5 #include <net/tso.h>
16 void tso_build_hdr(struct sk_buff *skb, char *hdr, struct tso_t *tso,  in tso_build_hdr()  argument
24 	if (!tso->ipv6) {  in tso_build_hdr()
27 		iph->id = htons(tso->ip_id);  in tso_build_hdr()
29 		tso->ip_id++;  in tso_build_hdr()
36 	put_unaligned_be32(tso->tcp_seq, &tcph->seq);  in tso_build_hdr()
47 void tso_build_data(struct sk_buff *skb, struct tso_t *tso, int size)  in tso_build_data()  argument
49 	tso->tcp_seq += size;  in tso_build_data()
50 	tso->size -= size;  in tso_build_data()
51 	tso->data += size;  in tso_build_data()
53 	if ((tso->size == 0) &&  in tso_build_data()
54 	    (tso->next_frag_idx < skb_shinfo(skb)->nr_frags)) {  in tso_build_data()
55 		skb_frag_t *frag = &skb_shinfo(skb)->frags[tso->next_frag_idx];  in tso_build_data()
58 		tso->size = frag->size;  in tso_build_data()
59 		tso->data = page_address(frag->page.p) + frag->page_offset;  in tso_build_data()
60 		tso->next_frag_idx++;  in tso_build_data()
65 void tso_start(struct sk_buff *skb, struct tso_t *tso)  in tso_start()  argument
69 	tso->ip_id = ntohs(ip_hdr(skb)->id);  in tso_start()
70 	tso->tcp_seq = ntohl(tcp_hdr(skb)->seq);  in tso_start()
71 	tso->next_frag_idx = 0;  in tso_start()
72 	tso->ipv6 = vlan_get_protocol(skb) == htons(ETH_P_IPV6);  in tso_start()
75 	tso->size = skb_headlen(skb) - hdr_len;  in tso_start()
76 	tso->data = skb->data + hdr_len;  in tso_start()
77 	if ((tso->size == 0) &&  in tso_start()
78 	    (tso->next_frag_idx < skb_shinfo(skb)->nr_frags)) {  in tso_start()
79 		skb_frag_t *frag = &skb_shinfo(skb)->frags[tso->next_frag_idx];  in tso_start()
82 		tso->size = frag->size;  in tso_start()
83 		tso->data = page_address(frag->page.p) + frag->page_offset;  in tso_start()
84 		tso->next_frag_idx++;  in tso_start()