From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <fmontorsi@empirix.com>
Received: from bilemail1.empirix.com (bilemail1.empirix.com [208.67.76.245])
by dpdk.org (Postfix) with ESMTP id 3E4EB5A08
for <dev@dpdk.org>; Wed, 25 Nov 2015 11:32:53 +0100 (CET)
Received: from BILEMAIL1.empirix.com (10.17.8.30) by bilemail1.empirix.com
(10.17.8.30) with Microsoft SMTP Server (TLS) id 15.0.775.38; Wed, 25 Nov
2015 05:32:33 -0500
Received: from BILEMAIL1.empirix.com ([fe80::f9e0:9293:2523:f021]) by
bilemail1.empirix.com ([fe80::f9e0:9293:2523:f021%22]) with mapi id
15.00.0775.031; Wed, 25 Nov 2015 05:32:33 -0500
From: "Montorsi, Francesco" <fmontorsi@empirix.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: rte_eth_tx_queue_setup() failing (error -22) when setting up
tx queues on a VMXNET3 port...
Thread-Index: AdEnbJdKvHAYo+2qT3+B3OnGmqxA3w==
Date: Wed, 25 Nov 2015 10:32:33 +0000
Message-ID: <c47dff4f71df4614970fc2a23945d807@bilemail1.empirix.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [10.12.50.69]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Subject: [dpdk-dev] rte_eth_tx_queue_setup() failing (error -22) when
setting up tx queues on a VMXNET3 port...
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
<mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
<mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Wed, 25 Nov 2015 10:32:53 -0000
Hi all,
I have a server running VMWare ESXi 5.5.0 and VMWare vCenter 5.5.0. On such=
server I created a VM with two VMXNET3 NIC cards (one for management, the =
other one should be used with DPDK to enable fast-RX of packets coming from=
other VMs / bare-metal NICs).
Inside the VM I have successfully created 2MB hugepages, loaded igb_uio dri=
ver and binded the 2nd VMXNET3 NIC to igb_uio driver:
---------------------------------------------------------------------------=
-------------------------------------------
$ ./dpdk_nic_bind.py --status
Network devices using DPDK-compatible driver
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=3Digb_uio unused=3Dvmxnet3
Network devices using kernel driver
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
0000:03:00.0 'VMXNET3 Ethernet Controller' if=3Deth0 drv=3Dvmxnet3 unused=
=3Digb_uio *Active*
Other network devices
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
<none>
---------------------------------------------------------------------------=
-------------------------------------------
However when I start my DPDK-application I get the following error during T=
X queue initialization:
ERR rte_eth_tx_queue_setup: err=3D-22, port=3D0: Unknown error -22
This is the code that I'm using:
...
rte_eth_dev_info_get(m_portid, m_dev_info);
// proceed with configuration
struct rte_eth_conf port_conf;
memset(&port_conf, 0, sizeof(port_conf));
port_conf.rxmode.mq_mode =3D ETH_MQ_RX_RSS;
/** The multi-queue packet distribution mode to be used, e.g. RSS.; this =
is important to use multiple RX queues per port ID */
port_conf.rxmode.max_rx_pkt_len =3D ETHER_MAX_LEN;
port_conf.rxmode.hw_strip_crc =3D 1; /**< enable CRC stripping by hardwa=
re */
port_conf.rxmode.jumbo_frame =3D 1; /**< Jumbo Frame Support enabled */
//port_conf.rxmode.enable_lro =3D 1; /**< Enable LRO */ // NOT SUPPOR=
TED ON TESTED HW
port_conf.rx_adv_conf.rss_conf.rss_hf =3D ETH_RSS_IP;
port_conf.txmode.mq_mode =3D ETH_MQ_TX_NONE;
m_num_queues =3D MIN(64, m_dev_info->max_rx_queues);
m_num_queues =3D MIN(128, m_num_queues);
ret =3D rte_eth_dev_configure(m_portid, m_num_queues, 1 /* number of tx qu=
eues */, &port_conf);
if (ret < 0)
{
HMLogError("HwEmulDPDKPort::init() rte_eth_dev_configure: err=3D%d, port=
=3D%u: %s", ret, m_portid, rte_strerror(ret));
return false;
}
// init one TX queue: even if we never ever TX packets, at least 1 queue i=
s needed!
---> ret =3D rte_eth_tx_queue_setup(m_portid, 0 /* queue ID */, 64 /* num d=
escriptors */, rte_eth_dev_socket_id(m_portid), NULL);
if (ret < 0)
{
// retry with just 1 descriptor
---> ret =3D rte_eth_tx_queue_setup(m_portid, 0 /* queue ID */, 1 /* num d=
escriptors */, rte_eth_dev_socket_id(m_portid), NULL);
if (ret < 0)
{
HMLogError("HwEmulDPDKPort::init() rte_eth_tx_queue_setup: err=3D%d, por=
t=3D%u: %s", ret, m_portid, rte_strerror(ret));
return false;
}
}
Basically since I want to only receive packets (no TX) I'm not really inter=
ested in TX queues / num of TX descriptors... However I have troubles decry=
pting this -22 error code... any hint?
Thanks a lot,
Francesco Montorsi