From: lidejun <lidejun1@huawei.com>
To: Shyam Shrivastav <shrivastav.shyam@gmail.com>
Cc: users <users@dpdk.org>, "dev@dpdk.org" <dev@dpdk.org>,
"Lichunhe (Cloud Networking)" <lichunhe@huawei.com>,
"zhangxufeng (C)" <zhangxufeng4@huawei.com>
Subject: [dpdk-dev] 答复: IPV4/IPV6 TCP/UDP Pseudo Header Checksum APIs
Date: Sat, 20 Oct 2018 06:14:01 +0000 [thread overview]
Message-ID: <A69E93D1CF6DFA4BA33FB8D8DAFFFD19035A0973@dggemm512-mbx.china.huawei.com> (raw)
In-Reply-To: <CAGSp03ncwhn4ZxHtqnMoZEVJYQjc27bcWwVBvhwstpzyJWa67w@mail.gmail.com>
I mean DPDK APIs do not exclude ipv4 options or ipv6 extension headers, it is bug?
发件人: Shyam Shrivastav [mailto:shrivastav.shyam@gmail.com]
发送时间: 2018年10月20日 13:23
收件人: lidejun <lidejun1@huawei.com>
抄送: users <users@dpdk.org>; dev@dpdk.org; Lichunhe (Cloud Networking) <lichunhe@huawei.com>; Wangliefeng <wangliefeng@huawei.com>
主题: Re: [dpdk-dev] IPV4/IPV6 TCP/UDP Pseudo Header Checksum APIs
Realized my answer is confusing, I meant to say that code is correct as pseudo ipv4/ipv6 headers for the purpose of checksum calculations doesn't include options or extension headers, see udp wiki or corresponding rfcs
https://en.wikipedia.org/wiki/User_Datagram_Protocol
On Sat, Oct 20, 2018 at 10:42 AM Shyam Shrivastav <shrivastav.shyam@gmail.com<mailto:shrivastav.shyam@gmail.com>> wrote:
that is correct , pseudo header doesn't include ipv4 options or ipv6 extension headers ..
On Sat, Oct 20, 2018 at 9:02 AM lidejun <lidejun1@huawei.com<mailto:lidejun1@huawei.com>> wrote:
Has anybody used the following two APIs calculating ipv4&ipv6 tcp/udp pseudo header checksum？
1. rte_ipv4_phdr_cksum
2. rte_ipv6_phdr_cksum
The ipv4 version does not exclude ip options and ipv6 version does not exclude extersion headers.
next prev parent reply other threads:[~2018-10-20 6:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-20 3:32 [dpdk-dev] " lidejun
2018-10-20 5:12 ` Shyam Shrivastav
2018-10-20 5:22 ` Shyam Shrivastav
2018-10-20 6:14 ` lidejun [this message]
2018-10-20 6:30 ` Shyam Shrivastav
2018-10-22 8:03 ` [dpdk-dev] [dpdk-users] " Ferruh Yigit
2018-10-23 9:01 ` Olivier Matz
2018-10-23 10:53 ` Shyam Shrivastav
2018-11-28 15:07 ` Hyong Youb Kim
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