[PATCH 4/7] net/ice: timestamp all received packets when PTP is enabled

[Dawid Wesierski]

From: Marek Kasiewicz <marek.kasiewicz at intel.com>

When PTP is enabled on the ICE PMD, hardware RX timestamps are only
applied to packets classified as IEEE 1588 (Ethertype 0x88F7). This
prevents applications from obtaining hardware timestamps on regular
UDP/IP traffic.

Remove the TIMESYNC packet type filter so that all received packets
get hardware timestamps when PTP is enabled. This is required for
time-sensitive networking applications that need per-packet arrival
timing on media traffic, such as ST 2110-21 receiver compliance
monitoring.

The change affects all three RX paths: scan, scattered, and single
packet receive functions.


Signed-off-by: Marek Kasiewicz <marek.kasiewicz at intel.com>
Signed-off-by: Dawid Wesierski <dawid.wesierski at intel.com>
---
 drivers/net/intel/ice/ice_rxtx.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/intel/ice/ice_rxtx.c b/drivers/net/intel/ice/ice_rxtx.c
index c4b5454c53..8d709125f7 100644
--- a/drivers/net/intel/ice/ice_rxtx.c
+++ b/drivers/net/intel/ice/ice_rxtx.c
@@ -2023,8 +2023,7 @@ ice_rx_scan_hw_ring(struct ci_rx_queue *rxq)
 				pkt_flags |= rxq->ts_flag;
 			}
 
-			if (ad->ptp_ena && ((mb->packet_type &
-			    RTE_PTYPE_L2_MASK) == RTE_PTYPE_L2_ETHER_TIMESYNC)) {
+			if (ad->ptp_ena) {
 				rxq->time_high =
 				   rte_le_to_cpu_32(rxdp[j].wb.flex_ts.ts_high);
 				mb->timesync = rxq->queue_id;
@@ -2390,8 +2389,7 @@ ice_recv_scattered_pkts(void *rx_queue,
 			pkt_flags |= rxq->ts_flag;
 		}
 
-		if (ad->ptp_ena && ((first_seg->packet_type & RTE_PTYPE_L2_MASK)
-		    == RTE_PTYPE_L2_ETHER_TIMESYNC)) {
+		if (ad->ptp_ena) {
 			rxq->time_high =
 			   rte_le_to_cpu_32(rxd.wb.flex_ts.ts_high);
 			first_seg->timesync = rxq->queue_id;
@@ -2881,8 +2879,7 @@ ice_recv_pkts(void *rx_queue,
 			pkt_flags |= rxq->ts_flag;
 		}
 
-		if (ad->ptp_ena && ((rxm->packet_type & RTE_PTYPE_L2_MASK) ==
-		    RTE_PTYPE_L2_ETHER_TIMESYNC)) {
+		if (ad->ptp_ena) {
 			rxq->time_high =
 			   rte_le_to_cpu_32(rxd.wb.flex_ts.ts_high);
 			rxm->timesync = rxq->queue_id;
-- 
2.47.3

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