netdev - [PATCH net-next v3 13/16] selftests: forwarding: devlink_lib: Allow tests to define devlink device

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Date:   Sat, 17 Aug 2019 16:28:22 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, nhorman@...driver.com, jiri@...lanox.com,
        toke@...hat.com, dsahern@...il.com, roopa@...ulusnetworks.com,
        nikolay@...ulusnetworks.com, jakub.kicinski@...ronome.com,
        andy@...yhouse.net, f.fainelli@...il.com, andrew@...n.ch,
        vivien.didelot@...il.com, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next v3 13/16] selftests: forwarding: devlink_lib: Allow tests to define devlink device

From: Ido Schimmel <idosch@...lanox.com>

For tests that create their network interfaces dynamically or do not use
interfaces at all (as with netdevsim) it is useful to define their own
devlink device instead of deriving it from the first network interface.

Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../selftests/net/forwarding/devlink_lib.sh   | 26 ++++++++++---------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index 8553a67a2322..2b9296f6aa07 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -4,19 +4,21 @@
 ##############################################################################
 # Defines
 
-DEVLINK_DEV=$(devlink port show "${NETIFS[p1]}" -j \
-		     | jq -r '.port | keys[]' | cut -d/ -f-2)
-if [ -z "$DEVLINK_DEV" ]; then
-	echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
-	exit 1
-fi
-if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
-	echo "SKIP: devlink device's bus is not PCI"
-	exit 1
-fi
+if [[ ! -v DEVLINK_DEV ]]; then
+	DEVLINK_DEV=$(devlink port show "${NETIFS[p1]}" -j \
+			     | jq -r '.port | keys[]' | cut -d/ -f-2)
+	if [ -z "$DEVLINK_DEV" ]; then
+		echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
+		exit 1
+	fi
+	if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
+		echo "SKIP: devlink device's bus is not PCI"
+		exit 1
+	fi
 
-DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
-		 -n | cut -d" " -f3)
+	DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
+			 -n | cut -d" " -f3)
+fi
 
 ##############################################################################
 # Sanity checks
-- 
2.21.0