MFp4: MPSAFE firewire stack.

- lock its own locks and drop Giant.
- create its own taskqueue thread.
- split interrupt routine
- use interrupt filter as a fast interrupt.
- run watchdog timer in taskqueue so that it should be
   serialized with the bottom half.
- add extra sanity check for transaction labels.
   disable ad-hoc workaround for unknown tlabels.
- add sleep/wakeup synchronization primitives
- don't reset OHCI in fwohci_stop()

1 files changed, 4 insertions, 1 deletions

diff --git a/sys/dev/firewire/if_fwevar.h b/sys/dev/firewire/if_fwevar.h
index 73fcb3d..4b8eb76 100644
--- a/sys/dev/firewire/if_fwevar.h
+++ b/sys/dev/firewire/if_fwevar.h
@@ -38,7 +38,7 @@
 #define _NET_IF_FWEVAR_H_
 
 struct fwe_softc {
-	/* XXX this must be first for fd.post_explore() */
+	/* XXX this must be the first for fd.post_explore() */
 	struct firewire_dev_comm fd;
 	short stream_ch;
 	short dma_ch;
@@ -48,5 +48,8 @@ struct fwe_softc {
 		struct ifnet *ifp;
 		struct fwe_softc *fwe;
 	} eth_softc;
+	struct mtx mtx;
 };
+#define FWE_LOCK(fwe)	mtx_lock(&(fwe)->mtx)
+#define FWE_UNLOCK(fwe)	mtx_unlock(&(fwe)->mtx)
 #endif /* !_NET_IF_FWEVAR_H_ */