[src/netbsd-9]: src/sys/dev/pci Pull up following revision(s) (requested by m...

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

details:   https://anonhg.NetBSD.org/src/rev/3448dfc6a189
branches:  netbsd-9
changeset: 462862:3448dfc6a189
user:      martin <martin%NetBSD.org@localhost>
date:      Mon Nov 25 16:47:16 2019 +0000

description:
Pull up following revision(s) (requested by msaitoh in ticket #477):

        sys/dev/pci/if_vge.c: revision 1.76
        sys/dev/pci/if_vge.c: revision 1.77

 Fixes a bug that "ifmedia vge0 media 1000baseT-FDX" causes device timeout.

If the interface's media is NOT in the "best" mode (i.e. other than IFM_AUTO),
control VGE_DIAGCTL_GMII bit.

- Set duplex correctly when user setting is not IFM_AUTO.
- When the link is up, set VGE_DIAGCTL not from user media setting but from
  the current active link status.

diffstat:

 sys/dev/pci/if_vge.c |  57 +++++++++++++++++++++++++++++----------------------
 1 files changed, 32 insertions(+), 25 deletions(-)

diffs (87 lines):

diff -r ea61039b5dab -r 3448dfc6a189 sys/dev/pci/if_vge.c
--- a/sys/dev/pci/if_vge.c      Mon Nov 25 16:44:31 2019 +0000
+++ b/sys/dev/pci/if_vge.c      Mon Nov 25 16:47:16 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_vge.c,v 1.73.2.1 2019/10/17 18:58:33 martin Exp $ */
+/* $NetBSD: if_vge.c,v 1.73.2.2 2019/11/25 16:47:16 martin Exp $ */
 
 /*-
  * Copyright (c) 2004
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_vge.c,v 1.73.2.1 2019/10/17 18:58:33 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_vge.c,v 1.73.2.2 2019/11/25 16:47:16 martin Exp $");
 
 /*
  * VIA Networking Technologies VT612x PCI gigabit ethernet NIC driver.
@@ -1916,6 +1916,7 @@
        struct vge_softc *sc = ifp->if_softc;
        struct mii_data *mii = &sc->sc_mii;
        struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+       uint8_t dctl;
 
        /*
         * If the user manually selects a media mode, we need to turn
@@ -1927,31 +1928,37 @@
         * always implied, so we turn on the forced mode bit but leave
         * the FDX bit cleared.
         */
+       dctl = CSR_READ_1(sc, VGE_DIAGCTL);
 
-       switch (IFM_SUBTYPE(ife->ifm_media)) {
-       case IFM_AUTO:
-               CSR_CLRBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_MACFORCE);
-               CSR_CLRBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_FDXFORCE);
-               break;
-       case IFM_1000_T:
-               CSR_SETBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_MACFORCE);
-               CSR_CLRBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_FDXFORCE);
-               break;
-       case IFM_100_TX:
-       case IFM_10_T:
-               CSR_SETBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_MACFORCE);
-               if ((ife->ifm_media & IFM_FDX) != 0) {
-                       CSR_SETBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_FDXFORCE);
-               } else {
-                       CSR_CLRBIT_1(sc, VGE_DIAGCTL, VGE_DIAGCTL_FDXFORCE);
-               }
-               break;
-       default:
-               printf("%s: unknown media type: %x\n",
-                   device_xname(sc->sc_dev),
-                   IFM_SUBTYPE(ife->ifm_media));
-               break;
+       if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) {
+               dctl &= ~VGE_DIAGCTL_MACFORCE;
+               dctl &= ~VGE_DIAGCTL_FDXFORCE;
+       } else {
+               u_int ifmword;
+
+               /* If the link is up, use the current active media. */
+               if ((mii->mii_media_status & IFM_ACTIVE) != 0)
+                       ifmword = mii->mii_media_active;
+               else
+                       ifmword = ife->ifm_media;
+
+               dctl |= VGE_DIAGCTL_MACFORCE;
+               if ((ifmword & IFM_FDX) != 0)
+                       dctl |= VGE_DIAGCTL_FDXFORCE;
+               else
+                       dctl &= ~VGE_DIAGCTL_FDXFORCE;
+
+               if (IFM_SUBTYPE(ifmword) == IFM_1000_T) {
+                       /*
+                        * It means the user setting is not auto but it's
+                        * 1000baseT-FDX or 1000baseT.
+                        */
+                       dctl |= VGE_DIAGCTL_GMII;
+               } else
+                       dctl &= ~VGE_DIAGCTL_GMII;
        }
+
+       CSR_WRITE_1(sc, VGE_DIAGCTL, dctl);
 }
 
 static int