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ena: move hw stats updating routine to separate task
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Authored by mk_semihalf.com on May 26 2017, 10:51 AM.

Details

Summary

Initially, stats were being updated each time OS was requesting for
first statistic.
To read statistics from hw, condvar was used. cv_timedwait cannot be
called when unsleepable lock is held, and this happens when FreeBSD
is requesting statistic.
Separate task is reading statistics from NIC each 1 second.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.