[dpdk-dev] [PATCH 1/4] ixgbe: expose extended error statistics

Maryam Tahhan maryam.tahhan at intel.com
Fri Jun 5 19:35:02 CEST 2015


Implement xstats_get() and xstats_reset() in dev_ops for ixgbe to expose
detailed error statistics to DPDK applications.

Signed-off-by: Maryam Tahhan <maryam.tahhan at intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 160 +++++++++++++++++++++++++++++++++------
 1 file changed, 138 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 0d9f9b2..f789aba 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -131,7 +131,10 @@ static int ixgbe_dev_link_update(struct rte_eth_dev *dev,
 				int wait_to_complete);
 static void ixgbe_dev_stats_get(struct rte_eth_dev *dev,
 				struct rte_eth_stats *stats);
+static int ixgbe_dev_xstats_get(struct rte_eth_dev *dev,
+				struct rte_eth_xstats *xstats, unsigned n);
 static void ixgbe_dev_stats_reset(struct rte_eth_dev *dev);
+static void ixgbe_dev_xstats_reset(struct rte_eth_dev *dev);
 static int ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev,
 					     uint16_t queue_id,
 					     uint8_t stat_idx,
@@ -330,7 +333,9 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = {
 	.allmulticast_disable = ixgbe_dev_allmulticast_disable,
 	.link_update          = ixgbe_dev_link_update,
 	.stats_get            = ixgbe_dev_stats_get,
+	.xstats_get           = ixgbe_dev_xstats_get,
 	.stats_reset          = ixgbe_dev_stats_reset,
+	.xstats_reset         = ixgbe_dev_xstats_reset,
 	.queue_stats_mapping_set = ixgbe_dev_queue_stats_mapping_set,
 	.dev_infos_get        = ixgbe_dev_info_get,
 	.mtu_set              = ixgbe_dev_mtu_set,
@@ -408,6 +413,34 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = {
 	.mac_addr_remove      = ixgbevf_remove_mac_addr,
 };
 
+/* store statistics names and its offset in stats structure  */
+struct rte_ixgbe_xstats_name_off {
+	char name[RTE_ETH_XSTATS_NAME_SIZE];
+	unsigned offset;
+};
+
+static const struct rte_ixgbe_xstats_name_off rte_ixgbe_stats_strings[] = {
+	{"rx_illegal_byte_err", offsetof(struct ixgbe_hw_stats, errbc)},
+	{"rx_len_err", offsetof(struct ixgbe_hw_stats, rlec)},
+	{"rx_undersize_count", offsetof(struct ixgbe_hw_stats, ruc)},
+	{"rx_oversize_count", offsetof(struct ixgbe_hw_stats, roc)},
+	{"rx_fragment_count", offsetof(struct ixgbe_hw_stats, rfc)},
+	{"rx_jabber_count", offsetof(struct ixgbe_hw_stats, rjc)},
+	{"l3_l4_xsum_error", offsetof(struct ixgbe_hw_stats, xec)},
+	{"mac_local_fault", offsetof(struct ixgbe_hw_stats, mlfc)},
+	{"mac_remote_fault", offsetof(struct ixgbe_hw_stats, mrfc)},
+	{"mac_short_pkt_discard", offsetof(struct ixgbe_hw_stats, mspdc)},
+	{"fccrc_error", offsetof(struct ixgbe_hw_stats, fccrc)},
+	{"fcoe_drop", offsetof(struct ixgbe_hw_stats, fcoerpdc)},
+	{"fc_last_error", offsetof(struct ixgbe_hw_stats, fclast)},
+	{"rx_multicast_packets", offsetof(struct ixgbe_hw_stats, mprc)},
+	{"rx_broadcast_packets", offsetof(struct ixgbe_hw_stats, bprc)},
+	{"mgmt_pkts_dropped", offsetof(struct ixgbe_hw_stats, mngpdc)},
+};
+
+#define RTE_NB_XSTATS (sizeof(rte_ixgbe_stats_strings) /	\
+		sizeof(rte_ixgbe_stats_strings[0]))
+
 /**
  * Atomically reads the link status information from global
  * structure rte_eth_dev.
@@ -1739,26 +1772,18 @@ ixgbe_dev_close(struct rte_eth_dev *dev)
 	ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
 }
 
-/*
- * This function is based on ixgbe_update_stats_counters() in base/ixgbe.c
- */
 static void
-ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats *hw_stats,
+			   uint64_t *total_missed_rx, uint64_t *total_qbrc,
+			   uint64_t *total_qprc, uint64_t *rxnfgpc,
+			   uint64_t *txdgpc)
 {
-	struct ixgbe_hw *hw =
-			IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct ixgbe_hw_stats *hw_stats =
-			IXGBE_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
 	uint32_t bprc, lxon, lxoff, total;
-	uint64_t total_missed_rx, total_qbrc, total_qprc;
 	unsigned i;
 
-	total_missed_rx = 0;
-	total_qbrc = 0;
-	total_qprc = 0;
-
 	hw_stats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
 	hw_stats->illerrc += IXGBE_READ_REG(hw, IXGBE_ILLERRC);
+
 	hw_stats->errbc += IXGBE_READ_REG(hw, IXGBE_ERRBC);
 	hw_stats->mspdc += IXGBE_READ_REG(hw, IXGBE_MSPDC);
 
@@ -1768,7 +1793,7 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 		/* global total per queue */
 		hw_stats->mpc[i] += mp;
 		/* Running comprehensive total for stats display */
-		total_missed_rx += hw_stats->mpc[i];
+		*total_missed_rx += hw_stats->mpc[i];
 		if (hw->mac.type == ixgbe_mac_82598EB)
 			hw_stats->rnbc[i] +=
 			    IXGBE_READ_REG(hw, IXGBE_RNBC(i));
@@ -1794,15 +1819,18 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 		    ((uint64_t)IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)) << 32);
 		hw_stats->qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
 
