[dpdk-dev] [PATCH v3 6/8] net/hns3: support oerrors stats in PF

[Min Hu (Connor)]

This patch added oerrors stats for PF in kunpeng930.

Signed-off-by: Min Hu (Connor) <humi...@huawei.com>
---
 drivers/net/hns3/hns3_ethdev.h |  1 +
 drivers/net/hns3/hns3_stats.c  | 61 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/drivers/net/hns3/hns3_ethdev.h b/drivers/net/hns3/hns3_ethdev.h
index 6e74ec8..f69e2d8 100644
--- a/drivers/net/hns3/hns3_ethdev.h
+++ b/drivers/net/hns3/hns3_ethdev.h
@@ -443,6 +443,7 @@ struct hns3_hw {
        /* Include Mac stats | Rx stats | Tx stats */
        struct hns3_mac_stats mac_stats;
        struct hns3_rx_missed_stats imissed_stats;
+       uint64_t oerror_stats;
        uint32_t fw_version;
 
        uint16_t num_msi;
diff --git a/drivers/net/hns3/hns3_stats.c b/drivers/net/hns3/hns3_stats.c
index ccad477..e0378dd 100644
--- a/drivers/net/hns3/hns3_stats.c
+++ b/drivers/net/hns3/hns3_stats.c
@@ -518,6 +518,29 @@ hns3_update_port_rx_ssu_drop_stats(struct hns3_hw *hw)
        return 0;
 }
 
+static int
+hns3_update_port_tx_ssu_drop_stats(struct hns3_hw *hw)
+{
+       struct hns3_cmd_desc desc[HNS3_OPC_SSU_DROP_REG_NUM];
+       struct hns3_query_ssu_cmd *req;
+       uint64_t cnt;
+       int ret;
+
+       ret = hns3_get_ssu_drop_stats(hw, desc, HNS3_OPC_SSU_DROP_REG_NUM,
+                                     false);
+       if (ret) {
+               hns3_err(hw, "failed to get Tx SSU drop stats, ret = %d", ret);
+               return ret;
+       }
+
+       req = (struct hns3_query_ssu_cmd *)desc[0].data;
+       cnt = rte_le_to_cpu_32(req->oq_glb_drop_cnt);
+
+       hw->oerror_stats += cnt;
+
+       return 0;
+}
+
 int
 hns3_update_imissed_stats(struct hns3_hw *hw, bool is_clear)
 {
@@ -543,6 +566,25 @@ hns3_update_imissed_stats(struct hns3_hw *hw, bool 
is_clear)
        return 0;
 }
 
+static int
+hns3_update_oerror_stats(struct hns3_hw *hw, bool is_clear)
+{
+       struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
+       int ret;
+
+       if (hw->drop_stats_mode == HNS3_PKTS_DROP_STATS_MODE1 || hns->is_vf)
+               return 0;
+
+       ret = hns3_update_port_tx_ssu_drop_stats(hw);
+       if (ret)
+               return ret;
+
+       if (is_clear)
+               hw->oerror_stats = 0;
+
+       return 0;
+}
+
 /*
  * Query tqp tx queue statistics ,opcode id: 0x0B03.
  * Query tqp rx queue statistics ,opcode id: 0x0B13.
@@ -577,6 +619,14 @@ hns3_stats_get(struct rte_eth_dev *eth_dev, struct 
rte_eth_stats *rte_stats)
        rte_stats->imissed = imissed_stats->rpu_rx_drop_cnt +
                                imissed_stats->ssu_rx_drop_cnt;
 
+       ret = hns3_update_oerror_stats(hw, false);
+       if (ret) {
+               hns3_err(hw, "update oerror stats failed, ret = %d",
+                        ret);
+               return ret;
+       }
+       rte_stats->oerrors = hw->oerror_stats;
+
        /* Get the error stats and bytes of received packets */
        for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
                rxq = eth_dev->data->rx_queues[i];
@@ -643,6 +693,17 @@ hns3_stats_reset(struct rte_eth_dev *eth_dev)
                return ret;
        }
 
+       /*
+        * Note: Reading hardware statistics of oerror registers will
+        * clear them.
+        */
+       ret = hns3_update_oerror_stats(hw, true);
+       if (ret) {
+               hns3_err(hw, "clear oerror stats failed, ret = %d",
+                        ret);
+               return ret;
+       }
+
        for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
                rxq = eth_dev->data->rx_queues[i];
                if (rxq == NULL)
-- 
2.7.4