Reset the Tx timer when iwm(4) firmware sends a BA notification.
This prevents a bogus "device timeout" if firmware sends a IWM_BA_NOTIF
instead of IWM_TX_CMD in order to let us know that a frame has been sent
on a Tx aggregation queue. Such behaviour was observed on iwx(4), and there
is reason to believe that iwm(4) might also be affected by this issue.
Tested by Jean-Michel Bessot on 7265 via bugs@ where this change seems
to prevent random device timeouts.
Tested by myself on 8265 with no apparent behaviour change seen.
projects / openbsd / commit