lkml.org 
[lkml]   [2007]   [Sep]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] pata_it821x: fix lost interrupt with atapi devices
On Mon, Sep 17, 2007 at 07:00:03AM +0200, Tejun Heo wrote:
> I wonder whether we should be using similar check in generic path too.
> We have quite a few cases where MWDMA ATAPI devices choking on commands
> with small transfer sizes. I don't think we'll experience significant
> performance regression with this applied and even if there is some, it's
> far better to have slightly slower working device.
>
> What do you guys think?

I think to start with someone should fix the ATAPI state machine. Stick
a BUG() in the driver if dma start is called when the atapi command data
size is zero

Alan

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-09-18 11:11    [W:0.830 / U:0.864 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site