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Date: Sat, 05 Nov 2005 17:33:17 -0700
From: Scott Long <scottl@samsco.org>
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To: Charles Sprickman <spork@fasttrackmonkey.com>
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Cc: hackers@freebsd.org
Subject: Re: twe and giant
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Charles Sprickman wrote:
> Hello all,
> 
> I was just wondering about this...  I recently bumped a soon-to-be 
> production box to 6.0 as it seems like upgrading now is easier than 
> doing it the week after the box goes into production (it's amazing how 
> the release engineering team knows to schedule this way...:).
> 
> One thing I noticed in reviewing the boot messages is that twe is still 
> under the giant lock:
> 
> twe0: <3ware Storage Controller. Driver version 1.50.01.002> port 
> 0x2860-0x286f mem 0xf4000000-0xf47fffff irq 17 at device 13.0 on pci0
> twe0: [GIANT-LOCKED]
> twe0: 4 ports, Firmware FE8S 1.05.00.068, BIOS BE7X 1.08.00.048
> 
> I bring this up because I could have sworn that I read here or elsewhere 
> that this driver was revamped.  I also could have sworn that at some 
> point in 5.x it was not under giant.  Maybe I'm imagining things...
> 
> Anyhow, does anyone know the status of this, and also is there a central 
> repository that tracks changes like this that I can watch?
> 
> Thanks,
> 
> Charles

I have some old patches that lock twe.  They aren't quite complete or 
right due to an edge case with DMA handling.  I'll probably dust them 
off and finish them soon.

Scott