[RFC 2/3] net/af_packet: use SW stats helper

[Stephen Hemminger <stephen@networkplumber.org>]

Use the new generic SW stats.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 97 ++++-------------------
 1 file changed, 16 insertions(+), 81 deletions(-)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index 397a32db58..8fac37a1b1 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -10,6 +10,7 @@
 #include <rte_mbuf.h>
 #include <ethdev_driver.h>
 #include <ethdev_vdev.h>
+#include <ethdev_swstats.h>
 #include <rte_malloc.h>
 #include <rte_kvargs.h>
 #include <bus_vdev_driver.h>
@@ -29,6 +30,7 @@
 #include <unistd.h>
 #include <poll.h>
 
+
 #define ETH_AF_PACKET_IFACE_ARG		"iface"
 #define ETH_AF_PACKET_NUM_Q_ARG		"qpairs"
 #define ETH_AF_PACKET_BLOCKSIZE_ARG	"blocksz"
@@ -40,6 +42,8 @@
 #define DFLT_FRAME_COUNT	(1 << 9)
 
 struct pkt_rx_queue {
+	struct rte_eth_qsw_stats stats;	/* must be first */
+
 	int sockfd;
 
 	struct iovec *rd;
@@ -50,12 +54,11 @@ struct pkt_rx_queue {
 	struct rte_mempool *mb_pool;
 	uint16_t in_port;
 	uint8_t vlan_strip;
-
-	volatile unsigned long rx_pkts;
-	volatile unsigned long rx_bytes;
 };
 
 struct pkt_tx_queue {
+	struct rte_eth_qsw_stats stats;	/* must be first */
+
 	int sockfd;
 	unsigned int frame_data_size;
 
@@ -63,10 +66,6 @@ struct pkt_tx_queue {
 	uint8_t *map;
 	unsigned int framecount;
 	unsigned int framenum;
-
-	volatile unsigned long tx_pkts;
-	volatile unsigned long err_pkts;
-	volatile unsigned long tx_bytes;
 };
 
 struct pmd_internals {
@@ -118,8 +117,6 @@ eth_af_packet_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	struct rte_mbuf *mbuf;
 	uint8_t *pbuf;
 	struct pkt_rx_queue *pkt_q = queue;
-	uint16_t num_rx = 0;
-	unsigned long num_rx_bytes = 0;
 	unsigned int framecount, framenum;
 
 	if (unlikely(nb_pkts == 0))
@@ -164,13 +161,11 @@ eth_af_packet_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 
 		/* account for the receive frame */
 		bufs[i] = mbuf;
-		num_rx++;
-		num_rx_bytes += mbuf->pkt_len;
+		rte_eth_qsw_update(&pkt_q->stats, mbuf);
 	}
 	pkt_q->framenum = framenum;
-	pkt_q->rx_pkts += num_rx;
-	pkt_q->rx_bytes += num_rx_bytes;
-	return num_rx;
+
+	return i;
 }
 
 /*
@@ -205,8 +200,6 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	unsigned int framecount, framenum;
 	struct pollfd pfd;
 	struct pkt_tx_queue *pkt_q = queue;
-	uint16_t num_tx = 0;
-	unsigned long num_tx_bytes = 0;
 	int i;
 
 	if (unlikely(nb_pkts == 0))
@@ -285,8 +278,7 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 			framenum = 0;
 		ppd = (struct tpacket2_hdr *) pkt_q->rd[framenum].iov_base;
 
-		num_tx++;
-		num_tx_bytes += mbuf->pkt_len;
+		rte_eth_qsw_update(&pkt_q->stats, mbuf);
 		rte_pktmbuf_free(mbuf);
 	}
 
@@ -298,15 +290,9 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 		 * packets will be considered successful even though only some
 		 * are sent.
 		 */
-
-		num_tx = 0;
-		num_tx_bytes = 0;
 	}
 
 	pkt_q->framenum = framenum;
-	pkt_q->tx_pkts += num_tx;
-	pkt_q->err_pkts += i - num_tx;
-	pkt_q->tx_bytes += num_tx_bytes;
 	return i;
 }
 
@@ -385,61 +371,6 @@ eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	return 0;
 }
 
-static int
-eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
-{
-	unsigned i, imax;
-	unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
-	unsigned long rx_bytes_total = 0, tx_bytes_total = 0;
-	const struct pmd_internals *internal = dev->data->dev_private;
-
-	imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
-	        internal->nb_queues : RTE_ETHDEV_QUEUE_STAT_CNTRS);
-	for (i = 0; i < imax; i++) {
-		igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
-		igb_stats->q_ibytes[i] = internal->rx_queue[i].rx_bytes;
-		rx_total += igb_stats->q_ipackets[i];
-		rx_bytes_total += igb_stats->q_ibytes[i];
-	}
-
-	imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
-	        internal->nb_queues : RTE_ETHDEV_QUEUE_STAT_CNTRS);
-	for (i = 0; i < imax; i++) {
-		igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
-		igb_stats->q_obytes[i] = internal->tx_queue[i].tx_bytes;
-		tx_total += igb_stats->q_opackets[i];
-		tx_err_total += internal->tx_queue[i].err_pkts;
-		tx_bytes_total += igb_stats->q_obytes[i];
-	}
-
-	igb_stats->ipackets = rx_total;
-	igb_stats->ibytes = rx_bytes_total;
-	igb_stats->opackets = tx_total;
-	igb_stats->oerrors = tx_err_total;
-	igb_stats->obytes = tx_bytes_total;
-	return 0;
-}
-
-static int
-eth_stats_reset(struct rte_eth_dev *dev)
-{
-	unsigned i;
-	struct pmd_internals *internal = dev->data->dev_private;
-
-	for (i = 0; i < internal->nb_queues; i++) {
-		internal->rx_queue[i].rx_pkts = 0;
-		internal->rx_queue[i].rx_bytes = 0;
-	}
-
-	for (i = 0; i < internal->nb_queues; i++) {
-		internal->tx_queue[i].tx_pkts = 0;
-		internal->tx_queue[i].err_pkts = 0;
-		internal->tx_queue[i].tx_bytes = 0;
-	}
-
-	return 0;
-}
-
 static int
 eth_dev_close(struct rte_eth_dev *dev)
 {
@@ -634,8 +565,12 @@ static const struct eth_dev_ops ops = {
 	.rx_queue_setup = eth_rx_queue_setup,
 	.tx_queue_setup = eth_tx_queue_setup,
 	.link_update = eth_link_update,
-	.stats_get = eth_stats_get,
-	.stats_reset = eth_stats_reset,
+
+	.stats_get = rte_eth_qsw_stats_get,
+	.stats_reset = rte_eth_qsw_stats_reset,
+	.xstats_get = rte_eth_qsw_xstats_get,
+	.xstats_get_names = rte_eth_qsw_xstats_get_names,
+	.xstats_reset = rte_eth_qsw_stats_reset,
 };
 
 /*
-- 
2.43.0