Module Name: src
Committed By: bouyer
Date: Sun Jul 2 15:09:53 UTC 2017
Modified Files:
src/sys/arch/arm/allwinner: awin_can.c
Log Message:
In the RX IRQ handler, release the receive buffer in the error paths.
Fix a hang I've been seeing under high traffic.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/arm/allwinner/awin_can.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/allwinner/awin_can.c
diff -u src/sys/arch/arm/allwinner/awin_can.c:1.2 src/sys/arch/arm/allwinner/awin_can.c:1.3
--- src/sys/arch/arm/allwinner/awin_can.c:1.2 Sat May 27 21:02:55 2017
+++ src/sys/arch/arm/allwinner/awin_can.c Sun Jul 2 15:09:53 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: awin_can.c,v 1.2 2017/05/27 21:02:55 bouyer Exp $ */
+/* $NetBSD: awin_can.c,v 1.3 2017/07/02 15:09:53 bouyer Exp $ */
/*-
* Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: awin_can.c,v 1.2 2017/05/27 21:02:55 bouyer Exp $");
+__KERNEL_RCSID(1, "$NetBSD: awin_can.c,v 1.3 2017/07/02 15:09:53 bouyer Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -239,12 +239,14 @@ awin_can_rx_intr(struct awin_can_softc *
if (dlc > CAN_MAX_DLC) {
ifp->if_ierrors++;
+ awin_can_write(sc, AWIN_CAN_CMD_REG, AWIN_CAN_CMD_REL_RX_BUF);
return;
}
m = m_gethdr(M_NOWAIT, MT_HEADER);
if (m == NULL) {
ifp->if_ierrors++;
+ awin_can_write(sc, AWIN_CAN_CMD_REG, AWIN_CAN_CMD_REL_RX_BUF);
return;
}
cf = mtod(m, struct can_frame *);
