[dpdk-dev] [PATCH v5 06/15] net/dpaa2: switch timestamp to dynamic mbuf field

[Thomas Monjalon <thomas@monjalon.net>]

The mbuf timestamp is moved to a dynamic field
in order to allow removal of the deprecated static field.
The related mbuf flag is also replaced.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 drivers/net/dpaa2/dpaa2_ethdev.c | 20 ++++++++++++++++++++
 drivers/net/dpaa2/dpaa2_ethdev.h |  2 ++
 drivers/net/dpaa2/dpaa2_rxtx.c   | 25 ++++++++++++++++++-------
 3 files changed, 40 insertions(+), 7 deletions(-)

diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index 04e60c56f2..ff368174bd 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -8,6 +8,7 @@
 #include <time.h>
 #include <net/if.h>
 
+#include <rte_bitops.h>
 #include <rte_mbuf.h>
 #include <rte_ethdev_driver.h>
 #include <rte_malloc.h>
@@ -65,6 +66,8 @@ static uint64_t dev_tx_offloads_nodis =
 
 /* enable timestamp in mbuf */
 bool dpaa2_enable_ts[RTE_MAX_ETHPORTS];
+uint64_t dpaa2_timestamp_rx_dynflag;
+int dpaa2_timestamp_dynfield_offset = -1;
 
 struct rte_dpaa2_xstats_name_off {
 	char name[RTE_ETH_XSTATS_NAME_SIZE];
@@ -505,6 +508,7 @@ dpaa2_eth_dev_configure(struct rte_eth_dev *dev)
 	struct rte_eth_conf *eth_conf = &dev->data->dev_conf;
 	uint64_t rx_offloads = eth_conf->rxmode.offloads;
 	uint64_t tx_offloads = eth_conf->txmode.offloads;
+	int timestamp_rx_dynflag_offset;
 	int rx_l3_csum_offload = false;
 	int rx_l4_csum_offload = false;
 	int tx_l3_csum_offload = false;
@@ -587,7 +591,23 @@ dpaa2_eth_dev_configure(struct rte_eth_dev *dev)
 #if !defined(RTE_LIBRTE_IEEE1588)
 	if (rx_offloads & DEV_RX_OFFLOAD_TIMESTAMP)
 #endif
+	{
+		dpaa2_timestamp_dynfield_offset = rte_mbuf_dynfield_lookup(
+				RTE_MBUF_DYNFIELD_TIMESTAMP_NAME, NULL);
+		if (dpaa2_timestamp_dynfield_offset < 0) {
+			DPAA2_PMD_ERR("Error to lookup timestamp field");
+			return -rte_errno;
+		}
+		timestamp_rx_dynflag_offset = rte_mbuf_dynflag_lookup(
+				RTE_MBUF_DYNFLAG_RX_TIMESTAMP_NAME, NULL);
+		if (timestamp_rx_dynflag_offset < 0) {
+			DPAA2_PMD_ERR("Error to lookup Rx timestamp flag");
+			return -rte_errno;
+		}
+		dpaa2_timestamp_rx_dynflag =
+				RTE_BIT64(timestamp_rx_dynflag_offset);
 		dpaa2_enable_ts[dev->data->port_id] = true;
+	}
 
 	if (tx_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM)
 		tx_l3_csum_offload = true;
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.h b/drivers/net/dpaa2/dpaa2_ethdev.h
index 94cf253827..8d82f74684 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.h
+++ b/drivers/net/dpaa2/dpaa2_ethdev.h
@@ -92,6 +92,8 @@
 
 /* enable timestamp in mbuf*/
 extern bool dpaa2_enable_ts[];
+extern uint64_t dpaa2_timestamp_rx_dynflag;
+extern int dpaa2_timestamp_dynfield_offset;
 
 #define DPAA2_QOS_TABLE_RECONFIGURE	1
 #define DPAA2_FS_TABLE_RECONFIGURE	2
diff --git a/drivers/net/dpaa2/dpaa2_rxtx.c b/drivers/net/dpaa2/dpaa2_rxtx.c
index 4dd1d5f578..cef70bfabe 100644
--- a/drivers/net/dpaa2/dpaa2_rxtx.c
+++ b/drivers/net/dpaa2/dpaa2_rxtx.c
@@ -31,6 +31,13 @@ dpaa2_dev_rx_parse_slow(struct rte_mbuf *mbuf,
 
 static void enable_tx_tstamp(struct qbman_fd *fd) __rte_unused;
 
+static inline rte_mbuf_timestamp_t *
+dpaa2_timestamp_dynfield(struct rte_mbuf *mbuf)
+{
+	return RTE_MBUF_DYNFIELD(mbuf,
+		dpaa2_timestamp_dynfield_offset, rte_mbuf_timestamp_t *);
+}
+
 #define DPAA2_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid)  do { \
 	DPAA2_SET_FD_ADDR(_fd, DPAA2_MBUF_VADDR_TO_IOVA(_mbuf)); \
 	DPAA2_SET_FD_LEN(_fd, _mbuf->data_len); \
@@ -109,9 +116,10 @@ dpaa2_dev_rx_parse_new(struct rte_mbuf *m, const struct qbman_fd *fd,
 	m->ol_flags |= PKT_RX_RSS_HASH;
 
 	if (dpaa2_enable_ts[m->port]) {
-		m->timestamp = annotation->word2;
-		m->ol_flags |= PKT_RX_TIMESTAMP;
-		DPAA2_PMD_DP_DEBUG("pkt timestamp:0x%" PRIx64 "", m->timestamp);
+		*dpaa2_timestamp_dynfield(m) = annotation->word2;
+		m->ol_flags |= dpaa2_timestamp_rx_dynflag;
+		DPAA2_PMD_DP_DEBUG("pkt timestamp:0x%" PRIx64 "",
+				*dpaa2_timestamp_dynfield(m));
 	}
 
 	DPAA2_PMD_DP_DEBUG("HW frc = 0x%x\t packet type =0x%x "
@@ -223,9 +231,12 @@ dpaa2_dev_rx_parse(struct rte_mbuf *mbuf, void *hw_annot_addr)
 	else if (BIT_ISSET_AT_POS(annotation->word8, DPAA2_ETH_FAS_L4CE))
 		mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
 
-	mbuf->ol_flags |= PKT_RX_TIMESTAMP;
-	mbuf->timestamp = annotation->word2;
-	DPAA2_PMD_DP_DEBUG("pkt timestamp: 0x%" PRIx64 "", mbuf->timestamp);
+	if (dpaa2_enable_ts[mbuf->port]) {
+		*dpaa2_timestamp_dynfield(mbuf) = annotation->word2;
+		mbuf->ol_flags |= dpaa2_timestamp_rx_dynflag;
+		DPAA2_PMD_DP_DEBUG("pkt timestamp: 0x%" PRIx64 "",
+				*dpaa2_timestamp_dynfield(mbuf));
+	}
 
 	/* Check detailed parsing requirement */
 	if (annotation->word3 & 0x7FFFFC3FFFF)
@@ -629,7 +640,7 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 		else
 			bufs[num_rx] = eth_fd_to_mbuf(fd, eth_data->port_id);
 #if defined(RTE_LIBRTE_IEEE1588)
-		priv->rx_timestamp = bufs[num_rx]->timestamp;
+		priv->rx_timestamp = *dpaa2_timestamp_dynfield(bufs[num_rx]);
 #endif
 
 		if (eth_data->dev_conf.rxmode.offloads &
-- 
2.28.0