diff options
Diffstat (limited to 'VNFs/DPPD-PROX/prox_cksum.h')
| -rw-r--r-- | VNFs/DPPD-PROX/prox_cksum.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/prox_cksum.h b/VNFs/DPPD-PROX/prox_cksum.h new file mode 100644 index 00000000..c11b17a5 --- /dev/null +++ b/VNFs/DPPD-PROX/prox_cksum.h @@ -0,0 +1,68 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +*/ + +#ifndef _PROX_CKSUM_H_ +#define _PROX_CKSUM_H_ + +#include <inttypes.h> +#include <string.h> +#include <stdio.h> +#include <rte_version.h> +#include <rte_ip.h> +#include <rte_udp.h> +#include <rte_tcp.h> +#include <rte_mbuf.h> + +#if RTE_VERSION >= RTE_VERSION_NUM(1,8,0,0) +#define CALC_TX_OL(l2_len, l3_len) ((uint64_t)(l2_len) | (uint64_t)(l3_len) << 7) +#else +#define CALC_TX_OL(l2_len, l3_len) (((uint64_t)(l2_len) << 9) | (uint64_t)(l3_len)) +#endif + +static void prox_ip_cksum_hw(struct rte_mbuf *mbuf, uint16_t l2_len, uint16_t l3_len) +{ +#if RTE_VERSION < RTE_VERSION_NUM(1,8,0,0) + mbuf->pkt.vlan_macip.data = CALC_TX_OL(l2_len, l3_len); +#else + mbuf->tx_offload = CALC_TX_OL(l2_len, l3_len); +#endif + mbuf->ol_flags |= PKT_TX_IP_CKSUM; +} + +void prox_ip_cksum_sw(struct ipv4_hdr *buf); + +static inline void prox_ip_cksum(struct rte_mbuf *mbuf, struct ipv4_hdr *buf, uint16_t l2_len, uint16_t l3_len, int offload) +{ + buf->hdr_checksum = 0; +#ifdef SOFT_CRC + prox_ip_cksum_sw(buf); +#else + if (offload) + prox_ip_cksum_hw(mbuf, l2_len, l3_len); + else { + prox_ip_cksum_sw(buf); + /* TODO: calculate UDP checksum */ + } +#endif +} + +void prox_ip_udp_cksum(struct rte_mbuf *mbuf, struct ipv4_hdr *buf, uint16_t l2_len, uint16_t l3_len, int cksum_offload); + +/* src_ip_addr/dst_ip_addr are in network byte order */ +void prox_udp_cksum_sw(struct udp_hdr *udp, uint16_t len, uint32_t src_ip_addr, uint32_t dst_ip_addr); +void prox_tcp_cksum_sw(struct tcp_hdr *tcp, uint16_t len, uint32_t src_ip_addr, uint32_t dst_ip_addr); + +#endif /* _PROX_CKSUM_H_ */ |