net: hns3: add support for dump firmware statistics by debugfs

This patch prints firmware statistics information.

debugfs command:
echo dump m7 info > cmd

estuary:/dbg/hns3/0000:7d:00.0$ echo dump m7 info > cmd
[  172.577240] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
[  172.583471] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
[  172.589552] hns3 0000:7d:00.0: 0x00000030  0x00000000  0x00000000
[  172.595632] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
estuary:/dbg/hns3/0000:7d:00.0$

Signed-off-by: Zhongzhu Liu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index fc4917a..30354fa 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -252,6 +252,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
        dev_info(&h->pdev->dev, "dump qos buf cfg\n");
        dev_info(&h->pdev->dev, "dump mng tbl\n");
        dev_info(&h->pdev->dev, "dump reset info\n");
+       dev_info(&h->pdev->dev, "dump m7 info\n");
        dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
        dev_info(&h->pdev->dev, "dump mac tnl status\n");
 

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index d79a209..61cb10d 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -243,6 +243,9 @@ enum hclge_opcode_type {
 
        /* NCL config command */
        HCLGE_OPC_QUERY_NCL_CONFIG      = 0x7011,
+       /* M7 stats command */
+       HCLGE_OPC_M7_STATS_BD           = 0x7012,
+       HCLGE_OPC_M7_STATS_INFO         = 0x7013,
 
        /* SFP command */
        HCLGE_OPC_GET_SFP_INFO          = 0x7104,
@@ -970,6 +973,11 @@ struct hclge_fd_ad_config_cmd {
        u8 rsv2[8];
 };
 
+struct hclge_get_m7_bd_cmd {
+       __le32 bd_num;
+       u8 rsv[20];
+};
+
 int hclge_cmd_init(struct hclge_dev *hdev);
 static inline void hclge_write_reg(void __iomem *base, u32 reg, u32 value)
 {

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index a9ffb57..ed1f533 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -921,6 +921,61 @@ static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
                 hdev->rst_stats.reset_cnt);
 }
 
+void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)
+{
+       struct hclge_desc *desc_src, *desc_tmp;
+       struct hclge_get_m7_bd_cmd *req;
+       struct hclge_desc desc;
+       u32 bd_num, buf_len;
+       int ret, i;
+
+       hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_M7_STATS_BD, true);
+
+       req = (struct hclge_get_m7_bd_cmd *)desc.data;
+       ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+       if (ret) {
+               dev_err(&hdev->pdev->dev,
+                       "get firmware statistics bd number failed, ret=%d\n",
+                       ret);
+               return;
+       }
+
+       bd_num = le32_to_cpu(req->bd_num);
+
+       buf_len  = sizeof(struct hclge_desc) * bd_num;
+       desc_src = kzalloc(buf_len, GFP_KERNEL);
+       if (!desc_src) {
+               dev_err(&hdev->pdev->dev,
+                       "allocate desc for get_m7_stats failed\n");
+               return;
+       }
+
+       desc_tmp = desc_src;
+       ret  = hclge_dbg_cmd_send(hdev, desc_tmp, 0, bd_num,
+                                 HCLGE_OPC_M7_STATS_INFO);
+       if (ret) {
+               kfree(desc_src);
+               dev_err(&hdev->pdev->dev,
+                       "get firmware statistics failed, ret=%d\n", ret);
+               return;
+       }
+
+       for (i = 0; i < bd_num; i++) {
+               dev_info(&hdev->pdev->dev, "0x%08x  0x%08x  0x%08x\n",
+                        le32_to_cpu(desc_tmp->data[0]),
+                        le32_to_cpu(desc_tmp->data[1]),
+                        le32_to_cpu(desc_tmp->data[2]));
+               dev_info(&hdev->pdev->dev, "0x%08x  0x%08x  0x%08x\n",
+                        le32_to_cpu(desc_tmp->data[3]),
+                        le32_to_cpu(desc_tmp->data[4]),
+                        le32_to_cpu(desc_tmp->data[5]));
+
+               desc_tmp++;
+       }
+
+       kfree(desc_src);
+}
+
 /* hclge_dbg_dump_ncl_config: print specified range of NCL_CONFIG file
  * @hdev: pointer to struct hclge_dev
  * @cmd_buf: string that contains offset and length
@@ -1029,6 +1084,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
                hclge_dbg_dump_reg_cmd(hdev, cmd_buf);
        } else if (strncmp(cmd_buf, "dump reset info", 15) == 0) {
                hclge_dbg_dump_rst_info(hdev);
+       } else if (strncmp(cmd_buf, "dump m7 info", 12) == 0) {
+               hclge_dbg_get_m7_stats_info(hdev);
        } else if (strncmp(cmd_buf, "dump ncl_config", 15) == 0) {
                hclge_dbg_dump_ncl_config(hdev,
                                          &cmd_buf[sizeof("dump ncl_config")]);