From 7967168cefdbc63bf332d6b1548eca7cd65ebbcc Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 22 Jun 2006 02:40:14 -0700 Subject: [NET]: Merge TSO/UFO fields in sk_buff Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not going to scale if we add any more segmentation methods (e.g., DCCP). So let's merge them. They were used to tell the protocol of a packet. This function has been subsumed by the new gso_type field. This is essentially a set of netdev feature bits (shifted by 16 bits) that are required to process a specific skb. As such it's easy to tell whether a given device can process a GSO skb: you just have to and the gso_type field and the netdev's features field. I've made gso_type a conjunction. The idea is that you have a base type (e.g., SKB_GSO_TCPV4) that can be modified further to support new features. For example, if we add a hardware TSO type that supports ECN, they would declare NETIF_F_TSO | NETIF_F_TSO_ECN. All TSO packets with CWR set would have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO packets would be SKB_GSO_TCPV4. This means that only the CWR packets need to be emulated in software. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- drivers/net/chelsio/sge.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/chelsio') diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c index 4391bf4bf573..53efff6da784 100644 --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -1418,7 +1418,7 @@ 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)->tso_size) { + if (skb_shinfo(skb)->gso_size) { int eth_type; struct cpl_tx_pkt_lso *hdr; @@ -1433,7 +1433,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) hdr->ip_hdr_words = skb->nh.iph->ihl; hdr->tcp_hdr_words = skb->h.th->doff; hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type, - skb_shinfo(skb)->tso_size)); + skb_shinfo(skb)->gso_size)); hdr->len = htonl(skb->len - sizeof(*hdr)); cpl = (struct cpl_tx_pkt *)hdr; sge->stats.tx_lso_pkts++; -- cgit v1.2.2