@@ -249,6 +249,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump mng tbl\n");
dev_info(&h->pdev->dev, "dump reset 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");
memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
strncat(printf_buf, "dump reg [[bios common] [ssu <prt_id>]",
@@ -109,6 +109,9 @@ enum hclge_opcode_type {
HCLGE_OPC_QUERY_LINK_STATUS = 0x0307,
HCLGE_OPC_CONFIG_MAX_FRM_SIZE = 0x0308,
HCLGE_OPC_CONFIG_SPEED_DUP = 0x0309,
+ HCLGE_OPC_QUERY_MAC_TNL_INT = 0x0310,
+ HCLGE_OPC_MAC_TNL_INT_EN = 0x0311,
+ HCLGE_OPC_CLEAR_MAC_TNL_INT = 0x0312,
HCLGE_OPC_SERDES_LOOPBACK = 0x0315,
/* PFC/Pause commands */
@@ -984,6 +984,26 @@ static void hclge_dbg_dump_ncl_config(struct hclge_dev *hdev, char *cmd_buf)
}
}
+/* hclge_dbg_dump_mac_tnl_status: print message about mac tnl interrupt
+ * @hdev: pointer to struct hclge_dev
+ */
+static void hclge_dbg_dump_mac_tnl_status(struct hclge_dev *hdev)
+{
+#define HCLGE_BILLION_NANO_SECONDS 1000000000
+
+ struct hclge_mac_tnl_stats stats;
+ unsigned long rem_nsec;
+
+ dev_info(&hdev->pdev->dev, "Recently generated mac tnl interruption:\n");
+
+ while (kfifo_get(&hdev->mac_tnl_log, &stats)) {
+ rem_nsec = do_div(stats.time, HCLGE_BILLION_NANO_SECONDS);
+ dev_info(&hdev->pdev->dev, "[%07lu.%03lu]status = 0x%x\n",
+ (unsigned long)stats.time, rem_nsec / 1000,
+ stats.status);
+ }
+}
+
int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
{
struct hclge_vport *vport = hclge_get_vport(handle);
@@ -1012,6 +1032,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
} else if (strncmp(cmd_buf, "dump ncl_config", 15) == 0) {
hclge_dbg_dump_ncl_config(hdev,
&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 {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
@@ -692,6 +692,16 @@ static int hclge_cmd_query_error(struct hclge_dev *hdev,
return ret;
}
+static int hclge_clear_mac_tnl_int(struct hclge_dev *hdev)
+{
+ struct hclge_desc desc;
+
+ hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CLEAR_MAC_TNL_INT, false);
+ desc.data[0] = cpu_to_le32(HCLGE_MAC_TNL_INT_CLR);
+
+ return hclge_cmd_send(&hdev->hw, &desc, 1);
+}
+
static int hclge_config_common_hw_err_int(struct hclge_dev *hdev, bool en)
{
struct device *dev = &hdev->pdev->dev;
@@ -911,6 +921,21 @@ static int hclge_config_mac_err_int(struct hclge_dev *hdev, bool en)
return ret;
}
+int hclge_config_mac_tnl_int(struct hclge_dev *hdev, bool en)
+{
+ struct hclge_desc desc;
+
+ hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MAC_TNL_INT_EN, false);
+ if (en)
+ desc.data[0] = cpu_to_le32(HCLGE_MAC_TNL_INT_EN);
+ else
+ desc.data[0] = 0;
+
+ desc.data[1] = cpu_to_le32(HCLGE_MAC_TNL_INT_EN_MASK);
+
+ return hclge_cmd_send(&hdev->hw, &desc, 1);
+}
+
static int hclge_config_ppu_error_interrupts(struct hclge_dev *hdev, u32 cmd,
bool en)
{
@@ -1611,6 +1636,7 @@ pci_ers_result_t hclge_handle_hw_ras_error(struct hnae3_ae_dev *ae_dev)
int hclge_handle_hw_msix_error(struct hclge_dev *hdev,
unsigned long *reset_requests)
{
+ struct hclge_mac_tnl_stats mac_tnl_stats;
struct device *dev = &hdev->pdev->dev;
u32 mpf_bd_num, pf_bd_num, bd_num;
enum hnae3_reset_type reset_level;
@@ -1745,6 +1771,31 @@ int hclge_handle_hw_msix_error(struct hclge_dev *hdev,
set_bit(HNAE3_GLOBAL_RESET, reset_requests);
}
+ /* query and clear mac tnl interruptions */
+ hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_QUERY_MAC_TNL_INT,
+ true);
+ ret = hclge_cmd_send(&hdev->hw, &desc[0], 1);
+ if (ret) {
+ dev_err(dev, "query mac tnl int cmd failed (%d)\n", ret);
+ goto msi_error;
+ }
+
+ status = le32_to_cpu(desc->data[0]);
+ if (status) {
+ /* When mac tnl interrupt occurs, we record current time and
+ * register status here in a fifo, then clear the status. So
+ * that if link status changes suddenly at some time, we can
+ * query them by debugfs.
