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Date: Mon, 5 Sep 2022 16:15:37 +0800
From: Guangbin Huang <huangguangbin2@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>
CC: <edumazet@...gle.com>, <pabeni@...hat.com>,
<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<huangguangbin2@...wei.com>, <lipeng321@...wei.com>,
<lanhao@...wei.com>
Subject: [PATCH net-next 3/5] 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@...wei.com>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 +
.../ethernet/hisilicon/hns3/hns3_debugfs.c | 7 +++
.../hisilicon/hns3/hns3pf/hclge_debugfs.c | 60 ++++++++++++++++++-
3 files changed, 67 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 33b5ac47f342..9ae094189d3a 100644
--- 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 93aeb615191d..0f8f5c466871 100644
--- 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 59121767a853..55f696d071e5 100644
--- 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,
--
2.33.0
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