diff options
author | Vishal Verma <vishal.l.verma@intel.com> | 2022-07-27 01:25:23 -0600 |
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committer | Vishal Verma <vishal.l.verma@intel.com> | 2022-08-16 00:15:26 -0600 |
commit | 4dbf1a119227248afe04a25083891b650de5d32c (patch) | |
tree | 83c0916e3f3691961750cae0fe96f90922f1c5bf | |
parent | 0ec9bd077e640749f78110d885e6cb2d0a79e87c (diff) |
test: add a cxl-create-region test
Add a unit test to exercise the cxl-create-region command with different
combinations of memdevs and decoders, using cxl_test based mocked
devices.
Cc: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
-rw-r--r-- | test/cxl-create-region.sh | 125 | ||||
-rw-r--r-- | test/meson.build | 2 |
2 files changed, 127 insertions, 0 deletions
diff --git a/test/cxl-create-region.sh b/test/cxl-create-region.sh new file mode 100644 index 00000000..66df38f4 --- /dev/null +++ b/test/cxl-create-region.sh @@ -0,0 +1,125 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2022 Intel Corporation. All rights reserved. + +. $(dirname $0)/common + +rc=1 + +set -ex + +trap 'err $LINENO' ERR + +check_prereq "jq" + +modprobe -r cxl_test +modprobe cxl_test +udevadm settle + +destroy_regions() +{ + if [[ "$*" ]]; then + $CXL destroy-region -f -b cxl_test "$@" + else + $CXL destroy-region -f -b cxl_test all + fi +} + +create_x1_region() +{ + mem="$1" + + # find a pmem capable root decoder for this mem + decoder=$($CXL list -b cxl_test -D -d root -m "$mem" | + jq -r ".[] | + select(.pmem_capable == true) | + select(.nr_targets == 1) | + .decoder") + + if [[ ! $decoder ]]; then + echo "no suitable decoder found for $mem, skipping" + return + fi + + # create region + region=$($CXL create-region -d "$decoder" -m "$mem" | jq -r ".region") + + if [[ ! $region ]]; then + echo "create-region failed for $decoder / $mem" + err "$LINENO" + fi + + # cycle disable/enable + $CXL disable-region --bus=cxl_test "$region" + $CXL enable-region --bus=cxl_test "$region" + + # cycle destroying and creating the same region + destroy_regions "$region" + region=$($CXL create-region -d "$decoder" -m "$mem" | jq -r ".region") + + if [[ ! $region ]]; then + echo "create-region failed for $decoder / $mem" + err "$LINENO" + fi + destroy_regions "$region" +} + +create_subregions() +{ + slice=$((256 << 20)) + mem="$1" + + # find a pmem capable root decoder for this mem + decoder=$($CXL list -b cxl_test -D -d root -m "$mem" | + jq -r ".[] | + select(.pmem_capable == true) | + select(.nr_targets == 1) | + .decoder") + + if [[ ! $decoder ]]; then + echo "no suitable decoder found for $mem, skipping" + return + fi + + size="$($CXL list -m "$mem" | jq -r '.[].pmem_size')" + if [[ ! $size ]]; then + echo "$mem: unable to determine size" + err "$LINENO" + fi + + num_regions=$((size / slice)) + + declare -a regions + for (( i = 0; i < num_regions; i++ )); do + regions[$i]=$($CXL create-region -d "$decoder" -m "$mem" -s "$slice" | jq -r ".region") + if [[ ! ${regions[$i]} ]]; then + echo "create sub-region failed for $decoder / $mem" + err "$LINENO" + fi + udevadm settle + done + + echo "created $num_regions subregions:" + for (( i = 0; i < num_regions; i++ )); do + echo "${regions[$i]}" + done + + for (( i = (num_regions - 1); i >= 0; i-- )); do + destroy_regions "${regions[$i]}" + done +} + +# test reading labels directly through cxl-cli +readarray -t mems < <("$CXL" list -b cxl_test -M | jq -r '.[].memdev') + +for mem in ${mems[@]}; do + create_x1_region "$mem" +done + +# test multiple subregions under the same decoder, using slices of the same memdev +# to test out back-to-back pmem DPA allocations on memdevs +for mem in ${mems[@]}; do + create_subregions "$mem" +done + +modprobe -r cxl_test diff --git a/test/meson.build b/test/meson.build index b382f46b..5953c286 100644 --- a/test/meson.build +++ b/test/meson.build @@ -153,6 +153,7 @@ track_uuid = find_program('track-uuid.sh') cxl_topo = find_program('cxl-topology.sh') cxl_sysfs = find_program('cxl-region-sysfs.sh') cxl_labels = find_program('cxl-labels.sh') +cxl_create_region = find_program('cxl-create-region.sh') tests = [ [ 'libndctl', libndctl, 'ndctl' ], @@ -180,6 +181,7 @@ tests = [ [ 'cxl-topology.sh', cxl_topo, 'cxl' ], [ 'cxl-region-sysfs.sh', cxl_sysfs, 'cxl' ], [ 'cxl-labels.sh', cxl_labels, 'cxl' ], + [ 'cxl-create-region.sh', cxl_create_region, 'cxl' ], ] if get_option('destructive').enabled() |