[PATCH kernel-4.19 37/73] net: hns3: refactor dump reg dcb info of debugfs

From: Yufeng Mo moyufeng@huawei.com

mainline inclusion from mainline-v5.14-rc1 commit 365e860aa7a7 category: feature bugzilla: NA CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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Currently, the debugfs command for reg dcb info is implemented by "echo xxxx > cmd", and record the information in dmesg. It's unnecessary and heavy. To improve it, create a single file "dcb" for it, and query it by command "cat dcb", return the result to userspace, rather than record in dmesg.

The display style is below: $ cat dcb qset_id roce_qset_mask nic_qset_mask qset_shaping_pass qset_bp_status 0000 0x1 0x1 0x1 0x0 0001 0x1 0x1 0x1 0x0 0002 0x1 0x1 0x1 0x0 0003 0x1 0x1 0x1 0x0 0004 0x1 0x1 0x1 0x0 0005 0x1 0x1 0x1 0x0 0006 0x1 0x1 0x1 0x0 0007 0x1 0x1 0x1 0x0 pri_id pri_mask pri_cshaping_pass pri_pshaping_pass 000 0x1 0x0 0x1 001 0x1 0x0 0x0 002 0x1 0x0 0x0 003 0x1 0x0 0x0 004 0x1 0x0 0x0 005 0x1 0x0 0x0 006 0x1 0x0 0x0 007 0x1 0x0 0x0 pg_id pg_mask pg_cshaping_pass pg_pshaping_pass 000 0x1 0x0 0x1

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 Signed-off-by: Yonglong Liu liuyonglong@huawei.com Reviewed-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 + .../ethernet/hisilicon/hns3/hns3_debugfs.c | 18 +- .../hisilicon/hns3/hns3pf/hclge_debugfs.c | 296 ++++++++++++------ 3 files changed, 215 insertions(+), 100 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 9ee2863c207e3..2d2410fcc3997 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -202,6 +202,7 @@ enum hnae3_dbg_cmd { HNAE3_DBG_CMD_REG_RCB, HNAE3_DBG_CMD_REG_TQP, HNAE3_DBG_CMD_REG_MAC, + HNAE3_DBG_CMD_REG_DCB, HNAE3_DBG_CMD_UNKNOWN, };

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 2b2ce102c9c76..1e6fa7a1ef3d3 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -191,6 +191,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = { .buf_len = HNS3_DBG_READ_LEN, .init = hns3_dbg_common_file_init, }, + { + .name = "dcb", + .cmd = HNAE3_DBG_CMD_REG_DCB, + .dentry = HNS3_DBG_DENTRY_REG, + .buf_len = HNS3_DBG_READ_LEN, + .init = hns3_dbg_common_file_init, + }, };

static void hns3_dbg_fill_content(char *content, u16 len, @@ -508,10 +515,6 @@ static int hns3_dbg_tx_bd_info(struct hns3_dbg_data *d, char *buf, int len)

static void hns3_dbg_help(struct hnae3_handle *h) { -#define HNS3_DBG_BUF_LEN 256 - - char printf_buf[HNS3_DBG_BUF_LEN]; - dev_info(&h->pdev->dev, "available commands\n"); dev_info(&h->pdev->dev, "queue info <number>\n"); dev_info(&h->pdev->dev, "queue map\n"); @@ -531,13 +534,6 @@ static void hns3_dbg_help(struct hnae3_handle *h) dev_info(&h->pdev->dev, "dump qs shaper [qs id]\n"); dev_info(&h->pdev->dev, "dump umv info <func id>\n"); dev_info(&h->pdev->dev, "dump vlan filter <func id>\n"); - - 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, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c index 5059377058ed2..a9d7157b7ff74 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c @@ -388,120 +388,237 @@ static int hclge_dbg_dump_mac(struct hclge_dev *hdev, char *buf, int len) return hclge_dbg_dump_mac_speed_duplex(hdev, buf, len, &pos); }

-static void hclge_dbg_dump_dcb(struct hclge_dev *hdev, const char *cmd_buf) +static int hclge_dbg_dump_dcb_qset(struct hclge_dev *hdev, char *buf, int len, + int *pos) { - struct device *dev = &hdev->pdev->dev; struct hclge_dbg_bitmap_cmd *bitmap; - enum hclge_opcode_type cmd; - int rq_id, pri_id, qset_id; - int port_id, nq_id, pg_id; - struct hclge_desc desc[2]; + struct hclge_desc desc; + u16 qset_id, qset_num; + int ret; + + ret = hclge_tm_get_qset_num(hdev, &qset_num); + if (ret) + return ret;

