From: Stephen Hemminger <sthemmin@microsoft.com>
To: "hfli@netitest.com" <hfli@netitest.com>,
"matan@mellanox.com" <matan@mellanox.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>
Cc: "users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] DPDK procedure start Error: "PMD: Could not add multiq qdisc (17): File exists"
Date: Mon, 7 Jan 2019 21:26:40 +0000 [thread overview]
Message-ID: <SN6PR2101MB0912A6CF4D0D65B4DBE2E58ACC890@SN6PR2101MB0912.namprd21.prod.outlook.com> (raw)
In-Reply-To: <001401d4a3ee$279bc190$76d344b0$@netitest.com>
Which Linux distribution are you using? Recently Ubuntu changed to put the multiq queue discipline in linux-modules-extra package which is not normally installed. They changed the packaging and it broke TAP DPDK usage.
________________________________
From: hfli@netitest.com <hfli@netitest.com>
Sent: Thursday, January 3, 2019 9:27 PM
To: matan@mellanox.com; Stephen Hemminger; KY Srinivasan; Haiyang Zhang
Cc: users@dpdk.org
Subject: 答复: DPDK procedure start Error: "PMD: Could not add multiq qdisc (17): File exists"
Hi All,
I just tried DPDK 18.11 and test_pmd, it output same error, any help for this?.
Run Server Process
# ./build/app/testpmd -l 2,3 -n3 --vdev="net_vdev_netvsc1,iface=port2" --file-prefix server -- --port-topology=chained -i --nb-cores=1 --nb-ports=1 --total-num-mbufs=2048
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/server/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !
rte_pmd_tap_probe(): Initializing pmd_tap for net_tap_vsc0 as dtap0
Interactive-mode selected
Warning: NUMA should be configured manually by using --port-numa-config and --ring-numa-config parameters along with --numa.
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=2048, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
Port 0: 00:15:5D:10:85:17
Checking link statuses...
Done
testpmd>
Run Client process
# ./build/app/testpmd -l 0,1 -n3 --vdev="net_vdev_netvsc0,iface=port1" --file-prefix client -- --port-topology=chained -i --nb-cores=1 --nb-ports=1 --total-num-mbufs=2048
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/client/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !
rte_pmd_tap_probe(): Initializing pmd_tap for net_tap_vsc0 as dtap0
qdisc_create_multiq(): Could not add multiq qdisc (17): File exists
eth_dev_tap_create(): dtap0: failed to create multiq qdisc.
eth_dev_tap_create(): Disabling rte flow support: File exists(17)
eth_dev_tap_create(): Remote feature requires flow support.
eth_dev_tap_create(): TAP Unable to initialize net_tap_vsc0
EAL: Driver cannot attach the device (net_tap_vsc0)
EAL: Failed to attach device on primary process
net_failsafe: sub_device 1 probe failed (File exists)
rte_pmd_tap_probe(): Initializing pmd_tap for net_tap_vsc0 as dtap1
Interactive-mode selected
Warning: NUMA should be configured manually by using --port-numa-config and --ring-numa-config parameters along with --numa.
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=2048, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Cannot set owner to port 1 already owned by Fail-safe_0000000000000001
Configuring Port 0 (socket 0)
Port 0: 06:64:AA:64:57:9D
Checking link statuses...
Done
testpmd> Cannot set owner to port 1 already owned by Fail-safe_0000000000000001
Cannot set owner to port 1 already owned by Fail-safe_0000000000000001
Cannot set owner to port 1 already owned by Fail-safe_0000000000000001
# ethtool -i port1
driver: hv_netvsc
version:
firmware-version: N/A
expansion-rom-version:
bus-info:
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
# ethtool -i port2
driver: hv_netvsc
version:
firmware-version: N/A
expansion-rom-version:
bus-info:
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
#
# uname -a
Linux localhost.localdomain 4.20.0-1.el7.elrepo.x86_64 #1 SMP Sun Dec 23 20:11:51 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
Thanks and Regards,
Jack
发件人: hfli@netitest.com <hfli@netitest.com>
发送时间: 2019年1月4日 11:47
收件人: 'matan@mellanox.com' <matan@mellanox.com>
抄送: 'users@dpdk.org' <users@dpdk.org>; 'azuredpdk@microsoft.com' <azuredpdk@microsoft.com>
主题: DPDK procedure start Error: "PMD: Could not add multiq qdisc (17): File exists"
Hi Matan,
Could you help us for below error?
PMD: Could not add multiq qdisc (17): File exists
PMD: dtap0: failed to create multiq qdisc.
PMD: Disabling rte flow support: File exists(17)
PMD: Remote feature requires flow support.
PMD: TAP Unable to initialize net_tap_net_vdev_netvsc0_id0
EAL: Driver cannot attach the device (net_tap_net_vdev_netvsc0_id0)
PMD: net_failsafe: sub_device 1 probe failed (No such file or directory)
PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9
vdev_probe(): failed to initialize : PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9
device
EAL: Bus (vdev) probe failed.
