[dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[B Gopikrishna]

Hi
when I run the l3fwd application with the below command line, I am observing the error "Cannot configure device: err=-22, port=0". The complete log is posted below. 

./build/l3fwd -c 0x03 -n 2 -- -p 0x03 --config="(0,0,0),(1,1,1)"

Setup:
a) Virtual machine booted with Fedora20 with 2 virtual CPU
b) compiled DPDK git version
c) configured 2 vNIC's with e1000 drivers

Any help in resolving the error would be of great help.

********************************************************************

Network devices using IGB_UIO driver
====================================
0000:00:0b.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused=
0000:00:0c.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused=
Network devices using kernel driver
===================================
0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_ui

********************************************************************
EAL: Master core 0 is ready (tid=8ac3e880)
EAL: Core 1 is ready (tid=3f1b0700)
EAL: PCI device 0000:00:03.0 on NUMA socket -1
EAL:   probe driver: 1af4:1000 rte_virtio_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping
EAL: PCI device 0000:00:0b.0 on NUMA socket -1
EAL:   probe driver: 8086:100e rte_em_pmd
EAL:   PCI memory mapped at 0x7fa58abe8000
EAL: PCI device 0000:00:0c.0 on NUMA socket -1
EAL:   probe driver: 8086:100e rte_em_pmd
EAL:   PCI memory mapped at 0x7fa58abc8000
Initializing port 0 ... Creating queues: nb_rxq=1 nb_txq=2... EAL: Error - exiting with code: 1
  Cause: Cannot configure device: err=-22, port=0
********************************************************************

Regards
Gopi Krishna B
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Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[Thomas Monjalon]

Hi,

2014-04-18 17:39, B Gopikrishna:
> when I run the l3fwd application with the below command line, I am observing
> the error "Cannot configure device: err=-22, port=0". The complete log is
> posted below.

Could you try to reproduce it with the git HEAD version?
It may be fixed by this commit:
	d73d8f3   timer: fix TSC frequency by not reading /proc/cpuinfo

-- 
Thomas

Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[Tomasz K]

Hi Gopi
I recently run into the same problem when using 82576 with igb_uio on VM.
The problem is not e1000 or igb. The problem is with the other network
device managed by virtio-pci driver

Notice that when application polls for ETH devices it prints out
EAL:   probe driver: 1af4:1000 rte_virtio_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping

So even though this NIC is not managed by igb_uio driver the app prints
that driver used for it is rte_virtio_pmd.
After setting up ETH devices app tries to set up tx/rx queues and it fails
on port 0 (which is virtio)

You can try and run the application with -p 0x6 instead of 0x3. This should
mask out port0 from configuration

Thanks
Tomasz

2014-04-18 14:31 GMT+02:00 Thomas Monjalon <thomas.monjalon@6wind.com>:

> Hi,
>
> 2014-04-18 17:39, B Gopikrishna:
> > when I run the l3fwd application with the below command line, I am
> observing
> > the error "Cannot configure device: err=-22, port=0". The complete log is
> > posted below.
>
> Could you try to reproduce it with the git HEAD version?
> It may be fixed by this commit:
>         d73d8f3   timer: fix TSC frequency by not reading /proc/cpuinfo
>
> --
> Thomas
>

Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[B Gopikrishna]

Apologies for the delayed reply, we continued with 1 core to complete our work. But 
currently we would like to extend running the application with 2 core's and we are still unable to after following suggestions by
 
Thomas, the commit mentioned by you is already available as part of the DPDK code we compiled. 
 
Tomasz, we tried with the port mask of 0x06, but this doesnot work either.
 
