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pktgen: ipv6: numa: consolidate skb allocation to pktgen_alloc_skb

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We currently allow for numa-node aware skb allocation only within the
fill_packet_ipv4() path, but not in fill_packet_ipv6(). Consolidate that
code to a common allocation helper to enable numa-node aware skb
allocation for ipv6, and use it in both paths. This also makes both
functions a bit more readable.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2013-06-08 14:18:16 +02:00 committed by David S. Miller
parent da5bab079f
commit 7a6e288d27
1 changed files with 27 additions and 25 deletions
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52
net/core/pktgen.c
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@ -2627,6 +2627,29 @@ static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb,
pgh->tv_usec = htonl(timestamp.tv_usec);
}
static struct sk_buff *pktgen_alloc_skb(struct net_device *dev,
struct pktgen_dev *pkt_dev,
unsigned int extralen)
{
struct sk_buff *skb = NULL;
unsigned int size = pkt_dev->cur_pkt_size + 64 + extralen +
pkt_dev->pkt_overhead;
if (pkt_dev->flags & F_NODE) {
int node = pkt_dev->node >= 0 ? pkt_dev->node : numa_node_id();
skb = __alloc_skb(NET_SKB_PAD + size, GFP_NOWAIT, 0, node);
if (likely(skb)) {
skb_reserve(skb, NET_SKB_PAD);
skb->dev = dev;
}
} else {
skb = __netdev_alloc_skb(dev, size, GFP_NOWAIT);
}
return skb;
}
static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
struct pktgen_dev *pkt_dev)
{
@ -2657,32 +2680,13 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
datalen = (odev->hard_header_len + 16) & ~0xf;
if (pkt_dev->flags & F_NODE) {
int node;
if (pkt_dev->node >= 0)
node = pkt_dev->node;
else
node = numa_node_id();
skb = __alloc_skb(NET_SKB_PAD + pkt_dev->cur_pkt_size + 64
+ datalen + pkt_dev->pkt_overhead, GFP_NOWAIT, 0, node);
if (likely(skb)) {
skb_reserve(skb, NET_SKB_PAD);
skb->dev = odev;
}
}
else
skb = __netdev_alloc_skb(odev,
pkt_dev->cur_pkt_size + 64
+ datalen + pkt_dev->pkt_overhead, GFP_NOWAIT);
skb = pktgen_alloc_skb(odev, pkt_dev, datalen);
if (!skb) {
sprintf(pkt_dev->result, "No memory");
return NULL;
}
prefetchw(skb->data);
prefetchw(skb->data);
skb_reserve(skb, datalen);
/* Reserve for ethernet and IP header */
@ -2786,15 +2790,13 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
mod_cur_headers(pkt_dev);
queue_map = pkt_dev->cur_queue_map;
skb = __netdev_alloc_skb(odev,
pkt_dev->cur_pkt_size + 64
+ 16 + pkt_dev->pkt_overhead, GFP_NOWAIT);
skb = pktgen_alloc_skb(odev, pkt_dev, 16);
if (!skb) {
sprintf(pkt_dev->result, "No memory");
return NULL;
}
prefetchw(skb->data);
prefetchw(skb->data);
skb_reserve(skb, 16);
/* Reserve for ethernet and IP header */