And I add a log in the code, found thath the current uid is not 0(root),
if there is some other config I missed ?
/* save fd if in primary process */
dev->intr_handle.fd = open(devname, O_RDWR);
if (dev->intr_handle.fd < 0) {
RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
devname, strerror(errno));
RTE_LOG(ERR, EAL, "Current userid: %d\n", getuid);
goto error;
}
#systemctl restart openvswitch
2017-11-23T07:57:13.476Z|00071|dpdk|ERR|EAL: Cannot open /dev/uio0: Permission
denied
2017-11-23T07:57:13.476Z|00072|dpdk|ERR|EAL: Current userid: -534781824
在 2017-11-22 21:05:05，"王嵘" <[email protected]> 写道：
hi,
That's because I'm using the Broadcom Nic for performing-test and found the
uio problem("Cannot open /dev/uio0: Permission denied").
and I now RECHECKED the problem in my own VM environment。
Pity that, the uio Permission denied problem still alway exists.(the ovs2.7 is
ok).
and the ovs is 2.8.1, dpdk-1705.2
[root@localhost test]# rpm -qa | grep openvswitch
openvswitch-2.8.1-1.el7.centos.x86_64
openvswitch-debuginfo-2.8.1-1.el7.centos.x86_64
[root@localhost test]# rpm -qa | grep dpdk
dpdk-17.05.2-1.x86_64
dpdk-devel-17.05.2-1.x86_64
dpdk-debuginfo-17.05.2-1.x86_64
2017-11-22T11:37:24.909Z|00061|dpdk|WARN|EAL: rte_pci_probe_one execing.
2017-11-22T11:37:24.909Z|00062|dpdk|INFO|EAL: PCI device 0000:00:09.0 on NUMA
socket -1
2017-11-22T11:37:24.909Z|00063|dpdk|INFO|EAL: probe driver: 8086:100e
net_e1000_em
2017-11-22T11:37:24.909Z|00064|dpdk|ERR|EAL: Cannot open /dev/uio0: Permission
denied
2017-11-22T11:37:24.909Z|00065|dpdk|WARN|EAL: Requested device 0000:00:09.0
cannot be used
2017-11-22T11:37:24.909Z|00066|dpdk|ERR|EAL: Driver cannot attach the device
(0000:00:09.0)
[root@localhost test]# dpdk-devbind --status
Network devices using DPDK-compatible driver
============================================
0000:00:09.0 '82540EM Gigabit Ethernet Controller 100e' drv=igb_uio unused=
0000:00:0a.0 '82540EM Gigabit Ethernet Controller 100e' drv=igb_uio unused=
Network devices using kernel driver
===================================
0000:00:03.0 'Virtio network device 1000' if=eth0 drv=virtio-pci unused=igb_uio
*Active*
[root@localhost test]# lspci | egrep -i --color 'network|ethernet'
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
00:09.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 03)
00:0a.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 03)
[root@localhost test]# lshw -c network -businfo
Bus info Device Class Description
========================================================
pci@0000:00:03.0 network Virtio network device
virtio@0 eth0 network Ethernet interface
pci@0000:00:09.0 network 82540EM Gigabit Ethernet Controller
pci@0000:00:0a.0 network 82540EM Gigabit Ethernet Controller
br0 network Ethernet interface
ovs-system network Ethernet interface
virbr0-nic network Ethernet interface
virbr0 network Ethernet interface
在 2017-11-16 02:21:54，"Shivaram Mysore" <[email protected]> 写道：
Glad to hear that you solved the problem.
What you have are Intel NIC - 82540em. The driver igb_uio should work for this
- which is what you have. I am confused as to why you said that you were using
Broadcom Nextreme card
Anyways, it is good to hear that you were able to rectify the issue.
On Wed, Nov 15, 2017 at 4:40 AM, 王嵘 <[email protected]> wrote:
hi, I solved the NIC bind problem.
I checked the log found that
netdev_dpdk|ERR|Interface dpdk-eth2(rxq:1 txq:3) configure error: Invalid
argument
so, I changed the rxq of the NIC to 3 by "options:n_rxq=3", and it works. ^^
I tested the ovs2.8-dpdk in another VM of Centos7, but the "Permission denied"
problem still exists.
