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Subject[PATCH V2 net-next 2/6] net: hns3: Add "manager table" information query function
Date
From: liuzhongzhu <liuzhongzhu@huawei.com>

This patch prints manager table information.

debugfs command:
echo dump mng tbl > cmd

Sample Command:
root@(none)# echo dump mng tbl > cmd
entry|mac_addr |mask|ether|mask|vlan|mask|i_map|i_dir|e_type
00 |01:00:5e:00:00:01|0 |00000|0 |0000|0 |00 |00 |0
01 |c2:f1:c5:82:68:17|0 |00000|0 |0000|0 |00 |00 |0
root@(none)#

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 5 +-
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 19 +++++++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 66 ++++++++++++++++++++++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h | 12 ++++
4 files changed, 100 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 9a026556df0e..4c5a421456b7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -48,7 +48,7 @@ static int hns3_dbg_queue_info(struct hnae3_handle *h, char *cmd_buf)
* to prevent reference to invalid memory. And need to ensure
* that the following code is executed within 100ms.
*/
- if (test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
+ if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
return -EPERM;

@@ -210,6 +210,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump qos pause cfg\n");
dev_info(&h->pdev->dev, "dump qos pri map\n");
dev_info(&h->pdev->dev, "dump qos buf cfg\n");
+ dev_info(&h->pdev->dev, "dump mng tbl\n");
}

static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
@@ -254,7 +255,7 @@ static ssize_t hns3_dbg_cmd_write(struct file *filp, const char __user *buffer,
return 0;

/* Judge if the instance is being reset. */
- if (test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
+ if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
return 0;

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index b1ee6feb0caf..dcacfa089b74 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -237,6 +237,7 @@ enum hclge_opcode_type {
HCLGE_TM_QCN_MEM_INT_CFG = 0x1A14,
HCLGE_PPP_CMD0_INT_CMD = 0x2100,
HCLGE_PPP_CMD1_INT_CMD = 0x2101,
+ HCLGE_MAC_ETHERTYPE_IDX_RD = 0x2105,
HCLGE_NCSI_INT_EN = 0x2401,
};

@@ -744,6 +745,24 @@ struct hclge_cfg_tx_queue_pointer_cmd {
u8 rsv[14];
};

+#pragma pack(1)
+struct hclge_mac_ethertype_idx_rd_cmd {
+ u8 flags;
+ u8 resp_code;
+ __le16 vlan_tag;
+ u8 mac_add[6];
+ __le16 index;
+ __le16 ethter_type;
+ __le16 egress_port;
+ __le16 egress_queue;
+ __le16 rev0;
+ u8 i_port_bitmap;
+ u8 i_port_direction;
+ u8 rev1[2];
+};
+
+#pragma pack()
+
#define HCLGE_TSO_MSS_MIN_S 0
#define HCLGE_TSO_MSS_MIN_M GENMASK(13, 0)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 14577bbf3e11..77a11618040d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -407,6 +407,70 @@ static void hclge_dbg_dump_qos_buf_cfg(struct hclge_dev *hdev)
"dump qos buf cfg fail(0x%x), status is %d\n", cmd, ret);
}

