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Searched refs:csum_start (Results 1 – 25 of 58) sorted by relevance

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/linux/include/net/
H A Dgso.h21 __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()
H A Dxdp_sock.h119 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()
H A Dgre.h140 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_build_header()
/linux/Documentation/networking/
H A Dchecksum-offloads.rst30 checksum defined by the sk_buff fields skb->csum_start and skb->csum_offset.
32 'IP-style' checksum) from csum_start to the end of the packet, and fill in the
33 result at (csum_start + csum_offset).
46 skb->csum_start and skb->csum_offset as described above, setting
92 from csum_start to the end of the packet will be equal to the complement of
95 summing when we get to csum_start, then add the complement of the 16-bit word
96 at (csum_start + csum_offset).
/linux/include/linux/
H A Dvirtio_net.h97 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()
H A Dskbuff.h155 * referred to by skb->csum_start + skb->csum_offset and any preceding
169 * from &sk_buff.csum_start up to the end, and to record/write the checksum at
170 * offset &sk_buff.csum_start + &sk_buff.csum_offset.
172 * csum_start and csum_offset values are valid values given the length and
175 * purview of the stack to validate that csum_start and csum_offset are set
218 * will set csum_start and csum_offset accordingly, set ip_summed to
229 * to %CHECKSUM_PARTIAL and set csum_start and csum_offset
242 * with GSO then ip_summed is %CHECKSUM_PARTIAL, and both csum_start and
795 * @csum_start: Offset from skb->head where checksumming should start
796 * @csum_offset: Offset from csum_start wher
5381 unsigned char *csum_start = skb_checksum_start(skb); lco_csum() local
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/linux/tools/testing/selftests/net/lib/
H A Dcsum.c423 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()
/linux/include/uapi/linux/
H A Dvirtio_net.h173 __virtio16 csum_start; member
230 __virtio16 csum_start; /* Position to start checksumming from */ member
H A Dif_xdp.h149 __u16 csum_start; member
/linux/tools/testing/selftests/bpf/progs/
H A Ddecap_sanity.c28 return skb->csum_start - skb_headroom(skb); in skb_checksum_start_offset()
/linux/tools/include/uapi/linux/
H A Dif_xdp.h149 __u16 csum_start; member
/linux/tools/testing/selftests/net/
H A Dpsock_snd.c84 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()
H A Dtxtimestamp.c424 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
/linux/fs/btrfs/
H A Dfile-item.c288 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()
329 "disk_bytenr=%llu csum_start=%llu csum_len=%llu", in search_csum_tree()
330 disk_bytenr, csum_start, csum_len); in search_csum_tree()
333 ret = (min(csum_start + csum_len, disk_bytenr + len) - in search_csum_tree()
/linux/net/sctp/
H A Doffload.c31 /* 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()
/linux/drivers/net/wireless/ath/ath6kl/
H A Dtxrx.c369 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/tools/testing/selftests/bpf/
H A Dxdp_hw_metadata.c417 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()
/linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/
H A Dpsp_rxtx.c87 (skb->csum_start + skb->head - skb->data) / 2; in mlx5e_psp_set_swp()
H A Dipsec_rxtx.c142 (skb->csum_start + skb->head - skb->data) / 2; in mlx5e_ipsec_set_swp()
/linux/net/xdp/
H A Dxsk.c806 u16 csum_start, csum_offset; in xsk_skb_metadata()
816 csum_start = READ_ONCE(meta->request.csum_start); in xsk_skb_metadata()
819 if (unlikely(csum_start + csum_offset + in xsk_skb_metadata()
823 skb->csum_start = hr + csum_start; in xsk_skb_metadata()
805 u16 csum_start, csum_offset; xsk_skb_metadata() local
/linux/drivers/net/
H A Dtun_vnet.h137 …hdr_len = max(tun_vnet16_to_cpu(flags, hdr->csum_start) + tun_vnet16_to_cpu(flags, hdr->csum_offse… in __tun_vnet_hdr_get()
/linux/net/ipv4/
H A Dudp_offload.c301 skb->csum_start = skb_transport_header(skb) - skb->head; in __skb_udp_tunnel_segment()
525 gso_skb->csum_start = skb_transport_header(gso_skb) - gso_skb->head; in __udp_gso_segment()
902 skb->csum_start = (unsigned char *)uh - skb->head; in udp_gro_complete_segment()
H A Dgre_offload.c114 skb->csum_start = skb_transport_header(skb) - skb->head; in gre_gso_segment()
/linux/net/hsr/
H A Dhsr_forward.c165 skb->csum_start -= HSR_HLEN; in create_stripped_skb_hsr()
357 skb->csum_start += HSR_HLEN; in hsr_create_tagged_frame()
/linux/net/bridge/
H A Dbr_multicast.c938 void *csum_start = NULL; in br_ip4_multicast_alloc_query()
1019 csum_start = (void *)ih; in br_ip4_multicast_alloc_query()
1033 csum_start = (void *)ihv3; in br_ip4_multicast_alloc_query()
1055 if (WARN_ON(!csum || !csum_start)) { in br_ip4_multicast_alloc_query()
1060 *csum = ip_compute_csum(csum_start, igmp_hdr_size); in br_ip4_multicast_alloc_query()
1083 void *csum_start = NULL; in br_ip6_multicast_alloc_query()
1180 csum_start = (void *)mldq; in br_ip6_multicast_alloc_query()
1196 csum_start = (void *)mld2q; in br_ip6_multicast_alloc_query()
1218 if (WARN_ON(!csum || !csum_start)) { in br_ip6_multicast_alloc_query()
1225 csum_partial(csum_start, mld_hdr_siz in br_ip6_multicast_alloc_query()
937 void *csum_start = NULL; br_ip4_multicast_alloc_query() local
1085 void *csum_start = NULL; br_ip6_multicast_alloc_query() local
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