New China SRRC compliance readiness check for Realtek WLAN
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
In Progress
|
High
|
You-Sheng Yang | ||
Jammy |
Won't Fix
|
Undecided
|
Unassigned | ||
Noble |
In Progress
|
High
|
You-Sheng Yang | ||
linux-oem-6.5 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
High
|
You-Sheng Yang | ||
Noble |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[SRU Justification]
BugLink: https:/
[Impact]
SRRC (State Radio Regulation of China) compliance readiness check for Realtek WLAN.
[Fix]
Capability for Realtek WiFi TX power tables load and report from RFE (RF front end) parameters is needed. Multiple commits from vanilla kernel.
[Test Case]
```
$ sudo iw reg set CN
# manually connect to 5G ap : center channel 155 bw 80 M
$ sudo cat /sys/kernel/
```
The expected output s
```
Regulatory: CN
MCS_2TX_80M_0 - NON_BF BF | 10, 9, dbm
```
And verification fail output:
```
Regulatory: CN
MCS_2TX_80M_0 - NON_BF BF | 15, 10, dbm
```
[Where problems could occur]
This updates the behaviors and constraints of radio device power transmission for rtw89 driver, and must be done for regulatory compliance.
[Other Info]
As needed for oem-6.5/jammy, nominate only for Noble and oem-6.5/jammy.
========== original bug report ==========
New China SRRC compliance readiness check
Proposed Change:
- China SRRC updates the testing requirement for 2.4/5GHz, the major changes are the in-band RSE limit, and EIRP limits.
- The SRRC updates impact both WLAN modules and platforms. The WLAN modules need to complete the new SRRC testing then platform can start to apply / renew the new SRRC cert. If platform took several WLAN modules but not all of the modules have completed the new SRRC testing updates, platform cannot renew/apply the new SRRC cert.
- The platforms which apply/renew SRRC new standards need to ensure the TX power can meet the new RSE/EIRP limits.
IHV confirmed below driver version can support these requirements.
Realtek:
The upstream driver can support SRRC compliance.
https://<email address hidden>
Changed in linux-oem-6.5 (Ubuntu Noble): | |
status: | New → Invalid |
Changed in linux (Ubuntu Jammy): | |
status: | New → Won't Fix |
tags: | added: oem-priority originate-from-2042990 somerville |
Changed in linux-oem-6.5 (Ubuntu Jammy): | |
status: | New → Triaged |
importance: | Undecided → High |
assignee: | nobody → You-Sheng Yang (vicamo) |
description: | updated |
Changed in linux-oem-6.5 (Ubuntu Jammy): | |
status: | Triaged → In Progress |
Changed in linux (Ubuntu Noble): | |
status: | New → In Progress |
importance: | Undecided → High |
assignee: | nobody → You-Sheng Yang (vicamo) |
Changed in linux-oem-6.5 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
SRU: /kernel. ubuntu. com/gitea/ kernel/ jammy-linux- oem/pulls/ 103 (oem-6.5) /lists. ubuntu. com/archives/ kernel- team/2023- December/ 147538. html (noble)
* https:/
* https:/