From: Alison Schofield <[email protected]> Exercise cxl list, libcxl, and driver pieces of the get poison pathway. The poison records themselves are mocked by cxl_test, but the work of triggering the poison read, logging as trace events, and then collecting and parsing is all for real.
Signed-off-by: Alison Schofield <[email protected]> --- test/cxl-get-poison.sh | 78 ++++++++++++++++++++++++++++++++++++++++++ test/meson.build | 2 ++ 2 files changed, 80 insertions(+) create mode 100644 test/cxl-get-poison.sh diff --git a/test/cxl-get-poison.sh b/test/cxl-get-poison.sh new file mode 100644 index 000000000000..fe93a67a5240 --- /dev/null +++ b/test/cxl-get-poison.sh @@ -0,0 +1,78 @@ +#!/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 $LINENO' ERR + +check_prereq "jq" + +modprobe -r cxl_test +modprobe cxl_test +udevadm settle + +# The number or errors that cxl_test mocks is subject to change. +NR_ERRS=2 + +# THEORY OF OPERATION: Exercise cxl-cli and cxl driver capabilites wrt +# retrieving poison lists. The poison list is maintained by the device. +# It may be requested per memdev or per region. + +create_region() +{ + region=$($CXL create-region -d $decoder -m $memdevs | jq -r ".region") + + if [[ ! $region ]]; then + echo "create-region failed for $decoder" + err "$LINENO" + fi +} + +setup_x2_region() +{ + # Find an x2 decoder + decoder=$($CXL list -b cxl_test -D -d root | jq -r ".[] | + select(.pmem_capable == true) | + select(.nr_targets == 2) | + .decoder") + + # Find a memdev for each host-bridge interleave position + port_dev0=$($CXL list -T -d $decoder | jq -r ".[] | + .targets | .[] | select(.position == 0) | .target") + port_dev1=$($CXL list -T -d $decoder | jq -r ".[] | + .targets | .[] | select(.position == 1) | .target") + mem0=$($CXL list -M -p $port_dev0 | jq -r ".[0].memdev") + mem1=$($CXL list -M -p $port_dev1 | jq -r ".[0].memdev") + memdevs="$mem0 $mem1" +} + +find_media_errors() +{ + nr=$(echo $json | jq -r ".nr_media_errors") + if [[ $nr -ne $NR_ERRS ]]; then + echo "$mem: $NR_ERRS media errors expected, $nr found" + err "$LINENO" + fi +} + +# Read poison from each available memdev +readarray -t mems < <("$CXL" list -b cxl_test -Mi | jq -r '.[].memdev') +for mem in ${mems[@]}; do + json=$("$CXL" list -m "$mem" --media-errors | jq -r '.[].media_errors') + find_media_errors +done + +# Read poison from one region +setup_x2_region +create_region +json=$("$CXL" list -r "$region" --media-errors | jq -r '.[].media_errors') +find_media_errors +cxl disable-region $region +cxl destroy-region $region + +modprobe -r cxl_test diff --git a/test/meson.build b/test/meson.build index 5953c286d13f..721c69e79f5e 100644 --- a/test/meson.build +++ b/test/meson.build @@ -154,6 +154,7 @@ 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') +cxl_get_poison = find_program('cxl-get-poison.sh') tests = [ [ 'libndctl', libndctl, 'ndctl' ], @@ -182,6 +183,7 @@ tests = [ [ 'cxl-region-sysfs.sh', cxl_sysfs, 'cxl' ], [ 'cxl-labels.sh', cxl_labels, 'cxl' ], [ 'cxl-create-region.sh', cxl_create_region, 'cxl' ], + [ 'cxl-get-poison.sh', cxl_get_poison, 'cxl' ], ] if get_option('destructive').enabled() -- 2.37.3
