Fix iosm: WWAN cannot build the connection (DW5823e)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Medium
|
koba | ||
Kinetic |
Fix Released
|
Medium
|
koba | ||
linux-oem-6.0 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
koba | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
WWAN(DW5823e) can't build the connection successfully.
[Fix]
With INTEL_IOMMU disable config or by forcing intel_iommu=off from
grub some of the features of IOSM driver like browsing, flashing &
coredump collection is not working.
When driver calls DMA API - dma_map_single() for tx transfers. It is
resulting in dma mapping error.
Set the device DMA addressing capabilities using dma_set_mask() and
remove the INTEL_IOMMU dependency in kconfig so that driver follows
the platform config either INTEL_IOMMU enable or disable.
Because the generic jammy(5.15) doesn't contain NET_DEVLINK and RELAY
CONFIGs yet on iosm module, the single patch is necessary for Jammy.
[Test Case]
1. boot up with kernel applied the FIX.
2. check the status of wwan by "mmcli -m 0"
Status| unlock retries: sim-pin (3)
| state: ^[32mconnected^[0m
| power state: on
| access tech: lte
| signal quality: 45% (recent)
-
3GPP | imei: ######
| enabled locks: sim, fixed-dialing
| operator id: 46692
| operator name: Chunghwa Telecom
| registration: home
| packet service state: attached
| pco:
| 0: (complete)
[Where problems could occur]
remove the dependency for intel_iommu, iosm would fit better on other platforms not only Intel.
CVE References
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | New → In Progress |
assignee: | nobody → koba (kobako) |
Changed in linux (Ubuntu Kinetic): | |
status: | New → In Progress |
Changed in linux (Ubuntu Lunar): | |
status: | New → In Progress |
Changed in linux (Ubuntu Kinetic): | |
assignee: | nobody → koba (kobako) |
Changed in linux (Ubuntu Lunar): | |
assignee: | nobody → koba (kobako) |
Changed in linux (Ubuntu Jammy): | |
status: | New → In Progress |
assignee: | nobody → koba (kobako) |
no longer affects: | linux (Ubuntu Lunar) |
no longer affects: | linux-oem-6.0 (Ubuntu Lunar) |
description: | updated |
summary: |
- Fix iosm: WWAN cannot detect insert SIM card (DW5823e) Edit + Fix iosm: WWAN cannot detect insert SIM card (DW5823e) |
summary: |
- Fix iosm: WWAN cannot detect insert SIM card (DW5823e) + Fix iosm: WWAN cannot build the connection (DW5823e) |
tags: | added: oem-priority originate-from-1996162 somerville |
Changed in linux (Ubuntu): | |
status: | In Progress → Invalid |
assignee: | koba (kobako) → nobody |
Changed in linux (Ubuntu Kinetic): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Jammy): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Kinetic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Kinetic): | |
status: | Fix Committed → In Progress |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in linux-oem-6.0 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Kinetic): | |
status: | New → Invalid |
tags: |
added: verification-done-jammy verification-done-kinetic removed: verification-needed-jammy verification-needed-kinetic |
This bug is awaiting verification that the linux-oem- 6.0/6.0. 0-1009. 9 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- jammy' to 'verification- done-jammy' . If the problem still exists, change the tag 'verification- needed- jammy' to 'verification- failed- jammy'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!