From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dimsol@gmail.com>
Received: from mail-lf1-f47.google.com (mail-lf1-f47.google.com
 [209.85.167.47]) by dpdk.org (Postfix) with ESMTP id 70DA35F54
 for <users@dpdk.org>; Wed,  1 Aug 2018 10:20:21 +0200 (CEST)
Received: by mail-lf1-f47.google.com with SMTP id u202-v6so12697749lff.9
 for <users@dpdk.org>; Wed, 01 Aug 2018 01:20:21 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=mime-version:from:date:message-id:subject:to;
 bh=fZOoFr25CvI+9KvpbBT2qU95tno3R0HYEeRL/7Q426w=;
 b=s7nWtf04gbOl6i77t4BeqCbm7jNGBt6eLEfyI3ZVB1JGNeG05EJ8JST7jpYjKUHQkA
 UYbAfdt4cCuuYJHzAFOo3V3z03nzDN56suOLcRVYrVF7W/6HepbxF+SnOdguReEmIuPt
 VqFZl8mQKbfaCAhay4Kr97yOPiCI1t6pmmUbqvPZgFZVuk6oZamy6OMf7ez9Y4zq8T5w
 IJFSA9WM8e375yYUhVX1tQNU7uJIspfUPvZ2IQp9xxP6O7fODzb2WefvPTpUI20GIEBF
 FsCUrvDhAq25l/DuQmXgdmwSMqG682GdgPUoh7WjDG+unlL+L+ZGpBiCZ7WkhMlFvcgr
 QDEA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
 bh=fZOoFr25CvI+9KvpbBT2qU95tno3R0HYEeRL/7Q426w=;
 b=ds9DXVcjNCRQFxbRU3PCfk4xVKZzyqa8IqC35FlCngJ0odoPHmXEfPKZPaik4QoPOG
 IF+IwAAjKuAT2TskZYEldenrQ5xkVQ2/p+RdjazmHy1wkir9qDA3m/R8O9CsX/21psAL
 e4o0m4imzKq18V4I8qiDNytYBYfrOclFKgO6DWOVSrhKGvDcOgkB/qBERtFXyNpCrfHM
 G0OXkmFjFHPJOiYpLRA7gFeDcXAcmZFvpWYolR9YAiG+118KBDl4jWE7obamXH7yQKu2
 s/7mOL/wo0/KnAazKrzf+U7fvFbkfGvWRSQib81SuhpwD6d8EfPcDfM78ig3utrcN26B
 baOA==
X-Gm-Message-State: AOUpUlGWAHnxFhT0Dp3yygZqUAm8qvR97vtMKES9vtCXRArovH6IZi4V
 f39xxUoBBKMddXhyXfKTfFKSGSYlm/rqaeVO8KgpD/22AxE=
X-Google-Smtp-Source: AAOMgpd3iaNI/A6/Fy+m1mP5OzH3Pv3Vycdj+a6WLMzksDjpszGEdLAVAXaN/C2NEQdOicRpUz+rM9gX8VyKXdUj9JI=
X-Received: by 2002:a19:f70d:: with SMTP id
 z13-v6mr14977707lfe.33.1533111620870; 
 Wed, 01 Aug 2018 01:20:20 -0700 (PDT)
MIME-Version: 1.0
From: Dmitry B <dimsol@gmail.com>
Date: Wed, 1 Aug 2018 11:20:09 +0300
Message-ID: <CA+SXr745dU7gj3hBXsRPHGg-v9KD49wKHfNqb2swwzTxfFUiVQ@mail.gmail.com>
To: users@dpdk.org
Content-Type: text/plain; charset="UTF-8"
X-Content-Filtered-By: Mailman/MimeDel 2.1.15
Subject: [dpdk-users] TX checksum offload for IP fragmented traffic with ENA
	driver
X-BeenThere: users@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK usage discussions <users.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/users>,
 <mailto:users-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/users/>
List-Post: <mailto:users@dpdk.org>
List-Help: <mailto:users-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/users>,
 <mailto:users-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Wed, 01 Aug 2018 08:20:21 -0000

Hi,

I've noticed that TX checksumming offload for IP fragments is not working
in ES2 instance C5 with latest DPDK 17.11 (ENA driver). For not fragmented
IP traffic the offload works well.

The same code is working on ES2 instance M4 with DPDK 16.08 (AFAIR ixgbe_vf
driver).

The code does the following:
    - sets mbuf **ol_flags** to PKT_TX_IPV4 | PKT_TX_IP_CKSUM

  - sets mbuf *l2_len* to ethernet header len

  - sets mbuf *l3_len* to IP header len


Any ideas?

Thanks
Dima

-- 
-----