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From: Xin LI <delphij@FreeBSD.org>
Date: Fri, 1 Apr 2005 12:44:03 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
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X-FreeBSD-CVS-Branch: RELENG_5
Subject: cvs commit: src/sys/cam cam_xpt.c
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delphij     2005-04-01 12:44:03 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_5)
    sys/cam              cam_xpt.c 
  Log:
  MFC revision 1.151 (gibbs):
    date: 2005/03/23 16:43:29;  author: gibbs;  state: Exp;  lines: +13 -2
    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.
  
  Approved by:    re (scottl)
  
  Revision   Changes    Path
  1.142.2.4  +13 -2     src/sys/cam/cam_xpt.c