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[NET] gso: Add skb_is_gso

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This patch adds the wrapper function skb_is_gso which can be used instead
of directly testing skb_shinfo(skb)->gso_size.  This makes things a little
nicer and allows us to change the primary key for indicating whether an skb
is GSO (if we ever want to do that).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-07-08 13:34:32 -07:00 committed by David S. Miller
parent 9c6c6795ed
commit 89114afd43
18 changed files with 27 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/bnx2.c
View file

@ -1639,7 +1639,7 @@ bnx2_tx_int(struct bnx2 *bp)
skb = tx_buf->skb;
#ifdef BCM_TSO
/* partial BD completions possible with TSO packets */
if (skb_shinfo(skb)->gso_size) {
if (skb_is_gso(skb)) {
u16 last_idx, last_ring_idx;
last_idx = sw_cons +

2
drivers/net/chelsio/sge.c
View file

@ -1417,7 +1417,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct cpl_tx_pkt *cpl;
#ifdef NETIF_F_TSO
if (skb_shinfo(skb)->gso_size) {
if (skb_is_gso(skb)) {
int eth_type;
struct cpl_tx_pkt_lso *hdr;

7
drivers/net/e1000/e1000_main.c
View file

@ -2394,7 +2394,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
uint8_t ipcss, ipcso, tucss, tucso, hdr_len;
int err;
if (skb_shinfo(skb)->gso_size) {
if (skb_is_gso(skb)) {
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (err)
@ -2519,7 +2519,7 @@ e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
* tso gets written back prematurely before the data is fully
* DMA'd to the controller */
if (!skb->data_len && tx_ring->last_tx_tso &&
!skb_shinfo(skb)->gso_size) {
!skb_is_gso(skb)) {
tx_ring->last_tx_tso = 0;
size -= 4;
}
@ -2806,8 +2806,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
#ifdef NETIF_F_TSO
/* Controller Erratum workaround */
if (!skb->data_len && tx_ring->last_tx_tso &&
!skb_shinfo(skb)->gso_size)
if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
count++;
#endif

2
drivers/net/forcedeth.c
View file

@ -1495,7 +1495,7 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
np->tx_skbuff[nr] = skb;
#ifdef NETIF_F_TSO
if (skb_shinfo(skb)->gso_size)
if (skb_is_gso(skb))
tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
else
#endif

2
drivers/net/ixgb/ixgb_main.c
View file

@ -1173,7 +1173,7 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
uint16_t ipcse, tucse, mss;
int err;
if(likely(skb_shinfo(skb)->gso_size)) {
if (likely(skb_is_gso(skb))) {
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (err)

2
drivers/net/loopback.c
View file

@ -139,7 +139,7 @@ static int loopback_xmit(struct sk_buff *skb, struct net_device *dev)
#endif
#ifdef LOOPBACK_TSO
if (skb_shinfo(skb)->gso_size) {
if (skb_is_gso(skb)) {
BUG_ON(skb->protocol != htons(ETH_P_IP));
BUG_ON(skb->nh.iph->protocol != IPPROTO_TCP);

2
drivers/net/myri10ge/myri10ge.c
View file

@ -2116,7 +2116,7 @@ abort_linearize:
}
idx = (idx + 1) & tx->mask;
} while (idx != last_idx);
if (skb_shinfo(skb)->gso_size) {
if (skb_is_gso(skb)) {
printk(KERN_ERR
"myri10ge: %s: TSO but wanted to linearize?!?!?\n",
mgp->dev->name);

2
drivers/net/sky2.c
View file

@ -1159,7 +1159,7 @@ static unsigned tx_le_req(const struct sk_buff *skb)
count = sizeof(dma_addr_t) / sizeof(u32);
count += skb_shinfo(skb)->nr_frags * count;
if (skb_shinfo(skb)->gso_size)
if (skb_is_gso(skb))
++count;
if (skb->ip_summed == CHECKSUM_HW)

4
drivers/net/typhoon.c
View file

@ -805,7 +805,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
* If problems develop with TSO, check this first.
*/
numDesc = skb_shinfo(skb)->nr_frags + 1;
if(skb_tso_size(skb))
if (skb_is_gso(skb))
numDesc++;
/* When checking for free space in the ring, we need to also
@ -845,7 +845,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
TYPHOON_TX_PF_VLAN_TAG_SHIFT);
}
if(skb_tso_size(skb)) {
if (skb_is_gso(skb)) {
first_txd->processFlags |= TYPHOON_TX_PF_TCP_SEGMENT;
first_txd->numDesc++;

