Smartctl is broken on netbsd/sparc64 (BE) arch

[Alex Samorukov]

To test if smartctl still works on be i installed NetBSD7.0/sparc64 in the qemu.

It was found that smart support is mostly broken.

bash-4.4# uname -a
NetBSD netbsd 7.0 NetBSD 7.0 (GENERIC.201509250726Z) sparc64

bash-4.4# ./smartctl -d ata /dev/wd0c -A
smartctl 6.7 2017-11-16 r4625 [NetBSD 7.0 sparc64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

Read SMART Data failed: request failed, error code 0x02

=== START OF READ SMART DATA SECTION ===
bash-4.4# ./smartctl -d ata /dev/wd0c -Ai
smartctl 6.7 2017-11-16 r4625 [NetBSD 7.0 sparc64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     QEMU HARDDISK
Serial Number:    QM00001
Firmware Version: 2.5+
User Capacity:    5,368,709,120 bytes [5.36 GB]
Sector Size:      512 bytes logical/physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ATA/ATAPI-7, ATA/ATAPI-5 published, ANSI NCITS 340-2000
Local Time is:    Sun Nov 19 10:35:54 2017 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

Read SMART Data failed: request failed, error code 0x02

=== START OF READ SMART DATA SECTION ===

At the same time native tool works correctly:

bash-4.4# atactl wd0 smart status
SMART supported, SMART enabled
id value thresh crit collect reliability description                 raw
  1 100    6     yes online  positive    Raw read error rate         0
  3 100    0     yes online  positive    Spin-up time                16
  4 100   20     no  online  positive    Start/stop count            100
  5 100   36     yes online  positive    Reallocated sector count    0
  9 100    0     yes online  positive    Power-on hours count        1
 12 100    0     yes online  positive    Device power cycle count    0
190  69   50     yes online  positive    Airflow Temperature         31 Lifetime min/max 31/0

Todo: install NetBSD 7.0 intel to check if bug is BE/sparc specific, check atactl code for the hints.