From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8054152537 for ; Wed, 27 Mar 2024 19:52:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711569164; cv=none; b=BYKHeKvko9l+M+zVOMB3vy2qkmiRi2ZGpx65QuwhRFiSD66hFBdlGEJPiNmtJsma3O1ybJYS+awkl6RoV3qS8QZUwbrIikISq+RxBUFq6i07WNXDyIWiHgL2oOdZRIIwuFg1hNI7jD+nVHDh9rnV0goJISAbY4jxjsFVJ/NgFlI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711569164; c=relaxed/simple; bh=RkvUXVi/Dt6O4GzRluGcJSTqPWOyEmy7NvPT0BP6324=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=bv7E45yxnCVQxbv4PsFHq2uyzbBiH7yihKvQvKRA5bSEyTw0FxLzCtDqXeao4GrVGBzfqm5PT7359Q+LC5JaOoU6x8DQpFtIIVzGzF+0QV80VYANXCe2WLtBa2g2ruGxQ18s8oCsaSc/E8FJ+RdglB+li2tNJk7cnycx+1NjvDk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eBbDdobk; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eBbDdobk" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1711569163; x=1743105163; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RkvUXVi/Dt6O4GzRluGcJSTqPWOyEmy7NvPT0BP6324=; b=eBbDdobkAMhJifox4JyXfzTXvKjXMGEesmm+3fVXhx84SsnccYqNCMMD sB6VrR5E4fOV1lXtuRnhAMg7Hl+yuHCyPVAluK4hQofqQB1NtTx1qMUHE si3hmyZNjH2RyZfFAJXAUmXgyHAn4BpElJxbG/oWRpxvKqO97yqUAtBXF qBL+PTSkjxSZsWdbVkJhlrnj9yMNK3XglCkt4q0jbZ8OOyMz9mNtJ9ZQO Dpx0HFuwWxoyIO1ixTYxQqT28H51N62OjMlHui05ldCwJlQtD1Jhlk7Jk oPTgf7sEdxAPy+bipqHNcQzqoGlQCc198qhOEus/APlRFacTy9wtjXbwC A==; X-CSE-ConnectionGUID: Bb9mWeChSfC7dc3BSwrf9Q== X-CSE-MsgGUID: tz+COcDLTEqhIxnyydpNEw== X-IronPort-AV: E=McAfee;i="6600,9927,11026"; a="6560230" X-IronPort-AV: E=Sophos;i="6.07,159,1708416000"; d="scan'208";a="6560230" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2024 12:52:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,159,1708416000"; d="scan'208";a="47616378" Received: from aschofie-mobl2.amr.corp.intel.com (HELO localhost) ([10.209.82.250]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2024 12:52:42 -0700 From: alison.schofield@intel.com To: Vishal Verma Cc: Alison Schofield , nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, Dave Jiang Subject: [ndctl PATCH v12 8/8] cxl/test: add cxl-poison.sh unit test Date: Wed, 27 Mar 2024 12:52:29 -0700 Message-Id: <39dabf14f9b060d88fa926874f6c6d6c75d7803c.1711519822.git.alison.schofield@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Alison Schofield Exercise cxl list, libcxl, and driver pieces of the get poison list pathway. Inject and clear poison using debugfs and use cxl-cli to read the poison list by memdev and by region. Signed-off-by: Alison Schofield Reviewed-by: Dave Jiang --- test/cxl-poison.sh | 137 +++++++++++++++++++++++++++++++++++++++++++++ test/meson.build | 2 + 2 files changed, 139 insertions(+) create mode 100644 test/cxl-poison.sh diff --git a/test/cxl-poison.sh b/test/cxl-poison.sh new file mode 100644 index 000000000000..2caf092db460 --- /dev/null +++ b/test/cxl-poison.sh @@ -0,0 +1,137 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2023 Intel Corporation. All rights reserved. + +. "$(dirname "$0")"/common + +rc=77 + +set -ex + +trap 'err $LINENO' ERR + +check_prereq "jq" + +modprobe -r cxl_test +modprobe cxl_test + +rc=1 + +# THEORY OF OPERATION: Exercise cxl-cli and cxl driver ability to +# inject, clear, and get the poison list. Do it by memdev and by region. + +find_memdev() +{ + readarray -t capable_mems < <("$CXL" list -b "$CXL_TEST_BUS" -M | + jq -r ".