From: "Morten Brørup" <mb@smartsharesystems.com>
To: "Kaiwen Deng" <kaiwenx.deng@intel.com>, <dev@dpdk.org>
Cc: <stable@dpdk.org>, <qiming.yang@intel.com>,
<yidingx.zhou@intel.com>,
"Aman Singh" <aman.deep.singh@intel.com>,
"Ferruh Yigit" <ferruh.yigit@intel.com>,
"Xiaoyun Li" <xiaoyun.li@intel.com>
Subject: RE: [PATCH v5] lib/net: fix tcp/udp cksum with padding data
Date: Thu, 14 Dec 2023 12:20:18 +0100 [thread overview]
Message-ID: <98CBD80474FA8B44BF855DF32C47DC35E9F0C7@smartserver.smartshare.dk> (raw)
In-Reply-To: <20231214092259.2126634-1-kaiwenx.deng@intel.com>
> From: Kaiwen Deng [mailto:kaiwenx.deng@intel.com]
> Sent: Thursday, 14 December 2023 10.23
>
> IEEE 802 packets may have a minimum size limit. The data fields
> should be padded when necessary. In some cases, the padding data
> is not zero.
>
> In 'rte_ipv4_udptcp_cksum_mbuf()', as payload length
> "mbuf->pkt_len - l4_off" is used, which includes padding and if
> padding is not zero it will end up producing wrong checksum.
>
> This patch will use IP header to get the payload size to calculate
> tcp/udp checksum.
>
> Fixes: d178f693bbfe ("net: add UDP/TCP checksum in mbuf segments")
> Cc: stable@dpdk.org
>
> Signed-off-by: Kaiwen Deng <kaiwenx.deng@intel.com>
> ---
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
next prev parent reply other threads:[~2023-12-14 11:20 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 8:28 [PATCH] app/test-pmd: fix L4 checksum " Kaiwen Deng
2023-11-02 19:20 ` Ferruh Yigit
2023-11-03 2:49 ` Deng, KaiwenX
2023-11-03 4:03 ` Ferruh Yigit
2023-11-14 2:19 ` Deng, KaiwenX
2023-11-14 19:09 ` Ferruh Yigit
2023-11-16 7:02 ` Deng, KaiwenX
2023-11-16 22:58 ` Stephen Hemminger
2023-11-17 0:50 ` Ferruh Yigit
2023-11-17 3:28 ` Stephen Hemminger
2023-11-17 9:29 ` Ferruh Yigit
2023-11-17 12:11 ` Morten Brørup
2023-11-17 16:23 ` Stephen Hemminger
2023-11-17 16:22 ` Stephen Hemminger
2023-11-20 10:47 ` Ferruh Yigit
2023-11-20 9:21 ` Deng, KaiwenX
2023-11-20 10:46 ` Ferruh Yigit
2023-11-22 3:04 ` Deng, KaiwenX
2023-11-17 1:13 ` Ferruh Yigit
2023-11-20 9:52 ` Deng, KaiwenX
2023-12-07 8:53 ` [PATCH v2] app/test-pmd: fix tcp/udp cksum " Kaiwen Deng
2023-12-07 14:35 ` Ferruh Yigit
2023-12-12 2:16 ` [PATCH v3] lib/net: " Kaiwen Deng
2023-12-12 8:10 ` Morten Brørup
2023-12-13 4:37 ` [PATCH v4] " Kaiwen Deng
2023-12-13 7:36 ` Morten Brørup
2023-12-14 9:22 ` [PATCH v5] " Kaiwen Deng
2023-12-14 11:20 ` Morten Brørup [this message]
2024-02-19 1:10 ` Thomas Monjalon
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