-		total_qprc += hw_stats->qprc[i];
-		total_qbrc += hw_stats->qbrc[i];
+		*total_qprc += hw_stats->qprc[i];
+		*total_qbrc += hw_stats->qbrc[i];
 	}
+
 	hw_stats->mlfc += IXGBE_READ_REG(hw, IXGBE_MLFC);
 	hw_stats->mrfc += IXGBE_READ_REG(hw, IXGBE_MRFC);
 	hw_stats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
 
 	/* Note that gprc counts missed packets */
 	hw_stats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
+	*rxnfgpc += IXGBE_READ_REG(hw, IXGBE_RXNFGPC);
+	*txdgpc += IXGBE_READ_REG(hw, IXGBE_TXDGPC);
 
 	if (hw->mac.type != ixgbe_mac_82598EB) {
 		hw_stats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
@@ -1879,6 +1907,27 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 		hw_stats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC);
 		hw_stats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC);
 	}
+}
+
+/* This function is based on ixgbe_update_stats_counters() in ixgbe/ixgbe.c */
+static void
+ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+	struct ixgbe_hw *hw =
+			IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct ixgbe_hw_stats *hw_stats =
+			IXGBE_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+	uint64_t total_missed_rx, total_qbrc, total_qprc, rxnfgpc, txdgpc;
+	unsigned i;
+
+	total_missed_rx = 0;
+	total_qbrc = 0;
+	total_qprc = 0;
+	rxnfgpc = 0;
+	txdgpc = 0;
+
+	ixgbe_read_stats_registers(hw, hw_stats, &total_missed_rx, &total_qbrc,
+				   &total_qprc, &rxnfgpc, &txdgpc);
 
 	if (stats == NULL)
 		return;
@@ -1888,7 +1937,6 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 	stats->ibytes = total_qbrc;
 	stats->opackets = hw_stats->gptc;
 	stats->obytes = hw_stats->gotc;
-	stats->imcasts = hw_stats->mprc;
 
 	for (i = 0; i < IXGBE_QUEUE_STAT_COUNTERS; i++) {
 		stats->q_ipackets[i] = hw_stats->qprc[i];
@@ -1900,15 +1948,32 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 
 	/* Rx Errors */
 	stats->ibadcrc  = hw_stats->crcerrs;
-	stats->ibadlen  = hw_stats->rlec + hw_stats->ruc + hw_stats->roc;
+	stats->ibadlen  = hw_stats->rlec +
+		hw_stats->ruc +
+		hw_stats->roc;
 	stats->imissed  = total_missed_rx;
-	stats->ierrors  = stats->ibadcrc +
-	                  stats->ibadlen +
-	                  stats->imissed +
-	                  hw_stats->illerrc + hw_stats->errbc;
+	stats->imacerr  = stats->ibadlen +
+		hw_stats->xec +
+		hw_stats->crcerrs +
+		hw_stats->illerrc +
+		hw_stats->errbc +
+		hw_stats->mlfc +
+		hw_stats->mrfc +
+		hw_stats->rfc +
+		hw_stats->rjc +
+		hw_stats->fccrc +
+		hw_stats->fclast;
+	stats->iphyerr  = rxnfgpc - hw_stats->gprc;
+	stats->ierrors  = stats->imacerr +
+		stats->iphyerr +
+		stats->imissed;
+	stats->idrop = hw_stats->mngpdc +
+		hw_stats->fcoerpdc +
+		total_qbrc;
 
 	/* Tx Errors */
 	stats->oerrors  = 0;
+	stats->odrop = txdgpc - hw_stats->gptc;
 
 	/* XON/XOFF pause frames */
 	stats->tx_pause_xon  = hw_stats->lxontxc;
@@ -1936,6 +2001,57 @@ ixgbe_dev_stats_reset(struct rte_eth_dev *dev)
 	memset(stats, 0, sizeof(*stats));
 }
 
+static int
+ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats,
+		     unsigned n)
+{
+	struct ixgbe_hw *hw =
+			IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct ixgbe_hw_stats *hw_stats =
+			IXGBE_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+	uint64_t total_missed_rx, total_qbrc, total_qprc, rxnfgpc, txdgpc;
+	unsigned i, count = RTE_NB_XSTATS;
+
+	if (n < count)
+		return count;
+
+	total_missed_rx = 0;
+	total_qbrc = 0;
+	total_qprc = 0;
+	rxnfgpc = 0;
+	txdgpc = 0;
+	count = 0;
+
+	ixgbe_read_stats_registers(hw, hw_stats, &total_missed_rx, &total_qbrc,
+				   &total_qprc, &rxnfgpc, &txdgpc);
+
+	if (!xstats)
+		return 0;
+
+	/* Error stats */
+	for (i = 0; i < RTE_NB_XSTATS; i++) {
+		snprintf(xstats[count].name, sizeof(xstats[count].name),
+			 "%s", rte_ixgbe_stats_strings[i].name);
+		xstats[count++].value = *(uint64_t *)(((char *)hw_stats) +
+					rte_ixgbe_stats_strings[i].offset);
+	}
+
+	return count;
+}
+
+static void
+ixgbe_dev_xstats_reset(struct rte_eth_dev *dev)
+{
+	struct ixgbe_hw_stats *stats =
+			IXGBE_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+
+	/* HW registers are cleared on read */
+	ixgbe_dev_xstats_get(dev, NULL, RTE_NB_XSTATS);
+
+	/* Reset software totals */
+	memset(stats, 0, sizeof(*stats));
+}
+
 static void
 ixgbevf_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 {
-- 
1.8.1.4



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