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From 05a60dc4992bc4698ceff8e6737192ed818e7e34 Mon Sep 17 00:00:00 2001
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From: Dan Williams <dan.j.williams@intel.com>
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Date: Fri, 5 Aug 2022 13:37:56 -0700
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Subject: [PATCH 201/217] cxl/test: Validate endpoint interleave geometry
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Check that endpoint interleave geometry settings are updated once the
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endpoint decoders are associated with a region.
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Link: https://lore.kernel.org/r/165973187660.1528532.13832323649814892720.stgit@dwillia2-xfh.jf.intel.com
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Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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---
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test/cxl-region-sysfs.sh | 20 ++++++++++++++++++--
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1 file changed, 18 insertions(+), 2 deletions(-)
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diff --git a/test/cxl-region-sysfs.sh b/test/cxl-region-sysfs.sh
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index 2582edb..110e037 100644
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--- a/test/cxl-region-sysfs.sh
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+++ b/test/cxl-region-sysfs.sh
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@@ -44,8 +44,8 @@ uuidgen > /sys/bus/cxl/devices/$region/uuid
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# setup interleave geometry
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nr_targets=${#endpoint[@]}
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echo $nr_targets > /sys/bus/cxl/devices/$region/interleave_ways
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-g=$(cat /sys/bus/cxl/devices/$decoder/interleave_granularity)
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-echo $g > /sys/bus/cxl/devices/$region/interleave_granularity
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+r_ig=$(cat /sys/bus/cxl/devices/$decoder/interleave_granularity)
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+echo $r_ig > /sys/bus/cxl/devices/$region/interleave_granularity
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echo $((nr_targets * (256<<20))) > /sys/bus/cxl/devices/$region/size
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# grab the list of memdevs grouped by host-bridge interleave position
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@@ -96,6 +96,22 @@ do
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done
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echo "$region added ${#endpoint[@]} targets: ${endpoint[@]}"
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+# validate all endpoint decoders have the correct setting
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+region_size=$(cat /sys/bus/cxl/devices/$region/size)
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+region_base=$(cat /sys/bus/cxl/devices/$region/resource)
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+for i in ${endpoint[@]}
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+do
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+ iw=$(cat /sys/bus/cxl/devices/$i/interleave_ways)
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+ ig=$(cat /sys/bus/cxl/devices/$i/interleave_granularity)
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+ [ $iw -ne $nr_targets ] && err "$LINENO: decoder: $i iw: $iw targets: $nr_targets"
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+ [ $ig -ne $r_ig] && err "$LINENO: decoder: $i ig: $ig root ig: $r_ig"
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+
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+ sz=$(cat /sys/bus/cxl/devices/$i/size)
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+ res=$(cat /sys/bus/cxl/devices/$i/start)
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+ [ $sz -ne $region_size ] && err "$LINENO: decoder: $i sz: $sz region_size: $region_size"
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+ [ $res -ne $region_base ] && err "$LINENO: decoder: $i base: $res region_base: $region_base"
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+done
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+
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# walk up the topology and commit all decoders
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echo 1 > /sys/bus/cxl/devices/$region/commit
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--
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2.27.0
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