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 ...
M. Warner Losh
imp at bsdimp.com
Sun Apr 15 19:13:00 UTC 2007
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.
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