Index: head/sysutils/smartmontools/files/patch-os__freebsd.cpp
===================================================================
--- head/sysutils/smartmontools/files/patch-os__freebsd.cpp	(revision 479195)
+++ head/sysutils/smartmontools/files/patch-os__freebsd.cpp	(revision 479196)
@@ -1,58 +1,58 @@
 --- os_freebsd.cpp.orig	2017-04-24 09:34:16.000000000 -0700
 +++ os_freebsd.cpp	2018-02-27 19:15:54.338861000 +0000
 @@ -16,6 +16,8 @@
   */
  
  #include <stdio.h>
 +#include <sys/endian.h>
 +#include <sys/param.h>
  #include <sys/types.h>
  #include <dirent.h>
  #include <fcntl.h>
 @@ -484,7 +486,7 @@
    	}
    	nsid = 0xFFFFFFFF; // broadcast id
    }
 -  else if (sscanf(dev, NVME_CTRLR_PREFIX"%d"NVME_NS_PREFIX"%d%c", 
 +  else if (sscanf(dev, NVME_CTRLR_PREFIX"%d" NVME_NS_PREFIX "%d%c", 
    	&ctrlid, &nsid, &tmp) == 2) 
    {
    	if(ctrlid < 0 || nsid < 0) {
 @@ -521,16 +523,20 @@
    struct nvme_pt_command pt;
    memset(&pt, 0, sizeof(pt));
  
-+#if __FreeBSD_version >= 1200058
++#if __FreeBSD_version >= 1200058 && __FreeBSD_version < 1200081
 +  pt.cmd.opc_fuse = NVME_CMD_SET_OPC(in.opcode);
 +#else
    pt.cmd.opc = in.opcode;
 +#endif
 -  pt.cmd.nsid = in.nsid;
 +  pt.cmd.nsid = htole32(in.nsid);
    pt.buf = in.buffer;
    pt.len = in.size;
 -  pt.cmd.cdw10 = in.cdw10;
 -  pt.cmd.cdw11 = in.cdw11;
 -  pt.cmd.cdw12 = in.cdw12;
 -  pt.cmd.cdw13 = in.cdw13;
 -  pt.cmd.cdw14 = in.cdw14;
 -  pt.cmd.cdw15 = in.cdw15;
 +  pt.cmd.cdw10 = htole32(in.cdw10);
 +  pt.cmd.cdw11 = htole32(in.cdw11);
 +  pt.cmd.cdw12 = htole32(in.cdw12);
 +  pt.cmd.cdw13 = htole32(in.cdw13);
 +  pt.cmd.cdw14 = htole32(in.cdw14);
 +  pt.cmd.cdw15 = htole32(in.cdw15);
    pt.is_read = 1; // should we use in.direction()?
    
    int status = ioctl(get_fd(), NVME_PASSTHROUGH_CMD, &pt);
 @@ -538,6 +544,9 @@
    if (status < 0)
      return set_err(errno, "NVME_PASSTHROUGH_CMD: %s", strerror(errno));
  
 +#if __FreeBSD_version >= 1200058
 +  nvme_completion_swapbytes(&pt.cpl);
 +#endif
    out.result=pt.cpl.cdw0; // Command specific result (DW0)
  
    if (nvme_completion_is_error(&pt.cpl))