diff options
| author | msaitoh <msaitoh@NetBSD.org> | 2015-12-25 05:45:40 +0000 |
|---|---|---|
| committer | msaitoh <msaitoh@NetBSD.org> | 2015-12-25 05:45:40 +0000 |
| commit | baefebc6ca5c87d86c2a3f4abefdae2886b116b0 (patch) | |
| tree | d880caf7b1ee3f81e0aff2fbe2fb130161cb0184 /sys/dev | |
| parent | 267c1998ff23b69e3e99f03aab8a85b2009ecf8e (diff) | |
Modify comment for 82544 Errata 9 "Certain register cannot be written with
particular alignments in PCI-X bus operation".
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/if_wm.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sys/dev/pci/if_wm.c b/sys/dev/pci/if_wm.c index 631b35819a1..fa95d248bb9 100644 --- a/sys/dev/pci/if_wm.c +++ b/sys/dev/pci/if_wm.c @@ -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); |
