Displaying 20 results from an estimated 89 matches for "err_skb".
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curr_skb
2023 Mar 22
1
[PATCH net-next 7/8] virtio_net: introduce receive_mergeable_xdp()
..._hdr_mrg_rxbuf *hdr;
+ struct sk_buff *head_skb, *curr_skb;
+ struct bpf_prog *xdp_prog;
+ struct page *page;
+ int num_buf;
+ int offset;
head_skb = NULL;
stats->bytes += len - vi->hdr_len;
@@ -1348,51 +1403,24 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
goto err_skb;
}
- if (likely(!vi->xdp_enabled)) {
- xdp_prog = NULL;
- goto skip_xdp;
- }
-
- rcu_read_lock();
- xdp_prog = rcu_dereference(rq->xdp_prog);
- if (xdp_prog) {
- unsigned int xdp_frags_truesz = 0;
- struct xdp_buff xdp;
- void *data;
- u32 act;
-
- data = mergeable_xdp_prepare(vi,...
2013 Nov 27
4
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...= buf - page_address(page);
+ struct sk_buff *head_skb = page_to_skb(rq, page, offset, len,
+ MERGE_BUFFER_LEN);
struct sk_buff *curr_skb = head_skb;
- char *buf;
- struct page *page;
- int num_buf, len, offset;
- num_buf = hdr->mhdr.num_buffers;
+ if (unlikely(!curr_skb))
+ goto err_skb;
+
while (--num_buf) {
- int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+ int num_skb_frags;
+
buf = virtqueue_get_buf(rq->vq, &len);
if (unlikely(!buf)) {
- pr_debug("%s: rx error: %d buffers missing\n",
- head_skb->dev->name, hdr->mhdr.num_buffers...
2013 Nov 27
4
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...= buf - page_address(page);
+ struct sk_buff *head_skb = page_to_skb(rq, page, offset, len,
+ MERGE_BUFFER_LEN);
struct sk_buff *curr_skb = head_skb;
- char *buf;
- struct page *page;
- int num_buf, len, offset;
- num_buf = hdr->mhdr.num_buffers;
+ if (unlikely(!curr_skb))
+ goto err_skb;
+
while (--num_buf) {
- int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+ int num_skb_frags;
+
buf = virtqueue_get_buf(rq->vq, &len);
if (unlikely(!buf)) {
- pr_debug("%s: rx error: %d buffers missing\n",
- head_skb->dev->name, hdr->mhdr.num_buffers...
2017 Jul 18
1
[PATCH net-next 2/5] virtio-net: pack headroom into ctx for mergeable buffer
...> (unsigned long)ctx)) {
> + truesize = mergeable_ctx_to_truesize(ctx);
> + if (unlikely(len > truesize)) {
> pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
> dev->name, len, (unsigned long)ctx);
> dev->stats.rx_length_errors++;
> goto err_skb;
> }
> - truesize = (unsigned long)ctx;
> +
> head_skb = page_to_skb(vi, rq, page, offset, len, truesize);
> curr_skb = head_skb;
>
> @@ -665,13 +683,14 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
> }
>
> page = virt_to_head_page...
2017 Jul 18
1
[PATCH net-next 2/5] virtio-net: pack headroom into ctx for mergeable buffer
...> (unsigned long)ctx)) {
> + truesize = mergeable_ctx_to_truesize(ctx);
> + if (unlikely(len > truesize)) {
> pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
> dev->name, len, (unsigned long)ctx);
> dev->stats.rx_length_errors++;
> goto err_skb;
> }
> - truesize = (unsigned long)ctx;
> +
> head_skb = page_to_skb(vi, rq, page, offset, len, truesize);
> curr_skb = head_skb;
>
> @@ -665,13 +683,14 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
> }
>
> page = virt_to_head_page...
2013 Nov 28
4
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
...= buf - page_address(page);
+ struct sk_buff *head_skb = page_to_skb(rq, page, offset, len,
+ MERGE_BUFFER_LEN);
struct sk_buff *curr_skb = head_skb;
- char *buf;
- struct page *page;
- int num_buf, len, offset;
- num_buf = hdr->mhdr.num_buffers;
+ if (unlikely(!curr_skb))
+ goto err_skb;
+
while (--num_buf) {
- int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+ int num_skb_frags;
+
buf = virtqueue_get_buf(rq->vq, &len);
if (unlikely(!buf)) {
- pr_debug("%s: rx error: %d buffers missing\n",
- head_skb->dev->name, hdr->mhdr.num_buffers...
2013 Nov 28
4
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
...= buf - page_address(page);
+ struct sk_buff *head_skb = page_to_skb(rq, page, offset, len,
+ MERGE_BUFFER_LEN);
struct sk_buff *curr_skb = head_skb;
- char *buf;
- struct page *page;
- int num_buf, len, offset;
- num_buf = hdr->mhdr.num_buffers;
+ if (unlikely(!curr_skb))
+ goto err_skb;
+
while (--num_buf) {
- int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+ int num_skb_frags;
+
buf = virtqueue_get_buf(rq->vq, &len);
if (unlikely(!buf)) {
- pr_debug("%s: rx error: %d buffers missing\n",
- head_skb->dev->name, hdr->mhdr.num_buffers...
