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Re: [Qemu-devel] [PATCH 1/2] LSI53C895A: Remove current_dma_len hack

From: Chris Wright
Subject: Re: [Qemu-devel] [PATCH 1/2] LSI53C895A: Remove current_dma_len hack
Date: Tue, 2 Dec 2008 13:50:11 -0800
User-agent: Mutt/1.5.18 (2008-05-17)

* Ryan Harper (address@hidden) wrote:
> * Justin Chevrier <address@hidden> [2008-12-02 10:00]:
> > I've sorted out the problem with Openserver that this hack covered up. As 
> > such this hack can be removed. It currently is causing boot problems with 
> > Debian ARM and Windows XP SP3.

And x86 Linux as well...

> > Changelog:
> > 
> > Remove current_dma_len update hack
> > 
> > Signed-off-by: Justin Chevrier <address@hidden>
> Acked-by: Ryan Harper <address@hidden>


Came to the same conclusion last night:

 Reverting the single line (essentially the primary purpose of the
 original change):

        s->current_dma_len = s->dbc;

 Is enough to get my Linux guests working again.

  lsi_scsi: SCRIPTS dsp=f2002210 opcode 90080000 arg 00000000
  lsi_scsi: Return to 0xf20027e8
  lsi_scsi: SCRIPTS dsp=f20027e8 opcode 11000000 arg 00000350
 -lsi_scsi: DMA addr=0x000000001e0b8000 len=16
 +lsi_scsi: DMA addr=0x000000001e0b0000 len=4096


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