diff options
| author | Matias Elo <matias.elo@nokia.com> | 2018-09-11 12:54:42 +0300 |
|---|---|---|
| committer | Matias Elo <matias.elo@nokia.com> | 2018-09-17 13:30:45 +0300 |
| commit | a316df435a1bd21a058b75eaf3840f78e03adcab (patch) | |
| tree | 384b504c1133007e05e1394972f7edff66a04a2b | |
| parent | 372590151b83e399c11b9e927e671eea41d2f12c (diff) | |
Port cd7c7b28 "linux-gen: packet: support SCTP packet insertion"
Signed-off-by: Matias Elo <matias.elo@nokia.com>
| -rw-r--r-- | platform/linux-dpdk/include/odp_packet_internal.h | 1 | ||||
| -rw-r--r-- | platform/linux-dpdk/odp_packet.c | 51 |
2 files changed, 52 insertions, 0 deletions
diff --git a/platform/linux-dpdk/include/odp_packet_internal.h b/platform/linux-dpdk/include/odp_packet_internal.h index 213e292f9..e9e867b6c 100644 --- a/platform/linux-dpdk/include/odp_packet_internal.h +++ b/platform/linux-dpdk/include/odp_packet_internal.h @@ -265,6 +265,7 @@ int _odp_packet_cmp_data(odp_packet_t pkt, uint32_t offset, int _odp_packet_ipv4_chksum_insert(odp_packet_t pkt); int _odp_packet_tcp_chksum_insert(odp_packet_t pkt); int _odp_packet_udp_chksum_insert(odp_packet_t pkt); +int _odp_packet_sctp_chksum_insert(odp_packet_t pkt); /* We can't enforce tailroom reservation for received packets */ ODP_STATIC_ASSERT(CONFIG_PACKET_TAILROOM == 0, diff --git a/platform/linux-dpdk/odp_packet.c b/platform/linux-dpdk/odp_packet.c index 43860f36b..be01c4e8d 100644 --- a/platform/linux-dpdk/odp_packet.c +++ b/platform/linux-dpdk/odp_packet.c @@ -1245,6 +1245,33 @@ static uint16_t packet_sum_ones_comp16(odp_packet_hdr_t *pkt_hdr, return sum; } +static uint32_t packet_sum_crc32c(odp_packet_hdr_t *pkt_hdr, + uint32_t offset, + uint32_t len, + uint32_t init_val) +{ + uint32_t sum = init_val; + + if (offset + len > odp_packet_len(packet_handle(pkt_hdr))) + return sum; + + while (len > 0) { + uint32_t seglen = 0; /* GCC */ + + void *mapaddr = odp_packet_offset(packet_handle(pkt_hdr), + offset, &seglen, NULL); + + if (seglen > len) + seglen = len; + + sum = odp_hash_crc32c(mapaddr, seglen, sum); + len -= seglen; + offset += seglen; + } + + return sum; +} + /** Parser helper function for Ethernet packets */ static inline uint16_t parse_eth(packet_parser_t *prs, const uint8_t **parseptr, uint32_t *offset, uint32_t frame_len) @@ -1844,6 +1871,30 @@ int _odp_packet_udp_chksum_insert(odp_packet_t pkt) return _odp_packet_tcp_udp_chksum_insert(pkt, _ODP_IPPROTO_UDP); } +/** + * Calculate and fill in SCTP checksum + * + * @param pkt ODP packet + * + * @retval 0 on success + * @retval <0 on failure + */ +int _odp_packet_sctp_chksum_insert(odp_packet_t pkt) +{ + odp_packet_hdr_t *pkt_hdr = packet_hdr(pkt); + uint32_t sum; + uint32_t len = odp_packet_len(pkt); + + if (pkt_hdr->p.l4_offset == ODP_PACKET_OFFSET_INVALID) + return -1; + + sum = 0; + odp_packet_copy_from_mem(pkt, pkt_hdr->p.l4_offset + 8, 4, &sum); + sum = ~packet_sum_crc32c(pkt_hdr, pkt_hdr->p.l4_offset, + len - pkt_hdr->p.l4_offset, ~0); + return odp_packet_copy_from_mem(pkt, pkt_hdr->p.l4_offset + 8, 4, &sum); +} + static int packet_l4_chksum(odp_packet_hdr_t *pkt_hdr, odp_proto_chksums_t chksums, uint32_t l4_part_sum) |