net: hns3: add debugfs support for ptp info

Add a debugfs interface for dumping ptp information, which
is helpful for debugging.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index f6f524c..ba883b0 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -276,6 +276,7 @@ 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 a0edca8..c512a63 100644 (file)
--- 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[] = {
@@ -1059,8 +1066,10 @@ 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 0d433a5..6fc50d0 100644 (file)
--- 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,
        },