+static void hclge_dbg_dump_mng_table(struct hclge_dev *hdev)
+{
+ struct hclge_mac_ethertype_idx_rd_cmd *req0;
+ char printf_buf[HCLGE_DBG_BUF_LEN];
+ struct hclge_desc desc;
+ int ret, i;
+
+ dev_info(&hdev->pdev->dev, "mng tab:\n");
+ memset(printf_buf, 0, HCLGE_DBG_BUF_LEN);
+ strncat(printf_buf,
+ "entry|mac_addr |mask|ether|mask|vlan|mask",
+ HCLGE_DBG_BUF_LEN - 1);
+ strncat(printf_buf + strlen(printf_buf),
+ "|i_map|i_dir|e_type|pf_id|vf_id|q_id|drop\n",
+ HCLGE_DBG_BUF_LEN - strlen(printf_buf) - 1);
+
+ dev_info(&hdev->pdev->dev, "%s", printf_buf);
+
+ for (i = 0; i < HCLGE_DBG_MNG_TBL_MAX; i++) {
+ hclge_cmd_setup_basic_desc(&desc, HCLGE_MAC_ETHERTYPE_IDX_RD,
+ true);
+ req0 = (struct hclge_mac_ethertype_idx_rd_cmd *)&desc.data;
+ req0->index = cpu_to_le16(i);
+
+ ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+ if (ret) {
+ dev_err(&hdev->pdev->dev,
+ "call hclge_cmd_send fail, ret = %d\n", ret);
+ return;
+ }
+
+ if (!req0->resp_code)
+ continue;
+
+ memset(printf_buf, 0, HCLGE_DBG_BUF_LEN);
+ snprintf(printf_buf, HCLGE_DBG_BUF_LEN,
+ "%02u |%02x:%02x:%02x:%02x:%02x:%02x|",
+ req0->index, req0->mac_add[0], req0->mac_add[1],
+ req0->mac_add[2], req0->mac_add[3], req0->mac_add[4],
+ req0->mac_add[5]);
+
+ snprintf(printf_buf + strlen(printf_buf),
+ HCLGE_DBG_BUF_LEN - strlen(printf_buf),
+ "%x |%04x |%x |%04x|%x |%02x |%02x |",
+ !!(req0->flags & HCLGE_DBG_MNG_MAC_MASK_B),
+ req0->ethter_type,
+ !!(req0->flags & HCLGE_DBG_MNG_ETHER_MASK_B),
+ req0->vlan_tag & HCLGE_DBG_MNG_VLAN_TAG,
+ !!(req0->flags & HCLGE_DBG_MNG_VLAN_MASK_B),
+ req0->i_port_bitmap, req0->i_port_direction);
+
+ snprintf(printf_buf + strlen(printf_buf),
+ HCLGE_DBG_BUF_LEN - strlen(printf_buf),
+ "%d |%d |%02d |%04d|%x\n",
+ !!(req0->egress_port & HCLGE_DBG_MNG_E_TYPE_B),
+ req0->egress_port & HCLGE_DBG_MNG_PF_ID,
+ (req0->egress_port >> 3) & HCLGE_DBG_MNG_VF_ID,
+ req0->egress_queue,
+ !!(req0->egress_port & HCLGE_DBG_MNG_DROP_B));
+
+ dev_info(&hdev->pdev->dev, "%s", printf_buf);
+ }
+}
+
static void hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, u8 stage,
bool sel_x, u32 loc)
{
@@ -478,6 +542,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
hclge_dbg_dump_qos_pri_map(hdev);
} else if (strncmp(cmd_buf, "dump qos buf cfg", 16) == 0) {
hclge_dbg_dump_qos_buf_cfg(hdev);
+ } else if (strncmp(cmd_buf, "dump mng tbl", 12) == 0) {
+ hclge_dbg_dump_mng_table(hdev);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
index 50fd0b15fb8e..6097cd858081 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
@@ -4,6 +4,18 @@
#ifndef __HCLGE_DEBUGFS_H
#define __HCLGE_DEBUGFS_H

+#define HCLGE_DBG_BUF_LEN 256
+#define HCLGE_DBG_MNG_TBL_MAX 64
+
+#define HCLGE_DBG_MNG_VLAN_MASK_B BIT(0)
+#define HCLGE_DBG_MNG_MAC_MASK_B BIT(1)
+#define HCLGE_DBG_MNG_ETHER_MASK_B BIT(2)
+#define HCLGE_DBG_MNG_E_TYPE_B BIT(11)
+#define HCLGE_DBG_MNG_DROP_B BIT(13)
+#define HCLGE_DBG_MNG_VLAN_TAG 0x0FFF
+#define HCLGE_DBG_MNG_PF_ID 0x0007
+#define HCLGE_DBG_MNG_VF_ID 0x00FF
+
#pragma pack(1)

struct hclge_qos_pri_map_cmd {
--
2.11.0

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