netdev - [PATCH net-next 5/5] selftests: mlxsw: Add Spectrum-2 target scale for tc flower scale test

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Message-Id: <20191017065518.27008-6-idosch@idosch.org>
Date:   Thu, 17 Oct 2019 09:55:18 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, danieller@...lanox.com,
        mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 5/5] selftests: mlxsw: Add Spectrum-2 target scale for tc flower scale test

From: Danielle Ratson <danieller@...lanox.com>

Return the maximum number of tc flower filters that can be offloaded.
Currently, this value corresponds to the number of counters supported by
the driver.

Signed-off-by: Danielle Ratson <danieller@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../net/mlxsw/spectrum-2/resource_scale.sh    |  2 +-
 .../net/mlxsw/spectrum-2/tc_flower_scale.sh   | 20 +++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh

diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
index 3bb9147890fa..2b5f4f7cc905 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
@@ -20,7 +20,7 @@ cleanup()
 
 trap cleanup EXIT
 
-ALL_TESTS="mirror_gre"
+ALL_TESTS="tc_flower mirror_gre"
 for current_test in ${TESTS:-$ALL_TESTS}; do
 	source ${current_test}_scale.sh
 
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
new file mode 100644
index 000000000000..a0795227216e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../tc_flower_scale.sh
+
+tc_flower_get_target()
+{
+	local should_fail=$1; shift
+
+	# The driver associates a counter with each tc filter, which means the
+	# number of supported filters is bounded by the number of available
+	# counters.
+	# Currently, the driver supports 12K (12,288) flow counters and six of
+	# these are used for multicast routing.
+	local target=12282
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
-- 
2.21.0