https://bugs.dpdk.org/show_bug.cgi?id=175
Bug ID: 175
Summary: DPDK on Azure using `intel-go/nff-go` fails using
`hv_netvsc` driver
Product: DPDK
Version: 18.11
Hardware: Other
OS: Linux
Status: CONFIRMED
Severity: normal
Priority: Normal
Component: vhost/virtio
Assignee: dev@dpdk.org
Reporter: guesslin1...@gmail.com
Target Milestone: ---
Overview: running DPDK on Azure using `intel-go/nff-go` library fails with
`Requested receive port exceeds number of ports which can be used by DPDK (bind
to DPDK). (3)`
Steps to Reproduce:
1) build binary from
https://gist.github.com/guesslin/76be1139e5e3b8d71e964e194c5d9322
2) run `app -d uio_hv_generic -n <NICName>`
Actual Results:
$ sudo ./app -d uio_hv_generic -n eth2
2018/12/25 06:58:49 Binding PMD driver eth2 to NIC uio_hv_generic
2018/12/25 06:58:49 Initiating nff-go flow system
------------***-------- Initializing DPDK --------***------------
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-1048576kB
EAL: FATAL: Cannot get hugepage information.
EAL: Cannot get hugepage information.
Initiated nff-go flow system
Setting receiver on port 0
panic: Erorr: Requested receive port exceeds number of ports which can be used
by DPDK (bind to DPDK). (3), Msg: start dpdk/nff-go failed
Expected Results:
no error outputs
# result from testpmd
```
glasnostic@glasnostic-router:~$ sudo testpmd -w 0003:00:02.0
--vdev="net_vdev_netvsc0,iface=eth2" -- -i --port-topology=chained
EAL: Detected 4 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Multi-process socket /var/run/.rte_unix
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
clock cycles !
EAL: PCI device 0003:00:02.0 on NUMA socket 0
EAL: probe driver: 15b3:1004 net_mlx4
PMD: net_mlx4: cannot access device, is mlx4_ib loaded?
EAL: Requested device 0003:00:02.0 cannot be used
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: net_failsafe: MAC address is 00:0d:3a:18:3e:11
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=171456, size=2176,
socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
PMD: net_tap_net_vdev_netvsc0_id0: 0xfc3a80: TX configured queues number: 1
PMD: net_tap_net_vdev_netvsc0_id0: 0xfc3a80: RX configured queues number: 1
Port 0: 00:0D:3A:18:3E:11
Checking link statuses...
Done
testpmd> show port info all
********************* Infos for port 0 *********************
MAC address: 00:0D:3A:18:3E:11
Driver name: net_failsafe
Connect to socket: 0
memory allocation on the socket: 0
Link status: up
Link speed: 10000 Mbps
Link duplex: full-duplex
MTU: 1500
Promiscuous mode: enabled
Allmulticast mode: disabled
Maximum number of MAC addresses: 1
Maximum number of MAC addresses of hash filtering: 0
VLAN offload:
strip off
filter off
qinq(extend) off
No flow type is supported.
Minimum size of RX buffer: 0
Maximum configurable length of RX packet: 1522
Current number of RX queues: 1
Max possible RX queues: 16
Max possible number of RXDs per queue: 65535
Min possible number of RXDs per queue: 0
RXDs number alignment: 1
Current number of TX queues: 1
Max possible TX queues: 16
Max possible number of TXDs per queue: 65535
Min possible number of TXDs per queue: 0
TXDs number alignment: 1
testpmd>
```
## directly run testpmd
```
glasnostic@glasnostic-router:~$ sudo testpmd
EAL: Detected 4 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Multi-process socket /var/run/.rte_unix
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
clock cycles !
EAL: PCI device 0003:00:02.0 on NUMA socket 0
EAL: probe driver: 15b3:1004 net_mlx4
PMD: net_mlx4: cannot access device, is mlx4_ib loaded?
EAL: Requested device 0003:00:02.0 cannot be used
PMD: net_failsafe: Initializing Fail-safe PMD for
net_failsafe_net_vdev_netvsc_id0
PMD: net_failsafe: Creating fail-safe device on NUMA socket 0
PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc_id0 as dtap0
PMD: net_failsafe: MAC address is 00:0d:3a:18:3e:11
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=171456, size=2176,
socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Warning! port-topology=paired and odd forward ports number, the last port will
pair with itself.
Configuring Port 0 (socket 0)
PMD: net_tap_net_vdev_netvsc_id0: 0xfc3a80: TX configured queues number: 1
PMD: net_tap_net_vdev_netvsc_id0: 0xfc3a80: RX configured queues number: 1
Port 0: 00:0D:3A:18:3E:11
Checking link statuses...
Done
No commandline core given, start packet forwarding
io packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP
over anonymous pages disabled
Logical Core 1 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
io packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=1
port 0:
CRC stripping enabled
RX queues=1 - RX desc=1024 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX queues=1 - TX desc=1024 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ offloads=0x0
Press enter to exit
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 7 RX-dropped: 0 RX-total: 7
TX-packets: 7 TX-dropped: 0 TX-total: 7
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 7 RX-dropped: 0 RX-total: 7
TX-packets: 7 TX-dropped: 0 TX-total: 7
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
Shutting down port 0...
Stopping ports...
Done
Closing ports...
Done
Bye...
```
## load mlx4_ib
```
glasnostic@glasnostic-router:~$ sudo modprobe mlx4_ib
glasnostic@glasnostic-router:~$ lsmod | grep mlx4_ib
mlx4_ib 176128 0
mlx4_core 294912 2 mlx4_en,mlx4_ib
devlink 53248 3 mlx4_en,mlx4_core,mlx4_ib
ib_core 229376 6 ib_iser,ib_cm,rdma_cm,ib_uverbs,iw_cm,mlx4_ib
glasnostic@glasnostic-router:~$ sudo testpmd
EAL: Detected 4 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Multi-process socket /var/run/.rte_unix
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
clock cycles !
EAL: PCI device 0003:00:02.0 on NUMA socket 0
EAL: probe driver: 15b3:1004 net_mlx4
PMD: net_mlx4: cannot access device, is mlx4_ib loaded?
EAL: Requested device 0003:00:02.0 cannot be used
PMD: net_failsafe: Initializing Fail-safe PMD for
net_failsafe_net_vdev_netvsc_id0
PMD: net_failsafe: Creating fail-safe device on NUMA socket 0
PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc_id0 as dtap0
PMD: net_failsafe: MAC address is 00:0d:3a:18:3e:11
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=171456, size=2176,
socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Warning! port-topology=paired and odd forward ports number, the last port will
pair with itself.
Configuring Port 0 (socket 0)
PMD: net_tap_net_vdev_netvsc_id0: 0xfc3a80: TX configured queues number: 1
PMD: net_tap_net_vdev_netvsc_id0: 0xfc3a80: RX configured queues number: 1
Port 0: 00:0D:3A:18:3E:11
Checking link statuses...
Done
No commandline core given, start packet forwarding
io packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP
over anonymous pages disabled
Logical Core 1 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
io packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=1
port 0:
CRC stripping enabled
RX queues=1 - RX desc=1024 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX queues=1 - TX desc=1024 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ offloads=0x0
Press enter to exit
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 7 RX-dropped: 0 RX-total: 7
TX-packets: 7 TX-dropped: 0 TX-total: 7
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 7 RX-dropped: 0 RX-total: 7
TX-packets: 7 TX-dropped: 0 TX-total: 7
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
Shutting down port 0...
Stopping ports...
Done
Closing ports...
Done
Bye...
```
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