Empathy List Archives

EO

El Ouni, Naceur (IntlAssoc)

Mon, Jul 25, 2016 4:02 PM

Hi,

I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server.
I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though.
Am I doing something wrong ? Couldn't the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time.

Thanks and Regards,

Naceur El Ouni
NIST - Wireless Networks Division (673)
100 Bureau Dr. Building 222-A218
Gaithersburg, MD 20899
(301) 975-3353

Hi, I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server. I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though. Am I doing something wrong ? Couldn't the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time. Thanks and Regards, Naceur El Ouni NIST - Wireless Networks Division (673) 100 Bureau Dr. Building 222-A218 Gaithersburg, MD 20899 (301) 975-3353

M

mleech@ripnet.com

Mon, Jul 25, 2016 4:24 PM

Simultaneous access is not supported.

You might need to unplug the PCIe cable to get it to fully-recognize the
Ethernet port.

Which ethernet port are you using, and at what speed?

On 2016-07-25 12:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote:

Hi,

I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server.

I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though.

Am I doing something wrong ? Couldn't the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time.

Thanks and Regards,

Naceur El Ouni

NIST - Wireless Networks Division (673)

100 Bureau Dr. Building 222-A218

Gaithersburg, MD 20899

(301) 975-3353

USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Simultaneous access is not supported. You might need to unplug the PCIe cable to get it to fully-recognize the Ethernet port. Which ethernet port are you using, and at what speed? On 2016-07-25 12:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote: > Hi, > > I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server. > > I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though. > > Am I doing something wrong ? Couldn't the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time. > > Thanks and Regards, > > Naceur El Ouni > > NIST - Wireless Networks Division (673) > > 100 Bureau Dr. Building 222-A218 > > Gaithersburg, MD 20899 > > (301) 975-3353 > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

MM

Marcus Müller

Mon, Jul 25, 2016 4:29 PM

Hi!

No, that's not possible. Only one host can take control of the USRP at once.

Best regards,

Marcus

On 25.07.2016 18:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote:

Hi,

I have an NI USRP-2942R that I am accessing through PCIe (for that I
have imaged with a *LVBITX *FPGA bitstream) from one server.

I need to access it through Ethernet from a second server. I kept it
connected through PCIe to the 1^st one. Unloaded NI driver, turned off
the USRP. Plugged the SFP1 adapter along with the Ethernet cable from
the second server then turned the NI USRP back on. I am not able to
probe it or find it using uhd_find_devices. The USRP replies to ping
requests though.

Am I doing something wrong ? Couldn’t the USRP be addressed through
Ethernet from one server and PCIe from a second one at the same time.

Thanks and Regards,

Naceur El Ouni

NIST - Wireless Networks Division (673)

100 Bureau Dr. Building 222-A218

Gaithersburg, MD 20899

(301) 975-3353

USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Hi! No, that's not possible. Only one host can take control of the USRP at once. Best regards, Marcus On 25.07.2016 18:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote: > > Hi, > > > > I have an NI USRP-2942R that I am accessing through PCIe (for that I > have imaged with a *LVBITX *FPGA bitstream) from one server. > > I need to access it through Ethernet from a second server. I kept it > connected through PCIe to the 1^st one. Unloaded NI driver, turned off > the USRP. Plugged the SFP1 adapter along with the Ethernet cable from > the second server then turned the NI USRP back on. I am not able to > probe it or find it using uhd_find_devices. The USRP replies to ping > requests though. > > Am I doing something wrong ? Couldn’t the USRP be addressed through > Ethernet from one server and PCIe from a second one at the same time. > > > > Thanks and Regards, > > > > Naceur El Ouni > > NIST - Wireless Networks Division (673) > > 100 Bureau Dr. Building 222-A218 > > Gaithersburg, MD 20899 > > (301) 975-3353 > > > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

EO

El Ouni, Naceur (IntlAssoc)

Mon, Jul 25, 2016 10:33 PM

I am using a 1G Ethernet port #0.

From: mleech@ripnet.com [mailto:mleech@ripnet.com]
Sent: Monday, July 25, 2016 12:25 PM
To: El Ouni, Naceur (IntlAssoc) naceur.elouni@nist.gov
Cc: usrp-users@lists.ettus.com
Subject: Re: [USRP-users] NI USRP-2942R PCIe and Ethernet simultaneous access

Simultaneous access is not supported.

You might need to unplug the PCIe cable to get it to fully-recognize the Ethernet port.

Which ethernet port are you using, and at what speed?

On 2016-07-25 12:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote:
Hi,

I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server.
I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though.
Am I doing something wrong ? Couldn’t the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time.

Thanks and Regards,

Naceur El Ouni
NIST - Wireless Networks Division (673)
100 Bureau Dr. Building 222-A218
Gaithersburg, MD 20899
(301) 975-3353

USRP-users mailing list
USRP-users@lists.ettus.com mailto:USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

I am using a 1G Ethernet port #0. From: mleech@ripnet.com [mailto:mleech@ripnet.com] Sent: Monday, July 25, 2016 12:25 PM To: El Ouni, Naceur (IntlAssoc) <naceur.elouni@nist.gov> Cc: usrp-users@lists.ettus.com Subject: Re: [USRP-users] NI USRP-2942R PCIe and Ethernet simultaneous access Simultaneous access is not supported. You might need to unplug the PCIe cable to get it to fully-recognize the Ethernet port. Which ethernet port are you using, and at what speed? On 2016-07-25 12:02, El Ouni, Naceur (IntlAssoc) via USRP-users wrote: Hi, I have an NI USRP-2942R that I am accessing through PCIe (for that I have imaged with a LVBITX FPGA bitstream) from one server. I need to access it through Ethernet from a second server. I kept it connected through PCIe to the 1st one. Unloaded NI driver, turned off the USRP. Plugged the SFP1 adapter along with the Ethernet cable from the second server then turned the NI USRP back on. I am not able to probe it or find it using uhd_find_devices. The USRP replies to ping requests though. Am I doing something wrong ? Couldn’t the USRP be addressed through Ethernet from one server and PCIe from a second one at the same time. Thanks and Regards, Naceur El Ouni NIST - Wireless Networks Division (673) 100 Bureau Dr. Building 222-A218 Gaithersburg, MD 20899 (301) 975-3353 _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com