net: hns3: add support for dumping MAC reg in debugfs

This patch adds support for dumping MAC reg in debugfs,
which will be helpful for debugging.

Signed-off-by: Yufeng Mo <moyufeng@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 e1d88095a77e82fe4f1b701c9d543aa8094c7c75..c934f328c040277a0518ebdb7efce5c3428d445d 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -270,7 +270,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
                " [igu egu <port_id>] [rpu <tc_queue_num>]",
                HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
        strncat(printf_buf + strlen(printf_buf),
-               " [rtc] [ppp] [rcb] [tqp <queue_num>]]\n",
+               " [rtc] [ppp] [rcb] [tqp <queue_num>] [mac]]\n",
                HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
        dev_info(&h->pdev->dev, "%s", printf_buf);
 

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index cfc9300ff715362e080d54c42b54066455f45276..66c1ad3a156bfcbf35261de6923678ab1a66b1be 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -173,6 +173,114 @@ static void hclge_dbg_dump_reg_common(struct hclge_dev *hdev,
        kfree(desc_src);
 }
 
+static void hclge_dbg_dump_mac_enable_status(struct hclge_dev *hdev)
+{
+       struct hclge_config_mac_mode_cmd *req;
+       struct hclge_desc desc;
+       u32 loop_en;
+       int ret;
+
+       hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAC_MODE, true);
+
+       ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+       if (ret) {
+               dev_err(&hdev->pdev->dev,
+                       "failed to dump mac enable status, ret = %d\n", ret);
+               return;
+       }
+
+       req = (struct hclge_config_mac_mode_cmd *)desc.data;
+       loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
+
+       dev_info(&hdev->pdev->dev, "config_mac_trans_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_TX_EN_B));
+       dev_info(&hdev->pdev->dev, "config_mac_rcv_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_RX_EN_B));
+       dev_info(&hdev->pdev->dev, "config_pad_trans_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_PAD_TX_B));
+       dev_info(&hdev->pdev->dev, "config_pad_rcv_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_PAD_RX_B));
+       dev_info(&hdev->pdev->dev, "config_1588_trans_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_1588_TX_B));
+       dev_info(&hdev->pdev->dev, "config_1588_rcv_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_1588_RX_B));
+       dev_info(&hdev->pdev->dev, "config_mac_app_loop_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_APP_LP_B));
+       dev_info(&hdev->pdev->dev, "config_mac_line_loop_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_LINE_LP_B));
+       dev_info(&hdev->pdev->dev, "config_mac_fcs_tx_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_FCS_TX_B));
+       dev_info(&hdev->pdev->dev, "config_mac_rx_oversize_truncate_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_RX_OVERSIZE_TRUNCATE_B));
+       dev_info(&hdev->pdev->dev, "config_mac_rx_fcs_strip_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_RX_FCS_STRIP_B));
+       dev_info(&hdev->pdev->dev, "config_mac_rx_fcs_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_RX_FCS_B));
+       dev_info(&hdev->pdev->dev, "config_mac_tx_under_min_err_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_TX_UNDER_MIN_ERR_B));
+       dev_info(&hdev->pdev->dev, "config_mac_tx_oversize_truncate_en: %#x\n",
+                hnae3_get_bit(loop_en, HCLGE_MAC_TX_OVERSIZE_TRUNCATE_B));
+}
+
+static void hclge_dbg_dump_mac_frame_size(struct hclge_dev *hdev)
+{
+       struct hclge_config_max_frm_size_cmd *req;
+       struct hclge_desc desc;
+       int ret;
+
+       hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAX_FRM_SIZE, true);
+
+       ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+       if (ret) {
+               dev_err(&hdev->pdev->dev,
+                       "failed to dump mac frame size, ret = %d\n", ret);
+               return;
+       }
+
+       req = (struct hclge_config_max_frm_size_cmd *)desc.data;
+
+       dev_info(&hdev->pdev->dev, "max_frame_size: %u\n",
+                le16_to_cpu(req->max_frm_size));
+       dev_info(&hdev->pdev->dev, "min_frame_size: %u\n", req->min_frm_size);
+}
+
+static void hclge_dbg_dump_mac_speed_duplex(struct hclge_dev *hdev)
+{
+#define HCLGE_MAC_SPEED_SHIFT  0
+#define HCLGE_MAC_SPEED_MASK   GENMASK(5, 0)
+#define HCLGE_MAC_DUPLEX_SHIFT 7
+
+       struct hclge_config_mac_speed_dup_cmd *req;
+       struct hclge_desc desc;
+       int ret;
+
+       hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_SPEED_DUP, true);
+
+       ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+       if (ret) {
+               dev_err(&hdev->pdev->dev,
+                       "failed to dump mac speed duplex, ret = %d\n", ret);
+               return;
+       }
+
+       req = (struct hclge_config_mac_speed_dup_cmd *)desc.data;
+
+       dev_info(&hdev->pdev->dev, "speed: %#lx\n",
+                hnae3_get_field(req->speed_dup, HCLGE_MAC_SPEED_MASK,
+                                HCLGE_MAC_SPEED_SHIFT));
+       dev_info(&hdev->pdev->dev, "duplex: %#x\n",
+                hnae3_get_bit(req->speed_dup, HCLGE_MAC_DUPLEX_SHIFT));
+}
+
+static void hclge_dbg_dump_mac(struct hclge_dev *hdev)
+{
+       hclge_dbg_dump_mac_enable_status(hdev);
+
+       hclge_dbg_dump_mac_frame_size(hdev);
+
+       hclge_dbg_dump_mac_speed_duplex(hdev);
+}
+
 static void hclge_dbg_dump_dcb(struct hclge_dev *hdev, const char *cmd_buf)
 {
        struct device *dev = &hdev->pdev->dev;
@@ -304,6 +412,11 @@ static void hclge_dbg_dump_reg_cmd(struct hclge_dev *hdev, const char *cmd_buf)
                }
        }
 
+       if (strncmp(cmd_buf, "mac", strlen("mac")) == 0) {
+               hclge_dbg_dump_mac(hdev);
+               has_dump = true;
+       }
+
        if (strncmp(cmd_buf, "dcb", 3) == 0) {
                hclge_dbg_dump_dcb(hdev, &cmd_buf[sizeof("dcb")]);
                has_dump = true;