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Subject[PATCH net-next 09/23] {topost} net: hns3: add support for querying pfc puase packets statistic
Date
This patch add support for querying pfc puase packets statistic
in hclge_ieee_getpfc, which is used to tell user how many pfc
puase packets have been sent and received by this mac port.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
---
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 14 ++++++
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 53 ++++++++++++++++++++++
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h | 6 +++
3 files changed, 73 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 5018d66..c5270b5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -203,9 +203,11 @@ static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)

static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
{
+ u64 requests[HNAE3_MAX_TC], indications[HNAE3_MAX_TC];
struct hclge_vport *vport = hclge_get_vport(h);
struct hclge_dev *hdev = vport->back;
u8 i, j, pfc_map, *prio_tc;
+ int ret;

memset(pfc, 0, sizeof(*pfc));
pfc->pfc_cap = hdev->pfc_max;
@@ -220,6 +222,18 @@ static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
}
}

+ ret = hclge_pfc_tx_stats_get(hdev, requests);
+ if (ret)
+ return ret;
+
+ ret = hclge_pfc_rx_stats_get(hdev, indications);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
+ pfc->requests[i] = requests[i];
+ pfc->indications[i] = indications[i];
+ }
return 0;
}

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 4134a82..885f25c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -23,6 +23,9 @@ enum hclge_shaper_level {
HCLGE_SHAPER_LVL_PF = 1,
};

+#define HCLGE_TM_PFC_PKT_GET_CMD_NUM 3
+#define HCLGE_TM_PFC_NUM_GET_PER_CMD 3
+
#define HCLGE_SHAPER_BS_U_DEF 5
#define HCLGE_SHAPER_BS_S_DEF 20

@@ -112,6 +115,56 @@ static int hclge_shaper_para_calc(u32 ir, u8 shaper_level,
return 0;
}

+static int hclge_pfc_stats_get(struct hclge_dev *hdev,
+ enum hclge_opcode_type opcode, u64 *stats)
+{
+ struct hclge_desc desc[HCLGE_TM_PFC_PKT_GET_CMD_NUM];
+ int ret, i, j;
+
+ if (!(opcode == HCLGE_OPC_QUERY_PFC_RX_PKT_CNT ||
+ opcode == HCLGE_OPC_QUERY_PFC_TX_PKT_CNT))
+ return -EINVAL;
+
+ for (i = 0; i < HCLGE_TM_PFC_PKT_GET_CMD_NUM; i++) {
+ hclge_cmd_setup_basic_desc(&desc[i], opcode, true);
+ if (i != (HCLGE_TM_PFC_PKT_GET_CMD_NUM - 1))
+ desc[i].flag |= cpu_to_le16(HCLGE_CMD_FLAG_NEXT);
+ else
+ desc[i].flag &= ~cpu_to_le16(HCLGE_CMD_FLAG_NEXT);
+ }
+
+ ret = hclge_cmd_send(&hdev->hw, desc, HCLGE_TM_PFC_PKT_GET_CMD_NUM);
+ if (ret) {
+ dev_err(&hdev->pdev->dev,
+ "Get pfc pause stats fail, ret = %d.\n", ret);
+ return ret;
+ }
+
+ for (i = 0; i < HCLGE_TM_PFC_PKT_GET_CMD_NUM; i++) {
+ struct hclge_pfc_stats_cmd *pfc_stats =
+ (struct hclge_pfc_stats_cmd *)desc[i].data;
+
+ for (j = 0; j < HCLGE_TM_PFC_NUM_GET_PER_CMD; j++) {
+ u32 index = i * HCLGE_TM_PFC_PKT_GET_CMD_NUM + j;
+
+ if (index < HCLGE_MAX_TC_NUM)
+ stats[index] =
+ le64_to_cpu(pfc_stats->pkt_num[j]);
+ }
+ }
+ return 0;
+}
+
+int hclge_pfc_rx_stats_get(struct hclge_dev *hdev, u64 *stats)
+{
+ return hclge_pfc_stats_get(hdev, HCLGE_OPC_QUERY_PFC_RX_PKT_CNT, stats);
+}
+
+int hclge_pfc_tx_stats_get(struct hclge_dev *hdev, u64 *stats)
+{
+ return hclge_pfc_stats_get(hdev, HCLGE_OPC_QUERY_PFC_TX_PKT_CNT, stats);
+}
+
int hclge_mac_pause_en_cfg(struct hclge_dev *hdev, bool tx, bool rx)
{
struct hclge_desc desc;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index c30c85b..2dbe177 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -109,6 +109,10 @@ struct hclge_cfg_pause_param_cmd {
__le16 pause_trans_time;
};

+struct hclge_pfc_stats_cmd {
+ __le64 pkt_num[3];
+};
+
struct hclge_port_shapping_cmd {
__le32 port_shapping_para;
};
@@ -130,4 +134,6 @@ int hclge_tm_map_cfg(struct hclge_dev *hdev);
int hclge_tm_init_hw(struct hclge_dev *hdev);
int hclge_mac_pause_en_cfg(struct hclge_dev *hdev, bool tx, bool rx);
int hclge_pause_addr_cfg(struct hclge_dev *hdev, const u8 *mac_addr);
+int hclge_pfc_rx_stats_get(struct hclge_dev *hdev, u64 *stats);
+int hclge_pfc_tx_stats_get(struct hclge_dev *hdev, u64 *stats);
#endif
--
2.9.3
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