The following reply was made to PR kern/34109; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: jmmv@NetBSD.org, gnats-bugs@NetBSD.org
Cc: kern-bug-people@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: kern/34109  vr(4) is painfully slow with the new rlphy(4)
Date: Sun, 18 Mar 2007 14:31:25 +0900

 - Could you please show "ifconfig vr0" output during slowness?
 - Does it work if you set "ifconfig vr0 media 10baseT" manually?
 - If it works, what happens once after "ifconfig vr0 media auto" again?
 
 With some quick tests on my 8139 cards, rlphy on RTK8139
 doesn't set BMCR_AUTOEN after reset but some of them set BMCR_FDX.
 If that is the problem, could you try the attached patch?
 ---
 Izumi Tsutsui
 
 
 Index: rlphy.c
 ===================================================================
 RCS file: /cvsroot/src/sys/dev/mii/rlphy.c,v
 retrieving revision 1.12
 diff -u -r1.12 rlphy.c
 --- rlphy.c	16 Nov 2006 01:33:06 -0000	1.12
 +++ rlphy.c	18 Mar 2007 05:15:57 -0000
 @@ -65,8 +65,10 @@
  int	rlphy_service(struct mii_softc *, struct mii_data *, int);
  void	rlphy_status(struct mii_softc *);
  
 +static void rlphy_reset(struct mii_softc *);
 +
  const struct mii_phy_funcs rlphy_funcs = {
 -	rlphy_service, rlphy_status, mii_phy_reset,
 +	rlphy_service, rlphy_status, rlphy_reset,
  };
  
  static const struct mii_phydesc rlphys[] = {
 @@ -331,3 +333,16 @@
  	} else
  		mii->mii_media_active = ife->ifm_media;
  }
 +
 +static void
 +rlphy_reset(struct mii_softc *sc)
 +{
 +
 +	mii_phy_reset(sc);
 +
 +	/*
 +	 * XXX RealTek PHY doesn't set the BMCR properly after
 +	 * XXX reset, which breaks autonegotiation.
 +	 */
 +	PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN);
 +}