>Number: 165509
>Category: kern
>Synopsis: re(4) intermittently UP/DOWN on TPLink TG-3268
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Feb 27 22:00:32 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Nugroho Atmotaruno
>Release: FreeBSD 9.0 -RELEASE
>Organization:
ARC ITB
>Environment:
FreeBSD 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012
r...@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
TPLink TG-3268 (rl8169) flapping (UP/DOWN every several seconds).
[root@xtreme ~]# tail /var/log/messages
Feb 23 04:47:05 xtreme kernel: re0: link state changed to UP
Feb 23 04:47:07 xtreme kernel: re0: link state changed to DOWN
Feb 23 04:47:10 xtreme kernel: re0: link state changed to UP
Feb 23 04:47:16 xtreme kernel: re0: link state changed to DOWN
Feb 23 04:47:19 xtreme kernel: re0: link state changed to UP
Feb 23 04:47:20 xtreme kernel: re0: link state changed to DOWN
Feb 23 04:47:23 xtreme kernel: re0: link state changed to UP
Feb 23 04:48:44 xtreme kernel: re0: link state changed to DOWN
Feb 23 04:48:47 xtreme kernel: re0: link state changed to UP
[root@xtreme ~]# pciconf -lcv
re0@pci0:2:5:0: class=0x020000 card=0x816910ec chip=0x816910ec rev=0x10 hdr=0x00
vendor = 'Realtek Semiconductor Co., Ltd.'
device = 'RTL-8169 Gigabit Ethernet'
class = network
subclass = ethernet
cap 01[dc] = powerspec 2 supports D0 D1 D2 D3 current D0
[root@xtreme ~]# devinfo -rv | grep rg
rgephy0 pnpinfo oui=0xe04c model=0x11 rev=0x3 at phyno=1
>How-To-Repeat:
>Fix:
YongHyeon PYUN sent following patch.
Patch attached with submission follows:
Index: sys/dev/mii/rgephy.c
===================================================================
--- sys/dev/mii/rgephy.c (revision 232144)
+++ sys/dev/mii/rgephy.c (working copy)
@@ -110,11 +110,16 @@
rgephy_attach(device_t dev)
{
struct mii_softc *sc;
+ struct mii_attach_args *ma;
+ u_int flags;
sc = device_get_softc(dev);
+ ma = device_get_ivars(dev);
+ flags = 0;
+ if (strcmp(ma->mii_data->mii_ifp->if_dname, "re") == 0)
+ flags |= MIIF_PHYPRIV0;
+ mii_phy_dev_attach(dev, flags, &rgephy_funcs, 0);
- mii_phy_dev_attach(dev, 0, &rgephy_funcs, 0);
-
/* RTL8169S do not report auto-sense; add manually. */
sc->mii_capabilities = (PHY_READ(sc, MII_BMSR) | BMSR_ANEG) &
sc->mii_capmask;
@@ -243,7 +248,8 @@
* Check to see if we have link. If we do, we don't
* need to restart the autonegotiation process.
*/
- if (sc->mii_mpd_rev >= 2) {
+ if ((sc->mii_flags & MIIF_PHYPRIV0) == 0 &&
+ sc->mii_mpd_rev >= 2) {
/* RTL8211B(L) */
reg = PHY_READ(sc, RGEPHY_MII_SSR);
if (reg & RGEPHY_SSR_LINK) {
@@ -298,7 +304,7 @@
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
- if (sc->mii_mpd_rev >= 2) {
+ if ((sc->mii_flags & MIIF_PHYPRIV0) == 0 && sc->mii_mpd_rev >= 2) {
ssr = PHY_READ(sc, RGEPHY_MII_SSR);
if (ssr & RGEPHY_SSR_LINK)
mii->mii_media_status |= IFM_ACTIVE;
@@ -328,7 +334,7 @@
}
}
- if (sc->mii_mpd_rev >= 2) {
+ if ((sc->mii_flags & MIIF_PHYPRIV0) == 0 && sc->mii_mpd_rev >= 2) {
ssr = PHY_READ(sc, RGEPHY_MII_SSR);
switch (ssr & RGEPHY_SSR_SPD_MASK) {
case RGEPHY_SSR_S1000:
@@ -484,7 +490,7 @@
{
uint16_t ssr;
- if (sc->mii_mpd_rev == 3) {
+ if ((sc->mii_flags & MIIF_PHYPRIV0) == 0 && sc->mii_mpd_rev == 3) {
/* RTL8211C(L) */
ssr = PHY_READ(sc, RGEPHY_MII_SSR);
if ((ssr & RGEPHY_SSR_ALDPS) != 0) {
Index: sys/dev/re/if_re.c
===================================================================
--- sys/dev/re/if_re.c (revision 232145)
+++ sys/dev/re/if_re.c (working copy)
@@ -1577,19 +1577,6 @@
re_gmii_writereg(dev, 1, 0x0e, 0);
}
-#define RE_PHYAD_INTERNAL 0
-
- /* Do MII setup. */
- phy = RE_PHYAD_INTERNAL;
- if (sc->rl_type == RL_8169)
- phy = 1;
- error = mii_attach(dev, &sc->rl_miibus, ifp, re_ifmedia_upd,
- re_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, MIIF_DOPAUSE);
- if (error != 0) {
- device_printf(dev, "attaching PHYs failed\n");
- goto fail;
- }
-
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
@@ -1614,6 +1601,19 @@
TASK_INIT(&sc->rl_inttask, 0, re_int_task, sc);
+#define RE_PHYAD_INTERNAL 0
+
+ /* Do MII setup. */
+ phy = RE_PHYAD_INTERNAL;
+ if (sc->rl_type == RL_8169)
+ phy = 1;
+ error = mii_attach(dev, &sc->rl_miibus, ifp, re_ifmedia_upd,
+ re_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, MIIF_DOPAUSE);
+ if (error != 0) {
+ device_printf(dev, "attaching PHYs failed\n");
+ goto fail;
+ }
+
/*
* Call MI attach routine.
*/
>Release-Note:
>Audit-Trail:
>Unformatted:
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