2
drivers/s390/net/qeth_main.c
View file

@ -4457,7 +4457,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
queue = card->qdio.out_qs
[qeth_get_priority_queue(card, skb, ipv, cast_type)];
if (skb_shinfo(skb)->gso_size)
if (skb_is_gso(skb))
large_send = card->options.large_send;
/*are we able to do TSO ? If so ,prepare and send it from here */

2
include/linux/netdevice.h
View file

@ -1001,7 +1001,7 @@ static inline int net_gso_ok(int features, int gso_type)
static inline int skb_gso_ok(struct sk_buff *skb, int features)
{
return net_gso_ok(features, skb_shinfo(skb)->gso_size ?
return net_gso_ok(features, skb_is_gso(skb) ?
skb_shinfo(skb)->gso_type : 0);
}

5
include/linux/skbuff.h
View file

@ -1455,5 +1455,10 @@ static inline void skb_init_secmark(struct sk_buff *skb)
{ }
#endif
static inline int skb_is_gso(const struct sk_buff *skb)
{
return skb_shinfo(skb)->gso_size;
}
#endif /* __KERNEL__ */
#endif /* _LINUX_SKBUFF_H */

2
net/bridge/br_forward.c
View file

@ -35,7 +35,7 @@ static inline unsigned packet_length(const struct sk_buff *skb)
int br_dev_queue_push_xmit(struct sk_buff *skb)
{
/* drop mtu oversized packets except gso */
if (packet_length(skb) > skb->dev->mtu && !skb_shinfo(skb)->gso_size)
if (packet_length(skb) > skb->dev->mtu && !skb_is_gso(skb))
kfree_skb(skb);
else {
#ifdef CONFIG_BRIDGE_NETFILTER

2
net/bridge/br_netfilter.c
View file

@ -761,7 +761,7 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
{
if (skb->protocol == htons(ETH_P_IP) &&
skb->len > skb->dev->mtu &&
!skb_shinfo(skb)->gso_size)
!skb_is_gso(skb))
return ip_fragment(skb, br_dev_queue_push_xmit);
else
return br_dev_queue_push_xmit(skb);

4
net/ipv4/ip_output.c
View file

@ -209,7 +209,7 @@ static inline int ip_finish_output(struct sk_buff *skb)
return dst_output(skb);
}
#endif
if (skb->len > dst_mtu(skb->dst) && !skb_shinfo(skb)->gso_size)
if (skb->len > dst_mtu(skb->dst) && !skb_is_gso(skb))
return ip_fragment(skb, ip_finish_output2);
else
return ip_finish_output2(skb);
@ -1095,7 +1095,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page,
while (size > 0) {
int i;
if (skb_shinfo(skb)->gso_size)
if (skb_is_gso(skb))
len = size;
else {

2
net/ipv4/xfrm4_output.c
View file

@ -134,7 +134,7 @@ static int xfrm4_output_finish(struct sk_buff *skb)
}
#endif
if (!skb_shinfo(skb)->gso_size)
if (!skb_is_gso(skb))
return xfrm4_output_finish2(skb);
skb->protocol = htons(ETH_P_IP);

4
net/ipv6/ip6_output.c
View file

@ -147,7 +147,7 @@ static int ip6_output2(struct sk_buff *skb)
int ip6_output(struct sk_buff *skb)
{
if ((skb->len > dst_mtu(skb->dst) && !skb_shinfo(skb)->gso_size) ||
if ((skb->len > dst_mtu(skb->dst) && !skb_is_gso(skb)) ||
dst_allfrag(skb->dst))
return ip6_fragment(skb, ip6_output2);
else
@ -229,7 +229,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
skb->priority = sk->sk_priority;
mtu = dst_mtu(dst);
if ((skb->len <= mtu) || ipfragok || skb_shinfo(skb)->gso_size) {
if ((skb->len <= mtu) || ipfragok || skb_is_gso(skb)) {
IP6_INC_STATS(IPSTATS_MIB_OUTREQUESTS);
return NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev,
dst_output);

2
net/ipv6/xfrm6_output.c
View file

@ -122,7 +122,7 @@ static int xfrm6_output_finish(struct sk_buff *skb)
{
struct sk_buff *segs;
if (!skb_shinfo(skb)->gso_size)
if (!skb_is_gso(skb))
return xfrm6_output_finish2(skb);
skb->protocol = htons(ETH_P_IP);