net: hns3: debugfs add dump dscp map info

This patch add dump the map relation for dscp, priority and TC, and
the current tc map mode.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 33b5ac4..9ae0941 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -272,6 +272,7 @@ enum hnae3_dbg_cmd {
        HNAE3_DBG_CMD_TC_SCH_INFO,
        HNAE3_DBG_CMD_QOS_PAUSE_CFG,
        HNAE3_DBG_CMD_QOS_PRI_MAP,
+       HNAE3_DBG_CMD_QOS_DSCP_MAP,
        HNAE3_DBG_CMD_QOS_BUF_CFG,
        HNAE3_DBG_CMD_DEV_INFO,
        HNAE3_DBG_CMD_TX_BD,

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 93aeb61..0f8f5c4 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -105,6 +105,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
                .buf_len = HNS3_DBG_READ_LEN,
                .init = hns3_dbg_common_file_init,
        },
+       {
+               .name = "qos_dscp_map",
+               .cmd = HNAE3_DBG_CMD_QOS_DSCP_MAP,
+               .dentry = HNS3_DBG_DENTRY_TM,
+               .buf_len = HNS3_DBG_READ_LEN,
+               .init = hns3_dbg_common_file_init,
+       },
        {
                .name = "qos_buf_cfg",
                .cmd = HNAE3_DBG_CMD_QOS_BUF_CFG,

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 5912176..55f696d 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -14,6 +14,8 @@ static const char * const hclge_mac_state_str[] = {
        "TO_ADD", "TO_DEL", "ACTIVE"
 };
 
+static const char * const tc_map_mode_str[] = { "PRIO", "DSCP" };
+
 static const struct hclge_dbg_reg_type_info hclge_dbg_reg_info[] = {
        { .cmd = HNAE3_DBG_CMD_REG_BIOS_COMMON,
          .dfx_msg = &hclge_dbg_bios_common_reg[0],
@@ -1115,10 +1117,11 @@ static int hclge_dbg_dump_qos_pause_cfg(struct hclge_dev *hdev, char *buf,
        return 0;
 }
 
+#define HCLGE_DBG_TC_MASK              0x0F
+
 static int hclge_dbg_dump_qos_pri_map(struct hclge_dev *hdev, char *buf,
                                      int len)
 {
-#define HCLGE_DBG_TC_MASK              0x0F
 #define HCLGE_DBG_TC_BIT_WIDTH         4
 
        struct hclge_qos_pri_map_cmd *pri_map;
@@ -1152,6 +1155,57 @@ static int hclge_dbg_dump_qos_pri_map(struct hclge_dev *hdev, char *buf,
        return 0;
 }
 
+static int hclge_dbg_dump_qos_dscp_map(struct hclge_dev *hdev, char *buf,
+                                      int len)
+{
+       struct hclge_desc desc[HCLGE_DSCP_MAP_TC_BD_NUM];
+       u8 *req0 = (u8 *)desc[0].data;
+       u8 *req1 = (u8 *)desc[1].data;
+       u8 dscp_tc[HCLGE_MAX_DSCP];
+       int pos, ret;
+       u8 i, j;
+
+       pos = scnprintf(buf, len, "tc map mode: %s\n",
+                       tc_map_mode_str[hdev->vport[0].nic.kinfo.tc_map_mode]);
+
+       if (hdev->vport[0].nic.kinfo.tc_map_mode != HNAE3_TC_MAP_MODE_DSCP)
+               return 0;
+
+       hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_QOS_MAP, true);
+       desc[0].flag |= cpu_to_le16(HCLGE_COMM_CMD_FLAG_NEXT);
+       hclge_cmd_setup_basic_desc(&desc[1], HCLGE_OPC_QOS_MAP, true);
+       ret = hclge_cmd_send(&hdev->hw, desc, HCLGE_DSCP_MAP_TC_BD_NUM);
+       if (ret) {
+               dev_err(&hdev->pdev->dev,
+                       "failed to dump qos dscp map, ret = %d\n", ret);
+               return ret;
+       }
+
+       pos += scnprintf(buf + pos, len - pos, "\nDSCP  PRIO  TC\n");
+
+       /* The low 32 dscp setting use bd0, high 32 dscp setting use bd1 */
+       for (i = 0; i < HCLGE_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; i++) {
+               j = i + HCLGE_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM;
+               /* Each dscp setting has 4 bits, so each byte saves two dscp
+                * setting
+                */
+               dscp_tc[i] = req0[i >> 1] >> HCLGE_DSCP_TC_SHIFT(i);
+               dscp_tc[j] = req1[i >> 1] >> HCLGE_DSCP_TC_SHIFT(i);
+               dscp_tc[i] &= HCLGE_DBG_TC_MASK;
+               dscp_tc[j] &= HCLGE_DBG_TC_MASK;
+       }
+
+       for (i = 0; i < HCLGE_MAX_DSCP; i++) {
+               if (hdev->tm_info.dscp_prio[i] == HCLGE_PRIO_ID_INVALID)
+                       continue;
+
+               pos += scnprintf(buf + pos, len - pos, " %2u    %u    %u\n",
+                                i, hdev->tm_info.dscp_prio[i], dscp_tc[i]);
+       }
+
+       return 0;
+}
+
 static int hclge_dbg_dump_tx_buf_cfg(struct hclge_dev *hdev, char *buf, int len)
 {
        struct hclge_tx_buff_alloc_cmd *tx_buf_cmd;
@@ -2376,6 +2430,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = {
                .cmd = HNAE3_DBG_CMD_QOS_PRI_MAP,
                .dbg_dump = hclge_dbg_dump_qos_pri_map,
        },
+       {
+               .cmd = HNAE3_DBG_CMD_QOS_DSCP_MAP,
+               .dbg_dump = hclge_dbg_dump_qos_dscp_map,
+       },
        {
                .cmd = HNAE3_DBG_CMD_QOS_BUF_CFG,
                .dbg_dump = hclge_dbg_dump_qos_buf_cfg,