[RFC net-next 7/9] net: hns3: Add "dcb register" status information query function

From: Salil Mehta
Date: Sun Dec 02 2018 - 18:11:55 EST

From: liuzhongzhu <liuzhongzhu@xxxxxxxxxx>

This patch prints dcb register status information by module.

debugfs command:
root@(none)# echo dump reg dcb > cmd
roce_qset_mask: 0x0
nic_qs_mask: 0x0
qs_shaping_pass: 0x0
qs_bp_sts: 0x0
pri_mask: 0x0
pri_cshaping_pass: 0x0
pri_pshaping_pass: 0x0
root@(none)#

Signed-off-by: liuzhongzhu <liuzhongzhu@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 7 ++
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 9 ++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 102 +++++++++++++++++++++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h | 16 ++++
4 files changed, 134 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 4e9d306fc3ff..4fb2bff66614 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -229,6 +229,13 @@ static void hns3_dbg_help(struct hnae3_handle *h)
" [rtc] [ppp] [rcb] [tqp <q_num>]]\n",
HNS3_DBG_BUF_LEN - strlen(printf_buf));
dev_info(&h->pdev->dev, "%s", printf_buf);
+
+ memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
+ strncat(printf_buf, "dump reg dcb [port_id] [pri_id] [pg_id]",
+ HNS3_DBG_BUF_LEN);
+ strncat(printf_buf + strlen(printf_buf), " [rq_id] [nq_id] [qset_id]\n",
+ HNS3_DBG_BUF_LEN - strlen(printf_buf));
+ dev_info(&h->pdev->dev, "%s", printf_buf);
}

static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index df18b1708f39..a425b6d68f55 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -140,6 +140,15 @@ enum hclge_opcode_type {
HCLGE_OPC_TM_QS_SCH_MODE_CFG = 0x0814,
HCLGE_OPC_TM_BP_TO_QSET_MAPPING = 0x0815,
HCLGE_OPC_ETS_TC_WEIGHT = 0x0843,
+ HCLGE_OPC_QSET_DFX_STS = 0x0844,
+ HCLGE_OPC_PRI_DFX_STS = 0x0845,
+ HCLGE_OPC_PG_DFX_STS = 0x0846,
+ HCLGE_OPC_PORT_DFX_STS = 0x0847,
+ HCLGE_OPC_SCH_NQ_CNT = 0x0848,
+ HCLGE_OPC_SCH_RQ_CNT = 0x0849,
+ HCLGE_OPC_TM_INTERNAL_STS = 0x0850,
+ HCLGE_OPC_TM_INTERNAL_CNT = 0x0851,
+ HCLGE_OPC_TM_INTERNAL_STS_1 = 0x0852,

/* Packet buffer allocate commands */
HCLGE_OPC_TX_BUFF_ALLOC = 0x0901,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 716af6491f1d..76a7ab6ea24d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -107,6 +107,106 @@ static void hclge_dbg_dump_reg_common(struct hclge_dev *hdev,
kfree(desc_src);
}

