cvs commit: src/sys/cam cam_ccb.h cam_periph.c cam_periph.h
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
scottl at samsco.org
Sun Apr 15 23:12:38 UTC 2007
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
>> : > SIM. Drivers that are not yet MPSAFE register Giant and operate as
>> : > usual. RIght now, no drivers are MPSAFE, though a few will be
>> : > in the coming week as this work settles down.
>> : >
>> : > The driver API has changed, so all CAM drivers will need to be
>> : > 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
>> : 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?
> Rong-En Fan
I'll handle this when I get a chance.
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