Displaying 20 results from an estimated 250 matches for "eth_hlen".
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eth_alen
2016 Oct 20
4
[PATCH net-next v2 6/9] net: use core MTU range checking in virt drivers
...hdev = ndevctx->device_ctx;
struct netvsc_device_info device_info;
- int limit = ETH_DATA_LEN;
u32 num_chn;
int ret = 0;
if (ndevctx->start_remove || !nvdev || nvdev->destroy)
return -ENODEV;
- if (nvdev->nvsp_version >= NVSP_PROTOCOL_VERSION_2)
- limit = NETVSC_MTU - ETH_HLEN;
-
- if (mtu < NETVSC_MTU_MIN || mtu > limit)
- return -EINVAL;
-
ret = netvsc_close(ndev);
if (ret)
goto out;
@@ -1402,6 +1395,13 @@ static int netvsc_probe(struct hv_device *dev,
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->nu...
2016 Oct 20
4
[PATCH net-next v2 6/9] net: use core MTU range checking in virt drivers
...hdev = ndevctx->device_ctx;
struct netvsc_device_info device_info;
- int limit = ETH_DATA_LEN;
u32 num_chn;
int ret = 0;
if (ndevctx->start_remove || !nvdev || nvdev->destroy)
return -ENODEV;
- if (nvdev->nvsp_version >= NVSP_PROTOCOL_VERSION_2)
- limit = NETVSC_MTU - ETH_HLEN;
-
- if (mtu < NETVSC_MTU_MIN || mtu > limit)
- return -EINVAL;
-
ret = netvsc_close(ndev);
if (ret)
goto out;
@@ -1402,6 +1395,13 @@ static int netvsc_probe(struct hv_device *dev,
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->nu...
2013 Dec 05
6
[PATCH v2] virtio-net: free bufs correctly on invalid packet length
...rivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 916241d..6a4665c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -426,10 +426,10 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
pr_debug("%s: short packet %i\n", dev->name, len);
dev->stats.rx_length_errors++;
- if (vi->big_packets)
- give_pages(rq, buf);
- else if (vi->mergeable_rx_bufs)
+ if (vi->mergeable_rx_bufs)
put_page(virt_to_head_page(buf));
+ else if (vi->big_packets...
2013 Dec 05
6
[PATCH v2] virtio-net: free bufs correctly on invalid packet length
...rivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 916241d..6a4665c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -426,10 +426,10 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
pr_debug("%s: short packet %i\n", dev->name, len);
dev->stats.rx_length_errors++;
- if (vi->big_packets)
- give_pages(rq, buf);
- else if (vi->mergeable_rx_bufs)
+ if (vi->mergeable_rx_bufs)
put_page(virt_to_head_page(buf));
+ else if (vi->big_packets...
2016 Oct 20
0
[PATCH net-next v2 6/9] net: use core MTU range checking in virt drivers
...c_device_info device_info;
> - int limit = ETH_DATA_LEN;
> u32 num_chn;
> int ret = 0;
>
> if (ndevctx->start_remove || !nvdev || nvdev->destroy)
> return -ENODEV;
>
> - if (nvdev->nvsp_version >= NVSP_PROTOCOL_VERSION_2)
> - limit = NETVSC_MTU - ETH_HLEN;
> -
> - if (mtu < NETVSC_MTU_MIN || mtu > limit)
> - return -EINVAL;
> -
> ret = netvsc_close(ndev);
> if (ret)
> goto out;
> @@ -1402,6 +1395,13 @@ static int netvsc_probe(struct hv_device *dev,
> netif_set_real_num_tx_queues(net, nvdev->num_chn);
>...
