From: Alison Schofield <alison.schofi...@intel.com>
cxl-xor-region.sh includes test cases for 1 & 2 way host bridge
interleaves. Add a new test case to exercise the modulo math
function the CXL driver uses to find positions in a 3-way host
bridge interleave.
Skip this test case, don't fail, if the new 3-way XOR decoder
is not present in cxl/test.
Add the missing check_dmesg helper before exiting this test.
Signed-off-by: Alison Schofield <alison.schofi...@intel.com>
---
test/cxl-xor-region.sh | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/test/cxl-xor-region.sh b/test/cxl-xor-region.sh
index e536f0256202..b9e1d79212d3 100644
--- a/test/cxl-xor-region.sh
+++ b/test/cxl-xor-region.sh
@@ -87,11 +87,44 @@ setup_x4()
memdevs="$mem0 $mem1 $mem2 $mem3"
}
+setup_x3()
+{
+ # find an x3 decoder
+ decoder=$($CXL list -b cxl_test -D -d root | jq -r ".[] |
+ select(.pmem_capable == true) |
+ select(.nr_targets == 3) |
+ .decoder")
+
+ if [[ ! $decoder ]]; then
+ echo "no x3 decoder found, skipping xor-x3 test"
+ return
+ fi
+
+ # Find a memdev for each host-bridge interleave position
+ port_dev0=$($CXL list -T -d "$decoder" | jq -r ".[] |
+ .targets | .[] | select(.position == 0) | .target")
+ port_dev1=$($CXL list -T -d "$decoder" | jq -r ".[] |
+ .targets | .[] | select(.position == 1) | .target")
+ port_dev2=$($CXL list -T -d "$decoder" | jq -r ".[] |
+ .targets | .[] | select(.position == 2) | .target")
+ mem0=$($CXL list -M -p "$port_dev0" | jq -r ".[0].memdev")
+ mem1=$($CXL list -M -p "$port_dev1" | jq -r ".[0].memdev")
+ mem2=$($CXL list -M -p "$port_dev2" | jq -r ".[0].memdev")
+ memdevs="$mem0 $mem1 $mem2"
+}
+
setup_x1
create_and_destroy_region
setup_x2
create_and_destroy_region
setup_x4
create_and_destroy_region
+# x3 decoder may not be available in cxl/test topo yet
+setup_x3
+if [[ $decoder ]]; then
+ create_and_destroy_region
+fi
+
+check_dmesg "$LINENO"
modprobe -r cxl_test
--
2.37.3
