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net: hns3: add support for dump MAC ID and loopback status in debugfs 

The MAC ID and loopback status information are obtained from
the hardware, which will be helpful for debugging. This patch
adds support for these two items in debugfs.

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>
This commit is contained in:
Yufeng Mo 2020-02-19 09:23:32 +08:00 committed by David S. Miller
parent a8adbb8a91
commit ded45d406c
4 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
View File

@ -260,6 +260,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump m7 info\n");
dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
dev_info(&h->pdev->dev, "dump mac tnl status\n");
dev_info(&h->pdev->dev, "dump loopback\n");
memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",

55
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
View File

@ -1171,6 +1171,57 @@ static void hclge_dbg_dump_ncl_config(struct hclge_dev *hdev,
}
}
static void hclge_dbg_dump_loopback(struct hclge_dev *hdev,
const char *cmd_buf)
{
struct phy_device *phydev = hdev->hw.mac.phydev;
struct hclge_config_mac_mode_cmd *req_app;
struct hclge_serdes_lb_cmd *req_serdes;
struct hclge_desc desc;
u8 loopback_en;
int ret;
req_app = (struct hclge_config_mac_mode_cmd *)desc.data;
req_serdes = (struct hclge_serdes_lb_cmd *)desc.data;
dev_info(&hdev->pdev->dev, "mac id: %u\n", hdev->hw.mac.mac_id);
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAC_MODE, true);
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
"failed to dump app loopback status, ret = %d\n", ret);
return;
}
loopback_en = hnae3_get_bit(le32_to_cpu(req_app->txrx_pad_fcs_loop_en),
HCLGE_MAC_APP_LP_B);
dev_info(&hdev->pdev->dev, "app loopback: %s\n",
loopback_en ? "on" : "off");
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_SERDES_LOOPBACK, true);
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
"failed to dump serdes loopback status, ret = %d\n",
ret);
return;
}
loopback_en = req_serdes->enable & HCLGE_CMD_SERDES_SERIAL_INNER_LOOP_B;
dev_info(&hdev->pdev->dev, "serdes serial loopback: %s\n",
loopback_en ? "on" : "off");
loopback_en = req_serdes->enable &
HCLGE_CMD_SERDES_PARALLEL_INNER_LOOP_B;
dev_info(&hdev->pdev->dev, "serdes parallel loopback: %s\n",
loopback_en ? "on" : "off");
if (phydev)
dev_info(&hdev->pdev->dev, "phy loopback: %s\n",
phydev->loopback_enabled ? "on" : "off");
}
/* hclge_dbg_dump_mac_tnl_status: print message about mac tnl interrupt
* @hdev: pointer to struct hclge_dev
*/
@ -1271,6 +1322,7 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
{
#define DUMP_REG "dump reg"
#define DUMP_TM_MAP "dump tm map"
#define DUMP_LOOPBACK "dump loopback"
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
@ -1304,6 +1356,9 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
&cmd_buf[sizeof("dump ncl_config")]);
} else if (strncmp(cmd_buf, "dump mac tnl status", 19) == 0) {
hclge_dbg_dump_mac_tnl_status(hdev);
} else if (strncmp(cmd_buf, DUMP_LOOPBACK,
strlen(DUMP_LOOPBACK)) == 0) {
hclge_dbg_dump_loopback(hdev, &cmd_buf[sizeof(DUMP_LOOPBACK)]);
} else if (strncmp(cmd_buf, "dump qs shaper", 14) == 0) {
hclge_dbg_dump_qs_shaper(hdev,
&cmd_buf[sizeof("dump qs shaper")]);

3
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -824,6 +824,8 @@ static void hclge_get_mac_stat(struct hnae3_handle *handle,
static int hclge_parse_func_status(struct hclge_dev *hdev,
struct hclge_func_status_cmd *status)
{
#define HCLGE_MAC_ID_MASK 0xF
if (!(status->pf_state & HCLGE_PF_STATE_DONE))
return -EINVAL;
@ -833,6 +835,7 @@ static int hclge_parse_func_status(struct hclge_dev *hdev,
else
hdev->flag &= ~HCLGE_FLAG_MAIN;
hdev->hw.mac.mac_id = status->mac_id & HCLGE_MAC_ID_MASK;
return 0;
}

1
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -249,6 +249,7 @@ enum HCLGE_MAC_DUPLEX {
#define QUERY_ACTIVE_SPEED 1
struct hclge_mac {
u8 mac_id;
u8 phy_addr;
u8 flag;
u8 media_type; /* port media type, e.g. fibre/copper/backplane */