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 ...
scottl at samsco.org
Sun Apr 15 22:09:28 UTC 2007
On Sun, 15 Apr 2007, M. Warner Losh 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.
> P.S. :-)
One of us didn't have enough coffee this morning ;-)
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