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[2/5] crypto: qat - disable IOV in adf_dev_stop()

Message ID 20240717114544.364892-3-michal.witwicki@intel.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: qat - Disable VFs through a sysfs interface | expand

Commit Message

Michal Witwicki July 17, 2024, 11:44 a.m. UTC 
Disabling IOV has the side effect of re-enabling the AEs that might
attempt to do DMAs into the heartbeat buffers.
Move the disable_iov() function in adf_dev_stop() before the AEs are
stopped.

Fixes: ed8ccaef52fa ("crypto: qat - Add support for SRIOV")
Signed-off-by: Michal Witwicki <michal.witwicki@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
---
 drivers/crypto/intel/qat/qat_common/adf_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/crypto/intel/qat/qat_common/adf_init.c b/drivers/crypto/intel/qat/qat_common/adf_init.c
index 593fe9abe88c..f189cce7d153 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_init.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_init.c
@@ -323,6 +323,8 @@  static void adf_dev_stop(struct adf_accel_dev *accel_dev)
 	if (hw_data->stop_timer)
 		hw_data->stop_timer(accel_dev);
 
+	hw_data->disable_iov(accel_dev);
+
 	if (wait)
 		msleep(100);
 
@@ -386,8 +388,6 @@  static void adf_dev_shutdown(struct adf_accel_dev *accel_dev)
 
 	adf_tl_shutdown(accel_dev);
 
-	hw_data->disable_iov(accel_dev);
-
 	if (test_bit(ADF_STATUS_IRQ_ALLOCATED, &accel_dev->status)) {
 		hw_data->free_irq(accel_dev);
 		clear_bit(ADF_STATUS_IRQ_ALLOCATED, &accel_dev->status);