ixgbe: add xstats

Implement ixgbe_dev_xstats_reset and ixgbe_dev_xstats_get.

Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 2949a67..788667b 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -143,7 +143,10 @@ 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,
@@ -371,7 +374,9 @@ 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,
@@ -464,6 +469,33 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = {
        .get_reg              = ixgbevf_get_regs,
 };
 
+/* 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_broadcast_packets", offsetof(struct ixgbe_hw_stats, bprc)},
+       {"mgmt_pkts_dropped", offsetof(struct ixgbe_hw_stats, mngpdc)},
+};
+
+#define IXGBE_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.
@@ -2038,6 +2070,61 @@ 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, total_qprdc;
+       uint64_t rxnfgpc, txdgpc;
+       unsigned i, count = IXGBE_NB_XSTATS;
+
+       if (n < count)
+               return count;
+
+       total_missed_rx = 0;
+       total_qbrc = 0;
+       total_qprc = 0;
+       total_qprdc = 0;
+       rxnfgpc = 0;
+       txdgpc = 0;
+
+       ixgbe_read_stats_registers(hw, hw_stats, &total_missed_rx, &total_qbrc,
+                                                          &total_qprc, &rxnfgpc, &txdgpc, &total_qprdc);
+
+       /* If this is a reset xstats is NULL, and we have cleared the
+        * registers by reading them.
+        */
+       if (!xstats)
+               return 0;
+
+       /* Extended stats */
+       for (i = 0; i < IXGBE_NB_XSTATS; i++) {
+               snprintf(xstats[i].name, sizeof(xstats[i].name),
+                               "%s", rte_ixgbe_stats_strings[i].name);
+               xstats[i].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, IXGBE_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)
 {