| /linux/include/net/ |
| H A D | gso.h | 21 __u16 csum_start; member
54 SKB_GSO_CB(skb)->csum_start = skb_checksum_start(skb) - skb->head; in gso_reset_checksum()
67 unsigned char *csum_start = skb_transport_header(skb); in gso_make_checksum() local
68 int plen = (skb->head + SKB_GSO_CB(skb)->csum_start) - csum_start; in gso_make_checksum()
72 SKB_GSO_CB(skb)->csum_start = csum_start - skb->head; in gso_make_checksum()
74 return csum_fold(csum_partial(csum_start, plen, partial)); in gso_make_checksum()
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| H A D | xdp_sock.h | 119 void (*tmo_request_checksum)(u16 csum_start, u16 csum_offset, void *priv);
180 ops->tmo_request_checksum(meta->request.csum_start, in xsk_tx_metadata_request()
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| H A D | gre.h | 140 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_build_header()
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| /linux/Documentation/networking/ |
| H A D | checksum-offloads.rst | 33 checksum defined by the sk_buff fields skb->csum_start and skb->csum_offset.
35 'IP-style' checksum) from csum_start to the end of the packet, and fill in the
36 result at (csum_start + csum_offset).
49 skb->csum_start and skb->csum_offset as described above, and setting
63 which only advertises NETIF_F_IP[V6]_CSUM must still obey the csum_start and
97 from csum_start to the end of the packet will be equal to the complement of
100 summing when we get to csum_start, then add the complement of the 16-bit word
101 at (csum_start + csum_offset).
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| /linux/include/linux/ |
| H A D | virtio_net.h | 97 u32 start = __virtio16_to_cpu(little_endian, hdr->csum_start); in __virtio_net_hdr_to_skb()
274 hdr->csum_start = __cpu_to_virtio16(little_endian, in virtio_net_hdr_from_skb()
333 inner_th = __virtio16_to_cpu(little_endian, hdr->csum_start); in virtio_net_hdr_tnl_to_skb()
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| H A D | skbuff.h | 1042 __u16 csum_start;
3227 return skb->csum_start - skb_headroom(skb); in skb_checksum_start_offset()
3232 return skb->head + skb->csum_start; in skb_checksum_start()
4955 skb->csum_start = ((unsigned char *)ptr + start) - skb->head; in skb_remcsum_adjust_partial()
5379 unsigned char *csum_start = skb_checksum_start(skb); in lco_csum() local
5384 partial = ~csum_unfold(*(__force __sum16 *)(csum_start + in lco_csum()
5390 return csum_partial(l4_hdr, csum_start - l4_hdr, partial); in lco_csum()
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| /linux/tools/testing/selftests/net/lib/ |
| H A D | csum.c | 423 vh.csum_start = sizeof(struct ethhdr) + sizeof(struct ipv6hdr); in send_packet()
426 vh.csum_start = sizeof(struct ethhdr) + sizeof(struct iphdr); in send_packet()
431 vh.csum_start += ENC_HEADER_LEN; in send_packet()
435 vh.hdr_len = vh.csum_start + sizeof(struct tcphdr); in send_packet()
438 vh.hdr_len = vh.csum_start + sizeof(struct udphdr); in send_packet()
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| /linux/include/uapi/linux/ |
| H A D | virtio_net.h | 173 __virtio16 csum_start; member
230 __virtio16 csum_start; /* Position to start checksumming from */ member
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| H A D | if_xdp.h | 149 __u16 csum_start; member
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| /linux/tools/testing/selftests/bpf/progs/ |
| H A D | decap_sanity.c | 28 return skb->csum_start - skb_headroom(skb); in skb_checksum_start_offset()
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| /linux/tools/include/uapi/linux/ |
| H A D | if_xdp.h | 149 __u16 csum_start; member
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| /linux/tools/testing/selftests/net/ |
| H A D | psock_snd.c | 84 vh->csum_start = ETH_HLEN + sizeof(struct iphdr); in build_vnet_header()
89 vh->csum_start += sizeof(struct udphdr) + cfg_payload_len - in build_vnet_header()
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| H A D | txtimestamp.c | 424 const void *csum_start = udph; in get_udp_csum()
430 csum_start -= alen * 2; in get_udp_csum()
433 return get_ip_csum(csum_start, csum_len >> 1, pseudo_sum); in get_udp_csum()
