[PATCH net-next 2/8] selftests: netdevsim: add a test checking ethtool features

[Sabrina Dubroca]

Add a test checking that some features are active by default and
changeable.

Signed-off-by: Sabrina Dubroca <s...@queasysnail.net>
---
 .../selftests/drivers/net/netdevsim/Makefile  |  1 +
 .../drivers/net/netdevsim/ethtool-features.sh | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 
tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh

diff --git a/tools/testing/selftests/drivers/net/netdevsim/Makefile 
b/tools/testing/selftests/drivers/net/netdevsim/Makefile
index cc08b220323f..df167c637af9 100644
--- a/tools/testing/selftests/drivers/net/netdevsim/Makefile
+++ b/tools/testing/selftests/drivers/net/netdevsim/Makefile
@@ -4,6 +4,7 @@ TEST_PROGS = devlink.sh \
        devlink_in_netns.sh \
        devlink_trap.sh \
        ethtool-coalesce.sh \
+       ethtool-features.sh \
        ethtool-fec.sh \
        ethtool-pause.sh \
        ethtool-ring.sh \
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh 
b/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh
new file mode 100644
index 000000000000..bc210dc6ad2d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+FEATS="
+  tx-checksum-ip-generic
+  tx-scatter-gather
+  tx-tcp-segmentation
+  generic-segmentation-offload
+  generic-receive-offload"
+
+for feat in $FEATS ; do
+    s=$(ethtool --json -k $NSIM_NETDEV | jq ".[].\"$feat\".active" 2>/dev/null)
+    check $? "$s" true
+
+    s=$(ethtool --json -k $NSIM_NETDEV | jq ".[].\"$feat\".fixed" 2>/dev/null)
+    check $? "$s" false
+done
+
+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
-- 
2.47.0