Any other suggestions or pointers to resolve the same would be of great help.
Thankyou
 
Regards
Gopi Krishna B

-----Tomasz K <tomasz.kasowicz@gmail.com> wrote: -----
To: Thomas Monjalon <thomas.monjalon@6wind.com>
From: Tomasz K <tomasz.kasowicz@gmail.com>
Date: 04/18/2014 06:07PM
cc: B Gopikrishna <b.gopikrishna@tcs.com>, dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers


Hi Gopi

I recently run into the same problem when using 82576 with igb_uio on VM.
The problem is not e1000 or igb. The problem is with the other network device managed by virtio-pci driver


Notice that when application polls for ETH devices it prints out
EAL:   probe driver: 1af4:1000 rte_virtio_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping


So even though this NIC is not managed by igb_uio driver the app prints that driver used for it is rte_virtio_pmd.
After setting up ETH devices app tries to set up tx/rx queues and it fails on port 0 (which is virtio)


You can try and run the application with -p 0x6 instead of 0x3. This should mask out port0 from configuration


Thanks
Tomasz


2014-04-18 14:31 GMT+02:00 Thomas Monjalon <thomas.monjalon@6wind.com>:

Hi,

2014-04-18 17:39, B Gopikrishna:

> when I run the l3fwd application with the below command line, I am observing
> the error "Cannot configure device: err=-22, port=0". The complete log is
> posted below.


Could you try to reproduce it with the git HEAD version?
It may be fixed by this commit:
        d73d8f3   timer: fix TSC frequency by not reading /proc/cpuinfo

--
Thomas
=====-----=====-----=====
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Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers #PERSONAL#

[B Gopikrishna]

Apologies for the delayed reply, we continued with 1 core to complete our work. But 
currently we would like to extend running the application with 2 core's and we are still unable to after following suggestions by
 
Thomas, the commit mentioned by you is already available as part of the DPDK code we compiled. 
 
Tomasz, we tried with the port mask of 0x06, but this doesnot work either.
 
Any other suggestions or pointers to resolve the same would be of great help.
Thankyou
 
Regards
Gopi Krishna B



-----Tomasz K <tomasz.kasowicz@gmail.com> wrote: -----


To: Thomas Monjalon <thomas.monjalon@6wind.com>
From: Tomasz K <tomasz.kasowicz@gmail.com>
Date: 04/18/2014 06:07PM
cc: B Gopikrishna <b.gopikrishna@tcs.com>, dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers


Hi Gopi

I recently run into the same problem when using 82576 with igb_uio on VM.
The problem is not e1000 or igb. The problem is with the other network device managed by virtio-pci driver


Notice that when application polls for ETH devices it prints out
EAL:   probe driver: 1af4:1000 rte_virtio_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping


So even though this NIC is not managed by igb_uio driver the app prints that driver used for it is rte_virtio_pmd.
After setting up ETH devices app tries to set up tx/rx queues and it fails on port 0 (which is virtio)


You can try and run the application with -p 0x6 instead of 0x3. This should mask out port0 from configuration


Thanks
Tomasz


2014-04-18 14:31 GMT+02:00 Thomas Monjalon <thomas.monjalon@6wind.com>:

Hi,

2014-04-18 17:39, B Gopikrishna:

> when I run the l3fwd application with the below command line, I am observing
> the error "Cannot configure device: err=-22, port=0". The complete log is
> posted below.


Could you try to reproduce it with the git HEAD version?
It may be fixed by this commit:
        d73d8f3   timer: fix TSC frequency by not reading /proc/cpuinfo

--
Thomas
=====-----=====-----=====
Notice: The information contained in this e-mail
message and/or attachments to it may contain 
confidential or privileged information. If you are 
not the intended recipient, any dissemination, use, 
review, distribution, printing or copying of the 
information contained in this e-mail message 
and/or attachments to it are strictly prohibited. If 
you have received this communication in error, 
please notify us by reply e-mail or telephone and 
immediately and permanently delete the message 
and any attachments. Thank you

Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers

[Marc Sune]

Maybe useless but, I've also seen this error when trying to configure 
e1000's with more than 1 queue.

Sometimes the only way to see such (stupid) errors is to enable the 
DEBUG output from the driver:

marc@dpdk:~/dpdk/config$ git diff .
diff --git a/config/defconfig_x86_64-default-linuxapp-gcc 
b/config/defconfig_x86_64-default-linuxapp-gcc
index f11ffbf..9175954 100644
--- a/config/defconfig_x86_64-default-linuxapp-gcc
+++ b/config/defconfig_x86_64-default-linuxapp-gcc
@@ -122,7 +122,7 @@ CONFIG_RTE_LOG_LEVEL=8
  CONFIG_RTE_LOG_HISTORY=256
  CONFIG_RTE_LIBEAL_USE_HPET=n
  CONFIG_RTE_EAL_ALLOW_INV_SOCKET_ID=n
-CONFIG_RTE_EAL_ALWAYS_PANIC_ON_ERROR=n
+CONFIG_RTE_EAL_ALWAYS_PANIC_ON_ERROR=y

