So does the U-Boot environment determine the MAC address of eth0 prior to booting the kernel? Or is it during the make of the boot image? I just find it a stretch to believe that I am running an image on a number of SDRs, and they're all using the same MAC address, possibly from the e310 for which the boot image was generated?
On Wed, Nov 25, 2020 at 8:59 AM Philip Balister <[email protected]> wrote: > Mine is different, but both seem to be from the National Instruments > block (which is good): > > root@ni-e31x-30D280A:~# ifconfig > eth0 Link encap:Ethernet HWaddr 00:80:2F:25:02:37 > inet addr:192.168.11.152 Bcast:192.168.11.255 > > I see a warning early in boot about using a MAC address from ROM. I'm > not sure where that came from. > > Philip > > On 11/25/20 8:36 AM, Andrew Payne via USRP-users wrote: > > ---------- Forwarded message --------- > > From: Andrew Payne <[email protected]> > > Date: Wed, Nov 25, 2020 at 8:35 AM > > Subject: Re: [USRP-users] E310: Change MAC Address? > > To: Philip Balister <[email protected]> > > > > > > It is: 00:80:2f:19:4c:37 > > > > When is that .patch file ran, is it during compilation of the BSP? When > > would I see that error message printf("I2C EEPROM MAC address read > > failed\n");? > > > > How could I experiment with compiling a new BSP with the UHD 3.15 > > environment loaded, so then I may insert my own MAC Address or get the > i2c > > EEPROM read to work? Do I need > > https://github.com/EttusResearch/meta-ettus > > and > > https://github.com/Xilinx/u-boot-xlnx > > and may be use this guide: > > https://opencpi.github.io/bsp_e310/Ettus_E3xx_Getting_Started_Guide.pdf > > ? > > > > Thanks, > > Andrew > > > > > > On Wed, Nov 25, 2020 at 8:26 AM Philip Balister <[email protected]> > wrote: > > > >> What is that mac address? I'd like to see if it matches mine. > >> > >> If I recall correctly, the mac address is flashed into the i2c eeprom, > >> u-boot is supposed to read that and use it. Factory test should set it > >> up uniquely. But my memories fade. Inspecting the u-boot source might > >> show us .... > >> > >> > >> > https://github.com/EttusResearch/meta-ettus/blob/zeus/meta-e31x/recipes-bsp/u-boot/files/0001-ni-zynq-Add-support-for-NI-E31x-SG1-SG3-boards.patch#L397 > >> > >> I didn't sift through the ifdef's though. > >> > >> Philip > >> > >> On 11/24/20 7:28 PM, Andrew Payne via USRP-users wrote: > >>> Is there a way to change the mac address of my e310s? I have imaged > >>> several e310s using the image file in > >>> https://files.ettus.com/binaries/cache/e3xx/meta-ettus-v3.15.0.0/, and > >> they > >>> all have the same MAC address. > >>> > >>> On some searching around the web I can see that it is likely that the > MAC > >>> address parameter is specified as a U-boot parameter. I'd like to know > >>> what my options are for changing it. > >>> > >>> Thanks, > >>> Andrew > >>> > >>> > >>> _______________________________________________ > >>> USRP-users mailing list > >>> [email protected] > >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >>> > >> > > > > > > _______________________________________________ > > USRP-users mailing list > > [email protected] > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > >
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