@@ -1621,7 +1621,6 @@ test_get_rx_ol_flag_name(void)
 		VAL_NAME(PKT_RX_FDIR_FLX),
 		VAL_NAME(PKT_RX_QINQ_STRIPPED),
 		VAL_NAME(PKT_RX_LRO),
-		VAL_NAME(PKT_RX_TIMESTAMP),
 		VAL_NAME(PKT_RX_SEC_OFFLOAD),
 		VAL_NAME(PKT_RX_SEC_OFFLOAD_FAILED),
 		VAL_NAME(PKT_RX_OUTER_L4_CKSUM_BAD),

@@ -86,7 +86,6 @@ Deprecation Notices
   `this presentation <https://www.youtube.com/watch?v=Ttl6MlhmzWY>`_.
   The following static fields will be moved as dynamic:
 
-  - ``timestamp``
   - ``seqn``
 
   As a consequence, the layout of the ``struct rte_mbuf`` will be re-arranged,

@@ -429,6 +429,10 @@ API Changes
 * mbuf: Removed the unioned fields ``userdata`` and ``udata64``
   from the structure ``rte_mbuf``. It is replaced with dynamic fields.
 
+* mbuf: Removed the field ``timestamp`` from the structure ``rte_mbuf``.
+  It is replaced with the dynamic field RTE_MBUF_DYNFIELD_TIMESTAMP_NAME
+  which was previously used only for Tx.
+
 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
   replaced with a private enum in the PCI subsystem.
 

@@ -1345,6 +1345,8 @@ struct rte_eth_conf {
 #define DEV_RX_OFFLOAD_JUMBO_FRAME	0x00000800
 #define DEV_RX_OFFLOAD_SCATTER		0x00002000
 /**
+ * Timestamp is set by the driver in RTE_MBUF_DYNFIELD_TIMESTAMP_NAME
+ * and RTE_MBUF_DYNFLAG_RX_TIMESTAMP_NAME is set in ol_flags.
  * The mbuf field and flag are registered when the offload is configured.
  */
 #define DEV_RX_OFFLOAD_TIMESTAMP	0x00004000

@@ -4654,7 +4656,7 @@ int rte_eth_timesync_write_time(uint16_t port_id, const struct timespec *time);
  * rte_eth_read_clock(port, base_clock);
  *
  * Then, convert the raw mbuf timestamp with:
- * base_time_sec + (double)(mbuf->timestamp - base_clock) / freq;
+ * base_time_sec + (double)(*timestamp_dynfield(mbuf) - base_clock) / freq;
  *
  * This simple example will not provide a very good accuracy. One must
  * at least measure multiple times the frequency and do a regression.

@@ -764,7 +764,6 @@ const char *rte_get_rx_ol_flag_name(uint64_t mask)
 	case PKT_RX_QINQ_STRIPPED: return "PKT_RX_QINQ_STRIPPED";
 	case PKT_RX_QINQ: return "PKT_RX_QINQ";
 	case PKT_RX_LRO: return "PKT_RX_LRO";
-	case PKT_RX_TIMESTAMP: return "PKT_RX_TIMESTAMP";
 	case PKT_RX_SEC_OFFLOAD: return "PKT_RX_SEC_OFFLOAD";
 	case PKT_RX_SEC_OFFLOAD_FAILED: return "PKT_RX_SEC_OFFLOAD_FAILED";
 	case PKT_RX_OUTER_L4_CKSUM_BAD: return "PKT_RX_OUTER_L4_CKSUM_BAD";

@@ -808,7 +807,6 @@ rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen)
 		{ PKT_RX_FDIR_FLX, PKT_RX_FDIR_FLX, NULL },
 		{ PKT_RX_QINQ_STRIPPED, PKT_RX_QINQ_STRIPPED, NULL },
 		{ PKT_RX_LRO, PKT_RX_LRO, NULL },
-		{ PKT_RX_TIMESTAMP, PKT_RX_TIMESTAMP, NULL },
 		{ PKT_RX_SEC_OFFLOAD, PKT_RX_SEC_OFFLOAD, NULL },
 		{ PKT_RX_SEC_OFFLOAD_FAILED, PKT_RX_SEC_OFFLOAD_FAILED, NULL },
 		{ PKT_RX_QINQ, PKT_RX_QINQ, NULL },

@@ -1108,7 +1108,6 @@ __rte_pktmbuf_copy_hdr(struct rte_mbuf *mdst, const struct rte_mbuf *msrc)
 	mdst->tx_offload = msrc->tx_offload;
 	mdst->hash = msrc->hash;
 	mdst->packet_type = msrc->packet_type;
-	mdst->timestamp = msrc->timestamp;
 	rte_mbuf_dynfield_copy(mdst, msrc);
 }
 

@@ -149,11 +149,6 @@ extern "C" {
  */
 #define PKT_RX_LRO           (1ULL << 16)
 
-/**
- * Indicate that the timestamp field in the mbuf is valid.
- */
-#define PKT_RX_TIMESTAMP     (1ULL << 17)
-
 /**
  * Indicate that security offload processing was applied on the RX packet.
  */

@@ -589,12 +584,7 @@ struct rte_mbuf {
 
 	uint16_t buf_len;         /**< Length of segment buffer. */
 
-	/** Valid if PKT_RX_TIMESTAMP is set. The unit and time reference
-	 * are not normalized but are always the same for a given port.
-	 * Some devices allow to query rte_eth_read_clock that will return the
-	 * current device timestamp.
-	 */
-	uint64_t timestamp;
+	uint64_t unused;
 
 	/* second cache line - fields only used in slow path or on TX */
 	RTE_MARKER cacheline1 __rte_cache_min_aligned;