[LU-14742] socklnd: detect link down and mark ni as unusable

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Labels: ksocklnd lnet lnet-health
• Assignee: Serguei Smirnov
• Reporter: Serguei Smirnov

Description

To help avoid selecting lnet ni which corresponds to a downed ethernet link for sending, add a mechanism for detecting link events in socklnd. On link up/down events, find corresponding ni and set/clear ni_fatal_error_on flag, similar to how o2iblnd does it.

Comments

[Peter Jones]

Landed for 2.15

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/43952/
Subject: LU-14742 socklnd: detect link state to set fatal error on ni
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: fc2df80e96dc5db9f3fb710893ccf6f442664471

[Gerrit Updater]

Serguei Smirnov ([e-mail]) uploaded a new patch: https://review.whamcloud.com/43952
Subject: LU-14742 socklnd: detect link state to set fatal error on ni
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5e443444449c98b58f2199f6f55589126cc3eb37