+static void hclge_dbg_dump_dcb(struct hclge_dev *hdev, char *cmd_buf)
+{
+ struct device *dev = &hdev->pdev->dev;
+ struct hclge_dbg_bitmap_cmd *bitmap;
+ int rq_id, pri_id, qset_id;
+ int port_id, nq_id, pg_id;
+ struct hclge_desc desc[2];
+
+ int cnt, ret;
+
+ cnt = sscanf(cmd_buf, "%i %i %i %i %i %i",
+ &port_id, &pri_id, &pg_id, &rq_id, &nq_id, &qset_id);
+ if (cnt != 6) {
+ dev_err(&hdev->pdev->dev,
+ "dump dcb: bad command parameter, cnt=%d\n", cnt);
+ return;
+ }
+
+ ret = hclge_dbg_cmd_send(hdev, desc, qset_id, 1,
+ HCLGE_OPC_QSET_DFX_STS);
+ if (ret)
+ return;
+
+ bitmap = (struct hclge_dbg_bitmap_cmd *)&desc[0].data[1];
+ dev_info(dev, "roce_qset_mask: 0x%x\n", bitmap->bit0);
+ dev_info(dev, "nic_qs_mask: 0x%x\n", bitmap->bit1);
+ dev_info(dev, "qs_shaping_pass: 0x%x\n", bitmap->bit2);
+ dev_info(dev, "qs_bp_sts: 0x%x\n", bitmap->bit3);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, pri_id, 1, HCLGE_OPC_PRI_DFX_STS);
+ if (ret)
+ return;
+
+ bitmap = (struct hclge_dbg_bitmap_cmd *)&desc[0].data[1];
+ dev_info(dev, "pri_mask: 0x%x\n", bitmap->bit0);
+ dev_info(dev, "pri_cshaping_pass: 0x%x\n", bitmap->bit1);
+ dev_info(dev, "pri_pshaping_pass: 0x%x\n", bitmap->bit2);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, pg_id, 1, HCLGE_OPC_PG_DFX_STS);
+ if (ret)
+ return;
+
+ bitmap = (struct hclge_dbg_bitmap_cmd *)&desc[0].data[1];
+ dev_info(dev, "pg_mask: 0x%x\n", bitmap->bit0);
+ dev_info(dev, "pg_cshaping_pass: 0x%x\n", bitmap->bit1);
+ dev_info(dev, "pg_pshaping_pass: 0x%x\n", bitmap->bit2);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1,
+ HCLGE_OPC_PORT_DFX_STS);
+ if (ret)
+ return;
+
+ bitmap = (struct hclge_dbg_bitmap_cmd *)&desc[0].data[1];
+ dev_info(dev, "port_mask: 0x%x\n", bitmap->bit0);
+ dev_info(dev, "port_shaping_pass: 0x%x\n", bitmap->bit1);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, nq_id, 1, HCLGE_OPC_SCH_NQ_CNT);
+ if (ret)
+ return;
+
+ dev_info(dev, "sch_nq_cnt: 0x%x\n", desc[0].data[1]);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, nq_id, 1, HCLGE_OPC_SCH_RQ_CNT);
+ if (ret)
+ return;
+
+ dev_info(dev, "sch_rq_cnt: 0x%x\n", desc[0].data[1]);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, 0, 2, HCLGE_OPC_TM_INTERNAL_STS);
+ if (ret)
+ return;
+
+ dev_info(dev, "pri_bp: 0x%x\n", desc[0].data[1]);
+ dev_info(dev, "fifo_dfx_info: 0x%x\n", desc[0].data[2]);
+ dev_info(dev, "sch_roce_fifo_aful_gap: 0x%x\n", desc[0].data[3]);
+ dev_info(dev, "tx_private_waterline: 0x%x\n", desc[0].data[4]);
+ dev_info(dev, "tm_bypass_en: 0x%x\n", desc[0].data[5]);
+ dev_info(dev, "SSU_TM_BYPASS_EN: 0x%x\n", desc[1].data[0]);
+ dev_info(dev, "SSU_RESERVE_CFG: 0x%x\n", desc[1].data[1]);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1,
+ HCLGE_OPC_TM_INTERNAL_CNT);
+ if (ret)
+ return;
+
+ dev_info(dev, "SCH_NIC_NUM: 0x%x\n", desc[0].data[1]);
+ dev_info(dev, "SCH_ROCE_NUM: 0x%x\n", desc[0].data[2]);
+
+ ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1,
+ HCLGE_OPC_TM_INTERNAL_STS_1);
+ if (ret)
+ return;
+
+ dev_info(dev, "TC_MAP_SEL: 0x%x\n", desc[0].data[1]);
+ dev_info(dev, "IGU_PFC_PRI_EN: 0x%x\n", desc[0].data[2]);
+ dev_info(dev, "MAC_PFC_PRI_EN: 0x%x\n", desc[0].data[3]);
+ dev_info(dev, "IGU_PRI_MAP_TC_CFG: 0x%x\n", desc[0].data[4]);
+ dev_info(dev, "IGU_TX_PRI_MAP_TC_CFG: 0x%x\n", desc[0].data[5]);
+}
+
static void hclge_dbg_dump_reg_cmd(struct hclge_dev *hdev, char *cmd_buf)
{
int msg_num;
@@ -195,6 +295,8 @@ static void hclge_dbg_dump_reg_cmd(struct hclge_dev *hdev, char *cmd_buf)
&cmd_buf[13], msg_num,
HCLGE_DBG_DFX_TQP_OFFSET,
HCLGE_OPC_DFX_TQP_REG);
+ } else if (strncmp(&cmd_buf[9], "dcb", 3) == 0) {
+ hclge_dbg_dump_dcb(hdev, &cmd_buf[13]);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
index de75252b2f2b..d85cd74f7f2c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
@@ -57,6 +57,22 @@ struct hclge_qos_pri_map_cmd {
rev : 4;
};

+struct hclge_dbg_bitmap_cmd {
+ union {
+ u8 bitmap;
+ struct {
+ u8 bit0 : 1,
+ bit1 : 1,
+ bit2 : 1,
+ bit3 : 1,
+ bit4 : 1,
+ bit5 : 1,
+ bit6 : 1,
+ bit7 : 1;
+ };
+ };
+};
+
struct hclge_mac_vlan_idx_rd_mc {
u32 index;
u8 mac_add[8];
--
2.11.0