| /Linux-v5.15/Documentation/networking/ |
| 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-v5.15/include/uapi/linux/ |
| D | virtio_net.h | 139 __virtio16 csum_start; member
189 __virtio16 csum_start; /* Position to start checksumming from */ member
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| /Linux-v5.15/include/linux/ |
| D | virtio_net.h | 68 u32 start = __virtio16_to_cpu(little_endian, hdr->csum_start); in virtio_net_hdr_to_skb()
168 hdr->csum_start = __cpu_to_virtio16(little_endian, in virtio_net_hdr_from_skb()
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| D | skbuff.h | 883 __u16 csum_start; member
2628 return skb->csum_start - skb_headroom(skb); in skb_checksum_start_offset()
2633 return skb->head + skb->csum_start; in skb_checksum_start()
4173 skb->csum_start = ((unsigned char *)ptr + start) - skb->head; in skb_remcsum_adjust_partial()
4486 __u16 csum_start; member
4519 SKB_GSO_CB(skb)->csum_start = skb_checksum_start(skb) - skb->head; in gso_reset_checksum()
4532 unsigned char *csum_start = skb_transport_header(skb); in gso_make_checksum() local
4533 int plen = (skb->head + SKB_GSO_CB(skb)->csum_start) - csum_start; in gso_make_checksum()
4537 SKB_GSO_CB(skb)->csum_start = csum_start - skb->head; in gso_make_checksum()
4539 return csum_fold(csum_partial(csum_start, plen, partial)); in gso_make_checksum()
[all …]
|
| /Linux-v5.15/drivers/net/ethernet/sfc/ |
| D | ef100_tx.c | 138 int csum_start; in ef100_set_tx_csum_partial() local
146 csum_start = skb_checksum_start_offset(skb); in ef100_set_tx_csum_partial()
150 csum_start >> 1, in ef100_set_tx_csum_partial()
|
| /Linux-v5.15/net/sctp/ |
| D | offload.c | 34 SKB_GSO_CB(skb)->csum_start = skb_headroom(skb) + skb->len; in sctp_gso_make_checksum()
|
| /Linux-v5.15/tools/testing/selftests/net/ |
| 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()
|
| D | txtimestamp.c | 418 const void *csum_start = udph; in get_udp_csum() local
424 csum_start -= alen * 2; in get_udp_csum()
427 return get_ip_csum(csum_start, csum_len >> 1, pseudo_sum); in get_udp_csum()
|
| /Linux-v5.15/include/net/ |
| D | ip6_checksum.h | 70 skb->csum_start = skb_transport_header(skb) - skb->head; in __tcp_v6_send_check()
|
| D | gre.h | 142 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_build_header()
|
| /Linux-v5.15/fs/btrfs/ |
| D | file-item.c | 266 u64 csum_start; in search_csum_tree() local
279 csum_start = key.offset; in search_csum_tree()
282 if (in_range(disk_bytenr, csum_start, csum_len)) in search_csum_tree()
296 csum_start = key.offset; in search_csum_tree()
298 ASSERT(in_range(disk_bytenr, csum_start, csum_len)); in search_csum_tree()
301 ret = (min(csum_start + csum_len, disk_bytenr + len) - in search_csum_tree()
|
| /Linux-v5.15/net/ipv4/ |
| D | fou.c | 1035 u16 csum_start = skb_checksum_start_offset(skb); in __gue_build_header() local
1038 if (csum_start < hdrlen) in __gue_build_header()
1041 csum_start -= hdrlen; in __gue_build_header()
1042 pd[0] = htons(csum_start); in __gue_build_header()
1043 pd[1] = htons(csum_start + skb->csum_offset); in __gue_build_header()
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| D | gre_offload.c | 112 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_gso_segment()
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| D | udp_offload.c | 143 skb->csum_start = skb_transport_header(skb) - skb->head; in __skb_udp_tunnel_segment()
621 skb->csum_start = (unsigned char *)uh - skb->head; in udp_gro_complete_segment()
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| D | tcp_offload.c | 292 skb->csum_start = (unsigned char *)th - skb->head; in tcp_gro_complete()
|
| /Linux-v5.15/net/ipv6/ |
| D | ip6_checksum.c | 132 skb->csum_start = skb_transport_header(skb) - skb->head; in udp6_set_csum()
|
| /Linux-v5.15/drivers/net/wireless/ath/ath6kl/ |
| 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()
|
| /Linux-v5.15/net/netfilter/ipvs/ |
| D | ip_vs_xmit.c | 1055 u16 csum_start = skb_checksum_start_offset(skb); in ipvs_gue_encap() local
1062 if (csum_start < hdrlen) in ipvs_gue_encap()
1065 csum_start -= hdrlen; in ipvs_gue_encap()
1067 pd[0] = htons(csum_start); in ipvs_gue_encap()
1068 pd[1] = htons(csum_start + skb->csum_offset); in ipvs_gue_encap()
|
| /Linux-v5.15/net/hsr/ |
| D | hsr_forward.c | 94 skb->csum_start -= HSR_HLEN; in create_stripped_skb_hsr()
264 skb->csum_start += HSR_HLEN; in hsr_create_tagged_frame()
|
| /Linux-v5.15/drivers/net/can/ |
| D | vxcan.c | 60 skb->csum_start = 0; in vxcan_xmit()
|
| /Linux-v5.15/net/ipv4/netfilter/ |
| D | nf_reject_ipv4.c | 216 nskb->csum_start = (unsigned char *)tcph - nskb->head; in nf_reject_ip_tcphdr_put()
|
| /Linux-v5.15/net/bridge/ |
| D | br_multicast.c | 809 void *csum_start = NULL; in br_ip4_multicast_alloc_query() local
891 csum_start = (void *)ih; in br_ip4_multicast_alloc_query()
907 csum_start = (void *)ihv3; in br_ip4_multicast_alloc_query()
929 if (WARN_ON(!csum || !csum_start)) { in br_ip4_multicast_alloc_query()
934 *csum = ip_compute_csum(csum_start, igmp_hdr_size); in br_ip4_multicast_alloc_query()
957 void *csum_start = NULL; in br_ip6_multicast_alloc_query() local
1054 csum_start = (void *)mldq; in br_ip6_multicast_alloc_query()
1070 csum_start = (void *)mld2q; in br_ip6_multicast_alloc_query()
1092 if (WARN_ON(!csum || !csum_start)) { in br_ip6_multicast_alloc_query()
1099 csum_partial(csum_start, mld_hdr_size, 0)); in br_ip6_multicast_alloc_query()
|
| /Linux-v5.15/net/core/ |
| D | selftests.c | 157 skb->csum_start = skb_transport_header(skb) - skb->head; in net_test_get_skb()
|
| /Linux-v5.15/net/tls/ |
| D | tls_device_fallback.c | 181 skb->csum_start = skb_transport_header(skb) - skb->head; in update_chksum()
|
| /Linux-v5.15/drivers/net/ethernet/broadcom/ |
| D | bcmsysport.c | 1243 u16 csum_start; in bcm_sysport_insert_tsb() local
1284 csum_start = skb_checksum_start_offset(skb) - sizeof(*tsb); in bcm_sysport_insert_tsb()
1287 csum_start += VLAN_HLEN; in bcm_sysport_insert_tsb()
1288 csum_info = (csum_start + skb->csum_offset) & L4_CSUM_PTR_MASK; in bcm_sysport_insert_tsb()
1289 csum_info |= (csum_start << L4_PTR_SHIFT); in bcm_sysport_insert_tsb()
|
