From: Furong Zhou <furong.zhou@xxxxxxxxx>
When the driver detects an heartbeat failure, it starts the recovery
flow. Set a limit so that the number of events is limited in case the
heartbeat status is read too frequently.
Signed-off-by: Furong Zhou <furong.zhou@xxxxxxxxx>
Reviewed-by: Ahsan Atta <ahsan.atta@xxxxxxxxx>
Reviewed-by: Markas Rapoportas <markas.rapoportas@xxxxxxxxx>
---
.../crypto/intel/qat/qat_common/adf_heartbeat.c | 17 ++++++++++++++---
.../crypto/intel/qat/qat_common/adf_heartbeat.h | 3 +++
2 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
index fe8428d4ff39..ef23cd817818 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
@@ -205,6 +205,19 @@ static int adf_hb_get_status(struct adf_accel_dev *accel_dev)
return ret;
}
+static void adf_heartbeat_reset(struct adf_accel_dev *accel_dev)
+{
+ u64 curr_time = adf_clock_get_current_time();
+ u64 last_reset = curr_time - accel_dev->heartbeat->last_hb_reset_time;
+
+ if (last_reset < ADF_CFG_HB_RESET_MS)
+ return;
+
+ accel_dev->heartbeat->last_hb_reset_time = curr_time;
+ if (adf_notify_fatal_error(accel_dev))
+ dev_err(&GET_DEV(accel_dev), "Failed to notify fatal error\n");
+}
+
void adf_heartbeat_status(struct adf_accel_dev *accel_dev,
enum adf_device_heartbeat_status *hb_status)
{
@@ -229,9 +242,7 @@ void adf_heartbeat_status(struct adf_accel_dev *accel_dev,
"Heartbeat ERROR: QAT is not responding.\n");
*hb_status = HB_DEV_UNRESPONSIVE;
hb->hb_failed_counter++;
- if (adf_notify_fatal_error(accel_dev))
- dev_err(&GET_DEV(accel_dev),
- "Failed to notify fatal error\n");
+ adf_heartbeat_reset(accel_dev);
return;
}
diff --git a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.h b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.h
index 75db563f23ba..900876baac66 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.h
+++ b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.h
@@ -13,6 +13,8 @@ struct dentry;
#define ADF_CFG_HB_TIMER_DEFAULT_MS 500
#define ADF_CFG_HB_COUNT_THRESHOLD 3
+#define ADF_CFG_HB_RESET_MS 5000
+
enum adf_device_heartbeat_status {
HB_DEV_UNRESPONSIVE = 0,
HB_DEV_ALIVE,
@@ -30,6 +32,7 @@ struct adf_heartbeat {
unsigned int hb_failed_counter;
unsigned int hb_timer;
u64 last_hb_check_time;
+ u64 last_hb_reset_time;
bool ctrs_cnt_checked;
struct hb_dma_addr {
dma_addr_t phy_addr;
--
2.34.1