- int cnt, ret; + *pos += scnprintf(buf + *pos, len - *pos, + "qset_id roce_qset_mask nic_qset_mask qset_shaping_pass qset_bp_status\n"); + for (qset_id = 0; qset_id < qset_num; qset_id++) { + ret = hclge_dbg_cmd_send(hdev, &desc, qset_id, 1, + HCLGE_OPC_QSET_DFX_STS); + if (ret) + return 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; + bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1]; + + *pos += scnprintf(buf + *pos, len - *pos, + "%04u %#x %#x %#x %#x\n", + qset_id, bitmap->bit0, bitmap->bit1, + bitmap->bit2, bitmap->bit3); }

- cmd = HCLGE_OPC_QSET_DFX_STS; - ret = hclge_dbg_cmd_send(hdev, desc, qset_id, 1, cmd); - if (ret) - goto err_dcb_cmd_send; + return 0; +}

- 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); +static int hclge_dbg_dump_dcb_pri(struct hclge_dev *hdev, char *buf, int len, + int *pos) +{ + struct hclge_dbg_bitmap_cmd *bitmap; + struct hclge_desc desc; + u8 pri_id, pri_num; + int ret;

- cmd = HCLGE_OPC_PRI_DFX_STS; - ret = hclge_dbg_cmd_send(hdev, desc, pri_id, 1, cmd); + ret = hclge_tm_get_pri_num(hdev, &pri_num); if (ret) - goto err_dcb_cmd_send; + return ret;

- 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); + *pos += scnprintf(buf + *pos, len - *pos, + "pri_id pri_mask pri_cshaping_pass pri_pshaping_pass\n"); + for (pri_id = 0; pri_id < pri_num; pri_id++) { + ret = hclge_dbg_cmd_send(hdev, &desc, pri_id, 1, + HCLGE_OPC_PRI_DFX_STS); + if (ret) + return ret;

- cmd = HCLGE_OPC_PG_DFX_STS; - ret = hclge_dbg_cmd_send(hdev, desc, pg_id, 1, cmd); - if (ret) - goto err_dcb_cmd_send; + bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1]; + + *pos += scnprintf(buf + *pos, len - *pos, + "%03u %#x %#x %#x\n", + pri_id, bitmap->bit0, bitmap->bit1, + bitmap->bit2); + } + + return 0; +} + +static int hclge_dbg_dump_dcb_pg(struct hclge_dev *hdev, char *buf, int len, + int *pos) +{ + struct hclge_dbg_bitmap_cmd *bitmap; + struct hclge_desc desc; + u8 pg_id; + int ret; + + *pos += scnprintf(buf + *pos, len - *pos, + "pg_id pg_mask pg_cshaping_pass pg_pshaping_pass\n"); + for (pg_id = 0; pg_id < hdev->tm_info.num_pg; pg_id++) { + ret = hclge_dbg_cmd_send(hdev, &desc, pg_id, 1, + HCLGE_OPC_PG_DFX_STS); + if (ret) + return ret; + + bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1]; + + *pos += scnprintf(buf + *pos, len - *pos, + "%03u %#x %#x %#x\n", + pg_id, bitmap->bit0, bitmap->bit1, + bitmap->bit2); + } + + return 0; +} + +static int hclge_dbg_dump_dcb_queue(struct hclge_dev *hdev, char *buf, int len, + int *pos) +{ + struct hclge_desc desc; + u16 nq_id; + int ret; + + *pos += scnprintf(buf + *pos, len - *pos, + "nq_id sch_nic_queue_cnt sch_roce_queue_cnt\n"); + for (nq_id = 0; nq_id < hdev->num_tqps; nq_id++) { + ret = hclge_dbg_cmd_send(hdev, &desc, nq_id, 1, + HCLGE_OPC_SCH_NQ_CNT); + if (ret) + return ret; + + *pos += scnprintf(buf + *pos, len - *pos, "%04u %#x", + nq_id, le32_to_cpu(desc.data[1])); + + ret = hclge_dbg_cmd_send(hdev, &desc, nq_id, 1, + HCLGE_OPC_SCH_RQ_CNT); + if (ret) + return ret; + + *pos += scnprintf(buf + *pos, len - *pos, + " %#x\n", + le32_to_cpu(desc.data[1])); + }

