imsm: provide a simulated option-rom for regression tests

IMSM_NO_PLATFORM turns off checks that should be tested, so provide a
IMSM_TEST_OROM variable to allow testing the orom constraints in the
mdadm regression suite.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

3 files changed, 156 insertions, 4 deletions

diff --git a/tests/09imsm-create-fail-rebuild b/tests/09imsm-create-fail-rebuild
new file mode 100644
index 0000000..8069576
--- /dev/null
+++ b/tests/09imsm-create-fail-rebuild
@@ -0,0 +1,56 @@
+# sanity check array creation
+
+num_disks=2
+mdadm -CR $container -e imsm -n $num_disks $dev0 $dev1
+imsm_check container $num_disks
+
+# RAID0 + RAID1
+size=10000
+level=0
+chunk=64
+offset=0
+mdadm -CR $member0 $dev0 $dev1 -n $num_disks -l $level -z $size -c $chunk
+imsm_check member $member0 $num_disks $level $size $offset $chunk
+testdev $member0 $num_disks $size $chunk
+
+offset=$(((size & ~(chunk - 1)) + 2048))
+size=5000
+level=1
+chunk=0
+mdadm -CR $member1 $dev0 $dev1 -n $num_disks -l $level -z $size
+imsm_check member $member1 $num_disks $level $size $offset $chunk
+testdev $member1 1 $size 1
+check wait
+
+mdadm -Ss
+
+# RAID10 + RAID5
+num_disks=4
+mdadm -CR $container -e imsm -n $num_disks $dev0 $dev1 $dev2 $dev3
+imsm_check container $num_disks
+
+size=10000
+level=10
+chunk=64
+offset=0
+mdadm -CR $member0 $dev0 $dev1 $dev2 $dev3 -n $num_disks -l $level -z $size -c $chunk
+imsm_check member $member0 $num_disks $level $size $offset $chunk
+testdev $member0 $((num_disks-2)) $size $chunk
+
+offset=$(((size & ~(chunk - 1)) + 2048))
+size=5000
+level=5
+mdadm -CR $member1 $dev0 $dev1 $dev2 $dev3 -n $num_disks -l $level -z $size -c $chunk
+imsm_check member $member1 $num_disks $level $size $offset $chunk
+testdev $member1 $((num_disks-1)) $size $chunk
+check wait
+
+# FAIL / REBUILD
+imsm_check_hold $container $dev0
+mdadm --fail $member0 $dev0
+mdadm --wait-clean --scan
+imsm_check_removal $container $dev0
+mdadm --add $container $dev4
+check wait
+imsm_check_hold $container $dev4
+
diff --git a/tests/env-08imsm-overlap b/tests/env-08imsm-overlap
index 98b5d63..83557d3 120000..100644
--- a/tests/env-08imsm-overlap
+++ b/tests/env-08imsm-overlap
@@ -1 +1,68 @@
-env-imsm
\ No newline at end of file
+imsm_check() {
+   case $1 in
+    container )
+      grep -s "$(((418 * $2)/2)) blocks super external:imsm" /proc/mdstat > /dev/null || {
+   		echo >&2 "ERROR correctly formed container not found"; cat /proc/mdstat; exit 1;}
+      ;;
+    member )
+      member=$2
+      num_disks=$3
+      level=$4
+      size=$5
+      offset=$6
+      err=0
+
+      eval `stat -L -c "let major=0x%t; let minor=0x%T;" $member`
+      sysfs=/sys/dev/block/${major}:${minor}
+      if [ ! -f ${sysfs}/md/array_state ]; then
+           echo "member array $member not found" >&2
+           cat /proc/mdstat >&2
+           exit 1
+      fi
+      for i in `seq 0 $((num_disks-1))`
+      do
+         _offset=`cat ${sysfs}/md/rd${i}/offset`
+         if [ $offset -ne $((_offset/2)) ]; then
+	    echo "offset mismatch expected $offset got $_offset" >&2
+            err=$((err+1))
+         fi
+         _size=`cat ${sysfs}/md/rd${i}/size`
+         if [ $size -ne $_size ]; then
+	    echo "offset mismatch expected $size got $_size" >&2
+            err=$((err+1))
+         fi
+      done
+
+      if [ $err -gt 0 ]; then
+          echo "$member failed check" >&2
+          cat /proc/mdstat >&2
+	  mdadm -E /dev/loop0 >&2
+          exit 1
+      fi
+      ;;
+    * ) echo >&2 ERROR unknown check $1 ; exit 1;
+   esac
+}
+
+setup_env() {
+	export IMSM_DEVNAME_AS_SERIAL=1
+	export IMSM_NO_PLATFORM=1
+	container=/dev/md/container
+	member0=/dev/md/vol0
+	member1=/dev/md/vol1
+	member2=/dev/md/vol2
+	member3=/dev/md/vol3
+	member4=/dev/md/vol4
+}
+
+reset_env() {
+	unset IMSM_DEVNAME_AS_SERIAL
+	unset IMSM_NO_PLATFORM
+	unset imsm_check
+	unset container
+	unset member0
+	unset member1
+	unset member2
+	unset member3
+	unset member4
+}
diff --git a/tests/env-imsm b/tests/env-09imsm-create-fail-rebuild
index 83557d3..2fc90ed 100644
--- a/tests/env-imsm
+++ b/tests/env-09imsm-create-fail-rebuild
@@ -1,3 +1,21 @@
+imsm_check_hold() {
+   if [ mdadm --remove $1 $2 -eq 0 ]; then
+       echo "$2 removal from $1 should have been blocked" >&2
+       cat /proc/mdstat >&2
+       mdadm -E $2
+       exit 1
+   fi
+}
+
+imsm_check_removal() {
+   if [ mdadm --remove $1 $2 -ne 0 ]; then
+       echo "$2 removal from $1 should have succeeded" >&2
+       cat /proc/mdstat >&2
+       mdadm -E $2
+       exit 1
+   fi
+}
+
 imsm_check() {
    case $1 in
     container )
@@ -10,8 +28,14 @@ imsm_check() {
       level=$4
       size=$5
       offset=$6
+      chunk=$7
       err=0
 
