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Date:      Wed, 18 Jan 2012 17:52:58 -0800
From:      YongHyeon PYUN <pyunyh@gmail.com>
To:        Michael Butler <imb@protected-networks.net>
Cc:        current@freebsd.org
Subject:   Re: Intermittent re0 phy failure
Message-ID:  <20120119015258.GF7469@michelle.cdnetworks.com>
In-Reply-To: <4F176B76.5010809@protected-networks.net>
References:  <4F174C4F.2010302@protected-networks.net> <20120119005457.GE7469@michelle.cdnetworks.com> <4F176B76.5010809@protected-networks.net>

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On Wed, Jan 18, 2012 at 08:01:42PM -0500, Michael Butler wrote:
> On 01/18/12 19:54, YongHyeon PYUN wrote:
> > On Wed, Jan 18, 2012 at 05:48:47PM -0500, Michael Butler wrote:
> >> At random intervals, when re0 is without any significant load; idle for
> >> lengthy periods, I see ..
> >>
> >> kernel: re0: PHY read failed
> >> last message repeated 4 times
> >> kernel: re0: link state changed to DOWN
> >>
> >> Unplugging the cable and re-inserting is sufficient to restore
> >> functionality.
> >>
> >> kernel is @ SVN r230276
> >>
> >> Any ideas how to track this down?
> > 
> > Knowing which kind of controller you have would be more helpful.
> > Show me both re(4)/rgephy(4) related message from dmesg and
> > 'devinfo -rv | grep rgephy' output.
> > 
> 
> As requested:
> 
> dmesg:
> 
> re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit Ethernet> port
> 0x2000-0x20ff mem 0xf0700000-0xf0700fff,0xf0200000-0xf0203fff irq 17 at
> device 0.0 on pci3
> re0: MSI count : 1
> re0: MSI-X count : 4
> re0: attempting to allocate 1 MSI-X vectors (4 supported)
> msi: routing MSI-X IRQ 257 to local APIC 0 vector 51
> re0: using IRQ 257 for MSI-X
> re0: Using 1 MSI-X message
> re0: ASPM disabled
> re0: Chip rev. 0x28000000
> re0: MAC rev. 0x00000000
> miibus0: <MII bus> on re0
> rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
> rgephy0: OUI 0x00e04c, model 0x0011, rev. 2
> rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
> 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master,
> 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow,
> 1000baseT-FDX-flow-master, auto, auto-flow
> 
> devinfo -rv | grep rgephy
>                 rgephy0 pnpinfo oui=0xe04c model=0x11 rev=0x2 at phyno=1
> 

Thanks a lot.
Would you try attached patch?

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Index: sys/dev/re/if_re.c
===================================================================
--- sys/dev/re/if_re.c	(revision 230315)
+++ sys/dev/re/if_re.c	(working copy)
@@ -1433,11 +1433,16 @@
 			sc->rl_flags |= RL_FLAG_MACSLEEP;
 		/* FALLTHROUGH */
 	case RL_HWREV_8168CP:
-	case RL_HWREV_8168D:
 		sc->rl_flags |= RL_FLAG_PHYWAKE | RL_FLAG_PAR |
 		    RL_FLAG_DESCV2 | RL_FLAG_MACSTAT | RL_FLAG_CMDSTOP |
 		    RL_FLAG_AUTOPAD | RL_FLAG_JUMBOV2 | RL_FLAG_WOL_MANLINK;
 		break;
+	case RL_HWREV_8168D:
+		sc->rl_flags |= RL_FLAG_PHYWAKE | RL_FLAG_PHYWAKE_PM |
+		    RL_FLAG_PAR | RL_FLAG_DESCV2 | RL_FLAG_MACSTAT |
+		    RL_FLAG_CMDSTOP | RL_FLAG_AUTOPAD | RL_FLAG_JUMBOV2 |
+		    RL_FLAG_WOL_MANLINK;
+		break;
 	case RL_HWREV_8168DP:
 		sc->rl_flags |= RL_FLAG_PHYWAKE | RL_FLAG_PAR |
 		    RL_FLAG_DESCV2 | RL_FLAG_MACSTAT | RL_FLAG_AUTOPAD |

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