Thread (6 messages) 6 messages, 2 authors, 2021-03-02
STALE1949d LANDED
Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 current

[PATCH bpf-next v3 2/4] selftests/bpf: expose and rename debug argument

From: Ciara Loftus <hidden>
Date: 2021-02-23 16:56:07
Also in: bpf
Subsystem: bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest, xdp (express data path), xdp sockets (af_xdp) · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Linus Torvalds, David S. Miller, Jakub Kicinski, Jesper Dangaard Brouer, John Fastabend, Magnus Karlsson, Maciej Fijalkowski

Launching xdpxceiver with -D enables what was formerly know as 'debug'
mode. Rename this mode to 'dump-pkts' as it better describes the
behavior enabled by the option. New usage:

./xdpxceiver .. -D
or
./xdpxceiver .. --dump-pkts

Also make it possible to pass this flag to the app via the test_xsk.sh
shell script like so:

./test_xsk.sh -D

Signed-off-by: Ciara Loftus <redacted>
---
 tools/testing/selftests/bpf/test_xsk.sh    | 10 +++++++++-
 tools/testing/selftests/bpf/xdpxceiver.c   |  6 +++---
 tools/testing/selftests/bpf/xsk_prereqs.sh |  3 ++-
 3 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
index f4cedf4c2718..dbb129a36606 100755
--- a/tools/testing/selftests/bpf/test_xsk.sh
+++ b/tools/testing/selftests/bpf/test_xsk.sh
@@ -74,14 +74,18 @@
 #
 # Run with verbose output:
 #   sudo ./test_xsk.sh -v
+#
+# Run and dump packet contents:
+#   sudo ./test_xsk.sh -D
 
 . xsk_prereqs.sh
 
-while getopts "cv" flag
+while getopts "cvD" flag
 do
 	case "${flag}" in
 		c) colorconsole=1;;
 		v) verbose=1;;
+		D) dump_pkts=1;;
 	esac
 done
 
@@ -138,6 +142,10 @@ if [[ $verbose -eq 1 ]]; then
 	VERBOSE_ARG="-v"
 fi
 
+if [[ $dump_pkts -eq 1 ]]; then
+	DUMP_PKTS_ARG="-D"
+fi
+
 test_status $retval "${TEST_NAME}"
 
 ## START TESTS
diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index 8af746c9a6b6..506423201197 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -58,7 +58,7 @@
  * - Rx thread verifies if all 10k packets were received and delivered in-order,
  *   and have the right content
  *
- * Enable/disable debug mode:
+ * Enable/disable packet dump mode:
  * --------------------------
  * To enable L2 - L4 headers and payload dump of each packet on STDOUT, add
  * parameter -D to params array in test_xsk.sh, i.e. params=("-S" "-D")
@@ -340,7 +340,7 @@ static struct option long_options[] = {
 	{"copy", no_argument, 0, 'c'},
 	{"tear-down", no_argument, 0, 'T'},
 	{"bidi", optional_argument, 0, 'B'},
-	{"debug", optional_argument, 0, 'D'},
+	{"dump-pkts", optional_argument, 0, 'D'},
 	{"verbose", no_argument, 0, 'v'},
 	{"tx-pkt-count", optional_argument, 0, 'C'},
 	{0, 0, 0, 0}
@@ -359,7 +359,7 @@ static void usage(const char *prog)
 	    "  -c, --copy           Force copy mode\n"
 	    "  -T, --tear-down      Tear down sockets by repeatedly recreating them\n"
 	    "  -B, --bidi           Bi-directional sockets test\n"
-	    "  -D, --debug          Debug mode - dump packets L2 - L5\n"
+	    "  -D, --dump-pkts      Dump packets L2 - L5\n"
 	    "  -v, --verbose        Verbose output\n"
 	    "  -C, --tx-pkt-count=n Number of packets to send\n";
 	ksft_print_msg(str, prog);
diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh
index ef8c5b31f4b6..da93575d757a 100755
--- a/tools/testing/selftests/bpf/xsk_prereqs.sh
+++ b/tools/testing/selftests/bpf/xsk_prereqs.sh
@@ -128,5 +128,6 @@ execxdpxceiver()
 			copy[$index]=${!current}
 		done
 
-	./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG}
+	./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG} \
+		${DUMP_PKTS_ARG}
 }
-- 
2.17.1
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help