Module Name: src
Committed By: msaitoh
Date: Fri Dec 25 05:45:40 UTC 2015
Modified Files:
src/sys/dev/pci: if_wm.c
Log Message:
Modify comment for 82544 Errata 9 "Certain register cannot be written with
particular alignments in PCI-X bus operation".
To generate a diff of this commit:
cvs rdiff -u -r1.386 -r1.387 src/sys/dev/pci/if_wm.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/dev/pci/if_wm.c
diff -u src/sys/dev/pci/if_wm.c:1.386 src/sys/dev/pci/if_wm.c:1.387
--- src/sys/dev/pci/if_wm.c:1.386 Fri Dec 25 04:50:16 2015
+++ src/sys/dev/pci/if_wm.c Fri Dec 25 05:45:40 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: if_wm.c,v 1.386 2015/12/25 04:50:16 msaitoh Exp $ */
+/* $NetBSD: if_wm.c,v 1.387 2015/12/25 05:45:40 msaitoh Exp $ */
/*
* Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@@ -83,7 +83,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.386 2015/12/25 04:50:16 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.387 2015/12/25 05:45:40 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "opt_net_mpsafe.h"
@@ -3127,8 +3127,12 @@ wm_set_filter(struct wm_softc *sc)
hash = CSR_READ(sc, mta_reg + (reg << 2));
hash |= 1U << bit;
- /* XXX Hardware bug?? */
if (sc->sc_type == WM_T_82544 && (reg & 1) != 0) {
+ /*
+ * 82544 Errata 9: Certain register cannot be written
+ * with particular alignments in PCI-X bus operation
+ * (FCAH, MTA and VFTA).
+ */
bit = CSR_READ(sc, mta_reg + ((reg - 1) << 2));
CSR_WRITE(sc, mta_reg + (reg << 2), hash);
CSR_WRITE(sc, mta_reg + ((reg - 1) << 2), bit);
