On 2022-12-13 16:44, Tony Krowiak wrote:
Increase the maximum time to wait for verification of a queue reset
operation to 200ms.
Signed-off-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
---
drivers/s390/crypto/vfio_ap_ops.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c
b/drivers/s390/crypto/vfio_ap_ops.c
index dbf681715a6d..e80c5a6b91be 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -30,6 +30,9 @@
#define AP_QUEUE_UNASSIGNED "unassigned"
#define AP_QUEUE_IN_USE "in use"
+#define MAX_RESET_CHECK_WAIT 200 /* Sleep max 200ms for reset check */
+#define AP_RESET_INTERVAL 20 /* Reset sleep interval (20ms) */
+
static int vfio_ap_mdev_reset_queues(struct ap_queue_table *qtable);
static struct vfio_ap_queue *vfio_ap_find_queue(int apqn);
static const struct vfio_device_ops vfio_ap_matrix_dev_ops;
@@ -1615,11 +1618,12 @@ static int apq_status_check(int apqn, struct
ap_queue_status *status)
static int apq_reset_check(struct vfio_ap_queue *q)
{
- int iters = 2, ret;
+ int ret;
+ int iters = MAX_RESET_CHECK_WAIT / AP_RESET_INTERVAL;
struct ap_queue_status status;
- while (iters--) {
- msleep(20);
+ for (; iters > 0; iters--) {
+ msleep(AP_RESET_INTERVAL);
status = ap_tapq(q->apqn, NULL);
ret = apq_status_check(q->apqn, &status);
if (ret != -EBUSY)
Reviewed-by: Harald Freudenberger <freude@xxxxxxxxxxxxx>