@@ -158,11 +158,11 @@ CONFIG_RTE_ETHDEV_QUEUE_STAT_CNTRS=16
  #
  CONFIG_RTE_LIBRTE_EM_PMD=y
  CONFIG_RTE_LIBRTE_IGB_PMD=y
-CONFIG_RTE_LIBRTE_E1000_DEBUG_INIT=n
-CONFIG_RTE_LIBRTE_E1000_DEBUG_RX=n
+CONFIG_RTE_LIBRTE_E1000_DEBUG_INIT=y
+CONFIG_RTE_LIBRTE_E1000_DEBUG_RX=y
  CONFIG_RTE_LIBRTE_E1000_DEBUG_TX=n
  CONFIG_RTE_LIBRTE_E1000_DEBUG_TX_FREE=n
-CONFIG_RTE_LIBRTE_E1000_DEBUG_DRIVER=n
+CONFIG_RTE_LIBRTE_E1000_DEBUG_DRIVER=y
  CONFIG_RTE_LIBRTE_E1000_PF_DISABLE_STRIP_CRC=n

@all: would it make sense to be able to enable debug for non performance 
critical operations (so except for TX/RX) via an API calls/global variables?

Best regards
marc


On 29/04/14 11:28, B Gopikrishna wrote:
> Apologies for the delayed reply, we continued with 1 core to complete our work. But
> currently we would like to extend running the application with 2 core's and we are still unable to after following suggestions by
>   
> Thomas, the commit mentioned by you is already available as part of the DPDK code we compiled.
>   
> Tomasz, we tried with the port mask of 0x06, but this doesnot work either.
>   
> Any other suggestions or pointers to resolve the same would be of great help.
> Thankyou
>   
> Regards
> Gopi Krishna B
>
> -----Tomasz K <tomasz.kasowicz@gmail.com> wrote: -----
> To: Thomas Monjalon <thomas.monjalon@6wind.com>
> From: Tomasz K <tomasz.kasowicz@gmail.com>
> Date: 04/18/2014 06:07PM
> cc: B Gopikrishna <b.gopikrishna@tcs.com>, dev <dev@dpdk.org>
> Subject: Re: [dpdk-dev] rte_eth_dev_configure fails on VM with e1000 drivers
>
>
> Hi Gopi
>
> I recently run into the same problem when using 82576 with igb_uio on VM.
> The problem is not e1000 or igb. The problem is with the other network device managed by virtio-pci driver
>
>
> Notice that when application polls for ETH devices it prints out
> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
> EAL:   0000:00:03.0 not managed by UIO driver, skipping
>
>
> So even though this NIC is not managed by igb_uio driver the app prints that driver used for it is rte_virtio_pmd.
> After setting up ETH devices app tries to set up tx/rx queues and it fails on port 0 (which is virtio)
>
>
> You can try and run the application with -p 0x6 instead of 0x3. This should mask out port0 from configuration
>
>
> Thanks
> Tomasz
>
>
> 2014-04-18 14:31 GMT+02:00 Thomas Monjalon <thomas.monjalon@6wind.com>:
>
> Hi,
>
> 2014-04-18 17:39, B Gopikrishna:
>
>> when I run the l3fwd application with the below command line, I am observing
>> the error "Cannot configure device: err=-22, port=0". The complete log is
>> posted below.
>
> Could you try to reproduce it with the git HEAD version?
> It may be fixed by this commit:
>          d73d8f3   timer: fix TSC frequency by not reading /proc/cpuinfo
>
> --
> Thomas
> =====-----=====-----=====
> Notice: The information contained in this e-mail
> message and/or attachments to it may contain
> confidential or privileged information. If you are
> not the intended recipient, any dissemination, use,
> review, distribution, printing or copying of the
> information contained in this e-mail message
> and/or attachments to it are strictly prohibited. If
> you have received this communication in error,
> please notify us by reply e-mail or telephone and
> immediately and permanently delete the message
> and any attachments. Thank you
>
>