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From: Gerald Champagne <gerald.champagne@esstech.com>
To: Jun Sun <jsun@mvista.com>, linux-mips@oss.sgi.com
Subject: Re: ide dma in latest cvs
Date: Tue, 22 Jan 2002 14:03:45 -0600	[thread overview]
Message-ID: <3C4DC5A1.3080105@esstech.com> (raw)
In-Reply-To: 3C4DB6DA.7F3E7386@mvista.com

> Did you check what the address is and why it is zero?  It seems to me this
> might be key ...


I see what the address is and why it's set to zero.  The address is the
address of a block of data to be transferred using dma, and it's set to
zero because the new interface in blk_rq_map_sg() passes parameters in a
page field instead an address field.  It looks like this is part of the
bio changes for 2.5 that work for x86 but haven't been updated for Mips.

I figured that someone else must have run into this and it sounds like
someone did.  I'll try what Vivien Chappelier recommended in his response.

Thanks.

Gerald

      reply	other threads:[~2002-01-22 20:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-01-21 23:48 ide dma in latest cvs Gerald Champagne
2002-01-22 11:33 ` Vivien Chappelier
2002-01-22 19:00 ` Jun Sun
2002-01-22 20:03   ` Gerald Champagne [this message]

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