From: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx>
Newer FW will send a new async event when it detects that
the chip's temperature has crossed the configured threshold value.
The driver will now notify hwmon and will log a warning message.
Cc: Jean Delvare <jdelvare@xxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-hwmon@xxxxxxxxxxxxxxx
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx>
Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 44 +++++++++++++++++++
.../net/ethernet/broadcom/bnxt/bnxt_hwmon.c | 8 ++++
.../net/ethernet/broadcom/bnxt/bnxt_hwmon.h | 5 +++
3 files changed, 57 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 5e97a3d93e87..c8e04c9501ee 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -2130,6 +2130,17 @@ static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id)
return INVALID_HW_RING_ID;
}
+#define BNXT_EVENT_THERMAL_CURRENT_TEMP(data2) \
+ ((data2) & ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_CURRENT_TEMP_MASK)
+
+#define BNXT_EVENT_THERMAL_THRESHOLD_TEMP(data2) \
+ (((data2) & \
+ ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_THRESHOLD_TEMP_MASK) >> \
+ ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_THRESHOLD_TEMP_SFT)
+
+#define EVENT_DATA1_THERMAL_THRESHOLD_TYPE(data1) \
+ ((data1) & ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_MASK)
+
static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
{
u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1);
@@ -2145,6 +2156,39 @@ static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DOORBELL_DROP_THRESHOLD:
netdev_warn(bp->dev, "One or more MMIO doorbells dropped by the device!\n");
break;
+ case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_THERMAL_THRESHOLD: {
+ char *threshold_type;
+ u32 attr;
+
+ switch (EVENT_DATA1_THERMAL_THRESHOLD_TYPE(data1)) {
+ case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_WARN:
+ attr = hwmon_temp_lcrit_alarm;
+ threshold_type = "warning";
+ break;
+ case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_CRITICAL:
+ attr = hwmon_temp_crit_alarm;
+ threshold_type = "critical";
+ break;
+ case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_FATAL:
+ attr = hwmon_temp_emergency_alarm;
+ threshold_type = "fatal";
+ break;
+ case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_SHUTDOWN:
+ attr = hwmon_temp_max_alarm;
+ threshold_type = "shutdown";
+ break;
+ default:
+ netdev_err(bp->dev, "Unknown Thermal threshold type event\n");
+ return;
+ }
+ netdev_warn(bp->dev, "Chip temperature has crossed the %s thermal threshold!\n",
+ threshold_type);
+ netdev_warn(bp->dev, "Temperature (In Celsius), Current: %lu, threshold: %lu\n",
+ BNXT_EVENT_THERMAL_CURRENT_TEMP(data2),
+ BNXT_EVENT_THERMAL_THRESHOLD_TEMP(data2));
+ bnxt_hwmon_notify_event(bp, attr);
+ break;
+ }
default:
netdev_err(bp->dev, "FW reported unknown error type %u\n",
err_type);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c
index f5affac1169a..483571264276 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c
@@ -18,6 +18,14 @@
#include "bnxt_hwrm.h"
#include "bnxt_hwmon.h"
+void bnxt_hwmon_notify_event(struct bnxt *bp, u32 attr)
+{
+ if (!bp->hwmon_dev)
+ return;
+
+ hwmon_notify_event(&bp->pdev->dev, hwmon_temp, attr, 0);
+}
+
static int bnxt_hwrm_temp_query(struct bnxt *bp, u8 *temp)
{
struct hwrm_temp_monitor_query_output *resp;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.h
index af310066687c..5cf127702764 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.h
@@ -11,9 +11,14 @@
#define BNXT_HWMON_H
#ifdef CONFIG_BNXT_HWMON
+void bnxt_hwmon_notify_event(struct bnxt *bp, u32 attr);
void bnxt_hwmon_uninit(struct bnxt *bp);
void bnxt_hwmon_init(struct bnxt *bp);
#else
+static inline void bnxt_hwmon_notify_event(struct bnxt *bp, u32 attr)
+{
+}
+
static inline void bnxt_hwmon_uninit(struct bnxt *bp)
{
}
--
2.30.1
<<attachment: smime.p7s>>
