Bug 1253943

Summary: Dell-branded Sierra Wireless modems require Set FCC Auth command (upstream libqmi patch)
Product: Red Hat Enterprise Linux 7 Reporter: David Ward <david.ward>
Component: libqmiAssignee: Dan Williams <dcbw>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: high Docs Contact:
Priority: high    
Version: 7.1CC: dcbw, lrintel, rkhan, sbeal, svashisht, vanhoof, vbenes
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-11-04 08:30:26 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1203710, 1223646, 1253946, 1301628, 1313485    
Attachments:
Description Flags
Backported commit 22628a6 from upstream libqmi
none
Backported commit 22628a6 from upstream libqmi (includes qmicli change) none

Description David Ward 2015-08-15 21:53:38 UTC
Dell-branded Sierra Wireless modems will not come online without first sending a DMS Set FCC Authentication command. For more information: https://sigquit.wordpress.com/2015/02/09/dell-branded-sierra-wireless-3g4g-modem-not-online/

The command was added to upstream libqmi to fix this issue: http://cgit.freedesktop.org/libqmi/commit/?id=22628a69dad6a1c4b0400dacf1c13c48425faf69

I easily backported this commit onto RHEL 7 (libqmi-1.6.0-4.el7), and tested that (in conjunction with the fix for ModemManager) a Dell Wireless 5808e modem now successfully connects to the network. Please add the attached patch to the RHEL 7 libqmi package.

Comment 1 David Ward 2015-08-15 21:55:20 UTC
Created attachment 1063337 [details]
Backported commit 22628a6 from upstream libqmi

Comment 4 Dan Williams 2015-08-18 21:20:38 UTC
Thanks for the backport David!

Comment 5 David Ward 2015-08-18 23:11:49 UTC
Thank you Dan for the quick response!

Just FYI, I created a separate bug to track adding USB IDs to the qmi_wwan and qcserial drivers in the kernel, so these adapters can be used in the QMI configuration: https://bugzilla.redhat.com/show_bug.cgi?id=1253955

Comment 6 David Ward 2015-09-09 14:02:55 UTC
Created attachment 1071773 [details]
Backported commit 22628a6 from upstream libqmi (includes qmicli change)

Dan, my apologies -- can you please apply this corrected patch instead?

Jacob Yundt pointed out that the qmicli command was missing the '--dms-set-fcc-authentication' action with the earlier patch applied. When I first opened this bug, I had tried to apply the original commit from the libqmi repository as a patch during the RPM build, but that failed because the src/qmicli/ directory did not exist. I mistakenly assumed that qmicli had not been implemented in this version, and I just removed that change from the patch file.

Actually, it did exist, but in a different directory (cli/). This time I used git to cherry-pick the commit cleanly onto the 1.6.0 tag in the repository (it recognized the directory rename) before applying it as a patch to the RHEL 7 package. Now the '--dms-set-fcc-authentication' action is present when I run qmicli.

Sorry for the inconvenience.

Comment 9 David Ward 2015-12-03 14:22:44 UTC
Was the updated patch applied (replacing the original patch attached to this bug)?

Comment 11 Dan Williams 2016-03-02 20:56:58 UTC
(In reply to David Ward from comment #9)
> Was the updated patch applied (replacing the original patch attached to this
> bug)?

It hasn't been applied yet.  We hope to apply the patch for the next regular Red Hat Enterprise Linux point release, and we are getting some testing infrastructure into place to better manage regression risk from this and other modem-related patches we hope to apply to the WWAN stack.  So no fear, this hasn't been forgotten.  Thanks!

Comment 12 Mike McCune 2016-03-28 22:26:18 UTC
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions

Comment 14 Vladimir Benes 2016-09-28 11:52:28 UTC
Sierra 7355 modem works as expected not sure if these rebranded Dell devices are different but definitely Sierra works as expected.

Comment 16 errata-xmlrpc 2016-11-04 08:30:26 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2016-2556.html