Date: Sun, 1 Oct 2006 20:23:51 +0000 (UTC) From: Matt Jacob <mjacob@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/cam cam_periph.c Message-ID: <200610012023.k91KNp51077081@repoman.freebsd.org>
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mjacob 2006-10-01 20:23:51 UTC
FreeBSD src repository
Modified files:
sys/cam cam_periph.c
Log:
Put a bit of hysteresis into both BUSY SCSI status returns
and CAM_RESRC_UNAVAIL returns. Delay a tunable amount for
either between retries.
This came up because the MPT IOC was returning "IOC out of
resources" for some user and this caused a CAM_RESRC_UNAVAIL
return. Putting a bit of delay between retries helped them
out.
There was some discussion that an async event should be used
to clear CAM_RESRC_UNAVAIL. That's probably a better notion
eventually.
Reviewed by: scsi@freebsd.org (ade, scott)
MFC after: 1 week
Revision Changes Path
1.63 +20 -4 src/sys/cam/cam_periph.c
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