2014 Nov 27
1
[PATCH v6 25/46] virtio_net: stricter short buffer length checks
...6f2cb..098f443 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -437,7 +437,7 @@ static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq,
struct sk_buff *skb;
struct virtio_net_hdr_mrg_rxbuf *hdr;
- if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
+ if (unlikely(len < vi->hdr_len + ETH_HLEN)) {
pr_debug("%s: short packet %i\n", dev->name, len);
dev->stats.rx_length_errors++;
if (vi->mergeable_rx_bufs) {
--
MST
2014 Nov 27
1
[PATCH v6 25/46] virtio_net: stricter short buffer length checks
...6f2cb..098f443 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -437,7 +437,7 @@ static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq,
struct sk_buff *skb;
struct virtio_net_hdr_mrg_rxbuf *hdr;
- if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
+ if (unlikely(len < vi->hdr_len + ETH_HLEN)) {
pr_debug("%s: short packet %i\n", dev->name, len);
dev->stats.rx_length_errors++;
if (vi->mergeable_rx_bufs) {
--
MST
2023 Jan 14
2
[PATCH net-next 1/2] virtio_net: Fix short frame length check
...o_net.c
> > > @@ -1248,7 +1248,7 @@ static void receive_buf(struct virtnet_info *vi,
> > struct receive_queue *rq,
> > > struct sk_buff *skb;
> > > struct virtio_net_hdr_mrg_rxbuf *hdr;
> > >
> > > - if (unlikely(len < vi->hdr_len + ETH_HLEN)) {
> > > + if (unlikely(len < vi->hdr_len + ETH_ZLEN)) {
> > > pr_debug("%s: short packet %i\n", dev->name, len);
> > > dev->stats.rx_length_errors++;
> > > if (vi->mergeable_rx_bufs) {
> >
>...
2018 Sep 06
1
[PATCH net-next 10/11] tap: accept an array of XDP buffs through sendmsg()
...) {
> + err = -ENOMEM;
> + goto err;
> + }
So fundamentally why is it called XDP?
We just build and skb, don't we?
> +
> + skb_reserve(skb, xdp->data - xdp->data_hard_start);
> + skb_put(skb, xdp->data_end - xdp->data);
> +
> + skb_set_network_header(skb, ETH_HLEN);
> + skb_reset_mac_header(skb);
> + skb->protocol = eth_hdr(skb)->h_proto;
> +
> + if (vnet_hdr_len) {
> + err = virtio_net_hdr_to_skb(skb, gso, tap_is_little_endian(q));
> + if (err)
> + goto err_kfree;
> + }
> +
> + skb_probe_transport_header(skb, ETH_HLEN...
2009 Nov 24
4
[Bridge] [PATCHv2 0/4] macvlan: add vepa and bridge mode
Second version, all feedback so far addressed, thanks for the
help and interest!
The patch to iproute2 has not changed, so I'm not including
it this time. Patch 4/4 (the netlink interface) is basically
unchanged as well but included for completeness.
The other changes have moved forward a bit, to the point where
I find them a lot cleaner and am more confident in the code
being ready for
2009 Nov 24
4
[Bridge] [PATCHv2 0/4] macvlan: add vepa and bridge mode
Second version, all feedback so far addressed, thanks for the
help and interest!
The patch to iproute2 has not changed, so I'm not including
it this time. Patch 4/4 (the netlink interface) is basically
unchanged as well but included for completeness.
The other changes have moved forward a bit, to the point where
I find them a lot cleaner and am more confident in the code
being ready for
2009 Nov 24
4
[Bridge] [PATCHv2 0/4] macvlan: add vepa and bridge mode
Second version, all feedback so far addressed, thanks for the
help and interest!
The patch to iproute2 has not changed, so I'm not including
it this time. Patch 4/4 (the netlink interface) is basically
unchanged as well but included for completeness.
The other changes have moved forward a bit, to the point where
I find them a lot cleaner and am more confident in the code
being ready for
2009 Nov 26
5
[Bridge] [PATCHv3 0/4] macvlan: add vepa and bridge mode
Not many changes this time, just integrated a bug fix
and all the coding style feedback from Eric Dumazet
and Patrick McHardy.
I'll keep the patch for network namespaces on the tx
path out of this series for now, because the discussion
is still ongoing and it addresses an unrelated issue.
---
Version 2 description:
The patch to iproute2 has not changed, so I'm not including
it this
2009 Nov 26
5
[Bridge] [PATCHv3 0/4] macvlan: add vepa and bridge mode
Not many changes this time, just integrated a bug fix
and all the coding style feedback from Eric Dumazet
and Patrick McHardy.
I'll keep the patch for network namespaces on the tx
path out of this series for now, because the discussion
is still ongoing and it addresses an unrelated issue.
