1 files changed, 114 insertions, 0 deletions
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh
new file mode 100755
index 000000000000..6c52ce1b0450
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+NSIM_NETDEV=$(make_netdev)
+[ a$ETHTOOL == a ] && ETHTOOL=ethtool
+
+set -o pipefail
+
+# Since commit 2b3ddcb35357 ("ethtool: fec: Change the prompt ...")
+# in ethtool CLI the Configured lines start with Supported/Configured.
+configured=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2 | head -1 | cut -d' ' -f1)
+
+# netdevsim starts out with None/None
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: None
+Active FEC encoding: None"
+
+# Test Auto
+$ETHTOOL --set-fec $NSIM_NETDEV encoding auto
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: Auto
+Active FEC encoding: Off"
+
+# Test case in-sensitivity
+for o in off Off OFF; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: Off
+Active FEC encoding: Off"
+done
+
+for o in BaseR baser BAser; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: BaseR
+Active FEC encoding: BaseR"
+done
+
+for o in llrs rs; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: ${o^^}
+Active FEC encoding: ${o^^}"
+done
+
+# Test multiple bits
+$ETHTOOL --set-fec $NSIM_NETDEV encoding rs llrs
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: RS LLRS
+Active FEC encoding: LLRS"
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding rs off auto
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: Auto Off RS
+Active FEC encoding: RS"
+
+# Make sure other link modes are rejected
+$ETHTOOL --set-fec $NSIM_NETDEV encoding FIBRE 2>/dev/null
+check $? '' '' 1
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding bla-bla-bla 2>/dev/null
+check $? '' '' 1
+
+# Try JSON
+$ETHTOOL --json --show-fec $NSIM_NETDEV | jq empty >>/dev/null 2>&1
+if [ $? -eq 0 ]; then
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto
+    check $?
+
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')
+    check $? "$s" '"Auto"'
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')
+    check $? "$s" '"Off"'
+
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto RS
+    check $?
+
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')
+    check $? "$s" '"Auto"
+"RS"'
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')
+    check $? "$s" '"RS"'
+fi
+
+# Test error injection
+echo 11 > $NSIM_DEV_DFS/ethtool/get_err
+
+$ETHTOOL --show-fec $NSIM_NETDEV >>/dev/null 2>&1
+check $? '' '' 1
+
+echo 0 > $NSIM_DEV_DFS/ethtool/get_err
+echo 11 > $NSIM_DEV_DFS/ethtool/set_err
+
+$ETHTOOL --show-fec $NSIM_NETDEV  >>/dev/null 2>&1
+check $?
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding RS 2>/dev/null
+check $? '' '' 1
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi