1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or https://opensource.org/licenses/CDDL-1.0.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2016, loli10K. All rights reserved.
25# Copyright (c) 2017 Datto Inc.
26#
27
28. $STF_SUITE/include/libtest.shlib
29. $STF_SUITE/tests/functional/cli_root/zpool_create/zpool_create.shlib
30
31#
32# DESCRIPTION:
33#	'zpool create -o ashift=<n> ...' should work with different ashift
34#	values.
35#
36# STRATEGY:
37#	1. Create various pools with different ashift values.
38#	2. Verify -o ashift=<n> works only with allowed values (9-16).
39#	   Also verify that the lowest number of uberblocks in a label is 16 and
40#	   smallest uberblock size is 8K even with higher ashift values.
41#
42
43verify_runnable "global"
44
45function cleanup
46{
47	poolexists $TESTPOOL && destroy_pool $TESTPOOL
48	rm -f $disk
49}
50
51#
52# Fill the uberblock ring in every <device> label: we do this by committing
53# TXGs to the provided <pool> until every slot contains a valid uberblock.
54# NOTE: We use 'zpool sync' here because we can't force it via sync(1) like on
55# illumos
56#
57function write_device_uberblocks # <device> <pool>
58{
59	typeset device=$1
60	typeset pool=$2
61
62	while zdb -quuul $device | grep -q 'invalid'; do
63		sync_pool $pool true
64	done
65}
66
67#
68# Verify every label on <device> contains <count> (valid) uberblocks
69#
70function verify_device_uberblocks # <device> <count>
71{
72	typeset device=$1
73	typeset ubcount=$2
74
75	zdb -quuul $device | awk -v ubcount=$ubcount '
76	    /Uberblock/ && ! /invalid/ { uberblocks[$0]++ }
77	    END {
78	        count = 0
79	        for (i in uberblocks) {
80	            if (uberblocks[i] != 4) {
81	                printf "%s count: %s != 4\n", i, uberblocks[i]
82	                exit 1
83	            }
84	            count++;
85	        }
86	        if (count != ubcount) {
87	            printf "Total uberblock count: %s != %s\n", count, ubcount
88	            exit 1
89	        }
90	    }'
91}
92
93log_assert "zpool create -o ashift=<n>' works with different ashift values"
94log_onexit cleanup
95
96disk=$(create_blockfile $SIZE)
97
98typeset ashifts=("9" "10" "11" "12" "13" "14" "15" "16")
99# since Illumos 4958 the largest uberblock is 8K so we have at least of 16/label
100typeset ubcount=("128" "128" "64" "32" "16" "16" "16" "16")
101typeset -i i=0;
102while [ $i -lt "${#ashifts[@]}" ]
103do
104	typeset ashift=${ashifts[$i]}
105	log_must zpool create -o ashift=$ashift $TESTPOOL $disk
106	typeset pprop=$(get_pool_prop ashift $TESTPOOL)
107	verify_ashift $disk $ashift
108	if [[ $? -ne 0 || "$pprop" != "$ashift" ]]
109	then
110		log_fail "Pool was created without setting ashift value to "\
111		    "$ashift (current = $pprop)"
112	fi
113	write_device_uberblocks $disk $TESTPOOL
114	log_must verify_device_uberblocks $disk ${ubcount[$i]}
115
116	# clean things for the next run
117	log_must zpool destroy $TESTPOOL
118	log_must zpool labelclear $disk
119	log_must verify_device_uberblocks $disk 0
120	((i = i + 1))
121done
122
123typeset badvals=("off" "on" "1" "8" "17" "1b" "ff" "-")
124for badval in ${badvals[@]}
125do
126	log_mustnot zpool create -o ashift="$badval" $TESTPOOL $disk
127done
128
129log_pass "zpool create -o ashift=<n>' works with different ashift values"
130