cvs commit: src/sys/cam cam_ccb.h cam_periph.c cam_periph.h cam_sim.c cam_sim.h cam_xpt.c cam_xpt.h cam_xpt_periph.h src/sys/cam/scsi scsi_cd.c scsi_ch.c scsi_da.c scsi_low.c scsi_pass.c scsi_pt.c scsi_sa.c scsi_ses.c scsi_sg.c ...

[Scott Long]

Rong-en Fan wrote:
> On 4/16/07, M. Warner Losh <imp at bsdimp.com> wrote:
>> In message: <20070415105711.T84174 at fledge.watson.org>
>>             Robert Watson <rwatson at FreeBSD.org> writes:
>> : On Sun, 15 Apr 2007, Scott Long wrote:
>> :
>> : >  Remove Giant from CAM.  Drivers (SIMs) now register a mutex that 
>> CAM will
>> : >  use to synchornize and protect all data objects that are used for 
>> that
>> : >  SIM.  Drivers that are not yet MPSAFE register Giant and operate as
>> : >  usual.  RIght now, no drivers are MPSAFE, though a few will be 
>> changed
>> : >  in the coming week as this work settles down.
>> : >
>> : >  The driver API has changed, so all CAM drivers will need to be 
>> recompiled.
>> : >  The userland API has not changed, so tools like camcontrol do not 
>> need to
>> : >  be recompiled.
>> :
>> : Excellent.  This was one of the few remaining serious pieces of 
>> non-MPSAFE
>> : infrastructure in the kernel.  Thanks greatly for doing this work!
>>
>> Now all the scsi ethernet drivers that were threatened with MPSAFE
>> removal can continue on in the tree.  Way cool.
> 
> Shall we update the wiki SMPTODO page?
> 
> Regards,
> Rong-En Fan
> 
> 

I'll handle this when I get a chance.

Scott