The following reply was made to PR kern/35579; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: 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/35579: re(4) has problems with multicast. IPv6 doesn't work
	 correctly.
Date: Fri, 9 Feb 2007 21:07:26 +0900

 ndehne@gmail.com wrote:
 
 > >Fix:
 > Yes, please.
 
 How about the attached patch (taken from FreeBSD)?
 ---
 Izumi Tsutsui
 
 
 Index: sys/dev/ic/rtl81x9.c
 ===================================================================
 RCS file: /cvsroot/src/sys/dev/ic/rtl81x9.c,v
 retrieving revision 1.68
 diff -u -r1.68 rtl81x9.c
 --- sys/dev/ic/rtl81x9.c	4 Feb 2007 06:01:30 -0000	1.68
 +++ sys/dev/ic/rtl81x9.c	9 Feb 2007 12:05:46 -0000
 @@ -539,7 +539,7 @@
  {
  	struct ifnet *ifp;
  	uint32_t hashes[2] = { 0, 0 };
 -	uint32_t rxfilt;
 +	uint32_t rxfilt, hwrev;
  	struct ether_multi *enm;
  	struct ether_multistep step;
  	int h, mcnt;
 @@ -587,8 +587,22 @@
  		rxfilt &= ~RTK_RXCFG_RX_MULTI;
  
  	CSR_WRITE_4(sc, RTK_RXCFG, rxfilt);
 -	CSR_WRITE_4(sc, RTK_MAR0, hashes[0]);
 -	CSR_WRITE_4(sc, RTK_MAR4, hashes[1]);
 +
 +	/*
 +	 * For some unfathomable reason, RealTek decided to reverse
 +	 * the order of the multicast hash registers in the PCI Express
 +	 * parts. This means we have to write the hash pattern in reverse
 +	 * order for those devices.
 +	 */
 +	hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV;
 +	if (hwrev == RTK_HWREV_8100E || hwrev == RTK_HWREV_8101E ||
 +	    hwrev == RTK_HWREV_8168_SPIN1 || hwrev == RTK_HWREV_8168_SPIN2) {
 +		CSR_WRITE_4(sc, RTK_MAR0, bswap32(hashes[1]));
 +		CSR_WRITE_4(sc, RTK_MAR4, bswap32(hashes[0]));
 +	} else {
 +		CSR_WRITE_4(sc, RTK_MAR0, hashes[0]);
 +		CSR_WRITE_4(sc, RTK_MAR4, hashes[1]);
 +	}
  }
  
  void