From 7286b2518ec8e4398b512ce95def9166a7af2e4a Mon Sep 17 00:00:00 2001
From: Deepak S <deepak.s@linux.intel.com>
Date: Thu, 13 Jul 2017 21:26:50 -0700
Subject: 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>
---
 VNFs/DPPD-PROX/prox_cksum.h | 68 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 VNFs/DPPD-PROX/prox_cksum.h

(limited to 'VNFs/DPPD-PROX/prox_cksum.h')

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_ */
-- 
cgit 1.2.3-korg