@@ -9,7 +9,8 @@ TESTS =\
create.sh \
clear.sh \
dax-errors.sh \
- daxdev-errors.sh
+ daxdev-errors.sh \
+ btt-check.sh
check_PROGRAMS =\
libndctl \
new file mode 100755
@@ -0,0 +1,172 @@
+#!/bin/bash -E
+
+[ -f "../ndctl/ndctl" ] && [ -x "../ndctl/ndctl" ] && ndctl="../ndctl/ndctl"
+[ -f "./ndctl/ndctl" ] && [ -x "./ndctl/ndctl" ] && ndctl="./ndctl/ndctl"
+[ -z "$ndctl" ] && echo "Couldn't find an ndctl binary" && exit 1
+bus="nfit_test.0"
+json2var="s/[{}\",]//g; s/:/=/g"
+dev=""
+mode=""
+size=""
+sector_size=""
+blockdev=""
+bs=4096
+rc=77
+
+trap 'err $LINENO' ERR
+
+# sample json:
+# {
+# "dev":"namespace5.0",
+# "mode":"sector",
+# "size":32440320,
+# "uuid":"51805176-e124-4635-ae17-0e6a4a16671a",
+# "sector_size":4096,
+# "blockdev":"pmem5s"
+# }
+
+# $1: Line number
+# $2: exit code
+err()
+{
+ [ -n "$2" ] && rc="$2"
+ echo "test/btt-check: failed at line $1"
+ exit "$rc"
+}
+
+create()
+{
+ json=$($ndctl create-namespace -b "$bus" -t pmem -m sector)
+ eval "$(echo "$json" | sed -e "$json2var")"
+ [ -n "$dev" ] || err "$LINENO" 2
+ [ "$mode" = "sector" ] || err "$LINENO" 2
+ [ -n "$size" ] || err "$LINENO" 2
+ [ -n "$sector_size" ] || err "$LINENO" 2
+ [ -n "$blockdev" ] || err "$LINENO" 2
+ [ $size -gt 0 ] || err "$LINENO" 2
+}
+
+reset()
+{
+ $ndctl disable-region -b "$bus" all
+ $ndctl zero-labels -b "$bus" all
+ $ndctl enable-region -b "$bus" all
+}
+
+# re-enable the BTT namespace, and do IO to it in an attempt to
+# verify it still comes up ok, and functions as expected
+post_repair_test()
+{
+ echo "${FUNCNAME[0]}: I/O to BTT namespace"
+ test -b /dev/$blockdev
+ dd if=/dev/urandom of=test-bin bs=$sector_size count=$((size/sector_size)) > /dev/null 2>&1
+ dd if=test-bin of=/dev/$blockdev bs=$sector_size count=$((size/sector_size)) > /dev/null 2>&1
+ dd if=/dev/$blockdev of=test-bin-read bs=$sector_size count=$((size/sector_size)) > /dev/null 2>&1
+ diff test-bin test-bin-read
+ rm -f test-bin*
+ echo "done"
+}
+
+test_normal()
+{
+ echo "=== ${FUNCNAME[0]} ==="
+ # disable the namespace
+ $ndctl disable-namespace $dev
+ $ndctl check-namespace $dev
+ $ndctl enable-namespace $dev
+ post_repair_test
+}
+
+test_force()
+{
+ echo "=== ${FUNCNAME[0]} ==="
+ $ndctl check-namespace --force $dev
+ post_repair_test
+}
+
+set_raw()
+{
+ $ndctl disable-namespace $dev
+ echo -n "set raw_mode: "
+ echo 1 | tee /sys/bus/nd/devices/$dev/force_raw
+ $ndctl enable-namespace $dev
+ raw_bdev="${blockdev%%s}"
+ test -b /dev/$raw_bdev
+ raw_size="$(cat /sys/bus/nd/devices/$dev/size)"
+}
+
+unset_raw()
+{
+ $ndctl disable-namespace $dev
+ echo -n "set raw_mode: "
+ echo 0 | tee /sys/bus/nd/devices/$dev/force_raw
+ $ndctl enable-namespace $dev
+ raw_bdev=""
+}
+
+test_bad_info2()
+{
+ echo "=== ${FUNCNAME[0]} ==="
+ set_raw
+ seek="$((raw_size/bs - 1))"
+ echo "wiping info2 block (offset = $seek blocks)"
+ dd if=/dev/zero of=/dev/$raw_bdev bs=$bs count=1 seek=$seek
+ unset_raw
+ $ndctl disable-namespace $dev
+ $ndctl check-namespace $dev 2>&1 | grep "info2 needs to be restored"
+ $ndctl check-namespace --repair $dev
+ $ndctl enable-namespace $dev
+ post_repair_test
+}
+
+test_bad_info()
+{
+ echo "=== ${FUNCNAME[0]} ==="
+ set_raw
+ echo "wiping info block"
+ dd if=/dev/zero of=/dev/$raw_bdev bs=$bs count=1 seek=1
+ unset_raw
+ $ndctl disable-namespace $dev
+ $ndctl check-namespace $dev 2>&1 | grep "info block at offset 0x1000 needs to be restored"
+ $ndctl check-namespace --repair $dev
+ $ndctl enable-namespace $dev
+ post_repair_test
+}
+
+test_bitmap()
+{
+ echo "=== ${FUNCNAME[0]} ==="
+ reset && create
+ set_raw
+ # scribble over the last 4K of the map
+ rm -f /tmp/scribble
+ for (( i=0 ; i<512 ; i++ )); do
+ echo -n -e \\x1e\\x1e\\x00\\xc0\\x1e\\x1e\\x00\\xc0 >> /tmp/scribble
+ done
+ seek="$((raw_size/bs - (256*64/bs) - 2))"
+ echo "scribbling over map entries (offset = $seek blocks)"
+ dd if=/tmp/scribble of=/dev/$raw_bdev bs=$bs seek=$seek
+ rm -f /tmp/scribble
+ unset_raw
+ $ndctl disable-namespace $dev
+ $ndctl check-namespace $dev 2>&1 | grep "bitmap error"
+ # This is not repairable
+ reset && create
+}
+
+do_tests()
+{
+ test_normal
+ test_force
+ test_bad_info2
+ test_bad_info
+ test_bitmap
+}
+
+# setup (reset nfit_test dimms, create the BTT namespace)
+modprobe nfit_test
+rc=1
+reset && create
+do_tests
+reset
+exit 0