On 2022-12-13 16:44, Tony Krowiak wrote:
Verification that the asynchronous ZAPQ function has completed only
needs
to be done when the response code indicates the function was
successfully
initiated; so, let's call the apq_reset_check function immediately
after
the response code zero is returned from the ZAPQ.
Signed-off-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
---
drivers/s390/crypto/vfio_ap_ops.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c
b/drivers/s390/crypto/vfio_ap_ops.c
index 5bf2d93ae8af..c0cf5050be59 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1645,6 +1645,9 @@ static int vfio_ap_mdev_reset_queue(struct
vfio_ap_queue *q)
switch (status.response_code) {
case AP_RESPONSE_NORMAL:
ret = 0;
+ /* if the reset has not completed, wait for it to take effect */
+ if (!status.queue_empty || status.irq_enabled)
+ ret = apq_reset_check(q);
break;
case AP_RESPONSE_RESET_IN_PROGRESS:
/*
@@ -1674,10 +1677,6 @@ static int vfio_ap_mdev_reset_queue(struct
vfio_ap_queue *q)
return -EIO;
}
- /* wait for the reset to take effect */
- if (!status.queue_empty && status.irq_enabled)
- ret = apq_reset_check(q);
-
free_resources:
vfio_ap_free_aqic_resources(q);
Reviewed-by: Harald Freudenberger <freude@xxxxxxxxxxxxx>