2013 Dec 26
1
[PATCH stable v2 1/3] virtio_net: fix error handling for mergeable buffers
...struct skb_vnet_hdr *hdr = skb_vnet_hdr(skb);
- struct page *page;
- int num_buf, i, len;
+ struct skb_vnet_hdr *hdr = page_address(buf);
+ int num_buf = hdr->mhdr.num_buffers;
+ struct page *page = buf;
+ struct sk_buff *skb = page_to_skb(rq, page, len);
+ int i;
+
+ if (unlikely(!skb))
+ goto err_skb;
- num_buf = hdr->mhdr.num_buffers;
while (--num_buf) {
i = skb_shinfo(skb)->nr_frags;
if (i >= MAX_SKB_FRAGS) {
pr_debug("%s: packet too long\n", skb->dev->name);
skb->dev->stats.rx_length_errors++;
- return -EINVAL;
+ return NULL;
}
page...
2013 Dec 26
1
[PATCH stable v2 1/3] virtio_net: fix error handling for mergeable buffers
...struct skb_vnet_hdr *hdr = skb_vnet_hdr(skb);
- struct page *page;
- int num_buf, i, len;
+ struct skb_vnet_hdr *hdr = page_address(buf);
+ int num_buf = hdr->mhdr.num_buffers;
+ struct page *page = buf;
+ struct sk_buff *skb = page_to_skb(rq, page, len);
+ int i;
+
+ if (unlikely(!skb))
+ goto err_skb;
- num_buf = hdr->mhdr.num_buffers;
while (--num_buf) {
i = skb_shinfo(skb)->nr_frags;
if (i >= MAX_SKB_FRAGS) {
pr_debug("%s: packet too long\n", skb->dev->name);
skb->dev->stats.rx_length_errors++;
- return -EINVAL;
+ return NULL;
}
page...
2013 Nov 20
2
[PATCH RFC] virtio_net: fix error handling for mergeable buffers
...struct sk_buff *curr_skb = head_skb;
> - char *buf;
> - struct page *page;
> - int num_buf, len, offset;
>
> - num_buf = hdr->mhdr.num_buffers;
> - while (--num_buf) {
> - int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
> + if (unlikely(!curr_skb))
> + goto err_skb;
> +
> + while (--num_buf) {
> + int num_skb_frags;
> +
> buf = virtqueue_get_buf(rq->vq, &len);
> if (unlikely(!buf)) {
> - pr_debug("%s: rx error: %d buffers missing\n",
> - head_skb->dev->name, hdr->mhdr.num_buffers);
> - head_s...
2013 Nov 20
2
[PATCH RFC] virtio_net: fix error handling for mergeable buffers
...struct sk_buff *curr_skb = head_skb;
> - char *buf;
> - struct page *page;
> - int num_buf, len, offset;
>
> - num_buf = hdr->mhdr.num_buffers;
> - while (--num_buf) {
> - int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
> + if (unlikely(!curr_skb))
> + goto err_skb;
> +
> + while (--num_buf) {
> + int num_skb_frags;
> +
> buf = virtqueue_get_buf(rq->vq, &len);
> if (unlikely(!buf)) {
> - pr_debug("%s: rx error: %d buffers missing\n",
> - head_skb->dev->name, hdr->mhdr.num_buffers);
> - head_s...
2013 Dec 25
3
[PATCH stable 1/2] virtio_net: fix error handling for mergeable buffers
...struct skb_vnet_hdr *hdr = skb_vnet_hdr(skb);
- struct page *page;
- int num_buf, i, len;
+ struct skb_vnet_hdr *hdr = page_address(buf);
+ int num_buf = hdr->mhdr.num_buffers;
+ struct page *page = buf;
+ struct sk_buff *skb = page_to_skb(rq, page, len);
+ int i;
+
+ if (unlikely(!skb))
+ goto err_skb;
- num_buf = hdr->mhdr.num_buffers;
while (--num_buf) {
i = skb_shinfo(skb)->nr_frags;
if (i >= MAX_SKB_FRAGS) {
pr_debug("%s: packet too long\n", skb->dev->name);
skb->dev->stats.rx_length_errors++;
- return -EINVAL;
+ return NULL;
}
page...
2013 Dec 25
3
[PATCH stable 1/2] virtio_net: fix error handling for mergeable buffers
...struct skb_vnet_hdr *hdr = skb_vnet_hdr(skb);
- struct page *page;
- int num_buf, i, len;
+ struct skb_vnet_hdr *hdr = page_address(buf);
+ int num_buf = hdr->mhdr.num_buffers;
+ struct page *page = buf;
+ struct sk_buff *skb = page_to_skb(rq, page, len);
+ int i;
+
+ if (unlikely(!skb))
+ goto err_skb;
- num_buf = hdr->mhdr.num_buffers;
while (--num_buf) {
i = skb_shinfo(skb)->nr_frags;
if (i >= MAX_SKB_FRAGS) {
pr_debug("%s: packet too long\n", skb->dev->name);
skb->dev->stats.rx_length_errors++;
- return -EINVAL;
+ return NULL;
}
page...