- 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); + return 0; +}

- cmd = HCLGE_OPC_PORT_DFX_STS; - ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1, cmd); +static int hclge_dbg_dump_dcb_port(struct hclge_dev *hdev, char *buf, int len, + int *pos) +{ + struct hclge_dbg_bitmap_cmd *bitmap; + struct hclge_desc desc; + u8 port_id = 0; + int ret; + + ret = hclge_dbg_cmd_send(hdev, &desc, port_id, 1, + HCLGE_OPC_PORT_DFX_STS); if (ret) - goto err_dcb_cmd_send; + return ret;

- 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); + bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1];

- cmd = HCLGE_OPC_SCH_NQ_CNT; - ret = hclge_dbg_cmd_send(hdev, desc, nq_id, 1, cmd); + *pos += scnprintf(buf + *pos, len - *pos, "port_mask: %#x\n", + bitmap->bit0); + *pos += scnprintf(buf + *pos, len - *pos, "port_shaping_pass: %#x\n", + bitmap->bit1); + + return 0; +} + +static int hclge_dbg_dump_dcb_tm(struct hclge_dev *hdev, char *buf, int len, + int *pos) +{ + struct hclge_desc desc[2]; + u8 port_id = 0; + int ret; + + ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1, + HCLGE_OPC_TM_INTERNAL_CNT); if (ret) - goto err_dcb_cmd_send; + return ret;

- dev_info(dev, "sch_nq_cnt: 0x%x\n", le32_to_cpu(desc[0].data[1])); + *pos += scnprintf(buf + *pos, len - *pos, "SCH_NIC_NUM: %#x\n", + le32_to_cpu(desc[0].data[1])); + *pos += scnprintf(buf + *pos, len - *pos, "SCH_ROCE_NUM: %#x\n", + le32_to_cpu(desc[0].data[2]));

- cmd = HCLGE_OPC_SCH_RQ_CNT; - ret = hclge_dbg_cmd_send(hdev, desc, nq_id, 1, cmd); + ret = hclge_dbg_cmd_send(hdev, desc, port_id, 2, + HCLGE_OPC_TM_INTERNAL_STS); if (ret) - goto err_dcb_cmd_send; + return ret;

- dev_info(dev, "sch_rq_cnt: 0x%x\n", le32_to_cpu(desc[0].data[1])); + *pos += scnprintf(buf + *pos, len - *pos, "pri_bp: %#x\n", + le32_to_cpu(desc[0].data[1])); + *pos += scnprintf(buf + *pos, len - *pos, "fifo_dfx_info: %#x\n", + le32_to_cpu(desc[0].data[2])); + *pos += scnprintf(buf + *pos, len - *pos, + "sch_roce_fifo_afull_gap: %#x\n", + le32_to_cpu(desc[0].data[3])); + *pos += scnprintf(buf + *pos, len - *pos, + "tx_private_waterline: %#x\n", + le32_to_cpu(desc[0].data[4])); + *pos += scnprintf(buf + *pos, len - *pos, "tm_bypass_en: %#x\n", + le32_to_cpu(desc[0].data[5])); + *pos += scnprintf(buf + *pos, len - *pos, "SSU_TM_BYPASS_EN: %#x\n", + le32_to_cpu(desc[1].data[0])); + *pos += scnprintf(buf + *pos, len - *pos, "SSU_RESERVE_CFG: %#x\n", + le32_to_cpu(desc[1].data[1])); + + if (hdev->hw.mac.media_type == HNAE3_MEDIA_TYPE_COPPER) + return 0; + + ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1, + HCLGE_OPC_TM_INTERNAL_STS_1); + if (ret) + return ret; + + *pos += scnprintf(buf + *pos, len - *pos, "TC_MAP_SEL: %#x\n", + le32_to_cpu(desc[0].data[1])); + *pos += scnprintf(buf + *pos, len - *pos, "IGU_PFC_PRI_EN: %#x\n", + le32_to_cpu(desc[0].data[2])); + *pos += scnprintf(buf + *pos, len - *pos, "MAC_PFC_PRI_EN: %#x\n", + le32_to_cpu(desc[0].data[3])); + *pos += scnprintf(buf + *pos, len - *pos, "IGU_PRI_MAP_TC_CFG: %#x\n", + le32_to_cpu(desc[0].data[4])); + *pos += scnprintf(buf + *pos, len - *pos, + "IGU_TX_PRI_MAP_TC_CFG: %#x\n", + le32_to_cpu(desc[0].data[5])); + + return 0; +} + +static int hclge_dbg_dump_dcb(struct hclge_dev *hdev, char *buf, int len) +{ + int pos = 0; + int ret; + + ret = hclge_dbg_dump_dcb_qset(hdev, buf, len, &pos); + if (ret) + return ret;

