netdev - [PATCH net-next] tc-testing: Add tdc to kselftests

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Message-Id: <20200717215439.51672-1-briana.oursler@gmail.com>
Date:   Fri, 17 Jul 2020 14:54:39 -0700
From:   Briana Oursler <briana.oursler@...il.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Roman Mashak <mrv@...atatu.com>, Shuah Khan <shuah@...nel.org>,
        Stefano Brivio <sbrivio@...hat.com>,
        Davide Caratti <dcaratti@...hat.com>, netdev@...r.kernel.org,
        Briana Oursler <briana.oursler@...il.com>
Subject: [PATCH net-next] tc-testing: Add tdc to kselftests

Add tdc to existing kselftest infrastructure so that it can be run with
existing kselftests. TDC now generates objects in objdir/kselftest
without cluttering main objdir, leaves source directory clean, and
installs correctly in kselftest_install, properly adding itself to
run_kselftest.sh script.

Add tc-testing as a target of selftests/Makefile. Create tdc.sh to run
tdc.py targets with correct arguments. To support single target from
selftest/Makefile, combine tc-testing/bpf/Makefile and
tc-testing/Makefile. Move action.c up a directory to tc-testing/.

Tested with:
 make O=/tmp/{objdir} TARGETS="tc-testing" kselftest
 cd /tmp/{objdir}
 cd kselftest
 cd tc-testing
 ./tdc.sh

 make -C tools/testing/selftests/ TARGETS=tc-testing run_tests

 make TARGETS="tc-testing" kselftest
 cd tools/testing/selftests
 ./kselftest_install.sh /tmp/exampledir
 My VM doesn't run all the kselftests so I commented out all except my
 target and net/pmtu.sh then:
 cd /tmp/exampledir && ./run_kselftest.sh

Co-developed-by: Davide Caratti <dcaratti@...hat.com>
Signed-off-by: Davide Caratti <dcaratti@...hat.com>
Signed-off-by: Briana Oursler <briana.oursler@...il.com>
---
 tools/testing/selftests/Makefile                      | 1 +
 tools/testing/selftests/tc-testing/{bpf => }/Makefile | 9 ++++++---
 tools/testing/selftests/tc-testing/{bpf => }/action.c | 0
 tools/testing/selftests/tc-testing/tdc.sh             | 6 ++++++
 tools/testing/selftests/tc-testing/tdc_config.py      | 2 +-
 5 files changed, 14 insertions(+), 4 deletions(-)
 rename tools/testing/selftests/tc-testing/{bpf => }/Makefile (79%)
 rename tools/testing/selftests/tc-testing/{bpf => }/action.c (100%)
 create mode 100755 tools/testing/selftests/tc-testing/tdc.sh

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 1195bd85af38..f4522e0a2cab 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -54,6 +54,7 @@ TARGETS += splice
 TARGETS += static_keys
 TARGETS += sync
 TARGETS += sysctl
+TARGETS += tc-testing
 TARGETS += timens
 ifneq (1, $(quicktest))
 TARGETS += timers
diff --git a/tools/testing/selftests/tc-testing/bpf/Makefile b/tools/testing/selftests/tc-testing/Makefile
similarity index 79%
rename from tools/testing/selftests/tc-testing/bpf/Makefile
rename to tools/testing/selftests/tc-testing/Makefile
index be5a5e542804..91fee5c43274 100644
--- a/tools/testing/selftests/tc-testing/bpf/Makefile
+++ b/tools/testing/selftests/tc-testing/Makefile
@@ -1,11 +1,11 @@
 # SPDX-License-Identifier: GPL-2.0
 
-APIDIR := ../../../../include/uapi
+top_srcdir = $(abspath ../../../..)
+APIDIR := $(top_scrdir)/include/uapi
 TEST_GEN_FILES = action.o
 
-top_srcdir = ../../../../..
 KSFT_KHDR_INSTALL := 1
-include ../../lib.mk
+include ../lib.mk
 
 CLANG ?= clang
 LLC   ?= llc
@@ -28,3 +28,6 @@ $(OUTPUT)/%.o: %.c
 	$(CLANG) $(CLANG_FLAGS) \
 		 -O2 -target bpf -emit-llvm -c $< -o - |      \
 	$(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
+
+TEST_PROGS += ./tdc.sh
+TEST_FILES := tdc*.py Tdc*.py plugins plugin-lib tc-tests
diff --git a/tools/testing/selftests/tc-testing/bpf/action.c b/tools/testing/selftests/tc-testing/action.c
similarity index 100%
rename from tools/testing/selftests/tc-testing/bpf/action.c
rename to tools/testing/selftests/tc-testing/action.c
diff --git a/tools/testing/selftests/tc-testing/tdc.sh b/tools/testing/selftests/tc-testing/tdc.sh
new file mode 100755
index 000000000000..e5d2c0e97bda
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tdc.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+./tdc.py -c actions --nobuildebpf
+./tdc.py -c qdisc
+
diff --git a/tools/testing/selftests/tc-testing/tdc_config.py b/tools/testing/selftests/tc-testing/tdc_config.py
index 080709cc4297..cd4a27ee1466 100644
--- a/tools/testing/selftests/tc-testing/tdc_config.py
+++ b/tools/testing/selftests/tc-testing/tdc_config.py
@@ -24,7 +24,7 @@ NAMES = {
           # Name of the namespace to use
           'NS': 'tcut',
           # Directory containing eBPF test programs
-          'EBPFDIR': './bpf'
+          'EBPFDIR': './'
         }
 
 
-- 
2.27.0