---
Version 2 description:
The patch to iproute2 has not changed, so I'm not including
it this
2009 Nov 26
5
[Bridge] [PATCHv3 0/4] macvlan: add vepa and bridge mode
Not many changes this time, just integrated a bug fix
and all the coding style feedback from Eric Dumazet
and Patrick McHardy.
I'll keep the patch for network namespaces on the tx
path out of this series for now, because the discussion
is still ongoing and it addresses an unrelated issue.
---
Version 2 description:
The patch to iproute2 has not changed, so I'm not including
it this
2014 Oct 23
0
[PATCH RFC] tun: fix sparse warnings for virtio headers
...pu(false, gso.hdr_len) > len)
return -EINVAL;
offset += tun->vnet_hdr_sz;
}
@@ -1054,7 +1054,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) {
align += NET_IP_ALIGN;
if (unlikely(len < ETH_HLEN ||
- (gso.hdr_len && gso.hdr_len < ETH_HLEN)))
+ (gso.hdr_len && __virtio16_to_cpu(false, gso.hdr_len) < ETH_HLEN)))
return -EINVAL;
}
@@ -1065,7 +1065,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
* enough room for...
2014 Oct 23
0
[PATCH RFC] tun: fix sparse warnings for virtio headers
...pu(false, gso.hdr_len) > len)
return -EINVAL;
offset += tun->vnet_hdr_sz;
}
@@ -1054,7 +1054,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) {
align += NET_IP_ALIGN;
if (unlikely(len < ETH_HLEN ||
- (gso.hdr_len && gso.hdr_len < ETH_HLEN)))
+ (gso.hdr_len && __virtio16_to_cpu(false, gso.hdr_len) < ETH_HLEN)))
return -EINVAL;
}
@@ -1065,7 +1065,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
* enough room for...
2007 May 09
3
[patch 7/9] lguest: the net driver
...dev_kfree_skb(skb);
+ return 0;
+}
+
+/* Find a new skb to put in this slot in shared mem. */
+static int fill_slot(struct net_device *dev, unsigned int slot)
+{
+ struct lguestnet_info *info = dev->priv;
+ /* Try to create and register a new one. */
+ info->skb[slot] = netdev_alloc_skb(dev, ETH_HLEN + ETH_DATA_LEN);
+ if (!info->skb[slot]) {
+ printk("%s: could not fill slot %i\n", dev->name, slot);
+ return -ENOMEM;
+ }
+
+ skb_to_dma(info->skb[slot], ETH_HLEN + ETH_DATA_LEN, &info->dma[slot]);
+ wmb();
+ /* Now we tell hypervisor it can use the slot. */
+ info->...
2007 May 09
3
[patch 7/9] lguest: the net driver
...dev_kfree_skb(skb);
+ return 0;
+}
+
+/* Find a new skb to put in this slot in shared mem. */
+static int fill_slot(struct net_device *dev, unsigned int slot)
+{
+ struct lguestnet_info *info = dev->priv;
+ /* Try to create and register a new one. */
+ info->skb[slot] = netdev_alloc_skb(dev, ETH_HLEN + ETH_DATA_LEN);
+ if (!info->skb[slot]) {
+ printk("%s: could not fill slot %i\n", dev->name, slot);
+ return -ENOMEM;
+ }
+
+ skb_to_dma(info->skb[slot], ETH_HLEN + ETH_DATA_LEN, &info->dma[slot]);
+ wmb();
+ /* Now we tell hypervisor it can use the slot. */
+ info->...
2012 Dec 26
5
[RFC PATCH] virtio-net: reset virtqueue affinity when doing cpu hotplug
...linux/cpu.h>
static int napi_weight = 128;
module_param(napi_weight, int, 0444);
@@ -34,6 +35,8 @@ static bool csum = true, gso = true;
module_param(csum, bool, 0444);
module_param(gso, bool, 0444);
+static bool cpu_hotplug = false;
+
/* FIXME: MTU in config. */
#define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
#define GOOD_COPY_LEN 128
@@ -1041,6 +1044,26 @@ static void virtnet_set_affinity(struct virtnet_info *vi, bool set)
vi->affinity_hint_set = false;
}
+static int virtnet_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+...