CVSROOT: /cvs
Module name: src
Changes by: d...@cvs.openbsd.org 2015/09/29 04:52:22
Modified files:
sys/dev/pci : if_myx.c
Log message:
get rid of the mutex between access to the status block and myx_down
myx is unusual in that it has an explicit command to shut down the
chip that gets an interrupt when it's done. so myx_down sends the
command and has to sleep until it gets that interrupt. this moves
to using a single int to represent that state (so loads and stores
are atomic), and sleep_setup/sleep_finish in myx_down to wait for
it to change.
this has been running in production at work for a few months now
tested by chris@
