Bug 213165 - [rtl8106e] if aspm is enabled, take a long time to bring up PHY link
Summary: [rtl8106e] if aspm is enabled, take a long time to bring up PHY link
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Network (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_network@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-05-21 05:49 UTC by KobaKo
Modified: 2021-06-04 07:14 UTC (History)
0 users

See Also:
Kernel Version: 5.10
Subsystem:
Regression: No
Bisected commit-id:

Attachments
patch Disable ASPM L1_1 (1.38 KB, application/mbox)
2021-05-21 05:49 UTC, KobaKo 		Details
lspci vvv (3.77 KB, text/plain)
2021-06-04 06:46 UTC, KobaKo 		Details
ethool -i (261 bytes, text/plain)
2021-06-04 06:46 UTC, KobaKo 		Details
lspci -vvv v1 (3.83 KB, text/plain)
2021-06-04 07:04 UTC, KobaKo 		Details
dmesg (81.41 KB, text/plain)
2021-06-04 07:05 UTC, KobaKo 		Details
Show Obsolete (1) Add an attachment (proposed patch, testcase, etc.)

Description KobaKo 2021-05-21 05:49:05 UTC 
Created attachment 296909 [details]
patch Disable ASPM L1_1

Use 5.10 and disable the ASPM L1_1,
If link partner's capability have 1Gbps capability.
the phy link can't be established.

If use 5.10 without patch that disable ASPM L1_1(in-box driver disable L0s and L1),
the machine can't put into deeper than PC3.

Will upload more logs.
Comment 1 KobaKo 2021-06-04 06:46:03 UTC 
Created attachment 297147 [details]
lspci vvv
Comment 2 KobaKo 2021-06-04 06:46:24 UTC 
Created attachment 297149 [details]
ethool -i
Comment 3 KobaKo 2021-06-04 07:04:32 UTC 
Created attachment 297151 [details]
lspci -vvv v1
Comment 4 KobaKo 2021-06-04 07:05:16 UTC 
Created attachment 297153 [details]
dmesg
Comment 5 KobaKo 2021-06-04 07:14:24 UTC 
For rtl8106E, ASPM is enabled.
The issue is observed after boot-up into ubuntu desktop, plug the ethernet cable.
must wait a long time to get "link up" in dmesg.
Once the link is up one time, even hot-plug cable multiple times, the "link up" would show up immediately.
If unplug cable and wait a long time, the issue would be observed again.

In fact, the PHY link is established after plug cable.
but rtl8106e doesn't fire interrupt and OS can't get link status.
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