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From: Eyal Leshem <Eyal.Leshem@imperva.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: [dpdk-users] Checksum offloading on gre outer-ip in dpdk-16.11
Date: Wed, 22 Feb 2017 07:16:57 +0000	[thread overview]
Message-ID: <DM5PR06MB2842DD91DF5A38E024E27EB1E4500@DM5PR06MB2842.namprd06.prod.outlook.com> (raw)

Hi all,

I use checksum-offloading for calculating the checksum of packets that i change/create inside my app.
I use it for regular packets and for gre packets (on gre - the checksum is calculated on the outer-header).

On dpdk-16.07 everything works fine , But when i try to use that with DPDK-16.11 it seems that the offloading on GRE packets does not work (while on the regular packets it still works fine).

In dpdk-16.07 I use the following flags on my mbuf to mark to the NIC that the packets need checksum calculation (m is the "struct rte_mbuf"):
 "m->ol_flags |=  PKT_TX_OUTER_IPV4|PKT_TX_OUTER_IP_CKSUM;"

On 16.11 I tried to add also the PKT_TX_TUNNEL_GRE (As i saw that addition in "csumonly.c" in the 16.11 version in the "pmd-test" app) - but that also didn't help.

My NIC is : "Intel Corporation Ethernet Controller X710 for 10Gbe backplane"
And i run my app in Ubuntu-14.0.4.

Any Ideas?

Thanks in advance -
Eyal

             reply	other threads:[~2017-02-22  7:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-22  7:16 Eyal Leshem [this message]
2017-02-22  7:18 Eyal Leshem
2017-02-22 13:27 ` Eyal Leshem

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