Make cbb interrupts MPSAFE:

o Register ISR INTR_MPSAFE.
o Loop on KTHREAD_DONE == 0 in the thread.
o Safe the INTR_MPSAFE flag for client drivers (don't know if there are any
  CardBus/PCI drivers that are INTR_MPSAFE)
o Read status after acquiring mtx_lock(Giant) rather than before so that we
  catch state changes that happen while Giant is being acquired.
o Turn off the CD bit when we see a CD interrupt, and turn it back on after
  we've attached/detached the card.
o On suspend, actually set the CBB_SOCKET_MASK to zero rather than oring
  in '0' to turn it off on suspend.
o If the ISR that's registerd is MPSAFE, don't acquire Giant around call to
  client ISR.
o Fix comments to reflect these changes.

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/dev/pccbb/pccbbvar.h b/sys/dev/pccbb/pccbbvar.h
index d77d33b..c050c11 100644
--- a/sys/dev/pccbb/pccbbvar.h
+++ b/sys/dev/pccbb/pccbbvar.h
@@ -33,8 +33,9 @@
  */
 
 struct cbb_intrhand {
-	driver_intr_t *intr;
-	void	*arg;
+	driver_intr_t	*intr;
+	void 		*arg;
+	uint32_t	flags;
 	STAILQ_ENTRY(cbb_intrhand) entries;
 };