OS-61 Need ability for fault injection in mptsas
OS-62 slow io error detector is needed.

*** 19,28 ****
--- 19,30 ----
   * CDDL HEADER END
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  *
+  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
   */
  
  #ifndef _SYS_SCSI_SCSI_PKT_H
  #define _SYS_SCSI_SCSI_PKT_H
  
*** 104,113 ****
--- 106,117 ----
          /* private: iff scsi_pkt_allocated_correctly() */
          int     pkt_path_instance;      /* pHCI transport path */
  
          /* stage-temporary: iff scsi_pkt_allocated_correctly() */
          void    *pkt_stmp;              /* temporary for current pkt stage */
+         hrtime_t pkt_start;
+         hrtime_t pkt_stop;
  
  #ifdef  SCSI_SIZE_CLEAN_VERIFY
          /*
           * Must be last: Building a driver with-and-without
           * -DSCSI_SIZE_CLEAN_VERIFY, and checking driver modules for
*** 181,190 ****
--- 185,198 ----
   */
  #define FLAG_NOQUEUE            0x80000000
  #define FLAG_PKT_PATH_INSTANCE  0x40000000      /* Tell vhci the path to use */
  #define FLAG_PKT_COMP_CALLED    0x20000000      /* Set once pkt_comp called */
  
+ /* Extended flags. */
+ #define FLAG_PKT_BUSY           0x04000000      /* Reject packet immediately. */
+ #define FLAG_PKT_TIMEOUT        0x08000000      /* Timed-out packet. */
+ 
  /*
   * Definitions for the pkt_reason field.
   */
  
  /*