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testptp: add option to enable external timestamping edges

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Some drivers (e.g. ice) don't enable any edges by default when external
timestamping is requested by the PTP_EXTTS_REQUEST ioctl, which makes
testptp -e unusable for testing hardware supported by these drivers.

Add -E option to specify if the rising, falling, or both edges should
be enabled by the ioctl.

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Miroslav Lichvar
2025-06-19 15:53:42 +02:00
committed by David S. Miller
parent 5e95c0a3a5
commit 27390db959
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
tools/testing/selftests/ptp/testptp.c
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@@ -120,6 +120,7 @@ static void usage(char *progname)
" -c query the ptp clock's capabilities\n"
" -d name device to open\n"
" -e val read 'val' external time stamp events\n"
" -E val enable rising (1), falling (2), or both (3) edges\n"
" -f val adjust the ptp clock frequency by 'val' ppb\n"
" -F chan Enable single channel mask and keep device open for debugfs verification.\n"
" -g get the ptp clock time\n"
@@ -178,6 +179,7 @@ int main(int argc, char *argv[])
int adjphase = 0;
int capabilities = 0;
int extts = 0;
int edge = 0;
int flagtest = 0;
int gettime = 0;
int index = 0;
@@ -202,7 +204,7 @@ 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:F:ghH:i:k:lL:n:o:p:P:rsSt:T:w:x:Xy:z"))) {
while (EOF != (c = getopt(argc, argv, "cd:e:E:f:F:ghH:i:k:lL:n:o:p:P:rsSt:T:w:x:Xy:z"))) {
switch (c) {
case 'c':
capabilities = 1;
@@ -213,6 +215,11 @@ int main(int argc, char *argv[])
case 'e':
extts = atoi(optarg);
break;
case 'E':
edge = atoi(optarg);
edge = (edge & 1 ? PTP_RISING_EDGE : 0) |
(edge & 2 ? PTP_FALLING_EDGE : 0);
break;
case 'f':
adjfreq = atoi(optarg);
break;
@@ -444,7 +451,7 @@ int main(int argc, char *argv[])
if (!readonly) {
memset(&extts_request, 0, sizeof(extts_request));
extts_request.index = index;
extts_request.flags = PTP_ENABLE_FEATURE;
extts_request.flags = PTP_ENABLE_FEATURE | edge;
if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
perror("PTP_EXTTS_REQUEST");
extts = 0;