+ */
+ mac_tnl_stats.time = local_clock();
+ mac_tnl_stats.status = status;
+ kfifo_put(&hdev->mac_tnl_log, mac_tnl_stats);
+ ret = hclge_clear_mac_tnl_int(hdev);
+ if (ret)
+ dev_err(dev, "clear mac tnl int failed (%d)\n", ret);
+ set_bit(HNAE3_NONE_RESET, reset_requests);
+ }
+
msi_error:
kfree(desc);
out:
@@ -47,6 +47,9 @@
#define HCLGE_NCSI_ERR_INT_TYPE 0x9
#define HCLGE_MAC_COMMON_ERR_INT_EN 0x107FF
#define HCLGE_MAC_COMMON_ERR_INT_EN_MASK 0x107FF
+#define HCLGE_MAC_TNL_INT_EN GENMASK(7, 0)
+#define HCLGE_MAC_TNL_INT_EN_MASK GENMASK(7, 0)
+#define HCLGE_MAC_TNL_INT_CLR GENMASK(7, 0)
#define HCLGE_PPU_MPF_ABNORMAL_INT0_EN GENMASK(31, 0)
#define HCLGE_PPU_MPF_ABNORMAL_INT0_EN_MASK GENMASK(31, 0)
#define HCLGE_PPU_MPF_ABNORMAL_INT1_EN GENMASK(31, 0)
@@ -115,6 +118,7 @@ struct hclge_hw_error {
enum hnae3_reset_type reset_level;
};
+int hclge_config_mac_tnl_int(struct hclge_dev *hdev, bool en);
int hclge_hw_error_set_state(struct hclge_dev *hdev, bool state);
pci_ers_result_t hclge_handle_hw_ras_error(struct hnae3_ae_dev *ae_dev);
int hclge_handle_hw_msix_error(struct hclge_dev *hdev,
@@ -2248,6 +2248,7 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
for (i = 0; i < hdev->num_vmdq_vport + 1; i++) {
handle = &hdev->vport[i].nic;
client->ops->link_status_change(handle, state);
+ hclge_config_mac_tnl_int(hdev, state);
rhandle = &hdev->vport[i].roce;
if (rclient && rclient->ops->link_status_change)
rclient->ops->link_status_change(rhandle,
@@ -7963,6 +7964,8 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
goto err_mdiobus_unreg;
}
+ INIT_KFIFO(hdev->mac_tnl_log);
+
hclge_dcb_ops_set(hdev);
timer_setup(&hdev->service_timer, hclge_service_timer, 0);
@@ -8116,6 +8119,7 @@ static void hclge_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
hclge_enable_vector(&hdev->misc_vector, false);
synchronize_irq(hdev->misc_vector.vector_irq);
+ hclge_config_mac_tnl_int(hdev, false);
hclge_hw_error_set_state(hdev, false);
hclge_cmd_uninit(hdev);
hclge_misc_irq_uninit(hdev);
@@ -7,6 +7,7 @@
#include <linux/types.h>
#include <linux/phy.h>
#include <linux/if_vlan.h>
+#include <linux/kfifo.h>
#include "hclge_cmd.h"
#include "hnae3.h"
@@ -660,6 +661,12 @@ struct hclge_rst_stats {
u32 reset_cnt; /* the number of reset */
};
+/* time and register status when mac tunnel interruption occur */
+struct hclge_mac_tnl_stats {
+ u64 time;
+ u32 status;
+};
+
/* For each bit of TCAM entry, it uses a pair of 'x' and
* 'y' to indicate which value to match, like below:
* ----------------------------------
@@ -686,6 +693,7 @@ struct hclge_rst_stats {
(y) = (_k_ ^ ~_v_) & (_k_); \
} while (0)
+#define HCLGE_MAC_TNL_LOG_SIZE 8
#define HCLGE_VPORT_NUM 256
struct hclge_dev {
struct pci_dev *pdev;
@@ -802,6 +810,9 @@ struct hclge_dev {
struct mutex umv_mutex; /* protect share_umv_size */
struct mutex vport_cfg_mutex; /* Protect stored vf table */
+
+ DECLARE_KFIFO(mac_tnl_log, struct hclge_mac_tnl_stats,
+ HCLGE_MAC_TNL_LOG_SIZE);
};
/* VPort level vlan tag configuration for TX direction */