[parisc-linux] [patch 2/2] backport of sba sg list management to ccio-dma

[Kyle McMartin]

On Tue, Oct 16, 2007 at 04:34:08PM +0000, Joel Soete wrote:
> And here is the main hunk:
> 
> This consist of 'backporting' to ccio of the most of Grant's work on sg list
> management of sba-iommu.
> 
> According to some stress test on d380 it makes ncr driver more stable; 
> improve
> network perf on my d380 (from 110 to 430 kb/s);
> (would allow in a next step merge some hunk of sba code in iommu-helper.h)
> 

A long time ago (a couple months?) I merged large swaths of ccio and sba
code... unfortunately, it caused an almost measurable (~2-5%) loss of
performance on networking and scsi throughput...

I probably lost the code when my j6000 disk failed, but I'll probably
have another crack at it someday.

Anyway, the patch looks good, but it needs a bit of testing, so I think
we'll wait for 2.6.25 to merge it?

Regards,
	Kyle