crypto: qat - add fatal error notification

Notify a fatal error condition and optionally reset the device in
the following cases:
  * if the device reports an uncorrectable fatal error through an
    interrupt
  * if the heartbeat feature detects that the device is not
    responding

This patch is based on earlier work done by Shashank Gupta.

Signed-off-by: Mun Chun Yep <mun.chun.yep@intel.com>
Reviewed-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: Markas Rapoportas <markas.rapoportas@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
index f88b1bc6857ee70d1399668c7d72c4c03faae117..fe8428d4ff392abbbe2477df173e4b03c84311b4 100644 (file)
--- a/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
@@ -229,6 +229,9 @@ 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");
                return;
        }
 

diff --git a/drivers/crypto/intel/qat/qat_common/adf_isr.c b/drivers/crypto/intel/qat/qat_common/adf_isr.c
index a13d9885d60f80f3c5f5bff816ee1284bfa3b2e8..020d213f4c991d7808b02aad86057733c135fff7 100644 (file)
--- a/drivers/crypto/intel/qat/qat_common/adf_isr.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_isr.c
@@ -139,8 +139,13 @@ static bool adf_handle_ras_int(struct adf_accel_dev *accel_dev)
 
        if (ras_ops->handle_interrupt &&
            ras_ops->handle_interrupt(accel_dev, &reset_required)) {
-               if (reset_required)
+               if (reset_required) {
                        dev_err(&GET_DEV(accel_dev), "Fatal error, reset required\n");
+                       if (adf_notify_fatal_error(accel_dev))
+                               dev_err(&GET_DEV(accel_dev),
+                                       "Failed to notify fatal error\n");
+               }
+
                return true;
        }