- cmd = HCLGE_OPC_TM_INTERNAL_STS; - ret = hclge_dbg_cmd_send(hdev, desc, 0, 2, cmd); + ret = hclge_dbg_dump_dcb_pri(hdev, buf, len, &pos); if (ret) - goto err_dcb_cmd_send; - - dev_info(dev, "pri_bp: 0x%x\n", le32_to_cpu(desc[0].data[1])); - dev_info(dev, "fifo_dfx_info: 0x%x\n", le32_to_cpu(desc[0].data[2])); - dev_info(dev, "sch_roce_fifo_afull_gap: 0x%x\n", - le32_to_cpu(desc[0].data[3])); - dev_info(dev, "tx_private_waterline: 0x%x\n", - le32_to_cpu(desc[0].data[4])); - dev_info(dev, "tm_bypass_en: 0x%x\n", le32_to_cpu(desc[0].data[5])); - dev_info(dev, "SSU_TM_BYPASS_EN: 0x%x\n", le32_to_cpu(desc[1].data[0])); - dev_info(dev, "SSU_RESERVE_CFG: 0x%x\n", le32_to_cpu(desc[1].data[1])); - - cmd = HCLGE_OPC_TM_INTERNAL_CNT; - ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1, cmd); + return ret; + + ret = hclge_dbg_dump_dcb_pg(hdev, buf, len, &pos); if (ret) - goto err_dcb_cmd_send; + return ret;

- dev_info(dev, "SCH_NIC_NUM: 0x%x\n", le32_to_cpu(desc[0].data[1])); - dev_info(dev, "SCH_ROCE_NUM: 0x%x\n", le32_to_cpu(desc[0].data[2])); + ret = hclge_dbg_dump_dcb_queue(hdev, buf, len, &pos); + if (ret) + return ret;

- cmd = HCLGE_OPC_TM_INTERNAL_STS_1; - ret = hclge_dbg_cmd_send(hdev, desc, port_id, 1, cmd); + ret = hclge_dbg_dump_dcb_port(hdev, buf, len, &pos); if (ret) - goto err_dcb_cmd_send; - - dev_info(dev, "TC_MAP_SEL: 0x%x\n", le32_to_cpu(desc[0].data[1])); - dev_info(dev, "IGU_PFC_PRI_EN: 0x%x\n", le32_to_cpu(desc[0].data[2])); - dev_info(dev, "MAC_PFC_PRI_EN: 0x%x\n", le32_to_cpu(desc[0].data[3])); - dev_info(dev, "IGU_PRI_MAP_TC_CFG: 0x%x\n", - le32_to_cpu(desc[0].data[4])); - dev_info(dev, "IGU_TX_PRI_MAP_TC_CFG: 0x%x\n", - le32_to_cpu(desc[0].data[5])); - return; + return ret;

-err_dcb_cmd_send: - dev_err(&hdev->pdev->dev, - "failed to dump dcb dfx, cmd = %#x, ret = %d\n", - cmd, ret); + return hclge_dbg_dump_dcb_tm(hdev, buf, len, &pos); }

static int hclge_dbg_dump_reg_cmd(struct hclge_dev *hdev, @@ -1955,7 +2072,6 @@ static void hclge_dbg_dump_vlan_filter(struct hclge_dev *hdev,

int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf) { -#define DUMP_REG_DCB "dump reg dcb" #define DUMP_VLAN_FILTER "dump vlan filter" #define DUMP_UMV_INFO "dump umv info"

@@ -1978,8 +2094,6 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf) hclge_dbg_dump_qos_buf_cfg(hdev); } else if (strncmp(cmd_buf, "dump mac tbl", 12) == 0) { hclge_dbg_dump_mac_table(hdev); - } else if (strncmp(cmd_buf, DUMP_REG_DCB, strlen(DUMP_REG_DCB)) == 0) { - hclge_dbg_dump_dcb(hdev, &cmd_buf[sizeof(DUMP_REG_DCB)]); } else if (strncmp(cmd_buf, "dump serv info", 14) == 0) { hclge_dbg_dump_serv_info(hdev); } else if (strncmp(cmd_buf, "dump mac tnl status", 19) == 0) { @@ -2083,6 +2197,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = { .cmd = HNAE3_DBG_CMD_REG_MAC, .dbg_dump = hclge_dbg_dump_mac, }, + { + .cmd = HNAE3_DBG_CMD_REG_DCB, + .dbg_dump = hclge_dbg_dump_dcb, + }, };

int hclge_dbg_read_cmd(struct hnae3_handle *handle, enum hnae3_dbg_cmd cmd,