[PATCH net-next 5/8] net: hns3: add support for dumping UC and MC MAC list

From: Huazhong Tan
Date: Thu Apr 23 2020 - 22:24:47 EST


From: Jian Shen <shenjian15@xxxxxxxxxx>

This patch adds support for dumping entries of UC and MC MAC list,
which help checking whether a MAC address being added into hardware
or not.

Signed-off-by: Jian Shen <shenjian15@xxxxxxxxxx>
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 2 +
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 51 ++++++++++++++++++++++
2 files changed, 53 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index c934f32..fe7fb56 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -262,6 +262,8 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump mac tnl status\n");
dev_info(&h->pdev->dev, "dump loopback\n");
dev_info(&h->pdev->dev, "dump qs shaper [qs id]\n");
+ dev_info(&h->pdev->dev, "dump uc mac list <func id>\n");
+ dev_info(&h->pdev->dev, "dump mc mac list <func id>\n");

memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 66c1ad3..6cfa825 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -1441,6 +1441,49 @@ static void hclge_dbg_dump_qs_shaper(struct hclge_dev *hdev,
hclge_dbg_dump_qs_shaper_single(hdev, qsid);
}

+static int hclge_dbg_dump_mac_list(struct hclge_dev *hdev, const char *cmd_buf,
+ bool is_unicast)
+{
+ struct hclge_mac_node *mac_node, *tmp;
+ struct hclge_vport *vport;
+ struct list_head *list;
+ u32 func_id;
+ int ret;
+
+ ret = kstrtouint(cmd_buf, 0, &func_id);
+ if (ret < 0) {
+ dev_err(&hdev->pdev->dev,
+ "dump mac list: bad command string, ret = %d\n", ret);
+ return -EINVAL;
+ }
+
+ if (func_id >= hdev->num_alloc_vport) {
+ dev_err(&hdev->pdev->dev,
+ "function id(%u) is out of range(0-%u)\n", func_id,
+ hdev->num_alloc_vport - 1);
+ return -EINVAL;
+ }
+
+ vport = &hdev->vport[func_id];
+
+ list = is_unicast ? &vport->uc_mac_list : &vport->mc_mac_list;
+
+ dev_info(&hdev->pdev->dev, "vport %u %s mac list:\n",
+ func_id, is_unicast ? "uc" : "mc");
+ dev_info(&hdev->pdev->dev, "mac address state\n");
+
+ spin_lock_bh(&vport->mac_list_lock);
+
+ list_for_each_entry_safe(mac_node, tmp, list, node) {
+ dev_info(&hdev->pdev->dev, "%pM %d\n",
+ mac_node->mac_addr, mac_node->state);
+ }
+
+ spin_unlock_bh(&vport->mac_list_lock);
+
+ return 0;
+}
+
int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
{
#define DUMP_REG "dump reg"
@@ -1485,6 +1528,14 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
} else if (strncmp(cmd_buf, "dump qs shaper", 14) == 0) {
hclge_dbg_dump_qs_shaper(hdev,
&cmd_buf[sizeof("dump qs shaper")]);
+ } else if (strncmp(cmd_buf, "dump uc mac list", 16) == 0) {
+ hclge_dbg_dump_mac_list(hdev,
+ &cmd_buf[sizeof("dump uc mac list")],
+ true);
+ } else if (strncmp(cmd_buf, "dump mc mac list", 16) == 0) {
+ hclge_dbg_dump_mac_list(hdev,
+ &cmd_buf[sizeof("dump mc mac list")],
+ false);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
--
2.7.4