Unable to open modem DFU socket - mfw v1.0.1

RE: Unable to open modem DFU socket - mfw v1.0.1

jbrzozoski — Fri, 15 Nov 2019 17:12:18 GMT

I dropped in some extra logging and went to retry the DFU update and .... the socket opened normally?

😕

Download worked just fine! Our app wasn't ready for the thread calling bsd_init() to hang that long on the next bootup, but that's our fault.

I triggered another reboot after a minute or so and the system came up just fine running the alternate modem firmware...

Not sure why that failed on my first half-dozen attempts but worked just fine this time.

... I'm in a pretty good habit of running west update after every git fetch/pull, but maybe I forgot once? I dunno.

I'm going to try testing it a bunch more today, and if it doesn't happen again by the end of the day I'm willing to chalk it up to user error.

RE: Unable to open modem DFU socket - mfw v1.0.1

jbrzozoski — Fri, 15 Nov 2019 02:25:43 GMT

Yes, we have both 1d912f0 and 4cc4121 already. 😕

Modem firmware 1.0.1 should support the DFU socket, right?

Is there some other Kconfig option we could possibly have missed while still enabling CONFIG_DFU_TARGET_MODEM?

Tomorrow at work I'll try adding logging in nrf/lib/bsdlib/nrf91_sockets.c just to ensure we're getting to that layer with the right parameters.

RE: Unable to open modem DFU socket - mfw v1.0.1

sigvartmh — Thu, 14 Nov 2019 21:26:46 GMT

https://github.com/NordicPlayground/fw-nrfconnect-nrf/commit/1d912f09e2fad65f489210e0fe6474c57d66ee72

but based on your sha's I would assume it's included. So if you have this and 4cc41211cc0da1b87615618dd02007458bc4d208

The DFU socket should be offloaded then the question is if the modem FW running on the board supports the DFU command. Since you are not able to open the socket towards the modem using

github.com/.../dfu_target_modem.c

RE: Unable to open modem DFU socket - mfw v1.0.1

jbrzozoski — Thu, 14 Nov 2019 14:23:06 GMT

Here's what I've got:

nrf - based on 2ca6e9cb

nrfxlib - based on a806f5f

zephyr - based on b41b797295

Doing a quick search for the keyword "offload" in the logs I'm not seeing anything ahead of us except for one commit that adjusted the Kconfig from "select" to "imply". Is there a particular commit you can point me to?

RE: Unable to open modem DFU socket - mfw v1.0.1

Simon — Thu, 14 Nov 2019 14:01:10 GMT

What tags are you using for the rest of the project? My suspicion is that you haven't patched Zephyr/nrf to support offloading for DFU sockets.

Best regards,

Simon