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authorAlex Maftei <alex.maftei@amd.com>2023-07-26 00:53:33 +0300
committerDavid S. Miller <davem@davemloft.net>2023-07-28 12:59:40 +0300
commitc8ba75c4eb846888f8f2730690b99cb5bf7b337c (patch)
tree61989f6d60d5d88f2c5a984267faceed291a1f4e
parent8ad228b1abe97b92100dcaef74cda86378874698 (diff)
downloadlinux-c8ba75c4eb846888f8f2730690b99cb5bf7b337c.tar.xz
selftests/ptp: Add -x option for testing PTP_SYS_OFFSET_EXTENDED
The -x option (where 'x' stands for eXtended) takes an argument which represents the number of samples to request from the PTP device. The help message will display the maximum number of samples allowed. Providing an invalid argument will also display the maximum number of samples allowed. Signed-off-by: Alex Maftei <alex.maftei@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--tools/testing/selftests/ptp/testptp.c44
1 files changed, 42 insertions, 2 deletions
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index e9438a1862ad..71ceb6444af4 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -143,8 +143,9 @@ static void usage(char *progname)
" -S set the system time from the ptp clock time\n"
" -t val shift the ptp clock time by 'val' seconds\n"
" -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"
" -z test combinations of rising/falling external time stamp flags\n",
- progname);
+ progname, PTP_MAX_SAMPLES);
}
int main(int argc, char *argv[])
@@ -158,6 +159,7 @@ int main(int argc, char *argv[])
struct timex tx;
struct ptp_clock_time *pct;
struct ptp_sys_offset *sysoff;
+ struct ptp_sys_offset_extended *soe;
char *progname;
unsigned int i;
@@ -176,6 +178,7 @@ int main(int argc, char *argv[])
int index = 0;
int list_pins = 0;
int pct_offset = 0;
+ int getextended = 0;
int n_samples = 0;
int pin_index = -1, pin_func;
int pps = -1;
@@ -190,7 +193,7 @@ 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:z"))) {
+ while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:n:o:p:P:sSt:T:w:x:z"))) {
switch (c) {
case 'c':
capabilities = 1;
@@ -255,6 +258,15 @@ int main(int argc, char *argv[])
case 'w':
pulsewidth = atoi(optarg);
break;
+ case 'x':
+ getextended = atoi(optarg);
+ if (getextended < 1 || getextended > PTP_MAX_SAMPLES) {
+ fprintf(stderr,
+ "number of extended timestamp samples must be between 1 and %d; was asked for %d\n",
+ PTP_MAX_SAMPLES, getextended);
+ return -1;
+ }
+ break;
case 'z':
flagtest = 1;
break;
@@ -535,6 +547,34 @@ int main(int argc, char *argv[])
free(sysoff);
}
+ if (getextended) {
+ soe = calloc(1, sizeof(*soe));
+ if (!soe) {
+ perror("calloc");
+ return -1;
+ }
+
+ soe->n_samples = getextended;
+
+ if (ioctl(fd, PTP_SYS_OFFSET_EXTENDED, soe)) {
+ perror("PTP_SYS_OFFSET_EXTENDED");
+ } else {
+ printf("extended timestamp request returned %d samples\n",
+ getextended);
+
+ for (i = 0; i < getextended; i++) {
+ printf("sample #%2d: system time before: %lld.%09u\n",
+ i, soe->ts[i][0].sec, soe->ts[i][0].nsec);
+ printf(" phc time: %lld.%09u\n",
+ soe->ts[i][1].sec, soe->ts[i][1].nsec);
+ printf(" system time after: %lld.%09u\n",
+ soe->ts[i][2].sec, soe->ts[i][2].nsec);
+ }
+ }
+
+ free(soe);
+ }
+
close(fd);
return 0;
}