Date: Wed, 23 Mar 2005 16:43:29 +0000 (UTC) From: "Justin T. Gibbs" <gibbs@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/cam cam_xpt.c Message-ID: <200503231643.j2NGhT7i055189@repoman.freebsd.org>
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gibbs 2005-03-23 16:43:29 UTC
FreeBSD src repository
Modified files:
sys/cam cam_xpt.c
Log:
Restore queue depth settings across tag disable events. The system often
disables tag queuing temporarily in order to allow controllers a window
to safely perform transfer negotiation with non-compliant devices. Before
this change, CAM would restore the queue depth to the controller specified
maximum or device quirk level rather than any depth determined by reactions
to QUEUE FULL/BUSY events or an explicit user setting.
During device probe, initialize the flags field for XPT_SCAN_BUS.
The uninitialized value often confused CAM into not bothering to
issue an AC_FOUND_DEVICE async event for new devices. The reason
this bug wasn't reported earlier is that CAM manually announces
devices after the initial system bus scans.
MFC: 3 days
Revision Changes Path
1.151 +13 -2 src/sys/cam/cam_xpt.c
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