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net: hns3: Add "dcb register" status information query function
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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@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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liuzhongzhu authored and David S. Miller committed Dec 15, 2018
1 parent 27cf979 commit c0ebebb
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Showing 4 changed files with 134 additions and 0 deletions.
7 changes: 7 additions & 0 deletions drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -226,6 +226,13 @@ static void hns3_dbg_help(struct hnae3_handle *h)
" [rtc] [ppp] [rcb] [tqp <q_num>]]\n",
HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
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 - 1);
strncat(printf_buf + strlen(printf_buf), " [rq_id] [nq_id] [qset_id]\n",
HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
dev_info(&h->pdev->dev, "%s", printf_buf);
}

static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
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9 changes: 9 additions & 0 deletions drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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,
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102 changes: 102 additions & 0 deletions drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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_afull_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;
Expand Down Expand Up @@ -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;
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16 changes: 16 additions & 0 deletions drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,22 @@ 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_dbg_dfx_message {
int flag;
char message[60];
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