[PATCH v6 4/8] firmware: test partial file reads of request_firmware_into_buf

Scott Branden
2020-06-05T23:01:07Z

Add firmware tests for partial file reads of request_firmware_into_buf.

Signed-off-by: Scott Branden <scott.branden@broadcom.com>
---
.../selftests/firmware/fw_filesystem.sh | 80 +++++++++++++++++++
1 file changed, 80 insertions(+)

diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index fcc281373b4d..38e89ba1b4d3 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -149,6 +149,26 @@ config_unset_into_buf()
echo 0 > $DIR/config_into_buf
}

+config_set_buf_size()
+{
+ echo $1 > $DIR/config_buf_size
+}
+
+config_set_file_offset()
+{
+ echo $1 > $DIR/config_file_offset
+}
+
+config_set_partial()
+{
+ echo 1 > $DIR/config_partial
+}
+
+config_unset_partial()
+{
+ echo 0 > $DIR/config_partial
+}
+
config_set_sync_direct()
{
echo 1 > $DIR/config_sync_direct
@@ -207,6 +227,35 @@ read_firmwares()
done
}

+read_firmwares_partial()
+{
+ if [ "$(cat $DIR/config_into_buf)" == "1" ]; then
+ fwfile="${FW_INTO_BUF}"
+ else
+ fwfile="${FW}"
+ fi
+
+ if [ "$1" = "xzonly" ]; then
+ fwfile="${fwfile}-orig"
+ fi
+
+ # Strip fwfile down to match partial offset and length
+ partial_data="$(cat $fwfile)"
+ partial_data="${partial_data:$2:$3}"
+
+ for i in $(seq 0 3); do
+ config_set_read_fw_idx $i
+
+ read_firmware="$(cat $DIR/read_firmware)"
+
+ # Verify the contents are what we expect.
+ if [ $read_firmware != $partial_data ]; then
+ echo "request #$i: partial firmware was not loaded" >&2
+ exit 1
+ fi
+ done
+}
+
read_firmwares_expect_nofile()
{
for i in $(seq 0 3); do
@@ -319,6 +368,21 @@ test_batched_request_firmware_into_buf()
echo "OK"
}

+test_batched_request_firmware_into_buf_partial()
+{
+ echo -n "Batched request_firmware_into_buf_partial() $2 off=$3 size=$4 try #$1: "
+ config_reset
+ config_set_name $TEST_FIRMWARE_INTO_BUF_FILENAME
+ config_set_into_buf
+ config_set_partial
+ config_set_buf_size $4
+ config_set_file_offset $3
+ config_trigger_sync
+ read_firmwares_partial $2 $3 $4
+ release_all_firmware
+ echo "OK"
+}
+
test_batched_request_firmware_direct()
{
echo -n "Batched request_firmware_direct() $2 try #$1: "
@@ -371,6 +435,22 @@ for i in $(seq 1 5); do
test_batched_request_firmware_into_buf $i normal
done

+for i in $(seq 1 5); do
+ test_batched_request_firmware_into_buf_partial $i normal 0 10
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_firmware_into_buf_partial $i normal 0 5
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_firmware_into_buf_partial $i normal 1 6
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_firmware_into_buf_partial $i normal 2 10
+done
+
for i in $(seq 1 5); do
test_batched_request_firmware_direct $i normal
done
--
2.17.1