diff options
author | Deepak S <deepak.s@linux.intel.com> | 2017-07-13 21:26:50 -0700 |
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committer | Deepak S <deepak.s@linux.intel.com> | 2017-07-14 04:58:47 -0700 |
commit | 7286b2518ec8e4398b512ce95def9166a7af2e4a (patch) | |
tree | c93ef65d9e73e8893ccecb720152e16aae96a8b6 /VNFs/DPPD-PROX/mbuf_utils.h | |
parent | adcb79da90176b27224eeb1d00aa0e611ef85a9b (diff) |
Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF
JIRA: SAMPLEVNF-55
PROX is a DPDK-based application implementing Telco use-cases such as
a simplified BRAS/BNG, light-weight AFTR... It also allows configuring
finer grained network functions like QoS, Routing, load-balancing...
(We are moving PROX version v039 to sampleVNF
https://01.org/intel-data-plane-performance-demonstrators/prox-overview)
Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Diffstat (limited to 'VNFs/DPPD-PROX/mbuf_utils.h')
-rw-r--r-- | VNFs/DPPD-PROX/mbuf_utils.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/mbuf_utils.h b/VNFs/DPPD-PROX/mbuf_utils.h new file mode 100644 index 00000000..22d57a39 --- /dev/null +++ b/VNFs/DPPD-PROX/mbuf_utils.h @@ -0,0 +1,57 @@ +/* +// 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 _MBUF_UTILS_H_ +#define _MBUF_UTILS_H_ + +#include <string.h> + +#include <rte_ip.h> +#include <rte_version.h> +#include <rte_ether.h> + +static void init_mbuf_seg(struct rte_mbuf *mbuf) +{ +#if RTE_VERSION >= RTE_VERSION_NUM(1,8,0,0) + mbuf->nb_segs = 1; +#else + mbuf->pkt.nb_segs = 1; +#endif + rte_mbuf_refcnt_set(mbuf, 1); +} + +static uint16_t pkt_len_to_wire_size(uint16_t pkt_len) +{ + return (pkt_len < 60? 60 : pkt_len) + ETHER_CRC_LEN + 20; +} + +static uint16_t mbuf_wire_size(const struct rte_mbuf *mbuf) +{ + uint16_t pkt_len = rte_pktmbuf_pkt_len(mbuf); + + return pkt_len_to_wire_size(pkt_len); +} + +static uint16_t mbuf_calc_padlen(const struct rte_mbuf *mbuf, void *pkt, struct ipv4_hdr *ipv4) +{ + uint16_t pkt_len = rte_pktmbuf_pkt_len(mbuf); + uint16_t ip_offset = (uint8_t *)ipv4 - (uint8_t*)pkt; + uint16_t ip_total_len = rte_be_to_cpu_16(ipv4->total_length); + + return pkt_len - ip_total_len - ip_offset; +} + +#endif /* _MBUF_UTILS_H_ */ |