Use start time and device frequency to translate raw Rx hardware
timestamps into nanoseconds.
Signed-off-by: Patrick Keroulas <patrick.kerou...@radio-canada.ca>
---
lib/librte_pdump/rte_pdump.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/lib/librte_pdump/rte_pdump.c b/lib/librte_pdump/rte_pdump.c
index b3c8d5ce43..8fd7e13af5 100644
--- a/lib/librte_pdump/rte_pdump.c
+++ b/lib/librte_pdump/rte_pdump.c
@@ -2,6 +2,8 @@
* Copyright(c) 2016-2018 Intel Corporation
*/
+#include <sys/time.h>
+
#include <rte_memcpy.h>
#include <rte_mbuf.h>
#include <rte_ethdev.h>
@@ -69,6 +71,21 @@ static struct pdump_rxtx_cbs {
} rx_cbs[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT],
tx_cbs[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT];
+static uint64_t hz;
+static uint64_t start_time;
+static uint64_t start_cycles;
+
+static inline void
+pdump_ts_to_ns(struct rte_mbuf **pkts, uint16_t nb_pkts)
+{
+ unsigned int i;
+
+ for (i = 0; i < nb_pkts; i++) {
+ if ((pkts[i]->ol_flags & PKT_RX_TIMESTAMP) && hz)
+ pkts[i]->timestamp = start_time +
+ (pkts[i]->timestamp - start_cycles) * NS_PER_S
/ hz;
+ }
+}
static inline void
pdump_copy(struct rte_mbuf **pkts, uint16_t nb_pkts, void *user_params)
@@ -107,6 +124,7 @@ pdump_rx(uint16_t port __rte_unused, uint16_t qidx
__rte_unused,
uint16_t max_pkts __rte_unused,
void *user_params)
{
+ pdump_ts_to_ns(pkts, nb_pkts);
pdump_copy(pkts, nb_pkts, user_params);
return nb_pkts;
}
@@ -131,6 +149,13 @@ pdump_register_rx_callbacks(uint16_t end_q, uint16_t port,
uint16_t queue,
for (; qid < end_q; qid++) {
cbs = &rx_cbs[port][qid];
if (cbs && operation == ENABLE) {
+ struct timeval now;
+
+ rte_eth_read_clock(port, &start_cycles);
+ rte_eth_get_clock_freq(port, &hz);
+ gettimeofday(&now, NULL);
+ start_time = now.tv_sec * NS_PER_S + now.tv_usec * 1000;
+
if (cbs->cb) {
PDUMP_LOG(ERR,
"failed to add rx callback for port=%d "
--
2.17.1