Here is the results of the commands you asked to execute,
[root@localhost ~]# lshw -c network -businfo
Bus info Device Class Description
========================================================
pci@0000:00:03.0 network Virtio network device
virtio@0 eth0 network Ethernet interface
pci@0000:00:09.0 network 82540EM Gigabit Ethernet Controller
pci@0000:00:0a.0 ens10 network 82540EM Gigabit Ethernet Controller
br0 network Ethernet interface
ovs-netdev network Ethernet interface
virbr0-nic network Ethernet interface
virbr0 network Ethernet interface
[root@localhost ~]# lspci | egrep -i --color 'network|ethernet'
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
00:09.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 03)
00:0a.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 03)
[root@localhost ~]# lsmod | grep uio
igb_uio 13224 1
uio 19259 3 igb_uio
[root@localhost test]# lsmod | grep uio
igb_uio 13224 0
uio 19259 1 igb_uio
在 2017-11-15 04:29:34，"Shivaram Mysore" <[email protected]> 写道：
What is the output of the following commands:
lshw -c network -businfo
lspci | egrep -i --color 'network|ethernet'
lsmod | grep uio
/sbin/dpdk-devbind --status
On Mon, Nov 13, 2017 at 9:29 PM, 王嵘 <[email protected]> wrote:
I just want to use ovs-2.8 for userspace connection-track, and I choose the
latest LST DPDK 1705.
But, you mean theres is something like broadcom-uio.ko when using broadcom NIC?
I just have changed the config/common_base:
CONFIG_RTE_LIBRTE_BNX2X_PMD=y
CONFIG_RTE_LIBRTE_BNX2X_DEBUG=y
CONFIG_RTE_LIBRTE_BNX2X_DEBUG_INIT=y
CONFIG_RTE_LIBRTE_BNX2X_DEBUG_RX=y
CONFIG_RTE_LIBRTE_BNX2X_DEBUG_TX=y
CONFIG_RTE_LIBRTE_BNX2X_MF_SUPPORT=y
CONFIG_RTE_LIBRTE_BNX2X_DEBUG_PERIODIC=y
在 2017-11-14 12:49:44，"Shivaram Mysore" <[email protected]> 写道：
Is there a specific reason as to why you would want to use this version of
DPDK? I have never had to check permission.
Also, igb is mainly for Intel NICs. You are using a Broadcom NIC -
http://dpdk.org/doc/guides/nics/bnxt.html for driver info. I think what you
have is a misconfiguration.
You may want to check out the scripts here
https://github.com/shivarammysore/faucetsdn-intel/tree/master/src/ubuntu/zesty/ovs_281
- to setup and configure DPDK. I have only used Intel NICs.
Cheers!
On Mon, Nov 13, 2017 at 6:50 PM, 王嵘 <[email protected]> wrote:
hi, I'm using ovs2.8 with dpdk-17052, and the 'NetXtreme II BCM57810 10 Gigabit
Ethernet 168e'.
There comes the error, while I try to bind the NIC using igb_uio.
2017-11-14T02:25:18.400Z|00362|dpdk|INFO|EAL: probe driver: 14e4:168e
net_bnx2x
2017-11-14T02:25:18.400Z|00363|dpdk|ERR|EAL: Cannot open /dev/uio0: Permission
denied
Then I chmod the file, like "chmod 777 /dev/uio0",(but I dont think this is
right way.)
but there comes other files with the same error, and I also chmod them.
And I do the actions:
chmod 777 /sys/bus/pci/devices/0000:20:00.1/*
chmod 777 /sys/class/uio/uio0/device/config
Then , restart the ovs-dpdk,
But, there comes the following error:
2017-11-14T02:40:05.436Z|8384580|dpdk|ERR|PMD: pci_read(): Can't read from PCI
config space
2017-11-14T02:40:05.436Z|8384581|dpdk|ERR|PMD: pci_read(): Can't read from PCI
config space
2017-11-14T02:40:05.436Z|8384582|dpdk|ERR|PMD: pci_read(): Can't read from PCI
config space
2017-11-14T02:40:05.436Z|8384583|dpdk|ERR|PMD: pci_read(): Can't read from PCI
config space
2017-11-14T02:40:05.436Z|8384584|dpdk|INFO|PMD: bnx2x_pci_get_caps(): Failed to
allocate memory
2017-11-14T02:40:05.436Z|8384585|dpdk|INFO|PMD: bnx2x_attach(): PCIe caps
reading was failed
2017-11-14T02:40:05.436Z|8384586|dpdk|ERR|PMD: bnx2x_common_dev_init():
bnx2x_attach failed (-12)
2017-11-14T02:40:05.436Z|8384587|dpdk|ERR|EAL: Requested device 0000:20:00.1
cannot be used
So, why there comes the Permission prolem? And what should I do for the PCIe
error? Or it is the NIC drivers' problem?
Thanks a lot.
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