NEX-9808 SMB3 persistent handles
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
NEX-9808 SMB3 persistent handles
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
NEX-4239 smbtorture create failures re. allocation size
Reviewed by: Matt Barden <Matt.Barden@nexenta.com>
Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com>
NEX-2781 SMB2 credit handling needs work
SMB-50 User-mode SMB server
 Includes work by these authors:
 Thomas Keiser <thomas.keiser@nexenta.com>
 Albert Lee <trisk@nexenta.com>

*** 8,18 ****
   * source.  A copy of the CDDL is also available via the Internet at
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
!  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
   */
  
  
  #include <sys/types.h>
  #include <sys/time.h>
--- 8,18 ----
   * source.  A copy of the CDDL is also available via the Internet at
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
!  * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
   */
  
  
  #include <sys/types.h>
  #include <sys/time.h>
*** 80,85 ****
--- 80,130 ----
  
  /* ARGSUSED */
  void
  scalehrtime(hrtime_t *t)
  {
+ }
+ 
+ /*
+  * These functions are blatently stolen from the kernel.
+  * See the dissertation in the comments preceding the
+  * hrt2ts() and ts2hrt() functions in:
+  *      uts/common/os/timers.c
+  */
+ void
+ hrt2ts(hrtime_t hrt, timespec_t *tsp)
+ {
+         uint32_t sec, nsec, tmp;
+ 
+         tmp = (uint32_t)(hrt >> 30);
+         sec = tmp - (tmp >> 2);
+         sec = tmp - (sec >> 5);
+         sec = tmp + (sec >> 1);
+         sec = tmp - (sec >> 6) + 7;
+         sec = tmp - (sec >> 3);
+         sec = tmp + (sec >> 1);
+         sec = tmp + (sec >> 3);
+         sec = tmp + (sec >> 4);
+         tmp = (sec << 7) - sec - sec - sec;
+         tmp = (tmp << 7) - tmp - tmp - tmp;
+         tmp = (tmp << 7) - tmp - tmp - tmp;
+         nsec = (uint32_t)hrt - (tmp << 9);
+         while (nsec >= NANOSEC) {
+                 nsec -= NANOSEC;
+                 sec++;
+         }
+         tsp->tv_sec = (time_t)sec;
+         tsp->tv_nsec = nsec;
+ }
+ 
+ hrtime_t
+ ts2hrt(const timestruc_t *tsp)
+ {
+         hrtime_t hrt;
+ 
+         hrt = tsp->tv_sec;
+         hrt = (hrt << 7) - hrt - hrt - hrt;
+         hrt = (hrt << 7) - hrt - hrt - hrt;
+         hrt = (hrt << 7) - hrt - hrt - hrt;
+         hrt = (hrt << 9) + tsp->tv_nsec;
+         return (hrt);
  }