426 const void *csum_start = udph; get_udp_csum() local
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| /linux/fs/btrfs/ |
| H A D | file-item.c | 288 u64 csum_start; in search_csum_tree() local
301 csum_start = key.offset; in search_csum_tree()
304 if (in_range(disk_bytenr, csum_start, csum_len)) in search_csum_tree()
326 csum_start = key.offset; in search_csum_tree()
328 ASSERT(in_range(disk_bytenr, csum_start, csum_len)); in search_csum_tree()
331 ret = (min(csum_start + csum_len, disk_bytenr + len) - in search_csum_tree()
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| /linux/net/sctp/ |
| H A D | offload.c | 31 /* csum and csum_start in GSO CB may be needed to do the UDP in sctp_gso_make_checksum()
35 SKB_GSO_CB(skb)->csum_start = skb_headroom(skb) + skb->len; in sctp_gso_make_checksum()
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| /linux/drivers/net/wireless/ath/ath6kl/ |
| H A D | txrx.c | 369 u8 csum_start = 0, csum_dest = 0, csum = skb->ip_summed; in ath6kl_data_tx() local
396 csum_start = skb->csum_start - in ath6kl_data_tx()
399 csum_dest = skb->csum_offset + csum_start; in ath6kl_data_tx()
415 meta_v2.csum_start = csum_start; in ath6kl_data_tx()
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| /linux/tools/testing/selftests/bpf/ |
| H A D | xdp_hw_metadata.c | 417 meta->request.csum_start = sizeof(*eth) + sizeof(*iph); in ping_pong()
419 meta->request.csum_start = sizeof(*eth) + sizeof(*ip6h); in ping_pong()
424 meta->request.csum_start, meta->request.csum_offset); in ping_pong()
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| /linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ |
| H A D | psp_rxtx.c | 87 (skb->csum_start + skb->head - skb->data) / 2; in mlx5e_psp_set_swp()
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| H A D | ipsec_rxtx.c | 142 (skb->csum_start + skb->head - skb->data) / 2; in mlx5e_ipsec_set_swp()
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| /linux/drivers/net/ |
| H A D | tun_vnet.h | 137 …hdr_len = max(tun_vnet16_to_cpu(flags, hdr->csum_start) + tun_vnet16_to_cpu(flags, hdr->csum_offse… in __tun_vnet_hdr_get()
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| H A D | amt.c | 517 void *csum_start = NULL; in amt_build_igmp_gq() local
571 csum_start = (void *)ihv3; in amt_build_igmp_gq()
572 *csum = ip_compute_csum(csum_start, sizeof(*ihv3)); in amt_build_igmp_gq()
813 void *csum_start = NULL; in amt_build_mld_gq() local
866 csum_start = (void *)mld2q; in amt_build_mld_gq()
870 csum_partial(csum_start, in amt_build_mld_gq()
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| /linux/net/ipv4/ |
| H A D | gre_offload.c | 114 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_gso_segment()
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| /linux/net/bridge/ |
| H A D | br_multicast.c | 937 void *csum_start = NULL; in br_ip4_multicast_alloc_query() local
1019 csum_start = (void *)ih; in br_ip4_multicast_alloc_query()
1035 csum_start = (void *)ihv3; in br_ip4_multicast_alloc_query()
1057 if (WARN_ON(!csum || !csum_start)) { in br_ip4_multicast_alloc_query()
1062 *csum = ip_compute_csum(csum_start, igmp_hdr_size); in br_ip4_multicast_alloc_query()
1085 void *csum_start = NULL; in br_ip6_multicast_alloc_query() local
1182 csum_start = (void *)mldq; in br_ip6_multicast_alloc_query()
1198 csum_start = (void *)mld2q; in br_ip6_multicast_alloc_query()
1220 if (WARN_ON(!csum || !csum_start)) { in br_ip6_multicast_alloc_query()
1227 csum_partial(csum_start, mld_hdr_size, 0)); in br_ip6_multicast_alloc_query()
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| /linux/drivers/net/ethernet/broadcom/ |
| H A D | bcmsysport.c | 1220 u16 csum_start; in bcm_sysport_insert_tsb() local
1261 csum_start = skb_checksum_start_offset(skb) - sizeof(*tsb); in bcm_sysport_insert_tsb()
1264 csum_start += VLAN_HLEN; in bcm_sysport_insert_tsb()
1265 csum_info = (csum_start + skb->csum_offset) & L4_CSUM_PTR_MASK; in bcm_sysport_insert_tsb()
1266 csum_info |= (csum_start << L4_PTR_SHIFT); in bcm_sysport_insert_tsb()
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| /linux/net/core/ |
| H A D | selftests.c | 131 skb->csum_start = skb_transport_header(skb) - skb->head; in net_test_get_skb()
|