twe and giant

Scott Long scottl at
Sun Nov 6 00:33:23 GMT 2005

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> port 
> 0x2860-0x286f mem 0xf4000000-0xf47fffff irq 17 at device 13.0 on pci0
> twe0: [GIANT-LOCKED]
> twe0: 4 ports, Firmware FE8S, BIOS BE7X
> 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.


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