From: "Allen Curtis" <acurtis@onz.com>
To: "Jean-Denis Boyer" <jdboyer@mediatrix.com>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Subject: RE: Poor 8260 FCC Ethernet performance
Date: Thu, 30 May 2002 20:42:31 -0700 [thread overview]
Message-ID: <NCBBIINEHIPFGJPLBEIFCEOADHAA.acurtis@onz.com> (raw)
In-Reply-To: <F1BED55F35F4D3118C0F00E0295CFF4DFFA04F@mail.mediatrix.com>
> The 8260 Ethernet controller needs to know about the duplex mode in which
> the PHY operates. The driver sets it to half duplex by default, and needs
> the feed back of the PHY to set it to full duplex.
>
> As you may know, the hub always operates in half duplex, while the switch
> usually operates in full duplex, if it is directly connected to your unit,
> and your PHY accepts to negociate to full duplex.
>
Yes, the source code has been modified to force full-duplex.
(fcc_restart(dev,1) if I remember correctly :) In fact, before this change
was made Ethernet communications did not work at all. (At least it would not
get past bootp) I searched for something that looked like it was speed
related but found nothing. (Other than the MII reporting)
Other ideas?
BTW: We are using a BCM switch for our PHY. The interface to the processor
is always full-duplex, 100BT regardless of the external connections. Hence
the no MII PHY option.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-05-31 3:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-31 3:25 Poor 8260 FCC Ethernet performance Jean-Denis Boyer
2002-05-31 3:42 ` Allen Curtis [this message]
2002-05-31 15:51 ` Conn Clark
2002-06-01 3:09 ` Allen Curtis
-- strict thread matches above, loose matches on Subject: below --
2004-06-10 19:26 Rune Torgersen
2004-06-09 22:33 Rune Torgersen
2004-06-10 17:56 ` Dan Malek
2004-06-09 22:19 Rune Torgersen
2004-06-09 22:27 ` Gary Thomas
2004-06-07 17:33 VanBaren, Gerald (AGRE)
2004-06-08 6:29 ` Wojciech Kromer
2004-06-07 12:32 Dayton, Dean
2004-06-07 12:14 Dayton, Dean
2004-06-07 12:16 ` Pantelis Antoniou
2004-06-06 18:00 Adisorn Ermongkonchai
2004-06-07 12:51 ` Mark Chambers
2004-06-07 17:21 ` Adisorn Ermongkonchai
2002-05-31 3:07 Allen Curtis
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