Our DPDK procedure want to deploy on Hyper-v and Azure Cloud, so we try it on Hyper-v firstly. It need start 2 processes, a client process use port1, a server process use port2, port1 and port2 in one internal subnet on a virtual switch,
But only one process can be started successfully, the other said error, “PMD: Could not add multiq qdisc (17): File exists”, our procedure is running well on Vmware/KVM/ASW, is there any help for this?
Below is our env:
OS: Windows 10 and Hyper-V on it
Guest OS: CentOS7.6(Upgrade kernel to 4.20.0)
DPDK version: 18.02.2
# uname -a
Linux localhost.localdomain 4.20.0-1.el7.elrepo.x86_64 #1 SMP Sun Dec 23 20:11:51 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
root:/# ifconfig -a
bond0: flags=5122<BROADCAST,MASTER,MULTICAST> mtu 1500
ether 46:28:ec:c8:7a:74 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 75 bytes 6284 (6.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 75 bytes 6284 (6.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
mgmt1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.16.130 netmask 255.255.255.0 broadcast 192.168.16.255
inet6 fe80::78e3:1af8:3333:ff45 prefixlen 64 scopeid 0x20<link>
ether 00:15:5d:10:85:14 txqueuelen 1000 (Ethernet)
RX packets 5494 bytes 706042 (689.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2163 bytes 438205 (427.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
mgmt2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:15:5d:10:85:15 txqueuelen 1000 (Ethernet)
RX packets 3131 bytes 518243 (506.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
port1: flags=4675<UP,BROADCAST,RUNNING,ALLMULTI,MULTICAST> mtu 1500
ether 00:15:5d:10:85:16 txqueuelen 1000 (Ethernet)
RX packets 1707 bytes 163778 (159.9 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 693 bytes 70666 (69.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
port2: flags=4675<UP,BROADCAST,RUNNING,ALLMULTI,MULTICAST> mtu 1500
ether 00:15:5d:10:85:17 txqueuelen 1000 (Ethernet)
RX packets 900 bytes 112256 (109.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1504 bytes 122428 (119.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root:/# ethtool -i port1
driver: hv_netvsc
version:
firmware-version: N/A
expansion-rom-version:
bus-info:
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
root:/# ethtool -i port2
driver: hv_netvsc
version:
firmware-version: N/A
expansion-rom-version:
bus-info:
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
root:/#
Start server process successfully
# ./VM_DPDK -l 3 -n 4 --vdev="net_vdev_netvsc1,iface=port2" --socket-mem 1500 --file-prefix server
EAL: Detected 4 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Multi-process socket /var/log/.server_unix
EAL: Probing VFIO support...
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !
PMD: net_failsafe: Initializing Fail-safe PMD for net_failsafe_net_vdev_netvsc1_id0
PMD: net_failsafe: Creating fail-safe device on NUMA socket 0
PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc1_id0 as dtap0
PMD: net_failsafe: MAC address is 00:15:5d:10:85:17
Concorrently start client process failed
# ./VM_DPDK -l 2 -n 4 --vdev="net_vdev_netvsc0,iface=port1" --socket-mem 1500 --file-prefix client
EAL: Detected 4 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Multi-process socket /var/log/.client_unix
EAL: Probing VFIO support...
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !
PMD: net_failsafe: Initializing Fail-safe PMD for net_failsafe_net_vdev_netvsc0_id0
PMD: net_failsafe: Creating fail-safe device on NUMA socket 0
PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc0_id0 as dtap0
PMD: Could not add multiq qdisc (17): File exists
PMD: dtap0: failed to create multiq qdisc.
PMD: Disabling rte flow support: File exists(17)
PMD: Remote feature requires flow support.
PMD: TAP Unable to initialize net_tap_net_vdev_netvsc0_id0
EAL: Driver cannot attach the device (net_tap_net_vdev_netvsc0_id0)
PMD: net_failsafe: sub_device 1 probe failed (No such file or directory)
PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9
vdev_probe(): failed to initialize : PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9
device
EAL: Bus (vdev) probe failed.
Thanks and Regards,
Jack
next prev parent reply other threads:[~2019-01-07 21:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-04 5:27 [dpdk-users] 答复: " hfli
2019-01-07 21:26 ` Stephen Hemminger [this message]
2019-01-08 1:36 ` hfli
2019-01-08 19:32 ` [dpdk-users] " Stephen Hemminger
2019-01-08 19:35 ` Stephen Hemminger
2019-01-09 0:38 ` [dpdk-users] 答复: " hfli
2019-01-09 19:55 ` [dpdk-users] " Stephen Hemminger
-- strict thread matches above, loose matches on Subject: below --
2019-01-04 3:46 hfli
2018-12-30 12:18 hfli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=SN6PR2101MB0912A6CF4D0D65B4DBE2E58ACC890@SN6PR2101MB0912.namprd21.prod.outlook.com \
--to=sthemmin@microsoft.com \
--cc=haiyangz@microsoft.com \
--cc=hfli@netitest.com \
--cc=kys@microsoft.com \
--cc=matan@mellanox.com \
--cc=users@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).