From: Keith Owens <kaos@ocs.com.au>
To: Ion Badulescu <ionut@cs.columbia.edu>
Cc: Jeff Garzik <jgarzik@mandrakesoft.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Proper perfect filter setup for xircom_tulip_cb.c
Date: Wed, 06 Jun 2001 15:55:34 +1000 [thread overview]
Message-ID: <29308.991806934@kao2.melbourne.sgi.com> (raw)
In-Reply-To: Your message of "Tue, 05 Jun 2001 22:34:05 MST." <Pine.LNX.4.33.0106052225290.22593-100000@age.cs.columbia.edu>
On Tue, 5 Jun 2001 22:34:05 -0700 (PDT),
Ion Badulescu <ionut@cs.columbia.edu> wrote:
>The reason some CardBus Xircom cards need to be put in promisc mode in
>order to receive packets is because the driver doesn't initialize the
>perfect filter correctly. Although it uses a single Tx descriptor to send
>the initialization data to the card, it doesn't set either of the
>first_segment or last_segment bits in the descriptor. No wonder the
>chipset gets confused...
Nicely spotted. The X3201-3 Software Specification says nothing about
the segment bits for the filter, instead the information is tucked away
in the 21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller Hardware
Reference Manual. So Xircom have a software specification manual that
does not include the full software spec, oh the horrors.
next prev parent reply other threads:[~2001-06-06 5:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-06 5:34 Ion Badulescu
2001-06-06 5:55 ` Keith Owens [this message]
2001-06-06 6:28 ` Ion Badulescu
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