+      if [ $level -ne 1 ]; then
+         size=$((size & ~(chunk - 1)))
+      else
+         chunk=64
+      fi
       eval `stat -L -c "let major=0x%t; let minor=0x%T;" $member`
       sysfs=/sys/dev/block/${major}:${minor}
       if [ ! -f ${sysfs}/md/array_state ]; then
@@ -19,6 +43,11 @@ imsm_check() {
            cat /proc/mdstat >&2
            exit 1
       fi
+      _chunk=`cat ${sysfs}/md/chunk_size`
+      if [ $chunk -ne $((_chunk/1024)) ]; then
+         echo "chunk mismatch expected $chunk got $_chunk" >&2
+         err=$((err+1))
+      fi
       for i in `seq 0 $((num_disks-1))`
       do
          _offset=`cat ${sysfs}/md/rd${i}/offset`
@@ -28,7 +57,7 @@ imsm_check() {
          fi
          _size=`cat ${sysfs}/md/rd${i}/size`
          if [ $size -ne $_size ]; then
-	    echo "offset mismatch expected $size got $_size" >&2
+	    echo "size mismatch expected $size got $_size" >&2
             err=$((err+1))
          fi
       done
@@ -46,7 +75,7 @@ imsm_check() {
 
 setup_env() {
 	export IMSM_DEVNAME_AS_SERIAL=1
-	export IMSM_NO_PLATFORM=1
+	export IMSM_TEST_OROM=1
 	container=/dev/md/container
 	member0=/dev/md/vol0
 	member1=/dev/md/vol1
@@ -57,7 +86,7 @@ setup_env() {
 
 reset_env() {
 	unset IMSM_DEVNAME_AS_SERIAL
-	unset IMSM_NO_PLATFORM
+	unset IMSM_TEST_OROM
 	unset imsm_check
 	unset container
 	unset member0