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Message-ID: <20230929023746.1611832-1-maheshb@google.com>
Date: Thu, 28 Sep 2023 19:37:46 -0700
From: Mahesh Bandewar <maheshb@...gle.com>
To: Netdev <netdev@...r.kernel.org>,
Linux <linux-kernel@...r.kernel.org>,
David Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>
Cc: Jonathan Corbet <corbet@....net>, Don Hatchett <hatch@...gle.com>,
Yuliang Li <yuliangli@...gle.com>,
Mahesh Bandewar <mahesh@...dewar.net>,
Mahesh Bandewar <maheshb@...gle.com>,
Shuah Khan <shuah@...nel.org>,
Richard Cochran <richardcochran@...il.com>,
Rahul Rameshbabu <rrameshbabu@...dia.com>,
linux-kselftest@...r.kernel.org
Subject: [PATCH 4/4] selftes/ptp: extend test to include ptp_gettimex64any()
add -y/-Y options to support PTP_SYS_OFFSET_ANY2 op. where -y represents
samples to collect while -Y is to choose the timebase from available
options of cycles, real, mono, or raw.
Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
CC: Shuah Khan <shuah@...nel.org>
CC: Richard Cochran <richardcochran@...il.com>
CC: "David S. Miller" <davem@...emloft.net>
CC: Rahul Rameshbabu <rrameshbabu@...dia.com>
CC: Jakub Kicinski <kuba@...nel.org>
CC: linux-kselftest@...r.kernel.org
CC: netdev@...r.kernel.org
---
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/ptp/testptp.c | 79 ++++++++++++++++++++++++++-
2 files changed, 78 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 42806add0114..c5e59cfc9830 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -66,6 +66,7 @@ TARGETS += powerpc
TARGETS += prctl
TARGETS += proc
TARGETS += pstore
+TARGETS += ptp
TARGETS += ptrace
TARGETS += openat2
TARGETS += resctrl
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index c9f6cca4feb4..7000caa39ede 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -37,6 +37,13 @@
#define NSEC_PER_SEC 1000000000LL
+static char *time_base_arr[PTP_TS_MAX] = {
+ "cycles",
+ "system time",
+ "monotonic time",
+ "raw-monotonic time",
+};
+
/* clock_adjtime is not available in GLIBC < 2.14 */
#if !__GLIBC_PREREQ(2, 14)
#include <sys/syscall.h>
@@ -145,8 +152,10 @@ static void usage(char *progname)
" -T val set the ptp clock time to 'val' seconds\n"
" -x val get an extended ptp clock time with the desired number of samples (up to %d)\n"
" -X get a ptp clock cross timestamp\n"
+ " -y val get an extended-any ptp clock time with the desired number of samples (up to %d) with given time-base for sandwich (with -Y opt)\n"
+ " -Y val sandwich timebase to use {cycles|real|mono|raw}\n"
" -z test combinations of rising/falling external time stamp flags\n",
- progname, PTP_MAX_SAMPLES);
+ progname, PTP_MAX_SAMPLES, PTP_MAX_SAMPLES);
}
int main(int argc, char *argv[])
@@ -162,6 +171,7 @@ int main(int argc, char *argv[])
struct ptp_sys_offset *sysoff;
struct ptp_sys_offset_extended *soe;
struct ptp_sys_offset_precise *xts;
+ struct ptp_sys_offset_any *ats;
char *progname;
unsigned int i;
@@ -182,6 +192,8 @@ int main(int argc, char *argv[])
int pct_offset = 0;
int getextended = 0;
int getcross = 0;
+ int get_ext_any = 0;
+ int ext_any_type = -1;
int n_samples = 0;
int pin_index = -1, pin_func;
int pps = -1;
@@ -196,7 +208,7 @@ int main(int argc, char *argv[])
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
- while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:n:o:p:P:sSt:T:w:x:Xz"))) {
+ while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:n:o:p:P:sSt:T:w:x:Xy:Y:z"))) {
switch (c) {
case 'c':
capabilities = 1;
@@ -273,6 +285,31 @@ int main(int argc, char *argv[])
case 'X':
getcross = 1;
break;
+ case 'y':
+ get_ext_any = atoi(optarg);
+ if (get_ext_any < 1 || get_ext_any > PTP_MAX_SAMPLES) {
+ fprintf(stderr,
+ "number of extended-any timestamp samples must be between 1 and %d; was asked for %d\n",
+ PTP_MAX_SAMPLES, get_ext_any);
+ return -1;
+ }
+ break;
+ case 'Y':
+ if (!strcasecmp(optarg, "cycles"))
+ ext_any_type = PTP_TS_CYCLES;
+ else if (!strcasecmp(optarg, "real"))
+ ext_any_type = PTP_TS_REAL;
+ else if (!strcasecmp(optarg, "mono"))
+ ext_any_type = PTP_TS_MONO;
+ else if (!strcasecmp(optarg, "raw"))
+ ext_any_type = PTP_TS_RAW;
+ else {
+ fprintf(stderr,
+ "type needs to be one of cycles,real,mono,raw only; was given %s\n",
+ optarg);
+ return -1;
+ }
+ break;
case 'z':
flagtest = 1;
break;
@@ -286,6 +323,14 @@ int main(int argc, char *argv[])
}
}
+ /* For ptp_sys_offset_any both options 'y' and 'Y' must be given */
+ if (get_ext_any > 0 && ext_any_type == -1) {
+ fprintf(stderr,
+ "For extended-any TS both options -y, and -Y are required.\n");
+ usage(progname);
+ return -1;
+ }
+
fd = open(device, O_RDWR);
if (fd < 0) {
fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
@@ -604,6 +649,36 @@ int main(int argc, char *argv[])
free(xts);
}
+ if (get_ext_any) {
+ ats = calloc(1, sizeof(*ats));
+ if (!ats) {
+ perror("calloc");
+ return -1;
+ }
+
+ ats->n_samples = get_ext_any;
+ ats->ts_type = ext_any_type;
+
+ if (ioctl(fd, PTP_SYS_OFFSET_ANY2, ats)) {
+ perror("PTP_SYS_OFFSET_ANY2");
+ } else {
+ printf("extended-any timestamp request returned %d samples\n",
+ get_ext_any);
+
+ for (i = 0; i < get_ext_any; i++) {
+ printf("sample #%2d: %s before: %lld.%09u\n",
+ i, time_base_arr[ext_any_type],
+ ats->ts[i][0].sec, ats->ts[i][0].nsec);
+ printf(" phc time: %lld.%09u\n",
+ ats->ts[i][1].sec, ats->ts[i][1].nsec);
+ printf(" %s after: %lld.%09u\n",
+ time_base_arr[ext_any_type],
+ ats->ts[i][2].sec, ats->ts[i][2].nsec);
+ }
+ }
+
+ free(ats);
+ }
close(fd);
return 0;
}
--
2.42.0.582.g8ccd20d70d-goog
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