Date: Mon, 5 Jun 2006 22:22:14 +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_ccb.h cam_xpt.c Message-ID: <200606052222.k55MMEO0061757@repoman.freebsd.org>
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mjacob 2006-06-05 22:22:14 UTC
FreeBSD src repository
Modified files:
sys/cam cam_ccb.h cam_xpt.c
Log:
Add PIM_SEQSCAN for HBA misc flags and code that understands
what to do with it.
This forces us to scan targets sequentially, not in parallel.
The reason we might want to do this is that SPI negotiation
might not work right at the SIM level if we try to do it
in parallel. We *could* fix this for each SIM where this is
broken, but it's a lot harder to do that when we can simply
ask CAM to probe sequentially.
If PIM_SEQSCAN is not set (default), the original behaviour for
probing is unchanged.
LUN probing is still done in parallel for each target in either
case.
While we're at it, clean up some resource leakage for error
cases.
Reviewed by: ken, scott, scsi@
MFC after: 1 week
Revision Changes Path
1.32 +2 -1 src/sys/cam/cam_ccb.h
1.160 +79 -32 src/sys/cam/cam_xpt.c
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