> + case XDP_REDIRECT:
>> + *err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
>> + xdp_do_flush_map();
&...
2023 Mar 28
1
[PATCH net-next 6/8] virtio_net: auto release xdp shinfo
...----------
1 file changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a3f2bcb3db27..136131a7868a 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -833,14 +833,14 @@ static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
stats->xdp_tx++;
xdpf = xdp_convert_buff_to_frame(xdp);
if (unlikely(!xdpf))
- return VIRTNET_XDP_RES_DROP;
+ goto drop;
err = virtnet_xdp_xmit(dev, 1, &xdpf, 0);
if (unlikely(!err)) {
xdp_return_frame_rx_napi(xdpf);
} else if (unlikely(err...
2023 Mar 22
1
[PATCH net-next 7/8] virtio_net: introduce receive_mergeable_xdp()
...16,63 @@ static void *mergeable_xdp_prepare(struct virtnet_info *vi,
return page_address(xdp_page) + VIRTIO_XDP_HEADROOM;
}
+static struct sk_buff *receive_mergeable_xdp(struct net_device *dev,
+ struct virtnet_info *vi,
+ struct receive_queue *rq,
+ struct bpf_prog *xdp_prog,
+ void *buf,
+ void *ctx,
+ unsigned int len,
+ unsigned int *xdp_xmit,
+ struct virtnet_rq_stats *stats)
+{
+ struct virtio_net_hdr_mrg_rxbuf *hdr = buf;
+ int num_buf = virtio16_to_cpu(vi->vdev, hdr->num_buffers);
+ struct page *page = virt_to_h...
2023 Apr 03
1
[PATCH net-next 6/8] virtio_net: auto release xdp shinfo
...7 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index a3f2bcb3db27..136131a7868a 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -833,14 +833,14 @@ static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
> stats->xdp_tx++;
> xdpf = xdp_convert_buff_to_frame(xdp);
> if (unlikely(!xdpf))
> - return VIRTNET_XDP_RES_DROP;
> + goto drop;
>
> err = virtnet_xdp_xmit(dev, 1, &xdpf, 0);
> if (unlikely(!err)) {
> xdp_ret...
2023 Mar 28
1
[PATCH net-next 4/8] virtio_net: separate the logic of freeing xdp shinfo
...age *xdp_page;
+ int i;
+
+ if (xdp_buff_has_frags(xdp)) {
+ shinfo = xdp_get_shared_info_from_buff(xdp);
+ for (i = 0; i < shinfo->nr_frags; i++) {
+ xdp_page = skb_frag_page(&shinfo->frags[i]);
+ put_page(xdp_page);
+ }
+ }
+}
+
static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp,
struct net_device *dev,
unsigned int *xdp_xmit,
@@ -1312,12 +1327,9 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
xdp_prog = rcu_dereference(rq->xdp_prog);
if (xdp_prog) {
unsigned int xdp_frags_truesz = 0;
- struct skb_s...
2018 Mar 01
0
[PATCH net-next 1/2] virtio-net: re enable XDP_REDIRECT for mergeable buffer
...0ba 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -537,6 +537,26 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
return NULL;
}
+static struct sk_buff *virtnet_skb_xdp(struct receive_queue *rq,
+ struct sk_buff *skb)
+{
+ struct bpf_prog *xdp_prog;
+ int ret;
+
+ rcu_read_lock();
+ xdp_prog = rcu_dereference(rq->xdp_prog);
+ if (xdp_prog) {
+ ret = do_xdp_generic(xdp_prog, skb);
+ if (ret != XDP_PASS) {
+ rcu_read_unlock();
+ return NULL;
+ }
+ }
+ rcu_read_unlock();
+
+ return skb;
+}
+
static struct sk_buff *receive_small(struct...
2018 Sep 06
22
[PATCH net-next 00/11] Vhost_net TX batching
Hi all:
This series tries to batch submitting packets to underlayer socket
through msg_control during sendmsg(). This is done by:
1) Doing userspace copy inside vhost_net
2) Build XDP buff
3) Batch at most 64 (VHOST_NET_BATCH) XDP buffs and submit them once
through msg_control during sendmsg().
4) Underlayer sockets can use XDP buffs directly when XDP is enalbed,
or build skb based on XDP
2018 Mar 01
7
[PATCH net-next 0/2] virtio-net: re enable XDP_REDIRECT for mergeable buffer
Hi:
This series tries to re-enable XDP_REDIRECT for mergeable buffer which
was removed since commit 7324f5399b06 ("virtio_net: disable
XDP_REDIRECT in receive_mergeable() case"). Main concerns are:
- not enough tailroom was reserved which breaks cpumap
- complex logic like EWMA and linearizing during XDP processing
Fix those by:
- reserve enough tailroom during refill
- disable EWMA
2018 Mar 01
7
[PATCH net-next 0/2] virtio-net: re enable XDP_REDIRECT for mergeable buffer
Hi:
This series tries to re-enable XDP_REDIRECT for mergeable buffer which
was removed since commit 7324f5399b06 ("virtio_net: disable
XDP_REDIRECT in receive_mergeable() case"). Main concerns are:
- not enough tailroom was reserved which breaks cpumap
- complex logic like EWMA and linearizing during XDP processing
Fix those by:
- reserve enough tailroom during refill
- disable EWMA