[] | select(.pmem_size != null) | + select(.ram_size != null) | .memdev") + + if [ ${#capable_mems[@]} == 0 ]; then + echo "no memdevs found for test" + err "$LINENO" + fi + + memdev=${capable_mems[0]} +} + +create_x2_region() +{ + # Find an x2 decoder + decoder="$($CXL list -b "$CXL_TEST_BUS" -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")" + + region="$($CXL create-region -d "$decoder" -m "$mem0" "$mem1" | + jq -r ".region")" + if [[ ! $region ]]; then + echo "create-region failed for $decoder" + err "$LINENO" + fi + echo "$region" +} + +# When cxl-cli support for inject and clear arrives, replace +# the writes to /sys/kernel/debug with the new cxl commands. + +inject_poison_sysfs() +{ + memdev="$1" + addr="$2" + + echo "$addr" > /sys/kernel/debug/cxl/"$memdev"/inject_poison +} + +clear_poison_sysfs() +{ + memdev="$1" + addr="$2" + + echo "$addr" > /sys/kernel/debug/cxl/"$memdev"/clear_poison +} + +validate_poison_found() +{ + list_by="$1" + nr_expect="$2" + + poison_list="$($CXL list "$list_by" --media-errors | + jq -r '.[].media_errors')" + if [[ ! $poison_list ]]; then + nr_found=0 + else + nr_found=$(jq "length" <<< "$poison_list") + fi + if [ "$nr_found" -ne "$nr_expect" ]; then + echo "$nr_expect poison records expected, $nr_found found" + err "$LINENO" + fi +} + +test_poison_by_memdev() +{ + find_memdev + inject_poison_sysfs "$memdev" "0x40000000" + inject_poison_sysfs "$memdev" "0x40001000" + inject_poison_sysfs "$memdev" "0x600" + inject_poison_sysfs "$memdev" "0x0" + validate_poison_found "-m $memdev" 4 + + clear_poison_sysfs "$memdev" "0x40000000" + clear_poison_sysfs "$memdev" "0x40001000" + clear_poison_sysfs "$memdev" "0x600" + clear_poison_sysfs "$memdev" "0x0" + validate_poison_found "-m $memdev" 0 +} + +test_poison_by_region() +{ + create_x2_region + inject_poison_sysfs "$mem0" "0x40000000" + inject_poison_sysfs "$mem1" "0x40000000" + validate_poison_found "-r $region" 2 + + clear_poison_sysfs "$mem0" "0x40000000" + clear_poison_sysfs "$mem1" "0x40000000" + validate_poison_found "-r $region" 0 +} + +# Turn tracing on. Note that 'cxl list --media-errors' toggles the tracing. +# Turning it on here allows the test user to also view inject and clear +# trace events. +echo 1 > /sys/kernel/tracing/events/cxl/cxl_poison/enable + +test_poison_by_memdev +test_poison_by_region + +check_dmesg "$LINENO" + +modprobe -r cxl-test diff --git a/test/meson.build b/test/meson.build index a965a79fd6cb..d871e28e17ce 100644 --- a/test/meson.build +++ b/test/meson.build @@ -160,6 +160,7 @@ cxl_events = find_program('cxl-events.sh') cxl_sanitize = find_program('cxl-sanitize.sh') cxl_destroy_region = find_program('cxl-destroy-region.sh') cxl_qos_class = find_program('cxl-qos-class.sh') +cxl_poison = find_program('cxl-poison.sh') tests = [ [ 'libndctl', libndctl, 'ndctl' ], @@ -192,6 +193,7 @@ tests = [ [ 'cxl-sanitize.sh', cxl_sanitize, 'cxl' ], [ 'cxl-destroy-region.sh', cxl_destroy_region, 'cxl' ], [ 'cxl-qos-class.sh', cxl_qos_class, 'cxl' ], + [ 'cxl-poison.sh', cxl_poison, 'cxl' ], ] if get_option('destructive').enabled() -- 2.37.3