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Wed, 5 May 2021 11:54:23 +0000 From: Anand Gupta To: "Wiles, Keith" CC: "users@dpdk.org" Thread-Topic: [dpdk-users] DPDK-PKTGEN crashes when using Jumbo frame in AWS EC2 Thread-Index: AdcA/F6NpWsNDNjzSAyrOD36CxL9vgARHkwAEBhEd9A= Date: Wed, 5 May 2021 11:54:23 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=keysight.com; x-originating-ip: [121.244.60.107] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4b86be93-aca3-4195-8991-08d90fbc86ce x-ms-traffictypediagnostic: MN2PR17MB3167: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: keysight.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR17MB3199.namprd17.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4b86be93-aca3-4195-8991-08d90fbc86ce X-MS-Exchange-CrossTenant-originalarrivaltime: 05 May 2021 11:54:23.8007 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 63545f27-3232-4d74-a44d-cdd457063402 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: A0F9haNU1qeQNQONEXIR6H23Z/lHWzhr1ZjGxjkrjCTu1Wyi+iunDhVOiRzXub4lo2sHLFRnD0HM3izqmveh/0EOYgDi6qEv9ht4CWycj1o= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR17MB3167 X-Proofpoint-GUID: pPue56vLkuynb9o3fzFJ4QLg7pRr5vhv X-Proofpoint-ORIG-GUID: pPue56vLkuynb9o3fzFJ4QLg7pRr5vhv X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.761 definitions=2021-05-05_06:2021-05-05, 2021-05-05 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 malwarescore=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 bulkscore=0 priorityscore=1501 mlxscore=0 phishscore=0 spamscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2105050089 Subject: Re: [dpdk-users] DPDK-PKTGEN crashes when using Jumbo frame in AWS EC2 X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Sender: "users" Hi Keith, I found the root cause for the problem " requested Tx offloads 0x8000 doesn= 't match Tx offloads capabilities 0xe" in EC2 instances. The DPDK ENA driver does not have "DEV_TX_OFFLOAD_MULTI_SEGS" TX offload ca= pability in TX offloads capabilities and in Pktgen when Jumbo frame is enab= led, the TX-offload adds " DEV_TX_OFFLOAD_MULTI_SEGS". =20 Is "DEV_TX_OFFLOAD_MULTI_SEGS" necessary when the Jumbo frame is enable in = the Pktgen or can we first check if the Device supports the offload or not = and then add " DEV_TX_OFFLOAD_MULTI_SEGS"? =20 What is the mechanism of "DEV_TX_OFFLOAD_MULTI_SEGS" when enabling Jumbo fr= ames? Thanks, Anand -----Original Message----- From: Wiles, Keith =20 Sent: Friday, February 12, 2021 7:26 PM To: Anand Gupta Cc: users@dpdk.org Subject: Re: [dpdk-users] DPDK-PKTGEN crashes when using Jumbo frame in AWS= EC2 CAUTION: This message originates from an external sender. > On Feb 11, 2021, at 11:03 PM, Anand Gupta wrot= e: > > Hello All, > > I'm trying to run DPDK-PKTGEN in AWS EC2 instances and able to send packe= ts up to 1.5 KB packets. > If we use Jumbo frame packets then we are getting error "requested Tx off= loads 0x8000 doesn't match Tx offloads capabilities 0xe". > > Setup: > Ubuntu: 16.04 > Driver: ENA 2.0.3K > DPDK: 18.11.1 > PKTGEN: 3.7.1 Please update to the latest Pktgen 21.02.0 with the latest DPDK version. If= you can not upgrade then please look at the latest version as some work fo= r jumbo frames was done a few months ago. > > Can anyone help me with this issue ? Is anything I'm missing ? > > Thanks, > Anand