diff options
| author | Tony Krowiak <akrowiak@linux.ibm.com> | 2023-01-18 15:31:11 -0500 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-01-22 18:42:36 +0100 |
| commit | 7cb7636a1ac158c00f9da8f09e333c1ddd881eca (patch) | |
| tree | 76aa228fa819f45281e57312f33edf38afc982f0 /drivers/s390/crypto | |
| parent | 51d4d9877087685ac577a4a314f85e1b2046cae6 (diff) | |
| download | linux-next-7cb7636a1ac158c00f9da8f09e333c1ddd881eca.tar.gz | |
s390/vfio_ap: increase max wait time for reset verification
Increase the maximum time to wait for verification of a queue reset
operation to 200ms.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-7-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/vfio_ap_ops.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index 3bf012b3508e..cd488639a15b 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; @@ -1626,11 +1629,12 @@ 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) |