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Date: Tue, 1 Jun 2021 19:34:25 +0800
From: Guangbin Huang <huangguangbin2@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<salil.mehta@...wei.com>, <lipeng321@...wei.com>,
<tanhuazhong@...wei.com>, <huangguangbin2@...wei.com>
Subject: [PATCH net-next 2/2] net: hns3: add debugfs support for ptp info
From: Huazhong Tan <tanhuazhong@...wei.com>
Add a debugfs interface for dumping ptp information, which
is helpful for debugging.
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 13 ++++-
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 55 ++++++++++++++++++++++
3 files changed, 67 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 545dcbc7af49..dfdb22b0ccdc 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -273,6 +273,7 @@ enum hnae3_dbg_cmd {
HNAE3_DBG_CMD_MAC_MC,
HNAE3_DBG_CMD_MNG_TBL,
HNAE3_DBG_CMD_LOOPBACK,
+ HNAE3_DBG_CMD_PTP_INFO,
HNAE3_DBG_CMD_INTERRUPT_INFO,
HNAE3_DBG_CMD_RESET_INFO,
HNAE3_DBG_CMD_IMP_INFO,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index cf1efd2f4a0f..6d57709ddbf5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -316,6 +316,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
.buf_len = HNS3_DBG_READ_LEN,
.init = hns3_dbg_common_file_init,
},
+ {
+ .name = "ptp_info",
+ .cmd = HNAE3_DBG_CMD_PTP_INFO,
+ .dentry = HNS3_DBG_DENTRY_COMMON,
+ .buf_len = HNS3_DBG_READ_LEN,
+ .init = hns3_dbg_common_file_init,
+ },
};
static struct hns3_dbg_cap_info hns3_dbg_cap[] = {
@@ -1056,8 +1063,10 @@ int hns3_dbg_init(struct hnae3_handle *handle)
handle->hnae3_dbgfs);
for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++) {
- if (hns3_dbg_cmd[i].cmd == HNAE3_DBG_CMD_TM_NODES &&
- ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2)
+ if ((hns3_dbg_cmd[i].cmd == HNAE3_DBG_CMD_TM_NODES &&
+ ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2) ||
+ (hns3_dbg_cmd[i].cmd == HNAE3_DBG_CMD_PTP_INFO &&
+ !test_bit(HNAE3_DEV_SUPPORT_PTP_B, ae_dev->caps)))
continue;
if (!hns3_dbg_cmd[i].init) {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 0d433a5ff807..6fc50d09b9db 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -2173,6 +2173,57 @@ static int hclge_dbg_dump_vlan_config(struct hclge_dev *hdev, char *buf,
return hclge_dbg_dump_vlan_offload_config(hdev, buf, len, &pos);
}
+static int hclge_dbg_dump_ptp_info(struct hclge_dev *hdev, char *buf, int len)
+{
+ struct hclge_ptp *ptp = hdev->ptp;
+ u32 sw_cfg = ptp->ptp_cfg;
+ unsigned int tx_start;
+ unsigned int last_rx;
+ int pos = 0;
+ u32 hw_cfg;
+ int ret;
+
+ pos += scnprintf(buf + pos, len - pos, "phc %s's debug info:\n",
+ ptp->info.name);
+ pos += scnprintf(buf + pos, len - pos, "ptp enable: %s\n",
+ test_bit(HCLGE_PTP_FLAG_EN, &ptp->flags) ?
+ "yes" : "no");
+ pos += scnprintf(buf + pos, len - pos, "ptp tx enable: %s\n",
+ test_bit(HCLGE_PTP_FLAG_TX_EN, &ptp->flags) ?
+ "yes" : "no");
+ pos += scnprintf(buf + pos, len - pos, "ptp rx enable: %s\n",
+ test_bit(HCLGE_PTP_FLAG_RX_EN, &ptp->flags) ?
+ "yes" : "no");
+
+ last_rx = jiffies_to_msecs(ptp->last_rx);
+ pos += scnprintf(buf + pos, len - pos, "last rx time: %lu.%lu\n",
+ last_rx / MSEC_PER_SEC, last_rx % MSEC_PER_SEC);
+ pos += scnprintf(buf + pos, len - pos, "rx count: %lu\n", ptp->rx_cnt);
+
+ tx_start = jiffies_to_msecs(ptp->tx_start);
+ pos += scnprintf(buf + pos, len - pos, "last tx start time: %lu.%lu\n",
+ tx_start / MSEC_PER_SEC, tx_start % MSEC_PER_SEC);
+ pos += scnprintf(buf + pos, len - pos, "tx count: %lu\n", ptp->tx_cnt);
+ pos += scnprintf(buf + pos, len - pos, "tx skipped count: %lu\n",
+ ptp->tx_skipped);
+ pos += scnprintf(buf + pos, len - pos, "tx timeout count: %lu\n",
+ ptp->tx_timeout);
+ pos += scnprintf(buf + pos, len - pos, "last tx seqid: %u\n",
+ ptp->last_tx_seqid);
+
+ ret = hclge_ptp_cfg_qry(hdev, &hw_cfg);
+ if (ret)
+ return ret;
+
+ pos += scnprintf(buf + pos, len - pos, "sw_cfg: %#x, hw_cfg: %#x\n",
+ sw_cfg, hw_cfg);
+
+ pos += scnprintf(buf + pos, len - pos, "tx type: %d, rx filter: %d\n",
+ ptp->ts_cfg.tx_type, ptp->ts_cfg.rx_filter);
+
+ return 0;
+}
+
static int hclge_dbg_dump_mac_uc(struct hclge_dev *hdev, char *buf, int len)
{
hclge_dbg_dump_mac_list(hdev, buf, len, true);
@@ -2245,6 +2296,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = {
.dbg_dump = hclge_dbg_dump_loopback,
},
{
+ .cmd = HNAE3_DBG_CMD_PTP_INFO,
+ .dbg_dump = hclge_dbg_dump_ptp_info,
+ },
+ {
.cmd = HNAE3_DBG_CMD_INTERRUPT_INFO,
.dbg_dump = hclge_dbg_dump_interrupt,
},
--
2.8.1
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