[src/trunk]: src/sys/dev/pci Only tick mii if the phy had a status change.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fc5f46f040fc
branches:  trunk
changeset: 749990:fc5f46f040fc
user:      matt <matt%NetBSD.org@localhost>
date:      Mon Dec 14 00:52:04 2009 +0000

description:
Only tick mii if the phy had a status change.

diffstat:

 sys/dev/pci/if_msk.c |  14 ++++++++++----
 1 files changed, 10 insertions(+), 4 deletions(-)

diffs (46 lines):

diff -r 9c1e52533f96 -r fc5f46f040fc sys/dev/pci/if_msk.c
--- a/sys/dev/pci/if_msk.c      Mon Dec 14 00:51:06 2009 +0000
+++ b/sys/dev/pci/if_msk.c      Mon Dec 14 00:52:04 2009 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_msk.c,v 1.28 2009/09/05 14:09:55 tsutsui Exp $ */
+/* $NetBSD: if_msk.c,v 1.29 2009/12/14 00:52:04 matt Exp $ */
 /*     $OpenBSD: if_msk.c,v 1.42 2007/01/17 02:43:02 krw Exp $ */
 
 /*
@@ -52,7 +52,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_msk.c,v 1.28 2009/09/05 14:09:55 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_msk.c,v 1.29 2009/12/14 00:52:04 matt Exp $");
 
 #include "bpfilter.h"
 #include "rnd.h"
@@ -1219,8 +1219,9 @@
        case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
                if (pci_mapreg_map(pa, SK_PCI_LOMEM,
                                   memtype, 0, &sc->sk_btag, &sc->sk_bhandle,
-                                  NULL, &size) == 0)
+                                  NULL, &size) == 0) {
                        break;
+               }
        default:
                aprint_error(": can't map mem space\n");
                return;
@@ -1821,10 +1822,15 @@
 {
        struct sk_if_softc *sc_if = xsc_if;  
        struct mii_data *mii = &sc_if->sk_mii;
+       uint16_t gpsr;
        int s;
 
        s = splnet();
-       mii_tick(mii);
+       gpsr = SK_YU_READ_2(sc_if, YUKON_GPSR);
+       if ((gpsr & YU_GPSR_MII_PHY_STC) != 0) {
+               SK_YU_WRITE_2(sc_if, YUKON_GPSR, YU_GPSR_MII_PHY_STC);
+               mii_tick(mii);
+       }
        splx(s);
 
        callout_schedule(&sc_if->sk_tick_ch, hz);