2013 Nov 28
0
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...*head_skb = page_to_skb(rq, page, offset, len,
> + MERGE_BUFFER_LEN);
> struct sk_buff *curr_skb = head_skb;
> - char *buf;
> - struct page *page;
> - int num_buf, len, offset;
>
> - num_buf = hdr->mhdr.num_buffers;
> + if (unlikely(!curr_skb))
> + goto err_skb;
> +
> while (--num_buf) {
> - int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
> + int num_skb_frags;
> +
> buf = virtqueue_get_buf(rq->vq, &len);
> if (unlikely(!buf)) {
> - pr_debug("%s: rx error: %d buffers missing\n",
> - head_s...
2013 Nov 20
0
[PATCH RFC] virtio_net: fix error handling for mergeable buffers
...offset, len,
+ MAX_PACKET_LEN);
struct sk_buff *curr_skb = head_skb;
- char *buf;
- struct page *page;
- int num_buf, len, offset;
- num_buf = hdr->mhdr.num_buffers;
- while (--num_buf) {
- int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+ if (unlikely(!curr_skb))
+ goto err_skb;
+
+ while (--num_buf) {
+ int num_skb_frags;
+
buf = virtqueue_get_buf(rq->vq, &len);
if (unlikely(!buf)) {
- pr_debug("%s: rx error: %d buffers missing\n",
- head_skb->dev->name, hdr->mhdr.num_buffers);
- head_skb->dev->stats.rx_length_errors++;
-...
2017 Mar 29
0
[PATCH 5/6] virtio_net: rework mergeable buffer handling
...*dev,
}
rcu_read_unlock();
- truesize = max(len, mergeable_ctx_to_buf_truesize(ctx));
+ if (unlikely(len > (unsigned long)ctx)) {
+ pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ dev->name, len, (unsigned long)ctx);
+ dev->stats.rx_length_errors++;
+ goto err_skb;
+ }
+ truesize = (unsigned long)ctx;
head_skb = page_to_skb(vi, rq, page, offset, len, truesize);
curr_skb = head_skb;
@@ -648,7 +634,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
while (--num_buf) {
int num_skb_frags;
- ctx = (unsigned long)virtqueue_get_buf(...
2017 Mar 29
0
[PATCH 5/6] virtio_net: rework mergeable buffer handling
...*dev,
}
rcu_read_unlock();
- truesize = max(len, mergeable_ctx_to_buf_truesize(ctx));
+ if (unlikely(len > (unsigned long)ctx)) {
+ pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ dev->name, len, (unsigned long)ctx);
+ dev->stats.rx_length_errors++;
+ goto err_skb;
+ }
+ truesize = (unsigned long)ctx;
head_skb = page_to_skb(vi, rq, page, offset, len, truesize);
curr_skb = head_skb;
@@ -648,7 +634,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
while (--num_buf) {
int num_skb_frags;
- ctx = (unsigned long)virtqueue_get_buf(...
2017 Apr 06
0
[PATCH] virtio_net: tidy a couple debug statements
...rcu_read_unlock();
if (unlikely(len > (unsigned long)ctx)) {
- pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
dev->name, len, (unsigned long)ctx);
dev->stats.rx_length_errors++;
goto err_skb;
@@ -694,7 +694,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
page = virt_to_head_page(buf);
if (unlikely(len > (unsigned long)ctx)) {
- pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ pr_debug("%s: rx error: len %u exceeds truesize...
2017 Jul 17
0
[PATCH net-next 2/5] virtio-net: pack headroom into ctx for mergeable buffer
...unlock();
- if (unlikely(len > (unsigned long)ctx)) {
+ truesize = mergeable_ctx_to_truesize(ctx);
+ if (unlikely(len > truesize)) {
pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
dev->name, len, (unsigned long)ctx);
dev->stats.rx_length_errors++;
goto err_skb;
}
- truesize = (unsigned long)ctx;
+
head_skb = page_to_skb(vi, rq, page, offset, len, truesize);
curr_skb = head_skb;
@@ -665,13 +683,14 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
}
page = virt_to_head_page(buf);
- if (unlikely(len > (unsigned long)ctx...
2017 Apr 06
0
[PATCH] virtio_net: tidy a couple debug statements
...rcu_read_unlock();
if (unlikely(len > (unsigned long)ctx)) {
- pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
dev->name, len, (unsigned long)ctx);
dev->stats.rx_length_errors++;
goto err_skb;
@@ -694,7 +694,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
page = virt_to_head_page(buf);
if (unlikely(len > (unsigned long)ctx)) {
- pr_debug("%s: rx error: len %u exceeds truesize 0x%lu\n",
+ pr_debug("%s: rx error: len %u exceeds truesize...