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From: Shyam Shrivastav <shrivastav.shyam@gmail.com>
Date: Tue, 23 Oct 2018 16:23:59 +0530
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To: olivier.matz@6wind.com
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, lidejun1@huawei.com,
 users <users@dpdk.org>, 
 dev@dpdk.org, lichunhe@huawei.com, zhangxufeng4@huawei.com
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Subject: Re: [dpdk-dev] [dpdk-users] IPV4/IPV6 TCP/UDP Pseudo Header
	Checksum APIs
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These fixes/modifications should include the upper level APIs,
rte_ipv4_udptcp_cksum and rte_ipv6_udptcp_cksum.

Even for ipv4 following API is more/really useful if changed to take mbufs

rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr)

I can not use it in present form as it requires single contiguous l4
buffer, instead using rte_raw_cksum_mbuf.