#define _htons(x) (x)
#endif
-static inline uint16_t
-get_16b_sum(uint16_t *ptr16, uint32_t nr)
-{
- uint32_t sum = 0;
- while (nr > 1)
- {
- sum +=*ptr16;
- nr -= sizeof(uint16_t);
- ptr16++;
- if (sum > UINT16_MAX)
- sum -= UINT16_MAX;
- }
-
- /* If length is in odd bytes */
- if (nr)
- sum += *((uint8_t*)ptr16);
-
- sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
- sum &= 0x0ffff;
- return (uint16_t)sum;
-}
-
-static inline uint16_t
-get_ipv4_cksum(struct ipv4_hdr *ipv4_hdr)
-{
- uint16_t cksum;
- cksum = get_16b_sum((uint16_t*)ipv4_hdr, sizeof(struct ipv4_hdr));
- return (uint16_t)((cksum == 0xffff)?cksum:~cksum);
-}
-
-
-static inline uint16_t
-get_ipv4_psd_sum(struct ipv4_hdr *ip_hdr)
-{
- /* Pseudo Header for IPv4/UDP/TCP checksum */
- union ipv4_psd_header {
- struct {
- uint32_t src_addr; /* IP address of source host. */
- uint32_t dst_addr; /* IP address of destination host(s). */
- uint8_t zero; /* zero. */
- uint8_t proto; /* L4 protocol type. */
- uint16_t len; /* L4 length. */
- } __attribute__((__packed__));
- uint16_t u16_arr[0];
- } psd_hdr;
-
- psd_hdr.src_addr = ip_hdr->src_addr;
- psd_hdr.dst_addr = ip_hdr->dst_addr;
- psd_hdr.zero = 0;
- psd_hdr.proto = ip_hdr->next_proto_id;
- psd_hdr.len = rte_cpu_to_be_16((uint16_t)(rte_be_to_cpu_16(ip_hdr->total_length)
- - sizeof(struct ipv4_hdr)));
- return get_16b_sum(psd_hdr.u16_arr, sizeof(psd_hdr));
-}
-
-static inline uint16_t
-get_ipv6_psd_sum(struct ipv6_hdr *ip_hdr)
-{
- /* Pseudo Header for IPv6/UDP/TCP checksum */
- union ipv6_psd_header {
- struct {
- uint8_t src_addr[16]; /* IP address of source host. */
- uint8_t dst_addr[16]; /* IP address of destination host(s). */
- uint32_t len; /* L4 length. */
- uint32_t proto; /* L4 protocol - top 3 bytes must be zero */
- } __attribute__((__packed__));
-
- uint16_t u16_arr[0]; /* allow use as 16-bit values with safe aliasing */
- } psd_hdr;
-
- rte_memcpy(&psd_hdr.src_addr, ip_hdr->src_addr,
- sizeof(ip_hdr->src_addr) + sizeof(ip_hdr->dst_addr));
- psd_hdr.len = ip_hdr->payload_len;
- psd_hdr.proto = (ip_hdr->proto << 24);
-
- return get_16b_sum(psd_hdr.u16_arr, sizeof(psd_hdr));
-}
-
static uint16_t
get_psd_sum(void *l3_hdr, uint16_t ethertype)
{
if (ethertype == _htons(ETHER_TYPE_IPv4))
- return get_ipv4_psd_sum(l3_hdr);
+ return rte_ipv4_phdr_cksum(l3_hdr);
else /* assume ethertype == ETHER_TYPE_IPv6 */
- return get_ipv6_psd_sum(l3_hdr);
-}
-
-static inline uint16_t
-get_ipv4_udptcp_checksum(struct ipv4_hdr *ipv4_hdr, uint16_t *l4_hdr)
-{
- uint32_t cksum;
- uint32_t l4_len;
-
- l4_len = rte_be_to_cpu_16(ipv4_hdr->total_length) - sizeof(struct ipv4_hdr);
-
- cksum = get_16b_sum(l4_hdr, l4_len);
- cksum += get_ipv4_psd_sum(ipv4_hdr);
-
- cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
- cksum = (~cksum) & 0xffff;
- if (cksum == 0)
- cksum = 0xffff;
- return (uint16_t)cksum;
-}
-
-static inline uint16_t
-get_ipv6_udptcp_checksum(struct ipv6_hdr *ipv6_hdr, uint16_t *l4_hdr)
-{
- uint32_t cksum;
- uint32_t l4_len;
-
- l4_len = rte_be_to_cpu_16(ipv6_hdr->payload_len);
-
- cksum = get_16b_sum(l4_hdr, l4_len);
- cksum += get_ipv6_psd_sum(ipv6_hdr);
-
- cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
- cksum = (~cksum) & 0xffff;
- if (cksum == 0)
- cksum = 0xffff;
-
- return (uint16_t)cksum;
+ return rte_ipv6_phdr_cksum(l3_hdr);
}
static uint16_t
get_udptcp_checksum(void *l3_hdr, void *l4_hdr, uint16_t ethertype)
{
if (ethertype == _htons(ETHER_TYPE_IPv4))
- return get_ipv4_udptcp_checksum(l3_hdr, l4_hdr);
+ return rte_ipv4_udptcp_cksum(l3_hdr, l4_hdr);
else /* assume ethertype == ETHER_TYPE_IPv6 */
- return get_ipv6_udptcp_checksum(l3_hdr, l4_hdr);
+ return rte_ipv6_udptcp_cksum(l3_hdr, l4_hdr);
}
/*
if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_IP_CKSUM)
ol_flags |= PKT_TX_IP_CKSUM;
else
- ipv4_hdr->hdr_checksum = get_ipv4_cksum(ipv4_hdr);
+ ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
ol_flags |= PKT_TX_IPV4;
} else if (ethertype == _htons(ETHER_TYPE_IPv6))
ipv4_hdr->hdr_checksum = 0;
if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) == 0)
- ipv4_hdr->hdr_checksum = get_ipv4_cksum(ipv4_hdr);
+ ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
}
udp_hdr = (struct udp_hdr *)((char *)outer_l3_hdr + outer_l3_len);
if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) == 0) {
if (outer_ethertype == _htons(ETHER_TYPE_IPv4))
udp_hdr->dgram_cksum =
- get_ipv4_udptcp_checksum(ipv4_hdr,
- (uint16_t *)udp_hdr);
+ rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr);
else
udp_hdr->dgram_cksum =
- get_ipv6_udptcp_checksum(ipv6_hdr,
- (uint16_t *)udp_hdr);
+ rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr);
}
}
git.droids-corp.org / dpdk.git / blobdiff