diff options
| author | Tony Krowiak <akrowiak@linux.ibm.com> | 2023-08-15 20:43:29 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-08-18 15:09:29 +0200 |
| commit | e1f17f8ea93d8fc9d6d0562d38bb0a5fb3e8355e (patch) | |
| tree | a0005636f1417aa21b54d6a39c9173c142823ee9 /drivers/s390 | |
| parent | s390/vfio-ap: use work struct to verify queue reset (diff) | |
| download | linux-e1f17f8ea93d8fc9d6d0562d38bb0a5fb3e8355e.tar.xz linux-e1f17f8ea93d8fc9d6d0562d38bb0a5fb3e8355e.zip | |
s390/vfio-ap: handle queue state change in progress on reset
A new APQSW response code (0xA) indicating the designated queue is in the
process of being bound or associated to a configuration may be returned
from the PQAP(ZAPQ) command. This patch introduces code that will verify
when the PQAP(ZAPQ) command can be re-issued after receiving response code
0xA.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Tested-by: Viktor Mihajlovski <mihajlov@linux.ibm.com>
Link: https://lore.kernel.org/r/20230815184333.6554-9-akrowiak@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/crypto/vfio_ap_ops.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index 3a59f1c5390f..43dea259fe23 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -1647,7 +1647,8 @@ static void apq_reset_check(struct work_struct *reset_work) status.irq_enabled); } else { if (q->reset_status.response_code == AP_RESPONSE_RESET_IN_PROGRESS || - q->reset_status.response_code == AP_RESPONSE_BUSY) { + q->reset_status.response_code == AP_RESPONSE_BUSY || + q->reset_status.response_code == AP_RESPONSE_STATE_CHANGE_IN_PROGRESS) { status = ap_zapq(q->apqn, 0); memcpy(&q->reset_status, &status, sizeof(status)); continue; @@ -1679,6 +1680,7 @@ static void vfio_ap_mdev_reset_queue(struct vfio_ap_queue *q) case AP_RESPONSE_NORMAL: case AP_RESPONSE_RESET_IN_PROGRESS: case AP_RESPONSE_BUSY: + case AP_RESPONSE_STATE_CHANGE_IN_PROGRESS: /* * Let's verify whether the ZAPQ completed successfully on a work queue. */ |