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authorArnaldo Carvalho de Melo <acme@redhat.com>2020-08-06 13:15:47 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-08-06 13:15:47 +0200
commit94fb1afb14c4f0ceb8c5508ddddac6819f662e95 (patch)
tree4988e5769dc7482caa7f441475ae31f50bbd37ef /tools/testing/selftests/net/txtimestamp.c
parentperf evsel: Don't set sample_regs_intr/sample_regs_user for dummy event (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next (diff)
downloadlinux-94fb1afb14c4f0ceb8c5508ddddac6819f662e95.tar.xz
linux-94fb1afb14c4f0ceb8c5508ddddac6819f662e95.zip
Mgerge remote-tracking branch 'torvalds/master' into perf/core
To sync headers, for instance, in this case tools/perf was ahead of upstream till Linus merged tip/perf/core to get the PERF_RECORD_TEXT_POKE changes: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/testing/selftests/net/txtimestamp.c')
-rw-r--r--tools/testing/selftests/net/txtimestamp.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/testing/selftests/net/txtimestamp.c b/tools/testing/selftests/net/txtimestamp.c
index 011b0da6b033..490a8cca708a 100644
--- a/tools/testing/selftests/net/txtimestamp.c
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -64,6 +64,7 @@ static int cfg_payload_len = 10;
static int cfg_poll_timeout = 100;
static int cfg_delay_snd;
static int cfg_delay_ack;
+static int cfg_delay_tolerance_usec = 500;
static bool cfg_show_payload;
static bool cfg_do_pktinfo;
static bool cfg_busy_poll;
@@ -152,11 +153,12 @@ static void validate_key(int tskey, int tstype)
static void validate_timestamp(struct timespec *cur, int min_delay)
{
- int max_delay = min_delay + 500 /* processing time upper bound */;
int64_t cur64, start64;
+ int max_delay;
cur64 = timespec_to_us64(cur);
start64 = timespec_to_us64(&ts_usr);
+ max_delay = min_delay + cfg_delay_tolerance_usec;
if (cur64 < start64 + min_delay || cur64 > start64 + max_delay) {
fprintf(stderr, "ERROR: %lu us expected between %d and %d\n",
@@ -683,6 +685,7 @@ static void __attribute__((noreturn)) usage(const char *filepath)
" -r: use raw\n"
" -R: use raw (IP_HDRINCL)\n"
" -S N: usec to sleep before reading error queue\n"
+ " -t N: tolerance (usec) for timestamp validation\n"
" -u: use udp\n"
" -v: validate SND delay (usec)\n"
" -V: validate ACK delay (usec)\n"
@@ -697,7 +700,7 @@ static void parse_opt(int argc, char **argv)
int c;
while ((c = getopt(argc, argv,
- "46bc:CeEFhIl:LnNp:PrRS:uv:V:x")) != -1) {
+ "46bc:CeEFhIl:LnNp:PrRS:t:uv:V:x")) != -1) {
switch (c) {
case '4':
do_ipv6 = 0;
@@ -760,6 +763,9 @@ static void parse_opt(int argc, char **argv)
case 'S':
cfg_sleep_usec = strtoul(optarg, NULL, 10);
break;
+ case 't':
+ cfg_delay_tolerance_usec = strtoul(optarg, NULL, 10);
+ break;
case 'u':
proto_count++;
cfg_proto = SOCK_DGRAM;